CN216519782U

CN216519782U - Rubber flap check valve

Info

Publication number: CN216519782U
Application number: CN202121723705.8U
Authority: CN
Inventors: 陈金钻
Original assignee: Benxing Valve Manufacturing Co ltd
Current assignee: Benxing Valve Manufacturing Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-05-13
Anticipated expiration: 2031-07-27

Abstract

The utility model provides a rubber flap check valve with simple structure and filtering and cleaning functions, which comprises a valve body, a filter screen, a valve cover arranged on the valve body and a valve rod arranged in the valve body, wherein a valve clack used for intercepting a fluid medium is arranged on the valve rod, a water inlet channel and a water outlet channel are arranged in the valve body, a valve seat is arranged between the water inlet channel and the water outlet channel, the valve clack is sealed on the valve seat to intercept the fluid medium, the filter screen is arranged on the valve seat, a brush can be rotatably arranged in the valve body, the brush is positioned below the filter screen and can be resisted with the filter screen, a lifting device used for driving the brush to lift up and down is arranged in the valve body, and a rotating device used for driving the brush to rotate is also arranged in the valve body.

Description

Rubber flap check valve

Technical Field

The utility model relates to the field of valves, in particular to a rubber flap check valve.

Background

The check valve is a valve which is used for preventing the media from flowing backwards and is a commonly used connecting piece in pipeline connection, and the check valve is a valve which automatically opens and closes a valve clack by the flow of the media. The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Because the fluid medium in the pipeline has impurity, so impurity deposits in the check valve easily, damages valve gap, valve clack and other parts, still can produce the erosion to the valve body inner wall at the partial deposit of the inner wall of valve body that still can adhere to, reduces the life of valve body.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above problems, the present invention provides a rubber flap check valve with simple structure and filtering and cleaning functions.

In order to achieve the above purpose, the technical scheme of the utility model is to provide a rubber flap check valve, which comprises a valve body, a filter screen, a valve cover arranged on the valve body, and a valve rod arranged in the valve body, wherein a valve flap for intercepting fluid media is arranged on the valve rod, a water inlet channel and a water outlet channel are arranged in the valve body, a valve seat is arranged between the water inlet channel and the water outlet channel, the valve flap is sealed on the valve seat to intercept the fluid media, the filter screen is arranged on the valve seat, a brush is rotatably arranged in the valve body, the brush is positioned below the filter screen and can be resisted against the filter screen, a lifting device for driving the brush to lift up and down is arranged in the valve body, and a rotating device for driving the brush to rotate is also arranged in the valve body.

The further improvement is that: the lifting device comprises a lifting rod, a first channel is formed in the valve body, the lifting rod penetrates through the valve body and is located in the first channel, one end of the lifting rod is located in the valve body, the other end of the lifting rod penetrates out of the outer end portion of the valve body, a threaded block is fixedly arranged in the first channel, the lifting rod is in threaded transmission with the threaded block, and a sealing device is further arranged in the first channel.

The further improvement is that: the rotating device comprises a rotating rod, one end of the rotating rod is rotatably arranged on the lifting rod, the brush is fixedly arranged at the other end of the rotating rod, and an impeller is fixedly arranged on the rotating rod.

The further improvement is that: and a hand wheel is fixedly arranged on the rotating rod and is positioned at the outer end part of the valve body.

The further improvement is that: the valve body is provided with a sewage discharge channel communicated with the outside, and a sealing element is detachably arranged in the sewage discharge channel.

The further improvement is that: the sealing element is a transparent plastic sealing cover, and the plastic sealing cover is arranged in the sewage draining channel through threaded connection.

The further improvement is that: the filter screen is arranged in the connecting sleeve, and the connecting sleeve is in threaded connection with the valve seat.

The further improvement is that: the connecting sleeve is fixedly provided with a limiting table which can be abutted against the valve seat.

The further improvement is that: a sealing groove is formed in the connecting sleeve, and the valve clack is pressed in the sealing groove.

