CN105201928B - Has the fluid device for drawing-in and pumping-out of shunting structure - Google Patents

Abstract

The fluid device for drawing-in and pumping-out of tool decompression configuration provided by the present invention, it makes fluid device for drawing-in and pumping-out when carrying out fluid discharge operation in container, an outlet side of fluid device for drawing-in and pumping-out is kept to be connected with being maintained between air, make the outlet side in endless totally-enclosed, the gases at high pressure for making to enter inside the fluid device for drawing-in and pumping-out according to this form a pressurization shunting and shunted with a discharge, and the discharge is shunted and is directed to via the outlet side in air.

Description

Has the fluid device for drawing-in and pumping-out of shunting structure

Technical field

The present invention is relevant with pneumatic tool technology, especially with regard to a kind of fluid device for drawing-in and pumping-out for having shunting structure.

Background technology

Press, the fluid device for drawing-in and pumping-out developed based on venturi principle, existing many differences in known technology Particular technique content be disclosed, for example have the stream disclosed by case before No. 089222099 new patent of TaiWan, China Body device for drawing-in and pumping-out, it provide in particular flow path of the control gas in Venturi tube, can inhale making of can arranging so as to provide With effect, and the convenience in operation is substantially improved.

And then be conceived to the angle of industry security before No. 098222559 new patent of TaiWan, China in case, just it is foregoing The fluid device for drawing-in and pumping-out known is further improvement, with the use state in response to known fluid device for drawing-in and pumping-out, is changed outside high Calm the anger the flow of body influent stream, can not be to outside when entering to be about to known fluid device for drawing-in and pumping-out inside external fluid suction container The flow that enters of gases at high pressure imposes control, and makes larger influent stream speed and enter the preferable suction of flow offer, but when with existing When fluid device for drawing-in and pumping-out enters to be about to container internal flow and discharged, then need to limit external high pressure gas enters flow, avoids holding Because of the entrance of moment a large amount of gases inside device, cause fluid in container to discharge too late and make accumulated gases in container, make container The situation of dilatancy is produced, while slows down the speed that fluid is discharged in container；In addition, in case and have before the new patent to pacify Full valve avoids the explosion of container.

Before open that improving technology can control gases at high pressure by influent stream end admittedly enter flow, but typically using upper, above opening stream The adjustment mechanism of air pressure is not set additionally generally between body device for drawing-in and pumping-out and high-pressure air source, therefore, indulges to enter gases at high pressure and holds Flow inside device is limited, still very high into the gas pressure inside container, and can not avoid the expansion of container completely Situation occurs, and indulges it and has been provided with safety valve to pressure release, but the startup of safety valve be need to be in the minimum startup pressure of a setting It is more than power, when not yet reaching the startup pressure, the safety valve can't start, and the expansion status of container can not be avoided to produce It is raw, be subject to such container be usually with made by high polymer material, after permanent use, the preceding weight opened improving technology and still suffered from It compound expansion situation, that is, mean that container is still repeatedly acted on by external force in itself, easily lower the intensity of container in itself, and easily spread out The situation of raw rupture, and still have and be subject to improved necessity, and the pressure value inside the container is located at the lowest starting pressure value When neighbouring, because the pressure in container not immobilizes, therefore, also the safety valve will be caused repeatedly to start, close, and Influence to use.

The content of the invention

It is an object of the invention to provide a kind of fluid device for drawing-in and pumping-out for having decompression configuration, it is carrying out fluid device for drawing-in and pumping-out When fluid discharges operation in container, keep an outlet side of fluid device for drawing-in and pumping-out to be connected with being maintained between air, make the outlet side be in Endless totally-enclosed, the gases at high pressure for making to enter inside the fluid device for drawing-in and pumping-out according to this form a pressurization shunting and shunted with a discharge, And the discharge is shunted and is directed to via the outlet side in air.

