Power distribution cabinet with cable protection structure

By introducing protective and sealing components into the distribution box, the problems of cable damage caused by bending and moisture intrusion are solved, achieving effective protection and sealing of the cable.

CN224068095UActive Publication Date: 2026-03-31NANJING RUIMI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In existing power distribution boxes, cables are easily squeezed against the edge of the inlet hole due to excessive bending when passing through the box, resulting in cable damage or short circuit, and the protection effect is poor.

Method used

The design incorporates protective and sealing components. The protective component guides and protects the cable through a guide sleeve and adjusting screw system, while the sealing component seals the inlet hole with a sealing airbag to prevent moisture from entering.

Benefits of technology

It effectively reduces cable wear at bends, ensuring that cables do not require significant bending when connected to equipment, thus improving cable protection. Furthermore, the sealed airbag prevents moisture from entering, enhancing the sealing performance of the distribution box.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224068095U_ABST
Patent Text Reader

Abstract

The utility model discloses a power distribution cabinet with a cable protection structure, relates to the technical field of power distribution equipment, and provides the following scheme for solving the problems proposed in the background technology: the power distribution cabinet comprises a power distribution box, the front surface of the power distribution box is rotatably connected with a cabinet door, and the inner bottom wall of the power distribution box is fixedly connected with a protection assembly; the back surface of the distribution box is provided with a plurality of wire inlet holes, and the right side of the distribution box is fixedly connected with a sealing assembly. According to the utility model, through the arrangement of the protection assembly, during use, a cable can be guided and protected by using the guide sleeve, the internal silica gel sheath can reduce the wear of the cable at the bending part, and meanwhile, the front-back position of the guide sleeve can be changed through the slide block after the adjusting screw rod is rotated; therefore, the cable does not need to be greatly bent when electromechanical devices with different sizes are connected, so that the pressure on the surface of the cable is reduced, and the protection effect on the cable is relatively good.
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Description

Technical Field

[0001] This utility model relates to the field of power distribution equipment technology, and in particular to a power distribution box with a cable protection structure. Background Technology

[0002] Distribution boxes are characterized by their small size, easy installation, unique technical performance, fixed location, unique configuration functions, lack of site restrictions, widespread application, stable and reliable operation, high space utilization, small footprint, and environmental benefits. They serve as the control center for the rational distribution of electrical energy among various components in the power supply line, and are the control link that reliably receives power from upstream sources and correctly feeds electrical energy to the load. Therefore, they are commonly found in power engineering.

[0003] In existing power distribution boxes, cables extend through the rear of the box to the inside and connect to the equipment. However, different electromechanical equipment have different sizes, so the bending radius of the cable varies after passing through the box. If the bending radius is too large, it will squeeze the inner edge of the inlet hole, which can easily cause the cable surface to be cut, resulting in cable damage or even short circuit. The protection effect on the cable is poor and there is room for improvement. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a distribution box with a cable protection structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A power distribution box with a cable protection structure includes a power distribution box, a door rotatably connected to the front of the power distribution box, a protective component fixedly connected to the inner bottom wall of the power distribution box, the protective component including a strip frame, a plurality of movable grooves opened on the upper surface of the strip frame, a slider slidably connected to the inner bottom wall of the movable groove, an adjusting screw rotatably connected to the inner wall of the movable groove, a first bevel gear fixedly connected to the surface of the adjusting screw, a plurality of cable inlet holes opened on the back of the power distribution box, and a sealing component fixedly connected to the right side of the power distribution box;

[0007] The protective component is used to guide and protect the cable, and the sealing component is used to seal the inlet hole to prevent moisture from entering.

[0008] Preferably, the slider is threadedly connected to the surface of the adjusting screw, and a rotating rod is rotatably connected to the upper surface of the strip frame at a position corresponding to the movable groove, with a limit plate fixedly connected to the top of the rotating rod.

[0009] Preferably, the upper surface of the limiting plate is threaded with a locking bolt, the upper surface of the strip frame is provided with a plurality of threaded grooves that are adapted to the locking bolt, the bottom end of the rotating rod is fixedly connected with a second bevel gear, the upper surface of the slider is fixedly connected with a guide sleeve, the bottom end of the rotating rod extends into the interior of the movable groove, and the second bevel gear meshes with the first bevel gear.

[0010] Preferably, the guide sleeve is slidably connected to the inner wall of the inlet hole, and a silicone sheath is fixedly connected to the inner wall of the guide sleeve.

[0011] Preferably, the sealing assembly includes an external threaded air inlet, the surface of which is threaded with an internal threaded sleeve, and a sealing airbag is fixedly connected to the inner wall of the inlet hole.

