Concealed cable branch box

Abstract

This utility model discloses a concealed cable branch box, including a pre-buried box and a lifting box. The pre-buried box has a main line inlet on one side and several branch line outlets on the other side. The upper end of the pre-buried box is open. The lifting box is located inside the pre-buried box and has a lifting slide rail. A slider is installed on the lifting slide rail and is driven by a lifting drive mechanism to move on the lifting slide rail. The lifting box contains a copper busbar. One side of the copper busbar has a main line connection part, and the other side has several branch line connection parts. The lifting box has a main line through-hole on one side near the main line connection part and several branch line through-holes on the other side. This concealed cable branch box saves ground space by burying the pre-buried box underground, meeting urban planning and landscape requirements. The lifting box can be raised and lowered, allowing for maintenance without excavation, significantly reducing manpower, time, and environmental interference. The design of the conduit, clamps, and reserved space prevents cables from being pulled loose.

Description

Technical Field

[0001] This utility model belongs to the technical field of cable branch boxes, specifically relating to concealed cable branch boxes. Background Technology

[0002] In power distribution systems, cable distribution boxes are key equipment for cable branching and connection, and are widely used in urban power grids, residential communities, and other scenarios. Currently, most mainstream cable distribution boxes are ground-mounted, which are easy to install, but have obvious drawbacks: First, they occupy ground space and are prone to conflict with traffic and landscape planning in urban core areas, affecting aesthetics; second, they are exposed to the outdoors and are susceptible to aging of the box and component failure due to high temperatures, heavy rain, and impacts, and there is also a risk of accidental contact by personnel. Some solutions attempt to bury the branch boxes underground to solve the space problem, but this brings new challenges: traditional underground branch boxes are fixed and sealed structures, requiring surface excavation for maintenance, which consumes manpower and time and disturbs the surrounding environment; cable connections lack buffer protection and are prone to malfunction due to loosening caused by pulling, and underground moisture can easily cause components to rust; at the same time, some equipment lacks a stable fixed structure and is prone to displacement due to soil settlement, and the control method is also difficult to balance convenience and cost. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a concealed cable branch box, including a pre-embedded box and a lifting box. The pre-embedded box has a bus inlet on one side and several branch outlets on the other side. The upper end of the pre-embedded box is open. The lifting box is located inside the pre-embedded box. The pre-embedded box is equipped with a lifting slide rail. A slider is installed on the lifting slide rail. The slider is driven by a lifting drive mechanism to move on the lifting slide rail. When the slider is at the upper end of the lifting slide rail, the lifting box extends out of the pre-embedded box. When the slider is at the lower end of the lifting slide rail, the lifting box is inside the pre-embedded box. The lifting box is equipped with a copper busbar. One side of the copper busbar is equipped with a bus connection part, and the other side of the copper busbar is equipped with several branch connection parts. The lifting box has a bus passage port on the side near the bus connection part and several branch passage ports on the other side.

[0004] As a preferred embodiment of the above technical solution, the copper busbar is provided with several copper clamps, and the copper clamps are connected to the copper busbar by several bolts.

[0005] As a preferred embodiment of the above technical solution, the bus port and the branch port are respectively provided with cable conduits, and the cable conduits are provided with clamps to fix the cable conduits.

[0006] As a preferred embodiment of the above technical solution, two reserved spaces are provided between the lifting box and the pre-embedded box. The reserved spaces are located on both sides of the lifting box, and the cable conduit extends into the corresponding reserved space.

[0007] As a preferred embodiment of the above technical solution, the lifting drive mechanism includes a motor and a lead screw. The lead screw is rotatably installed in a pre-embedded box, the motor drives the lead screw to rotate, and a lead screw nut is provided on the lead screw, which is fixedly connected to the lifting box.

[0008] As a preferred embodiment of the above technical solution, the lifting box has an opening on one side, and a door is provided at the opening, with some parts of the door hinged to the lifting box.

[0009] As a preferred embodiment of the above technical solution, the lower end of the pre-embedded box is provided with a fixed base.

[0010] The beneficial effects of this utility model are as follows: The concealed cable branch box of this utility model saves ground space by being buried underground, which meets the needs of urban planning and landscape design; the lifting box can be raised and lowered, allowing for operation and maintenance without excavation, greatly reducing manpower, time, and environmental interference. The design of the cable conduit, clamps, and reserved space prevents cables from being pulled loose; the box door and cover provide protection, isolating moisture and external force damage. The fixed base prevents settlement, and the motor or manual control balances convenience and cost, ensuring stable power transmission and improving equipment safety and service life. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the conduit. Detailed Implementation

