Explosion-proof maintenance cable reel

Abstract

The utility model belongs to the technical field of cable reels, and particularly relates to an anti-explosion maintenance cable reel which comprises a bracket, a winding drum assembled on one side through a rotating shaft and used for winding cables, side plates arranged at the two ends of the winding drum, assembling notches formed in the circumference of the winding drum, and socket modules assembled at the notches. One end of the cable is connected with a power plug, the other end of the cable is electrically connected with the explosion-proof plug, a sliding door is slidably assembled on the circumferential surface of the shell, a containing groove is formed in the winding drum corresponding to the opening direction of the sliding door, a bent part is arranged on the edge of the assembly notch, and the shell is provided with an attaching part. According to the cable reel, the winding drum and the socket module are designed and matched to form a physical interlocking structure, cables are forcibly released to avoid accumulation and heating, the anti-explosion safety is improved, the cable reel is adaptive to flammable and explosive environments, and the cable reel has both operation convenience and industrial practicability.

Description

Technical Field

[0001] This utility model belongs to the field of cable reel technology, specifically an explosion-proof maintenance cable reel. Background Technology

[0002] Explosion-proof maintenance cable reels are mainly used in flammable and explosive environments such as petrochemical and mining industries. They are used for cable winding and management and explosion-proof power supply. The overall design takes into account both mobility and explosion-proof reliability, and is a commonly used power transmission equipment in industrial maintenance.

[0003] The existing explosion-proof maintenance cable reel mainly consists of the following parts: bracket, winding drum, side plate, handle, cable, explosion-proof socket, power indicator light, etc. The working principle is as follows: the cable is wound or released by rotating the winding drum through the handle. The explosion-proof design ensures the safety of the socket module when used in dusty, flammable and explosive environments. The whole unit realizes cable management and safe power supply functions in hazardous environments through mechanical winding and unwinding structure and explosion-proof electrical design.

[0004] The existing explosion-proof maintenance cable reels have the following drawbacks: the sockets of existing cable reels are mostly located on one side of the baffle, allowing workers to directly operate the sockets for connection. During use, workers often do not completely release the cable, resulting in some cable remaining piled on the winding drum, which seriously affects heat dissipation performance. When operating under load for a long time, the cable is very prone to overheating due to poor heat dissipation, posing a high risk of fire or even explosion. Therefore, an explosion-proof maintenance cable reel is proposed to address the above problems. Utility Model Content

[0005] To address the shortcomings of existing explosion-proof maintenance cable reels, a new type of explosion-proof maintenance cable reel is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The explosion-proof maintenance cable reel of this utility model includes a bracket, a pulley is provided at the bottom of the bracket, and a winding drum for winding the cable is rotatably mounted on one side of the bracket via a rotating shaft. Side plates are provided at both ends of the winding drum. An assembly notch is opened on the circumference of the winding drum, and a socket module is installed at the assembly notch. The socket module includes a shell that mates with the assembly notch to form a complete cylindrical structure. An explosion-proof plug is installed inside the shell. One end of the cable is provided with a power plug that connects to an external power source, and the other end is electrically connected to the explosion-proof plug. A sliding door is slidably mounted on the circumference of the shell, and a receiving groove for accommodating the sliding door is opened on the winding drum in the opening direction of the sliding door.

[0007] Preferably, the outer wall of the sliding door is provided with a groove for pulling the sliding door.

[0008] Preferably, the edge of the assembly notch is provided with a bent portion for assembling the socket module, and the outer shell is provided with a fitting portion adapted to the bent portion, and the bent portion and the fitting portion are fixedly connected by bolts.

[0009] Preferably, a power indicator light is provided on one side of the winding drum.

[0010] Preferably, the side plate is provided with a handle for rotating the winding drum to wind the cable onto the winding drum.

