Hard sealing eccentric C-shaped ball valve

Abstract

The utility model provides a hard seal eccentric C type ball valve relates to eccentric C type ball valve technical field, including valve body, drive structure and medium guide cylinder, the left part of valve body is provided with input pipeline, and the right part of valve body is provided with output pipeline, input pipeline and output pipeline are both communicated with the inner wall of valve body, and the medium guide cylinder is provided with medium guide cylinder. A base is arranged in the middle of the bottom of the valve body, a top seat is arranged in the center of the top of the valve body, a valve rod is arranged in the middle of the lower side of the driving structure, the lower end of the valve rod is rotationally connected into the top seat, and a rotating disc is installed on the lower portion of the right side face of the driving structure; an upper connector is fixed to the lower end of the valve rod. According to the utility model, a medium can be conveniently guided and filtered, the connection between the upper and lower connectors and the valve body is tighter and more reliable, and the inner and outer valve plate structures are arranged, so that the medium can be buffered, the damage to the outer valve plate is reduced, and the valve is more durable.

Description

Technical Field

[0001] The utility model relates to the technical field of eccentric C-type ball valves, in particular to a hard-sealed eccentric C-type ball valve. Background Art

[0002] The eccentric ball valve is a control component in the pipeline fluid transportation system. It is used to change the passage cross-section and the flow direction of the medium. It has the functions of diversion, cut-off, throttling, check, diversion or overflow pressure relief. The eccentric ball valve can be used to control the flow of various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metal and radioactive fluids.

[0003] In the specification of a high-sealing C-type eccentric ball valve in the prior art (Announcement No. CN209414644U), it is mentioned that "a control device is arranged at the upper end of the ball valve body, and a bracket is arranged between the ball valve body and the control device. The ball valve body includes a ball valve, and a valve core body arranged inside the ball valve. One end of the valve core body is provided with a sealing plate fixedly connected to the valve core body, and a sealing device is provided between the sealing plate and the valve core body. The sealing device includes a memory alloy bushing arranged at one end of the valve core body and fixedly connected to the valve core body." However, the inner side wall of the valve plate in the valve body in the prior art is constantly impacted by the medium, which may cause damage to the inner wall of the C-type valve plate, and is not safe and durable. Utility Model Content

[0004] In order to overcome the defects of the existing technology, a hard-sealed eccentric C-type ball valve is now provided to solve the problem that the inner wall of the valve plate in the valve body in the existing technology is constantly impacted by the medium, which may cause damage to the inner wall of the C-type valve plate and is not safe and durable.

[0005] To achieve the above-mentioned purpose, a hard-sealed eccentric C-type ball valve is provided, including a valve body, a drive structure and a medium guide cylinder. An input pipe is provided on the left side of the valve body, and an output pipe is provided on the right side of the valve body. The input pipe and the output pipe are both connected to the inner wall of the valve body, and medium guide cylinders are both sleeved in the input pipe and the output pipe. A base is provided in the middle of the bottom of the valve body, and a top seat is provided in the top center of the valve body. A valve stem is provided in the middle of the lower side of the drive structure, and the lower end of the valve stem is rotatably connected in the top seat.

[0006] Furthermore, a turntable is installed at the lower part of the right side of the driving structure, and a protective cover is placed on the upper part of the valve stem on the lower side of the driving structure, and an upper connecting head is fixed to the lower end of the valve stem.

[0007] Furthermore, an inner reinforcing sleeve is provided on the upper portion of the upper connector, the inner reinforcing sleeve is made of ceramic silicon, and an outer sealing layer is provided on the outside of the inner reinforcing sleeve, the outer sealing layer is made of nitrile rubber.

[0008] Furthermore, the center of the base is rotatably connected to a lower connecting head, and the lower part of the lower connecting head is sleeved with an inner reinforcement sleeve and an outer sealing layer, and an outer valve plate and an inner valve plate are installed between the upper connecting head and the lower connecting head, and the upper connecting head and the lower connecting head are aligned up and down.

[0009] Furthermore, the outer valve plate is sleeved outside the inner valve plate, and a plurality of connecting rods are connected between the outer annular surface of the inner valve plate and the inner side wall of the outer valve plate.

[0010] Furthermore, the outer end of the medium guide tube is provided with an outer edge, and a filter net bag is placed inside the medium guide tube, a sealing plate is provided between the outer port of the filter net bag and the inner wall of the medium guide tube, and multiple groups of support blocks are provided between the middle part of the outer side surface of the filter net bag and the inner wall of the medium guide tube, and the medium guide tube is a detachable structure.

