CN101018924A

CN101018924A - Hinge apparatus for heavy door having automatic return function

Info

Publication number: CN101018924A
Application number: CNA2005800283940A
Authority: CN
Inventors: 崔淳雨
Original assignee: I One Innotech Co Ltd
Current assignee: I One Innotech Co Ltd
Priority date: 2004-08-24
Filing date: 2005-08-23
Publication date: 2007-08-15
Also published as: WO2006036044A1; KR100586262B1; KR20060018461A

Abstract

A hinge apparatus having an automatic return function for use in a heavy door, having a pair of hinges which includes a pair of camshafts having cam diagram lengths different from each other. The hinge apparatus includes a central body fixedly coupled with a first hinge and first and second guide vessels fixedly coupled with the upper/lower side ends of a second hinge, respectively. A pair of shafts are fixedly installed in the central body opposing each other, and the first and secondhinges connected with the shafts are installed in the first and second guide vessels, respectively. A cam diagram of first camshaft is partially formed so that the first hinge operates only at an initial time of opening a door and a last time of returning the door, and the second hinge is a general hinge having an automatic return function.

Description

A kind of hinge means that is used for the band automatic return function of heavy door

Technical field

The present invention relates to a kind of hinge means that is used for the band automatic return function of heavy door, particularly relate to a kind of like this hinge means that is used for the band automatic return function of heavy door, it comprises two confining liquid hydraulic circuits, with cam diagram (cam diagram) camshaft that length is different corresponding to these two confining liquid hydraulic circuits, thereby under the situation that does not increase the hinge means external diameter, keep the power that heavy door is closed by the different camshaft of above-mentioned pair of cams figure length, to open the required power of door simultaneously and reduce to minimumly, at an easy rate heavy door be opened can use less power.

Background technology

In general, hinge means separates two parts as required, or around axle an assembly is stacked on another parts.The typical case of hinge is a left side that the comprises horizontal actuator/right rotation hinge means that is used for door or window frame; Or be used for refrigerator, mobile phone or notebook computer comprise vertical actuator/following swing hinge device.

Korean Utility Model No.0271646 provides a kind of bat-handle switch door gear of prior art, and wherein hydraulic pressure door closer and spring door closer are disposed separately respectively, and combine.

Be used in combination at hinge means under the situation of spring door closer and hydraulic pressure door closer, the required power of opening the door grows proportionately with the open angle of door, so the user need use bigger power when opening heavy door.

In addition, because the rotating inertia force that produces on the hinge means closing direction increases in proportion with the open angle of door, because large-scale or heavy door has very high speed when closing, therefore may in the heavy or large-scale door of quick closedown, damage the user.

In addition, the single camshaft hinge means that Korea S patent of invention No.435188 provides a kind of use to have spiral cam figure, the wherein final speed of closing the door is accurately set, and stable simultaneously multistage automatic return speed setting structure is stabilized and prevents excessive velocities at closing time.

Yet the light-duty or small-sized door that this hinge means do not need normally to be applied to bigger power to close for example is used for kraut refrigerator (a kind of storage facilities that is used for storing the traditional food Pickles of fermented food such as Korea S), perhaps general small refrigerator.Similarly, owing to the damping force on the hinge means is very not enough, therefore using it for having on the heavy or large-scale door of marked difference with small-sized door on the weight, is very difficult.

Consider the weight of large-scale door, hinge means can be had and the corresponding suitably damping force of large-scale door, need to increase the used power of closing the door.For this reason, must increase the external diameter of hinge means.Or rather, the inner chamber of formation hydraulic circuit and other all parts all need to select for use large-scale, meet the suitable damping force of the weight of large-scale door with generation, and increase the damping force of door thus.

If yet the diameter of hinge means increase significantly, open the required power of this large-scale door and also can increase pro rata with the open angle of door.Can become difficult more so open heavy door or large-scale door.

Say further, under the situation that the hinge means external diameter that uses on above-mentioned door increases, the center of hinge means, i.e. Men rotation central axis, can surpass for make that a smooth rotation sets the rotation central axis reference value.So under opposite extreme situations, door possibly can't open or (oppositely) closes.

In addition, be affected the time near door or the pedestrian that carries bulky items, because the external diameter of this hinge means increases thereby protrudes significantly than door through hinge means.

Summary of the invention

Technical problem

For addressing the above problem, the objective of the invention is to propose a kind of hinge means that is used to the large-scale heavy door of automatic return function, wherein comprise at least two closed hydraulic circuit, and have two at its lifting length overhead cam pattern different camshaft and two returning springs, therefore to pass through two springs, under the situation that does not increase the hinge means diameter, keep the required power of this large-scale heavy door of closing, and simultaneously by use the above-mentioned a pair of camshaft that has different cam diagram length respectively will open the door required power reduce to minimum, thereby make large-scale heavy door can be at an easy rate be opened under the less situation exerting oneself.

Another object of the present invention provides a kind of like this hinge means that is used to the large-scale heavy door of automatic return function, it has the cam diagram length of hydraulic circuit structure and lifting through hole, rise simultaneously and descend with the guiding pair of pistons, wherein, when opening the door, need use two kinds of power, first kind to be that all are applied in the power on the door maximum, when the open angle that is applicable to door is in 0 ° to 15 °; Second kind of power is because in the above-mentioned pair of pistons is placed in the decline state, is half of first kind of power approximately so be reduced to, when an open angle that is applicable to is in 15 ° to 90 °.This large-scale heavy door just can be opened at an easy rate like this.

Another object of the present invention provides a kind of like this hinge means that is used to the large-scale heavy door of automatic return function (promptly increasing the required power of closing the door), it comprises first hydraulic circuit, it only works at the initial period that opens the door and the final stage of closing the door, and is used to reduce the required power and increase the required power of closing the door of opening the door; And second hydraulic circuit, wherein the hydraulic control bar is inserted in the oil footpath that forms on piston rod, You flow thus, and promptly the rate of climb of piston can be controlled according to the lifting position of piston with being transformed.

Another object of the present invention provides a kind of like this hinge means that is used to the large-scale heavy door of automatic return function, and it increases the required power of door of closing by increasing at least one hydraulic circuit in the longitudinal direction.

Another object of the present invention provides a kind of hinge means that is used to the large-scale heavy door of automatic return function, and it by the shape of assembled hydraulic control lever and cam diagram, and controls the speed of closing the door with respect to the first and second lifting through holes on the camshaft multistagely.

Another object of the present invention provide a kind of like this be used for large-scale heavy door return hinge means automatically, it comprises hydraulic circuit, flap valve is provided with recess, and providing constant damping force when closing, thereby the speed of guaranteeing to close door is a constant.

Another object of the present invention provide a kind of like this be used for large-scale heavy door return hinge means automatically; it comprises the overvoltage protection valve; with suddenly at closing time, prevent by the overvoltage that produces in the epicoele, the damage of the various O type rings that are used for secure seal main body and piston as the external force of high wind and so on.

Another object of the present invention provide a kind of like this be used for large-scale heavy door return hinge means automatically, it can maintain the open mode of door certain angle part by suitably setting cam diagram with respect to the one the second lifting through holes on the camshaft.

The technical solution scheme

In order to realize above-mentioned purpose of the present invention, according to a first aspect of the invention, proposed a kind of be used for large-scale heavy door return hinge means automatically, described any one that return automatically in the hinge means and first and second hinges is fixed together, and returning automatically at closing time, the described hinge means that returns automatically comprises:

Central body, an one periphery is fixed on the central authorities of described first hinge;

First and second guiding tubes, its periphery be fixed on respectively described second hinge on/downside, wherein the first and second vertical guiding grooves and the third and fourth vertical guiding groove form in opposed facing position, and first and second chambeies that are filled with oil form therein, keep gap corresponding to the height of described center main part with this;

First and second camshafts are rotated by ordering about relative to external force of being produced in described first and second guiding tubes when door rotates, and wherein first and second fixedly inserted in the described central body and toward each other; First and second cylinders that form from described first and second expansions are rotatably installed on the inner periphery of described first and second guiding tubes respectively; Be formed with the first and second lifting bullports and the third and fourth lifting bullport, the cam diagram that the described first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually along the described first and second cylindrical neighborings with inserting;

First and second pilot pins, two end are connected to the described first and second vertical guiding grooves and the third and fourth vertical guiding groove via the described first and second lifting through holes and the third and fourth lifting through hole respectively;

First and second piston rods, its each end connects with the middle body of described first and second pilot pins respectively with inserting, and the mode to slide according to the rotation of described first and second camshafts and along the described first and second vertical guiding grooves and the third and fourth vertical guiding groove, rise and descend along the described first and second cylindrical inner peripherys of described first and second camshafts; Be formed with the first and second triton holes of vertical connection neighboring respectively at the other end of described first and second piston rods;

First and second pistons, its each side central authorities have first and second connection holes of the described other end that is connected to described first and second piston rods respectively, be formed with first and second center through hole that are communicated with described first and second connection holes respectively at its opposite side, its excircle is slidably disposed on respectively on the inner surface of described first and second guiding grooves, and first and second chambers are divided into top and the bottom respectively;

First and second flap valve, it is placed in first and second pistons, in order to increasing and to reduce the oil body flow that in the chamber up and down of described first and second chambers, flows mutually according to the rising of described first and second pistons and decline, thereby control the rising/decrease speed of described first and second pistons;

First and second sealing caps, on itself and described first and second guiding grooves/the lower end sealed attachment, thus in described first and second guiding grooves, form independently hydraulic circuit respectively; And

First and second elastomeric elements, it is placed in described first top and described second bottom respectively, flexibly to support described first and second pistons; And provide respectively and make described first and second pistons be returned to the restoring force of initial position returning Men Shineng,

Wherein, the described first and second lifting bullports of described first and second camshafts and the third and fourth lifting bullport are with relative direction setting, and a pair of cam diagram length in the described first and second lifting bullports and the third and fourth lifting bullport is longer than another right cam diagram length.

According to a second aspect of the invention, proposed a kind of be used for large-scale heavy door return hinge means automatically, described any one that return automatically in the hinge dress and first and second hinges fixed, and can return automatically at closing time, and the described hinge means that returns automatically comprises:

Central body, an one periphery is fixed on the central authorities of described first hinge, the inboard of described central body is divided into first and second chambers by isolated part, from the inside relative position of described first and second chambers of described central body, form the first and second vertical guiding grooves and the third and fourth vertical guiding groove respectively up and down;

First and second fixed parts, its each a side link with the side of the top and the bottom of described second hinge respectively, and remain in the state that makes the distance that described central body can insert;

First and second camshafts, ordering about relative to external force of being produced in described first and second fixed parts when door rotates rotated, wherein first and second fixedly inserted in described first and second fixed parts, are arranged on the inner rim of described first and second chambers of described central body respectively rotationally with described first and second first and second cylinders that removably connect; Be formed with the first and second lifting bullports and the third and fourth lifting bullport, the cam diagram that the described first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually along the described first and second cylindrical neighborings with inserting;

First and second piston rods, its each upper end is connected by described first and second pilot pins, and the mode to slide according to the rotation of described first and second camshafts and along the described first and second vertical guiding grooves and the third and fourth vertical guiding groove, rise and descend along the described first and second cylindrical inner peripherys of described first and second camshafts; Be formed with the first and second triton holes of its neighboring of vertical connection respectively at the other end of described first and second piston rods;

First and second elastomeric elements, it is placed in the bottom and described second top in described first chamber respectively, flexibly to support described first and second pistons; And provide respectively and make described first and second pistons be returned to the restoring force of initial position returning Men Shineng,

According to a third aspect of the present invention, proposed a kind of be used for large-scale heavy door return hinge means automatically, described any one that return the hinge means and first and second hinges automatically fixed, and can return automatically at closing time, and the described hinge means that returns automatically comprises:

Central body, an one periphery is fixed on the central authorities of described first hinge, in the relative position of the inner rim of described central body, form the first and second vertical guiding grooves and the third and fourth vertical guiding groove respectively up and down, have chamber in the inboard of described central body;

The first piston bar, the one end is connected by described first pilot pin, and the mode to slide according to the rotation of described first camshaft and along the described first and second vertical guiding grooves, rises and descends along the cylindrical inner periphery of described first camshaft;

First piston form on the other end expansion ground of described first piston bar, and its excircle places the inner periphery of described central body slidably;

Second piston rod, the mid portion of one end and described second pilot pin is linked together, and the mode to slide according to the rotation of described first and second camshafts and along the described third and fourth vertical guiding groove, rise and descend along the cylindrical inner periphery of described second camshaft; Be not formed with the triton hole of its neighboring of vertical connection at the other end of described second piston rod;

Second piston, the central authorities of one side have the connection holes that connects with the other end of described second piston rod, have the center through hole that is communicated with above-mentioned connection holes at its opposite side, the excircle of described second piston slides at the inner periphery of the chamber of described central body, and described chamber is divided into top and the bottom;

Flap valve, it is placed in described second piston, in order to increasing and to reduce the oil body flow that flows mutually according to the rising of described second piston and decline in described chamber up and down, thereby controls the rising/decrease speed of described second piston;

First and second sealing caps, its respectively with described central body on/lower end sealing connection; And

Elastomeric element, it is installed in the described upper chamber, flexibly supporting described first and second pistons, and and provide respectively and make described first and second pistons be returned to the restoring force of initial position returning Men Shineng,

In the present invention, the described first and second lifting through holes only comprise that an open angle is 0 °-15 ° the first lifting part, and described third and fourth through hole comprises that an open angle is the second lifting part that 0 °-15 ° first lifting part and door open angle are 15 °-90 °, wherein, the lifting of first and second lifting bullports part partly has identical cam diagram length with first lifting of the third and fourth lifting bullport.

