CN206786022U - A kind of vacuum valve - Google Patents
A kind of vacuum valve Download PDFInfo
- Publication number
- CN206786022U CN206786022U CN201720675125.3U CN201720675125U CN206786022U CN 206786022 U CN206786022 U CN 206786022U CN 201720675125 U CN201720675125 U CN 201720675125U CN 206786022 U CN206786022 U CN 206786022U
- Authority
- CN
- China
- Prior art keywords
- guide rod
- seal
- air inlet
- compensation
- gas outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a kind of vacuum valve, including valve body, valve inner has venting channels, air inlet and gas outlet is provided with valve body, and venting channels are provided with sealing valve port in the position between air inlet and gas outlet；Guide rod is provided with venting channels, guide rod one end is telescopically provided with compensation guide rod, and compensation guide rod one end is connected with seal；Compensation guide rod periphery is arranged with counterbalance spring；Guide rod periphery is arranged the bellows for sealing, and bellows is provided with sealing ring away from counterbalance spring one end；The utility model is moved down by guide rod makes seal be pressed on sealing valve port, sealed, the lower end of guide rod sets compensation guide rod, and provide elastic force using counterbalance spring, when loosening guide rod, or pad, when being deformed by temperature change, compensation guide rod, which continues to move down, compresses seal and sealing valve port, prevents gas leakage；And guide rod the week side of boss sets ripple bar, sealing effectiveness is improved.
Description
Technical field
It the utility model is related to valve field, more particularly to a kind of vacuum valve.
Background technology
In vacuum system, for seal keep vacuum equipment be chronically at vacuum state, in order to xegregating unit interlayer with
The element of the circulation of air is referred to as vacuum valve, vacuum valve is in vacuum state after cut-out.Vacuum valve, which has, much should
With scene, some need normally closed scenes, and existing vacuum valve is tightened by screw rod mostly, by vacuum valve inner sealing, when long
Between place if, it may appear that loosen, cause gas leak phenomenon；And existing vacuum valve obturation effect is also bad, inside has very
More gaps, the infiltration of gas is caused, influences vacuum effectiveness.
So being now badly in need of a kind of raising sealing effectiveness, and prevent from placing for a long time and occur loosening the vacuum valve revealed.
Utility model content
The purpose of this utility model is to provide a kind of vacuum valve, and it is poor to solve existing vacuum valve sealing effectiveness, and it is long when
Between place and easily loosen, the problem of causing gas leakage.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of vacuum valve of the utility model, including valve body, the valve inner have venting channels, set on the valve body
Air inlet and gas outlet are equipped with, the air inlet and gas outlet shift to install in the axial direction of valve body, and the venting channels position
Sealing valve port is provided with position between air inlet and gas outlet；Guide rod is provided with the venting channels, it is described to lead
Telescopically be provided with compensation guide rod to bar one end, described compensation guide rod one end is connected with seal, the seal from
Valve port is sealed described in the side seal of gas outlet one；The compensation guide rod periphery is arranged with the first guide sleeve, first guide sleeve
Periphery is arranged with counterbalance spring, for providing the elongation power of compensation guide rod；The guide rod periphery is arranged with the second guiding
Set, is provided with the bellows for sealing, the bellows leans between second guide sleeve and the side wall of the venting channels
Nearly described counterbalance spring one end is provided with retainer ring, and counterbalance spring one end is provided with sealing ring；The guide rod is away from institute
State seal threaded one end and be connected with spigot nut；The outer circumferential side of the spigot nut and the outer circumferential side of valve body are respectively provided with outer spiral shell
Line, and locking nut is threaded with, the locking nut is the nut with step, while is threaded in spigot nut
The outer circumferential side of outer circumferential side and valve body；
The air inlet is connected with air inlet flange by air inlet adapter；The gas outlet is taken over by gas outlet and connected
There is gas outlet flange.
Further, waist hole of the length along compensation guide rod axial direction is offered on the compensation guide rod, the ventilation is logical
Pin is provided with road, the pin is inserted in the waist hole.
Further, the seal is connected by bolt with the compensation guide rod.
Further, the seal is additionally provided with seal seats positioned at the compensation guide rod side.
Further, it is provided with thrust bearing between the spigot nut and locking nut.
Further, the counterbalance spring outer circumferential side is provided with spring protecting jacket.
Further, the interface of regulating for leading to the venting channels is further opened with the valve body, it is described to regulate interface
Communicated with air inlet.
Compared with prior art, advantageous effects of the present utility model are as follows：
The utility model by turn locking nut drive guide rod move down, so as to most at last seal be pressed to it is close
Seal on valve port, sealed, the lower end of guide rod sets compensation guide rod, and provides elastic force using counterbalance spring, makes guide rod
When loosening, or when pad is deformed by temperature change, compensation guide rod continues to move down seal and sealing valve port pressure
Tightly, gas leakage is prevented；And guide rod the week side of boss sets ripple bar, as sealing, termination sets sealing ring further to seal, and improves sealing
Effect, prevent gas from penetrating into, influence vacuum effectiveness.
