Moistureproof sealing structure of cable joint

Abstract

The utility model relates to the technical field of cable joint structures, in particular to a moistureproof sealing structure of a cable joint, which comprises a first cable, a second cable and a lower junction box, the second cable is wound at one end of the first cable, the lower junction box is mounted at the joint of the first cable and the second cable, an upper junction box is mounted on the upper surface of the lower junction box, and the upper junction box is mounted on the lower surface of the lower junction box. The upper junction box is in contact with the surface of the first cable, the upper junction box is in contact with the surface of the second cable, a filling hole is formed in the upper surface of the upper junction box, a sealing plug is inserted into the inner wall, located in the filling hole, of the upper junction box, a reinforcing assembly is arranged on the surface of the lower junction box, and the reinforcing assembly comprises a lantern ring. By arranging the reinforcing assembly and the restraining assembly, the structural strength of the connector structure is improved, then the problem that the connector structure is weak and prone to deformation and damage in the using process is solved, and the stability of the connector structure is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable joint structure technical field especially, relates to a kind of damp-proof sealing structure of cable joint. BACKGROUND

[0002] Cable joint structure is the important component for connecting cable, it is usually composed of joint body, connecting terminal, insulating sheath etc., joint body provides the frame and support of connection, connecting terminal realizes the electrical connection between different cables, and insulating sheath plays the role of protecting connection site, preventing electric leakage and insulation.

[0003] Prior art such as the utility model with publication number CN219371513U, the patent discloses a kind of damp-proof joint cable, the patent uses two cables and the joint of connecting two cables, the joint includes shell, two hollow terminal posts arranged in shell, piston ring fixedly sleeved on the outer wall of terminal post, end cap sleeved on terminal post and sealedly connected with the two ends of shell and curved conductive sheet;Piston ring is attached to the inner wall of shell and can be axially moved along the inner wall of shell;Two terminal posts are respectively sealedly connected with two cables deeply into its interior, and conductive sheet is inserted between two terminal posts;Conductive sheet is fixedly connected with terminal post and connected with cable, solve the need when splicing the skin of cable splicing end is stripped, so as to connect, but the cable after stripping skin loses the damp-proof protection of damp-proof layer and the tensile protection of tensile layer, so that the joint does not have damp-proof and tensile function, leading to joint prone to damp and be pulled off, affect the line conductivity problem.

[0004] In the process of connecting cable joint by means of connecting structure, there is the existing connecting structure such as the above-mentioned only supporting by its own shell, when the shell is subjected to greater external load, the shell is easy to be deformed under the action of external force, when the shell is in the deformed state for a long time, the structure of the shell will be damaged, in turn leading to structure damage and causing the problem of reducing protection effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings that the structure of shell is damaged when the shell is in the deformed state for a long time in prior art, in turn leading to structure damage and causing the problem of reducing protection effect, and provides a kind of damp-proof sealing structure of cable joint.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of damp-proof sealing structure of cable joint, including cable one, cable two and lower junction box, the cable two is wound in the one end of cable one, the lower junction box is installed in the junction of cable one and cable two, the upper surface of the lower junction box is equipped with upper junction box, the surface of the upper junction box and cable one is contacted, the surface of the upper junction box and cable two is contacted, the upper surface of the upper junction box is equipped with filling hole, the inner wall of filling hole is inserted with sealing plug in the upper junction box, the surface of the lower junction box is provided with reinforcing assembly, the reinforcing assembly includes collar, the surface of the collar and lower junction box is sleeved, the outer circumference of the collar is fixedly connected with limiting frame, the side surface of the limiting frame is rotatably connected with fastening sleeve, the side surface of the limiting frame is equipped with slot, the inner wall of the limiting frame is inserted with connecting rod in slot, the surface of the connecting rod is sleeved with support frame, the side of support frame close to lower junction box is fixedly connected with clamping plate.

[0007] Preferably, the collar is sleeved with the surface of the upper junction box, the fastening sleeve is threadedly connected with the surface of the lower junction box, and the fastening sleeve is threadedly connected with the surface of the upper junction box. The position of the upper junction box and the lower junction box can be locked by the fastening sleeve to ensure that the upper junction box and the lower junction box are in a closed state after installation.

[0008] Preferably, the number of connecting rods is four, and the four connecting rods are arranged in a circumferential array about the collar. The position of the support frame can be supported by the connecting rod to ensure that the position of the clamping plate can be constrained by the support frame.

[0009] Preferably, the clamping plate is in contact with the surface of the lower junction box, and the clamping plate is in contact with the surface of the upper junction box. The lower junction box and the upper junction box can be clamped in the locked state by the clamping plate to ensure the stability of the lower junction box and the upper junction box during use.

[0010] Preferably, the surface of the connecting rod is provided with a constraint assembly, the constraint assembly includes a positioning ring, the positioning ring is fixedly connected with the surface of the connecting rod, the surface of the connecting rod is sleeved with an extrusion disc, and the side of the extrusion disc away from the positioning ring is fixedly connected with a limiting threaded sleeve. The installation position of the support frame can be limited by the positioning ring to ensure that the support frame is located at the central part of the lower junction box after installation.

[0011] Preferably, the positioning ring is in contact with the side surface of the support frame, and the extrusion disc is in contact with the side surface of the support frame. The position of the support frame is limited in the specified area by the extrusion disc under the action of the limiting threaded sleeve in cooperation with the positioning ring.

[0012] Preferably, the limiting threaded sleeve is threaded connected with the surface of the connecting rod, and the position of the extrusion disc is locked through the cooperation of the limiting threaded sleeve and the connecting rod, so that the clamping effect of the extrusion disc is ensured.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] In the utility model, the structure strength of the joint structure is increased through the reinforcing assembly and the constraint assembly, thereby reducing the problem that the joint structure is relatively weak and is prone to deformation damage in use, and further improving the stability of the joint structure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A perspective structural schematic view of a moisture-proof sealing structure of a cable joint is provided for the utility model;

[0016] Figure 2 A bottom view structural schematic view of a moisture-proof sealing structure of a cable joint is provided for the utility model;

[0017] Figure 3 A partial structural schematic view of a moisture-proof sealing structure of a cable joint is provided for the utility model;

[0018] Figure 4 A structural schematic view of the moisture-proof sealing structure of the cable joint in the middle A of the utility model is provided; Figure 3

[0019] Figure 5 A structural schematic view of the moisture-proof sealing structure of the cable joint in the middle B of the utility model is provided. Figure 3

[0020] LEGEND:

[0021] 1, cable one; 2, cable two; 3, lower junction box; 4, upper junction box; 5, sealing plug; 6, reinforcing assembly; 61, collar; 62, limiting frame; 63, fastening sleeve; 64, insertion slot; 65, connecting rod; 66, support frame; 67, clamping plate; 7, constraint assembly; 71, positioning ring; 72, extrusion disc; 73, limiting threaded sleeve. DETAILED DESCRIPTION

[0022] Please refer to Figures 1-5 ​​The utility model provides a technical scheme: a damp proof sealing structure of cable joint, including cable one 1, cable two 2 and lower junction box 3, cable two 2 is wound in one end of cable one 1, lower junction box 3 is installed in the junction of cable one 1 and cable two 2, the upper surface of lower junction box 3 is installed with upper junction box 4, and the surface of upper junction box 4 is contacted with cable one 1, and the surface of upper junction box 4 is contacted with cable two 2, and the upper surface of upper junction box 4 is provided with filling hole, and the inner wall of filling hole of upper junction box 4 is inserted with sealing plug 5, and the surface of lower junction box 3 is provided with reinforcing assembly 6, and the surface of connecting rod 65 is provided with constraint assembly 7.

