Explosion-proof electric heat tracing junction box

Abstract

The utility model discloses an explosion-proof electric heat tracing junction box which comprises a junction box, a wire clamping device is installed on the outer side of the junction box, the wire clamping device comprises a matching plate, a connecting spring, a control sleeve, a wire clamping pipe, a connecting pipe, a control plate, an adaptive groove, an adaptive block, a linkage sleeve, a control block and a control groove, and the connecting spring is connected with the matching plate and the control block. The adaptive groove is spirally formed in the inner wall of the control sleeve, the adaptive block is arranged on the outer side of the linkage sleeve, the control panel is arranged in the control groove, the control block is connected to one side of the control panel, the control groove is obliquely formed in the inner side of the wire clamping pipe, a locking mechanism is arranged on the outer side of the wire clamping pipe, and the locking mechanism comprises a locking sleeve, a locking block, a locking spring, a fixing block, a limiting block and a limiting groove. The locking spring is connected with two adjacent locking blocks, the plurality of fixing blocks are arranged on the outer side of the wire clamping pipe, the plurality of limiting blocks are arranged on one side of the control sleeve, the limiting groove is formed in one side of the locking block, and the problem that a traditional junction box is poor in cable adaptability and clamping stability is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of explosion-proof electric heat tracing junction boxes, and more specifically, it relates to an explosion-proof electric heat tracing junction box. Background Technology

[0002] In the field of explosion-proof electric heat tracing junction boxes, the compatibility and clamping stability of cables directly affect the installation efficiency and operational safety of the equipment. However, the explosion-proof electric heat tracing junction boxes currently on the market still have many technical defects in practical applications. These problems not only affect the installation effect, but may also lead to operational failures and safety hazards.

[0003] The primary problem is poor adaptability. Existing explosion-proof electric heat tracing junction boxes have significant defects: First, the cable entry point lacks a flexible adjustment mechanism; second, it cannot adapt to the installation requirements of cables of different specifications; third, the fixed structural design is relatively simple and difficult to achieve adaptive clamping; in addition, the shortcomings of this design not only reduce the convenience of installation, but may also cause cable damage due to improper adaptation, affecting the performance and increasing installation time and maintenance difficulty.

[0004] More critically, the clamping stability is poor. Although some devices have implemented cable adaptation functions, they have serious problems: First, the clamping structure design is simple and lacks reliability, making it easy for the structure to loosen due to external influences, which in turn causes changes in clamping force; especially under the action of external force, displacement is likely to occur; finally, this design deficiency not only affects operational safety, but may also cause the cable to fall off or be damaged due to clamping failure. This structural defect not only reduces the service life of the equipment, but may also lead to safety accidents due to poor stability, affecting operational quality and usage safety. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides an explosion-proof electric heat tracing junction box to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above object, the utility model provides the following technical scheme: An explosion -proof electric heat tracing junction box, including the junction box, the junction box outside is installed with the wire clamping device, the wire clamping device includes cooperation board, connecting spring, control cover, wire clamping pipe, connecting pipe, control board, adaptive groove, adaptive block, linkage cover, control block and control groove, the cooperation board fixedly arranged in the wire clamping pipe inside, the connecting spring both ends are connected with cooperation board and control block respectively, the control cover both ends are rotatably connected with connecting pipe and wire clamping pipe, the connecting pipe is fixedly installed in the junction box outside, the adaptive groove is spirally arranged in the control cover inner wall, the adaptive block is fixedly arranged in the linkage cover outside, and the adaptive block slides in the adaptive groove, the linkage cover is arranged in the connecting pipe inside, one end of the linkage cover is contact type connection with control block, the control board is slidably arranged in the control groove, the control block is fixedly connected in one side of control board, the control groove is obliquely arranged in the wire clamping pipe inside, the wire clamping pipe outside is provided with locking mechanism, the locking mechanism includes locking cover, locking block, locking spring, fixed block, limiting block and limiting groove, the locking cover is arranged in the wire clamping pipe outside, the locking block is arranged in one side of control cover, the locking spring both ends are connected with adjacent two locking blocks respectively, a plurality of fixed blocks are fixedly arranged in the wire clamping pipe outside, a plurality of limiting blocks are fixedly arranged in one side of control cover, the limiting groove is arranged in one side of locking block, and the limiting groove is matched with limiting block.

[0009] The utility model further sets up, the junction box top is equipped with the lid, the lid is detachably installed at the junction box top through the thread.

