An explosion-proof cable sealing joint structure

Abstract

The utility model belongs to the technical field of explosion-proof cables, and specifically relates to an explosion-proof cable sealing joint structure, including a mounting seat, the interior of the mounting seat is slidably connected with a cable, two ends of the mounting seats that are away from each other are fixedly connected with spring pieces, the outer side of the cable is slidably sleeved with a sealing sleeve, the sealing sleeve is in contact with the spring piece, the outer side of the spring piece is threadedly connected with a nut, and one end of one of the mounting seats away from the spring piece is fixedly connected with a fixed head. The utility model is provided with spring pieces, sealing sleeves, nuts and other components, so that the cable can be sleeved with the sealing sleeve during installation, and then the nut is rotated to make the nut and the spring piece have threaded movement, so that the nut drives the spring piece to contact the sealing sleeve, thereby effectively increasing the sealing between the cable and the mounting seat, and solving the problem of poor sealing effect when the explosion-proof cables are docked.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof cables, in particular to an explosion-proof cable sealing joint structure. Background Art

[0002] An explosion-proof cable is a specially designed cable used to safely transmit electricity or signals in a potentially explosive environment. They use processes and materials that prevent dangerous situations such as sparks, arcs or electric shocks. According to the utility model with patent authorization announcement number CN202711758U, an explosion-proof cable is disclosed. The explosion-proof cable of the utility model is composed of a conductor and an insulating layer, and the insulating layer is located outside the conductor. The insulating layer is an insulating layer composed of silicone rubber. Further, the conductor is a copper conductor. Further, the copper conductor is a tinned copper conductor. The advantage of the utility model is that the insulating layer composed of silicone rubber is used to make the explosion-proof cable of the utility model fully meet the explosion-proof requirements when used to match the explosion-proof motor. The utility model has good high temperature resistance, high safety and reliability, long service life, reduced use cost, and high cost performance. The utility model uses copper conductors to improve the conductive efficiency. Tinned copper conductors are preferred to further improve the safety and reliability of the explosion-proof cable of the utility model. However, when the explosion-proof cables are docked, the connection is unstable and the sealing effect is poor. Utility Model Content

[0003] The utility model aims to provide an explosion-proof cable sealing joint structure, which solves the problems of unstable connection and poor sealing effect when the explosion-proof cables are butt-jointed.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof cable sealing joint structure, comprising a mounting seat, the interior of the mounting seat is slidably connected to a cable, the ends of the two mounting seats away from each other are fixedly connected to a spring sheet, the outer side of the cable is slidably sleeved with a sealing sleeve, the sealing sleeve is in contact with the spring sheet, the outer side of the spring sheet is threadedly connected to a nut, one end of one of the mounting seats away from the spring sheet is fixedly connected to a fixing head, the other end of the mounting seat away from the spring sheet is fixedly connected to a connecting head, a connecting head is plugged into the interior of the fixing head, the upper end of the fixing head contacts a limiting plate, the lower end of the limiting plate is fixedly connected to a limiting block, the front and back sides of the limiting plate are fixedly connected to a guide plate, and the side of the guide plate close to the fixed head is fixedly connected to a guide block.

[0005] Preferably, the interior of the mounting seat is connected with a limit pin via a threaded connection, and the limit pin is in contact with the cable. The design of the limit pin can limit the cable.

[0006] Preferably, the number of the spring pieces on each mounting seat is four, and the four spring pieces are distributed in a ring shape on the mounting seat. The sealing sleeve can be clamped by the design of the spring pieces.

[0007] Preferably, the internal sliding connection of the fixed head is connected to the limiting block, and the internal sliding connection of the connecting head is connected to the limiting block, which can limit the connecting head through the design of the limiting block.

[0008] Preferably, the number of the guide plates is two, and the two guide plates are symmetrically distributed on the limiting plate. The design of the guide plates can play a limiting role on the limiting plate.

