CN214100724U

CN214100724U - Hidden junction box for power engineering

Info

Publication number: CN214100724U
Application number: CN202023250616.4U
Authority: CN
Inventors: 黄秀斌
Original assignee: Beijing Huachuang Longda Construction Engineering Co ltd
Current assignee: Beijing Huachuang Longda Construction Engineering Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-31
Anticipated expiration: 2030-12-29

Abstract

The utility model belongs to the technical field of electric power engineering construction erection equipment technique and specifically relates to a terminal box is hidden to electric power engineering is related to, including terminal box body and the wire holder of setting in the inside of terminal box body, terminal box body up end is opened, still including setting up the upper cover plate in terminal box body top, paste along the edge of upper cover plate lower surface and be used for waterproof sealing's waterproof sealing strip, thereby reduced the terminal box in the use because rainwater causes the inside circuit of terminal box to damage the possibility that influences the terminal box life-span in getting into the terminal box.

Description

Hidden junction box for power engineering

Technical Field

The application relates to the technical field of electric power engineering construction and installation equipment, in particular to a hidden junction box for electric power engineering.

Background

In the process of electric power construction, electric wires are used by passing through a wire pipe, but the situations that the electric wires are too long or the wire pipe needs to be turned are frequently encountered, and at the moment, a junction box is generally adopted as a transition at the joint of the electric wires.

The terminal box includes terminal box body, connection terminal and wire tube, and the connection terminal setting is in the inside of terminal box body, and the wire tube is connected with the connection terminal, and the electric wire passes the inside at connection terminal interconnect of wire tube.

Aiming at the related technical scheme, the inventor thinks that the existing junction box has poor sealing performance and waterproofness, and the service life of the junction box is influenced by the damage of circuits inside the junction box caused by rainwater entering the junction box.

SUMMERY OF THE UTILITY MODEL

In order to reduce the terminal box in the use because rainwater causes the inside circuit of terminal box to damage thereby influence the possibility of terminal box life-span in getting into the terminal box, this application provides a terminal box is hidden in electric power engineering.

The application provides a hidden terminal box of electric power engineering adopts following technical scheme:

the utility model provides a terminal box is hidden in electric power engineering, includes the terminal box body and sets up at the inside wire holder of terminal box body, and terminal box body up end is opened, still including setting up the upper cover plate in terminal box body top, pastes along the edge of upper cover plate lower surface and is used for waterproof sealing's waterproof sealing strip.

Through adopting above-mentioned technical scheme, inside the cable got into the terminal box body, connect on the connection terminal, the upper cover plate is placed and is sealed the terminal box body in the top of terminal box body, waterproof sealing strip and terminal box body's up end looks butt this moment, waterproof sealing strip has just so improved the leakproofness between upper cover plate and the terminal box body, thereby reduced the possibility that the rainwater got into the terminal box body, thereby reduce the terminal box in the use because the rainwater causes the inside circuit of terminal box to damage the possibility that influences the terminal box life-span in getting into the terminal box.

Preferably, the wire holder includes that the level sets up at the inside lower apron of terminal box body and sets up the multiunit termination on lapping down, and a plurality of entrance holes have all been seted up at two relative lateral walls of terminal box body to multiunit termination in the inside evenly distributed of terminal box body, a plurality of entrance holes and multiunit termination one-to-one on every lateral wall.

Through adopting above-mentioned technical scheme, the cable passes the entrance hole and connects on the termination of terminal box body inside, and termination sets up the multiunit, when a set of termination damages, can use other termination.

Preferably, termination includes two terminal blocks of setting on the terminal box body diapire, and the terminal block is the metal material and is connected with the copper line between two terminal blocks, has the space between two adjacent terminal blocks in two adjacent sets of termination, and the top of terminal block is provided with the subassembly that compresses tightly that is used for compressing tightly the cable on the terminal block.

Through adopting above-mentioned technical scheme, the inside of cable follow the entrance hole entering terminal box body of difference, fixes the cable on the splice block through using the pressure subassembly, is connected with electrically conductive copper line between two splice blocks in the same group termination to form the electric current route with the cable connection on the splice block.

Preferably, the pressing assembly comprises a second pressing block and a second bolt, the second pressing block is arranged below the lower cover plate, a second round hole is formed in the lower cover plate, the second bolt penetrates through the second round hole and is in threaded connection with the lower cover plate, and the second bolt is rotatably connected with the second pressing block.