In the case, preferably, the cam angle degree of first lifting part is set greatlyyer than the cam angle degree of second lifting part.

In addition, preferably, the cam length smaller of lifting bullport is set to when the open angle of door is 0 °-15 ° and operates in the first and second lifting bullports and the third and fourth lifting bullport.

In addition, first and second flap valve are suitable for using circle or spherical valve actuator.

According to a fourth aspect of the present invention, propose a kind of be used for large-scale heavy door return hinge means automatically, described any one that return the hinge means and first and second hinges automatically fixed, and can return automatically at closing time, and the described hinge means that returns automatically comprises:

First and second;

Central body, an one periphery is fixed on the centre of described first hinge, and described first and second insertions are wherein and be in relative position;

First and second guiding tubes, its periphery be fixed on respectively described second hinge on/downside, first and second chambeies that are filled with oil form therein, keep gap corresponding to the height of described center main part with this;

First and second lifting units, it lays respectively on the inner periphery of described first and second guiding tubes, and when door rotated, the torque actuated by producing in the described axle or first and second guiding tubes made first and second pilot pins move up and down;

First and second hydraulic circuits, it comprises first and second piston rods, described first and second pilot pins in the top and the bottom of described first and second piston rods and described first and second lifting units link, and carry out elevating movement according to the rising and the decline of described first and second pilot pins; First and second pistons, itself and described first and second piston rods link, and the state in being inserted in described first and second guiding tubes is separated into chamber up and down to first and second chambers respectively, when opening the door, elevating movement according to described piston in described first and second hydraulic circuits has the first oily flow, and, have the second oily flow littler than the described first oily flow at closing time;

First and second sealing caps, on itself and described first and second guiding tubes/the lower end sealed attachment, thus in described first and second guiding tubes, form independently hydraulic circuit respectively; And

First and second elastomeric elements, it is placed in the top in described first chamber and the bottom in described second chamber respectively, and flexibly supporting described first and second pistons, and you can well imagine energy supply in the time-division of opening the door and enough make first and second pistons be returned to the power of initial position,

Wherein, any one in described first and second lifting units only operated in predetermined door open angle scope.

According to a fifth aspect of the present invention, proposed a kind of be used for large-scale heavy door return hinge means automatically, described any one that return the hinge means and first and second hinges automatically fixed, and can return automatically at closing time, and the described hinge means that returns automatically comprises:

First and second;

Central body, an one periphery is fixed on the centre of described first hinge, and first and second are inserted in the described central bodies and are in relative position;

First and second guiding tubes, its periphery be fixed on respectively described second hinge on/downside, and first and second chambeies that are filled with oil form therein, keep gap corresponding to the height of described center main part with this;

First hydraulic circuit, it comprises the first piston bar, changes the bottom of piston rod and first pilot pin in described first lifting unit and links, and carry out elevating movement according to the rising and the decline of described first pilot pin; And first piston, itself and described first piston bar link and the state in being inserted in described first guiding tube is separated into chamber up and down to first chamber, when opening the door according to the rising of described first piston, the flow that flows into lower chambers from the upper chamber of first chamber is the first oily flow, and at closing time, the flow that the lower chambers of first chamber flows into upper chamber is the second oily flow littler than the described first oily flow;

Second hydraulic circuit, it comprises second piston rod, changes the upper end of piston rod and second pilot pin in described second lifting unit and links, and carry out elevating movement according to described second pilot pin rising and decline; At least one piston, itself and described second piston rod link and second chamber are separated into chamber up and down; And at least one spacer assembly, under the state in being inserted in described second guiding tube, with in described second guiding groove, separate according to space that be multiplied, between the described piston; When opening the door according to the decline of described at least one piston, the oily flow that flows into upper chamber from the lower chambers of described second chamber is the first oily flow, and at closing time according to the rising of described at least one piston, the oily flow that flows into lower chambers from the upper chamber of second chamber is the second oily flow littler than the first oily flow, and the described the two the second oily flows change according to the door opening angle;

First and second sealing caps, on itself and described first and second guiding tubes/the lower end sealing joins, thereby forms independently hydraulic circuit respectively in described first and second guiding tubes; And

First and second elastomeric elements, it is placed in the top of described first chamber and the bottom of described second chamber respectively, flexibly to support described first and second pistons; And the described restoring force that makes first and second pistons be returned to initial position when opening the door can be provided respectively,

According to the of the present invention the 4th and the 5th aspect, in this hinge means, each in first and second lifting units all comprises:

The first and second vertical guiding grooves and the third and fourth vertical guiding groove form up and down in the inboard relative position of described first and second guiding tubes;

First and second camshafts, it is driven by the relative external force that produces in described first and second guiding tubes when door rotates and rotates, wherein first and second described central bodies of fixing insertion also toward each other, first and second cylinders that are formed into from described first and second expansions are placed in the inner periphery of described first and second guiding tubes respectively rotationally, be formed with the first and second lifting bullports and the third and fourth lifting bullport, the cam diagram that the described first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually along the described first and second cylindrical neighborings with inserting;

In addition, second hydraulic circuit also comprises:

Actuator comprises second piston rod, and second pilot pin in its top and described second lifting unit links, and according to the lifting of described second pilot pin and lifting; And at least one piston, itself and described second piston rod link, and second chamber is separated into up and down chamber, wherein, comprise the first oil footpath and at least one second oil footpath in addition in second piston rod and described at least one piston, it moves between chamber up and down described according to the rotation of door;

At least one spacer assembly, it is according to the number of pistons that increases exponentially, and interior part in described second guiding tube, between the described piston space is separated;

At least one flap valve, it is placed at least one second oil footpath of described piston, and only opens feasible oil flows into upper chamber from lower chambers oil footpath when opening the door; And

The hydraulic control bar, the one end is supported by described second sealing cap, its front end is inserted in the oil of first in described second piston rod footpath, to flow into the oil mass size of lower chambers via the described first oil footpath according to the gear control of described actuator, and controlling the rising and the decrease speed of actuator at closing time thus multistagely, this actuator is driven by the restoring force in described second elastomeric element and rises and descend.

In this case, described second hydraulic circuit is the biliquid hydraulic circuit, then the oil of first in second piston rod of described actuator footpath comprises: the first pair oil directly is positioned at a distance of the bottom of described first oil of distance middle body directly, so that oil can flow into the top and the bottom of each chamber; The second secondary oil footpath interconnects the top of the described first secondary oil footpath and described second chamber; The 3rd secondary oil footpath is interconnected the bottom of the described first secondary oil footpath and described second chamber; Fourth officer oil footpath is interconnected the top of the described first secondary oil footpath and the 3rd chamber;

Described hydraulic control bar comprises: a pair of high speed part setter of constant diameter, and it has bigger oily flow; A pair of low speed part setter, it is positioned at the downside of described a pair of high speed part setter, and be taper, so You flow along with diameter from top to the bottom increase and change, make thus through the oily flow of described low speed part setter less than oily flow through described high speed part setter;

Described a pair of low speed part setter is made compensation to the minimizing of the restoring force in second elastomeric element because by from described second and the top of the 3rd chamber oil stream that flows to the described first and second chamber bottoms increase gradually according to the lifting position of piston.

In addition, the present position length of above-mentioned a pair of high speed part setter and a pair of low speed part setter is variable, and its main element that returns hinge means automatically according to use is decided, and determines the tapering of described low speed part setter thereupon.

Simultaneously, described second hydraulic circuit also comprises:

At least one flap valve, it is placed in each lower part of piston, and be installed on the valve support member, described valve support member has at least one the 3rd oil footpath that communicates with described at least one second oil footpath, and described at least one flap valve is only opened when opening the door and is made oil flow into upper chamber from lower chambers;

At least one overvoltage protection valve, it is flexibly at each piston lower support valve support member, when door is closed with normal speed, do not work, and at door during, between the periphery of described valve support member and described second guiding tube, form the 4th oil footpath by very big external force quick closedown; And

According to of the present invention first to the 5th aspect, this first lifting unit that returns automatically in the hinge means is only operated in the setting unlatching scope (for example 0 ° to 15 °) of door.

First hinge of the hinge among the present invention connects firmly and second hinge and doorframe connect firmly with door, and perhaps on the contrary, first hinge of hinge connects firmly mutually with doorframe and second hinge and connect firmly mutually.

In according to the present invention, pass through in the hinge means of above-mentioned configuration, any one cam diagram length in the pair of cams axle is formed longer than another, making pair of pistons by this camshaft be ordered about simultaneously when the opening angle of door is in such as 0 ° to 15 ° thus rises and descends, and when the opening angle of door is in such as 15 ° to 90 °, only rises and descend by the piston that moves with a bigger camshaft of described pair of cams axle cam length.Can under the situation that does not increase the hinge means external diameter, provide the required power of closing the door according to the present invention like this, and can for example be 15 ° to 90 ° at the opening angle of door the time, use than the less power of required power of opening the door when being 0 ° to 15 ° at the opening angle of door and open door.

Advantageous effects

As mentioned above, in according to the present invention, pass through in the hinge means of above-mentioned configuration, by a pair of camshaft with the cam diagram length that has nothing in common with each other, and one subtend piston returning spring that restoring force is provided when the initial time that opens the door and door return, act on simultaneously, but only there is a return spring to act on constantly, and differently sets the scope of the rising and the descending motion of pair of pistons separately at other of switch door.Therefore, the required power of closing the door is held, because a pair of returning spring acted on simultaneously in the initial sum of opening the door last moment of closing the door, and reduced the power of opening the door, this be because the open and close door At All Other Times in only have a returning spring to work, therefore can easily use less power to open heavy large-scale door, and increase reliability of products and provide convenience for the user.

In addition, Men closing velocity can be by carrying out Multistage Control with respect to the first and second lifting through holes combination hydraulic control bar of camshaft and the shape of cam diagram.

Say further, pass through to add one or more hydraulic circuits and replenish enough damping forces according to hinge means of the present invention, enough damping forces can be provided, with the rate of climb of controlling piston in the heavy large-scale door (consider door weight increase rather than in housing, play the increase of the component body diameter of effect).

Description of drawings

Above-mentioned and other target of the present invention and advantage will become existing and apparent describe the preferred implementation of stupid invention in detail at the reference accompanying drawing after, wherein:

Fig. 1 is that the large-scale heavy type of first embodiment of the invention is returned sectional drawing hinge means, along its length automatically;

Fig. 2 A is the stereogram of pair of cams axle, and the piston rod that as shown in Figure 1 large-scale heavy type of its guiding is returned in the hinge means automatically moves up and down according to the switch of door;

Fig. 2 B show pilot pin and be in compressive state returning spring, according to the position of the operation of the hinge means in the lifting bullport of the pair of cams axle among Fig. 2 A.

