Low-voltage cabinet with suspension structure

Abstract

A low-voltage cabinet with a suspension structure relates to the technical field of low-voltage cabinets and comprises a supporting plate, a plurality of mounting plates are fixedly arranged on opposite side walls of the supporting plate, a supporting cylinder in threaded connection with the mounting plates penetrates through the ends of the mounting plates, an extrusion cylinder in threaded connection with the supporting cylinder is sleeved at the open end of the supporting cylinder, and a plurality of penetrating grooves are formed in the outer wall of the supporting cylinder in a penetrating manner. A rotating plate rotationally connected with the supporting cylinder is arranged in the penetrating groove, an arc-shaped column is fixedly connected to the end of the rotating plate, a plurality of protruding structures are arranged on the outer wall of the arc-shaped column, a moving column is horizontally and movably arranged in the supporting cylinder, a plurality of supporting strips in friction contact with the rotating plate are fixedly arranged on the outer wall of the moving column, and a compression spring is arranged in the supporting cylinder. The two ends of the compression spring abut against the movable column and the extrusion cylinder correspondingly, and an inner frame is fixedly arranged at the end of the supporting plate. According to the invention, the problem that the existing low-voltage cabinet is easy to loosen or fall off in a special environment is solved; and internal devices are difficult to disassemble and assemble. The fixing piece cannot be repeatedly used; and the dismounting process is tedious.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage cabinets, in particular to a low-voltage cabinet with a suspension structure. Background Art

[0002] Low-voltage cabinets are key equipment in power distribution systems. Their primary function is to switch, control, and protect electrical equipment during power generation, transmission, distribution, and conversion. Components within a low-voltage cabinet primarily include circuit breakers, disconnectors, load switches, operating mechanisms, transformers, and various protective devices. The cabinet is typically constructed of metal to provide mechanical support and protection. Low-voltage cabinets are widely used in industrial, commercial, and residential power distribution systems.

[0003] Low-voltage cabinets are mainly divided into two types according to the installation method: floor-standing and wall-mounted. Floor-standing low-voltage cabinets are usually larger in size and higher in capacity. They are directly installed on the ground or on a base and are suitable for places with large power demand, such as distribution rooms, substations and large commercial facilities; wall-mounted low-voltage cabinets are smaller in size and flexible in installation. They are directly fixed on the wall and are suitable for scenarios with limited space or small power load, such as distribution rooms in residential buildings, industrial plants, rail transit facilities, quarries and other spaces.

[0004] The existing wall-mounted low-voltage cabinets have gradually exposed their shortcomings during use, mainly in the following aspects: First, low-voltage cabinets in special environments are prone to loosening or falling off. Specifically, wall-mounted low-voltage cabinets are usually fixed to the wall with expansion bolts. In rail transit facilities (such as subway substations, distribution points along railways) or quarries, which are accompanied by continuous vibration, the vibrations generated continuously impact the expansion bolts, causing the gap between the bolts and the wall to gradually widen, and the fixing effect to weaken, eventually causing the expansion bolts to loosen, and then causing the low-voltage cabinet as a whole to loosen or fall off, which not only threatens the safe operation of the equipment, but may also cause serious electrical accidents.

[0005] Second, it is difficult to disassemble and assemble the components inside the low-voltage cabinet. Specifically, the components in the low-voltage cabinet are usually fixed to the mounting bars with bolts. However, due to the large thickness of some components, the internal space of the cabinet is deep. When disassembling and assembling thinner components, the staff's arms need to be extended into the low-voltage cabinet to operate. However, the space inside the cabinet is narrow and the layout is compact, making it difficult to stretch the arms flexibly, resulting in difficulty in disassembly and assembly.

[0006] Third, the fixings cannot be reused and the disassembly process is cumbersome. Specifically, low-voltage cabinets are usually fixed to the wall with expansion bolts. The expansion bolts rely on the deformation of the expansion tube to generate friction to fix them in the wall. The deformed expansion tube cannot be reset, so the expansion bolts cannot be reused. When disassembling the expansion bolts, the head must be destroyed first, and then the remaining expansion tube must be forcibly pulled out of the wall with tools. Therefore, the disassembly process is cumbersome and time-consuming, and causes great damage to the wall structure, leaving holes or cracks.

