Electric power cabinet component fixing framework capable of being quickly disassembled and assembled

Abstract

The invention discloses an electric power cabinet component fixing framework capable of being quickly disassembled and assembled, which comprises an electric power cabinet, a cabinet door is rotatably mounted on the outer side of the electric power cabinet through a hinge, two magnet strips are arranged on the inner side of the cabinet door, the two magnet strips attract the side of the electric power cabinet, and a plurality of heat dissipation holes are formed in the two sides of the electric power cabinet. A transparent plate is arranged on the cabinet door; the two vertical rails are fixedly installed on the inner walls of the two sides of the power cabinet, sliding rail grooves are formed in the inner sides of the two vertical rails, openings are formed in the tops of the two sliding rail grooves, and a plurality of positioning grooves are formed in the side walls of the sliding rail grooves; the three framework fixing mechanisms are installed between the two vertical rails in a sliding mode. According to the device, through a magnetic machine coupling locking mechanism, the electric appliance fixing framework mechanism can be quickly disassembled and assembled, the top of the vertical rail is designed to be open, the sliding rail block is allowed to be vertically inserted / pulled out, the installation number can be selected, and the installation and use height is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of power cabinets, and particularly to a fixed skeleton for power cabinet components that can be quickly disassembled and assembled. Background Art

[0002] A power cabinet is a cabinet made of steel materials to protect components from normal operation. The production materials of power cabinets are generally divided into two types: hot-rolled steel plates and cold-rolled steel plates. Cold-rolled steel plates are relatively softer in material and more suitable for the production of power cabinets.

[0003] The patent document with the authorization announcement number: CN215582323U and the main classification number: H05K7 discloses a fixed skeleton for power cabinet components that can be quickly disassembled and assembled, including an outer frame. Fixed plates are fixedly installed on the upper and lower side walls inside the outer frame. A limiting slide plate is provided at one end of the two fixed plates close to each other. Upper sliding grooves that are slidably connected to the fixed plate close to the top are provided on the top wall surfaces of the two limiting slide plates, and lower sliding grooves that are slidably connected to the fixed plate close to the bottom are provided on the bottom wall surfaces of the two limiting slide plates. Limiting sliders in a "T" shape are fixedly installed on the front side wall surfaces of the two limiting slide plates, and a placement rod is provided at the front end of each of the two limiting slide plates. Move the limiting slide plate downward to make the lower sliding groove slidably connected to the fixed plate close to the bottom. When the two limiting slide plates are both placed between the two fixed plates, the skeleton is installed. Conversely, the operation can disassemble the skeleton, achieving the effect of convenient disassembly and assembly.

[0004] The existing fixed skeleton for power cabinet components uses a "T" shape for installation, with poor installation stability, or is fixed in the cabinet through screws, and the installation quantity and height cannot be easily adjusted. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a fixed skeleton for power cabinet components that can be quickly disassembled and assembled, aiming at the problems of the existing fixed skeleton for power cabinet components using a "T" shape for installation with poor installation stability, or being fixed in the cabinet through screws and not being able to easily adjust the installation quantity and height.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: A fixed skeleton for power cabinet components that can be quickly disassembled and assembled, including: A power cabinet, on the outside of which a cabinet door is rotatably installed through a hinge. Two magnet bars are provided on the inner side of the cabinet door, and both magnet bars are attracted to the side of the power cabinet. A plurality of heat dissipation holes are provided on both sides of the power cabinet, and a transparent plate is provided on the cabinet door; Two vertical rails, both fixedly installed on the inner walls on both sides of the power cabinet. Slide rail grooves are provided on the inner sides of the two vertical rails, the tops of the two slide rail grooves are both open, and a plurality of positioning grooves are provided on the side walls of the slide rail grooves; Three skeleton fixing mechanisms are slidably installed between two vertical rails; Three electrical component fixing skeleton mechanisms, used for installing components, are installed on the three skeleton fixing mechanisms.

[0007] Preferably, the skeleton fixing mechanism includes a fixing box, a manual unit, and two permanent magnet units. A sealing plate is fixedly installed on the rear side of the fixing box. Two transverse sliding rods are fixedly installed inside the fixing box. Four pressing plates are slidably installed on the outer sides of the two transverse sliding rods. Plastic tension springs are fixedly installed on the outer sides of the four pressing plates. Force-receiving blocks are fixedly installed on the outer sides of the four plastic tension springs. The four force-receiving blocks are all fixedly installed on the bottom inner wall of the fixing box; the tension of the plastic tension springs provides a reset tension for the pressing plates.

[0008] Preferably, slide rail blocks are fixedly installed on both sides of the fixing box. Round holes are provided on the two slide rail blocks. Positioning rods are slidably installed in the two round holes. The round holes are slidably connected to the inner walls of the corresponding slide rail grooves. The positioning rods are adapted to the corresponding positioning grooves. Push rods are fixedly installed on the inner sides of the two round holes. Push rod sliding holes are provided on the four pressing plates. The two push rods are slidably connected to the inner walls of the corresponding two push rod sliding holes; when the two positioning rods enter the two positioning grooves, the fixing box is fixed between the two vertical rails.

[0009] Preferably, the permanent magnet unit includes a passive rod. The passive rod is rotatably installed on the rear inner wall of the fixing box through a bearing. A high-strength permanent magnet is fixedly installed at the outer end of the passive rod. A passive gear is fixedly installed on the outer side of the passive rod. A bottom groove is provided at the bottom of the push rod. A rack is fixedly installed on the top inner wall of the bottom groove. The rack is meshed with the passive gear. The high-strength permanent magnet is located between the corresponding two pressing plates. Magnet rods are fixedly installed on the inner sides of the two pressing plates. The inner sides of the two magnet rods have opposite magnetic polarities. The two ends of the high-strength permanent magnet have opposite magnetic polarities. The two ends of the high-strength permanent magnet are adapted to the two magnet rods; when the high-strength permanent magnet is in a horizontal state, the magnetic polarities of the two ends of the high-strength permanent magnet are the same as the magnetic polarities of the corresponding two magnet rods, attracting the two magnet rods to approach each other. The two magnet rods drive the two pressing plates to approach each other. The two pressing plates drive the corresponding four locking blocks to insert into the four locking grooves, and the plug-in block can be locked in the fixing box. The magnetic suction force between the high-strength permanent magnet and the two magnet rods is greater than the tension of the plastic spring.

[0010] Preferably, the manual unit includes a rotating rod, a circular torsion handle is fixedly installed at the outer end of the rotating rod, the rotating rod is rotatably installed at the central position of the fixed box through a bearing, an elliptical plate is provided at the inner end of the rotating rod, two force transmission rods are rotatably installed at both ends of the elliptical plate through pin shafts, and pin shaft blocks are rotatably installed at the outer ends of the two force transmission rods through pin shafts. The two pin shaft blocks are fixedly installed with the tops of the two push rods. Two semi-circular stable grooves are provided on the outer side of the fixed box. The included angle between the two semi-circular stable grooves with the rotating rod as the axis is 45°. A elastic groove is provided on the inner side of the circular torsion handle, a stable rod is slidably installed in the elastic groove, a spring is installed between the stable rod and the elastic groove, and the stable rod is matched with the semi-circular stable groove to improve the stability of the circular torsion handle at rest; when the circular torsion handle is rotated by a certain angle, the circular torsion handle drives the rotating rod to rotate, the rotating rod drives the elliptical plate to rotate, the elliptical plate pushes the two push rods away from each other through the two force transmission rods and the two pin shaft blocks, drives the driven gear to rotate through the rack, and the driven gear drives the high-strength permanent magnet to rotate 90° through the driven rod, so that the high-strength permanent magnet is in a horizontal state. When the circular torsion handle is rotated reversely by 45°, the high-strength permanent magnet is in a vertical state, and the two magnet rods lose magnetism with the corresponding driven gears.

[0011] Preferably, the electrical fixed skeleton mechanism includes two support pieces, two L-shaped mounting strips are fixedly installed on the outer sides of the two support pieces, cooperation blocks are fixedly installed on the inner sides of the two support pieces, the two cooperation blocks are matched with the two cooperation notches, insertion blocks are fixedly installed on the inner sides of the two cooperation blocks, and the two insertion blocks are matched with the two jacks. The electrical fixed skeleton mechanism is installed on the outer side of the fixed box. Two jacks are provided on the top of the fixed box, and cooperation notches are provided on the outer sides of the two jacks; the insertion blocks are inserted into the corresponding jacks, and the cooperation blocks enter the corresponding cooperation notches to perform preliminary positioning on the electrical fixed skeleton mechanism.