[0012] Preferably, the end of the external threaded air inlet away from the internal threaded sleeve is connected to a delivery pipe, and the surface of the delivery pipe is connected to several air inlet branch pipes. The end of the air inlet branch pipe away from the delivery pipe is connected to the interior of the sealing airbag.

[0013] The beneficial effects of this utility model are as follows:

[0014] With the protective components in place, the cable can be guided and protected by the guide sleeve during use. The internal silicone sheath can reduce the wear of the cable itself at the bend. At the same time, the adjustment screw can be rotated to change the front and back position of the guide sleeve through the slider. This means that when the cable is connected to electromechanical equipment of different sizes, it does not need to be bent significantly, thereby reducing the pressure on the cable surface and providing good protection for the cable.

[0015] With the sealing components in place, during use, air can be inflated into each sealing airbag using the external threaded air inlet, delivery pipe, and air inlet branch pipe. After the sealing airbag expands inside the inlet hole, it can squeeze the cable surface, thereby achieving a sealing effect for the inlet hole and ensuring that moisture does not enter the distribution box through the inlet hole, resulting in a good sealing effect. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a power distribution box with a cable protection structure proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the side cross-section of a strip frame structure of a power distribution box with cable protection structure proposed in this utility model.

[0018] Figure 3 This is a partial rear cross-sectional view of a power distribution box with cable protection structure proposed in this utility model.

[0019] In the diagram: 1. Distribution box; 2. Box door; 3. Inlet hole; 4. Strip frame; 5. Slider; 6. Adjusting screw; 7. First bevel gear; 8. Rotating rod; 9. Limiting plate; 10. Locking bolt; 11. Second bevel gear; 12. Guide sleeve; 13. Silicone sheath; 14. External threaded air inlet; 15. Internal threaded sleeve; 16. Sealing airbag; 17. Delivery pipe; 18. Inlet branch pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1, referring to Figure 1 and Figure 2 A power distribution box with a cable protection structure includes a power distribution box 1. A door 2 is rotatably connected to the front of the power distribution box 1. A protective component is fixedly connected to the inner bottom wall of the power distribution box 1. The protective component includes a strip frame 4. Several movable slots are opened on the upper surface of the strip frame 4. A slider 5 is slidably connected to the inner bottom wall of the movable slot. An adjusting screw 6 is rotatably connected to the inner wall of the movable slot. A first bevel gear 7 is fixedly connected to the surface of the adjusting screw 6. Several inlet holes 3 are opened on the back of the power distribution box 1. A sealing component is fixedly connected to the right side of the power distribution box 1.

[0022] The protective component is used to guide and protect the cable, and the sealing component is used to seal the inlet hole 3 to prevent moisture from entering.

[0023] The slider 5 is threadedly connected to the adjusting screw 6. The upper surface of the strip frame 4 is rotatably connected to the position corresponding to the movable groove. The top of the rotating rod 8 is fixedly connected to the limit plate 9.

[0024] The upper surface of the limiting plate 9 is threaded with locking bolts 10. The upper surface of the strip frame 4 has several threaded grooves that are compatible with the locking bolts 10. The bottom end of the rotating rod 8 is fixedly connected with a second bevel gear 11. The upper surface of the slider 5 is fixedly connected with a guide sleeve 12. The bottom end of the rotating rod 8 extends into the interior of the movable groove. The second bevel gear 11 meshes with the first bevel gear 7. The guide sleeve 12 is slidably connected to the inner wall of the inlet hole 3. The inner wall of the guide sleeve 12 is fixedly connected with a silicone sheath 13. After the limiting plate 9 drives the second bevel gear 11 to rotate through the rotating rod 8, it can drive the adjusting screw 6 to rotate through the first bevel gear 7, thereby driving the slider 5 to move forward. This allows the guide sleeve 12 to change the cable outlet position according to different electromechanical equipment, ensuring that the cable itself does not need to be bent before it can be connected to the electromechanical equipment, thereby improving the protection effect of the cable. The silicone sheath 13 can improve the protection effect of the cable itself, ensuring that the cable will not be greatly worn at the bend in the guide sleeve 12.

[0025] Example 2: Refer to Figure 1 and Figure 3 The sealing assembly includes an external threaded air inlet 14, with an internal threaded sleeve 15 threaded to the surface of the external threaded air inlet 14. A sealing airbag 16 is fixedly connected to the inner wall of the inlet hole 3. After the sealing airbag 16 expands on the inner wall of the inlet hole 3, it can squeeze the surface of the cable, thereby achieving a sealing effect and ensuring that moisture will not enter the distribution box 1 from the inlet hole 3.

