Building electrical installation pre-plugging engineering junction box
By using an expansion cable tray structure in the junction box and utilizing a screw to drive the expansion and open the sealant, the problem of difficult sealant removal is solved, enabling convenient junction box maintenance and reducing maintenance costs and damage risks.
Patent Information
- Application Number
- CN202422558924.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The sealant in existing junction boxes is difficult to remove during maintenance, which can easily damage the junction box or cables, increasing the complexity and cost of maintenance.
A pre-sealed junction box for building electrical installation was designed. It adopts an expansion through-hole plate structure. The expansion is driven by a screw to open the sealant surface, so that the sealant can be automatically removed, avoiding direct removal.
It reduces the complexity and time cost of maintenance and protects the integrity of junction boxes and cables.
Smart Images
Figure CN223680705U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of junction box, concretely relates to a building electrical installation pre-plugging engineering junction box. BACKGROUND
[0002] At present, in electrical installation engineering, the junction box is used as a container for low-voltage line collection joints. The existing junction box is directly inlaid in the wall of the building, all joints are adopted by winding and twisting, and then the junction box is pressed in the box after being wrapped with an insulating tape. The product is convenient to use, simple in structure, low in price, and has been widely used in building installation engineering. This simple structure of the junction box has been continued to the present.
[0003] The prior art has the following disadvantages: In order to prevent dust, moisture and other sundries from entering the junction box and to protect the internal electrical connection from pollution, the existing engineering junction box usually uses sealing glue or other waterproof materials to pre-plug the cable inlet and the surrounding of the junction box before construction. However, once the sealing glue is solidified, it will be very difficult to remove. In the subsequent maintenance process, when trying to remove the sealing glue, the junction box or the cable may be damaged, and special tools or chemical solvents may need to be used, greatly increasing the complexity and time cost of maintenance.
[0004] Therefore, it is necessary to invent a building electrical installation pre-plugging engineering junction box. UTILITY MODEL CONTENTS
[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a building electrical installation pre-plugging engineering junction box, comprising a junction box, a box cover is installed on the top surface of the junction box, a junction base is fixedly installed on the inner wall bottom surface of the junction box, a junction clamping plate is slidingly installed on the inner wall of the junction box above the junction base, a plurality of slots are arranged on the side of the junction clamping plate and the junction base that are close to each other, openings are arranged on the two sides of the junction box, a cross beam is installed above the openings on the two sides of the junction box, a threaded hole is arranged in the center of the top surface of the cross beam, a screw rod is screwedly installed in the threaded hole of the cross beam, an expansion wire passing plate is fixedly installed below the cross beam, the electric wire can pass through the expansion wire passing plate and be connected to the junction base, and the expansion wire passing plate is used for expanding and supporting the sealing glue on the surface.
[0006] Preferably, the expansion wire passing plate comprises a cross hole plate, the cross hole plate is slidingly installed on the inner wall of the opening of the junction box below the cross beam, a rear panel is fixedly installed on the side of the cross hole plate away from the junction base, and the rear panel is in the form of a chessboard grid structure with spaced-apart hollows.
[0007] Preferably, the cross-hole plate is provided with a plurality of cross-holes on the side surface away from the junction base, and the rear end plate is slidably installed on the inner wall of the junction box opening close to the junction base.
[0008] Preferably, the rear end plate is provided with a plurality of cross rods on the side close to the cross-hole plate, the cross rods pass through the cross-holes on the surface of the cross-hole plate and are fixedly connected with the front panel, the front panel has a chessboard structure with spaced hollows, the front panel is slidably embedded in the hollow part of the rear panel, and the surfaces of the rear end plate, the cross-hole plate, the front panel and the rear panel are provided with wire threading holes.
