Building power supply and distribution cabinet and moisture-proof base thereof

Abstract

The application provides a building power distribution cabinet and a damp-proof base thereof, and belongs to the technical field of power distribution cabinets. The building power distribution cabinet comprises an adjusting mechanism, a sealing assembly and a base body. The adjusting mechanism comprises a base body and a threading hole formed in the bottom of the base body. The inside of the threading hole is provided with an adjusting piece. The top of the adjusting piece is provided with an adjusting plate. The sidewall of the adjusting plate is provided with a limiting assembly for fixing the adjusting plate. The sealing assembly comprises an elastic sealing piece and a supporting rod arranged at the bottom of the base body. The elastic sealing piece and the supporting rod are used for sealing the threading hole. The beneficial effect of the application is that the sealing effect of the cable when penetrating the threading hole is improved by rotating the adjusting plate, moving the two groups of adjusting pieces to adapt to the size of the threading hole, and clamping and sealing the cable. The supporting rod drives the elastic sealing piece to close and shrink and tightly hold the outer circumferential wall of the cable, further improving the overall sealing performance and damp-proof effect of the power distribution cabinet.

Description

Technical Field

[0001] This invention belongs to the field of power distribution cabinet technology, specifically relating to a building power distribution cabinet and its moisture-proof base. Background Technology

[0002] Building power distribution cabinets are the core complete electrical devices in building power distribution systems. As a key node in building power transmission and control, their performance directly determines the stability, safety, and reliability of the building power distribution system. Generally, building power distribution cabinets consist of cabinets, circuit breakers, contactors, relays, instruments, busbars, cables, and various protective components. Their installation locations are diverse, mainly including building power distribution rooms, basements, equipment rooms, and floor distribution rooms. Their core function is to receive, distribute, control, protect, and manage electrical energy within the building, providing a stable and safe power supply for various electrical loads such as lighting, power equipment, office equipment, and fire protection systems.

[0003] In the actual operation of building power supply and distribution systems, the working environment of distribution cabinets is often quite complex, especially in areas such as basements, underground garages, and equipment rooms. Due to poor ventilation and high air humidity, moisture and water vapor are easily generated, and even condensation may occur. Cable connections in distribution cabinets are a crucial component of power distribution systems. Cables typically pass through wiring holes at the bottom of the cabinet and connect to external power sources or electrical equipment. These wiring holes are often of fixed size, meaning their diameter is fixed and cannot be adjusted to accommodate varying cable diameters, quantities, and spacing. When a cable diameter is smaller than the hole diameter, irregular gaps form between the cable and the hole's inner wall. External moisture and water vapor easily penetrate these gaps, causing condensation inside the cabinet. The resulting water droplets adhere to the inner wall of the cabinet and the surfaces of electrical components, leading to dampness and condensation inside the cabinet. This can cause corrosion, aging of electrical components, and short circuits, resulting in poor overall sealing and moisture protection of the distribution cabinet, ultimately affecting the stability and safety of the power supply system.

[0004] Therefore, there is a need for a building power distribution cabinet and its moisture-proof base to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a building power distribution cabinet and its moisture-proof base, which aims to solve the problems mentioned in the background art, such as the fixed size of the wiring holes in existing building power distribution cabinets, inability to adapt to different specifications of cables, poor sealing performance, easy moisture intrusion, aging and short circuit of electrical components, and impact on the stability and safety of the power distribution system.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A moisture-proof base, comprising: An adjustment mechanism includes a base body and a wire hole opened at the bottom of the base body. The wire hole is provided with an adjustment component for adjusting the size of the wire hole. The top of the adjustment component is provided with an adjustment plate, and the side wall of the adjustment plate is provided with a limiting component for fixing the adjustment plate. The sealing assembly includes an elastic seal and a support rod disposed at the bottom of the base body. The elastic seal and the support rod are used to seal the wire hole. An opening and closing assembly for rotating the support rod is provided between the adjusting plate and the support rod.

[0007] As a preferred embodiment of the present invention, the adjusting member has stabilizing grooves that slide inside the base body on both sides, the end of the adjusting member penetrates the inner wall of the wire hole, the top of the adjusting member is fixedly connected to a top rod, and a sealing gasket is fixedly connected to one side of each of the two adjusting members.

[0008] In a preferred embodiment of the present invention, the adjusting plate is rotatably connected to the top of the base body, and an arc-shaped groove is provided on the top of the adjusting plate, and the top rod is slidably connected inside the arc-shaped groove.