[0026] The end of the external threaded air inlet 14 away from the internal threaded sleeve 15 is connected to the delivery pipe 17. Several air inlet branch pipes 18 are connected to the surface of the delivery pipe 17. The end of the air inlet branch pipe 18 away from the delivery pipe 17 is connected to the inside of the sealing airbag 16. The air inlet 14, delivery pipe 17 and air inlet branch pipe 18 can be used to inflate the inside of each sealing airbag 16.

[0027] Working principle: First, the cable is passed through the inlet hole 3 and inserted into the guide sleeve 12. Pushing the cable further in will allow it to exit from the other end of the guide sleeve 12, thus connecting it to the electromechanical equipment inside the distribution box 1. During normal use, if the size of the electromechanical equipment is different, some cables may be bent and squeezed at the inner edge of the top of the guide sleeve 12. Over time, this may cause cable damage or even a short circuit. Therefore, simply rotating the limit plate 9 will cause the limit plate 9 to drive the second bevel gear 11 to rotate via the rotating rod 8. This, in turn, will drive the adjusting screw 6 to rotate via the first bevel gear 7, thus moving the slider 5 forward. The guide sleeve 12 can be freely adjusted according to the position of different electromechanical equipment, ensuring that the cable will not be bent or squeezed when connected to electromechanical equipment in different positions, thus ensuring the protection of the cable and providing high flexibility. At the same time, after the cable passes through the inlet hole 3, it is connected to the air pump through the external thread air inlet 14. The air pump can inflate each sealing airbag 16 through the delivery pipe 17 and the air inlet branch pipe 18, so that each sealing airbag 16 expands in the inlet hole 3 and squeezes the surface of the cable, thereby achieving a sealing effect and ensuring that water vapor will not enter the distribution box 1 from the inlet hole 3, resulting in a better overall sealing effect for the distribution box 1.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A distribution box with a cable protection structure, comprising a distribution box (1), characterized in that, The front of the distribution box (1) is rotationally connected with a box door (2), and the inner bottom wall of the distribution box (1) is fixedly connected with a protection assembly, which comprises a strip-shaped frame (4), a plurality of movable grooves are formed in the upper surface of the strip-shaped frame (4), a sliding block (5) is slidably connected to the inner bottom wall of the movable groove, an adjusting screw (6) is rotationally connected to the inner wall of the movable groove, a first bevel gear (7) is fixedly connected to the surface of the adjusting screw (6), a plurality of wire inlet holes (3) are formed in the back of the distribution box (1), and a sealing assembly is fixedly connected to the right side of the distribution box (1). The protection assembly is used for guiding and protecting the cable, and the sealing assembly is used for sealing the wire inlet hole (3) position to prevent water vapor from entering.

2. The power distribution cabinet with cable protection structure according to claim 1, characterized in that, The sliding block (5) is threadedly connected with the surface of the adjusting screw (6), the upper surface of the strip-shaped frame (4) is rotationally connected with a rotating rod (8) at a position corresponding to the movable groove, and the top end of the rotating rod (8) is fixedly connected with a limiting disc (9).

3. The power distribution cabinet with cable guard structure of claim 2, wherein, The upper surface of the limiting disc (9) is threadedly connected with a locking bolt (10), a plurality of threaded grooves matched with the locking bolt (10) are formed in the upper surface of the strip-shaped frame (4), the bottom end of the rotating rod (8) is fixedly connected with a second bevel gear (11), the upper surface of the sliding block (5) is fixedly connected with a guide sleeve (12), the bottom end of the rotating rod (8) extends into the movable groove, and the second bevel gear (11) is engaged with the first bevel gear (7).

4. The power distribution cabinet with cable guard structure of claim 3, wherein, The guide sleeve (12) is slidably connected with the inner wall of the wire inlet hole (3), and the inner wall of the guide sleeve (12) is fixedly connected with a silica gel sheath (13).

5. The power distribution enclosure with cable guard structure of claim 1, wherein, The sealing assembly comprises an outer threaded air inlet (14), the surface of the outer threaded air inlet (14) is threadedly connected with an inner threaded sleeve (15), and the inner wall of the wire inlet hole (3) is fixedly connected with a sealing air bag (16).

6. A power distribution enclosure having a cable guard structure according to claim 5, wherein, The outer threaded air inlet (14) is in communication with a conveying pipe (17) away from the inner threaded sleeve (15), a plurality of air inlet branch pipes (18) are in communication with the surface of the conveying pipe (17), and one end of the air inlet branch pipe (18) away from the conveying pipe (17) is in communication with the inside of the sealing air bag (16).