[0007] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0008] In view of the defects in the prior art, the technical problem to be solved by the present invention is to provide a low-voltage cabinet with a suspension structure. The suspension structure of the low-voltage cabinet can firmly fix the low-voltage cabinet in a vibration environment, effectively avoiding the problem of the cabinet body loosening or falling off, and improving the safety and reliability of the equipment. When disassembling and assembling components of the low-voltage cabinet, all components can be leaked out, making it easier for workers to disassemble and assemble components, further improving the practicality of the equipment; The suspension structure of the low-voltage cabinet adopts a detachable design, which does not require destructive disassembly of the suspension structure. It can not only be reused, but also has a simple disassembly process, which also facilitates the subsequent maintenance and repair of internal parts, thereby improving the practicality and economy of the equipment.

[0009] In order to solve the above problems, the present invention provides the following technical solutions: The top end of the support frame is provided with a plurality of support bars, and the outer wall of the support frame is provided with a plurality of support bars.

[0010] As an optimized solution, the inner wall of the through groove is provided with a limiting structure for limiting the arc column.

[0011] As an optimized solution, the outer wall of the movable column is provided with a plurality of mounting grooves, and the mounting grooves are provided with universal balls threadedly connected to the movable column. The inner wall of the support tube is provided with a plurality of ball slide grooves and avoidance grooves, and the universal balls are rolled in the ball slide grooves, and the avoidance grooves are connected to the through grooves.

[0012] As an optimized solution, positioning cylinders are fixedly provided on the inner wall of the extrusion cylinder and the end of the movable column, and the two ends of the compression spring are respectively located in the two positioning cylinders.

[0013] As an optimized solution, a through hole is penetrated through the inner wall of the positioning cylinder at the end of the movable column, and a mounting threaded hole is provided at the end of the movable column.

[0014] As an optimized solution, the outer wall of the support cylinder is provided with a threaded section, and the outer walls of the support cylinder and the extrusion cylinder are both provided with a bolt head structure.

[0015] As an optimized solution, the opposite side walls of the outer frame are provided with a number of installation openings that are set through, and the installation openings are provided with rollers that are detachably connected to the outer frame. The opposite side walls of the inner frame are provided with a number of roller guide grooves, and the rollers are set to roll in the roller guide grooves.

[0016] As an optimized solution, a plurality of mounting L-shaped plates are fixedly connected to the opposite side walls of the outer frame, and the rollers are detachably connected to the mounting L-shaped plates.

[0017] As an optimized solution, the inner frame is provided with a through-hole relative to the inner wall, and the outer frame is provided with a limiting threaded hole relative to the inner wall. A limiting bolt is provided in the inner frame, and the threaded end of the limiting bolt passes through the through-hole and is threadedly connected to the limiting threaded hole.

[0018] As an optimized solution, a plurality of wire holes are provided through the bottom of the inner frame, and a plurality of avoidance grooves are provided through the bottom of the outer frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. When fixing the support plate, first screw the support tube to the mounting plate, open corresponding holes on the wall according to the arrangement of the four support tubes, then insert one end of the mobile column into the support tube, the universal ball is located in the ball slide groove, and the support bar is located in the avoidance groove, then screw the long bolt into the mounting threaded hole, and then push the long bolt to fully insert the mobile column into the support tube, and use the long bolt to drive the mobile column to rotate until it is limited, continue to use the long bolt to push the mobile column inward until the support bar enters the through groove, then insert the support tube into the hole in the wall, remove the long bolt and install the compression spring in the positioning tube at the end of the mobile column, and the other end of the compression spring One end is installed in the positioning cylinder on the inner wall of the extrusion cylinder. The extrusion cylinder is twisted with a tool, and the compression spring is compressed. During the compression of the compression spring, the movable column is pushed inward, thereby driving the support bar to move. When the support bar contacts the rotating plate, it drives the rotating plate to rotate outward until the arc column abuts against the wall to support the support cylinder. At this point, the support plate is fixed. When disassembling, the operation can be reversed. The suspension structure of the low-voltage cabinet adopts a detachable design. There is no need to destructively disassemble the suspension structure. It can not only be reused, but also has a simple disassembly process. It is also convenient for the later maintenance and repair of internal parts, thereby improving the practicality and economy of the equipment. 2. When the extrusion cylinder is screwed into contact with the mounting plate, the compression spring is fully compressed. When the suspension structure is used in a vibrating environment for a long time, the vibration generated will continuously impact the suspension structure. When a gap is generated between the arc column and the wall, the compression spring pushes the movable column and the support bar to move horizontally. The support bar pushes the rotating plate to rotate further outward, thereby ensuring that the arc column is always in contact with the wall to provide support for the support cylinder. The suspension structure of the low-voltage cabinet can firmly fix the support plate in a vibrating environment, effectively avoiding the problem of the cabinet loosening or falling off, and improving the safety and reliability of the equipment; 3. When assembling the low-voltage cabinet shell, first fix the components to the mounting bars with bolts. After the components are installed, put the outer frame on the outer wall of the inner frame and fix the outer frame and the inner frame with limit bolts. When performing minor maintenance on the components inside the low-voltage cabinet, just open the closed door to operate. When performing major maintenance on the components inside the low-voltage cabinet, remove the outer frame and all the components will be exposed, making it easier for staff to operate the components. The low-voltage cabinet is easy to operate when disassembling and installing internal components, further improving the practicality of the equipment. 4. Long bolts can be installed through the provided mounting threaded holes. The use of long bolts facilitates the pushing, pulling and rotation of the mobile column in the support cylinder, simplifying the installation and disassembly process of the mobile column. The provided positioning cylinder facilitates the installation of the compression spring to prevent its two ends from jumping. 5. The universal ball not only supports the moving column, but also controls its movement. The ball slide groove can limit the universal ball, thereby limiting the moving column, preventing the moving column from rotating in the support tube and causing the support bar and the rotating plate to be misaligned. The avoidance groove can prevent the support bar from interfering with the rotating plate when entering the through groove. 6. The limiting structure in the through-groove can prevent the arc column and the rotating plate from entering the interior of the support tube, thereby preventing interference with the installation of the movable column. The raised structure on the outer wall of the arc column can enhance the anti-slip effect. The bolt head structure on the outer wall of the support tube and the extrusion tube facilitates disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention when it is installed on a wall; Figure 2 It is a schematic structural diagram of the present invention as a whole; Figure 3 This is a structural diagram of the support tube of the present invention installed in the wall; Figure 4 It is a structural schematic diagram of the support cylinder and the extrusion cylinder of the present invention; Figure 5 This is a schematic structural diagram of the through-groove of the present invention; Figure 6 It is a structural schematic diagram of the movable column of the present invention; Figure 7 This is a schematic diagram of the structure inside the support cylinder and the extrusion cylinder of the present invention; Figure 8 It is a structural schematic diagram of the inner frame of the present invention; Figure 9 It is a structural schematic diagram of the outer frame of the present invention; Figure 10 It is a structural diagram of the ball slideway of the present invention; Figure 11 It is a structural schematic diagram of the avoidance groove of the present invention; Figure 12 It is a schematic structural diagram of the roller, universal ball and avoidance groove of the present invention.

[0022] In the figure: 1-support plate; 2-wall; 3-outer frame; 4-closed door; 5-wire hole; 6-limiting bolt; 7-inner frame; 8-mounting plate; 9-extrusion cylinder; 10-support cylinder; 11-jack; 12-mounting bar; 13-roller guide groove; 14-limiting threaded hole; 15-avoidance groove; 16-mounting port; 17-roller; 18-mounting L-shaped plate; 19-threaded section; 20-bolt head structure; 21-arc column; 22-rotating plate; 23-through groove; 24-positioning cylinder; 25-compression spring; 26-through hole; 27-mounting threaded hole; 28-mounting groove; 29-universal ball; 30-support bar; 31-moving column; 32-ball slide groove; 33-avoidance groove; 34-raised structure; 35-limiting structure. DETAILED DESCRIPTION

[0023] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0024] like Figures 1 to 12 As shown, a low-voltage cabinet with a suspension structure includes a support plate 1, and several mounting plates 8 are fixedly provided on the opposite side walls of the support plate 1. The ends of the mounting plate 8 are penetrated by a support tube 10 threadedly connected thereto, and the open end of the support tube 10 is sleeved with an extrusion tube 9 threadedly connected thereto. The outer wall of the support tube 10 is provided with several through-grooves 23 arranged therethrough, and a rotating plate 22 rotatably connected to the support tube 10 is provided in the through-grooves 23. The end of the rotating plate 22 is fixedly connected with an arc column 21, and the outer wall of the arc column 21 is provided with several convex structures 34. A moving column 31 is provided in the support tube 10 for horizontal movement, and several support bars 30 in frictional contact with the rotating plate 22 are fixed on the outer wall of the moving column 31. A compression spring 25 is provided in the support tube 10, and the two ends of the compression spring 25 correspond to the moving column 31 and the extrusion tube 9. An inner frame 7 is fixed to the end of the support plate 1, and the outer wall of the inner frame 7 is sleeved with a detachable outer frame 3. The open end of the outer frame 3 is hinged with a closed door 4, and the end of the support plate 1 is detachably provided with several mounting bars 12.

[0025] A limiting structure 35 for limiting the position of the arc column 21 is provided on the inner wall of the through slot 23 .

[0026] The outer wall of the movable column 31 is provided with a plurality of mounting grooves 28, and the mounting grooves 28 are provided with universal balls 29 threadedly connected to the movable column 31. The inner wall of the support tube 10 is provided with a plurality of ball slide grooves 32 and avoidance grooves 33. The universal balls 29 are rolled in the ball slide grooves 32, and the avoidance grooves 33 are connected to the through grooves 23.

[0027] Positioning cylinders 24 are fixedly provided on the inner wall of the extrusion cylinder 9 and the end of the movable column 31 , and both ends of the compression spring 25 are respectively located in the two positioning cylinders 24 .

[0028] A through hole 26 is formed through the inner wall of the positioning cylinder 24 at the end of the moving column 31 , and a mounting threaded hole 27 is formed at the end of the moving column 31 .

[0029] A threaded section 19 is provided on the outer wall of the support cylinder 10 , and a bolt head structure 20 is provided on the outer walls of both the support cylinder 10 and the extrusion cylinder 9 .

[0030] The outer frame 3 has a plurality of mounting openings 16 extending through the opposite side walls thereof. The mounting openings 16 have rollers 17 detachably connected to the outer frame 3 . The inner frame 7 has a plurality of roller guide grooves 13 on the opposite side walls thereof. The rollers 17 are arranged to roll in the roller guide grooves 13 .

[0031] A plurality of mounting L-shaped plates 18 are fixedly connected to opposite side walls of the outer frame 3 , and the rollers 17 are detachably connected to the mounting L-shaped plates 18 .

[0032] The inner frame 7 is provided with a through-hole 11 relative to the inner wall, and the outer frame 3 is provided with a limiting threaded hole 14 relative to the inner wall. A limiting bolt 6 is provided in the inner frame 7, and the threaded end of the limiting bolt 6 passes through the through-hole 11 and is threadedly connected to the limiting threaded hole 14.

[0033] A plurality of wire holes 5 are formed through the bottom of the inner frame 7 , and a plurality of avoidance grooves 15 are formed through the bottom of the outer frame 3 .

[0034] The working principle of this device is: When fixing the support plate 1, first screw the support tube 10 to the mounting plate 8, open corresponding holes on the wall 2 according to the arrangement of the four support tubes 10, then insert one end of the movable column 31 into the support tube 10, the universal ball 29 is located in the ball slide groove 32, and the support bar 30 is located in the avoidance groove 33, then screw the long bolt into the mounting threaded hole 27, and then push the long bolt to completely insert the movable column 31 into the support tube 10, and drive the movable column 31 to rotate by the long bolt until it is limited, continue to use the long bolt to push the movable column 31 inward until the support bar 30 enters the through groove 23, then insert the support tube 10 into the hole in the wall 2, remove the long bolt and install the compression spring 25 into the positioning tube 24 at the end of the movable column 31 The other end of the compression spring 25 is installed in the positioning cylinder 24 of the inner wall of the extrusion cylinder 9. The extrusion cylinder 9 is twisted with a tool, and the compression spring 25 is compressed. During the compression of the compression spring 25, the movable column 31 is pushed to move inward, thereby driving the support bar 30 to move. When the support bar 30 contacts the rotating plate 22, it drives the rotating plate 22 to rotate outward until the arc column 21 is against the wall 2 and thus supports the support cylinder 10. At this point, the fixation of the support plate 1 is completed, and the reverse operation can be performed when disassembling. The suspension structure of the low-voltage cabinet adopts a detachable design. There is no need to destructively disassemble the suspension structure. It can not only be reused, but also has a simple disassembly process. It is also convenient for the later maintenance and repair of internal parts, thereby improving the practicality and economy of the equipment. When the extrusion cylinder 9 is screwed to contact with the mounting plate 8, the compression spring 25 is fully compressed. When the suspension structure is used for a long time in a vibrating environment, the vibration generated continuously impacts the suspension structure. When a gap is generated between the arc column 21 and the wall 2, the compression spring 25 pushes the movable column 31 and the support bar 30 to move horizontally, and the support bar 30 pushes the rotating plate 22 to rotate further outward, thereby ensuring that the arc column 21 is always in contact with the wall 2 to provide support for the support cylinder 10. The suspension structure of the low-voltage cabinet can achieve a firm fixation of the support plate 1 in a vibrating environment, effectively avoiding the problem of the cabinet loosening or falling off, and improving the safety and reliability of the equipment. When assembling the low-voltage cabinet shell, first fix the components on the mounting strips 12 with bolts. After the components are installed, the outer frame 3 is sheathed on the outer wall of the inner frame 7, and the outer frame 3 and the inner frame 7 are fixed by the limit bolts 6. When performing minor maintenance on the components inside the low-voltage cabinet, the closed door 4 can be opened for operation. When performing major maintenance on the components inside the low-voltage cabinet, the outer frame 3 is removed and all the components are exposed, making it easier for the staff to operate the components. The low-voltage cabinet is easy to operate when disassembling and assembling the internal components, further improving the practicality of the equipment. The provided mounting threaded holes 27 allow for the installation of long bolts, which facilitate the pushing, pulling, and rotation of the movable column 31 within the support cylinder 10, simplifying the installation and removal process of the movable column 31. The provided positioning cylinder 24 facilitates the installation of the compression spring 25, preventing its ends from bouncing. The universal ball 29 not only supports the movable column 31 but also controls the movement of the movable column 31. The universal ball 29 is restricted by the ball slide 32, thereby restricting the movable column 31, preventing the movable column 31 from rotating in the support cylinder 10 and causing the support bar 30 to be misaligned with the rotating plate 22. The avoidance groove 33 prevents the support bar 30 from interfering with the rotating plate 22 when entering the through groove 23. The limiting structure 35 in the through groove 23 can prevent the arc column 21 and the rotating plate 22 from entering the interior of the support tube 10, thereby preventing interference with the installation of the movable column 31. The raised structure 34 on the outer wall of the arc column 21 can enhance the anti-slip effect. The bolt head structure 20 on the outer wall of the support tube 10 and the extrusion tube 9 is convenient for disassembly and assembly.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A low-voltage cabinet with a suspension structure, characterized in that: The invention comprises a support plate (1), wherein the opposite side walls of the support plate (1) are fixedly provided with a plurality of mounting plates (8), the end of the mounting plate (8) is penetrated by a support tube (10) threadedly connected thereto, the open end of the support tube (10) is sleeved with an extrusion tube (9) threadedly connected thereto, the outer wall of the support tube (10) is provided with a plurality of through grooves (23) through-set, the through grooves (23) are provided with a rotating plate (22) rotatably connected to the support tube (10), the end of the rotating plate (22) is fixedly connected to an arc column (21), the outer wall of the arc column (21) is provided with a plurality of protruding structures (34), the support tube (10) is provided with a moving column (31) for horizontal movement, and the outer wall of the moving column (31) is fixed with a plurality of support bars (30) in frictional contact with the rotating plate (22), and a compression spring (25) is provided in the support tube (10), and the two ends of the compression spring (25) are correspondingly against the moving column (31) and the extrusion tube (9), and an inner frame (7) is fixedly provided at the end of the support plate (1), and the outer wall of the inner frame (7) is provided with a detachable outer frame (3), and the open end of the outer frame (3) is hinged with a closed door (4), and the end of the support plate (1) is detachably provided with a plurality of mounting bars (12).

