Rapid overhauling device for underground sensor equipment
By using a combination of pulley assemblies and traction ropes in underground coal mines, the problems of high-altitude risks and low efficiency in sensor maintenance have been solved, achieving safe and efficient sensor maintenance.
Patent Information
- Application Number
- CN202520771199.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-22
AI Technical Summary
In coal mining operations, the maintenance of underground methane sensors is difficult, leading to frequent climbing, which increases the risk of falls from heights, prolongs maintenance time, and increases labor costs.
A combination of pulley assembly and traction rope is used to lower the sensor on the mounting frame to a suitable height for maintenance by operating the traction rope at the bottom of the tunnel, thus avoiding working at height.
It effectively avoids the risk of injury from falls from heights, shortens maintenance time, improves work efficiency, and reduces the number of maintenance personnel and labor costs.
Smart Images
Figure CN223895638U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of downhole maintenance technology, and in particular to a rapid inspection and repair device for downhole sensor equipment. Background Technology
[0002] In coal mining operations, the stable installation and timely maintenance of methane sensors at the tunneling face are crucial for ensuring safe production. Methane sensors at the tunneling face are typically placed 10-15m from the return air inlet and no more than 5m from the tunnel face, with a specific location no more than 0.3m from the roof and no less than 0.2m from the tunnel sidewall. Considering that the clear height of the tunnel at the tunneling face is generally around 3.5m, and the distance between the methane sensor and the floor is no less than 3.2m, this presents significant challenges to sensor maintenance.
[0003] Currently, maintenance personnel typically need to use scaffolding and other high-altitude equipment when inspecting sensors. However, frequent climbing up and down scaffolding not only increases the risk of falls from heights but also prolongs maintenance time and reduces work efficiency. Furthermore, working at heights usually requires at least two people, further increasing labor costs. Utility Model Content
[0004] The purpose of this invention is to provide a rapid maintenance device for downhole sensor equipment, avoiding problems such as high risk of climbing to high altitudes, low work efficiency, and high labor costs when maintaining downhole sensors.
[0005] To achieve the above objectives, this utility model provides a rapid maintenance device for downhole sensor equipment, including a pulley assembly, a mounting frame for fixing downhole sensors, and a traction rope; the pulley assembly is fixedly installed on the top of the roadway; the fixed end of the traction rope is fixed on the mounting frame, and the free end of the other end passes through the pulley assembly and extends to one side of the bottom of the roadway; a fixing member for fixing the traction rope is provided on the side wall of the roadway, and the free end of the traction rope is fixed on the fixing member.
[0006] With the above structure, by setting up pulley assemblies and traction ropes, maintenance personnel can use the traction ropes to lower the sensors on the mounting frame to a suitable height for maintenance on one side of the bottom of the tunnel, eliminating the need for climbing and thus effectively avoiding the risk of falling from heights and injuring people. It also greatly shortens maintenance time, improves work efficiency, reduces the number of maintenance personnel, and lowers labor costs.
[0007] Preferably, the pulley assembly includes a pulley frame and a pulley rotatably mounted on the pulley frame. A mounting plate is fixed to the top of the tunnel, and the pulley frame is fixedly mounted on the mounting plate. With this configuration, the pulley assembly provides guidance and support for the traction rope, ensuring that the traction rope can slide smoothly. At the same time, the pulley frame is fixed to the top of the tunnel by the mounting plate, ensuring the stability of the entire device.
[0008] Preferably, the pulley frame is further provided with a limiting device; the limiting device includes a fixed sleeve and a sliding column slidably installed in the fixed sleeve; the fixed sleeve is fixed to the pulley frame and has a central hole at its center; limiting blocks are slidably installed on the periphery of the fixed sleeve, and an ejection spring is provided between the limiting blocks and the fixed sleeve; under the action of the ejection spring, the limiting blocks are inserted into the central hole; a guide slope is provided at the bottom of the limiting block facing the central hole, and a flat surface is provided at the top of the limiting block facing the central hole; pushing the guide slope, the limiting block exits the central hole; a conical head is provided on the sliding column, and the conical head is slidably installed in the central hole; traction rope The fixed end of the device passes through the upper part of the central hole and is fixed to the top of the conical head. Under the traction of the traction rope, the conical head passes through the limiting block, and the upper plane of the limiting block abuts against the bottom of the conical head, thus supporting the conical head. An inverted conical sleeve is slidably installed on the sliding column at the bottom of the conical head. The maximum diameter of the top of the inverted conical sleeve is the same as the maximum diameter of the bottom of the conical head. When the inverted conical sleeve rises, its top fits against the bottom of the conical head. A limiting plate is provided at the bottom of the sliding column, and the diameter of the limiting plate is larger than the diameter of the central hole. When the limiting plate abuts against the bottom of the central hole, the limiting block abuts against the side wall of the inverted conical sleeve. This setting ensures that the hoisting height of the mounting frame remains consistent at all times, and also prevents the mounting frame from falling due to improper handling when attaching the traction rope.
