Distribution box with protection function

By designing an inlet protection mechanism, an adaptive seal is achieved using inflatable components and sealing airbags, solving the problems of air leakage, water leakage, and wire entanglement at the inlet of traditional distribution boxes, thus improving the protection performance and maintenance efficiency of the distribution box.

CN224264473UActive Publication Date: 2026-05-19LUAN KNAIDE ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUAN KNAIDE ELECTRIC CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The sealing rings at the inlet of traditional distribution boxes are difficult to adaptively adjust the thickness of the wires, leading to air and water leaks and tangled multi-strand distribution wires, increasing the difficulty of maintenance.

Method used

It adopts an inlet protection mechanism, including an inlet ring, a wire clamping groove, a sealing airbag, and an inflation component. The state of the sealing airbag is adjusted by the inflation component to achieve a 360° wrap-around seal, which can adapt to different wire thicknesses and neatly store the power distribution wires.

Benefits of technology

It effectively solves air and water leakage problems, improves protective performance, reduces maintenance difficulty, improves maintenance efficiency, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a distribution box with a protection function, which belongs to the technical field of distribution boxes, and comprises a distribution box body, one side of the distribution box body is provided with an incoming line protection mechanism, the incoming line protection mechanism comprises an incoming line ring, a line clamping groove, a sealing air bag and an air inflation assembly, the incoming line ring is embedded and fixed in a line inlet of the distribution box body, and the air inflation assembly is arranged in the line clamping groove. The wire clamping groove is formed in the inner ring wall of the wire inlet ring, the sealing air bag is arranged in the wire inlet ring, and the inflation assembly is arranged on the upper portion of the wire inlet ring. The limit of a traditional rubber sealing ring is broken through by arranging the incoming line protection mechanism, the sealing air bag is inflated through the inflation assembly, 360-degree surrounding type sealing is achieved, self-adaptive adjustment can be achieved according to the thickness of a wire, the problems of gap air leakage and water leakage caused by uneven thickness of the wire or installation deviation are effectively solved, and the service life of the wire is prolonged. The protection performance of the distribution box is significantly improved, and a stable and reliable operation environment is provided for internal electrical elements.
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Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, specifically a distribution box with protective functions. Background Technology

[0002] In modern power systems, distribution boxes, as key equipment for power distribution and control, are widely used in various buildings such as industrial, commercial, and residential buildings. They integrate various electrical components such as circuit breakers, fuses, and relays, and undertake the functions of receiving, distributing, and protecting electrical energy, playing a vital role in ensuring the safe and stable operation of the power system.

[0003] With the increasing complexity of power facility usage scenarios, outdoor distribution boxes face various environmental challenges such as humidity, dust, and rain erosion. The inlet port, as a crucial connection between the outside world and the internal electrical components, is traditionally protected by rubber sealing rings. However, due to significant differences in wire thickness and specifications across different usage scenarios, these rubber sealing rings cannot adaptively adjust to wire thickness. Furthermore, they do not facilitate flexible switching and effective protection of the power distribution line's access status. Gaps between the wire and the sealing ring easily lead to air and water leaks, allowing external moisture, dust, and other impurities to enter the distribution box, causing electrical component malfunctions such as dampness and short circuits. In addition, multiple power distribution wires at the inlet port can easily become tangled, resulting in chaotic wiring, unclear application functions, and significantly increased difficulty and time spent troubleshooting during maintenance. Therefore, a protective distribution box is needed to address the problems existing in current technology. Utility Model Content

[0004] The purpose of this utility model is to provide a distribution box with protective functions to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a distribution box with protective function, comprising a distribution box body, wherein an inlet protection mechanism is provided on one side of the distribution box body, the inlet protection mechanism comprising an inlet ring, a wire clamping groove, a sealing airbag and an inflation component, the inlet ring being embedded and fixed in the inlet of the distribution box body, the wire clamping groove being formed on the inner ring wall of the inlet ring, the sealing airbag being disposed inside the inlet ring, and the inflation component being disposed on the upper part of the inlet ring.

