A dismounting device for coal mine machinery maintenance
By designing a handle with a pluggable connection unit and a disassembly device for the limiting plate, the problem of operating in narrow spaces during coal mine machinery maintenance was solved, achieving a stable and expandable force application length and improving maintenance efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANKUANG ENERGY GRP CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing coal mine machinery maintenance tools are difficult to rotate in confined spaces, and the existing extension rod connections are unstable, posing safety hazards. Furthermore, the tools have poor adaptability and increase labor intensity.
A disassembly device comprising a grip, a circular groove, a second connecting unit, and a first connecting unit is designed. By inserting the second connecting unit and the first connecting unit into the grip, the force application length is increased, and a stable connection is achieved through a limiting plate and a threaded connection, making it suitable for operation in narrow spaces.
It reduces the difficulty of operation, improves the applicability and safety of tools in confined spaces, and reduces the types of tools to carry and the intensity of labor.
Smart Images
Figure CN224527088U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mine machinery maintenance technology, specifically a disassembly device for coal mine machinery maintenance. Background Technology
[0002] Coal mining machinery is crucial equipment in coal mining. It is complex in structure, large in size, and typically operates in confined, dimly lit underground tunnels. During equipment maintenance, it is often necessary to disassemble bolts and nuts that are deeply embedded in the structure or located in narrow gaps. In such conditions, maintenance personnel generally use traditional tools such as wrenches and sockets.
[0003] However, existing disassembly tools have significant drawbacks: First, the handle length of traditional wrenches or sockets is fixed. When the operating space is too confined (e.g., the internal clearance of the equipment is smaller than the handle's swing radius), the handle cannot achieve a sufficient rotation angle, making disassembly impossible and even requiring the partial disassembly of other structures to create space, greatly reducing maintenance efficiency. Second, to solve space issues, extension rods are sometimes needed, but existing extension rods are usually single-function and have unstable connections. They are prone to wobbling, disengagement, or thread stripping when torque is applied, posing safety hazards. Finally, a single set of tools often cannot adapt to various extreme working conditions, requiring maintenance personnel to carry multiple tool sizes, increasing labor intensity and operational complexity.
[0004] Therefore, there is an urgent need for a dedicated disassembly device that can adapt to operation in confined spaces, provide a stable and expandable force application length, and is easy to carry, in order to overcome the shortcomings of the existing technology. Utility Model Content
[0005] The purpose of this utility model is to provide a disassembly device for coal mine machinery maintenance, in order to solve the problem mentioned in the background art that when disassembling and repairing coal mine machinery, the space at some connection points of the coal mine machinery is small, which increases the difficulty of rotating the handle.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a disassembly device for coal mining machinery maintenance, the disassembly device being used for maintaining coal mining machinery, comprising a handle, a circular groove, a second connecting unit, and a first connecting unit: the end of the handle is provided with a circular groove, a portion of the second connecting unit is inserted into the circular groove, a portion of the first connecting unit is inserted into the second connecting unit, and the first connecting unit and the second connecting unit are inserted to increase the force application length.
[0007] Preferably, the second connecting unit includes a second grip rod that is partially inserted into the circular groove, and a limit plate is connected to the second grip rod.
[0008] Preferably, the limiting plate, the second grip, and the circular groove are all circular in design, with the diameter of the limiting plate being larger than the diameter of the circular groove, and the diameter of the second grip being smaller than the diameter of the circular groove.
[0009] Preferably, the top of the second grip bar is provided with a second internal threaded groove for the first connecting unit to connect to, and the second internal threaded groove extends through the top of the second grip bar.
[0010] Preferably, the first connecting unit includes a threaded connecting rod threadedly connected in the second built-in threaded groove, the top of the threaded connecting rod extending out of the second built-in threaded groove and connected to a first grip.
[0011] Preferably, the first grip is circular, and the diameter of the first grip is the same as the diameter of the second grip.
