A coal mine electromechanical equipment wiring connecting device

Abstract

The utility model relates to the technical field of coal mine electromechanical, provide a kind of coal mine electromechanical equipment wiring connection device, including sleeve (1) and the inner tube (2) sliding in sleeve (1), the end of sleeve (1) and inner tube (2) are mutually away from and are fixedly connected with rubber ring (3), the inner wall of rubber ring (3) is fixedly connected with first sealing ring (4), rubber ring (3) and first sealing ring (4) are made of plasticity rubber, the inner diameter of first sealing ring (4) and inner tube (2) is same and the inner diameter of both is greater than the outer diameter of wire (5), the circumferential side wall of rubber ring (3) is equipped with tightening ring groove (6), steel wire rope (7) is wound in tightening ring groove (6), the utility model can improve installation efficiency when connecting wire.

Description

Technical Field

[0001] This utility model relates to the field of coal mine electromechanical technology, and more specifically, to a wiring connection device for coal mine electromechanical equipment. Background Technology

[0002] Coal mine electromechanical equipment refers to the mechanical and electrical equipment used in coal mine production and operation. They are the foundation of coal mine production and cover multiple aspects such as mining, transportation, ventilation, drainage, power supply, and safety monitoring. These include mining equipment, crushing and grinding equipment, screening equipment, washing and beneficiation equipment, electrical equipment, and intelligent equipment. These electromechanical equipment not only play an important role in the mining and transportation process of coal mines, but also involve issues related to the production safety and efficiency of coal mines.

[0003] Patent document CN218867904U discloses a wiring connection device for coal mine electromechanical equipment, including a first connecting cylinder and a second connecting cylinder. Both the left and right ends of the first and second connecting cylinders have wire-passing holes, and sealing devices are fixedly installed on the outside of each wire-passing hole. Mounting holes are also provided at the middle of the upper end of both the first and second connecting cylinders, with bolts installed in each mounting hole and wires installed in each wire-passing hole. The wires are connected by being wrapped with insulating adhesive. Mounting plates are fixedly installed on the lower inner walls of both the first and second connecting cylinders, with mounting posts fixedly installed on the upper ends of each mounting plate. Fixing devices are fixedly installed on the upper ends of each mounting post. Slots are provided at the upper and lower parts of the right end of the first connecting cylinder. This utility model's wiring connection device for coal mine electromechanical equipment is not easily disconnected after connection and has good sealing performance, preventing dust from entering and causing explosions.

[0004] In the existing technology, the connecting device seals the connecting cylinder by attaching a sealing plug to the wire. After the wire is inserted into the sealing plug, the two connecting cylinders need to be moved closer to each other. Because the sealing plug is attached to the wire, the sliding connecting cylinder is affected by friction and is difficult to slide, which affects the installation efficiency. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a wiring connection device for coal mine electromechanical equipment, which can improve the installation efficiency when connecting wires.

[0006] A wiring connection device for coal mine electromechanical equipment includes a sleeve and an inner tube sliding within the sleeve. A rubber ring is fixedly connected to one end of both the sleeve and the inner tube, which are far apart from each other. A first sealing ring is fixedly connected to the inner wall of the rubber ring. Both the rubber ring and the first sealing ring are made of malleable rubber. The inner diameter of the first sealing ring and the inner tube are the same, and both inner diameters are larger than the outer diameter of the wire. A tightening groove is formed on the circumferential side wall of the rubber ring, and a steel wire rope is wound inside the tightening groove.

[0007] Furthermore, the two ends of the wire rope are fixed and tightened by wire rope clamps.

[0008] Furthermore, insulating tape is wrapped around the connection point of the two wires.

[0009] Furthermore, the thickness of the insulating tape is 0.15 mm.

[0010] Furthermore, the insulating tape is wrapped three times.

[0011] Furthermore, the inner diameter of the first sealing ring and the inner tube is 8 mm larger than the outer diameter of the wire.

[0012] Furthermore, a second sealing ring is fixed to the inner wall of the sleeve.

[0013] Furthermore, the sleeve has a threaded groove, and a threaded ring is fixed to the circumferential wall of one end of the inner tube located inside the sleeve.

[0014] Furthermore, the external thread on the threaded ring is adapted to the internal thread of the threaded groove, and the threaded ring is screwed into the threaded groove.

