Spring return ball valve with good sealing

Abstract

The application discloses a spring reset ball valve with good sealing performance, which comprises a valve body, a flange arranged at one end of the valve body, a reset spring and a push handle arranged on the valve body, threads arranged on the flange, a limiting groove arranged on the valve body, a gear plate arranged in the limiting groove, the gear plate being engaged with a gear, the gear being fixedly connected with a rotating rod at the upper end of the gear, the rotating rod being fixedly connected with a rotating handle at the upper end of the valve body, the gear plate being fixedly connected with a limiting plate at one side of the lower end of the gear plate, and the limiting groove being fixedly connected with an expansion plate at the lower end of the limiting groove. The spring reset ball valve has the advantages that: the rotating handle and the rotating rod are arranged, the gear is driven by the rotating handle and the rotating rod, the gear plate is driven by the gear, the limiting plate is driven by the gear plate, the limiting plate can effectively prevent water in a pipeline from entering a threaded connection portion of the flange when the water passes through the threaded connection portion of the flange, the limiting plate can shield the water from entering the threaded connection portion of the flange, the sealing performance of the spring reset ball valve is better, the sliding head is arranged and can be adapted to the flange and the pipeline when the flange and the pipeline are connected, the expansion plate and the spring are arranged and can protect the limiting groove, and the limiting groove is prevented from being subjected to an impact force of water pressure in the pipeline.

Description

TECHNICAL FIELD

[0001] The application relates to a spring reset ball valve, in particular to a spring reset ball valve with good sealing performance, and belongs to the technical field of spring reset ball valves. BACKGROUND

[0002] The spring ball valve only needs to be rotated by 90 degrees and has a small rotation torque to connect the medium flow, loosen the handle of the ball valve, and automatically rebound and reset under the action of the spring.

[0003] At present, the spring reset ball valve does not have good sealing performance when connecting the water pipe. Experienced craftsmen will wrap a layer of waterproof tape on the threads of the flange at the ball valve and pipe connection, and connect the pipe connection end to prevent water overflow. However, the aging and erosion of the waterproof tape will cause it to gradually become sparse over a long period of use, resulting in poor sealing performance of the pipe. At the same time, the waterproof tape will flow out with the water flow in the pipe, affecting the water quality. SUMMARY

[0004] The application provides a spring reset ball valve with good sealing performance to solve the problem that the spring reset ball valve does not have good sealing performance when connecting the water pipe. Experienced craftsmen will wrap a layer of waterproof tape on the threads of the flange at the ball valve and pipe connection, and connect the pipe connection end to prevent water overflow. However, the aging and erosion of the waterproof tape will cause it to gradually become sparse over a long period of use, resulting in poor sealing performance of the pipe. At the same time, the waterproof tape will flow out with the water flow in the pipe, affecting the water quality.

[0005] In order to solve the above technical problems, the application provides the following technical scheme:

[0006] The application provides a spring reset ball valve with good sealing performance, which comprises a valve body, a flange arranged at one end of the valve body, a reset spring and a push handle arranged on the valve body, threads arranged on the flange, a limiting groove arranged on the valve body, a gear plate arranged in the limiting groove, the gear plate being meshed with a gear, the upper end of the gear being fixedly connected with a rotating rod, the rotating rod penetrating through the upper end of the valve body and being fixedly connected with a rotating handle, one side of the lower end of the gear plate being fixedly connected with a limiting plate, the lower end of the limiting groove being fixedly connected with an expansion plate, and the expansion plate being fixedly connected with a spring.

[0007] As a preferred technical scheme of the application, the rotating handle is provided with anti-skid lines.

[0008] As a preferred technical scheme of the application, the limiting plate is in the shape of a circular arc, and the end of the limiting plate away from the gear plate is provided with a sliding head.

[0009] As a preferred technical scheme of the application, the limiting plate and the limiting groove are provided with four, and the limiting plates are matched with each other.

[0010] As a preferred technical scheme of the present application, the connecting part of the rotating rod and the valve body is fixedly connected with a sealing sleeve.

[0011] As a preferred technical scheme of the present application, the telescopic plate is fixedly connected with a pad at one end close to the limiting plate.

[0012] The present application has the following beneficial effects:

[0013] 1. The rotating handle and the rotating rod drive the gear, which drives the gear plate, so that the limiting plate can effectively prevent water in the pipeline from entering the flange threaded connection when the pipeline is connected through the flange, so as to block the water from entering the flange threaded connection, and the sealing performance of the spring return ball valve is better.

[0014] 2. The sliding head can be easily adapted when connected with the flange and the pipeline, and the telescopic plate and the spring can protect the limiting groove from the impact force of the water pressure in the pipeline. DETAILED DESCRIPTION

[0015] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, which together with the embodiments of the present application, serve to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0016] Fig. 1 is a structural schematic view of the present application;

[0017] Fig. 2 is a side view of the limiting valve body structure of the present application;

[0018] Fig. 3 is an enlarged view of structure A of the present application.

