CN212536793U - Vacuum one-way valve - Google Patents
Vacuum one-way valve Download PDFInfo
- Publication number
- CN212536793U CN212536793U CN202021374305.6U CN202021374305U CN212536793U CN 212536793 U CN212536793 U CN 212536793U CN 202021374305 U CN202021374305 U CN 202021374305U CN 212536793 U CN212536793 U CN 212536793U
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- China
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- valve body
- valve
- rubber cushion
- cushion block
- cavity
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- Expired - Fee Related
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Abstract
The utility model discloses a vacuum check valve, its technical scheme main points are: the valve comprises a first valve body and a second valve body which are detachably connected, wherein a first valve cavity is formed in the first valve body, a second valve cavity is formed in the second valve body, an air inlet communicated with the first valve cavity is formed in the end part of the first valve body, an air outlet communicated with the second valve cavity is formed in the end part of the second valve body, a first rubber cushion block is fixed on one side of the first valve body close to the second valve body, a flow channel for communicating the first valve cavity with the second valve cavity is formed between the first rubber cushion block and the first valve body, a through hole is formed in the center of the first rubber cushion block, a plug column is connected in the through hole in a sliding mode, and a second rubber cushion block is fixed outside the plug column; the vacuum one-way valve has the advantages of convenient production and manufacture and longer service life.
Description
Technical Field
The utility model relates to a valve field, in particular to vacuum check valve.
Background
The vacuum check valve is a valve type with one-way conduction, and is widely used in various pipelines.
The prior Chinese patent with publication number CN107984273A discloses a vacuum one-way valve, which comprises a valve body with a through cavity, wherein an external thread is arranged on the outer surface of the valve body, a gas flow passage is formed in the cavity, a valve core for sealing the cavity is arranged in the cavity, and the top end of the valve core is fixedly connected with a magnetic body.
The vacuum check valve has the advantages of good sealing performance, but the vacuum check valve still has some disadvantages, such as: the vacuum one-way valve has the defect of difficult support during production, and the valve core mostly adopts the form of a membrane, so that the service life is short.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned in the background art, the utility model aims at providing a vacuum check valve to solve the problem mentioned in the background art.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a vacuum one-way valve comprises a first valve body and a second valve body which are detachably connected, wherein a first valve cavity is formed in the first valve body, a second valve cavity is formed in the second valve body, an air inlet communicated with the first valve cavity is formed in the end portion of the first valve body, an air outlet communicated with the second valve cavity is formed in the end portion of the second valve body, a first rubber cushion block is fixed at one side, close to the second valve body, of the first valve body, a flow channel communicated with the first valve cavity and the second valve cavity is formed between the first rubber cushion block and the first valve body, a through hole is formed in the center of the first rubber cushion block, a plug column is connected in the through hole in a sliding mode, a second rubber cushion block is fixed outside the plug column, and a sealing snap ring used for sealing the flow channel is fixed at one side, close to the first rubber cushion block, and a sealing limiting ring is fixed in the second valve body, and a return spring is connected between the sealing limiting ring and the second rubber cushion block.
By adopting the technical scheme, the vacuum one-way valve is formed by assembling the first valve body and the second valve body, the principle of valve conduction is that a flow channel between the first valve cavity and the second valve cavity is conducted, when air is introduced through the air inlet, the airflow can impact the first valve cavity, so that the pressure in the first valve cavity is larger than that in the second valve cavity, the plug is made to slide, the return spring is driven to compress, the sealing snap ring on the first rubber cushion block and the second rubber cushion block is driven to separate, the flow channel is opened to realize conduction, when the air inlet stops introducing air, the second rubber cushion block and the plug are driven to return under the action of the return spring to close the flow channel, and the passage is disconnected; because this vacuum check valve's main part comprises first valve body and second valve body, and the runner is opened and close and is relied on chuck and first rubber cushion to realize, and the chuck can conveniently be dismantled from second rubber cushion, so this valve has the convenient advantage of manufacturing to longer life has.
Preferably, one surface of the second rubber cushion block, which is close to the first rubber cushion block, is provided with a first inner sunken groove, and the sealing clamp ring is in threaded connection with the first inner sunken groove.
Through adopting above-mentioned technical scheme, through with sealed snap ring threaded connection can conveniently realize sealed snap ring and second rubber cushion's installation fixed in the heavy groove in first.
Preferably, a second inner sunken groove is formed in one surface, close to the second rubber cushion block, of the first rubber cushion block, and the sealing snap ring is embedded into the second inner sunken groove when the flow channel is closed.
Through adopting above-mentioned technical scheme, can make when the runner is closed, sealed snap ring is in comparatively stable gomphosis state through seting up the heavy groove in the second.
Preferably, the return spring is a disc spring, the second rubber cushion block is provided with a plurality of steps, and one end of the return spring abuts against the steps on the second rubber cushion block.
Through adopting above-mentioned technical scheme, adopt disc spring with return spring to make return spring have great elasticity and the firm nature of installation.
