Metal sealing ball valve

Abstract

The utility model discloses a metal sealing ball valve, which belongs to the technical field of ball valves, and comprises a valve body, the inner wall of the valve body is connected with the outer wall of a first connecting ring, one side of the first connecting ring is respectively connected with the corresponding ends of four sleeves, one end of the inner wall of each sleeve is connected with the corresponding end of a spring, and the other end of each sleeve is connected with the corresponding spring. The inner wall of the sleeve is movably connected with a connecting rod, and the other end of the spring is connected with the corresponding end of the connecting rod. According to the metal sealing ball valve, the sleeve, the spring, the connecting rod, the first fixing ring and the first filter screen are arranged, water flow is buffered in the using process of the ball valve, so that the flow speed of the water flow is reduced, and the situation that the valve body is damaged due to the fact that the impact force of the water flow is large at the moment when the ball valve is opened is avoided; and the first filter screen is reset through the spring, so that the first filter screen can play a buffering role in the starting process of the ball valve every time.

Description

Technical Field

[0001] The utility model belongs to the technical field of ball valves, in particular to a metal sealing ball valve. Background Art

[0002] A ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. It can be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat welded with cemented carbide. It is particularly 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 in the pipeline, but also close any channel to connect the other two channels.

[0003] A Chinese patent discloses a metal-sealed ball valve with the publication number CN209781727U. The article states that "it includes a valve body, a cavity and a ball, a fixed seat is arranged at the top of the valve body, a vertical rod is arranged on the upper surface of the fixed seat, a drive box is arranged at the top of the vertical rod, the drive box is a hollow structure, a rotating shaft is arranged in the inner cavity of the drive box, the rotating shaft sleeve is provided with a first bevel gear, the first bevel gear is rotatably connected to the second bevel gear, the second bevel gear is meshed with the first bevel gear, and the second bevel gear sleeve is provided with a valve stem". At the moment of opening and closing of the existing ball valve, due to the fast flow rate of the liquid, the impact force at the moment of opening the ball valve is relatively large. In the process of long-term impact on the valve body, the ball valve is easily damaged, thereby affecting its service life. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a metal-sealed ball valve, which solves the problem that the existing ball valve has a large impact force at the moment of opening and closing due to the fast flow rate of the liquid. In the process of long-term impact on the valve body, the ball valve is easily damaged, thereby affecting its service life.

[0005] The technical solution of the utility model is as follows: a metal-sealed ball valve comprises a valve body, the inner wall of the valve body is connected to the outer wall of a first connecting ring, one side of the first connecting ring is respectively connected to one end corresponding to four sleeves, one end of the inner wall of the sleeve is connected to one end corresponding to a spring, the inner wall of the sleeve is movably connected with a connecting rod, the other end of the spring is connected to one end corresponding to the connecting rod, the other end of the connecting rod is connected to one side corresponding to a second connecting ring, a placement groove is provided in the second connecting ring, a first fixing ring is arranged in the placement groove, and the inner wall of the first fixing ring is connected to the outer wall of a first filter screen.

[0006] As a further solution of the utility model: a mounting groove is provided in the valve body, the valve body is fixedly connected to the second fixing ring through the mounting groove, and the inner wall of the second fixing ring is connected to the outer wall of the second filter screen.

[0007] As a further solution of the utility model: the outer wall of the valve body is connected to the bottom end of the valve column, a valve stem is arranged in the valve column, the bottom end of the valve stem is connected to the outer wall of the sphere, and a through groove is opened in the sphere.

[0008] As a further solution of the utility model: a bearing is arranged inside the valve column, and the inner wall of the bearing is connected to the outer wall of the valve stem.

[0009] As a further solution of the utility model: the outer wall of the valve stem is connected to the inner wall of the handle, and the outer wall of the handle is provided with an anti-slip sleeve.

[0010] As a further solution of the utility model: the outer wall of the valve body is connected to the inner walls of the two connecting seats respectively, the bottom of the two connecting seats is provided with a same base, and the four corners of the base are provided with mounting holes.

