CN221097576U - Piston type swing check valve - Google Patents
Piston type swing check valve Download PDFInfo
- Publication number
- CN221097576U CN221097576U CN202323280769.7U CN202323280769U CN221097576U CN 221097576 U CN221097576 U CN 221097576U CN 202323280769 U CN202323280769 U CN 202323280769U CN 221097576 U CN221097576 U CN 221097576U
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- China
- Prior art keywords
- check valve
- valve body
- outside
- piston
- axostylus axostyle
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- 238000007789 sealing Methods 0.000 claims description 32
- 238000009434 installation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model relates to the technical field of check valves, in particular to a piston type swing check valve which comprises a valve body, a valve cover, a front flange and a rear flange, wherein a rotating shaft is arranged on the inner side of the valve body, a rocker arm is rotatably connected to the outer side of the rotating shaft, a bolt is spirally connected to the inner side of the rocker arm, a check valve opening and closing block is spirally connected to the outer side of the bolt, a limiting piston is fixedly connected to the outer side of the check valve opening and closing block, and a guide plate is fixedly connected to the inner side of the valve body.
Description
Technical Field
The utility model relates to the technical field of check valves, in particular to a piston type swing check valve.
Background
The check valve is a valve with a circular valve clack and can block the backflow of medium by the action of self weight and medium pressure, and belongs to the automatic valve class, namely a check valve, a one-way valve, a reflux valve or an isolation valve, wherein the movement mode of the valve clack is divided into a piston type check valve and a swing type check valve, so that the check valve can be divided into a piston type check valve and a swing type check valve.
The existing swing check valve is opened or closed by the aid of medium flow and force, when the resistance is large, the sealing effect of the check valve opening and closing block on the valve body is poor, and the problem that different degrees of leakage of the medium occur due to poor sealing is solved, so that the piston type swing check valve is provided for the problem.
Disclosure of utility model
The utility model aims to provide a piston type swing check valve so as to solve the problem that medium leaks to different degrees due to poor sealing.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a piston type swing check valve, includes valve body, valve gap, front flange and back flange, the inboard of valve body is provided with the pivot, the outside of pivot is rotated and is connected with the rocking arm, the inboard of rocking arm sets up the screwed connection and has the bolt, the outside screwed connection of bolt has the check valve to open and close the piece, the outside fixedly connected with spacing piston of check valve open and close the piece, the inboard fixedly connected with deflector of valve body, first seal cover has been cup jointed in the outside of deflector, one side fixedly connected with sealing gasket of first seal cover is kept away from to the deflector, keeps away from one side of front flange the outside of deflector is provided with the filter screen, the outside of deflector is provided with the elasticity stay cord that resets.
Preferably, the inboard of valve body is provided with the installation piece, the inboard of installation piece rotates and is connected with the ball, a set of rotate between the ball and be connected with the rotation axostylus axostyle, the one end fixedly connected with stopper of rotation axostylus axostyle, the one end that the stopper was kept away from to the rotation axostylus axostyle is provided with the handle, elastic connection rope has been cup jointed in the outside of rotation axostylus axostyle, elastic connection rope keeps away from the one end and the bolt fixed connection of rotation axostylus axostyle.
Preferably, the outside of the rotation shaft lever is sleeved with a second sealing sleeve, the second sealing sleeve is jointed with the rotation shaft lever, and the second sealing sleeve is jointed with the valve body.
Preferably, the first sealing sleeve is attached to the valve body, the sealing gasket on one side close to the front flange is attached to the limiting piston, and the sealing gasket on one side close to the rear flange is attached to the filter screen.
Preferably, the cross section of the limiting piston is arc-shaped, the limiting piston is attached to the valve body, and two ends of the elastic reset pull rope are fixedly connected with the guide plate and the check valve opening and closing block respectively.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, through the structure formed by the arranged piston, the check valve opening and closing block, the elastic reset pull rope and the like, the sealing effect of the check valve opening and closing block on the valve body is enhanced, the problem that the medium flows out due to insensitive closing of the check valve can be effectively avoided by the elastic reset pull rope, the capability of enhancing the sealing effect of the check valve opening and closing block on the valve body by the piston type swing check valve is realized, and the problem that the medium leaks to different degrees due to loose sealing is solved;
The impurities in the medium can be filtered through the filter screen;
Through the structure of constituteing such as handle, rotation axostylus axostyle and the elastic connection rope that sets up, can drive rotation axostylus axostyle through the handle and rotate, thereby the rotation axostylus axostyle carries out the rolling to the elastic connection rope and can drive the check valve and open and close the piece and rotate, has realized the flow of manual control medium.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the structure of FIG. 1A according to the present utility model;
FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present utility model;
FIG. 4 is a schematic view of the structure of the mounting block of the present utility model;
fig. 5 is a schematic view of the structure of the guide plate of the present utility model.
