Anti-misoperation ball valve

Abstract

The utility model relates to the technical field of ball valves, and discloses an anti-misoperation ball valve which comprises a ball valve body, and a rotating valve plate used for controlling a spherical valve element to rotate is arranged at the upper end of the ball valve body in a rotating mode. A bearing assembly is arranged on the rotating valve plate, a rotating assembly is arranged on the right side of the bearing assembly, and a rotating valve rod is arranged on the rotating assembly. According to the anti-misoperation ball valve, the rotating valve rod is arranged to be of a foldable structure, so that the rotating valve rod can be folded and stored after being adjusted and rotated, the situation that the rotating valve rod is mistakenly operated is avoided, the rotating valve rod is arranged to be detachable, and therefore the rotating valve rod can be replaced when the rotating valve rod deforms; and the rotating valve rod and the extension plate can be clamped and fixed through the limiting rod, so that the rotating effect of the rotating valve rod during rotation can be guaranteed, and the situation that the rotating valve rod is folded during rotation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a misoperation-proof ball valve. Background Art

[0002] A ball valve is a valve body with a spherical valve core. The valve stem drives the spherical valve core to rotate, thereby achieving the purpose of cutting off, regulating or diverting the fluid. It has the advantages of fast opening and closing, small fluid resistance and good sealing performance, and is widely used in process pipelines in petrochemical, chemical, food, pharmaceutical and other industries.

[0003] At present, the patent with announcement number: CN207393997U discloses a ball valve, including a valve body, a valve ball, a middle seal, an end seal and a handle, wherein the valve ball is slidably fitted in the valve body, and the valve ball is sealed and connected to the valve body through the middle seal, the handle is fixedly connected to the valve ball through the fastener, the end seal is at least one, and the end of the valve body is used to be fixed to the pipeline through the end seal. There are two end seals, namely a first end seal and a second end seal, one end of the valve body is used to be fixed to a pipeline through the first end seal, and the other end of the valve body is used to be fixed to another pipeline through the second end seal. The end of the valve body can be fixed to the pipeline through the end seal. This connection method is not easy to generate metal dust when connecting the ball valve and the pipeline, so the material passing through the ball valve is not easy to be mixed with impurities due to the structure of the ball valve, so the ball valve can improve the safety of the transported material.

[0004] However, the following problems still exist in the current use of ball valves:

[0005] The above-mentioned ball valve can directly rotate the spherical valve core through the valve stem. Therefore, workers may accidentally touch the valve stem during walking or operation. The existing valve stem is usually set longer to save effort in rotating the valve core. It is not only easy to injure workers but also easy to cause the valve stem to be rotated by mistake, thereby affecting the on-off condition of the pipeline, that is, causing property loss. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a ball valve that prevents misoperation. By setting the valve stem as a folding structure, it will not affect workers passing by and can effectively prevent the valve stem from being operated.

[0007] The utility model provides the following technical solutions: an anti-misoperation ball valve, comprising a ball valve body, a rotating valve plate for controlling the rotation of a spherical valve core is rotatably provided on the upper end of the ball valve body; a receiving assembly is provided on the rotating valve plate, and a rotating assembly is provided on the right side of the receiving assembly, and a rotating valve stem is provided on the rotating assembly.

[0008] Furthermore, the receiving assembly includes a fixed plate and a connecting plate, the fixed plate is fixedly connected to the outer surface of the rotating valve plate, and the fixed plate and the connecting plate are connected to each other. Through the above structure, it is convenient to connect the fixed plate and the extension plate through the connecting plate.

[0009] Furthermore, the receiving assembly also includes an extension plate and fixing screws, and the connecting plate and the extension plate, the fixing screws are arranged through the extension plate, and the fixing screws are connected to the connecting plate through threaded holes opened on the connecting plate. Through the above structure, it is convenient to achieve stable installation and fixation between the extension plate and the connecting plate through the fixing screws.

[0010] Furthermore, the rotating assembly includes a fixed shaft and a positioning plate. The fixed shaft is installed on the right side of the connecting plate, and the outer surface of the fixed shaft is interconnected with the positioning plate. Through the above structure, it is convenient to fix the positioning plate on the fixed shaft.

[0011] Furthermore, the rotating assembly also includes a rotating ring plate and a vortex spring. The positioning plate is slidably connected to the rotating ring plate through a groove provided on the rotating ring plate, and the vortex spring is fixedly installed on the inner surface of the rotating ring plate. The vortex spring and the outer surface of the fixed rotating shaft are interconnected. Through the above structure, the rotating ring plate can be supported and limited under the action of the positioning plate to prevent the rotating ring plate from slipping.