[0019] In the drawings: 1, valve body; 2, flange; 3, return spring; 4, push handle; 5, thread; 6, rotating rod; 7, sealing sleeve; 8, limiting groove; 9, gear; 10, gear plate; 11, limiting plate; 12, sliding head; 13, telescopic plate; 14, spring; 15, pad; 16, rotating handle; 17, anti-slip pattern. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] Embodiment: as Figs. 1-3As shown, the spring reset ball valve with good sealing of the application, including the valve body 1, the valve body 1 one end is equipped with flange 2, the valve body 1 is equipped with reset spring 3 and push 4, flange 2 is equipped with thread 5, thread 5 is convenient for the fixed connection between the pipeline, the valve body 1 is equipped with limit groove 8, limit groove 8 is equipped with gear plate 10, limit groove 8 plays a protective role, gear plate 10 is engaged with gear 9, gear 9 upper end fixed connection rotating rod 6, rotating rod 6 passes through the upper end of valve body 1 fixed connection rotating handle 16, the rotation of rotating handle 16 can drive the rotation of gear 9, gear plate 10 lower end one side fixed connection limit plate 11, limit groove 8 lower end fixed connection expansion plate 13, expansion plate 13 is fixedly connected with spring 14, spring 14 can drive the recovery of expansion plate 13.

[0022] Limit plate 11 and limit groove 8 are equipped with four, and several limit plate 11 is adapted, which has good sealing performance, rotating handle 16 is equipped with anti-skid line 17, which is convenient for rotating handle 16, expansion plate 13 is fixedly connected with pad 15 near one end of limit plate 11, pad 15 plays a protective role, which prevents damage caused by friction, rotating rod 6 and valve body 1 connection fixedly connected with sealing sleeve 7, sealing sleeve 7 plays a sealing effect, limit plate 11 is arc-shaped, and limit plate 11 is equipped with slide head 12 away from gear plate 10 one end, slide head 12 makes the contact more adaptive, which prevents wear and tear.

[0023] Specifically, the pipeline is threadedly connected with the flange 2 at one end of the valve body 1, and after connection, the rotating handle 16 can be rotated, the rotating handle drives the rotating rod 6 to drive the gear 9 at the lower end to drive the rotation of the gear plate 10 engaged therewith, the rotation of the gear plate 10 drives the rotation of the limit plate 11 at the lower end, so that the plurality of limit plates 11 are adapted to contact, and the slide head 12 is in contact with the connection, the gear 9 driven by the rotating handle 16 and the rotating rod 6 drives the gear plate 10, so that the gear plate 10 drives the limit plate 11, which can effectively block the water from entering the threaded connection of the flange 2 when the water in the pipeline passes through the threaded connection of the flange 2, so that the sealing performance of the spring reset ball valve is better, the slide head 12 can be adapted to the connection between the flange 2 and the pipeline, and the expansion plate 13 and the spring 14 can protect the limit groove 8 from the impact force of the water pressure in the pipeline.

[0024] Although embodiments of the application have been shown and described, it is to be understood that the application is not limited to these embodiments. Since modifications, equivalents, replacements, and variations of these embodiments can be understood by those skilled in the art without departing from the principles and spirit of the application, the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A spring-return ball valve having a good seal, characterized by, The utility model provides a valve, including valve body (1), one end of valve body (1) is equipped with flange (2), be equipped with reset spring (3) and push handle (4) on valve body (1), be equipped with screw thread (5) on flange (2), be equipped with limiting groove (8) on valve body (1), be equipped with gear plate (10) in limiting groove (8), gear plate (10) is engaged and connected gear (9), the upper end fixed connection of gear (9) swing lever (6), swing lever (6) passes through the upper end fixed connection of valve body (1) handle (16), gear plate (10) lower end one side fixed connection limiting plate (11), limiting groove (8) lower end fixed connection telescopic plate (13), spring (14) is fixedly connected in telescopic plate (13); Limiting plate (11) is arc, and the end away from gear plate (10) of limiting plate (11) is equipped with sliding head (12); The connecting place of swing lever (6) and valve body (1) is fixedly connected sealing sleeve (7);Telescopic plate (13) is fixedly connected pad (15) close to one end of limiting plate (11); The pipe is connected with the flange (2) screw thread of one end of valve body (1), rotates handle (16) after connecting, handle (16) drives swing lever (6) to make the lower end gear (9) drive the gear plate (10) of engagement with it rotation, the rotation of gear plate (10) drives the lower end limiting plate (11) rotation, makes a plurality of limiting plate (11) contact with adaptation, and through sliding head (12) and connecting place contact, through handle (16) and swing lever (6) drive gear (9), make gear (9) drive gear plate (12), thereby drive limiting plate (11) and block water and enter flange (2) screw thread connection.

2. A spring-return ball valve with good sealing according to claim 1, characterized in that, Handle (16) is equipped with antiskid line (17) on.

3. A spring-return ball valve with good sealing according to claim 1, characterized in that, Limiting plate (11) and limiting groove (8) are equipped with four, and several limiting plate (11) mutually adapt.

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