Full-bore horizontal eccentric ball valve

Abstract

The invention discloses a full-bore horizontal eccentric ball valve, and belongs to the field of ball valves, the full-bore horizontal eccentric ball valve comprises a ball valve body, two valve frames are fixed at the bottom of the ball valve body, a valve seat is arranged below the ball valve body and the two valve frames, the valve seat comprises a base, a circular groove is formed in the center of the upper surface of the base in a penetrating manner, and the circular groove is communicated with the circular groove. According to the movable ball valve, through the contraction action of the electric push rod, under transmission of structures such as the first connecting rod and the second connecting rod, the universal wheels extend out, the ball valve body and the valve seat are lifted, and the movable function of the ball valve is achieved; the transfer of the ball valve at different working positions is facilitated, and the maneuverability of equipment is greatly improved no matter the position of the ball valve is adjusted in a workshop or the ball valve is carried among different working areas; when the moving function is achieved, the gear is in transmission fit with the toothed plate, and the screw rod is in transmission fit with the clamping frame, so that the clamping frame can slide away from the valve frame along the sliding groove, and the ball valve body and the valve seat are convenient to disassemble and assemble.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, and in particular to a full-diameter horizontal eccentric ball valve. Background Art

[0002] In industrial fields, such as petrochemical, electric power, water supply and drainage and other pipeline systems, full-bore horizontal eccentric ball valves are widely used. During operation, ball valves are easily affected by vibrations due to factors such as fluid pressure fluctuations, flow shocks, and vibrations of surrounding equipment. Long-term vibrations may cause wear of internal parts of the ball valve and reduced sealing performance, which in turn affects the service life of the ball valve and the accuracy of fluid control. In addition, during the transportation and movement of the ball valve, it is also easy to be damaged by collisions;

[0003] In addition, traditional ball valves are often fixed in position after installation. When they need to be maintained, repaired or replaced, the disassembly and transportation process is very cumbersome, requiring a lot of manpower and time, and may cause damage to the ball valve and surrounding pipes. At the same time, with the continuous adjustment and optimization of production processes, it is sometimes necessary to adjust the position of the ball valve.

[0004] Therefore, the need for a full-bore horizontal eccentric ball valve that is easy to move and install has become a practical demand in industrial production. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a full-diameter horizontal eccentric ball valve, which solves the problems raised in the above-mentioned background technology.

[0006] Technical solution: In order to solve the above technical problems, according to one aspect of the present invention, more specifically, a full-diameter horizontal eccentric ball valve comprises a ball valve body, the bottom of the ball valve body is fixed with two valve racks, the ball valve body and the two valve racks are jointly provided with a valve seat, the valve seat comprises a base, a circular groove is penetrated through the center of the upper surface of the base, a lifting plate is slidably connected inside the circular groove, an electric push rod is fixed to the lower surface of the lifting plate, a middle plate is fixed to the bottom of the electric push rod, the front and rear sides and left and right sides of the middle plate are rotatably connected with connecting rod 1, the top of the connecting rod 1 is rotatably connected with a tooth plate, the opposite ends of the four tooth plates are rotatably connected with connecting rod 2, the front and rear surfaces and left and right sides of the base are opened A through-type side groove is provided, and the bottom end of the side groove extends to the lower surface of the base, and a lifting plate is provided inside the side groove, and the lifting plate is rotatably connected to the two bottom ends of the connecting rod, and a universal wheel is provided on the lower surface of the lifting plate. Two sliding grooves are provided on the left and right sides of the upper surface of the base, and the lower surfaces of the two tooth plates on the left and right sides are meshed and connected with gears, and a screw is fixed in the middle of the gear, and the front and rear ends of the screw are rotatably connected to the inside of the base, and the outer surface of the screw is threadedly connected to two clamping frames, and the clamping frames are located inside the sliding groove, and two plug holes are provided on the upper surface of the base, and the plug holes are located below the valve seat, a shock-absorbing block is provided inside the lifting plate, and a shock-absorbing plate is bonded to the lower surface of the middle plate.

