Diaphragm valve body and diaphragm valve

Abstract

The utility model relates to the technical field of valves, in particular to a diaphragm valve body and a diaphragm valve.The diaphragm valve body comprises a valve body, a sealing cover is connected to the upper end face of the valve body in a sealed mode, a threaded rod is connected into a sealing block in a threaded mode, the bottom end of the threaded rod is rotationally connected with the sealing block, and a limiting block is fixedly connected into the valve body; the side face of the sealing block is slidably connected with and attached to the side face of the limiting block, a liquid inlet pipe is fixedly connected to the lower end face of the valve body, the top end of the liquid inlet pipe is communicated with the interior of the valve body, a sealing ring is fixedly connected into the valve body, and a diaphragm body is fixedly connected to the inner wall of the valve body. The two handles can respectively drive the threaded rod to rotate, the movement of the two sealing blocks can be independently controlled, the sealing blocks can enable the diaphragm body to abut against the sealing ring for independent sealing, the flow of the two flow dividing pipes can be independently controlled, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a diaphragm valve body and a diaphragm valve. Background Art

[0002] Patent No. CN216279525U discloses a diaphragm valve body and a diaphragm valve. The utility model has a reasonable structural design and can install the diaphragm valve in a self-draining installation manner without using a protractor.

[0003] However, the existing diaphragm valve body and diaphragm valve described above have two connecting pipes connected to the two connecting holes, respectively. The two connecting pipes are arranged in a mirror-symmetrical manner. The connecting pipes include a straight pipe section and a curved pipe section. The ends of the curved pipe sections are vacuum welded to the connecting holes, and the connecting pipes are located on one side of the outer wall of the valve cavity. Due to the lack of a flow diversion structure, this device can only control the flow of a single pipe, making its practicality relatively limited.

[0004] In order to solve the above problems, the utility model provides a diaphragm valve body and a diaphragm valve. Utility Model Content

[0005] In response to the deficiencies of the prior art, the utility model provides a diaphragm valve body and a diaphragm valve to solve the technical problem in the prior art that "two connecting pipes are respectively connected to two connecting holes. The two connecting pipes are arranged in mirror symmetry. The connecting pipes include a straight pipe section and a curved pipe section. The end of the curved pipe section is vacuum welded to the connecting hole, and the connecting pipe is located on one side of the outer wall of the valve cavity. Due to the lack of a diversion structure, the device can only control the flow of one pipeline, and its practicality is relatively simple."

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: it includes a valve body, the upper end face of the valve body is sealed with a sealing cover, the sealing block is internally threaded with a threaded rod, the bottom end of the threaded rod is rotatably connected to the sealing block, the valve body is fixedly connected with a limiting block, the side of the sealing block is slidingly connected and fits with the side of the limiting block, the lower end face of the valve body is fixedly connected with a liquid inlet pipe, the top of the liquid inlet pipe is connected to the valve body, the valve body is fixedly connected with a sealing ring, the inner wall of the valve body is fixedly connected with a diaphragm body, and the lower end face of the sealing block abuts against the upper end face of the diaphragm body.

[0007] As a preferred technical solution of the present invention, the sealing cover and the side surface of the valve body are fixedly connected with a fixing block, and the fixing block is internally threaded with a bolt.

[0008] As a preferred technical solution of the present invention, a handle is fixedly connected to the top end of the threaded rod, and the number of the handles matches the number of the threaded rods.

[0009] As a preferred technical solution of the present invention, the shape of the diaphragm body matches the shape of the inner wall of the valve body, and the shape of the sealing block is set to be hemispherical.

[0010] As a preferred technical solution of the present invention, the front and rear sides of the valve body are fixedly connected with diversion pipes, and one end of the two diversion pipes is connected to the valve body.

[0011] As a preferred technical solution of the present invention, the size of the sealing ring matches the size of the liquid inlet pipe, and the lower end surface of the diaphragm body overlaps the upper end surface of the sealing ring.

[0012] The utility model provides a diaphragm valve body and a diaphragm valve, which have the following beneficial effects:

[0013] The threaded rods can be driven to rotate by the two handles respectively, so that the movement of the two sealing blocks can be controlled separately, and the sealing blocks can press the diaphragm body against the sealing ring for separate sealing, and the flow of the two shunt pipes can be controlled separately, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the explosion structure proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the limit block proposed in the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the diaphragm body proposed in the utility model;

[0018] Figure 5 This is a schematic cross-sectional view of the valve body proposed in the present invention;

[0019] Figure 6 This is a schematic diagram of the structure of the fixed block proposed in the utility model;

[0020] Figure 7 The utility model provides a structural diagram of the sealing block.

