Explosion-proof and intrinsically safe controller for mine
By adjusting the design of the fixing components and wiring components, the problems of insufficient size adaptability and wire tangling in existing mine explosion-proof and intrinsically safe controllers have been solved. This has enabled flexible adjustment and fixing of the controller, good heat dissipation and wiring tidying, and improved the operational stability and maintenance convenience of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXIANG ZHENYUAN ELECTRIC CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-21
AI Technical Summary
Existing explosion-proof and intrinsically safe controllers for mining have fixed installation structures that result in insufficient size adaptability, cumbersome disassembly and maintenance, messy wiring, and low heat dissipation efficiency, which affect the stability of equipment operation and ease of maintenance.
The system employs an adjustable fixing assembly and a wiring assembly, including an adjustable motor-driven bidirectional threaded rod, an adjusting frame with meshing active and driven bevel gears, a heat dissipation grille, a clamp, and a spring-adaptive clamping mechanism. Combined with a wiring frame, junction box, and cable outlet pipe, it enables flexible adjustment, fixing, heat dissipation, and wiring organization of the controller.
It improves the versatility and applicability of the controller, ensures reliable mounting and good heat dissipation, avoids messy wiring, and enhances equipment safety and ease of maintenance.
Smart Images
Figure CN224538563U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of controller technology, and in particular to a mine explosion-proof and intrinsically safe controller. Background Technology
[0002] With the development of intelligent coal mines, underground ventilation, transportation, mining and other systems need to be automatically monitored through controllers. Explosion-proof and intrinsically safe controllers for mining are the core equipment for achieving automated control in explosive hazardous environments such as coal mines.
[0003] A search revealed Chinese Patent Publication No. CN218183699U, which discloses a mine-use explosion-proof and intrinsically safe controller. This invention addresses the problems of existing mine-use explosion-proof and intrinsically safe controllers, such as limited functionality, difficulty in quick disassembly and maintenance leading to increased workload, poor heat dissipation, and low efficiency. The proposed solution includes a protective box with the controller body mounted on its bottom inner wall. A horizontally positioned positioning plate is slidably connected inside the protective box. A rubber pad is located on the bottom side of the positioning plate, contacting the top side of the controller body. Two symmetrically arranged sliding rods are fixedly welded to the bottom side of the positioning plate. This invention features a reasonable structural design, simple operation, and facilitates quick disassembly and installation of the controller, reducing the workload of workers. It also has excellent heat dissipation and good performance, making it worthy of widespread use.
[0004] The aforementioned explosion-proof and intrinsically safe controller for mining, while achieving basic installation and wiring connections, employs a fixed-specification installation structure and lacks wiring management. This can easily lead to insufficient controller size adaptability, cumbersome disassembly and maintenance, tangled wiring, and low heat dissipation efficiency, thereby affecting equipment operational stability and maintenance convenience, making it inconvenient to use. Therefore, a new explosion-proof and intrinsically safe controller for mining is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a mine explosion-proof and intrinsically safe controller, which aims to solve the problems in the existing technology where fixed-specification installation structure and lack of wiring management easily lead to insufficient controller size adaptability, cumbersome disassembly and maintenance, messy wiring and low heat dissipation efficiency, thereby affecting the stability of equipment operation and the convenience of maintenance.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mine explosion-proof and intrinsically safe controller, including a protective box, a door hinged to the surface of the protective box, heat dissipation components on both sides of the protective box, and an adjustment and fixing component inside the protective box; The adjustment and fixing assembly includes a mounting base and a bidirectional threaded rod. The bottom end of the mounting base is fixedly connected to the bottom end of the inner wall of the protective box. The end of the bidirectional threaded rod is rotatably connected to the inner wall of the protective box. An adjustment motor is fixedly connected to the surface of the mounting base. A rotating shaft is fixedly connected to the output end of the adjustment motor. A driving bevel gear is fixedly connected to the rear end of the rotating shaft. A driven bevel gear is fixedly connected to the outer periphery of the bidirectional threaded rod. A first adjustment frame and a second adjustment frame are sequentially threaded to the outer side of the bidirectional threaded rod. An adjustment guide groove is provided on the upper surface of the first adjustment frame. A controller body is provided between the first adjustment frame and the second adjustment frame. A wiring assembly is provided between the back of the first adjustment frame and the second adjustment frame and the outer surface of the protective box.
