Automatic pressure maintaining hydraulic control butterfly valve

Abstract

The utility model discloses an automatic pressure-maintaining hydraulic control butterfly valve, which belongs to the technical field of pressure-maintaining hydraulic control butterfly valves, and comprises a valve shell, a valve rod is rotatably connected in the valve shell, a driving structure is arranged at the top end of the valve rod, a sleeve is sleeved on the surface of the valve rod, a mounting component is arranged on one side of the sleeve, and the mounting component is arranged on the other side of the sleeve. The automatic pressure maintaining hydraulic control butterfly valve comprises a mounting assembly, a valve plate is arranged on one side of the mounting assembly, a spring is arranged on one side of the valve plate, and a first supporting sliding block is arranged at one end of the spring. By arranging a first supporting cylinder, a second supporting sliding groove, a second supporting sliding block and a second extending cylinder, the position of a supporting seat can be conveniently adjusted and controlled, and by arranging a positioning hole, the valve plate can be conveniently and rapidly supported. And the structure can be further fixed and supported.

Description

Technical Field

[0001] This utility model relates to the field of pressure-holding hydraulic control butterfly valve technology, and more specifically, it relates to an automatic pressure-holding hydraulic control butterfly valve. Background Technology

[0002] The pressure-holding hydraulic control butterfly valve is a type of hydraulically controlled butterfly valve with a pressure-holding function. Driven by a hydraulic valve actuator, it can output linear or angular movement. Features of the pressure-holding hydraulic control butterfly valve include its ability to replace traditional gate valves (butterfly valves) and check valves after installation, a low flow resistance coefficient, and its use in industrial pipeline systems to control fluid flow, particularly suitable for applications requiring rapid shut-off and pressure maintenance. It also protects against backflow of media and pump reversal caused by sudden pump stoppage, making it a crucial safety device for pump units and pipeline networks.

[0003] However, most traditional pressure-holding hydraulic butterfly valves can only be directly connected to pipelines and cannot be connected to external systems, which affects the stability of installation and use, and makes it inconvenient to flush the valve plate with water, thus affecting the service life of the valve plate. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic pressure-holding hydraulic butterfly valve, which has the characteristics of ensuring installation stability, providing buffer protection for the valve plate, and ensuring the service life of the valve plate.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides an automatic pressure-holding hydraulic butterfly valve, including a valve housing, a valve stem rotatably connected inside the valve housing, a driving structure at the top of the valve stem, a sleeve fitted onto the surface of the valve stem, an installation component on one side of the sleeve, a valve plate on one side of the installation component, a spring on one side of the valve plate, a first support slider at one end of the spring, a first extension cylinder on one side of the first support slider, a buffer plate on one side of the first extension cylinder, a second support cylinder at the bottom of the valve housing, a second support groove inside the second support cylinder, a second support slider slidably connected within the second support groove, a second extension cylinder at the bottom of the second support slider, a support seat at the bottom of the second extension cylinder, and a positioning hole on the surface of the support seat.

[0008] When using an automatic pressure-holding hydraulic butterfly valve according to this technical solution, a spring can be set to limit and buffer the first support slider, thereby limiting and supporting the first support slider, the first extension cylinder and the buffer plate, and effectively protecting the valve plate. By setting a second support cylinder, a second support groove, a second support slider and a second extension cylinder, the position of the support seat can be easily adjusted and controlled. By setting a positioning hole, the structure can be further fixed and supported.

[0009] Furthermore, a connecting block is provided on the surface of the valve housing, and a connecting hole is formed on the surface of the connecting block.

[0010] Furthermore, a first support cylinder is provided on one side of the valve plate, and a first support groove is provided inside the first support cylinder, and the first support slider is slidably connected inside the first support groove.

[0011] Furthermore, a support sleeve is provided inside the second support cylinder, and the second extension cylinder is sleeved inside the support sleeve.

[0012] Furthermore, a connecting sleeve is provided inside the valve plate, and a connecting rod is sleeved inside the connecting sleeve. A limit plate is welded to one end of the connecting rod, and the other end of the connecting rod is welded to one side of the first support slider.