[0021] In the figure: 1 valve body, 2 diverter pipe, 3 liquid inlet pipe, 4 sealing cover, 5 fixing block, 6 bolt, 7 handle, 8 threaded rod, 9 sealing block, 10 diaphragm body, 11 limit block, 12 sealing ring. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] Thus, a feature indicated in this specification is intended to illustrate one of the features of one embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other, not explicitly described, combinations. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0024] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments:

[0025] refer to Figure 1-7 A diaphragm valve body and a diaphragm valve include a valve body 1, the upper end face of the valve body 1 is sealed with a sealing cover 4, the sealing block 9 is internally threadedly connected to a threaded rod 8, the bottom end of the threaded rod 8 is rotatably connected to the sealing block 9, the valve body 1 is fixedly connected to a limiting block 11, the side of the sealing block 9 is slidably connected and fits with the side of the limiting block 11, the lower end face of the valve body 1 is fixedly connected to a liquid inlet pipe 3, the top of the liquid inlet pipe 3 is connected to the valve body 1, a sealing ring 12 is fixedly connected to the valve body 1, the inner wall of the valve body 1 is fixedly connected to a diaphragm body 10, and the lower end face of the sealing block 9 abuts against the upper end face of the diaphragm body 10.

[0026] By providing the limiting block 11 , the limiting block 11 can prevent the sealing block 9 from deflecting during movement, thereby improving the sealing performance when the limiting block 11 abuts against the diaphragm body 10 .

[0027] Furthermore, the sealing cover 4 and the side surfaces of the valve body 1 are fixedly connected with fixing blocks 5 , and the fixing blocks 5 are internally threaded with bolts 6 .

[0028] By providing the bolts 6 and tightening the bolts 6 into the fixing block 5 , the sealing cover 4 can be tightly sealed on the valve body 1 .

[0029] Furthermore, a handle 7 is fixedly connected to the top of the threaded rod 8 , and the number of the handles 7 matches the number of the threaded rod 8 .

[0030] By providing the handle 7 , a worker can use the handle 7 to drive the threaded rod 8 to rotate.

[0031] Furthermore, the shape of the diaphragm body 10 matches the shape of the inner wall of the valve body 1 , and the shape of the sealing block 9 is set to be hemispherical.

[0032] Furthermore, the front and rear sides of the valve body 1 are fixedly connected with diversion pipes 2 , and one end of the two diversion pipes 2 is connected to the inside of the valve body 1 .

[0033] Furthermore, the size of the sealing ring 12 matches the size of the liquid inlet pipe 3 , and the lower end surface of the diaphragm body 10 overlaps the upper end surface of the sealing ring 12 .

[0034] The working principle of the utility model is as follows: first, the staff covers the sealing cover 4 on the valve body 1 and tightens the bolt 6 into the fixing block 5, which can improve the sealing performance of the connection between the sealing cover 4 and the valve body 1. During operation, the liquid inlet pipe 3 can transport liquid into the valve body 1. The staff can use the handle 7 to drive the threaded rod 8 to rotate clockwise, and the threaded rod 8 can drive the sealing block 9 to move downward. The sealing block 9 can squeeze the diaphragm body 10 downward and press it against the sealing ring 12, so that different shunt pipes 2 can be closed;

[0035] Compared with the prior art, the flow rates of the two shunt pipes 2 can be controlled separately, thereby improving the practicability of the device.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A diaphragm valve body and a diaphragm valve, comprising a valve body (1), characterized in that: The upper end face of the valve body (1) is sealed with a sealing cover (4), the inner thread of the sealing block (9) is connected to a threaded rod (8), the bottom end of the threaded rod (8) is rotatably connected to the sealing block (9), the inner side of the valve body (1) is fixedly connected to a limit block (11), the side of the sealing block (9) is slidably connected and fits with the side of the limit block (11), the lower end face of the valve body (1) is fixedly connected to a liquid inlet pipe (3), the top end of the liquid inlet pipe (3) is connected to the inner side of the valve body (1), the inner side of the valve body (1) is fixedly connected to a sealing ring (12), the inner wall of the valve body (1) is fixedly connected to a diaphragm body (10), and the lower end face of the sealing block (9) abuts against the upper end face of the diaphragm body (10).

2. A diaphragm valve body and a diaphragm valve according to claim 1, characterized in that: The sealing cover (4) and the side surface of the valve body (1) are both fixedly connected with a fixing block (5), and the fixing block (5) is internally threadedly connected with a bolt (6).

3. A diaphragm valve body and a diaphragm valve according to claim 1, characterized in that: The top end of the threaded rod (8) is fixedly connected to a handle (7), and the number of the handles (7) matches the number of the threaded rods (8).

4. A diaphragm valve body and a diaphragm valve according to claim 1, characterized in that: The shape of the diaphragm body (10) matches the shape of the inner wall of the valve body (1), and the shape of the sealing block (9) is set to be hemispherical.

5. The diaphragm valve body and the diaphragm valve according to claim 1, characterized in that: The front and rear sides of the valve body (1) are both fixedly connected with diversion pipes (2), and one end of the two diversion pipes (2) is connected to the inside of the valve body (1).

6. The diaphragm valve body and the diaphragm valve according to claim 1, characterized in that: The size of the sealing ring (12) matches the size of the liquid inlet pipe (3), and the lower end surface of the diaphragm body (10) overlaps the upper end surface of the sealing ring (12).

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