CN207406860U - Pressure reducing valve - Google Patents
Pressure reducing valve Download PDFInfo
- Publication number
- CN207406860U CN207406860U CN201721383069.2U CN201721383069U CN207406860U CN 207406860 U CN207406860 U CN 207406860U CN 201721383069 U CN201721383069 U CN 201721383069U CN 207406860 U CN207406860 U CN 207406860U
- Authority
- CN
- China
- Prior art keywords
- valve body
- pressure reducing
- middle valve
- valve
- safety device
- 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.)
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- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model provides a kind of pressure reducing valve, including upper valve body, middle valve body and lower valve body, upper valve body and lower valve body are respectively arranged in the upper and lower ends of middle valve body, the both ends of the trunnion axis of middle valve body are respectively arranged with air inlet and gas outlet, piston assembly is arranged in middle valve body, one end of compression spring of its one end with being set in upper valve body is connected, the other end is connected with the spool set in middle valve body, resetting spring is additionally provided with below piston assembly, safety device is provided on the outside of the middle valve body, safety device is connected with the gas outlet of middle valve body.The structure design of the utility model is reasonable, has the advantages that safety coefficient is high, performance is stable and service life is long.
Description
Technical field
The utility model is related to a kind of pressure reducing valve, especially a kind of pressure reducing valve of air motor.
Background technology
The pressure reducing valve used at present mainly has diaphragm type pressure-reducing valve and piston reducing valve.Diaphragm type pressure-reducing valve was using
Cheng Zhong, rubber diaphragm bear that pressure is low, and easily rupturable under pressure state, pressure regulation failure causes executive component to damage, endangers
Danger, functional reliability is poor, and service life is low.And piston reducing valve, when breaking down, downstream pressure rise, gas can not
Discharge, causes executive component to damage or even cause danger.
The content of the invention
The purpose of the utility model is to overcome above-mentioned technological deficiency, a kind of pressure reducing valve with safety device provided.
The technical solution of the utility model is：A kind of pressure reducing valve, including upper valve body, middle valve body and lower valve body, upper valve body and
Lower valve body is respectively arranged in the upper and lower ends of middle valve body, and the both ends of the trunnion axis of middle valve body are respectively arranged with air inlet and outlet
Mouthful, piston assembly is arranged in middle valve body, and one end of compression spring of its one end with being set in upper valve body is connected, the other end and middle valve body
The spool of interior setting connects, and resetting spring is additionally provided with below piston assembly, safety device is provided on the outside of the middle valve body,
Safety device is connected with the gas outlet of middle valve body.
The safety device includes safety valve and crossover sub, valve body in the connection of crossover sub one end, other end connection peace
Full valve.The crossover sub is by being screwed on middle valve body.
The one end of the upper valve body away from middle valve body is provided with handwheel, and one end of handwheel and one end of compression spring connect.
It is connected between the middle valve body and lower valve body equipped with filter mantle, filter mantle one end with middle valve body, the other end and lower valve
Body connects.The filter mantle is welded on skeleton by strainer and formed.
The beneficial effects of the utility model are：（1）The safety device turned on middle valve body gas outlet, safety device are set
Can be abnormal in gas outlet operating pressure, during more than safety device setup pressure value, it is exhausted, it is ensured that the peace that pressure reducing valve uses
Quan Xing.（2）Compression spring is compressed by adjusting handwheel, compression spring is made to promote piston, piston promotes spool, spool is allowed to be taken off with piston assembly
From, it concedes outlet pressure and adjusts to specified value, when spool and piston assembly depart from, some gas enters piston cavity of resorption,
Piston is made to remain the function of reset among work, ensure that the gap of spool and piston assembly is stablized, finally ensure that
The pressure of gas outlet is constant always.（3）The gas of air inlet is filtered by filter mantle, be ensure that the cleaning of gas, is improved and subtract
The service life of pressure valve.The utility model has the advantages that safety coefficient is high, performance is stable and service life is long.
Description of the drawings
The structure diagram of Fig. 1 the utility model；
Fig. 2 is the A-A sectional views in Fig. 1.
In figure：1 handwheel, 2 upper valve bodies, 3 compression springs, 4 piston assemblies, 5 resetting springs, 6 air inlets, 7 lower valve bodies, 8 filterings
It covers, 9 spools, 10 gas outlets, valve body in 11,12 safety devices, 12a safety valves, 12b crossover subs.
Specific embodiment
As depicted in figs. 1 and 2, the pressure reducing valve main structural components of the utility model include handwheel 1, upper valve body 2, middle valve body
11st, lower valve body 7, piston assembly 4, compression spring 3, resetting spring 5, spool, filter mantle 8 and safety device 12.Upper valve body 2 and lower valve body
7 are respectively arranged in the upper and lower ends of middle valve body 11, and the both ends of the trunnion axis of middle valve body 11 are respectively arranged with air inlet 6 and gas outlet
10, middle 11 outside of valve body is provided with safety device 12, and safety device 12 is connected with the gas outlet 10 of middle valve body.As a kind of preferred
Structure, safety device 12 include safety valve 12a and crossover sub 12b, crossover sub 12b one end connection in valve body 11, it is another
Hold connection safety valve 12a.The crossover sub 12b is by being screwed on middle valve body 11.It sets and the outlet on middle valve body
The safety devices 12 of 10 conducting of mouth, the gas of gas outlet 10 are partly into safety device, and safety device pressure is pressed according to work
Power is needed and set, when the operating pressure of gas outlet is abnormal the pressure value more than safety valve setting, safe valve exhaust, when
During less than safety valve setting pressure value, safety valve is closed.Improve the security of pressure reducing valve.
