CN213479287U

CN213479287U - Rubber flap check valve with reliable sealing performance

Info

Publication number: CN213479287U
Application number: CN202021920137.6U
Authority: CN
Inventors: 仇立强
Original assignee: Jiangsu Gaoda Valve Co ltd
Current assignee: Jiangsu Gaoda Valve Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-06-18
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a rubber lamella check valve that sealing performance is reliable relates to rubber lamella check valve technical field, for solving current rubber lamella check valve and only can carry comparatively clean medium, if contain the particulate matter in the medium, then cause the problem of jam easily. One side of the first main body of rubber flap check valve is provided with rubber flap check valve second main body, the one end of the first main body of rubber flap check valve and the one end of rubber flap check valve second main body all are provided with the installation port, and the installation port is provided with two, two be provided with the connection piece between the one end of installation port and the first main body of rubber flap check valve and the one end of rubber flap check valve second main body, and the connection piece is provided with two, two the one end of connection piece and the first main body of rubber flap check valve and the one end welded connection of rubber flap check valve second main body, the inside of the first main body of rubber flap check valve is provided with first circulation cavity.

Description

Rubber flap check valve with reliable sealing performance

Technical Field

The utility model relates to a rubber lamella check valve technical field specifically is a rubber lamella check valve that sealing performance is reliable.

Background

The component design of the H44X (SFCV) series rubber flap check valve mainly comprises three main parts, namely a valve body, a valve cover and a rubber flap. The rubber flap in the valve is made of steel plate, steel bar and reinforced nylon cloth as substrate, and the outer layer is covered with rubber, so that the service life of the flap can reach 100 ten thousand times.

The H44X (SFCV) series rubber flap check valve adopts the full flow area design, and has the characteristics of small head loss, difficult accumulation of sundries, simple and convenient maintenance and the like. The H44X (SFCV) series rubber flap check valve is mainly suitable for horizontally mounted water supply and drainage systems and can be mounted at the water outlet of a water pump to prevent backflow and damage of a water hammer to the pump. An H44X (SFCV) series rubber flap check valve may also be installed on the bypass line of the inlet and outlet pipes of the reservoir to prevent backflow of the pond water into the watering system. The check valve is generally suitable for cleaning media, but is not suitable for media containing solid particles and with higher viscosity. The main part materials are as follows: part name, valve body, valve cover and valve clack; materials: cast iron, cast iron steel and reinforced nylon cloth.

However, the existing rubber flap check valve can only convey relatively clean media, and if the media contain particulate matters, the media are easy to block; therefore, the existing demand is not satisfied, and a rubber flap check valve with reliable sealing performance is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rubber lamella check valve that sealing performance is reliable to current rubber lamella check valve that proposes in solving above-mentioned background art only can carry comparatively clean medium, if contain the particulate matter in the medium, then cause the problem of jam easily.

In order to achieve the above object, the utility model provides a following technical scheme: a rubber flap check valve with reliable sealing performance comprises a rubber flap check valve first main body, wherein a rubber flap check valve second main body is arranged on one side of the rubber flap check valve first main body, two mounting ports are arranged at one end of the rubber flap check valve first main body and one end of the rubber flap check valve second main body, connecting pieces are arranged between the two mounting ports and one end of the rubber flap check valve first main body and one end of the rubber flap check valve second main body, the two connecting pieces are welded and connected with one end of the rubber flap check valve first main body and one end of the rubber flap check valve second main body, a first circulation cavity is arranged inside the rubber flap check valve first main body, a second circulation cavity is arranged inside the rubber flap check valve second main body, and a circulation port is arranged between the second circulation cavity and the first circulation cavity, the inside of first circulation cavity is provided with anti-return baffle, anti-return baffle rotates through rotatory hinge and the first main part of rubber lamella check valve to be connected, the inside of first circulation cavity is provided with first filter screen, and first filter screen and the first main part fixed connection of rubber lamella check valve, the inside of second circulation cavity is provided with the second filter screen, and second filter screen and rubber lamella check valve second main part fixed connection.

Preferably, the outer sides of the two mounting ports are provided with two first sealing ring cushion layers, and the two first sealing ring cushion layers are arranged in the two outer sides of the mounting ports.