[0011] The beneficial effects of the present invention are:

[0012] 1. The utility model is provided with an inner reinforcement sleeve and an outer sealing layer between the upper connector and the inner top of the valve body, and between the lower connector and the inner bottom of the valve body, which enhances the sealing strength, makes the internal seal of the valve body tighter, and is safer and more reliable to use.

[0013] 2. The utility model utilizes the rotation of the valve stem to drive the upper connector and the lower connector, thereby driving the outer valve plate and the inner valve plate to flip together, which can not only flip to block the flow of the medium, but also use the inner valve plate to buffer the impact of the medium, which can better protect the outer valve plate and make it more durable.

[0014] 3. The medium guide cylinder of the utility model has the effect of guiding and filtering the medium, and can be flexibly assembled or disassembled so as to be regularly cleaned or replaced, which is more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0016] Figure 2 A schematic cross-sectional view of an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the outer valve plate and the inner valve plate of an embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of a medium guide tube according to an embodiment of the present utility model.

[0019] In the figure: 1. Valve body; 10. Base; 11. Input pipe; 12. Output pipe; 13. Top seat; 2. Drive structure; 20. Valve stem; 21. Turntable; 22. Protective cover; 23. Inner reinforcement sleeve; 24. Outer sealing layer; 25. Upper connector; 26. Outer valve plate; 27. Inner valve plate; 28. Connecting rod; 29. Lower connector; 3. Medium guide cylinder; 30. Support block; 31. Sealing plate; 32. Filter net bag; 33. Outer edge. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Specific details such as specific system structures and technologies are proposed in order to more thoroughly understand the embodiments of the present invention. The described embodiments are part of the embodiments of the present disclosure, not all of them. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present disclosure.

[0021] The specific implementation of the present utility model will be described in detail below with reference to the accompanying drawings.

[0022] Figure 1 This is a front view schematic diagram of an embodiment of the utility model, Figure 2 A cross-sectional diagram of an embodiment of the present invention is shown in FIG. Figure 3 Schematic diagram of the outer valve plate and inner valve plate structure of the embodiment of the utility model and Figure 4 This is a schematic diagram of a medium guide tube according to an embodiment of the present utility model.

[0023] Reference Figures 1 to 4 As shown, the utility model provides a hard-seal eccentric C-type ball valve, including a valve body 1, a drive structure 2 and a medium guide cylinder 3. An input pipe 11 is provided on the left side of the valve body 1, and an output pipe 12 is provided on the right side of the valve body 1. The input pipe 11 and the output pipe 12 are both connected to the inner wall of the valve body 1, and the medium guide cylinder 3 is sleeved in the input pipe 11 and the output pipe 12. A base 10 is provided in the middle of the bottom of the valve body 1, and a top seat 13 is provided in the top center of the valve body 1. A valve stem 20 is provided in the middle of the lower side of the drive structure 2, and the lower end of the valve stem 20 is rotatably connected in the top seat 13.

[0024] In this embodiment, a turntable 21 is installed on the lower part of the right side of the driving structure 2, and a protective cover 22 is provided on the upper part of the valve stem 20 on the lower side of the driving structure 2, and an upper connecting head 25 is fixed to the lower end of the valve stem 20; an inner reinforcing sleeve 23 is provided on the upper part of the upper connecting head 25, and the inner reinforcing sleeve 23 is made of ceramic silicon material, and an outer sealing layer 24 is provided on the outside of the inner reinforcing sleeve 23, and the outer sealing layer 24 is made of nitrile rubber material.

[0025] As a preferred embodiment, the utility model is provided with an inner reinforcement sleeve 23 and an outer sealing layer 24 between the upper connecting head 25 and the inner top of the valve body 1, and between the lower connecting head 29 and the inner bottom of the valve body 1, which enhances the sealing strength, makes the internal seal of the valve body tighter, and is safer and more reliable to use.

[0026] In this embodiment, the base 10 is rotatably connected to a lower connecting head 29, and the lower part of the lower connecting head 29 is sleeved with an inner reinforcement sleeve 23 and an outer sealing layer 24, and an outer valve plate 26 and an inner valve plate 27 are installed between the upper connecting head 25 and the lower connecting head 29; the outer valve plate 26 is sleeved on the outside of the inner valve plate 27, and multiple groups of connecting rods 28 are connected between the outer annular surface of the inner valve plate 27 and the inner side wall of the outer valve plate 26.