[0012] Preferably, the top of the first grip bar is provided with a first built-in threaded groove, and the diameter of the first built-in threaded groove is the same as the diameter of the second built-in threaded groove.
[0013] Preferably, a limiting member is connected to the end of the grip away from the circular groove, and a sliding member is slidably connected to the end face of the limiting member away from the grip. A control member for driving the sliding member to slide is provided inside the grip.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This disassembly device for coal mine machinery maintenance allows the operator to rotate the handle by holding the top of the first or second connecting unit at the circular groove position, thus converting the vertical force into the horizontal force and reducing the difficulty of operating the handle; at the same time, the first internal threaded groove and threaded connecting rod are designed in the first handle, and the second internal threaded groove is designed on the second handle, so that the length of the first and second connecting units can be increased, further expanding the scope of use of the handle. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of a partial explosion structure of the present invention; Figure 3 For the present utility model Figure 2 A magnified view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the grip structure of this utility model; Figure 5 This is a schematic diagram of the structure connecting the first connecting unit and the second connecting unit of this utility model.
[0016] In the picture: 1. Handle; 11. Limiting component; 12. Sliding component; 13. Control component; 14. Circular groove; 2. First connecting unit; 21. First grip rod; 22. Threaded connecting rod; 23. First internal threaded groove; 3. Second connecting unit; 31. Second grip rod; 32. Limiting plate; 33. Second internal threaded groove. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Example 1 like Figure 1-5 As shown, a disassembly device for coal mining machinery maintenance is disclosed. This disassembly device is used for maintaining coal mining machinery and includes a handle 1. The end of the handle 1 has a circular groove 14. It should be noted that the circular groove 14 is designed to extend longitudinally through the handle 1. A portion of the second connecting unit 3 is inserted into the circular groove 14. The second connecting unit 3 and the circular groove 14 are inserted together, so that the handle 1 can convert the longitudinal force into the lateral force when in use. A portion of the first connecting unit 2 is inserted into the second connecting unit 3. The first connecting unit 2 can increase the length of the second connecting unit 3, thereby increasing the applicability of the entire disassembly device when in use. The first connecting unit 2 and the second connecting unit 3 are inserted together to increase the force application length.
[0019] The effect achieved by the entire first embodiment is that when the lateral space of the disassembly operation space is too small, a second connecting unit 3 can be inserted into the circular groove 14, so that the workers can convert the longitudinal force into the lateral force, reducing the difficulty of disassembly. At the same time, when the length of the second connecting unit 3 is not enough, multiple first connecting units 2 can be superimposed on the second connecting unit 3 until its length reaches the required length, further increasing the range of use of the disassembly device.
[0020] Example 2 like Figure 1-5 As shown, a disassembly device for coal mine machinery maintenance includes a second connecting unit 3 comprising a second gripping rod 31 partially inserted into a circular groove 14. The second gripping rod 31 is sleeved within the circular groove 14, and its length is greater than the depth of the circular groove 14. A limiting plate 32 is connected to the second gripping rod 31, wherein the limiting plate 32 is as follows: Figure 2 and Figure 3As shown, the second grip 31 is divided into two parts, and the length of the second grip 31 below the limiting plate 32 is greater than the length of the circular groove 14. The plane where the lowest point of its bottom is located is lower than the plane where the lowest point of the circular groove 14 is located, so as to avoid the phenomenon of the circular groove 14 and the second grip 31 slipping off when the second connecting unit 3 and the first connecting unit 2 are applied. In addition, the bottom length of the second grip 31 should be increased based on the depth of the circular groove 14 to ensure that it will not fall off during operation.
[0021] The limiting plate 32, the second grip 31, and the circular groove 14 are all circular in design. The diameter of the limiting plate 32 is larger than the diameter of the circular groove 14, and the diameter of the second grip 31 is smaller than the diameter of the circular groove 14. This facilitates the insertion of the second grip 31 and the circular groove 14. At the same time, the limiting plate 32 limits the circular groove 14 and the second grip 31 to prevent the second grip 31 from completely detaching from the circular groove 14.