The enlarged drawing of the running status when Fig. 3 A, 3B represent that a discoid valve actuator is in A shown in Fig. 1 and B position respectively;

Fig. 4 A, 4B have represented another embodiment of flap valve shown in Fig. 3 A, the 3B, the i.e. enlarged drawing of ball valve actuator respectively;

Fig. 5 A is positioned at the piston of initial position and the sectional drawing of returning spring adjuster, and wherein first and second pistons lay respectively at top dead and bottom dead center;

Fig. 5 B has represented that first and second pistons change to 15 ° and do respectively and rise and oil flows the piston during down maneuver process at the opening angle of door from 0 °;

Fig. 5 C has represented that when first piston stops second piston makees the oil of down maneuver and flow through journey, and the angle of wherein opening the door is between 15 ° to 90 °;

Fig. 5 D has represented that when first piston stops second piston makees the oil of vertical motion and flow through journey, and the angle of wherein closing the door is between 15 ° to 90 °;

Fig. 5 E has represented that the oil when first and second pistons are side by side done rising and down maneuver flows through journey, and wherein a door open angle is changed to 0 ° according to being closed to from 15 ° of door;

To fade to along with closing the door be 0 o'clock to Fig. 5 F for the opening angle of door, is positioned at the piston of initial position and the sectional drawing of returning spring adjuster, and wherein first and second pistons lay respectively at top dead and bottom dead center;

Fig. 6 is the fragmentary cross-sectional view that is used for adjusting the elastic force setter of the elastic force of returning spring in the sealing cap as shown in Figure 1;

Fig. 7 is that second embodiment of the invention large-scale heavy type is returned sectional drawing hinge means, along its length automatically;

Fig. 8 is the length direction sectional drawing that returns hinge means according to the large-scale heavy type of the 3rd embodiment of the present invention automatically;

Fig. 9 returns sectional drawing hinge means, along its length automatically according to the large-scale heavy type of the 4th embodiment of the present invention;

Figure 10 A to Figure 10 C is respectively the fragmentary cross-sectional view of oil stream situation when doing down maneuver according to the actuator of the 4th embodiment of the present invention when opening the door; And

Figure 10 D to Figure 10 E is respectively the fragmentary cross-sectional view according to actuator oil stream situation when doing vertical motion at closing time of the 4th embodiment of the present invention.

The specific embodiment

Describe the large-scale heavy hinge means according to the preferred embodiment for the present invention below with reference to accompanying drawings, identical in the accompanying drawings Reference numeral is represented components identical.

According to Fig. 1 to Fig. 3 B the complete configuration that large-scale heavy type of the present invention is returned hinge means is automatically described below.

At first, first embodiment of the invention be used for large-scale heavy door return any one that hinge means 100 is fixed in first hinge 10 and second hinge 20 automatically, and can return automatically at closing time.This returns hinge means automatically and comprises: an one periphery is fixed on the central body 11 in the middle of first hinge 10; First and second guiding tubes (vessel) 21,23, its periphery is fixed on the upper and lower side of second hinge 20 respectively, wherein, first and second vertical guiding groove 22a, the 22b and third and fourth vertical guiding groove 24a, the 24b form (consulting Fig. 5 A to 5F) up and down in the inboard opposed facing position of second hinge 20.

In this case, preferably make the gap between first guiding tube 21 and second guiding tube 23 corresponding, thereby central body 11 can seamlessly be inserted between first guiding tube 21 and second guiding tube 23 with the height of central body 11.

For ease of explaination, first and second hinges are fixed on doorframe (or fixed part) and door (movable part) respectively as mentioned above.It is with (but being not limited to) this kind situation normally in using: when any one in first and second hinges was fixed on doorframe (or fixed part), another just was fixed on door (movable part).

In addition, first and second seal covers 93,97 link with the end of first and

second guiding tubes

21,23 towards central body respectively, and first and second end caps 91,95 (itself and

air discharge bolt

91a, 95a and link) respectively the other end with first and

second guiding tubes

21,23 link, leak to prevent that first and second guiding tubes, 21, the 23 inboard fry dried food ingredients that inject from giving birth to.

Simultaneously, first and

second camshafts

30,60 are rotated by ordering about relative to external force of producing when door rotates of first and

second guiding tubes

21,23, wherein first and second 31,61 are fixed to following state by

spring catch

31a, 61a respectively, wherein, insert for first and second 31,61 in the central bodies 11 and toward each other; Can be placed in the interior week of first and

second guiding tubes

21,23 respectively by first and second 31,61 first and

second cylinders

33,63 that are extended to with changeing.

At this, the first and

second lifting bullport

34a, 34b and the third and

fourth lifting bullport

64a, 64b have the spiral shape of the symmetrical structure that can move mutually, and embed ground along the periphery of first and

second cylinders

33,63 respectively and form.

As shown in Fig. 2 A, the length of the first and

second lifting bullport

34a, 34b in first camshaft 30 is less than the third and

fourth lifting bullport

64a, 64b in second camshaft 60.The end of any one is the open end until cylinder part 33 among the first and second lifting bullport 34a, the 34b.In addition, the end of the third and

fourth lifting bullport

64a, 64b is formed in cylinder part 63 and closes in second camshaft 60.

In Fig. 2 A, for convenience of the function of lifting through hole among the key-drawing 2B, the first and

second lifting bullport

34a, 34b in first camshaft 30 and the helical profile of the third and

fourth lifting bullport

64a, 64b in second camshaft 60 are represented as has same direction.Yet in fact, the first and

second lifting bullport

34a, 34b in first camshaft 30 and the third and fourth lifting bullport 64a, the 64b in second camshaft 60 have opposite direction.

First and second lifting bullport 34as, 34b relevant with

lifting piston

53,83 and the function of the third and

fourth lifting bullport

64a, 64b will be described in detail later.

In the present invention, to describe pair of

pistons

53,83 subsequently side by side operated in the last moment of the automatic return of door, increase significantly thus damping force and thereby increase the power close the door, this gives the credit to the first and second lifting bullport 34a of guiding first piston 53, the special construction of 34b.

Flexibly supporting the back will make the repulsion of the returning spring 111,113 of the pair of

pistons

53,83 described and be applied between the interior week and

axle

31,61 of central body 11.Therefore, when

camshaft

30 and 60 rotated, 71a, 71b pushed respectively in the

camshaft

30,60 with first and second thrust bearings (thrust bearing), to reduce pivoting friction and noise.

In addition, the first and second journal bearing 75a, 75b are connected in respectively between cylinder part 33 upper ends and first seal cover 93 of first camshaft 30, and between cylinder part 63 upper ends and second seal cover 97 of second camshaft 60.Make the first and second

radial bearing

75a, 75b as thrust bearing 71a, 71b thus, be pushed into respectively in the

camshaft

30,60, pivoting friction and noise when rotating to reduce

camshaft

30,60.

In this case, the first and second

elastic washer

73a, 73b place respectively between the first thrust bearing 71a and first seal cover 93, and between the second thrust bearing 71b and second seal cover 97.The first and second

elastic washer

73a, 73b have removed the frictional force when central body 11 touches first and

second guiding tubes

21,23, thereby can prevent the decline in advance of the first and second guiding tube transfer power.

Simultaneously, the two ends of first and second pilot pins 41,43 are connected to first and second vertical guiding groove 22a, the 22b and third and fourth vertical guiding groove 24a, the 24b via the first and

second lifting bullport

34a, 34b and the third and

fourth lifting bullport

64a, 64b respectively.

In addition, first and second pilot pins 41,43 middle body is engaged in first and second piston rods 51 with inserting respectively, each end of 81, first and

second piston rods

51,81 along first and

second camshafts

30,60 first and

second cylinders

33,63 inner peripherys rise and descend, promptly, according to first and

second camshafts

30,60 rotation and along the first and second vertical guiding groove 22a, the 22b and the third and fourth vertical guiding

groove

24a, 24b slides, at first and second piston rods 51, be formed with the first and second triton hole 51a of vertical connection neighboring on 81 the other end respectively, 81a.

Further, first and

second piston rods

51,81 are formed with each end of through

hole

51a, 81a and all removably connect with the coupling slot 53a, the 83b that are formed centrally in first and

second pistons

53,83.

Like this, the neighboring of first and

second pistons

53,83 just places on the inner rim of first and

second guiding tubes

21,23 respectively slidably, and does the interlock motion with first and second piston rods 51,81.And first and

second pistons

53,83 are separated into the first upper and

lower chamber

21a, 21b and the second upper and

lower chamber

23a, 23b with the inner space of first and

second guiding tubes

21,23 respectively.

As shown in Fig. 3 A, 3B, first and

second pistons

53,83 are littler than

connection holes

53b, 83b on diameter, and simultaneously, the first and second center through hole 53a, the 83a that is communicated with

connection holes

53a, 83a respectively forms in first and second pistons 53,83.2 of the centre of Fig. 3 A, 3B add line and represent oily flow path.

Therefore, hinge means comprises the first oil footpath that is communicated with the first upper and

lower chamber

21a, 21b, that is, and and the through hole 51a in the first piston bar 51 and the first center through hole 53a; And the second oil footpath that is communicated with the second upper and

lower chamber

24a, 24b, that is, and the through hole 81a in second piston rod 81 and the first center through hole 83a.

Simultaneously, the first and second flap valve A, the B that have first and

second actuators

54,84 form in first and

second pistons

53,83, and the opening and closing the one the second oil footpaths, increase or reduce in

chamber

21a, 21b about in the of first and second with rising and decline according to first and

second pistons

53,83, reach the oily flow that flows mutually among 23a, the 23b, thereby control the rising and the decrease speed of first and

second pistons

53,83.

The diameter of first and

second valve actuators

54,84 is bigger than the first and second through

hole

53b, 83b's, and compares the slightly little of the first and second center through

hole

53a, 83a, and comprises little center through

hole

54a, 84a so that oil can pass through.

In addition, a plurality of oil grooves 52 are along the interior week formation of the through hole 51a of first piston bar 51, so that oil can flow into the 21b lower chambers from 21a upper chamber, its flow is identical by the flow of first valve actuator 54 (as shown in Fig. 3 A) when closing with through hole 51a in the first piston bar 51.

Similarly, a plurality of oil grooves 82 are along the interior week formation of the through hole 81a of second piston rod 81, so that oil can flow into lower chambers 23b from the 23a of upper chamber, its flow is identical by the flow of first valve actuator 54 (as shown in Fig. 3 B) when closing with through hole 81a in second piston rod 81.

Simultaneously, flap valve A and B have round valve actuator, and it is according to the following operation of open and close door action carrying out according to hinge means of the present invention.

At first, when opening, because under the effect of the rising of first piston 53 and the oil that flows through constantly along first oil footpath 53a, the 54a and 51a in first 21a of upper chamber, first valve actuator 54 is done descending motion in connection holes 53b; Simultaneously when Jiang Men opens, because under the effect of the decline of second piston 83 and the oil that flows through constantly along first oil footpath 83a, the 84a and 81a in the second lower chambers 23b, second valve actuator 84 is done ascending motion in connection holes 83b.

In this process, the first center through hole 53a that flows through of the oil among first 21a of upper chamber.Then, oil flow through part and small through hole 54a between first valve actuator, 54 neighborings and the connection holes 53b inner rim flow out via triton hole 51a then.Then, when first valve actuator 54 was closed triton hole 51a, oil flowed to the first lower chambers 21b via a plurality of oil footpath grooves 52 and small through hole 54a constantly, and its flow is equivalent to the first oily flow.

Simultaneously, the second center through hole 83a that flows through of the oil among the second lower chambers 23b.Then, the oil part between second valve actuator, 84 neighborings and the connection holes 83b inner rim of flowing through, through small through hole 84a, and Via through hole 81a flows out.Then, when second valve actuator 84 was closed triton hole 81a, oil flowed to second 23a of upper chamber from a plurality of oil footpath grooves 82 and small through hole 54a constantly, and its flow is equivalent to the first oily flow.

Like this, the oily flow when opening the door will become greatly, and the decrease speed of the rate of climb of first piston 53 and second piston 83 also can become greatly, thereby makes when opening the door the velocity of rotation of door very fast.

Conversely, at closing time, because the effect of the oil that flows through constantly along first oil footpath 53a, the 54a and 51a according to the decline of first piston 53 and in the first lower chambers 21b, first valve actuator 54 is done ascending motion in connection holes 53b.At this moment, the upper surface of first valve actuator 54 is closed the first center through hole 53a in the first piston 53.Then, the oil path that flows out to first 21a of upper chamber just only limits to small through hole 54a.Therefore, You flow (the second oily flow) is little more a lot of than the first oily flow.Thereby the situation when opening the door, the oily flow of this moment is greatly reduced, and has reduced the rate of climb of first piston 53.Therefore first valve actuator 54 has played the slack-off effect of velocity of rotation that makes door.

Simultaneously, by the effect of the oil that flows constantly along first oil footpath 83a, the 84a and 81a according to the decline of first piston 53 and in second 23a of upper chamber, second valve actuator 84 is done descending motion in connection holes 83b.At this moment, the soffit of second valve actuator 84 is closed the second center through hole 83a in second piston 83.Then, the oil path that flows out to the second lower chambers 23b just only limits to small through hole 84a.At this moment You flow (the second oily flow) is little more a lot of than the first oily flow.Thereby the situation when opening the door, the oily flow of this moment is greatly reduced, and has reduced the speed of the decline of second piston 83.Second valve actuator 84 like this has just played the slack-off effect of velocity of rotation that makes door.

Simultaneously, first and second returning

springs

111 and 113 are placed in the upside of first 21a of upper chamber and the downside of the second lower chambers 23b, with difference resiliency supported first and

second pistons

53,83.

First and second returning

springs

111 and 113 are compressed when opening the door, and the restoring force that makes first and

second pistons

53,83 be returned to initial position is provided thus.

Reference numeral 131,132,133,134,135 in the accompanying drawing and 136 representatives prevent the O type ring that oil leaks.

Fig. 4 A and 4B are the enlarged drawings of another example of flap valve shown in presentation graphs 3A, Fig. 3 B, and wherein flap valve C and D have the ball valve actuator respectively.The flow path of oil is represented in double dot dash line in Fig. 4 A and Fig. 4 B.

As mentioned above, first and

second valve actuators

54,84 among Fig. 3 A, the 3B were described with circular profile, and they also can be the ball valve actuators obviously.As shown in Fig. 4 A, this hinge means comprises a ball-type first valve actuator 154, and its diameter is greater than first center through hole 53a in the first piston and the triton hole 51a in the piston rod.When descending according to first piston 53, when first valve actuator 154 is closed the first center through hole 53a in the first piston, the first center through hole 53a inner periphery at first piston 53 is provided with oil groove 55, so that oil flows to the 21a of upper chamber from the lower chambers 21b of first chamber, thereby increase and decrease the flow of oil as the collar plate shape valve actuator.

Similarly, as shown in Fig. 4 B, hinge means comprises a ball-type second valve actuator 184, and its diameter is greater than second center through hole 83a in second piston and the triton hole 81a in second piston rod.When descending according to second piston 83, when second valve actuator 184 is closed the second center through hole 83a in second piston, the second center through hole 83a inner periphery at second piston 83 is provided with oil groove 85, so that oil flows to lower chambers 23b from the 23a of upper chamber of second chamber, thereby increase and decrease the flow of oil as the collar plate shape valve actuator.

With reference to Fig. 2 A and Fig. 2 B rising and decline guide structure according to piston of the present invention are described below.

At first, the first and second lifting bullport 34a in

first camshaft

30,34b comprises that first " a " and second portion " b " are to " d ", in first " a ", first pilot pin 41 is directed rising and descending with the open angle of guiding piston according to door, as shown in Fig. 2 B, promptly, first " a " is applicable to 0 ° to 15 ° of open angle, and at second portion " b " to " d ", first guiding tube 21 is left-right rotation under according to the situation of the camshaft fixing means of the rotation of door only, and first piston 53 is not done rising and down maneuver,, is applicable to first pilot pin of 15 ° to 160 ° of open angles that is.

Here, the first and

second lifting bullport

34a, 34b are formed the end that makes its each end be open into cylinder part 33.Therefore, ignored pattern corresponding to second portion " b " to " d ".Like this, second portion " b " to " d " is just set 0 the part that stops for as cam angle degree, and wherein first guiding tube 21 is not done under the situation of down maneuver into the left-right rotation along with the rotation of door at first pilot pin 41.Here the first and

second lifting bullport

34a, 34b are configured to the length corresponding to first " a ".

Similarly, the first and

second lifting bullport

64a, 64b in second camshaft 60 comprises that according to the door opening angle four parts " a " arrive " d ", as shown in Fig. 2 B, promptly, first " a " is applicable to 0 ° to 15 ° of open angle, and second portion " b " is applicable to 15 ° to 90 ° of open angles, and third part " c " is applicable to 90 ° to 130 ° of open angles, and the 4th part " d " is applicable to 130 ° to 160 ° of open angles.

In the first " a ", first and

second pistons

53,83 are side by side operated, hydraulic circuit makes door go up a latch of installing to have closing force, and door is gone up the latch installed and just can be made when returning automatically and locking device link (referring to Fig. 5 E) like this.

In this case, the minimizing of the power of closing that causes by the loss of proportional restoring force in resistance in the hydraulic circuit and the returning spring 111,113, can replenish by the rising efficient that improves piston, wherein the cam angle degree of lifting

bullport

34a, 34b is α; 64a and 64b are set in 45 ° to 65 ° the scope, and angle beta than second portion " b " is big comparatively speaking for it.

The result is that although use is that compression spring rather than torsion spring are used as returning spring execution pass door operation automatically, door can be got back to initial position fully, that is, be fully closed.

In the second portion " b ", only have second piston 83 to operate under so a kind of state, that is, when door returned automatically, first piston 53 stopped at subsequently under the hydraulic circuit that is described with reference to Fig. 5 C.In this case, when door is opened, when stopping, first piston 53 only has by second piston 83 of second returning spring, 113 resiliency supported to be in running status.

Correspondingly, Men opening force and 0 ° of open angle to 160 (in this state, door is opened fully in the prior art) scope inside door are proportional corresponding the growths.User's also proportional increase of required power of opening the door like this along with the increase of door open angle (that is, from second portion).Yet in the present invention,, also need to be similar to the power of opening the door in the conventional art in order to keep the restoring force in the first " a ".But in second portion " b ", first returning spring 111 no longer needs compression, and only need compress second returning spring 113.Therefore, than first " a ", the required power of opening the door has just reduced a lot, thereby a heavy type or large-scale door can be opened easily.

Simultaneously, in second portion " b ", the cam angle degree β of the third and

fourth lifting bullport

64a, 64b is set in 10 ° to the 45 ° scopes, this angle [alpha] than first " a " wants littler relatively, thereby suitably improved the rotational efficienty of camshaft 30 when opening the door and 60, and compensated the part that increases in the opening force of proportional variation thus along with open angle.

In the third part " c " of the state that first and

second pistons

53,83 all stop, the cam angle degree of third part " c " is set to 0, and therefore becoming one stops part, and this moment, return course was ended by returning spring 11 3 automatically.In third part " c ", the opening angle of door remains unchanged, and the restoring force in the returning spring 113 is a maximum value.

The 4th part " d " upwards forms from third part " c ", and is that a stopping power strengthens part, and pilot pin 43 does not move owing to the effect of hook therein.In this case, the 4th part " d " can be as required and is to extend in 130 ° to the 180 ° scopes at the open angle of door.

Simultaneously, when pilot pin 43 is risen by repulsion effect in the compressed returning spring 113, the oil pressure ratio returning spring 113 on second piston, 83 tops is big at the elastic force of the confine that second piston 83 can rise therein, and therefore, spring 83 can opposite direction descend suddenly.

Owing to proceed to the irregular movement of the initial time of second portion " b " at pilot pin 43 from third part " c ", pilot pin 43 can produce internal noise and loss inner members.For avoiding occurring this situation, preferably, curved surface is partly made in the boundary between the first cam support section 644 and the second cam support section 645 among the third and fourth lifting bullport 64a, the 64b.

Similarly, separated by a distance with respect to the 3rd lifting bullport 64a, the first cam support component part 644 also has relative curved surface respectively with the second cam support section 645.

To the complete operation that large-scale heavy type according to the present invention is returned hinge means automatically be described referring to Fig. 5 A to 5E below.

Fig. 5 A is the sectional drawing of piston and return speed adjuster, and shows initial position, and this moment, first and second pistons laid respectively at top dead (dead center) and bottom dead center.Fig. 5 B represented according to the opening of door, the opening angle of door changes to 15 ° process from 0 °, and the oil stream the when piston in first and second piston units rises respectively and descends.Oil stream when Fig. 5 C has represented that when first piston stops second piston descends, the angle that open the door this moment is between 15 ° to 90 °.Oil stream when Fig. 5 D has represented that under the state that first piston stops second piston rises, close according to door this moment, the opening angle of door is in from 90 ° to 15 °.Fig. 5 E has represented the oil stream when first and second pistons are side by side done rising and descended, and this moment, the open angle of closing door according to door was changed to 0 ° from 15 °.Fig. 5 F is the sectional drawing of piston and return speed adjuster, and it turns back to initial position, and this moment, first and second pistons laid respectively at top dead and bottom dead center, and the opening angle of door becomes 0 ° according to closing of door.

Automatically return under the situation of hinge means in the large-scale heavy type of first embodiment of the invention, when opening when the closed condition shown in Men Congru Fig. 5 A, the hydraulic circuit as shown in Fig. 5 B is set up.

That is, the large-scale heavy type in first embodiment of the invention is returned under the situation of hinge means 100 automatically, when opening the door, outside commentaries on classics power be passed on first and

second camshafts

30,60 the

axle

31,61 on.The operation of its inner member is as described below.

When the user opened the door of the initial closed state that is in shown in Fig. 5 A, the moment of torsion of left hand helix direction was passed to first guiding tube 21.Therefore, the pilot pin 41 that two ends are inserted among the first and

second lifting bullport

34a, 34b and a pair of vertical guiding groove 22a, the 22b that is formed at first guiding tube 21 rotates along with the rotation of first guiding tube 21, and the first and

second lifting bullport

34a, 34b in first camshaft 30 and move up.

Simultaneously, the moment of torsion of left hand helix direction can pass to second guiding tube 23, and this is the same with situation on first camshaft.Therefore, the pilot pin 43 that two ends are inserted among the third and

fourth lifting bullport

64a, 64b and a pair of vertical guiding groove 24a, the 24b that is formed at second guiding tube 23 rotates along with the rotation of second guiding tube 23, and the third and

fourth lifting bullport

64a, 64b in second camshaft 60 and move down.

In the case, as shown in Fig. 5 B, the power that trends towards up and down can impose on first and

second pistons

53,83 respectively, and they move with a pair of

pilot pin

41,43 and a pair of first and second piston rods 51,81 (to mutual direction motion away from the other side).

Therefore, when first valve actuator 54 is opened, be positioned at the oil of first piston 53 upsides, promptly be positioned at the oily setting in motion of the second lower chambers 23b.Therefore, the oil second oil footpath 53a that can flow through, 54a and 51a then through the neighboring of first valve actuator 54 and the zone between the pothole 53b inner rim, and flow to the downside of first piston 53, i.e. the first lower chambers 21b at an easy rate.

Simultaneously, when second valve actuator 84 is opened, be positioned at the oil of second piston, 83 downsides, promptly be positioned at the oily setting in motion of the second lower chambers 23b.Therefore, the oil second oil footpath 83a that can flow through, 84a and 81a then through the neighboring of second valve actuator 84 and the zone between the pothole 83b inner rim, and flow into the upside of second piston 83, i.e. second 23a of upper chamber.

Like this, first pilot pin 41 promptly in the operable state of the first and

second lifting bullport

34a, 34b (as shown in Fig. 2 B), moves only at first " a ", thus first piston 53 compression reaction springs 111 and do vertical motion.Simultaneously, second pilot pin 43 in first and second parts " a ", " b ", promptly in the operable state of the third and

fourth lifting bullport

64a, 64b, moves constantly, thus second piston, 83 compression reaction springs 113 and do down maneuver.

In addition, stop at first pilot pin 41, second pilot pin 43 enters third part " c ", and is subject to first brake 642 and under the state of motion, second camshaft 60 continues to rotate (shown in Fig. 5 C) in the third part " c " of the third and fourth lifting bullport 64a, 64b.Like this, as shown in Fig. 5 C, second piston 83 just maintains the state that stops, and this moment, second piston 83 was in the position of bottom dead center.That is to say that door temporarily is in halted state (referring to Fig. 5 D).

Simultaneously, close door at 90 ° with interior open angle, or when the open angle open and close door that is lower than 90 °, when door is closed, can carry out automatic return according to hinge means of the present invention as the user.

When the opening angle of door is 90 °, that is to say that door is in the state that stops, if the user rotates this door, the external force of then very little right-handed helix direction is applied on second guiding tube 23, and second pilot pin 43 can pass first brake 642 and cross third part " c ".

Then, second piston 83 is subjected to the repulsion of returning spring 113 by compression and begins to move upward, and also move upward along the second portion " b " of the third and

fourth lifting bullport

64a, 64b with second piston, 83 joining pilot pins 43, that is, rise along one 10 ° to 45 ° inclination angle lifting slowly guiding 641.Like this, second guiding tube 23 together rotates along right-handed helix direction and pilot pin 43, and orders about door and be returned to initial position.

