Dismounting and mounting device for pressure reducing valve

Abstract

The embodiment of the utility model provides a dismounting and mounting device for a pressure reducing valve. The dismounting and mounting device comprises a support assembly, a driving assembly and a traction piece. The first end of the support assembly is fixedly connected with a valve seat assembly of the pressure reducing valve, and the second end of the support assembly is arranged above the valve seat assembly. The traction piece is erected on the support assembly. One end of the traction piece bypasses the second end of the support assembly to be connected with a valve cover assembly of the pressure reducing valve, or one end of the traction piece bypasses the second end of the support assembly to be connected with a throttling valve of the pressure reducing valve; the other end of the traction piece is connected with the driving assembly. It can be understood that the driving assembly moves the valve deck assembly or the throttling valve through the pulling rope, so that ascending and descending of the position of the valve deck assembly or the position of the throttling valve are facilitated, and then assembling or disassembling of the valve deck assembly, the valve seat assembly and the throttling cone is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of pressure reducing valve disassembly and assembly, and in particular to a pressure reducing valve disassembly and assembly device. Background Art

[0002] Pressure reducing valves are designed specifically for water supply systems operating under complex operating conditions and are widely used in hydropower stations. They adjust pressure and flow by varying the opening of the throttling cone, achieving pressure reduction through the throttling effect. When inlet pressure or flow changes, the valve automatically adjusts itself using the energy of the medium itself, maintaining the outlet pressure at the preset low value.

[0003] The pressure reducing valve comprises a valve cover assembly, a valve seat assembly and a throttle cone, wherein the throttle cone is interference fit in the valve seat assembly, and the valve cover assembly is fitted on the valve seat assembly.

[0004] However, due to the heavy weight of the valve cover assembly and the interference fit between the throttle valve and the valve seat assembly, it is difficult to disassemble and assemble the valve cover assembly, the valve seat assembly and the throttle cone. Utility Model Content

[0005] An embodiment of the present application provides a pressure reducing valve disassembly and assembly device for disassembling the pressure reducing valve, facilitating the assembly or disassembly of the valve cover assembly, the valve seat assembly, and the throttling cone.

[0006] The embodiment of the present application provides a pressure reducing valve disassembly and assembly device, including a bracket assembly, a drive assembly, and a traction member;

[0007] The first end of the bracket assembly is fixedly connected to the valve seat assembly of the pressure reducing valve, and the second end of the bracket assembly is arranged above the valve seat assembly;

[0008] The traction member is mounted on the bracket assembly;

[0009] One end of the traction member bypasses the second end of the bracket assembly and is connected to the valve cover assembly of the pressure reducing valve, or one end of the traction member bypasses the second end of the bracket assembly and is connected to the throttle valve of the pressure reducing valve;

[0010] The other end of the traction member is connected to the driving assembly.

[0011] In a feasible implementation, the bracket assembly includes a first rod, a second rod, a first steering member, and a second steering member;

[0012] The first rod is vertically arranged on the valve seat assembly, and the second rod is horizontally arranged, one end of the second rod is fixedly connected to the first rod, and the other end of the second rod is located directly above the center of the valve seat assembly;

[0013] The first steering member is provided at the connection between the first rod and the second rod, and the second steering member is provided at an end of the second rod away from the first rod;

[0014] The traction member is mounted on the first steering member and the second steering member.

[0015] In a feasible implementation, the drive assembly includes a drive motor and a groove wheel, the drive motor is fixedly connected to the first rod, the groove wheel is fixedly connected to the drive motor, one end of the traction member is connected to the groove wheel, and the drive motor drives the traction member to move through the groove wheel to lift / place the valve cover assembly or throttle valve.

[0016] In a feasible implementation, the pressure reducing valve disassembly and assembly device further includes a rotating assembly, the first rod is vertically disposed on the rotating assembly, and the rotating assembly is connected to the valve seat assembly.

[0017] In a feasible implementation, the pressure reducing valve disassembly and assembly device further includes a base, the rotating assembly is fixedly connected to the base, and the base is fixedly connected to the valve seat assembly.

[0018] In a feasible implementation, the bracket assembly further includes an oblique brace, one end of the oblique brace is fixedly connected to the first rod, and the other end of the oblique brace is fixedly connected to the second rod.

[0019] In a feasible implementation, the pressure reducing valve disassembly and assembly device further includes a hook, which is connected to an end of the traction member away from the drive assembly, and the hook is used to connect to the valve cover assembly or the throttle valve.