[0022] The top of the second grip 31 is provided with a second internal threaded groove 33 for connecting the first connecting unit 2. The second internal threaded groove 33 extends through the top of the second grip 31 and is used to connect part of the first connecting unit 2.
[0023] The first connecting unit 2 includes a threaded connecting rod 22 threadedly connected in a second built-in threaded groove 33, wherein the threaded connecting rod 22 and the second built-in threaded groove 33 are threadedly connected to increase the length of the second gripping rod 31. The top of the threaded connecting rod 22 extends out of the second built-in threaded groove 33 and is connected to a first gripping rod 21, which is used to increase the length of the second gripping rod 31.
[0024] The first grip 21 has a circular design, and its diameter is the same as that of the second grip 31, making it convenient for operators to use.
[0025] The top of the first grip 21 is provided with a first built-in threaded groove 23. The diameter of the first built-in threaded groove 23 is the same as the diameter of the second built-in threaded groove 33. The first built-in threaded groove 23 can be connected to the threaded connecting rod 22 at the bottom of other first grips 21, so that multiple first connecting units 2 can be stacked. At the same time, the first connecting unit 2 and the second connecting unit 3 are detachable, so that the staff can carry them separately when using them.
[0026] The effect achieved by the entire second embodiment is that the limiting plate 32, as Figure 2 and Figure 3As shown, the second grip 31 is divided into two parts, and the length of the second grip 31 below the limiting plate 32 is greater than the length of the circular groove 14. The plane where the lowest point of its bottom is located is lower than the plane where the lowest point of the circular groove 14 is located, to prevent the circular groove 14 and the second grip 31 from slipping off when the second connecting unit 3 and the first connecting unit 2 are subjected to force. The bottom length of the second grip 31 should be increased based on the depth of the circular groove 14 to ensure that it will not fall off during operation. When the second grip 31 and the circular groove 14 are inserted, the limiting plate 32 will limit the circular groove 14 and the second grip 31 to prevent the second grip 31 from completely detaching from the circular groove 14. The threaded connecting rod 22 and the second built-in threaded groove 33 are threadedly connected to increase the length of the second grip 31. The second connecting unit 3 can be connected to the threaded connecting rod 22 at the bottom of other first grip 21, so that multiple first connecting units 2 can be stacked. At the same time, the detachable first connecting unit 2 and the second connecting unit 3 allow the operator to carry them separately during use.
[0027] Example 3 like Figure 1-5 As shown, a disassembly device for coal mining machinery maintenance includes a handle 1 with a limiting member 11 connected to the end of the handle 1 away from the circular groove 14. The limiting member 11 and the handle 1 are integrally molded. A sliding member 12 is slidably connected to the end face of the limiting member 11 away from the handle 1. The sliding member 12 has a threaded groove inside the limiting member 11, and the part connecting the limiting member 11 and the sliding member 12 has a sliding groove. A threaded rod is provided in the sliding groove to drive the sliding member 12 to slide in the sliding groove inside the limiting member 11. The threaded rod and the threaded groove inside the sliding member 12 are threadedly engaged. A control member 13 is provided inside the handle 1 to drive the sliding member 12 to slide. The surface of the threaded rod has a gear that cooperates with the control member 13. The control member 13 is rotatably connected inside the limiting member 11, and the surface of the control member 13 is threaded. Rotating the control member 13 adjusts the distance between the sliding member 12 and the handle 1, facilitating the maintenance of coal mining machinery.
[0028] The effect achieved by the entire embodiment 3 is that the rotation control component 13 adjusts the distance between the sliding component 12 and the handle 1, which facilitates the maintenance of coal mining machinery.
