Connector with sealing structure
By combining the design of corrugated pipe, straight pipe, reel and rubber sleeve, the problem of connectors being prone to cracking when bent is solved, achieving sealing and convenient plugging, and enhancing the protection of the cable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG KERUI ELECTRONICS CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-05
AI Technical Summary
Existing connectors lack reinforcement capabilities and are prone to creases or cracks when cables are bent, resulting in poor protection.
It adopts a corrugated pipe and straight pipe structure, combined with a reel, rubber sleeve and swivel design, and achieves sealing through bolt reinforcement and rubber sleeve contraction, while using ball bearings to reduce frictional resistance.
It achieves tight wrapping and convenient insertion of the connector when bent, avoiding breakage and enhancing the safety and protection of the cable.
Smart Images

Figure CN224328972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, specifically to a connector with a sealing structure. Background Technology
[0002] The cable consists of copper wire cores forming the main conductor, and is protected by layers of shielding and insulation. It can transmit current or information from the beginning to the end. Most of them are hidden underground, in pipes or inside walls to prevent the cable from being exposed and damaged.
[0003] To extend the transmission distance of a cable, it is necessary to splice two unconnected cables. To avoid exposing the connection point, a connector is required. However, most of these structures lack reinforcement capabilities. If the cable is bent, the external connector is prone to creases or cracks, greatly reducing the protective effect.
[0004] Now, a novel connector with a sealing structure is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a connector with a sealing structure to solve the problem of lack of reinforcing components mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a connector with a sealing structure, comprising a corrugated tube and a straight tube. Straight tubes are fixed to both sides of the outer surface of the corrugated tube, and a tube opening is fixed to the outer side of each straight tube. Limiting blocks are fixed to both sides of the lower outer surface of the corrugated tube, and a through groove is provided between the two sides inside the limiting blocks. A sleeve block is fixed to the side of the bottom of the straight tube, and a slot is provided on the outer side of the sleeve block. A cavity is provided inside the sleeve block, and a reel is movably connected between the front and rear ends of the cavity. A wire harness is wound around the shaft surface of the reel. A threaded groove is provided at the center of the front end of the reel. A screw hole is provided at the front end of the outer side of the sleeve block, and a bolt is threaded into the screw hole.
[0007] Preferably, the bolt passes through the screw hole and enters the threaded groove of the reel, and the wire harness passes through the through groove of the limiting block on both sides and is wound on the reel.
[0008] Preferably, a rubber sleeve is fixed to the outside of the tube opening, and an adhesive layer is applied around the inside of the rubber sleeve, with release paper attached to the surface of the adhesive layer.
[0009] Preferably, the rubber sleeve is arranged concentrically with the pipe opening and the straight pipe, and the rubber sleeve is folded open on the outside of the pipe opening.
[0010] Preferably, a groove is provided transversely on the inner wall of the straight tube, and a rotating shaft is movably connected to both sides of the inside of the groove. A rotating cylinder is fixed at the center between the rotating shafts, and ball bearings are movably embedded on the surface of the rotating cylinder.
[0011] Preferably, the rotating cylinder rotates inside the trough, and the trough and the rotating cylinder are equally spaced on the four sides inside the straight pipe.
[0012] Compared with the prior art, the beneficial effects of this utility model are: the connector with a sealing structure not only prevents the connector from breaking easily when bent and achieves tight wrapping of the cable sheath, but also facilitates cable insertion;
[0013] (1) By winding the wire harness on the surface of the reel shaft, after the connector is plugged into the cable, the corrugated tube at the center wraps around the connection of the two cables. If bending is required, after bending, rotate the internal reel from the back of the sleeve block, pass through the through slot of the limit block and the slot of the sleeve block, tighten the straight tubes on both sides, and use bolts to pass through the screw holes and lock into the threaded groove for reinforcement. This can prevent the straight tubes on both sides of the corrugated tube from resetting and help maintain the state of the cable after bending.
[0014] (2) By fixing a rubber sleeve on the outside of the pipe opening, after the cable passes through the pipe opening, straight pipe and corrugated pipe, peel off the release paper attached to the outside of the rubber layer, and after opening the folded rubber sleeve, the rubber sleeve will automatically shrink and wrap around the outside of the cable. The presence of the rubber layer can also prevent the connector from detaching from the cable sheath. The rubber sleeves on both sides can be tightened to reduce the gap between them and the cable in the center, prevent debris from falling into the connector, and also ensure the safety of the cable.