Preferably, the top of the first main part of rubber lamella check valve is provided with down fixed block mechanism, and the lower terminal surface and the first main part welded connection of rubber lamella check valve of lower fixed block mechanism, the top of fixed block mechanism is provided with fixed block mechanism down, go up fixed block mechanism through hexagonal rivet and fixed block mechanism threaded connection down, and hexagonal rivet is provided with four, be provided with the second sealing washer bed course down between fixed block mechanism and the last fixed block mechanism.

Preferably, a thread plugging block is arranged on the lower end face of the second rubber flap check valve body, and one end of the thread plugging block penetrates through and extends into the second rubber flap check valve body.

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

1. the utility model discloses a set up first filter screen and second filter screen in first circulation cavity and second circulation cavity, let the mode that only can carry the cleaning medium in original device improve, when carrying the medium that contains the particulate matter, the interception of particulate matter is carried out to the accessible filter screen, avoids the convection opening to cause the condition of jam to take place.

2. Through the anti-return baffle that sets up at first circulation cavity, let this valve only can flow the medium towards a direction, when the medium backward flow, can rotate anti-return baffle towards another direction, rely on the buckle location, let anti-return baffle directly seal the circulation mouth to can't let the medium backward flow, play the effect of non return.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

in the figure: 1. a rubber flap check valve first body; 2. a rubber flap check valve second body; 3. Connecting sheets; 4. installing a port; 5. a first seal ring cushion layer; 6. a lower fixed block mechanism; 7. An upper fixed block mechanism; 8. a hexagonal rivet; 9. a thread plugging block; 10. a first flow-through chamber; 11. a second flow-through chamber; 12. a first filter screen; 13. a second filter screen; 14. an anti-backflow baffle; 15. rotating the hinge; 16. a flow port; 17. mounting a hole groove; 18. and a second seal ring cushion layer.

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. 1-3, the present invention provides an embodiment: a rubber flap check valve with reliable sealing performance comprises a first rubber flap check valve main body 1, a second rubber flap check valve main body 2 is arranged on one side of the first rubber flap check valve main body 1, two mounting ports 4 are arranged at one end of the first rubber flap check valve main body 1 and one end of the second rubber flap check valve main body 2, a connecting piece 3 is arranged between the two mounting ports 4 and one end of the first rubber flap check valve main body 1 and one end of the second rubber flap check valve main body 2, the connecting pieces 3 are two, the two connecting pieces 3 are welded and connected with one end of the first rubber flap check valve main body 1 and one end of the second rubber flap check valve main body 2, the welded and connected possibility is reduced, a first through cavity 10 is arranged inside the first rubber flap check valve main body 1, a second through cavity 11 is arranged inside the second rubber flap check valve main body 2, a circulation port 16 is arranged between the second circulation cavity 11 and the first circulation cavity 10, the circulation port 16 is arranged to allow a medium to smoothly circulate, a backflow prevention baffle 14 is arranged inside the first circulation cavity 10, the backflow prevention baffle 14 is rotatably connected with the first main body 1 of the rubber flap check valve through a rotating hinge 15, a first filter screen 12 is arranged inside the first circulation cavity 10, the first filter screen 12 is fixedly connected with the first main body 1 of the rubber flap check valve, a second filter screen 13 is arranged inside the second circulation cavity 11, the second filter screen 13 is fixedly connected with the second main body 2 of the rubber flap check valve, the first filter screen 12 and the second filter screen 13 are arranged inside the first circulation cavity 10 and the second circulation cavity 11, when the device circulates the medium containing particulate matters, the particulate matters can be filtered, and the blockage of the circulation port 16 caused by the particulate matters is prevented, the problem of being unusable.

Further, the outside of two installation ports 4 all is provided with first sealing washer bed course 5, and first sealing washer bed course 5 is provided with two, and the inside in two installation ports 4 outsides is all installed to two first sealing washer bed courses 5, the setting of first sealing washer bed course 5 for the device is strengthened with external connection's stability.