[0012] Preferably, two locking grooves are provided on both sides of the insertion block, two locking blocks are fixedly installed on the inner side of the pressing plate, and the two locking blocks are matched with the corresponding two locking grooves for fixing the electrical fixed skeleton mechanism on the fixed box.

[0013] Compared with the prior art, the beneficial effects that the present invention can achieve are: In the present invention, the electrical fixed skeleton mechanism is installed on the skeleton fixing mechanism. The insertion blocks are inserted into the corresponding jacks, the cooperation blocks enter the corresponding cooperation notches, and then the circular torsion handle is rotated by a certain angle. The circular torsion handle drives the rotating rod to rotate, the rotating rod drives the elliptical plate to rotate, the elliptical plate pushes the two push rods away from each other through the two force transmission rods and the two pin shaft blocks, and the two push rods push the two positioning rods into the two positioning grooves to fix the fixed box between the two vertical rails.

[0014] When the push rod of the present invention moves, it drives the passive gear to rotate through the rack. The passive gear drives the high-strength permanent magnet to rotate 90° through the passive rod, so that the high-strength permanent magnet is in a horizontal state. The magnetic properties at both ends of the high-strength permanent magnet are the same as those of the corresponding two magnet rods, attracting the two magnet rods to approach each other. The two magnet rods drive the two pressing plates to approach each other, and the two pressing plates drive the corresponding four locking blocks to insert into the four locking grooves, so that the plug-in block can be locked in the fixed box. When the round twist handle is rotated, the stabilizing rod enters from one semi-circular stabilizing groove into the other semi-circular stabilizing groove. Through the elastic force of the spring, the stability of the round twist handle at rest is improved, and the electrical fixed skeleton mechanism can be fixed quickly.

[0015] When the round twist handle of the present invention is rotated reversely by 45°, through the above-mentioned force transmission, the two push rods approach each other. The push rod drives the positioning rod to leave the positioning groove, releasing the fixation between the fixed box and the two vertical rails, and the use height of the skeleton fixation mechanism between the two vertical rails can be adjusted. The high-strength permanent magnet is in a vertical state, and the two magnet rods and the corresponding passive gears lose magnetism. Through the reset pulling force of the plastic tension spring, the two pressing plates on the outside of the same high-strength permanent magnet move away from each other, and the locking blocks leave the corresponding locking grooves, releasing the fixation of the plug-in block. At the same time, when the electrical fixed skeleton mechanism is pulled upward, the two plug-in blocks leave the corresponding two jacks, and the skeleton fixation mechanism and the electrical fixed skeleton mechanism can be disassembled quickly.

[0016] Since the tops of the two slide rail grooves opened at the top of the two vertical rails of the present invention are open, the two slide rail blocks on the outside of the fixed box slide out from the tops of the two slide rail grooves, and the skeleton fixation mechanism can be removed from between the two vertical rails. Similarly, the number of uses of the skeleton fixation mechanism can be increased.

[0017] In summary, through the magnetic coupling locking mechanism, the present invention has achieved a breakthrough improvement in the installation and maintenance efficiency of the power cabinet. It can quickly disassemble and assemble the electrical fixed skeleton mechanism, and is particularly suitable for the intelligent substation scenario where components need to be replaced frequently. The open design at the top of the vertical rails allows the slide rail blocks to be inserted / extracted vertically, realizing the overall quick disassembly and assembly of the skeleton mechanism. The installation quantity can be selected, and the installation use height can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is for the Figure 1 structural schematic diagram when the middle cabinet door is opened of the present invention; Figure 3 is the rear view structural schematic diagram of the two vertical rails, three skeleton fixation mechanisms, and three electrical fixed skeleton mechanisms of the present invention; Figure 4Front view structural schematic diagram of two vertical rails, three skeleton fixing mechanisms and three electrical appliance fixing skeleton mechanisms of the present invention; Figure 5 Of the present invention Figure 3 Structural schematic diagram after the disassembly of three plugging plates in; Figure 6 Structural schematic diagram of the vertical rail and its related parts in the present invention; Figure 7 Structural schematic diagram of the skeleton fixing mechanism and the electrical appliance fixing skeleton mechanism in the present invention; Figure 8 Bottom view structural schematic diagram of the skeleton fixing mechanism and the electrical appliance fixing skeleton mechanism of the present invention; Figure 9 Rear view structural schematic diagram of the skeleton fixing mechanism and the electrical appliance fixing skeleton mechanism of the present invention; Figure 10 Structural schematic diagram of the extrusion plate, plastic tension spring, force receiving block, locking block and their related parts in the present invention; Figure 11 In the present invention Figure 10 Side view structural schematic diagram of; Figure 12 Structural schematic diagram of the push rod, passive rod, passive gear, high-strength permanent magnet and their related parts in the present invention; Figure 13 Structural schematic diagram of the manual unit in the present invention; Figure 14 Cross-sectional structural schematic diagram of the circular torsion handle, stabilizing rod and spring in the present invention.

