High-pressure self-sealing floating ball valve

Abstract

The utility model discloses a high-pressure self-sealing floating ball valve which comprises a valve body, flange plates are fixedly connected to the two sides of the valve body, a connecting box is fixedly connected to the top of the valve body, and a valve rod is arranged at the top of the connecting box. A first sealing assembly is arranged in the connecting box and comprises a moving plate, first protruding blocks are fixedly connected to the two sides of the top of the moving plate, the bottom of the valve rod penetrates through the connecting box and extends into the valve body, a rotating disc is fixedly connected to the top of the surface of the valve rod, and second protruding blocks are fixedly connected to the two sides of the bottom of the rotating disc. The first protruding block and the second protruding block are in low connection, vertical plates are fixedly connected to the two sides of the bottom of the movable plate, and rolling wheels are movably connected to the bottoms of the vertical plates. According to the high-pressure self-sealing floating ball valve, the valve rod is sealed in a reinforced mode through the boss capable of moving left and right, the valve rod is prevented from rotating for multiple times, the air leakage or liquid leakage phenomenon is avoided, and the safety of the high-pressure self-sealing floating ball valve in the using process is improved.

Description

Technical Field

[0001] The utility model relates to a high-pressure self-sealing floating ball valve, belonging to the technical field of ball valves. Background Art

[0002] High-pressure self-sealing floating ball valve is a valve with self-sealing function, suitable for fluid control under high-pressure environment. It adopts floating ball structure and realizes the self-sealing function of the valve through hydraulic pressure, which can effectively reduce the possibility of air leakage and liquid leakage.

[0003] The main function of this type of valve is to control the flow, pressure and direction of the fluid. It can be used to adjust, cut off or prevent the flow of fluid. It is widely used in the petroleum, chemical, metallurgy, electric power and other industries. It can effectively ensure the safe operation of the pipeline system and the stability of fluid control. The high-pressure self-sealing floating ball valve has the advantages of simple structure, easy use, flexible operation and good sealing. It is a valve product with reliable performance.

[0004] The high-pressure self-sealing floating ball valve in the prior art is usually sealed by a sealing ring. After long-term use, a gap may easily appear between the sealing ring and the ball valve, which may easily cause air or liquid leakage, resulting in unsatisfactory use effect. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a high-pressure self-sealing floating ball valve, which has the advantage of improving the sealing effect and solves the problem that the existing high-pressure self-sealing floating ball valve only uses a sealing ring for sealing, which is prone to air leakage or liquid leakage.

[0006] The utility model is realized by the following scheme: a high-pressure self-sealing floating ball valve comprises a valve body, both sides of the valve body are fixedly connected with flanges, the top of the valve body is fixedly connected with a connection box, and the top of the connection box is provided with a valve stem;

[0007] A sealing component 1 is provided inside the connection box, and the sealing component 1 includes a movable plate, and protrusions 1 are fixedly connected to both sides of the top of the movable plate, the bottom of the valve stem passes through the connection box and extends to the inside of the valve body, a turntable is fixedly connected to the top of the valve stem surface, and protrusions 2 are fixedly connected to both sides of the bottom of the turntable, and the protrusions 1 and 2 are low-connected to each other, and vertical plates are fixedly connected to both sides of the bottom of the movable plate, and rollers are movably connected to the bottom of the vertical plate, and bosses are slidably connected to both sides of the bottom of the inner cavity of the connection box, and the rollers are slidably connected to the bosses;

[0008] A sealing component 2 is arranged on one side of the flange, and the sealing performance of the flange connection can be improved by the sealing component 2.

[0009] A first reset member is provided on both sides of the bottom of the inner cavity of the connection box, and the first reset member includes a groove, a sliding rod is fixedly connected between the two sides of the inner wall of the groove, a sliding block is slidably connected to one side of the surface of the sliding rod, the top of the sliding block is fixed to the bottom of the boss, and a tension spring is sleeved on the surface of the sliding rod.

[0010] Second restoring members are arranged on the tops of both sides of the inner cavity of the connection box, and the structure of the second restoring member is the same as that of the first restoring member.

[0011] The second sealing component comprises a receiving groove, a rubber airbag is placed inside the receiving groove, the top of the inner cavity of the flange is connected with an air valve, and the top of the air valve is connected with the rubber airbag.

[0012] One end of the tension spring is fixed to the slider, and the other end is fixed to the inner wall of the groove.

[0013] A handle is fixedly connected to the surface of the valve stem, and anti-slip grooves are arranged on the surface of the handle.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model is a high-pressure self-sealing floating ball valve, which strengthens the sealing of the valve stem through a boss that can move left and right to prevent the valve stem from rotating multiple times and causing air or liquid leakage, thereby improving the safety of the high-pressure self-sealing floating ball valve when in use.