[0007] As a further description of the above technical solution: The driving bevel gear and the driven bevel gear are meshed together.
[0008] As a further description of the above technical solution: Both the first and second adjustment frames have heat dissipation grilles fixedly connected to their surfaces.
[0009] As a further description of the above technical solution: Two adjustment guide grooves are provided, and the two adjustment guide grooves are mirror images of each other along the central axis of the first adjustment frame. A guide rod is fixedly connected inside the two adjustment guide grooves. A clamp is sleeved and connected to the outer periphery of the guide rod near the controller body. A spring is sleeved and connected to the outer side of the guide rod.
[0010] As a further description of the above technical solution: The heat dissipation assembly includes a heat dissipation window and a connecting seat. The heat dissipation window is opened on the outer surface of both sides of the protective box. The bottom of the inner wall of the heat dissipation window is provided with an insertion groove. A ventilation mesh plate is movably snapped onto the inner side of the heat dissipation window. A lock hole plate is fixedly connected to the outer surface of the ventilation mesh plate. An insert is fixedly connected to the lower surface of the ventilation mesh plate, wherein the outer wall of the insert is adapted to the inner wall size of the insertion groove.
[0011] As a further description of the above technical solution: The connecting seat is fixedly connected to the outer surface of the protective box. There are two connecting seats, which are mirror images of each other along the central axis of the heat dissipation window. The inner sides of the two connecting seats are fixedly connected to a first telescopic pin, and the outer wall of the telescopic end of the first telescopic pin is adapted to the inner wall size of the lock hole plate.
[0012] As a further description of the above technical solution: The cable assembly includes two cable trays, two junction boxes, and a mounting base. The outer wall of one cable tray is fixedly connected to the back of the first adjusting frame, and the outer wall of the other cable tray is fixedly connected to the back of the second adjusting frame. The outer walls of the two junction boxes are respectively fixedly connected to the upper and lower surfaces of the protective box. The outer wall of the mounting base is fixedly connected to the outer surface of the protective box, and a second telescopic latch is fixedly connected to the inner side of the mounting base.
[0013] As a further description of the above technical solution: The front of the junction box is rotatably connected to a flip cover, and the flip cover has locking holes on both sides. The two sides of the junction box are fixedly connected to cable outlet pipes, and the outer wall of the telescopic end of the second telescopic locking pin is adapted to the inner wall size of the locking hole.
[0014] This utility model has the following beneficial effects: 1. In this utility model, by adjusting the fixing group, the first adjusting frame and the second adjusting frame are driven and adjusted by the bidirectional threaded rod and the adjusting motor to realize the adjustment and fixing of the controller body of different sizes, thereby improving the versatility and applicability. The clamp and spring self-adaptive clamping, the guide rod ensures stability, the heat dissipation grid assists in heat dissipation, and the spring buffers vibration, ensuring reliable fixing, good heat dissipation and vibration resistance.
[0015] 2. In this utility model, a cable management assembly is used. The cable management frame, junction box, and mounting base are employed to organize, store, and protect the controller's connecting cables, preventing cable clutter. The junction box protects the connectors, and the flip cover and second telescopic latch work together to secure the cable. The cable outlet guides the wiring, improving equipment safety and reliability and facilitating cable inspection and maintenance. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of a mine explosion-proof and intrinsically safe controller proposed in this utility model; Figure 2 This is a schematic diagram of the opening structure of the door of a mine explosion-proof and intrinsically safe controller proposed in this utility model. Figure 3 This is a schematic diagram of the overall cross-sectional internal structure of a mine explosion-proof and intrinsically safe controller proposed in this utility model. Figure 4 This is a partial structural diagram of the heat dissipation component and wiring component of a mine explosion-proof and intrinsically safe controller proposed in this utility model.