[0013] Furthermore, the mounting assembly includes a mounting plate and a threaded hole. The mounting plate is disposed on one side of the sleeve, and the threaded hole is formed inside the mounting plate and the valve plate. A bolt is threaded into the threaded hole.

[0014] (III) Beneficial Effects

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. By setting a spring, the first support slider can be limited and buffered, thereby limiting and supporting the first support slider, the first extension cylinder and the buffer plate, and effectively protecting the valve plate.

[0017] 2. By setting a second support cylinder, a second support groove, a second support slider, and a second extension cylinder, the position of the support base can be easily adjusted and controlled. By setting positioning holes, the structure can be further fixed and supported. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view structural diagram of the present utility model;

[0020] Figure 2 This is a top view cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the installation components in this utility model;

[0022] Figure 4 for Figure 2 A schematic diagram of the structure at point A in the middle.

[0023] The labels in the attached diagram are:

[0024] 1. Support base; 2. Positioning hole; 3. Second extension cylinder; 4. Support sleeve; 5. Second support cylinder; 6. Second support groove; 7. Second support slider; 8. Connecting block; 9. Connecting hole; 10. Valve housing; 11. Mounting assembly; 111. Mounting plate; 112. Threaded hole; 113. Bolt; 12. Valve stem; 13. Sleeve; 14. Valve plate; 15. Drive structure; 16. Limiting plate; 17. Connecting rod; 18. Connecting sleeve; 19. Spring; 20. First support cylinder; 21. First support groove; 22. First extension cylinder; 23. Buffer plate; 24. First support slider. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the technical solutions in the specific embodiments of this utility model are clearly and completely described below to further illustrate this utility model. Obviously, the specific embodiments described are only a part of the embodiments of this utility model, and not all of them.

[0026] Example:

[0027] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0028] Please see Figure 1-4This utility model provides a technical solution: an automatic pressure-holding hydraulic butterfly valve, including a valve housing 10, a valve stem 12 rotatably connected inside the valve housing 10, a drive structure 15 at the top of the valve stem 12, a sleeve 13 sleeved on the surface of the valve stem 12, an installation component 11 on one side of the sleeve 13, a valve plate 14 on one side of the installation component 11, a spring 19 on one side of the valve plate 14, a first support slider 24 at one end of the spring 19, a first extension cylinder 22 on one side of the first support slider 24, and a buffer plate 23 on one side of the first extension cylinder 22. By setting the spring 19, the first support slider 24 can be limited and buffered, thereby enabling the first support slider to be limited and buffered. Block 24, the first extension cylinder 22, and the buffer plate 23 provide limiting support, which can effectively protect the valve plate 14. The bottom of the valve shell 10 is provided with a second support cylinder 5. The second support cylinder 5 has a second support groove 6 inside. The second support slider 7 is slidably connected in the second support groove 6. The bottom of the second support slider 7 is provided with a second extension cylinder 3. By setting the second support cylinder 5, the second support groove 6, the second support slider 7, and the second extension cylinder 3, the position of the support seat 1 can be easily adjusted and controlled. The bottom of the second extension cylinder 3 is provided with a support seat 1. The surface of the support seat 1 has a positioning hole 2. By setting the positioning hole 2, the structure can be further fixed and supported.

[0029] Specifically, a connecting block 8 is provided on the surface of the valve housing 10, and a connecting hole 9 is provided on the surface of the connecting block 8. A first support cylinder 20 is provided on one side of the valve plate 14, and a first support groove 21 is provided inside the first support cylinder 20. A first support slider 24 is slidably connected inside the first support groove 21.

[0030] By adopting the above technical solution, the valve housing 10 can be easily connected to the pipeline by setting the connecting block 8 and the connecting hole 9. The buffer plate 23 can be limited and supported by setting the first support cylinder 20, the first support groove 21 and the first support slider 24.

[0031] Specifically, a support sleeve 4 is provided inside the second support cylinder 5, and the second extension cylinder 3 is sleeved inside the support sleeve 4. A connecting sleeve 18 is provided inside the valve plate 14, and a connecting rod 17 is sleeved inside the connecting sleeve 18. A limit plate 16 is welded to one end of the connecting rod 17, and the other end of the connecting rod 17 is welded to one side of the first support slider 24.

