A wiring structure for a power distribution cabinet

Abstract

This utility model discloses a wiring structure for a power distribution cabinet, relating to the technical field of wiring devices. The utility model includes a movable plate, with terminals mounted on its top. The movable block, upper clamping block, lifting block, and limiting rod of this utility model can simultaneously place, fix, and move multiple wires. During wiring, the lifting block moves, first causing the sealing plate to move via the squeezing plate and trapezoidal block, thus releasing the seal on the wire socket. When the connection is canceled and the wire is removed from the socket, the squeezing spring causes the sealing plate to reset, automatically canceling or sealing the wire socket. This effectively prevents debris from entering without repeatedly inserting and removing the protective plug. Furthermore, when there is no wire on the lower clamping block, the descent height of the squeezing plate changes, causing misalignment between the squeezing plate and the trapezoidal block, thus preventing the unsealing of unconnected wire sockets without separate adjustment.

Description

Technical Field

[0001] This utility model relates to the field of wiring device technology, specifically to a wiring structure for a power distribution cabinet. Background Technology

[0002] A distribution cabinet is a complete set of equipment that centrally installs electrical components such as circuit breakers, disconnectors, and contactors. Its main function is to distribute the total electrical energy of the power grid to various branch circuits. At the same time, in order to realize the connection between the power grid lines and various electrical components and the orderly transmission of electrical energy, its internal wiring structure connects the various lines.

[0003] The prior art patent CN222301101U discloses a wiring device for a power distribution cabinet. This device, through a limiting frame, slide rail, base plate, movable plate, L-shaped locking block, wiring terminals, wire sockets, trapezoidal slide groove, fixing components, first clamping plate, limiting hole, fixing rod, spring, limiting ring, driving block, first locking plate, first limiting piece, second clamping plate, second locking plate, second limiting piece, first magnetic block, clamping block, and fixing block, facilitates the installation and removal of wires connected within the wiring device, improving its convenience. However, during installation and maintenance, the inverter's wiring slots, being exposed to the external environment, are highly susceptible to dust intrusion, which can form an insulating or oxide layer, hindering current conduction. This leads to increased contact resistance, causing localized overheating, voltage instability, and even intermittent power outages or abnormal operation. Therefore, existing protective measures use plug-in protective plugs for sealing to prevent dust intrusion. However, this requires repeated plugging and unplugging of the protective plugs, increasing labor intensity and reducing overall installation and maintenance efficiency, making it inconvenient to use. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a wiring structure for a power distribution cabinet. This structure solves the problem that during installation and maintenance, the inverter's wiring slots are exposed to the external environment, making them susceptible to dust intrusion and affecting subsequent normal operation. While some systems use protective plugs for sealing, this requires repeated insertion and removal of the plugs by staff, increasing labor intensity, reducing overall installation and maintenance efficiency, and making the system inconvenient to use.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a wiring structure for a power distribution cabinet, including a movable plate, a terminal block installed on the top of the movable plate, multiple wire sockets on the side of the terminal block, a movable block movably arranged above the movable plate, two rectangular columns installed on the top of the movable block, a lifting block slidably installed on the two rectangular columns, a fixing and pressing mechanism jointly provided on the movable block and the lifting block, a U-shaped frame installed on the top of the terminal block, and a movable sealing mechanism provided on the U-shaped frame.

[0006] Preferably, the fixed extrusion mechanism includes multiple lower clamping blocks installed on the top of the movable block, multiple lifting holes are opened on the top of the lifting block, and movable blocks are slidably installed on each of the multiple lifting holes. Upper clamping blocks and lifting plates are respectively installed on the bottom and bottom of the multiple movable blocks, and extrusion plates are installed on the sides of the multiple lifting plates. Limiting components are provided on the lifting block.

[0007] Preferably, the limiting component includes limiting grooves respectively opened on the sides of the two rectangular columns, two sliding holes opened on the side of the lifting block, limiting rods slidably installed on the two sliding holes respectively, a pull plate is installed on the end of the two limiting rods away from the limiting grooves, two tension springs are installed on the side of the pull plate, a rectangular groove communicating with the two sliding holes is opened on the side of the lifting block, and the other ends of the two tension springs are respectively installed on the inner side wall of the two rectangular grooves.

[0008] Preferably, the movable sealing mechanism includes multiple grooves spaced apart on the side of the U-shaped frame, each groove having a sliding rod installed on its opposite inner wall, each sliding rod having an L-shaped plate slidably sleeved on it, each L-shaped plate having a sealing plate and a trapezoidal block installed on its bottom and side, each groove having a compression spring installed on its side inner wall, the other end of each compression spring being installed on the side wall of each L-shaped plate, and each sealing plate having a sealing gasket installed on its side.

[0009] Preferably, the top of the movable plate is provided with a sliding groove, and two guide rods are installed on the opposite inner walls of the sliding groove. A slider is slidably sleeved on the two guide rods. The movable block is installed on the top of the slider. A U-shaped block is installed on each of the two opposite sides of the movable block. Two L-shaped blocks are installed on the top of the movable plate. Each of the two L-shaped blocks has a movable hole. A trapezoidal plate is slidably installed on each of the two movable holes. An anti-detachment plate is installed on the top of each of the two trapezoidal plates. An elastic reset unit is provided on the side of the slider.

[0010] Preferably, the elastic reset unit includes a reset spring mounted on the side of the slider, and the other end of the reset spring is mounted on the inner wall of the side of the slide groove.

[0011] Preferably, the side of the movable block is equipped with a plurality of marker placement boxes.

[0012] The beneficial effects of this utility model are as follows: This invention utilizes a movable block, an upper clamping block, a lifting block, and a limiting rod to simultaneously place and fix multiple wires. The movement of the movable block and the lifting block moves the multiple wires simultaneously. During wiring, the lifting block's movement first moves the sealing plate via the squeezing plate and trapezoidal block, thus releasing the seal on the wire socket. When the connection is canceled and the wire is removed from the socket, the squeezing spring causes the sealing plate to return to its original position. Therefore, during connection and disconnection, the sealing of the wire socket is automatically canceled or re-sealed, effectively preventing debris from entering without repeated insertion and removal of the protective plug. Furthermore, when there is no wire on the lower clamping block, the upper clamping block is not obstructed. The unobstructed upper clamping block descends at a greater height than the obstructed upper clamping block. This change in the upper clamping block's descent alters the descent of the squeezing plate, causing misalignment between the squeezing plate and the trapezoidal block. This eliminates the need for separate adjustment, preventing the unsealing of the wire socket from being connected.

[0013] This invention uses a spiral block, trapezoidal block, and L-shaped block to limit the movement of the movable block when it reaches a certain position, thereby preventing it from moving during use and affecting the connection of the wires. The marking box facilitates the placement of marking paper to mark the connection position and avoids incorrect wiring. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram from a first-view perspective of the present invention; Figure 2 This is a partially magnified three-dimensional structural schematic diagram from a second perspective in this utility model; Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a three-dimensional structural schematic diagram of a partially cut-out portion of the movable plate, U-shaped frame, slider, movable block, and lifting block in this utility model; Figure 5 This is a partially enlarged side view of the rectangular column, lifting block, and L-shaped block in this utility model.

[0015] Reference numerals: 1. Movable plate; 2. Terminal block; 3. U-shaped frame; 4. Slider; 5. Movable block; 6. Lower clamping block; 7. Rectangular column; 8. Lifting block; 9. Moving block; 10. Upper clamping block; 11. Lifting plate; 12. Squeezing plate; 13. L-shaped plate; 14. Squeezing spring; 15. Sealing plate; 16. Trapezoidal block; 17. Wire socket; 18. Return spring; 19. U-shaped block; 20. L-shaped block; 21. Trapezoidal plate; 22. Limiting rod; 23. Pull plate; 24. Tension spring; 25. Marking box. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0017] Figures 1-5 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Attached Figure 5 The present invention will be further described below.

