Flame-retardant cable branching device

Abstract

The utility model discloses a flame-retardant cable branching device, which relates to the technical field of electric power tools, and comprises a main frame body, the main frame body comprises an outer frame and an inner ring body, a connecting rod is fixed between the outer frame and the inner ring body, the inner side of the main frame body is provided with a cable clamping assembly, and the cable clamping assembly comprises a branch clamping unit arranged on the inner side of the main frame body, comprising a liquid storage block fixed to a connecting rod, a plurality of liquid guide pipes are arranged on the outer wall of the liquid storage block in a circumferential array mode, a fixing cylinder is connected to the tail ends of the liquid guide pipes, a sleeve is slidably connected to the outer portion of the fixing cylinder in a sleeving mode, and a circulation channel is formed among the liquid storage block, the liquid guide pipes, the fixing cylinder and the sleeve; and a first spring is connected between the gasket and the sleeve, so that the problems of relatively high labor intensity and relatively low efficiency for a large amount of cable branching work due to the fact that the existing cable branching device mostly adopts a manual screwing wire pressing bolt to fix the electric wire are solved.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically a flame-retardant cable branching device. Background Technology

[0002] With the rapid development of modern society, power systems play a vital role in various fields. Cables, as key components of power transmission, are widely used in buildings, industrial sites, transportation facilities, and many other places. In many applications, cable distribution is required to meet the power needs of different equipment or areas. Flame-retardant cable distribution devices are used to safely and reliably distribute the electrical energy of a main cable to multiple branch cables. They must not only ensure the stability and accuracy of power transmission but also possess excellent flame-retardant properties to prevent the occurrence and spread of fires.

[0003] The reference patent, titled "Multi-core Cable Splitting Device" (Publication No. CN210182937U, Publication Date 2020-03-24), includes a support frame and several tensioning clamps. The outer wall of the support frame has several receiving slots, and each tensioning clamp is embedded in one of these slots. Each tensioning clamp includes a fixing base, a support plate, and a pressure bolt. The fixing base has a tensioning groove, and the support plate is inserted into and installed in the groove from its side. The support plate has screw holes through which the pressure bolt passes. The pressure bolt has a pressure part at its end. By tightening the pressure bolt, the cable cores and the splitter wires can be pressed together. This device can perform parallel splitting of the main cable and has a simple, practical structure that is convenient and quick to operate.

[0004] Based on the aforementioned patent, the wire clamping bolts are tightened manually, which is labor-intensive and inefficient for a large number of cable branching operations. Therefore, this utility model provides a flame-retardant cable branching device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a flame-retardant cable splitter, which solves the problem that existing cable splitters mostly rely on manually tightening wire bolts to fix the wires, resulting in high labor intensity and low efficiency for large-scale cable splitting work.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flame-retardant cable distribution device, comprising a main frame, the main frame including an outer frame and an inner ring, wherein a connecting rod is fixed between the outer frame and the inner ring, and a wire clamping assembly is provided inside the main frame, the wire clamping assembly including:

[0007] The clamping unit is located inside the main frame and includes a liquid storage block fixed on the connecting rod. The outer wall of the liquid storage block is arranged with several sets of liquid guide tubes in a circumferential array. The end of the liquid guide tube is connected to a fixed cylinder. A sleeve is slidably sleeved on the outside of the fixed cylinder. A flow channel is formed between the liquid storage block, the liquid guide tube, the fixed cylinder and the sleeve. A gasket is fixed on the outside of the fixed cylinder. A first spring is connected between the gasket and the sleeve.

[0008] The liquid propulsion unit is located at the front end of the liquid storage block and is used to continuously push the liquid inside the liquid storage block into the fixed cylinder.

[0009] The pressure limiting unit is located at the lower end of the hydraulic thrust unit and is used to maintain the upper limit of the hydraulic pressure inside the reservoir block.