[0017] Legend: 1. Protective box; 2. Box door; 3. Heat dissipation assembly; 31. Heat dissipation window; 32. Insertion slot; 33. Connecting seat; 34. First telescopic latch; 35. Ventilation mesh plate; 36. Lock hole plate; 4. Adjustment and fixing assembly; 41. Mounting seat; 42. Bidirectional threaded rod; 43. Adjustment motor; 44. Rotating shaft; 45. Driving bevel gear; 46. Driven bevel gear; 47. First adjustment frame; 48. Second adjustment frame; 49. Heat dissipation grille; 410. Adjustment guide groove; 411. Guide rod; 412. Clamp; 413. Spring; 5. Controller body; 6. Cable assembly; 61. Cable tray; 62. Junction box; 63. Flip cover; 64. Locking hole; 65. Outlet pipe; 66. Fixing seat; 67. Second telescopic latch. Detailed Implementation
[0018] 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.
[0019] Reference Figures 1-3 The present invention provides an embodiment of a mine-use explosion-proof and intrinsically safe controller, comprising a protective box 1, a door 2 hinged to the surface of the protective box 1, the door 2 being hinged to the protective box 1 for easy opening and closing, so as to realize the installation, maintenance and repair of the controller body 5 and other components inside the protective box 1. Heat dissipation components 3 are provided on both sides of the protective box 1. The heat dissipation components 3 are provided to ensure that the heat inside the protective box 1 can be dissipated in time, so as to avoid the normal operation of the controller body 5 and other components due to excessive temperature, and to ensure the stability and reliability of the equipment in the complex mining environment. Furthermore, the heat dissipation component 3 includes a heat dissipation window 31 and a connecting seat 33. The heat dissipation window 31 is opened on the outer surface of both sides of the protective box 1. The opening of the heat dissipation window 31 increases the heat exchange area between the inside of the protective box 1 and the outside, which is conducive to air circulation and heat removal. The bottom of the inner wall of the heat dissipation window 31 is provided with an insertion groove 32. The insertion groove 32 provides an installation positioning structure for the ventilation mesh plate 35, ensuring the accuracy and stability of the installation of the ventilation mesh plate 35. The ventilation mesh plate 35 is movably snapped onto the inner side of the heat dissipation window 31. The ventilation mesh plate 35 can prevent external debris such as mineral dust and gravel from entering the interior of the protective box 1, while not affecting the air circulation, playing a dual role of protection and ventilation. The outer surface of the ventilation mesh plate 35 is fixedly connected with a locking plate 36. The locking plate 36 cooperates with the first telescopic latch 34 to fix the ventilation mesh plate 35 and prevent it from loosening and falling off during use. The lower surface of the ventilation mesh plate 35 is fixedly connected with The insert has an outer wall that matches the inner wall of the insertion slot 32. This size matching allows the ventilation mesh 35 to be accurately inserted into the insertion slot 32, laying the foundation for subsequent fixing operations. The connecting seat 33 is fixedly connected to the outer surface of the protective box 1. There are two connecting seats 33, which are mirror images of each other along the central axis of the heat dissipation window 31. The two connecting seats 33 are symmetrically arranged to ensure that the first telescopic locking pin 34 is evenly stressed and has a better fixing effect. The inner side of the two connecting seats 33 is fixedly connected to the first telescopic locking pin 34. The first telescopic locking pin 34 is telescopic. When the ventilation mesh 35 is installed in place, it extends and engages with the locking hole plate 36 to firmly fix the ventilation mesh 35 to the inside of the heat dissipation window 31. The outer wall of the telescopic end of the first telescopic locking pin 34 matches the inner wall of the locking hole plate 36. The matching size ensures that the first telescopic locking pin 34 can be smoothly engaged with the locking hole plate 36 to achieve stable fixing.