[0018] Example 1 A wiring structure for a power distribution cabinet includes a movable plate 1, a terminal block 2 mounted on the top of the movable plate 1, a plurality of wire sockets 17 on the side of the terminal block 2, a movable block 5 movably mounted above the movable plate 1, two rectangular columns 7 mounted on the top of the movable block 5, a lifting block 8 slidably mounted on the two rectangular columns 7, a fixing and pressing mechanism being provided on the movable block 5 and the lifting block 8, and a U-shaped frame 3 mounted on the top of the terminal block 2, with a movable sealing mechanism being provided on the U-shaped frame 3.

[0019] With the above structure, in use, the lifting block 8 is first lowered. Under the action of the movable block 5 and the fixed pressing mechanism, the lifting block 8 fixes the wire. Once fixed, the movable block 5 is manually pushed to move. The movement of the movable block 5 moves the rectangular column 7, which in turn moves the lifting block 8. The lifting block 8 first presses the moving sealing mechanism through the fixed pressing mechanism to release the blockage of the wire socket 17. Then, the movable block 5 continues to move, allowing the wire to enter the wire socket 17. When contact is made, the movable block 5 returns to its original position. Block 5 resets via rectangular column 7 and lifting block 8, at which point the wire also resets. The moving sealing mechanism then re-seals the wire socket 17, automatically unsealing or sealing the wire socket 17 during connection and disconnection. This effectively prevents foreign objects from entering without repeatedly inserting and removing the protective plug. Simultaneously, when there is no wire at the corresponding position of the wire socket 17, the fixed pressing mechanism for this position will be misaligned with the moving sealing mechanism, thus avoiding the need for separate adjustment to unseal the unconnected wire socket 17 and prevent external foreign objects from entering.

[0020] like Figure 2 , Figure 3 and Figure 4As shown, the fixed extrusion mechanism includes multiple lower clamping blocks 6 installed on the top of the movable block 5, multiple lifting holes are opened on the top of the lifting block 8, and movable blocks 9 are slidably installed on each of the multiple lifting holes. Upper clamping blocks 10 and lifting plates 11 are respectively installed on the bottom and bottom of the multiple movable blocks 9. Extrusion plates 12 are installed on the sides of the multiple lifting plates 11. Limiting components are provided on the lifting block 8. Specifically, multiple ball bearings are rotatably installed on the end of the extrusion plate 12 opposite to the terminal 2.

[0021] Specifically, the lower clamping block 6 facilitates the placement of the wire, causing the lifting block 8 to descend. The descent of the lifting block 8, via the moving block 9, causes the upper clamping block 10 to descend. When the upper clamping block 10 contacts the wire, it is blocked and cannot descend further. At this point, the continued descent of the lifting block 8 presses against the upper clamping block 10, thus securing the wire. Then, the movable block 5 is pushed. The movement of the movable block 5, via the rectangular column 7, causes the lifting block 8 to move. The movement of the movable block 5 and the lifting block 8 respectively move the lower clamping block 6 and the moving block 9. The movement of the moving block 9 then moves the upper clamping block 10 and the lifting plate 11. The movement of the lower clamping block 6 and the upper clamping block 10 allows for… The fixed wire is moved, and the lifting plate 11 moves, causing the pressing plate 12 to move. The movement of the pressing plate 12 will release the blockage of the wire socket 17 by pressing the moving sealing mechanism. When there is no wire on the lower clamping block 6, the upper clamping block 10 is not blocked. At this time, the descent height of the unblocked upper clamping block 10 is greater than the height of the blocked upper clamping block 10. The change in the descent height of the upper clamping block 10 will change the descent height of the pressing plate 12 through the moving block 9 and the lifting plate 11, thereby causing the pressing plate 12 to be misaligned with the moving sealing mechanism. Thus, the blockage of the unconnected wire socket 17 can be prevented without separate adjustment, preventing the entry of external debris.

[0022] like Figure 3 , Figure 4 and Figure 5 As shown, the limiting assembly includes limiting grooves respectively opened on the sides of the two rectangular columns 7, and two sliding holes opened on the side of the lifting block 8. Limiting rods 22 are slidably installed on the two sliding holes respectively. A pull plate 23 is installed on the end of the two limiting rods 22 away from the limiting groove. Two tension springs 24 are installed on the side of the pull plate 23. A rectangular groove connected to the two sliding holes is opened on the side of the lifting block 8. The other ends of the two tension springs 24 are respectively installed on the inner side wall of the two rectangular grooves.

[0023] Specifically, during use, the lifting block 8 moves up and down in the horizontal direction. Then, the limit rod 22 can be moved out into the limit groove by the pull plate 23 and the tension spring 24, thereby limiting the lifting block 8 and preventing the upper clamping block 10 from moving and affecting the fixing effect on the wire.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, the movable sealing mechanism includes multiple grooves spaced apart on the side of the U-shaped frame 3. Each groove has a sliding rod installed on its inner wall. Each sliding rod is slidably sleeved with an L-shaped plate 13. Each L-shaped plate 13 has a sealing plate 15 and a trapezoidal block 16 installed on its bottom and side, respectively. Each groove has a compression spring 14 installed on its inner side wall. The other end of each compression spring 14 is installed on the side wall of each L-shaped plate 13. Each sealing plate 15 has a sealing gasket installed on its side. Specifically, the sealing plate 15 is opposite to and parallel to the wire socket 17.

[0025] Specifically, the sealing plate 15 and the sealing gasket facilitate the sealing of the wire socket 17. The L-shaped plate 13 and the trapezoidal block 16 allow the pressing plate 12 to move and press the trapezoidal block 16, causing it to move. The movement of the trapezoidal block 16 will cause the L-shaped plate 13 to move, which in turn will cause the sealing plate 15 to move, thus releasing the seal. When the pressing plate 12 stops pressing the trapezoidal block 16, the trapezoidal block 16 is not under force. At this time, the pressing spring 14 will cause the L-shaped plate 13 to reset and move. The reset and movement of the L-shaped plate 13 will cause the sealing plate 15 to reset and move, thereby sealing the wire socket 17.

[0026] like Figure 4 As shown, the top of the movable plate 1 is provided with a sliding groove, and two guide rods are installed on the opposite inner walls of the sliding groove. A slider 4 is slidably mounted on the two guide rods. A movable block 5 is installed on the top of the slider 4. A U-shaped block 19 is installed on both sides of the movable block 5 that are far apart from each other. Two L-shaped blocks 20 are installed on the top of the movable plate 1. A movable hole is provided on the top of each of the two L-shaped blocks 20. A trapezoidal plate 21 is slidably mounted on each of the two movable holes. An anti-detachment plate is installed on the top of each of the two trapezoidal plates 21. An elastic reset unit is provided on the side of the slider 4.

[0027] Specifically, the guide rod and slider 4 provide a certain guiding function, facilitating the movement of the movable block 5 in the horizontal direction. Simultaneously, the movement of the movable block 5 will cause the loop block 19 to move. The movement of the loop block 19 will first squeeze the trapezoidal plate 21 to move it upward, and then fall from the middle part of the loop block 19. At this time, the trapezoidal plate 21 limits the loop block 19, preventing it from moving, and thus limits the movable block 5. Therefore, during use, the movement of the movable block 5 will affect the connection status of the wire.

[0028] like Figure 4 As shown, the elastic reset unit includes a reset spring 18 installed on the side of the slider 4, and the other end of the reset spring 18 is installed on the inner wall of the side of the slide groove.

[0029] Specifically, by setting the reset spring 18, a force can be applied to the slider 4, thereby facilitating the reset of the slider 4.

[0030] like Figure 2 As shown, sealing gaskets are installed on the sides of multiple sealing plates 15.

[0031] Specifically, the marking box 25 facilitates the placement of marking paper to mark the connection positions and avoids incorrect wiring positions.

[0032] Example 2 In use, a spring can be installed on the top of the lifting block 8 and the bottom of the lifting plate 11. The spring force can be used to pre-fix the wires on the upper clamping block 10. At the same time, the spring force can be used to move the upper clamping block 10 with the lifting block 8, so that the movable plate 1 can be installed vertically, so that the U-shaped frame 3 is above or below the lifting block 8, increasing the installation flexibility and space adaptability.

[0033] In summary: When using this utility model, first place the wire to be connected on the lower clamping block 6, then pull the pull plate 23 to move it. The movement of the pull plate 23 will cause the limiting rod 22 to move. When the limiting rod 22 moves out of the limiting groove, the lifting block 8 is released from its fixed position. At this time, press the lifting block 8 to move it downwards. The downward movement of the lifting block 8 will cause the upper clamping block 10 to move downwards under the action of the moving block 9, the lifting plate 11, and gravity. When the upper clamping block 10 contacts the wire, the upper clamping block 10 will no longer move downwards. At this time, the lifting block 8 continues to move downwards. The continued downward movement of the lifting block 8 will squeeze the upper clamping block 10 and clamp and fix the wire with the cooperation of the lower clamping block 6, thereby fixing multiple wires at the same time. When fixed, the limiting rod 22 is aligned with another wire. A limiting groove is formed, and under the action of the tension spring 24, the pull plate 23 is reset. The reset of the pull plate 23 will reset the limiting rod 22, which will move into the limiting groove, thereby limiting the lifting block 8 and preventing it from moving and affecting the clamping of the wire. When clamped, the movable block 5 is pushed. The movable block 5 will move horizontally under the action of the guide rod and the slider 4. The horizontal movement of the movable block 5 will drive the lower clamping block 6 and the rectangular column 7 to move. The movement of the rectangular column 7 will cause the upper clamping block 10 to move the pressing plate 12 through the lifting block 8, the movable block 9 and the lifting plate 11. The movement of the lower clamping block 6 and the upper clamping block 10 will drive the wire to move. When the pressing plate 12 contacts the trapezoidal block 16, the pressing plate 12 continues to move. The movement of the pressing plate 12 will compress the trapezoidal block 16, causing it to move. The movement of the trapezoidal block 16 will cause the L-shaped plate 13 to move, which in turn will cause the sealing plate 15 to move. When the side of the pressing plate 12 contacts the vertical surface of the trapezoidal block 16, the sealing plate 15 will release its blockage of the wire socket 17, allowing the movable block 5 to continue moving. This continued movement of the movable block 5 will allow the wire to enter the wire socket 17, facilitating the wiring of multiple wires. When disassembly is required, the movable block 5 will reset. When the pressing plate 12 no longer limits the compression of the trapezoidal block 16, the L-shaped plate 13 will reset under the action of the compression spring 14. The reset of the L-shaped plate 13 will reset the sealing plate 15, which will then release the wire. The wire socket 17 is sealed, and the sealing of the wire socket 17 is automatically canceled or sealed when connecting and disconnecting, so that the entry of foreign objects can be effectively prevented without repeatedly inserting and removing the protective plug. At the same time, when fixing the wire, if there is no wire on the lower clamp 6, the upper clamp 10 will not be blocked, so that the descent height of the unblocked upper clamp 10 is greater than the height of the blocked upper clamp 10. The change in the descent height of the upper clamp 10 will change the descent height of the squeezing plate 12 through the moving block 9 and the lifting plate 11, so that the squeezing plate 12 is misaligned with the trapezoidal block 16, so that the sealing of the wire socket 17 that is not connected can be canceled without separate adjustment, preventing the entry of external foreign objects.

