CN213332562U

CN213332562U - Double check valve of leakproofness plastics

Info

Publication number: CN213332562U
Application number: CN202021942894.3U
Authority: CN
Inventors: 屈礼平; 邓大勇; 龚涛; 连翔
Original assignee: Qionglai Xinfaner Valve Industry Co ltd
Current assignee: Qionglai Xinfaner Valve Industry Co ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2021-06-01
Anticipated expiration: 2030-09-08

Abstract

The utility model discloses a dual check valve of leakproofness plastics, including the valve body, seted up two non return chambeies in the valve body, the connector that runs through the valve body lateral wall is all seted up to non return chamber looks back end, is provided with the intercommunication mouth between the non return chamber, has seted up cyclic annular mouth on the non return chamber lateral wall, and cyclic annular mouth is connected with the sealing ring through loading mechanism, and non return intracavity lateral wall is connected with the atress seat through the support column, and the atress seat is connected with the valve clack through coupling mechanism. The utility model discloses a set up two non return chambeies in the valve body, be provided with two sets ofly in the non return intracavity, the valve clack, the atress seat, spacing post, gasket and annular supporting part, realize the effect of dual seal, guarantee the leakproofness of valve body, be provided with the pressurized piston ring through the valve clack department in the outside, the reflux pressure through rivers makes the pressurized piston ring fastening remove the post and drive the sealing ring and remove, make the sealing ring remove the gasket department on the valve clack, the realization is sealed the space of inside valve clack and annular supporting part department.

Description

Double check valve of leakproofness plastics

Technical Field

The utility model relates to a check valve seal structure technical field especially relates to a dual check valve of leakproofness plastics.

Background

With the acceleration of the valve industry restructuring pace, the future industry is the competition between the valve product quality safety and the product brand, the product is developed towards high technology, high parameter, strong corrosion resistance and long service life, and the technical level of the product can be gradually improved only by developing a new product and carrying out technical transformation through continuous technical innovation, so that the matching of domestic devices is met.

Check valve on the market passes through the conflict realization sealed effect between valve clack and the valve body, the flow direction of steerable rivers, and current check valve is using the use in-process, seals through a plurality of valve clacks, and sealed effect is not good, provides a dual check valve of leakproofness plastics now.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing check valve is sealed by a plurality of valve clacks when being used and used, and the sealing effect is not good, and the double check valve made of sealing plastic is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a dual check valve of leakproofness plastics, includes the valve body, seted up two non return chambeies in the valve body, two the connector that runs through the valve body lateral wall is all seted up to non return chamber looks back end, two be provided with the intercommunication mouth between the non return chamber, be located intercommunication mouth department seted up on the non return chamber lateral wall and be the level and be provided with cyclic annular mouth, cyclic annular mouth is connected with the sealing ring through loading mechanism, non return intracavity lateral wall is connected with the atress seat through a plurality of support columns, the atress seat is connected with the valve clack through coupling mechanism.

Preferably, the pressurization mechanism includes the pressurized piston ring with cyclic annular mouth inside wall sliding connection, pressurized piston ring lateral wall fixedly connected with a plurality of removal posts, the pressurized piston ring is connected with cyclic annular mouth lateral wall through the answer spring of cover on moving post lateral wall, and is a plurality of it runs through the outside extension of non return chamber lateral wall to remove the post other end, and with same sealing ring lateral wall fixed connection.

Preferably, coupling mechanism is including the fixed mobile through-hole who runs through the lateral wall of seting up on the atress seat, mobile through-hole inside wall sliding connection has the spacing post that is the level setting, spacing toe portion and valve clack lateral wall fixed connection, the valve clack is established conflict spring and atress seat lateral wall connection on spacing post lateral wall through the cover.

Preferably, a connecting ring is fixedly connected to the side wall of the valve flap, and an annular sealing sheet is arranged between the connecting ring and the valve flap.

Preferably, the connecting port and the inner side wall of the communication port are fixedly connected with irregular annular contact pieces.

Preferably, the side walls of the valve body at the two ends of the connecting port are fixedly connected with connecting flanges.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through set up two non return chambeies in the valve body, be provided with two sets ofly in the non return intracavity, valve clack, atress seat, spacing post, gasket and annular touch piece, realize the effect of dual seal, guarantee the leakproofness of valve body.

2. Be provided with the pressurized piston ring through the valve clack department in the outside, make the pressurized piston ring fastening move the post and drive the sealing ring and remove through the reflux pressure of rivers for the sealing ring removes the gasket department on the valve clack, realizes sealing up the space of inside valve clack and annular department of supporting contact.

Drawings

Fig. 1 is a schematic structural view of a sealing plastic double check valve according to the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure: the valve comprises a valve body 1, a check cavity 2, a connecting port 3, a communicating port 4, an annular port 5, a supporting column 6, a force bearing seat 7, a valve clack 8, a pressed piston ring 9, a moving column 10, a sealing ring 11, a limiting column 12, a connecting ring 13, a sealing sheet 14, an annular abutting piece 15 and a connecting flange 16.

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.