[0011] Preferably, a first permanent magnet is provided at one end of the sliding door, and a second permanent magnet with opposite magnetic poles to the first permanent magnet is provided on the inner side of the side plate. When the first permanent magnet and the second permanent magnet are attracted together, they are used to fix the sliding door.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides an explosion-proof maintenance cable reel. Through the design and cooperation of the reel notch and the socket module, a mechanical interlocking mechanism is formed, which locks when the cable is covered and unlocks when it is released. This forces workers to release all the cable before use, preventing heat dissipation problems caused by local cable accumulation. The structural design eliminates the risk of fire caused by cable overheating, significantly improving the safety of operation in explosion-proof environments. The physical structure intuitively guides correct operation, reducing safety risks caused by poor human habits and lowering the rate of operational errors. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0015] Figure 1 This is a side view of the structure of this utility model;

[0016] Figure 2 This is a radial sectional view of the winding drum of this utility model;

[0017] Figure 3 yes Figure 2 Enlarged view of the structure at point A in the middle;

[0018] Figure 4 This is an axial sectional view of the present invention;

[0019] Figure 5 This is a front view of the structure of this utility model;

[0020] Legend:

[0021] 1. Bracket; 2. Pulley; 3. Cable; 301. Power plug; 4. Rewind drum; 5. Side plate; 6. Assembly notch; 7. Socket module; 701. Housing; 702. Explosion-proof plug; 703. Sliding door; 8. Receiving slot; 9. Groove; 10. Bending part; 11. Fitting part; 12. Bolt; 13. Power indicator light; 14. Handle; 15. First permanent magnet; 16. Second permanent magnet. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figures 1-5 The present invention discloses an explosion-proof maintenance cable reel, comprising a bracket 1, a pulley 2 at the bottom of the bracket 1, and a winding drum 4 for winding a cable 3 rotatably mounted on one side of the bracket 1 via a pivot. Side plates 5 are provided at both ends of the winding drum 4. An assembly notch 6 is provided on the circumference of the winding drum 4, and a socket module 7 is mounted at the assembly notch 6. The socket module 7 includes a housing 701 that mates with the assembly notch 6 to form a complete cylindrical structure. An explosion-proof plug 702 is mounted inside the housing 701. One end of the cable 3 is connected to an external power source. The power plug 301 is electrically connected to the explosion-proof plug 702 at the other end. A sliding door 703 is slidably mounted on the circumferential surface of the housing 701. A receiving groove 8 for accommodating the sliding door 703 is provided on the winding drum 4 at the opening direction of the sliding door 703. A groove 9 for pulling the sliding door 703 is provided on the outer wall of the sliding door 703. A first permanent magnet 15 is provided at one end of the sliding door 703. A second permanent magnet 16 with opposite magnetic poles to the first permanent magnet 15 is provided on the inner side of the side plate 5. When the first permanent magnet 15 and the second permanent magnet 16 are attracted together, they are used to fix the sliding door 703.

[0025] The edge of the assembly notch 6 is provided with a bent portion 10 for assembling the socket module 7. The housing 701 is provided with a fitting portion 11 adapted to the bent portion 10. The bent portion 10 and the fitting portion 11 are connected and fixed by bolts 12. A power indicator light 13 is provided on one side of the winding drum 4. A handle 14 is provided on the side plate 5 for rotating the winding drum 4 to wind the cable 3 onto the winding drum 4.

