High-pressure-resistant blind plate valve

Abstract

The utility model relates to the technical field of blind plate valves, and discloses a high-pressure-resistant blind plate valve which comprises a valve body, a valve plate is slidably connected into the valve body, two fixing grooves are formed in the outer surface of the valve plate, and a communicating ring is arranged in the fixing groove in the rearmost side. According to the high-pressure-resistant blind plate valve, the purpose of self-locking of the valve plate can be achieved through the arranged worm and worm wheel, the situation that the valve plate moves automatically is effectively avoided, through the arranged conical block, when the valve body enters the valve body, the valve body extrudes the conical block and the piston disc to enter the cavity of the closing disc, and when the conical block and the connecting pipe are concentric, the valve plate is closed. When the conical block can enter the interior of the connecting pipe and unstable pressure is generated in the pipeline, the damper and the spring are extruded through the arranged piston disc, the purposes of buffering and damping can be achieved, the overall anti-pressure capacity is effectively improved, and meanwhile in the moving process of the valve body, the purpose of guiding flow of circulating substances can be achieved through the arranged curved surface of the conical block.

Description

Technical Field

[0001] The present application relates to the technical field of blind plate valves, and in particular to a high-pressure resistant blind plate valve. Background Art

[0002] A blind valve is a gate valve used to cut off gaseous media. It can be operated manually, electrically, pneumatically or hydraulically. There are many types of blind valves, including electric blind valves, hydraulic blind valves, pneumatic blind valves, closed plug valves and electric open blind valves.

[0003] The existing patent (publication number: CN217081480U) discloses a blind plate valve, comprising a valve body and a valve plate that slidably cooperates with the valve body; a rack is provided at the bottom of the valve plate, which is connected to a motor provided on the valve body through the rack; a slide groove is also provided on the upper surface of the valve plate, and a stabilizer is slidably installed in the slide groove; the stabilizer comprises a slide plate that slides outside the valve body and a slider that slides in the slide groove, the slide plate is connected to the slider through a fastener provided, and a spring is also sleeved on the outside of the fastener; one end of the spring is connected to the fastener, and the other end of the spring is in conflict with the slide plate; in the above manner, when the motor is working, the valve plate is urged to slide, and at this time the slide plate slides outside the valve body, thereby supporting the other end of the valve plate, thereby facilitating the stable sliding of the valve plate in the valve body, and at the same time, the spring is used to buffer the vibration of the valve plate during sliding, thereby further ensuring the smooth sliding of the valve plate.

[0004] During the use of the above-mentioned blind plate valve, the valve plate moves inside the valve body to close or open the external pipeline. When the motor is working, the valve plate is prompted to slide. At this time, the slide plate slides on the outside of the valve body, thereby supporting the other end of the valve plate, which makes it easier for the valve plate to slide stably in the valve body. However, it lacks a self-locking structure. After the adjustment is completed, the valve plate is easily offset by the vibration generated by the flowing medium, affecting the sealing or connection effect. At the same time, during the movement of the valve plate, the sealing disk is in partial contact with the circulating material, which is easy to produce uneven force, thereby causing the pressure of some connecting ribs to increase, which is easy to deform and affect the sealing effect. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a high-pressure resistant blind plate valve with advantages such as high pressure resistance. It solves the problem that after the adjustment is completed, the valve plate is easily offset by the vibration generated by the flowing medium, affecting the sealing or connectivity effect. At the same time, during the movement of the valve plate, the sealing disk is in partial contact with the circulating material, which is easy to produce uniform force, thereby causing the pressure of some connecting ribs to increase, which is easy to deform and affect the sealing effect.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a high-pressure resistant blind plate valve, comprising a valve body, a valve plate slidably connected to the inside of the valve body, two fixed grooves are provided on the outer surface of the valve plate, wherein a connecting ring is provided inside the rearmost fixed groove, and a closing disk is provided inside the frontmost fixed groove;

[0007] A cavity is provided on the left side of the closing disk, a piston disk is slidably inserted inside the cavity, a conical block is fixedly connected to the left side of the piston disk, a spring is provided inside the cavity, two ends of the spring are respectively fixedly connected to the piston disk and the inner wall of the closing disk, a plurality of dampers are fixedly connected to the inner wall of the closing disk, a connecting rod is hinged at the telescopic end of each of the dampers, and the other end of each of the connecting rods is hinged to the piston disk.