By adopting the technical scheme, the cable enters the interior of the junction box body through the wire inlet hole, the cable is placed below the second pressing block, the second bolt is rotated to move downwards, and the second pressing block is driven by the second bolt to move towards the direction close to the wire holder; when the second pressing block is abutted to the wiring block, the second bolt is stopped being twisted, so that the possibility of water flow and dust entering the interior of the wiring box body is reduced while the operation safety is improved, and the wiring box is protected.

Preferably, a clamping assembly for clamping the cable is arranged above the wiring block, the clamping assembly is arranged on one side, away from the copper wire, of the pressing assembly, the clamping assembly comprises a U-shaped pressing plate, a first pressing block and a first bolt, the U-shaped pressing plate and the first pressing block are arranged below the lower cover plate, and the first pressing block is arranged above the U-shaped pressing plate and fixedly connected with the U-shaped pressing plate; a first round hole is formed in the lower cover plate, a first bolt is arranged in the first round hole and is in threaded connection with the lower cover plate, and the first bolt is rotationally connected with the first pressing block; the upper surface of the junction block is provided with a pressure plate groove for the support leg of the U-shaped pressure plate to enter, the depth of the pressure plate groove is greater than the length of the support leg of the U-shaped pressure plate, and at the moment, when the upper surface of the first pressure block is abutted against the lower surface of the lower cover plate, the lower end head of the support leg of the U-shaped pressure plate is still located in the pressure plate groove.

Through adopting above-mentioned technical scheme, the cable passes and places between two stabilizer blades of U-shaped clamp plate behind the entrance hole, promotes the U-shaped clamp plate and makes the stabilizer blade of U-shaped clamp plate move to the direction that is close to the clamp plate tank bottom surface in the clamp plate groove, can fix the cable on the connection terminal under the effect of U-shaped clamp plate like this, has reduced because cable and junction block contact failure and can not form the possibility of intercommunication circuit.

Preferably, the lower surface of the second pressing block is provided with a hemispherical pressing groove, the upper surface of the junction block is provided with a hemispherical receiving groove, and the axes of the pressing groove and the receiving groove are collinear.

Through adopting above-mentioned technical scheme, peel off the insulating layer on cable surface, twine the end of a thread of cable into the bulk, the end of a thread removes the top of accepting the groove, and the second briquetting promotes the end of a thread to get into the inside of accepting the groove, and the end of a thread parcel with the cable is accepted the groove and is compressed tightly to the groove, and the stop rotating bolt has at this moment increased the area of contact of cable and junction block like this, has reduced the possibility of contact failure.

Preferably, a blocking block is fixedly connected below the second pressing block, a blocking groove for the blocking block to enter is formed in the upper surface of the wiring block, the depth of the blocking groove is larger than the height of the blocking block, and at the moment, when the upper surface of the second pressing block abuts against the lower surface of the lower cover plate, the lower end face of the blocking block is still located inside the blocking groove; the blocking groove is arranged on one side of the bearing groove close to the copper wire, and the groove wall of the blocking groove close to the bearing groove is tangent to the circumference of the bearing groove.

By adopting the technical scheme, when the thread end of the cable is placed, the thread end is difficult to be placed just above the bearing groove, and the blocking block arranged at the position tangent to the groove wall of the bearing groove blocks the movement of the cable, so that the thread end can be placed just above the bearing groove.

Preferably, the holding tank is arranged between the two pressing plate grooves and penetrates through the end face, close to the wire inlet hole, of the junction block.

Through adopting above-mentioned technical scheme, the cable passes the inside that the entrance hole got into the terminal box body, and the cable is placed inside the holding tank, can reduce the cable to the possibility of being close to the direction skew that compresses tightly the groove, has played the effect of fixed cable.

In summary, the present application has the following technical effects:

1. through setting up the upper cover plate above the terminal box body, it has the waterproof sealing strip who is used for waterproof sealing to paste at the edge of upper cover plate lower surface, thereby has reduced the terminal box in the use because rainwater causes the inside circuit of terminal box to damage the possibility that influences the terminal box life-span in getting into the terminal box.

2. Through having set up the U-shaped clamp plate, fixed cable and connection terminal, reduced the possibility of contact failure.