[0019] Wherein: 1, power cabinet; 11, heat dissipation holes; 12, cabinet door; 13, transparent plate; 14, magnet strip; 2, vertical rail; 21, slide rail groove; 22, positioning groove; 3, skeleton fixing mechanism; 31, fixing box; 32, plugging plate; 33, transverse slide bar; 34, extrusion plate; 341, plastic tension spring; 342, force receiving block; 343, magnet rod; 344, locking block; 345, push rod slide hole; 35, manual unit; 351, circular torsion handle; 352, rotating rod; 353, elliptical plate; 354, force transmission rod; 355, shaft pin block; 356, stabilizing rod; 357, elastic groove; 358, spring; 36, slide rail block; 361, round hole; 37, jack; 38, mating notch; 39, permanent magnet unit; 391, passive rod; 392, passive gear; 393, high-strength permanent magnet; 310, push rod; 311, bottom opening groove; 312, rack; 313, positioning rod; 301, semi-circular stabilizing groove; 4. Electrical fixed skeleton mechanism; 41. Support piece; 42. L-shaped installation strip; 43. Insertion block; 44. Locking groove; 45. Matching block. Detailed implementation manner

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments can be obtained from commercial channels unless otherwise specified. Embodiment 1

[0021] As Figures 1 - 14 shown, the present invention provides a quickly detachable fixing skeleton for electrical cabinet components, including an electrical cabinet 1, two vertical rails 2, three skeleton fixing mechanisms 3 and three electrical fixed skeleton mechanisms 4. The outer side of the electrical cabinet 1 is rotatably installed with a cabinet door 12 through a hinge. Two magnet strips 14 are arranged on the inner side of the cabinet door 12, and both two magnet strips 14 are attracted to the side of the electrical cabinet 1. A plurality of heat dissipation holes 11 are opened on both sides of the electrical cabinet 1, and a transparent plate 13 is arranged on the cabinet door 12. Both two vertical rails 2 are fixedly installed on the inner side walls of both sides of the electrical cabinet 1. Slide rail grooves 21 are opened on the inner sides of both two vertical rails 2. The tops of both two slide rail grooves 21 are open, and a plurality of positioning grooves 22 are opened on the side walls of the slide rail grooves 21. Three skeleton fixing mechanisms 3 are slidably installed between the two vertical rails 2, and three electrical fixed skeleton mechanisms 4 are installed on the three skeleton fixing mechanisms 3. Specifically, the independent bearing capacity of each of the three groups of skeleton mechanisms reaches 80 kg / group, and the slide rail system supports a vertical movement speed of 0.5 m / s per second (compared with the traditional guide rail system of 0.2 m / s).

[0022] As Figure 5 , Figures 7 - 12 shown, in this embodiment, the skeleton fixing mechanism 3 includes a fixing box 31, a manual unit 35 and two permanent magnet units 39. A plugging plate 32 is fixedly installed on the rear side of the fixing box 31. Two transverse sliding rods 33 are fixedly installed in the fixing box 31. Four pressing plates 34 are slidably installed on the outer sides of both two transverse sliding rods 33. Plastic tension springs 341 are fixedly installed on the outer sides of the four pressing plates 34. Force receiving blocks 342 are fixedly installed on the outer sides of the four plastic tension springs 341. All four force receiving blocks 342 are fixedly installed on the bottom inner wall of the fixing box 31; the tension of the plastic tension spring 34 provides a reset tension for the pressing plate 34.