[0027] As a preferred embodiment, the utility model utilizes the rotation of the valve stem 20 to drive the upper connector 25 and the lower connector 29, thereby driving the outer valve plate 26 and the inner valve plate 27 to flip together, which can not only flip to block the flow of the medium, but also use the inner valve plate 27 to buffer the impact of the medium, which can better protect the outer valve plate 26 and make it more durable.

[0028] In this embodiment, an outer edge 33 is provided at the outer end of the medium guide tube 3, and a filter net bag 32 is placed inside the medium guide tube 3, a sealing plate 31 is provided between the outer port of the filter net bag 32 and the inner wall of the medium guide tube 3, and multiple groups of support blocks 30 are provided between the middle part of the outer side surface of the filter net bag 32 and the inner wall of the medium guide tube 3, and the medium guide tube 3 is a detachable structure.

[0029] As a preferred embodiment, the medium guide cylinder 3 in the present invention has the effect of guiding and filtering the medium, and can be flexibly assembled or disassembled so as to be regularly cleaned or replaced, which is more convenient and practical.

[0030] The utility model can effectively solve the problem in the prior art that the inner wall of the valve plate in the valve body is constantly impacted by the medium, which may cause damage to the inner wall of the C-type valve plate and is not safe and durable. The utility model facilitates the first guiding and filtering of the medium, and the connection between the upper and lower connecting heads and the valve body is tighter and more reliable. In addition, the inner and outer valve plate structures are provided to help buffer the medium to reduce damage to the outer valve plate, making it more durable.

[0031] The above embodiments are used to illustrate the present invention rather than to limit the present invention. Any modifications and changes made to the present invention within the spirit of the present invention and the scope of the claims for protection shall be included in the scope of protection of the present invention.

Claims

1. A hard-sealed eccentric C-type ball valve, characterized by: The invention comprises a valve body (1), a driving structure (2) and a medium guide cylinder (3), wherein an input pipe (11) is provided on the left side of the valve body (1), and an output pipe (12) is provided on the right side of the valve body (1), the input pipe (11) and the output pipe (12) are both connected to the inner wall of the valve body (1), and the input pipe (11) and the output pipe (12) are both sleeved with a medium guide cylinder (3), a base (10) is provided in the middle of the bottom of the valve body (1), and a top seat (13) is provided in the center of the top of the valve body (1), a valve stem (20) is provided in the middle of the lower side of the driving structure (2), and the lower end of the valve stem (20) is rotatably connected in the top seat (13).

2. A hard-sealed eccentric C-type ball valve according to claim 1, characterized in that: A turntable (21) is installed at the lower part of the right side of the driving structure (2), and a protective cover (22) is placed on the upper part of the valve stem (20) on the lower side of the driving structure (2), and an upper connector (25) is fixed to the lower end of the valve stem (20).

3. A hard-sealed eccentric C-type ball valve according to claim 2, characterized in that: An inner reinforcement sleeve (23) is sleeved on the upper portion of the upper connector (25), the inner reinforcement sleeve (23) is made of ceramic silicon, and an outer sealing layer (24) is provided on the outside of the inner reinforcement sleeve (23), the outer sealing layer (24) is made of nitrile rubber.

4. A hard-sealed eccentric C-type ball valve according to claim 1, characterized in that: The center of the base (10) is rotatably connected to a lower connector (29), and the lower portion of the lower connector (29) is sleeved with an inner reinforcement sleeve (23) and an outer sealing layer (24), and an outer valve plate (26) and an inner valve plate (27) are installed between the upper connector (25) and the lower connector (29), and the upper connector (25) and the lower connector (29) are aligned up and down.

5. A hard-sealed eccentric C-type ball valve according to claim 4, characterized in that: The outer valve plate (26) is sleeved outside the inner valve plate (27), and a plurality of connecting rods (28) are connected between the outer annular surface of the inner valve plate (27) and the inner side wall of the outer valve plate (26).

6. A hard-sealed eccentric C-type ball valve according to claim 1, characterized in that: The outer end of the medium guide cylinder (3) is provided with an outer edge (33), and a filter net bag (32) is sleeved inside the medium guide cylinder (3); a sealing plate (31) is provided between the outer end of the filter net bag (32) and the inner side wall of the medium guide cylinder (3); and a plurality of support blocks (30) are provided between the middle portion of the outer side surface of the filter net bag (32) and the inner side wall of the medium guide cylinder (3); and the medium guide cylinder (3) is a detachable structure.

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