[0010] Preferably, a pressure block is fixed to the end of the fixed cylinder, and a pressure block is provided on the inner side of the outer frame to cooperate with the pressure block to fix the inner wire of the cable.

[0011] Preferably, the liquid pushing unit includes a liquid pushing box fixed to the front end of the fixed cylinder, and the liquid pushing box and the fixed cylinder are connected to each other.

[0012] Preferably, a side rod is fixed on one side of the liquid pusher box, and a threaded screw rod is threaded onto the side rod. A push piston that slides against the inner wall of the liquid pusher box is fixed at the end of the threaded screw rod. A liquid filling port is provided at the top of the liquid pusher box, and a sealing plug is screwed onto the inner side of the liquid filling port.

[0013] Preferably, the pressure limiting unit includes a buffer box fixed to the lower end of the liquid dispensing box, and the buffer box and the liquid dispensing box are interconnected by a conduit.

[0014] Preferably, a second spring is connected to one inner wall of the buffer box, and a pressure-bearing piston that slides against the inner wall of the buffer box is connected to the other end of the second spring. The buffer box is provided with a pressure relief hole on the side near the second spring.

[0015] Beneficial effects

[0016] This utility model provides a flame-retardant cable branching device. Compared with the prior art, it has the following advantages:

[0017] 1. This flame-retardant cable splitting device uses a rotating threaded rod to drive a piston that pushes liquid, which in turn moves a sleeve, causing the clamping block to approach the bearing block and clamp the inner cable wires. This unique clamping method provides a stable and uniform clamping force, ensuring that the inner cable wires are firmly fixed during the splitting process, preventing loosening, and guaranteeing the smooth progress of the splitting work. It not only significantly increases the clamping speed but also ensures that the tightening force of each clamping bolt is uniform, thus improving the quality of the splitting process.

[0018] 2. This flame-retardant cable distribution device is equipped with a pressure limiting unit. When the hydraulic pressure inside the liquid storage block reaches the upper limit, the pressure-bearing piston moves to open the pressure relief hole to discharge excess liquid and maintain the upper limit of hydraulic pressure. This design can ensure that the inner wires of the cable will not be damaged due to excessive force when fixed, thus maximizing the protection of the integrity of the inner wires of the cable, extending its service life, and reducing safety hazards and economic losses caused by damage to the inner wires of the cable. Attached Figure Description

[0019] Figure 1 This is a three-dimensional appearance diagram of the present utility model.

[0020] Figure 2 This is a schematic diagram of the wire clamping assembly of this utility model.

[0021] Figure 3 This is a cross-sectional view of the hydraulic thrust unit and pressure limiting unit of this utility model.

[0022] Figure 4 This is a schematic diagram of the clip unit of this utility model.

[0023] In the diagram: 1-Main frame, 11-Outer frame, 12-Connecting rod, 13-Inner ring, 2-Wire clamping assembly, 21-Clamping unit, 211-Liquid storage block, 212-Liquid guide tube, 213-Fixing cylinder, 214-Sleeve, 215-First spring, 216-Gasket, 217-Wire clamping block, 218-Pressure-bearing block, 22-Liquid push unit, 221-Push box, 222-Side rod, 223-Threaded rod, 224-Push piston, 225-Liquid inlet, 23-Pressure limiting unit, 231-Buffer box, 232-Second spring, 233-Pressure-bearing piston, 234-Conducting tube, 235-Pressure discharge hole. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a flame-retardant cable branching device, specifically including the following embodiments:

[0026] Example 1: A flame-retardant cable splitter includes a main frame 1, which includes an outer frame 11 and an inner ring 13. A connecting rod 12 is fixed between the outer frame 11 and the inner ring 13. A cable clamping assembly 2 is provided inside the main frame 1. The cable clamping assembly 2 includes a clamping unit 21, which is located inside the main frame 1 and includes a liquid storage block 211 fixed to the connecting rod 12. The outer wall of the liquid storage block 211 is arranged with several sets of liquid guiding pipes 212 in a circumferential array. A fixed cylinder 213 is connected to the end of the liquid guiding pipe 212. A sleeve 214 is slidably sleeved on the outside of the fixed cylinder 213. A flow channel is formed between the liquid storage block 211, the liquid guiding pipes 212, the fixed cylinder 213, and the sleeve 214. A cable clamp is fixed on the outside of the fixed cylinder 213. A gasket 216 is connected to a first spring 215 between the gasket 216 and the sleeve 214; a hydraulic push unit 22 is located at the front end of the liquid storage block 211 and is used to continuously push the liquid inside the liquid storage block 211 into the fixed cylinder 213; a pressure limiting unit 23 is located at the lower end of the hydraulic push unit 22 and is used to maintain the upper limit of the hydraulic pressure inside the liquid storage block 211; under pressure, the liquid is continuously pushed into the fixed cylinder 213 through the connection between the push box 221 and the fixed cylinder 213. As the liquid enters the fixed cylinder 213, the liquid pressure pushes the sleeve 214 to slide outside the fixed cylinder 213, compressing the first spring 215. The movement of the sleeve 214 causes the wire clamping block 217 to approach the pressure bearing block 218, thereby clamping and fixing the inner wire of the cable.

[0027] Example 2: The main difference between this example and the first technical solution is that: a flame-retardant cable splitter device, a wire pressing block 217 is fixed at the end of the fixed cylinder 213, and a pressure-bearing block 218 is provided on the inner side of the outer frame 11 to cooperate with the wire pressing block 217 to fix the inner wire of the cable, the liquid push unit 22 includes a liquid push box 221 fixed to the front end of the fixed cylinder 213, and the liquid push box 221 and the fixed cylinder 213 are connected to each other, and a side rod 222 is fixed on one side of the liquid push box 221. A threaded screw rod 223 is screwed onto the upper part of the pressure limiting unit 221. A piston 224, which slides against the inner wall of the liquid-push box 221, is fixed to the end of the threaded screw rod 223. A liquid inlet 225 is provided on the upper part of the liquid-push box 221, and a sealing plug is screwed onto the inner side of the liquid inlet 225. The pressure limiting unit 23 includes a buffer box 231 fixed to the lower end of the liquid-push box 221. A connecting pipe 234 is connected between the buffer box 231 and one side of the liquid-push box 221. A second spring 232 is connected to the inner wall of one side of the buffer box 231. The other end of 232 is connected to a pressure-bearing piston 233 that slides against the inner wall of the buffer box 231. The buffer box 231 has a pressure relief hole 235 on the side near the second spring 232. By rotating the threaded rod 223, since the threaded rod 223 is threadedly connected to the side rod 222, rotating the threaded rod 223 will cause it to move along the side rod 222, driving the push piston 224 to slide on the inner wall of the liquid-pushing box 221. The push piston 224 pushes the liquid in the liquid-pushing box 221, and the liquid flows through under pressure. The liquid is continuously pushed into the fixed cylinder 213 through the connection between the liquid storage box 221 and the fixed cylinder 213. When the internal hydraulic pressure of the liquid storage block 211 rises, some liquid enters the buffer box 231 through the guide pipe 234. Under the action of hydraulic pressure, the pressure-bearing piston 233 compresses the second spring 232 and slides on the inner wall of the buffer box 231. When the internal hydraulic pressure of the liquid storage block 211 reaches the upper limit, the pressure-bearing piston 233 moves to a specific position, the pressure discharge hole 235 opens, and the excess liquid is discharged through the pressure discharge hole 235.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] During operation, the inner cable is first placed between the pressure block 217 and the bearing block 218. The threaded screw 223 is then rotated. Since the threaded screw 223 is threadedly connected to the side rod 222, rotating the threaded screw 223 will cause it to move along the side rod 222, driving the push piston 224 to slide on the inner wall of the liquid-pushing box 221. The push piston 224 pushes the liquid inside the liquid-pushing box 221. Under pressure, the liquid passes through the connection between the liquid-pushing box 221 and the fixed cylinder 213, continuously being pushed into the fixed cylinder 213. As the liquid enters the fixed cylinder 213, the liquid pressure pushes the sleeve 214 to slide outside the fixed cylinder 213, compressing the first spring. Spring 215 and sleeve 214 move to drive wire clamping block 217 closer to pressure block 218, thereby clamping and fixing the inner wire of the cable. When the internal hydraulic pressure of liquid storage block 211 rises, some liquid enters buffer box 231 through conduction pipe 234. Under the action of hydraulic pressure, pressure piston 233 compresses second spring 232 and slides on the inner wall of buffer box 231. When the internal hydraulic pressure of liquid storage block 211 reaches the upper limit, pressure piston 233 moves to a specific position, pressure discharge hole 235 opens, and excess liquid is discharged through pressure discharge hole 235, maintaining the upper limit of internal hydraulic pressure of liquid storage block 211 and ensuring that the inner wire of the cable will not be damaged due to excessive force when fixed.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flame-retardant cable distribution device, comprising a main frame (1), wherein the main frame (1) includes an outer frame (11) and an inner ring (13), and a connecting rod (12) is fixed between the outer frame (11) and the inner ring (13), characterized in that: The main frame (1) is provided with a wire clamping assembly (2) on its inner side. The wire clamping assembly (2) includes: The clamping unit (21) is located inside the main frame (1) and includes a liquid storage block (211) fixed on the connecting rod (12). The outer wall of the liquid storage block (211) is provided with several sets of liquid guide tubes (212) arranged in a circumferential array. The end of the liquid guide tube (212) is connected to a fixed cylinder (213). A sleeve (214) is slidably sleeved on the outside of the fixed cylinder (213). A flow channel is formed between the liquid storage block (211), the liquid guide tube (212), the fixed cylinder (213) and the sleeve (214). A gasket (216) is fixed on the outside of the fixed cylinder (213). A first spring (215) is connected between the gasket (216) and the sleeve (214). The liquid propulsion unit (22) is located at the front end of the liquid storage block (211) and is used to continuously push the liquid inside the liquid storage block (211) into the fixed cylinder (213); The pressure limiting unit (23) is located at the lower end of the hydraulic thrust unit (22) and is used to maintain the upper limit of the internal hydraulic pressure of the liquid storage block (211).

2. The flame-retardant cable branching device according to claim 1, characterized in that: The end of the fixed cylinder (213) is fixed with a wire pressing block (217), and the inner side of the outer frame (11) is provided with a pressure block (218) that cooperates with the wire pressing block (217) to fix the inner wire of the cable.

3. The flame-retardant cable branching device according to claim 1, characterized in that: The liquid push unit (22) includes a liquid push box (221) fixed to the front end of the fixed cylinder (213), and the liquid push box (221) and the fixed cylinder (213) are connected to each other.

4. The flame-retardant cable branching device according to claim 3, characterized in that: A side rod (222) is fixed on one side of the liquid pusher box (221), and a threaded screw rod (223) is threaded onto the side rod (222). A push piston (224) that slides against the inner wall of the liquid pusher box (221) is fixed at the end of the threaded screw rod (223). A liquid filling port (225) is provided on the upper part of the liquid pusher box (221), and a sealing plug is screwed onto the inner side of the liquid filling port (225).

5. A flame-retardant cable branching device according to claim 3, characterized in that: The pressure limiting unit (23) includes a buffer box (231) fixed to the lower end of the liquid push box (221), and the buffer box (231) and the liquid push box (221) are interconnected by a conduit (234).

6. A flame-retardant cable branching device according to claim 5, characterized in that: A second spring (232) is connected to one inner wall of the buffer box (231), and a pressure-bearing piston (233) that slides against the inner wall of the buffer box (231) is connected to the other end of the second spring (232). A pressure relief hole (235) is provided on the side of the buffer box (231) near the second spring (232).

Images