[0023] The reinforcing assembly 6 and the constraint assembly 7 will be described in detail below.

[0024] In the embodiment: reinforcing assembly 6 includes the thimble 61, and the surface of the thimble 61 is sleeved with lower junction box 3, and the outer circumference of the thimble 61 is fixedly connected with the limiting frame 62, and the side surface of the limiting frame 62 is rotatably connected with the fastening sleeve 63, and the side surface of the limiting frame 62 is provided with the slot 64, and the inner wall of the slot 64 of the limiting frame 62 is inserted with the connecting rod 65, and the surface of the connecting rod 65 is sleeved with the support frame 66, and one side of the support frame 66 close to lower junction box 3 is fixedly connected with the clamping plate 67.

[0025] Specifically, the thimble 61 is sleeved with the surface of the upper junction box 4, the fastening sleeve 63 is threadedly connected with the surface of the lower junction box 3, and the fastening sleeve 63 is threadedly connected with the surface of the upper junction box 4, and the position of the upper junction box 4 and the lower junction box 3 can be locked by the fastening sleeve 63, to ensure that the upper junction box 4 and the lower junction box 3 are in a closed state after installation.

[0026] Specifically, the number of connecting rods 65 is four, and the four connecting rods 65 are arranged in a circumferential array about the thimble 61.

[0027] In the embodiment: the position of the support frame 66 can be supported by the connecting rod 65, to ensure that the position of the clamping plate 67 can be constrained by the support frame 66.

[0028] Specifically, the clamping plate 67 is in contact with the surface of the lower junction box 3, and the clamping plate 67 is in contact with the surface of the upper junction box 4, and the lower junction box 3 and the upper junction box 4 can be clamped in the locked state by the clamping plate 67, to ensure the stability of the lower junction box 3 and the upper junction box 4 during use.

[0029] In the embodiment: the constraint assembly 7 includes a positioning ring 71, the positioning ring 71 is fixedly connected with the surface of the connecting rod 65, the surface of the connecting rod 65 is sleeved with an extrusion disc 72, and the side, away from the positioning ring 71, of the extrusion disc 72 is fixedly connected with a limiting threaded sleeve 73.

[0030] In the embodiment, the mounting position of the support frame 66 is limited by the positioning ring 71 to ensure that the support frame 66 is in the central part of the lower junction box 3 after installation.

[0031] Specifically, the positioning ring 71 is in contact with the side surface of the support frame 66, and the extrusion disc 72 is in contact with the side surface of the support frame 66. The position of the support frame 66 is limited in the specified area by the extrusion disc 72 under the action of the limiting threaded sleeve 73 in cooperation with the positioning ring 71.

[0032] Specifically, the limiting threaded sleeve 73 is threadedly connected with the surface of the connecting rod 65.

[0033] In the embodiment, the position of the extrusion disc 72 is locked by the cooperation of the limiting threaded sleeve 73 and the connecting rod 65 to ensure the clamping effect of the extrusion disc 72.

