Drawer type low-voltage switch cabinet

Abstract

The utility model discloses a drawer-type low-voltage switch cabinet, which comprises a cabinet body, a plurality of groups of mounting racks are arranged in the cabinet body, drawers are arranged among the plurality of groups of mounting racks, two groups of connecting racks which are distributed in a crossed manner are arranged between adjacent mounting racks, and two ends of each connecting rack are rotatably provided with sliding blocks. The connecting frame is slidably connected with the upper mounting frame and the lower mounting frame through two sliding blocks, two symmetrically-distributed bidirectional lead screws are arranged in each mounting frame, a first adjusting frame is arranged in each mounting frame, a second adjusting frame is arranged in each first adjusting frame, and the first adjusting frames are slidably connected with the mounting frames. The second adjusting frame is in sliding connection with the first adjusting frame, and the size of the installation space between the drawers in the cabinet body is adjusted through the multiple sets of installation frames and the connecting frames distributed between the adjacent installation frames in a crossed mode, so that a worker can conveniently use the switch cabinet to freely assemble the drawers of various models.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, and particularly relates to a drawer-type low-voltage switch cabinet. Background Technique

[0002] The drawer-type low-voltage switch cabinet is a common electrical device, which is responsible for completing the control, protection, conversion and distribution of electric energy in the low-voltage power supply system, and it has large-scale applications in substations, power plants and power distribution centers. For example, the MNS low-voltage draw-out switch cabinet includes a cabinet body and a drawer compartment, and functional modules are installed in each drawer compartment, so that multiple functional modules are assembled together. The low-voltage draw-out switch cabinet has been widely used by virtue of multiple mutually isolated and non-interfering draw-out functional units in the cabinet body, and it is also one of the important devices in the power supply system.

[0003] In the prior art, the installation of each layer in the switch cabinet needs to use connecting parts such as bolts, and the installation distance between layers cannot be flexibly adjusted, so various different models of drawer compartments cannot be flexibly assembled. Moreover, the space where the drawer compartment can be drawn out is limited when the internal electrical components of the switch cabinet drawer compartment need to be overhauled after installation in the prior art. Therefore, the drawer compartment needs to be disassembled as a whole during the overhaul process, which increases the difficulty of the overhaul work. Content of the Utility Model

[0004] The purpose of the utility model is to provide a drawer-type low-voltage switch cabinet to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A drawer-type low-voltage switch cabinet includes a cabinet body. A plurality of mounting frames are arranged in the cabinet body. Drawers are arranged between the plurality of mounting frames. Two sets of cross-distributed connecting frames are arranged between adjacent mounting frames. Sliders are rotatably installed at both ends of the two sets of connecting frames. The connecting frames are slidably connected to the upper and lower mounting frames respectively through the two sets of sliders. Two sets of symmetrically distributed bidirectional lead screws are arranged in each mounting frame. A first adjusting frame is arranged in the mounting frame. A second adjusting frame is arranged in the first adjusting frame. The first adjusting frame is slidably connected to the mounting frame. The second adjusting frame is slidably connected to the first adjusting frame. Two sets of symmetrically distributed slide rails are arranged on the second adjusting frame. The drawer is slidably clamped with the slide rails. A threaded rod is arranged in the mounting frame. A threaded tube is arranged in the first adjusting frame.

[0006] As a further preference of the technical solution, both ends of the two sets of bidirectional lead screws respectively penetrate through the mounting frame and are rotatably connected to the mounting frame through bearings. Both ends of the two sets of bidirectional lead screws penetrate through the corresponding two sets of sliders and are respectively threadedly connected to the two sets of sliders. Synchronous wheels are sleeved on the left ends of the two sets of bidirectional lead screws. A synchronous belt is arranged in the mounting frame. The synchronous belt is respectively in transmission connection with the two sets of synchronous wheels.

[0007] As a further preference of this technical solution, the left end of the threaded rod penetrates through the mounting frame and is rotatably connected to the mounting frame through a bearing. The right end of the threaded rod penetrates through the first adjusting frame and is threadedly connected to the first adjusting frame. The threaded tube penetrates through the first adjusting frame and is rotatably connected to the first adjusting frame through a bearing. The right end of the threaded tube penetrates through the second adjusting frame and is threadedly connected to the second adjusting frame.

[0008] As a further preference of this technical solution, two groups of symmetrically distributed limit grooves are provided on the threaded rod. Two groups of symmetrically distributed limit blocks are provided inside the threaded tube. The limit blocks are arranged corresponding to the limit grooves. The threaded tube is slidably sleeved on the threaded rod through the limit blocks.