To achieve the above object, the present invention takes following technical scheme：

The fluid device for drawing-in and pumping-out of tool shunting structure provided by the present invention, its main technical characteristic is to draw to send in known fluid It is extra that the drainage channel that can be directed to gas in air is set on the outlet end position of device, specifically, on its construction Include a container, there is an inside closing room, a feeding mouth, to connect inside and outside the room；One pressure differential generating unit, On the container, there is an air inlet end and an outlet side, a hollow pressure differential generating piece, between the air inlet end and the outlet Between end, a passage, the pressure differential generating piece and the room are connected；One choke portion, in the pressure differential generating unit, and can be one Blocking and a displacement between the open position start；One intake section, be connected on the container, and with the air inlet end, to outside The transfer pipeline connection of gases at high pressure, to form the flow passage that external high pressure gas enters the air inlet end；And its feature then exists In when the choke portion is located on the blocking position, incomplete blocking outlet side, making the outlet side connect with a part of with air It is logical；Accordingly, when the choke portion is located on the blocking position, the external high pressure gas that is entered by the air inlet end split into one plus Pressure shunting shunts with a discharge, pressurization shunting is entered via the pressure differential generating unit in the room, and shunt the discharge Escaped via the outlet side into air.

Further, the outlet side can be single poroid gas flow channel, or plural gas flow channel, And mobile route of the choke portion between the blocking position and the release position, can be relative on the outlet side hole axle axial direction Reciprocal axle moves, or the reciprocating rotation relative to the outlet side radially.

Further, can when the outlet side is single poroid gas flow channel and the choke portion carries out radial rotating Make the choke portion that there is a pivot, sheet swivel is amplexiformed in the outlet positioned at axial one end of the pivot so that side is unilateral In the aperture the week side of boss at end, and can the pivot be axle pivot start between the open position and the blocking position.

Wherein, the choke portion has further included a breach, on the swivel, when the swivel is located on the blocking position, Make the exhaust breach and the outlet side aperture interlaced with each other and common factor landform headroom in a row, bleed is shunted to big for the discharge Gas.

Wherein, the another end aperture of the outlet side is in sector respectively with the breach.

Further, can when the outlet side is single poroid gas flow channel and the choke portion moves axially Make the choke portion that there is an axle plug, the aperture of the outlet side is coaxially opposite in one end, and can be along itself axially in the unlatching Position and the blocking position countershaft move, and when on the blocking position, the aperture of the outlet side are connected to one end, and block One of the outlet side aperture.

Wherein, the choke portion is with more an exhaust breach, on one end of the axle plug, when the axle plug is located at the blocking position When putting, one end of the axle plug abuts the aperture for closing the outlet side, and the exhaust breach then connects the outlet side and air.

Further, when poroid gas flow channel of the outlet side for plural number, it can make the outlet side that there is an outlet Hole, and an aperture are less than the steam vent of the venthole, when the choke portion is located on the blocking position, close the venthole Aperture, and make the steam vent and atmosphere.

The beneficial effects of the invention are as follows：The fluid device for drawing-in and pumping-out of tool decompression configuration provided by the present invention, it draws fluid Device is sent to keep an outlet side of fluid device for drawing-in and pumping-out to be connected with being maintained between air when carrying out fluid discharge operation in container, Make the outlet side in endless totally-enclosed, the gases at high pressure for making to enter inside the fluid device for drawing-in and pumping-out according to this formed a pressurization shunting with One discharge shunting, and the discharge is shunted and is directed to via the outlet side in air.

Brief description of the drawings

Fig. 1 is the exploded perspective view of the first preferred embodiment of the invention.

Fig. 2 is the combination stereogram of the first preferred embodiment of the invention.

Fig. 3 is the sectional view of the first preferred embodiment a-a secants along Fig. 2 of the invention, wherein, the choke portion opens positioned at this Open on position.

Fig. 3 A are the enlarged diagram along Fig. 3 at A.

Fig. 4 is the sectional view of the first preferred embodiment a-a secants along Fig. 2 of the invention, wherein, the choke portion is located at the resistance In closed position.

Fig. 4 A are the enlarged diagram along Fig. 4 at B.

Fig. 5 is the exploded perspective view of the second preferred embodiment of the invention.

Fig. 6 is the combination stereogram of the second preferred embodiment of the invention.