[0015] (3) By fixing a rotating cylinder at the center between the rotating shafts, when the cable passes through the pipe opening and is inserted into the straight pipe laterally, the outer sheath of the cable will contact the rotating cylinder with balls, which plays a rolling lubricating role. The rotating cylinder can also rotate in place in the groove under the restriction of the rotating shafts on both sides, which helps people reduce frictional resistance. When the cable is plugged in, it can avoid getting stuck in the connector, and the same applies when the cable is pulled out. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the extended frontal cross-sectional structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the curved front cross-sectional structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the front view cross-sectional structure of the folded rubber sleeve of this utility model;
[0019] Figure 4 This is a schematic diagram of the straight pipe side cross-sectional structure of this utility model.
[0020] In the diagram: 1. Corrugated pipe; 2. Wire harness; 3. Limiting block; 4. Straight pipe; 5. Sleeve block; 6. Bolt; 7. Pipe opening; 8. Rubber sleeve; 9. Release paper; 10. Adhesive layer; 11. Groove; 12. Rotary cylinder; 13. Screw hole; 14. Through groove; 15. Groove opening; 16. Reel; 17. Cavity; 18. Threaded groove; 19. Shaft; 20. Ball bearing. Detailed Implementation
[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 An embodiment of this utility model provides a connector with a sealing structure, including a bellows 1 and a straight pipe 4. The straight pipe 4 is fixed to both sides of the outside of the bellows 1, and the pipe opening 7 is fixed to the outside of the straight pipe 4. Limiting blocks 3 are fixed to both sides of the lower outside of the bellows 1, and a through groove 14 is provided between the two sides inside the limiting block 3. A sleeve block 5 is fixed to the side of the bottom of the straight pipe 4, and a groove 15 is provided on the outside of the sleeve block 5. A cavity 17 is provided inside the sleeve block 5, and a reel 16 is movably connected between the front and rear of the cavity 17. A wire harness 2 is wound on the shaft surface of the reel 16. A threaded groove 18 is provided at the center of the front end of the reel 16. A screw hole 13 is provided at the front end of the outer side of the sleeve block 5, and a bolt 6 is threadedly connected in the screw hole 13.
[0023] Bolt 6 passes through screw hole 13 and enters thread groove 18 of reel 16. The wire harness 2 passes through through groove 14 of limit block 3 on both sides and is wound on reel 16.
[0024] Specifically, such as Figure 1 and Figure 2 As shown, after the connector is plugged into the cable, the corrugated tube 1 at the center wraps around the connection of the two cables. If bending is required, after bending, the inner reel 16 is rotated from the back of the sleeve 5, passing through the through slot 14 of the limit block 3 and the slot 15 of the sleeve 5, tightening the straight tubes 4 on both sides. The bolts 6 are then passed through the screw holes 13 and locked into the threaded grooves 18 for reinforcement, which can prevent the straight tubes 4 on both sides of the corrugated tube 1 from resetting.
[0025] A rubber sleeve 8 is fixed to the outside of the tube opening 7, and an adhesive layer 10 is applied around the inside of the rubber sleeve 8. Release paper 9 is attached to the surface of the adhesive layer 10. The rubber sleeve 8, tube opening 7 and straight tube 4 are arranged in concentric circles. The rubber sleeve 8 is folded open on the outside of the tube opening 7.
[0026] Specifically, such as Figure 1 and Figure 3 As shown, after the cable passes through the conduit 7, the straight pipe and the corrugated pipe 1, the release paper 9 attached to the outside of the adhesive layer 10 is peeled off. After the folded rubber sleeve 8 is opened, the rubber sleeve 8 will automatically shrink and wrap around the outside of the cable. The presence of the adhesive layer 10 can also prevent the connector from detaching from the cable sheath. The rubber sleeves on both sides can be tightened to reduce the gap between them and the cable at the center.
[0027] A groove 11 is horizontally arranged on the inner wall of the straight pipe 4, and a rotating shaft 19 is movably connected to both sides of the inside of the groove 11. A rotating cylinder 12 is fixed at the center between the rotating shafts 19, and a ball bearing 20 is movably embedded on the surface of the rotating cylinder 12. The rotating cylinder 12 rotates inside the groove 11. The groove 11 and the rotating cylinder 12 are equally spaced on the four sides inside the straight pipe 4.