[0009] As a further preference of this technical solution, a clamping block is provided on the drawer. Two groups of symmetrically distributed clamping frames are provided inside the second adjusting frame. Clamping rods are fixedly installed on both of the two clamping frames. Both of the two clamping rods are movably clamped with the clamping block. Springs are sleeved on both of the two clamping frames. Stopping blocks are fixedly installed on both of the two clamping frames. The clamping frames are slidably connected to the second adjusting frame through the stopping blocks. Two ends of the spring are respectively fixedly connected to the stopping block and the second adjusting frame. Rack bars are provided on both of the two clamping frames.

[0010] As a further preference of this technical solution, a handle is provided inside the second adjusting frame. The handle penetrates through the second adjusting frame and is rotatably connected to the second adjusting frame. A first torsion spring is sleeved on the handle. Two ends of the first torsion spring are respectively fixedly connected to the handle and the second adjusting frame. A gear is sleeved on the handle. The gear is respectively meshed and connected with the two gear racks.

[0011] As a further preference of this technical solution, an insertion block is provided on the left side of the drawer. A mounting rod is provided on the mounting frame. Two groups of symmetrically distributed positioning frames are sleeved on the mounting rod. The two positioning frames are respectively movably clamped with the insertion block. A sleeve is sleeved on the positioning frame. A second torsion spring is sleeved on the mounting rod. Two ends of the second torsion spring are respectively fixedly connected to the positioning frame and the mounting frame.

[0012] The utility model provides a drawer-type low-voltage switch cabinet, which has the following beneficial effects:

[0013] (1) The utility model realizes the adjustment of the installation spacing of the drawers in the cabinet through multiple sets of mounting frames and connecting frames that are cross-distributed between adjacent mounting frames, thereby facilitating the staff to freely assemble drawers of various models using this switch cabinet; during the use of this switch cabinet, different models of drawers need to be installed in the cabinet according to actual usage requirements. At this time, the motors in each mounting frame are started to drive the rotation of the bidirectional lead screws. Under the limiting action of the mounting frame, the two sets of sliders in the mounting frame slide synchronously towards or away from each other, thereby adjusting the supporting angle of the cross-distributed connecting frames, and further realizing the adjustment of the spacing between the two sets of mounting frames, facilitating the staff to install different models of drawers between the two sets of mounting frames.

[0014] (2) The utility model realizes the maximization adjustment of the extraction space of the drawers installed above the mounting frames through the first adjustment frame and the second adjustment frame provided on the mounting frames. When it is necessary to repair the electrical components in the drawers, the first adjustment frame and the second adjustment frame drive the drawers to be completely extended from the cabinet, exposing the whole drawers within the operable range of the staff, and the whole drawers do not need to be disassembled from the cabinet, improving the convenience of repairing the electronic components in the drawers; when it is necessary to extract the drawers, the motor in the mounting frame is started to drive the rotation of the threaded rod. Under the limiting action of the mounting frame, the first adjustment frame slides in the mounting frame. Under the action of the limiting block and the limiting groove, the threaded pipe rotates along with the rotation of the threaded rod while sliding along with the first adjustment frame. Under the limiting action of the first adjustment frame, the second adjustment frame drives the drawers to slide out until the drawers are completely extended from the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the utility model;

[0016] Figure 2 is a schematic structural diagram of the mounting frame of the utility model;

[0017] Figure 3 is a schematic structural diagram of the connecting frame of the utility model;

[0018] Figure 4 is a schematic structural diagram of the second adjustment frame of the utility model;

[0019] Figure 5 is of the utility model Figure 4 is an enlarged structural diagram of part A in the utility model;

[0020] Figure 6 is a schematic structural diagram of the positioning frame of the utility model;

[0021] Figure 7 is of the utility model Figure 6 is an enlarged structural diagram of part B in the utility model;

[0022] In the figure: 1, cabinet body; 2, mounting rack; 3, drawer; 4, connecting rack; 5, slider; 6, bidirectional lead screw; 7, synchronous pulley; 8, synchronous belt; 9, first adjusting rack; 10, second adjusting rack; 11, clamping block; 12, handle; 13, first torsion spring; 14, gear; 15, clamping rack; 16, rack; 17, spring; 18, stop block; 19, clamping rod; 20, inserting block; 21, mounting rod; 22, positioning rack; 23, sleeve; 24, second torsion spring; 25, threaded rod; 26, threaded tube; 27, limiting groove; 28, limiting block; 29, slide rail. Detailed implementation manner