[0029] Working Principle: When using this disassembly device for coal mining machinery maintenance, first rotate the control component 13 to adjust the distance between the sliding component 12 and the handle 1, facilitating the maintenance of the coal mining machinery. When the lateral space of the disassembly operation space is too small, a second connecting unit 3 can be inserted into the circular groove 14, allowing the operator to convert the longitudinal force into a lateral force, reducing the difficulty of disassembly. Simultaneously, when the length of the second connecting unit 3 is insufficient, multiple first connecting units 2 can be stacked on top of the second connecting unit 3 until the required length is achieved, further increasing the range of application of the disassembly device. The limiting plate 32 will... Figure 2 and Figure 3 As shown, the second grip 31 is divided into two parts, and the length of the second grip 31 below the limiting plate 32 is greater than the length of the circular groove 14. The plane where the lowest point of its bottom is located is lower than the plane where the lowest point of the circular groove 14 is located, to prevent the circular groove 14 and the second grip 31 from slipping off when the second connecting unit 3 and the first connecting unit 2 are subjected to force. The bottom length of the second grip 31 should be increased based on the depth of the circular groove 14 to ensure that it will not fall off during operation. When the second grip 31 and the circular groove 14 are inserted, the limiting plate 32 will... 14 and the second gripping rod 31 are limited to prevent the second gripping rod 31 from completely detaching from the circular groove 14. The threaded connecting rod 22 and the second built-in threaded groove 33 are threadedly connected to increase the length of the second gripping rod 31. The second connecting unit 3 can be connected to the threaded connecting rod 22 at the bottom of other first gripping rods 21, so that multiple first connecting units 2 can be stacked. At the same time, the detachable first connecting unit 2 and second connecting unit 3 allow the workers to carry them separately during use, and finally complete the disassembly work of the coal mine machinery maintenance device.
[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A disassembly device for repairing coal mining machinery, characterized in that, include: The handle (1) has a circular groove (14) at its end. A portion of the second connecting unit (3) is inserted into the circular groove (14). A portion of the first connecting unit (2) is inserted into the second connecting unit (3). The first connecting unit (2) and the second connecting unit (3) are inserted to increase the force application length.
2. The disassembly device for coal mine machinery maintenance according to claim 1, characterized in that: The second connecting unit (3) includes a second grip (31) that is partially inserted into the circular groove (14), and a limit plate (32) is connected to the second grip (31).
3. The disassembly device for coal mine machinery maintenance according to claim 2, characterized in that: The limiting plate (32), the second grip (31) and the circular groove (14) are all circular in design. The diameter of the limiting plate (32) is larger than the diameter of the circular groove (14), and the diameter of the second grip (31) is smaller than the diameter of the circular groove (14).
4. The disassembly device for coal mine machinery maintenance according to claim 3, characterized in that: The top of the second grip (31) is provided with a second built-in threaded groove (33) for the first connecting unit (2) to connect, and the second built-in threaded groove (33) passes through the top of the second grip (31).
5. A disassembly device for coal mine machinery maintenance according to claim 4, characterized in that: The first connecting unit (2) includes a threaded connecting rod (22) threadedly connected in the second built-in threaded groove (33), the top of the threaded connecting rod (22) extending out of the second built-in threaded groove (33) and connected to a first grip (21).
6. A disassembly device for coal mine machinery maintenance according to claim 5, characterized in that: The first grip (21) is circular, and the diameter of the first grip (21) is the same as the diameter of the second grip (31).
7. A disassembly device for coal mine machinery maintenance according to claim 6, characterized in that: The top of the first grip (21) is provided with a first built-in threaded groove (23), and the diameter of the first built-in threaded groove (23) is the same as the diameter of the second built-in threaded groove (33).
8. The disassembly device for coal mine machinery maintenance according to claim 1, characterized in that: The end of the grip (1) away from the circular groove (14) is connected to a limiting member (11), and the end face of the limiting member (11) away from the grip (1) is slidably connected to a sliding member (12). A control member (13) for driving the sliding member (12) to slide is provided inside the grip (1).