Distribution box convenient to disassemble

Abstract

The utility model discloses a power distribution box convenient to disassemble, which relates to the technical field of power distribution boxes and comprises a power distribution box consisting of a box body, a fixed frame edge and an explosion-proof box cover, and a locking assembly, the locking assembly comprises a butt joint unit, a clamping unit and a locking bolt. The butt joint unit is used for realizing pre-butt joint of the explosion-proof box cover and the fixed frame edge; the clamping unit is used for being connected with the butt joint unit in a clamped mode and connected with the fixed frame edge and the outer portion of the anti-explosion box cover in a sleeved mode, and connection and fixation of the fixed frame edge and the anti-explosion box cover are achieved. And the locking bolts are used for fixing the clamping units and reinforcing the fixed frame edges and the explosion-proof box cover at the same time. According to the utility model, stable connection between the explosion-proof box cover and the fixed frame edge can be realized through the arrangement of the locking assembly, the explosion-proof requirement of the distribution box can be ensured, only two locking bolts need to be disassembled and assembled in the disassembly and assembly process, and compared with the traditional disassembly and assembly of a plurality of bolts which are distributed in a square shape, the overall operation is simpler, and the efficiency is higher.

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 disassemble. Background Art

[0002] The distribution box is a complete set of equipment used to centrally install switches, instruments and other equipment by assembling switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring. It has the characteristics of small size, easy installation, special technical performance, fixed position, unique configuration function, no site restrictions, stable and reliable operation, high space utilization, small footprint and environmental protection.

[0003] There are many types of distribution boxes according to their structural characteristics and uses. Among them, there is an explosion-proof distribution box. The explosion-proof distribution box is a type of distribution box with explosion-proof performance. It is suitable for power distribution in flammable and explosive places such as petrochemical plants, oil platforms, chemicals, pharmaceuticals, coal, smelting, shipbuilding, military industry, textiles, etc.

[0004] The cabinet door and the cabinet body of the existing explosion-proof distribution box are fixedly connected by multiple bolts arranged in a circle. When the cabinet door is disassembled or installed, the multiple bolts need to be loosened or tightened in turn, and this operation will take a long time to complete. This greatly interferes with the maintenance and repair efficiency of the internal equipment of the explosion-proof distribution box. Based on this, a distribution box that is easy to disassemble is provided. Utility Model Content

[0005] The purpose of the utility model is to provide a distribution box that is easy to disassemble in order to solve the problem in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a distribution box that is easy to disassemble, comprising a distribution box composed of a box body, a fixed frame edge, and an explosion-proof box cover, wherein the fixed frame edge is integrally formed at the edge of the opening end of the box body, and the explosion-proof box cover and the fixed frame edge are detachably fixed by a locking assembly;

[0007] The locking assembly includes a docking unit, a clamping unit, and a locking bolt;

[0008] The docking unit is used to achieve pre-docking of the explosion-proof box cover with the fixed frame edge;

[0009] The clamping unit is used to clamp with the docking unit, and to be sleeved with the fixed frame edge and the outside of the explosion-proof box cover to achieve the connection and fixation of the fixed frame edge and the explosion-proof box cover;

[0010] The locking bolt is used to penetrate the clamping unit, the fixed frame edge, and the explosion-proof box cover, so as to fix the clamping unit and reinforce the fixed frame edge and the explosion-proof box cover.

[0011] As a further solution of the utility model: the docking unit includes a fixing column, a conical clamping column, and a limiting round block;

[0012] The fixed column, the limiting circular block and the limiting circular block are fixed in sequence along the horizontal direction, the fixed column is fixed to one end of the fixed frame edge close to the explosion-proof box cover, and the docking units are evenly arranged along the track of the fixed frame edge, and the tracks of the multiple docking units are in the shape of a "mouth";

[0013] The end surface of the explosion-proof box cover is provided with docking holes corresponding to the positions of the docking units. The inner wall diameter of the docking holes matches the outer diameters of the fixed columns and the limiting round blocks and is larger than the outer diameter of the conical clamping columns. The explosion-proof box cover is clamped to the outer side of the docking unit through the docking holes to achieve pre-docking with the fixed frame edge.

