A distribution box

Abstract

The utility model discloses a distribution box, including the box, install the cavity to be equipped with in the box, the opposite rotation of the box front end surface in install the cavity is connected with the box door, install the cavity mouth department is equipped with the connection position, the inside wall one side of connection position top and bottom is equipped with first rotation hole and second rotation hole respectively, the box door top surface fixed mounting has the rotary column, and the rotary column rotation is connected in first rotation hole, the box door inside wall lower portion is installed and has the bolt subassembly, and the bolt subassembly lower end is connected in second rotation hole, the rear end surface edge of box is fixedly connected with the extension board. The utility model discloses the optimization improvement to door body connecting structure and box installation protection structure, improves the maintenance efficiency of distribution box, the use convenience and security comprehensively, prolongs the service life of equipment, and the maintenance cost is reduced, and it has important practical significance to guarantee the safe and reliable operation of power system.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, specifically to a distribution box. Background Technology

[0002] A distribution box is an important electrical device. It assembles switching equipment, measuring instruments, protective devices, and auxiliary equipment in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements, thus forming a low-voltage power distribution system. This design not only effectively manages and distributes electrical energy but also ensures the safe operation of the electrical system.

[0003] One of the most prominent issues is the inconvenience of disassembling and assembling the door for maintenance. Traditional distribution boxes typically use hinges to connect the door to the box body. When maintenance, repair, or replacement is needed, it's often necessary to remove multiple bolts from the hinges to remove the entire door. This method is not only cumbersome, requiring specialized tools, but also prone to causing bumps and damage to the door and box body during the process, affecting the appearance and lifespan of the distribution box. This is especially true for distribution boxes installed in narrow or high locations, where the difficulty of disassembling and assembling the door is even greater, increasing the workload and safety risks for maintenance personnel. Furthermore, the problems caused by exposed bolts when installing distribution boxes on walls cannot be ignored. Traditional distribution boxes are typically fixed to walls using exposed expansion bolts or ordinary bolts. Because these bolts are directly exposed to the external environment, they are highly susceptible to corrosion when used outdoors or in humid conditions, constantly exposed to rainwater, moisture, and corrosive media in the air. Over time, the corrosion of the bolts worsens, affecting not only the overall aesthetics of the distribution box but, more seriously, causing the connection between the bolts and nuts to become rigid and stiff. This makes disassembly difficult when the distribution box needs to be moved, repaired, or replaced later. In extreme cases, severely corroded bolts may even become completely stuck, impossible to remove with conventional tools, requiring destructive methods. This not only increases maintenance costs and workload but may also damage the wall structure. The existence of these defects not only reduces the maintenance efficiency and ease of use of the distribution box, but also affects the safe and reliable operation of the power system to a certain extent. Therefore, optimizing and improving the structure of the distribution box is of great practical significance. Summary of the Invention

[0004] The purpose of this utility model is to provide a distribution box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a distribution box, including a box body, an installation cavity is provided inside the box body, a box door is rotatably connected to the front surface of the box body relative to the installation cavity, a connection position is provided at the opening of the installation cavity, a first rotation hole and a second rotation hole are respectively provided above and below one side of the inner wall of the connection position, a rotation column is fixedly installed on the top surface of the box door, and the rotation column is rotatably connected to the first rotation hole, a pin assembly is installed on the lower inner wall of the box door, and the lower end of the pin assembly is inserted into the second rotation hole, and an extension plate is fixedly connected to the edge of the rear end face of the box body.

[0006] Preferably, the latch assembly includes a fixing seat, a latch, and a spring. The fixing seat is installed on the inner wall surface of the door, and the latch is inserted into the fixing seat. The bottom of the latch is inserted into the second rotating hole, and the spring is disposed in the fixing seat and sleeved on the surface of the latch.

[0007] Preferably, the fixing base includes a mounting plate and a connecting plate. The rear end surface of the mounting plate is in contact with the inner wall surface of the door. The front end surface of the mounting plate is symmetrically connected with connecting plates. The surface of the connecting plate is provided with a socket for the insertion of a pin. A spring is provided between the two connecting plates. The upper end of the spring is in contact with the surface of the connecting plate, and the lower end of the spring is hooked onto the surface of the pin.

[0008] Preferably, a mounting plate protruding towards the rear end is fixedly connected to the inner wall surface of the mounting cavity, and a mounting hole is provided in the middle of the surface of the mounting plate. Beneficial effects

[0009] Compared with existing technologies, the beneficial effects of this utility model are as follows: 1. Regarding the ease of maintenance and disassembly of the door, this utility model adopts an innovative combination connection structure of a rotating column and a pin assembly, replacing the traditional hinge connection method. The top of the door is rotatably connected to the first rotating hole of the box body connection position via the rotating column, while the bottom is engaged with the second rotating hole via the pin assembly. When maintenance, repair, or replacement of the door is required, maintenance personnel do not need to use special tools to remove multiple fixing bolts. They only need to operate the pin assembly to disengage the pin from the second rotating hole, and the door can be easily flipped upwards or removed around the rotating column, greatly simplifying the disassembly and assembly process. This design not only reduces the difficulty of operation and the risk of bumping and damaging the door and box body, extending the service life of the distribution box, but also significantly reduces the workload and safety risks of maintenance personnel for distribution boxes installed in narrow or high locations, greatly improving maintenance efficiency. 2. To address the issue of exposed bolts, this invention provides a protective shield for the installation and fixing of the distribution box to the wall by installing an extension plate at the edge of the rear end face of the box. When expansion bolts or ordinary bolts are used to fix the box to the wall, the extension plate effectively shields these bolts, preventing them from being directly exposed to the external environment. This design effectively isolates the bolts from contact with rainwater, moisture, and corrosive media in the air, significantly slowing down the rate of bolt corrosion. This ensures the overall aesthetics of the distribution box and avoids difficulties in disassembly due to bolt corrosion. When the distribution box needs to be moved, repaired, or replaced, the bolts can be easily removed, reducing the possibility of destructive handling, lowering maintenance costs and workload, and protecting the wall structure from damage. 3. The structural design of the latch assembly further enhances the stability and ease of operation of the door connection. The mounting base is securely connected to the door via a mounting plate. The insertion hole on the connecting plate provides precise guidance for the latch, and the elasticity of the spring ensures that the latch remains tightly engaged with the second rotating hole, guaranteeing reliable closure of the door during normal use. The rearward-protruding mounting base and its central mounting hole on the inner wall of the mounting cavity facilitate the installation and fixing of electrical components inside the distribution box, enhancing the stability of the internal structure and contributing to the safe and reliable operation of the electrical system. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall front-end structure of this utility model; Figure 2 This is a schematic diagram of the overall rear structure of this utility model; Figure 3 This is a schematic diagram of the structure of the box body of this utility model; Figure 4 This is a schematic diagram of the door structure of this utility model; Figure 5 This is a schematic diagram of the pin assembly structure of this utility model.

[0011] The correspondence between the labels and component names in the attached figures is as follows: 1. Enclosure; 2. Door; 3. Latch assembly; 11. Mounting cavity; 12. Connection point; 13. Mounting plate; 14. Mounting hole; 15. Extension plate; 21. Rotating column; 31. Fixing base; 32. Pin; 33. Spring; 121. First rotating hole; 122. Second rotating hole; 311. Mounting plate; 312. Connecting plate; 313. Insertion hole. Detailed Implementation

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

[0013] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "vertical," and "horizontal," 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 the invention 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] like Figure 1-5 This is a schematic diagram of a preferred embodiment of the present invention for a distribution box. In this embodiment, the distribution box includes a box body 1, with a mounting cavity 11 for installing electrical components inside. A door 2 is rotatably connected to the front surface of the box body 1 at the mounting cavity 11, providing protection for the components inside the mounting cavity 11. A connection position 12 is provided at the opening of the mounting cavity 11, providing a mounting base for the rotatable connection between the door 2 and the box body 1. An extension plate 15 is fixedly connected to the edge of the rear end face of the box body 1, which can shield and protect the fixing bolts during installation. A first rotation hole 121 and a second rotation hole 122 are respectively provided on the upper and lower sides of one side of the inner wall of the connection position of the box body 1, providing two connection points for the rotation of the door 2. A rotating column 21 is fixedly installed on the top surface of the door 2, and the rotating column 21 is rotatably connected to the first rotation hole 121, forming the upper rotation fulcrum of the door 2. A latch assembly 3 is installed on the lower inner wall of the door 2. The lower end of the latch assembly 3 is inserted into the second rotating hole 122, forming the lower fixed support point of the door 2. The reliable rotation and fixation of the door 2 are achieved through the cooperation of the upper and lower support points.

[0015] In this embodiment, a mounting plate 13 protruding towards the rear end is fixedly connected to the inner wall surface of the mounting cavity 11. A mounting hole 14 is provided in the middle of the surface of the mounting plate 13, which facilitates the installation and fixing of the distribution box and enhances the stability of the distribution box installation structure.