Fig. 7 is the sectional view of the second preferred embodiment b-b secants along Fig. 6 of the invention, wherein, the choke portion opens positioned at this Open on position.

Fig. 7 A are the enlarged diagram along Fig. 7 at C.

Fig. 8 is the choke facial planes schematic diagram of the second preferred embodiment of the invention, wherein, the choke portion is located at the open position Put.

Fig. 9 is the sectional view of the second preferred embodiment b-b secants along Fig. 6 of the invention, wherein, the choke portion is located at the resistance In closed position.

Fig. 9 A are the enlarged diagram along Fig. 9 at D.

Figure 10 is the choke facial planes schematic diagram of the second preferred embodiment of the invention, wherein, the choke portion is located at the blocking On position.

Drawing reference numeral：10、10’：Has the fluid device for drawing-in and pumping-out of shunting structure；20、20’：Container；21：Stack shell；22：Cover； 23：Room；24：Feeding mouth；30、30’：Pressure differential generating unit；31：Pressure differential generating elements；32：Air inlet end；33、33’：Outlet End；331、331’：Venthole；332：End cap；34：Passage；40、40’：Choke portion；41：Axle plug；41’：Pivot；42：Exhaust lacks Mouthful；42’：Swivel；43’：Tommy bar；44’：Breach；45’：Exhaust space；50、50’：Intake section；a：Air-flow；a1：Pressurization shunting； a2：Discharge shunting.

Embodiment

First, refer to shown in Fig. 1 to Fig. 4 and Fig. 4 A, the tool shunting structure provided in the first preferred embodiment of the invention The fluid device for drawing-in and pumping-out 10 made, it is identical with preceding opening No. 098222559 new patent person of taking off, but except that the present embodiment It is middle the shunting structure of exposure is belonged into the new patent before case institute without person, specifically, the fluid of the tool shunting structure, which is drawn, send dress Put 10 and consist predominantly of a container 20, a pressure differential generating unit 30, a choke portion 40 and an intake section 50.

The container 20 has the stack shell 21 of a hollow tip transmission, a cylinder that can be closed the top end opening of stack shell 21 Lid 22, in order to close the top end opening of the stack shell 21 by the cover 22, make the internal capacity room 23 of stack shell 21 in closing, a tubulose Feeding mouth 24 connect the room 23 inside and outside.

The pressure differential generating unit 30 has a hollow pressure differential generating elements formed with Venturi tube on the cover 22 31, in the cover 22, an air inlet end 32 and an outlet side 33 are divided on the cover 22, and each communicate with pressure differential production Raw part 31 with outside the cover 22, a passage 34, connecting the pressure differential generating elements 31 and the room on the cover 22 23。

The choke portion 40 is located in the pressure differential generating unit 30, and adjacent corresponding with the outlet side 33, to control this to go out Connected state between gas end 33 and air, and can the start between an open position and a blocking position, it is however generally that, when positioned at this When in open position, i.e., as shown in Fig. 3, Fig. 3 A, the choke portion 40 does not interfere the connection between the outlet side 33 and air, makes gas Body can flow between 33 whole spaces of outlet side and air.

The intake section 50 in a tubular form, and connects with the air inlet end 32, to be connected with the transfer pipeline of external high pressure source of the gas, To form flow channel, the gas of external high pressure source of the gas is set to enter via the air inlet end 32 in the pressure differential generating elements 31.

Above-mentioned illustrated person belongs to published known technology content, real without carrying out excessive say again in the present embodiment It is bright, it is to be illustrated as above with only outline.

Followed by by explanation i.e. category the technology of the present invention feature part, specifically：

The outlet side 33 has the venthole 331 of a circular hole, and hole axle one end connects with the pressure differential generating elements 31, another end Aperture is then located at the side of the cover 22, and the cylinder is located in order to the end cap 332 with atmosphere, a tubular with openend in open shape On lid 22, and positioned at the outside in the another end aperture of venthole 331.

