Anti-drop wear-resistant wire and cable connecting line

Abstract

The utility model relates to a kind of anti-falling wear-resistant electric cable connecting wire in the field of electric cable, including conductor, and the plug shell is set to conductor corresponding end;Plug shell outer end center is provided with conducting terminal, and conducting terminal inner end is contacted with conductor corresponding end, and conducting terminal contact outer end is equipped with arc contact protrusion;Conductor outer circumferential surface is symmetrically provided with elastic locking boss, and the outer surface of elastic locking boss is arc guiding surface, and the threaded connection of conductor outer circumferential surface has annular lock sleeve, and annular lock sleeve outside is adapted to locking ring, and locking ring is connected with socket assembly, and socket assembly surface is provided with the locking groove of adapting with elastic locking boss;Elastic locking boss and locking groove cooperate to realize preliminary locking, and annular lock sleeve and locking ring are adapted to form secondary locking, and double locking effect effectively avoids that plug assembly and socket assembly are loose or fall off under the influence of external force, and the stability and reliability of connecting wire connection are improved.

Description

Technical Field

[0001] This utility model relates to the field of wires and cables, specifically to a non-detachable and wear-resistant wire and cable connector. Background Technology

[0002] As key components for power transmission and signal conduction, wire and cable connectors are widely used in various fields such as industrial production, household appliances, communication equipment, and transportation. In actual use scenarios, connectors often face complex situations such as frequent plugging and unplugging, external pulling forces, and environmental friction. Their connection stability and durability directly affect the normal operation of related equipment and even the safety during use. Therefore, there has always been a continuous demand in the industry for the locking effect and wear resistance and tensile strength of wire and cable connectors.

[0003] In existing technologies, wire and cable connectors are typically equipped with corresponding locking structures to secure the plug and socket assemblies, while using plastic sheaths to protect the internal conductors. However, these existing locking structures are mostly single-locking designs, such as using only boss engagement or simple threaded connections for fixation. Such structures are prone to insufficient locking force when subjected to external impacts or accidental pulling, leading to loosening of the plug and socket assemblies, and in severe cases, detachment, which greatly affects the stability of power transmission or signal conduction. On the other hand, the plastic sheaths used in existing connectors generally have poor wear resistance, and the connection between the plug housing and the sheath is mostly a direct sleeve or simple adhesive treatment. This connection method has weak tensile strength, and during long-term use, the sheath is prone to wear due to friction, and the connection is also prone to damage due to external pulling. This not only shortens the overall service life of the connector, but also exposes the internal conductors due to damage to the outer sheath, causing safety hazards such as leakage. Utility Model Content

[0004] The purpose of this utility model is to solve the above defects and provide a non-detachable and wear-resistant wire and cable connector. The elastic locking boss and the matching locking groove opened on the socket assembly cooperate with each other. The annular locking sleeve is threadedly connected to the conductor and is adapted to the locking ring. The double locking prevents loosening and solves the technical problem of loosening of the plug assembly and socket assembly in the prior art.

[0005] The objective of this utility model is achieved through the following means:

[0006] A type of anti-detachment and wear-resistant wire and cable connector includes a conductor, the conductor being wrapped with a modified polyvinyl chloride (PVC) jacket. The modified PVC jacket has uniformly applied anti-slip and wear-resistant textures on its outer surface. A plug housing is attached to the corresponding end of the modified PVC jacket. A heat-shrinkable rubber sleeve connects the plug housing and the modified PVC jacket. One end of the heat-shrinkable rubber sleeve is fixedly bonded to the plug housing, and the other end of the heat-shrinkable rubber sleeve is heat-fused to the modified PVC jacket. A conductive terminal is attached to the center of the outer end of the plug housing. The inner end of the conductive terminal contacts the corresponding end of the conductor. An arc-shaped contact protrusion is provided on the outer contact end of the conductive terminal. An elastic locking boss is symmetrically provided on the outer circumference of the conductor. The outer surface of the elastic locking boss is designed with an arc-shaped guide surface. An annular locking sleeve is threaded onto the outer circumference of the conductor. A locking ring is adapted to the outside of the annular locking sleeve. A socket assembly is connected to the locking ring. A locking groove adapted to the elastic locking boss is formed on the surface of the socket assembly.