2. The low-voltage cabinet with a suspension structure according to claim 1, characterized in that: The inner wall of the through groove (23) is provided with a limiting structure (35) for limiting the arc column (21).

3. The low-voltage cabinet with a suspension structure according to claim 2, characterized in that: The outer wall of the movable column (31) is provided with a plurality of mounting grooves (28), and a universal ball (29) is provided in the mounting groove (28) and is threadedly connected to the movable column (31). The inner wall of the support tube (10) is provided with a plurality of ball sliding grooves (32) and avoidance grooves (33), and the universal ball (29) is rolled in the ball sliding grooves (32), and the avoidance grooves (33) are connected to the through groove (23).

4. The low-voltage cabinet with a suspension structure according to claim 1, characterized in that: Positioning cylinders (24) are fixedly provided on the inner wall of the extrusion cylinder (9) and the end of the movable column (31), and both ends of the compression spring (25) are respectively located in the two positioning cylinders (24).

5. The low-voltage cabinet with a suspension structure according to claim 4, characterized in that: A through hole (26) is provided through the inner wall of the positioning cylinder (24) at the end of the movable column (31), and a mounting threaded hole (27) is provided at the end of the movable column (31).

6. The low-voltage cabinet with a suspension structure according to claim 1, characterized in that: The outer wall of the support cylinder (10) is provided with a threaded section (19), and the outer walls of the support cylinder (10) and the extrusion cylinder (9) are both provided with a bolt head structure (20).

7. The low-voltage cabinet with a suspension structure according to claim 1, characterized in that: The opposite side walls of the outer frame (3) are each provided with a plurality of mounting openings (16) extending therethrough, wherein rollers (17) detachably connected to the outer frame (3) are provided in the mounting openings (16), and the opposite side walls of the inner frame (7) are each provided with a plurality of roller guide grooves (13), wherein the rollers (17) are rollingly arranged in the roller guide grooves (13).

8. The low-voltage cabinet with a suspension structure according to claim 7, characterized in that: A plurality of mounting L-shaped plates (18) are fixedly connected to opposite side walls of the outer frame (3), and the rollers (17) are detachably connected to the mounting L-shaped plates (18).

9. The low-voltage cabinet with a suspension structure according to claim 7, characterized in that: The inner frame (7) is provided with a through-hole (11) relative to the inner wall, and the outer frame (3) is provided with a limiting threaded hole (14) relative to the inner wall. A limiting bolt (6) is provided in the inner frame (7), and the threaded end of the limiting bolt (6) passes through the through-hole (11) and is threadedly connected to the limiting threaded hole (14).

10. The low-voltage cabinet with a suspension structure according to claim 1, characterized in that: A plurality of wire holes (5) are provided through the bottom of the inner frame (7), and a plurality of avoidance grooves (15) are provided through the bottom of the outer frame (3).

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