CN203703284U - Pressure relief valve - Google Patents
Pressure relief valve Download PDFInfo
- Publication number
- CN203703284U CN203703284U CN201420037256.5U CN201420037256U CN203703284U CN 203703284 U CN203703284 U CN 203703284U CN 201420037256 U CN201420037256 U CN 201420037256U CN 203703284 U CN203703284 U CN 203703284U
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- China
- Prior art keywords
- valve body
- slide block
- air
- valve
- valve rod
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a pressure relief valve which comprises a valve body. An air inlet is formed in the front end of the valve body, the rear end of the valve body is connected with an adjusting screw, the adjusting screw is provided with an air outlet, a sliding block is arranged in the valve body, a flow guide hole is formed in the front end of the sliding block, the rear end of the sliding block is connected with an end cover, the end cover is provided with a pressure relief channel, a primary spring is arranged between the end cover and the adjusting screw, an overflowing hole is formed in the side wall of the sliding block, a valve rod is arranged in the sliding block, and a clamping spring is arranged on the cylindrical surface, stretching out of the valve body, of the valve rod. The valve rod is sleeved with a secondary spring, an O-shaped ring is arranged on the end face of the valve rod, and a step groove matched with the overflowing hole is formed in the inner side wall of the valve body. The pressure relief valve can release redundant air in an air cylinder, and therefore when the air pump is started, the air pump is in a normal atmosphere state, motor starting loads are reduced, and energy consumption can be reduced. When the air pressure of the air pump exceeds set pressure, the air can be released through the pressure relief valve, the protection function is achieved, and the service life is prolonged.
Description
Technical field
The utility model relates to Decompression valves technical field, especially relates to a kind of Decompression valves for micro air pump or air compressor.
Background technique
Existing micro air pump or air compressor are after shutdown; in cylinder, also have certain air pressure to exist; make air pump or air compressor in the time that start next time; the startup load of motor is larger, and energy consumption is higher, and working life is shorter; its Decompression valves is to adopt the mode of manual pressure release to discharge the unnecessary gas in cylinder; operation inconvenience, and the too high problem of air pressure when micro air pump or the work of air compressor ubiquity, impact is normally used.
Summary of the invention
The deficiency existing for above-mentioned prior art, the purpose of this utility model is to provide a kind of Decompression valves for micro air pump or air compressor, when air pump is started in atmospheric pressure state; can reduce electric motor starting load; and in the time that air pump air pressure exceeds setting pressure, Decompression valves venting, shields.
To achieve these goals, the technological scheme that the utility model adopts is:
A kind of Decompression valves, comprise valve body, valve body front end is provided with suction port, valve rear end is connected with adjusting screw, adjusting screw is provided with air outlet, in valve body, between suction port and air outlet, be equiped with the slide block that can slide along valve interior wall, slip front is provided with pod apertures, slide block rear end is connected with end cap, end cap is provided with pressure release passage, between end cap and adjusting screw, be provided with one-level spring, the sidewall of slide block is provided with overflow hole, in slide block, be equiped with valve rod, the cylinder that valve rod stretches out in outside valve body is provided with jump ring, on valve rod, between jump ring and slide block, be arranged with two-level spring, the end face that valve rod is inserted in slide block is provided with the O type circle for pressure release passage described in shutoff, the inside side walls of valve body is provided with the stepped slot matching with described overflow hole.
Wherein, the front end of described valve body is provided with outside thread, and described adjusting screw is connected with the rear end internal thread of valve body, and described end cap is connected with the rear end internal thread of slide block.Between described valve rod and the inwall of slide block, there is air gap.
Adopt after technique scheme, the advantage that compared to the prior art the utility model had is:
Decompression valves described in the utility model, the suction port of valve body is connected with the cylinder of air pump, air outlet is communicated with outside, in the time that air pump quits work, Decompression valves is normally open under pressure-less state, be that valve rod is shifted to valve body front end under the spring-force driven dual of two-level spring, suction port, pod apertures, pressure release passage and air outlet are communicated with, to discharge the unnecessary gas in cylinder, in the time that air pump starts, along with cylinder pressure increases, the elastic force that overcomes two-level spring under valve rod air pump pressure-acting moves to valve rear end, makes the pressure release passage of the O type circle shutoff end cap on valve rod, and Decompression valves is in closed condition, and air pump is normally worked, in the time of the too high overflow constant-pressure of air pump air pressure, the elastic force that slide block overcomes one-level spring under the effect of air pump pressure moves to valve rear end, overflow hole on slider side wall is communicated with the stepped slot in valve body inside side walls, it is suction port, pod apertures, overflow hole, stepped slot and air outlet are communicated with, Decompression valves starts venting to reduce air pump pressure, along with air pump pressure decreased, slide block moves to valve body front end under the resilient force of one-level spring, stepped slot in overflow hole and valve body inside side walls on slider side wall is intercepted, air pump is replied normal work.This Decompression valves can discharge gas unnecessary in cylinder, when air pump is started, in normal atmosphere pressure condition; reduce electric motor starting load, can save energy energy consumption, and in the time that air pump air pressure exceeds setting pressure; can exit by Decompression valves, shield, increase the service life.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1 is structural representation of the present utility model.
