An explosion-proof cable drum that is easy to assemble

Abstract

The utility model discloses an easily assembled anti-explosion cable reel, the anti-explosion cable reel carries out modular design to internal anti-explosion protection electrical component, integrates protection switch in an independent anti-explosion inner bag assembly, can carry out preassembly and test before loading into cable reel body, only needs to put the preassembled whole anti-explosion inner bag assembly from the installation mouth into the accommodation cavity, then through the inner bag flange, one -time fixed to the push hand frame and cable reel body, can greatly reduce the part quantity and complexity of on -line assembly, reduces assembly difficulty and work hour, is favorable to scale production, and moreover seals the component that the electric spark is most likely to produce in the anti -explosion inner bag cavity formed by anti -explosion inner bag assembly completely, makes protection switch action executing mechanism and external environment isolated, significantly promotes the safety level in the flammable and explosive environment, can control the on -off electricity of whole cable reel safely through handle switch outside, satisfies anti -explosion requirement, and also satisfies the operation convenience requirement.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof electrical technology, specifically to an explosion-proof cable reel that is easy to assemble. Background Technology

[0002] Cable reels are reels used by industrial and mining enterprises to wind wires and cables. They are currently widely used in many industries such as oil fields and mines, construction, machinery manufacturing, scientific research, ports and docks, shopping malls, hotels, and road and bridge construction.

[0003] Cable reels are commonly used in special environments such as mines and oil fields, or other environments containing flammable gas mixtures. These environments invariably contain flammable and explosive gases; if ordinary cable reels are used, even slight friction between the plug and socket can generate tiny sparks that pose a danger. Therefore, cable reels need to be explosion-proof and have a built-in miniature leakage current switch to quickly cut off the power supply in the event of a leakage, ensuring the safety of personnel and equipment. However, existing explosion-proof cable reels, in order to achieve these functions, suffer from drawbacks such as complex explosion-proof structures and cumbersome production and assembly processes.

[0004] In view of this, there is an urgent need to design an explosion-proof cable reel that is easy to assemble in order to overcome the defects of existing explosion-proof cable reels. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an easily assembled explosion-proof cable reel, comprising a pusher frame and a cable reel body, and an explosion-proof inner liner assembly. The explosion-proof inner liner assembly includes an inner liner body and an inner liner flange connected to the inner liner body. A protective switch is connected within the inner liner body. The cable reel body has a receiving cavity, with an installation port on the side of the receiving cavity near the pusher frame. The inner liner body is located within the receiving cavity. One side of the inner liner flange is connected to the pusher frame, and the other side of the inner liner flange is connected to the outer wall of the installation port. A handle switch is connected to the pusher frame, and the output shaft of the handle switch passes through the inner liner flange and is linked to the protective switch. An explosion-proof socket is provided on the side of the receiving cavity away from the pusher frame. The inner liner body has a wire-passing hole for electrical connection between the protective switch and the explosion-proof socket.

[0006] In one possible implementation, the inner flange sequentially includes a first mounting plate, a connecting column, and a second mounting plate. The first mounting plate is connected to the pusher frame by fasteners, and the second mounting plate is connected to the outer wall of the mounting port by fasteners.

[0007] In one possible implementation, the second mounting plate has a first threaded connection on the side near the accommodating cavity, and the inner liner body has a second threaded connection on the side near the inner liner flange. The inner liner body is connected to the inner liner flange through the cooperation of the second threaded connection and the first threaded connection, and the inner liner body and the inner liner flange form an inner liner cavity.

[0008] In one possible implementation, the protective switch is connected inside the inner liner cavity on the side away from the inner liner flange, and the wire hole is connected to both the receiving cavity and the inner liner cavity.

[0009] In one possible implementation, the inner flange has a linkage hole, and the output shaft of the handle switch is connected to the linkage hole.

[0010] In one possible implementation, the pusher frame includes a frame and a pusher connected to the frame. The frame includes a support portion, with a column on the side of the support portion near the pusher. The pusher is connected to the column, and support feet and wheels are respectively provided at the front and rear of the side of the support portion away from the pusher.

[0011] In one possible implementation, one side of the column is a mounting groove, and the handle switch is connected within the mounting groove.

[0012] In one possible implementation, a take-up handle is provided on the side of the accommodating cavity away from the pusher frame.

[0013] In one possible implementation, the protective switch is at least one of a residual current circuit breaker and a miniature circuit breaker.

[0014] In one possible implementation, both the inner liner body and the inner liner flange are integrally formed.

[0015] Compared with the prior art, the technical solution provided by this utility model has the following advantages: This technical solution for explosion-proof cable reels features a modular design for the internal explosion-proof electrical components. The protective switches are integrated into a single, independent explosion-proof inner liner assembly. Pre-assembly and testing can be performed before installation into the cable reel body. Simply insert the pre-assembled inner liner assembly into the receiving cavity through the installation port, and then secure it to the pusher frame and cable reel body in one go using the inner liner flange. This significantly reduces the number and complexity of parts in online assembly, lowers assembly difficulty and time, and facilitates large-scale production with better consistency. Furthermore, if the cable reel malfunctions, maintenance personnel do not need to disassemble the entire device; they can simply unscrew the connection and remove the entire explosion-proof inner liner assembly from the installation port to conduct a comprehensive inspection, testing, or replacement of the internal protective switches and wiring.