The further improvement is that: the valve comprises a valve cover, a valve rod and an elastic piece, wherein the valve cover is fixedly provided with a sliding sleeve, the valve rod is slidably arranged in the sliding sleeve, and the elastic piece is arranged between the sliding sleeve and the valve rod.

The utility model has the advantages and beneficial effects that:

1. simple structure and convenient use. The filter screen can filter impurity, has avoided impurity to damage the part and the deposit inside the valve body in the valve body through valve gap and exhalant canal, produces the erosion to the valve body inner wall. And the blade can drive the brush and scrub the filter screen, prevents that the filter screen from blockking up, makes the fluid medium can be unblocked through the filter screen, realizes the automatic clearance to the filter screen, has avoided still opening the valve gap and clears up the filter screen again, has saved staff's cleaning efficiency greatly.

2. The sewage draining channel can conveniently clean impurities deposited in the water inlet channel, and the transparent plastic sealing cover can observe the condition of the impurity deposition in the valve body, so that workers can clean the impurities in time.

3. The adapter sleeve can conveniently change the filter screen, improves its practicality.

Drawings

Fig. 1 is a schematic view of a cut-away structure of a rubber flap check valve according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1, a rubber flap check valve comprises a valve body 1, a valve cover 4 arranged on the valve body 1, and a valve rod 5 arranged in the valve body 1, wherein a valve flap 8 for intercepting a fluid medium is arranged on the valve rod 5, a water inlet channel 2 and a water outlet channel 3 are arranged in the valve body 1, a valve seat is arranged between the water inlet channel 2 and the water outlet channel 3, the valve flap 8 is sealed on the valve seat to intercept the fluid medium, a filter screen 12 is arranged on the valve seat, a brush 13 is rotatably arranged in the valve body 1, the brush 13 is positioned below the filter screen 12 and can be abutted against the filter screen 12, a lifting rod 19 for driving the brush 13 to lift up and down is arranged in the valve body 1, a first channel 16 is arranged on the valve body 1, the lifting rod 19 is arranged on the valve body 1 and positioned in the first channel 16, one end of the lifting rod 19 is positioned in the valve body 1, and the other end of the lifting rod penetrates out of the outer end portion of the valve body 1, 16 internal fixation of first passageway is equipped with screw block 17, lifter 19 and screw block 17 screw drive, still be equipped with sealing washer 18 in the first passageway 16, lifter 19 wears to locate in the sealing washer 18, still be equipped with drive brush 13 pivoted dwang 14 in the valve body 1, dwang 14 one end is rotatable to be located on the lifter 19, brush 13 is fixed to be located the other end of dwang 14, the fixed impeller 15 that is equipped with on the dwang 14. When the valve is used, when the valve clack 8 is opened, the check valve circulates, fluid media enter from the water inlet channel 2, then are filtered through the filter screen 12, and then flow out from the water outlet channel 3, so that the situation that impurities damage parts in the valve body 1 through the valve cover 4 and the water outlet channel 3 and are deposited inside the valve body 1 is avoided, and the erosion is generated on the inner wall of the valve body 1. When the filter screen 12 is blocked, the lifting rod 19 is rotated, the brush 13 can be resisted with the filter screen 12, when the fluid medium erodes the impeller 15, the impeller 15 can be driven to rotate, the impeller 15 drives the rotating rod 14 to rotate, the brush 13 is driven to rotate, the filter screen 12 is scrubbed, the filter screen 12 is prevented from being blocked, the fluid medium can smoothly pass through the filter screen 12, the filter screen 12 is automatically cleaned, the situation that the valve cover 4 is opened to clean the filter screen 12 is avoided, and the cleaning efficiency of workers is greatly reduced.

In order to rotate the lifting rod 19 conveniently, a hand wheel 20 is fixedly arranged on the rotating rod 14, and the hand wheel 20 is positioned at the outer end part of the valve body 1.