[0034] When the movable block 5 moves, it will drive the loop block 19 to move. When the side of the loop block 19 contacts the trapezoidal plate 21, the loop block 19 continues to move and will squeeze the trapezoidal plate 21 to move it upward. When the loop block 19 contacts the bottom of the trapezoidal plate 21, the loop block 19 continues to move. When the trapezoidal plate 21 is aligned with the middle notch of the loop block 19, the trapezoidal plate 21 will reset under the action of gravity. The reset of the trapezoidal plate 21 will limit the loop block 19, and then limit the movable block 5. At this time, the end of the wire is in the wire socket 17, thereby preventing the movable block 5 from moving and affecting the connection. When the connection is released, the trapezoidal plate 21 is moved by pulling the anti-detachment plate. The movement of the trapezoidal plate 21 will release the limit on the loop block 19. At this time, under the action of the reset spring 18, the slider 4 will reset. The reset of the slider 4 will reset the movable block 5, thereby allowing the wire to quickly move out of the wire socket 17.

[0035] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A wiring structure for a power distribution cabinet, comprising a movable plate (1), characterized in that, The top of the movable plate (1) is equipped with a terminal block (2), and the side of the terminal block (2) is provided with multiple wire sockets (17). A movable block (5) is movably arranged above the movable plate (1). Two rectangular columns (7) are installed on the top of the movable block (5). A lifting block (8) is slidably installed on the two rectangular columns (7). A fixed pressing mechanism is provided on the movable block (5) and the lifting block (8). A U-shaped frame (3) is installed on the top of the terminal block (2), and a movable sealing mechanism is provided on the U-shaped frame (3).

2. The wiring structure of a power distribution cabinet according to claim 1, characterized in that, The fixed extrusion mechanism includes multiple lower clamping blocks (6) installed on the top of the movable block (5), multiple lifting holes are opened on the top of the lifting block (8), and a movable block (9) is slidably installed on each of the multiple lifting holes. An upper clamping block (10) and a lifting plate (11) are respectively installed on the bottom and bottom of the multiple movable blocks (9), and an extrusion plate (12) is installed on the side of each of the multiple lifting plates (11). A limit component is provided on the lifting block (8).

3. The wiring structure of a power distribution cabinet according to claim 2, characterized in that, The limiting component includes limiting grooves respectively opened on the sides of the two rectangular columns (7), and two sliding holes opened on the side of the lifting block (8). Limiting rods (22) are slidably installed on the two sliding holes respectively. A pull plate (23) is installed on the end of the two limiting rods (22) away from the limiting groove. Two tension springs (24) are installed on the side of the pull plate (23). A rectangular groove connected to the two sliding holes is opened on the side of the lifting block (8). The other end of the two tension springs (24) is respectively installed on the inner wall of the side of the two rectangular grooves.

4. The wiring structure of a power distribution cabinet according to claim 1, characterized in that, The movable sealing mechanism includes multiple grooves spaced apart on the side of the U-shaped frame (3). Each groove has a sliding rod installed on its inner wall. Each sliding rod is slidably sleeved with an L-shaped plate (13). Each L-shaped plate (13) has a sealing plate (15) and a trapezoidal block (16) installed on its bottom and side. Each groove has a compression spring (14) installed on its inner side wall. The other end of each compression spring (14) is installed on the side wall of each L-shaped plate (13). Each sealing plate (15) has a sealing gasket installed on its side.

5. The wiring structure of a power distribution cabinet according to claim 1, characterized in that, The top of the movable plate (1) is provided with a sliding groove, and two guide rods are installed on the inner walls of the sliding groove. A slider (4) is slidably sleeved on the two guide rods. The movable block (5) is installed on the top of the slider (4). A U-shaped block (19) is installed on both sides of the movable block (5) that are far apart from each other. Two L-shaped blocks (20) are installed on the top of the movable plate (1). The top of the two L-shaped blocks (20) is provided with a movable hole. A trapezoidal plate (21) is slidably installed on the two movable holes. An anti-detachment plate is installed on the top of the two trapezoidal plates (21). An elastic reset unit is provided on the side of the slider (4).

6. The wiring structure of a power distribution cabinet according to claim 5, characterized in that, The elastic reset unit includes a reset spring (18) installed on the side of the slider (4), and the other end of the reset spring (18) is installed on the inner wall of the side of the groove.

7. The wiring structure of a power distribution cabinet according to claim 1, characterized in that, Multiple marker placement boxes (25) are installed on the side of the movable block (5).

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