[0016] This technical solution for explosion-proof cable reels seals all components most prone to generating electric sparks within an explosion-proof inner chamber, isolating the protective switch actuator from the external environment. The chamber can withstand the pressure generated by an internal explosion and prevents flames from spreading outward. Through physical isolation and enhanced sealing, the safety level in flammable and explosive environments is significantly improved. Operators can safely control the power supply to and from the cable reel from the outside using a handle switch, satisfying both explosion-proof requirements and ease of operation. Attached Figure Description

[0017] Figure 1 This is a perspective view of an explosion-proof cable reel according to an embodiment of the present invention.

[0018] Figure 2 This is an exploded view of the cable reel body, explosion-proof inner liner assembly, and handle switch according to an embodiment of this utility model.

[0019] Figure 3 This is an exploded view of the explosion-proof inner liner assembly according to an embodiment of this utility model.

[0020] Figure 4 This is a cross-sectional view of an explosion-proof cable reel according to an embodiment of the present invention.

[0021] Figure 5 This is a perspective view of the explosion-proof inner liner assembly connected to the pusher frame according to an embodiment of the present invention.

[0022] Figure 6 This is a perspective view of the handle switch connected to the pusher frame in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual object drawings, and should not be construed as limiting this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] Combined with appendix Figure 1 To be continued Figure 6This utility model provides an easily assembled explosion-proof cable reel, comprising a pusher frame 1 and a cable reel body 2, and an explosion-proof inner liner assembly 3. The explosion-proof inner liner assembly 3 includes an inner liner body 31 and an inner liner flange 32 connected to the inner liner body 31. A protective switch 4 is connected inside the inner liner body 31. The cable reel body 2 has a receiving cavity 21, and an installation port 22 is opened on the side of the receiving cavity 21 near the pusher frame 1. The inner liner body 31 is located inside the receiving cavity 21. One side of the inner liner flange 32 is connected to the pusher frame 1, and the other side of the inner liner flange 32 is connected to the outer wall of the installation port 22. A handle switch 5 is connected to the pusher frame 1. The output shaft 51 of the handle switch 5 passes through the inner liner flange 32 and is linked to the protective switch 4. An explosion-proof socket 6 is opened on the side of the receiving cavity 21 away from the pusher frame 1. A wire passage hole 311 is provided on the inner liner body 31 for electrical connection between the protective switch 4 and the explosion-proof socket 6.

[0025] In this embodiment, the explosion-proof cable reel features a modular design for its internal explosion-proof electrical components. The protection switch 4 is integrated into a separate explosion-proof inner liner assembly 3, allowing for pre-assembly and testing before being installed into the cable reel body 2. The entire pre-assembled explosion-proof inner liner assembly 3 is simply placed into the receiving cavity 21 through the installation port and then fixed to the pusher frame 1 and the cable reel body 2 in one go via the inner liner flange 32. This significantly reduces the number and complexity of parts in online assembly, lowers assembly difficulty and time, and facilitates large-scale production with better consistency. Moreover, if the cable reel malfunctions, maintenance personnel do not need to disassemble the entire device. They can simply unscrew the connection and remove the entire explosion-proof inner liner assembly 3 from the installation port to conduct a comprehensive inspection, testing, or replacement of the internal protection switch 4 and wiring.

[0026] In this embodiment, as shown in the appendix Figure 3 As shown, the inner flange 32 includes a first mounting plate 321, a connecting column 322, and a second mounting plate 323 in sequence. The first mounting plate 321 is connected to the pusher frame 1 by fasteners, and the second mounting plate 323 is connected to the outer wall of the mounting port 22 by fasteners.

[0027] In this embodiment, as shown in the appendix Figure 3 As shown, the second mounting plate 323 is provided with a first threaded connection part 324 on the side near the accommodating cavity 21, and the inner liner body 31 is provided with a second threaded connection part 312 on the side near the inner liner flange 32. The inner liner body 31 is connected to the inner liner flange 32 through the cooperation of the second threaded connection part 312 and the first threaded connection part 324. The inner liner body 31 and the inner liner flange 32 form an inner liner cavity 33.

[0028] In this embodiment, the first threaded connection portion 324 can be an external thread or an internal thread, and the second threaded connection portion 312 can be an internal thread or an external thread.

[0029] In this embodiment, as shown in the appendix Figure 4 As shown, the protection switch 4 is connected to the side of the inner liner cavity 33 away from the inner liner flange 32, and the wire hole 311 is connected to the accommodating cavity 21 and the inner liner cavity 33 respectively.

[0030] In this embodiment, the wire hole 311 can be sealed with insulating material to further improve the isolation performance between the accommodating cavity 21 and the inner cavity 33.