[0026] Working principle: When the cable 3 is wound around the take-up drum 4, its outer surface naturally covers the socket module housing 701. The sliding door 703 is physically blocked by the upper cable 3, and the groove 9 cannot be accessed, forming an operation lock state. When the socket module 7 needs to be used, the take-up drum 4 must be rotated counterclockwise by the handle 14 or the cable 3 must be pulled out to completely release the cable 3, exposing the socket module housing 701. At this time, the sliding door 703 is pulled into the receiving groove 8, and the explosion-proof plug 702 can be exposed for docking. If the cable 3 is not completely released, the remaining wound cable 3 will block the sliding door 703, thus ensuring that the socket module 7 can only be used when the cable 3 is fully unwound and not piled up on the take-up drum 4. From a mechanical structure perspective, this eliminates the safety hazard caused by local stacking and heating of the cable 3. The socket module 7 is modularly installed by connecting the bending part 10 and the fitting part 11 with bolts 12. One end of the cable 3 is... The power plug 301 is connected to an external power source, and the other end is electrically connected to the explosion-proof plug 702. The power indicator light 13 displays the power-on status in real time. The side plate 5 restricts the axial movement of the cable to ensure neat winding. After use, the sliding door 703 is closed. The first permanent magnet 15 on the sliding door 703 and the second permanent magnet 16 on the side plate 5 are attracted to fix the sliding door 703. Through structural design, this utility model improves the safety and practicality of the explosion-proof maintenance cable reel. The mechanical interlocking mechanism of locking when the cable 3 is covered and unlocking when released physically requires workers to release all cables 3 before use, effectively avoiding heat dissipation problems caused by local accumulation of cables 3, and reducing the risk of safety hazards caused by cable overheating from the root. The modular installation design of the socket module 7 facilitates later maintenance and replacement, and is suitable for explosive environments such as dust and humidity, significantly improving the safety and convenience of industrial maintenance operations.

[0027] The internal electrical configuration of the cable reel of this utility model uses conventional electrical components in the field to realize the circuit function. For example, the cable 3 is connected to the explosion-proof plug 702 through the terminal block, the wire connects the power indicator light 13 in parallel with the power supply circuit, the line is fixed to the inner wall of the winding drum 4 by the buckle, and the overload protection device is fixed by the bracket and connected in series with the explosion-proof plug circuit. The selection of the above components and the connection method are all conventional designs of explosion-proof equipment and belong to the known technology in the field. The lack of detailed description does not affect the full disclosure of this utility model.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An explosion-proof maintenance cable reel, comprising a bracket (1), wherein a pulley (2) is provided at the bottom end of the bracket (1), and a winding drum (4) for winding a cable (3) is rotatably mounted on one side of the bracket (1) via a rotating shaft, wherein side plates (5) are provided at both ends of the winding drum (4), characterized in that: The winding drum (4) has an assembly notch (6) on its circumference. A socket module (7) is installed at the assembly notch (6). The socket module (7) includes a shell (701) that cooperates with the assembly notch (6) to form a complete cylindrical structure. An explosion-proof plug (702) is installed inside the shell (701). One end of the cable (3) is provided with a power plug (301) that is connected to an external power source, and the other end is electrically connected to the explosion-proof plug (702). A sliding door (703) is slidably installed on the circumference of the shell (701). A receiving groove (8) for accommodating the sliding door (703) is provided on the winding drum (4) in the opening direction of the sliding door (703).

2. The explosion-proof maintenance cable reel according to claim 1, characterized in that: The outer wall of the sliding door (703) is provided with a groove (9) for pulling the sliding door (703).

3. The explosion-proof maintenance cable reel according to claim 1, characterized in that: The edge of the assembly notch (6) is provided with a bent portion (10) for assembling the socket module (7), and the outer shell (701) is provided with a fitting portion (11) adapted to the bent portion (10). The bent portion (10) and the fitting portion (11) are connected and fixed by bolts (12).

4. The explosion-proof maintenance cable reel according to claim 1, characterized in that: A power indicator light (13) is provided on one side of the winding drum (4).

5. The explosion-proof maintenance cable reel according to claim 1, characterized in that: The side plate (5) is provided with a handle (14) for rotating the winding drum (4) to wind the cable (3) onto the winding drum (4).

6. The explosion-proof maintenance cable reel according to claim 1, characterized in that: One end of the sliding door (703) is provided with a first permanent magnet (15), and the inner side of the side plate (5) is provided with a second permanent magnet (16) with the opposite magnetic pole to the first permanent magnet (15). When the first permanent magnet (15) and the second permanent magnet (16) are attracted together, they are used to fix the sliding door (703).

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