[0010] The utility model further sets up, the lid top fixed connection is equipped with the handle.

[0011] The utility model further sets up, the locking cover is movably installed in the wire clamping pipe outside through the thread.

[0012] The utility model further sets up, the linkage cover outside is equipped with linkage groove, the connecting pipe inside is fixedly equipped with linkage rail, the linkage groove is matched with linkage rail, has realized the orientation and the location of linkage cover.

[0013] The utility model further sets up, the fixed block is the cylindrical structure design, makes the component cooperation more harmonious.

[0014] The utility model further sets up, one side of the control block is equipped with the adhering plate, the adhering plate is made of rubber material, has realized the stable and soft clamping of cable, prevents the cable from being damaged.

[0015] The utility model further sets up, one side of the control block is equipped with the adhering plate, the adhering plate is made of rubber material, has realized the stable and soft clamping of cable, prevents the cable from being damaged.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a kind of explosion-proof electric heat tracing junction box, with following beneficial effects:

[0018] 1, equipment whole is through the precise cooperation of junction box, lid and handle, constructs a complete protection system, and junction box provides stable installation base, and the threaded connection of lid realizes convenient disassembly, and the setting of handle ensures that operation is convenient, this structure realizes safety protection, also provide quick maintenance by screwing cooperation, and by humanization design ensures that operation is simple, effectively solve the problem of inconvenient installation and maintenance of traditional junction box, improve work efficiency, realize safety protection.

[0019] 2, cable clamping device is through the collaborative work of cooperation plate, connecting spring, control sleeve, cable clamping tube, connecting pipe, control plate, adaptive slot, adaptive block, linkage sleeve, control block and control slot, forms a flexible clamping system, and the elastic cooperation of cooperation plate and connecting spring provides adaptive base, and the spiral design of control sleeve and adaptive slot realizes accurate adjustment, and the rubber material of sticking plate ensures safe clamping, this structure not only realizes flexible adaptation by linkage mechanism, and ensures cable safety by material selection, effectively solve the problem of poor adaptability of traditional junction box, improve wiring efficiency, realize accurate adaptive clamping.

[0020] 3, locking mechanism is through the precise cooperation of locking sleeve, locking block, locking spring, fixed block, limiting block and limiting slot, constructs a reliable positioning system, and the threaded design of locking sleeve provides locking function, and the cooperation of locking block and fixed block and locking wheel realizes positioning, and the elastic setting of locking spring ensures automatic reset, this structure not only realizes stable positioning, and ensures smooth operation by locking wheel design, effectively solve the problem of poor clamping stability of traditional junction box, adapt to various working conditions, ensure operation safety. DRAWINGS

[0021] Figure 1 It is the overall structure schematic drawing of a kind of explosion-proof electric heat tracing junction box in the utility model;

[0022] Figure 2 It is the dispersed structure schematic drawing of cable clamping device and locking mechanism part in the utility model;

[0023] Figure 3 It is the section structure schematic drawing of cable clamping device and locking mechanism part in the utility model;

[0024] Figure 4 It is the section structure schematic drawing of cable clamping tube and control sleeve and connecting pipe part in the utility model;

[0025] Figure 5The utility model discloses a linkage cover, control block and control cover part's section view structure schematic diagram.

[0026] In the drawing: 1, terminal box;2, cooperation board;3, connecting spring;4, control cover;5, card line pipe;6, connecting pipe;7, control board;8, adaptation groove;9, adaptation block;10, linkage cover;11, control block;12, control groove;13, locking cover;14, locking block;15, locking spring;16, fixed block;17, limit block;18, limit groove;19, box cover;20, handle;21, linkage groove;22, linkage rail;23, locking wheel;24, fit board. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled in the art to which the present application belongs, unless otherwise specified.

[0029] In the present application, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction, unless otherwise stated. Similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings, and "inner, outer" refers to the inner and outer relative to the contour of each component, but the above orientation words are not used to limit the present application.