[0023] As Figure 5 , Figures 7 - 12As shown in the figure, in this embodiment, slide rail blocks 36 are fixedly installed on both sides of the fixed box 31. Circular holes 361 are formed in both slide rail blocks 36. Positioning rods 313 are slidably installed in both circular holes 361. The circular holes 361 are slidably connected to the inner walls of the corresponding slide rail grooves 21. The positioning rods 313 are adapted to the corresponding positioning grooves 22. Push rods 310 are fixedly installed on the inner sides of both circular holes 361. Push rod sliding holes 345 are formed in all four pressing plates 34. The two push rods 310 are slidably connected to the inner walls of the corresponding two push rod sliding holes 345. When the two positioning rods 313 enter the two positioning grooves 22, the fixed box 31 is fixed between the two vertical rails 2.

[0024] As Figure 5 , Figures 7 - 12 As shown in the figure, in this embodiment, the permanent magnet unit 39 includes a passive rod 391. The passive rod 391 is rotatably installed on the rear inner wall of the fixed box 31 through a bearing. A high-strength permanent magnet 393 is fixedly installed at the outer end of the passive rod 391. A passive gear 392 is fixedly installed on the outer side of the passive rod 391. A bottom groove 311 is formed at the bottom of the push rod 310. A rack 312 is fixedly installed on the top inner wall of the bottom groove 311. The rack 312 meshes with the passive gear 392. The high-strength permanent magnet 393 is located between the corresponding two pressing plates 34. Magnet rods 343 are fixedly installed on the inner sides of the two pressing plates 34. The inner sides of the two magnet rods 343 have opposite magnetic polarities. The two ends of the high-strength permanent magnet 393 have opposite magnetic polarities. The two ends of the high-strength permanent magnet 393 are adapted to the two magnet rods 343.

[0025] Specifically, the high-strength permanent magnet 393 is in a horizontal state. The magnetic polarities of the two ends of the high-strength permanent magnet 393 are the same as those of the corresponding two magnet rods 343, attracting the two magnet rods 343 to approach each other. The two magnet rods 343 drive the two pressing plates 34 to approach each other. The two pressing plates 34 drive the corresponding four locking blocks 344 to insert into the four locking grooves 44, and the plug-in block 43 can be locked in the fixed box 31. The magnetic suction force between the high-strength permanent magnet 393 and the two magnet rods 343 is greater than the pulling force of the plastic spring 34. By using the design of the polarity matching of the high-strength permanent magnet (surface magnetic energy product ≥ 50MGOe) and the magnet rod, the contact pressure > 300N is achieved. Compared with the traditional screw fixing method, the installation time is shortened from an average of 5 minutes per piece to 8 seconds per piece, and a static load of 50 kg can be borne in the locked state (tested according to the GB / T 2423.5-2019 standard).

[0026] As Figure 13 , Figure 14As shown, in this embodiment, the manual unit 35 includes a rotating rod 352. A circular torsion handle 351 is fixedly installed at the outer end of the rotating rod 352. The rotating rod 352 is rotatably installed at the central position of the fixed box 31 through a bearing. An elliptical plate 353 is provided at the inner end of the rotating rod 352. Two transmission rods 354 are rotatably installed at both ends of the elliptical plate 353 through pins. At the outer ends of the two transmission rods 354, pin blocks 355 are rotatably installed through pins. The two pin blocks 355 are fixedly installed at the tops of the two push rods 310. Two semi-circular stabilizing grooves 301 are provided on the outer side of the fixed box 31. The included angle between the two semi-circular stabilizing grooves 301 with the rotating rod 352 as the axis is 45°. A elastic groove 357 is provided inside the circular torsion handle 351. A stabilizing rod 356 is slidably installed in the elastic groove 357. A spring 358 is installed between the stabilizing rod 356 and the elastic groove 357. The stabilizing rod 356 cooperates with the semi-circular stabilizing groove 301 to improve the stability of the circular torsion handle 351 when it is stationary.

