Distribution box easy for device maintenance

Abstract

The utility model discloses a distribution box easy for device maintenance, and relates to the technical field of electrical equipment. The device comprises a box body, a plurality of sets of installation assemblies are arranged on the inner side of the box body from top to bottom at equal intervals, a U-shaped frame in each installation assembly is movably connected to the inner side of the box body through a sliding rail, a plurality of sets of installation plates are movably connected to the upper portion of the interior of each U-shaped frame from left to right at equal intervals, and a fixing plate is fixedly connected to the lower portion of the interior of each U-shaped frame; a plurality of sets of positioning columns movably penetrate through the front end face of the surface of the fixing plate from left to right at equal intervals. According to the utility model, the U-shaped frame and the mounting plate in the mounting assembly are movably connected, so that the electronic component on the independent mounting plate can be taken out for overhaul and maintenance, and the problem that the single electronic component is inconvenient to overhaul and maintain in the prior art is solved; the problem that an existing heat dissipation aluminum sheet is inconvenient to mount and dismount is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment, and particularly relates to a distribution box which is easy for device maintenance. Background Art

[0002] The important role that electricity plays in our lives and production cannot be ignored. It brings us great convenience and becomes an important energy source in our production and life. The most critical factor for the normal operation and transmission of electricity is electrical equipment. Electrical equipment is a general term for generators, transformers, power lines, circuit breakers and other equipment in the power system. Among them, the distribution box is a relatively common electrical equipment, which is the control center that directs various components in the power supply line to reasonably distribute electrical energy.

[0003] The document with the existing announcement number CN220209746U discloses a distribution box that is easy to maintain, comprising: an external box body, a plurality of heat dissipation aluminum sheets are welded on the internal upper side of the external box body, a heat conduction pipe runs through the heat dissipation aluminum sheets, a first semiconductor refrigeration device is fixedly connected to the left side of the external box body, and a second semiconductor refrigeration device is fixedly connected to the right side of the external box body;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The above-mentioned distribution box has several heat dissipation aluminum sheets welded on the upper inner side of the outer box body, and the heat dissipation aluminum sheets are penetrated by heat pipes. The heat dissipation aluminum sheets are an important part of the heat dissipation structure of the distribution box. However, since the heat dissipation aluminum sheets are connected to the outer box body by welding, the heat dissipation aluminum sheets are not easy to install and disassemble, and when the heat dissipation aluminum sheets are damaged, the heat dissipation effect of the distribution box will be affected;

[0006] 2. The distribution box mentioned above has support plates welded on the left and right sides of its internal box body, and a movable plate is provided on the upper part of the support plate, and the electronic components are installed through the mounting holes on the movable plate. However, since the support plate is an integral structure and a plurality of electronic components are usually installed on a support plate, when one electronic component is damaged, the remaining intact electronic components will also move to the outside of the distribution box with the movable plate, and then when the damaged electronic components are repaired or replaced, the repair tools are prone to collide with the intact electronic components, which can easily lead to damage to other electronic components during the repair process.

[0007] To this end, we provide a distribution box that is easy to maintain devices to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide a distribution box that is easy for device maintenance. By means of the movable connection between the U-shaped frame in the installation assembly and the installation plate, it is possible to remove, inspect and maintain the electronic components on the separate installation plate, thereby solving the existing problem of inconvenience in inspecting and maintaining a single electronic component. By means of the L-shaped plate in the heat dissipation assembly, the connecting plate and the heat dissipation aluminum sheet are installed, thereby solving the existing problem of inconvenience in installing and disassembling the heat dissipation aluminum sheet.

[0009] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0010] The utility model is a distribution box that is easy to maintain components, comprising a box body, a plurality of groups of mounting components are arranged at equal intervals from top to bottom on the inner side of the box body, and a heat dissipation component is also arranged at the rear end of the box body;

[0011] The U-shaped frame in the installation assembly is movably connected to the inner side of the box body through a slide rail, and multiple groups of mounting plates are movably connected at equal intervals from left to right on the upper part of the U-shaped frame, and a fixing plate is fixedly connected to the lower part of the U-shaped frame. Multiple groups of positioning columns are movably penetrated from the front end of the surface of the fixing plate at equal intervals from left to right, and the top ends of the positioning columns are all clearance-fitted inside the positioning holes located at the front end of the lower surface of the mounting plate;