In order to conveniently clean impurities deposited in the water inlet channel 2, a sewage channel 21 communicated with the outside is formed in the valve body 1, a transparent plastic sealing cover 22 is arranged in the sewage channel 21, and the plastic sealing cover 22 is arranged in the sewage channel 21 through threaded connection. The condition of impurity deposition in the valve body 1 can be observed through the transparent plastic sealing cover 22, and when the impurity deposition is more, the plastic sealing cover 22 is opened, and the impurities can flow out through the sewage channel 21.

In order to conveniently replace the filter screen 12, the filter screen replacing device further comprises a connecting sleeve 9, the filter screen 12 is arranged in the connecting sleeve 9, and the connecting sleeve 9 is connected to the valve seat in a threaded mode.

In order to facilitate the rotating installation, a limiting table 10 is fixedly arranged on the connecting sleeve 9, and the limiting table 10 can be abutted against the valve seat. The limiting table 10 can prevent the connecting sleeve 9 from excessively penetrating into the valve seat to influence the sealing performance of the valve clack 8.

In order to improve the sealing performance between the valve flap 8 and the connecting sleeve 9, a sealing groove 11 is formed in the connecting sleeve 9, and the valve flap 8 is pressed in the sealing groove 11.

In order to further improve the sealing of the valve clack 8, a sliding sleeve 6 is fixedly arranged on the valve cover 4, the valve rod 5 is slidably arranged in the sliding sleeve 6, and a compression spring 7 is arranged between the sliding sleeve 6 and the valve rod 5.

While there have been shown and described what are at present considered to be the fundamental principles of the utility model and its essential features and advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are included to illustrate the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a rubber lamella check valve, includes the valve body, locates the valve gap on the valve body and locates the valve rod in the valve body, be equipped with the valve clack that is used for fluid medium to dampe on the valve rod, seted up inhalant canal and exhalant canal in the valve body, be equipped with the disk seat between inhalant canal and the exhalant canal, the valve clack is airtight to be dammed fluid medium on the disk seat, its characterized in that: the valve body is internally provided with a lifting device used for driving the brush to ascend and descend, and the valve body is internally provided with a rotating device used for driving the brush to rotate.

2. A rubber flap check valve according to claim 1, wherein: the lifting device comprises a lifting rod, a first channel is formed in the valve body, the lifting rod penetrates through the valve body and is located in the first channel, one end of the lifting rod is located in the valve body, the other end of the lifting rod penetrates out of the outer end portion of the valve body, a threaded block is fixedly arranged in the first channel, the lifting rod is in threaded transmission with the threaded block, and a sealing device is further arranged in the first channel.

3. A rubber flap check valve according to claim 2, wherein: the rotating device comprises a rotating rod, one end of the rotating rod is rotatably arranged on the lifting rod, the brush is fixedly arranged at the other end of the rotating rod, and an impeller is fixedly arranged on the rotating rod.

4. A rubber flap check valve according to claim 3 wherein: and a hand wheel is fixedly arranged on the rotating rod and is positioned at the outer end part of the valve body.

5. A rubber flap check valve according to claim 1, wherein: the valve body is provided with a sewage discharge channel communicated with the outside, and a sealing element is detachably arranged in the sewage discharge channel.

6. A rubber flap check valve according to claim 5 wherein: the sealing element is a transparent plastic sealing cover, and the plastic sealing cover is arranged in the sewage draining channel through threaded connection.

7. A rubber flap check valve according to claim 5 wherein: the filter screen is arranged in the connecting sleeve, and the connecting sleeve is in threaded connection with the valve seat.

8. A rubber flap check valve according to claim 7 wherein: the connecting sleeve is fixedly provided with a limiting table which can be abutted against the valve seat.

9. A rubber flap check valve according to claim 7 wherein: and a sealing groove is formed in the connecting sleeve, and the valve clack is pressed in the sealing groove.

10. A rubber flap check valve according to claim 1, wherein: the valve comprises a valve cover, a valve rod and an elastic piece, wherein the valve cover is fixedly provided with a sliding sleeve, the valve rod is slidably arranged in the sliding sleeve, and the elastic piece is arranged between the sliding sleeve and the valve rod.