Power distribution box convenient to overhaul

Abstract

The utility model discloses a distribution box convenient to overhaul, which relates to the technical field of distribution boxes and comprises a box body, a mounting frame and a movable bottom plate. A top plate is fixedly connected to the top of the box body, a door plate is hinged to one side of the box body, the movable bottom plate is movably connected to the bottom of the box body, a sliding assembly is arranged between the movable bottom plate and the box body and used for achieving unfolding or merging of the movable bottom plate and the box body in the vertical direction, and a folding and unfolding assembly is arranged between the mounting frame and the box body. According to the utility model, through the arrangement of the folding and unfolding assembly, the movable bottom plate can be conveniently pulled out downwards in the maintenance process, so that the mounting plates provided with the electronic components slide out relative to the box body, and the maintenance is further facilitated, and when the box is close to a wall surface, the folding and unfolding assembly can be controlled to be unfolded, so that the turnover plate is turned over to a horizontal position; therefore, a certain distance is formed between the whole device and the wall surface, so that maintenance operation can be conveniently carried out in the operation space.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a distribution box which is easy to repair. Background Art

[0002] A distribution box is a device used to distribute electricity and protect electrical equipment. In the distribution box, electricity is distributed and controlled through devices such as circuit breakers and fuses to ensure the safe operation of the circuit. The distribution box is usually installed in an electrical room inside a building or in an outdoor distribution cabinet, playing an important role in power distribution and protection.

[0003] When inspecting the inside of the distribution box, it is extremely inconvenient to operate in the narrow environment of the box because the box body is not easy to unfold, resulting in a large number of tools and components to be used by the staff during replacement and maintenance, and it is inconvenient for the staff to take the tools and components. In addition, the area available for placement inside the distribution box is small, which affects the work efficiency of the staff to a certain extent.

[0004] A Chinese patent for a distribution box (publication number CN218732597U) is proposed in the prior art to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: by providing an installation component and a limit component, when the staff needs to replace or repair the components inside the box of the distribution box, the U-shaped handle can be pulled out first, and then the switch door can be moved, and finally the limit rod can be separated from the inner cavity of the limit hole, and then the switch door can be rotated to a flat plate shape, and then the switch door can be moved to the original position. This not only facilitates the staff to replace or repair the components inside the box, but also allows the required tools and replacement components to be placed on the switch door, so as to facilitate the removal of related tools and replacement components during the maintenance process. However, it can only quickly unfold one side of the distribution box, and the components are arranged inside the box. The operator still needs to operate in the narrow environment of the distribution box, which is very inconvenient. Moreover, the distribution box is mostly installed on the wall, so that the front and rear distance of the box is also relatively narrow, which is not convenient for operation. It is necessary to propose a distribution box that is easy to repair. Utility Model Content

[0005] The purpose of the utility model is to provide a distribution box that is easy to maintain, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A distribution box which is easy to maintain, comprises a box body, a mounting frame and a movable bottom plate; a top plate is fixedly connected to the top of the box body, a door panel is hinged to one side of the box body, the movable bottom plate is movably connected to the bottom of the box body, a sliding assembly is arranged between the movable bottom plate and the box body, the sliding assembly is used to realize the expansion or merging of the movable bottom plate and the box body in the vertical direction, a folding and unfolding assembly is arranged between the mounting frame and the box body, the folding and unfolding assembly is used to realize the expansion or merging of the box body in the horizontal direction relative to the mounting frame; the folding and unfolding assembly comprises a first limit buckle, the first limit buckle is symmetrically fixedly connected to one side of the mounting frame, the two sides of the box body are symmetrically fixedly connected to the second limit buckle, a flip plate is rotatably connected to the first limit buckle and the mounting frame via a damping shaft, and the other end of the flip plate is rotatably connected between the second limit buckle and the box body via a damping shaft.

[0008] By adopting the above technical solution, by setting up a retractable and deployable component, it is convenient to pull out the movable bottom plate downward during maintenance, so that the installation plates installed with electronic components can slide out relative to the box body, thereby facilitating maintenance. When it is close to the wall, the retractable and deployable component can be controlled to unfold it, so that when the flip plate is flipped to a horizontal position, the whole is kept a certain distance from the wall, so that the operating space can be convenient for maintenance operations.