[0009] Preferably, the side wall of the fixing sleeve is provided with a sliding hole; the sliding hole includes a limiting hole communicating with the central hole and a guide hole connecting the limiting hole and the outside of the fixing sleeve; the area of the guide hole is smaller than the area of the limiting hole, forming a limiting step between them; the limiting block includes a guide rod slidably installed in the guide hole and a wedge block fixed inside the guide rod and slidably installed in the limiting hole; a guide ramp and a plane are provided on the wedge block; an ejector spring is clamped on the limiting step and the wedge block. With this setting, the position of the limiting block can be guaranteed, avoiding limiting failure.
[0010] Preferably, the bottom of the conical head is provided with an upwardly recessed annular groove; the inverted conical sleeve is provided with an annular protrusion corresponding to the annular groove, and when the inverted conical sleeve abuts against the bottom of the conical head, the annular protrusion is engaged in the annular groove. This design further enhances the fit stability between the inverted conical sleeve and the conical head.
[0011] Preferably, multiple limiting blocks are provided, and the multiple limiting blocks are evenly arranged around the circumference of the fixing sleeve. This arrangement ensures uniform support and stable limiting of the conical head.
[0012] Preferably, a retaining ring is provided at the top of the conical head; the traction rope is fixed to the retaining ring. The retaining ring facilitates the installation and removal of the traction rope.
[0013] Preferably, a limiting plate is provided at one end of the guide rod that protrudes from the guide hole, and the diameter of the limiting plate is larger than the diameter of the guide hole.
[0014] Preferably, the bottom of the limiting plate is provided with multiple hooks, which are evenly hooked onto the top of the mounting frame via a pull rod.
[0015] After adopting the above technical solution, the beneficial effects of this utility model are:
[0016] This utility model discloses a rapid maintenance device for underground sensor equipment. It addresses the technical problem in existing technologies where frequent climbing up and down scaffolding increases the risk of falls from heights, prolongs maintenance time, and reduces work efficiency. By incorporating a pulley assembly and a traction rope, maintenance personnel can lower the sensor from the mounting frame to a suitable height for maintenance from the bottom of the tunnel using the traction rope. This eliminates the need for climbing, effectively avoiding the risk of falls from heights, significantly shortening maintenance time, improving work efficiency, reducing the number of maintenance personnel, and lowering labor costs. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of a rapid repair device for downhole sensor equipment according to this utility model;
[0018] Figure 2 yes Figure 1 Internal structure diagram;
[0019] Figure 3 This is a structural diagram showing the limiting block and the conical head supporting the structure.
[0020] Figure 4 This is a schematic diagram of the structure of the limiting block and the conical head under the extreme state of the traction rope;
[0021] Figure 5 yes Figure 4 After reaching the desired state, the traction rope is lowered, and the limiting block drives the inverted conical sleeve to rise. This is a structural diagram of the state.
[0022] In the diagram, 1. Pulley assembly, 11. Pulley frame, 12. Pulley, 13. Mounting plate, 2. Mounting bracket, 3. Traction rope, 4. Limiting device, 41. Fixing sleeve, 411. Center hole, 412. Limiting hole, 413. Guide hole, 414. Limiting disc, 42. Sliding column, 421. Conical head, 43. Limiting block, 431. Guide slope, 432. Plane, 44. Ejection spring, 45. Inverted conical sleeve, 46. Limiting plate, 461. Hook, 462. Pull rod. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings.
[0024] The orientations mentioned in this specification are based on the orientation of the rapid repair device for downhole sensor equipment of this utility model when it is working normally. They do not limit the orientation during storage and transportation, and only represent relative positional relationships, not absolute positional relationships.
