CN213064754U - Self sealss swing check valve - Google Patents
Self sealss swing check valve Download PDFInfo
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- CN213064754U CN213064754U CN202020840210.2U CN202020840210U CN213064754U CN 213064754 U CN213064754 U CN 213064754U CN 202020840210 U CN202020840210 U CN 202020840210U CN 213064754 U CN213064754 U CN 213064754U
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- check valve
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Abstract
The utility model relates to a check valve technical field specifically is a self sealss swing check valve, the lateral wall that the vertical passageway of valve body is close to inlet channel rotates through the round pin axle and is connected with the rocker, be provided with self sealss structure on the valve clack. The check valve is opened, the valve clack is rotated anticlockwise under the impact force effect that the liquid flows and is opened, the valve clack is used on the buffer block, buffer block rebound under the elastic force flexible effect of spring, reduce the impact to the buffer block, the check valve is closed, the valve clack uses the round pin axle to rotate clockwise as the center under the action of gravity of self gravity and balancing weight and covers the disk seat, under the action of gravity, the elastic gasket at first gets into in the ring channel, the loss impact force in the twinkling of an eye, then under the action of gravity, the elastic gasket gets into in the ring channel completely, at this moment, the sealing ring gets into and forms sealedly in the seal groove, can not cause the rigid contact of valve clack and disk seat.
Description
Technical Field
The utility model relates to a check valve technical field specifically is a self sealss swing check valve.
Background
The check valve is also called a one-way valve or a check valve and is used for preventing media in the pipeline from flowing backwards. The bottom valve of water pump suction valve also belongs to check valve class. The valve, in which the opening and closing member is automatically opened or closed by the flow and force of the medium to prevent the medium from flowing backwards, is called a check valve. The check valve belongs to the automatic valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to one direction to prevent the accident. The check valve can generate large force in the opening and closing moment, the valve clack impacts the valve seat and the limiting mechanism, the valve clack, the valve seat and the limiting mechanism can be damaged for a long time, the sealing effect of the check valve is reduced, the service life is prolonged, and therefore the self-sealing swing check valve is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a self sealss swing check valve to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a self sealss swing check valve, includes the valve body and through screw rod and valve body fixed seal's valve gap, is equipped with communicating inlet channel, drain passage in the valve body and is located and forms between valve body inlet channel and the drain passage with the communicating vertical passageway of valve gap, the valve body is located inlet channel department and installs the disk seat, the lateral wall that the vertical passageway of valve body is close to inlet channel rotates through the round pin axle and is connected with the rocker, the other end of rocker is connected with the valve clack that matches with the disk seat, be provided with self sealss structure on the valve clack.
Preferably, the valve seat is of an annular structure, and the inner wall of one side of the annular structure, which is close to the liquid inlet channel, is of an arc-shaped structure.
Preferably, the self-sealing structure comprises a sealing ring connected above the joint of the valve clack and the rocker, the sealing ring is connected to the valve clack and close to the valve seat, and the elastic gasket is connected to the valve clack and close to the valve seat, and the diameter of the elastic gasket is larger than that of the sealing ring.
Preferably, a sealing groove matched with the sealing ring to form sealing is formed in the inner side wall of one end, close to the valve clack, of the valve seat.
Preferably, the side wall of one end of the valve seat close to the valve clack is provided with an annular groove matched with the elastic gasket to form a buffering effect.
Preferably, the section width of the annular groove is in a trapezoidal structure with a large inner part and a small outer part, and the section of the elastic gasket is in a trapezoidal structure matched with the annular groove and used for preventing the valve clack from being separated from the valve seat after being inserted into the annular groove.
Preferably, the lateral wall fixedly connected with position that the vertical passageway of valve body was kept away from inlet channel is higher than the stopper of round pin axle, the lower extreme of stopper has the valve clack upwards to rotate rather than the buffer block of buffering collision when the valve body is opened through spring coupling.
Compared with the prior art, the beneficial effects of the utility model are that: the self-sealing swing check valve has the advantages that when liquid in an external pipeline flows, the check valve is opened, the valve clack is opened by anticlockwise rotation under the action of the impact force of the flowing liquid, the valve clack acts on the buffer block, the buffer block moves upwards under the elastic expansion action of the spring, the impact on the buffer block is reduced, the valve clack cannot be damaged, the service life of equipment is prolonged, when the flowing of the liquid in the external pipeline stops, the check valve is closed, the valve clack rotates clockwise around a pin shaft under the action of self gravity and the gravity of a balancing weight to cover a valve seat, under the action of gravity, the elastic gasket firstly enters the annular groove to cause extrusion and loss instant impact force, then under the action of gravity, the elastic gasket completely enters the annular groove, at the moment, the sealing ring enters the sealing groove to form sealing, the rigid contact between the valve clack, the elastic gasket entering the annular groove limits the position of the valve clack not to move, and in addition, the elastic gasket plays a role in secondary sealing and has strong practicability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of part a of the present invention.
In the figure: the valve comprises a valve body 1, a liquid inlet channel 11, a liquid outlet channel 12, a valve cover 2, a valve seat 3, a valve clack 4, a balancing weight 41, a sealing ring 42, an elastic washer 43, a rocker 5, a pin shaft 6, a limiting block 7, a spring 71 and a buffer block 72.