[0009] As a preferred embodiment of the present invention, the limiting component includes a circular rack fixedly connected to the side wall of the adjusting plate, and a locking rod extending through the top of the base body, the locking rod being engaged in the tooth groove of the circular rack.

[0010] In a preferred embodiment of the present invention, a limiting plate is fixedly connected to the bottom of the lever, the limiting plate is slidably connected inside the base body, and a return spring is fixedly connected between the limiting plate and the inside of the base body.

[0011] In a preferred embodiment of the present invention, the elastic seal is fixedly connected to the bottom of the base body, a tightening band is fixedly connected to the bottom of the elastic seal, a plurality of support rods are fixedly connected to the side wall of the elastic seal, a shaft is fixedly connected to the side wall of the support rod, and the shaft is rotatably connected inside the base body.

[0012] In a preferred embodiment of the present invention, the opening and closing assembly includes a circular plate rotatably connected inside the base body, and a fixing member is fixedly connected between the circular plate and the adjusting plate.

[0013] In a preferred embodiment of the present invention, a movable rod is slidably connected inside the base body, a connecting rod is fixedly connected to the top of the movable rod, a groove is provided on the top of the circular plate, and the connecting rod is slidably connected inside the groove.

[0014] In a preferred embodiment of the present invention, a round rod is fixedly connected to the end of the movable rod, and a movable groove is provided on the top side of the support rod, with the round rod slidably connected inside the movable groove.

[0015] As a preferred embodiment of the present invention, the base includes the moisture-proof base as described in any one of claims 1-9, and further includes a power distribution cabinet, which is fixedly connected to the top of the base body.

[0016] Compared with the prior art, the beneficial effects of the present invention are: By setting an adjustment component at the cable hole in the base body, and in conjunction with the guiding linkage structure of the adjustment plate and the top rod, the operator can drive the two sets of adjustment components to move smoothly in opposite directions or in different directions according to the diameter, number of cables and spacing between cables, without the need for additional tools. This precisely adapts to the effective size of the cable hole, achieving a tight clamping and sealing of the cable. It solves the problems of poor adaptability and inadequate sealing of existing fixed-size cable holes, thereby improving the sealing effect when the cable passes through the cable hole and blocking the path of moisture intrusion from the source.

[0017] By driving the opening and closing components, the adjusting plate can simultaneously drive the circular plate, movable rod and other components to work together, thereby driving multiple sets of support rods to rotate and close synchronously. At this time, the support rods will precisely drive the elastic seal to close and contract, and the tightening belt will further enhance the contraction force, so that the elastic seal tightly hugs the outer wall of the cable, forming a double sealing barrier, preventing moisture from entering the inside of the distribution cabinet along the gaps in the cable, and further improving the overall sealing performance and moisture-proof effect of the distribution cabinet. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the base body in this invention; Figure 3 This is a cross-sectional structural diagram of the base body in this invention; Figure 4 This is a schematic diagram of the structure of the adjusting component and the elastic sealing component in this invention; Figure 5 This is a schematic diagram of the opening and closing component in this invention; Figure 6 for Figure 3 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Base body; 101. Threading hole; 2. Adjusting component; 201. Top rod; 202. Sealing gasket; 203. Stabilizing groove; 3. Adjusting plate; 301. Arc groove; 4. Limiting component; 401. Circular rack; 402. Locking rod; 403. Limiting plate; 404. Return spring; 5. Elastic seal; 501. Tightening band; 6. Support rod; 7. Opening and closing component; 701. Circular plate; 702. Movable rod; 703. Connecting rod; 704. Slide groove; 705. Shaft; 706. Circular rod; 707. Movable groove; 708. Fixing component. Detailed Implementation

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Example 1

[0022] Reference Figures 1-6 This is the first embodiment of the present invention, which provides a building power distribution cabinet and its moisture-proof base, including an adjustment mechanism. The mechanism includes a base body 1 and a cable hole 101 opened at the bottom of the base body 1. The cable hole 101 is provided with an adjustment member 2 for adjusting the size of the cable hole 101. The top of the adjustment member 2 is provided with an adjustment plate 3, and the side wall of the adjustment plate 3 is provided with a limiting component 4 for fixing the adjustment plate 3. By setting the adjustment member 2 at the cable hole 101 of the base body 1, the relative position of the two sets of adjustment members 2 can be flexibly adjusted according to the diameter, quantity and arrangement spacing of the cables on site by rotating the adjustment plate 3. This adaptively matches the effective diameter of the cable hole 101, realizes reliable clamping and preliminary sealing of the cable, greatly reduces the gap between the cable and the hole wall, and improves the sealing effect of the cable passage.

