CN212004404U - High-performance zero-leakage backflow-prevention sealing structure of check valve - Google Patents
High-performance zero-leakage backflow-prevention sealing structure of check valve Download PDFInfo
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- CN212004404U CN212004404U CN201922400598.4U CN201922400598U CN212004404U CN 212004404 U CN212004404 U CN 212004404U CN 201922400598 U CN201922400598 U CN 201922400598U CN 212004404 U CN212004404 U CN 212004404U
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- backflow
- valve body
- leakage
- sealing mechanism
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- 238000007789 sealing Methods 0.000 title claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000000694 effects Effects 0.000 abstract description 8
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000151 anti-reflux effect Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a zero leakage anti-return's of high performance seal structure of check valve, including valve body, first sealing mechanism and second sealing mechanism, the both ends of valve body all are provided with the flange, first sealing mechanism and second sealing mechanism all set up the inside at the valve body, first sealing mechanism comprises mounting bracket, the first spring of a plurality of, sphere leak protection plate, the inside of valve body is provided with the mounting bracket, one side of mounting bracket is provided with the first spring of a plurality of, the other end of first spring is provided with sphere leak protection plate, second sealing mechanism comprises first anti-return plate, second anti-return plate, limiting plate, mounting panel and second spring, the inside upper end activity of keeping away from sphere leak protection plate one side of valve body is provided with first anti-return plate. The utility model discloses simple structure, reasonable in design, sealed effect is better, prevents effectively to leak, and the while is dual prevents to flow back, prevents that the backward flow effect is better.
Description
Technical Field
The utility model relates to a check valve technical field specifically is a zero seal structure of leaking backflow prevention of high performance of check valve.
Background
The check valve is a valve whose opening and closing part is a circular valve clack and acts by its own weight and medium pressure to block the medium from flowing backwards, belonging to the automatic valve class, also called check valve, one-way valve, backflow valve or isolating valve, the medium flows in from the inlet end and flows out from the outlet end. When the inlet pressure is greater than the sum of the weight of the valve clack and the flow resistance of the valve clack, the valve is opened, otherwise, the valve is closed when the medium flows backwards, but the existing check valve has large resistance and poor sealing performance when closed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a zero leakage backflow prevention's of high performance seal structure of check valve to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a high-performance zero-leakage anti-backflow sealing structure of a check valve comprises a valve body, a first sealing mechanism and a second sealing mechanism, wherein flanges are arranged at two ends of the valve body, the first sealing mechanism and the second sealing mechanism are arranged inside the valve body, the first sealing mechanism consists of a mounting frame, a plurality of first springs and a spherical body anti-leakage plate, the mounting frame is arranged inside the valve body, the plurality of first springs are arranged on one side of the mounting frame, the spherical body anti-leakage plate is arranged at the other end of each first spring, the second sealing mechanism consists of a first anti-backflow plate, a second anti-backflow plate, a limiting plate, a mounting plate and a second spring, the first anti-backflow plate is movably arranged at the upper end of one side, far away from the spherical body anti-leakage plate, inside the valve body, the second anti-backflow plate is movably arranged at the lower end of the first anti-backflow plate, the anti-backflow valve is characterized in that limiting plates are arranged on one sides, close to the spherical body anti-leakage plate, of the first anti-backflow plate at the upper end and the lower end inside the valve body, mounting plates are arranged on one sides, away from the spherical body anti-leakage plate, of the first anti-backflow plate at the upper end and the lower end inside the valve body, second springs are arranged on the mounting plates, and the other ends of the second springs are arranged on the first anti-backflow plate and the second anti-backflow plate.
Preferably, a plurality of limiting columns are arranged at one end, close to the spherical body leak-proof plate, in the valve body, and a plurality of limiting grooves matched with the limiting columns are formed in the spherical body leak-proof plate.
Preferably, the number of the first springs is at least three.
Preferably, the first anti-backflow plate and the second anti-backflow plate are arranged on the same side of the valve body.
Preferably, one side of the limiting plate close to the first anti-backflow plate is provided with an inwards concave arc surface.
Preferably, the length of the mounting plate is one third of the length of the first anti-backflow plate and the second anti-backflow plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model has the advantages that the first sealing mechanism is arranged in the valve body and consists of the mounting frame, the first springs and the spherical body leak-proof plate, the sealing performance is good through the first sealing mechanism, and the backflow of the fluid can be effectively prevented;
2. the utility model discloses a be provided with the sealed machine of second, second sealing mechanism sets up in the inside of valve body, and second sealing mechanism comprises first anti-reflux board, second anti-reflux board, limiting plate, mounting panel and second spring, through second sealing mechanism's effect, can further play the effect of preventing backward flow well, increases the holistic gas tightness of valve body, and it is better to prevent the backward flow effect.