[0007] Furthermore, slideways are symmetrically provided on the inner surface of the side grooves, and sliders are slidably connected inside the two slideways. The two sliders are fixedly connected to the lifting plate, and the lifting plate is slidably connected to the base through the sliders and the slideways.

[0008] Furthermore, the clamping frame is an L-shaped structure, the inner sides of the two clamping frames are in contact with the outer surface of the valve seat, a plug rod is fixed to the lower surface of the valve seat, the plug rod is plugged into the socket, and the base is detachably connected to the ball valve body.

[0009] Furthermore, the four corner ends of the middle plate are rotatably connected to the rotating frame two, the lower surface of the lifting plate is rotatably connected to four rotating frames one, the bottom end of the rotating frame one is rotatably connected to the top of the rotating frame two, vertical frames are provided on both sides of the outer surface of the rotating frame two, and movable grooves are penetrated through the two vertical frames, and movable rods are movably connected inside the two movable grooves, and the two movable rods are fixedly connected to the top of the rotating frame two, and a telescopic frame is commonly fixed on the top of the two vertical frames, and the opposite ends of the four telescopic frames penetrate to the outside of the base, and the end of the telescopic frame away from the base is rotatably connected to a fixed shaft, and the top and bottom of the fixed shaft are rotatably connected to a support frame, and the two support frames on the same side are slidably connected with a telescopic plate.

[0010] Furthermore, a rubber layer is provided on the outer surface of the support frame.

[0011] Furthermore, the inner wall of the shock absorbing block is in contact with the bottom of the ball valve body.

[0012] Furthermore, the outer surface of the clamping frame fits the inner surface of the sliding groove, and the clamping frame is slidably connected to the sliding groove.

[0013] Furthermore, the upper surfaces of the four tooth plates are all in contact with the inner upper surface of the base.

[0014] The beneficial effects of the full-diameter horizontal eccentric ball valve of the present invention are:

[0015] The present invention realizes the movable function of the ball valve by the contraction action of the electric push rod and the transmission of the first and second connecting rod structures, so that the universal wheel extends and the ball valve body and the valve seat are lifted; it is convenient to transfer the ball valve to different working positions, whether it is position adjustment in the workshop or transportation between different working areas, which greatly improves the mobility of the equipment;

[0016] Easy to install and disassemble: While the moving function is realized, the transmission cooperation between the gear and the tooth plate, the screw and the clamping frame enables the clamping frame to slide away from the valve frame along the slide groove, thereby facilitating the disassembly and installation of the ball valve body and the valve seat; for the maintenance, overhaul or replacement of the equipment, the difficulty of work is greatly reduced, and the time and labor costs required are reduced;

[0017] The shock-absorbing block is located inside the lifting plate and fits the bottom of the ball valve body. The shock-absorbing plate is located on the lower surface of the middle plate. The two work together when the ball valve is placed to effectively reduce the vibration of the ball valve. Especially when the ball valve is in operation or slightly disturbed by the outside world, it can avoid the impact of vibration on the internal structure and sealing performance of the ball valve, thereby extending the service life of the ball valve.

[0018] Collision protection: When the ball valve moves via universal wheels, the design of the telescopic frame and the support frame plays an important role; the outward movement of the support frame increases the vertical space area, reducing the probability of the upper ball valve being damaged by accidental collision during movement; at the same time, the rubber layer on the outer surface of the support frame can avoid direct rigid collision with external obstacles, further protecting the ball valve body and preventing it from being damaged by strong vibration; during transportation, the protective measures can significantly improve the safety of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0022] Figure 3It is a structural schematic diagram of the valve seat in the present invention;

[0023] Figure 4 It is a schematic diagram of the top view structure of the present invention;

[0024] Figure 5 For the present invention Figure 5 Schematic diagram of the cross-sectional structure along the AA direction;

[0025] Figure 6 It is a three-dimensional schematic diagram of the internal structure of the valve seat in the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at point B in the middle.

