Novel pneumatic high-pressure ball valve

Abstract

The utility model relates to the technical field of pneumatic high-pressure ball valves, and discloses a novel pneumatic high-pressure ball valve which comprises a middle valve body, a first U-shaped plate is fixedly connected to the surface of the middle valve body, a second U-shaped plate is arranged on the side, away from the middle valve body, of the first U-shaped plate in an attached mode, and strip-shaped holes are formed in the front side and the rear side of the second U-shaped plate. Guide columns are fixedly connected to the front side and the rear side of the first U-shaped plate, the inner walls of the guide columns make contact with the inner walls of the strip-shaped holes, a first round hole is formed in the side face of the second U-shaped plate, a side valve body is fixedly connected to the inner wall of the first round hole, and vertical plates are arranged on the side face of the side valve body and the left side and the right side of the middle valve body in an attached mode. According to the pneumatic high-pressure ball valve, the first U-shaped plate, the second U-shaped plate, the strip-shaped hole, the guide column, the vertical plate, the inclined hole and the locking support are matched, so that maintenance personnel can disassemble and assemble the sealing seat in the pneumatic high-pressure ball valve by rotating a bolt on the locking support, and the maintenance personnel can replace the sealing seat in the pneumatic high-pressure ball valve conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic high-pressure ball valves, in particular to a novel pneumatic high-pressure ball valve. Background Art

[0002] The ball valve evolved from the plug. Its opening and closing parts are a sphere, which is used to rotate 90 degrees around the axis of the valve stem to achieve the purpose of opening and closing. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline.

[0003] At present, in pneumatic high-pressure ball valves, the gap between the valve body and the spherical valve core is mostly sealed by a sealing seat. For example, an ultra-high-pressure pneumatic hard-sealed O-type cut-off ball valve disclosed in Chinese patent announcement No. CN210949985U, but when replacing a worn sealing seat, it is necessary to disassemble the valve body and remove the spherical valve core from the valve body before replacing the worn sealing seat, which makes it more troublesome for maintenance personnel to replace the sealing seat. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. For example, at present, in pneumatic high-pressure ball valves, the gap between the valve body and the spherical valve core is mostly sealed by a sealing seat. However, when replacing a worn sealing seat, it is necessary to disassemble the valve body and take the spherical valve core out of the valve body before replacing the worn sealing seat, which makes it more troublesome for maintenance personnel to replace the sealing seat. A new type of pneumatic high-pressure ball valve is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A novel pneumatic high-pressure ball valve comprises a middle valve body, a first U-shaped plate is fixedly connected to the surface of the middle valve body, a second U-shaped plate is fitted on the side of the first U-shaped plate away from the middle valve body, strip holes are provided on both the front and rear sides of the second U-shaped plate, guide columns are fixedly connected on both the front and rear sides of the first U-shaped plate, the inner wall of the guide column contacts the inner wall of the strip hole, a first circular hole is provided on the side of the second U-shaped plate, a side valve body is fixedly connected to the inner wall of the first circular hole, and vertical plates are fitted on the side of the side valve body and the left and right sides of the middle valve body A second circular hole is opened inside the vertical plate, and a sealing seat is bonded to the inner wall of the second circular hole. The inner wall of the middle valve body and the inner wall of the side valve body are in contact with the surface of the sealing seat. A mounting bracket is fixedly connected to the upper surface of the middle valve body, and a ball valve switch assembly is fixedly connected to the upper surface of the mounting bracket. The inner wall of the middle valve body and the side surface of the sealing seat are in contact with the surface of the ball valve switch assembly. Inclined holes are opened on the upper and lower sides of the second U-shaped plate, and a locking bracket is fitted on the inner wall of the inclined hole, and the back side of the locking bracket is fixedly connected to the front side of the first U-shaped plate.