[0011] As a further solution of the utility model: two slide grooves are provided in the base, the connecting seat is slidably connected in the slide grooves, shock absorbers are provided at both ends of the inner walls of the two slide grooves, and the opposite ends of the two shock absorbers are respectively connected to the ends of the two connecting seats away from each other.

[0012] As a further solution of the utility model: a sealing plate is arranged in the second connecting ring, and a side surface of the sealing plate abuts against a side corresponding to the first fixing ring.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. The metal-sealed ball valve is provided with a first connecting ring, a sleeve, a spring, a connecting rod, a second connecting ring, a first fixing ring and a first filter screen. The ball valve buffers the water flow during use, thereby reducing the flow rate of the water flow, avoiding the situation where the valve body is damaged due to the large impact force of the water flow at the moment of opening the ball valve, thereby ensuring the service life of the ball valve, and resetting the first filter screen by the spring, so that it can play a buffering role every time the ball valve is started.

[0015] 2. The metal-sealed ball valve is provided with a shock absorber, a slide groove and a connecting seat. When the valve body vibrates, the connecting seat will be driven to move along the slide groove, so that the connecting seat squeezes the shock absorber. The shock absorber can reduce the shock of the valve body, thereby ensuring the stability of the valve body and avoiding unstable liquid flow due to violent shaking of the valve body during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the valve body of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the first filter screen of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the second connecting ring of the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the sleeve of the utility model when viewed from the front;

[0022] In the figure: 1 valve body, 2 first connecting ring, 3 sleeve, 4 spring, 5 connecting rod, 6 second connecting ring, 7 placement groove, 8 first fixing ring, 9 first filter screen, 10 sealing plate, 11 second fixing ring, 12 second filter screen, 13 valve column, 14 valve stem, 15 ball, 16 bearing, 17 handle, 18 connecting seat, 19 base, 20 slide groove, 21 shock absorber. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-5As shown, the utility model provides a technical solution: a metal sealing ball valve, including a valve body 1, the inner wall of the valve body 1 is connected to the outer wall of a first connecting ring 2, one side of the first connecting ring 2 is respectively connected to one end corresponding to four sleeves 3, one end of the inner wall of the sleeve 3 is connected to one end corresponding to a spring 4, the inner wall of the sleeve 3 is movably connected with a connecting rod 5, the other end of the spring 4 is connected to one end corresponding to the connecting rod 5, the other end of the connecting rod 5 is connected to one side corresponding to a second connecting ring 6, a placement groove 7 is provided in the second connecting ring 6, a first fixing ring 8 is provided in the placement groove 7, the inner wall of the first fixing ring 8 is connected to the outer wall of a first filter screen 9, and a mounting groove is provided in the valve body 1 The valve body 1 is fixedly connected to the second fixing ring 11 through the mounting groove, the inner wall of the second fixing ring 11 is connected to the outer wall of the second filter screen 12, the outer wall of the valve body 1 is connected to the bottom end of the valve column 13, a valve stem 14 is arranged in the valve column 13, the bottom end of the valve stem 14 is connected to the outer wall of the ball 15, a through groove is provided in the ball 15, a bearing 16 is arranged in the valve column 13, the inner wall of the bearing 16 is connected to the outer wall of the valve stem 14, and the bearing 16 can play a role of limiting and supporting during the rotation of the valve stem 14, so as to avoid the shaking of the valve stem 14 during the rotation and affect its transmission effect, and at the same time can reduce the friction generated when the valve stem 14 rotates to ensure its rotation Precision, thereby ensuring the stability of its rotation, the outer wall of the valve stem 14 is connected to the inner wall of the handle 17, and the outer wall of the handle 17 is provided with an anti-slip sleeve. By providing the handle 17, it is convenient to rotate the valve stem 14 to close and start the ball valve, and the anti-slip sleeve can prevent hand slippage during the rotation process. The outer wall of the valve body 1 is respectively connected to the inner walls of the two connecting seats 18, and the bottom of the two connecting seats 18 is provided with the same base 19, and the four corners of the base 19 are provided with mounting holes. By providing the base 19 and the mounting holes, it is convenient to install and fix the valve body 1, and two slide grooves 20 are provided in the base 19. The connecting seat 18 is slidably connected in the slide groove 20. The two slide grooves 20 Shock absorbers 21 are provided at both ends of the inner wall, and the opposite ends of the two shock absorbers 21 are respectively connected to the ends away from the two connecting seats 18. By providing the shock absorbers 21, the slide groove 20 and the connecting seat 18, when the valve body 1 vibrates, the connecting seat 18 will be driven to move along the slide groove 20, so that the connecting seat 18 squeezes the shock absorber 21. The effect of the shock absorber 21 can achieve a shock-absorbing effect on the valve body 1, thereby ensuring the stability of the valve body 1 in use and avoiding the situation where the liquid flow is unstable due to violent shaking of the valve body 1 during use. A sealing plate 10 is provided in the second connecting ring 6, and the side of the sealing plate 10 is abutted against the side corresponding to the first fixing ring 8.