[0014] As a further solution of the utility model: the clamping unit includes a side vertical plate, a horizontal horizontal plate, a C-shaped clamping plate, a vertical back plate, a sleeve hole, a clamping straight groove, and a side straight groove;

[0015] The C-shaped card plate and the vertical back plate are respectively fixed to the front and rear ends of the side vertical plate, and the horizontal cross plate is symmetrically fixed to the upper and lower ends of the side vertical plate, the C-shaped card plate, and the vertical back plate;

[0016] The sleeve hole and the card slot are provided at the horizontal transverse part of the C-shaped card and pass through the front and rear ends of the C-shaped card. The side straight slot is provided at the vertical part of the C-shaped card and passes through the front and rear ends of the C-shaped card and one side of the C-shaped card.

[0017] The said card-connecting units are provided with two groups, and the two said card-connecting units are symmetrically sleeved on both sides of the fixed frame edge and the explosion-proof box cover, the said side vertical plates are attached to the fixed frame edge and the side of the explosion-proof box cover, the said horizontal cross plates are attached to the upper and lower ends of the fixed frame edge and the explosion-proof box cover, the said vertical back plate is attached to the rear end of the fixed frame edge, and the said C-shaped card plate is attached to the front end of the explosion-proof box cover;

[0018] The C-shaped clamping plate is clamped with the docking unit through the sleeve hole, the clamping straight groove and the side straight groove respectively.

[0019] As a further solution of the utility model: the inner diameter of the sleeve hole matches the outer diameter of the limiting round block, the clamping straight groove and the side straight groove mouth match the maximum outer diameter of the conical clamping column, and the inner wall of the clamping straight groove and the side straight groove mouth away from the sleeve hole has a semi-conical structure and matches the outer wall trajectory of the conical clamping column.

[0020] As a further solution of the utility model: the width of the vertical back plate along the installation direction of the card connection unit is smaller than the width of the vertical portion of the C-shaped card plate.

[0021] As a further solution of the utility model: the clamping unit further includes a bottom arc-shaped hook block and a top arc-shaped hook block;

[0022] The bottom arc-shaped hook block and the top arc-shaped hook block are respectively fixed to the side surfaces of the joint positions of the two C-shaped clamping plates in the two sets of clamping units, and the bottom arc-shaped hook block and the top arc-shaped hook block are in a vertically symmetrical state;

[0023] The two C-shaped pallets are respectively formed with grooves for providing space for the bottom arc-shaped hook block and the top arc-shaped hook block to dock. When the two C-shaped pallets are spliced, the bottom arc-shaped hook block and the top arc-shaped hook block are spliced ​​to form a complete socket hole;

[0024] Threaded holes and through holes are respectively provided at positions where the fixed frame edge, the explosion-proof box cover and the socket holes formed by the bottom arc hook block and the top arc hook block are aligned. The locking bolt passes through the middle of the bottom arc hook block, the top arc hook block and the through hole and is threadedly connected with the threaded hole.

[0025] As a further solution of the utility model: the tightening direction of the thread of the locking bolt and the threaded hole is clockwise, and the loosening direction of the thread is counterclockwise.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] By setting a locking assembly, the explosion-proof box cover can be firmly connected to the fixed frame edge, which can ensure the explosion-proof requirements of the distribution box. During the disassembly and assembly process, only two locking bolts need to be disassembled and assembled. Compared with the traditional disassembly and assembly of multiple bolts distributed in a "mouth" shape, the overall operation is simpler and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the disassembled state of the card connection unit of the utility model;

[0030] Figure 3 This is a schematic diagram of the explosion-proof box cover and the docking unit of the utility model in a disassembled state;

[0031] Figure 4 It is a structural cross-sectional view of the clamping unit of the utility model;

[0032] Figure 5 It is a side sectional view of the fixed frame edge and the explosion-proof box cover of the utility model.