Brief description of the drawings
The utility model is described in further detail for explanation below in conjunction with the accompanying drawings.
Fig. 1 is the utility model vacuum valve front view；
Fig. 2 is the utility model vacuum valve sectional view；
Description of reference numerals：1st, valve body；2nd, venting channels；3rd, air inlet；4th, gas outlet；5th, valve port is sealed；6th, guide rod；
7th, guide rod is compensated；8th, seal；9th, the first guide sleeve；10th, counterbalance spring；11st, the second guide sleeve；12nd, bellows；13rd, it is solid
Determine ring；14th, sealing ring；15th, spigot nut；16th, locking nut；17th, air inlet is taken over；18th, air inlet flange；19th, gas outlet
Adapter；20th, gas outlet flange；21st, waist hole；22nd, pin；23rd, seal seats；24th, thrust bearing；25th, spring protecting jacket；26、
Regulate interface.
Embodiment
As shown in Figure 1, 2, the one of which specific embodiment of a kind of vacuum valve, mainly valve body 1, the valve body 1 are included
Inside has venting channels 2, passes through for gas.Air inlet 3 and gas outlet 4 are offered on the valve body 1.The air inlet 3
Air inlet adapter 17 is welded with, the other end of air inlet adapter 17 is welded with air inlet flange 18, convenient to be connected with other parts.
The gas outlet 4 is welded with gas outlet adapter 19, and the other end of gas outlet adapter 19 is welded with gas outlet flange 20, it is convenient and its
Its part connects.Wherein, the air inlet 3 and gas outlet 4 shift to install in the axial direction of valve body 1, and the venting channels 2
Sealing valve port 5 is arranged with position between air inlet 3 and gas outlet 4.Guide rod 6, institute are installed in the venting channels 2
State the one end of guide rod 6 and compensation guide rod 7 is telescopically installed, can be specifically to open up blind hole in the termination of guide rod, will mend
The one end for repaying guide rod is penetrated in blind hole, extends and retracts compensation guide rod.Described compensation guide rod 7 one end passes through spiral shell
Tether and be connected to seal 8.More specifically described seal 8 is also equipped with seal seats positioned at compensation guide rod 7 side
23, make seal and compensation guide rod more stable.Compensation guide rod withstands on seal on sealing valve port, close by valve port is sealed
Envelope, prevent gas from entering gas outlet from air inlet, and valve port 5 is sealed described in the seal 8 from the side seal of gas outlet 4 one.
Compensation guide rod 7 periphery is arranged with the first guide sleeve 9, compensation guide rod is extended or is contracted along the first guide sleeve
It is short.The periphery of first guide sleeve 9 is arranged with counterbalance spring 10, and on the guide bar, the other end is withstood on one end top of counterbalance spring
In seal seats, for providing the elongation power of compensation guide rod 7.The outer circumferential side of counterbalance spring 10 is arranged with spring protecting jacket
25, for protecting counterbalance spring.The periphery of guide rod 6 is arranged with the second guide sleeve 11, guide rod is lived along the second guide sleeve
It is dynamic.In order to prevent gas leakage between venting channels and guide rod, second guide sleeve 11 and the venting channels 2 side wall it
Between bellows 12 for sealing is installed, the bellows 12 is provided with retainer ring 13 close to described one end of counterbalance spring 10,
For withstanding bellows in lower end, sealing ring 14 is installed away from the one end of counterbalance spring 10, on the one hand fixed bellows, on the one hand
Make further sealing.The guide rod 6 is connected with spigot nut 15 away from the threaded one end of seal 8, i.e. spigot nut leads to
Internal thread is crossed to be connected on the external screw thread of guide rod.The outer circumferential side of the spigot nut 15 and the outer circumferential side of valve body are respectively provided with outer spiral shell
Line, and locking nut 16 is threaded with, the locking nut 16 is the nut with step, while is threaded in guiding spiral shell
Female 15 outer circumferential side and the outer circumferential side of valve body 1.Thrust bearing 24 is installed between the spigot nut 15 and locking nut 16, made
Locking nut is easier to rotate.
Be further opened with leading to the venting channels 2 on the valve body 1 regulates interface 26, described to regulate interface 26 and air inlet
Mouth 3 communicates.
A kind of scheme for compensating guide rod and being slided along designed path is provided in this specific embodiment, i.e., described compensation is oriented to
Waist hole 21 of the length along the axial direction of compensation guide rod 7 is offered on bar 7, pin 22, the pin are fixed with the venting channels 2
In the 22 insertion waist holes 21, due to the fixation of pin, compensation guide rod 7 is set to be moved along the length direction of waist hole.