[0023] The sealing assembly includes an elastic seal 5 and a support rod 6 located at the bottom of the base body 1. The elastic seal 5 and the support rod 6 are used to seal the cable hole 101. An opening and closing assembly 7 for rotating the support rod 6 is provided between the adjusting plate 3 and the support rod 6. The rotation of the adjusting plate 3 synchronously drives the opening and closing assembly 7 to move, so that multiple sets of support rods 6 can rotate and close towards the center synchronously, evenly and smoothly. During this process, the support rod 6 can reliably drive the elastic seal 5 to produce a uniform circumferential contraction and tightly hug the outer peripheral wall of the cable, forming a continuous and gapless annular sealing structure. This further blocks the channels for water vapor and moisture to enter the inside of the distribution cabinet along the gaps in the cable, greatly reducing the risk of condensation, dampness, component corrosion and short circuits inside the cabinet, further improving the overall sealing reliability and long-term moisture-proof effect of the distribution cabinet, and enhancing the operational stability and service life of the equipment in humid environments.

[0024] In use, the cable is first threaded through the cable hole 101, and then the adjusting plate 3 is rotated. The adjusting plate 3 pushes the top rod 201 to move through the arc groove 301, which in turn drives the two sets of adjusting parts 2 to move towards each other until the sealing gasket 202 on the adjusting part 2 tightly fits against the outer wall of the cable, thus achieving a clamping seal on the cable. At the same time, the adjusting plate 3 drives the circular plate 701 to rotate synchronously through the fixing part 708. The circular plate 701 pushes the connecting rod 703 to move through the sliding groove 704, which in turn drives the movable rod 702 to move outward. The movable rod 702 pushes the support rod 6 to rotate inward around the shaft rod 705 through the circular rod 706. The support rod 6 drives the elastic sealing part 5 to close and contract and hug the outer wall of the cable, thus achieving a secondary seal. Finally, the position of the adjusting plate 3 is fixed by the limiting component 4 to ensure a stable sealing state, thereby effectively preventing moisture from entering the inside of the distribution cabinet. Example 2

[0025] Reference Figures 3-6 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides stabilizing grooves 203 on both sides of the adjusting member 2, which slide inside the base body 1. The end of the adjusting member 2 penetrates the inner wall of the wire hole 101, and a top rod 201 is fixedly connected to the top of the adjusting member 2. Sealing gaskets 202 are fixedly connected to the corresponding sides of the two adjusting members 2. The stabilizing grooves 203 are elongated and adapt to the sliding protrusions provided inside the base body 1, which can ensure that the adjusting member 2 moves in a fixed direction during sliding, avoiding deviation, shaking, etc. By providing sealing gaskets 202 on the opposite sides of the adjusting members 2, the sealing gaskets 202 are made of flexible rubber material with anti-slip texture on their surface. When clamping the cable, they can fit tightly against the cable surface, fill the tiny gaps, and form the first sealing barrier. At the same time, the flexible material can effectively buffer the clamping force, avoid excessive clamping force from damaging the cable, and take into account both sealing effect and cable protection.

[0026] The adjusting plate 3 is rotatably connected to the top of the base body 1. The top of the adjusting plate 3 has an arc-shaped groove 301, and the top rod 201 is slidably connected inside the arc-shaped groove 301. By rotating the adjusting plate 3, the top rod 201 on the adjusting component 2 can be driven to slide smoothly along the arc-shaped groove 301. During the sliding process, the top rod 201 is guided by the arc-shaped groove 301, which in turn drives the two adjusting components 2 to move synchronously towards each other until the sealing gasket 202 on the adjusting component 2 tightly adheres to the outer wall of the cable and completely wraps the cable. This effectively seals the cable hole 101, preventing the intrusion of water vapor and moisture from the source, preventing dampness and condensation inside the cabinet, and thus eliminating problems such as cabinet corrosion and short circuits caused by condensation, ensuring the stable operation of the distribution cabinet.

[0027] The limiting component 4 includes a circular rack 401 fixedly connected to the side wall of the adjusting plate 3, and a locking rod 402 extending through the top of the base body 1, which engages with the tooth groove of the circular rack 401. By engaging the locking rod 402 with the tooth groove on the circular rack 401, the rotation angle of the adjusting plate 3 can be precisely limited, preventing the adjusting plate 3 from rotating arbitrarily due to equipment vibration, external force contact, or other factors during operation. This ensures the stable clamping force of the adjusting component 2 on the cable and improves the sealing stability and reliability of the entire device.