At this moment, not through second oil footpath 81b, 84a and the 83a, flow to the second center through hole 83a by the oil content among second piston, 83, the second 23a of upper chamber of the rising shown in Fig. 5 D from second 23a of upper chamber.

Like this, the second center through hole 83a in second piston 83 is flowed through under the oily closing state of second oil footpath 81a, the 84a and 83a, and second valve actuator 84 places the recess 83b of piston 83 safely.

After this, the second oil footpath is isolated by second valve actuator 84, and the oil on such second piston 83 tops only flows into the second lower chambers 23b via the through hole 84a in second valve actuator 84.The such second oily flow just reduces significantly, and when opening the door, second piston 83 is just to rise lentamente than the first slow-footed second speed like this.

In such cases, the pilot pin 43 that links with second piston 83 rises along the second portion " b " of lifting

bullport

34a, 34b, that is, rise along inclination angle lifting slowly guiding 641.

Second rate of climb slowly of second piston 83 is held, and arrives 15 ° up to the open angle of door, thereby makes the user avoid door to close suddenly and the security incident that causes or use inconvenience.

After this, when the open angle of door surpasses 15 ° (as shown in Fig. 5 E), the first piston 53 that together stops with lasting second piston 83 that rises to top dead begins to descend.That is to say, rise and descend along lifting guiding 641 with 53,83 joining

pilot pin

41,43 beginnings of first and second pistons respectively, wherein, guiding 641 is set to the inclination angle of the unexpected inclination in the first " a " of lifting

bullport

34a, 34b and 64a, 64b, that is, the inclination angle is 45 ° to 65 °.

At this moment, by the first piston 53 that descends, shown in Fig. 5 E, the oil among the first lower chambers 21b flows to the first center through hole 53a via first oil footpath 51b, the 54b and 53a respectively from first 21a of upper chamber.Like this, the first center through hole 53a in first piston 53 is flowed through under the oily closing state of first oil footpath 51a, the 54a and 53a, and first valve actuator 54 just places the recess 53b of piston 53 safely, and has therefore closed the first center through hole 53a.

Like this, the oil of first piston 53 bottoms just only flows into first 21a of upper chamber via the through hole 54a in first valve actuator 54.So oily flow just reduces significantly, and therefore when opening the door, first piston 53 is to descend lentamente than the first slow-footed second speed.

Simultaneously, when the opening angle of door is in 15 ° to the 0 ° scopes, be in 90 ° to 15 ° scopes at open angle in the same mode hydraulic circuit is set.Yet it is big relatively that the inclination angle of lifting guide 641 is set than second portion " b ".As a result, the restoring force of first and second returning springs 111,113 has reduced, but the frictional resistance of lifting guide 641 has also reduced.So being accelerated respectively, the rate of climb of first and

second pistons

53,83 and decrease speed be third speed.

Further, the restoring force of first returning spring 111 set than the damping force of first flap valve " A " big in, the restoring force of first returning spring 111 can be added on second returning spring 113, and in the end closes the door and constantly act on out.

Like this, door just is back to initial position and is placed in lock-out state by door bolt.Equally, first and

second pistons

53,83 also are back to initial position shown in Fig. 5 F.

As mentioned above, in hinge means according to the present invention, cam angle degree with respect to lifting guiding 641 among lifting bullport 34a, the 34b (and 64a, 64b) is suitably set, reducing frictional resistance, and increase the damping force of additional hydraulic circuit and the restoring force of first returning spring 111 (it is only enabled in the last moment of returning door).Therefore, although the compression spring is used as first and second returning springs, in the process of carrying out the automatic return of large-scale heavy door, close at Jiang Men under the situation of initial position, the restoring force in the returning spring is lowered.Thereby can solve the problem that can't close fully of door according to hinge means of the present invention.

Have above-mentioned configuration, can not only be used for when closing large-scale heavy door keeping restoring force according to hinge means of the present invention, and can be during greater than 15 ° at the opening angle of door, make the required force rate of opening the door of user when the opening angle of door is in 0 ° to 15 °, reduce half, thereby make the user open large-scale heavy door with less power like a cork.

And, the restoring force by additional returning spring, the oil footpath control of hydraulic circuit and change frictional resistance, the restoring force when the present invention can also control the speed that automatically replies and execution and automatically replies operation by changing lifting through hole cam angle.

Fig. 6 is the fragmentary cross-sectional view of elastic force setter (setter) that is used for adjusting the elastic force of returning spring in the seal cover shown in Figure 1.

Simultaneously, the hinge means of first embodiment of the invention also comprise a kind of by the elastic force adjustment of setting each spring open the door, the structure of door closing force, as shown in Figure 6.

That is, in first and second seal covers 91,95 shown in Fig. 1 specific elastic force setter is installed.In Fig. 6, the elastic force setter is installed in second seal cover 95.

At first, in the middle part of second seal cover 95, form Bolt Connection groove 95b and the slide opening 95c that passes second seal cover 95, they have step on the axis of unanimity.Equally, the head 951 of thrust bolt 950 threadably is connected on the helical connection slot 95b, and will extends the parts (body) 952 that ground constitutes at head 951 1 ends and be slidably inserted into slide opening 95c.

Further, on 951 1 surfaces of head of thrust bolt 950, be formed with and turn round the groove (not shown), therefore can use instrument to make it to rotate as spanner and so on.

In addition, between second sealing cap 95 and second returning spring 113 platen 960 is set, it can be used for along the interior Zhou Shangsheng of second guiding tube 23 second returning spring 113 is exerted pressure by thrust bolt 950.The diameter of this platen is big than second returning spring 113 preferably.

Like this, thus increase at the elastic force that has improved second returning spring 113 open the door, door closing force, and rotate under the situation of thrust bolt 951, head 951 advances to the inboard of hinge means along helical connection slot 95b.A surface of parts 952 promotion platens 960, and so compression reaction spring 113 then.

The elastic force of returning spring 113 increases with the increase of compression distance, and the final power of opening the door, closing the door that increases.Conversely, when thrust bolt 950 rotation advanced to the outside of hinge means, the elastic force in the returning spring 113 will reduce, and therefore reduced the power of opening the door, closing the door.Therefore, just can control the intensity of force that opens the door, closes the door by adjusting thrust bolt 950.

Fig. 7 is that second embodiment of the invention large-scale heavy type is returned sectional drawing hinge means, alongst automatically.

Some is similar in overall structure and operation according to the hinge means of second embodiment of the invention and first embodiment.Hinge means according to first embodiment of the invention is included in the hydraulic circuit that forms in first and

second guiding tubes

21,23 that are located opposite from the central body 11.Yet, in hinge means according to second embodiment of the invention, different with in first embodiment, central body 210 ' is relative with 223 longer than the parts up and down 221 shown in Fig. 4.In addition, the inboard central authorities of central body 210 ' are formed with spacer assembly 211, the two ends of central body 210 ' connect first and second seal covers 293,297 respectively, form two confining liquid hydraulic circuits thus in central body 210 ', and this point is different with first embodiment of the invention.

In addition, in first embodiment of the present invention,

camshaft

30 and 60 is in fixing state respectively.And in second embodiment of the invention, central body 210 ' is fixed together with doorframe through first hinge 210, and first and second camshafts 230,260 support to door by second hinge 220, and the two ends of second hinge 220 are respectively fixed to upper and lower parts 221,223.Thereby first and second camshafts 230,260 are supported by upper and lower parts 221,223, therefore can rotate with the rotation of door, and this point is different with first embodiment.

In addition, the axle 231 and 261 of first and second camshafts 230,260 forms by the fixing method of key (key), that is, axle 231 and 261 is inserted into the inboard of upper and lower parts 221,223 respectively and fixes by key 299a and 299b.Yet the part that axle 231,261 inserts upper and lower parts 221,223 forms with polygonal form, and the inner rim of upper and lower parts 221,223 is fixed with the form corresponding to its inner circumference.In addition, in second embodiment, also can use obviously spring catch vertically insert the axle fixed form, as employed in the first embodiment.

As first embodiment of the present invention, in the hinge means 200 according to second embodiment of the invention, the length of the cam diagram of first and second camshafts 230,260 also has nothing in common with each other.So when the opening angle of door was 0 ° to 15 °, first and second returning springs 212,214 can be configured to work simultaneously.Like this, pair of pistons 253 and 283 rises simultaneously and descends, thereby makes and to move along with the lifting of first and second pilot pins 241,243.

When the result is closed at door, the power of not only closing the door is kept by the restoring force of first and second returning springs 212,214, and be lowered to the power that the lock that opens the door needs half (comparing when being in 0 ° to 15 °), thereby make the user open large-scale heavy door with less power like a cork with the opening angle of door in the opening angle of the door power of opening the door during greater than 15 °.

In Fig. 7, drawing reference numeral 233 and 263 is represented the cylinder part in the camshaft respectively.

Fig. 8 returns hinge means sectional drawing alongst automatically according to the large-scale heavy type of the 3rd embodiment of the present invention.

The same with the present invention's first and second embodiments, according to the hinge means 300 use pair of cams axles of third embodiment of the invention.Equally, its overall structure and operation also are similar.

First and second embodiments all comprise the hydraulic circuit of two sealings, but the 3rd embodiment is to adopt an oil pressure loop, and piston 383 is divided into upper and lower chamber 323a, 323b.In addition,

oil footpath

383a, 384a and 381a lead to upper and

lower chamber

323a and 323b respectively.

That is, first piston 353 does not have the oil footpath and is used to control the valve actuator in oil footpath, and has played the effect of piston under the state that returning spring 311 supports.

In Fig. 8,

Reference numeral

310 and 320 is represented first and second hinges respectively, Reference numeral 310 ', 321 and 323 represent central unit respectively, upper-part and lower member, Reference numeral 330,360 represent first and second camshafts respectively, Reference numeral 331,361 represent first and second camshafts respectively, Reference numeral 333,336 represent the cylinder part of first and second camshafts respectively, Reference numeral 341,343 represent first and second pilot pins respectively, Reference numeral 399a, 399b is used for axle 331,361 are fixed in the key on upper-part 321 and the lower member 323.

As the present invention's first and second embodiments, in the hinge means 300 in the 3rd embodiment according to the present invention, the length of the cam diagram of first and second camshafts 330,360 has nothing in common with each other.When the opening angle of door was in 0 ° to 15 °, pair of pistons 353,383 side by side rose and descends, thereby moved together with the rising and the decline of first and second pilot pins 341,343.As a result, returning spring 311 is by upper and lower compression.

During greater than 15 °, first pilot pin 341 and piston 353 no longer descend, and keep the position at their places again at the opening angle of door.Returning spring 311 is compressed along with the rising of second piston 383, and second piston 383 is positioned in hydraulic circuit below the returning spring 311.

Simultaneously, at closing time, the restoring force of returning spring 311 only works to the decline of second piston 383 when 15 ° of Men Kaizhi, and the restoring force of returning spring 311 is when returning, work to the rising and the decline of first and second pistons 353,383 during from 15 ° to 0 ° at open angle simultaneously.

Like this, when door is closed, not only can keep the power of closing the door, can also be during greater than 15 ° at the opening angle of door, make the required force rate of opening the door of user when the opening angle of door is in 0 ° to 15 °, reduce half, thereby make the user open large-scale heavy door with less power like a cork.

Simultaneously, even if in first and second embodiments of the present invention, in the 3rd embodiment, in the pair of pistons any one all is designed to not have independent oil footpath and be used to control oil flap valve (being valve actuator) directly, and is designed to the state by the returning spring resiliency supported.In this case, preferably oil should be discharged from the chamber with simple piston.

Similarly, even if in second, third embodiment of the present invention, also can use the ball valve actuator to replace collar plate shape (valve actuator) obviously.

Large-scale heavy hinge means according to the present invention in first to the 3rd embodiment comprises the hydraulic circuit with notch, thereby can provide constant damping force at flap valve at closing time.Make door have constant closing velocity thus.

Yet, except being placed in upside and hydraulic circuit in predetermined open angle work only, the hydraulic control bar is inserted in down in the oil footpath that forms in the piston rod in the hydraulic circuit, thereby can and descend (promptly according to the rising of piston to the flow of oil, the rate of climb of piston) changes control, and therefore make when keeping door closing force, to control the speed of closing the door multistagely.

In this case, following hydraulic circuit can be a single-loop system.Perhaps, following Hydraulic Circuit Design is become to have the hydraulic circuit of a plurality of multistage connections according to required damping force.To describe the 4th embodiment below, it adopts a kind of like this structure, promptly descends hydraulic circuit to be designed to biliquid hydraulic circuit system.