[0007] During connection, pushing the plug housing causes the elastic locking protrusion to engage with the locking groove of the socket assembly, achieving initial locking;

[0008] The rotating annular locking sleeve moves along the outer circumference of the conductor, causing the front end of the annular locking sleeve to abut and lock against the locking ring, forming a secondary locking.

[0009] When unlocking, the annular locking sleeve is rotated in the opposite direction, causing it to move in the opposite direction along the outer circumference of the conductor, thus releasing the abutment and locking state between the annular locking sleeve and the locking ring.

[0010] Pulling the plug housing causes the elastic locking protrusion to disengage from the locking groove of the socket assembly, thus separating the plug assembly from the socket assembly.

[0011] During the conduction process, the arc-shaped contact protrusion of the conductive terminal contacts the conductive component inside the socket assembly to achieve power transmission and signal transmission.

[0012] Furthermore, the outer circumference of the conductor is symmetrically provided with a threaded hole, and the inner cavity of the threaded hole is threaded with a threaded stud.

[0013] Symmetrical threaded holes on the outer circumference of the conductor allow for a more balanced installation of the threaded studs, ensuring stable conductor stress. The threaded connection between the threaded holes and the threaded studs enables a secure and detachable connection, facilitating subsequent maintenance and replacement of related components. The symmetrical design also improves the overall assembly precision.

[0014] Furthermore, the elastic locking boss is located at the center of the threaded stud, and anti-slip grooves are evenly provided on the outer circumferential surface of the elastic locking boss.

[0015] The elastic locking boss is located at the center of the bolt, which can play a central guiding role in the installation of the bolt and improve the installation accuracy. The anti-slip grooves evenly distributed on its outer circumference can increase the friction between the hand or tool and the elastic locking boss during operation, so as to avoid slippage and make the bolt assembly and disassembly operations more convenient and labor-saving. The elastic material also provides a certain locking buffer after the bolt is installed in place, reducing the risk of loosening.

[0016] Furthermore, elastic positioning balls are evenly added to the side of the fitting end of the annular locking sleeve, and the elastic positioning balls are designed in a hemispherical shape.

[0017] The elastic positioning balls evenly distributed on the sides of the ring-shaped locking sleeve can provide initial positioning guidance during the bonding process between the ring-shaped locking sleeve and other components, preventing misalignment during bonding. The elastic positioning balls adopt a hemispherical design, which reduces contact resistance during bonding, facilitates their smooth entry into the subsequent positioning structure, and the hemispherical surface is not prone to wear, extending the service life of the components. The evenly distributed design makes the force on the ring-shaped locking sleeve more uniform during bonding, improving the overall bonding stability.

[0018] Furthermore, the locking ring has an elastic positioning groove on its fitting end side. The inner cavity of the elastic positioning groove has a hemispherical cross-section, and the elastic positioning ball is engaged with the elastic positioning groove.

[0019] The elastic positioning groove on the side of the locking ring's mating end has a hemispherical cross-section that matches the elastic positioning ball, enabling precise engagement between the elastic positioning ball and the elastic positioning groove. This allows for quick positioning and fixing of the locking ring and the annular locking sleeve, preventing relative displacement after they are mated. The snap-fit ​​connection method allows for initial fixing without additional tools, simplifying the assembly process. At the same time, the elastic fit can absorb minor errors during assembly, improving the assembly's fault tolerance.

[0020] Furthermore, a connecting hole is provided on the side of the fitting end of the locking ring. The inner cavity of the connecting hole has a convex cross-section. A bolt is added to the inner cavity of the connecting hole. The head of the bolt fits against the inner wall of the connecting hole. The locking ring is connected to the socket assembly by the bolt.

[0021] The connecting hole features a convex cross-section to accommodate the bolt head, ensuring it fits snugly against the inner wall of the hole. This effectively prevents the bolt head from protruding from the locking ring surface, thus preventing it from affecting the tight fit between the locking ring and the annular locking sleeve and guaranteeing the overall structural fit accuracy. The locking ring is connected to the socket assembly via bolts. Bolt connections are characterized by strong connections and high load-bearing capacity, ensuring the stability of the connection between the locking ring and the socket assembly, while also facilitating subsequent disassembly and maintenance.