[0030] Please refer to Figures 1-5The utility model provides an explosion -proof electric heat tracing junction box, including junction box 1, junction box 1 outside installs wire clamping device, and wire clamping device includes cooperation board 2, connecting spring 3, control cover 4, wire clamping pipe 5, connecting pipe 6, control board 7, adaptation groove 8, adaptation block 9, linkage cover 10, control block 11 and control groove 12, cooperation board 2 is fixedly arranged in wire clamping pipe 5 inside, and connecting spring 3 both ends are connected with cooperation board 2 and control block 11 respectively, and control cover 4 both ends are rotatably connected with connecting pipe 6 and wire clamping pipe 5 respectively, and connecting pipe 6 is fixedly installed in junction box 1 outside, and adaptation groove 8 is spirally set up in the inner wall of control cover 4, and adaptation block 9 is fixedly arranged in the outside of linkage cover 10, and adaptation block 9 is slid in adaptation groove 8, and linkage cover 10 is arranged in connecting pipe 6 inside, and one end of linkage cover 10 is contact type connection with control block 11, and control board 7 is slidably arranged in control groove 12, and control block 11 is fixedly connected in one side of control board 7, and control groove 12 is obliquely set up in wire clamping pipe 5 inside, and wire clamping pipe 5 outside is provided with locking mechanism, and locking mechanism includes locking cover 13, locking block 14, locking spring 15, fixed block 16, limiting block 17 and limiting groove 18, locking cover 13 is arranged in wire clamping pipe 5 outside, locking block 14 is arranged in one side of control cover 4, locking spring 15 both ends are connected with adjacent two locking block 14 respectively, and a plurality of fixed blocks 16 are fixedly arranged in wire clamping pipe 5 outside, a plurality of limiting blocks 17 are fixedly arranged in one side of control cover 4, limiting groove 18 is set up in one side of locking block 14, and limiting groove 18 is adapted with limiting block 17.

[0031] The junction box 1 top is equipped with the box cover 19, and the box cover 19 is detachably installed at the junction box 1 top through the thread.

[0032] The box cover 19 top is fixedly connected with the handle 20.

[0033] In this embodiment, when the access cable needs to be removed, first release the clamping of the root cable, first rotate the locking sleeve 13 in the positive direction, so that the locking sleeve 13 moves along the threads on the outer wall of the wire clamping pipe 5, then the locking sleeve 13 no longer limits the locking wheel 23, then rotate the control sleeve 4 in the positive direction, the control sleeve 4 drives the multiple limiting blocks 17 on one side to rotate in the positive direction, then the limiting blocks 17 drive the locking blocks 14 to rotate in the positive direction through the limiting grooves 18, then the locking blocks 14 drive the locking wheel 23 rotatingly installed on one side to move out from between the two fixed blocks 16, and the locking wheel 23 drives the locking blocks 14 to slide outward along the limiting blocks 17 and the limiting grooves 18, then the locking blocks 14 drive the locking springs 15 to stretch outward, and at the same time the control sleeve 4 drives the inwardly helically opened adaptive grooves 8 to rotate in the positive direction, since the adaptive blocks 9 slide in the adaptive grooves 8, and the linkage rails 22 and the linkage grooves 21 cooperate to limit the linkage sleeve 10, so that the linkage sleeve 10 and the adaptive blocks 9 cannot rotate, then the adaptive blocks 9 slide relatively along the adaptive grooves 8, and the linkage sleeve 10 slides away from the cooperation plate 2 along the linkage rails 22 and the linkage grooves 21, then the connecting springs 3 arranged on one side of the cooperation plate 2 reset to push the control blocks 11 to move, so that one side of the control blocks 11 always abuts one side of the linkage sleeve 10, then the control blocks 11 drive the control plates 7 to slide along the obliquely opened control grooves 12, then the control plates 7 drive the control blocks 11 to spread outward, so that the control blocks 11 drive the abutting plates 24 to spread outward, so that one side of the abutting plates 24 no longer clamps and contacts the outer wall of the cable, when the control plates 7 move to one end of the control grooves 12, stop rotating the control sleeve 4, then rotate the handle 20 in the positive direction to remove the box cover 19 from above the junction box 1, then disconnect the cable to be removed, and then remove the cable.

[0034] Please refer to Figures 1-5 As a further embodiment of the whole device: the locking sleeve 13 is movably installed on the outside of the wire clamping pipe 5 through threads.

[0035] The linkage sleeve 10 is provided with a linkage groove 21 on the outside, and the connecting pipe 6 is fixedly provided with a linkage rail 22 inside, and the linkage groove 21 is adapted to the linkage rail 22.

[0036] The fixed block 16 is designed in a cylindrical structure.

[0037] The locking block 14 is provided with a locking wheel 23 rotating on one side, and the locking wheel 23 is clamped into between the corresponding two fixed blocks 16.

[0038] The control block 11 is connected on one side with an abutting plate 24 made of rubber material.