[0028] Specifically, such as Figure 1 and Figure 4 As shown, when the cable passes horizontally through the pipe opening 7 and is inserted into the straight pipe 4, the outer sheath of the cable will contact the rotating drum 12 with ball bearings 20, which plays a role in rolling lubrication. The rotating drum 12 can also rotate in place in the groove 11 under the restriction of the rotating shafts 19 on both sides, which helps to reduce frictional resistance and prevents the cable from getting stuck in the connector during plug-in installation.
[0029] Working principle: When the cable passes laterally through the opening 7 and is inserted into the straight pipe 4, the cable sheath will contact the rotating drum 12 with ball bearings 20, providing rolling lubrication. The rotating drum 12 can also rotate in place within the groove 11 under the constraint of the two rotating shafts 19, helping to reduce frictional resistance. After the cable passes through the opening 7, the straight pipe, and the corrugated pipe 1, the release paper 9 attached to the outside of the adhesive layer 10 is peeled off, and the folded rubber sleeve 8 is opened. The rubber sleeve 8 will automatically retract and wrap around the outside of the cable. The presence of 0 also prevents the connector from detaching from the cable sheath. The rubber sleeves 8 on both sides can be tightened to reduce the gap between them and the cable at the center. After the connector is inserted into the cable, the corrugated tube 1 at the center wraps around the connection of the two cables. If bending is required, after bending, the internal reel 16 is rotated from the back of the sleeve 5, passing through the through groove 14 of the limit block 3 and the slot 15 of the sleeve 5, tightening the straight tubes 4 on both sides. The bolts 6 are used to pass through the screw hole 13 and lock into the threaded groove 18 for reinforcement, which can prevent the straight tubes 4 on both sides of the corrugated tube 1 from resetting.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A connector with a sealing structure, comprising a bellows (1) and a straight tube (4), characterized in that: Straight pipes (4) are fixed on both sides of the outside of the corrugated pipe (1), and pipe openings (7) are fixed on the outside of the straight pipes (4). Limiting blocks (3) are fixed on both sides of the lower part of the corrugated pipe (1), and through grooves (14) are provided between the two sides inside the limiting blocks (3). A sleeve block (5) is fixed on the side of the bottom of the straight pipe (4), and a groove (15) is provided on the outside of the sleeve block (5). A cavity (17) is provided inside the sleeve block (5), and a reel (16) is movably connected between the front and rear of the cavity (17). A wire harness (2) is wound on the shaft surface of the reel (16). A threaded groove (18) is provided at the center of the front end of the reel (16). A screw hole (13) is provided at the front end of the outer side of the sleeve block (5), and a bolt (6) is threaded in the screw hole (13).
2. A connector with a sealing structure according to claim 1, characterized in that: The bolt (6) passes through the screw hole (13) and enters the threaded groove (18) of the reel (16). The wire harness (2) passes through the through groove (14) of the limiting block (3) on both sides and is wound on the reel (16).
3. A connector with a sealing structure according to claim 1, characterized in that: A rubber sleeve (8) is fixed to the outside of the tube opening (7), and an adhesive layer (10) is applied around the inside of the rubber sleeve (8). Release paper (9) is attached to the surface of the adhesive layer (10).
4. A connector with a sealing structure according to claim 3, characterized in that: The rubber sleeve (8) is arranged concentrically with the pipe opening (7) and the straight pipe (4), and the rubber sleeve (8) is folded open on the outside of the pipe opening (7).
5. A connector with a sealing structure according to claim 1, characterized in that: The inner wall of the straight tube (4) is provided with a groove (11) in the horizontal direction, and the two sides inside the groove (11) are respectively movably connected with a rotating shaft (19). A rotating cylinder (12) is fixed at the center between the rotating shafts (19), and a ball bearing (20) is movably embedded on the surface of the rotating cylinder (12).
6. A connector with a sealing structure according to claim 5, characterized in that: The rotating cylinder (12) rotates inside the trough (11), and the trough (11) and the rotating cylinder (12) are equally spaced on the four sides inside the straight pipe (4).