[0022] The beneficial effects of this utility model are: the elastic locking boss and the matching locking groove opened on the socket assembly cooperate with each other to achieve the initial locking of the plug assembly and the socket assembly. At the same time, the annular locking sleeve is connected to the conductor thread and is adapted to the locking ring to form a secondary locking structure. The double locking effect effectively prevents the plug assembly and the socket assembly from loosening or falling off under the influence of external force, and improves the stability and reliability of the connection of the connecting wire.

[0023] The modified PVC jacket itself has a certain wear resistance. The uniform anti-slip and wear-resistant texture added to its exterior further enhances the wear resistance of the connecting wire. The heat-shrinkable rubber sleeve connecting the plug shell and the modified PVC jacket improves the overall tensile strength of the connecting wire, reduces the damage at the connection point and the jacket, extends the service life of the connecting wire, and reduces the safety hazards caused by the damage to the outer sheath.

[0024] The inner end of the conductive terminal contacts the corresponding end of the conductor, ensuring a basic path for current and signal transmission. The arc-shaped contact protrusion on the outer end of the contact terminal increases the contact area between the conductive terminal and the conductive components inside the socket assembly, reducing contact resistance, making the power supply more stable, the signal transmission more reliable, and improving the performance of the connection cable. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of an anti-loosening and wear-resistant wire and cable connection wire according to the present invention;

[0026] Figure 2 This is a schematic diagram of the overall right-side view of the anti-detachment and wear-resistant wire and cable connection wire of this utility model;

[0027] Figure 3 This is a schematic cross-sectional view of the screw hole structure of an anti-loosening and wear-resistant wire and cable connector according to the present invention;

[0028] Figure 4 This is a schematic diagram of the threaded stud and its connection structure for an anti-loosening and wear-resistant wire and cable connector according to this utility model.

[0029] Figure 5 This is a schematic diagram of the annular locking sleeve and its connection structure for an anti-loosening and wear-resistant wire and cable connector according to this utility model.

[0030] Figure 6 This is a schematic diagram of the right side view of the locking ring structure of the anti-detachment and wear-resistant wire and cable connector of this utility model;

[0031] In the diagram, 1. Conductor; 2. Modified PVC jacket; 3. Anti-slip and wear-resistant texture; 4. Plug housing; 5. Heat-shrinkable rubber sleeve; 6. Conductive terminal; 7. Ring locking sleeve; 8. Threaded hole; 9. Threaded stud; 10. Elastic locking boss; 11. Anti-slip groove; 12. Elastic positioning ball; 13. Locking ring; 14. Elastic positioning groove; 15. Connecting hole; 16. Bolt. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] In this embodiment, refer to Figures 1-6 The specific implementation of an anti-detachment and wear-resistant wire and cable connector includes a conductor 1, the conductor 1 being wrapped with a modified polyvinyl chloride (PVC) jacket 2, the modified PVC jacket 2 having uniformly applied anti-slip and wear-resistant textures 3, a plug housing 4 being attached to the corresponding end of the modified PVC jacket 2, and a heat-shrinkable rubber sleeve 5 connecting the plug housing 4 and the modified PVC jacket 2. One end of the heat-shrinkable rubber sleeve 5 is fixedly bonded to the plug housing 4, and the other end of the heat-shrinkable rubber sleeve 5 is heat-fused to the modified PVC jacket 2. A conductive terminal 6 is added to the center of the outer end of the head housing 4. The inner end of the conductive terminal 6 is in contact with the corresponding end of the conductor 1. An arc-shaped contact protrusion is provided on the outer contact end of the conductive terminal 6. An elastic locking boss 10 is symmetrically provided on the outer circumference of the conductor 1. The outer surface of the elastic locking boss 10 is designed with an arc-shaped guide surface. An annular locking sleeve 7 is threaded to the outer circumference of the conductor 1. A locking ring 13 is adapted to the outside of the annular locking sleeve 7. A socket assembly is connected to the locking ring 13. A locking groove adapted to the elastic locking boss 10 is opened on the surface of the socket assembly.

[0034] The initial locking of the elastic locking boss 10 and the locking groove, combined with the secondary locking of the annular locking sleeve 7 and the locking ring 13, forms a double anti-dislodgement structure, which can effectively resist the influence of external force pulling and vibration, and prevent the plug assembly and socket assembly from loosening or falling off, significantly improving the connection reliability. It is suitable for industrial and automotive scenarios with frequent vibration.