[0039] More specifically, when the cable needs to be accessed, first put the cable into the cable tube 5, then make it pass through the linkage sleeve 10 and the connecting tube 6 into the junction box 1, then connect and fix the cable in the junction box 1, then install the cover 19 on one side of the junction box 1, then reverse rotate the cover 19 through the handle 20, reinstall the cover 19 on the top end of the junction box 1, then reverse rotate the control sleeve 4, which drives the reverse rotation of the adaptive slot 8 on the inner side, then the adaptive block 9 slides reversely along the adaptive slot 8, and the linkage sleeve 10 slides reversely along the linkage slot 21 and the linkage rail 22, then the linkage sleeve 10 pushes the control block 11 to move reversely, so that the control block 11 drives the control plate 7 on one side to slide reversely along the control slot 12, due to the inclined structure design of the control slot 12, then the control plate 7 drives the control block 11 to gather inward, and makes the control block 11 drive the abutting plate 24 arranged on one side to clamp the outer wall of the cable, the abutting plate 24 made of rubber material can not only adapt to clamp the cable, but also prevent the damage to the outer wall of the cable, at the same time, the control sleeve 4 will drive the locking block 14 to reverse rotation through the cooperation of the multiple limiting blocks 17 and the limiting slots 18 arranged on one side, and the locking block 14 will drive the locking wheel 23 to reverse rotation, when the cable is stably clamped, stop rotating the control sleeve 4, and make the locking block 14 drive the locking wheel 23 to move between the corresponding two fixed blocks 16, then the locking spring 15 resets to pull the locking block 14 to slide inward along the limiting block 17 and the limiting slot 18, so that the locking block 14 drives the locking wheel 23 to be clamped between the corresponding two fixed blocks 16, then reverse rotate the locking sleeve 13, so that the locking sleeve 13 resets along the threads on the outer wall of the cable tube 5, then the inner wall of the locking sleeve 13 limits the outer wall of the locking wheel 23, so that the locking wheel 23 and the locking block 14 cannot slide outward, thereby realizing the locking positioning of the control sleeve 4, and further ensuring the stable adaptive clamping of the cable.

[0040] In summary, the overall device in use or operation: when the need to access the cable to remove, first to remove the clamping of the root cable, first positive rotation of the locking sleeve 13, so that the locking sleeve 13 along the thread of the outer wall of the cable tube 5, then the locking sleeve 13 no longer on the locking wheel 23 limit, then the positive rotation of the control sleeve 4, control sleeve 4 driven by a plurality of limiting block 17 positive rotation on one side, then the limiting block 17 by limiting the slot 18 driven by the locking block 14 positive, then the locking block 14 driven by the locking wheel 23 from two fixed block 16 between the removal, and the locking wheel 23 driven by the locking block 14 along the limiting block 17 and limiting slot 18 to the outside, then the locking block 14 will drive the locking spring 15 to the outside stretch, while the control sleeve 4 will drive the inside screw opening in the adaptive groove 8 positive rotation, because the adaptive block 9 sliding in the adaptive groove 8, and the linkage rail 22 and linkage groove 21 cooperation to the linkage sleeve 10 formed a limit, so that the linkage sleeve 10 and adaptive block 9 will not rotate, then the adaptive block 9 will along the adaptive groove 8 relative sliding, and the linkage sleeve 10 will along the linkage rail 22 and linkage groove 21 to away from the side of the cooperation plate 2 sliding, then the connecting spring 3 set on one side of the cooperation plate 2 reset push control block 11 movement, so that the control block 11 on one side always with the linkage sleeve 10 on one side of the paste, then the control block 11 will drive the control plate 7 along the inclined control groove 12 sliding, then the control plate 7 will drive the control block 11 to the outside diffusion, so that the control block 11 driven by the paste plate 24 to the outside diffusion, so that the paste plate 24 on one side no longer clamping the cable outer wall, and no longer with the cable outer wall contact, when the control plate 7 moves to the control groove 12 one end, stop rotating the control sleeve 4, then the handle 20 positive rotation of the box cover 19, the box cover 19 from the junction box 1 above removal, then the cable to be removed to disconnect, then the cable to be removed can be removed.