The choke portion 40 has the axle plug 41 of a screw shaped, and spiral shell is on the end cap 332 and with one end and the venthole 321 Another end aperture coaxially correspond to, and can be along itself axially reciprocal axle shifting start between the open position and the blocking position, a row Gas breach 42 located at the axle plug 41 one end on, accordingly, deserve axle plug 41 be located on the blocking position, and with axial one end tight against In on the another end aperture of venthole 331, while it blocks venthole 331, it is another that the exhaust breach 42 connects the venthole 331 Stomidium mouth and air, and as shown in Figure 4 as, though gas in the venthole 331 by the stop of the axle plug 41, but still can Via the bleed of exhaust breach 42 into air.

By the composition of above-mentioned component, the fluid device for drawing-in and pumping-out 10 of the tool shunting structure is entering to be about to external fluid to draw to take in When entering the operation inside the room 23, as shown in Fig. 3, Fig. 3 A, the choke portion 40 is located in the open position, then it is outside high Calm the anger body from the air inlet end 32 via the pressure differential generating elements 31, during from the jet flow of outlet side 33 to the air, the pressure differential produces The low static pressure area that part 31 is formed can reduce the pressure in the room 23, draw the fluid of outside so as to obtain a suction Take in the room 23.

And when the fluid device for drawing-in and pumping-out 10 of the tool shunting structure is entering to be about to what the fluid inside the room 23 outwards pushed During operation, the choke portion 40 is set to be located on the blocking position, accordingly, then external high pressure gas enters the pressure from the air inlet end 32 During poor generating elements 31, because the outlet side 33 is most by blocking, causes the flow direction of gas to be changed, text can not be produced Family name's tube effect, then it is split shunting a2 for the pressurization discharges of shunting a1 and one into the air-flow a of the pressure differential generating elements 31, its In, the pressurization shunts a1 and entered via the passage 34 in the room 23, and to improve the air pressure in the room 23, and the discharge shunts A2 then via the exhaust breach 42 and bleed and passes through the breach of exhaust 42 and connects air and the venthole 331 into air Construction, a1 can be shunted by the pressurization of atmospheric pressure adjust automatically and shunts the respective flows of a2 with the discharge, avoids excessive gas Body is accumulated in the room 23, and derivative makes the situation that the barrel of the stack shell 21 expands, in addition to the intensity that can ensure that the stack shell 21, The rate of flow of fluid of discharge can be made more gentle, in favor of using.

It is continuous to refer to shown in Fig. 5 to Figure 10, have the fluid of shunting structure provided in the second preferred embodiment of the invention Device for drawing-in and pumping-out 10 ', it generally has with preceding taking off the first preferred embodiment identical construction, in other words, i.e. the tool shunting structure Fluid device for drawing-in and pumping-out 10 ' also include a container 20 ', a pressure differential generating unit 30 ', a choke portion 40 ' and an intake section 50’。

And it is to be with the different person of first preferred embodiment institute：

Venthole 331 ' possessed by the outlet side 33 ' is in sector.

The choke portion 40 ' then wears with a pivot 41 ' and is articulated on the end cap 332 ', a fan-shaped sheet swivel 42 ' It is fixed in one end of the pivot 41 ', and is amplexiformed so that side is unilateral on the another end aperture week side end face of the venthole 331 ', in order to can With the pivot 41 ' is axle and along the radial direction of the venthole 331 ', the reciprocally pivot between the open position and the blocking position Transfer to dynamic, a tommy bar 43 ' is vertically fixed in the another end on the outside of the prominent end cap 332 ' of the pivot 41 ', so that force switching should Swivel 42 ', a fan-shaped breach 44 ' is on the swivel 42 '.

Accordingly, when the swivel 42 ' is located in the open position, as shown in Fig. 7, Fig. 7 A and Fig. 8, make the breach 44 ' with The another end aperture of the venthole 331 ', which overlaps, to be corresponded to, and with the whole in the open another end of the venthole 331 ' aperture, allows gas should Whole spaces that venthole 331 ' is provided are as the flow channel for flowing to air.