[0016] 2. The utility model provides a high-pressure self-sealing floating ball valve, in which protrusion one and protrusion two are arranged at different positions. When protrusion one rotates, protrusion two will be squeezed and moved downward, and then the boss can be squeezed in cooperation with the roller. The boss is made of rubber material. Through the setting of sealing component two, the sealing effect of the flange connection can be improved to avoid air leakage or liquid leakage. The boss is set in an inclined shape, which is convenient for use with the descending roller.

[0017] 3. The utility model provides a high-pressure self-sealing floating ball valve. Through the provision of a first reset member, the boss can be easily reset to facilitate multiple uses of the boss. Through the provision of a second reset member, the movable plate can be easily reset to facilitate multiple uses of the movable plate. Through the provision of an air valve, the pressure inside the valve body can easily enter the rubber airbag to make the rubber airbag swell, thereby improving the sealing of the flange connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a high-pressure self-sealing floating ball valve of the utility model;

[0019] Figure 2 It is a partial cross-sectional view of a connection box in a high-pressure self-sealing floating ball valve of the utility model;

[0020] Figure 3 This is a display diagram of the first and second protrusions in a high-pressure self-sealing floating ball valve of the utility model;

[0021] Figure 4 This utility model is a high pressure self-sealing floating ball valve Figure 1 A magnified view of middle;

[0022] Figure 5 This utility model is a high pressure self-sealing floating ball valve Figure 2 Enlarged view of B.

[0023] In the figure: 1. valve body; 2. flange; 3. connecting box; 4. valve stem; 5. moving plate; 6. bump 1; 7. turntable; 8. bump 2; 9. vertical plate; 10. roller; 11. boss; 12. groove; 13. slide bar; 14. slider; 15. tension spring; 16. storage slot; 17. rubber airbag; 18. air valve; 19. handle. DETAILED DESCRIPTION

[0024] Combine the following Figure 1-5 The utility model is further described, but the protection scope of the utility model is not limited to the described contents.

[0025] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. The drawings are all in very simplified form and use inaccurate ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0026] For the sake of clarity, not all features of the actual embodiments are described. In the following description, well-known functions and structures are not described in detail because they would obscure the present invention with unnecessary detail. It should be recognized that in the development of any actual embodiment, a large number of implementation details must be made to achieve the specific goals of the developer, such as changing from one embodiment to another according to relevant system or business limitations. In addition, it should be recognized that such development work may be complex and time-consuming, but is merely routine work for those skilled in the art.

[0027] A high-pressure self-sealing floating ball valve comprises a valve body 1, both sides of the valve body 1 are fixedly connected with flanges 2, the top of the valve body 1 is fixedly connected with a connection box 3, and the top of the connection box 3 is provided with a valve stem 4; a sealing component 1 is provided inside the connection box 3, and the sealing component 1 comprises a moving plate 5, both sides of the top of the moving plate 5 are fixedly connected with bumps 1 6, the bottom of the valve stem 4 passes through the connection box 3 and extends to the inside of the valve body 1, a rotating disk 7 is fixedly connected to the top of the surface of the valve stem 4, and both sides of the bottom of the rotating disk 7 are fixedly connected with bumps 2 8, the bumps 1 6 and the bumps 2 8 are abutted against each other, and the bumps 1 6 and the bumps 2 8 are arranged at different positions, and when the bumps 2 8 rotate, the bumps 1 6 will be squeezed and the bumps 2 8 will be pressed. Block 1 6 moves downward, and then cooperates with roller 10 to extrude boss 11, boss 11 is made of rubber material, both sides of the bottom of movable plate 5 are fixedly connected with vertical plates 9, the bottom of vertical plates 9 is movably connected with roller 10, both sides of the bottom of the inner cavity of connecting box 3 are slidably connected with boss 11, roller 10 is slidably connected with boss 11; one side of flange 2 is provided with sealing component 2, and the sealing performance of the connection of flange 2 can be improved by sealing component 2, and the sealing effect of the connection of flange 2 can be improved by setting sealing component 2 to avoid air leakage or liquid leakage, boss 11 is set to be inclined, which is convenient for use with the descending roller 10, and both sides of the bottom of the inner cavity of connecting box 3 are connected A first reset member is provided, and the setting of the first reset member can facilitate the reset of the boss 11, so that the boss 11 can be used multiple times. The first reset member includes a groove 12, and a slide rod 13 is fixedly connected between the two sides of the inner wall of the groove 12. A slider 14 is slidably connected to one side of the surface of the slide rod 13. The top of the slider 14 is fixed to the bottom of the boss 11, and a tension spring 15 is sleeved on the surface of the slide rod 13. Second reset members are provided on the tops of both sides of the inner cavity of the connecting box 3. The setting of the second reset member can facilitate the reset of the movable plate 5, so that the movable plate 5 can be used multiple times. The structure of the second reset member is the same as that of the first reset member. The sealing component 2 includes a receiving groove 16, and a receiving groove 16 is placed inside. The rubber airbag 17 and the top of the inner cavity of the flange 2 are connected with an air valve 18. Through the setting of the air valve 18, the pressure inside the valve body 1 can enter the rubber airbag 17 to make the rubber airbag 17 bulge, so as to improve the sealing of the flange 2 connection. The top of the air valve 18 is connected with the rubber airbag 17. One end of the tension spring 15 is fixed to the slider 14, and the other end is fixed to the inner wall of the groove 12. A handle 19 is fixedly connected to the surface of the valve stem 4. The surface of the handle 19 is provided with anti-slip grooves. The boss 11 that can be moved left and right is used to strengthen the sealing of the valve stem 4 to prevent the valve stem 4 from rotating multiple times and causing air leakage or liquid leakage, thereby improving the safety of the high-pressure self-sealing floating ball valve when in use.