[0025] Example 1:
[0026] like Figure 1 and Figure 2 As shown in the figure, a rapid maintenance device for downhole sensor equipment includes a pulley assembly 1, a mounting frame 2 for fixing downhole sensors, and a traction rope 3.
[0027] The pulley assembly 1 is fixedly installed at the top of the tunnel; the fixed end of the traction rope 3 is fixed to the mounting frame 2, and the free end of the other end passes through the pulley assembly 1 and extends to one side of the tunnel bottom. A fixing member for securing the traction rope 3 is provided on the tunnel sidewall, and the free end of the traction rope 3 is fixed to the fixing member. The fixing member can be a fixing hook fixed to the tunnel sidewall, with a height of approximately 1.2m from the floor, and the free end of the traction rope 3 can be tied to the fixing member.
[0028] By setting up pulley assembly 1 and traction rope 3, maintenance personnel can lower the sensor on the mounting frame 2 to a suitable height for maintenance on one side of the bottom of the tunnel using traction rope 3, eliminating the need for climbing and thus effectively avoiding the risk of falling from heights and causing injury. It also greatly shortens maintenance time, improves work efficiency, reduces the number of maintenance personnel, and lowers labor costs.
[0029] In this embodiment, the pulley assembly 1 adopts a fixed pulley structure. Of course, the structure of the pulley block can also be designed as needed. In this embodiment, the pulley assembly 1 includes a pulley frame 11 and a pulley 12 rotatably mounted on the pulley frame 11. A mounting plate 13 is fixedly installed on the top of the tunnel, and the pulley frame 11 is fixedly mounted on the mounting plate 13.
[0030] The pulley assembly 1 provides guidance and support for the traction rope 3, ensuring its smooth sliding. Simultaneously, the pulley frame 11 is fixed to the top of the tunnel via the mounting plate 13, ensuring the stability of the entire device. The mounting plate 13 can be secured to the tunnel top by driving anchor bolts into it and passing the bolts through the fixing holes. The pulley frame 11 is then suspended from the mounting plate 13.
[0031] Example 2:
[0032] This embodiment is a further improvement upon Embodiment 1. For example... Figures 3-5 As shown, the pulley frame 11 is also equipped with a limiting device 4, which is used to limit and fix the traction rope 3, thereby ensuring that the hoisting height of the installation frame 2 remains consistent, and at the same time preventing the installation frame 2 from falling due to improper handling when tying the traction rope 3.
[0033] The limiting device 4 includes a fixed sleeve 41 and a sliding post 42 slidably installed within the fixed sleeve 41. The fixed sleeve 41 is fixed to the pulley frame 11 and has a central hole 411. Limiting blocks 43 are slidably installed on the periphery of the fixed sleeve 41, and an ejector spring 44 is provided between the limiting blocks 43 and the fixed sleeve 41. Under the action of the ejector spring 44, the limiting blocks 43 are inserted into the central hole 411. A guide slope 431 is provided at the bottom of the limiting blocks 43 facing the central hole 411, and a flat surface 432 is provided at the top of the limiting blocks 43 facing the central hole 411. Pushing the guide slope 431, the limiting blocks 43 are disengaged from the central hole 411.
[0034] The installation method of limit block 43 is as follows:
[0035] The side wall of the fixed sleeve 41 is provided with a sliding hole; the sliding hole includes a limiting hole 412 that connects to the central hole 411 and a guide hole 413 that connects the limiting hole 412 to the outside of the fixed sleeve 41; the area of the guide hole 413 is smaller than the area of the limiting hole 412, and a limiting step is formed between the two.
[0036] The limiting block 43 includes a guide rod slidably installed in the guide hole 413 and a wedge block fixed inside the guide rod and slidably installed in the limiting hole 412; the guide ramp 431 and the plane 432 are set on the wedge block; the ejector spring 44 is clamped on the limiting step and the wedge block. A limiting disk 414 is provided at one end of the guide rod that protrudes from the guide hole 413. The diameter of the limiting disk 414 is larger than the diameter of the guide hole 413 to prevent the guide rod from coming out of the guide hole 413.
