Flexible tensile low voltage cable

Abstract

The utility model relates to a kind of flexible tensile low-voltage cable, involve cable technical field, connecting part, for connecting cable with equipment;Telescopic sleeve is set on connecting part;Fixed wire clamp, it is set in telescopic sleeve, for fixing cable;Tensile assembly is set in telescopic sleeve, for providing buffer force when stretching cable;Wherein, the tensile assembly includes, electrically-conductive connecting piece, one end is set on fixed wire clamp, the other end is set on telescopic sleeve, the electric quantity that the electrically-conductive connecting piece imports is transmitted to telescopic sleeve;Damping telescopic piece, it is set on electrically-conductive connecting piece, for absorbing energy in electrically-conductive connecting piece deformation process, the utility model can be through tensile assembly, through damping telescopic piece absorption energy generated in electrically-conductive connecting piece deformation process, effectively reduce the damage of connecting piece due to mechanical stress, prolong the service life of equipment.

Description

Technical Field

[0001] This application relates to the field of cable technology, and in particular to a flexible, tensile-resistant low-voltage cable. Background Technology

[0002] Low-voltage cables are mainly used to transmit electrical energy generated by power generation equipment to users. In the power system, electrical energy is transmitted from the power plant to the substation through high-voltage transmission lines, and then the voltage is reduced to a low-voltage level by transformers. Finally, the electrical energy is distributed to various users, such as residential buildings, commercial buildings, and industrial plants, through low-voltage cables.

[0003] Currently, Chinese utility model patent application CN 221149701U, published on June 14, 2024, discloses a low-voltage aluminum core cable, including an outer sheath, an aluminum core cable inside the outer sheath, an oxidation-resistant layer outside the aluminum core cable, a high-temperature resistant layer outside the oxidation-resistant layer, an anti-corrosion layer outside the high-temperature resistant layer, a protective layer inside the outer sheath, an armor layer outside the protective layer, and an insulation layer outside the armor layer. Protective shell one and protective shell two are provided on both sides of the outer sheath. Protrusions are fixedly connected to both sides of the outer side of protective shell one, and positioning holes are opened inside the protrusions. Grooves are opened on both sides of the inner side of protective shell two, and U-shaped brackets are fixedly connected to both sides of the outer side of protective shell two. This invention achieves oxidation resistance, high-temperature resistance, and corrosion resistance in the low-voltage aluminum core cable, improving its service life.

[0004] In the installation and use of low-voltage aluminum core cables, the cables are usually laid in various complex environments. Since the cable itself has very limited elasticity to absorb impact, the cable connection parts are easily damaged when the cable is dragged or accidentally pulled during the laying process.

[0005] Therefore, it is necessary to provide a flexible, tensile-resistant low-voltage cable to solve the above problems. Utility Model Content

[0006] This application provides a flexible tensile-resistant low-voltage cable to improve the technical problem in related technologies where, during the use of low-voltage cables, when subjected to tension or bending, conductor breakage or insulation layer damage may occur, leading to electrical faults such as short circuits and leakage.

[0007] This application provides a flexible, tensile-resistant low-voltage cable, comprising:

[0008] Connector, used to connect cables to equipment;

[0009] A telescopic sleeve is installed on the connecting part;

[0010] A cable clamp, fitted inside a telescopic sleeve, is used to secure cables.

[0011] Tensile components, housed within the telescopic sleeve, provide cushioning force when the cable is stretched;

[0012] The tensile component includes,

[0013] A conductive connector, with one end mounted on a fixed wire clamp and the other end mounted on a telescopic sleeve, transmits the electrical current introduced by the fixed wire clamp to the telescopic sleeve.

[0014] Damping expansion joints are installed on conductive connectors to absorb energy during the deformation of the conductive connectors.

[0015] The technical solutions described above in this application embodiment have at least the following technical effects: the user fixes the cable to the fixing clamp, and the fixing clamp transmits electricity to the telescopic sleeve through the wire connector, thereby transmitting it to the connection part and connecting it to the equipment. When the cable is under tension, the damping telescopic component cooperates with the conductive connector to absorb the energy during the cable being pulled and impacted.

[0016] The flexible tensile low-voltage cable provided in this application embodiment can absorb the energy generated by the conductive connector during deformation through the tensile component in the tensile state. This energy absorption mechanism can effectively reduce the damage to the connector caused by mechanical stress and extend the service life of the equipment.

[0017] In some embodiments, the conductive connector includes:

[0018] The first fixing seat is fixedly installed on the end of the fixing clamp near the telescopic sleeve;

[0019] The first connecting rod has one end rotatably mounted on the first fixed seat;

[0020] The second connecting rod is rotatably mounted on the other end of the first connecting rod;

[0021] The third connecting rod is rotatably mounted on the other end of the second connecting rod;

[0022] The second fixed seat is fixedly installed inside the telescopic sleeve, and the second fixed seat is rotatably connected to the other end of the third connecting rod.

[0023] The third fixing seat is fixedly installed on the end of the fixing clamp near the telescopic sleeve;

[0024] The fourth connecting rod has one end rotatably mounted on the third fixed seat;

[0025] The fifth connecting rod has one end rotatably mounted on the other end of the fourth connecting rod;

[0026] The sixth connecting rod has one end rotatably mounted on the other end of the fifth connecting rod;

[0027] The fourth fixing seat is fixedly installed inside the telescopic sleeve, and the fourth fixing seat is rotatably connected to the other end of the sixth connecting rod.

[0028] In some embodiments, a central connecting shaft is provided at the midpoint between the second connecting rod and the fifth connecting rod, and the second connecting rod and the fifth connecting rod are rotatably connected through the central connecting shaft.

[0029] In some embodiments, the damping expansion member includes:

[0030] The first damper has one end mounted on the fixed clamp and the other end mounted on the central connecting shaft.

[0031] The first telescopic spring is sleeved on the first damper;

[0032] The second damper has one end mounted on the central connecting shaft and the other end mounted on the telescopic sleeve.

[0033] The second extension spring is fitted onto the second damper.

[0034] In some embodiments, the telescopic sleeve is provided with a guide groove, and the fixed clamp is fixedly provided with a guide block, and the fixed clamp is slidably disposed in the telescopic sleeve through the guide block.

[0035] In some embodiments, the first fixing base, the second fixing base, the third fixing base, the fourth fixing base, the first connecting rod, the second connecting rod, the third connecting rod, the fourth connecting rod, the fifth connecting rod, and the sixth connecting rod are all made of copper.

[0036] In some embodiments, the fixed wire clamp has a ring array of dividing slots. Attached Figure Description

[0037] Figure 1 A three-dimensional structural diagram of the flexible tensile-resistant low-voltage cable provided in the embodiments of this application;

[0038] Figure 2 This is a three-dimensional structural diagram of the tensile component provided in the embodiments of this application;

[0039] Figure 3 This is an exploded structural diagram of the damping expansion joint provided in the embodiments of this application;

[0040] The following are the labeling elements in the figure:

[0041] 1. Connecting part; 11. Fixed clamp; 111. Dividing groove; 112. Guide block; 12. Telescopic sleeve; 121. Guide groove; 2. Tensile component; 21. Conductive connector; 211. First fixed seat; 212. First connecting rod; 213. Second connecting rod; 214. Third connecting rod; 215. Second fixed seat; 216. Third fixed seat; 217. Fourth connecting rod; 218. Fifth connecting rod; 219. Sixth connecting rod; 210. Fourth fixed seat; 22. Damping telescopic component; 221. Central connecting shaft; 222. First damper; 223. First telescopic spring; 224. Second damper; 225. Second telescopic spring. Detailed Implementation

[0042] Based on this, in order to improve the technical problem in the related technology that when low-voltage cables are subjected to tension or bending during use, conductor breakage or insulation layer damage may occur, thereby causing electrical faults such as short circuits and leakage, the embodiments of this application provide the following solutions.

[0043] Please refer to the following: Figures 1 to 3 This application provides a flexible tensile-resistant low-voltage cable, which includes: a connecting part 1 for connecting the cable to equipment; a telescopic sleeve 12 disposed on the connecting part 1; a fixing clamp 11 sleeved inside the telescopic sleeve 12 for fixing the cable; and a tensile component 2 disposed inside the telescopic sleeve 12 for providing buffering force when the cable is stretched. The tensile component 2 includes a conductive connector 21, one end of which is disposed on the fixing clamp 11 and the other end of which is disposed on the telescopic sleeve 12, the conductive connector 21 transferring the electrical charge introduced by the fixing clamp 11 to the telescopic sleeve 12; and a damping telescopic component 22 disposed on the conductive connector 21 for absorbing energy during the deformation of the conductive connector 21.

[0044] In some embodiments, please refer to the following: Figures 1 to 3The conductive connector 21 includes: a first fixed seat 211, fixedly mounted on one end of the fixed wire clamp 11 near the telescopic sleeve 12; a first connecting rod 212, one end of which is rotatably mounted on the first fixed seat 211; a second connecting rod 213, one end of which is rotatably mounted on the other end of the first connecting rod 212; a third connecting rod 214, one end of which is rotatably mounted on the other end of the second connecting rod 213; a second fixed seat 215, fixedly mounted inside the telescopic sleeve 12, the second fixed seat 215 being rotatably connected to the other end of the third connecting rod 214; a third fixed seat 216, fixedly mounted on one end of the fixed wire clamp 11 near the telescopic sleeve 12; a fourth connecting rod 217, one end of which is rotatably mounted on the third fixed seat 216; a fifth connecting rod 218, one end of which is rotatably mounted on the other end of the fourth connecting rod 217; and a sixth connecting rod 219. A rod 219 is rotatably mounted on the other end of a fifth connecting rod 218; a fourth fixed seat 210 is fixedly mounted inside a telescopic sleeve 12, and the fourth fixed seat 210 is rotatably connected to the other end of a sixth connecting rod 219; a central connecting shaft 221 is provided at the midpoint between a second connecting rod 213 and a fifth connecting rod 218, and the second connecting rod 213 and the fifth connecting rod 218 are rotatably connected through the central connecting shaft 221; the damping telescopic component 22 includes: a first damper 222, one end of which is mounted on a fixed clamp 11, and the other end of which is mounted on the central connecting shaft 221; a first telescopic spring 223, which is sleeved on the first damper 222; a second damper 224, one end of which is mounted on the central connecting shaft 221, and the other end of which is mounted on the telescopic sleeve 12; and a second telescopic spring 225, which is sleeved on the second damper 224.

[0045] With this configuration, the user fixes the cable to the fixing clamp 11. When the cable is under tension, the fixing clamp 11 transmits power through the first fixing seat 211 and the third fixing seat 216 to the first connecting rod 212 and the fourth connecting rod 217, through the first connecting rod 212 and the fourth connecting rod 217 to the second connecting rod 213 and the fifth connecting rod 218, through the second connecting rod 213 and the fifth connecting rod 218 to the third connecting rod 214 and the sixth connecting rod 219, and through the third connecting rod 214 and the sixth connecting rod 219 to the second fixing seat 215 and the fourth fixing seat 210, thereby transmitting power to the telescopic sleeve 12. The telescopic sleeve 12 then transmits power to the connecting part 1 for connection with the equipment. Simultaneously, when the cable is under tension, a central connecting shaft 221 is provided between the second connecting rod 213 and the fifth connecting rod 218. When sliding backward, the first connecting rod 212 and the fourth connecting rod 217 rotate in opposite directions, causing the second connecting rod 213 and the fifth connecting rod 218 to rotate around the central rotation axis. At the same time, the third connecting rod 214 and the fourth connecting rod 217 rotate in opposite directions, lengthening the distance between the telescopic sleeve 12 and the fixed clamp 11. During the lengthening process between the fixed clamp 11 and the central connecting shaft 221, the first telescopic spring 223 absorbs the tension force on the cable when it is stretched. Meanwhile, the first damper 222 is used to absorb the energy generated by the deformation of the first telescopic spring 223 when it is stretched, so that the first telescopic spring 223 slowly returns to its original state. The second telescopic spring 225 and the second damper 224 are set between the central connecting shaft 221 and the telescopic sleeve 12, and operate on the same principle as the first telescopic spring 223 and the first damper 222. Thus, when the cable is under tension, the first telescopic spring 223 can absorb part of the tension, reducing the direct tensile stress on the cable. At the same time, the first damper 222 can absorb the energy generated by the spring during the stretching process, preventing the spring from being damaged due to rapid deformation, and allowing the spring to slowly return to its original state. This synergistic effect can effectively reduce mechanical vibration and impact, protecting the cable and connectors. Through the dual action of the spring and the damper, this design can significantly reduce the direct mechanical stress on the cable and connectors, extending the service life of the equipment.

[0046] In some embodiments, please refer to the following: Figures 1 to 2 The telescopic sleeve 12 is provided with a guide groove 121, and the fixed wire clamp 11 is fixedly provided with a guide block 112. The fixed wire clamp 11 is slidably disposed in the telescopic sleeve 12 through the guide block 112. The first fixed seat 211, the second fixed seat 215, the third fixed seat 216, the fourth fixed seat 210, the first connecting rod 212, the second connecting rod 213, the third connecting rod 214, the fourth connecting rod 217, the fifth connecting rod 218 and the sixth connecting rod 219 are all made of copper. The fixed wire clamp 11 is provided with a ring array of dividing grooves 111.

[0047] In this configuration, the conductive connector 21 is made of copper, which facilitates conductivity. Simultaneously, the guide block 112 on the fixed clamp 11 and the guide groove 121 on the telescopic sleeve 12 provide guidance during the sliding process of the telescopic sleeve 12 and the fixed clamp 11. The partition groove 111 on the fixed clamp 11 facilitates better cable clamping. Copper is an excellent conductive material with high conductivity. Using a copper conductive connector 21 ensures efficient power transmission and reduces energy loss. For example, in power transmission systems, copper connectors can significantly reduce contact resistance and improve power transmission efficiency. The design of the guide block 112 and guide groove 121 ensures that the fixed clamp 11 and the telescopic sleeve 12 move along a predetermined trajectory during sliding, avoiding deviation and jamming. This guiding mechanism significantly improves the mechanical stability of the system and reduces malfunctions caused by poor mechanical movement. The partition groove 111 on the fixed clamp 11 better clamps the cable, ensuring the stability of the cable within the fixed clamp 11.

[0048] The implementation principle of a flexible tensile-resistant low-voltage cable according to an embodiment of this application is as follows: The user fixes the cable to the fixing clamp 11. Under tension, the fixing clamp 11 transmits electricity through the first fixing seat 211 and the third fixing seat 216 to the first connecting rod 212 and the fourth connecting rod 217, then through the first connecting rod 212 and the fourth connecting rod 217 to the second connecting rod 213 and the fifth connecting rod 218, and finally through the second connecting rod 213 and the fifth connecting rod 218 to the third connecting rod 218. 4 and the sixth connecting rod 219 transmit power to the second fixed seat 215 and the fourth fixed seat 210 via the third connecting rod 214 and the sixth connecting rod 219, thereby transmitting power to the telescopic sleeve 12, which in turn transmits power to the connecting part 1 for connection with the equipment. Simultaneously, when the cable is under tension, a central connecting shaft 221 is provided between the second connecting rod 213 and the fifth connecting rod 218. When the fixed clamp 11 slides backward, the first connecting rod 212 and the fourth connecting rod 217 rotate in opposite directions, driving the second connecting rod 213 and... The fifth connecting rod 218 rotates around the central axis, simultaneously causing the third connecting rod 214 and the fourth connecting rod 217 to rotate in opposite directions, lengthening the distance between the telescopic sleeve 12 and the fixed clamp 11. During this lengthening process between the fixed clamp 11 and the central connecting shaft 221, the first telescopic spring 223 absorbs the tensile force on the cable. Simultaneously, the first damper 222 absorbs the energy generated by the deformation of the first telescopic spring 223 during its stretching, causing the first telescopic spring 223 to slowly return to its original position. Meanwhile, the second telescopic spring 225 and the second damper 224 are arranged between the central connecting shaft 221 and the telescopic sleeve 12, and are based on the same principle as the first telescopic spring 223 and the first damper 222. The conductive connector 21 is made of copper material to facilitate conductivity. At the same time, the guide block 112 on the fixed wire clamp 11 and the guide groove 121 on the telescopic sleeve 12 provide guidance during the sliding process of the telescopic sleeve 12 and the fixed wire clamp 11. The partition groove 111 on the fixed wire clamp 11 facilitates better clamping of the cable.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A flexible, tensile-resistant low-voltage cable, characterized in that, include: Connecting part (1), used to connect the cable to the equipment; Telescopic sleeve (12) is provided on the connecting part (1); A fixing clamp (11) is fitted inside a telescopic sleeve (12) for fixing cables; Tensile component (2), disposed inside telescopic sleeve (12), is used to provide buffer force when the cable is stretched; The tensile component (2) includes, The conductive connector (21) has one end set on the fixed wire clamp (11) and the other end set on the telescopic sleeve (12). The conductive connector (21) transmits the electrical current introduced by the fixed wire clamp (11) to the telescopic sleeve (12). A damping expansion joint (22) is provided on the conductive connector (21) to absorb energy during the deformation of the conductive connector (21).

2. The flexible tensile-resistant low-voltage cable according to claim 1, characterized in that, The conductive connector (21) includes: The first fixing seat (211) is fixedly installed on one end of the fixing clamp (11) near the telescopic sleeve (12); The first connecting rod (212) is rotatably mounted on the first fixed seat (211) at one end; The second connecting rod (213) is rotatably mounted on the other end of the first connecting rod (212); The third connecting rod (214) is rotatably mounted on the other end of the second connecting rod (213); The second fixed seat (215) is fixedly installed inside the telescopic sleeve (12), and the second fixed seat (215) is rotatably connected to the other end of the third connecting rod (214); The third fixing seat (216) is fixedly installed on one end of the fixing clamp (11) near the telescopic sleeve (12); The fourth connecting rod (217) is rotatably mounted on the third fixed seat (216) at one end; The fifth connecting rod (218) is rotatably mounted on the other end of the fourth connecting rod (217); The sixth connecting rod (219) is rotatably mounted on the other end of the fifth connecting rod (218); The fourth fixed seat (210) is fixedly installed inside the telescopic sleeve (12), and the fourth fixed seat (210) is rotatably connected to the other end of the sixth connecting rod (219).

3. A flexible tensile-resistant low-voltage cable according to claim 2, characterized in that: A central connecting shaft (221) is provided at the midpoint between the second connecting rod (213) and the fifth connecting rod (218), and the second connecting rod (213) and the fifth connecting rod (218) are rotatably connected through the central connecting shaft (221).

4. A flexible tensile-resistant low-voltage cable according to claim 3, characterized in that, The damping expansion member (22) includes: The first damper (222) has one end mounted on the fixed clamp (11) and the other end mounted on the central connecting shaft (221); The first extension spring (223) is sleeved on the first damper (222); The second damper (224) is mounted on the central connecting shaft (221) at one end and on the telescopic sleeve (12) at the other end. The second extension spring (225) is fitted onto the second damper (224).

5. A flexible tensile-resistant low-voltage cable according to claim 4, characterized in that: The telescopic sleeve (12) is provided with a guide groove (121), and the fixed wire clamp (11) is fixedly provided with a guide block (112). The fixed wire clamp (11) is slidably disposed in the telescopic sleeve (12) through the guide block (112).

6. A flexible tensile-resistant low-voltage cable according to claim 5, characterized in that: The first fixing seat (211), the second fixing seat (215), the third fixing seat (216), the fourth fixing seat (210), the first connecting rod (212), the second connecting rod (213), the third connecting rod (214), the fourth connecting rod (217), the fifth connecting rod (218), and the sixth connecting rod (219) are all made of copper.

7. A flexible tensile-resistant low-voltage cable according to claim 6, characterized in that: The fixed wire clamp (11) has a ring array of dividing slots (111).

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