[0008] Through the above scheme, the threaded rod and sleeve are set, which can achieve the purpose of driving the valve plate to move inside the valve body, thereby achieving the effect of closing or connecting the external pipeline. The worm and worm gear are set, which can achieve the purpose of self-locking the valve plate, and effectively avoid the valve plate from self-moving. The conical block is set, when entering the valve body, the valve body can squeeze the conical block and the piston disc into the cavity of the closing disc. When the conical block is concentric with the connecting pipe, the conical block can enter the connecting pipe. When unstable pressure is generated inside the pipeline, the piston disc squeezes the damper and spring to achieve the purpose of buffering and shock absorption, and effectively improves the overall pressure resistance. At the same time, during the movement of the valve body, the curved surface of the conical block can achieve the purpose of guiding the flowing material, which can effectively reduce the pressure of the closing disc and effectively reduce the probability of its deformation.

[0009] Furthermore, the outer surfaces of the connecting ring and the closing disk are fixedly connected with a plurality of triangular ribs arranged in a circumference, and each of the triangular ribs is fixedly connected to the inner wall of the fixing groove adjacent to it.

[0010] Through the above solution, by setting the triangular ribs, the purpose of fixing the connecting ring and the closing disk can be achieved.

[0011] Furthermore, the left and right side surfaces of the valve body are fixedly connected with connecting pipes, and flanges are installed at the ends of the two connecting pipes that are away from each other.

[0012] Through the above solution, by setting the flange, it is convenient for users to connect with external pipelines.

[0013] Furthermore, the upper surface and the bottom of the valve body are provided with sliding grooves, the upper surface and the bottom of the valve plate are fixedly connected with sliding blocks, and each of the sliding blocks is slidably connected to the sliding groove adjacent to it.

[0014] Through the above solution, by setting the slider and the slide groove, the purpose of the valve plate moving stably inside the valve body can be achieved.

[0015] Furthermore, two symmetrical threaded plates are fixedly connected to the upper surface of the valve body, a threaded rod is rotatably connected between the two threaded plates, a sleeve is fixedly connected to the top of the uppermost slider, and the sleeve is threadedly connected to the threaded rod.

[0016] Through the above solution, the sleeve can be moved by rotating the threaded rod.

[0017] Furthermore, a worm gear is fixedly connected to the rear end of the threaded rod, two stabilizing plates are fixedly connected to the upper surface of the valve body, a worm is rotatably connected between the two stabilizing plates, and the worm is meshingly connected to the worm gear.

[0018] Through the above scheme, by setting the worm and the worm wheel, the self-locking purpose of the valve plate can be achieved and the stability of the valve plate can be improved.

[0019] Furthermore, the left end of the worm is fixedly connected to an external motor output end.

[0020] Through the above solution, by setting up an external motor, it is possible to provide power for the rotation of the worm.

[0021] Furthermore, the two connecting pipes and the connecting ring are located on the same axis.

[0022] Through the above scheme, by setting the connecting ring, the purpose of connecting with the external pipeline can be achieved.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This high-pressure resistant blind plate valve can achieve the purpose of driving the valve plate to move inside the valve body through the provided threaded rod and sleeve, thereby achieving the effect of closing or connecting the external pipeline. The provided worm and worm gear can achieve the purpose of self-locking the valve plate, effectively avoiding the valve plate from moving on its own. The provided conical block can squeeze the conical block and the piston disc into the cavity of the closing disc when entering the valve body. When the conical block is concentric with the connecting pipe, the conical block can enter the connecting pipe. When unstable pressure is generated inside the pipeline, the provided piston disc squeezes the damper and the spring to achieve the purpose of buffering and shock absorption, effectively improving the overall pressure resistance. At the same time, during the movement of the valve body, the provided conical block curved surface can achieve the purpose of guiding the flowing material, effectively reduce the pressure of the closing disc, and effectively reduce the probability of its deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the overall structure of this application Figure 1;

[0026] Figure 2 A three-dimensional diagram of the overall structure of this application Figure 2 ;

[0027] Figure 3 A cross-sectional view of the front view of the overall structure of this application;

[0028] Figure 4 This is the valve plate structure diagram for this application.