[0027] Specifically, rotate the circular torsion handle 351 by 45 degrees in cooperation with the block 45. The circular torsion handle 351 drives the rotating rod 352 to rotate. The rotating rod 352 drives the elliptical plate 353 to rotate. The elliptical plate 353 pushes the two push rods 310 away from each other through the two transmission rods 354 and the two pin blocks 355. The rack 312 drives the driven gear 392 to rotate by 90 degrees. The driven gear 392 drives the high-strength permanent magnet 393 to rotate by 90 degrees through the driven rod 391, so that the high-strength permanent magnet 393 is in a horizontal state. Rotate the circular torsion handle 351 in the reverse direction by 45°. The high-strength permanent magnet 393 is in a vertical state. The two magnet rods 343 and the corresponding driven gears 392 lose magnetism. The elliptical plate + transmission rod mechanism realizes the conversion of a 270° rotation motion into a linear motion (the motion conversion efficiency is 92%). The push rod stroke is optimized. An effective stroke of 12 mm can complete the locking (the traditional slide rail requires ≥25 mm).

[0028] As Figure 7 、 Figure 9 As shown, in this embodiment, the electrical appliance fixed skeleton mechanism 4 includes two support pieces 41. Two L-shaped mounting strips 42 are fixedly installed on the outer sides of the two support pieces 41. Two cooperation blocks 45 are fixedly installed on the inner sides of the two support pieces 41. The two cooperation blocks 45 cooperate with the two cooperation notches 38. Two insertion blocks 43 are fixedly installed on the inner sides of the two cooperation blocks 45. The two insertion blocks 43 cooperate with the two insertion holes 37. The electrical appliance fixed skeleton mechanism 4 is installed on the outer side of the fixed box 31. Two insertion holes 37 are provided at the top of the fixed box 31. Cooperation notches 38 are provided on the outer sides of the two insertion holes 37; the insertion blocks 43 are inserted into the corresponding insertion holes 37, and the cooperation blocks 45 enter the corresponding cooperation notches 38 to preliminarily position the electrical appliance fixed skeleton mechanism 4.

[0029] As Figure 7 、 Figure 9As shown in the figure, in this embodiment, two locking grooves 44 are provided on both sides of the insertion block 43, and two locking blocks 344 are fixedly installed on the inner side of the pressing plate 34. The two locking blocks 344 cooperate with the corresponding two locking grooves 44 to fix the electrical appliance fixing skeleton mechanism 4 on the fixing box 31.

[0030] Working mode: When in use, install the electrical appliance fixing skeleton mechanism 4 on the skeleton fixing mechanism 3, insert the insertion block 43 into the corresponding insertion hole 37, and the matching block 45 enters the corresponding matching notch 38. Then rotate the circular torsion handle 351 by 45 degrees. The circular torsion handle 351 drives the rotating rod 352 to rotate, the rotating rod 352 drives the elliptical plate 353 to rotate, and the elliptical plate 353 pushes the two push rods 310 away from each other through the two force transmission rods 354 and the two pin blocks 355. The two push rods 310 push the two positioning rods 313 into the two positioning grooves 22 to fix the fixing box 31 between the two vertical rails 2. When the push rod 310 moves, it drives the passive gear 392 to rotate 90° through the rack 312. The passive gear 392 drives the high-strength permanent magnet 393 to rotate 90° through the passive rod 391, so that the high-strength permanent magnet 393 is in a horizontal state. The two ends of the high-strength permanent magnet 393 have the same magnetism as the corresponding two magnet rods 343, attracting the two magnet rods 343 to approach each other. The two magnet rods 343 drive the two pressing plates 34 to approach each other, and the two pressing plates 34 drive the corresponding four locking blocks 344 to insert into the four locking grooves 44, so that the insertion block 43 can be locked in the fixing box 31. When rotating the circular torsion handle 351, the stabilizing rod 356 enters from one semi-circular stabilizing groove 301 into the other semi-circular stabilizing groove 301. Through the elastic force of the spring 358, the stability of the circular torsion handle 351 when it is stationary is improved, and the electrical appliance fixing skeleton mechanism 4 can be fixed quickly. When disassembling, rotate the circular torsion handle 351 reversely by 45°. Through the above force transmission, the two push rods 310 approach each other. The push rod 310 drives the positioning rod 313 to leave the positioning groove 22, releasing the fixation between the fixing box 31 and the two vertical rails 2, and the use height of the skeleton fixing mechanism 3 between the two vertical rails 2 can be adjusted. The high-strength permanent magnet 393 is in a vertical state, and the two magnet rods 343 lose the attraction to the corresponding high-strength permanent magnet 393. Through the reset pulling force of the plastic tension spring 341, the two pressing plates 34 on the outer side of the same high-strength permanent magnet 393 move away from each other, and the locking block 344 leaves the corresponding locking groove 44, releasing the fixation of the insertion block 43. At the same time, pull the electrical appliance fixing skeleton mechanism 4 upward, and the two insertion blocks 43 leave the corresponding two insertion holes 37, and the skeleton fixing mechanism 3 and the electrical appliance fixing skeleton mechanism 4 can be quickly disassembled. Since the tops of the two slide rail grooves 21 opened at the tops of the two vertical rails 2 are open, the two slide rail blocks 36 on the outside of the fixed box 31 slide out from the tops of the two slide rail grooves 21, and the skeleton fixing mechanism 3 can be removed from between the two vertical rails 2. Similarly, the number of uses of the skeleton fixing mechanism 3 can be increased.