[0012] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] like Figure 1-3 As shown, a concealed cable branch box includes a pre-embedded box 1 and a lifting box 2. The pre-embedded box 1 has a main cable inlet 3 on one side and several branch cable outlets 4 on the other side. The upper end of the pre-embedded box 1 is open. The lifting box 2 is located inside the pre-embedded box 1. A lifting slide rail 5 is provided inside the pre-embedded box 1, and a slider 6 is installed on the lifting slide rail 5. The slider 6 is driven by a lifting drive mechanism to move on the lifting slide rail 5. When the slider 6 is at the upper end of the lifting slide rail 5, the lifting box 2 extends out of the pre-embedded box 1; when the slider 6 is at the lower end of the lifting slide rail 5, the lifting box 2 is inside the pre-embedded box 1. A copper busbar 7 is provided inside the lifting box 2. A main cable connection part 8 is provided on one side of the copper busbar 7, and several branch cable connection parts 9 are provided on the other side. A main cable passage port 10 is provided on the side of the lifting box 2 near the main cable connection part 8, and several branch cable passage ports are provided on the other side. The pre-embedded box 1 is buried underground. The main cable enters the pre-embedded box 1 through the main cable inlet 3, then enters the lifting box 2 through the main cable passage port 10, and is electrically connected to the main cable connection part 8 of the copper busbar 7. The branch lines that need to be connected pass through branch line outlet 4 and branch line through-hole respectively into the interior of the lifting box 2, and are connected to the branch line connection part 9 of the copper busbar 7. Other electrical components can also be installed inside the lifting box 2. When the cable branch box is not needed, the lifting box 2 is lowered and hidden inside the embedded box 1. To improve the concealment effect, the upper end of the lifting box 2 can cover the cover plate at the upper end of the embedded box 1.

[0016] Furthermore, the copper busbar 7 is provided with several copper clamps 12, and the copper clamps 12 are connected to the copper busbar 7 by several bolts. After the cable is installed with the terminal block, it is clamped between the copper busbars 7 and fixed by bolts passing through the terminal block.

[0017] Furthermore, cable routing conduits 13 are respectively provided at the main bus port 10 and the branch line port, and clamps 14 are provided at the cable routing conduits 13, with the clamps 14 fixedly connected to the cable routing conduits 13. The cables 21 pass through the cable routing conduits 13 and then enter the lifting box 2. One of the annular arms of the clamps 14 is fixedly connected to the cable routing conduits 13 by bolts, and the clamps 14 and cable routing conduits 13 are coaxially arranged. The clamps 14 tightly hold and fix the cables, preventing the connection between the cables and the copper busbars from loosening during up-and-down pulling.

[0018] Furthermore, two reserved spaces 15 are provided between the lifting box 2 and the pre-embedded box 1. The reserved spaces 15 are located on both sides of the lifting box 2, and the cable conduit 13 extends into the corresponding reserved space 15. In order to support the lifting of the lifting box 2, a section of cable is reserved in the reserved space 15, and the reserved space 15 provides sufficient room for the cable to move.

[0019] Furthermore, the lifting drive mechanism includes a motor 16 and a lead screw 17. The lead screw 17 is rotatably mounted in the embedded box 1, and the motor 16 drives the lead screw 17 to rotate. A lead screw nut 18 is provided on the lead screw 17, and the lead screw nut 18 is fixedly connected to the lifting box 2. The motor 16 is controlled by a switch located on the top of the lifting box 2, or by wireless remote control. To save costs, a manual control method can also be used, for example, the upper end of the lead screw 17 extends out of the embedded box 1 and is fixedly connected to a wheel. The lifting box 2 is raised and lowered by manually rotating the wheel.

[0020] Furthermore, the lifting box 2 has an opening on one side, covered by a door 19, which is hinged to the lifting box 2. Opening the door 19 allows for wiring, disassembly, and other operations.

[0021] Furthermore, the lower end of the pre-embedded box 1 is provided with a fixed base 20. When the pre-embedded box 1 is buried underground, concrete is used to cover the fixed base 20, thereby fixing the pre-embedded box 1.

[0022] It is worth mentioning that the technical features such as motors involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field, and should not be regarded as the utility model point of this utility model patent. This utility model patent will not be further elaborated in detail.

[0023] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A concealed cable branch box, characterized in that The device includes a pre-embedded box and a lifting box. The pre-embedded box has a main bus inlet on one side and several branch line outlets on the other side. The upper end of the pre-embedded box is open. The lifting box is located inside the pre-embedded box and has a lifting slide rail inside. A slider is installed on the lifting slide rail and is driven by a lifting drive mechanism to move on the lifting slide rail. When the slider is at the upper end of the lifting slide rail, the lifting box extends out of the pre-embedded box. When the slider is at the lower end of the lifting slide rail, the lifting box is inside the pre-embedded box. The lifting box has a copper busbar inside. One side of the copper busbar has a main bus connection part, and the other side of the copper busbar has several branch line connection parts. The lifting box has a main bus passage port on the side near the main bus connection part and several branch line passage ports on the other side.

2. The concealed cable junction box of claim 1, wherein, The copper busbar is provided with several copper clamps, and the copper clamps are connected to the copper busbar by several bolts.

3. The concealed cable junction box of claim 1, wherein, The bus pass-through port and the branch pass-through port are respectively equipped with cable conduits, and the cable conduits are equipped with clamps to fix the cable conduits.

4. The concealed cable junction box of claim 3, wherein, There are two reserved spaces between the lifting box and the pre-embedded box. The reserved spaces are located on both sides of the lifting box, and the cable conduit extends into the corresponding reserved space.

5. The concealed cable junction box of claim 1, wherein, The lifting drive mechanism includes a motor and a lead screw. The lead screw is rotatably installed in a pre-embedded box. The motor drives the lead screw to rotate. A lead screw nut is provided on the lead screw, and the lead screw nut is fixedly connected to the lifting box.

6. The concealed cable junction box of claim 1, wherein, The lifting box has an opening on one side, and a door is provided at the opening. Some parts of the door are hinged to the lifting box.

7. A concealed cable branch box according to claim 6, wherein The lower end of the pre-embedded box is provided with a fixed base.

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