[0009] A further improvement of the technical solution of the utility model is that the folding and unfolding component also includes a positioning frame, the positioning frame is fixedly connected to one side of the second limit buckle, one side of the positioning frame is threadedly connected to a bolt, one end of the bolt extends to the interior of the positioning frame and is rotatably connected to one side of the inner wall of the positioning frame, the outer side of the bolt is threadedly connected to a locking plate, the outer side of the locking plate is slidably connected to the inner wall of the positioning frame, one side of the locking plate is fixedly connected to a positioning pin, first through holes are opened on both sides of the mounting frame, positioning holes are opened on both sides of the box body, and the positioning pin is used in conjunction with the first through hole and the positioning hole.

[0010] By adopting the above technical solution, when the distribution box is closed as a whole, the positioning pin passes through the first through hole and is inserted in the positioning hole. When it needs to be unfolded, the bolts on both sides are rotated to make the locking plate move to the side away from the box body, and drive the positioning pin to leave the positioning hole and the first through hole, so that the box body can be flipped relative to the flip plate, and the flip plate can be flipped relative to the mounting frame.

[0011] A further improvement of the technical solution of the utility model is that a second through hole is provided on the flip plate, and the positioning pin is used in conjunction with the second through hole.

[0012] By adopting the above technical solution, when the flip plate is flipped to a horizontal position, the bolt is rotated so that the locking plate drives the positioning pin to pass through the second through hole and insert into the positioning hole, so that the whole is in a fully expanded state and fixed, so that maintenance operations can be carried out very conveniently.

[0013] A further improvement of the technical solution of the utility model is that the sliding assembly includes a track plate symmetrically fixedly connected to the top of the movable bottom plate, a mounting plate is fixedly connected between the outer sides of the track plate, a track groove is provided on the track plate, sliding buckles are symmetrically fixedly connected on both sides of the inner wall of the box, the sliding buckles are slidably connected to the track groove, a fixing frame is fixedly connected on both sides of the inner wall of the box, a latch is provided on one side of the fixing frame, and a lock hole used in conjunction with the latch is provided on the track plate.

[0014] By adopting the above technical solution, the door panel is opened, and the track plate can be slid downward relative to the slide buckle by unlocking the latches on both sides, so that the movable bottom plate can slide relative to the box body.

[0015] A further improvement of the technical solution of the utility model is that the first limiting buckle and the second limiting buckle are both configured as L-shaped plates.

[0016] By adopting the above technical solution, the flipping angle of the flip plate can be limited.

[0017] A further improvement of the technical solution of the utility model is that a wing plate is arranged on one side of the box body close to the door panel, a wing plate is also arranged on one side of the movable bottom plate, a folding edge used in conjunction with the wing plate is arranged on one side of the door panel, and a visual window is arranged on the door panel.

[0018] By adopting the above technical solution, when the movable bottom plate is combined with the box body, the outer wing panels of the two are assembled into a square frame structure, which fits perfectly on the outer side of the square frame structure with the folded edge on the door panel, making the structure of the connection part more compact. At the same time, when the door panel is closed, the movable bottom plate cannot be opened, thereby improving safety.

[0019] A further improvement of the technical solution of the utility model is that heat dissipation windows are symmetrically arranged on both sides of the box body, a plurality of wire grooves are opened on the movable bottom plate, and a plurality of heat dissipation holes are also opened on the movable bottom plate.

[0020] By adopting the above technical solution, the box can be ventilated with the outside through the heat dissipation holes and the heat dissipation windows, thereby improving the heat dissipation effect. The wire groove is arranged on the movable bottom plate to facilitate the passage of cables. At the same time, the movable bottom plate will not be blocked by the cables when it moves, thereby avoiding damage to the cables during the expansion of the box.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides a distribution box that is easy to maintain. By arranging a retractable and deployable assembly, it is convenient to pull out the movable bottom plate downward during maintenance, so that the mounting plates with electronic components installed can slide out relative to the box body, thereby facilitating maintenance. When the box is close to a wall, the retractable and deployable assembly can be controlled to be deployed, so that when the flip plate is flipped to a horizontal position, the entire box is kept at a certain distance from the wall, so that the operating space can be convenient for maintenance operations.

[0023] 2. The utility model provides a distribution box which is easy to maintain. Through the wing plates, in cooperation with the folded edges on the door panels, when the movable bottom plate and the box body are combined, the wing plates on the outside of the two are assembled into a square frame structure, which fits the folded edges on the door panels just right on the outside of the square frame structure, making the structure of the connection part more compact. At the same time, when the door panels are closed, the movable bottom plate cannot be opened, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 This is one of the structural schematic diagrams of the utility model in the overall folded state;

[0026] Figure 2 This is the second structural diagram of the utility model in the overall folded state;

[0027] Figure 3 This is a structural schematic diagram of the sliding assembly of the utility model in an unfolded state;

[0028] Figure 4 This is one of the structural schematic diagrams of the utility model in a fully expanded state;

[0029] Figure 5 This is the second structural schematic diagram of the utility model in a fully expanded state;

[0030] Figure 6 It is a partial structural diagram of the folding and unfolding assembly of the utility model;

[0031] Figure 7 For this utility model Figure 2 Enlarged view of point A in the middle;

[0032] Figure 8 For this utility model Figure 5 Enlarged view of point B in the middle.