[0012] Furthermore, a positioning assembly is provided on the rotating valve stem, and the positioning assembly includes a limiting rod and a limiting spring, and the limiting rod is arranged through the lower end of the rotating valve stem, the rotating valve stem and the limiting spring are connected to each other, and the limiting spring is fixedly connected to the limiting rod. Through the above structure, it is convenient to realize the clamping and fixing between the rotating valve stem and the extension plate through the limiting rod.

[0013] Furthermore, an annular groove is formed on the rotating ring plate, and the rotating ring plate forms a rotating mechanism with the fixed rotating shaft through the vortex spring. Through the above structure, it is convenient to drive the rotating valve stem to rotate stably through the rotating ring plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The anti-misoperation ball valve arranges the rotating valve stem as a foldable structure, so that the rotating valve stem can be folded and stored after adjusting the rotation, thereby avoiding the rotating valve stem from being misoperated, and the rotating valve stem is arranged to be detachable, so that the rotating valve stem can be replaced when the rotating valve stem is deformed, and the rotating valve stem and the extension plate can be clamped and fixed by a limiting rod, thereby ensuring the rotation effect of the rotating valve stem during rotation, and avoiding the rotating valve stem from folding during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main three-dimensional structure of the ball valve body of the utility model;

[0017] Figure 2 This is a schematic diagram of the main three-dimensional cross-sectional structure of the rotating valve stem of the utility model;

[0018] Figure 3 This is a rear view stereoscopic structural diagram of the rotating valve plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the receiving component of the utility model;

[0020] Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the rotating assembly of the utility model.

[0021] In the figure: 1. ball valve body; 2. rotating valve plate; 3. receiving assembly; 301. fixed plate; 302. connecting plate; 303. extension plate; 304. fixing screw; 4. rotating assembly; 401. fixed shaft; 402. positioning plate; 403. rotating ring plate; 404. vortex spring; 5. rotating valve stem; 6. positioning assembly; 601. limiting rod; 602. limiting spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-Figure 5The utility model provides a technical solution: an anti-misoperation ball valve, comprising a ball valve body 1, a rotating valve plate 2 for controlling the rotation of a spherical valve core is rotatably provided on the upper end thereof; a rotating valve stem 5 is provided on a rotating assembly 4; the rotating assembly 4 comprises a fixed rotating shaft 401 and a positioning plate 402, the fixed rotating shaft 401 is installed on the right side of a connecting plate 302, and the outer surface of the fixed rotating shaft 401 is connected to the positioning plate 402; the rotating assembly 4 also comprises a rotating ring plate 403 and a vortex spring 404, the positioning plate 402 forms a sliding connection with the rotating ring plate 403 through a groove provided on the rotating ring plate 403 The rotating valve stem 5 is connected to the rotating ring plate 403, and the vortex spring 404 is fixedly installed on the inner surface of the rotating ring plate 403, and the vortex spring 404 is connected to the outer surface of the fixed rotating shaft 401; an annular groove is provided on the rotating ring plate 403, and the rotating ring plate 403 and the fixed rotating shaft 401 form a rotating mechanism through the vortex spring 404; a positioning assembly 6 is provided on the rotating valve stem 5, and the positioning assembly 6 includes a limiting rod 601 and a limiting spring 602, and the limiting rod 601 is arranged through the lower end of the rotating valve stem 5, the rotating valve stem 5 and the limiting spring 602 are connected to each other, and the limiting spring 602 is fixedly connected to the limiting rod 601;

[0024] When the ball valve core needs to be rotated, the limiting rod 601 is pulled to make the limiting rod 601 start to move away from the rotating valve stem 5. Because the limiting spring 602 is installed on the limiting rod 601, and the limiting spring 602 is connected to the rotating valve stem 5, at this time, as the limiting rod 601 is pulled, the limiting spring 602 begins to be stretched and deformed, and then the rotating valve stem 5 is rotated. Because the rotating valve stem 5 is fixedly connected to the rotating ring plate 403, the rotating ring plate 403 begins to rotate around the fixed rotating shaft 401. Because the fixed rotating shaft 401 is externally installed with a vortex spring 404, and the vortex spring 404 is connected to the rotating ring plate 403, at this time, as the rotating ring plate 403 rotates, the vortex spring 404 begins to be squeezed and deformed (under the action of the positioning plate 402, the rotating ring plate 403 can be supported, thereby ensuring that the rotating ring plate 403 is stable). When the valve stem 5 is rotated to a horizontal state, the limiting rod 601 is released. When the limiting spring 602 is deformed again, the limiting spring 602 starts to drive the limiting rod 601 to be pulled until the limiting rod 601 fits with the positioning cylindrical groove starting from the side of the extension plate 303. At this time, the extension plate 303 and the rotating valve stem 5 can be clamped and fixed, thereby avoiding the rotating valve stem 5 from rotating when rotating, that is, facilitating the rotation of the rotating valve stem 5, so as to achieve the purpose of rotating the valve core. When the adjustment is completed, the limiting rod 601 is pulled so that the limiting rod 601 is no longer fitted with the positioning cylindrical groove starting from the side of the extension plate 303, and then the vortex spring 404 starts to restore its deformation. At this time, the rotating valve stem 5 can be folded and stored to achieve the purpose of anti-operation.