[0020] Reference Figures 2-4The protective box 1 is equipped with an adjustment and fixing assembly 4. This assembly is used to adjust and fix controller bodies 5 of different sizes, improving the controller's versatility and applicability. It can flexibly adapt to the installation requirements of various controller specifications. The adjustment and fixing assembly 4 includes a mounting base 41 and a bidirectional threaded rod 42. The bottom end of the mounting base 41 is fixedly connected to the bottom end of the inner wall of the protective box 1. The end of the bidirectional threaded rod 42 is rotatably connected to the inner wall of the protective box 1, allowing it to rotate within the protective box 1. This provides a power source and movement track for the movement of the first adjustment frame 47 and the second adjustment frame 48. An adjustment motor 43 is fixedly connected to the surface of the mounting base 41. The adjustment motor 43 provides power for the rotation of the bidirectional threaded rod 42. By controlling the start, stop, and direction of the adjustment motor 43, the positions of the first adjustment frame 47 and the second adjustment frame 48 can be adjusted. The output end of the adjustment motor 43 is fixedly connected to a rotary... The rotating shaft 44 transmits the power of the regulating motor 43 to the driving bevel gear 45, realizing the effective transmission of power. The driving bevel gear 45 is fixedly connected to the rear end of the rotating shaft 44. The driven bevel gear 46 is fixedly connected to the outer periphery of the bidirectional threaded rod 42. The driving bevel gear 45 and the driven bevel gear 46 are meshed. The meshing of the driving bevel gear 45 and the driven bevel gear 46 transmits the rotational motion of the rotating shaft 44 to the bidirectional threaded rod 42, changing the direction of power transmission. The driven bevel gear 46 cooperates with the driving bevel gear 45, so that the bidirectional threaded rod 42 can rotate under the drive of the regulating motor 43. The outer side of the bidirectional threaded rod 42 is sequentially threaded with a first adjusting frame 47 and a second adjusting frame 48. Under the rotation of the bidirectional threaded rod 42, the first adjusting frame 47 and the second adjusting frame 48 can move towards or away from each other along the bidirectional threaded rod 42, thereby realizing the clamping or loosening adjustment of the controller body 5. Furthermore, heat dissipation grilles 49 are fixedly connected to the surfaces of both the first adjusting frame 47 and the second adjusting frame 48. The heat dissipation grilles 49 further increase the heat dissipation area, and the auxiliary heat dissipation component 3 dissipates heat from the controller body 5, ensuring that its operating temperature is within the normal range. An adjusting guide groove 410 is provided on the upper surface of the first adjusting frame 47. The adjusting guide groove 410 provides guidance for the movement of the clamp 412, ensuring that the clamp 412 can accurately clamp and adjust the controller body 5. The controller body 5 is located between the first adjusting frame 47 and the second adjusting frame 48. Two adjusting guide grooves 410 are provided, and the two adjusting guide grooves 410 are mirror images of each other along the central axis of the first adjusting frame 47. The two symmetrically arranged adjusting guide grooves 410 make the clamp 412 evenly stressed. The clamping of the controller body 5 is more stable and reliable. The two adjusting guide grooves 410 are fixedly connected to the guide rods 411. The guide rods 411 further enhance the guiding effect on the clamp 412, ensuring its linearity and stability of movement. The clamp 412 is sleeved and connected to the outer periphery of the guide rod 411 near the controller body 5. Under the action of the spring 413, the clamp 412 can adaptively clamp the controller body 5 of different sizes, improving the flexibility and applicability of the fixation. The guide rod 411 is sleeved and connected to the outer side of the spring 413. The spring 413 provides elastic force to the clamp 412, so that it can fit tightly against the controller body 5, ensuring the fixation effect, and at the same time buffering the influence of external vibration on the controller body 5 to a certain extent.