When turn locking nut, bar will be directed to and pushed up downwards, seal is pressed on sealing valve port, to sealing valve port
Sealed.Because the elastic force of counterbalance spring acts on, the pressure of seal is compensated, prevents threaded connection for a long time not
Dynamic, when causing the fatigability to loosen, or when pad deform by temperature change, at this moment the elastic force of counterbalance spring will further seal
Part is pressed on sealing valve port, prevents gas leakage.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to of the present utility model
Scope is defined, and on the premise of the utility model design spirit is not departed from, those of ordinary skill in the art are new to this practicality
The various modifications and improvement that the technical scheme of type is made, the protection domain of the utility model claims book determination all should be fallen into
It is interior.
Claims (7)
- A kind of 1. vacuum valve, it is characterised in that：Including valve body (1), there are venting channels (2) inside the valve body (1), it is described Air inlet (3) and gas outlet (4) are provided with valve body (1), the air inlet (3) and gas outlet (4) are in the axial direction of valve body (1) Shift to install, and the venting channels (2) are located in the position between air inlet (3) and gas outlet (4) and are provided with sealing valve port (5)；Guide rod (6) is provided with the venting channels (2), described guide rod (6) one end is telescopically provided with compensation and is oriented to Bar (7), described compensation guide rod (7) one end are connected with seal (8), and the seal (8) is from the side seal institute of gas outlet (4) one State sealing valve port (5)；Described compensation guide rod (7) periphery is arranged with the first guide sleeve (9), the first guide sleeve (9) periphery Counterbalance spring (10) is arranged with, for providing the elongation power of compensation guide rod (7)；Guide rod (6) periphery is arranged with The ripple for sealing is provided between the side wall of two guide sleeves (11), second guide sleeve (11) and the venting channels (2) Line pipe (12), the bellows (12) are provided with retainer ring (13) close to the counterbalance spring (10) one end, away from counterbalance spring (10) one end is provided with sealing ring (14)；The guide rod (6) is connected with spigot nut away from the seal (8) threaded one end (15)；The outer circumferential side of the spigot nut (15) and the outer circumferential side of valve body are respectively provided with external screw thread, and are threaded with locking nut (16), the locking nut (16) is the nut with step, while is threaded in the outer circumferential side and valve of spigot nut (15) The outer circumferential side of body (1)；The air inlet (3) takes over (17) by air inlet and is connected with air inlet flange (18)；The gas outlet (4) passes through outlet Mouth adapter (19) is connected with gas outlet flange (20).
- 2. vacuum valve according to claim 1, it is characterised in that：Length edge is offered on the compensation guide rod (7) The waist hole (21) of guide rod (7) axial direction is compensated, pin (22), pin (22) insertion are provided with the venting channels (2) In the waist hole (21).
- 3. vacuum valve according to claim 1, it is characterised in that：The seal (8) passes through bolt and the compensation Guide rod (7) connects.
- 4. vacuum valve according to claim 1, it is characterised in that：The seal (8) is located at the compensation guide rod (7) side is additionally provided with seal seats (23).
- 5. vacuum valve according to claim 1, it is characterised in that：The spigot nut (15) and locking nut (16) it Between be provided with thrust bearing (24).
- 6. vacuum valve according to claim 1, it is characterised in that：Counterbalance spring (10) outer circumferential side is provided with spring Protective case (25).
- 7. vacuum valve according to claim 1, it is characterised in that：It is further opened with leading to described lead on the valve body (1) Gas passage (2) regulates interface (26), and the interface (26) of regulating communicates with air inlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720675125.3U CN206786022U (en) | 2017-06-12 | 2017-06-12 | A kind of vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720675125.3U CN206786022U (en) | 2017-06-12 | 2017-06-12 | A kind of vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786022U true CN206786022U (en) | 2017-12-22 |
Family
ID=60715850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720675125.3U Expired - Fee Related CN206786022U (en) | 2017-06-12 | 2017-06-12 | A kind of vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206786022U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997954A (en) * | 2020-07-23 | 2020-11-27 | 江麓机电集团有限公司 | A combination valves for compressed air treatment for armoured vehicle |
| CN114922994A (en) * | 2022-06-30 | 2022-08-19 | 靖江佳佳精密机械科技有限公司 | Novel air-driven type sealing vacuum valve |
| WO2022217757A1 (en) * | 2021-04-16 | 2022-10-20 | 多立恒（北京）能源技术股份公司 | Valve |
-
2017
- 2017-06-12 CN CN201720675125.3U patent/CN206786022U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997954A (en) * | 2020-07-23 | 2020-11-27 | 江麓机电集团有限公司 | A combination valves for compressed air treatment for armoured vehicle |
| WO2022217757A1 (en) * | 2021-04-16 | 2022-10-20 | 多立恒（北京）能源技术股份公司 | Valve |
| CN114922994A (en) * | 2022-06-30 | 2022-08-19 | 靖江佳佳精密机械科技有限公司 | Novel air-driven type sealing vacuum valve |
| CN114922994B (en) * | 2022-06-30 | 2023-09-15 | 靖江佳佳精密机械科技有限公司 | Air-driven type sealing vacuum valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20210612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |