Low-voltage draw-out type switch cabinet convenient to overhaul

Abstract

The invention relates to the technical field of low-voltage draw-out type switch cabinets, and particularly discloses a low-voltage draw-out type switch cabinet convenient to overhaul, which comprises a cabinet body, two switch structures are mounted on the cabinet body, and the switch structures are symmetrically distributed on two sides by taking the center line of the cabinet body as the center. The switch structure comprises an access hole, a side plate, a limiting block, a rubber sleeve and a limiting groove; the access hole is formed in the cabinet body, the side plate is arranged in the access hole, and limiting blocks are installed on the two sides of the side plate respectively. When electrical elements in the cabinet body need to be overhauled, the side plates can be moved upwards, move upwards along the access holes, drive the rubber sleeves on the limiting blocks to move upwards along the limiting grooves and drive the top cover to move upwards through the connecting blocks at the same time, so that the access holes are opened, and the electrical elements in the cabinet body can be overhauled manually from the access holes in the two sides of the cabinet body conveniently; after maintenance is completed, the side plate closes the maintenance opening, and the top cover seals the top of the cabinet body.

Description

Technical Field

[0001] The invention relates to the technical field of low-voltage withdrawable switch cabinets, in particular to a low-voltage withdrawable switch cabinet which is easy to maintain. Background Art

[0002] Low-voltage switchgear is an electric cabinet used for shunting and switching low-voltage power supplies. It is widely used in power distribution occasions and has good use effects. Low-voltage switchgear belongs to the products listed in the "Catalog" of 3C Certification Compulsory Certification Products. It is suitable for power plants, petroleum, chemical, metallurgy, textile, high-rise buildings and other industries for power transmission, distribution and power conversion. Low-voltage switchgear can be divided into GCS low-voltage switchgear, GCK withdrawable switchgear, GGD low-voltage fixed switchgear, assembled low-voltage switchgear, etc. However, the current low-voltage withdrawable switchgear has certain disadvantages. The cabinet body is assembled by plate welding or bolt connection, which is not easy to open. The only part of the cabinet body that can be opened is the cabinet door, and the cabinet body has a certain depth, which makes it more troublesome to inspect the internal electrical components. Summary of the invention

[0003] The purpose of the present invention is to provide a low-voltage withdrawable switch cabinet that is easy to maintain, which solves certain drawbacks of the current low-voltage withdrawable switch cabinet. The cabinet body is assembled by plate welding or bolt connection, which is not convenient to open. The only part of the cabinet body that can be opened is the cabinet door, and the cabinet body has a certain depth, which makes it troublesome to maintain the internal electrical components.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-voltage withdrawable switch cabinet that is easy to maintain, comprising a cabinet body, a switch structure installed on the cabinet body, two switch structures, and the switch structures are symmetrically distributed on both sides with the center line of the cabinet body as the center, and the switch structure comprises an inspection port, a side panel, a limit block, a rubber sleeve and a limit groove; the inspection port is opened on the cabinet body, the side panel is placed in the inspection port, the limit blocks are respectively installed on both sides of the side panel, the rubber sleeves are respectively installed outside the limit blocks, and the limit grooves are respectively opened on both sides of the inspection port, and the rubber sleeves are inserted into the limit grooves; the side panel is installed with a connecting block, and the connecting block is installed with a top cover.

[0005] Preferably, a driving structure is installed in the cabinet, and the driving structure is arranged corresponding to the side panel, and the driving structure includes a servo motor, a threaded rod, an ear plate and a threaded hole; the servo motor is installed in the cabinet, the threaded rod is installed on the output shaft of the servo motor, the ear plate is installed on the side panel, the threaded hole is opened on the ear plate, and the threaded rod is sleeved in the threaded hole.

[0006] Preferably, a combing structure is installed on the cabinet, and the combing structure includes a wire hole, a rubber plate, a through hole and a rubber plug; the wire hole is opened on the cabinet, the rubber plate is plugged into the wire hole, a plurality of through holes are opened on the rubber plate, the through holes are respectively plugged with rubber plugs, and the rubber plugs are respectively provided with hexagonal holes.

[0007] Preferably, the rubber sleeve is mounted on the limit block via a clamping structure, the clamping structure is arranged corresponding to the rubber sleeve, and the clamping structure includes a clamping block and a clamping groove; The clamping block is installed in the rubber sleeve, the clamping slot is arranged in the limiting block, the rubber sleeve is sleeved outside the limiting block, and the clamping block is clamped in the clamping slot.

[0008] Preferably, an elastic member is installed in the card block, and the elastic member is arranged corresponding to the card block.

[0009] Preferably, a sealing frame is installed on the top cover, the sealing frame contacts the cabinet body, and the sealing frame contacts the side panel.

[0010] Preferably, storage plates are installed in the cabinet, the number of the storage plates is not less than four, the storage plates are equidistantly distributed in the cabinet, and components are respectively installed on the storage plates.

[0011] Preferably, a cabinet door is hinged on the cabinet body, a handle is installed on the cabinet door, and a magnetic stripe frame is installed at the contact position between the cabinet door and the cabinet body.

[0012] Preferably, the side panels are provided with heat dissipation holes, and the heat dissipation holes are arranged corresponding to the side panels. A rubber pad is installed at the bottom end of the cabinet, and the rubber pad is provided with anti-slip grooves. The number of the anti-slip grooves is not less than seven, and the anti-slip grooves are equidistantly distributed on the rubber pad.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the low-voltage withdrawable switch cabinet that is easy to maintain has the following advantages compared with the traditional technology: 1. When it is necessary to inspect the electrical components in the cabinet, the side panel can be moved up along the inspection port. At the same time, the side panel drives the rubber sleeve on the limit block to move upward along the limit groove. At the same time, the side panel drives the top cover to move upward through the connecting block, so that the inspection port is opened, which is convenient for manual inspection of the electrical components inside the cabinet from the inspection ports on both sides of the cabinet. When the inspection is completed, the side panel closes the inspection port, the top cover seals the cabinet, and the rubber sleeve seals the gap between the limit block and the limit groove.

[0014] 2. When inspecting components in the cabinet, start the external remote control, turn on the remote control switch, and the power supply inside the cabinet supplies power to the servo motor. The output shaft of the servo motor drives the threaded rod to rotate forward, and the threaded rod rotates forward in the threaded hole on the ear plate, automatically driving the side panel to move upward to open the inspection port, reducing manual operation.

[0015] 3. Before threading the connecting wires of the components, insert the rubber sheet into the wire hole, remove the rubber plug from the through hole through the hexagonal hole, and pass the external wires of the components in the cabinet through the through hole in an orderly manner to facilitate the later line arrangement and maintenance and avoid making the lines messy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the cabinet, storage plate and components of the present invention.

[0018] Figure 3 It is a schematic diagram of the structure of the rubber plate, through hole and rubber plug of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the connecting block, top cover and sealing frame of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the side plate, the limit block and the rubber sleeve of the present invention.

[0021] Figure 6 It is a schematic structural diagram of the servo motor, threaded rod and ear plate of the present invention.

[0022] Figure 7 It is a schematic structural diagram of the clamping block, the clamping slot and the elastic member of the present invention.

[0023] Figure 8 It is a schematic diagram of the structure of the cabinet door and the magnetic stripe frame of the present invention.

[0024] In the figure: 1. cabinet body; 2. cabinet door; 3. handle; 4. switch structure; 401. inspection port; 402. side panel; 403. limit block; 404. rubber sleeve; 405. limit slot; 5. heat dissipation hole; 6. connection block; 7. top cover; 8. sealing frame; 9. storage plate; 10. components; 11. combing structure; 12. wire hole; 13. rubber sheet; 14. through hole; 15. rubber plug; 16. hexagonal hole; 17. driving structure; 18. servo motor; 19. threaded rod; 20. ear plate; 21. threaded hole; 22. magnetic stripe frame; 23. clamping structure; 24. clamping block; 25. clamping slot; 26. elastic member; 27. rubber pad; 28. anti-slip groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0027] The current low-voltage withdrawable switch cabinet has certain disadvantages. The cabinet body is assembled by plate welding or bolt connection, which is not easy to open. The only part of the cabinet body that can be opened is the cabinet door. In addition, the cabinet body has a certain depth, and it is troublesome to inspect the internal electrical components.

[0028] In view of this, the present invention provides a low-voltage withdrawable switch cabinet which is easy to maintain. When it is necessary to maintain the electrical components in the cabinet, the side panels can be moved upward, and the side panels move upward along the maintenance opening. At the same time, the side panels drive the rubber sleeves on the limit blocks to move upward along the limit grooves. At the same time, the side panels drive the top cover to move upward through the connecting blocks, so that the maintenance opening is opened, which is convenient for manual maintenance of the electrical components inside the cabinet from the maintenance openings on both sides of the cabinet. When the maintenance is completed, the side panels close the maintenance openings, the top cover seals the cabinet, and the rubber sleeves seal the gaps between the limit blocks and the limit grooves.

[0029] See also Figure 1-8 The present invention provides a technical solution: a low-voltage withdrawable switch cabinet that is easy to maintain, including a cabinet body 1, a switch structure 4 is installed on the cabinet body 1, the number of the switch structures 4 is two, the switch structures 4 are symmetrically distributed on both sides with the midline of the cabinet body 1 as the center, and the switch structure 4 includes an inspection port 401, a side panel 402, a limit block 403, a rubber sleeve 404 and a limit groove 405; the inspection port 401 is opened on the cabinet body 1, the side panel 402 is placed in the inspection port 401, the limit blocks 403 are respectively installed on both sides of the side panel 402, the rubber sleeves 404 are respectively installed outside the limit blocks 403, and the limit grooves 405 are respectively opened on both sides of the inspection port 401, and the rubber sleeves 404 are inserted into the limit grooves 405.

[0030] A connecting block 6 is installed on the side panel 402, and a top cover 7 is installed on the connecting block 6. When the electrical components in the cabinet 1 need to be inspected, the side panel 402 can be moved upward, and the side panel 402 moves upward along the inspection port 401. At the same time, the side panel 402 drives the rubber sleeve 404 on the limit block 403 to move upward along the limit groove 405. At the same time, the side panel 402 drives the top cover 7 to move upward through the connecting block 6, so that the inspection port 401 is opened, so that it is convenient for manual inspection of the electrical components inside the cabinet 1 from the inspection ports 401 on both sides of the cabinet 1. When the inspection is completed, the side panel 402 closes the inspection port 401, and the top cover 7 caps the cabinet 1, so that the rubber sleeve 404 seals the gap between the limit block 403 and the limit groove 405.

[0031] A driving structure 17 is installed in the cabinet 1 . The driving structure 17 is arranged corresponding to the side plate 402 . The driving structure 17 includes a servo motor 18 , a threaded rod 19 , an ear plate 20 and a threaded hole 21 .

[0032] The servo motor 18 is installed in the cabinet 1. The servo motor 18 is electrically connected to the remote control switch installed in the cabinet 1 through the power supply of the cabinet 1 and is controlled by an external remote control. The threaded rod 19 is installed on the output shaft of the servo motor 18. The output shaft of the servo motor 18 drives the threaded rod 19 to work synchronously and in the same direction, and the thread directions of the threaded rod 19 are consistent. The ear plate 20 is installed on the side plate 402, and the threaded hole 21 is opened on the ear plate 20. The threaded rod 19 is sleeved in the threaded hole 21. When inspecting the electrical components in the cabinet 1, start the external remote control, turn on the remote control switch, and the internal power supply of the cabinet 1 supplies power to the servo motor 18. The output shaft of the servo motor 18 drives the threaded rod 19 to rotate forward. The threaded rod 19 rotates forward in the threaded hole 21 on the ear plate 20, driving the side plate 402 to move upward.

[0033] A combing structure 11 is installed on the cabinet 1 , and the combing structure 11 includes a wire hole 12 , a rubber plate 13 , a through hole 14 and a rubber plug 15 .

[0034] A wire hole 12 is provided on the cabinet 1, and a rubber sheet 13 is inserted into the wire hole 12. No less than sixteen through holes 14 are provided on the rubber sheet 13, and rubber plugs 15 are respectively inserted into the through holes 14. The rubber plugs 15 are respectively provided with hexagonal holes 16, and the hexagonal holes 16 are opened toward the outside of the cabinet 1. Before threading, the rubber sheet 13 is inserted into the wire hole 12, and the rubber plugs 15 are taken out of the through holes 14 through the hexagonal holes 16, and the external wires of the electrical equipment in the cabinet 1 are passed through the through holes 14 in an orderly manner, so as to facilitate the later arrangement and maintenance of the lines and avoid making the lines disorderly.

[0035] The rubber sleeve 404 is installed on the limiting block 403 through the clamping structure 23 . The clamping structure 23 is arranged corresponding to the rubber sleeve 404 . The clamping structure 23 includes a clamping block 24 and a clamping slot 25 .

[0036] The block 24 is installed in the rubber sleeve 404, the slot 25 is provided in the limit block 403, the rubber sleeve 404 is sleeved outside the limit block 403, the block 24 is clamped in the slot 25, an elastic member 26 is installed in the block 24, both the block 24 and the elastic member 26 are supported by steel sheets, the elastic member 26 and the block 24 are arranged correspondingly, the rubber sleeve 404 is sleeved outside the limit block 403, the block 24 is clamped into the slot 25, and the elastic member 26 increases the elasticity of the block 24, so that the block 24 is stably clamped into the slot 25, and the rubber sleeve 404 is stably installed on the limit block 403.

[0037] A sealing frame 8 is installed on the top cover 7. The sealing frame 8 is made of fluororubber. The sealing frame 8 contacts the cabinet body 1 and the side panel 402. When the top cover 7 is covered on the cabinet body 1, the sealing frame 8 is attached to the side panel 402 and the cabinet body 1 at the same time, sealing the gap between the top cover 7 and the cabinet body 1.

[0038] A storage plate 9 is installed in the cabinet 1. The number of the storage plates 9 is not less than four. The storage plates 9 are evenly distributed in the cabinet 1. Components 10 are respectively installed on the storage plates 9. The electrical components are components 10, which include disconnectors, circuit breakers, fuses, contactors and thermal relays, etc., and the connecting wires of the components 10 pass through the through holes 14 in an orderly manner.

[0039] A cabinet door 2 is hinged on the cabinet body 1, and the cabinet door 2 is rotatably installed on the cabinet body 1 through hinges. A handle 3 is installed on the cabinet door 2, and a magnetic stripe frame 22 is installed at the contact position between the cabinet door 2 and the cabinet body 1. When the handle 3 on the cabinet door 2 is dragged, the cabinet body 1 opens, and vice versa, the cabinet body 1 is closed. At this time, the magnetic stripe frame 22 is adsorbed on the outer side of the cabinet body 1, playing a role of fixing and sealing.

[0040] The side panel 402 is provided with heat dissipation holes 5, which are arranged corresponding to the side panel 402. The heat dissipation holes 5 on the side panel 402 allow the heat generated by the components 10 in the cabinet 1 to be dissipated. A rubber pad 27 is installed at the bottom end of the cabinet 1. The rubber pad 27 is provided with anti-skid grooves 28. The number of the anti-skid grooves 28 is not less than seven, and the anti-skid grooves 28 are equidistantly distributed on the rubber pad 27. The rubber pad 27 makes the bottom of the cabinet 1 moisture-proof, and the anti-skid grooves 28 increase the friction between the rubber pad 27 and the ground.

[0041] When using the low-voltage withdrawable switch cabinet that is easy to maintain, first, the rubber pad 27 makes the bottom of the cabinet body 1 moisture-proof, and the anti-skid groove 28 increases the friction between the rubber pad 27 and the ground, and the rubber sleeve 404 is sleeved outside the limit block 403, so that the block 24 is inserted into the slot 25, and the elastic member 26 increases the elasticity of the block 24, so that the block 24 is stably inserted into the slot 25, and the rubber sleeve 404 is stably installed on the limit block 403, so that the side plate 402 drives the rubber sleeve 404 on the limit block 403 to be inserted into the limit slot 405, and the ear The plate 20 is welded to the side plate 402, and the components 10 are installed on the storage plate 9. Before threading the connecting wires of the components 10, the rubber plate 13 is inserted into the wire hole 12, and the rubber plug 15 is taken out from the through hole 14 through the hexagonal hole 16. The external wires of the components 10 in the cabinet 1 pass through the through hole 14 in an orderly manner, which is convenient for the later line arrangement and maintenance, and avoids causing the lines to be disorderly. The heat dissipation holes 5 on the side plate 402 dissipate the heat generated by the components 10 in the cabinet 1. When it is necessary to repair the components 10 in the cabinet 1, the external wires can be started. The remote control switch is turned on, the power supply inside the cabinet 1 supplies power to the servo motor 18, the output shaft of the servo motor 18 drives the threaded rod 19 to rotate forward, the threaded rod 19 rotates forward in the threaded hole 21 on the ear plate 20, drives the side plate 402 to move upward, the side plate 402 moves upward along the inspection opening 401, and at the same time, the side plate 402 drives the rubber sleeve 404 on the limit block 403 to move upward along the limit groove 405, and at the same time, the side plate 402 drives the top cover 7 to move upward through the connecting block 6, so that the inspection opening 401 is opened, which is convenient for manual access from the cabinet. The inspection openings 401 on both sides of the cabinet 1 are used for inspection of the components 10 inside the cabinet 1. After the inspection is completed, the side panels 402 close the inspection openings 401, and the top cover 7 caps the cabinet 1. At this time, the sealing frame 8 is attached to the side panels 402 and the cabinet 1 at the same time, sealing the gap between the top cover 7 and the cabinet 1, and the rubber sleeve 404 seals the gap between the limit block 403 and the limit groove 405. When the handle 3 on the cabinet door 2 is dragged, the cabinet 1 is opened, otherwise the cabinet 1 is closed. At this time, the magnetic stripe frame 22 is adsorbed on the outside of the cabinet 1 to play a role of fixing and sealing.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage withdrawable switch cabinet that is easy to maintain, comprising a cabinet body (1), characterized in that: The cabinet (1) is provided with a switch structure (4), the number of the switch structures (4) being two, the switch structures (4) being symmetrically distributed on both sides with the midline of the cabinet (1) as the center, the switch structure (4) comprising an inspection port (401), a side plate (402), a limit block (403), a rubber sleeve (404) and a limit groove (405); The inspection opening (401) is provided on the cabinet body (1), the side panel (402) is placed inside the inspection opening (401), limiting blocks (403) are respectively installed on both sides of the side panel (402), rubber sleeves (404) are respectively installed outside the limiting blocks (403), limiting grooves (405) are respectively provided on both sides of the inspection opening (401), and the rubber sleeves (404) are inserted into the limiting grooves (405); A connecting block (6) is mounted on the side plate (402), and a top cover (7) is mounted on the connecting block (6).

2. A low-voltage withdrawable switch cabinet that is easy to maintain according to claim 1, characterized in that: A drive structure (17) is installed in the cabinet (1), the drive structure (17) is arranged corresponding to the side plate (402), and the drive structure (17) comprises a servo motor (18), a threaded rod (19), an ear plate (20), and a threaded hole (21); The servo motor (18) is installed in the cabinet (1), the threaded rod (19) is installed on the output shaft of the servo motor (18), the ear plate (20) is installed on the side plate (402), the threaded hole (21) is opened on the ear plate (20), and the threaded rod (19) is sleeved in the threaded hole (21).

3. A low-voltage withdrawable switch cabinet that is easy to maintain according to claim 2, characterized in that: The cabinet (1) is provided with a combing structure (11), wherein the combing structure (11) comprises a wire hole (12), a rubber plate (13), a through hole (14) and a rubber plug (15); The wire hole (12) is formed on the cabinet body (1), the rubber plate (13) is inserted into the wire hole (12), a plurality of through holes (14) are formed on the rubber plate (13), rubber plugs (15) are respectively inserted into the through holes (14), and the rubber plugs (15) are respectively provided with hexagonal holes (16).

4. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 3 is characterized in that: The rubber sleeve (404) is mounted on the limit block (403) via a clamping structure (23); the clamping structure (23) is arranged corresponding to the rubber sleeve (404); the clamping structure (23) comprises a clamping block (24) and a clamping slot (25); The clamping block (24) is installed in the rubber sleeve (404), the clamping slot (25) is opened in the limiting block (403), the rubber sleeve (404) is sleeved outside the limiting block (403), and the clamping block (24) is clamped in the clamping slot (25).

5. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 4 is characterized in that: An elastic member (26) is installed in the clamping block (24), and the elastic member (26) is arranged corresponding to the clamping block (24).

6. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 5 is characterized in that: A sealing frame (8) is installed on the top cover (7), the sealing frame (8) contacts the cabinet body (1), and the sealing frame (8) contacts the side panel (402).

7. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 6 is characterized in that: The cabinet (1) is provided with storage plates (9), the number of the storage plates (9) is not less than four, the storage plates (9) are equidistantly distributed in the cabinet (1), and components (10) are respectively installed on the storage plates (9).

8. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 7 is characterized in that: A cabinet door (2) is hingedly connected to the cabinet body (1), a handle (3) is installed on the cabinet door (2), and a magnetic stripe frame (22) is installed at the contact position between the cabinet door (2) and the cabinet body (1).

9. The low-voltage withdrawable switch cabinet that is easy to maintain according to claim 8, characterized in that: The side panel (402) is provided with a heat dissipation hole (5), the heat dissipation hole (5) being arranged corresponding to the side panel (402), a rubber pad (27) being installed at the bottom end of the cabinet body (1), the rubber pad (27) being provided with an anti-skid groove (28), the number of the anti-skid grooves (28) being no less than seven, and the anti-skid grooves (28) being evenly spaced and distributed on the rubber pad (27).

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