[0029] In the figure:

[0030] 1. Valve body; 101. Valve plate; 2. Fixed groove; 3. Connecting ring; 4. Closing disk; 5. Cavity; 6. Piston disk; 7. Conical block; 8. Spring; 9. Damper; 10. Connecting rod; 11. Triangular rib; 12. Connecting pipe; 13. Flange; 14. Slide; 15. Slider; 16. Threaded plate; 17. Threaded rod; 18. Sleeve; 19. Worm gear; 20. Stabilizing plate; 21. Worm. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 2 and 4 A high-pressure resistant blind plate valve in this embodiment includes a valve body 1, a valve plate 101 is slidably connected inside the valve body 1, and connecting pipes 12 are fixedly connected to the left and right sides of the valve body 1. Flanges 13 are installed at the ends of the two connecting pipes 12 that are away from each other. Through the arrangement of the flanges 13, it is convenient for users to connect with external pipelines. Slide grooves 14 are opened on the upper surface and bottom of the valve body 1, and sliders 15 are fixedly connected to the upper surface and bottom of the valve plate 101. Each slider 15 is slidably connected to the slide groove 14 adjacent to it. Through the arrangement of the sliders 15 and the slide grooves 14, the purpose of stably moving the valve plate 101 inside the valve body 1 can be achieved.

[0033] See also Figure 1 , Figure 2 and Figure 3The two connecting pipes 12 are on the same axis as the connecting ring 3. The connecting ring 3 can be used to connect external pipelines. The rear end of the threaded rod 17 is fixedly connected to a worm gear 19. The upper surface of the valve body 1 is fixedly connected to two stabilizing plates 20. A worm 21 is rotatably connected between the two stabilizing plates 20. The worm 21 is meshed with the worm gear 19. The worm 21 and the worm gear 19 are configured to achieve the self-locking purpose of the valve plate 101 and improve the stability of the valve plate 101. The left end of the worm 21 is fixedly connected to the output end of an external motor. The external motor can provide power for the rotation of the worm 21.

[0034] See also Figure 1 , Figure 2 and Figure 3 Two symmetrical threaded plates 16 are fixedly connected to the upper surface of the valve body 1, and a threaded rod 17 is rotatably connected between the two threaded plates 16. A sleeve 18 is fixedly connected to the top of the uppermost slider 15, and the sleeve 18 is threadedly connected to the threaded rod 17. The movement of the sleeve 18 can be achieved by rotating the threaded rod 17. Two fixed grooves 2 are provided on the outer surface of the valve plate 101, wherein a connecting ring 3 is provided inside the rearmost fixing groove 2, and a closing disk 4 is provided inside the frontmost fixing groove 2. The outer surfaces of the connecting ring 3 and the closing disk 4 are fixedly connected with a plurality of triangular ribs 11 arranged in a circumferential manner, and each triangular rib 11 is fixedly connected to the inner wall of the fixing groove 2 adjacent to it. The setting of the triangular rib 11 can achieve the fixing purpose of the connecting ring 3 and the closing disk 4.

[0035] See also Figure 1 , Figure 2 and Figure 3 A cavity 5 is provided on the left side of the closing disk 4, and a piston disk 6 is slidably inserted inside the cavity 5. A conical block 7 is fixedly connected to the left side of the piston disk 6. A spring 8 is provided inside the cavity 5, and the two ends of the spring 8 are respectively fixedly connected to the piston disk 6 and the inner wall of the closing disk 4. A plurality of dampers 9 are fixedly connected to the inner wall of the closing disk 4, and a connecting rod 10 is hinged at the telescopic end of each damper 9, and the other end of each connecting rod 10 is hinged to the piston disk 6.

[0036] A high-pressure blind plate valve in this embodiment can achieve the purpose of driving the valve plate 101 to move inside the valve body 1 through the provided threaded rod 17 and sleeve 18, thereby achieving the effect of closing or connecting the external pipeline. The provided worm 21 and worm wheel 19 can achieve the purpose of self-locking the valve plate 101, effectively avoiding the situation where the valve plate 101 moves by itself. Through the provided conical block 7, when entering the interior of the valve body 1, the valve body 1 can squeeze the conical block 7 and the piston disc 6 into the cavity 5 of the closing disc 4. When the conical block 7 is concentric with the connecting pipe 12, the conical block 7 can enter the interior of the connecting pipe 12. When unstable pressure is generated inside the pipeline, the provided piston disc 6 squeezes the damper 9 and the spring 8, thereby achieving the purpose of buffering and shock absorption, effectively improving the overall pressure resistance. At the same time, during the movement of the valve body 1, the curved surface of the provided conical block 7 can achieve the purpose of guiding the flowing material, effectively slowing down the pressure of the closing disc 4, and effectively reducing the probability of its deformation.