[0035] The modified PVC jacket 2 outside the conductor 1 has a good wear resistance base. The uniformly arranged anti-slip and wear-resistant texture 3 on its exterior further enhances the wear resistance of the cable body. At the same time, the heat-shrinkable rubber sleeve 5 between the plug shell 4 and the modified PVC jacket 2, through the connection method of fixed bonding and hot melt bonding, strengthens the wear resistance and tensile strength of the connection, extends the overall service life of the product, and reduces the risk of safety hazards such as leakage and short circuit caused by damage to the outer sheath.

[0036] The anti-detachment structure is integrated into the conductor 1, plug housing 4 and socket assembly, eliminating the need for additional complex components, reducing manufacturing difficulty and keeping costs under control; the insertion and removal process can be completed by simply rotating the ring lock sleeve 7 to lock and unlock, which is simple and easy to promote and apply.

[0037] The arc-shaped contact protrusion on the outer end of the conductive terminal 6 increases the contact area with the conductive components inside the socket assembly, reduces contact resistance, and ensures the stability of power and signal transmission; at the same time, the sealing structure can achieve good waterproof and dustproof effects, broadening the range of applicable environments for the product.

[0038] like Figure 2 and Figure 3 As shown, a threaded hole 8 is symmetrically opened on the outer circumference of the conductor 1, and a threaded post 9 is threadedly connected to the inner cavity of the threaded hole 8.

[0039] An external force drives the connecting rod 9 to rotate, enabling the connecting rod 9 to be installed and disassembled in connection with the connecting hole 8.

[0040] like Figure 4 As shown, the elastic locking boss 10 is located at the center of the bolt 9, and the outer circumferential surface of the elastic locking boss 10 is uniformly provided with anti-slip grooves 11.

[0041] The anti-slip groove 11 allows the screw thread 9 to rotate externally via the elastic locking boss 10, enabling the screw thread 9 to be disassembled and assembled with the screw hole 8.

[0042] like Figure 5 and Figure 6 As shown, elastic positioning balls 12 are evenly added to the side of the fitting end of the ring-shaped locking sleeve 7, and the elastic positioning balls 12 are hemispherical in shape.

[0043] When the annular locking sleeve 7 aligns with the corresponding mating structure, it moves the annular locking sleeve 7, causing the elastic positioning ball 12 to move closer to the mating surface along with the annular locking sleeve 7 and undergo adaptive deformation.

[0044] The locking ring 13 has an elastic positioning groove 14 on its fitting end side. The inner cavity of the elastic positioning groove 14 has a hemispherical cross-section, and the elastic positioning ball 12 is engaged with the elastic positioning groove 14.

[0045] When the locking ring 13 is in contact with the annular locking sleeve 7, it moves the locking ring 13 toward the annular locking sleeve 7, causing the elastic positioning ball 12 on the annular locking sleeve 7 to enter the elastic positioning groove 14 corresponding to the locking ring 13, thus achieving a locking connection between the two. When the locking ring 13 separates from the annular locking sleeve 7, the annular locking sleeve 7 can be rotated in the opposite direction. Due to the elastic design of the elastic positioning ball 12, it will not affect the separation operation between the elastic positioning ball 12 and the elastic positioning groove 14.

[0046] The locking ring 13 also has a connecting hole 15 on the side of the mating end. The inner cavity of the connecting hole 15 has a convex cross-section. A bolt 16 is added to the inner cavity of the connecting hole 15. The head of the bolt 16 fits into the inner wall of the connecting hole 15. The locking ring 13 is connected to the socket assembly through the bolt 16.

[0047] By using a tool to rotate the bolt 16, the bolt 16 can move within the cavity of the connection hole 15, thereby enabling the connection or disassembly of the locking ring 13 and the socket assembly.

[0048] The usage process of the anti-loosening and wear-resistant wire and cable connector in this embodiment is as follows: the bolt 16 is rotated by a tool, so that the bolt 16 moves in the inner cavity of the connection hole 15, thereby realizing the connection and fixation between the locking ring 13 and the socket assembly.

[0049] The screw thread 9 is rotated by an external force, so that the screw thread 9 is threaded into the screw hole 8 on the outer circumference of the conductor 1, thus completing the installation of the screw thread 9. The elastic locking boss 10 is installed in place along with the screw thread 9.