[0009] Preferably, the expansion wire threading plate comprises a front clamping plate and a rear clamping plate, the front clamping plate is embeddedly installed on the upper middle part of the front panel, the rear clamping plate is embeddedly installed on the upper middle part of the rear panel, the middle part of the side close to each other of the front clamping plate and the rear clamping plate is provided with a slot, and the slots of the front clamping plate and the rear clamping plate can be combined into a frustum socket structure.
[0010] Preferably, the four corners of the side close to each other of the front clamping plate and the rear clamping plate are embeddedly installed with magnetic buckles, the magnetic buckles of the front clamping plate and the magnetic buckles of the rear clamping plate can be magnetically connected, and the combined frustum socket structure of the front clamping plate and the rear clamping plate is located below the threaded perforation of the cross beam.
[0011] Preferably, the expansion wire threading plate comprises a limiting plate, the limiting plate is arranged on the side away from the front clamping plate of the rear clamping plate, the upper end of the limiting plate is fixedly connected with the cross beam, the two sides of the rear end plate are fixedly installed with magnetic strips, the side away from the cross-hole plate of the magnetic strip is provided with a magnetic suction plate, and the magnetic suction plate is fixedly installed on the inner wall of the junction box.
[0012] Preferably, the top surface of the wire clamping plate is provided with a buckle plate above the four corners, the buckle plate is fixedly installed on the inner wall of the junction box, the central part of the buckle plate is provided with a threaded hole, and a screw is threadedly installed in the threaded hole of the buckle plate.
[0013] Preferably, the two sides of the box cover are also provided with fixing holes, the screw rod can screw through the fixing holes on the two sides of the box cover and be threadedly installed in the threaded perforation of the cross beam.
[0014] The utility model discloses a beneficial effect is: before construction, the wire is passed through expansion wire threading plate and is connected to junction base, and the wire entry port around expansion wire threading plate surface is pre -plugged using sealant, when needing to remove sealant in subsequent maintenance process, by rotating screw rod and inserting expansion wire threading plate downwards, make expansion wire threading plate surface expansion and open, and tear apart sealant, reach the effect that sealant is automatically dropped or convenient to tear, avoid the damage of junction box or wire in the process of taking off sealant, reduce the complexity and time cost of maintenance. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The box cover installation drawing of the building electrical installation pre-plugging engineering junction box is provided;
[0016] Figure 2 The bolt installation schematic diagram of the building electrical installation pre-plugging engineering junction box is provided;
[0017] Figure 3 The internal structure plan view of the building electrical installation pre-plugging engineering junction box is provided;
[0018] Figure 4 The explosion view of the expansion threading plate of the building electrical installation pre-plugging engineering junction box is provided;
[0019] Figure 5 The inside view of the expansion threading plate of the building electrical installation pre-plugging engineering junction box is provided;
[0020] Figure 6 The cross-sectional view of the expansion threading plate of the building electrical installation pre-plugging engineering junction box is provided.
[0021] In the figure: junction box 11, box cover 12, buckle plate 13, bolt 14, wiring base 15, wiring clamp plate 16, cross beam 21, screw rod 22, rear clamp plate 23, cross hole plate 24, rear embedded plate 25, front embedded plate 26, front clamp plate 27, cross rod 28, rear end plate 29, magnetic strip 31, magnetic attraction plate 32, limiting plate 33, magnetic buckle 34. DETAILED DESCRIPTION
[0022] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only used for explaining and illustrating the utility model, and are not used for limiting the utility model.
[0023] Example 1
[0024] As Figure 1 - Figure 3As shown, the utility model discloses a kind of building electrical installation pre-plugging engineering junction box in the first aspect embodiment of the utility model, including junction box 11, the junction box 11 top surface is equipped with box cover 12, the junction box 11 inner wall bottom is fixedly installed with wiring base 15, the wiring base 15 upper junction box 11 inner wall is slidably installed with wiring clamp plate 16, the wiring clamp plate 16 and wiring base 15 are arranged with several slot on the side of each other, the junction box 11 both sides are provided with opening, the junction box 11 both sides opening upper installation has crossbeam 21, the crossbeam 21 top surface central portion is provided with screw hole, the screw hole of crossbeam 21 is screw thread installed with screw rod 22, the crossbeam 21 below is fixedly installed with expansion threading plate, wire can pass through the expansion threading plate and access wiring base 15, and the expansion threading plate is used to expand the sealing glue of surface and prop open.