[0012] The installation frame in the heat dissipation assembly passes through the rear end surface of the box body, the top of the installation frame is fixedly connected to a cooling shell, the bottom of the cooling shell passes through a U-shaped tube, the bottom end of the U-shaped tube is located on the inner side of the installation frame, and the outer wall of the U-shaped frame is sleeved with heat dissipation aluminum fins, one end of the heat dissipation aluminum fins respectively passes through the outer walls of both sides of the installation frame and are fixedly connected to a connecting plate, and both sides of the rear end surface of the installation frame are rotatably connected with multiple groups of L-shaped plates at equal intervals from top to bottom, and the longitudinal arms of the L-shaped plates are respectively fixedly connected to the outer wall of the connecting plate on one side away from the heat dissipation aluminum fins.

[0013] The utility model is further configured as follows: sliding grooves are provided on both side outer walls of the U-shaped frame, and the sliding rails are fixedly connected to the both side inner walls of the box body respectively, and the insides of the sliding grooves and the sliding rails are fixedly connected to sliding rods, and a sliding block is slidably sleeved on the outer wall of the sliding rod.

[0014] The utility model is further configured that a box door is rotatably connected to the front end surface of the box body, a handle is welded to one side of the front end surface of the box door, and supporting feet are welded around the bottom of the box body.

[0015] The utility model is further configured as follows: a plurality of mounting rods are welded at equal intervals from left to right on the upper inner portion of the U-shaped frame; the mounting plates are slidably sleeved on the outer walls of the mounting rods; a plurality of threaded holes are provided at equal intervals from front to back on both sides of the surface of the mounting plates; a plurality of through grooves are provided at equal intervals from left to right on the rear end of the upper surface of the fixed plate; a moving block is movably connected inside the through grooves; the top of the moving block is welded to the rear end of the lower surface of the mounting plate; a first return spring is welded on the rear end surface of the moving block; and the rear end of the first return spring is fixedly connected to the inner rear end of the U-shaped frame.

[0016] The utility model is further configured as follows: baffles are sleeved on the outer walls of the positioning columns, the baffles are located above the fixed plates, pull plates are welded to the bottom ends of the positioning columns, pull rings are welded to the lower surfaces of the pull plates, and a second return spring is sleeved on the outer sides of the positioning columns, and the two ends of the second return spring are respectively fixedly connected to the lower surface of the fixed plate and the upper surface of the pull plate.

[0017] The utility model is further configured such that a circulating fan is fixedly connected to the inner center of the cooling shell, and semiconductor refrigeration sheets are penetrated through the outer walls on both sides of the cooling shell.

[0018] The utility model is further configured such that connecting rods are welded above and below the outer wall of one side of the connecting plate away from the heat dissipation aluminum sheet, and one end of the connecting rod away from the connecting plate passes through the longitudinal arm of the L-shaped plate and is threadedly sleeved with a nut.

[0019] The utility model is further configured such that both sides of the rear end surface of the mounting frame are rotatably connected with a rotating shaft through a mounting seat, the L-shaped plates are laterally sleeved on the outer wall of the rotating shaft, and both ends of the rotating shaft pass through the mounting seat and are respectively fixedly connected with a knob and a gear.

[0020] The utility model is further configured such that a filter screen is fixedly connected to the inner front end of the installation frame.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model sets an installation component, drives the positioning column to move through the pull ring and the pull plate, thereby releasing the limiting effect of the positioning column on the installation plate, and under the action of the first reset spring, the installation plate drives the electronic components to pop out from the U-shaped frame, thereby facilitating the inspection and maintenance of a single electronic component. At the same time, when all the electronic components need to be taken out, it is only necessary to apply external force to the U-shaped frame to move the U-shaped frame out of the box.