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] The present invention provides a technical solution: As Figure 1 、 Figure 2 and Figure 3 shown, in this embodiment, a drawer-type low-voltage switch cabinet includes a cabinet body 1. Multiple mounting racks 2 are provided inside the cabinet body 1. Drawers 3 are provided between multiple mounting racks 2. Two sets of cross-distributed connecting racks 4 are provided between adjacent mounting racks 2. Sliders 5 are rotatably installed at both ends of the two sets of connecting racks 4. The connecting rack 4 is slidably connected to the upper and lower two sets of mounting racks 2 through the two sets of sliders 5 respectively. Two sets of symmetrically distributed bidirectional lead screws 6 are provided inside each mounting rack 2. A first adjusting rack 9 is provided inside the mounting rack 2. A second adjusting rack 10 is provided inside the first adjusting rack 9. The first adjusting rack 9 is slidably connected to the mounting rack 2. The second adjusting rack 10 is slidably connected to the first adjusting rack 9. Two sets of symmetrically distributed slide rails 29 are provided on the second adjusting rack 10. The drawer 3 is slidably clamped with the slide rail 29. A threaded rod 25 is provided inside the mounting rack 2. A threaded tube 26 is provided inside the first adjusting rack 9. The two ends of the two sets of bidirectional lead screws 6 respectively penetrate through the mounting rack 2 and are rotatably connected to the mounting rack 2 through bearings. The two ends of the two sets of bidirectional lead screws 6 respectively penetrate through the corresponding two sets of sliders 5 and are respectively threadedly connected to the two sets of sliders 5. Synchronous pulleys 7 are sleeved on the left ends of the two sets of bidirectional lead screws 6. A synchronous belt 8 is provided inside the mounting rack 2. The synchronous belt 8 is respectively drivingly connected to the two sets of synchronous pulleys 7.

[0025] The adjustment of the installation spacing of the drawers 3 in the cabinet body 1 is realized through the set of multiple mounting brackets 2 and the connecting brackets 4 cross-distributed between adjacent mounting brackets 2, thereby facilitating the staff to freely assemble drawers 3 of various models using this switch cabinet; during the use of this switch cabinet, different models of drawers 3 need to be installed in the cabinet body 1 according to actual usage requirements. At this time, the motors in each mounting bracket 2 are started to drive the rotation of the bidirectional lead screw 6. Under the limiting action of the mounting bracket 2, the two sets of sliders 5 in the mounting bracket 2 slide synchronously relative to each other or outwards, thereby adjusting the supporting angle of the cross-distributed connecting brackets 4, and further realizing the adjustment of the spacing between the two sets of mounting brackets 2, facilitating the staff to install different models of drawers 3 between the two sets of mounting brackets 2.

[0026] As Figure 3 and Figure 4 As shown, the left end of the threaded rod 25 penetrates through the mounting bracket 2 and is rotatably connected to the mounting bracket 2 through a bearing. The right end of the threaded rod 25 penetrates through the first adjusting bracket 9 and is threadedly connected to the first adjusting bracket 9. The threaded pipe 26 penetrates through the first adjusting bracket 9 and is rotatably connected to the first adjusting bracket 9 through a bearing. The right end of the threaded pipe 26 penetrates through the second adjusting bracket 10 and is threadedly connected to the second adjusting bracket 10. Two sets of symmetrically distributed limiting grooves 27 are provided on the threaded rod 25. Two sets of symmetrically distributed limiting blocks 28 are provided inside the threaded pipe 26. The limiting blocks 28 are correspondingly arranged with the limiting grooves 27. The threaded pipe 26 is slidably sleeved on the threaded rod 25 through the limiting blocks 28.

[0027] The maximum adjustment of the extraction space of the drawer 3 installed above the mounting bracket 2 is realized through the first adjusting bracket 9 and the second adjusting bracket 10 provided on the mounting bracket 2. When it is necessary to repair the electrical components in the drawer 3, the first adjusting bracket 9 and the second adjusting bracket 10 drive the drawer 3 to be completely extended out of the cabinet body 1, exposing the whole drawer 3 within the operable range of the staff, and the whole drawer 3 does not need to be disassembled from the cabinet body 1, improving the convenience of repairing the electronic components in the drawer 3.