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. 1-2, the present invention provides a technical solution:
the utility model provides a self sealss swing check valve, including valve body 1 and through screw rod and 1 fixed seal's of valve body valve gap 2, be equipped with communicating inlet channel 11 in the valve body 1, outlet channel 12 and be located and form between 1 inlet channel 11 of valve body and the outlet channel 12 with the communicating vertical passageway of valve gap 2, valve body 1 is located inlet channel 11 department and installs disk seat 3, disk seat 3 is the annular structure, and one side inner wall that the annular structure is close to inlet channel 11 is circular-arc structure, reduce the liquid stream and strike, extension equipment life, the lateral wall that 1 vertical passageway of valve body is close to inlet channel 11 rotates through round pin axle 6 and is connected with rocker 5, rocker 5's the other end is connected with the valve clack 4 that matches with disk seat 3, be provided with.
Self sealss structure is including connecting the top that valve clack 4 is located rocker 5 and valve clack 4 junction, connect the sealing ring 42 that valve clack 4 is close to disk seat 3 and connect the elastic washer 43 that valve clack 4 is close to disk seat 3, and the diameter of elastic washer 43 is greater than the diameter of sealing ring 42, disk seat 3 is close to the one end inside wall of valve clack 4 and has been seted up and forms sealed seal groove with sealing ring 42 matching, disk seat 3 is close to the one end lateral wall of valve clack 4 and has seted up the ring channel that forms cushioning effect with elastic washer 43 matching, the cross-sectional width of ring channel is big-end-up's trapezoidal structure in the interior, the cross-section of elastic washer 43 is the trapezoidal structure.
The side wall of the vertical channel of the valve body 1 far away from the liquid inlet channel 11 is fixedly connected with a limiting block 7 with the position higher than that of the pin shaft 6, and the lower end of the limiting block 7 is connected with a buffer block 72 with which the valve clack 4 rotates upwards to buffer collision when the valve body 1 is opened through a spring 71.
The self-sealing swing check valve is characterized in that when liquid in an external pipeline flows, the check valve is opened, the valve flap 4 is opened by anticlockwise rotation under the action of impact force of the flowing liquid, the valve flap 4 acts on the buffer block 72, the buffer block 72 moves upwards under the elastic expansion action of the spring 71, the impact on the buffer block 72 is reduced, the valve flap 4 cannot be damaged, the service life of equipment is prolonged, when the flowing of the liquid in the external pipeline stops, the check valve is closed, the valve flap 4 rotates clockwise around the pin shaft 6 under the action of self gravity and the gravity of the balancing weight 41 to cover the valve seat 3, under the action of gravity, the elastic gasket 43 firstly enters the annular groove to cause extrusion and loss of instant impact force, then under the action of gravity, the elastic gasket 43 completely enters the annular groove, at the moment, the sealing ring 42 enters the sealing groove to form sealing, and cannot cause rigid contact between the valve flap, the service life of the device is prolonged, the position of the valve clack 4 limited by the elastic gasket 43 entering the annular groove can not move, and in addition, the secondary sealing effect is also realized, and the practicability is very strong.
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 (7)
1. The utility model provides a self sealss swing check valve, includes valve body (1) and through screw rod and valve body (1) fixed seal's valve gap (2), is equipped with communicating inlet channel (11), liquid outlet channel (12) in valve body (1) and is located and forms and valve gap (2) communicating vertical passageway, its characterized in that between valve body (1) inlet channel (11) and liquid outlet channel (12): valve body (1) are located inlet channel (11) and locate to install disk seat (3), the lateral wall that vertical passageway of valve body (1) is close to inlet channel (11) rotates through round pin axle (6) and is connected with rocker (5), the other end of rocker (5) is connected with valve clack (4) with disk seat (3) matching, be provided with self sealss on valve clack (4).
2. The self-sealing swing check valve of claim 1 wherein: the valve seat (3) is of an annular structure, and the inner wall of one side of the annular structure, which is close to the liquid inlet channel (11), is of an arc-shaped structure.
3. The self-sealing swing check valve of claim 1 wherein: the self-sealing structure comprises a sealing ring (42) which is connected above the connection part of the valve clack (4) positioned at the rocker (5) and the valve clack (4), the sealing ring (42) which is connected to the valve clack (4) and close to the valve seat (3) and an elastic gasket (43) which is connected to the valve clack (4) and close to the valve seat (3), wherein the diameter of the elastic gasket (43) is larger than that of the sealing ring (42).
4. A self-sealing swing check valve as defined in claim 3 wherein: and a sealing groove matched with the sealing ring (42) to form sealing is formed in the inner side wall of one end, close to the valve clack (4), of the valve seat (3).
5. A self-sealing swing check valve as defined in claim 3 wherein: and an annular groove matched with the elastic gasket (43) to form a buffering effect is formed in the side wall of one end, close to the valve clack (4), of the valve seat (3).
6. The self-sealing swing check valve of claim 5 wherein: the section width of the annular groove is of a trapezoidal structure with a large inside and a small outside, and the section of the elastic gasket (43) is of a trapezoidal structure which is matched with the annular groove and used for preventing the valve clack (4) from being separated from the valve seat (3) after being inserted into the annular groove.
7. A self-sealing swing check valve as defined in claim 3 wherein: lateral wall fixedly connected with position that inlet channel (11) were kept away from to valve body (1) vertical passageway is higher than stopper (7) of round pin axle (6), valve clack (4) upwards rotate rather than buffer block (72) of buffering collision when the lower extreme of stopper (7) is connected with valve body (1) through spring (71) and opens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840210.2U CN213064754U (en) | 2020-05-19 | 2020-05-19 | Self sealss swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020840210.2U CN213064754U (en) | 2020-05-19 | 2020-05-19 | Self sealss swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213064754U true CN213064754U (en) | 2021-04-27 |
Family
ID=75564992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020840210.2U Active CN213064754U (en) | 2020-05-19 | 2020-05-19 | Self sealss swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213064754U (en) |
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2020
- 2020-05-19 CN CN202020840210.2U patent/CN213064754U/en active Active
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