Convenient dismounting device for hydraulic support valve element for coal mine
By integrating an internal hex wrench and a circular socket into the disassembly device, the problem of uneven force in the downhole environment of hydraulic support valve core disassembly tools is solved, achieving convenient and efficient disassembly of valve cores of various specifications.
Patent Information
- Application Number
- CN202520047446.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-09
AI Technical Summary
Existing hydraulic support valve core disassembly tools are difficult to apply force evenly in harsh underground environments, which can easily cause the valve core to tilt and jam. In addition, they have poor versatility and affect disassembly efficiency.
A disassembly device integrating an internal hex wrench and circular sockets of different inner diameters was designed to ensure uniform force transmission. It is suitable for various valve core sizes and moves the valve core by impacting the socket.
It improves the reliability and efficiency of valve core disassembly, avoids valve core misalignment and jamming, and saves the cost of equipping various tools.
Smart Images
Figure CN223863699U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of hydraulic support auxiliary equipment, specifically relating to a convenient disassembly device for the valve core of a hydraulic support used in coal mines. Background Technology
[0002] In coal mining operations, hydraulic supports are one of the key pieces of equipment for ensuring safe production. Due to the extremely harsh underground environment, hydraulic supports frequently experience issues such as fluid leakage and cross-contamination. These problems are mostly caused by damage to the valve core within the valve assembly, requiring valve core disassembly for repair. However, the humid underground environment leads to varying degrees of rust and damage to the valve core. Furthermore, the narrow gap between the valve core and the valve orifice significantly increases the resistance during disassembly. Traditional valve core disassembly methods generally rely on simple tools, lacking specialized disassembly devices, making it difficult to ensure even and vertical force application during valve core removal. This can easily lead to the valve core becoming misaligned and stuck during disassembly, hindering successful removal and greatly reducing work efficiency. Existing disassembly tools are also limited in function and cannot accommodate valve cores of various sizes, lacking versatility. Therefore, it is necessary to develop a specialized tool that can adapt to various valve core sizes and is easy to operate, in order to improve valve core disassembly efficiency and ensure the smooth operation of coal mine production. Utility Model Content
[0003] The purpose of this utility model embodiment is to provide a convenient disassembly device for the valve core of a hydraulic support in a coal mine, so as to solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A convenient disassembly device for a hydraulic support valve core in a coal mine includes a slide rod. A first circular baffle and a second circular baffle are respectively installed at both ends of the slide rod. A first hexagonal wrench and a second hexagonal wrench, matching the internal hexagonal holes at the end of the valve core, are respectively installed at the other ends of the first and second circular baffles. A handle is installed in the middle of the slide rod. A first circular sleeve and a second circular sleeve, matching the end of the valve core, are respectively installed between the handle and the first and second circular baffles. The first and second circular sleeves can reciprocate along the slide rod.
[0006] Furthermore, the inner walls of the first and second circular sleeves are respectively provided with internal threads that match the external threads at the ends of the two valve cores. The inner diameter of the first circular sleeve is 37mm, and the inner diameter of the second circular sleeve is 34mm.
[0007] Furthermore, the handle is a cross-shaped handle and is welded perpendicularly to the slide bar.
[0008] Furthermore, the diameters of the first and second circular baffles are larger than the diameter of the slide rod but smaller than the inner diameter of the first circular sleeve.
[0009] Furthermore, the center lines of the first hex wrench, the first circular baffle, the first circular socket, the second hex wrench, the second circular baffle, the second circular socket, and the slide bar are on the same straight line.
[0010] Compared with the prior art, the present invention has the following advantages:
[0011] This utility model provides a convenient disassembly device for hydraulic support valve cores in coal mines. It integrates an internal hex wrench and two circular sleeves with different inner diameters. The two circular sleeves are suitable for disassembling two commonly used valve cores of different specifications, increasing the device's applicability and eliminating the need for multiple disassembly tools, thus saving costs. Furthermore, the center lines of the circular baffle, circular sleeves, and sliding rod are all on the same straight line. During disassembly, the circular sleeve at the other end acts as a hammer, striking the circular baffle to move the valve core. This ensures uniform force transmission during disassembly, preventing valve core misalignment and jamming due to uneven force, and improving the reliability of the disassembly operation. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0013] Figure 2 This is an exploded view of the present invention.