[0009] Preferably, a guide groove is provided inside the fixed head, and a guide block is slidably connected inside the guide groove. The design of the guide groove can limit the guide block.

[0010] Preferably, a threaded rod is threadedly connected inside the limiting plate, and the threaded rod is threadedly connected to the fixed head. The design of the threaded rod can drive the limiting plate to move.

[0011] Preferably, a knob is fixedly connected to the upper end of the threaded rod, and the knob is in contact with the limiting plate. The threaded rod can be easily rotated through the design of the knob.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model is provided with components such as spring pieces, sealing sleeves, nuts, etc., so that when the cable is installed, the sealing sleeve can be connected with the cable sleeve, and then the nut can be rotated to make the nut and the spring piece have threaded movement, so that the nut drives the spring piece to contact the sealing sleeve, thereby effectively increasing the sealing between the cable and the mounting seat, and solving the problem of poor sealing effect when the explosion-proof cables are connected.

[0014] 2. The utility model provides components such as a limit plate, a limit block, and a threaded rod, so that when the fixed head and the connector are plugged in, the threaded rod can be rotated so that the threaded rod drives the limit block on the limit plate to slide into the connector, and the connector can be limited in the fixed head, thereby ensuring the stability of the cables at both ends after connection, and solving the problem of unstable connection when the explosion-proof cables are docked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 Exploded diagram of

[0017] Figure 3 For the utility model Figure 2 Side view of

[0018] Figure 4 For the utility model Figure 3 A-section structure enlarged view.

[0019] In the figure: 1. mounting base; 2. cable; 3. limiting pin; 4. spring piece; 5. sealing sleeve; 6. nut; 7. fixing head; 8. connecting head; 9. limiting plate; 10. limiting block; 11. guide plate; 12. guide block; 13. guide groove; 14. threaded rod; 15. knob. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 A explosion-proof cable sealing joint structure includes a mounting seat 1, the interior of the mounting seat 1 is slidably connected with a cable 2, the interior of the mounting seat 1 is connected with a limit pin 3 by a thread, the limit pin 3 is in contact with the cable 2, and the design of the limit pin 3 can limit the cable 2, the ends of the two mounting seats 1 away from each other are fixedly connected with spring pieces 4, the number of spring pieces 4 of each mounting seat 1 is four, and the four spring pieces 4 are distributed in a ring shape on the mounting seat 1, and the design of the spring pieces 4 can clamp the sealing sleeve 5, the outer side of the cable 2 is slidably sleeved with a sealing sleeve 5, the sealing sleeve 5 is in contact with the spring piece 4, and the outer side of the spring piece 4 is connected with a nut 6 by a thread, one end of one of the mounting seats 1 away from the spring piece 4 is fixedly connected with a fixing head 7, and the other end of the mounting seat 1 away from the spring piece 4 is fixedly connected with a connector 8, and the fixing head 7 is plugged with a connector 8 inside.

[0022] See also Figure 2-4 The upper end of the fixed head 7 contacts the limiting plate 9, the lower end of the limiting plate 9 is fixedly connected to the limiting block 10, the internal sliding connection of the fixed head 7 is the limiting block 10, and the internal sliding connection of the connecting head 8 is the limiting block 10. Through the design of the limiting block 10, the connecting head 8 can be limited. The stop surface and the reverse surface of the limiting plate 9 are fixedly connected with a guide plate 11. There are two guide plates 11, and the two guide plates 11 are symmetrically distributed on the limiting plate 9. Through the design of the guide plate 11, the limiting plate 9 can be limited.

[0023] See also Figure 2-4A guide block 12 is fixedly connected to one side of the guide plate 11 close to the fixed head 7. A guide groove 13 is provided inside the fixed head 7. The guide block 12 is slidably connected inside the guide groove 13. The guide block 12 can be limited by the design of the guide groove 13. A threaded rod 14 is threadedly connected to the inside of the limiting plate 9. The threaded rod 14 is threadedly connected to the fixed head 7. The design of the threaded rod 14 can drive the limiting plate 9 to move. A knob 15 is fixedly connected to the upper end of the threaded rod 14. The knob 15 is in contact with the limiting plate 9. The design of the knob 15 can facilitate the rotation of the threaded rod 14.

[0024] The specific implementation process of the utility model is as follows: when in use, the sealing sleeve 5 is sleeved with the cable 2, and then the cable 2 is inserted into the mounting seat 1, and then the limiting nail 3 is rotated and screwed in, so that the limiting nail 3 limits the cable 2, so that the cable 2 is installed in the mounting seat 1, and then the sealing sleeve 5 is placed inside the plurality of spring pieces 4, and then the nut 6 is rotated to make the nut 6 and the spring piece 4 have a threaded movement, so that the nut 6 squeezes the spring piece 4, so that the spring piece 4 presses the sealing sleeve 5, which can effectively increase the sealing between the cable 2 and the mounting seat 1;

[0025] By plugging the connector 8 into the fixed head 7 and then turning the knob 15, the knob 15 drives the threaded rod 14 to rotate, so that the threaded rod 14 and the fixed head 7 undergo threaded motion, and the threaded rod 14 drives the limit plate 9 to move, and the limit plate 9 drives the limit block 10 to move, so that the limit block 10 slides into the interior of the fixed head 7 and the connector 8, which can limit the connector 8, so that the cables 2 at both ends remain stable after connection.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof cable sealing joint structure, comprising a mounting seat (1), characterized in that: The mounting seat (1) is slidably connected to a cable (2) inside, and the ends of the two mounting seats (1) that are away from each other are fixedly connected to a spring sheet (4). The outer side of the cable (2) is slidably sleeved with a sealing sleeve (5), and the sealing sleeve (5) is in contact with the spring sheet (4). The outer side of the spring sheet (4) is connected to a nut (6) through a thread. The end of one of the mounting seats (1) away from the spring sheet (4) is fixedly connected to a fixing head (7), and the end of the other mounting seat (1) away from the spring sheet (4) is fixedly connected to a connecting head (8). The fixing head (7) is plugged with a connecting head (8). The upper end of the fixing head (7) contacts a limiting plate (9), and the lower end of the limiting plate (9) is fixedly connected to a limiting block (10). The front and back sides of the limiting plate (9) are fixedly connected to guide plates (11), and the side of the guide plate (11) close to the fixing head (7) is fixedly connected to a guide block (12).

2. The explosion-proof cable sealing joint structure according to claim 1, characterized in that: The interior of the mounting seat (1) is connected with a limit pin (3) via a threaded connection, and the limit pin (3) is in contact with the cable (2).

3. The explosion-proof cable sealing joint structure according to claim 1, characterized in that: The number of the spring pieces (4) of each mounting seat (1) is four, and the four spring pieces (4) are distributed in a ring shape on the mounting seat (1).

4. The explosion-proof cable sealing joint structure according to claim 1, characterized in that: The internal sliding connection of the fixed head (7) is a limited position block (10), and the internal sliding connection of the connecting head (8) is a limited position block (10).

5. The explosion-proof cable sealing joint structure according to claim 1, characterized in that: The number of the guide plates (11) is two, and the two guide plates (11) are symmetrically distributed on the limiting plate (9).

6. The explosion-proof cable sealing joint structure according to claim 1, characterized in that: A guide groove (13) is provided inside the fixed head (7), and a guide block (12) is slidably connected inside the guide groove (13).

7. The explosion-proof cable sealing joint structure according to claim 1, characterized in that: The interior of the limiting plate (9) is connected to a threaded rod (14) via threads, and the threaded rod (14) is connected to the fixing head (7) via threads.

8. The explosion-proof cable sealing joint structure according to claim 7, characterized in that: The upper end of the threaded rod (14) is fixedly connected with a knob (15), and the knob (15) is in contact with the limiting plate (9).

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