[0016] In this embodiment, the latch assembly 3 includes a fixing base 31, a latch 32, and a spring 33, and is the core component for connecting and separating the lower support point of the door 2. The fixing base 31 is installed on the inner wall surface of the door 2, providing a mounting carrier for the latch 32 and the spring 33. The latch 32 is inserted into the fixing base 31, and the bottom of the latch 32 is inserted into the second rotating hole 122. The fixing and separation of the lower support point of the door 2 is achieved by inserting and removing the latch 32. The spring 33 is disposed in the fixing base 31 and sleeved on the surface of the latch 32, and the elastic force of the spring 33 ensures a reliable connection between the latch 32 and the second rotating hole 122. In this embodiment, the fixing base 31 includes a mounting plate 311 and a connecting plate 312. The rear end surface of the mounting plate 311 contacts the inner wall surface of the door 2 and is fixedly connected to the door 2 by bolts or other means. The front end surface of the mounting plate 311 is symmetrically connected to the connecting plate 312. The surface of the connecting plate 312 has a socket 313 for the pin 32 to be inserted, which guides the movement of the pin 32. A spring 33 is provided between the two connecting plates 312. The upper end of the spring 33 contacts the surface of the connecting plate 312, and the lower end of the spring 33 is hooked onto the surface of the pin 32. When the pin 32 is pulled up, the spring 33 is compressed and stores elastic potential energy. After the pin 32 is released, the elastic force of the spring 33 pushes the pin 32 downward, so that its bottom is reliably inserted into the second rotating hole 122.

[0017] Working principle When installing the distribution box, the rear end of the box 1 is first pre-fixed to the preset position on the wall through the mounting holes 14 on the mounting plate 311 and other structures. Then, expansion bolts or ordinary bolts are used to pass through the mounting holes 14 to fix the box 1 to the wall. At this time, the extension plate 15 at the rear end of the box 1 can effectively shield these fixing bolts and prevent the bolts from being directly exposed to the external environment.

[0018] When maintenance, repair, or replacement of the door 2 is required, maintenance personnel do not need to use special tools. They only need to pull the pin 32 upwards to make the pin 32 move upwards against the elastic force of the spring 33 and disengage from the second rotating hole 122. At this time, the bottom of the door 2 is separated from the box body 1, thus completing the removal of the door 2. After maintenance, first align the rotating column 21 at the top of the door 2 with the first rotating hole 121 and install it. Then align the pin 32 with the second rotating hole 122 and release the pin 32. Under the elastic force of the spring 33, the bottom of the pin 32 automatically inserts into the second rotating hole 122, completing the installation and fixing of the door 2.

[0019] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A distribution box, comprising a box body (1), wherein a mounting cavity (11) is provided inside the box body (1), and a door (2) is rotatably connected to the front surface of the box body (1) relative to the mounting cavity (11), characterized in that: A connection position (12) is provided at the opening of the installation cavity (11). A first rotating hole (121) and a second rotating hole (122) are respectively provided above and below one side of the inner wall of the connection position (12). A rotating column (21) is fixedly installed on the top surface of the box door (2), and the rotating column (21) is rotatably connected in the first rotating hole (121). A pin assembly (3) is installed on the lower part of the inner wall of the box door (2), and the lower end of the pin assembly (3) is inserted into the second rotating hole (122). An extension plate (15) is fixedly connected to the edge of the rear end face of the box body (1).

2. The distribution box according to claim 1, characterized in that: The pin assembly (3) includes a fixed base (31), a pin (32) and a spring (33). The fixed base (31) is installed on the inner wall surface of the door (2). The pin (32) is inserted into the fixed base (31), and the bottom of the pin (32) is inserted into the second rotating hole (122). The spring (33) is set in the fixed base (31) and sleeved on the surface of the pin (32).

3. The distribution box according to claim 2, characterized in that: The mounting base (31) includes a mounting plate (311) and a connecting plate (312). The rear end surface of the mounting plate (311) is in contact with the inner wall surface of the door (2). The front end surface of the mounting plate (311) is symmetrically connected with the connecting plate (312). The surface of the connecting plate (312) is provided with a socket (313) for the pin (32) to be inserted and connected. A spring (33) is provided between the two connecting plates (312). The upper end of the spring (33) is in contact with the surface of the connecting plate (312), and the lower end of the spring (33) is hooked onto the surface of the pin (32).

4. A distribution box according to claim 1, characterized in that: The inner wall surface of the mounting cavity (11) is fixedly connected to a mounting plate (311) that protrudes towards the rear end, and a mounting hole (14) is provided in the middle of the surface of the mounting plate (311).

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