Preferably, the first valve body is provided with a convex ring part integrally formed with the first valve body at the flow passage, and a positive section sideline of the convex ring part is arc-shaped.
Through adopting above-mentioned technical scheme, the setting of bulge loop portion can increase the sealed effect when the runner is closed.
Preferably, the first valve body and the second valve body are fixedly connected through a key.
Through adopting above-mentioned technical scheme, can increase the firm nature that first valve body and second valve body are fixed through the mode that adopts the key-type connection.
Preferably, the air inlet and the air outlet are respectively provided with a thread.
Through adopting above-mentioned technical scheme, the screw thread of air inlet and gas outlet department can conveniently be connected with external pipeline.
Preferably, a blocking ring sleeve is fixed in the first valve body, and the plunger is connected in the blocking ring sleeve in a sliding manner.
Through adopting above-mentioned technical scheme, utilize the fender ring cover can carry out spacingly to the stroke of stopper post.
To sum up, the utility model discloses mainly have following beneficial effect:
the vacuum one-way valve is formed by assembling a first valve body and a second valve body, the principle of valve conduction is that a flow channel between a first valve cavity and a second valve cavity is conducted, when air is fed through an air inlet, airflow can impact the first valve cavity, so that the pressure in the first valve cavity is larger than that in the second valve cavity, a plug is further made to slide, a return spring is driven to compress, and then a sealing snap ring on a first rubber cushion block and a sealing snap ring on a second rubber cushion block are driven to separate, the flow channel is opened to realize conduction, when the air inlet stops feeding air, the second rubber cushion block and the plug are driven to return under the action of the return spring to close the flow channel, and the disconnection of a passage is realized; because this vacuum check valve's main part comprises first valve body and second valve body, and the runner is opened and close and is relied on chuck and first rubber cushion to realize, and the chuck can conveniently be dismantled from second rubber cushion, so this valve has the convenient advantage of manufacturing to longer life has.
Drawings
FIG. 1 is a structural sectional view of a vacuum check valve;
fig. 2 is a schematic structural view of the vacuum check valve.
Reference numerals: 1. a first valve body; 2. a second valve body; 3. a first valve chamber; 4. a second valve cavity; 5. an air inlet; 6. an air outlet; 7. a first rubber cushion block; 8. a flow channel; 9. perforating; 10. a plug; 11. a second rubber cushion block; 12. sealing the snap ring; 13. a seal confinement ring; 14. a return spring; 15. a first inner sink tank; 16. a second inner sink groove; 17. a projecting ring portion; 18. keep off the ring cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 and 2, a vacuum check valve comprises a first valve body 1 and a second valve body 2 which are detachably connected, wherein a first valve cavity 3 is formed in the first valve body 1, a second valve cavity 4 is formed in the second valve body 2, an air inlet 5 communicated with the first valve cavity 3 is formed in the end portion of the first valve body 1, an air outlet 6 communicated with the second valve cavity 4 is formed in the end portion of the second valve body 2, a first rubber cushion block 7 is fixed at one side of the first valve body 1 close to the second valve body 2, a flow channel 8 communicating the first valve cavity 3 with the second valve cavity 4 is formed between the first rubber cushion block 7 and the first valve body 1, a through hole 9 is formed in the center of the first rubber cushion block 7, a plug 10 is slidably connected in the through hole 9, a second rubber cushion block 11 is fixed outside the plug 10, a sealing snap ring 12 for sealing the flow channel 8 is fixed at one side of the second rubber cushion block 11 close to the first rubber block 7, a sealing limiting ring 13 is fixed in the second valve body 2, and a return spring 14 is connected between the sealing limiting ring 13 and the second rubber cushion block 11.
Referring to fig. 1 and 2, the vacuum check valve is formed by assembling a first valve body 1 and a second valve body 2, the principle of valve conduction is that a flow channel 8 between a first valve cavity 3 and a second valve cavity 4 is conducted, when air is fed through an air inlet 5, air flow can impact the first valve cavity 3, so that the pressure in the first valve cavity 3 is greater than that in the second valve cavity 4, a plug 10 slides and drives a return spring 14 to compress, and further drives a first rubber cushion block 7 and a sealing snap ring 12 on a second rubber cushion block 11 to separate, so that the flow channel 8 is opened to realize conduction, and when the air inlet 5 stops feeding air, the second rubber cushion block 11 and the plug 10 are driven to return under the action of the return spring 14 to close the flow channel 8, and realize passage disconnection; because this vacuum check valve's main part comprises first valve body 1 and second valve body 2, and runner 8 is opened and close and is relied on chuck and first rubber cushion 7 to realize, and the chuck can conveniently be dismantled from second rubber cushion 11, so this valve has the convenient advantage of manufacturing to longer life has.