[0033] In the figure: 1, box body; 2, mounting frame; 3, sliding buckle; 4, track plate; 5, track groove; 6, fixing frame; 7, latch; 8, movable bottom plate; 9, mounting plate; 10, lock hole; 11, door plate; 12, wing plate; 13, folding edge; 14, flip plate; 15, first limit buckle; 16, second limit buckle; 17, positioning frame; 18, bolt; 19, locking plate; 20, positioning pin; 21, top plate; 22, heat dissipation window; 23, visual window; 24, wire trough; 25, positioning hole; 26, first through hole; 28, second through hole. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the embodiments:

[0035] Example 1

[0036] like Figure 1 and Figure 6 As shown, the utility model provides a distribution box that is easy to maintain, including a box body 1, a mounting frame 2 and a movable bottom plate 8; a top plate 21 is fixedly connected to the top of the box body 1, a door panel 11 is hinged on one side of the box body 1, the movable bottom plate 8 is movably connected to the bottom of the box body 1, a sliding component is arranged between the movable bottom plate 8 and the box body 1, the sliding component is used to realize the movable bottom plate 8 and the box body 1 to be expanded or merged in the vertical direction, a folding and unfolding component is arranged between the mounting frame 2 and the box body 1, the folding and unfolding component is used to realize the box body 1 to be expanded or merged in the horizontal direction relative to the mounting frame 2; the folding and unfolding component includes a first limit buckle 15, the first limit buckle 15 is symmetrically fixedly connected to one side of the mounting frame 2, and the two sides of the box body 1 are symmetrically fixedly connected with the second limit buckle 16, a flip plate 14 is rotatably connected between the first limit buckle 15 and the mounting frame 2 through a damping shaft, and the other end of the flip plate 14 is rotatably connected between the second limit buckle 16 and the box body 1 through a damping shaft.

[0037] In this embodiment, by providing a folding and unfolding assembly, it is convenient to pull the movable bottom plate 8 downward during maintenance, so that the mounting plates 9 with electronic components installed can slide out relative to the box body 1, thereby facilitating maintenance. When close to the wall, the folding and unfolding assembly can be controlled to unfold, so that when the flip plate 14 is flipped to a horizontal position, the whole is kept a certain distance from the wall, so that the operating space can be convenient for maintenance operations.

[0038] Example 2

[0039] like Figure 2 and Figure 6As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the folding and unfolding assembly also includes a positioning frame 17, the positioning frame 17 is fixedly connected to one side of the second limit buckle 16, one side of the positioning frame 17 is threadedly connected with a bolt 18, one end of the bolt 18 extends to the interior of the positioning frame 17 and is rotatably connected to one side of the inner wall of the positioning frame 17, the outer side of the bolt 18 is threadedly connected with a locking plate 19, the outer side of the locking plate 19 is slidably connected to the inner wall of the positioning frame 17, one side of the locking plate 19 is fixedly connected with a positioning pin 20, first through holes 26 are opened on both sides of the mounting frame 2, positioning holes 25 are opened on both sides of the box body 1, and the positioning pin 20 is used in conjunction with the first through hole 26 and the positioning hole 25.

[0040] In this embodiment, when the distribution box is closed as a whole, the positioning pin 20 passes through the first through hole 26 and is inserted into the positioning hole 25. When it needs to be unfolded, the bolts 18 on both sides are rotated to make the locking plate 19 move to the side away from the box body 1, and drive the positioning pin 20 to leave the positioning hole 25 and the first through hole 26, so that the box body 1 can be flipped relative to the flip plate 14, and the flip plate 14 can be flipped relative to the mounting frame 2.

[0041] like Figure 3 and Figure 6 As shown, preferably, a second through hole 28 is opened on the flip plate 14, and the positioning pin 20 is used in conjunction with the second through hole 28.

[0042] In this embodiment, when the flip plate 14 is flipped to a horizontal position, the bolt 18 is rotated so that the locking plate 19 drives the positioning pin 20 to pass through the second through hole 28 and insert into the positioning hole 25, so that the whole is in a fully expanded state and fixed, so that maintenance operations can be carried out very conveniently.