[0025] A receiving assembly 3 is provided on the rotating valve plate 2, and a rotating assembly 4 is provided on the right side of the receiving assembly 3; the receiving assembly 3 includes a fixing plate 301 and a connecting plate 302, the fixing plate 301 is fixedly connected to the outer surface of the rotating valve plate 2, and the fixing plate 301 and the connecting plate 302 are connected to each other; the receiving assembly 3 also includes an extension plate 303 and a fixing screw 304, and the connecting plate 302 and the extension plate 303, the fixing screw 304 is penetrated and arranged on the extension plate 303, and the fixing screw 304 is connected to the connecting plate 302 through a threaded hole opened on the connecting plate 302;

[0026] When the vortex spring 404 and the limiting spring 602 are deformed due to overwork and the rotating valve stem 5 is deformed, the fixing screw 304 is rotated and the fixing screw 304 begins to move away from the extension plate 303 until the fixing screw 304 is no longer connected to the threaded hole opened on the connecting plate 302. Then the extension plate 303 can be pulled and the extension plate 303 begins to move away from the fixed plate 301. Because the connecting plate 302 is installed on the fixed plate 301, the connecting plate 302 begins to fit into the square groove opened on the left side of the extension plate 303, so as to achieve the purpose of disassembling and replacing the extension plate 303.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball valve for preventing misoperation, comprising a ball valve body (1), the upper end of which is rotatably provided with a rotating valve plate (2) for controlling the rotation of a spherical valve core; characterized in that: Also includes: A receiving assembly (3) is arranged on the rotating valve plate (2), a rotating assembly (4) is arranged on the right side of the receiving assembly (3), and a rotating valve stem (5) is arranged on the rotating assembly (4).

2. The anti-misoperation ball valve according to claim 1, characterized in that: The receiving assembly (3) comprises a fixed plate (301) and a connecting plate (302); the fixed plate (301) is fixedly connected to the outer surface of the rotating valve plate (2), and the fixed plate (301) and the connecting plate (302) are connected to each other.

3. The anti-misoperation ball valve according to claim 2, characterized in that: The receiving assembly (3) further comprises an extension plate (303) and a fixing screw (304), and the connecting plate (302) and the extension plate (303) are connected. The fixing screw (304) is arranged through the extension plate (303), and the fixing screw (304) is connected to the connecting plate (302) through a threaded hole provided on the connecting plate (302).

4. The anti-misoperation ball valve according to claim 3, characterized in that: The rotating assembly (4) comprises a fixed rotating shaft (401) and a positioning plate (402). The fixed rotating shaft (401) is installed on the right side of the connecting plate (302), and the outer surface of the fixed rotating shaft (401) is connected to the positioning plate (402).

5. The anti-misoperation ball valve according to claim 4, characterized in that: The rotating assembly (4) further comprises a rotating ring plate (403) and a vortex spring (404); the positioning plate (402) is slidably connected to the rotating ring plate (403) via a groove provided on the rotating ring plate (403); the vortex spring (404) is fixedly mounted on the inner surface of the rotating ring plate (403); and the vortex spring (404) is connected to the outer surface of the fixed rotating shaft (401).

6. The anti-misoperation ball valve according to claim 5, characterized in that: The rotating valve stem (5) is provided with a positioning assembly (6), and the positioning assembly (6) comprises a limiting rod (601) and a limiting spring (602), and the limiting rod (601) is arranged through the lower end of the rotating valve stem (5), the rotating valve stem (5) and the limiting spring (602) are connected to each other, and the limiting spring (602) is fixedly connected to the limiting rod (601).

7. The anti-misoperation ball valve according to claim 5, characterized in that: The rotating ring plate (403) is provided with an annular groove, and the rotating ring plate (403) forms a rotating mechanism with the fixed rotating shaft (401) via a vortex spring (404).

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