[0015] Furthermore, the second sealing ring is made of rubber.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the two ends of the wire rope are fixed and tightened by wire rope clamps, which tightens the rubber ring and makes the inner wall of the first sealing ring close to and in contact with the wire. This reduces the probability of dust entering the casing and inner tube in the coal mine, protects the connection of the two wires, and makes the connecting device difficult to move under the action of the friction between the first sealing ring and the wire, ensuring that the connection of the two wires is always located inside the casing and inner tube. Furthermore, since the inner diameter of the first sealing ring and the inner tube is the same and their inner diameter is slightly larger than the outer diameter of the wire, the sliding installation of the casing and inner tube is smoother, improving the installation efficiency when connecting the two wires. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of a wiring connection device for coal mine electromechanical equipment.

[0020] Figure 2 This is a cross-sectional view of a wiring connection device for electromechanical equipment in a coal mine.

[0021] Figure 3 This is a partial structural diagram of a wiring connection device for coal mine electromechanical equipment.

[0022] In the diagram: 1. Sleeve; 2. Inner tube; 3. Rubber ring; 4. First sealing ring; 5. Wire; 6. Tightening ring groove; 7. Steel wire rope; 8. Steel wire rope clamp; 9. Insulating tape; 10. Second sealing ring; 11. Threaded groove; 12. Threaded ring. Detailed Implementation

[0023] 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. Specific implementation examples:

[0025] like Figure 1-3 As shown, a wiring connection device for coal mine electromechanical equipment includes a sleeve 1, an inner tube 2 sliding inside the sleeve 1, and rubber rings 3 fixedly connected to the ends of the sleeve 1 and the inner tube 2 that are far apart from each other. A first sealing ring 4 is fixedly connected to the inner wall of the rubber ring 3. Both the rubber ring 3 and the first sealing ring 4 are made of malleable rubber. The inner diameter of the first sealing ring 4 and the inner tube 2 are the same, and their inner diameters are slightly larger than the outer diameter of the wire 5. A tightening groove 6 is formed on the peripheral wall of the rubber ring 3. A steel wire rope 7 is wound in the tightening groove 6. The two ends of the steel wire rope 7 are fixed and tightened by steel wire rope clamps 8. The rubber ring 3 is tightened, bringing the inner wall of the first sealing ring 4 close to and fitting against the wire 5, reducing the probability of coal mine dust entering the casing 1 and inner tube 2, protecting the connection of the two wires 5, and under the action of the friction between the first sealing ring 4 and the wire 5, the connecting device is not easy to move, ensuring that the connection of the two wires 5 is always located inside the casing 1 and inner tube 2. Furthermore, since the inner diameters of the first sealing ring 4 and the inner tube 2 are the same and their inner diameters are slightly larger than the outer diameter of the wire 5, the sliding installation of the casing 1 and the inner tube 2 is smoother, improving the installation efficiency when connecting the two wires 5.

[0026] like Figure 1-3 As shown, insulating tape 9 is wrapped around the connection point of the two conductors 5. In general electrical installation specifications, insulating tape is usually wrapped three to five times. In this embodiment, it is wrapped three times. The thickness of the insulating tape 9 is 0.15mm, similar to electrical black tape. The inner diameter of the first sealing ring 4 and the inner tube 2 is 8mm larger than the outer diameter of the conductors 5. Thus, when connecting the two conductors 5, one conductor 5 is first inserted into the sleeve 1 and the inner tube 2 from one side, and then exposed from one side of the inner tube 2. The two conductors 5 are then connected by the insulating tape 9. The insulating tape 9 further improves the sealing performance at the connection point of the two conductors 5. The inner diameter of the inner tube 2 is 8mm larger than the outer diameter of the conductor 5. The insulating tape 9, after being wrapped three times, can still pass through and enter the sleeve 1 and the inner tube 2. The inner tube 2 is slid to make the total length of the sleeve 1 and the inner tube 2 longer, and the connection of the two conductors 5 is placed in the sleeve 1 and the inner tube 2 to protect the connection. Then, by tightening the ring groove 6, the wire rope 7, and the wire rope clamp 8 in conjunction with tightening the rubber ring 3 and the first sealing ring 4, the first sealing ring 4 is deformed and approaches the side wall of the conductor 5. Although it cannot be completely fitted, it can reduce the probability of coal mine dust entering the sleeve 1 and the inner tube 2, thereby completing the installation of the connection device.