[0020] In a feasible implementation, the first rod and the second rod are both configured as hollow rectangular steel.

[0021] In a possible implementation, the rotating assembly is configured as a rotating platform.

[0022] An embodiment of the present application provides a pressure reducing valve assembly and disassembly device, comprising a bracket assembly, a drive assembly, and a traction member; the first end of the bracket assembly is fixedly connected to the valve seat assembly of the pressure reducing valve, and the second end of the bracket assembly is disposed above the valve seat assembly; the traction member is mounted on the bracket assembly; one end of the traction member bypasses the second end of the bracket assembly to connect to the valve cover assembly of the pressure reducing valve, or one end of the traction member bypasses the second end of the bracket assembly to connect to the throttle valve of the pressure reducing valve; the other end of the traction member is connected to the drive assembly. It is understood that the drive assembly moves the valve cover assembly or the throttle valve via a traction rope, thereby facilitating the raising and lowering of the position of the valve cover assembly or the throttle valve, thereby facilitating the assembly or disassembly of the valve cover assembly, the valve seat assembly, and the throttle cone. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present application and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of the pressure reducing valve disassembly and assembly device and the pressure reducing valve after assembly according to one embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the lifting valve cover assembly of the pressure reducing valve disassembly and assembly device;

[0026] Figure 3 It is a schematic diagram of the disassembly and assembly device for the pressure reducing valve to lift the throttle valve;

[0027] Description of reference numerals:

[0028] 100-bracket assembly; 200-drive assembly; 300-traction component; 400-valve seat assembly; 500-valve cover assembly; 600-throttle valve; 700-rotating assembly; 800-base;

[0029] 110 - first rod; 120 - second rod; 130 - first steering member; 140 - second steering member; 150 - diagonal support; 210 - driving motor; 220 - sheave. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions in this application, the following will provide a clear and complete description of the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0031] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0033] Pressure reducing valves are designed specifically for water supply systems operating under complex operating conditions and are widely used in hydropower stations. They adjust pressure and flow by varying the opening of the throttling cone, achieving pressure reduction through the throttling effect. When inlet pressure or flow changes, the valve automatically adjusts itself using the energy of the medium itself, maintaining the outlet pressure at the preset low value.

[0034] The pressure reducing valve comprises a valve cover assembly, a valve seat assembly and a throttle cone, wherein the throttle cone is interference fit in the valve seat assembly, and the valve cover assembly is fitted on the valve seat assembly.

[0035] However, due to the heavy weight of the valve cover assembly and the interference fit between the throttle valve and the valve seat assembly, it is difficult to disassemble and assemble the valve cover assembly, the valve seat assembly and the throttle cone.

[0036] In order to facilitate the assembly or disassembly of the valve cover assembly, the valve seat assembly and the throttle cone, an embodiment of the present application provides a pressure reducing valve disassembly device. The solution provided by the embodiment of the present application will be described in detail below in conjunction with the drawings in the specification.

[0037] Figure 1 This is a schematic diagram of the pressure reducing valve disassembly and assembly device and the pressure reducing valve after assembly according to one embodiment of the present application; Figure 2 is a schematic diagram of a poppet valve cover assembly 500 of a pressure reducing valve disassembly and assembly device; Figure 3 It is a schematic diagram of the pressure reducing valve disassembly and assembly device lifting the throttle valve 600.

[0038] Reference Figures 1 to 3 As shown, an embodiment of the present application provides a pressure reducing valve disassembly and assembly device, including a bracket assembly 100 , a drive assembly 200 and a traction member 300 .

[0039] The first end of the bracket assembly 100 is fixedly connected to the valve seat assembly 400 of the pressure reducing valve, and the second end of the bracket assembly 100 is disposed above the valve seat assembly 400. Exemplarily, the first end of the bracket assembly 100 is directly fixedly mounted on the valve seat assembly 400 of the pressure reducing valve, but it can also be mounted via other connectors. The second end of the bracket assembly 100 is located above the valve seat assembly 400, preferably directly above the center of the valve seat assembly 400, thereby facilitating the movement of the valve cover assembly 500 and the throttle valve 600.