Drawings
Fig. 1 is a schematic view of the internal structure of a high-performance zero-leakage backflow-preventing sealing structure valve body of the check valve of the present invention;
FIG. 2 is a front view of the high performance zero leakage anti-backflow sealing structure of the check valve of the present invention;
FIG. 3 is a side view of a high performance zero leakage anti-backflow sealing structure of a check valve with a spherical anti-leakage plate of the present invention;
fig. 4 is the local elevation view of the first anti-backflow plate of the high-performance zero-leakage anti-backflow sealing structure of the check valve.
In the figure: 1. a valve body; 101. a flange; 102. a limiting column; 2. a first sealing mechanism; 21. a mounting frame; 22. a first spring; 23. a spherical body leak-proof plate; 231. a limiting groove; 3. a second sealing mechanism; 31. a first anti-backflow plate; 32. a second anti-backflow plate; 33. a limiting plate; 34. mounting a plate; 35. a second spring.
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.
Referring to fig. 1-4, the present invention provides a technical solution: a high-performance zero-leakage anti-backflow sealing structure of a check valve comprises a valve body 1, a first sealing mechanism 2 and a second sealing mechanism 3, wherein flanges 101 are welded at two ends of the valve body 1, the first sealing mechanism 2 and the second sealing mechanism 3 are installed inside the valve body 1, the first sealing mechanism 2 comprises an installation frame 21, a plurality of first springs 22 and a spherical anti-leakage plate 23, the installation frame 21 is welded inside the valve body 1, the plurality of first springs 22 are installed at one side of the installation frame 21, the spherical anti-leakage plate 23 is installed at the other end of the first springs 22, the second sealing mechanism 3 comprises a first anti-backflow plate 31, a second anti-backflow plate 32, a limiting plate 33, an installation plate 34 and a second spring 35, the first anti-backflow plate 31 is installed at the upper end, far away from the spherical anti-leakage plate 23, of the inside of the valve body 1, the second anti-backflow plate 32 is installed at the lower end of the first anti-backflow plate 31 through a portal frame, limiting plates 33 are welded to the upper end and the lower end of the interior of the valve body 1 on one side, close to the spherical body leakage-proof plate 23, of the first backflow-proof plate 31, mounting plates 34 are welded to the upper end and the lower end of the interior of the valve body 1 on one side, far away from the spherical body leakage-proof plate 23, of the first backflow-proof plate 31, mounting plates 34 are welded to the upper end and the lower end of the interior of the valve body 1, second springs 35 are mounted on the mounting plates 34, and the other ends of the second springs 35 are mounted on the.
The inside welding of one end that is close to sphere leak protection plate 23 of valve body 1 has a plurality of spacing post 102, is provided with a plurality of and spacing post 102 assorted spacing groove 231 on the sphere leak protection plate 23, is favorable to guaranteeing that sphere leak protection plate 23 can the steady movement, prevents that the atress is inhomogeneous to one side skew.
The number of the first springs 22 is at least three, which is beneficial to provide a certain elastic force and ensure uniform elastic force.
The ends of the first anti-backflow plate 31 and the second anti-backflow plate 32 close to the side wall of the valve body 1 are polished to spherical surfaces, so that the first anti-backflow plate and the second anti-backflow plate are in contact with the side wall of the valve body 1 better.
One side of the limiting plate 33 close to the first anti-backflow plate 31 is set to be an inner concave arc surface, which is beneficial to ensuring the normal movement of the first anti-backflow plate 31 and the second anti-backflow plate 32.
The length of the mounting plate 34 is one third of the length of the first anti-return plate 31 and the second anti-return plate 32, which is beneficial to ensuring the maximum rotation of the first anti-return plate 31 and the second anti-return plate 32 and ensuring the fluid flux.