[0025] In the above embodiment, it should be noted that the junction box 11, box cover 12 and crossbeam 21 are made of insulating plastic, and a sealing ring is arranged at the connection between the junction box 11 and the box cover 12; before construction, the wire is passed through the expansion threading plate from both sides of the junction box 11 and accessed into the slot on the top surface of the wiring base 15, the wiring clamp plate 16 is slid downward to clamp the wire connected on both sides, and the sealing glue is used to pre-plug the wire access port around the surface of the expansion threading plate, when the sealing glue needs to be removed in the subsequent maintenance process, the expansion threading plate is inserted downward by rotating the screw rod 22, the surface of the expansion threading plate is expanded and prop open, the sealing glue is pulled apart, so as to achieve the effect of automatic falling off or easy to pull off, avoiding damage to the junction box or wire during the process of removing the glue, reducing the complexity and time cost of maintenance.
[0026] Embodiment 2
[0027] As Figure 1 - Figure 6As shown, a building electrical installation pre-plugging engineering junction box comprises all the contents of embodiment 1, in addition, the expansion threading plate comprises a cross-hole plate 24 which is slidingly installed in the inner wall of the opening of the junction box 11 below the crossbeam 21, a rear panel 25 is fixedly installed on the side of the cross-hole plate 24 away from the junction base 15, the rear panel 25 is in a chessboard structure with spaced hollows, the cross-hole plate 24 is provided with a plurality of cross-holes on the surface of the side away from the junction base 15 which is not covered by the rear panel 25, a rear end plate 29 is slidingly installed on the inner wall of the opening of the junction box 11 on the side of the cross-hole plate 24 close to the junction base 15, a plurality of cross rods 28 are arranged on the side of the rear end plate 29 close to the cross-hole plate 24, the cross rods 28 pass through the cross-holes on the surface of the cross-hole plate 24 and fixedly connect a front panel 26, the front panel 26 is in a chessboard structure with spaced hollows, the front panel 26 is slidingly embedded in the hollow part of the rear panel 25, and the surfaces of the rear end plate 29, the cross-hole plate 24, the front panel 26 and the rear panel 25 are provided with threading holes.
[0028] In the above embodiment, it should be noted that the wires pass through the threading holes on the surfaces of the front panel 26, the rear panel 25, the cross-hole plate 24 and the rear end plate 29 in sequence to access the inside of the junction box 11; in the initial state, the front panel 26 is embedded in the hollow part of the rear panel 25, the front panel 26 and the rear panel 25 form a plane structure, and the combined front panel 26 and rear panel 25 are arranged directly below the crossbeam 21, the sealing glue for pre-plugging is applied around the threading holes on the surfaces of the front panel 26 and the rear panel 25, after the sealing glue solidifies, the front panel 26 and the rear panel 25 are separated by sliding in opposite directions to the sides to achieve the effect of tearing the surface sealing glue; when the front panel 26 slides, the cross rods 28 slide along the inner walls of the cross-holes of the cross-hole plate 24, and at the same time, the cross rods 28 drive the rear end plate 29 to slide close to the cross-hole plate 24, and when the rear panel 25 slides, the cross-hole plate 24 slides close to the rear end plate 29.
