CN209414693U - A kind of novel pneumatic check valve - Google Patents
A kind of novel pneumatic check valve Download PDFInfo
- Publication number
- CN209414693U CN209414693U CN201821878411.0U CN201821878411U CN209414693U CN 209414693 U CN209414693 U CN 209414693U CN 201821878411 U CN201821878411 U CN 201821878411U CN 209414693 U CN209414693 U CN 209414693U
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- China
- Prior art keywords
- air inlet
- inlet pipe
- screw thread
- rubber pad
- pipe
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- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to a kind of novel pneumatic check valves.Mainly solve the technical problem that existing Pneumatic check valve energy loss is big, manufacturing cost is high.Its technical solution includes air inlet pipe, rubber pad spool and escape pipe；Internal screw thread is equipped in the inner surface for being located at the exhaust end of air inlet pipe, external screw thread is equipped in the outer surface for being located at the inlet end of escape pipe, the air inlet pipe and an air outlet pipe is connected by internal screw thread with external screw thread, the rubber pad spool is located at the bottom outlet endface of air inlet pipe internal screw thread, and is compressed rubber pad spool by air inlet pipe and an air outlet pipe；The rubber pad spool is made of outer retainer plate and interior active ring, and the outer retainer plate is connected by way of bridge-type structure with interior active ring, and there are gaps between the outer retainer plate and interior active ring.The advantages that the utility model has structure simple, and easy for installation, cracking pressure is small, and sealing performance is more preferable, can be widely applied to pneumatic system.
Description
Technical field
The utility model relates to a kind of novel pneumatic check valves.
Background technique
Check valve is the element for controlling fluid media (medium) one-way flow, and a side of the fluid media (medium) from element may be implemented in it
To flowing to other direction, and the fluid media (medium) of other direction can be prevented to be back to previous direction.Pneumatic check valve is control gas
The control valve of medium one-way flow, is widely used in industrial production.
Current check valve mostly uses greatly the structure type of spring compression spool, the one-way flow of Lai Shixian fluid media (medium).
But in pneumatic system, usual system working pressure is lower, using spring structure check valve when, system needs to overcome bullet always
Spring resistance guarantees the unlatching of check valve, thus will will cause very big energy loss, the pneumatic system not high to entire pressure
For, it will very big influence is caused, what is more, when system pressure is too low, the phenomenon that causing check valve that can not open appearance.
Also, the one-way valve structures of spring structure are complicated, and manufacturing cost is higher, safeguard cumbersome.
Utility model content
Utility model aims to solve existing Pneumatic check valve energy losses, and technology big, that manufacturing cost is high is asked
Topic, provides a kind of novel pneumatic check valve.
To achieve the above object, the technical scheme adopted by the utility model is that:
A kind of novel pneumatic check valve, in which: including air inlet pipe, rubber pad spool and escape pipe；It is being located at air inlet pipe
The inner surface of exhaust end be equipped with internal screw thread, be located at escape pipe inlet end outer surface be equipped with external screw thread, the air inlet pipe and
Escape pipe is connected by internal screw thread with external screw thread, and the rubber pad spool is located at the bottom outlet endface of air inlet pipe internal screw thread, and
And rubber pad spool is compressed by air inlet pipe and an air outlet pipe；The rubber pad spool is made of outer retainer plate and interior active ring,
The outer retainer plate is connected by way of bridge-type structure with interior active ring, between the outer retainer plate and interior active ring there are
Gap.
Preferably, the external screw thread of the internal screw thread and escape pipe of the air inlet pipe is located at the interconnecting piece of air inlet pipe and escape pipe
Point, and the outer diameter of air inlet pipe and escape pipe coupling part is greater than the other parts of air inlet pipe and escape pipe.
Preferably, the rubber pad spool is the round rubber pad with a thickness of 1mm.
Preferably, the overall diameter of the outer retainer plate is identical as the internal thread diameter of air inlet pipe.
Preferably, the diameter of the interior active ring is greater than the diameter of the exhaust outlet of air inlet pipe, and is less than adjacent escape pipe
Air inlet diameter,
Compared with the Pneumatic check valve of traditional spring structure, the utility model is equipped between air inlet pipe and an air outlet pipe
Newly-designed rubber pad spool, therefore the utility model has structure simple, easy for installation, cracking pressure is small, and sealing performance is more
Well, the advantages that pneumatic system being widely applied to.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the main view of rubber pad spool.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of novel pneumatic check valve described in the present embodiment, in which: including air inlet pipe 1, rubber pad
Spool 3 and escape pipe 2；The rubber pad spool 3 is the round rubber pad with a thickness of 1mm.It is being located at the exhaust end of air inlet pipe 1
Inner surface is equipped with internal screw thread, is equipped with external screw thread, the air inlet pipe 1 and escape pipe 2 in the outer surface for being located at the inlet end of escape pipe 2
It is connected by internal screw thread with external screw thread, the rubber pad spool 3 is located at the bottom outlet endface of 1 internal screw thread of air inlet pipe, and leads to
It crosses air inlet pipe 1 and escape pipe 2 compresses rubber pad spool 3；The rubber pad spool 3 is by outer retainer plate 31 and 32 groups of interior active ring
At the outer retainer plate 31 is connected by way of bridge-type structure with interior active ring 32, in the outer retainer plate 31 and interior activity
There are gaps between circle 32.