[0021] Reference Figure 1 , Figure 3 and Figure 4A cable management assembly 6 is provided between the back of the first adjusting frame 47 and the second adjusting frame 48 and the outer surface of the protective box 1. The cable management assembly 6 is used to organize, store, and protect the connecting wires of the controller body 5, avoiding wire tangling, improving the safety and reliability of the equipment, and facilitating wire inspection and maintenance. The cable management assembly 6 includes two cable management frames 61, two junction boxes 62, and a fixing base 66. The outer wall of one cable management frame 61 is fixedly connected to the back of the first adjusting frame 47, and the outer wall of the other cable management frame 61 is fixedly connected to the back of the second adjusting frame 48. The cable management frame 61 is used to guide and support the connecting wires, so that the connecting wires can be arranged in an orderly manner and avoid mutual tangling and compression. The outer walls of the two junction boxes 62 are respectively fixedly connected to the upper and lower surfaces of the protective box 1. The junction boxes 62 are used to store and protect the connectors of the connecting wires, preventing the connectors from becoming loose, damp, or damaged by external factors, and ensuring the stability and safety of the wire connection. The outer wall of the fixing base 66 is fixedly connected to the protective box 1. On the outer surface of the junction box 62, the mounting base 66 provides an installation foundation for the second telescopic latch 67, ensuring its secure installation. The second telescopic latch 67 is fixedly connected to the inner side of the mounting base 66. The second telescopic latch 67 is telescopic and is used to fix the flip cover 63, preventing it from being accidentally opened during use and protecting the wiring connectors inside the junction box 62. The front of the junction box 62 is rotatably connected to the flip cover 63, which can be opened and closed to facilitate the connection, inspection, and maintenance of the wiring connectors inside the junction box 62. The flip cover 63 has locking holes 64 on both sides. The outer wall of the telescopic end of the second telescopic latch 67 is adapted to the inner wall size of the locking hole 64. The locking hole 64 cooperates with the second telescopic latch 67 to fix the flip cover 63, ensuring the sealing and protection of the junction box 62. The wiring tubes 65 are fixedly connected to both sides of the junction box 62. The wiring tubes 65 are used to guide the connecting wires into and out of the junction box 62, protecting and organizing the wiring, while preventing external debris from entering the junction box 62.
[0022] Working principle: In use, the hinge structure of the door 2 makes it easy for the staff to open the protective box 1 and complete the installation of the controller body 5 and other components. After installation, the door 2 is closed to form a closed protective space. The heat dissipation components 3 on both sides of the protective box 1 begin to play their role. The heat dissipation window 31 increases the heat exchange area. The ventilation mesh plate 35 is firmly installed with the cooperation of the insertion slot 32 and the first telescopic pin 34, which not only ensures air circulation to remove internal heat, but also prevents mineral dust and other debris from entering. When different sizes of controller bodies 5 need to be installed, the adjusting and fixing assembly 4 is activated, and the adjusting motor 43 drives the rotating shaft 44. Through the meshing of the active bevel gear 45 and the driven bevel gear 46, the bidirectional threaded rod 42 rotates, thereby driving the first adjusting frame 47 and the second adjusting frame 48 to move towards or away from each other, and initially adjust the position. At the same time, under the elastic force of the spring 413, the clamp 412 moves along the guide rod 411 in the adjusting guide groove 410, adaptively clamping the controller body 5. In addition, the heat dissipation grille 49 assists the heat dissipation assembly 3 to further ensure that the controller body 5 operates at a suitable temperature. During controller operation, the wiring assembly 6 manages the connecting wires, the wiring rack 61 guides the connecting wires to be arranged in an orderly manner, the junction box 62 stores and protects the wire connectors, the flip cover 63 is kept closed by the cooperation of the second telescopic latch 67 and the latch hole 64 to ensure the sealing of the junction box 62, and the outlet pipe 65 regulates the entry and exit of the connecting wires to prevent the wiring from becoming messy and the intrusion of external debris, ensuring that the entire controller system operates stably, safely and reliably in the complex mining environment.