Drawings

FIG. 1 is an exploded view of the overall structure of the electrical engineering concealed junction box of the present application;

fig. 2 is a top view structural view of the inside of the junction box body of the power engineering concealed junction box of the present application;

FIG. 3 is a partial cross-sectional block diagram of the electrical engineering concealed junction box of the present application;

FIG. 4 is an exploded view of a portion of the electrical engineering concealed junction box of the present application;

fig. 5 is a cross-sectional view of a second bolt and a second press block of the electrical engineering concealed junction box of the present application.

Description of reference numerals: 1. a junction box body; 11. a wire inlet hole; 2. a wire holder; 3. a wiring device; 31. a junction block; 32. a clamping assembly; 321. a U-shaped pressing plate; 322. a first bolt; 323. a first pressing block; 324. a first circular hole; 325. a platen slot; 33. a compression assembly; 331. a second pressing block; 332. a second bolt; 333. a second circular hole; 334. a compaction groove; 335. a receiving groove; 34. a barrier block; 35. a blocking groove; 36. accommodating grooves; 4. a lower cover plate; 5. an upper cover plate; 6. copper wire.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

As shown in fig. 1, the application provides a hidden terminal box of electric power engineering, including terminal box body 1, set up at the inside wire holder 2 of terminal box body 1 and set up upper cover plate 5 in terminal box body 1 top, terminal box body 1 is insulating material, and terminal box body 1 up end is opened, and inside terminal box body 1 was arranged in to the tip of connecting of two cables, wire holder 2 can be connected two cables, and upper cover plate 5 can seal the up end of terminal box body 1.

The edge of following 5 lower surfaces of upper cover plate bonds and has the waterproof sealing strip that is used for waterproof sealing, and after people used 5 butt joint box body 1 of upper cover plate to seal, waterproof sealing strip can promote the leakproofness between upper cover plate 5 and the box body 1 with the up end looks butt of box body 1, and water has reduced the possibility that water enters into box body 1 inside.

As shown in fig. 2 and 3, the wire holder 2 includes a lower cover plate 4 and five sets of wire connection devices 3 arranged on the lower cover plate 4, the lower cover plate 4 is horizontally arranged on the top of the junction box body 1, the peripheral surface of the lower cover plate 4 is attached to the side surface of the junction box body 1, an embedded groove matched with the lower cover plate 4 is formed in the junction box body 1, and the embedded groove penetrates through the upper end surface of the junction box body 1; the wiring device 3 is arranged inside the junction box body 1 and is positioned below the lower cover plate 4, the five wiring devices 3 are sequentially arranged along the horizontal direction, five wire inlet holes 11 are formed in two opposite side surfaces of the junction box body 1, and the positions of the five wire inlet holes 11 on each side surface correspond to the five wiring devices 3 one by one. The cable passes through the wire inlet hole 11 and enters the interior of the junction box body 1, and the wiring device 3 connects the cables penetrated through the two wire inlet holes 11 to form a current path.

As shown in fig. 3 and 4, the wiring device 3 includes two wiring blocks 31 disposed on the bottom surface of the wiring box body 1, the two wiring blocks 31 are disposed close to the two wire inlet holes 11, respectively, the height of the wiring block 31 is lower than the height of the lowest point of the wire inlet hole 11, the wiring block 31 is made of metal, a copper wire 6 is connected between the two wiring blocks 31, and a distance exists between two adjacent wiring blocks 31 in two adjacent sets of wiring devices 3; a clamping assembly 32 is arranged above the junction block 31, and a pressing assembly 33 is arranged on one side of the clamping assembly 32 close to the center of the junction box body 1.

The cables move to the upper surface of the junction blocks 31 through the wire inlet holes 11, the cables are clamped and pressed on the junction blocks 31 through the clamping assemblies 32 and the pressing assemblies 33, copper wires are connected between the two junction blocks 31 of each group of junction devices 3, and therefore the cables connected to each group of junction devices 3 form a current path.

The clamping assembly 32 comprises a U-shaped pressing plate 321, a first pressing block 323 and a first bolt 322, the U-shaped pressing plate 321 and the first pressing block 323 are arranged below the lower cover plate 4, and the first pressing block 323 is arranged above the U-shaped pressing plate 321 and fixedly connected with the U-shaped pressing plate 321; a first round hole 324 is formed in the lower cover plate 4, a first bolt 322 is arranged in the first round hole 324 and is in threaded connection with the lower cover plate 4, and the first bolt is rotatably connected with a first pressing block 323; the upper surface of the junction block 31 is provided with a pressing plate groove 325 for the support leg of the U-shaped pressing plate 321 to enter, the depth of the pressing plate groove 325 is greater than the length of the support leg of the U-shaped pressing plate 321, and when the upper surface of the first pressing block 323 abuts against the lower surface of the lower cover plate 4, the lower end of the support leg of the U-shaped pressing plate 321 is still located inside the pressing plate groove 325.