[0050] Pushing the plug housing 4 causes the elastic locking boss 10 to move, so that the elastic locking boss 10 is engaged in the locking groove of the socket assembly, thus achieving the initial locking of the plug assembly and the socket assembly.

[0051] The rotating annular locking sleeve 7 moves along the outer circumference of the conductor 1. The annular locking sleeve 7 moves the elastic positioning ball 12 close to the locking ring 13 together, so that the elastic positioning ball 12 enters the corresponding elastic positioning groove 14 of the locking ring 13. At the same time, the front end of the annular locking sleeve 7 abuts against the locking ring 13 to form a secondary locking.

[0052] Power and signal transmission are achieved by the arc-shaped contact protrusion of conductive terminal 6 contacting the conductive component inside the socket assembly;

[0053] When unlocking is required, the annular locking sleeve 7 is rotated in the opposite direction to move it in the opposite direction along the outer circumference of the conductor 1. The elastic positioning ball 12 is disengaged from the elastic positioning groove 14 along with the annular locking sleeve 7, releasing the abutment and locking state between the annular locking sleeve 7 and the locking ring 13.

[0054] Pulling the plug housing 4 moves the elastic locking boss 10, causing the elastic locking boss 10 to disengage from the locking groove of the socket assembly, thus completing the separation of the plug assembly and the socket assembly.

[0055] When it is necessary to repair or replace parts, the elastic locking boss 10 is rotated by the anti-slip groove 11, and the elastic locking boss 10 drives the bolt 9 to rotate, so that the bolt 9 is separated from the bolt hole 8; or the bolt 16 is rotated by a tool, so that the bolt 16 moves in the inner cavity of the connecting hole 15, thereby realizing the disassembly of the locking ring 13 and the socket assembly.

[0056] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A type of anti-detachment and wear-resistant wire and cable connector, comprising a conductor, the conductor being wrapped with a modified polyvinyl chloride sheath, characterized in that: The modified PVC jacket has uniformly applied anti-slip and wear-resistant textures on its exterior. A plug housing is applied to the corresponding end of the modified PVC jacket. A heat-shrinkable rubber sleeve is connected between the plug housing and the modified PVC jacket. One end of the heat-shrinkable rubber sleeve is fixedly bonded to the plug housing, and the other end of the heat-shrinkable rubber sleeve is heat-fused to the modified PVC jacket. A conductive terminal is applied to the center of the outer end of the plug housing. The inner end of the conductive terminal contacts the corresponding end of the conductor. An arc-shaped contact protrusion is provided on the outer contact end of the conductive terminal. An elastic locking boss is symmetrically provided on the outer circumference of the conductor. The outer surface of the elastic locking boss is designed with an arc-shaped guide surface. An annular locking sleeve is threaded onto the outer circumference of the conductor. A locking ring is adapted to the outside of the annular locking sleeve. A socket assembly is connected to the locking ring. A locking groove adapted to the elastic locking boss is opened on the surface of the socket assembly.

2. The anti-loosening and wear-resistant wire and cable connector according to claim 1, characterized in that: The conductor has a threaded hole symmetrically opened on its outer circumference, and a threaded stud is threaded into the inner cavity of the threaded hole.

3. The anti-loosening and wear-resistant wire and cable connector according to claim 2, characterized in that: The elastic locking boss is located at the center of the bolt, and anti-slip grooves are evenly distributed on the outer circumference of the elastic locking boss.

4. The anti-loosening and wear-resistant wire and cable connector according to claim 1, characterized in that: The annular locking sleeve is provided with elastic positioning balls evenly distributed on the side of the fitting end, and the elastic positioning balls are designed in a hemispherical shape.

5. The anti-loosening and wear-resistant wire and cable connecting wire according to claim 4, characterized in that: The locking ring has an elastic positioning groove on its fitting end side. The inner cavity of the elastic positioning groove has a hemispherical cross-section, and the elastic positioning ball is engaged with the elastic positioning groove.

6. The anti-loosening and wear-resistant wire and cable connector according to claim 5, characterized in that: The locking ring also has a connecting hole on the side of the fitting end. The inner cavity of the connecting hole has a convex cross-section. A bolt is added to the inner cavity of the connecting hole. The head of the bolt fits into the inner wall of the connecting hole. The locking ring is connected to the socket assembly by the bolt.

Images