[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 mine-use explosion-proof and intrinsically safe controller, comprising a protective box (1), characterized in that: The protective box (1) is hinged to a door (2) on its surface. Heat dissipation components (3) are provided on both sides of the protective box (1). Adjustment and fixing components (4) are provided inside the protective box (1). The adjustment and fixing assembly (4) includes a mounting base (41) and a bidirectional threaded rod (42). The bottom end of the mounting base (41) is fixedly connected to the bottom end of the inner wall of the protective box (1). The end of the bidirectional threaded rod (42) is rotatably connected to the inner wall of the protective box (1). An adjustment motor (43) is fixedly connected to the surface of the mounting base (41). A rotating shaft (44) is fixedly connected to the output end of the adjustment motor (43). A driving bevel gear (45) is fixedly connected to the rear end of the rotating shaft (44). A driven bevel gear (46) is fixedly connected to the outer periphery of the bidirectional threaded rod (42). A first adjustment frame (47) and a second adjustment frame (48) are sequentially threaded to the outer side of the bidirectional threaded rod (42). An adjustment guide groove (410) is provided on the upper surface of the first adjustment frame (47). A controller body (5) is provided between the first adjustment frame (47) and the second adjustment frame (48). A wiring assembly (6) is provided between the back of the first adjustment frame (47) and the second adjustment frame (48) and the outer surface of the protective box (1).
2. The explosion-proof and intrinsically safe controller for mining as described in claim 1, characterized in that: The driving bevel gear (45) and the driven bevel gear (46) are meshed together.
3. A mine-use explosion-proof and intrinsically safe controller according to claim 1, characterized in that: The surfaces of the first adjustment frame (47) and the second adjustment frame (48) are both fixedly connected with heat dissipation grilles (49).
4. A mine-use explosion-proof and intrinsically safe controller according to claim 1, characterized in that: Two adjustment guide grooves (410) are provided. The two adjustment guide grooves (410) are mirrored along the central axis of the first adjustment frame (47). A guide rod (411) is fixedly connected inside the two adjustment guide grooves (410). A clamp (412) is sleeved on the outer periphery of the guide rod (411) near the controller body (5). A spring (413) is sleeved on the outer side of the guide rod (411).
5. A mine-use explosion-proof and intrinsically safe controller according to claim 1, characterized in that: The heat dissipation assembly (3) includes a heat dissipation window (31) and a connecting seat (33). The heat dissipation window (31) is opened on the outer surface of both sides of the protective box (1). The bottom of the inner wall of the heat dissipation window (31) is provided with an insertion groove (32). A ventilation mesh plate (35) is movably snapped onto the inner side of the heat dissipation window (31). A lock hole plate (36) is fixedly connected to the outer surface of the ventilation mesh plate (35). An insert is fixedly connected to the lower surface of the ventilation mesh plate (35), wherein the outer wall of the insert is adapted to the inner wall size of the insertion groove (32).
6. A mine-use explosion-proof and intrinsically safe controller according to claim 5, characterized in that: The connecting seat (33) is fixedly connected to the outer surface of the protective box (1). There are two connecting seats (33). The two connecting seats (33) are mirrored along the central axis of the heat dissipation window (31). The inner side of the two connecting seats (33) is fixedly connected to a first telescopic pin (34). The outer wall of the telescopic end of the first telescopic pin (34) is adapted to the inner wall size of the lock hole plate (36).
7. A mine-use explosion-proof and intrinsically safe controller according to claim 1, characterized in that: The cable assembly (6) includes two cable trays (61), two junction boxes (62), and a mounting base (66). The outer wall of one of the cable trays (61) is fixedly connected to the back of the first adjusting frame (47), and the outer wall of the other cable tray (61) is fixedly connected to the back of the second adjusting frame (48). The outer walls of the two junction boxes (62) are respectively fixedly connected to the upper and lower surfaces of the protective box (1). The outer wall of the mounting base (66) is fixedly connected to the outer surface of the protective box (1), and a second telescopic latch (67) is fixedly connected to the inner side of the mounting base (66).
8. A mine-use explosion-proof and intrinsically safe controller according to claim 7, characterized in that: The front of the junction box (62) is rotatably connected to a flip cover (63), and the flip cover (63) has a locking hole (64) on both sides. The junction box (62) is fixedly connected to a cable outlet pipe (65) on both sides. The outer wall of the telescopic end of the second telescopic locking pin (67) is adapted to the inner wall size of the locking hole (64).