CN2455886Y - Sliding door closer - Google Patents

Abstract

The utility model relates to a sliding type door closer which is an automatic-closing device for horizontal opening doors. The utility model uses a connecting rod to convert the rotation of a door with the rectilinear motion of a drive device, and directly makes use of the rectilinear motion of the drive device to drive the door to rotate so as to simplify the structure of the door closer. The sliding type door closer is mainly composed of a supporting base, a body and a connecting rod which is respectively hinged to connect with a sliding block arranged on the supporting base and the body, wherein the supporting base is fixed on a door frame, and the body is fixed on the door. When the door is opened, the sliding block drives a power device arranged inside the body to accumulate energy. When hands release the door, the power device drives the sliding block to control the door to close automatically by the connecting rod.

Description

The slidingtype door closer

The slidingtype door closer is a kind of self closing device of vertical hinged door.

General door closer all adopts the mode of rotation to reach the purpose of closing the door automatically.When opening the door, push and pull system is rotated the axle of door closer, and converts rectilinear motion to by rack-and-pinion, drives the energy storage equipment accumulation of energy; At closing time, the axle that energy storage equipment drives door closer rotates, and door is closed.This class door closer, complex structure, cost are higher.Different with general door closer, Chinese patent 99212204.X discloses a kind of door closer, it is respectively by the power set that link to each other with two end bearings, with two bearings compositions that are separately fixed on the door and on the doorframe, the switch of door directly changes the rectilinear motion of power set into, makes this door closer structure comparatively simple.But this door closer outward appearance is not good, and functions such as the speed adjusting of door closer realize difficulty.

The objective of the invention is in order to solve deficiency, a kind of outward appearance grace, door closer functional, simple in structure, with low cost are provided with upper door closer.For this reason, the present invention has adopted new principle.

The slidingtype door closer of the present invention design is by being fixed on the body on the door and being fixed on bearing on the doorframe, and respectively with body on slide block and the hinged connecting rod that connects three parts of bearing form.Body has the power set that can do reciprocating linear motion.Power set link to each other with slide block.Slide block is subjected to can only doing reciprocating linear motion such as the chute component limitations.Connecting rod one end is with slide block, and both moving linearly also rotated around the slide block axle center; The connecting rod other end rotates around the fixing axle center of bearing.Like this, when door rotated, owing to be subjected to the constraint of system, slide block is made definite rectilinear motion in body, and was same, and the rectilinear motion of slide block also can make door have definite rotation.The length velocity relation of door closer, the relation of power are also just correspondingly decided.This relation be by length of connecting rod, bearing axial line and body with respect to the determining positions of the center of rotation of door, wherein, the position of bearing axial line plays a decisive role.

The intrinsic power set of door closer can be the devices that comprises air spring, also can be the composite sets that comprises hydraulic accumulating device, hydraulic control device and oil cylinder.Air spring is by the gas energy storage equipment, speed control element, piston rod, piston, compositions such as piston rod.Body also has the slide block that is connected with piston rod on the power set except power set, parts such as shell are formed.When applying when opening the door power, connecting rod drives slide block, and piston rod is pressed into, and causes in-oil cylinder pressure to increase, and in-oil cylinder medium enters energy storage equipment by hydraulic control circuit, obtains accumulation of energy.After external force was removed, the medium of energy storage equipment was pressed into oil cylinder by control oil channel, produced power, and piston rod is outwards moved, so slide block is closed door by connecting rod.Here, hydraulic accumulating device can adopt spring energy-storage and gas accumulation of energy two classes, multiple form of structure.Sometimes, the cylinder body and the cylinder block of energy storage equipment can be become same cylinder body.Usually, the oil cylinder of this door closer adopts three kinds of forms: a kind of is ram cylinder, its piston rod rely on open the door defeat into, and the fluid pressure that relies on energy storage equipment to produce releases, the flow that it can control the turnover oil cylinder reaches the control speed of closing the door; Second kind is two-way cylinder, its piston rod is when releasing, piston not only is subjected to the pressure of plunger shaft, simultaneously, also be subjected to the back pressure of piston rod chamber, back pressure is produced by the meter out of piston rod chamber, like this, by close segments speed starting point and close segments stroke, the oil return opening and the choke valve of two cover diverse locations is set, just can realize opening the door and the control of two sections speed of closure; The third oil cylinder is the staged oil cylinder, makes piston be subjected to back pressure control on the top, to control closing speed etc.Oil cylinder and control device can also have very many variations, to realize the various functions of door closer, various uses.In order to realize closed buffering, slide block can move at axis direction with respect to piston rod, to regulate relative position, be convenient to after alliance is determined, regulate the vertex position of oil cylinder inner carrier, make door before arriving doorframe, piston seals oil return opening gradually, cause recirculating oil quantity to reduce gradually, closing speed is slack-off gradually, plays the effect of closed buffering.Need to prove that slide block also can fixedly connected with piston rod, otherwise realize adjusting the piston vertex position.Stop door in order to be implemented in 90 degree, the Position Design with oil-in arrives 90 degree, the pairing position of piston seal mouth at door usually, surpasses 90 when opening the door when spending, and the piston seal mouth surpasses oil-in, makes pressure source be in piston rod side, thereby makes piston lose thrust.In order to realize can forcing to close the door, can piston rod side between the piston opposite side, overflow valve is set.The pressure setting of overflow valve should be considered the door closer capability of anti-wind and force two factors of door closing force.In order to realize that door is stopped in the position arbitrarily, can valve be set at oil-in, also can valve be set at oil return opening, with the switch oil circuit, cut off normal loop, make door stop at certain a bit; Simultaneously, the liquid that piston motion the produced stream that external force is caused flows by overflow valve (or choke valve), or by the loop flow of one way valve to the high pressure direction, like this, both can make the rotation of door produce damping, and also can door stopped on any one position that needs with hand.