In figure, 1: jump ring; 2: two-level spring; 3: valve rod; 4: slide block; 5:O type circle; 6: valve body; 7: end cap; 8: one-level spring; 9: adjusting screw; 10: suction port; 11: pod apertures; 12: overflow hole; 13: stepped slot: 14: pressure release passage; 15: air outlet.
Embodiment
The following stated is only preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
Embodiment, as shown in Figure 1:
A kind of Decompression valves, comprise valve body 6, the front end of valve body 6 is provided with outside thread (it should be noted that: the front end described in the present embodiment refers to the left end of accompanying drawing, rear end refers to the right-hand member of accompanying drawing), connects for the installation of valve body 6, valve body 6 front ends are provided with suction port 10, the suction port 10 of valve body 6 is connected with the cylinder of air pump, and valve body 6 rear ends are connected with adjusting screw 9, and adjusting screw 9 is connected with the rear end internal thread of valve body 6, adjusting screw 9 is provided with air outlet 15, and air outlet 15 is communicated with outside.
In valve body 6, between suction port 10 and air outlet 15, be equiped with the slide block 4 that can slide along valve body 6 inwalls, slide block 4 front ends are provided with pod apertures 11, slide block 4 rear ends are connected with end cap 7, end cap 7 is connected with the rear end internal thread of slide block 4, end cap 7 is provided with pressure release passage 14, in the time that air pump quits work, Decompression valves is normally open under pressure-less state, be that valve rod 3 is shifted to valve body 6 front ends under the spring-force driven dual of two-level spring 2, suction port 10, pod apertures 11, pressure release passage 14 and air outlet 15 are communicated with, to discharge the unnecessary gas in cylinder.
Between end cap 7 and adjusting screw 9, be provided with one-level spring 8, the position of adjusting screw 9 is adjustable, for regulating the reduction length of one-level spring 8, thus the pressure release pressure of adjusting pressure release valve.
The sidewall of slide block 4 is provided with overflow hole 12, the front end of slide block 4 is provided with the pilot hole that supports valve rod 3, in slide block 4, be equiped with valve rod 3, the cylinder that valve rod 3 stretches out in outside valve body 6 is provided with jump ring 1, on valve rod 3, between jump ring 1 and slide block 4, be arranged with two-level spring 2, the end face that valve rod 3 is inserted in slide block 4 is provided with the O type circle 5 for pressure release passage described in shutoff 14, between the inwall of valve rod 3 and slide block 4, there is air gap, in the time that air pump starts, along with cylinder pressure increases, the elastic force that overcomes two-level spring 2 under valve rod 3 air pump pressure-actings moves to valve body 6 rear ends, make the pressure release passage 14 of the O type circle 5 shutoff end caps 7 on valve rod 3, Decompression valves is in closed condition, air pump is normally worked.
The inside side walls of valve body 6 is provided with the stepped slot 13 matching with described overflow hole 12, and the cooperation here refers to that overflow hole 12 is along with the position that slide block 4 moves to stepped slot 13 makes overflow hole 12 communicate with stepped slot 13.In the time of the too high overflow constant-pressure of air pump air pressure, the elastic force that slide block 4 overcomes one-level spring 8 under the effect of air pump pressure moves to valve body 6 rear ends, overflow hole 12 on slide block 4 sidewalls is communicated with the stepped slot 13 in valve body 6 inside side walls, it is suction port 10, pod apertures 11, overflow hole 12, stepped slot 13 and air outlet 15 are communicated with, Decompression valves starts venting to reduce air pump pressure, along with air pump pressure decreased, slide block 4 moves to valve body 6 front ends under the resilient force of one-level spring 8, overflow hole 12 on slide block 4 sidewalls is blocked with the stepped slot 13 in valve body 6 inside side walls, air pump is replied normal work.
This Decompression valves can discharge gas unnecessary in cylinder, when air pump is started, in normal atmosphere pressure condition; reduce electric motor starting load, can save energy energy consumption, and in the time that air pump air pressure exceeds setting pressure; can exit by Decompression valves, shield, increase the service life.