[0014] Figure 3 This is a schematic diagram of the planar structure of this utility model.
[0015] In the diagram: 1. Sliding rod; 2. First circular baffle; 3. First hex wrench; 4. First circular socket; 5. Handle; 6. Second circular baffle; 7. Second hex wrench; 8. Second circular socket. Detailed Implementation
[0016] The technical solutions described below, in conjunction with embodiments of the present invention, will be clearly and completely described. Obviously, the described embodiments are only a part of the present invention, and not all of it. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.
[0017] like Figure 1 , Figure 2 , Figure 3As shown, this embodiment provides a convenient disassembly device for the valve core of a hydraulic support in a coal mine, including a slide rod 1. A first circular baffle 2 and a second circular baffle 6 are respectively installed at both ends of the slide rod 1. A handle 5 is vertically welded to the middle of the slide rod 1. A first hexagonal wrench 3 and a second hexagonal wrench 7 that match the hexagonal hole at the end of the valve core are fixedly installed at the other ends of the first circular baffle 2 and the second circular baffle 6. A first circular sleeve 4 that matches the end of the valve core is installed between the first circular baffle 2 and the handle 5. A second circular sleeve 8 that matches the end of the valve core is installed between the second circular baffle 6 and the handle 5. The first circular sleeve 4 and the second circular sleeve 8 can reciprocate along the slide rod 1.
[0018] In this embodiment, a matching circular sleeve is selected according to the valve core size before use. When using, first insert the Allen wrench into the Allen hole of the valve core, rotate the handle to completely detach the threaded end of the valve core from the valve assembly, then screw the selected circular sleeve onto the threaded end of the valve core, and manually drive the other end of the circular sleeve to repeatedly strike the circular baffle. The generated kinetic energy drives the entire valve core to move outward until the valve core is completely detached from the valve assembly.
[0019] The above description is only a preferred embodiment of the present utility model. The present utility model is not limited to the above-described embodiments. It should be noted that any modifications or equivalent substitutions made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A convenient disassembly device for the valve core of a hydraulic support in coal mines, characterized in that, The slide rod (1) includes a first circular baffle (2) and a second circular baffle (6) installed at both ends of the slide rod (1). A handle (5) is vertically welded to the middle of the slide rod (1). A first hexagonal wrench (3) and a second hexagonal wrench (7) matching the hexagonal hole at the end of the valve core are fixedly installed at the other end of the first circular baffle (2) and the handle (5). A first circular sleeve (4) matching the end of the valve core is installed between the first circular baffle (2) and the handle (5). A second circular sleeve (8) matching the end of the valve core is installed between the second circular baffle (6) and the handle (5). The first circular sleeve (4) and the second circular sleeve (8) can reciprocate along the slide rod (1).
2. The convenient disassembly device for the valve core of a hydraulic support in a coal mine according to claim 1, characterized in that... The inner walls of the first circular sleeve (4) and the second circular sleeve (8) are respectively provided with internal threads that match the external threads at the ends of the two valve cores. The inner diameter of the first circular sleeve (4) is 34mm and the inner diameter of the second circular sleeve (8) is 37mm.
3. The convenient disassembly device for the valve core of a hydraulic support in a coal mine according to claim 1, characterized in that... The diameters of the first circular baffle (2) and the second circular baffle (6) are greater than the diameter of the slide rod (1) and less than the inner diameter of the first circular sleeve (4).
4. The convenient disassembly device for the valve core of a hydraulic support in a coal mine according to claim 1, characterized in that... The handle (5) is a cross-shaped handle and is welded perpendicularly to the slide bar (1).
5. A convenient disassembly device for hydraulic support valve core in coal mines according to claim 1, characterized in that... The center lines of the slide bar (1), the first circular baffle (2), the first hex wrench (3), the first circular socket (4), the second circular baffle (6), the second hex wrench (7), and the second circular socket (8) are on the same straight line.