Referring to fig. 1 and 2, a first inner sunken groove 15 is formed in one surface, close to the first rubber cushion block 7, of the second rubber cushion block 11, the sealing snap ring 12 is in threaded connection with the first inner sunken groove 15, and the sealing snap ring 12 and the second rubber cushion block 11 can be conveniently installed and fixed by connecting the sealing snap ring 12 in the first inner sunken groove 15 in a threaded manner; the first rubber cushion block 7 is provided with a second inner sunken groove 16 on one surface close to the second rubber cushion block 11, the sealing snap ring 12 is embedded into the second inner sunken groove 16 when the flow channel 8 is closed, and the sealing snap ring 12 is in a stable embedded state when the flow channel 8 is closed by providing the second inner sunken groove 16.
Referring to fig. 1 and 2, the return spring 14 is a disc spring, the second rubber pad 11 has a plurality of steps, one end of the return spring 14 abuts against the steps on the second rubber pad 11, and the disc spring is adopted as the return spring 14, so that the return spring 14 has a larger elastic force and is firmly mounted; wherein first valve body 1 has the bulge loop portion 17 with first valve body 1 integrated into one piece in runner 8 department, and the positive cross-section sideline of bulge loop portion 17 is the arc, and the setting of bulge loop portion 17 can increase the sealed effect when runner 8 is closed.
Referring to fig. 1 and 2, in which the first valve body 1 and the second valve body 2 are fixed by key connection, the fixing firmness of the first valve body 1 and the second valve body 2 can be increased by adopting the key connection; wherein, the air inlet 5 and the air outlet 6 are respectively provided with a thread, and the threads at the air inlet 5 and the air outlet 6 can be conveniently connected with an external pipeline; wherein a stop ring sleeve 18 is fixed in the first valve body 1, the plug 10 is connected in the stop ring sleeve 18 in a sliding way, and the stop ring sleeve 18 can be used for limiting the running stroke of the plug 10.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A vacuum check valve characterized in that: comprises a first valve body (1) and a second valve body (2) which are connected in a detachable manner, wherein a first valve cavity (3) is formed in the first valve body (1), a second valve cavity (4) is formed in the second valve body (2), an air inlet (5) communicated with the first valve cavity (3) is formed in the end part of the first valve body (1), an air outlet (6) communicated with the second valve cavity (4) is formed in the end part of the second valve body (2), a first rubber cushion block (7) is fixed on one side of the first valve body (1) close to the second valve body (2), a flow channel (8) communicating the first valve cavity (3) with the second valve cavity (4) is formed between the first rubber cushion block (7) and the first valve body (1), a through hole (9) is formed in the center of the first rubber cushion block (7), and a plug column (10) is connected in the through hole (9) in a sliding manner, the outside of plunger (10) is fixed with second rubber cushion (11), second rubber cushion (11) are being close to one side of first rubber cushion (7) is fixed with runner (8) confined sealed snap ring (12), second valve body (2) internal fixation has sealed limit ring (13), sealed limit ring (13) with be connected with return spring (14) between second rubber cushion (11).
2. A vacuum check valve as defined in claim 1, wherein: one surface, close to the first rubber cushion block (7), of the second rubber cushion block (11) is provided with a first inner sunken groove (15), and the sealing clamp ring (12) is in threaded connection with the first inner sunken groove (15).
3. A vacuum check valve as defined in claim 2, wherein: one surface of the first rubber cushion block (7) close to the second rubber cushion block (11) is provided with a second inner sunken groove (16), and the sealing snap ring (12) is embedded into the second inner sunken groove (16) when the flow channel (8) is closed.
4. A vacuum check valve as defined in claim 1, wherein: the return spring (14) is a disc spring, a plurality of steps are arranged on the second rubber cushion block (11), and one end of the return spring (14) abuts against the steps on the second rubber cushion block (11).
5. A vacuum check valve as defined in claim 1, wherein: the first valve body (1) is provided with a convex ring part (17) which is integrally formed with the first valve body (1) at the flow channel (8), and the positive section sideline of the convex ring part (17) is arc-shaped.
6. A vacuum check valve as defined in claim 1, wherein: and the first valve body (1) and the second valve body (2) are fixedly connected through keys.
7. A vacuum check valve as defined in claim 1, wherein: the air inlet (5) and the air outlet (6) are respectively provided with threads.
8. A vacuum check valve as defined in claim 1, wherein: a blocking ring sleeve (18) is fixed in the first valve body (1), and the plug column (10) is connected in the blocking ring sleeve (18) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374305.6U CN212536793U (en) | 2020-07-14 | 2020-07-14 | Vacuum one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021374305.6U CN212536793U (en) | 2020-07-14 | 2020-07-14 | Vacuum one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212536793U true CN212536793U (en) | 2021-02-12 |
Family
ID=74517115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021374305.6U Expired - Fee Related CN212536793U (en) | 2020-07-14 | 2020-07-14 | Vacuum one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212536793U (en) |
-
2020
- 2020-07-14 CN CN202021374305.6U patent/CN212536793U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 Termination date: 20210714 |