Electrical wiring device

Abstract

The utility model discloses an electrical wiring device which comprises an upper electric shell and a lower electric shell which are detachably connected, the left side wall of the lower electric shell and the right side wall of the upper electric shell are respectively provided with a U-shaped notch, an upper conductive column is fixed in the upper electric shell, and the bottom of the lower electric shell is provided with a threaded hole at a position corresponding to the upper conductive column. An insulating threaded column is in threaded connection with the interior of a threaded hole of the lower electric shell, a lower conductive column is fixedly connected to the upper end of the insulating threaded column, and inner wires of the two cables are wound, tied and fixed to the lower conductive column and the upper conductive column respectively; by arranging the upper electric shell and the lower electric shell, the upper electric shell is internally provided with the upper conductive column, the lower electric shell is internally in threaded connection with the insulating threaded column, the upper end of the insulating threaded column is connected with the lower conductive column, and the two cables are connected with the upper conductive column and the lower conductive column in a tying mode, the connection firmness of the cables is improved, and the electrifying stability of the cables is guaranteed; the dislocation of the upper conductive column and the lower conductive column is not affected, and the power-on stability of the two cables is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electrical technology, and in particular relates to an electrical wiring device. Background Technology

[0002] In the electrical equipment industry, the connection and splicing of electrical wires is a common process. Electrical wiring devices are used to connect the cables at both ends to supply power, thus energizing the electrical equipment on both sides. When power is no longer needed, the two cables are disconnected.

[0003] Regarding electrical wiring devices, a search reveals that Chinese utility model patent publication number CN207038746U discloses an electrical wiring device, such as... Figure 1 As shown, it mainly includes a rectangular sleeve a, a wedge block b, and a conductive plate c. The conductive plate c is disposed on the inclined surface of the wedge block b. The terminal of the cable d is disposed inside the wedge block b and electrically connected to the conductive plate c. Two wedge blocks b are disposed opposite each other inside the rectangular sleeve a, and the conductive plates c of the two wedge blocks b are in contact. A long groove e is provided on the inclined surface of the wedge block b. The four sides of the conductive plate c are fixedly connected to the four sides of the opening of the long groove e. A pressure plate f parallel to the conductive plate c is disposed in the long groove e. A threaded hole is provided on the straight surface of the wedge block b. A screw that is rotatably connected to the pressure plate through a turntable is disposed in the threaded hole. An opening is provided at one end of the long groove. The terminal of the cable passes through the opening and is disposed between the conductive plate and the pressure plate. When energized, the two wedges are pushed inward to make their conductive plates contact, thus energizing the two cables. When energization is not needed, the two wedges are pulled outward to separate their conductive plates, thus energizing the two cables.

[0004] In practice, existing electrical wiring devices with similar technical solutions have been found to have areas for improvement: The rectangular sleeve lacks fasteners for connecting the wedge-shaped blocks, making it easy for the wedge-shaped blocks to slide outwards when the cable is accidentally pulled, causing the two conductive plates to separate and potentially disconnecting the power to the two cables. Furthermore, tightening the screws to push the pressure plate to clamp the cable makes it relatively easy for the cable to slip out between the pressure plate and the conductive plate when pulled, resulting in unstable cable connections and affecting power supply stability. Utility Model Content

[0005] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide an electrical wiring device that solves the problems of existing electrical wiring devices, such as the wedge block easily sliding outward when the cable is accidentally pulled, causing the two conductive plates to separate and thus easily leading to the disconnection of the two cables; and the problem that when the cable is clamped by tightening the screw to push the pressure plate, the cable is relatively easy to slip out between the pressure plate and the conductive plate when the cable is pulled, causing the cable connection to be unstable and affecting the stability of the power supply.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an electrical wiring device for connecting two cables, including an upper electrical shell and a lower electrical shell, wherein the upper electrical shell is detachably installed on the lower electrical shell, and both the left side wall of the lower electrical shell and the right side wall of the upper electrical shell are provided with U-shaped notches that allow the cables to pass through. At least one upper conductive post is fixed inside the upper electrical shell, and a threaded hole is opened at the bottom of the lower electrical shell at a position corresponding to the upper conductive post. An adjustable insulating threaded post is threaded into the threaded hole of the lower electrical shell, and a lower conductive post is fixedly connected to the upper end of the insulating threaded post. The inner conductor of one cable extends into the lower electrical shell through the U-shaped notch of the lower electrical shell and is wound and fixed to the lower conductive post, and the inner conductor of the other cable extends into the upper electrical shell through the U-shaped notch of the upper electrical shell and is wound and fixed to the upper conductive post.

[0007] As a further improvement of this utility model, a conductive block is connected to the upper end of the lower conductive post via a conductive spring.