In the figure: 1. a valve body; 2. a valve cover; 3. a front flange; 4. a rear flange; 5. a rotating shaft; 6. a rocker arm; 7. a bolt; 8. a check valve opening and closing block; 9. a limit piston; 10. a guide plate; 11. a first gland; 12. a sealing gasket; 13. a filter screen; 14. a mounting block; 15. a ball; 16. rotating the shaft lever; 17. a limiting block; 18. a handle; 19. an elastic connecting rope; 20. a second gland; 21. and (5) elastically resetting the pull rope.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
Referring to fig. 1-5, the present utility model provides a technical solution:
The utility model provides a piston swing check valve, including valve body 1, valve gap 2, preceding flange 3 and back flange 4, the inboard of valve body 1 is provided with pivot 5, the outside rotation of pivot 5 is connected with rocking arm 6, the inboard of rocking arm 6 sets up screwed connection has bolt 7, the outside screwed connection of bolt 7 has check valve to open and close piece 8, the outside fixedly connected with spacing piston 9 of check valve to open and close piece 8, the inboard fixedly connected with deflector 10 of valve body 1, first seal cover 11 has been cup jointed in the outside of deflector 10, one side fixedly connected with sealing washer 12 of deflector 10 is kept away from first seal cover 11, the outside of deflector 10 of keeping away from preceding flange 3 one side is provided with filter screen 13, the outside of deflector 10 is provided with elastic reset stay cord 21.
The inside of the valve body 1 is provided with a mounting block 14, the inside of the mounting block 14 is rotationally connected with balls 15, a rotating shaft lever 16 is rotationally connected between a group of balls 15, one end of the rotating shaft lever 16 is fixedly connected with a limiting block 17, one end of the rotating shaft lever 16 far away from the limiting block 17 is provided with a handle 18, the outside of the rotating shaft lever 16 is sleeved with an elastic connecting rope 19, one end of the elastic connecting rope 19 far away from the rotating shaft lever 16 is fixedly connected with a bolt 7, the rotating shaft lever 16 is driven to rotate by the handle 18, at the moment, the rotating shaft lever 16 and a plurality of balls 15 arranged on the inside of the mounting block 14 rotate, the elastic connecting rope 19 is wound on the bolt 7, the rocker arm 6 can be driven to rotate by dragging the bolt 7 through the elastic connecting rope 19, and accordingly the rocker arm 6 drives the check valve opening and closing block 8 and the limiting piston 9 to rotate, and the opening and closing of the check valve block 8 and the limiting piston 9 are manually controlled; the second sealing sleeve 20 is sleeved on the outer side of the rotating shaft rod 16, the second sealing sleeve 20 is attached to the valve body 1, and the arrangement ensures that the second sealing sleeve 20 enhances the tightness between the rotating shaft rod 16 and the valve body 1; the first sealing sleeve 11 is attached to the valve body 1, the sealing gasket 12 on the side close to the front flange 3 is attached to the limiting piston 9, and the sealing gasket 12 on the side close to the rear flange 4 is attached to the filter screen 13; the cross section of the limiting piston 9 is arc-shaped, the limiting piston 9 is attached to the valve body 1, two ends of the elastic reset pull rope 21 are fixedly connected with the guide plate 10 and the check valve opening and closing block 8 respectively, and the arrangement is used for enhancing the tightness between the check valve opening and closing block 8 and the valve body 1.