[0034] Working principle: after winding the cable two 2 on the surface of the cable one 1, winding a circle of electrician tape at the connection part, after winding, putting the connection part into the lower junction box 3, covering the upper junction box 4, then sleeving the collar 61 on the surface of the lower junction box 3 and the upper junction box 4, and fastening the sleeve 63 to the surface of the upper junction box 4 and the lower junction box 3 with the collar 61, rotating the fastening sleeve 63, and gradually rotating the fastening sleeve 63 on the upper junction box 4 and the lower junction box 3, when the fastening sleeve 63 is tightened, inserting the connecting rod 65 into the support frame 66, when the positioning ring 71 is in contact with the support frame 66, sleeving the extrusion disc 72 and the limiting threaded sleeve 73 on the connecting rod 65, when the limiting threaded sleeve 73 moves to the threaded area, rotating the limiting threaded sleeve 73 clockwise, the limiting threaded sleeve 73 pushes the extrusion disc 72, when the limiting threaded sleeve 73 is tightened, the extrusion disc 72 abuts against the surface of the support frame 66, and the support frame 66 is clamped by the positioning ring, after the above operation, inserting the connecting rod 65 into the slot 64, and limiting the clamping plate 67 on the outer arc surface of the lower junction box 3 and the upper junction box 4 by the connecting rod 65 and the support frame 66, when all the clamping plates 67 are installed, installing the collar 61 on the surface of the lower junction box 3 and the upper junction box 4 on the other side according to the above steps, and supporting the other end of the connecting rod 65, then the processing operation of the junction box is completed, after the operation, opening the sealing plug 5, and injecting the melted paraffin into the junction box, and reinstalling the sealing plug 5. By arranging the reinforcing assembly 6 and the constraint assembly 7, the structural strength of the joint structure is increased, thereby reducing the problem that the joint structure is relatively weak and is easy to be deformed and damaged during use, and further improving the stability of the joint structure.

Claims

1. A moisture-proof sealing structure of a cable joint, comprising a cable one (1), a cable two (2) and a lower junction box (3), characterized in that: The cable two (2) is wound on one end of the cable one (1), the lower junction box (3) is installed at the joint of the cable one (1) and the cable two (2), the upper surface of the lower junction box (3) is provided with the upper junction box (4), the upper junction box (4) is in contact with the surface of the cable one (1), the upper junction box (4) is in contact with the surface of the cable two (2), the upper surface of the upper junction box (4) is provided with the filling hole, the sealing plug (5) is inserted in the inner wall of the filling hole, the surface of the lower junction box (3) is provided with the reinforcing assembly (6), the reinforcing assembly (6) comprises the sleeve ring (61), the sleeve ring (61) is sleeved with the surface of the lower junction box (3), the outer circumference of the sleeve ring (61) is fixedly connected with the limiting frame (62), the side surface of the limiting frame (62) is rotatably connected with the fastening sleeve (63), the side surface of the limiting frame (62) is provided with the insertion slot (64), the limiting frame (62) is provided with the connecting rod (65) inserted in the inner wall of the insertion slot (64), the surface of the connecting rod (65) is sleeved with the supporting frame (66), and the side of the supporting frame (66) close to the lower junction box (3) is fixedly connected with the clamping plate (67).

2. A moisture seal for a cable splice according to claim 1, wherein: The sleeve ring (61) is sleeved with the surface of the upper junction box (4), the fastening sleeve (63) is threadedly connected with the surface of the lower junction box (3), and the fastening sleeve (63) is threadedly connected with the surface of the upper junction box (4).

3. The moisture seal for a cable splice of claim 1, wherein: The number of the connecting rod (65) is four, and the four connecting rods (65) are arranged in a circumferential array about the sleeve ring (61).

4. The moisture seal for a cable splice of claim 1, wherein: The clamping plate (67) is in contact with the surface of the lower junction box (3), and the clamping plate (67) is in contact with the surface of the upper junction box (4).

5. The moisture seal for a cable splice of claim 1, wherein: The surface of the connecting rod (65) is provided with the constraint assembly (7), the constraint assembly (7) comprises the positioning ring (71), the positioning ring (71) is fixedly connected with the surface of the connecting rod (65), the surface of the connecting rod (65) is sleeved with the extrusion disc (72), and the side, away from the positioning ring (71), of the extrusion disc (72) is fixedly connected with the limiting threaded sleeve (73).

6. A moisture seal for a cable splice according to claim 5, wherein: The positioning ring (71) is in contact with the side surface of the supporting frame (66), and the extrusion disc (72) is in contact with the side surface of the supporting frame (66).

7. A moisture seal for a cable splice according to claim 5, wherein: The limiting threaded sleeve (73) is threadedly connected with the surface of the connecting rod (65).

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