Steel ball valve

Abstract

The utility model relates to the technical field of ball valves, and provides a steel ball valve which comprises a valve body, a rotating column is rotationally connected to the interior of the valve body, a handle is fixedly connected to the top of the rotating column, a gasket is fixedly connected to the surface of the rotating column, and a forward and reverse screw rod rotationally connected with the valve body is arranged on the side face of the rotating column. The surface of the forward and reverse screw rod is in threaded connection with two sets of fastening plates, guide pipes are fixedly connected to the two sides of the valve body, and rubber rings are fixedly connected to one sides of the two sets of guide pipes. The two sets of fastening plates are controlled to move reversely along the surface of the rotating column, by arranging the gasket, when the fastening plates move to the position where the fastening plates are tightly attached to the gasket, the friction resistance of the rotating column can be enhanced, the purpose of limiting the rotating column is achieved, and therefore the handle is prevented from being touched by mistake.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a steel ball valve. Background Technique

[0002] A ball valve is a valve in which the opening and closing part (ball) is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids. Among them, the hard-sealed V-type ball valve has a strong shearing force between its V-type ball core and the metal valve seat welded with hard alloy. It is especially suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion and flow direction switching of the medium on the pipeline, but also close any channel to connect the other two channels. This type of valve should generally be installed horizontally in the pipeline. Ball valves are divided into pneumatic ball valves, electric ball valves and manual ball valves according to the driving method.

[0003] After retrieval, the existing patent (publication number: CN218582320U) discloses a steel ball valve, which includes a ball valve body. Both sides of the ball valve body are communicated with connectors. A connecting pipe connected by threads is inserted into the connector. One end of the connecting pipe located inside the connector is fixed with a connecting rod, and the other end of the connecting rod is fixed with a filter screen plate; the bottom of the connector is communicated with a slag discharge pipe corresponding to the connecting rod, and the bottom end of the slag discharge pipe is threadedly connected with a sealing plug; one end of the connecting pipe located outside the connector is communicated with an external conduit. The structure of the utility model is simple and practical. When the impurities filtered out from the water source accumulate too much in the connector, they can be effectively discharged through the slag discharge pipe. The operation process is simple, avoiding the situation that the filter screen plate is blocked due to too many impurities, and ensuring that the water source can flow normally.

[0004] However, in the above solution, when the ball valve is in use, there is a lack of a component for limiting the handle. The handle is extremely easy to touch the personnel during the operation process of the personnel, resulting in accidental touch of the handle and rotation, which affects the use state of the ball valve.

[0005] In view of this, the utility model provides a steel ball valve. Content of the Utility Model

[0006] The utility model provides a steel ball valve, which solves the problem that in the related technology, when the ball valve is in use, there is a lack of a component for limiting the handle. The handle is extremely easy to touch the personnel during the operation process of the personnel, resulting in accidental touch of the handle and rotation, which affects the use state of the ball valve.

[0007] The technical solution of the utility model is as follows: A steel ball valve, including a valve body, a rotating column is rotatably connected inside the valve body, a handle is fixedly connected to the top of the rotating column, a gasket is fixedly connected to the surface of the rotating column, a positive and negative screw rod rotatably connected to the valve body is arranged on the side of the rotating column, two groups of fastening plates are threadedly connected to the surface of the positive and negative screw rod, guide pipes are fixedly connected to both sides of the valve body, and rubber rings are fixedly connected to one side of the two guide pipes.

[0008] Preferably, a limiting plate is fixedly connected inside the guide pipe, a spring is fixedly connected to one side of the limiting plate, a filter screen is attached to one side of the spring, a groove is arranged inside the filter screen, and a baffle fixedly connected to the guide pipe is attached to one side of the filter screen.

[0009] Preferably, anti-slip bumps are arranged on the surface of the gasket close to the fastening plate, the centers of the gasket and the rotating column are located at the same point, and the gasket is located on the movement track of the fastening plate.

[0010] Preferably, the fastening plates and the gasket are arranged in parallel, and the two groups of fastening plates form a reverse movement structure through the positive and negative screw rod.

[0011] Preferably, the rubber ring wraps the side of the guide pipe completely in a ring shape.

[0012] Preferably, the limiting plate and the filter screen are parallel to each other, and the limiting plate is located on the movement track of the filter screen.

[0013] Preferably, the spring is in a compressed state through the filter screen, and the filter screen is attached to the inner wall of the guide pipe.

[0014] Preferably, four groups of grooves and baffles are symmetrically arranged about the center of the filter screen, and the positions of the four groups of grooves correspond to the four groups of baffles.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] In the utility model, by setting the fastening plate, in order to avoid accidental touch of the handle during use, after rotation is completed, the positive and negative screw rod can be rotated to control the two groups of fastening plates to move in the opposite direction along the surface of the rotating column. By setting the gasket, when the fastening plate moves to a position where it is in close contact with the gasket, the frictional resistance of the rotating column can be enhanced to achieve the purpose of limiting the rotating column, so as to prevent accidental touch of the handle;

[0017] In the present utility model, a filter screen is provided to filter the liquid passing through itself. When it is necessary to disassemble the filter screen, the filter screen can be rotated to control the groove to rotate to a position corresponding to the baffle. At this time, under the elastic force of the spring, the filter screen will be pushed forward, so that the groove slides out from the baffle, achieving the purpose of quick disassembly. When the filter screen is in use, the baffle and the limiting plate will limit the filter screen to fix it inside the conduit and prevent displacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a schematic diagram of the internal structure of the conduit of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure of the limiting plate of the present utility model;

[0022] Figure 4 is a schematic diagram of the structure of the fastening plate of the present utility model.

[0023] In the figure: 1, valve body; 2, rotating column; 3, handle; 4, washer; 5, positive and negative lead screw; 6, fastening plate; 7, conduit; 8, rubber ring; 9, limiting plate; 10, spring; 11, filter screen; 12, groove; 13, baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model. Embodiment 1

[0025] A preferred embodiment of a steel ball valve provided by the present utility model is as Figures 1 to 4 shown: A steel ball valve includes a valve body 1, a rotating column 2 is rotatably connected inside the valve body 1, a handle 3 is fixedly connected to the top of the rotating column 2, a washer 4 is fixedly connected to the surface of the rotating column 2, a positive and negative lead screw 5 rotatably connected to the valve body 1 is arranged on the side of the rotating column 2, two groups of fastening plates 6 are threadedly connected to the surface of the positive and negative lead screw 5, conduits 7 are fixedly connected to both sides of the valve body 1, and rubber rings 8 are fixedly connected to one side of the two groups of conduits 7.

[0026] In this embodiment, anti-slip bumps are provided on the side of the washer 4 close to the fastening plate 6. The centers of the washer 4 and the rotating column 2 are located at the same point. The washer 4 is located on the movement track of the fastening plate 6. When the fastening plate 6 moves to a position where it is in close contact with the washer 4, the frictional resistance of the rotating column 2 can be enhanced, achieving the purpose of limiting the rotating column 2 and preventing the handle 3 from being accidentally touched.

[0027] In this embodiment, the fastening plate 6 and the washer 4 are arranged in parallel with each other. The two fastening plates 6 form a reverse movement structure through the left and right hand screw rod 5. Rotating the left and right hand screw rod 5 controls the two fastening plates 6 to move in the reverse direction along the surface of the rotating column 2, applying power to the movement of the fastening plate 6.

[0028] In this embodiment, the rubber ring 8 wraps the side of the conduit 7 in a ring shape. By setting the rubber ring 8, when connecting a water pipe to the side of the conduit 7, the rubber ring 8 can play a buffering role, avoiding the conduit 7 expanding due to heat and squeezing the water pipe. Embodiment 2

[0029] On the basis of Embodiment 1, a preferred embodiment of the steel ball valve provided by the present utility model is as Figures 1 to 4 shown: A limiting plate 9 is fixedly connected inside the conduit 7. A spring 10 is fixedly connected to one side of the limiting plate 9. A filter screen 11 is attached to one side of the spring 10. A groove 12 is provided inside the filter screen 11. A baffle 13 fixedly connected to the conduit 7 is attached to one side of the filter screen 11.

[0030] In this embodiment, the limiting plate 9 and the filter screen 11 are parallel to each other. The limiting plate 9 is located on the movement track of the filter screen 11. When the filter screen 11 is in use, the baffle 13 and the limiting plate 9 will limit the filter screen 11 to fix it inside the conduit 7 and prevent displacement.

[0031] In this embodiment, the spring 10 is in a compressed state through the filter screen 11. The filter screen 11 is in close contact with the inner wall of the conduit 7. Under the elastic force of the spring 10, the filter screen 11 will be pushed forward, so that the groove 12 slides out from the baffle 13, achieving the purpose of quick disassembly.

[0032] In this embodiment, four groups of grooves 12 and baffles 13 are symmetrically arranged about the center of the filter screen 11. The positions of the four groups of grooves 12 correspond to the four groups of baffles 13. When it is necessary to disassemble the filter screen 11, the filter screen 11 can be rotated to control the groove 12 to rotate to a position corresponding to the baffle 13, and then the filter screen 11 can be pushed out by the spring 10.

[0033] Working principle and usage process of the present utility model: First, the rotating column 2 can be controlled to rotate through the handle 3 to convert the opening or closing state of the valve body 1. To avoid accidental touch of the handle 3 during use, after rotation, the positive and negative lead screw 5 can be rotated to control the two sets of fastening plates 6 to move in the opposite direction along the surface of the rotating column 2. By setting the washer 4, when the fastening plate 6 moves to a position where it is in close contact with the washer 4, the frictional resistance of the rotating column 2 can be enhanced to limit the rotating column 2, thereby preventing accidental touch of the handle 3.

[0034] By setting the filter screen 11, the liquid passing through itself can be filtered. When the filter screen 11 needs to be removed, the filter screen 11 can be rotated to control the groove 12 to rotate to a position corresponding to the baffle 13. At this time, under the elastic force of the spring 10, the filter screen 11 will be pushed forward to slide the groove 12 out of the baffle 13, achieving the purpose of quick disassembly. When the filter screen 11 is in use, the baffle 13 and the limit plate 9 will limit the filter screen 11 to fix it inside the conduit 7 and prevent displacement.

[0035] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A steel ball valve, comprising a valve body (1), characterized in that, A rotating column (2) is rotatably connected inside the valve body (1). A handle (3) is fixedly connected to the top of the rotating column (2). A washer (4) is fixedly connected to the surface of the rotating column (2). A left - right screw rod (5) rotatably connected to the valve body (1) is arranged on the side of the rotating column (2). Two fastening plates (6) are threadedly connected to the surface of the left - right screw rod (5). Two conduits (7) are fixedly connected to both sides of the valve body (1). A rubber ring (8) is fixedly connected to one side of each of the two conduits (7).

2. A steel ball valve according to claim 1, characterized in that, A limiting plate (9) is fixedly connected inside the conduit (7). A spring (10) is fixedly connected to one side of the limiting plate (9). A filter screen (11) is attached to one side of the spring (10). A groove (12) is arranged inside the filter screen (11). A baffle (13) fixedly connected to the conduit (7) is attached to one side of the filter screen (11).

3. A steel ball valve according to claim 1, characterized in that, Anti - slip bumps are arranged on the surface of the washer (4) close to the fastening plate (6). The centers of the washer (4) and the rotating column (2) are at the same point. The washer (4) is located on the movement track of the fastening plate (6).

4. A steel ball valve according to claim 1, characterized in that, The fastening plate (6) and the washer (4) are arranged in parallel. The two fastening plates (6) form a reverse movement structure through the left - right screw rod (5).

5. A steel ball valve according to claim 1, characterized in that, The rubber ring (8) annularly wraps the side surface of the conduit (7) completely.

6. A steel ball valve according to claim 2, wherein, The limiting plate (9) and the filter screen (11) are parallel to each other. The limiting plate (9) is located on the movement track of the filter screen (11).

7. A steel ball valve according to claim 2, characterized in that, The spring (10) is in a compressed state through the filter screen (11). The filter screen (11) is in close contact with the inner wall of the conduit (7).

8. A steel ball valve according to claim 2, characterized in that, Four groups of the grooves (12) and the baffles (13) are symmetrically arranged about the center of the filter screen (11). The positions of the four groups of grooves (12) correspond to those of the four groups of baffles (13).

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