[0007] Preferably, the ball valve switch assembly includes a pneumatically controlled actuator, the bottom of the pneumatically controlled actuator is fixedly connected to the upper surface of the mounting frame, the bottom of the pneumatically controlled actuator is fixedly connected to a valve stem, the bottom of the valve stem is fixedly connected to a spherical valve core, and the inner wall of the middle valve body and the side surface of the sealing seat are both in contact with the surface of the spherical valve core.

[0008] Preferably, the locking bracket includes a connecting block, the back side of the connecting block is fixedly connected to the front side of the first U-shaped plate, the inner wall of the connecting block is fixedly connected with a threaded barrel, the inner wall of the threaded barrel is threadedly connected with a bolt, the surface of the bolt is fixedly connected with a bearing, the surface of the bearing is fixedly connected with a first hollow block, the back side of the first hollow block is fixedly connected with a second hollow block, the inner wall of the second hollow block is fixedly connected with a rectangular ring, and the surface of the rectangular ring is in contact with the inner wall of the inclined hole.

[0009] Preferably, a trapezoidal groove is provided at the bottom of the vertical plate, a trapezoidal column is provided on the inner wall of the trapezoidal groove, and limit blocks are fixedly connected to the left and right sides of the trapezoidal column.

[0010] Preferably, a square hole is opened inside the trapezoidal column, a square tube is fixedly connected to the inner wall of the square hole, a square column is fitted on the inner wall of the square tube, and the upper surface of the square column is fixedly connected to the bottom of the first U-shaped plate.

[0011] Preferably, the left and right sides of the square tube and the sides of the vertical plate are fixedly connected with springs, the sides of the vertical plate are fixedly connected with fixing columns, and the left and right sides of the first U-shaped plate are provided with fixing holes, and the inner walls of the fixing holes are in contact with the surfaces of the fixing columns.

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

[0013] (1) The utility model cooperates with the first U-shaped plate, the second U-shaped plate, the strip hole, the guide column, the inclined hole and the locking bracket so that maintenance personnel can clamp or loosen the vertical plate by turning the bolts on the locking bracket. At the same time, when the side valve body and the middle valve body clamp the vertical plate, the sealing seat can be fixed in the pneumatic high-pressure ball valve through the cooperation of the side valve body, the middle valve body and the vertical plate. When the side valve body and the middle valve body loosen the vertical plate, the sealing seat can be directly taken out of the pneumatic high-pressure ball valve. Furthermore, through the cooperation of the first U-shaped plate, the second U-shaped plate, the strip hole, the guide column, the vertical plate, the inclined hole and the locking bracket, the sealing seat in the pneumatic high-pressure ball valve is more convenient to disassemble and assemble, thereby facilitating maintenance personnel to replace the sealing seat in the pneumatic high-pressure ball valve.

[0014] (2) The utility model uses the cooperation of the square tube and the square column to enable maintenance personnel to quickly align the sealing seat with the middle valve body when installing the sealing seat. At the same time, when the sealing seat is aligned with the middle valve body, the fixing column can be inserted into the fixing hole through the pulling force of the spring on the vertical plate. At this time, the sealing seat cannot be automatically moved out of the middle valve body through the cooperation of the fixing column and the fixing hole. Therefore, when installing the sealing seat, maintenance personnel do not need to hold the trapezoidal column all the time, which makes it easier for maintenance personnel to install the sealing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Sectional view at the middle BB;

[0018] Figure 4 It is a front view of the structure of the utility model;

[0019] Figure 5 It is a side view of the first U-shaped plate in the utility model;

[0020] Figure 6 It is a side view of the second U-shaped plate in the utility model;

[0021] Figure 7 It is a front view of the second U-shaped plate in the utility model;

[0022] Figure 8 It is a side view of the vertical plate in the utility model;

[0023] Fig. 9 It is a front view of the ball valve switch assembly in the utility model;

[0024] Fig.10 It is a left side view of the locking bracket in the utility model;

[0025] Fig.11 It is a bottom view of the trapezoidal column in the utility model.