Referring to fig. 1-2, a sealing plastic double check valve comprises a valve body 1, two check cavities 2 are arranged in the valve body 1, connecting ports 3 penetrating through the side wall of the valve body 1 are respectively arranged at the back ends of the two check cavities 2, a communicating port 4 is arranged between the two check cavities 2, a ring-shaped port 5 is horizontally arranged on the side wall of the check cavity 2 at the communicating port 4, the ring-shaped port 5 is connected with a sealing ring 11 through a pressurizing mechanism, the sealing ring 11 is arranged at the sealing sheet 14 and the annular contact piece 15 to seal the gap between the sealing sheet and the annular contact piece 15, so as to ensure the sealing effect, further, the pressurizing mechanism comprises a pressed piston ring 9 connected with the inner side wall of the ring-shaped port 5 in a sliding manner, the side wall of the pressed piston ring 9 is fixedly connected with a plurality of movable columns 10, the pressed piston ring 9 is connected with the side wall of the ring, the other ends of the movable columns 10 penetrate through the side wall of the non-return cavity 2 and extend outwards, and are fixedly connected with the same side wall of the sealing ring 11, one end of each movable column 10 is fixedly connected with the side wall of the non-return cavity 2, and the other end of each movable column can be fixedly connected with the stressed seat 7.

The inner side wall of the non-return cavity 2 is connected with a stressed seat 7 through a plurality of support columns 6, and the stressed seat 7 is connected with a valve clack 8 through a connecting mechanism; further, coupling mechanism is including the fixed through-hole that runs through the lateral wall of seting up on atress seat 7, through-hole inside wall sliding connection has spacing post 12 that is the level setting, carry out sealing treatment through the sealing rubber circle between spacing post 12 and the through-hole, spacing post 12 tip and 8 lateral walls fixed connection of valve clack, valve clack 8 is connected with atress seat 7 lateral wall through the conflict spring of cover on spacing post 12 lateral wall, 8 lateral walls fixed connection of valve clack has go-between 13, be provided with between go-between 13 and the valve clack 8 and be annular gasket 14.

Furthermore, the inner side walls of the connecting port 3 and the communicating port 4 are fixedly connected with irregular annular contact pieces 15, and the side walls of the valve body 1 at the two ends of the connecting port 3 are fixedly connected with connecting flanges 16.

In the utility model, when water flows into the non-return cavity 2 from the opposite side of the limit column 12, the valve flap 8 is impacted under the action of water flow pressure, so that the valve flap 8 moves towards one end of the limit column 12 to drive the limit column 12 to move on the stress seat 7, the sealing sheet 14 connected on the valve flap 8 is far away from the annular contact piece 15 arranged in the non-return cavity 2, and at the moment, the water flow flows into the non-return cavity 2 from the sealing sheet 14 and the annular contact piece 15 to realize communication;

when water flows back from the other side to the check cavity 2, the valve flap 8 is moved by the water flow, the valve flap 8 collides with the annular contact piece 15 arranged on the check cavity 2, and the sealing piece 14 arranged on the valve flap 8 realizes sealing, so that the water flow cannot leak from the valve flap 8;

and when the valve clack 8 department in the outside was in the conflict of rivers, can make rivers act on the pressurized piston ring 9 that is located cyclic annular mouth 5, pressure effect sewer pressurized piston ring 9 at rivers moves in cyclic annular mouth 5 for the removal post 10 that is connected with pressurized piston ring 9 drives sealing ring 11 and moves, sealing ring 11 can realize contradicting with the gasket on the valve clack 8 of inside, thereby realize sealing once more through inside secondary valve clack 8, sealed effect has been guaranteed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a dual check valve of leakproofness plastics, includes valve body (1), its characterized in that, set up two non return chambeies (2), two in valve body (1) the connector (3) that run through valve body (1) lateral wall are all seted up to non return chamber (2) looks back end, two be provided with intercommunication mouth (4) between non return chamber (2), be located intercommunication mouth (4) department seted up on non return chamber (2) lateral wall and be the level and be provided with cyclic annular mouth (5), cyclic annular mouth (5) are connected with sealing ring (11) through loading system, non return chamber (2) inside wall is connected with atress seat (7) through a plurality of support columns (6), atress seat (7) are connected with valve clack (8) through coupling mechanism.

2. The dual check valve of a kind of hermetic plastics of claim 1, characterized by, the said pressurization organization includes the compression piston ring (9) with sliding connection of inside wall of the annular mouth (5), the said compression piston ring (9) sidewall has a plurality of mobile columns (10) fixedly connected, the said compression piston ring (9) is connected with the side wall of the annular mouth (5) through the return spring that the cover is set up on moving the outside wall of the column (10), a plurality of said mobile columns (10) another end extend outside through the side wall of the check cavity (2), and fixedly connected with the same seal ring (11) sidewall.

3. The dual check valve of a kind of hermetic plastic according to claim 1, characterized by, the said coupling mechanism includes the fixed mobile through hole which runs through the sidewall that is set up on the stressed seat (7), the said mobile through hole inside wall has spacing posts (12) that are the level setting slidably connected, the end of the said spacing post (12) is fixedly connected with lateral wall of the valve flap (8), the said valve flap (8) is connected with lateral wall of stressed seat (7) through the interference spring that the cover is set up on the lateral wall of the spacing post (12).

4. The double check valve of sealing plastic as claimed in claim 1, characterized in that a connecting ring (13) is fixedly connected to the side wall of the valve flap (8), and a sealing sheet (14) in the form of a ring is arranged between the connecting ring (13) and the valve flap (8).

5. The double check valve of claim 1, characterized in that the connecting port (3) and the inner side wall of the communicating port (4) are fixedly connected with irregular annular contact pieces (15).

6. The double check valve of a kind of hermetic plastic according to claim 1, characterized by, that the side wall of the valve body (1) at both ends of the connection port (3) is fixedly connected with a connection flange (16).