[0029] Embodiment 3
[0030] As Figure 1 - Figure 6As shown in FIG. 4, a building electrical installation pre-plugging engineering junction box, comprising the contents of embodiment 2, in addition, the expansion threading plate comprises a front clamping plate 27 and a rear clamping plate 23, the front clamping plate 27 is embedded and installed in the middle of the upper side of the front panel 26, and the rear clamping plate 23 is embedded and installed in the middle of the upper side of the rear panel 25. The middle of the side close to each other of the front clamping plate 27 and the rear clamping plate 23 is provided with a slot, the slot of the front clamping plate 27 and the rear clamping plate 23 can be spliced into a conical socket structure, the four corners of the side close to each other of the front clamping plate 27 and the rear clamping plate 23 are embedded and installed with magnetic buckles 34, the magnetic buckles 34 of the front clamping plate 27 and the magnetic buckles 34 of the rear clamping plate 23 can be magnetically connected, and the spliced conical socket structure of the front clamping plate 27 and the rear clamping plate 23 is located below the threaded hole of the cross beam 21. The expansion threading plate comprises a limiting plate 33, the limiting plate 33 is arranged on the side of the rear clamping plate 23 away from the front clamping plate 27, the upper end of the limiting plate 33 is fixedly connected with the cross beam 21, the magnetic strips 31 are fixedly installed on both sides of the rear end plate 29, the magnetic attraction plate 32 is arranged on the side away from the cross hole plate 24 of the magnetic strip 31, and the magnetic attraction plate 32 is fixedly installed on the inner wall of the junction box 11.
[0031] In the above embodiment, it should be noted that the upper inner diameter of the conical socket structure spliced by the slot of the front clamping plate 27 and the rear clamping plate 23 is equal to the diameter of the screw rod 22, and the lower inner diameter of the conical socket structure is smaller than the diameter of the screw rod 22; in the initial state, the magnetic buckles 34 of the front clamping plate 27 and the magnetic buckles 34 of the rear clamping plate 23 are magnetically connected with each other, the front clamping plate 27 and the rear clamping plate 23 are spliced together, at the same time, the magnetic attraction plate 32 adsorbs the magnetic strip 31, the magnetic strip 31 drives the rear end plate 29 to slide, and the rear end plate 29 drives the cross rod 28, the front panel 26, the front clamping plate 27, the rear clamping plate 23 and the rear panel 25 to move and reset to the initial position; then the screw rod 22 is rotated and inserted into the conical socket between the front clamping plate 27 and the rear clamping plate 23, the screw rod 22 continuously pushes away the front clamping plate 27 and the rear clamping plate 23 downward to achieve the effect of driving the front panel 26 and the rear panel 25 to slide apart in the opposite direction; the limiting plate 33 limits the rear clamping plate 23 to avoid excessive sliding of the rear clamping plate 23, which causes the magnetic buckles 34 on the upper end of the rear clamping plate 23 to be out of the magnetic attraction range of the magnetic buckles 34 of the front clamping plate 27.
[0032] Embodiment 4
[0033] As shown in FIG. 4, a building electrical installation pre-plugging engineering junction box, comprising the contents of embodiment 2, in addition, the expansion threading plate comprises a front clamping plate 27 and a rear clamping plate 23, the front clamping plate 27 is embedded and installed in the middle of the upper side of the front panel 26, and the rear clamping plate 23 is embedded and installed in the middle of the upper side of the rear panel 25. The middle of the side close to each other of the front clamping plate 27 and the rear clamping plate 23 is provided with a slot, the slot of the front clamping plate 27 and the rear clamping plate 23 can be spliced into a conical socket structure, the four corners of the side close to each other of the front clamping plate 27 and the rear clamping plate 23 are embedded and installed with magnetic buckles 34, the magnetic buckles 34 of the front clamping plate 27 and the magnetic buckles 34 of the rear clamping plate 23 can be magnetically connected, and the spliced conical socket structure of the front clamping plate 27 and the rear clamping plate 23 is located below the threaded hole of the cross beam 21. The expansion threading plate comprises a limiting plate 33, the limiting plate 33 is arranged on the side of the rear clamping plate 23 away from the front clamping plate 27, the upper end of the limiting plate 33 is fixedly connected with the cross beam 21, the magnetic strips 31 are fixedly installed on both sides of the rear end plate 29, the magnetic attraction plate 32 is arranged on the side away from the cross hole plate 24 of the magnetic strip 31, and the magnetic attraction plate 32 is fixedly installed on the inner wall of the junction box 11. Figure 1 Figure 3 As shown in FIG. 4, a building electrical installation pre-plugging engineering junction box, comprising the contents of embodiment 2, in addition, the expansion threading plate comprises a front clamping plate 27 and a rear clamping plate 23, the front clamping plate 27 is embedded and installed in the middle of the upper side of the front panel 26, and the rear clamping plate 23 is embedded and installed in the middle of the upper side of the rear panel 25. The middle of the side close to each other of the front clamping plate 27 and the rear clamping plate 23 is provided with a slot, the slot of the front clamping plate 27 and the rear clamping plate 23 can be spliced into a conical socket structure, the four corners of the side close to each other of the front clamping plate 27 and the rear clamping plate 23 are embedded and installed with magnetic buckles 34, the magnetic buckles 34 of the front clamping plate 27 and the magnetic buckles 34 of the rear clamping plate 23 can be magnetically connected, and the spliced conical socket structure of the front clamping plate 27 and the rear clamping plate 23 is located below the threaded hole of the cross beam 21. The expansion threading plate comprises a limiting plate 33, the limiting plate 33 is arranged on the side of the rear clamping plate 23 away from the front clamping plate 27, the upper end of the limiting plate 33 is fixedly connected with the cross beam 21, the magnetic strips 31 are fixedly installed on both sides of the rear end plate 29, the magnetic attraction plate 32 is arranged on the side away from the cross hole plate 24 of the magnetic strip 31, and the magnetic attraction plate 32 is fixedly installed on the inner wall of the junction box 11.
[0034] In the above embodiment, it should be noted that by rotating the bolt 14 downward to achieve the effect of pushing the wire clamp plate 16 downward to compress the wire and the wire base 15, the box cover 12 is fixed on the junction box 11 by the screw rod 22, and by unscrewing the screw rod 22 to disassemble the box cover 12, the screw rod 22 needs to be screwed into the cross beam 21 again after disassembling the box cover 12, in order to facilitate the subsequent triggering of the expansion wire board.
[0035] The use process of the utility model is as follows: the person skilled in the art will pass the wire through the front panel 26, the rear panel 25, the cross hole plate 24 and the wire hole on the surface of the rear end plate 29 from both sides of the junction box 11 in sequence before construction, and connect it into the groove on the top surface of the wire base 15 inside the junction box 11, then rotate the bolt 14 downward to push the wire clamp plate 16 downward to compress the wire and the wire base 15, and use sealant to preseal the wire hole around the front panel 26 and the rear panel 25, when the sealant is solidified and needs to be removed, rotate the screw rod 22 downward into the conical insert hole between the front clamp plate 27 and the rear clamp plate 23, the screw rod 22 continuously pushes the front clamp plate 27 and the rear clamp plate 23 apart, and the front panel 26 and the rear panel 25 slide apart in the opposite direction to the two sides to tear the surface sealant.
[0036] The above is only the preferred embodiment of the utility model, and any person skilled in the art can modify the technical solutions described above or modify them into equivalent technical solutions. Therefore, any simple modification or equivalent replacement according to the technical solutions of the utility model is within the scope of protection required by the utility model.