[0037] A conical head 421 is provided on the sliding column 42, and the conical head 421 is slidably installed in the central hole 411. The fixed end of the traction rope 3 passes through the upper part of the central hole 411 and is fixed to the top of the conical head 421. A fixing ring is provided on the top of the conical head 421. The traction rope 3 is fixed on the fixing ring, and the fixing ring facilitates the installation and removal of the traction rope 3. Under the traction of the traction rope 3, the conical head 421 enters the central hole 411 and abuts against the guide slope 431. With continued traction, the conical head 421 pushes the guide slope 431, and the limiting block 43 exits the central hole 411. The conical head 421 passes through the limiting block 43. Under the action of the ejection spring 44, the limiting block 43 resets and re-inserts into the central hole 411. The upper plane 432 of the limiting block 43 abuts against the bottom of the conical head 421, thereby supporting the conical head 421. In order to ensure the stability of the force between the limiting block 43 and the conical head 421, and to ensure uniform support and stable limiting of the conical head 421, multiple limiting blocks 43 are provided. The multiple limiting blocks 43 are evenly arranged around the fixed sleeve 41. In this embodiment, four are provided. In actual applications, three or other quantities can be designed as needed.
[0038] An inverted conical sleeve 45 is slidably mounted on the sliding column 42 at the bottom of the conical head 421. The maximum diameter of the top of the inverted conical sleeve 45 is the same as the maximum diameter of the bottom of the conical head 421. When the inverted conical sleeve 45 rises, its top fits against the bottom of the conical head 421. The bottom of the conical head 421 is provided with an upwardly recessed annular groove, and the inverted conical sleeve 45 is provided with an annular protrusion corresponding to the annular groove. When the inverted conical sleeve 45 abuts against the bottom of the conical head 421, the annular protrusion engages with the annular groove, further enhancing the stability of the fit between the inverted conical sleeve 45 and the conical head 421.
[0039] A limiting plate 46 is provided at the bottom of the sliding column 42. The diameter of the limiting plate 46 is larger than the diameter of the central hole 411. When the limiting plate 46 abuts against the bottom of the central hole 411, the limiting block 43 abuts against the side wall of the inverted conical sleeve 45. The mounting bracket 2 is fixed to the bottom of the limiting plate 46. Multiple hooks 461 are provided at the bottom of the limiting plate 46. The multiple hooks 461 are hooked to the top of the mounting bracket 2 by a pull rod 462 to enhance the connection stability between the mounting bracket 2 and the limiting device 4.
[0040] With the above structure, under the traction of the traction rope 3, the conical head 421 enters the central hole 411 and abuts against the guide slope 431. Continuing the traction, the conical head 421 pushes the guide slope 431, and the limiting block 43 exits the central hole 411. The conical head 421 passes through the limiting block 43. Under the action of the ejection spring 44, the limiting block 43 resets and re-inserts into the central hole 411. The upper plane 432 of the limiting block 43 abuts against the bottom of the conical head 421, thus supporting the conical head 421 (e.g., ...). Figure 3 (As shown). At this point, fixing the free end of the traction rope 3 will prevent the installation frame 2 from having different fixing heights due to the tightness of the traction rope 3, ensuring that the hoisting height remains consistent. At the same time, the limit block 43 supports the conical head 421, preventing the installation frame 2 from falling due to the accidental detachment of the traction rope 3 during the fixing process.
[0041] When maintenance is required, loosen the traction rope 3 and continue pulling the traction rope 3. The traction rope 3 will pull the sliding column 42 to continue rising. When the limiting plate 46 abuts against the bottom of the central hole 411, the limiting block 43 abuts against the side wall of the inverted conical sleeve 45 (e.g., Figure 4 As shown), when the traction rope 3 is lowered, during the downward movement of the sliding column 42, the friction between the limiting block 43 and the inverted conical sleeve 45 causes the inverted conical sleeve 45 to slide upward along the sliding column 42 until the top of the inverted conical sleeve 45 is in contact with the bottom of the conical head 421 (as shown). Figure 5(As shown); At this time, continue to release the traction rope 3, and the inverted conical sleeve 45 forces the limiting block 43 to exit the center hole 411 and gradually transition to the conical head 421, so that the conical head 421 passes through the limiting block 43 and continues to be lowered until the installation frame 2 is lowered to the bottom of the roadway, where the staff will inspect it.