[0043] Example 3

[0044] like Figure 2 and Figure 7 As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, the sliding assembly includes a track plate 4 symmetrically fixedly connected to the top of the movable bottom plate 8, a mounting plate 9 is fixedly connected between the outer sides of the track plate 4, a track groove 5 is opened on the track plate 4, and slide buckles 3 are symmetrically fixedly connected on both sides of the inner wall of the box body 1. The slide buckles 3 are slidably connected to the track groove 5. A fixing frame 6 is fixedly connected on both sides of the inner wall of the box body 1, a latch 7 is arranged on one side of the fixing frame 6, and a lock hole 10 used in conjunction with the latch 7 is opened on the track plate 4.

[0045] In this embodiment, the door panel 11 is opened, and the latches 7 on both sides are unlocked to allow the track plate 4 to slide downward relative to the slider 3 , so that the movable bottom plate 8 can slide relative to the box body 1 .

[0046] like Figure 6 As shown, preferably, the first limiting buckle 15 and the second limiting buckle 16 are both configured as L-shaped plates.

[0047] In this embodiment, the flipping angle of the flip plate 14 can be limited.

[0048] like Figure 2 and Figure 3 As shown, preferably, a wing plate 12 is provided on one side of the box body 1 close to the door panel 11, a wing plate 12 is also provided on one side of the movable bottom plate 8, a folding edge 13 used in conjunction with the wing plate 12 is provided on one side of the door panel 11, and a visual window 23 is provided on the door panel 11.

[0049] In this embodiment, when the movable bottom plate 8 is combined with the box body 1, the wing panels 12 on the outside of the two are assembled into a square frame structure, and the folded edges 13 on the door panel 11 fit exactly on the outside of the square frame structure, making the connection part structure more compact. At the same time, when the door panel 11 is closed, the movable bottom plate 8 cannot be opened, thereby improving safety.

[0050] like Figure 2 and Figure 3 As shown, preferably, heat dissipation windows 22 are symmetrically arranged on both sides of the box body 1, a plurality of wire grooves 24 are opened on the movable bottom plate 8, and a plurality of heat dissipation holes are also opened on the movable bottom plate 8.

[0051] In this embodiment, the heat dissipation holes and the heat dissipation windows 22 facilitate ventilation of the box 1 with the outside to improve the heat dissipation effect. The wire grooves 24 are arranged on the movable bottom plate 8 to facilitate the passage of cables. At the same time, the movable bottom plate 8 will not be obstructed by the cables when it moves, thereby avoiding damage to the cables during the unfolding of the box 1.

[0052] The following is a detailed description of the working principle of this easy-to-maintain distribution box.

[0053] like Figure 1-8 As shown, when maintenance is needed, the door panel 11 is opened, and the track plate 4 can slide downward relative to the slider 3 by unlocking the latches 7 on both sides. The specific implementation process is: first, pull out the latch 7 on one side from the lock hole 10, and then hold the movable bottom plate 8 with one hand while pulling out the other latch 7 to prevent the movable bottom plate 8 from losing its position and falling rapidly, causing damage to the internal electronic components. Then, the movable bottom plate 8 is slowly lowered until the top of the track groove 5 contacts the slider 3, that is, the overall expansion in the vertical direction is completed, so that the front and back sides of the electronic components installed on the mounting plate 9 are both extended out of the box body 1, which can facilitate maintenance operations. Its state is as shown in FIG. Figure 2 As shown;

[0054] However, since the distribution box may be installed against a wall, there is still inconvenience in operation on the side close to the wall, so it needs to be unfolded in the horizontal direction. By rotating the bolts 18 on both sides, the locking plate 19 moves to the side away from the box body 1, and drives the positioning pin 20 to leave the positioning hole 25 and the first through hole 26, so that the box body 1 can be flipped relative to the flip plate 14, and the flip plate 14 can be flipped relative to the mounting frame 2. When the flip plate 14 is flipped to a horizontal position, the two sides of the flip plate 14 are respectively limited by the first limiting buckle 15 and the second limiting buckle 16. At this time, by straightening the box body 1 (that is, the locking plate 19 is parallel to the ground), at this time, by rotating the bolts 18, the locking plate 19 drives the positioning pin 20 to pass through the second through hole 28 and insert into the positioning hole 25, that is, the whole is in a fully unfolded state, which greatly facilitates the maintenance operation. The effect is as follows Figure 4 Status shown.