[0025] The working principle of the utility model is:

[0026] When in use, the water pipe connected to the ball valve will deliver liquid into the valve body 1. When the liquid flows into the valve body 1, it will come into contact with the first filter screen 9. The impurities in the liquid can be filtered through the first filter screen 9, and it can also buffer the water flow. When the water flow hits the first filter screen 9, it will drive the connecting rod 5 to move. The movement of the connecting rod 5 drives the spring 4 to stretch. The elastic force of the spring 4 can play a secondary buffering effect to prevent the valve body 1 from being damaged by excessive water flow. When the valve body 1 vibrates, it will drive the connecting seat 18 to move along the slide groove 20. Through the effect of the shock absorber 21, the valve body 1 can be damped to ensure the stability of the valve body 1.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal sealing ball valve, comprising a valve body (1), characterized in that: The inner wall of the valve body (1) is connected to the outer wall of the first connecting ring (2); one side of the first connecting ring (2) is respectively connected to one end of the four sleeves (3); one end of the inner wall of the sleeve (3) is connected to one end of the spring (4); the inner wall of the sleeve (3) is movably connected to a connecting rod (5); the other end of the spring (4) is connected to one end of the connecting rod (5); the other end of the connecting rod (5) is connected to one side of the second connecting ring (6); a placement groove (7) is provided in the second connecting ring (6); a first fixing ring (8) is provided in the placement groove (7); the inner wall of the first fixing ring (8) is connected to the outer wall of the first filter screen (9).

2. A metal sealing ball valve according to claim 1, characterized in that: The valve body (1) is provided with a mounting groove, and the valve body (1) is fixedly connected to the second fixing ring (11) via the mounting groove, and the inner wall of the second fixing ring (11) is connected to the outer wall of the second filter screen (12).

3. A metal sealing ball valve according to claim 1, characterized in that: The outer wall of the valve body (1) is connected to the bottom end of the valve column (13), a valve stem (14) is arranged inside the valve column (13), the bottom end of the valve stem (14) is connected to the outer wall of the sphere (15), and a through groove is provided inside the sphere (15).

4. A metal sealing ball valve according to claim 3, characterized in that: A bearing (16) is arranged inside the valve column (13), and the inner wall of the bearing (16) is connected to the outer wall of the valve stem (14).

5. A metal sealing ball valve according to claim 4, characterized in that: The outer wall of the valve stem (14) is connected to the inner wall of the handle (17), and the outer wall of the handle (17) is provided with an anti-slip sleeve.

6. A metal sealing ball valve according to claim 1, characterized in that: The outer wall of the valve body (1) is connected to the inner walls of the two connecting seats (18) respectively. The bottom of the two connecting seats (18) is provided with a common base (19), and the four corners of the base (19) are provided with mounting holes.

7. A metal sealing ball valve according to claim 6, characterized in that: Two slide grooves (20) are provided in the base (19), and the connecting seat (18) is slidably connected in the slide grooves (20). Shock absorbers (21) are provided at both ends of the inner walls of the two slide grooves (20), and the opposite ends of the two shock absorbers (21) are respectively connected to the ends of the two connecting seats (18) that are away from each other.

8. The metal sealing ball valve according to claim 1, characterized in that: A sealing plate (10) is arranged inside the second connecting ring (6), and a side surface of the sealing plate (10) abuts against a side corresponding to the first fixing ring (8).

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