[0042] Of course, the weight of the inverted conical sleeve 45 in this embodiment needs to be reasonably set to ensure that its weight is less than the force of the ejector spring 44, so as to avoid the friction between the limiting block 43 and the inverted conical sleeve 45 failing to drive the inverted conical sleeve 45 to slide upward along the sliding column 42, thus affecting the normal operation of the limiting device. The production material of the inverted conical sleeve 45 can be changed, such as using lightweight plastic material.
[0043] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.
Claims
1. A rapid maintenance device for downhole sensor equipment, characterized in that: This includes pulley assemblies, mounting brackets for securing downhole sensors, and traction ropes; The pulley assembly is fixedly installed on the top of the tunnel; The fixed end of the traction rope is fixed to the mounting frame, and the free end of the other end passes through the pulley assembly and extends to one side of the bottom of the tunnel; The tunnel sidewall is provided with a fixing member for fixing the traction rope, and the free end of the traction rope is fixed to the fixing member.
2. The rapid maintenance device for downhole sensor equipment according to claim 1, characterized in that: The pulley assembly includes a pulley frame and pulleys rotatably mounted on the pulley frame. A mounting plate is fixed to the top of the tunnel, and the pulley frame is fixedly mounted on the mounting plate.
3. The rapid maintenance device for downhole sensor equipment according to claim 2, characterized in that: The pulley frame is also equipped with a limit device; The limiting device includes a fixed sleeve and a sliding column slidably installed inside the fixed sleeve; The fixing sleeve is fixed to the pulley frame and has a central hole at its center; a limiting block is slidably installed on the periphery of the fixing sleeve, and an ejection spring is provided between the limiting block and the fixing sleeve; under the action of the ejection spring, the limiting block is inserted into the central hole; the bottom of the limiting block facing the central hole has a guide slope, and the top of the limiting block has a flat surface; by pushing the guide slope, the limiting block is removed from the central hole. The sliding column is provided with a conical head, which is slidably installed in the central hole; the fixed end of the traction rope passes through the upper part of the central hole and is fixed to the top of the conical head. Under the traction of the traction rope, after the conical head passes through the limiting block, the upper plane of the limiting block abuts against the bottom of the conical head to support the conical head. An inverted conical sleeve is slidably mounted on the sliding column at the bottom of the conical head. The maximum diameter of the top of the inverted conical sleeve is the same as the maximum diameter of the bottom of the conical head. When the inverted conical sleeve rises, its top fits against the bottom of the conical head. The bottom of the sliding column is provided with a limiting plate, the diameter of which is larger than the diameter of the central hole; when the limiting plate abuts against the bottom of the central hole, the limiting block abuts against the side wall of the inverted conical sleeve.
4. The rapid maintenance device for downhole sensor equipment according to claim 3, characterized in that: The side wall of the fixed sleeve is provided with a sliding hole; the sliding hole includes a limiting hole that connects to the central hole and a guide hole that connects the limiting hole to the outside of the fixed sleeve; the area of the guide hole is smaller than the area of the limiting hole, and a limiting step is formed between the two. The limiting block includes a guide rod slidably installed in the guide hole and a wedge block fixed inside one end of the guide rod and slidably installed in the limiting hole; the guide inclined surface and the plane are disposed on the wedge block; the ejection spring is clamped on the limiting step and the wedge block.
5. The rapid maintenance device for downhole sensor equipment according to claim 3, characterized in that: The bottom of the conical head is provided with an upwardly recessed annular groove; the inverted conical sleeve is provided with an annular protrusion corresponding to the annular groove, and when the inverted conical sleeve abuts against the bottom of the conical head, the annular protrusion is engaged in the annular groove.
6. The rapid maintenance device for downhole sensor equipment according to claim 3, characterized in that: Multiple limiting blocks are provided, and the multiple limiting blocks are evenly arranged around the circumference of the fixing sleeve.
7. A rapid maintenance device for downhole sensor equipment according to claim 3, characterized in that: The top of the conical head is provided with a fixing ring; the traction rope is fixed to the fixing ring.
8. A rapid maintenance device for downhole sensor equipment according to claim 4, characterized in that: A limiting plate is provided at one end of the guide rod that protrudes from the guide hole, and the diameter of the limiting plate is larger than the diameter of the guide hole.
9. A rapid maintenance device for downhole sensor equipment according to claim 3, characterized in that: The bottom of the limiting plate is provided with multiple hooks, which are evenly hooked to the top of the mounting frame by a pull rod.