[0055] After the operation is completed, the box body 1 can be turned over to the initial state by rotating the bolt 18 to make the positioning pin 20 leave the positioning hole 25, and the bolt 18 is used to drive the positioning pin 20 to pass through the first through hole 26 and insert it into the positioning hole 25, thus completing the fixation of the mounting frame 2 and the box body 1, and then the movable bottom plate 8 is lifted upward, so that the track plate 4 slides upward along the slide buckle 3 until the movable bottom plate 8 is completely covered on the bottom of the box body 1. At this time, the latch 7 is opposite to the lock hole 10, and the two latches 7 are inserted into the lock hole 10 to complete the fixation between the movable bottom plate 8 and the box body 1, that is, the overall restoration and assembly of the box body 1 is realized, and its state is as follows: Figure 2 shown.

[0056] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A distribution box that is easy to maintain, comprising a box body (1), a mounting frame (2) and a movable bottom plate (8); characterized in that: The top of the box (1) is fixedly connected to a top plate (21), one side of the box (1) is hinged to a door plate (11), the movable bottom plate (8) is movably connected to the bottom of the box (1), a sliding component is provided between the movable bottom plate (8) and the box (1), the sliding component is used to realize the movable bottom plate (8) and the box (1) to be expanded or merged in the vertical direction, and a retractable component is provided between the mounting frame (2) and the box (1), the retractable component is used to realize the box (1) to be expanded or merged in the horizontal direction relative to the mounting frame (2); The folding and unfolding assembly comprises a first limit buckle (15), the first limit buckle (15) is symmetrically fixedly connected to one side of the mounting frame (2), the two sides of the box body (1) are symmetrically fixedly connected to the second limit buckle (16), a flip plate (14) is rotatably connected between the first limit buckle (15) and the mounting frame (2) via a damping shaft, and the other end of the flip plate (14) is rotatably connected between the second limit buckle (16) and the box body (1) via a damping shaft.

2. A distribution box that is easy to maintain according to claim 1, characterized in that: The folding and unfolding assembly further comprises a positioning frame (17), wherein the positioning frame (17) is fixedly connected to one side of the second limiting buckle (16), a bolt (18) is threadedly connected to one side of the positioning frame (17), one end of the bolt (18) extends into the interior of the positioning frame (17) and is rotatably connected to one side of the inner wall of the positioning frame (17), a locking plate (19) is threadedly connected to the outer side of the bolt (18), the outer side of the locking plate (19) is slidably connected to the inner wall of the positioning frame (17), a positioning pin (20) is fixedly connected to one side of the locking plate (19), first through holes (26) are provided on both sides of the mounting frame (2), positioning holes (25) are provided on both sides of the box body (1), and the positioning pin (20) is used in conjunction with the first through hole (26) and the positioning hole (25).

3. A distribution box that is easy to maintain according to claim 2, characterized in that: The flip plate (14) is provided with a second through hole (28), and the positioning pin (20) is used in conjunction with the second through hole (28).

4. A distribution box that is easy to maintain according to claim 1, characterized in that: The sliding assembly comprises a track plate (4) symmetrically fixedly connected to the top of the movable bottom plate (8), a mounting plate (9) is fixedly connected between the outer sides of the track plate (4), a track groove (5) is provided on the track plate (4), sliding buckles (3) are symmetrically fixedly connected to the two sides of the inner wall of the box body (1), the sliding buckles (3) are slidably connected to the track groove (5), a fixing frame (6) is fixedly connected to the two sides of the inner wall of the box body (1), a latch (7) is arranged on one side of the fixing frame (6), and a lock hole (10) used in conjunction with the latch (7) is provided on the track plate (4).

5. The distribution box that is easy to maintain according to claim 2 is characterized in that: The first limiting buckle (15) and the second limiting buckle (16) are both configured as L-shaped plates.

6. The distribution box that is easy to maintain according to claim 1 is characterized in that: A wing plate (12) is provided on one side of the box body (1) close to the door panel (11), a wing plate (12) is also provided on one side of the movable bottom plate (8), a folding edge (13) used in conjunction with the wing plate (12) is provided on one side of the door panel (11), and a visual window (23) is provided on the door panel (11).

7. The distribution box that is easy to maintain according to claim 1 is characterized in that: Heat dissipation windows (22) are symmetrically arranged on both sides of the box body (1), a plurality of wire grooves (24) are provided on the movable bottom plate (8), and a plurality of heat dissipation holes are also provided on the movable bottom plate (8).

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