Fixed ball valve capable of being opened and closed without friction

Abstract

The utility model relates to the technical field of pipeline valves, in particular to a friction-free opening and closing fixed ball valve which comprises a valve body, a pipeline is fixedly connected to the side face of the valve body, one end of the pipeline is communicated with the interior of the valve body, an installation plate is fixedly connected to one end of the pipeline, and a cover plate is connected to the upper end face of the valve body in a sealed mode. A sealing block is fixedly connected to the lower end face of the cover plate, a limiting block is fixedly connected to the side face of the sealing block, the side face of the sealing block is in sliding connection with the inner wall of the valve body and is attached to the inner wall of the valve body, a ball valve body is jointly and rotationally connected between the valve body and the sealing block, and a rotating shaft is fixedly connected to the surface of the ball valve body. The top end of the rotating shaft penetrates through the sealing block and the upper end face of the cover plate and is fixedly connected with a handle. The installation plate is installed at the working position through the first threaded rod, the sealing ring between the installation plate and the working position can reduce the phenomenon of water leakage, and the sealing performance of the device in the working process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline valves, in particular to a frictionless opening and closing fixed ball valve. Background Art

[0002] Patent No. CN208778743U discloses a fixed ball valve. The utility model has a reasonable structural design and is convenient for fixing the main valve body on the support body.

[0003] However, when the above-mentioned existing fixed ball valve is in use, a circular connecting plate is provided on the right side of the main valve body, a through hole is opened inside the circular connecting plate to connect the main valve body with the water outlet pipe, a second connecting ear is provided on the main valve body, and a first connecting ear is provided on the circular connecting plate. The first connecting ear and the second connecting ear are connected by bolts. This connection makes the ball valve more convenient and quick to install and disassemble. A waterproof rubber pad is provided between the circular connecting plate and the main valve body, and a first strip groove and a second strip groove are provided on the main valve body. The device connects the water pipe to the aluminum joint, and due to the lack of a sealing structure, it is easy to cause water leakage at the connection.

[0004] In order to solve the above problems, the utility model proposes a frictionless opening and closing fixed ball valve. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a frictionless opening and closing fixed ball valve to solve the technical problem in the prior art that "when in use, a circular connecting plate is provided on the right side of the main valve body, a through hole is provided inside the circular connecting plate to connect the main valve body with the water outlet pipe, a second connecting ear is provided on the main valve body, a first connecting ear is provided on the circular connecting plate, the first connecting ear and the second connecting ear are connected by bolts, and this connection makes the ball valve more convenient and quick to install and disassemble, a waterproof rubber pad is provided between the circular connecting plate and the main valve body, a first strip groove and a second strip groove are provided on the main valve body, and the device connects the water pipe to the aluminum joint, which is prone to water leakage at the connection due to the lack of a sealing structure."

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: it includes a valve body, a side surface of the valve body is fixedly connected with a pipe, one end of the pipe is connected to the valve body, one end of the pipe is fixedly connected with a mounting plate, the upper end surface of the valve body is sealingly connected with a cover plate, the lower end surface of the cover plate is fixedly connected with a sealing block, the side surface of the sealing block is fixedly connected with a limiting block, the side surface of the sealing block is slidingly connected and fits with the inner wall of the valve body, a ball valve body is rotatably connected between the valve body and the sealing block, the surface of the ball valve body is fixedly connected with a rotating shaft, the top end of the rotating shaft simultaneously passes through the sealing block and the upper end surface of the cover plate and is fixedly connected with a handle, a limiting rod is fixedly connected in the valve body, and a flow hole is opened on the surface of the ball valve body.

[0007] As a preferred technical solution of the utility model, the cover plate and the side surface of the valve body are fixedly connected with a fixing block, and the fixing block is internally threadedly connected with a second threaded rod.

[0008] As a preferred technical solution of the utility model, a sealing ring is fixedly connected to one side of the mounting plate, and a first threaded rod is internally threadedly connected to the mounting plate.