Fig. 9 is the length direction sectional drawing that returns hinge means according to the large-scale heavy type of the 4th embodiment of the present invention automatically.Figure 10 A to Figure 10 C is respectively in the 4th embodiment of the present invention, and actuator is done the fragmentary cross-sectional view of oil stream situation when descending when opening the door.Figure 10 D to Figure 10 E is respectively in the 4th embodiment of the present invention, the fragmentary cross-sectional view of actuator oil stream situation when doing vertical motion at closing time.

In following explanation to four embodiment of the invention, as first embodiment of the invention, identical Reference numeral is represented components identical.The description of its details will be omitted.

At first, as shown in Figure 9, comprise according to the hinge means that returns automatically the 4th embodiment of the present invention, that have three groups of hydraulic circuits: central body 11, its periphery is fixed on the central authorities of first hinge 10, as first embodiment; And first and

second guiding tubes

21,23, its periphery be fixed on respectively second hinge 20 on/downside, wherein the first and second vertical guiding grooves and the third and fourth vertical guiding groove form in the relative up and down position of second hinge, 20 inboards.

In this case, preferably, the spacing between first guiding tube 21 and second guiding tube 23 is formed corresponding with the height of central body 11, thereby central body 11 can seamlessly be inserted between first guiding tube 21 and second guiding tube 23.

In addition, first and second seal covers 93,97 link towards an end of central body respectively with in first and

second guiding tubes

21,23, and first and second end caps 91,95 link with the other end of first and

second guiding tubes

21,23 respectively, leak to prevent that first and second guiding tubes, 21, the 23 inboard fry dried food ingredients that inject from giving birth to.

Simultaneously, first and

second camshafts

30,60 are rotated by first and second guiding tubes, 21,23 ordering about relative to external force of generation when door rotates, wherein a pair of axle in first and

second camshafts

30,60 31,61 is fixed by

spring catch

31a, 61a under a kind of like this state respectively and inserts in the central body 11, promptly, a pair of

axle

31,61 is inserted in the central body 11 and toward each other, and first and

second cylinders

33,63 that form from first and second 31,61 expansions respectively can be placed in the inner periphery of first and

second guiding tubes

21,23 respectively with changeing.

At this, in the mode identical with first embodiment of the invention, the first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually, and insert ground formation along the neighboring of first and

second cylinders

33,63 respectively.

Shown in Fig. 2 A, the length of the first and second lifting bullports in first camshaft 30 is less than the third and fourth lifting bullport in second camshaft 60.The end of any one all is the open end until cylinder part 33 in the first and second lifting bullports.In addition, the end of the third and fourth lifting bullport forms in cylinder part 63 and closes in second camshaft 60.

In the present invention, give the credit to the first and second lifting bullport 34a of guiding first piston 53, the special construction of 34b, subsequently the pair of pistons of describing 53,83 was side by side operated in the last moment of the automatic return of door, increase damping force thus significantly and thereby increase the power of closing the door.

Simultaneously, the end of first and second pilot pins 41,43 is connected to the first and second vertical guiding grooves and the third and fourth vertical guiding groove via the first and second lifting bullports and the third and fourth lifting bullport respectively.

The middle body of

second pilot pin

41,43 is bonded on each end of first and

second piston rods

51,81 with being inserted into, and first and second piston rods 51,161 are along

cylinder

33,63 inner peripherys of first and

second camshafts

30,60, with according to the rotation of first and

second camshafts

30,60 and along the mode that the first and second vertical guiding grooves and the third and fourth vertical guiding groove slide rise and descend (referring to first embodiment).

As previously mentioned, the last hydraulic circuit 400a that adopts in the four embodiment of the invention have with first embodiment in identical structure.Yet, identical in the structure that the guiding piston of the following hydraulic circuit 400b that adopts in four embodiment of the invention rises and descends and first embodiment, be different in other structure and first embodiment.

What hereinafter will describe is the configuration structure different with first embodiment of the invention, that is, form two groups of independent hydraulically controlled loops and adjust the piston rate of climb, and thus under the situation that does not increase large-scale door hinge device diameter, supply the structure of required damping force.

At first, in hinge means according to the 4th embodiment of the present invention, the upper end of second piston rod 161 and second pilot pin 43 link, so that change with the rotation of second camshaft 60 jointly, second,

third piston

162a, 162b link with the centre with preset distance and the bottom of second piston rod 161 respectively, isolator 120 is axially movably supporting piston rod 161, and is fixed to second guiding tube 23, and is arranged between second, third piston 162a, the 162b.

Second, third piston 162a, the 162b that link with second piston rod 161 and therewith move are called as actuator 160.

Isolator 200 between the second lower chambers 193a and the 3rd 191b of upper chamber, thereby separate second, third up and down

chamber

191a, 193a; And second,

third piston

162a, 162b are cut apart

chamber

191b, 193b.

Further, the piston rod 161 of actuator 160 comprises: the first oil footpath 168a, be formed at a distance apart from the lower end of piston rod central lower branch, and make oil can flow into the upper and lower part part of each chamber; The second oil footpath 168b is communicated with the first oil footpath 168a and second upper chamber; The 3rd oil footpath 168c is communicated with the first oil footpath 168a and second lower chambers; The 4th oil footpath 168d is communicated with the first oil footpath 168a and the 3rd upper chamber.Oil among such the 3rd lower chambers 193b can flow to second 191b of upper chamber according to the decline of the second piston 162b.

In the case, an end that is used for controlling the hydraulic control bar 145 of oil pressure inserts the first oil footpath 168a, and the other end is fixed to the holder 143 that is supported on second seal cover 95.The calibration bolt 141 that links to each other with the intermediate vertical of second seal cover 95 links with the inboard of holder 143.Like this, the gear of hydraulic control bar 145 (level) is provided with according to the front/rear rotation of calibration bolt 141.Therefore, the flow through oil mass of the first oil footpath 168a can optionally be controlled.Therefore, Men the speed of automatically replying is determined.

In hydraulic control bar 145 according to four embodiment of the invention, the compartment of terrain is disposing the bigger high speed part setter (1-Fast of a pair of oily flow, 2-Fast) the less low speed part setter (1-Slow of 145a, 145c and a pair of oily flow, 2-Slow) 145b, 145d, shown in Figure 10 D and 10E, so that suitably control the biliquid hydraulic circuit.

This is to high speed part setter (1-Fast, 2-Fast) to be configured to diameter be constant for 145a, 145c, thereby can flow through many relatively oil masses, promptly, flap valve E described later, F (referring to Figure 10 A) do not work (being in closed condition), when just door is opened (being that piston is done down maneuver), make an appointment with the oil mass of half to flow through.This diameter to low

speed part setter

145b, 145d is tapered growth from top to bottom, thus when flap valve E, F are in closed condition (, when

piston

162a and 162b do when rising), the flow of oil can change in from 1/2 to 1/80 the scope.

In this case, when

piston

162a and 162b rising, flow into the oil mass of second, third

lower chambers

193a, 193b from the 191a of second, third upper chamber, 191b, in a pair of high

speed part setter

145a, 145c part corresponding to third and

fourth oil footpath

168c, 168d, with a pair of low

speed part setter

145b, 145d compares has significantly increased, thereby door can be returned at a high speed.

In addition, flow into the lifting position of the oil mass of second, third

lower chambers

193a, 193b from the 191a of second, third upper chamber, 191b according to

piston

162a, 162b, in a pair of high

speed part setter

145a, 145c part corresponding to third and

fourth oil footpath

168c, 168d, with a pair of low

speed part setter

145b, 145d compares has significantly increased, thereby the loss that can replenish restoring force in the returning spring 113.

High

speed part setter

145a, 145c and low

speed part setter

145b, 145d determine the length of various piece according to the object that returns hinge means automatically and be applied to, with so that the tapering of definite low

speed part setter

145b, 145d.

For instance, the door (such as a fire exit door) when on fire on the building can be closed, and high

speed part setter

145a, 145c begin to start when the opening angle of door is 30 °.In small-sized door of family expenses or interior door, high-

speed component setter

145a and 145c begin to start when the opening angle of door is 5 °.When being used for the door of rotation up and down such as kraut refrigerator (a kind of storage facilities that is used for storing the traditional food Pickles of fermented food such as Korea S), high-

speed component setter

145a, 145c are optional, because needn't use high-speed component, thereby only need provide low

speed part setter

145b and 145d.

Simultaneously; hinge means according to four embodiment of the invention comprises

overvoltage protection valve

130a and 130b, wherein the first and second

over-voltage protection element

163a, 163b by the first and

second disc spring

164a, 164b elasticity be installed on second,

third piston

162a, 162b below.In this case; be necessary to make the internal diameter of the diameter of the first and second

over-voltage protection element

163a, 163b, to constitute the 8th oil footpath 169d between each and second guiding tube 23 in the first and second

over-voltage protection element

163a, 163b less than second guiding tube 23.In addition, the first and

second disc spring

164a, 164b are supported by first and second locating snap rings (snap ring) 165a, 165b respectively.Like this, the first and

second disc spring

164a, 164b just avoided when overvoltage along piston rod 161 by under push away, thereby

overvoltage protection valve

130a and 130b are stably worked.

Hereinafter the operating condition of

overvoltage protection valve

130a, 130b is elaborated with reference to Fig. 9 and Figure 10 A.

Overvoltage protection valve

130a, 130b do not work with normal speed at closing time the user, and only work when door is promoted by big external force (such as high wind) suddenly.Specifically, when door is opened, when closing, had at least one pair of flap valve E and F and work according to the switch ball among overvoltage protection valve 130a, the 130b 170,171 with normal speed, to close the 6th oil footpath 169b (referring to Figure 10 D).

In the lower end of

piston

162a, 162b,

disc spring

164a and 164b flexibly support

over-voltage protection element

163a and 163b with predetermined pressure.Under the situation of the pressure that produces in the 191a of upper chamber, 191b greater than the elastic force of

disc spring

164a, 164b,

over-voltage protection element

163a and 163b move down under the effect of oil pressure.If

over-voltage protection element

163a, 164b move down; can form the 7th oil footpath 169a between the upper surface of the soffit of

piston

162a, 162b and

over-voltage protection element

163a, 163b; oil among the 191a of upper chamber, the 191b can flow into

lower chambers

193a and 193b from the 7th, the

8th oil footpath

169c, 169d through the 5th oil footpath 169a, thereby has removed overvoltage condition.The result is because the overvoltage among the 191a of upper chamber, the 191b is used for sealing the O type ring of second guiding tube, 23 peripheries and

piston

162a, 162b one is damaged, and perhaps guiding tube is damaged, thus pre-grease proofing leakage.

Yet the pressure that produces in the 191a of upper chamber, 191b is during less than the elastic force among disc spring 164a, the 164b, and according to normally closing of door,

over-voltage protection element

163a and 163b can not move down because of oil pressure.If

over-voltage protection element

163a and 164b do not move down and keep Elastic Contact with the soffit of

piston

162a, 162b, then can not form the 7th oil footpath 169a between the upper surface of the soffit of

piston

162a, 162b and

over-voltage protection element

163a, 163b.

Therefore, the 6th oil footpath 169b is closing along with the effect of switch ball 170,171 at closing time, and the oil among the 191a of upper chamber, the 191b flows into

lower chambers

193a and 193b through first to the 3rd oil footpath 168a-168c like this.And when opening the door, oil flows to 191a of upper chamber and 191b through the 6th oil footpath 169b and flap valve E, F from

lower chambers

193a and 193b.

In this case,

disc spring

164a, 164b should be designed to have suitable coefficient of elasticity, so that over-voltage protection element 153a and 163b can move when overvoltage.

Simultaneously, holding nut 166 is that spiral connects with the end of piston rod 145.Holding nut 166 plays the elastic force that prevents returning spring 113 (its resiliency supported actuator 160) and directly acts on effect on disc spring 164a, the 164b, thereby carries out the function of overvoltage protection in the chamber smoothly.

In four embodiment of the invention as shown in Figure 9, flap valve 631 divides with

piston

162a, 162b to be left, and with arrangement

overvoltage protection valve

130a and 130b (shown in Figure 10 A), and is to be based upon among over-voltage protection element 163a and the 163b.Yet when not using

overvoltage protection valve

130a and 130b, flap valve is to settle according to well known structures, rather than constitutes the 5th oil footpath 169a in

piston

162a, 162b.

