Temporary connection device for low voltage electric lines

Abstract

The utility model discloses a low -voltage wire temporary connecting device relates to low -voltage wire technical field, including fixed pipe no.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage wire technology, specifically a temporary connection device for low-voltage wires. Background Technology

[0002] In applications involving temporary low-voltage wiring connections, such as construction sites, temporary equipment power supply, and emergency repairs, a fast, safe, and reliable wiring connection method is crucial.

[0003] Currently, most of the mainstream temporary connection methods for low-voltage wires rely on traditional mechanical connection methods. The specific operation process is as follows: First, use wire strippers to accurately remove a certain length of the outer insulation of the wire. Then, insert the exposed conductor after removing the insulation into the terminal or achieve a physical connection by wrapping. Finally, ensure electrical continuity by means of crimping, welding or bolting.

[0004] The wire stripping process requires specialized tools and highly skilled operators. Details such as the stripping length and the flatness of the insulation cut can affect the connection quality. From stripping to fixing, each connection point takes a long time. In scenarios requiring a large number of temporary connections, the overall construction cycle is extended, affecting the project progress.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The purpose of this invention is to provide a temporary connection device for low-voltage electrical wires to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a temporary connection device for low-voltage wires, including a fixed pipe, a fixing mechanism fixedly installed on one side wall of the fixed pipe, the fixing mechanism including a threaded ring fixedly installed on one side wall of the fixed pipe, a threaded sleeve threadedly connected to the outer wall of the threaded ring, five rotating shafts rotatably installed on the inner wall of the threaded sleeve near the threaded ring, a connecting rod slidably installed on the outer wall of each rotating shaft, a fixed shaft fixedly installed on the inner wall of the end of the connecting rod away from the rotating shaft, the end of the fixed shaft being arc-shaped and slidably connected to the side wall of the threaded ring, a spring connected to the outer wall of the fixed shaft, the end of the spring being connected to the outer wall of the rotating shaft, and a clamping plate fixedly installed on the outer wall of the rotating shaft.

[0008] Furthermore, a waterproof sealing sleeve is fixedly connected to one side wall of the fixed tube. Both the first and second waterproof sealing sleeves are made of elastic rubber, and the inner wall of the rubber is provided with an integrally formed anti-slip texture.

[0009] The fixing mechanism one, the connecting pipe, and the fixing mechanism two are all made of conductive materials and can be electrically connected to each other. The outer walls of all three are covered with an insulating layer.

[0010] Furthermore, the inside of the connecting pipe is solid, and grooves are provided on both sides of the connecting pipe.

[0011] Furthermore, a connecting pipe is fixedly installed on the side of the threaded sleeve away from the threaded ring, and a second fixing mechanism is fixedly installed on the side wall of the connecting pipe. The internal structure of the second fixing mechanism is the same as that of the first fixing mechanism, and the internal threads of the first fixing mechanism and the second fixing mechanism face opposite directions.

[0012] The fixing mechanism has a fixing pipe 2 fixedly installed on its two side walls, and a waterproof sealing sleeve 2 is fixedly connected to the end of the fixing pipe 2.

[0013] Furthermore, the contact groove end face is obliquely opened, and the contact groove end face can cut into the inner wall of the wire insulation layer and abut against the inner wall wire;

[0014] The spring itself has an elasticity lower than the thread engagement force between the threaded sleeve and the threaded ring, and the two ends of the spring are engaged with the fixed shaft and the rotating shaft by retaining rings.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. No need to pre-strip the wire insulation layer. The operator only needs to insert the two wires into the device from the direction of fixing pipe one and fixing pipe two respectively, and then rotate the connecting pipe. This will cause the clamps of fixing mechanism one and fixing mechanism two to converge towards the center and clamp the wires. The end face of the contact groove cuts into the inner wall of the wire insulation layer at an angle and abuts against the wire on the inner wall to achieve electrical connection. This reduces the skill requirements of the operator, improves the connection efficiency, and shortens the time of a single connection point. In scenarios that require a large number of temporary connections, it can effectively shorten the overall construction cycle and speed up the project progress.