[0028] The working principle of the utility model is as follows: the valve stem 4 is rotated, the valve stem 4 drives the turntable 7 to rotate, the turntable 7 drives the protrusion 2 8 to rotate, the protrusion 2 8 squeezes the protrusion 1 6 during the rotation, the protrusion 1 6 moves downward under the action of the squeezing force, the moving plate 5 moving downward drives the vertical plate 9 to move, the vertical plate 9 drives the roller 10 to move, the roller 10 moves downward to squeeze the boss 11, because the boss 11 is made of rubber material, it will be deformed during the squeezing process, the deformed boss 11 will fill the gap to avoid air leakage or liquid leakage, so as to achieve the purpose of improving the sealing effect.

[0029] Although the technical solutions of the present invention have been described and listed in detail, it should be understood that it is obvious to those skilled in the art to make modifications to the above-mentioned embodiments or adopt equivalent alternatives. These modifications or improvements made without departing from the spirit of the present invention are within the scope of protection required by the present invention.

Claims

1. A high-pressure self-sealing floating ball valve, comprising a valve body (1), characterized in that: Flange plates (2) are fixedly connected to both sides of the valve body (1), a connection box (3) is fixedly connected to the top of the valve body (1), and a valve stem (4) is arranged on the top of the connection box (3); A sealing component 1 is arranged inside the connection box (3), and the sealing component 1 includes a movable plate (5), and protrusions 1 (6) are fixedly connected to both sides of the top of the movable plate (5), the bottom of the valve stem (4) passes through the connection box (3) and extends into the inside of the valve body (1), a rotating disk (7) is fixedly connected to the top of the surface of the valve stem (4), and protrusions 2 (8) are fixedly connected to both sides of the bottom of the rotating disk (7), and the protrusions 1 (6) and 2 (8) are low-jointed with each other, vertical plates (9) are fixedly connected to both sides of the bottom of the movable plate (5), and rollers (10) are movably connected to the bottom of the vertical plates (9), and bosses (11) are slidably connected to both sides of the bottom of the inner cavity of the connection box (3), and the rollers (10) are slidably connected to the bosses (11); A second sealing component is provided on one side of the flange (2), and the sealing performance of the connection of the flange (2) can be improved by the second sealing component.

2. A high pressure self-sealing floating ball valve according to claim 1, characterized in that: A first reset member is provided on both sides of the bottom of the inner cavity of the connection box (3), and the first reset member includes a groove (12). A sliding rod (13) is fixedly connected between the two sides of the inner wall of the groove (12), and a sliding block (14) is slidably connected to one side of the surface of the sliding rod (13). The top of the sliding block (14) is fixed to the bottom of the boss (11), and a tension spring (15) is sleeved on the surface of the sliding rod (13).

3. A high pressure self-sealing floating ball valve according to claim 1, characterized in that: Second restoring members are provided at the tops of both sides of the inner cavity of the connection box (3), and the structure of the second restoring member is the same as that of the first restoring member.

4. A high pressure self-sealing floating ball valve according to claim 1, characterized in that: The second sealing component comprises a receiving groove (16), a rubber airbag (17) is placed inside the receiving groove (16), the top of the inner cavity of the flange (2) is connected to an air valve (18), and the top of the air valve (18) is connected to the rubber airbag (17).

5. A high pressure self-sealing floating ball valve according to claim 2, characterized in that: One end of the tension spring (15) is fixed to the slider (14), and the other end is fixed to the inner wall of the groove (12).

6. A high pressure self-sealing floating ball valve according to claim 1, characterized in that: A handle (19) is fixedly connected to the surface of the valve stem (4), and anti-slip grooves are provided on the surface of the handle (19).

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