[0023] 2. The utility model sets a heat dissipation component and drives the L-shaped plate to rotate through the rotating shaft, so that the longitudinal arm of the L-shaped plate contacts the connecting plate, and the connecting rod on the connecting plate passes through the longitudinal arm of the L-shaped plate. At the same time, the nut threaded sleeve is set on the connecting rod to complete the installation of the heat dissipation aluminum sheet, which is convenient for quick installation and disassembly of the heat dissipation aluminum sheet.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of a distribution box that is easy to maintain components;

[0027] Figure 2 It is a structural schematic diagram of the box body of the utility model;

[0028] Figure 3 It is a structural schematic diagram of the installation assembly of the utility model;

[0029] Figure 4 This is a structural disassembly diagram of the U-shaped frame of the utility model;

[0030] Figure 5 This is a bottom view of the mounting plate of the utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the positioning column of the utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the heat dissipation component of the utility model;

[0033] Figure 8 It is a partial cross-sectional view of the cooling shell of the utility model;

[0034] Fig. 9 This is a schematic diagram of the structure of the heat dissipation aluminum sheet of the utility model;

[0035] Fig.10 It is a structural schematic diagram of the L-shaped plate of the utility model.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1-box body, 101-box door, 102-handle, 103-support foot, 2-installation assembly, 201-U-shaped frame, 201a-slide groove, 201b-mounting rod, 202-slide rail, 202a-slide rod, 202b-slider, 203-mounting plate, 203a-positioning hole, 203b-threaded hole, 203c-moving block, 203d-first return spring, 204-fixed plate, 204a-through groove, 205-positioning column, 205a-baffle, 205b-second return spring, 206-pull plate, 206a-pull ring, 3-heat dissipation assembly, 301-installation frame, 302-cooling shell, 302a-circulation fan, 302b-semiconductor refrigeration plate, 303-U-shaped tube, 304-heat dissipation aluminum plate, 305-connecting plate, 305a-connecting rod, 305b-nut, 306-L-shaped plate, 306a-rotating shaft, 306b-mounting seat, 306c-knob, 306d-gear, 307-filter. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0040] See also Figure 1-6 As shown, it is the first embodiment of the utility model. This embodiment provides a distribution box that is easy to maintain components, including a box body 1. A plurality of groups of mounting components 2 are arranged at equal intervals from top to bottom on the inner side of the box body 1. The mounting components 2 include a U-shaped frame 201, a mounting plate 203 and a positioning column 205. Through the movable connection between the U-shaped frame 201 and the mounting plate 203, a single or all electronic components can be taken out for inspection and maintenance as needed, thereby solving the existing problem of inconvenience in inspecting and maintaining a single electronic component.

[0041] Specifically, the U-shaped frame 201 is movably connected to the inner side of the box body 1 through the slide rail 202, and multiple groups of mounting plates 203 are movably connected at equal intervals from left to right on the upper part of the U-shaped frame 201, and a fixing plate 204 is fixedly connected to the lower part of the U-shaped frame 201. Multiple groups of positioning columns 205 are movably penetrated from the front end surface of the surface of the fixing plate 204 at equal intervals from left to right, and the top ends of the positioning columns 205 are clearance-fitted in the positioning holes 203a located at the front end of the lower surface of the mounting plate 203. The setting of the slide rail 202 enables the U-shaped frame 201 to be movably installed on the inner side of the box body 1, and the setting of the U-shaped frame 201 facilitates the removal of all electronic components. At the same time, the movable connection between the U-shaped frame 201 and the mounting plate 203 facilitates the removal of a single electronic component, and the setting of the positioning columns 205 enables the positioning between the U-shaped frame 201 and the mounting plate 203.

[0042] Furthermore, the outer walls of both sides of the U-shaped frame 201 are provided with slide grooves 201a, and the slide rails 202 are respectively fixedly connected to the inner walls of both sides of the box body 1. The insides of the slide grooves 201a and the slide rails 202 are fixedly connected with slide rods 202a, and the outer wall of the slide rod 202a is slidably sleeved with sliders 202b. The setting of the slide rod 202a realizes the sliding connection between the slider 202b and the U-shaped frame 201 and the slide rail 202, and the movable connection between the slide rail 202 and the U-shaped frame 201 is realized by the setting of the slider 202b.