Further, the top of the first main part 1 of rubber lamella check valve is provided with lower fixed block mechanism 6, and the lower terminal surface of lower fixed block mechanism 6 and the first main part 1 welded connection of rubber lamella check valve, the top of lower fixed block mechanism 6 is provided with fixed block mechanism 7, it passes through hexagonal rivet 8 and lower fixed block mechanism 6 threaded connection to go up fixed block mechanism 7, and hexagonal rivet 8 is provided with four, be provided with second sealing washer bed course 18 down between fixed block mechanism 6 and the last fixed block mechanism 7, the setting of hexagonal rivet 8, it is all comparatively convenient to let installation or dismantlement.

Further, the lower terminal surface of rubber lamella check valve second main part 2 is provided with screw thread jam block 9, and the one end of screw thread jam block 9 runs through and extends to the inside of rubber lamella check valve second main part 2, and the setting of screw thread jam block 9 lets some particulate matters in bottom can get rid of, when not using, carries out sealed the blockking up.

The working principle is as follows: during the use, will be through installation port 4 and mounting hole groove 17 with rubber lamella check valve and outside pipeline threaded connection, and the first sealing washer bed course 5 in the installation port 4 outside can make the leakproofness reinforcing when this valve and external connection, let the transport more stable, firm, and at first filter screen 12 and the second filter screen 13 of the inside setting of first circulation cavity 10 and second circulation cavity 11, let the device when carrying out the circulation to the medium that contains the particulate matter, can carry out the filtration of particulate matter, prevent that it from blockking up circulation port 16, cause the unable problem of using of valve to take place, and the anti-reflux baffle 14 that sets up in circulation port 16 one side, can effectually prevent the medium backward flow.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A rubber flap check valve with reliable sealing performance comprises a first rubber flap check valve body (1), and is characterized in that: one side of the rubber flap check valve first main body (1) is provided with a rubber flap check valve second main body (2), one end of the rubber flap check valve first main body (1) and one end of the rubber flap check valve second main body (2) are both provided with two installation ports (4), two installation ports (4) are arranged between one end of the rubber flap check valve first main body (1) and one end of the rubber flap check valve second main body (2) and are connected with connecting pieces (3), the connecting pieces (3) are arranged in two numbers, the two connecting pieces (3) are connected with one end of the rubber flap check valve first main body (1) and one end of the rubber flap check valve second main body (2) in a welding manner, a first circulation cavity (10) is arranged in the rubber flap check valve first main body (1), a second circulation cavity (11) is arranged in the rubber flap check valve second main body (2), be provided with between second circulation cavity (11) and the first circulation cavity (10) circulation mouth (16), the inside of first circulation cavity (10) is provided with anti-return baffle (14), anti-return baffle (14) rotate with the first main part of rubber lamella check valve (1) through rotatory hinge (15) and are connected, the inside of first circulation cavity (10) is provided with first filter screen (12), and first filter screen (12) and the first main part of rubber lamella check valve (1) fixed connection, the inside of second circulation cavity (11) is provided with second filter screen (13), and second filter screen (13) and rubber lamella check valve second main part (2) fixed connection.

2. A reliable seal rubber flap check valve as defined in claim 1 wherein: the outer side of the mounting port (4) is provided with two first sealing ring cushion layers (5), the number of the first sealing ring cushion layers (5) is two, and the first sealing ring cushion layers (5) are mounted in the inner portion of the outer side of the mounting port (4).

3. A reliable seal rubber flap check valve as defined in claim 1 wherein: the rubber lamella check valve is characterized in that a lower fixing block mechanism (6) is arranged above the first main body (1) of the rubber lamella check valve, the lower end face of the lower fixing block mechanism (6) is connected with the first main body (1) of the rubber lamella check valve in a welded mode, an upper fixing block mechanism (7) is arranged above the lower fixing block mechanism (6), the upper fixing block mechanism (7) is connected with the lower fixing block mechanism (6) in a threaded mode through hexagonal rivets (8), the hexagonal rivets (8) are four, and a second sealing ring cushion layer (18) is arranged between the lower fixing block mechanism (6) and the upper fixing block mechanism (7).

4. A reliable seal rubber flap check valve as defined in claim 1 wherein: the lower end face of the rubber flap check valve second main body (2) is provided with a thread plugging block (9), and one end of the thread plugging block (9) penetrates through and extends into the rubber flap check valve second main body (2).