[0017] 2. The elastic preload of the spring and the thread engagement force between the threaded sleeve and the threaded ring ensure a long-lasting and stable clamping effect of the clamping plate on the wire. The end face of the contact groove cuts into the inner wall of the wire insulation layer and abuts against the inner wall wire, which can provide a stable and reliable electrical connection, reduce contact resistance, reduce power loss, ensure the stability and quality of power supply, and solve the connection instability problem that may occur in traditional connection methods. Attached Figure Description

[0018] Figure 1 A schematic diagram of the front structure of a temporary connection device for low-voltage electrical wires;

[0019] Figure 2 A schematic cross-sectional view of a temporary connection device for low-voltage electrical wires;

[0020] Figure 3 A schematic diagram of the disassembly structure of a temporary connection device for low-voltage electrical wires;

[0021] Figure 4An enlarged view of the fixing mechanism of a temporary connection device for low-voltage electrical wires;

[0022] Figure 5 This is a schematic diagram of the side structure of a connecting rod in a temporary connection device for low-voltage electrical wires.

[0023] In the diagram: 1. Fixed pipe one; 2. Fixed mechanism one; 201. Threaded sleeve; 202. Threaded ring; 203. Connecting rod; 204. Rotating shaft; 205. Clamping plate; 206. Contact groove; 207. Fixed shaft; 208. Spring; 3. Connecting pipe; 4. Fixed mechanism two; 5. Fixed pipe two; 6. Waterproof sealing sleeve one; 7. Waterproof sealing sleeve two. 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 Figures 1-4This utility model provides a technical solution: a temporary connection device for low-voltage wires, including a fixed pipe 1, a fixing mechanism 2 fixedly installed on the side wall of the fixed pipe 1, and a threaded ring 202 fixedly installed on the side wall of the fixed pipe 1. A threaded sleeve 201 is threadedly connected to the outer wall of the threaded ring 202. Five rotating shafts 204 and corresponding clamping plates 205 are provided. By simply rotating the threaded sleeve 201, the threaded sleeve 201 can move relative to the threaded ring 202 using the transmission principle of the thread, thereby driving the rotating shafts 204, connecting rods 203, and other components to move, thus clamping or loosening the clamping plates 205. This multi-point clamping design, compared to traditional single-point or double-point clamping methods, is simple to operate, requires no complex tools or professional skills, and can be mastered by ordinary operators after simple training, improving work efficiency and enabling the wire to be uniformly clamped at multiple positions simultaneously. The clamping force is effectively dispersed, avoiding local stress concentration and ensuring the stability of the connection between the wire and the device. A connecting rod 203 is slidably mounted on the outer wall of each rotating shaft 204. A fixed shaft 207 is fixedly mounted on the inner wall of the end of the connecting rod 203 away from the rotating shaft 204. The end of the fixed shaft 207 is slidably connected to the side wall of the threaded ring 202 in an arc shape. A spring 208 is connected to the outer wall of the fixed shaft 207, and the end of the spring 208 is connected to the outer wall of the rotating shaft 204. The spring 208 connects between the fixed shaft 207 and the rotating shaft 204, providing elastic pre-tension to the clamping plate 205. When the wire is inserted into the device and clamped by the clamping plate 205, the spring 208 will adaptively adjust according to the thickness of the wire and the force applied. If the wire is subjected to external pulling or vibration, the elasticity of the spring 208 can buffer part of the external force, ensuring that the clamping plate 205 always maintains a stable clamping force on the wire and will not easily loosen due to external forces. The clamping plate 205 is fixedly mounted on the outer wall of the rotating shaft 204.

[0026] Please see Figure 3 , Figure 4 This utility model provides a technical solution: a temporary connection device for low-voltage wires, including a connecting pipe 3 fixedly installed on the side of the threaded sleeve 201 away from the threaded ring 202, and a fixing mechanism 2 4 fixedly installed on the side wall of the connecting pipe 3. The internal structure of the fixing mechanism 2 4 is the same as that of the fixing mechanism 1 2. When rotating the connecting pipe 3, due to the identical internal structure of the two fixing mechanisms, the operator does not need to consider the differences between the different structures or the complicated operation sequence. The internal threads of the fixing mechanism 1 2 and the fixing mechanism 2 4 face opposite directions, so that the two fixing mechanisms can clamp or loosen the wires at the same time. The operator only needs to focus on the single action of rotating the connecting pipe 3 to complete the connection or disconnection of the two wires. The identical internal structure and reverse thread design of the two fixing mechanisms enable the device to adapt to wires of different specifications. Whether the wire is thinner or thicker, the clamping degree of the two fixing mechanisms can be adjusted by rotating the connecting pipe 3 to adapt to the diameter of the wire.

[0027] Please see Figure 1 , Figure 2 This utility model provides a technical solution: a temporary connection device for low-voltage wires, including a fixing mechanism 2 4 with a fixing pipe 2 5 fixedly installed on its side wall, a waterproof sealing sleeve 2 7 fixedly connected to the end of the fixing pipe 2 5, and a waterproof sealing sleeve 1 6 fixedly connected to the side wall of the fixing pipe 1. Both the waterproof sealing sleeve 1 6 and the waterproof sealing sleeve 2 7 are made of elastic rubber. The waterproof sealing sleeve 1 6 and the waterproof sealing sleeve 2 7 are made of this material because it has good flexibility and sealing performance. When the wire passes through the fixing pipe 1 1 and the fixing pipe 2 5, the waterproof sealing sleeve made of elastic rubber can tightly fit the outer surface of the wire, forming a waterproof barrier. The inner wall of the rubber is provided with an integrally formed anti-slip texture, which increases the friction between the waterproof sealing sleeve and the wire. When the wire is pulled or vibrated by external force, the anti-slip texture can effectively prevent the wire from sliding inside the waterproof sealing sleeve, thereby maintaining a stable connection between the wire and the device.

[0028] Please see Figure 1 , Figure 2 This utility model provides a technical solution: a temporary connection device for low-voltage wires, including a fixing mechanism 1 2, a connecting pipe 3, and a fixing mechanism 2 4, all of which are made of conductive materials. By using such materials and making the fixing mechanism 1 2, the connecting pipe 3, and the fixing mechanism 2 4 electrically connected, it is possible to ensure that the current is smoothly conducted between these components. Their outer walls are all covered with an insulating layer.

[0029] Please see Figure 4 This utility model provides a technical solution: a temporary connection device for low-voltage wires, including a contact groove 206 with an obliquely oriented end face. When the end face of the contact groove 206 obliquely cuts into the inner wall of the wire insulation layer, the contact surface with the inner wall wire is no longer a simple planar contact, but forms an embedded contact method. The end face of the contact groove 206 can cut into the inner wall of the wire insulation layer and abut against the inner wall wire, increasing the contact area. At the same time, the friction generated by cutting into the insulation layer can effectively prevent the wire from sliding or loosening in the contact groove 206. Since the end face of the contact groove 206 obliquely cuts into the wire insulation layer and abuts against the inner wall wire, the conduction of current at the contact point can be smoother.

[0030] Please see Figure 2 This utility model provides a technical solution: a temporary connection device for low-voltage wires, including a connecting pipe 3 with a solid interior and grooves on both sides. When connecting wires, these grooves can fix and position the wires, making the connection of the wires more stable and orderly.

[0031] Please see Figure 5This utility model provides a technical solution: a temporary connection device for low-voltage wires, including a spring 208 whose elasticity is lower than the thread engagement force between the threaded sleeve 201 and the threaded ring 202. The threaded connection will not loosen on its own due to the elasticity of the spring 208. The two ends of the spring 208 are engaged with the fixed shaft 207 and the rotating shaft 204 by retaining rings. When the equipment is subjected to slight vibration or external impact, the spring 208 cannot overcome the engagement force between the threads, which can ensure that the threaded sleeve 201 and the threaded ring 202 always remain connected, maintain the stability of the entire device structure, and avoid equipment failure or performance degradation caused by loose connection.

[0032] Working principle: Insert two wires into the device from the directions of fixing tube 1 and fixing tube 2 5 respectively, so that the ends of the wires enter between the clamps 205 of fixing mechanism 1 2 and fixing mechanism 2 4 and abut against both sides of the connecting tube 3. Then rotate the connecting tube 3. Since the threads of fixing mechanism 1 2 and fixing mechanism 2 4 are opposite, the two threaded sleeves 201 will rotate simultaneously towards the corresponding threaded rings 202, causing the two clamps 205 to converge towards the center and clamp the wires. During this process, the end face of the contact groove 206 cuts into the inner wall of the wire insulation layer at an angle and abuts against the inner wall of the wire to achieve electrical connection. At the same time, waterproof sealing sleeve 1 6 and waterproof sealing sleeve 2 7 tightly wrap the outer wall of the wire to provide waterproof and anti-slip function and prevent the threaded rings 202 from moving in the opposite direction. After that, check the degree of wire clamping and the sealing of the device. Once it is confirmed that there are no problems, the connection is completed. The current can be conducted through fixing mechanism 1 2, connecting tube 3, and fixing mechanism 2 4, which are made of conductive material and can be electrically connected and have an outer wall covered with an insulation layer. If it is necessary to disassemble the connection, rotate the connecting tube 3 in the opposite direction to loosen the clamps 205 and pull out the wires.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A temporary connection device for low-voltage electrical wires, comprising a fixing pipe (1), characterized in that: A fixing mechanism (2) is fixedly installed on the side wall of the fixing pipe (1). The fixing mechanism (2) includes a threaded ring (202) fixedly installed on the side wall of the fixing pipe (1). A threaded sleeve (201) is threadedly connected to the outer wall of the threaded ring (202). Five rotating shafts (204) are rotatably installed on the inner wall of the threaded sleeve (201) near the threaded ring (202). A connecting rod (203) is slidably installed on the outer wall of each rotating shaft (204). A fixing shaft (207) is fixedly installed on the inner wall of the end of the connecting rod (203) away from the rotating shaft (204). The end of the fixing shaft (207) is arc-shaped and slidably connected to the side wall of the threaded ring (202). A spring (208) is connected to the outer wall of the fixing shaft (207). The end of the spring (208) is connected to the outer wall of the rotating shaft (204). A clamping plate (205) is fixedly installed on the outer wall of the rotating shaft (204).

2. The low-voltage wire temporary connection device as described in claim 1, characterized in that: A connecting pipe (3) is fixedly installed on the side of the threaded sleeve (201) away from the threaded ring (202). A fixing mechanism two (4) is fixedly installed on the side wall of the connecting pipe (3). The internal structure of the fixing mechanism two (4) is the same as that of the fixing mechanism one (2). The internal threads of the fixing mechanism one (2) and the fixing mechanism two (4) are oriented in opposite directions.

3. A temporary low-voltage wire connection device as described in claim 2, characterized in that: The fixing mechanism 2 (4) has a fixing pipe 2 (5) fixedly installed on its side wall, and a waterproof sealing sleeve 2 (7) is fixedly connected to the end of the fixing pipe 2 (5).

4. A temporary low-voltage wire connection device as described in claim 3, characterized in that: The side wall of the fixed tube (1) is fixedly connected to a waterproof sealing sleeve (6). Both the waterproof sealing sleeve (6) and the waterproof sealing sleeve (7) are elastic rubbers, and the inner wall of the rubber is provided with an integrally formed anti-slip texture.

5. A temporary low-voltage wire connection device as described in claim 4, characterized in that: The fixing mechanism one (2), the connecting pipe (3), and the fixing mechanism two (4) are all made of conductive materials. The fixing mechanism one (2), the connecting pipe (3), and the fixing mechanism two (4) can be electrically connected. The outer walls are all covered with an insulating layer.

6. A temporary low-voltage wire connection device as described in claim 5, characterized in that: Five clamps (205) form a contact groove (206), the end face of the contact groove (206) is obliquely opened, and the end face of the contact groove (206) can cut into the inner wall of the wire insulation layer and abut against the inner wall wire.

7. A temporary low-voltage wire connection device as described in claim 6, characterized in that: The inside of the connecting pipe (3) is solid, and grooves are provided on both sides of the connecting pipe (3).

8. A temporary low-voltage wire connection device as described in claim 7, characterized in that: The spring (208) itself has an elasticity lower than the thread engagement force between the threaded sleeve (201) and the threaded ring (202). The two ends of the spring (208) are clamped to the fixed shaft (207) and the rotating shaft (204) by retaining rings.

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