[0026] In the figure: 1, middle valve body; 2, first U-shaped plate; 3, second U-shaped plate; 4, strip hole; 5, guide column; 6, first circular hole; 7, side valve body; 8, vertical plate; 9, second circular hole; 10, sealing seat; 11, mounting frame; 12, ball valve switch assembly; 121, pneumatic actuator; 122, valve stem; 123, spherical valve core; 13, inclined hole; 14, locking bracket; 141, connecting block; 142, threaded cylinder; 143, bolt; 144, bearing; 145, first hollow block; 146, second hollow block; 147, rectangular ring; 15, trapezoidal groove; 16, trapezoidal column; 17, limit block; 18, square hole; 19, square cylinder; 20, square column; 21, spring; 22, fixing column; 23, fixing hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Embodiment 1:

[0030] Reference Figure 1-10A novel pneumatic high-pressure ball valve comprises a middle valve body 1, a first U-shaped plate 2 is fixedly connected to the surface of the middle valve body 1, a second U-shaped plate 3 is fitted on the side of the first U-shaped plate 2 away from the middle valve body 1, and strip holes 4 are provided on both the front and rear sides of the second U-shaped plate 3, and guide columns 5 are fixedly connected to both the front and rear sides of the first U-shaped plate 2, and the inner wall of the guide column 5 contacts the inner wall of the strip hole 4. Through the cooperation of the guide column 5 and the strip hole 4, the second U-shaped plate 3 can only move left and right, and a first circular hole 6 is provided on the side of the second U-shaped plate 3, and a side valve body 7 is fixedly connected to the inner wall of the first circular hole 6, and a vertical plate 8 is fitted on the side of the side valve body 7 and the left and right sides of the middle valve body 1, and a second circular hole 9 is provided inside the vertical plate 8, and a sealing seat 10 is bonded to the inner wall of the second circular hole 9, and the middle valve body 1 The inner wall of the middle valve body 1 and the inner wall of the side valve body 7 are in contact with the surface of the sealing seat 10. When the side valve body 7 and the middle valve body 1 clamp the vertical plate 8, the sealing seat 10 can be fixed in the pneumatic high-pressure ball valve through the cooperation of the side valve body 7, the middle valve body 1 and the vertical plate 8. When the side valve body 7 and the middle valve body 1 release the vertical plate 8, the sealing seat 10 can be directly taken out of the pneumatic high-pressure ball valve. The upper surface of the middle valve body 1 is fixedly connected with a mounting frame 11, and the upper surface of the mounting frame 11 is fixedly connected with a ball valve switch assembly 12. The inner wall of the middle valve body 1 and the side surface of the sealing seat 10 are in contact with the surface of the ball valve switch assembly 12. The upper and lower sides of the second U-shaped plate 3 are provided with inclined holes 13, and the inner wall of the inclined hole 13 is fitted with a locking bracket 14, and the back side of the locking bracket 14 is fixedly connected to the front side of the first U-shaped plate 2.

[0031] The ball valve switch assembly 12 includes an air-controlled actuator 121, the bottom of which is fixedly connected to the upper surface of the mounting frame 11, the bottom of which is fixedly connected to a valve stem 122, the bottom of which is fixedly connected to a spherical valve core 123, the inner wall of the middle valve body 1 and the side of the sealing seat 10 are in contact with the surface of the spherical valve core 123, the rotation of the spherical valve core 123 is controlled by the air-controlled actuator 121 and the valve stem 122, and the switch of the middle valve body 1 is controlled by the rotating spherical valve core 123.