The working principle is as follows: in the device, a first sealing mechanism 2 and a second sealing mechanism 3 are arranged, the first sealing mechanism 2 is arranged inside a valve body 1, the first sealing mechanism 2 consists of a mounting frame 21, a plurality of first springs 22 and a spherical body leak-proof plate 23, the spherical body leakage-proof plate 23 is supported by the first spring 22, the fluid can only flow into the other side from one side, the sealing performance is good, the fluid can be effectively prevented from flowing back, the second sealing mechanism 3 is arranged in the valve body 1, the second sealing mechanism 3 is composed of a first backflow-proof plate 31, a second backflow-proof plate 32, a limiting plate 33, a mounting plate 34 and a second spring 35, the moving directions of the first and second anti-reflux plates 31 and 32 are defined by the stopper plate 33 and the second spring 35, can further play the backflow prevention effect well, increase the holistic gas tightness of valve body 1, prevent that the backward flow effect is better.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (6)
1. The utility model provides a zero leakage anti-return's of high performance seal structure of check valve, includes valve body (1), first sealing mechanism (2) and second sealing mechanism (3), its characterized in that: the anti-backflow valve is characterized in that flanges (101) are arranged at two ends of the valve body (1), the first sealing mechanism (2) and the second sealing mechanism (3) are arranged inside the valve body (1), the first sealing mechanism (2) is composed of a mounting frame (21), a plurality of first springs (22) and a spherical body anti-leakage plate (23), the mounting frame (21) is arranged inside the valve body (1), the plurality of first springs (22) are arranged on one side of the mounting frame (21), the spherical body anti-leakage plate (23) is arranged at the other end of each first spring (22), the second sealing mechanism (3) is composed of a first anti-backflow plate (31), a second anti-backflow plate (32), a limiting plate (33), a mounting plate (34) and a second spring (35), and the first anti-backflow plate (31) is movably arranged at the upper end, far away from one side of the spherical body anti-leakage plate (23), inside the valve body (1), the anti-backflow valve is characterized in that a second anti-backflow plate (32) is movably arranged at the lower end of a first anti-backflow plate (31) inside the valve body (1), a limiting plate (33) is arranged at one side, close to a spherical body anti-leakage plate (23), of the first anti-backflow plate (31) at the upper end and the lower end of the valve body (1), a mounting plate (34) is arranged at one side, away from the spherical body anti-leakage plate (23), of the first anti-backflow plate (31) at the upper end and the lower end of the valve body (1), a second spring (35) is arranged on the mounting plate (34), and the other end of the second spring (35) is arranged on the first anti-backflow plate (31) and the second anti-backflow plate (32).
2. The high-performance zero-leakage backflow-preventing sealing structure of the check valve according to claim 1, wherein: a plurality of limiting columns (102) are arranged at one end, close to the spherical body leak-proof plate (23), of the interior of the valve body (1), and a plurality of limiting grooves (231) matched with the limiting columns (102) are formed in the spherical body leak-proof plate (23).
3. The high-performance zero-leakage backflow-preventing sealing structure of the check valve according to claim 1, wherein: the number of the first springs (22) is at least three.
4. The high-performance zero-leakage backflow-preventing sealing structure of the check valve according to claim 1, wherein: one ends of the first anti-backflow plate (31) and the second anti-backflow plate (32) close to the side wall of the valve body (1) are both provided with spherical surfaces.
5. The high-performance zero-leakage backflow-preventing sealing structure of the check valve according to claim 1, wherein: one side of the limiting plate (33) close to the first anti-backflow plate (31) is provided with an inwards concave arc surface.
6. The high-performance zero-leakage backflow-preventing sealing structure of the check valve according to claim 1, wherein: the length of the mounting plate (34) is one third of the length of the first anti-backflow plate (31) and the second anti-backflow plate (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922400598.4U CN212004404U (en) | 2019-12-27 | 2019-12-27 | High-performance zero-leakage backflow-prevention sealing structure of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922400598.4U CN212004404U (en) | 2019-12-27 | 2019-12-27 | High-performance zero-leakage backflow-prevention sealing structure of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212004404U true CN212004404U (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922400598.4U Expired - Fee Related CN212004404U (en) | 2019-12-27 | 2019-12-27 | High-performance zero-leakage backflow-prevention sealing structure of check valve |
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| Country | Link |
|---|---|
| CN (1) | CN212004404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116138528A (en) * | 2022-10-27 | 2023-05-23 | 深圳市第三人民医院 | Heat extraction assembly and protective clothing |
-
2019
- 2019-12-27 CN CN201922400598.4U patent/CN212004404U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116138528A (en) * | 2022-10-27 | 2023-05-23 | 深圳市第三人民医院 | Heat extraction assembly and protective clothing |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |