False opening prevention ball valve

Abstract

The utility model discloses a mistaken opening prevention ball valve which comprises a valve body and a valve rod, the valve rod is located above the valve body, a positioning pipe is fixedly connected to the top of the valve body and located on the outer side of the valve rod, a movable barrel is slidably connected to the outer surface of the positioning pipe, and a positioning disc is fixedly connected to the outer surface of the positioning pipe and located in an inner cavity of the movable barrel. The valve body and the valve rod are arranged to jointly form a ball valve, the positioning pipe, the movable cylinder, the positioning disc, the positioning block, the limiting groove, the limiting block and the spring are arranged, so that the valve rod can be conveniently pressed, positioned and rotated, and the effect of preventing the valve rod from being opened by mistake is achieved; when the limiting groove and the limiting block are extruded and inserted, a sound alarm can be given to the limiting groove and the limiting block, so that the mistaken opening prevention effect is further achieved, through the arrangement of the structure, the ball valve has the advantage that mistaken opening prevention use is facilitated when the ball valve is used, and therefore the use requirements of customers can be met.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a ball valve designed to prevent accidental opening. Background Technology

[0002] A ball valve is a valve in which the valve stem drives the valve to rotate around the ball valve axis. It can also be used for fluid regulation and control. Among them, the hard-seal V-type ball valve has a strong shearing force between the V-shaped ball core and the metal valve seat with hard alloy overlay, making it particularly suitable for media containing fibers, small solid particles, etc. Multi-port ball valves can not only flexibly control the merging, splitting and switching of the flow direction of the media in the pipeline, but also close any channel and connect the other two channels.

[0003] Traditional ball valves, in order to prevent accidental opening, mostly use a locking pin to lock the valve stem. This requires repeatedly opening and closing the locking pin every time the valve changes its operating state. This method of preventing accidental opening is cumbersome and reduces the efficiency of opening or closing the ball valve, thus failing to meet customer needs. Therefore, we propose an anti-accidental opening ball valve to solve the above problems. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a ball valve that prevents accidental opening, which has the advantage of ball valves being easy to use and prevents accidental opening, and solves the problem that traditional ball valves are not easy to use and prevent accidental opening.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ball valve for preventing accidental opening, comprising a valve body and a valve stem, wherein the valve stem is located above the valve body, a positioning tube is fixedly connected to the top of the valve body and to the outside of the valve stem, a movable cylinder is slidably connected to the outer surface of the positioning tube, a positioning disc is fixedly connected to the outer surface of the positioning tube and to the inner cavity of the movable cylinder, a positioning block is fixedly connected to the top of the inner cavity of the movable cylinder, a limit groove is formed at the bottom of the positioning block, a through groove is formed at the top of the positioning block, an airbag is fixedly installed in the inner cavity of the through groove, a whistle is provided at the top of the airbag, a limit block that cooperates with the limit groove is fixedly connected to the top of the valve stem, and a spring is provided on the outer surface of the positioning tube.

[0006] Preferably, the top of the movable cylinder has a through hole for use with a whistle, and the whistle is located in the inner cavity of the through hole.

[0007] Preferably, a rotating handle is fixedly connected to the top of the outer surface of the movable cylinder, and the outer surface of the rotating handle is provided with anti-slip texture.

[0008] Preferably, the outer surface of the movable cylinder is tightly fitted to the connection of the positioning tube, and the bottom of the airbag extends into the inner cavity of the limiting groove.

[0009] Preferably, flanges are provided on both the left and right sides of the valve body, and the flanges are welded to the valve body.

[0010] Preferably, the limiting groove is hexagonal and the limiting block is hexagonal.

[0011] Preferably, the bottom of the spring is fixedly connected to the connection of the positioning plate, and the top of the spring is tightly fitted to the connection of the movable cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model, by setting a valve body and valve stem, can jointly construct a ball valve. By setting a positioning tube, movable cylinder, positioning disc, positioning block, limiting groove, limiting block and spring, the valve stem can be easily pressed and positioned for rotation, so as to achieve the effect of preventing accidental opening. By setting a through groove, air bag and whistle, the limiting groove and limiting block can be squeezed and inserted to provide an audible warning, which further enhances the effect of preventing accidental opening. With the above structure, it has the advantage of ball valves in terms of convenient anti-accidental opening during use, solving the problem of traditional ball valves being inconvenient to prevent accidental opening during use, thus meeting the needs of customers. Attached Figure Description

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

[0015] Figure 2 This is a cross-sectional view of the movable cylinder structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the positioning tube structure of this utility model;

[0017] Figure 4 This is a perspective view of the connection between the valve stem and the limiting block structure of this utility model.

[0018] In the diagram: 1. Valve body; 2. Valve stem; 3. Positioning tube; 4. Moving cylinder; 5. Positioning disc; 6. Positioning block; 7. Limiting groove; 8. Through groove; 9. Airbag; 10. Whistle; 11. Limiting block; 12. Spring; 13. Through hole; 14. Rotary handle; 15. Flange. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 A ball valve designed to prevent accidental opening includes a valve body 1 and a valve stem 2. The valve stem 2 is located above the valve body 1. A positioning tube 3 is fixedly connected to the top of the valve body 1 and to the outside of the valve stem 2. A movable cylinder 4 is slidably connected to the outer surface of the positioning tube 3. A positioning disc 5 is fixedly connected to the outer surface of the positioning tube 3 and to the inner cavity of the movable cylinder 4. A positioning block 6 is fixedly connected to the top of the inner cavity of the movable cylinder 4. A limit groove 7 is formed at the bottom of the positioning block 6. A through groove 8 is formed at the top of the positioning block 6. An air bladder 9 is fixedly installed in the inner cavity of the through groove 8. A whistle 10 is provided at the top of the air bladder 9. A limit block 11 that cooperates with the limit groove 7 is fixedly connected to the top of the valve stem 2. A spring 12 is provided on the outer surface of the positioning tube 3.

[0021] In this embodiment: the present invention, by setting valve body 1 and valve stem 2, can jointly construct a ball valve. By setting positioning tube 3, movable cylinder 4, positioning disc 5, positioning block 6, limiting groove 7, limiting block 11 and spring 12, the valve stem 2 can be easily pressed, positioned and rotated to achieve the effect of preventing accidental opening. By setting through groove 8, air bag 9 and whistle 10, the limiting groove 7 and limiting block 11 can be pressed and inserted to provide an audible warning, further achieving the effect of preventing accidental opening. With the above structure, the ball valve has the advantage of being easy to use and preventing accidental opening, which solves the problem of traditional ball valves being inconvenient to use and prevent accidental opening, thus meeting the needs of customers.

[0022] As a technical optimization of this utility model, the top of the movable cylinder 4 is provided with a through hole 13 for use with the whistle 10, and the whistle 10 is located in the inner cavity of the through hole 13.

[0023] In this embodiment, by providing a through hole 13, the sound of the whistle 10 can be easily transmitted.

[0024] As a technical optimization of this utility model, a rotating handle 14 is fixedly connected to the top of the outer surface of the movable cylinder 4, and the outer surface of the rotating handle 14 is provided with anti-slip texture.

[0025] In this embodiment, by setting the handle 14 and the anti-slip texture, it is convenient for the staff to press and rotate the movable cylinder 4 to move.

[0026] As a technical optimization of this utility model, the outer surface of the movable cylinder 4 is tightly fitted to the connection of the positioning tube 3, and the bottom of the airbag 9 extends into the inner cavity of the limiting groove 7.

[0027] In this embodiment, by setting the bottom of the airbag 9 to extend into the inner cavity of the limiting groove 7, the limiting block 11 can easily squeeze the airbag 9.

[0028] As a technical optimization of this utility model, flanges 15 are provided on both the left and right sides of the valve body 1, and the flanges 15 and the valve body 1 are welded together.

[0029] In this embodiment: by setting flange 15, the valve body 1 can be easily installed with external pipelines.

[0030] As a technical optimization of this utility model, the limiting groove 7 is hexagonal and the limiting block 11 is hexagonal.

[0031] As a technical optimization of this utility model, the bottom of the spring 12 is fixedly connected to the connection of the positioning plate 5, and the top of the spring 12 is tightly fitted to the connection of the movable cylinder 4.

[0032] Working principle: When the ball valve is in the closed or open position, when the handle 14 is rotated by an external force, the handle 14 drives the movable cylinder 4 to rotate on the outer surface of the positioning tube 3, so that the movable cylinder 4 will not drive the valve stem 2 to rotate, thereby achieving the effect of preventing the ball valve from being opened by accident. At the same time, when the handle 14 is pressed down by an external force, the handle 14 drives the movable cylinder 4 to slide down on the outer surface of the positioning tube 3 to compress the spring 12. At the same time, the movable cylinder 4 drives the positioning block 6 to move down, so that the limiting block 11 inserts into the inner cavity of the limiting groove 7 to compress the airbag 9. At the same time, when the airbag 9 is compressed, it blows air onto the whistle 10, thereby making the whistle 10 sound an alarm, which further achieves the effect of preventing the ball valve from being opened by accident, as well as providing compression protection for the ball valve.

[0033] When the ball valve needs to be opened or closed, the operator presses down on the adjustment handle 14, causing the handle 14 to move the movable cylinder 4 downward on the outer surface of the positioning tube 3, compressing the spring 12. At the same time, the movable cylinder 4 moves the positioning block 6 downward, aligning the limit block 11 with the limit groove 7. Simultaneously, the limit block 11 inserts into the inner cavity of the limit groove 7, compressing the airbag 9. When the airbag 9 is compressed, it blows air into the whistle 10, causing the whistle 10 to sound an alarm, allowing the operator to notice that the limit block 11 and the limit groove 7 have been successfully connected. Then, the operator rotates the handle 14, causing the handle 14 to rotate the movable cylinder 4, which in turn rotates the positioning block 6. The positioning block 6 then rotates the limit block 11, causing the limit block 11 to rotate the valve stem 2. This allows the valve stem 2 and the valve body 1 to work together to open and close the ball valve. This device is simple to operate and easy to use to prevent accidental opening, thus meeting the needs of customers.

[0034] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A ball valve designed to prevent accidental opening, comprising a valve body (1) and a valve stem (2), characterized in that: The valve stem (2) is located above the valve body (1). A positioning tube (3) is fixedly connected to the top of the valve body (1) and to the outside of the valve stem (2). A movable cylinder (4) is slidably connected to the outer surface of the positioning tube (3). A positioning disc (5) is fixedly connected to the outer surface of the positioning tube (3) and to the inner cavity of the movable cylinder (4). A positioning block (6) is fixedly connected to the top of the inner cavity of the movable cylinder (4). A limiting groove (7) is opened at the bottom of the positioning block (6). A through groove (8) is opened at the top of the positioning block (6). An airbag (9) is fixedly installed in the inner cavity of the through groove (8). A whistle (10) is set at the top of the airbag (9). A limiting block (11) that cooperates with the limiting groove (7) is fixedly connected to the top of the valve stem (2). A spring (12) is set on the outer surface of the positioning tube (3).

2. The anti-accidental opening ball valve according to claim 1, characterized in that: The top of the movable cylinder (4) is provided with a through hole (13) for use with the whistle (10), and the whistle (10) is located in the inner cavity of the through hole (13).

3. The anti-accidental opening ball valve according to claim 1, characterized in that: A rotating handle (14) is fixedly connected to the top of the outer surface of the movable cylinder (4), and the outer surface of the rotating handle (14) is provided with anti-slip texture.

4. The anti-accidental opening ball valve according to claim 1, characterized in that: The outer surface of the movable cylinder (4) is tightly fitted to the connection of the positioning tube (3), and the bottom of the airbag (9) extends into the inner cavity of the limiting groove (7).

5. The anti-accidental opening ball valve according to claim 1, characterized in that: Flanges (15) are provided on both the left and right sides of the valve body (1), and the flanges (15) and the valve body (1) are welded together.

6. The anti-accidental opening ball valve according to claim 1, characterized in that: The limiting groove (7) is hexagonal, and the limiting block (11) is hexagonal.

7. The anti-accidental opening ball valve according to claim 1, characterized in that: The bottom of the spring (12) is fixedly connected to the positioning plate (5), and the top of the spring (12) is tightly fitted to the movable cylinder (4).

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