[0006] Preferably, the inflation assembly includes a piston cylinder and a piston head, the upper part of the inlet ring is provided with a positioning assembly port, the piston cylinder is fixed in the positioning assembly port of the inlet ring, and the piston head slides inside the piston cylinder.

[0007] Preferably, a rotating block is rotatably connected inside the piston head, and a threaded seat is fixed to the upper end face of the piston cylinder.

[0008] Preferably, the threaded seat has an internal threaded connection to a threaded operating rod, and one end of the threaded operating rod that extends into the piston cylinder is fixed at the center of the end face of the rotating block.

[0009] Preferably, an inflation hole is provided between the sealing airbag and the piston cylinder, and the sealing airbag is connected to the piston cylinder.

[0010] Preferably, a distribution box door is rotatably connected to one side of the distribution box, and the cable slot is circumferentially located on the inner ring wall of the inlet ring.

[0011] This utility model provides a distribution box with protective functions, which has the following advantages compared with the prior art:

[0012] By incorporating an inlet protection mechanism, the limitations of traditional rubber sealing rings are overcome. The air-filled sealing bladder is inflated by an inflation component, creating a 360° surround seal. This mechanism can adaptively adjust to the thickness of the wires, effectively solving the problems of air and water leakage caused by uneven wire thickness or installation deviations. This significantly improves the protection performance of the distribution box and provides a stable and reliable operating environment for the internal electrical components.

[0013] By inflating the components and the inlet ring, the sealing airbag neatly stores the power distribution wires in the slots on the inner wall of the inlet ring, preventing multiple wires from becoming tangled and obscuring their function. This greatly reduces the difficulty of troubleshooting during maintenance, shortens maintenance time, improves maintenance efficiency, and lowers maintenance costs. The piston head and piston cylinder work together to precisely control the inflation degree of the sealing airbag, allowing for flexible switching between power distribution wire access states. When adding, replacing, or repairing power distribution wires, deflating the airbag makes it level for easy operation. After use, the airbag is inflated and sealed to ensure protective effectiveness. The system is simple to operate and highly practical. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional cross-sectional view of the inlet ring structure of this utility model;

[0016] Figure 3 This is a three-dimensional view of the sealing airbag structure of this utility model;

[0017] Figure 4 This is a perspective view of the threaded operating rod structure of this utility model.

[0018] In the diagram: 1. Distribution box body; 2. Distribution box door; 3. Incoming line protection mechanism; 4. Incoming line ring; 5. Wire clamping groove; 6. Sealing airbag; 7. Inflation assembly; 8. Piston cylinder; 9. Threaded seat; 10. Threaded operating rod; 11. Piston head; 12. Rotating block; 13. Inflation hole; 14. Positioning assembly port. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a distribution box with protective function, including a distribution box body 1. The distribution box body 1 serves as the main structure of the entire distribution box and is used to install and accommodate internal electrical components (such as switches, wiring, etc.). A wire inlet protection mechanism 3 is provided on one side of the distribution box body 1. The wire inlet protection mechanism 3 includes a wire inlet ring 4, a wire clamping groove 5, a sealing airbag 6, and an inflation component 7. The wire inlet ring 4 is embedded and fixed in the wire inlet of the distribution box body 1, providing a fixed wire passage for the wire and ensuring a stable wire inlet position. The wire clamping groove 5 is opened on the inner ring wall of the wire inlet ring 4. The sealing airbag 6 is located inside the wire inlet ring 4. The inflation component 7 is located on the upper part of the wire inlet ring 4. After inflation, it surrounds the wire 360° and fills the gap between the inner cavity of the wire inlet ring and the wire, solving the problem of air and water leakage caused by uneven wire thickness or installation deviation of traditional rubber sealing rings.