[0033] In the figure: 1. distribution box; 101. box body; 102. fixed frame edge; 103. explosion-proof box cover; 104. docking hole; 105. threaded hole; 106. through hole; 2. locking assembly; 201. docking unit; 2011. fixing column; 2012. conical clamping column; 2013. limiting round block; 202. clamping unit; 2021. side vertical plate; 2022. horizontal cross plate; 2023. C-type clamping plate; 2024. vertical back plate; 2025. socket hole; 2026. clamping straight groove; 2027. side straight groove; 2028. bottom arc hook block; 2029. top arc hook block; 203. locking bolt. DETAILED DESCRIPTION

[0034] 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 in 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.

[0035] See also Figures 1 to 5 In the embodiment of the utility model, a distribution box that is easy to disassemble includes a distribution box 1 composed of a box body 101, a fixed frame edge 102, and an explosion-proof box cover 103. The fixed frame edge 102 is integrally formed at the edge of the opening end of the box body 101, and the explosion-proof box cover 103 and the fixed frame edge 102 are detachably fixed by a locking assembly 2;

[0036] The locking assembly 2 includes a docking unit 201, a clamping unit 202, and a locking bolt 203;

[0037] The docking unit 201 is used to achieve pre-docking of the explosion-proof box cover 103 and the fixed frame edge 102;

[0038] The clamping unit 202 is used to clamp with the docking unit 201, and is sleeved with the outside of the fixed frame edge 102 and the explosion-proof box cover 103 to achieve the connection and fixation of the fixed frame edge 102 and the explosion-proof box cover 103;

[0039] The locking bolt 203 is used to penetrate the clamping unit 202, the fixed frame edge 102, and the explosion-proof box cover 103, so as to fix the clamping unit 202 and reinforce the fixed frame edge 102 and the explosion-proof box cover 103;

[0040] The docking unit 201 includes a fixing column 2011, a conical clamping column 2012, and a limiting round block 2013;

[0041] The fixed column 2011, the limiting circular block 2013 and the limiting circular block 2013 are fixed in sequence along the horizontal direction. The fixed column 2011 is fixed to one end of the fixed frame edge 102 close to the explosion-proof box cover 103. A plurality of docking units 201 are evenly arranged along the track of the fixed frame edge 102. The tracks of the plurality of docking units 201 are in the shape of a "mouth".

[0042] The end surface of the explosion-proof box cover 103 is provided with a docking hole 104 corresponding to the position of the docking unit 201. The inner wall diameter of the docking hole 104 matches the outer diameter of the fixed column 2011 and the limiting round block 2013 and is larger than the outer diameter of the conical clamping column 2012. The explosion-proof box cover 103 is clamped to the outer side of the docking unit 201 through the docking hole 104 to achieve pre-docking with the fixed frame edge 102.

[0043] The clamping unit 202 includes a side vertical plate 2021, a horizontal cross plate 2022, a C-shaped clamping plate 2023, a vertical back plate 2024, a sleeve hole 2025, a clamping straight groove 2026, and a side straight groove 2027;

[0044] The C-shaped card plate 2023 and the vertical back plate 2024 are respectively fixed to the front and rear ends of the side vertical plate 2021, and the horizontal cross plate 2022 is symmetrically fixed to the upper and lower ends of the side vertical plate 2021, the C-shaped card plate 2023, and the vertical back plate 2024;

[0045] The sleeve hole 2025 and the card slot 2026 are provided at the horizontal transverse part of the C-shaped card board 2023 and pass through the front and rear ends of the C-shaped card board 2023. The side straight slot 2027 is provided at the vertical part of the C-shaped card board 2023 and passes through the front and rear ends of the C-shaped card board 2023 and one side of the C-shaped card board 2023.

[0046] Two groups of the clamping units 202 are provided, and the two clamping units 202 are symmetrically sleeved on both sides of the fixed frame edge 102 and the explosion-proof box cover 103, the side vertical plates 2021 are attached to the sides of the fixed frame edge 102 and the explosion-proof box cover 103, the horizontal cross plates 2022 are attached to the upper and lower ends of the fixed frame edge 102 and the explosion-proof box cover 103, the vertical back plate 2024 is attached to the rear end of the fixed frame edge 102, and the C-shaped clamping plate 2023 is attached to the front end of the explosion-proof box cover 103;

[0047] The C-shaped clamping plate 2023 is clamped with the docking unit 201 through the sleeve hole 2025, the clamping straight groove 2026, and the side straight groove 2027;

[0048] The inner diameter of the sleeve hole 2025 matches the outer diameter of the limiting circular block 2013, the clamping straight groove 2026 and the side straight groove opening 2027 match the maximum outer diameter of the conical clamping column 2012, and the inner wall of the clamping straight groove 2026 and the side straight groove opening 2027 away from the sleeve hole 2025 is a semi-conical structure and matches the outer wall trajectory of the conical clamping column 2012;

[0049] The clamping unit 202 further includes a bottom arc-shaped hook block 2028 and a top arc-shaped hook block 2029;

[0050] The bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029 are respectively fixed to the side surfaces of the joint positions of the two C-shaped clamping plates 2023 in the two sets of clamping units 202, and the bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029 are in a vertically symmetrical state;

[0051] The two C-shaped pallets 2023 are respectively formed with grooves to provide space for the bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029 to dock. When the two C-shaped pallets 2023 are spliced, the bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029 are spliced ​​to form a complete socket hole 2025;

[0052] Threaded holes 105 and through holes 106 are respectively provided at positions where the fixed frame edge 102, the explosion-proof box cover 103 and the sleeve hole 2025 composed of the bottom arc hook block 2028 and the top arc hook block 2029 are aligned. The locking bolt 203 passes through the middle of the bottom arc hook block 2028, the top arc hook block 2029 and the through hole 106 and is threadedly connected with the threaded hole 105.

[0053] In this embodiment, when fixing the explosion-proof box cover 103 and the fixed frame edge 102, the operation steps are as follows:

[0054] First, align the docking hole 104 on the explosion-proof box cover 103 with the docking unit 201, then push the explosion-proof box cover 103 close to the fixed frame edge 102, and finally the explosion-proof box cover 103 is sleeved on the outside of the fixed column 2011 through the docking hole 104;

[0055] Then, the two sets of clamping units 202 are clamped to the explosion-proof box cover 103, the fixed frame edge 102, and the docking unit 201 from both sides. First, the sleeve hole 2025 on the C-shaped clamping plate 2023 is aligned with the docking unit 201 and pushed in horizontally and longitudinally (it should be noted that the longitudinal direction is the direction toward the explosion-proof box cover 103). When the limiting round block 2013 completely passes through the sleeve hole 2025 to the other end of the C-shaped clamping plate 2023, the clamping unit 201 can be pushed horizontally and transversely. 2 (it should be noted that the horizontal direction is toward the center line direction of the explosion-proof box cover 103 at this time), so that the conical clamping column 2012 is inserted into the inner part of the clamping straight groove 2026, and at the same time, the side straight groove 2027 is clamped into the outer side of the conical clamping column 2012 on the vertically distributed docking unit 201, the vertical back plate 2014 moves to the back side of the fixed frame edge 102 and fits with its back side, and the side vertical plate 2021 fits with the fixed frame edge 102 and the side of the explosion-proof box cover 103;

[0056] After the two sets of clamping units 202 are installed, the locking bolt 203 can be passed through the middle of the bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029 and penetrate the through hole 106, and finally screwed with the bolt hole 105. The end of the locking bolt 203 will squeeze the two C-shaped clamping plates 2023, and at the same time, the screw part of the locking bolt 203 will limit the bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029, so that the arc-shaped hook block 2028 and the top arc-shaped hook block 2029 cannot move horizontally.