Claims
1. A building electrical installation pre-plugging engineering junction box, comprising a junction box (11), a box cover (12) is mounted on the top surface of the junction box (11), a junction base (15) is fixedly installed on the inner wall bottom surface of the junction box (11), a junction clamp plate (16) is slidingly installed on the inner wall of the junction box (11) above the junction base (15), and a plurality of slots are arranged on the side of the junction clamp plate (16) and the junction base (15) that are close to each other, characterized in that: The junction box (11) is provided with openings on both sides, and a crossbeam (21) is installed above the openings on both sides of the junction box (11), a threaded hole is formed in the central top surface of the crossbeam (21), a screw rod (22) is screwed into the threaded hole of the crossbeam (21), and an expansion wire passing plate is fixedly installed below the crossbeam (21), through which the electric wire can pass and be connected to the junction base (15), and the expansion wire passing plate is used to expand and support the sealant on the surface. 2. The pre-plugging electrical installation box for building electrical installation according to claim 1, characterized in that: The expansion wire passing plate comprises a cross hole plate (24) which is slidingly installed in the inner wall of the opening of the junction box (11) below the crossbeam (21), and a rear panel (25) is fixedly installed on the side of the cross hole plate (24) away from the junction base (15), and the rear panel (25) is in the form of a chessboard structure with spaced hollows.
3. The pre-plugging electrical installation box of claim 2, wherein: The surface of the side of the cross hole plate (24) away from the junction base (15) and not covered by the rear panel (25) is provided with a plurality of cross holes, and a rear end plate (29) is slidingly installed on the inner wall of the opening of the junction box (11) on the side of the cross hole plate (24) close to the junction base (15).
4. The pre-plugging electrical installation box of claim 3, wherein: The side of the rear end plate (29) close to the cross hole plate (24) is provided with a plurality of cross rods (28), the cross rods (28) pass through the cross holes in the surface of the cross hole plate (24) and fixedly connect a front panel (26), the front panel (26) is in the form of a chessboard structure with spaced hollows, the front panel (26) is slidingly embedded in the hollow part of the rear panel (25), and the surfaces of the rear end plate (29), the cross hole plate (24), the front panel (26) and the rear panel (25) are all provided with wire passing holes.
5. The pre-plugging electrical installation box of claim 4, wherein: The expansion wire passing plate comprises a front clamping plate (27) and a rear clamping plate (23), the front clamping plate (27) is embeddedly installed on the upper middle part of the front panel (26), the rear clamping plate (23) is embeddedly installed on the upper middle part of the rear panel (25), the middle part of the side of the front clamping plate (27) and the rear clamping plate (23) close to each other is provided with a slot, and the slots of the front clamping plate (27) and the rear clamping plate (23) can be combined into a conical taper socket structure.
6. The pre-plugging electrical installation box of claim 5, wherein: The four corners of the side of the front clamping plate (27) and the rear clamping plate (23) close to each other are embeddedly installed with magnetic buckles (34), the magnetic buckles (34) of the front clamping plate (27) and the rear clamping plate (23) can be magnetically connected, and the combined conical taper socket structure of the front clamping plate (27) and the rear clamping plate (23) is located below the threaded hole of the crossbeam (21).
7. The pre-plugging electrical installation box of claim 6, wherein: The expansion wire passing plate comprises a limiting plate (33) which is provided on the side of the rear clamping plate (23) away from the front clamping plate (27), the upper end of the limiting plate (33) is fixedly connected with the crossbeam (21), magnetic strips (31) are fixedly installed on both sides of the rear end plate (29), a magnetic attraction plate (32) is provided on the side of the magnetic strip (31) away from the cross hole plate (24), and the magnetic attraction plate (32) is fixedly installed on the inner wall of the junction box (11).
8. The pre-plugging electrical installation box of claim 1, wherein: The top surface of the terminal clip plate (16) is provided with a buckle plate (13) above the four corners, the buckle plate (13) is fixedly installed on the inner wall of the terminal box (11), the central part of the buckle plate (13) is provided with a threaded hole, and the threaded hole of the buckle plate (13) is threadedly installed with a bolt (14).
9. The pre-plugging electrical installation box of claim 1, wherein: The box cover (12) is also provided with a fixed hole on both sides, and the screw rod (22) can be screwed through the fixed holes on both sides of the box cover (12) and be threadedly installed in the threaded perforation of the cross beam (21).