Piston assembly 4 is arranged in middle valve body 11, and one end of compression spring 3 of its one end with being set in upper valve body 7 is connected, another
It holds and is connected with the spool 9 set in middle valve body 11, the lower section of piston assembly 4 is additionally provided with resetting spring 5.Upper valve body 2 is away from
One end of valve body 11 is provided with handwheel 1, and one end of handwheel 1 is connected with one end of compression spring 3.The utility model is by adjusting handwheel 1
Compression spring 3 is compressed, compression spring 3 is made to promote piston assembly 4, piston assembly 4 promotes spool 5, spool 5 is allowed to depart from piston assembly 4, is conceded
10 pressure of gas port is adjusted to specified value, and when spool 5 and piston assembly 4 depart from, some gas enters piston cavity of resorption, makes work
The function that reset is remained among work is filled in, ensure that spool 5 and the gap of piston assembly 4 are stablized, finally ensure that out
The pressure of gas port is constant always.
It is connected between middle valve body 11 and lower valve body 7 equipped with filter mantle 8,8 one end of filter mantle with middle valve body 11, the other end is under
Valve body 7 connects.The filter mantle is that the integral structure formed on skeleton is welded on by strainer.The gas of air inlet 6 passes through filtering
8 filtering of cover, ensure that the cleaning of gas, improves the service life of pressure reducing valve.
Claims (6)
1. a kind of pressure reducing valve, including upper valve body, middle valve body and lower valve body, which is characterized in that upper valve body and lower valve body are installed respectively
In the upper and lower ends of middle valve body, the both ends of the trunnion axis of middle valve body are respectively arranged with air inlet and gas outlet, and piston assembly is set
In in middle valve body, one end of compression spring of its one end with being set in upper valve body is connected, and the other end connects with the spool set in middle valve body
It connects, resetting spring is additionally provided with below piston assembly, safety device, safety device and middle valve are provided on the outside of the middle valve body
The gas outlet connection of body.
2. a kind of pressure reducing valve according to claim 1, which is characterized in that the safety device includes safety valve and conversion connects
Head, valve body in the connection of crossover sub one end, other end connection safety valve.
3. a kind of pressure reducing valve according to claim 2, which is characterized in that the crossover sub is by being screwed at middle valve
On body.
4. a kind of pressure reducing valve according to claim 1, which is characterized in that the one end of the upper valve body away from middle valve body is set
There is handwheel, one end of handwheel and one end of compression spring connect.
5. a kind of pressure reducing valve according to claim 1, which is characterized in that equipped with filtering between the middle valve body and lower valve body
Cover, filter mantle one end are connected with middle valve body, and the other end is connected with lower valve body.
6. a kind of pressure reducing valve according to claim 5, which is characterized in that the filter mantle is welded on structure on skeleton by strainer
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721383069.2U CN207406860U (en) | 2017-10-25 | 2017-10-25 | Pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721383069.2U CN207406860U (en) | 2017-10-25 | 2017-10-25 | Pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406860U true CN207406860U (en) | 2018-05-25 |
Family
ID=62407516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721383069.2U Active CN207406860U (en) | 2017-10-25 | 2017-10-25 | Pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406860U (en) |
-
2017
- 2017-10-25 CN CN201721383069.2U patent/CN207406860U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief valve Effective date of registration: 20201106 Granted publication date: 20180525 Pledgee: Bank of China Limited Weihai Branch Pledgor: WEIHAI BOSHENG PNEUMATICS & HYDRAULICS Co.,Ltd. Registration number: Y2020980007601 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211201 Granted publication date: 20180525 Pledgee: Bank of China Limited Weihai Branch Pledgor: WEIHAI BOSHENG PNEUMATICS & HYDRAULICS Co.,Ltd. Registration number: Y2020980007601 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief valve Effective date of registration: 20211202 Granted publication date: 20180525 Pledgee: Bank of China Limited Weihai Branch Pledgor: WEIHAI BOSHENG PNEUMATICS & HYDRAULICS Co.,Ltd. Registration number: Y2021980013870 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221214 Granted publication date: 20180525 Pledgee: Bank of China Limited Weihai Branch Pledgor: WEIHAI BOSHENG PNEUMATICS & HYDRAULICS Co.,Ltd. Registration number: Y2021980013870 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pressure relief valve Effective date of registration: 20221221 Granted publication date: 20180525 Pledgee: Bank of China Limited Weihai Branch Pledgor: WEIHAI BOSHENG PNEUMATICS & HYDRAULICS Co.,Ltd. Registration number: Y2022980027235 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231226 Granted publication date: 20180525 Pledgee: Bank of China Limited Weihai Branch Pledgor: WEIHAI BOSHENG PNEUMATICS & HYDRAULICS Co.,Ltd. Registration number: Y2022980027235 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |