Vertical channel isolation device of low-voltage drawer cabinet

Abstract

The invention provides a vertical channel isolation device for a low-voltage drawer cabinet, and relates to the technical field of isolation devices, and the vertical channel isolation device is structurally composed of two parts: a drawer body and an interlayer partition plate are installed on a cabinet assembly. Wherein the curtain picking push plates are made of ABS flame-retardant materials and are integrally formed through a mold, and the two groups of curtain picking push plates are symmetrically installed on the left rear portion of the drawer body. Wherein the vertical channel lifting curtain is made of an ABS flame-retardant material and is integrally formed through a mold, and arc guides are arranged on the left side and the right side of the vertical channel lifting curtain. According to the drawer cabinet, the problem that in the prior art, after a drawer is pulled out, an electrified copper bar is not subjected to insulation protection during overhauling is solved, the protection grade is IP20 after a cabinet door is opened in the overhauling state, the electrified copper bar is completely shielded by an insulating part, the safety of equipment during overhauling under the electrified condition is guaranteed, and then the use reliability and safety of the drawer cabinet are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of isolation devices, and in particular to a vertical channel isolation device for a low-voltage drawer cabinet. Background Art

[0002] Due to its high reliability, safe and simple operation, convenient maintenance, compact space and replaceability, the low-voltage drawer-type switchgear is widely used as a centralized control power distribution center in various industries with high requirements for power supply reliability. The vertical copper busbar in the vertical channel is the main conductor of the drawer cabinet, ensuring its safety and stability.

[0003] The inventor found in daily work that the isolation device still has at least the following problems: When using the isolation device, the vertical copper busbar in the vertical channel is the main conductor of the drawer cabinet, and ensuring its safety and stability is extremely important. After the drawer is taken out, the card slot into which the vertical busbar contact is inserted is arranged inside the isolation device body, and the copper busbar is arranged inside, avoiding extremely high safety hazards during maintenance inside the cabinet under live conditions, thereby improving the reliability and safety of the drawer cabinet. However, in the actual use process, when placing the isolation device, because the height of the isolation device is fixed, it cannot be well inserted into the appropriate cabinet, which is likely to cause the isolation device to fall. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a vertical channel isolation device for a low-voltage drawer cabinet.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A vertical channel isolation device for a low-voltage drawer cabinet includes an isolation device body, a curtain pushing plate, a layer spacer, a drawer body and a vertical channel curtain. Two groups of the curtain pushing plates are symmetrically installed at the left rear of the drawer body, and the curtain pushing plates are in contact with the arc surfaces on both sides of the vertical channel curtain, gradually pushing the vertical channel curtain upward. The vertical channel curtain is integrally formed by die-casting, and arc guides are provided on both left and right sides, and a curtain chute is provided at the rear thereof. The vertical channel curtain is slidably assembled with the vertical busbar by means of the curtain chute on the surface. The curtain partition is integrally formed by die-casting and is used to partition the vertical busbar and the functional unit compartment, and its supporting folded edge is used to limit the falling position of the vertical channel curtain. The guide rails are riveted in a three-section manner and are symmetrically installed on the left and right of the layer spacer. The layer spacer and the curtain partition are detachably assembled, and the spacing is the same as the width of the drawer body. An incoming line contact is installed at the left rear of the drawer body, and the incoming line contact is fixed on the contact fixing plate by self-tapping screws. The spacing between the three incoming line contacts is the same as the spacing of the vertical busbar. An outgoing line contact is installed at the right rear of the drawer body, and the outgoing line contact is fixed on the contact fixing plate by self-tapping screws. The spacing between the three outgoing line contacts is the same as the spacing of the outgoing copper busbar.

[0006] The effects achieved by the above components are as follows: When the cabinet door is opened in the maintenance state, the protection level reaches IP20, and the live vertical copper busbars are completely blocked by the insulating parts, ensuring the safety of the equipment during maintenance under live conditions, thereby improving the reliability and safety of the use of the drawer cabinet.

[0007] Preferably, side plates are provided on both sides of the isolation device main body, drawer bodies are evenly arranged inside the isolation device main body, a top cover is arranged on the top of the isolation device main body, an adjusting device is arranged on the bottom of the isolation device main body, a limiting device is arranged on one side of the side plate, the adjusting device includes a support plate, the support plate is arranged on the bottom of the isolation device main body, a moving block is arranged on the top of the support plate, a first damping rod is fixedly connected to the bottom of the moving block, the bottom of the first damping rod and the top of the support plate are fixedly connected, a first spring is sleeved on the surface of the first damping rod, the bottom of the first spring and the top of the support plate are fixedly connected, one end of the first spring close to the first damping rod is fixedly connected to the bottom of the moving block, a rotating rod is rotatably inserted through the middle of the two moving blocks, and a cam is fixedly connected to the surface of the rotating rod, and the cam is arranged at the bottom of the isolation device main body.

[0008] The effects achieved by the above components are as follows: When using the adjusting device, manually control the rotating rod to drive the cam to rotate, so that the cam can squeeze the isolation device main body upward from the bottom of the isolation device main body, thereby adjusting the height of the isolation device main body, and facilitating the isolation device main body to be supported at a suitable position.

[0009] Preferably, a circular plate is fixedly connected to the end of the rotating rod away from the moving block, a rubber ring is fixedly connected to the side of the moving block close to the circular plate, a bolt is threadedly inserted through the circular plate, and the end of the bolt away from the circular plate is arranged on the side of the rubber ring away from the moving block.

[0010] The effects achieved by the above components are as follows: Manually drive the rotating rod to rotate through the circular plate. When the rotating rod rotates to a suitable position, manually control the bolt to rotate, so that the bolt squeezes on one side of the rubber ring, causing the rubber to be squeezed and deformed, so that the rotating rod can be well fixed in the middle of the two moving blocks.

[0011] Preferably, rectangular frames are evenly formed at the bottom of the isolation device body. A rectangular plate is slidably connected to the inner wall of the rectangular frame. One end of the rectangular plate away from the rectangular frame is fixedly connected to the top of the support plate. A second damping rod is fixedly connected to the top of the rectangular plate. One end of the second damping rod away from the rectangular plate is fixedly connected to one side of the inner wall of the rectangular frame. A second spring is sleeved on the surface of the second damping rod. One end of the second spring is fixedly connected to the top of the rectangular plate. One end of the second spring close to the second damping rod is fixedly connected to the top of the inner wall of the rectangular frame. A limiting groove is formed in the inner wall of the rectangular plate. A limiting rod is slidably connected to the inner wall of the limiting groove. One end of the limiting rod away from the limiting groove is fixedly connected to the top of the inner wall of the rectangular frame.

[0012] The effects achieved by the above components are as follows: The rectangular plate is pulled towards the inner wall of the rectangular frame by the second spring, so as to well limit the rectangular plate inside the rectangular frame, and then the support plate is well arranged at the bottom of the isolation device body. The limiting rod slides on the inner wall of the limiting groove, which can, to a certain extent, prevent the rectangular plate from completely sliding out of the inside of the rectangular frame.

[0013] Preferably, a limiting sleeve is slidably sleeved on the bottom surface of the isolation device body. Positioning strips are evenly fixedly connected to the top of the support plate. The limiting sleeve is arranged on the side of the positioning strip away from the support plate. A fixing hole is formed in one side of the positioning strip. A rubber block is arranged on the inner wall of the fixing hole. The rubber block is fixedly connected to the surface of the limiting sleeve.

[0014] The effects achieved by the above components are as follows: Manually sleeve the limiting sleeve on the bottom surface of the isolation device body, then arrange the four positioning strips inside the limiting sleeve, and then squeeze the rubber block into the inside of the fixing hole, so that the limiting sleeve can be well limited on the top of the support plate, which can play a certain protective role.

[0015] Preferably, the limiting device includes a support frame. The bottom of the support frame is fixedly connected to the top of the support plate. A support strip is slidably connected to the inner wall of the support frame. A positioning frame is arranged on one side of the support strip. The positioning frame is slidably sleeved on one side of the isolation device body. Positioning grooves are formed on both sides of the support frame. Rubber strips are arranged on the inner walls of the positioning grooves. The rubber strips are fixedly connected to the side surface of the bottom of the support strip.

[0016] The effects achieved by the above components are as follows: When using the limiting device, manually slide the support strip into the inner wall of the support frame, and then squeeze the rubber strip out of the inside of the support frame through the positioning groove, so that the support strip can be well limited inside the support frame, and the positioning frame can be sleeved on the surface of the side plate, which is convenient for subsequently fixing the side plate on the surface of the isolation device body with screws.

[0017] Preferably, support blocks are evenly and fixedly connected to the top of the clamping frame. One side of each support block is rotatably inserted with a threaded rod. The thread directions on the surface of the threaded rod are opposite from the middle to both sides. A clamping groove is formed in the top of the clamping frame. The inner wall of the clamping groove is slidably connected with extrusion blocks. The two extrusion blocks are evenly sleeved on the surfaces of both ends of the threaded rod.

[0018] The effects achieved by the above components are as follows: Manually control the rotation of the threaded rod. Since the thread directions on the surface of the threaded rod are opposite from the middle to both sides, the two extrusion blocks are well pressed against one side of the side plate, thus facilitating the side plate to be closely attached to the surface of the isolation device body.

[0019] Preferably, a third damping rod is fixedly connected to the side of the support bar close to the clamping frame. The end of the third damping rod away from the support bar is fixedly connected to one side of the clamping frame. A third spring is sleeved on the surface of the third damping rod. One end of the third spring is fixedly connected to one side of the support bar. The end of the third spring close to the third damping rod is fixedly connected to one side of the clamping frame.

[0020] The effects achieved by the above components are as follows: The clamping frame is pressed away from the support bar by the third spring, so that the clamping frame can be well sleeved on the surface of the side plate.

[0021] Preferably, a connecting groove is formed in one side of the support bar. A sliding rod is fixedly connected to the inner wall of the connecting groove. A fourth spring is sleeved on the surface of the sliding rod. One end of the fourth spring is fixedly connected to the top of the moving frame. The end of the fourth spring close to the sliding rod is fixedly connected to the top of the inner wall of the connecting groove. A moving frame is slidably sleeved on the surface of the sliding rod. A rectangular block is fixedly connected to the bottom of the inner wall of the moving frame. A positioning frame is slidably sleeved on the bottom of the rectangular block. The bottom of the positioning frame is fixedly connected to the top of the support plate.

[0022] The effects achieved by the above components are as follows: The moving frame is pressed against the bottom of the inner wall of the connecting groove by the fourth spring, so that the rectangular block is arranged inside the positioning frame, and thus the support bar can be well supported by the moving frame.

[0023] In the present invention, the structure consists of two parts: a drawer body and a layer spacer installed on the cabinet upper assembly. Among them, the curtain pushing plate is made of ABS flame-retardant material and is integrally formed by a mold. Two groups are symmetrically installed at the left rear of the drawer body. Among them, the vertical channel curtain is made of ABS flame-retardant material and is integrally formed by a mold. Arc guides are provided on both its left and right sides. It solves the problem in the prior art that there is no insulation protection for the live copper busbars during the maintenance after the drawer is pulled out, and realizes the protection level of IP20 after the cabinet door is opened in the maintenance state. The live copper busbars are completely blocked by the insulating parts, ensuring the safety of the equipment during the maintenance under live conditions, and thus improving the reliability and safety of the drawer cabinet in use.

[0024] In the present invention, by providing an adjusting device, when using the adjusting device, manually control the rotating rod to drive the cam to rotate, so that the cam can squeeze the main body of the isolation device upward from the bottom of the main body of the isolation device, thereby adjusting the height of the main body of the isolation device, and facilitating the support of the main body of the isolation device at a suitable position. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is a schematic perspective view of a vertical channel isolation device for a low-voltage drawer cabinet proposed by the present invention;

[0026] Figure 2 FIG. is a schematic perspective view of a drawer main body proposed by the present invention;

[0027] Figure 3 FIG. is a schematic perspective view of a layer spacer proposed by the present invention;

[0028] Figure 4 FIG. is a schematic perspective view of an outgoing line contact proposed by the present invention;

[0029] Figure 5 FIG. is a schematic perspective view of a limit sleeve proposed by the present invention;

[0030] Figure 6 FIG. is a schematic perspective view of a moving block proposed by the present invention;

[0031] Figure 7 FIG. is a schematic perspective view of a circular plate proposed by the present invention;

[0032] Figure 8 FIG. is a schematic perspective view of a rectangular plate proposed by the present invention;

[0033] Figure 9 FIG. is a schematic perspective view of a support bar proposed by the present invention;

[0034] Figure 10 FIG. is a schematic perspective view of a clamping frame proposed by the present invention;

[0035] Figure 11 FIG. is a schematic perspective view of a moving rack proposed by the present invention;

[0036] Figure 12 FIG. is a schematic view of a curtain partition proposed by the present invention;

[0037] Figure 13 FIG. is a schematic view of a vertical channel curtain proposed by the present invention;

[0038] Figure 14 FIG. is a schematic view of a vertical busbar proposed by the present invention;

[0039] Figure 15 Proposed by the present invention Figure 13 Partial schematic diagram.

[0040] Legend: 1. Isolation device body; 2. Side plate; 3. Drawer body; 4. Top cover; 5. Adjusting device; 501. Support plate; 502. Limiting sleeve; 503. Clamping strip; 504. Fixing hole; 505. Rubber block; 506. Moving block; 507. Rotating rod; 508. Cam; 509. First damping rod; 510. First spring; 511. Circular plate; 512. Bolt; 513. Rubber ring; 514. Rectangular frame; 515. Rectangular plate; 516. Limiting groove; 517. Limiting rod; 518. Second damping rod; 519. Second spring; 6. Limiting device; 601. Support bar; 602. Clamping frame; 603. Support frame; 604. Positioning groove; 605. Rubber strip; 606. Positioning frame; 607. Third damping rod; 608. Third spring; 609. Support block; 610. Threaded rod; 611. Clamping groove; 612. Extrusion block; 613. Connecting groove; 614. Moving frame; 615. Sliding rod; 616. Fourth spring; 617. Rectangular block; 7. Curtain partition; 8. Layer partition; 9. Vertical channel curtain; 10. Vertical busbar; 11. Outlet copper bar; 12. Inlet contact; 13. Outlet contact; 14. Curtain push plate; 15. Contact fixing plate; 16. Support folding edge. Detailed implementation mode

[0041] Please refer to Figures 1 to 15, the present invention provides a vertical channel isolation device for a low-voltage drawer cabinet. Two sets of curtain-pushing plates 14 are symmetrically installed at the left rear of the drawer body 3. The vertical channel curtain 9 is integrally molded, and arc guides are provided on both left and right sides, and a curtain chute is provided at its rear part. The vertical channel curtain 9 is slidably assembled with the vertical busbar 10 by means of the surface curtain chute. The cross-section is in the shape of a "T", and the front part has an arc angle for the incoming line contact 12 to be inserted and connected. The curtain partition 7 is integrally molded to separate the vertical busbar 10 from the functional unit compartment, and its support folding edge 16 is used to limit the falling position of the vertical channel curtain 9. The guide rail is riveted in a three-section manner and is symmetrically installed on the layer partition plate 8 on the left and right. The layer partition plate 8 is made of high-strength galvanized steel and is used for physical isolation between each drawer circuit, and the spacing is the same as the width of the drawer body 3. The incoming line contact 12 is installed at the left rear of the drawer body 3 and is fixed on the contact fixing plate 15 by self-tapping screws. The spacing between the three incoming line contacts 12 is the same as the spacing of the vertical busbar 10. The outgoing line contact 13 is installed at the right rear of the drawer body 3 and is fixed on the contact fixing plate 15 by self-tapping screws. The spacing between the three outgoing line contacts 13 is the same as the spacing of the outgoing copper busbar 11. Side plates 2 are provided on both sides of the isolation device main body 1. Drawer bodies 3 are evenly arranged inside the isolation device main body 1. A top cover 4 is provided at the top of the isolation device main body 1. An adjusting device 5 is provided at the bottom of the isolation device main body 1. A limiting device 6 is provided on one side of the side plate 2. The low-voltage drawer-type switchgear is widely used as a centralized control power distribution center in various industries with high requirements for power supply reliability due to its high reliability, safe and simple operation, convenient maintenance, compact space and replaceability. The vertical copper busbar in the vertical channel is the main conductor of the drawer cabinet, ensuring its safety and stability. The drawer side plate 2 is made of high-strength cold-rolled steel plated with colored zinc, and a guide groove is opened at its tail, and it is symmetrically installed on the left and right for installing the contact fixing plate 15. The incoming line contact 12 and the outgoing line contact 13 include a contact housing and a contact spring piece inside. The contact housing is integrally formed by die-casting with flame-retardant ABS material, the surface is flat and smooth, and it has good insulation performance; the contact spring piece is integrally formed by die-casting with copper material, the surface is silver-plated μm, and surface anti-dark treatment is performed, and different numbers of contact spring pieces are selected according to different current grades. The curtain-pushing plate 14 is integrally formed by die-casting with flame-retardant ABS material, the surface is flat and smooth, without shrinkage holes, bubbles, cracks and other defects, and its tail end is in the shape of a 45° triangle, corresponding to the position of the arc guide of the vertical channel curtain 9, playing a transmission role. The contact fixing plate 15 is made of high-strength galvanized steel and is provided with slots for installing the incoming line contacts 12 and the outgoing line contacts 13 of the ABCN phases respectively. When the functional unit is taken out, the vertical channel curtain 9 falls freely and is limited by the support folding edge of the curtain partition 7.

[0042] Refer to Figures 5 to 8, the adjusting device 5 includes a support plate 501. The support plate 501 is arranged at the bottom of the isolation device main body 1. A moving block 506 is arranged at the top of the support plate 501. A first damping rod 509 is fixedly connected to the bottom of the moving block 506. The bottom of the first damping rod 509 and the top of the support plate 501 are fixedly connected. A first spring 510 is sleeved on the surface of the first damping rod 509. The bottom of the first spring 510 and the top of the support plate 501 are fixedly connected. One end of the first spring 510 close to the first damping rod 509 and the bottom of the moving block 506 are fixedly connected. A rotating rod 507 is rotatably inserted through the middle of the two moving blocks 506. A cam 508 is fixedly connected to the surface of the rotating rod 507. The cam 508 is arranged at the bottom of the isolation device main body 1. When using the adjusting device 5, manually control the rotating rod 507 to drive the cam 508 to rotate, so that the cam 508 can squeeze the isolation device main body 1 upward from the bottom of the isolation device main body 1, and then the height of the isolation device main body 1 can be adjusted, and then it is convenient to support the isolation device main body 1 at a suitable position. One end of the rotating rod 507 away from the moving block 506 is fixedly connected with a circular plate 511. A rubber ring 513 is fixedly connected to the side of the moving block 506 close to the circular plate 511. A bolt 512 is threadedly inserted through the circular plate 511. One end of the bolt 512 away from the circular plate 511 is arranged on the side of the rubber ring 513 away from the moving block 506. Manually drive the rotating rod 507 to rotate through the circular plate 511. When the rotating rod 507 rotates to a suitable position, manually control the bolt 512 to rotate, so that the bolt 512 squeezes on one side of the rubber ring 513, causing the rubber to be squeezed and deformed, so that the rotating rod 507 can be well fixed in the middle of the two moving blocks 506. Rectangular frames 514 are evenly opened at the bottom of the isolation device main body 1. A rectangular plate 515 is slidably connected to the inner wall of the rectangular frame 514. One end of the rectangular plate 515 away from the rectangular frame 514 and the top of the support plate 501 are fixedly connected. A second damping rod 518 is fixedly connected to the top of the rectangular plate 515. One end of the second damping rod 518 away from the rectangular plate 515 and one side of the inner wall of the rectangular frame 514 are fixedly connected. A second spring 519 is sleeved on the surface of the second damping rod 518. One end of the second spring 519 and the top of the rectangular plate 515 are fixedly connected. One end of the second spring 519 close to the second damping rod 518 and the top of the inner wall of the rectangular frame 514 are fixedly connected. A limiting groove 516 is opened on the inner wall of the rectangular plate 515. A limiting rod 517 is slidably connected to the inner wall of the limiting groove 516. One end of the limiting rod 517 away from the limiting groove 516 and the top of the inner wall of the rectangular frame 514 are fixedly connected. The rectangular plate 515 is pulled towards the inner wall of the rectangular frame 514 by the second spring 519, so that the rectangular plate 515 is well restricted inside the rectangular frame 514, and then the support plate 501 is well arranged at the bottom of the isolation device main body 1. The limiting rod 517 slides on the inner wall of the limiting groove 516, which can, to a certain extent, prevent the rectangular plate 515 from completely sliding out of the inside of the rectangular frame 514.A limiting sleeve 502 is slidably sleeved on the bottom surface of the isolation device body 1. A plurality of clamping strips 503 are uniformly and fixedly connected to the top of the support plate 501. The limiting sleeve 502 is arranged on the side of the clamping strip 503 away from the support plate 501. A fixing hole 504 is formed in one side of the clamping strip 503. A rubber block 505 is arranged on the inner wall of the fixing hole 504. The rubber block 505 is fixedly connected to the surface of the limiting sleeve 502. Manually sleeve the limiting sleeve 502 on the bottom surface of the isolation device body 1, and then arrange the four clamping strips 503 inside the limiting sleeve 502, and then squeeze the rubber block 505 into the fixing hole 504, so that the limiting sleeve 502 can be well restricted on the top of the support plate 501, which can play a certain protective role.

[0043] Refer to Figures 9 to 11, the limiting device 6 includes a support frame 603. The bottom of the support frame 603 is fixedly connected to the top of the support plate 501. A support bar 601 is slidably connected to the inner wall of the support frame 603. A clamping frame 602 is arranged on one side of the support bar 601. The clamping frame 602 is slidably sleeved on one side of the isolation device main body 1. Positioning grooves 604 are formed on both sides of the support frame 603. A rubber strip 605 is arranged on the inner wall of the positioning groove 604. The rubber strip 605 is fixedly connected to the side surface of the bottom of the support bar 601. When using the limiting device 6, manually slide the support bar 601 into the inner wall of the support frame 603, and then extrude the rubber strip 605 out of the interior of the support frame 603 through the positioning groove 604. In this way, the support bar 601 can be well restricted inside the support frame 603. Then the clamping frame 602 can be sleeved on the surface of the side plate 2, which is convenient for subsequently fixing the side plate 2 on the surface of the isolation device main body 1 with screws. Support blocks 609 are uniformly fixedly connected to the top of the clamping frame 602. A threaded rod 610 is rotatably inserted through one side of the support block 609. The thread direction on the surface of the threaded rod 610 is opposite from the middle to both sides. A clamping groove 611 is formed on the top of the clamping frame 602. An extrusion block 612 is slidably connected to the inner wall of the clamping groove 611. The two extrusion blocks 612 are uniformly sleeved on the surfaces of both ends of the threaded rod 610. Manually control the rotation of the threaded rod 610. Since the thread direction on the surface of the threaded rod 610 is opposite from the middle to both sides, the two extrusion blocks 612 can be well pressed against one side of the side plate 2, so as to facilitate pressing the side plate 2 tightly against the surface of the isolation device main body 1. A third damping rod 607 is fixedly connected to the side of the support bar 601 close to the clamping frame 602. One end of the third damping rod 607 far from the support bar 601 is fixedly connected to one side of the clamping frame 602. A third spring 608 is sleeved on the surface of the third damping rod 607. One end of the third spring 608 is fixedly connected to one side of the support bar 601. One end of the third spring 608 close to the third damping rod 607 is fixedly connected to one side of the clamping frame 602. The clamping frame 602 is pressed away from the support bar 601 by the third spring 608, so that the clamping frame 602 can be well sleeved on the surface of the side plate 2. A connection groove 613 is formed on one side of the support bar 601. A sliding rod 615 is fixedly connected to the inner wall of the connection groove 613. A fourth spring 616 is sleeved on the surface of the sliding rod 615. One end of the fourth spring 616 is fixedly connected to the top of the moving frame 614. One end of the fourth spring 616 close to the sliding rod 615 is fixedly connected to the top of the inner wall of the connection groove 613. A moving frame 614 is slidably sleeved on the surface of the sliding rod 615. A rectangular block 617 is fixedly connected to the bottom of the inner wall of the moving frame 614. A positioning frame 606 is slidably sleeved on the bottom of the rectangular block 617. The bottom of the positioning frame 606 is fixedly connected to the top of the support plate 501. The moving frame 614 is pressed against the bottom of the inner wall of the connection groove 613 by the fourth spring 616, so that the rectangular block 617 is arranged inside the positioning frame 606.In this way, the support bar 601 can be well supported by the moving frame 614.,

[0044] Working principle: Guide rail fixing grooves are provided on both side plates 2 of the drawer body 3. Place the drawer body 3 on the guide rail and push the drawer body 3 into the cabinet along the guide rail direction. At this time, it is in the disconnected position, and the vertical channel curtain 9 is in the lowered state, and the drawer body 3 is completely isolated from the vertical busbar. This state is in the disconnected position and can also be used for maintaining the equipment inside the cabinet. Connect the secondary plug-in component. This state is in the test position. Under this state, power on is carried out to conduct tests on the maintenance of the secondary control circuit. At the same time, the vertical channel curtain 9 is still in the lowered state, and the drawer is completely isolated from the vertical busbar of the body. Operate the primary propulsion mechanism. During this process, the curtain push plate 14 contacts the arc surfaces on both sides of the vertical channel curtain 9 and gradually pushes the vertical channel curtain 9 upward. At this time, the vertical busbar is aligned with the incoming line contact 12. The propulsion mechanism drives the incoming line contact 12 and the outgoing line contact 13 at the same time, so that the incoming line contact 12 is connected to the vertical busbar and the outgoing line contact 13 is connected to the outgoing line busbar 11, thus realizing the connection of the circuit between the unit drawer and the power distribution cabinet. This state is in the connected position, and the equipment is in the normal working and running state. When the equipment is in the above connected position and test position, the drawer body 3 is inside the drawer door, which can prevent the operator from touching the live busbar during operation.When in the disconnected position, the drawer body 3 is taken out from the drawer cabinet. After opening the cabinet door, the protection level can reach IP20. The live busbar is completely blocked by the vertical channel curtain 9, ensuring the safety during maintenance when the equipment is energized, thus improving the reliability and safety of the drawer cabinet. Due to its high reliability, safe and simple operation, convenient maintenance, compact space and replaceability, the low-voltage drawer-type switchgear is widely used as a centralized control power distribution center in various industries with high requirements for power supply reliability. The vertical busbar in the vertical channel is the main conductor of the drawer cabinet. To ensure its safety and stability, when using the adjusting device 5, manually drive the rotating rod 507 to rotate through the circular plate 511. When the rotating rod 507 rotates to a suitable position, then manually control the bolt 512 to rotate, so that the bolt 512 presses against one side of the rubber ring 513, causing the rubber to be deformed by extrusion. In this way, the rotating rod 507 can be well fixed in the middle of the two moving blocks 506, and then the cam 508 can squeeze the isolation device main body 1 upward from the bottom of the isolation device main body 1, so as to adjust the height of the isolation device main body 1. Then manually put the limit sleeve 502 on the surface of the bottom of the isolation device main body 1, and then set the four clamping strips 503 inside the limit sleeve 502, and then squeeze the rubber block 505 into the fixing hole 504. In this way, the limit sleeve 502 can be well restricted on the top of the support plate 501, which can play a certain protective role and facilitate supporting the isolation device main body 1 in a suitable position. Among them, the second spring 519 pulls the rectangular plate 515 towards the inner wall of the rectangular frame 514, so as to well restrict the rectangular plate 515 inside the rectangular frame 514, and then well set the support plate 501 at the bottom of the isolation device main body 1. The limit rod 517 slides on the inner wall of the limit groove 516, which can, to a certain extent, prevent the rectangular plate 515 from completely sliding out of the inside of the rectangular frame 514. When using the limiting device 6, manually slide the support bar 601 into the inner wall of the support frame 603, and then squeeze the rubber strip 605 out of the inside of the support frame 603 through the positioning groove 604. In this way, the support bar 601 can be well restricted inside the support frame 603. The third spring 608 squeezes the clamping frame 602 away from the support bar 601, so that the clamping frame 602 can be well sleeved on the surface of the side plate 2. In this way, the clamping frame 602 can be sleeved on the surface of the side plate 2. Manually control the rotation of the threaded rod 610. Since the thread direction on the surface of the threaded rod 610 is opposite from the middle to both sides, the two pressing blocks 612 can well press against one side of the side plate 2, which is convenient for closely attaching the side plate 2 to the surface of the isolation device main body 1, so as to facilitate fixing the side plate 2 to the surface of the isolation device main body 1 with screws later. The fourth spring 616 squeezes the moving frame 614 towards the bottom of the inner wall of the connecting groove 613, so that the rectangular block 617 is arranged inside the positioning frame 606. In this way, the support bar 601 can be well supported by the moving frame 614.It should be noted that all the damping rods in this case are telescopic dampers, which can absorb energy during the telescopic process.

Claims

1. A low-voltage drawer cabinet vertical channel isolation device, characterized in that: The invention comprises an isolation device body (1), a curtain push plate (14), a layer partition plate (8), a drawer body (3) and a vertical channel curtain (9), two sets of curtain push plates (14) are symmetrically installed at the left rear of the drawer body (3), the curtain push plates (14) are in contact with the arc surfaces on both sides of the vertical channel curtain (9), and the vertical channel curtain (9) is gradually pushed upward, the vertical channel curtain (9) is integrally formed by a mold, and curtain slide grooves are arranged on both sides, the vertical channel curtain (9) is slidably assembled with the help of the surface curtain slide grooves and the vertical busbar (10), the curtain partition plate (7) is integrally formed by a mold, the curtain partition plate (7) is used to separate the vertical busbar (10) from the functional unit compartment, and the supporting folding edge (16) of the curtain partition plate (7) is The invention is used for limiting the falling position of the vertical channel curtain (9), the guide rails are symmetrically installed on the layer partition (8), the layer partition (8) and the curtain partition (7) can be detachably assembled, the guide rail spacing is the same as the width of the drawer body (3), an incoming line contact (12) is installed at the left rear of the drawer body (3), the incoming line contact (12) is fixed on the contact fixing plate (15) by self-tapping screws, and the spacing between the three incoming line contacts (12) is the same as the spacing between the vertical busbar (10), and an outgoing line contact (13) is installed at the right rear of the drawer body (3), the outgoing line contact (13) is fixed on the contact fixing plate (15) by self-tapping screws, and the spacing between the three outgoing line contacts (13) is the same as the spacing between the outgoing copper busbar (11).

2. A low-voltage drawer cabinet vertical channel isolation device according to claim 1, characterized in that: Side panels (2) are arranged on both sides of the isolation device body (1), drawer bodies (3) are evenly arranged inside the isolation device body (1), a top cover (4) is arranged on the top of the isolation device body (1), an adjustment device (5) is arranged on the bottom of the isolation device body (1), a limiting device (6) is arranged on one side of the side panel (2), and the adjustment device (5) comprises a support plate (501), the support plate (501) is arranged on the bottom of the isolation device body (1), a moving block (506) is arranged on the top of the support plate (501), and the bottom of the moving block (506) is fixedly connected to a first damping rod (509) ), the bottom of the first damping rod (509) is fixedly connected to the top of the support plate (501), the surface of the first damping rod (509) is sleeved with a first spring (510), the bottom of the first spring (510) is fixedly connected to the top of the support plate (501), one end of the first spring (510) close to the first damping rod (509) is fixedly connected to the bottom of the moving block (506), a rotating rod (507) is inserted and rotated through the middle of the two moving blocks (506), a cam (508) is fixedly connected to the surface of the rotating rod (507), and the cam (508) is arranged at the bottom of the isolation device body (1).

3. A low-voltage drawer cabinet vertical channel isolation device according to claim 2, characterized in that: One end of the rotating rod (507) away from the moving block (506) is fixedly connected to a circular plate (511), and one side of the moving block (506) close to the circular plate (511) is fixedly connected to a rubber ring (513). A bolt (512) is threadedly inserted through the circular plate (511), and one end of the bolt (512) away from the circular plate (511) is arranged on a side of the rubber ring (513) away from the moving block (506).

4. A low-voltage drawer cabinet vertical channel isolation device according to claim 3, characterized in that: A rectangular frame (514) is evenly provided at the bottom of the isolation device body (1), and a rectangular plate (515) is slidably connected to the inner wall of the rectangular frame (514), and one end of the rectangular plate (515) away from the rectangular frame (514) is fixedly connected to the top of the support plate (501), and one end of the second spring (519) close to the second damping rod (518) is fixedly connected to the top of the inner wall of the rectangular frame (514), and a limiting groove (516) is provided on the inner wall of the rectangular plate (515), and the inner wall of the limiting groove (516) is slidably connected to a limiting rod (517), and one end of the limiting rod (517) away from the limiting groove (516) is fixedly connected to the top of the inner wall of the rectangular frame (514).

5. A low-voltage drawer cabinet vertical channel isolation device according to claim 4, characterized in that: A second damping rod (518) is fixedly connected to the top of the rectangular plate (515); one end of the second damping rod (518) away from the rectangular plate (515) is fixedly connected to one side of the inner wall of the rectangular frame (514); a second spring (519) is sleeved on the surface of the second damping rod (518); one end of the second spring (519) is fixedly connected to the top of the rectangular plate (515).

6. A low-voltage drawer cabinet vertical channel isolation device according to claim 5, characterized in that: A limiting sleeve (502) is slidingly sleeved on the bottom surface of the isolation device body (1); a locking strip (503) is evenly and fixedly connected to the top of the support plate (501); the limiting sleeve (502) is arranged on a side of the locking strip (503) away from the support plate (501); a fixing hole (504) is opened on one side of the locking strip (503); a rubber block (505) is arranged on the inner wall of the fixing hole (504); and the rubber block (505) is fixedly connected to the surface of the limiting sleeve (502).

7. A low-voltage drawer cabinet vertical channel isolation device according to claim 6, characterized in that: The limiting device (6) comprises a support frame (603), the bottom of the support frame (603) is fixedly connected to the top of the support plate (501), the inner wall of the support frame (603) is slidably connected to a support bar (601), one side of the support bar (601) is provided with a positioning frame (602), the positioning frame (602) is slidably sleeved on one side of the isolation device body (1), both sides of the support frame (603) are provided with positioning grooves (604), the inner wall of the positioning groove (604) is provided with a rubber strip (605), and the rubber strip (605) is fixedly connected to the side of the bottom of the support bar (601).

8. A low-voltage drawer cabinet vertical channel isolation device according to claim 7, characterized in that: The top of the positioning frame (602) is evenly fixedly connected with a support block (609), one side of the support block (609) is rotatably penetrated by a threaded rod (610), the thread direction of the surface of the threaded rod (610) is opposite from the middle to both sides, the top of the positioning frame (602) is provided with a positioning groove (611), the inner wall of the positioning groove (611) is slidably connected with an extrusion block (612), and the two extrusion blocks (612) are evenly sleeved on the surfaces of both ends of the threaded rod (610).

9. A low-voltage drawer cabinet vertical channel isolation device according to claim 8, characterized in that: A third damping rod (607) is fixedly connected to one side of the support bar (601) close to the positioning frame (602); one end of the third damping rod (607) away from the support bar (601) is fixedly connected to one side of the positioning frame (602); a third spring (608) is sleeved on the surface of the third damping rod (607); one end of the third spring (608) is fixedly connected to one side of the support bar (601); and one end of the third spring (608) close to the third damping rod (607) is fixedly connected to one side of the positioning frame (602).

10. A low-voltage drawer cabinet vertical channel isolation device according to claim 9, characterized in that: A connecting groove (613) is provided on one side of the support bar (601), and a sliding rod (615) is fixedly connected to the inner wall of the connecting groove (613), and a fourth spring (616) is sleeved on the surface of the sliding rod (615), and one end of the fourth spring (616) is fixedly connected to the top of the moving frame (614), and one end of the fourth spring (616) close to the sliding rod (615) is fixedly connected to the top of the inner wall of the connecting groove (613), and the surface of the sliding rod (615) is slidably sleeved with a moving frame (614), and the bottom of the inner wall of the moving frame (614) is fixedly connected with a rectangular block (617), and the bottom of the rectangular block (617) is slidably sleeved with a positioning frame (606), and the bottom of the positioning frame (606) is fixedly connected to the top of the support plate (501).

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