[0008] As a further improvement of this utility model, a reinforcing block is fixed on the upper part of the bottom wall of the lower battery casing at the location where a threaded hole is provided, and the threaded hole penetrates the reinforcing block.

[0009] As a further improvement of this utility model, the upper electrical casing covers the lower electrical casing and is connected to the lower electrical casing by bolts.

[0010] As a further improvement of this utility model, a disassembly shell is connected inside the upper electrical shell by countersunk screws, the upper conductive post is fixedly connected inside the disassembly shell, and a U-shaped inner notch communicating with the U-shaped notch is provided on the right side wall of the disassembly shell.

[0011] As a further improvement of this utility model, a U-shaped notch is provided on the left side wall of the upper casing.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] 1. By setting up detachable upper and lower electrical shells, with an upper conductive post inside the upper shell and an adjustable insulating threaded post inside the lower shell, the upper end of the insulating threaded post is connected to the lower conductive post. During installation and use, the inner conductor of the left end of one cable is wound and secured to the upper conductive post of the upper shell, with the right end of the cable passing through a U-shaped notch. The right end of the inner conductor of the other cable is wound and secured to the lower conductive post, with the left end of the cable passing through the U-shaped notch of the lower shell. Then, the upper shell is connected and secured to the lower shell. Tightening the insulated threaded post causes the lower conductive post to move upward and contact the upper conductive post, allowing the two cables to be energized through the lower and upper conductive posts. When the cable is pulled, because the cable is fixed to the upper or lower conductive post, compared to the existing method of pressing the cable with a pressure plate, the connection strength of the cable is greatly improved, and the energization stability of the two cables is enhanced. In addition, when the cable is accidentally pulled, it will not affect the misalignment of the upper and lower conductive posts, thus increasing the energization stability of the two cables and preventing the power outage of the two cables.

[0014] 2. By connecting a conductive block to the upper end of the lower conductive post via a conductive spring, the elasticity of the conductive spring can press down on the lower conductive post, causing the conductive spring to be in a compressed state. This allows the conductive block to fully contact the upper conductive post. Even when the lower conductive post moves slightly, the conductive block can still maintain full contact with the upper conductive post, reducing the likelihood of the lower conductive post separating from the upper conductive post due to slight movement, thus ensuring the stability of the power supply of the two cables.

[0015] 3. By providing a reinforcing block on the upper part of the bottom wall of the lower casing, the length of the threaded hole is increased, thereby improving the connection stability between the insulating threaded post and the threaded hole. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the existing technology;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view at point A;

[0021] In the diagram: 1. Upper casing; 2. Lower casing; 3. U-shaped notch; 4. Upper conductive post; 5. Threaded hole; 6. Insulating threaded post; 7. Lower conductive post; 8. Cable; 9. Conductive block; 10. Conductive spring; 11. Reinforcing block; 12. Disassembly casing; 13. Inner notch; 14. Countersunk screw. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 2-4 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0023] For ease of description, the coordinate system is defined as follows: Figure 2 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0024] This utility model discloses an electrical wiring device. (Refer to...) Figure 2 and Figure 3 An electrical wiring device for connecting two cables 8 includes an upper electrical shell 1 and a lower electrical shell 2. Both the upper electrical shell 1 and the lower electrical shell 2 are open-top box shapes, with the opening of the upper electrical shell 1 facing downwards and the opening of the lower electrical shell 2 facing upwards. The upper electrical shell 1 is detachably mounted on the lower electrical shell 2. Specifically, the upper electrical shell 1 covers the lower electrical shell 2 and is connected to the lower electrical shell 2 by bolts. The left side wall of the lower electrical shell 2 and the right side wall of the upper electrical shell 1 are provided with U-shaped notches 3 for the cables 8 to pass through. At least one upper conductive post 4 is fixed inside the upper electrical shell 1; specifically, two upper conductive posts 4 can be fixed inside the upper electrical shell 1 to increase conductivity. A threaded hole 5 is provided at the bottom of the lower electrical shell 2 at a position corresponding to the upper conductive post 4. Figure 3 and Figure 4 As shown, the lower electrical casing 2 has an internally threaded hole 5 with an adjustable insulating threaded post 6. The bottom end of the insulating threaded post 6 has a cross notch (not shown in the attached figure) that allows a screwdriver to be inserted, facilitating the tightening of the insulating threaded post 6. In addition, a reinforcing block 11 is fixed on the upper part of the bottom wall of the lower electrical casing 2 at the location of the threaded hole 5. The threaded hole 5 passes through the reinforcing block 11, thereby increasing the length of the threaded hole 5 and improving the connection stability between the insulating threaded post 6 and the threaded hole 5. A lower conductive post 7 is fixedly connected to the upper end of the insulating threaded post 6. The inner conductor of one cable 8 extends into the lower electrical casing 2 from the U-shaped notch 3 and is wrapped and fixed to the lower conductive post 7. The inner conductor of the other cable 8 extends into the upper electrical casing 1 from the U-shaped notch 3 and is wrapped and fixed to the upper conductive post 4.

[0025] Furthermore, a conductive block 9 is connected to the upper end of the lower conductive post 7 via a conductive spring 10. The elasticity of the conductive spring 10 allows it to press down on the lower conductive post 7, compressing the spring and ensuring that the conductive block 9 is in full contact with the upper conductive post 4. Even when the lower conductive post 7 moves slightly, the conductive block 9 remains in full contact with the upper conductive post 4, reducing the risk of separation between the lower and upper conductive posts 7 and ensuring the stability of the power supply of the two cables 8.

[0026] In addition, a disassembly shell 12 is connected inside the upper electrical housing 1 via countersunk screws 14. The upper conductive post 4 is fixedly connected inside the disassembly shell 12. The right side wall of the disassembly shell 12 has a U-shaped inner notch 13 that communicates with the U-shaped notch 3, facilitating the disassembly shell 12 to be removed. Furthermore, the left side wall of the upper electrical housing 1 has a U-shaped notch 3. It should also be noted that the insulating threaded post 6, the upper electrical housing 1, the lower electrical housing 2, the disassembly shell 12, and the countersunk screws 14 are all made of insulating material.

[0027] This utility model features a detachably connected upper casing 1 and lower casing 2. The upper casing 1 contains an upper conductive post 4, and the lower casing 2 has an internally threaded, vertically adjustable insulating threaded post 6. The upper end of the insulating threaded post 6 is connected to the lower conductive post 7. During installation and use, the inner conductor of the left end of one cable 8 is wound and secured to the upper conductive post 4 of the upper casing 1, with the right end of the cable 8 passing through the U-shaped notch 3. The right end of the inner conductor of the other cable 8 is wound and secured to the lower conductive post 7, with the left end of the cable 8 passing through the U-shaped notch 3 of the lower casing 2. The upper casing 1 is then connected and fixed to the lower casing 2. Then, the insulating threaded post 6 is turned so that the lower conductive post 7 moves upward and contacts the upper conductive post 4. The two cables 8 are then energized through the lower conductive post 7 and the upper conductive post 4. When the cables 8 are pulled, because the cables 8 are fixed to the upper conductive post 4 or the lower conductive post 7, the connection firmness of the cables 8 is greatly improved compared with the method of pressing and fixing the cables 8 with pressure plates in the prior art. This improves the energization stability of the two cables 8. In addition, when the cables 8 are accidentally pulled, it will not affect the misalignment of the upper conductive post 4 and the lower conductive post 7. Therefore, the energization stability of the two cables 8 is increased and the power outage of the two cables 8 is avoided.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. An electrical wiring device for connecting two cables, characterized in that: The device includes an upper casing and a lower casing. The upper casing is detachably mounted on the lower casing. The left side wall of the lower casing and the right side wall of the upper casing are provided with U-shaped notches that allow cables to pass through. At least one upper conductive post is fixed inside the upper casing. The bottom of the lower casing has a threaded hole at a position corresponding to the upper conductive post. An adjustable insulating threaded post is threaded into the threaded hole of the lower casing. A lower conductive post is fixedly connected to the upper end of the insulating threaded post. The inner conductor of one cable extends into the lower casing through the U-shaped notch and is wrapped and fixed to the lower conductive post. The inner conductor of the other cable extends into the upper casing through the U-shaped notch and is wrapped and fixed to the upper conductive post.

2. An electrical wiring device according to claim 1, characterized in that: The upper end of the lower conductive post is connected to a conductive block via a conductive spring.

3. An electrical wiring device according to claim 1, characterized in that: A reinforcing block is fixed on the upper part of the bottom wall of the lower battery casing at the location of the threaded hole, and the threaded hole penetrates the reinforcing block.

4. An electrical wiring device according to claim 1, characterized in that: The upper electrical casing covers the lower electrical casing and is connected to the lower electrical casing by bolts.

5. An electrical wiring device according to claim 1, characterized in that: Inside the upper electrical housing, a disassembly housing is connected by countersunk screws. The upper conductive post is fixedly connected inside the disassembly housing. The right side wall of the disassembly housing has a U-shaped inner notch that communicates with the U-shaped notch.

6. An electrical wiring device according to claim 1, characterized in that: A U-shaped notch is provided on the left side wall of the upper casing.

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