The cable passes through the wire inlet hole 11 and is located between the two support legs of the U-shaped pressing plate 321, the first bolt 322 is rotated to move downwards, the first bolt 322 is rotatably connected with the first pressing block 323, and the first pressing block 323 is fixedly connected with the U-shaped pressing plate 321, so that the lower end heads of the support legs of the U-shaped pressing plate 321 move towards the bottom surface close to the pressing plate groove 325, when the U-shaped pressing plate 321 clamps the cable, the first bolt 322 stops rotating, and at the moment, the clamping assembly 32 can fix the cable on the wiring block 31.

The wire connecting block 31 is provided with a holding groove 36, the holding groove 36 is in a semi-cylindrical shape, the holding groove 36 is arranged between the two pressing plate grooves 325, and the holding groove 36 penetrates through one end face of the wire connecting block 31 close to the wire inlet hole 11. When the cable enters the inside of the terminal block body 1 and moves on the terminal block 31, the receiving groove 36 can reduce the possibility that the cable is shifted to a direction close to the pressing plate groove 325, and further fix the cable.

As shown in fig. 4 and 5, the pressing assembly 33 includes a second pressing block 331 and a second bolt 332, the second pressing block 331 is disposed below the lower cover plate 4, a second circular hole 333 is formed in the lower cover plate 4, and the second bolt 332 passes through the second circular hole 333 and is in threaded connection with the lower cover plate 4; the second bolt 332 is rotatably connected with the second pressing block 331; the lower surface of the second pressing block 331 is provided with a hemispherical pressing groove 334, the upper surface of the junction block 31 is provided with a hemispherical receiving groove 335, and the axes of the pressing groove 334 and the receiving groove 335 are collinear.

Stripping off an insulating layer on the surface of the cable, winding the wire head into a ball shape, and enabling the cable to pass through the wire inlet hole 11 to enable the wire head to move above the bearing groove 335; the second bolt 332 is rotated to move downwards, so that the second pressing block 331 in threaded connection with the second bolt 332 is driven to move downwards; when the lower surface of the second pressing block 331 abuts against the upper surface of the wire holder 2, the second bolt 332 stops rotating, and the receiving groove 335 and the pressing groove 334 fixedly wrap the wire end of the cable, so that the contact area of the cable and the wire holder 2 is increased, and the possibility of poor contact is reduced.

In order to move the end of the cable just above the receiving groove 335, a blocking block 34 is fixedly connected below the second pressing block 331; a blocking groove 35 for the blocking block 34 to enter is formed in the upper surface of the wiring block 31, the depth of the blocking groove 35 is greater than the height of the blocking block 34, and when the upper surface of the second pressing block 331 abuts against the lower surface of the lower cover plate 4, the lower end surface of the blocking block 34 is still located inside the blocking groove 35; the blocking groove 35 is arranged on one side of the receiving groove 335 close to the copper wire 6, and the groove wall of the blocking groove 35 close to the receiving groove 335 is tangent to the circumference of the receiving groove 335. The second bolt 332 is rotated to move the second bolt 332 downwards, the second bolt 332 is fixedly connected with the second pressing block 331, the second pressing block 331 is fixedly connected with the blocking block 34, and at the moment, the blocking block 34 moves towards the direction close to the bottom surface of the blocking groove 35, so that the blocking block 34 can block the movement of the thread end, and the thread end can be placed just above the bearing groove 335.

To sum up, the application process of this application is: the cable with the wire head wound into a sphere passes through different wire inlet holes 11 to enter the interior of the junction box body 1, when the wire head cannot move inwards, the first bolt 322 and the second bolt 332 are sequentially twisted, the first bolt 322 and the second bolt 332 drive the first pressing block 323 and the second pressing block 331 to move downwards until the bolts cannot be twisted, at the moment, the cable is clamped by the U-shaped pressing plate 321 and is pressed by the second pressing block 331, and a current path is formed in the interior of the junction box body 1. Place upper cover plate 5 at the upper surface of terminal box body 1, waterproof sealing strip plays waterproof sealing's effect to terminal box body 1.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. The utility model provides a terminal box is hidden in electric power engineering, includes terminal box body (1) and sets up at inside wire holder (2) of terminal box body (1), and terminal box body (1) up end is open, its characterized in that: the waterproof terminal box is characterized by further comprising an upper cover plate (5) arranged above the terminal box body (1), and a waterproof sealing strip for waterproof sealing is pasted along the edge of the lower surface of the upper cover plate (5).

2. The electrical engineering concealed junction box of claim 1, wherein: wire holder (2) are including the level setting at inside lower apron (4) of terminal box body (1) and set up multiunit termination (3) on apron (4) down, and multiunit termination (3) are at terminal box body (1) inside evenly distributed, have all seted up a plurality of entrance holes (11) at two relative lateral walls of terminal box body (1), a plurality of entrance holes (11) and multiunit termination (3) one-to-one on every lateral wall.

3. The electrical engineering concealed junction box of claim 2, wherein: termination (3) are including two terminal blocks (31) of setting on terminal box body (1) diapire, and terminal block (31) are the metal material and are connected with copper line (6) between two terminal blocks (31), have the space between two adjacent terminal blocks (31) in two sets of adjacent termination (3), and the top of terminal block (31) is provided with and is used for compressing tightly subassembly (33) that compress tightly on terminal block (31) with the cable.

4. The electrical engineering concealed junction box of claim 3, wherein: the pressing assembly (33) comprises a second pressing block (331) and a second bolt (332), and the second pressing block (331) is arranged below the lower cover plate (4); a second round hole (333) is formed in the lower cover plate (4), a second bolt (332) penetrates through the second round hole (333) and is in threaded connection with the lower cover plate (4), and the second bolt (332) is in rotary connection with the second pressing block (331).

5. The electrical engineering concealed junction box of claim 4, wherein: a clamping assembly (32) for clamping the cable is arranged above the junction block (31), and the clamping assembly (32) is arranged on one side, away from the copper wire (6), of the pressing assembly (33); the clamping assembly (32) comprises a U-shaped pressing plate (321), a first pressing block (323) and a first bolt (322), the U-shaped pressing plate (321) and the first pressing block (323) are arranged below the lower cover plate (4), and the first pressing block (323) is arranged above the U-shaped pressing plate (321) and fixedly connected with the U-shaped pressing plate (321); a first round hole (324) is formed in the lower cover plate (4), a first bolt (322) is arranged in the first round hole (324) and is in threaded connection with the lower cover plate (4), and the first bolt (322) is rotationally connected with a first pressing block (323); the upper surface of the junction block (31) is provided with a pressure plate groove (325) for the support leg of the U-shaped pressure plate (321) to enter, and the depth of the pressure plate groove (325) is greater than the length of the support leg of the U-shaped pressure plate (321); when the upper surface of the first pressing block (323) is abutted against the lower surface of the lower cover plate (4), the lower ends of the legs of the U-shaped pressing plate (321) are still positioned in the pressing plate groove (325).

6. The electrical engineering concealed junction box of claim 4, wherein: the lower surface of the second pressing block (331) is provided with a hemispherical pressing groove (334), the upper surface of the junction block (31) is provided with a hemispherical bearing groove (335), and the axes of the pressing groove (334) and the bearing groove (335) are collinear.

7. The electrical engineering concealed junction box of claim 6, wherein: a blocking block (34) is fixedly connected below the second pressing block (331), a blocking groove (35) for the blocking block (34) to enter is formed in the upper surface of the wiring block (31), the depth of the blocking groove (35) is larger than the height of the blocking block (34), and at the moment, when the upper surface of the second pressing block (331) abuts against the lower surface of the lower cover plate (4), the lower end face of the blocking block (34) is still located inside the blocking groove (35); the blocking groove (35) is arranged on one side of the bearing groove (335) close to the copper wire (6), and the groove wall of the blocking groove (35) close to the bearing groove (335) is tangent to the circumference of the bearing groove (335).

8. The electrical engineering concealed junction box of claim 5, wherein: an accommodating groove (36) is formed in the wiring block (31), the accommodating groove (36) is arranged between the two pressing plate grooves (325), and the accommodating groove (36) penetrates through the end face, close to the wire inlet hole (11), of the wiring block (31).