[0027] In the figure: 1. ball valve body; 2. valve frame; 3. valve seat; 4. plug rod; 5. base; 6. circular groove; 7. lifting plate; 8. electric push rod; 9. middle plate; 10. connecting rod 1; 11. tooth plate; 12. connecting rod 2; 13. side groove; 14. lifting plate; 15. universal wheel; 16. slideway; 17. slider; 18. slideway; 19. gear; 20. screw; 21. clamp; 22. socket; 23. shock-absorbing block; 24. shock-absorbing plate; 25. rotating frame 1; 26. rotating frame 2; 27. vertical frame; 28. movable groove; 29. ​​movable rod; 30. telescopic frame; 31. fixed shaft; 32. support frame; 33. telescopic plate. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0029] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Reference Figure 1-7A full-diameter horizontal eccentric ball valve comprises a ball valve body 1, a ball valve body 1, the ball valve body 1 is an existing full-diameter horizontal eccentric ball valve, two valve racks 2 are fixed at the bottom, a valve seat 3 is arranged under the ball valve body 1 and the two valve racks 2, the valve seat 3 comprises a base 5, a circular groove 6 is penetrated through the center of the upper surface of the base 5, a lifting plate 7 is slidably connected inside the circular groove 6, an electric push rod 8 is fixed to the lower surface of the lifting plate 7, a middle plate 9 is fixed to the bottom of the electric push rod 8, the middle plate 9 is rotatably connected to a connecting rod 10 on the front and back and left and right sides, the top of the connecting rod 10 is rotatably connected to a tooth plate 11, and the opposite ends of the four tooth plates 11 are rotatably connected to connecting rods 2 12, and the front and back surfaces and left and right sides of the base 5 are all provided with through-type side grooves 13 , the bottom end of the side groove 13 extends to the lower surface of the base 5, a lifting plate 14 is provided inside the side groove 13, the lifting plate 14 is rotatably connected to the bottom end of the connecting rod 12, a universal wheel 15 is provided on the lower surface of the lifting plate 14, two slide grooves 18 are provided on the left and right sides of the upper surface of the base 5, the lower surfaces of the two tooth plates 11 on the left and right sides are meshed and connected with gears 19, a screw 20 is fixed in the middle of the gear 19, the front and rear ends of the screw 20 are rotatably connected to the inside of the base 5, the outer surface of the screw 20 is threadedly connected to two clamps 21, the clamp 21 is located inside the slide groove 18, two plug holes 22 are provided on the upper surface of the base 5, the plug hole 22 is located below the valve seat 3, a shock absorbing block 23 is provided inside the lifting plate 7, and a shock absorbing plate 24 is bonded to the lower surface of the middle plate 9;

[0031] The inner surface of the side groove 13 is symmetrically provided with slideways 16, and sliders 17 are slidably connected inside the two slideways 16. The two sliders 17 are fixedly connected to the lifting plate 14, and the lifting plate 14 is slidably connected to the base 5 through the sliders 17 and the slideways 16;

[0032] The clamping frame 21 is an L-shaped structure, the inner sides of the two clamping frames 21 are both in contact with the outer surface of the valve seat 3, a plug rod 4 is fixed to the lower surface of the valve seat 3, the plug rod 4 is plugged into the plug hole 22, and the base 5 is detachably connected to the ball valve body 1;