[0037] The working principle of the above embodiment is as follows: when in use, the worm 21 is driven to rotate by an external motor, which drives the threaded rod 17 to rotate, and then drives the sleeve 18 to drive the valve plate 101 to move inside the valve body 1. When the connecting ring 3 and the connecting pipe 12 are on the same axis, the external pipeline is in a connected state. When the valve plate 101 moves, the conical block 7 is squeezed against the edge of the valve body 1, and the conical block 7 can compress the spring 8 to enter the cavity 5 inside the sealing disk. When the conical block 7 is concentric with the connecting pipe 12, the conical block 7 is reset under the reset of the spring 8. When the threaded rod 17 is reset, the conical block 7 is contacted and squeezed with the edge of the connecting block, so that the conical block 7 can enter the inside of the sealing disk again. At the same time, the curved surface of the conical block 7 can guide the circulating material when moving, which can reduce the axial load and effectively reduce the deformation of the sealing disk and the triangular rib 11.

[0038] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high pressure resistant blind plate valve, comprising a valve body (1), characterized in that: A valve plate (101) is slidably connected to the interior of the valve body (1), and two fixing grooves (2) are provided on the outer surface of the valve plate (101), wherein a connecting ring (3) is provided inside the rearmost fixing groove (2), and a closing disk (4) is provided inside the frontmost fixing groove (2); A cavity (5) is provided on the left side of the closing disk (4), a piston disk (6) is slidably inserted into the cavity (5), a conical block (7) is fixedly connected to the left side of the piston disk (6), a spring (8) is provided inside the cavity (5), two ends of the spring (8) are respectively fixedly connected to the piston disk (6) and the inner wall of the closing disk (4), a plurality of dampers (9) are fixedly connected to the inner wall of the closing disk (4), a connecting rod (10) is hingedly connected to the telescopic end of each damper (9), and the other end of each connecting rod (10) is hingedly connected to the piston disk (6).

2. A high pressure resistant blind plate valve according to claim 1, characterized in that: The outer surfaces of the connecting ring (3) and the closing disk (4) are both fixedly connected with a plurality of circumferentially arranged triangular ribs (11), and each of the triangular ribs (11) is fixedly connected to the inner wall of the adjacent fixing groove (2).

3. A high pressure resistant blind plate valve according to claim 1, characterized in that: The left and right side surfaces of the valve body (1) are both fixedly connected with connecting pipes (12), and flanges (13) are installed at the ends of the two connecting pipes (12) that are away from each other.

4. A high pressure resistant blind plate valve according to claim 1, characterized in that: The upper surface and the bottom of the valve body (1) are both provided with sliding grooves (14), and the upper surface and the bottom of the valve plate (101) are both fixedly connected with sliding blocks (15), and each of the sliding blocks (15) is slidably connected to the adjacent sliding groove (14).

5. A high pressure resistant blind plate valve according to claim 4, characterized in that: Two symmetrical threaded plates (16) are fixedly connected to the upper surface of the valve body (1), a threaded rod (17) is rotatably connected between the two threaded plates (16), a sleeve (18) is fixedly connected to the top of the uppermost slider (15), and the sleeve (18) is threadedly connected to the threaded rod (17).

6. A high pressure resistant blind plate valve according to claim 5, characterized in that: A worm gear (19) is fixedly connected to the rear end of the threaded rod (17), two stabilizing plates (20) are fixedly connected to the upper surface of the valve body (1), a worm (21) is rotatably connected between the two stabilizing plates (20), and the worm (21) is meshingly connected to the worm gear (19).

7. A high pressure resistant blind plate valve according to claim 6, characterized in that: The left end of the worm (21) is fixedly connected to an external motor output end.

8. The high pressure resistant blind plate valve according to claim 3, characterized in that: The two connecting pipes (12) and the connecting ring (3) are located on the same axis.

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