In the 4th embodiment, formed the loop chamber of two sealings, constituting two independent hydraulically controlled loops in the longitudinal direction, thereby lack or less damping force in (increase) large-scale door, and reduce a volume of last used hinge means.

With reference to Figure 10 A to 10E the operation of hinge means in the four embodiment of the invention is elaborated below.

Be that when opening the door, following hydraulic circuit 400b starts working under 0 the situation at the opening angle of door, thereby make second,

third piston

162a, 162b be positioned at the top dead of each chamber, shown in Figure 10 A.Be at the open angle of door under 0 ° to 30 ° the situation, second,

third piston

162a, 162b descend, and the first and second flap valve E, F are in the closed condition shown in Figure 10 B.Like this, the oil among lower chambers 193a, the 193b suddenly in the first and second flap valve E, F and piston rod 161 first to fourth oil footpath 168a-168d flow into 191a of second, third upper chamber and 191b.

In addition, be at the open angle of door under 30 ° to 90 ° the situation, oil among second, third lower chambers 193a, the 193b suddenly in the first and second flap valve E, F and piston rod 161 first to fourth oil footpath 168a-168d flow into 191a of second, third upper chamber and 191b, shown in Figure 10 C.

At this, be at the open angle of door under 0 ° to 30 ° the situation, the oil of first to fourth oil footpath 168a-168d is corresponding to high

speed part setter

145a, 145c owing to flow through, compare increase slightly corresponding to the flow of low

speed parts setter

145b, 145d when therefore its flow is in 30 ° to 90 ° with the door opening angle, but its overwhelming majority flows through via the 6th oil footpath 169b, the first and second flap valve E, F and the 5th oil footpath 169a in order.

When opening the door and since last hydraulic circuit 400a according to first embodiment of the invention in the same mode move, for example 5 ° the time, the elastic force in the returning spring 111 stops growth to the opening angle that surpasses a setting when the opening angle of door.Like this, when door is opened above the setting opening angle, can reduce the power of opening the door significantly, so that the user opens heavy large-scale door like a cork.

Simultaneously, at closing time, opening angle at door is in 90 ° under the situation of 30 ° of scopes (shown in Figure 10 D), oil among the 191a of second, third upper chamber, the 191b first to fourth oil footpath 168a-168d in piston rod 161 flows into second, third

lower chambers

193a, 193b with first speed of low speed, and wherein the first and second flap valve E, F are in open mode.

In this case, the oil that flows through first to fourth oil footpath 168a-168d is set to corresponding with low

speed part setter

145b and 145d, and its flow increases progressively, thereby can compensate the loss of restoring force in the returning spring 113.

Thereafter, under the opening angle of door is in situation in 30 ° to 0 ° the scope, shown in Figure 10 E, oil among the 191a of second, third upper chamber, the 191b first to fourth oil footpath 168a-168d in piston rod 161 flows into second, third

lower chambers

193a, 193b, its speed is than the comparatively faster second speed of first speed, and this moment, the first and second flap valve E, F were in open mode.

In this case, the oil that flows through first to fourth oil footpath 168a-168d is set to corresponding with high

speed part setter

145a and 145c, and its flow increases progressively, thereby can compensate the loss of restoring force in the returning spring 113, and increases the required power of closing the door simultaneously.

Thereafter, the opening angle that is lower than a setting at the opening angle of door is for example 15 ° the time, last hydraulic circuit 400a return back to first embodiment in the identical method of operation, thereby make the elastic-restoring force in the returning spring 111 of winning additionally be applied to hydraulic circuit 400a, additionally to increase door closing force.In this case, the restoring force of first returning spring 111 in hydraulic circuit 400a is bigger than the damping force that is formed by flap valve A, thereby increases the required power of closing the door.

And when open angle was in 15 ° to 0 °, the rising of

piston

162a, 162b and decrease speed can guide 641 setting according to the lifting of high inclination-angle, and are accelerated to third speed.Like this, door is returned to initial position and is placed the state of locking by the latch of door.

At first, in the 4th embodiment of the present invention as mentioned above,, the closing velocity of door can be divided multistage ground to be controlled by the shape of assembled hydraulic control lever and the cam diagram of the first and second lifting bullports in the camshaft.

In addition, in hinge means, consider weight that increases door rather than the diameter that increases frame parts, increase at least one hydraulic circuit to replenish not enough damping force according to four embodiment of the invention.Therefore, can apply enough damping forces, with under large-scale situation of heavy type, the rate of climb of

control piston

162a, 162b.

In the 4th embodiment, as mentioned above, adopted the biliquid hydraulic circuit as hydraulic circuit 400b.Yet, according to the required damping force of door determine and and then the increase and decrease hydraulic circuit number also be fine.That is,, can increase and decrease the number of hydraulic circuit easily by the mode of increase and decrease piston and isolator (containing flap valve).

Further, in four embodiment of the invention, the cam diagram of first camshaft 30 can be formed, and makes hydraulic circuit 400a only return the last period at open the door initial period and door and works, and reduces thus and opens the door required power and increase restoring force.Therefore, when opening the door, the part that is compressed in outside the set angle of first returning spring 111 stops, thereby reduces the required power of opening the door.Like this, can easily open large-scale heavy door.When door returned, when the opening angle of door during corresponding to the angle set, the one the second returning springs 111,113 were operated simultaneously.Therefore, increased the power of closing the door, door can be replied fully.

Preferred forms of the present invention

As mentioned above, the present invention's reference specifically preferred embodiment is illustrated.And the present invention is not limited in above-mentioned embodiment, and those of ordinary skill in the art can do various modifications and variations to the present invention under the prerequisite that does not depart from aim of the present invention.Therefore, protection scope of the present invention is not limited to above-mentioned detailed description, and is subject to claim described later and technical purpose of the present invention.

Industrial applications

As mentioned above, can be used for being subjected to the hinge class according to a kind of auto-returned hinge means of the present invention The large-scale heavy door that doorframe supports. In the initial period of opening the door and a last period of returning, a pair of Returning spring operates simultaneously, to keep door closing force. In the other parts of open and close door, only there is one Returning spring work has so just reduced the required power of opening the door, thereby can come with littler power Open heavy large-scale door.

Claims

One kind be used for large-scale heavy door return hinge means automatically, described any one that return automatically in the hinge means and first and second hinges is fixed together, and returning automatically at closing time, the described hinge means that returns automatically comprises:

Central body, an one periphery is fixed on the central authorities of described first hinge;

First and second guiding tubes, its periphery be fixed on respectively described second hinge on/downside, wherein the first and second vertical guiding grooves and the third and fourth vertical guiding groove form in opposed facing position, and first and second chambeies that are filled with oil form therein, keep gap corresponding to the height of described center main part with this;

First and second camshafts are rotated by ordering about relative to external force of being produced in described first and second guiding tubes when door rotates, and wherein first and second fixedly inserted in the described central body and toward each other; First and second cylinders that form from described first and second expansions are rotatably installed on the inner periphery of described first and second guiding tubes respectively; Be formed with the first and second lifting bullports and the third and fourth lifting bullport, the cam diagram that the described first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually along the described first and second cylindrical neighborings with inserting;

First and second pilot pins, two end are connected to the described first and second vertical guiding grooves and the third and fourth vertical guiding groove via the described first and second lifting through holes and the third and fourth lifting through hole respectively;

First and second piston rods, its each end connects with the middle body of described first and second pilot pins respectively with inserting, and the mode to slide according to the rotation of described first and second camshafts and along the described first and second vertical guiding grooves and the third and fourth vertical guiding groove, rise and descend along the described first and second cylindrical inner peripherys of described first and second camshafts; Be formed with the first and second triton holes of vertical connection neighboring respectively at the other end of described first and second piston rods;

First and second pistons, its each side central authorities have first and second connection holes of the described other end that is connected to described first and second piston rods respectively, be formed with first and second center through hole that are communicated with described first and second connection holes respectively at its opposite side, its excircle is slidably disposed on respectively on the inner surface of described first and second guiding grooves, and first and second chambers are divided into top and the bottom respectively;

First and second flap valve, it is placed in first and second pistons, in order to increasing and to reduce the oil body flow that in the chamber up and down of described first and second chambers, flows mutually according to the rising of described first and second pistons and decline, thereby control the rising/decrease speed of described first and second pistons;

First and second sealing caps, on itself and described first and second guiding grooves/the lower end sealed attachment, thus in described first and second guiding grooves, form independently hydraulic circuit respectively; And

First and second elastomeric elements, it is placed in described first top and described second bottom respectively, flexibly to support described first and second pistons; And provide respectively and make described first and second pistons be returned to the restoring force of initial position returning Men Shineng,

Wherein, the described first and second lifting bullports of described first and second camshafts and the third and fourth lifting bullport are with relative direction setting, and a pair of cam diagram length in the described first and second lifting bullports and the third and fourth lifting bullport is longer than another right cam diagram length.
2. as claimed in claim 1 be used for large-scale heavy door return hinge means automatically, wherein, the described first and second lifting through holes only comprise that an open angle is 0 °-15 ° the first lifting part, and described third and fourth through hole comprises that an open angle is the second lifting part that 0 °-15 ° first lifting part and door open angle are 15 °-90 °.
3. as claimed in claim 1 be used for large-scale heavy door return hinge means automatically, wherein, described first and second flap valve use the valve actuator of circle or ball-type.
One kind be used for large-scale heavy door return hinge means automatically, described any one that return automatically in hinge dress and first and second hinges fixed, and can return automatically at closing time, the described hinge means that returns automatically comprises:

Central body, an one periphery is fixed on the central authorities of described first hinge, the inboard of described central body is divided into first and second chambers by isolated part, from the inside relative position of described first and second chambers of described central body, form the first and second vertical guiding grooves and the third and fourth vertical guiding groove respectively up and down;

First and second fixed parts, its each a side link with the side of the top and the bottom of described second hinge respectively, and remain in the state that makes the distance that described central body can insert;

First and second camshafts, ordering about relative to external force of being produced in described first and second fixed parts when door rotates rotated, wherein first and second fixedly inserted in described first and second fixed parts, are arranged on the inner rim of described first and second chambers of described central body respectively rotationally with described first and second first and second cylinders that removably connect; Be formed with the first and second lifting bullports and the third and fourth lifting bullport, the cam diagram that the described first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually along the described first and second cylindrical neighborings with inserting;

First and second pilot pins, two end are connected to the described first and second vertical guiding grooves and the third and fourth vertical guiding groove via the described first and second lifting through holes and the third and fourth lifting through hole respectively;

First and second piston rods, its each upper end is connected by described first and second pilot pins, and the mode to slide according to the rotation of described first and second camshafts and along the described first and second vertical guiding grooves and the third and fourth vertical guiding groove, rise and descend along the described first and second cylindrical inner peripherys of described first and second camshafts; Be formed with the first and second triton holes of its neighboring of vertical connection respectively at the other end of described first and second piston rods;

First and second pistons, its each side central authorities have first and second connection holes of the described other end that is connected to described first and second piston rods respectively, be formed with first and second center through hole that are communicated with described first and second connection holes respectively at its opposite side, its excircle is slidably disposed on respectively on the inner surface of described first and second guiding grooves, and first and second chambers are divided into top and the bottom respectively;

First and second flap valve, it is placed in first and second pistons, in order to increasing and to reduce the oil body flow that in the chamber up and down of described first and second chambers, flows mutually according to the rising of described first and second pistons and decline, thereby control the rising/decrease speed of described first and second pistons;

First and second sealing caps, on itself and described first and second guiding grooves/the lower end sealed attachment, thus in described first and second guiding grooves, form independently hydraulic circuit respectively; And

First and second elastomeric elements, it is placed in the bottom and described second top in described first chamber respectively, flexibly to support described first and second pistons; And provide respectively and make described first and second pistons be returned to the restoring force of initial position returning Men Shineng,

Wherein, the described first and second lifting bullports of described first and second camshafts and the third and fourth lifting bullport are with relative direction setting, and a pair of cam diagram length in the described first and second lifting bullports and the third and fourth lifting bullport is longer than another right cam diagram length.
One kind be used for large-scale heavy door return hinge means automatically, described any one that return the hinge means and first and second hinges automatically fixed, and can return automatically at closing time, the described hinge means that returns automatically comprises:

Central body, an one periphery is fixed on the central authorities of described first hinge, in the relative position of the inner rim of described central body, form the first and second vertical guiding grooves and the third and fourth vertical guiding groove respectively up and down, have chamber in the inboard of described central body;