[0033] The four corner ends of the middle plate 9 are rotatably connected to the rotating frame 26, and the lower surface of the lifting plate 7 is rotatably connected to four rotating frames 1 25. The bottom end of the rotating frame 1 25 is rotatably connected to the top of the rotating frame 2 26. Vertical frames 27 are provided on both sides of the outer surface of the rotating frame 26. The two vertical frames 27 are provided with movable grooves 28 running through them. The two movable grooves 28 are movably connected with movable rods 29. The two movable rods 29 are fixedly connected to the top of the rotating frame 26. A telescopic frame 30 is commonly fixed on the top of the two vertical frames 27. The opposite ends of the four telescopic frames 30 are all passed through the outside of the base 5. The end of the telescopic frame 30 away from the base 5 is rotatably connected to a fixed shaft 31. The top and bottom of the fixed shaft 31 are rotatably connected to a support frame 32. The two supports 32 on the same side are slidably connected with a telescopic plate 33. Figure 1-6The support frame 32 shown is close to the valve seat 3, reducing the area when placed, and the shock-absorbing plate 24 made of rubber material is in contact with the ground, and the universal wheel 15 is raised so that it will not move arbitrarily, and also cooperates with the shock-absorbing block 23 to improve the shock-absorbing effect;

[0034] When the electric push rod 8 contracts, the lifting plate 7 and the middle plate 9 will move relative to each other, the shock absorbing plate 24 will no longer be in contact with the ground, and the shock absorbing block 23 will no longer be in contact with the ball valve body 1, so that it is convenient for personnel to replace the shock absorbing block 23. At the same time, the lifting middle plate 9 pushes the tooth plate 11 to slide outward through the connecting rod 10, and the universal wheel 15 is extended along the sliding groove 18 through the connecting rod 2 12, so that the universal wheel 15 can lift the valve seat 3 and the ball valve body 1 to support it, which can be easily moved. At the same time, the gear 19 drives the screw 20 to rotate, so that the clamping frame 21 slides along the sliding groove 18 away from the valve frame 2, which can facilitate the ball valve. The body 1 is disassembled or installed on the valve seat 3, and when the middle plate 9 moves, the rotating frame 26 and the rotating frame 1 25 rotate, and the movable rod 29 pushes the inner wall of the movable groove 28, so that the telescopic frame 30 pushes the support frame 32 to move outward, so that the support frame 32 is away from the surface of the base 5. When the ball valve body 1 is moved by the universal wheel 15, it is avoided that the valve seat 3 is directly hit rigidly due to accidental collision, so that the ball valve body 1 above is damaged. In addition, the external support frame 32 increases the vertical area, reduces the probability of direct collision of the ball valve body 1 above when moving, and improves the transportation safety of the ball valve.

[0035] Reference Figure 2-3 A rubber layer is provided on the outer surface of the support frame 32. When the support frame 32 moves outward, it contacts the inner wall of the hydropower well and the inner wall of the hydropower cabinet, so that the valve seat 3 can avoid direct collision with external obstacles when moving, and generate strong vibration to affect the ball valve body 1 above.

[0036] Reference Figure 2 The inner wall of the shock absorbing block 23 is in contact with the bottom of the ball valve body 1 , and the shock absorbing block 23 is pressed tightly by the lifting plate 7 and the ball valve body 1 .

[0037] Reference Figure 2-3 The outer surface of the clamp 21 fits the inner surface of the slide groove 18, and the clamp 21 is slidably connected to the slide groove 18. Under the limit of the slide groove 18, the clamp 21 can be stably slid by the thread when the screw rod 20 rotates.

[0038] Reference Figure 2 The upper surfaces of the four tooth plates 11 are all in contact with the inner upper surface of the base 5 , and the tooth plates 11 can run stably under the support of the gear 19 and the inner part of the base 5 .