[0032] The locking bracket 14 includes a connecting block 141, the back of the connecting block 141 is fixedly connected to the front of the first U-shaped plate 2, the inner wall of the connecting block 141 is fixedly connected to a threaded cylinder 142, the inner wall of the threaded cylinder 142 is threadedly connected to a bolt 143, the surface of the bolt 143 is fixedly connected to a bearing 144, the surface of the bearing 144 is fixedly connected to a first hollow block 145, the back of the first hollow block 145 is fixedly connected to a second hollow block 146, and the inner wall of the second hollow block 146 is fixedly connected to a rectangular The surface of the rectangular ring 147 contacts with the inner wall of the inclined hole 13. When the bolt 143 rotates, the rectangular ring 147 moves upward or downward through the cooperation of the bolt 143 and the threaded tube 142. When the rectangular ring 147 moves upward, the distance between the side valve body 7 and the middle valve body 1 is reduced through the cooperation of the rectangular ring 147 and the inclined hole 13. When the rectangular ring 147 moves downward, the distance between the side valve body 7 and the middle valve body 1 is increased through the cooperation of the rectangular ring 147 and the inclined hole 13.

[0033] Embodiment 2:

[0034] Reference Figure 1-11 A trapezoidal groove 15 is provided at the bottom of the vertical plate 8, and a trapezoidal column 16 is provided on the inner wall of the trapezoidal groove 15. The left and right sides of the trapezoidal column 16 are fixedly connected to the limiting blocks 17. Through the cooperation of the trapezoidal groove 15, the trapezoidal column 16 and the limiting blocks 17, the two vertical plates 8 can be connected together.

[0035] A square hole 18 is opened inside the trapezoidal column 16, and a square tube 19 is fixedly connected to the inner wall of the square hole 18. A square column 20 is fitted on the inner wall of the square tube 19. The upper surface of the square column 20 is fixedly connected to the bottom of the first U-shaped plate 2. Through the cooperation of the square tube 19 and the square column 20, the maintenance personnel can quickly align the sealing seat 10 with the middle valve body 1 when installing the sealing seat 10.

[0036] The left and right sides of the square tube 19 and the sides of the vertical plate 8 are fixedly connected with springs 21, and the sides of the vertical plate 8 are fixedly connected with fixing columns 22. The left and right sides of the first U-shaped plate 2 are provided with fixing holes 23, and the inner walls of the fixing holes 23 are in contact with the surfaces of the fixing columns 22. When the sealing seat 10 is aligned with the middle valve body 1, the fixing columns 22 can be inserted into the fixing holes 23 through the pulling force of the springs 21 on the vertical plate 8. At this time, the sealing seat 10 cannot be automatically moved out of the middle valve body 1 through the cooperation of the fixing columns 22 and the fixing holes 23, so that the maintenance personnel do not need to hold the trapezoidal columns 16 all the time when installing the sealing seat 10, thereby facilitating the maintenance personnel to install the sealing seat 10.