[0031] In this embodiment, as shown in the appendix Figure 3 As shown, the inner flange 32 has a linkage hole 325, and the output shaft 51 of the handle switch 5 is connected to the linkage hole 325.

[0032] In this embodiment, as shown in the appendix Figure 5 and attached Figure 6 As shown, the pusher frame 1 includes a frame 11 and a pusher 12 connected to the frame 11. The frame 11 includes a support part 111. The support part 111 is provided with a column 112 on the side near the pusher 12. The pusher 12 is connected to the column 112. The support part 111 is provided with a support foot 113 and a wheel 114 on the front and back sides away from the pusher, respectively.

[0033] In this embodiment, the pusher frame 1 adopts a split structure, which facilitates product assembly, production and transportation.

[0034] In this embodiment, as shown in the appendix Figure 6 As shown, one side of the column 112 is a mounting groove 115, and the handle switch 5 is connected in the mounting groove 115 to prevent workers from accidentally touching the handle switch 5.

[0035] In this embodiment, as shown in the appendix Figure 2 As shown, a take-up handle 23 is provided on the side of the accommodating cavity 21 away from the pusher frame 1.

[0036] In this embodiment, the protective switch 4 is at least one of a residual current circuit breaker and a miniature circuit breaker; usually, only a residual current circuit breaker needs to be installed.

[0037] In this embodiment, as shown in the appendix Figure 3 As shown, the inner liner body 31 and the inner liner flange 32 are both integrally formed.

[0038] This utility model's explosion-proof cable reel seals all electrical switches, which are most likely to generate electric sparks, within the explosion-proof inner chamber 33 formed by the explosion-proof inner chamber assembly 3. This isolates the protective switch 4's actuating mechanism from the external environment. The chamber can withstand the pressure generated by an internal explosion and prevents flames from spreading outward. Through physical isolation and enhanced sealing, the safety level in flammable and explosive environments is significantly improved. Operators can safely control the power supply of the entire cable reel from the outside using the handle switch 5, satisfying both explosion-proof requirements and ease of operation.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model, or direct / indirect applications in other related technical fields, should be included within the scope of protection of the claims of this utility model.

Claims

1. An easily assembled explosion-proof cable reel, comprising a pusher frame and a cable reel body, characterized in that, It also includes an explosion-proof inner liner assembly, which includes an inner liner body and an inner liner flange connected to the inner liner body. A protective switch is connected inside the inner liner body. The cable reel body has a receiving cavity. An installation port is opened on the side of the receiving cavity near the pusher frame. The inner liner body is located inside the receiving cavity. One side of the inner liner flange is connected to the pusher frame, and the other side of the inner liner flange is connected to the outer wall of the installation port. A handle switch is connected to the pusher frame. The output shaft of the handle switch passes through the inner liner flange and is linked to the protective switch. An explosion-proof socket is opened on the side of the receiving cavity away from the pusher frame. A wire hole is provided on the inner liner body for electrical connection between the protective switch and the explosion-proof socket.

2. The explosion-proof cable reel that is easy to assemble according to claim 1, characterized in that, The inner flange includes a first mounting plate, a connecting column, and a second mounting plate in sequence. The first mounting plate is connected to the pusher frame by fasteners, and the second mounting plate is connected to the outer wall of the mounting port by fasteners.

3. The explosion-proof cable reel that is easy to assemble according to claim 2, characterized in that, The second mounting plate has a first threaded connection part on the side near the accommodating cavity, and the inner liner body has a second threaded connection part on the side near the inner liner flange. The inner liner body is connected to the inner liner flange through the cooperation of the second threaded connection part and the first threaded connection part, and the inner liner body and the inner liner flange form an inner liner cavity.

4. The explosion-proof cable reel that is easy to assemble according to claim 3, characterized in that, The protective switch is connected inside the inner liner cavity on the side away from the inner liner flange, and the wire hole is connected to the accommodating cavity and the inner liner cavity respectively.

5. The explosion-proof cable reel that is easy to assemble according to claim 3, characterized in that, The inner flange is provided with a linkage hole, and the output shaft of the handle switch is connected to the linkage hole.

6. The explosion-proof cable reel that is easy to assemble according to claim 1, characterized in that, The pusher frame includes a frame and a pusher connected to the frame. The frame includes a support part, and a column is provided on the side of the support part near the pusher. The pusher is connected to the column. Support feet and wheels are respectively provided on the front and back sides of the support part away from the pusher.

7. The explosion-proof cable reel that is easy to assemble according to claim 6, characterized in that, One side of the column is a mounting groove, and the handle switch is connected in the mounting groove.

8. An easily assembled explosion-proof cable reel according to any one of claims 1 to 7, characterized in that, A retractable handle is provided on the side of the accommodating cavity away from the pusher frame.

9. An easily assembled explosion-proof cable reel according to any one of claims 1 to 7, characterized in that, The protective switch is at least one of a residual current circuit breaker and a miniature circuit breaker.

10. An easily assembled explosion-proof cable reel according to any one of claims 1 to 7, characterized in that, The inner liner body and the inner liner flange are both integrally formed.

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