[0021] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the inflation assembly 7 includes a piston cylinder 8 and a piston head 11. The upper part of the inlet ring 4 has a positioning assembly port 14. The piston cylinder 8 is fixed in the positioning assembly port 14 of the inlet ring 4. The piston head 11 slides inside the piston cylinder 8. A rotating block 12 is rotatably connected inside the piston head 11. A threaded seat 9 is fixed on the upper end face of the piston cylinder 8. A threaded operating rod 10 is threadedly connected inside the threaded seat 9. One end of the threaded operating rod 10, which extends into the piston cylinder 8, is fixed at the center of the end face of the rotating block 12. An inflation hole 13 is provided between the sealing airbag 6 and the piston cylinder 8. The sealing airbag 6 is connected to the piston cylinder 8. The inflation assembly 7 inflates or deflates the sealing airbag through a mechanical structure to achieve airbag status control. The inflation assembly drives the sealing airbag to expand, tightly fitting the wire to form a dynamic seal, adapting to wires of different thicknesses and improving the waterproof and dustproof level.

[0022] Further as Figure 1 As shown, it is worth noting that the distribution box 1 is rotatably connected to a distribution box door 2 on one side. The wire slots 5 are distributed circumferentially along the inner ring wall of the inlet ring to accommodate multiple strands of distribution wires, so that the wires are arranged in an orderly manner according to the position of the slots, avoiding mutual entanglement and facilitating quick location of specific lines during maintenance.

[0023] This solution has the following working process: Before use, the power distribution wire is inserted into the gap between the sealing airbag 6 and the inlet ring 4 and then enters the interior of the distribution box 1. Then, the threaded operating rod 10 is rotated, which drives the rotating block 12 to rotate inside the piston head 11. The threaded operating rod 10 is rotated along the threaded seat 9 to push the piston head 11 to make piston movement along the piston cylinder 8. This can inflate the sealing airbag 6 and make it bulge. The bulging sealing airbag 6 fills the inner cavity of the inlet ring 4 and can squeeze and limit the power distribution wire. At the same time, the sealing airbag 6 can adaptively form a 360° wrap-around seal by controlling the inflation amount, which solves the problem of air leakage and water leakage caused by uneven wire thickness or installation deviation of traditional rubber sealing rings.

[0024] When the power distribution cable is inserted into the inlet ring 4, the power distribution cable is neatly stored in the various cable clamping grooves 5 on the inner wall of the inlet ring 4 under the filling effect of the sealing air bladder 6. This can reduce the trouble caused by multiple power distribution cables tangling together, which makes it difficult to conduct targeted inspections during maintenance. In addition, by the piston head 11 cooperating with the piston of the piston cylinder 8, the inflation and alignment of the sealing air bladder 6 can be controlled to switch the state of whether the power distribution cable is used or not.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A distribution box with protective function, comprising a distribution box body (1), characterized in that: The distribution box (1) is provided with an inlet protection mechanism (3) on one side. The inlet protection mechanism (3) includes an inlet ring (4), a wire clamping groove (5), a sealing airbag (6), and an inflation component (7). The inlet ring (4) is embedded and fixed in the inlet of the distribution box (1). The wire clamping groove (5) is opened on the inner ring wall of the inlet ring (4). The sealing airbag (6) is located inside the inlet ring (4). The inflation component (7) is located on the upper part of the inlet ring (4).

2. A distribution box with protective function according to claim 1, characterized in that: The inflation assembly (7) includes a piston cylinder (8) and a piston head (11). The upper part of the inlet ring (4) is provided with a positioning assembly port (14). The piston cylinder (8) is fixed in the positioning assembly port (14) of the inlet ring (4). The piston head (11) slides inside the piston cylinder (8).

3. A distribution box with protective function according to claim 2, characterized in that: The piston head (11) is rotatably connected to a rotating block (12), and the upper end face of the piston cylinder (8) is fixed with a threaded seat (9).

4. A distribution box with protective function according to claim 3, characterized in that: The threaded seat (9) is internally threaded with a threaded operating rod (10), and one end of the threaded operating rod (10) extending into the piston cylinder (8) is fixed at the center of the end face of the rotating block (12).

5. A distribution box with protective function according to claim 4, characterized in that: An inflation hole (13) is provided between the sealing airbag (6) and the piston cylinder (8), and the sealing airbag (6) and the piston cylinder (8) are connected.

6. A distribution box with protective function according to claim 1, characterized in that: The distribution box (1) is rotatably connected to a distribution box door (2) on one side, and the wire slot (5) is circumferentially located on the inner ring wall of the inlet ring (4).