First and second fixed parts, its each a side link with the side of the top and the bottom of described second hinge respectively, and remain in the state that makes the distance that described central body can insert;

First and second camshafts, ordering about relative to external force of being produced in described first and second fixed parts when door rotates rotated, wherein first and second fixedly inserted in described first and second fixed parts, are arranged on the inner rim of described first and second chambers of described central body respectively rotationally with described first and second first and second cylinders that removably connect; Be formed with the first and second lifting bullports and the third and fourth lifting bullport, the cam diagram that the described first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually along the described first and second cylindrical neighborings with inserting;

First and second pilot pins, two end are connected to the described first and second vertical guiding grooves and the third and fourth vertical guiding groove via the described first and second lifting through holes and the third and fourth lifting through hole respectively;

The first piston bar, the one end is connected by described first pilot pin, and the mode to slide according to the rotation of described first camshaft and along the described first and second vertical guiding grooves, rises and descends along the cylindrical inner periphery of described first camshaft;

First piston form on the other end expansion ground of described first piston bar, and its excircle places the inner periphery of described central body slidably;

Second piston rod, the mid portion of one end and described second pilot pin is linked together, and the mode to slide according to the rotation of described first and second camshafts and along the described third and fourth vertical guiding groove, rise and descend along the cylindrical inner periphery of described second camshaft; Be not formed with the triton hole of its neighboring of vertical connection at the other end of described second piston rod;

Second piston, the central authorities of one side have the connection holes that connects with the other end of described second piston rod, have the center through hole that is communicated with above-mentioned connection holes at its opposite side, the excircle of described second piston slides at the inner periphery of the chamber of described central body, and described chamber is divided into top and the bottom;

Flap valve, it is placed in described second piston, in order to increasing and to reduce the oil body flow that flows mutually according to the rising of described second piston and decline in described chamber up and down, thereby controls the rising/decrease speed of described second piston;

First and second sealing caps, its respectively with described central body on/lower end sealing connection; And

Elastomeric element, it is installed in the described upper chamber, flexibly supporting described first and second pistons, and and provide respectively and make described first and second pistons be returned to the restoring force of initial position returning Men Shineng,

Wherein, the described first and second lifting bullports of described first and second camshafts and the third and fourth lifting bullport are with relative direction setting, and a pair of cam diagram length in the described first and second lifting bullports and the third and fourth lifting bullport is longer than another right cam diagram length.
One kind be used for large-scale heavy door return hinge means automatically, described any one that return the hinge means and first and second hinges automatically fixed, and can return automatically at closing time, the described hinge means that returns automatically comprises:

First and second;

Central body, an one periphery is fixed on the centre of described first hinge, and described first and second insertions are wherein and be in relative position;

First and second guiding tubes, its periphery be fixed on respectively described second hinge on/downside, first and second chambeies that are filled with oil form therein, keep gap corresponding to the height of described center main part with this;

First and second lifting units, it lays respectively on the inner periphery of described first and second guiding tubes, and when door rotated, the torque actuated by producing in the described axle or first and second guiding tubes made first and second pilot pins move up and down;

First and second hydraulic circuits, it comprises first and second piston rods, described first and second pilot pins in the top and the bottom of described first and second piston rods and described first and second lifting units link, and carry out elevating movement according to the rising and the decline of described first and second pilot pins; First and second pistons, itself and described first and second piston rods link, and the state in being inserted in described first and second guiding tubes is separated into chamber up and down to first and second chambers respectively, when opening the door, elevating movement according to described piston in described first and second hydraulic circuits has the first oily flow, and, have the second oily flow littler than the described first oily flow at closing time;

First and second sealing caps, on itself and described first and second guiding tubes/the lower end sealed attachment, thus in described first and second guiding tubes, form independently hydraulic circuit respectively; And

First and second elastomeric elements, it is placed in the top in described first chamber and the bottom in described second chamber respectively, and flexibly supporting described first and second pistons, and you can well imagine energy supply in the time-division of opening the door and enough make first and second pistons be returned to the power of initial position,

Wherein, any one in described first and second lifting units only operated in predetermined door open angle scope.
7. as claimed in claim 6 be used for large-scale heavy door return hinge means automatically, wherein, described first and second lifting units comprise:

The first and second vertical guiding grooves and the third and fourth vertical guiding groove form up and down in the inboard relative position of described first and second guiding tubes;

First and second camshafts, it is driven by the relative external force that produces in described first and second guiding tubes when door rotates and rotates, wherein first and second described central bodies of fixing insertion also toward each other, first and second cylinders that are formed into from described first and second expansions are placed in the inner periphery of described first and second guiding tubes respectively rotationally, be formed with the first and second lifting bullports and the third and fourth lifting bullport, the cam diagram that the described first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually along the described first and second cylindrical neighborings with inserting;

First and second pilot pins, two end are connected to the described first and second vertical guiding grooves and the third and fourth vertical guiding groove via the described first and second lifting through holes and the third and fourth lifting through hole respectively;

Wherein, the described first and second lifting bullports of described first and second camshafts and the third and fourth lifting bullport are with relative direction setting, and a pair of cam diagram length in the described first and second lifting bullports and the third and fourth lifting bullport is longer than another right cam diagram length.
One kind be used for large-scale heavy door return hinge means automatically, described any one that return the hinge means and first and second hinges automatically fixed, and can return automatically at closing time, the described hinge means that returns automatically comprises:

First and second;

Central body, an one periphery is fixed on the centre of described first hinge, and first and second are inserted in the described central bodies and are in relative position;

First and second guiding tubes, its periphery be fixed on respectively described second hinge on/downside, and first and second chambeies that are filled with oil form therein, keep gap corresponding to the height of described center main part with this;

First and second lifting units, it lays respectively on the inner periphery of described first and second guiding tubes, and when door rotated, the torque actuated by producing in the described axle or first and second guiding tubes made first and second pilot pins move up and down;

First hydraulic circuit, it comprises the first piston bar, changes the bottom of piston rod and first pilot pin in described first lifting unit and links, and carry out elevating movement according to the rising and the decline of described first pilot pin; And first piston, itself and described first piston bar link and the state in being inserted in described first guiding tube is separated into chamber up and down to first chamber, when opening the door according to the rising of described first piston, the flow that flows into lower chambers from the upper chamber of first chamber is the first oily flow, and at closing time, the flow that the lower chambers of first chamber flows into upper chamber is the second oily flow littler than the described first oily flow;

Second hydraulic circuit, it comprises second piston rod, changes the upper end of piston rod and second pilot pin in described second lifting unit and links, and carry out elevating movement according to described second pilot pin rising and decline; At least one piston, itself and described second piston rod link and second chamber are separated into chamber up and down; And at least one spacer assembly, under the state in being inserted in described second guiding tube, with in described second guiding groove, separate according to space that be multiplied, between the described piston; When opening the door according to the decline of described at least one piston, the oily flow that flows into upper chamber from the lower chambers of described second chamber is the first oily flow, and at closing time according to the rising of described at least one piston, the oily flow that flows into lower chambers from the upper chamber of second chamber is the second oily flow littler than the first oily flow, and the described the two the second oily flows change according to the door opening angle;

First and second sealing caps, on itself and described first and second guiding tubes/the lower end sealing joins, thereby forms independently hydraulic circuit respectively in described first and second guiding tubes; And

First and second elastomeric elements, it is placed in the top of described first chamber and the bottom of described second chamber respectively, flexibly to support described first and second pistons; And the described restoring force that makes first and second pistons be returned to initial position when opening the door can be provided respectively,

Wherein, any one in described first and second lifting units only operated in predetermined door open angle scope.
9. as claimed in claim 8 be used for large-scale heavy door return hinge means automatically, wherein, described second hydraulic circuit comprises:

Actuator comprises second piston rod, and second pilot pin in its top and described second lifting unit links, and according to the lifting of described second pilot pin and lifting; And at least one piston, itself and described second piston rod link, and second chamber is separated into up and down chamber, wherein, comprise the first oil footpath and at least one second oil footpath in addition in second piston rod and described at least one piston, it moves between chamber up and down described according to the rotation of door;

At least one spacer assembly, it is according to the number of pistons that increases exponentially, and interior part in described second guiding tube, between the described piston space is separated;

At least one flap valve, it is placed at least one second oil footpath of described piston, and only opens feasible oil flows into upper chamber from lower chambers oil footpath when opening the door; And

The hydraulic control bar, the one end is supported by described second sealing cap, its front end is inserted in the oil of first in described second piston rod footpath, to flow into the oil mass size of lower chambers via the described first oil footpath according to the gear control of described actuator, and controlling the rising and the decrease speed of actuator at closing time thus multistagely, this actuator is driven by the restoring force in described second elastomeric element and rises and descend.
10. as claimed in claim 9 be used for large-scale heavy door return hinge means automatically, wherein, if described second hydraulic circuit is the biliquid hydraulic circuit, then the oil of first in second piston rod of described actuator footpath comprises: the first secondary oil footpath, oil is positioned at a distance of the bottom of described first oil of distance middle body directly, so that can flow into the top and the bottom of each chamber; The second secondary oil footpath interconnects the top of the described first secondary oil footpath and described second chamber; The 3rd secondary oil footpath is interconnected the bottom of the described first secondary oil footpath and described second chamber; Fourth officer oil footpath is interconnected the top of the described first secondary oil footpath and the 3rd chamber;

Described hydraulic control bar comprises: a pair of high speed part setter of constant diameter, and it has bigger oily flow; A pair of low speed part setter, it is positioned at the downside of described a pair of high speed part setter, and be taper, so You flow along with diameter from top to the bottom increase and change, make thus through the oily flow of described low speed part setter less than oily flow through described high speed part setter;

Described a pair of low speed part setter is made compensation to the minimizing of the restoring force in second elastomeric element because by from described second and the top of the 3rd chamber oil stream that flows to the described first and second chamber bottoms increase gradually according to the lifting position of piston.
11. as claimed in claim 8 be used for large-scale heavy door return hinge means automatically, wherein, described first and second lifting units comprise:

The first and second vertical guiding grooves and the third and fourth vertical guiding groove, it forms up and down in the inboard relative position of described first and second guiding tubes;

First and second camshafts, it is driven by the relative external force that produces in described first and second guiding tubes when door rotates and rotates, wherein first and second described central bodies of fixing insertion also toward each other, first and second cylinders that are formed into from described first and second expansions are placed in the inner periphery of described first and second guiding tubes respectively rotationally, be formed with the first and second lifting bullports and the third and fourth lifting bullport, the cam diagram that the described first and second lifting bullports and the third and fourth lifting bullport have the spiral shape of the symmetrical structure that can move mutually along the described first and second cylindrical neighborings with inserting;

First and second pilot pins, two end are connected to the described first and second vertical guiding grooves and the third and fourth vertical guiding groove via the described first and second lifting through holes and the third and fourth lifting through hole respectively;

Wherein, the described first and second lifting bullports of described first and second camshafts and the third and fourth lifting bullport are with relative direction setting, and a pair of cam diagram length in the described first and second lifting bullports and the third and fourth lifting bullport is longer than another right cam diagram length.
12. as claimed in claim 8 be used for large-scale heavy door return hinge means automatically, wherein, described second hydraulic circuit comprises:

Actuator comprises second piston rod, and second pilot pin in its top and described second lifting unit links, and according to the lifting of described second pilot pin and lifting; And at least one piston, itself and described second piston rod link, and second chamber is separated into up and down chamber, wherein, comprise the first oil footpath and at least one second oil footpath in addition in second piston rod and described at least one piston, it moves between chamber up and down described according to the rotation of door;

At least one spacer assembly, it is according to the number of pistons that increases exponentially, and interior part in described second guiding tube, between the described piston space is separated;

At least one flap valve, it is placed in each lower part of piston, and be installed on the valve support member, described valve support member has at least one the 3rd oil footpath that communicates with described at least one second oil footpath, and described at least one flap valve is only opened when opening the door and is made oil flow into upper chamber from lower chambers;

At least one overvoltage protection valve, it is flexibly at each piston lower support valve support member, when door is closed with normal speed, do not work, and at door during, between the periphery of described valve support member and described second guiding tube, form the 4th oil footpath by very big external force quick closedown; And

The hydraulic control bar, the one end is supported by described second sealing cap, its front end is inserted in the oil of first in described second piston rod footpath, to flow into the oil mass size of lower chambers via the described first oil footpath according to the gear control of described actuator, and controlling the rising and the decrease speed of actuator at closing time thus multistagely, this actuator is driven by the restoring force in described second elastomeric element and rises and descend.