[0041] When the cable needs to be accessed, first, the cable is inserted into the cable tube 5, then it passes through the linkage sleeve 10 and the connecting tube 6 into the junction box 1, then the cable is connected and fixed in the junction box 1, then the cover 19 is installed on one side of the junction box 1, then the cover 19 is reinstalled on the top end of the junction box 1 by reversing the handle 20, then the control sleeve 4 is reversed, the control sleeve 4 drives the matching groove 8 on the inside to reverse, then the matching block 9 slides along the matching groove 8, and the linkage sleeve 10 slides along the linkage groove 21 and the linkage rail 22, then the linkage sleeve 10 pushes the control block 11 to move reversely, so that the control block 11 drives the control plate 7 on one side to slide reversely along the control groove 12, due to the inclined structure design of the control groove 12, then the control plate 7 drives the control block 11 to gather inward, and makes the control block 11 drive the abutting plate 24 arranged on one side to clamp the outer wall of the cable, the abutting plate 24 made of rubber material can not only adapt to clamp the cable, but also prevent the cable from being damaged, at the same time, the control sleeve 4 drives the locking block 14 to reverse through the cooperation of the plurality of limiting blocks 17 and the limiting grooves 18 arranged on one side, and the locking block 14 drives the locking wheel 23 to reverse, when the cable is stably clamped, stop rotating the control sleeve 4, and make the locking block 14 drive the locking wheel 23 to move between the corresponding two fixed blocks 16, then the locking spring 15 resets to pull the locking block 14 to slide inward along the limiting block 17 and the limiting groove 18, so that the locking block 14 drives the locking wheel 23 to be clamped between the corresponding two fixed blocks 16, then the locking sleeve 13 is reversed, so that the locking sleeve 13 resets along the threads on the outer wall of the cable tube 5, then the locking sleeve 13 limits the outer wall of the locking wheel 23, so that the locking wheel 23 and the locking block 14 cannot slide outward, thereby realizing the locking and positioning of the control sleeve 4, and further ensuring the stable and adaptive clamping of the cable.

[0042] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut cooperation connection, bolt or screw connection or other known connection mode, which will not be described one by one, and the welding is preferred for the fixed connection in the above-mentioned solutions. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof electric heat tracing junction box, comprising a junction box (1), characterized in that: A wire clamping device is installed on the outside of the junction box (1). The wire clamping device includes a mating plate (2), a connecting spring (3), a control sleeve (4), a wire clamping tube (5), a connecting tube (6), a control plate (7), an adapter groove (8), an adapter block (9), a linkage sleeve (10), a control block (11), and a control groove (12). The connecting spring (3) is connected to the mating plate (2) and the control block (11). The adapter groove (8) is spirally opened on the inner wall of the control sleeve (4). The adapter block (9) is located on the outside of the linkage sleeve (10). The control plate (7) is located in the control groove (12). The control block (11) Connected to one side of the control panel (7), the control groove (12) is inclinedly opened inside the cable clamp tube (5), and a locking mechanism is provided on the outside of the cable clamp tube (5). The locking mechanism includes a locking sleeve (13), a locking block (14), a locking spring (15), a fixing block (16), a limiting block (17), and a limiting groove (18). The two ends of the locking spring (15) are respectively connected to two adjacent locking blocks (14). Multiple fixing blocks (16) are provided on the outside of the cable clamp tube (5), multiple limiting blocks (17) are provided on one side of the control sleeve (4), and the limiting groove (18) is opened on one side of the locking block (14).

2. The explosion-proof electric heat tracing junction box according to claim 1, characterized in that: The junction box (1) is provided with a cover (19) at the top, and the cover (19) is detachably installed at the top of the junction box (1) by means of threads.

3. The explosion-proof electric heat tracing junction box according to claim 2, characterized in that: The top of the lid (19) is fixedly connected to a handle (20).

4. An explosion-proof electric heat tracing junction box according to any one of claims 1-3, characterized in that: The locking sleeve (13) is installed on the outside of the cable clamp tube (5) by means of thread.

5. The explosion-proof electric heat tracing junction box according to claim 1, characterized in that: The linkage sleeve (10) has a linkage groove (21) on its outer side, and the linkage rail (22) is fixedly installed inside the connecting pipe (6). The linkage groove (21) and the linkage rail (22) are adapted to each other.

6. The explosion-proof electric heat tracing junction box according to claim 4, characterized in that: The fixing block (16) is designed as a column.

7. The explosion-proof electric heat tracing junction box according to claim 6, characterized in that: The locking block (14) has a locking wheel (23) on one side that rotates, and the locking wheel (23) is engaged between the two corresponding fixing blocks (16).

8. The explosion-proof electric heat tracing junction box according to claim 5, characterized in that: The control block (11) is connected to a bonding plate (24) on one side, and the bonding plate (24) is made of rubber.

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