[0043] A box door 101 is rotatably connected to the front face of the box body 1, a handle 102 is welded to one side of the front face of the box door 101, and support feet 103 are welded around the bottom of the box body 1. The setting of the box door 101 protects the internal electronic components, the setting of the handle 102 facilitates opening or closing the box door 101, and the setting of the support feet 103 realizes the support of the box body 1 to prevent the ground from being wet and affecting the electronic components in the box body 1;

[0044] A plurality of mounting rods 201b are welded at equal intervals from left to right on the upper inner part of the U-shaped frame 201, and the mounting plates 203 are all slidably sleeved on the outer walls of the mounting rods 201b. The arrangement of the mounting rods 201b realizes the movable connection between the U-shaped frame 201 and the mounting plate 203. A plurality of threaded holes 203b are arranged at equal intervals from front to back on both sides of the surface of the mounting plate 203. The arrangement of the threaded holes 203b realizes the fixing of electronic components on the mounting plate 203. The rear end of the upper surface of the fixing plate 204 is fixed from the left to the right. There are multiple groups of through slots 204a at equal intervals to the right, and the interiors of the through slots 204a are all movably connected with moving blocks 203c, the top of the moving block 203c is welded to the rear end of the lower surface of the mounting plate 203, and a first return spring 203d is welded to the rear end surface of the moving block 203c, and the rear end of the first return spring 203d is fixedly connected to the rear end of the interior of the U-shaped frame 201. The arrangement of the moving block 203c and the first return spring 203d enables the mounting plate 203 to pop out quickly after the limit is released;

[0045] Baffle plates 205a are sleeved on the outer walls of the positioning columns 205, and the baffle plates 205a are located above the fixed plates 204. A pull plate 206 is welded to the bottom end of the positioning columns 205, and a pull ring 206a is welded to the lower surface of the pull plate 206. A second return spring 205b is sleeved on the outer side of the positioning columns 205, and the two ends of the second return spring 205b are respectively fixedly connected to the lower surface of the fixed plate 204 and the upper surface of the pull plate 206. The setting of the baffle plate 205a prevents the top end of the positioning column 205 from being separated from the fixed plate 204. At the same time, the setting of the pull plate 206 and the pull ring 206a facilitates the application of external force to the positioning column 205, thereby facilitating the positioning column 205 to move out of the positioning hole 203a. The setting of the second return spring 205b realizes the automatic return of the positioning column 205.

[0046] The operation process of this embodiment is as follows: first, the box door 101 is opened by the handle 102, and a single or all electronic components are selected for maintenance and repair according to the needs; when all electronic components need to be repaired and maintained, an external force is applied to the U-shaped frame 201, so that under the action of the slider 202b, the U-shaped frame 201 slides relative to the slide rail 202, so that the U-shaped frame 201 drives all electronic components to move to the outside of the box body 1, and repair and maintain them; when a single electronic component needs to be repaired and maintained, an external force is applied to the positioning column 205 through the pull ring 206a and the pull plate 206, so that the top of the positioning column 205 moves out of the positioning hole 203a, and the limit of the mounting plate 203 is released at this time, and under the action of the first reset spring 203d, the mounting plate 203 moves relative to the U-shaped frame 201, so that the single electronic component moves to the outside of the box body 1, and repair and maintain it. Specific embodiment 2

[0048] See also Figure 7-10 As shown, the second embodiment of the utility model is based on the previous embodiment, but is different from the previous embodiment in that a heat dissipation component 3 is also provided at the rear end of the box body 1, and the heat dissipation component 3 includes a mounting frame 301, a cooling shell 302, a U-shaped tube 303, a heat dissipation aluminum sheet 304, a connecting plate 305 and an L-shaped plate 306. The heat dissipation aluminum sheet 304 is fixed inside the mounting frame 301 by fixing the L-shaped plate 306 and the connecting plate 305, thereby solving the existing problem of inconvenience in installing and disassembling the heat dissipation aluminum sheet 304.