[0031] Specifically, the magnetic retention rate > 98% (1000-hour aging test) under high temperature (85°C) environment, and the displacement < 0.15 mm (IEC 60068-2-6 standard) under vibration test (10 - 2000 Hz, 3 Grms). Embodiment 2

[0032] As Figures 2 - 11 shown, this embodiment is further optimized on the basis of Embodiment 1. The same parts as the foregoing technical solutions will not be described herein again. As Figure 2 、 Figure 11 shown, further to better implement the present invention, the following setting method is particularly adopted: In this embodiment, the insertion block 43 and the insertion hole 37 adopt a taper fit (taper 1:50), and the insertion guiding angle is 15°, achieving a blind insertion success rate > 99%.

[0033] In this embodiment, the four locking blocks 344 are symmetrically distributed (spacing tolerance ±0.05 mm) to ensure multi-point uniform load.

[0034] In this embodiment, the plastic tension spring 341 adopts PPS + 30% GF (tensile strength ≥ 180 MPa), and the creep amount < 0.1% under the working conditions of -40°C to 120°C.

[0035] In this embodiment, the surface of the magnet rod is plated with a nickel-copper composite layer (thickness 50 μm), and the hysteresis loss is reduced to < 3%.

[0036] In this embodiment, the distance between the skeleton mechanism and the cabinet wall ≥ 8 mm, forming a vertical air duct (the air change rate increases by 30% when the wind speed is 0.8 m / s).

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing skeleton for electrical cabinet components that can be quickly disassembled and assembled, characterized in that: Including: A power cabinet (1), on the outer side of the power cabinet (1), a cabinet door (12) is rotatably installed through a hinge, and two magnet bars (14) are arranged on the inner side of the cabinet door (12), and both of the two magnet bars (14) are attracted to the side of the power cabinet (1); Two vertical rails (2), both fixedly installed on the inner walls on both sides of the power cabinet (1), slide rail grooves (21) are opened on the inner sides of the two vertical rails (2), the tops of the two slide rail grooves (21) are both open, and a plurality of positioning grooves (22) are opened on the side walls of the slide rail grooves (21); Three skeleton fixing mechanisms (3), slidably installed between the two vertical rails (2); Three electrical component fixing skeleton mechanisms (4), installed on the three skeleton fixing mechanisms (3).

2. The fixed skeleton for power cabinet components that can be quickly disassembled and assembled according to claim 1, wherein: A plurality of heat dissipation holes (11) are opened on both sides of the power cabinet (1), and a transparent plate (13) is arranged on the cabinet door (12).

3. The fixed skeleton for power cabinet components that can be quickly disassembled and assembled according to claim 1, wherein: The skeleton fixing mechanism (3) includes a fixed box (31), a manual unit (35), and two permanent magnet units (39). A sealing plate (32) is fixedly installed on the rear side of the fixed box (31), two transverse sliding rods (33) are fixedly installed in the fixed box (31), four pressing plates (34) are slidably installed on the outer sides of the two transverse sliding rods (33), plastic tension springs (341) are fixedly installed on the outer sides of the four pressing plates (34), force receiving blocks (342) are fixedly installed on the outer sides of the four plastic tension springs (341), and the four force receiving blocks (342) are all fixedly installed on the bottom inner wall of the fixed box (31).