Slidingtype door closer of the present invention is converted into rectilinear motion with connecting rod with the rotation of door, and directly utilizes rectilinear motion to drive the energy storage equipment accumulation of energy, and the rotation of control, driving gate, makes the structure of door closer very simple, and its manufacturing cost is reduced greatly.Since this door closer with, doorframe be connected very succinctly, harmonious, add that the body housing of this door closer separates with body, shell can adopt beautiful decoration modes such as noble metal, makes this door closer outward appearance grace.In addition, this door closer not only can reach two sections of the closing the door of common door closer/closed does not have functions such as joint speed governing, 90 degree stop, and door closer of the present invention can also be realized closed buffering regulatory function, the closing speed of door closer can be closed door in mode gradually slack-offly, and a chronic illness of hitting of door closer obtains radical cure; And door closer of the present invention can also realize that the optional position stops a function, and this makes the application of door closer improve and enlarges.In the following areas, the performance of door closer of the present invention has significant progress: this door closer has been simplified linkage, so the power of opening the door of this door closer is less owing to reduced gear mechanism; This door closer allows to force to close the door, and has strengthened the applicability of door closer; Because after the liquid medium of this door closer leaks, can be replenished by the liquid medium that stores in the energy storage equipment, so a certain amount of leakage does not influence performance, this makes the life-span of door closer and reliability greatly improve.

Fig. 1 is the schematic diagram of door closer.

Fig. 2 is the hydraulic schematic diagram of door closer power set.

Below in conjunction with accompanying drawing the slidingtype door closer is described further.

As shown in Figure 1, the bearing 1 of this slidingtype door closer is fixed on the doorframe 8, and body 3 is fixed on the door 5.Connecting rod 2 one ends and bearing 1 are hinged, and the slide block 4 on its other end and the body 5 is hinged.Slide block 4 is connected with power set 6.Obviously, during shown position, power set are to the thrust of slide block, make the generation moment of closing the door, and door is closed; After door turns over connecting rod axial line and hinge 7 hinged center coincide points, the thrust of power set then will make door open.So be advisable with-70 degree～-25 degree and 90 degree～160 degree scopes of door 5 opening directions in the hinged center of bearing.

Other function of door closer is to rely on power set to realize.As shown in Figure 2, the power set of door closer are by piston rod 17, piston 16 and overflow valve 15, and one way valve 14, choke valve 9,10, stop valve 11, and energy storage equipment 12 is formed.Be full of liquid in oil cylinder 13 and the loop, as hydraulic oil.Hydraulic fluid port A, B on the oil cylinder 13, C determine according to movement relation, are respectively that piston stops the position of the position of door, the speed of closing the door end and the position that closing speed finishes corresponding to door at 90 degree.The pressure of overflow valve should be set in to be had only external force to do the time spent just to move, and considers capability of anti-wind and the size of forcing door closing force simultaneously.The pressure that energy storage equipment is set, and the determining of diameter of piston rod should make system reach specified rotating torque according to the mechanical relationship of system.These power set make door closer have two sections does not have the joint speed governing, and 90 degree stop door, and functions such as door switch control are stopped in the position arbitrarily.

Claims (4)

1. slidingtype door closer, it comprises bearing, body, connecting rod, body comprises power set, it is characterized in that described body has and the hinged slide block that connects of connecting rod, and the power set that have a piston rod form, and slide block is connected with piston rod.

2. slidingtype door closer according to claim 1 is characterized in that described connecting rod, and the one end connects with bearing is hinged, and its other end connects with the slide block of body is hinged.

3. according to claim 1 and 2 described slidingtype door closers, it is characterized in that described power set are made up of the hydraulic accumulating device that comprises spring, choke valve, oil cylinder, hydraulic accumulating device links to each other with oil cylinder, choke valve by oil circuit.

4. according to claim 1 and 2 described slidingtype door closers, it is characterized in that described power set comprise air spring.