[0049] Specifically, the installation frame 301 passes through the rear end surface of the box body 1, the top of the installation frame 301 is fixedly connected with a cooling shell 302, the bottom of the cooling shell 302 passes through the U-shaped tube 303, the bottom end of the U-shaped tube 303 is located on the inner side of the installation frame 301, and the outer wall of the U-shaped frame 201 is sleeved with a heat dissipation aluminum sheet 304, and the surface of the heat dissipation aluminum sheet 304 is provided with a U-shaped groove to facilitate the U-shaped tube 303 to pass through the heat dissipation aluminum sheet 304, one end of the heat dissipation aluminum sheet 304 passes through the outer walls of both sides of the installation frame 301 and is fixedly connected with a connecting plate 305, and both sides of the rear end surface of the installation frame 301 are from top to bottom A plurality of groups of L-shaped plates 306 are rotatably connected at equal intervals, and the longitudinal arms of the L-shaped plates 306 are respectively fixedly connected to the outer wall of the connecting plate 305 on one side away from the heat dissipation aluminum sheet 304. The installation frame 301 is used to install structures such as the cooling shell 302. The installation of the cooling shell 302 and the U-shaped tube 303 realizes cooling the inner side of the box body 1. At the same time, the installation of the heat dissipation aluminum sheet 304 strengthens the heat exchange between the U-shaped tube 303 and the air inside the box body 1, thereby enhancing the cooling speed. The installation of the connecting plate 305 and the L-shaped plate 306 realizes the installation of the heat dissipation aluminum sheet 304 inside the installation frame 301.

[0050] Furthermore, a circulating fan 302a is fixedly connected to the inner center of the cooling shell 302, and semiconductor cooling sheets 302b are penetrated on both outer walls of the cooling shell 302. The setting of the circulating fan 302a realizes the circulation of air in the U-shaped tube 303, and the setting of the semiconductor cooling sheet 302b realizes cooling the interior of the cooling shell 302, and the heat absorbing end of the semiconductor cooling sheet 302b is located on the inner side of the cooling shell 302, and the heat releasing end of the semiconductor cooling sheet 302b is located on the outer side of the cooling shell 302;

[0051] Connecting rods 305a are welded on the upper and lower sides of the outer wall of the connecting plate 305 away from the heat dissipation aluminum sheet 304. One end of the connecting rod 305a away from the connecting plate 305 passes through the longitudinal arm of the L-shaped plate 306 and is threadedly sleeved with a nut 305b. The setting of the connecting rod 305a and the nut 305b realizes the fixation between the connecting plate 305 and the L-shaped plate 306.

[0052] Both sides of the rear end surface of the installation frame 301 are rotatably connected with the rotating shaft 306a through the mounting seat 306b, and the L-shaped plate 306 is sleeved on the outer wall of the rotating shaft 306a in the horizontal direction. Both ends of the rotating shaft 306a pass through the mounting seat 306b and are respectively fixedly connected with a knob 306c and a gear 306d. The setting of the rotating shaft 306a realizes the rotatable installation of the L-shaped plate 306 on the installation frame 301, the setting of the knob 306c facilitates the rotation of the rotating shaft 306a, and the setting of the gear 306d realizes the synchronous reverse rotation between the rotating shafts 306a;

[0053] The front end of the installation frame 301 is fixedly connected with a filter 307 . The filter 307 is provided to prevent dust in the installation frame 301 from entering the inner side of the box body 1 , or to prevent dust inside the box body 1 from entering the installation frame 301 .

[0054] The rest of the structure is the same as that of the first embodiment.

[0055] The operation process of this embodiment is: first, the end of the heat dissipation aluminum sheet 304 away from the connecting plate 305 is passed through the outer walls of both sides of the installation frame 301 and extended to both sides of the U-shaped tube 303, and then an external force is applied to the knob 306c, so that the knob 306c drives the rotating shaft 306a and the L-shaped plate 306 to rotate synchronously, and the connecting rod 305a passes through the longitudinal support arm of the L-shaped plate 306, and finally the nut 305b is threadedly sleeved on the connecting rod 305a, thereby completing the installation of the heat dissipation aluminum sheet 304.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A distribution box for easy device maintenance, comprising a box body (1), characterized in that: The inner side of the box body (1) is provided with a plurality of installation components (2) at equal intervals from top to bottom, and the U-shaped frame (201) in the installation component (2) is movably connected to the inner side of the box body (1) via a slide rail (202), the upper part of the U-shaped frame (201) is movably connected with a plurality of installation plates (203) at equal intervals from left to right, and the lower part of the U-shaped frame (201) is fixedly connected with a fixing plate (204), the front end surface of the surface of the fixing plate (204) is movably penetrated with a plurality of positioning columns (205) at equal intervals from left to right, and the top ends of the positioning columns (205) are all clearance-fitted inside the positioning holes (203a) located at the front end of the lower surface of the installation plate (203); The rear end of the box body (1) is also provided with a heat dissipation assembly (3), and the installation frame (301) in the heat dissipation assembly (3) passes through the rear end surface of the box body (1), the top of the installation frame (301) is fixedly connected with a cooling shell (302), and the bottom of the cooling shell (302) passes through the U-shaped tube (303), the bottom end of the U-shaped tube (303) is located on the inner side of the installation frame (301), and the outer wall of the U-shaped frame (201) is sleeved with heat dissipation aluminum sheets (304), one end of the heat dissipation aluminum sheets (304) respectively passes through the outer walls of both sides of the installation frame (301) and is fixedly connected with a connecting plate (305), and both sides of the rear end surface of the installation frame (301) are rotatably connected with multiple groups of L-shaped plates (306) at equal intervals from top to bottom, and the longitudinal arms of the L-shaped plates (306) are respectively fixedly connected to the outer wall of the connecting plate (305) on one side away from the heat dissipation aluminum sheets (304).