[0032] By adopting the above technical solution, the second extension cylinder 3 can be sleeved and supported by the support sleeve 4, and the first limiting slider can be limited and supported by the connecting sleeve 18 and the connecting rod 17.

[0033] Specifically, the mounting assembly 11 includes a mounting plate 111 and a threaded hole 112. The mounting plate 111 is located on one side of the sleeve 13, and the threaded hole 112 is opened inside the mounting plate 111 and the valve plate 14. A bolt 113 is threadedly connected inside the threaded hole 112.

[0034] By adopting the above technical solution and by setting threaded holes 112 and bolts 113, the stability of the mounting plate 111 during installation can be guaranteed.

[0035] The working principle of this utility model is as follows:

[0036] When the structure needs to be installed, the valve stem 12 can be inserted into the valve housing 10 first. Then, with the help of the mounting assembly 11, the valve plate 14 can be installed on the surface of the threaded hole 112. After that, the drive structure 15 is connected to the external hydraulic system. After the valve plate 14 is installed, the structure is connected to the pipeline with the help of the connecting block 8 and the connecting port. The second extension cylinder 3 is pulled to adjust the position of the support seat 1. The structure is further fixed and supported with the help of the positioning hole 2. After the structure is installed, the external hydraulic system can work to drive the drive structure 15 and the valve stem 12 to rotate, thereby driving the valve plate 14 to rotate and adjusting the angle of the valve plate 14. When the valve plate 14 is closed, the water can be buffered and protected with the help of the spring 19 and the buffer plate 23.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An automatic pressure retaining hydraulic operated butterfly valve comprising a valve housing (10) characterized in that: The valve housing (10) is rotatably connected with a valve rod (12), the valve rod (12) is provided with a driving structure (15) at the top end, the valve rod (12) is sleeved with a sleeve (13), one side of the sleeve (13) is provided with a mounting assembly (11), one side of the mounting assembly (11) is provided with a valve plate (14), one side of the valve plate (14) is provided with a spring (19), one end of the spring (19) is provided with a first supporting sliding block (24), one side of the first supporting sliding block (24) is provided with a first extension cylinder (22), one side of the first extension cylinder (22) is provided with a buffer plate (23). The bottom of the valve housing (10) is provided with a second supporting cylinder (5), the second supporting cylinder (5) is internally provided with a second supporting sliding groove (6), the second supporting sliding groove (6) is internally and slidably connected with a second supporting sliding block (7), the second supporting sliding block (7) is provided with a second extension cylinder (3) at the bottom, the second extension cylinder (3) is provided with a supporting seat (1) at the bottom, and the supporting seat (1) is provided with a positioning hole (2) in the surface.

2. The automatic pressure maintaining hydraulic control butterfly valve according to claim 1, characterized in that: The surface of the valve housing (10) is provided with a connecting block (8), and the connecting block (8) is provided with a connecting hole (9) in the surface.

3. The automatic pressure maintaining hydraulic operated butterfly valve according to claim 1, characterized in that: One side of the valve plate (14) is provided with a first supporting cylinder (20), the first supporting cylinder (20) is internally provided with a first supporting sliding groove (21), and the first supporting sliding block (24) is slidably connected in the first supporting sliding groove (21).

4. The automatic pressure maintaining hydraulic operated butterfly valve according to claim 1, characterized in that: The second supporting cylinder (5) is internally provided with a supporting sleeve (4), and the second extension cylinder (3) is sleeved in the supporting sleeve (4).

5. The automatic pressure maintaining hydraulic operated butterfly valve according to claim 1, characterized in that: The valve plate (14) is internally provided with a connecting sleeve (18), the connecting sleeve (18) is internally sleeved with a connecting rod (17), one end of the connecting rod (17) is welded with a limiting plate (16), and the other end of the connecting rod (17) is welded on one side of the first supporting sliding block (24).

6. The automatic pressure maintaining hydraulic operated butterfly valve according to claim 1, characterized in that: The mounting assembly (11) comprises a mounting plate (111) and a threaded hole (112), the mounting plate (111) is arranged on one side of the sleeve (13), the threaded hole (112) is arranged in the mounting plate (111) and the valve plate (14), and the threaded hole (112) is internally and threadedly connected with a bolt (113).

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