[0039] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A full-diameter horizontal eccentric ball valve, comprising a ball valve body (1), characterized in that: The ball valve body (1) has two valve racks (2) fixed at the bottom. A valve seat (3) is provided below the ball valve body (1) and the two valve racks (2). The valve seat (3) includes a base (5). A circular groove (6) is provided through the center of the upper surface of the base (5). A lifting plate (7) is slidably connected inside the circular groove (6). An electric push rod (8) is fixed to the lower surface of the lifting plate (7). A middle plate (9) is fixed to the bottom of the electric push rod (8). The middle plate (9) is rotatably connected to a connecting rod 1 (10) at the front and rear sides and the left and right sides. The top of the connecting rod 1 (10) is rotatably connected to a tooth plate (11). The opposite ends of the four tooth plates (11) are rotatably connected to connecting rods 2 (12). The front and rear surfaces and the left and right sides of the base (5) are provided with through-type side grooves (13). The bottom ends of the side grooves (13) extend to the lower surface of the base (5). ) is provided with a lifting plate (14) inside, the lifting plate (14) is rotatably connected to the bottom end of the second connecting rod (12), a universal wheel (15) is provided on the lower surface of the lifting plate (14), two slide grooves (18) are provided on the left and right sides of the upper surface of the base (5), the lower surfaces of the two tooth plates (11) located on the left and right sides are meshed and connected with gears (19), a screw rod (20) is fixed in the middle of the gear (19), the front and rear ends of the screw rod (20) are rotatably connected to the inside of the base (5), the outer surface of the screw rod (20) is threadedly connected to two clamping frames (21), the clamping frames (21) are located in the inside of the slide groove (18), two insertion holes (22) are provided on the upper surface of the base (5), the insertion holes (22) are located below the valve seat (3), a shock absorbing block (23) is provided inside the lifting plate (7), and a shock absorbing plate (24) is bonded to the lower surface of the middle plate (9).

2. A full-diameter horizontal eccentric ball valve according to claim 1, characterized in that: The inner surface of the side groove (13) is symmetrically provided with slideways (16), and two slideways (16) are slidably connected with sliders (17) inside. The two sliders (17) are fixedly connected to the lifting plate (14), and the lifting plate (14) is slidably connected to the base (5) through the sliders (17) and the slideways (16).

3. A full-bore horizontal eccentric ball valve according to claim 1, characterized in that: The clamping frame (21) is an L-shaped structure. The inner sides of the two clamping frames (21) are both in contact with the outer surface of the valve seat (3). A plug rod (4) is fixed to the lower surface of the valve seat (3). The plug rod (4) is plugged into the plug hole (22). The base (5) is detachably connected to the ball valve body (1).

4. A full-diameter horizontal eccentric ball valve according to claim 1, characterized in that: The four corner ends of the middle plate (9) are rotatably connected to a rotating frame 2 (26), the lower surface of the lifting plate (7) is rotatably connected to four rotating frames 1 (25), the bottom end of the rotating frame 1 (25) is rotatably connected to the top end of the rotating frame 2 (26), vertical frames (27) are arranged on both sides of the outer surface of the rotating frame 2 (26), and movable grooves (28) are penetrated inside the two vertical frames (27), and movable rods (29) are movably connected inside the two movable grooves (28), and the two movable rods (29) are fixedly connected to the top of the rotating frame 2 (26), and a telescopic frame (30) is commonly fixed to the top of the two vertical frames (27). The opposite ends of the four telescopic frames (30) are all extended to the outside of the base (5). The end of the telescopic frame (30) away from the base (5) is rotatably connected to a fixed shaft (31). The top and bottom of the fixed shaft (31) are rotatably connected to a support frame (32), and a telescopic plate (33) is commonly slidably connected inside the two support frames (32) on the same side.

5. A full-diameter horizontal eccentric ball valve according to claim 4, characterized in that: The outer surface of the support frame (32) is provided with a rubber layer.

6. The full-diameter horizontal eccentric ball valve according to claim 1, characterized in that: The inner wall of the shock absorbing block (23) fits the bottom of the ball valve body (1).

7. The full-diameter horizontal eccentric ball valve according to claim 1, characterized in that: The outer surface of the clamping frame (21) fits the inner surface of the sliding groove (18), and the clamping frame (21) is slidably connected to the sliding groove (18).

8. The full-diameter horizontal eccentric ball valve according to claim 1, characterized in that: The upper surfaces of the four tooth plates (11) are all in contact with the inner upper surface of the base (5).

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