2. A distribution box for easy device maintenance according to claim 1, characterized in that: The outer walls on both sides of the U-shaped frame (201) are provided with sliding grooves (201a), the sliding rails (202) are respectively fixedly connected to the inner walls on both sides of the box body (1), and the insides of the sliding grooves (201a) and the sliding rails (202) are fixedly connected with sliding rods (202a), and the outer walls of the sliding rods (202a) are slidably sleeved with sliding blocks (202b).

3. A distribution box for easy device maintenance according to claim 2, characterized in that: A box door (101) is rotatably connected to the front end surface of the box body (1), and a handle (102) is welded to one side of the front end surface of the box door (101), and supporting legs (103) are welded around the bottom of the box body (1).

4. A distribution box for easy device maintenance according to claim 1, characterized in that: A plurality of mounting rods (201b) are welded at equal intervals from left to right on the upper part of the U-shaped frame (201); the mounting plates (203) are slidably sleeved on the outer walls of the mounting rods (201b); and a plurality of threaded holes (203b) are provided at equal intervals from front to back on both sides of the surface of the mounting plates (203); a plurality of through grooves (204a) are provided at equal intervals from left to right on the rear end of the upper surface of the fixing plate (204); and a moving block (203c) is movably connected inside the through groove (204a); the top of the moving block (203c) is welded to the rear end of the lower surface of the mounting plate (203); and a first return spring (203d) is welded on the rear end surface of the moving block (203c); and the rear end of the first return spring (203d) is fixedly connected to the rear end of the interior of the U-shaped frame (201).

5. A distribution box for easy device maintenance according to claim 1, characterized in that: The outer wall of the positioning column (205) is sleeved with a baffle (205a), and the baffle (205a) is located above the fixed plate (204). The bottom end of the positioning column (205) is welded with a pull plate (206), and the lower surface of the pull plate (206) is welded with a pull ring (206a). The outer side of the positioning column (205) is sleeved with a second return spring (205b), and the two ends of the second return spring (205b) are respectively fixedly connected to the lower surface of the fixed plate (204) and the upper surface of the pull plate (206).

6. A distribution box for easy device maintenance according to claim 1, characterized in that: A circulating fan (302a) is fixedly connected to the inner center of the cooling shell (302), and semiconductor cooling fins (302b) are penetrated through the outer walls on both sides of the cooling shell (302).

7. A distribution box for easy device maintenance according to claim 1, characterized in that: Connecting rods (305a) are welded on the upper and lower sides of the outer wall of one side of the connecting plate (305) away from the heat dissipation aluminum sheet (304), and one end of the connecting rod (305a) away from the connecting plate (305) passes through the longitudinal arm of the L-shaped plate (306) and is threadedly sleeved with a nut (305b).

8. A distribution box for easy device maintenance according to claim 1, characterized in that: Both sides of the rear end surface of the installation frame (301) are rotatably connected to a rotating shaft (306a) via a mounting seat (306b), the L-shaped plate (306) is laterally sleeved on the outer wall of the rotating shaft (306a), and both ends of the rotating shaft (306a) pass through the mounting seat (306b) and are respectively fixedly connected to a knob (306c) and a gear (306d).

9. A distribution box for easy device maintenance according to claim 8, characterized in that: A filter screen (307) is fixedly connected to the inner front end of the installation frame (301).

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