The working flow is as follows: in the working process of the piston type swing check valve, a valve cover 2 is arranged at the top of a valve body 1, a medium flows to the inner side of the valve body 1 from a front flange 3, the medium is guided by a guide plate 10 and acts on a limiting piston 9, the limiting piston 9 acts on a check valve opening and closing block 8 and a bolt 7, the bolt 7 acts on a rocker arm 6, the rocker arm 6 acts on a rotating shaft 5, so that the rocker arm 6 can drive the limiting piston 9 and the check valve opening and closing block 8 to rotate, the medium flows to the direction of a filter screen 13 from the direction of the front flange 3, the medium continuously flows through the filtration of the filter screen 13, the filter screen 13 can filter impurities in the medium, the medium flows to the direction of a rear flange 4 through the guide plate 10, the flow of the medium is controlled by the guide plate 10, the piston type swing check valve is realized, when the medium flows to the direction of the front flange 3 from the rear flange 4, the rocker arm 6 drives the check valve opening and closing block 8 to reversely rotate, the check valve opening and closing block 8 drives the limiting piston 9 to rotate to close the valve body 1, and an elastic reset pull rope 21 has reset elasticity to the check valve opening and closing block 8, so that the sealing gasket 9 between the check valve opening and closing block 8 and the valve body 1 can be sealed by the guide plate 10, the sealing gasket 10 can be arranged between the guide plate 10 and the valve body 1, and the sealing gasket 10 can be reduced, and the sealing gasket 11 can be arranged between the sealing plate 11 and the valve body; the rotating shaft lever 16 is driven to rotate through the rotating handle 18, at this time, the rotating shaft lever 16 rotates with the plurality of balls 15 arranged on the inner side of the mounting block 14, the rotating shaft lever 16 winds the elastic connecting rope 19, the elastic connecting rope 19 is sleeved on the bolt 7, the rocker arm 6 can be driven to rotate through the elastic connecting rope 19 by dragging the bolt 7, the rocker arm 6 drives the check valve opening and closing block 8 and the limiting piston 9 to rotate, the limiting block 17 limits the elastic connecting rope 19, the opening and closing of the check valve opening and closing block 8 and the limiting piston 9 are manually controlled, a second sealing sleeve 20 is arranged on the outer side of the rotating shaft lever 16, and the sealing performance between the rotating shaft lever 16 and the valve body 1 is enhanced by the second sealing sleeve 20.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a piston formula swing check valve, includes valve body (1), valve gap (2), front flange (3) and rear flange (4), its characterized in that: the inside of valve body (1) is provided with pivot (5), the outside of pivot (5) rotates and is connected with rocking arm (6), the inboard of rocking arm (6) sets up screwed connection has bolt (7), the outside screwed connection of bolt (7) has check valve to open and close piece (8), the outside fixedly connected with spacing piston (9) of check valve to open and close piece (8), the inboard fixedly connected with deflector (10) of valve body (1), first seal cover (11) have been cup jointed in the outside of deflector (10), one side fixedly connected with sealing gasket (12) of deflector (10) keep away from first seal cover (11), the outside of deflector (10) of keeping away from flange (3) one side is provided with filter screen (13), the outside of deflector (10) is provided with elastic reset stay cord (21).
2. A piston type swing check valve according to claim 1, wherein: the inside of valve body (1) is provided with installation piece (14), the inboard rotation of installation piece (14) is connected with ball (15), a set of rotate between ball (15) and be connected with rotation axostylus axostyle (16), the one end fixedly connected with stopper (17) of rotation axostylus axostyle (16), the one end that stopper (17) was kept away from to rotation axostylus axostyle (16) is provided with handle (18), elastic connection rope (19) have been cup jointed in the outside of rotation axostylus axostyle (16), elastic connection rope (19) keep away from the one end and bolt (7) fixed connection of rotation axostylus axostyle (16).
3. A piston type swing check valve according to claim 2, wherein: the outside of rotation axostylus axostyle (16) has cup jointed second seal cover (20), second seal cover (20) laminate with rotation axostylus axostyle (16), second seal cover (20) laminate with valve body (1).
4. A piston type swing check valve according to claim 1, wherein: the sealing gasket (12) close to one side of the front flange (3) is attached to the limiting piston (9), and the sealing gasket (12) close to one side of the rear flange (4) is attached to the filter screen (13).
5. A piston type swing check valve according to claim 1, wherein: the cross section of the limiting piston (9) is arc-shaped, the limiting piston (9) is attached to the valve body (1), and two ends of the elastic reset pull rope (21) are fixedly connected with the guide plate (10) and the check valve opening and closing block (8) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323280769.7U CN221097576U (en) | 2023-12-04 | 2023-12-04 | Piston type swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323280769.7U CN221097576U (en) | 2023-12-04 | 2023-12-04 | Piston type swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221097576U true CN221097576U (en) | 2024-06-07 |
Family
ID=91309366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323280769.7U Active CN221097576U (en) | 2023-12-04 | 2023-12-04 | Piston type swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221097576U (en) |
-
2023
- 2023-12-04 CN CN202323280769.7U patent/CN221097576U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |