Electrical wiring device for power transmission and transformation project

Abstract

The utility model discloses a kind of power transmission and transformation engineering electrical wiring device, including electrical wiring device main body, the electrical wiring device main body includes terminal box main body, the upper surface of the terminal box main body is sealed and fixed with sealing cover by fixed screw, the both sides bottom end of the terminal box main body integrally formed with fixed plate;By design, when electrical wiring device main body is completed to cable wiring, cable is inside the female thread inlet, the surface of the female thread inlet is rotated female thread ring, when female thread ring is rotated and moves down, drive the surface of inner inclined surface structure contact ball to extrude arc push, when arc push is extruded and moves, the inner surface of limit clamping plate is extruded on the surface of cable, it is convenient to simultaneously clamp the surface of cable by multiple limit clamping plates and reinforce installation, when using is subjected to tension, it is not easy to cause terminal box main body internal wiring terminal loose and fall off, stable wiring installation.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical wiring devices, specifically relating to an electrical wiring device for power transmission and transformation projects. Background Technology

[0002] Power transmission and transformation engineering is a general term for the construction of power transmission lines and the installation of transformers. In power transmission and transformation engineering, electrical wiring is used to realize a complete electrical circuit during the power transmission and transformation process. Electrical wiring is usually done through electrical wiring devices. Existing electrical wiring devices are equipment used for electrical wiring in power transmission and transformation engineering, which facilitates wiring to realize the electrical circuit. Existing electrical wiring devices, when used in power transmission and transformation projects, directly connect cables at one end to cables at the other. During wiring, both cable ends are fixedly inserted into the junction box through the inlet holes at both ends. Therefore, after installation, it is inconvenient to reinforce the cables at the inlet holes and between the inlet holes and the junction box. When the cables are pulled under force after wiring, the wiring connection points inside the junction box are prone to loosening, or even falling off, reducing the stability of the installation and affecting the anti-detachment reinforcement of the electrical wiring device during power transmission and transformation project installation. Therefore, this utility model proposes an electrical wiring device for power transmission and transformation projects. Utility Model Content

[0003] The purpose of this utility model is to provide an electrical wiring device for power transmission and transformation projects, so as to solve the problem mentioned in the background art that when the electrical wiring device is used for electrical wiring installation in power transmission and transformation projects, it is not convenient to reinforce the installation of cables at the inlet hole and junction box. When the cable is connected and pulled under force, it is easy to cause the wiring installation point inside the junction box to loosen under force, or even loosen and fall off, reducing the stability of the installation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electrical wiring device for power transmission and transformation engineering, comprising an electrical wiring device body, the electrical wiring device body including a junction box body, a sealing cover fixedly fixed to the upper surface of the junction box body by fixing screws, fixing plates integrally formed at the bottom ends of both sides of the junction box body, and external threaded inlets integrally provided at both ends of the junction box body; the electrical wiring device body also includes: The anti-detachment reinforcement mechanism includes a limiting clamping component disposed at the inner edge of the external thread inlet, the two ends of the limiting clamping component are provided with elastic reset components, and the outer surface of the external thread inlet is provided with a screw-in pushing component; A sealing mechanism, comprising a sealing component disposed on the end surface of a screw-in push assembly, wherein a limit mounting component is provided at the connection between the edge of the sealing component and the interior of the screw-in push assembly.

[0005] Preferably, the limiting clamping assembly includes a limiting groove formed at the inner edge of the external thread inlet, and a limiting clamping plate is limited inside the limiting groove, the inner surface of the limiting clamping plate extending into the interior of the external thread inlet.

[0006] Preferably, the elastic reset assembly includes a reset spring disposed at the connection between the end of the limiting clamping plate and the inner side of the limiting groove, and the limiting clamping plate and the interior of the limiting groove are elastically connected by the reset spring.

[0007] Preferably, the rotary push assembly includes an arc-shaped push block integrally disposed on the outer surface of the limiting clamping plate. The surface of the arc-shaped push block is covered with rolling balls through a rolling groove. The outer surface of the external thread inlet is threadedly connected to an internal thread ring. The inner bottom edge of the internal thread ring forms an inner inclined surface structure, and the inner inclined surface structure is in contact with the surface of the rolling balls.

[0008] Preferably, the outer surface of the internal threaded ring has engagement planes on both sides, and the two engagement planes are symmetrically arranged.

[0009] Preferably, the sealing assembly includes a limiting mounting groove formed at the top edge of the inner threaded ring, and the end of the inner threaded ring is limited and engaged with a sealing ring through the limiting mounting groove.

[0010] Preferably, the limiting installation assembly includes four limiting installation screws embedded in the surface of the internal threaded ring, the edge of the sealing ring has a through hole, and the bottom of the limiting installation groove has an internal threaded hole that matches the limiting installation screws.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By designing an anti-detachment reinforcement mechanism, after the electrical wiring device body has completed the cable wiring, the cable is inside the external thread inlet. The internal thread ring rotates on the outer surface of the external thread inlet. When the internal thread ring rotates and moves downward, it causes the surface of the inner inclined structure to contact the ball to squeeze the arc-shaped push block. When the arc-shaped push block moves while squeezing, it causes the inner surface of the limit clamping plate to squeeze the outer surface of the cable. This facilitates the simultaneous clamping of multiple limit clamping plates on the surface of the cable for reinforcement. When subjected to tension, it is less likely to cause the wiring terminals inside the junction box body to loosen and fall off, ensuring stable wiring installation and improving the anti-detachment reinforcement of the electrical wiring device body after cable wiring installation during power transmission and transformation engineering installation and use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram of section A; Figure 3 This is a partial cross-sectional view of the external threaded inlet and the junction box body of this utility model. Figure 4 This utility model Figure 3 Enlarged structural diagram of section B; Figure 5 This is a schematic diagram of the internal threaded ring, the engagement plane, and the internal inclined surface structure of this utility model; Figure 6 This utility model Figure 3 Enlarged structural diagram of section C; In the diagram: 100, main body of electrical wiring device; 101, main body of junction box; 1011, sealing ring; 1012, limit mounting groove; 1013, limit mounting screw; 1014, through hole; 1015, internal threaded hole; 102, external threaded inlet; 1021, internal threaded ring; 1022, meshing plane; 1023, internal inclined surface structure; 1024, limit groove; 1025, limit clamping plate; 1026, arc-shaped push block; 1027, ball bearing; 1028, return spring; 103, sealing cover; 104, fixing plate. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1 to 6 This utility model provides a technical solution: an electrical wiring device for power transmission and transformation engineering, including an electrical wiring device body 100, the electrical wiring device body 100 including a junction box body 101, a sealing cover 103 fixedly fixed to the upper surface of the junction box body 101 by fixing screws, fixing plates 104 integrally formed at the bottom ends of both sides of the junction box body 101, and external threaded inlet ports 102 integrally provided at both ends of the junction box body 101. The electrical wiring device body 100 is also provided with: The anti-detachment reinforcement mechanism includes a limiting clamping component located at the inner edge of the external thread inlet 102. The two ends of the limiting clamping component are provided with elastic reset components. The outer surface of the external thread inlet 102 is provided with a screw-in pushing component. After the electrical cable is connected by the electrical wiring device body 100, the cable is reinforced and installed again inside the external thread inlet 102 by the anti-detachment reinforcement mechanism, so that it is not easy to loosen or fall off when subjected to tension.

[0015] In order to facilitate the reinforcement and installation of cables after wiring by using the limiting clamping assembly, in this embodiment, preferably, the limiting clamping assembly includes a limiting groove 1024 opened at the inner edge of the external thread inlet 102, and a limiting clamping plate 1025 is limited inside the limiting groove 1024. The inner surface of the limiting clamping plate 1025 extends into the interior of the external thread inlet 102. After the cable is wired inside the junction box body 101, the limiting clamping plate 1025 is limited and moved inside the limiting groove 1024 to clamp the surface of the cable for reinforcement and installation.

[0016] In order to facilitate the repositioning and closing of the limiting clamping plate 1025 inside the limiting groove 1024 when it is loosened without being tightened, in this embodiment, preferably, the elastic repositioning component includes a repositioning spring 1028 disposed at the connection between the end of the limiting clamping plate 1025 and the inner side of the limiting groove 1024, and the limiting clamping plate 1025 and the interior of the limiting groove 1024 are elastically connected by the repositioning spring 1028, so that when it is loosened without being tightened, the deformation of the repositioning spring 1028 can drive the limiting clamping plate 1025 to be repositioned and closed inside the limiting groove 1024.

[0017] To facilitate the compression and reinforcement installation of the arc-shaped push block 1026 and the limiting clamping plate 1025 via the screw-in pushing assembly, in this embodiment, preferably, the screw-in pushing assembly includes an arc-shaped push block 1026 integrally disposed on the outer surface of the limiting clamping plate 1025. Balls 1027 roll along the surface of the arc-shaped push block 1026 via rolling grooves. An internal threaded ring 1021 is threadedly connected to the outer surface of the external threaded inlet 102. An inner inclined surface structure 1023 is formed at the inner bottom edge of the internal threaded ring 1021, and the inner inclined surface structure 1023 and the ball 1027 are connected... The inner inclined surface structure 1023 of the inner surface of the internal threaded ring 1021 contacts the ball 1027 to press the arc-shaped push block 1026 when the internal threaded ring 1021 is rotated. When the arc-shaped push block 1026 is pressed, it presses the limiting clamping plate 1025 against the surface of the cable. At the same time, it presses multiple limiting clamping plates 1025 to facilitate reinforcement and installation. The outer surface of the internal threaded ring 1021 has two meshing planes 1022 on both sides, and the two meshing planes 1022 are symmetrically arranged, which makes it convenient to lock the wrench on the surface of the two meshing planes 1022 to rotate and adjust the internal threaded ring 1021.

[0018] A sealing mechanism is provided, and the sealing mechanism includes a sealing component disposed on the end surface of the screw-in push assembly. A limit installation component is provided at the connection between the edge of the sealing component and the inside of the screw-in push assembly. After the cable is threaded through the external thread inlet 102 and reinforced, the sealing mechanism presses it tightly against the outer surface of the cable to seal and prevent dust and moisture from entering.

[0019] In order to facilitate the reinforcement and resealing of the external thread inlet 102 and the cable through the sealing assembly, in this embodiment, preferably, the sealing assembly includes a limiting installation groove 1012 opened at the top edge of the inner threaded ring 1021, and the end of the internal threaded ring 1021 is limited and engaged with the sealing ring 1011 by the limiting installation groove 1012. The sealing ring 1011 is limited and installed by the limiting installation groove 1012, and after the reinforcement installation, the inner surface of the sealing ring 1011 is pressed tightly against the outer surface of the cable for sealing and protection, making it difficult for dust and moisture to enter the interior.

[0020] To facilitate the re-positioning and reinforcement of the sealing ring 1011 after installation using the limiting installation assembly, in this embodiment, preferably, the limiting installation assembly includes four limiting installation screws 1013 embedded in the surface of the internal threaded ring 1021. The edge of the sealing ring 1011 has a through hole 1014, and the bottom of the limiting installation groove 1012 has an internal threaded hole 1015 that matches the limiting installation screws 1013. The limiting installation screws 1013 can be screwed into the internal threaded hole 1015 through the through hole 1014 for fixation. At this time, after the limiting installation screws 1013 are fixed, the sealing ring 1011 is limited and installed to prevent deformation and detachment.

[0021] The working principle and usage process of this utility model are as follows: When using this electrical wiring device for power transmission and transformation projects, the main body 100 of the electrical wiring device is first fixedly installed at the location of use by the fixing plate 104. After the fixed installation, when the two ends need to be connected inside the junction box body 101, the cable is extended through the external thread inlet 102 to the inside of the junction box body 101 to complete the connection between the two cables. After the connection is completed, the sealing cover 103 is sealed and fixed on the surface of the junction box body 101, thereby completing the operation of the electrical wiring device main body 100 in the power transmission and transformation project. Then, after the electrical wiring device body 100 has completed the wiring of the cables at both ends, the cables are inside the external thread inlet 102. At this time, the wrench is engaged again on the surfaces of the two meshing planes 1022, causing the internal thread ring 1021 to rotate on the outer surface of the external thread inlet 102. When the internal thread ring 1021 rotates downward, it causes the surface of the inner inclined structure 1023 to contact the ball 1027 and press against the arc-shaped push block 1026. When the arc-shaped push block 1026 moves while pressing, it causes the inner surface of the limiting clamping plate 1025 to move. The clamping plates 1025 are pressed against the outer surface of the cable, which facilitates the simultaneous clamping of multiple limit clamping plates on the surface of the cable for reinforcement and installation. After the cable is connected inside the junction box body 101, the cable is again placed inside the external thread inlet 102 at the end of the junction box body 101 to prevent it from falling off. When subjected to tension, the internal wiring terminals of the junction box body 101 are less likely to loosen or fall off, thus stabilizing the wiring installation and improving the anti-detachment reinforcement of the electrical wiring device body 100 after cable wiring installation during the installation and use of power transmission and transformation projects. Finally, before the electrical wiring device body 100 is installed and used, the sealing ring 1011 is limited and installed on the end surface of the internal thread ring 1021 by the limiting installation groove 1012. The limiting installation screw 1013 is then passed through the through hole 1014, and the bottom end of the limiting installation screw 1013 is threaded into the internal thread hole 1015. At this time, the limiting installation screw 1013 again limits the sealing ring 1011 to prevent deformation and detachment. After the cable is rotated and reinforced inside the external thread inlet 102 and the internal thread ring 1021, the inner surface of the sealing ring 1011 is pressed tightly against the outer surface of the cable for a tight seal. This facilitates the sealing installation of the end of the external thread inlet 102 after reinforcement. After installation, it is not easy for dust and moisture to enter the interior through the end of the external thread inlet 102, effectively sealing and protecting the cable and improving the sealing effect of the electrical wiring device body 100 after cable reinforcement during installation and use in power transmission and transformation projects.

[0022] Although embodiments of the present invention have been shown and described (see the detailed description above), 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. An electrical wiring device for power transmission and transformation engineering, comprising an electrical wiring device body (100), the electrical wiring device body (100) including a junction box body (101), a sealing cover (103) being fixedly fixed to the upper surface of the junction box body (101) by fixing screws, fixing plates (104) integrally formed at the bottom ends of both sides of the junction box body (101), and external threaded inlet ports (102) integrally provided at both ends of the junction box body (101), characterized in that: The electrical wiring device body (100) is also provided with: The anti-detachment reinforcement mechanism includes a limiting clamping component disposed at the inner edge of the external thread inlet (102), the two ends of the limiting clamping component are provided with elastic reset components, and the outer surface of the external thread inlet (102) is provided with a screw-in pushing component; A sealing mechanism, comprising a sealing component disposed on the end surface of a screw-in push assembly, wherein a limit mounting component is provided at the connection between the edge of the sealing component and the interior of the screw-in push assembly.

2. The electrical wiring device for power transmission and transformation engineering according to claim 1, characterized in that: The limiting clamping assembly includes a limiting groove (1024) opened at the inner edge of the external thread inlet (102), and a limiting clamping plate (1025) is limited inside the limiting groove (1024), the inner surface of the limiting clamping plate (1025) extending into the interior of the external thread inlet (102).

3. The electrical wiring device for power transmission and transformation engineering according to claim 2, characterized in that: The elastic reset assembly includes a reset spring (1028) disposed at the connection between the end of the limiting clamping plate (1025) and the inner side of the limiting groove (1024), and the interior of the limiting clamping plate (1025) and the limiting groove (1024) are elastically connected by the reset spring (1028).

4. The electrical wiring device for power transmission and transformation engineering according to claim 2, characterized in that: The rotary push assembly includes an arc-shaped push block (1026) integrally disposed on the outer surface of the limiting clamping plate (1025). A ball (1027) rolls on the surface of the arc-shaped push block (1026) through a rolling groove. An internal thread ring (1021) is threadedly connected to the outer surface of the external thread inlet (102). An inner inclined surface structure (1023) is formed on the inner bottom edge of the internal thread ring (1021), and the inner inclined surface structure (1023) is in contact with the surface of the ball (1027).

5. The electrical wiring device for power transmission and transformation engineering according to claim 4, characterized in that: The outer surface of the internal threaded ring (1021) has two engagement planes (1022) on both sides, and the two engagement planes (1022) are symmetrically arranged.

6. The electrical wiring device for power transmission and transformation engineering according to claim 4, characterized in that: The sealing assembly includes a limiting mounting groove (1012) opened at the top edge of the inner threaded ring (1021), and the end of the inner threaded ring (1021) is limited and engaged with a sealing ring (1011) by the limiting mounting groove (1012).

7. The electrical wiring device for power transmission and transformation engineering according to claim 6, characterized in that: The limiting installation assembly includes four limiting installation screws (1013) embedded in the surface of the internal threaded ring (1021), the edge of the sealing ring (1011) is provided with a through hole (1014), and the bottom of the limiting installation groove (1012) is provided with an internal threaded hole (1015) that matches the limiting installation screws (1013).

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