[0040] Furthermore, the traction member 300 is mounted on the bracket assembly 100. When assembling or disassembling the valve cover assembly 500, one end of the traction member 300 bypasses the second end of the bracket assembly 100 and connects to the valve cover assembly 500 of the pressure reducing valve. When assembling or disassembling the throttle valve 600, one end of the traction member 300 bypasses the second end of the bracket assembly 100 and connects to the throttle valve 600 of the pressure reducing valve. The other end of the traction member 300 is connected to the drive assembly 200, which uses a traction rope to move the valve cover assembly 500 or throttle valve 600, thereby facilitating the raising and lowering of the valve cover assembly 500 or throttle valve 600, and further facilitating the assembly or disassembly of the valve cover assembly 500, valve seat assembly 400, and throttle cone.

[0041] For example, the traction member 300 may be a steel cable or a traction rope. The driving assembly 200 may be a linear driving assembly 200 , for example, the driving assembly 200 may be a cylinder or a hydraulic driving assembly 200 , or may be a driving motor 210 .

[0042] Reference Figures 1 to 3 As shown, the bracket assembly 100 includes a first rod 110, a second rod 120, a first steering member 130, and a second steering member 140. The first rod 110 is vertically mounted on the valve seat assembly 400, while the second rod 120 is horizontally mounted. One end of the second rod 120 is fixedly connected to the first rod 110, and the other end of the second rod 120 is located directly above the center of the valve seat assembly 400. The first steering member 130 is located at the junction of the first and second rods 110, 120, and the second steering member 140 is located at the end of the second rod 120 away from the first rod 110. The traction member 300 is mounted on the first and second steering members 130, 140. The respective mounting of the first and second steering members 130, 140 on the first and second rods 110, 120, facilitates movement of the traction member 300, thereby facilitating movement of the valve cover assembly or the throttle valve 600. For example, the first and second steering members 130, 140 can each be a fixed pulley.

[0043] For example, the first rod 110 and the second rod 120 may both be hollow rectangular steel, thereby ensuring strength while reducing the overall weight as much as possible.

[0044] In some other examples, the bracket assembly 100 further includes at least one diagonal brace 150, one end of which is fixedly connected to the first rod 110, and the other end of which is fixedly connected to the second rod 120. The presence of the diagonal brace 150 can enhance the connection strength between the second rod 120 and the first rod 110, thereby preventing the second rod 120 from deforming due to excessive force.

[0045] In some examples, the drive assembly 200 includes a drive motor 210 and a sheave 220. The drive motor 210 is fixedly connected to the first rod 110. The sheave 220 is fixedly connected to the drive motor 210. One end of the traction member 300 is connected to the sheave 220. The drive motor 210 drives the traction member 300 to move through the sheave 220 to lift / place the valve cover assembly 500 or the throttle valve 600. The rotation of the drive motor 210 drives the sheave 220 to rotate. The traction member 300 is wound around the sheave 220, thereby driving the valve cover assembly 500 or the throttle valve 600 to move. Figures 1 to 3 As shown, the pressure reducing valve assembly and disassembly device further includes a rotating assembly 700. A first rod 110 is vertically mounted on the rotating assembly 700, which is connected to the valve seat assembly 400. When disassembling the valve cover assembly 500 or the throttle valve 600, the position of the second rod 120 can be adjusted accordingly. For example, when disassembling the valve cover assembly 500, the valve cover assembly 500 is first lifted using a traction rope. The first rod 110 and the second rod 120 are then rotated, causing the valve cover assembly 500 to rotate and move to a desired position. It is understood that the same operation can be performed when disassembling the throttle valve 600.

[0046] For example, the rotating assembly 700 may be a rotating platform. In addition, in some other examples, the pressure reducing valve disassembly and assembly device further includes a base 800 , the rotating assembly 700 is fixedly connected to the base 800 , and the base 800 is fixedly connected to the valve seat assembly 400 .

[0047] In some examples, to facilitate connection of the traction member 300 to the valve cover assembly 500 and the throttle valve 600, a hook is provided at the end of the traction member 300. For example, the hook is connected to the end of the traction member 300 away from the drive assembly 200, and is used to connect to the valve cover assembly 500 or the throttle valve 600.

[0048] Additionally, in some examples, when the valve cover assembly 500 is lifted, a spring stopper may be provided on the lower surface of the valve cover assembly 500 to prevent the spring in the valve cover assembly 500 from falling during the lifting process.

[0049] The following describes the solution of the embodiment of the present application by taking the process of disassembling the throttle valve 600 into account.