4. The fixed skeleton for power cabinet components that can be quickly disassembled and assembled according to claim 3, wherein: Slide rail blocks (36) are fixedly installed on both sides of the fixed box (31), circular holes (361) are opened on both of the two slide rail blocks (36), positioning rods (313) are slidably installed in the two circular holes (361), the circular holes (361) are slidably connected to the inner walls of the corresponding slide rail grooves (21), the positioning rods (313) are adapted to the corresponding positioning grooves (22), push rods (310) are fixedly installed on the inner sides of the two circular holes (361), push rod sliding holes (345) are opened on all of the four pressing plates (34), and the two push rods (310) are slidably connected to the inner walls of the corresponding two push rod sliding holes (345).

5. The fixed skeleton for power cabinet components that can be quickly disassembled and assembled according to claim 3, wherein: The permanent magnet unit (39) includes a passive rod (391) which is rotatably mounted on the inner wall of the rear side of the fixed box (31) through a bearing. A high-strength permanent magnet (393) is fixedly installed at the outer end of the passive rod (391). A passive gear (392) is fixedly installed on the outer side of the passive rod (391). A bottom opening groove (311) is formed at the bottom of the push rod (310). A rack (312) is fixedly installed on the top inner wall of the bottom opening groove (311). The rack (312) meshes with the passive gear (392). The high-strength permanent magnet (393) is located between two corresponding pressing plates (34). Magnet rods (343) are fixedly installed on the inner sides of the two pressing plates (34). The inner sides of the two magnet rods (343) have opposite magnetic polarities. The two ends of the high-strength permanent magnet (393) have opposite magnetic polarities. The two ends of the high-strength permanent magnet (393) are adapted to the two magnet rods (343).

6. The fixed skeleton for electrical cabinet components that can be quickly disassembled and assembled according to claim 3, wherein: The manual unit (35) includes a rotating rod (352). A circular torsion handle (351) is fixedly installed at the outer end of the rotating rod (352). The rotating rod (352) is rotatably mounted at the central position of the fixed box (31) through a bearing. An elliptical plate (353) is installed at the inner end of the rotating rod (352). Two transmission rods (354) are rotatably installed at both ends of the elliptical plate (353) through pin shafts. The outer ends of the two transmission rods (354) are rotatably installed with pin shaft blocks (355) through pin shafts. The two pin shaft blocks (355) are fixedly installed at the top ends of the two push rods (310).

7. The fixed skeleton for electrical cabinet components that can be quickly disassembled and assembled according to claim 6, wherein: Two semi-circular stabilizing grooves (301) are formed on the outer side of the fixed box (31). The included angle between the two semi-circular stabilizing grooves (301) with the rotating rod (352) as the axis is 45°. A spring groove (357) is formed on the inner side of the circular torsion handle (351). A stabilizing rod (356) is slidably installed in the spring groove (357). A spring (358) is installed between the stabilizing rod (356) and the spring groove (357). The stabilizing rod (356) cooperates with the semi-circular stabilizing groove (301) to improve the stability of the circular torsion handle (351) at rest.

8. The fixed skeleton for electrical cabinet components that can be quickly disassembled and assembled according to claim 3, wherein: Two jacks (37) are formed on the top of the fixed box (31). Matching notches (38) are formed on the outer sides of the two jacks (37).

9. The fixed skeleton for electrical cabinet components that can be quickly disassembled and assembled according to claim 3, wherein: The electrical appliance fixed skeleton mechanism (4) includes two support pieces (41). On the outer sides of the two support pieces (41), two L-shaped mounting strips (42) are fixedly installed. On the inner sides of the two support pieces (41), mating blocks (45) are fixedly installed. The two mating blocks (45) are matched with the two mating notches (38). On the inner sides of the two mating blocks (45), plug-in blocks (43) are fixedly installed. The two plug-in blocks (43) are matched with the two jacks (37), and the electrical appliance fixed skeleton mechanism (4) is installed on the outer side of the fixed box (31).

10. A fixed skeleton for power cabinet components that can be quickly disassembled and assembled according to claim 9, characterized in that: On both sides of the plug-in block (43), two locking grooves (44) are formed. On the inner side of the pressing plate (34), two locking blocks (344) are fixedly installed. The two locking blocks (344) are matched with the corresponding two locking grooves (44).

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