The above is only preferred embodiments of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (3)
1. a Decompression valves, it is characterized in that: comprise valve body (6), valve body (6) front end is provided with suction port (10), valve body (6) rear end is connected with adjusting screw (9), adjusting screw (9) is provided with air outlet (15), in valve body (6), be positioned at and between suction port (10) and air outlet (15), be equiped with the slide block (4) that can slide along valve body (6) inwall, slide block (4) front end is provided with pod apertures (11), slide block (4) rear end is connected with end cap (7), end cap (7) is provided with pressure release passage (14), between end cap (7) and adjusting screw (9), be provided with one-level spring (8), the sidewall of slide block (4) is provided with overflow hole (12), in slide block (4), be equiped with valve rod (3), valve rod (3) stretches out in the outer cylinder of valve body (6) and is provided with jump ring (1), on valve rod (3), be positioned between jump ring (1) and slide block (4) and be arranged with two-level spring (2), the end face that valve rod (3) is inserted in slide block (4) is provided with the O type circle (5) for pressure release passage described in shutoff (14), the inside side walls of valve body (6) is provided with the stepped slot (13) matching with described overflow hole (12).
2. Decompression valves according to claim 1, it is characterized in that: the front end of described valve body (6) is provided with outside thread, described adjusting screw (9) is connected with the rear end internal thread of valve body (6), and described end cap (7) is connected with the rear end internal thread of slide block (4).
3. Decompression valves according to claim 1, is characterized in that: between described valve rod (3) and the inwall of slide block (4), have air gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420037256.5U CN203703284U (en) | 2014-01-20 | 2014-01-20 | Pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420037256.5U CN203703284U (en) | 2014-01-20 | 2014-01-20 | Pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703284U true CN203703284U (en) | 2014-07-09 |
Family
ID=51053729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420037256.5U Expired - Fee Related CN203703284U (en) | 2014-01-20 | 2014-01-20 | Pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703284U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500797A (en) * | 2014-12-26 | 2015-04-08 | 纽威石油设备（苏州）有限公司 | Underwater exhaust valve |
| CN104964077A (en) * | 2015-05-20 | 2015-10-07 | 天津斯维克阀业有限公司 | Bi-directional flow-limiting valve |
| CN109882582A (en) * | 2019-03-05 | 2019-06-14 | 宁波双驰电子有限公司 | A kind of double clutch gearbox active lubrication valve |
| CN109931426A (en) * | 2017-12-19 | 2019-06-25 | 中航光电科技股份有限公司 | A kind of liquid cooled module unloading crimp head and crimp head is unloaded using this |
| CN112747582A (en) * | 2020-12-31 | 2021-05-04 | 北京中矿博能节能科技有限公司 | Single-stage coal slime drying method |
| CN112762691A (en) * | 2020-12-31 | 2021-05-07 | 北京中矿博能节能科技有限公司 | Multistage coal slime drying method |
| CN112762663A (en) * | 2020-12-31 | 2021-05-07 | 北京中矿博能节能科技有限公司 | Single-stage multi-effect net chain closed type coal slime drying system |
-
2014
- 2014-01-20 CN CN201420037256.5U patent/CN203703284U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500797A (en) * | 2014-12-26 | 2015-04-08 | 纽威石油设备（苏州）有限公司 | Underwater exhaust valve |
| CN104964077A (en) * | 2015-05-20 | 2015-10-07 | 天津斯维克阀业有限公司 | Bi-directional flow-limiting valve |
| CN109931426A (en) * | 2017-12-19 | 2019-06-25 | 中航光电科技股份有限公司 | A kind of liquid cooled module unloading crimp head and crimp head is unloaded using this |
| CN109931426B (en) * | 2017-12-19 | 2021-03-23 | 中航光电科技股份有限公司 | Pressure relief joint and liquid cooling assembly using same |
| CN109882582A (en) * | 2019-03-05 | 2019-06-14 | 宁波双驰电子有限公司 | A kind of double clutch gearbox active lubrication valve |
| CN112747582A (en) * | 2020-12-31 | 2021-05-04 | 北京中矿博能节能科技有限公司 | Single-stage coal slime drying method |
| CN112762691A (en) * | 2020-12-31 | 2021-05-07 | 北京中矿博能节能科技有限公司 | Multistage coal slime drying method |
| CN112762663A (en) * | 2020-12-31 | 2021-05-07 | 北京中矿博能节能科技有限公司 | Single-stage multi-effect net chain closed type coal slime drying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315504 Zhejiang Province, Ningbo city Fenghua District Jiangkou Street South Road No. 25 Patentee after: NINGBO BIDA MACHINERY MANUFACTURING Co.,Ltd. Address before: 315500 Zhejiang city of Fenghua province Jiangkou South Road No. 18 Patentee before: Fenghua Bida Machinery Manufacturing Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20220120 |