[0009] As a preferred technical solution of the utility model, a slide groove is provided in the valve body, and the side surface of the limit block is slidably connected and fits with the inner wall of the slide groove.

[0010] As a preferred technical solution of the utility model, a limiting groove is provided on the surface of the ball valve body, and the surface of the limiting rod is rotatably connected to the inner wall of the limiting groove.

[0011] As a preferred technical solution of the utility model, a stop rod is fixedly connected to the upper end surface of the cover plate, and the diameter of the flow hole matches the inner diameter of the pipeline.

[0012] The utility model provides a frictionless opening and closing fixed ball valve, which has the following beneficial effects:

[0013] The mounting plate is mounted at the working position through the first threaded rod, and the sealing ring between the mounting plate and the working position can reduce water leakage and improve the sealing performance of the device during operation. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 A schematic diagram of the structure of a limit rod is provided for the utility model;

[0016] Figure 3 The utility model provides a structural schematic diagram of the rotating shaft;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the valve body proposed in the utility model;

[0018] Figure 5 The utility model provides a cross-sectional structural diagram of a ball valve body;

[0019] Figure 6 The utility model provides a structural schematic diagram of a ball valve body.

[0020] In the figure: 1 valve body, 2 pipeline, 3 mounting plate, 4 sealing ring, 5 first threaded rod, 6 cover plate, 7 fixing block, 8 second threaded rod, 9 handle, 10 stop rod, 11 limit block, 12 slide groove, 13 limit rod, 14 limit groove, 15 flow hole, 16 ball valve body, 17 sealing block, 18 rotating shaft. DETAILED DESCRIPTION

[0021] 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 in conjunction with 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 used to limit the present invention.

[0022] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the utility model, rather than implying that each embodiment of the utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0023] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments:

[0024] refer to Figure 1-6 A frictionless opening and closing fixed ball valve comprises a valve body 1, a pipe 2 is fixedly connected to the side of the valve body 1, one end of the pipe 2 is connected to the inside of the valve body 1, a mounting plate 3 is fixedly connected to the one end of the pipe 2, a cover plate 6 is sealingly connected to the upper end surface of the valve body 1, a sealing block 17 is fixedly connected to the lower end surface of the cover plate 6, a limiting block 11 is fixedly connected to the side of the sealing block 17, the side of the sealing block 17 is slidingly connected and fits with the inner wall of the valve body 1, a ball valve body 16 is rotatably connected between the valve body 1 and the sealing block 17, a rotating shaft 18 is fixedly connected to the surface of the ball valve body 16, the top end of the rotating shaft 18 simultaneously penetrates the sealing block 17 and is fixedly connected to the upper end surface of the cover plate 6 with a handle 9, a limiting rod 13 is fixedly connected to the inside of the valve body 1, and a flow hole 15 is provided on the surface of the ball valve body 16.

[0025] By providing the limiting rod 13 , the limiting rod 13 can prevent the ball valve body 16 from being deflected when rotating in the valve body 1 .

[0026] Furthermore, the cover plate 6 and the side surface of the valve body 1 are both fixedly connected with a fixing block 7 , and the fixing block 7 is internally threadedly connected with a second threaded rod 8 .

[0027] By providing the second threaded rod 8 , when the second threaded rod 8 is tightened in the fixing block 7 , the cover plate 6 can be sealed and connected to the valve body 1 .

[0028] Furthermore, a sealing ring 4 is fixedly connected to one side of the mounting plate 3 , and a first threaded rod 5 is internally threadedly connected to the mounting plate 3 .

[0029] By providing the sealing ring 4, the sealing ring 4 can prevent water leakage from occurring when the pipe 2 is connected.

[0030] Furthermore, a slide groove 12 is provided in the valve body 1 , and the side surface of the limit block 11 is slidably connected and fits with the inner wall of the slide groove 12 .