[0050] To disassemble the throttle valve 600 of the pressure reducing valve, first securely install the pressure reducing valve disassembly and assembly device on the valve seat assembly 400. Then, connect the hook at the end of the traction member 300 to the valve cover assembly 500. The drive motor 210 is activated, rotating the traction member 300, which lifts the valve cover assembly 500 to a desired height. The first and second rods 110 and 120 are then rotated, driving the valve cover assembly 500. After the valve cover assembly 500 is moved to a desired position, the drive motor 210 is reversed, placing the valve cover assembly 500 in its desired location.

[0051] Disconnect the hook from the valve cover assembly 500 and rotate the second rod 120 above the throttle valve 600. Connect the hook to the throttle valve 600 and start the drive motor 210. The drive motor 210 rotates again to pull the traction member 300, which lifts the throttle valve 600 to a desired height. Rotate the first rod 110 and the second rod 120, causing the second rod 120 to rotate the throttle valve 600. After the throttle valve 600 is moved to the desired position, the drive motor 210 is reversed to place the throttle valve 600 in the desired position, completing the removal of the throttle valve 600. It should be understood that the installation process for the throttle valve 600 is the reverse of the above process.

[0052] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application based on the several embodiments provided in the present application to obtain other embodiments, and these embodiments do not exceed the scope of protection of the present application.

[0053] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not intended to limit the scope of protection of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of protection of the embodiments of the present application.

Claims

1. A pressure reducing valve disassembly and assembly device, characterized in that: It comprises a support assembly (100), a driving assembly (200) and a traction member (300); The first end of the bracket assembly (100) is fixedly connected to the valve seat assembly (400) of the pressure reducing valve, and the second end of the bracket assembly (100) is arranged above the valve seat assembly (400); The traction member (300) is mounted on the bracket assembly (100); One end of the traction member (300) bypasses the second end of the bracket assembly (100) and is connected to the valve cover assembly (500) of the pressure reducing valve, or one end of the traction member (300) bypasses the second end of the bracket assembly (100) and is connected to the throttle valve (600) of the pressure reducing valve; The other end of the traction member (300) is connected to the driving assembly (200).

2. The pressure reducing valve disassembly and assembly device according to claim 1, characterized in that: The bracket assembly (100) includes a first rod (110), a second rod (120), a first steering member (130), and a second steering member (140); The first rod (110) is vertically arranged on the valve seat assembly (400), and the second rod (120) is horizontally arranged, one end of the second rod (120) is fixedly connected to the first rod (110), and the other end of the second rod (120) is located directly above the center of the valve seat assembly (400); The first steering member (130) is provided at the connection between the first rod (110) and the second rod (120), and the second steering member (140) is provided at an end of the second rod (120) away from the first rod (110); The traction member (300) is mounted on the first steering member (130) and the second steering member (140).

3. The pressure reducing valve disassembly and assembly device according to claim 2, characterized in that: The driving assembly (200) comprises a driving motor (210) and a sheave (220), wherein the driving motor (210) is fixedly connected to the first rod (110), the sheave (220) is fixedly connected to the driving motor (210), one end of the traction member (300) is connected to the sheave (220), and the driving motor (210) drives the traction member (300) to move via the sheave (220) to lift / place the valve cover assembly (500) or the throttle valve (600).

4. The pressure reducing valve disassembly and assembly device according to claim 2, characterized in that: The pressure reducing valve disassembly and assembly device further comprises a rotating assembly (700), the first rod (110) is vertically arranged on the rotating assembly (700), and the rotating assembly (700) is connected to the valve seat assembly (400).

5. The pressure reducing valve disassembly and assembly device according to claim 4, characterized in that: The pressure reducing valve disassembly and assembly device further comprises a base (800), the rotating assembly (700) is fixedly connected to the base (800), and the base (800) is fixedly connected to the valve seat assembly (400).

6. The pressure reducing valve disassembly and assembly device according to claim 2, characterized in that: The bracket assembly (100) further includes a diagonal brace (150), one end of the diagonal brace (150) is fixedly connected to the first rod (110), and the other end of the diagonal brace (150) is fixedly connected to the second rod (120).

7. The pressure reducing valve disassembly and assembly device according to claim 1, characterized in that: The pressure reducing valve disassembly and assembly device further comprises a hook connected to an end of the traction member (300) away from the drive assembly (200), and the hook is used to be connected to the valve cover assembly (500) or the throttle valve (600).

8. The pressure reducing valve disassembly and assembly device according to claim 2, characterized in that: The first rod (110) and the second rod (120) are both configured as hollow rectangular steel.

9. The pressure reducing valve disassembly and assembly device according to claim 4, characterized in that: The rotating assembly (700) is configured as a rotating platform.

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