[0037] In the utility model, when the maintenance personnel replace the sealing seat 10 in the pneumatic high-pressure ball valve, they first rotate the bolt 143 to make the rectangular ring 147 move downward under the cooperation of the bolt 143 and the threaded tube 142, and then, through the cooperation of the rectangular ring 147 and the inclined hole 13, the distance between the side valve body 7 and the middle valve body 1 is increased. When the distance between the side valve body 7 and the middle valve body 1 is greater than the thickness of the sealing seat 10, the sealing seat 10 can be directly taken out from the pneumatic high-pressure ball valve. When installing the sealing seat 10, the vertical plate 8 is first placed between the side valve body 7 and the middle valve body 1, and then, the sealing seat 1 is pulled by the spring 21 on the vertical plate 8. 0 contacts the spherical valve core 123, and the fixing column 22 is inserted into the fixing hole 23. At this time, the sealing seat 10 cannot be automatically moved out of the middle valve body 1 through the cooperation of the fixing column 22 and the fixing hole 23. Then, by rotating the bolt 143, the rectangular ring 147 moves upward under the cooperation of the bolt 143 and the threaded cylinder 142. At this time, through the cooperation of the rectangular ring 147 and the inclined hole 13, the distance between the side valve body 7 and the middle valve body 1 is reduced. When the side valve body 7 and the middle valve body 1 clamp the vertical plate 8, the sealing seat 10 can be fixed in the pneumatic high-pressure ball valve through the cooperation of the side valve body 7, the middle valve body 1 and the vertical plate 8.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A novel pneumatic high-pressure ball valve, comprising a middle valve body (1), characterized in that: A first U-shaped plate (2) is fixedly connected to the surface of the middle valve body (1); a second U-shaped plate (3) is fittedly arranged on the side of the first U-shaped plate (2) away from the middle valve body (1); strip holes (4) are provided on both the front and rear sides of the second U-shaped plate (3); guide columns (5) are fixedly connected to both the front and rear sides of the first U-shaped plate (2); the inner wall of the guide column (5) contacts the inner wall of the strip hole (4); a first circular hole (6) is provided on the side of the second U-shaped plate (3); a side valve body (7) is fixedly connected to the inner wall of the first circular hole (6); a vertical plate (8) is fittedly arranged on the side of the side valve body (7) and the left and right sides of the middle valve body (1); a second circular hole (6) is provided inside the vertical plate (8); A hole (9) is formed in the middle of the second circular hole (9), a sealing seat (10) is bonded to the inner wall of the second circular hole (9), the inner wall of the middle valve body (1) and the inner wall of the side valve body (7) are in contact with the surface of the sealing seat (10), the upper surface of the middle valve body (1) is fixedly connected with a mounting frame (11), the upper surface of the mounting frame (11) is fixedly connected with a ball valve switch assembly (12), the inner wall of the middle valve body (1) and the side surface of the sealing seat (10) are in contact with the surface of the ball valve switch assembly (12), the upper and lower sides of the second U-shaped plate (3) are provided with inclined holes (13), the inner wall of the inclined hole (13) is fitted with a locking bracket (14), and the back side of the locking bracket (14) is fixedly connected to the front side of the first U-shaped plate (2).

2. A novel pneumatic high-pressure ball valve according to claim 1, characterized in that: The ball valve switch assembly (12) comprises a pneumatically controlled actuator (121), the bottom of which is fixedly connected to the upper surface of the mounting frame (11), the bottom of which is fixedly connected to a valve stem (122), the bottom of which is fixedly connected to a spherical valve core (123), and the inner wall of the middle valve body (1) and the side surface of the sealing seat (10) are both in contact with the surface of the spherical valve core (123).

3. A novel pneumatic high-pressure ball valve according to claim 1, characterized in that: The locking bracket (14) comprises a connecting block (141), the back side of the connecting block (141) is fixedly connected to the front side of the first U-shaped plate (2), the inner wall of the connecting block (141) is fixedly connected to a threaded cylinder (142), the inner wall of the threaded cylinder (142) is threadedly connected to a bolt (143), the surface of the bolt (143) is fixedly connected to a bearing (144), the surface of the bearing (144) is fixedly connected to a first hollow block (145), the back side of the first hollow block (145) is fixedly connected to a second hollow block (146), the inner wall of the second hollow block (146) is fixedly connected to a rectangular ring (147), and the surface of the rectangular ring (147) contacts the inner wall of the inclined hole (13).

4. A novel pneumatic high-pressure ball valve according to claim 1, characterized in that: A trapezoidal groove (15) is provided at the bottom of the vertical plate (8), a trapezoidal column (16) is provided on the inner wall of the trapezoidal groove (15), and a limiting block (17) is fixedly connected to the left and right sides of the trapezoidal column (16).

5. A novel pneumatic high-pressure ball valve according to claim 4, characterized in that: A square hole (18) is provided inside the trapezoidal column (16), a square tube (19) is fixedly connected to the inner wall of the square hole (18), a square column (20) is fitted on the inner wall of the square tube (19), and the upper surface of the square column (20) is fixedly connected to the bottom of the first U-shaped plate (2).

6. A novel pneumatic high-pressure ball valve according to claim 5, characterized in that: The left and right sides of the square tube (19) and the side of the vertical plate (8) are fixedly connected with springs (21), the side of the vertical plate (8) is fixedly connected with a fixing column (22), and the left and right sides of the first U-shaped plate (2) are provided with fixing holes (23), and the inner walls of the fixing holes (23) are in contact with the surface of the fixing column (22).

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