[0031] By providing the slide groove 12 , the slide groove 12 can improve the stability of the sealing block 17 in the valve body 1 and avoid deviation when installing the sealing block 17 .

[0032] Furthermore, a limiting groove 14 is provided on the surface of the ball valve body 16 , and the surface of the limiting rod 13 is rotatably connected to the inner wall of the limiting groove 14 .

[0033] Furthermore, a stop rod 10 is fixedly connected to the upper end surface of the cover plate 6 , and the diameter of the flow hole 15 matches the inner diameter of the pipeline 2 .

[0034] By providing the stop rods 10, the handle 9 can only be rotated between the stop rods 10, which can facilitate the staff to control the flow rate.

[0035] The working principle of the utility model is as follows: first, the staff tightens the first threaded rod 5 on the mounting plate 3 and the working position. During operation, when the handle 9 is parallel to the pipeline 2, the flow hole 15 is aligned with the pipeline 2. At this time, the flow rate of the liquid reaches the maximum. The staff only needs to turn the handle 9 clockwise. The handle 9 drives the ball valve body 16 to rotate clockwise through the rotating shaft 18, which can reduce the distance between the flow hole 15 and the pipeline 2 to reduce the liquid flow rate. When the pipeline 2 needs to be closed, the staff turns the handle 9 to the stop rod 10 on the right side. At this time, the handle 9 is perpendicular to the pipeline 2, and there is no gap between the flow hole 15 and the pipeline 2, so the pipeline 2 can be closed.

[0036] Compared with the prior art, the sealing ring 4 between the mounting plate 3 and the working position can reduce the water leakage phenomenon and improve the sealing performance of the device during operation.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A frictionless opening and closing fixed ball valve, comprising a valve body (1), characterized in that: A pipe (2) is fixedly connected to the side of the valve body (1), one end of the pipe (2) is connected to the inside of the valve body (1), one end of the pipe (2) is fixedly connected to a mounting plate (3), the upper end surface of the valve body (1) is sealingly connected to a cover plate (6), the lower end surface of the cover plate (6) is fixedly connected to a sealing block (17), the side of the sealing block (17) is fixedly connected to a limiting block (11), the side of the sealing block (17) is slidably connected to and fits with the inner wall of the valve body (1), a ball valve body (16) is rotatably connected between the valve body (1) and the sealing block (17), the surface of the ball valve body (16) is fixedly connected to a rotating shaft (18), the top end of the rotating shaft (18) simultaneously penetrates the sealing block (17) and is fixedly connected to a handle (9) on the upper end surface of the cover plate (6), a limiting rod (13) is fixedly connected to the inside of the valve body (1), and a flow hole (15) is provided on the surface of the ball valve body (16).

2. A frictionless opening and closing fixed ball valve according to claim 1, characterized in that: The cover plate (6) and the side surface of the valve body (1) are both fixedly connected with a fixing block (7), and the fixing block (7) is internally threadedly connected with a second threaded rod (8).

3. A frictionless opening and closing fixed ball valve according to claim 1, characterized in that: A sealing ring (4) is fixedly connected to one side of the mounting plate (3), and a first threaded rod (5) is internally threadedly connected to the mounting plate (3).

4. A frictionless opening and closing fixed ball valve according to claim 1, characterized in that: A slide groove (12) is provided in the valve body (1), and the side surface of the limit block (11) is slidably connected and fits with the inner wall of the slide groove (12).

5. The frictionless opening and closing fixed ball valve according to claim 1, characterized in that: A limiting groove (14) is provided on the surface of the ball valve body (16), and the surface of the limiting rod (13) is rotatably connected to the inner wall of the limiting groove (14).

6. The frictionless opening and closing fixed ball valve according to claim 1, characterized in that: A stop rod (10) is fixedly connected to the upper end surface of the cover plate (6), and the diameter of the flow hole (15) matches the inner diameter of the pipeline (2).

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