[0028] A limiting plate 403 is fixedly connected to the bottom of the locking lever 402. The limiting plate 403 is slidably connected inside the base body 1, and a return spring 404 is fixedly connected between the limiting plate 403 and the interior of the base body 1. During adjustment, pressing the locking lever 402 downwards moves the limiting plate 403 downwards, compressing the return spring 404, causing the locking lever 402 to retract inside the base body 1 and disengage from the toothed groove of the circular rack 401. At this point, the adjusting plate 3 can be rotated flexibly to adjust the position of the adjusting component 2. After adjustment, releasing the locking lever 402 releases the elastic potential energy of the return spring 404, pushing the limiting plate 403 upwards, thereby causing the locking lever 402 to return to its original position. The locking lever 402 will then engage with the corresponding toothed groove of the circular rack 401, re-fixing the adjusting plate 3. The entire operation is convenient and efficient, requiring no additional tools and reducing the workload of the operator.

[0029] The elastic seal 5 is fixedly connected to the bottom of the base body 1. A tightening band 501 is fixedly connected to the bottom of the elastic seal 5. The tightening band 501 is made of highly elastic fiber material and seamlessly connects with the elastic seal 5, possessing excellent shrinkage performance and further enhancing the shrinkage effect of the elastic seal 5. Multiple support rods 6 are fixedly connected to the side wall of the elastic seal 5. A shaft 705 is fixedly connected to the side wall of the support rod 6, and the shaft 705 is rotatably connected inside the base body 1. The elastic seal 5 is made of elastic material. When closed, the elastic seal 5 tightly adheres to the outer wall of the cable, while the elastic tightening band 501 further tightens, together clamping and wrapping the outer wall of the wire, filling the tiny gap between the sealing gasket 202 and the cable, achieving a double seal and further improving the sealing effect.

[0030] The opening and closing assembly 7 includes a circular plate 701 rotatably connected inside the base body 1, and a fixing member 708 is fixedly connected between the circular plate 701 and the adjusting plate 3. By rotating the adjusting plate 3, the fixing member 708 and the circular plate 701 can be driven to rotate synchronously, realizing the linkage between the adjusting mechanism and the sealing assembly, eliminating the need to operate the sealing assembly separately and improving the ease of operation.

[0031] A movable rod 702 is slidably connected inside the base body 1. A connecting rod 703 is fixedly connected to the top of the movable rod 702. A groove 704 is formed on the top of the circular plate 701, and the connecting rod 703 is slidably connected inside the groove 704. By rotating the circular plate 701, the connecting rod 703 on the movable rod 702 can be driven to slide smoothly along the groove 704. During the sliding process, the connecting rod 703 is guided by the groove 704, thereby driving multiple sets of movable rods 702 to move outward synchronously.

[0032] A round rod 706 is fixedly connected to the end of the movable rod 702. A movable groove 707 is opened on the top side of the support rod 6, and the round rod 706 is slidably connected inside the movable groove 707. By moving the movable rod 702 outward, the round rod 706 can be driven to slide smoothly along the movable groove 707. During the sliding process, the round rod 706 will generate a thrust on the inner wall of the movable groove 707, thereby driving the support rod 6 to rotate synchronously around the shaft 705. The rotation angle is precise and controllable. At this time, the closed support rod 6 will drive the elastic seal 5 to contract synchronously, so that the elastic seal 5 and the tightening band 501 tightly clamp and wrap around the outer wall of the wire, achieving further sealing. Together with the sealing gasket 202 on the adjusting component 2, it forms a double sealing barrier, completely blocking the intrusion of moisture and water vapor, and ensuring the safe operation of the electrical components inside the distribution cabinet.

[0033] The system includes the moisture-proof base as described in any one of claims 1-9, and also includes a distribution cabinet, which is fixedly connected to the top of the base body 1. The distribution cabinet adopts existing mature building power supply and distribution structures, and is equipped with various electrical components such as circuit breakers, contactors, and relays, all of which are moisture-proof products, capable of adapting to humid building environments and further improving the moisture-proof performance of the distribution cabinet. The distribution cabinet is a mature existing technology; its electrical connections and specific circuit structure will not be described in detail here.