[0027] like Figure 1-3 As shown, a second sealing ring 10 is fixedly connected to the inner wall of the sleeve 1. The second sealing ring 10 is made of rubber. The second sealing ring 10 is provided to improve the sealing performance at the connection between the sleeve 1 and the inner tube 2.

[0028] like Figure 1-3 As shown, a threaded groove 11 is provided inside the sleeve 1. A threaded ring 12 is fixedly connected to the peripheral wall of one end of the inner tube 2 located inside the sleeve 1. The external thread on the threaded ring 12 is adapted to the internal thread of the threaded groove 11. The threaded ring 12 is threadedly connected to the threaded groove 11. This allows the relative rotation between the sleeve 1 and the inner tube 2 to be adjusted, thereby adjusting the total length of the sleeve 1 and the inner tube 2. Through the threaded engagement, after the connection device is installed, the total length between the sleeve 1 and the inner tube 2 is not easily changed (except by manual rotation), improving the installation stability of the connection device and thus enhancing the protection effect at the connection of the two conductors 5.

[0029] The working principle of the wiring connection device for coal mine electromechanical equipment in this embodiment is as follows: When connecting two wires 5, one side of the wire 5 is first inserted into the sleeve 1 and the inner tube 2 from one side of the sleeve 1, and then exposed from one side of the inner tube 2. The two wires 5 are connected by insulating tape 9, so that the sleeve 1 and the inner tube 2 rotate relative to each other, and the total length of the sleeve 1 and the inner tube 2 becomes longer. This allows the connection of the two wires 5 to be placed inside the sleeve 1 and the inner tube 2, protecting the connection point. Then, by tightening the ring groove 6, the wire rope 7, and the wire rope clamp 8, the rubber ring 3 and the first sealing ring 4 are tightened, causing the first sealing ring 4 to deform and come close to the side wall of the wire 5. This reduces the probability of coal mine dust entering the sleeve 1 and the inner tube 2. Since the inner diameter of the first sealing ring 4 and the inner tube 2 are the same and the inner diameter of both is slightly larger than the outer diameter of the wire 5, the sliding installation of the sleeve 1 and the inner tube 2 is smoother, improving the installation efficiency when connecting the two wires 5, thereby completing the installation of the connection device.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A wiring connection device for coal mine electromechanical equipment, characterized in that: The device includes a sleeve (1) and an inner tube (2) that slides within the sleeve (1). A rubber ring (3) is fixedly connected to one end of the sleeve (1) and the inner tube (2) that are far apart from each other. A first sealing ring (4) is fixedly connected to the inner wall of the rubber ring (3). Both the rubber ring (3) and the first sealing ring (4) are made of plastic rubber. The inner diameters of the first sealing ring (4) and the inner tube (2) are the same and both are larger than the outer diameter of the wire (5). A tightening groove (6) is provided on the circumferential side wall of the rubber ring (3). A steel wire rope (7) is wound in the tightening groove (6).

2. The wiring connection device for coal mine electromechanical equipment according to claim 1, characterized in that: The two ends of the wire rope (7) are fixed and tightened by wire rope clamps (8).

3. The wiring connection device for coal mine electromechanical equipment according to claim 1, characterized in that: Insulating tape (9) is wrapped around the connection point of the two wires (5).

4. The wiring connection device for coal mine electromechanical equipment according to claim 3, characterized in that: The thickness of the insulating tape (9) is 0.15 mm.

5. The wiring connection device for coal mine electromechanical equipment according to claim 4, characterized in that: The insulating tape (9) is wrapped in three turns.

6. The wiring connection device for coal mine electromechanical equipment according to claim 5, characterized in that: The inner diameter of the first sealing ring (4) and the inner tube (2) is 8 mm larger than the outer diameter of the wire (5).

7. The wiring connection device for coal mine electromechanical equipment according to claim 1, characterized in that: The inner wall of the sleeve (1) is fixed with a second sealing ring (10).

8. The wiring connection device for coal mine electromechanical equipment according to claim 1, characterized in that: The sleeve (1) has a threaded groove (11) inside, and the inner tube (2) has a threaded ring (12) fixed to the circumferential wall of one end inside the sleeve (1).

9. A wiring connection device for coal mine electromechanical equipment according to claim 8, characterized in that: The external thread on the threaded ring (12) is adapted to the internal thread of the threaded groove (11), and the threaded ring (12) is screwed into the threaded groove (11).

10. A wiring connection device for coal mine electromechanical equipment according to claim 7, characterized in that: The second sealing ring (10) is made of rubber.

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