And when the swivel 42 ' is located on the blocking position, then as shown in Fig. 9, Fig. 9 A and Figure 10, the breach 44 ' with The another end aperture of the venthole 331 ' is interlaced with each other, and an exhaust space 45 ' is formed in the position occured simultaneously each other, accordingly, the row Going out to shunt a2 can be via the bleed of exhaust space 45 ' into air, so as to obtain what is taken off with foregoing first preferred embodiment Identical effect.

It is foregoing take off first and second preferred embodiment be with the outlet side only with single venthole construction carried out by Explanation, it is partly connected on the outlet end opening by one end end face with the choke portion, in order to so that the outlet side Poroid outlet is blocked by part, to reach above-mentioned purpose and effect, but is not limited in its specific technology with it, its Also the length in the choke portion as taken off in case before No. 098222559 new patent can be changed, its choke portion is located at the resistance It is former micro- to be separated by one between the end face in the poroid outlet with the outlet side, with the poroid outlet of the outlet side when in closed position Small gap, according to this for the bleed of discharge shunting, and specifically reach the technology contents of the minim gap, then can pass through shortening The mode of choke minister's degree, or with appropriate locating structure to reach, it is all this, all should belong to the present invention should be protected Scope person.

In addition, the outlet side nor being only limitted to only can be that single venthole constructs, for example, it can also make the outlet side The steam vent of venthole and a smaller aperture due with a larger aperture, and the pressure differential generating elements and air are respectively communicated with, according to This, then the construction in the choke portion can be continued to use as preceding taken off case before No. 098222559 new patent, make the choke portion positioned at should When on blocking position, block the venthole completely, and the pressure differential generating elements and air are only connected by the steam vent, accordingly, Also it still may achieve the identical effect taken off with before taking off two embodiments.

In other words, it is of the invention to be mainly characterized by when the choke portion is located on the blocking position, it can still carry For one with connecting the communicating passage between the pressure differential generating elements and air, so that air-flow a can be split into the pressurization point A1 and discharge shunting a2 are flowed, so as to be able to that the flow of the respectively shunting is automatically adjusted by atmospheric pressure, ensures member to reach Part is damaged and sent out fluid with easing up, in favor of using, i.e. and it is all that there is technical characteristic person, this case all should be belonged to plan to invite and ask The scope of protection.

Claims (2)

1. a kind of fluid device for drawing-in and pumping-out for having shunting structure, it is characterised in that it includes：

One container, there is an inside closing room, a feeding mouth, to connect inside and outside the room；

One pressure differential generating unit, on the container, there is an air inlet end and an outlet side；One hollow pressure differential generation Part, between the air inlet end and the outlet side；One passage, connect the pressure differential generating piece and the room；

One choke portion, in the pressure differential generating unit, and can be in a blocking and a displacement between the open position start；

One intake section, it is connected on the container, and with the air inlet end, to connect with the transfer pipeline of external high pressure gas Connect, to form the flow passage that external high pressure gas enters the air inlet end；

It is characterized in that：

The outlet side has a venthole, is connected with one end with the pressure differential generating elements；

The choke portion has a pivot；One sheet swivel is amplexiformed in institute positioned at axial one end of the pivot so that side is unilateral State on the another end aperture week side end face of venthole, and can the pivot be that radial direction of the axle along the venthole pivots start；One Breach is on the swivel；When the choke portion is located on the blocking position, the side of the swivel is unilateral to be sticked in institute State the part in the another end aperture of venthole, and the another end aperture of venthole described in incomplete blocking, make the breach with it is described Venthole another end aperture not by the swivel blocking part is interlaced with each other and common factor landform headroom in a row, make the outlet End goes out to shunt bleed to air with a part of and atmosphere, supply and discharge；

Accordingly, when the choke portion is located on the blocking position, by the external high pressure gas that the air inlet end enters by point Flow and shunted for a pressurization shunting with a discharge, the pressurization shunting is entered via the pressure differential generating unit in the room, And the discharge shunting is set to be escaped via the outlet side into air.

2. the fluid device for drawing-in and pumping-out of tool shunting structure according to claim 1, it is characterised in that the another end of the venthole Aperture is with the breach respectively in sector.