[0057] By cooperating with the above multiple parts, the explosion-proof box cover 103 can be firmly connected to the fixed frame edge 102, which can ensure the explosion-proof requirements of the distribution box 1, and only two locking bolts 203 need to be disassembled and assembled during the disassembly and assembly process. Compared with the traditional disassembly and assembly of multiple bolts distributed in a "mouth" shape, the overall operation is simpler and more efficient.

[0058] Please refer to Figure 3 The width of the vertical back plate 2024 along the installation direction of the card unit 202 is smaller than the width of the vertical portion of the C-shaped card plate 2023.

[0059] In this embodiment, this structure ensures that when the C-shaped card plate 2023 is connected to the docking unit 201 through the connecting hole 2026 , the vertical back plate 2024 will not contact or collide with the explosion-proof box cover 103 and the fixed frame edge 102 .

[0060] Please refer to Figures 1 to 4 The tightening direction of the thread of the locking bolt 203 and the threaded hole 105 is clockwise, and the loosening direction of the thread is counterclockwise.

[0061] In this embodiment: after the two C-shaped clamping plates 2023 are spliced, when the locking bolt 203 passes through the middle area of ​​the bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029, the screw portion of the locking bolt 203 limits the bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029. At this time, if the C-shaped clamping plate 2023 moves outward, the extrusion force applied by the bottom arc-shaped hook block 2028 and the top arc-shaped hook block 2029 to the screw portion of the locking bolt 203 can cause it to rotate clockwise, thereby effectively preventing the locking bolt 203 from loosening and ensuring the fixing stability of the clamping unit 202.

[0062] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A distribution box that is easy to disassemble, comprising a distribution box (1) consisting of a box body (101), a fixed frame edge (102), and an explosion-proof box cover (103), wherein the fixed frame edge (102) is integrally formed at the edge of the opening end of the box body (101), characterized in that: The explosion-proof box cover (103) and the fixed frame edge (102) are detachably fixed via a locking assembly (2); The locking assembly (2) comprises a docking unit (201), a clamping unit (202), and a locking bolt (203); The docking unit (201) is used to achieve pre-docking of the explosion-proof box cover (103) and the fixed frame edge (102); The clamping unit (202) is used to clamp with the docking unit (201), and to be sleeved with the outside of the fixed frame edge (102) and the explosion-proof box cover (103), so as to achieve connection and fixation of the fixed frame edge (102) and the explosion-proof box cover (103); The locking bolt (203) is used to penetrate the clamping unit (202), the fixed frame edge (102), and the explosion-proof box cover (103), and is used to fix the clamping unit (202) and reinforce the fixed frame edge (102) and the explosion-proof box cover (103).

2. The easily disassembled distribution box according to claim 1, characterized in that: The docking unit (201) comprises a fixing column (2011), a conical clamping column (2012), and a limiting circular block (2013); The fixing column (2011), the limiting circular block (2013), and the limiting circular block (2013) are fixed in sequence along the horizontal direction; the fixing column (2011) is fixed to one end of the fixing frame edge (102) close to the explosion-proof box cover (103); a plurality of the docking units (201) are evenly arranged along the track of the fixing frame edge (102); and the tracks of the plurality of docking units (201) are in the shape of a "mouth"; The end surface of the explosion-proof box cover (103) is provided with docking holes (104) corresponding to the positions of the docking units (201) one by one, the inner wall diameter of the docking holes (104) matches the outer diameters of the fixed columns (2011) and the limiting round blocks (2013) and is larger than the outer diameter of the conical clamping columns (2012), and the explosion-proof box cover (103) is clamped to the outer side of the docking unit (201) through the docking holes (104) to achieve pre-docking with the fixed frame edge (102).