In the present embodiment, the external screw thread of the internal screw thread Yu escape pipe 2 of the air inlet pipe 1 is located at air inlet pipe and escape pipe
Coupling part, and the outer diameter of air inlet pipe and escape pipe coupling part is greater than the other parts of air inlet pipe and escape pipe.It is described outer
The overall diameter of retainer plate 31 is identical as the internal thread diameter of air inlet pipe 1, and rubber pad spool 3 can be effectively prevent to go out in air inlet pipe 2
Now bias phenomenon；The diameter of the interior active ring 32 is greater than the diameter of the exhaust outlet of air inlet pipe 1, and is less than adjacent escape pipe 2
Air inlet diameter, so as to hinder the direction of exhaust outlet of the interior active ring 32 to air inlet pipe 1 to open, but can be to escape pipe 2
Air inlet direction open.
The particular condition in use of the utility model is as follows: in pneumatic system, when the pressure at 1 end of air inlet pipe is higher than escape pipe
When the pressure at 2 ends, gas medium is entered in cooling gas check valve by the inlet end of air inlet pipe 1, when flowing through rubber pad spool 3, by
In the effect of pressure difference, interior active ring 32 is by the outlet side stress of escape pipe 2, simultaneously because interior active ring 32 is in escape pipe 2 one
Side does not hinder, and causes interior active ring 32 that will open to the direction of escape pipe 2, so that air inlet pipe 1 is made to be connected with escape pipe 2,
Then gas medium can smoothly enter into escape pipe 2 by rubber pad spool 3, and flow into subsequent work element through escape pipe 2,
Realize that the gas of check valve air inlet pipe 1 is flowed to 2 direction of escape pipe.
In pneumatic system, when the pressure at 2 end of escape pipe is higher than the pressure at 1 end of air inlet pipe, due to the effect of pressure difference, interior work
Moving-coil 32 is by the direction stress of air inlet pipe 1, but interior active ring 32 causes interior active ring 32 to be gone out due to the obstruction of air inlet pipe 1
High-pressure fluid medium in tracheae 2 is pressed on the internal screw thread bottom outlet end face of air inlet pipe 1, is fail to open interior active ring 32, is led
Cause air inlet pipe 1 that cannot be connected to escape pipe 2, so that gas medium cannot flow into air inlet pipe 1 through rubber pad spool 3, so as to
Realize one-way flow function of the gas medium from air inlet pipe 1 to escape pipe 2.
Claims (5)
1. a kind of novel pneumatic check valve, it is characterized in that: including air inlet pipe (1), rubber pad spool (3) and escape pipe (2)；In place
It is equipped with internal screw thread in the inner surface of the exhaust end of air inlet pipe (1), is equipped with outer spiral shell in the outer surface for being located at the inlet end of escape pipe (2)
Line, the air inlet pipe (1) and escape pipe (2) are connected by internal screw thread with external screw thread, and the rubber pad spool (3) is located at air inlet
The bottom outlet endface of (1) internal screw thread is managed, and is compressed rubber pad spool (3) by air inlet pipe (1) and escape pipe (2)；It is described
Rubber pad spool (3) is made of outer retainer plate (31) and interior active ring (32), the outer retainer plate (31) and interior active ring (32)
It is connected by way of bridge-type structure, there are gaps between the outer retainer plate (31) and interior active ring (32).
2. a kind of novel pneumatic check valve according to claim 1, it is characterized in that: the internal screw thread of the air inlet pipe (1) with
The external screw thread of escape pipe (2) is located at the coupling part of air inlet pipe and escape pipe, and air inlet pipe and escape pipe coupling part is outer
Diameter is greater than the other parts of air inlet pipe and escape pipe.
3. a kind of novel pneumatic check valve according to claim 1, it is characterized in that: the rubber pad spool (3) is thickness
For the round rubber pad of 1mm.
4. a kind of novel pneumatic check valve according to claim 1, it is characterized in that: the overall diameter of the outer retainer plate (31)
It is identical as the internal thread diameter of air inlet pipe (1).
5. a kind of novel pneumatic check valve according to claim 1, it is characterized in that: the diameter of the interior active ring (32) is big
In the diameter of the exhaust outlet of air inlet pipe (1), and it is less than the diameter of the air inlet of adjacent escape pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821878411.0U CN209414693U (en) | 2018-11-15 | 2018-11-15 | A kind of novel pneumatic check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821878411.0U CN209414693U (en) | 2018-11-15 | 2018-11-15 | A kind of novel pneumatic check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209414693U true CN209414693U (en) | 2019-09-20 |
Family
ID=67934142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821878411.0U Active CN209414693U (en) | 2018-11-15 | 2018-11-15 | A kind of novel pneumatic check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209414693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187935A (en) * | 2021-05-27 | 2021-07-30 | 深圳市伙伴气动精密机械有限公司 | Pneumatic one-way valve and using method thereof |
-
2018
- 2018-11-15 CN CN201821878411.0U patent/CN209414693U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187935A (en) * | 2021-05-27 | 2021-07-30 | 深圳市伙伴气动精密机械有限公司 | Pneumatic one-way valve and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231108 Address after: No.6 Wuluo Street, Comprehensive Reform Demonstration Zone, Xiaodian District, Taiyuan City, Shanxi Province, 030032 Patentee after: Shanxi Hong'an Emergency Technology Co.,Ltd. Address before: No.6, Wuluo street, comprehensive reform demonstration area, Taiyuan City, Shanxi Province Patentee before: SHANXI HONGAN SCIENCE & TECHNOLOGY CO.,LTD. Patentee before: SHANXI RENAN RESCUE TECHNOLOGY Research Institute |
|
| TR01 | Transfer of patent right |