[0034] In use, first thread the cable through the threading hole 101, ensuring that the cables are not tangled or twisted. Then, press down on the locking lever 402 to retract it into the base body 1, disengaging it from the toothed groove of the circular rack 401 and releasing the limiting constraint on the adjusting plate 3. Next, slowly rotate the adjusting plate 3, causing the top rod 201 to slide smoothly along the arc groove 301. The top rod 201 drives the two adjusting parts 2 to move synchronously towards each other until the sealing gasket 202 on the adjusting parts 2 tightly adheres to the outer wall of the cable, achieving a preliminary seal. At the same time, the adjusting plate 3... The fixing component 708 drives the circular plate 701 to rotate synchronously. The circular plate 701 drives the connecting rod 703 to slide along the slide groove 704, and drives multiple sets of movable rods 702 to move outward synchronously. The movable rod 702 drives the circular rod 706 to slide along the movable groove 707, and causes the support rod 6 to rotate around the shaft 705. After closing, the support rod 6 drives the elastic sealing component 5 and the tightening band 501 to contract synchronously, tightly clamping and wrapping the cable outer wall to achieve further sealing. The double sealing structure can completely block moisture intrusion and ensure the stable operation of the distribution cabinet.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A moisture-proof base, characterized in that: include: The adjustment mechanism includes a base body (1) and a wire hole (101) opened at the bottom of the base body (1). The wire hole (101) is provided with an adjustment member (2) for adjusting the size of the wire hole (101). The top of the adjustment member (2) is provided with an adjustment plate (3). The side wall of the adjustment plate (3) is provided with a limiting component (4) for fixing the adjustment plate (3). The sealing assembly includes an elastic seal (5) and a support rod (6) disposed at the bottom of the base body (1), the elastic seal (5) and the support rod (6) being used to seal the wire hole (101), and an opening and closing assembly (7) for rotating the support rod (6) being provided between the adjusting plate (3) and the support rod (6).

2. The moisture-proof base according to claim 1, characterized in that: The adjusting member (2) has a stabilizing groove (203) that slides inside the base body (1) on both sides. The end of the adjusting member (2) passes through the inner wall of the wire hole (101). The top of the adjusting member (2) is fixedly connected to a top rod (201). A sealing gasket (202) is fixedly connected to one side of each of the two adjusting members (2).

3. A moisture-proof base according to claim 2, characterized in that: The adjusting plate (3) is rotatably connected to the top of the base body (1), and the top of the adjusting plate (3) is provided with an arc groove (301), and the top rod (201) is slidably connected inside the arc groove (301).

4. A moisture-proof base according to claim 3, characterized in that: The limiting component (4) includes a circular rack (401) fixedly connected to the side wall of the adjusting plate (3), and a locking rod (402) passes through the top of the base body (1), the locking rod (402) being engaged in the tooth groove of the circular rack (401).

5. A moisture-proof base according to claim 4, characterized in that: The bottom of the lever (402) is fixedly connected to a limiting plate (403), the limiting plate (403) is slidably connected inside the base body (1), and a reset spring (404) is fixedly connected between the limiting plate (403) and the inside of the base body (1).

6. A moisture-proof base according to claim 1, characterized in that: The elastic seal (5) is fixedly connected to the bottom of the base body (1), and a tightening band (501) is fixedly connected to the bottom of the elastic seal (5). A plurality of support rods (6) are fixedly connected to the side wall of the elastic seal (5), and a shaft (705) is fixedly connected to the side wall of the support rod (6). The shaft (705) is rotatably connected to the inside of the base body (1).

7. A moisture-proof base according to claim 6, characterized in that: The opening and closing assembly (7) includes a circular plate (701) rotatably connected inside the base body (1), and a fastener (708) is fixedly connected between the circular plate (701) and the adjusting plate (3).

8. A moisture-proof base according to claim 7, characterized in that: The base body (1) is slidably connected to a movable rod (702), and a connecting rod (703) is fixedly connected to the top of the movable rod (702). The top of the circular plate (701) is provided with a sliding groove (704), and the connecting rod (703) is slidably connected inside the sliding groove (704).

9. A moisture-proof base according to claim 8, characterized in that: The end of the movable rod (702) is fixedly connected to a round rod (706), and the top side of the support rod (6) is provided with a movable groove (707), and the round rod (706) is slidably connected inside the movable groove (707).

10. A building power distribution cabinet, characterized in that, The device includes the moisture-proof base as described in any one of claims 1-9, and also includes a power distribution cabinet, which is fixedly connected to the top of the base body (1).

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