3. The easily disassembled distribution box according to claim 2, characterized in that: The clamping unit (202) comprises a side vertical plate (2021), a horizontal horizontal plate (2022), a C-shaped clamping plate (2023), a vertical back plate (2024), a sleeve hole (2025), a clamping straight groove (2026), and a side straight groove opening (2027); The C-shaped card plate (2023) and the vertical back plate (2024) are respectively fixed to the front and rear ends of the side vertical plate (2021), and the horizontal cross plate (2022) is symmetrically fixed to the upper and lower ends of the side vertical plate (2021), the C-shaped card plate (2023), and the vertical back plate (2024); The sleeve hole (2025) and the card-connecting straight groove (2026) are provided at the horizontal transverse part of the C-shaped card board (2023) and penetrate the front and rear ends of the C-shaped card board (2023); the side straight groove (2027) is provided at the vertical part of the C-shaped card board (2023) and penetrates the front and rear ends of the C-shaped card board (2023) and one side of the C-shaped card board (2023); The clamping units (202) are provided in two groups, and the two clamping units (202) are symmetrically sleeved on both sides of the fixed frame edge (102) and the explosion-proof box cover (103); the side vertical plates (2021) are attached to the sides of the fixed frame edge (102) and the explosion-proof box cover (103); the horizontal cross plates (2022) are attached to the upper and lower ends of the fixed frame edge (102) and the explosion-proof box cover (103); the vertical back plates (2024) are attached to the rear end of the fixed frame edge (102); and the C-shaped clamping plates (2023) are attached to the front end of the explosion-proof box cover (103); The C-shaped clamping plate (2023) is clamped with the docking unit (201) through the sleeve hole (2025), the clamping straight groove (2026), and the side straight groove opening (2027).

4. The easily disassembled distribution box according to claim 3, characterized in that: The inner diameter of the sleeve hole (2025) matches the outer diameter of the limiting circular block (2013); the clamping straight groove (2026) and the side straight groove opening (2027) match the maximum outer diameter of the conical clamping column (2012); and the inner wall of the clamping straight groove (2026) and the side straight groove opening (2027) away from the sleeve hole (2025) is in a semi-conical structure and matches the outer wall trajectory of the conical clamping column (2012).

5. The easily disassembled distribution box according to claim 3, characterized in that: The width of the vertical back plate (2024) along the installation direction of the card connection unit (202) is smaller than the width of the vertical portion of the C-shaped card plate (2023).

6. The easily disassembled distribution box according to claim 3, characterized in that: The clamping unit (202) further comprises a bottom arc-shaped hook block (2028) and a top arc-shaped hook block (2029); The bottom arc-shaped hook block (2028) and the top arc-shaped hook block (2029) are respectively fixed to the side surfaces of the joint positions of the two C-shaped clamping plates (2023) in the two groups of clamping units (202), and the bottom arc-shaped hook block (2028) and the top arc-shaped hook block (2029) are in a vertically symmetrical state; The two C-shaped card plates (2023) are respectively formed with grooves for providing space for the bottom arc-shaped hook block (2028) and the top arc-shaped hook block (2029) to butt against each other. When the two C-shaped card plates (2023) are spliced ​​together, the bottom arc-shaped hook block (2028) and the top arc-shaped hook block (2029) are spliced ​​together to form a completed socket hole (2025); A threaded hole (105) and a through hole (106) are respectively provided at positions where the fixed frame edge (102), the explosion-proof box cover (103) and the sleeve hole (2025) formed by the bottom arc-shaped hook block (2028) and the top arc-shaped hook block (2029) are aligned, and the locking bolt (203) passes through the middle of the bottom arc-shaped hook block (2028), the top arc-shaped hook block (2029) and the through hole (106) and is threadedly connected to the threaded hole (105).

7. The easily disassembled distribution box according to claim 6, characterized in that: The tightening direction of the thread of the locking bolt (203) and the threaded hole (105) is clockwise, and the loosening direction of the thread is counterclockwise.

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