[0028] As Figure 5 、 Figure 6 and Figure 7As shown in the figure, a clamping block 11 is provided on the drawer 3, and two sets of symmetrically distributed clamping frames 15 are provided in the second adjusting frame 10. Clamping rods 19 are fixedly installed on both sets of clamping frames 15, and both sets of clamping rods 19 are movably clamped with the clamping block 11. Springs 17 are sleeved on both sets of clamping frames 15. Stopping blocks 18 are fixedly installed on both sets of clamping frames 15. The clamping frames 15 are slidably connected to the second adjusting frame 10 through the stopping blocks 18. The two ends of the spring 17 are fixedly connected to the stopping block 18 and the second adjusting frame 10 respectively. Rack bars 16 are provided on both sets of clamping frames 15. A handle 12 is provided in the second adjusting frame 10. The handle 12 penetrates through the second adjusting frame 10 and is rotatably connected to the second adjusting frame 10. A first torsion spring 13 is sleeved on the handle 12. The two ends of the first torsion spring 13 are fixedly connected to the handle 12 and the second adjusting frame 10 respectively. A gear 14 is sleeved on the handle 12. The gear 14 is meshed with both sets of gears 14 respectively. An inserting block 20 is provided on the left side of the drawer 3. An installing rod 21 is provided on the installing frame 2. Two sets of symmetrically distributed positioning frames 22 are sleeved on the installing rod 21. The two sets of positioning frames 22 are respectively movably clamped with the inserting block 20. A sleeve 23 is sleeved on the positioning frame 22. A second torsion spring 24 is sleeved on the installing rod 21. The two ends of the second torsion spring 24 are fixedly connected to the positioning frame 22 and the installing frame 2 respectively.

[0029] When the drawer 3 is installed, the clamping block 11 is clamped with the clamping rod 19, and the inserting block 20 is clamped with the positioning frame 22, ensuring the firm installation of the drawer 3 on the installing frame 2. And when the handle 12 drives the gear 14 to rotate, the two sets of rack bars 16 and the clamping frames 15 are synchronously pushed to slide, so that the clamping between the clamping rod 19 and the clamping block 11 can be released, ensuring the firmness of the drawer 3 while ensuring the convenience of disassembly and assembly of the drawer 3.

[0030] The utility model provides a drawer-type low-voltage switch cabinet, and the specific working principle is as follows: During the use of the switch cabinet, different models of drawers 3 need to be installed in the cabinet body 1 according to actual use requirements. At this time, the motors in each mounting frame 2 are started to drive the rotation of the bidirectional lead screw 6. Under the limiting action of the mounting frame 2, the two groups of sliders 5 in the mounting frame 2 slide synchronously relatively or outwards, thereby adjusting the support angle of the cross-distributed connecting frames 4, and further realizing the adjustment of the distance between the two groups of mounting frames 2, which is convenient for the staff to install different models of drawers 3 between the two groups of mounting frames 2. When it is necessary to draw out the drawer 3, the motor in the mounting frame 2 is started to drive the rotation of the threaded rod 25. Under the limiting action of the mounting frame 2, the first adjusting frame 9 slides in the mounting frame 2. Under the action of the limiting block 28 and the limiting groove 27, the threaded pipe 26 rotates with the rotation of the threaded rod 25 while sliding with the first adjusting frame 9. Under the limiting action of the first adjusting frame 9, the second adjusting frame 10 drives the drawer 3 to slide out until the drawer 3 completely extends out of the cabinet body 1. When the drawer 3 in the switch cabinet is installed, the clamping block 11 is clamped with the clamping rod 19, and the inserting block 20 is clamped with the positioning frame 22, ensuring the firmness of the installation of the drawer 3 in the mounting frame 2. And when the handle 12 drives the gear 14 to rotate, the two groups of racks 16 and the clamping frame 15 are synchronously pushed to slide, so that the clamping connection between the clamping rod 19 and the clamping block 11 can be released, ensuring the firmness of the fixation of the drawer 3 and the convenience of disassembly and assembly of the drawer 3.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drawer-type low-voltage switchgear cabinet, comprising a cabinet body (1), characterized in that: A plurality of mounting frames (2) are provided inside the cabinet body (1). Drawers (3) are provided between the plurality of mounting frames (2). Two sets of connecting frames (4) with cross distribution are provided between adjacent mounting frames (2). Sliders (5) are rotatably mounted at both ends of the two sets of connecting frames (4). The connecting frames (4) are slidably connected to the upper and lower two sets of mounting frames (2) respectively through the two sets of sliders (5). Two sets of symmetrically distributed bidirectional lead screws (6) are provided inside each mounting frame (2). A first adjusting frame (9) is provided inside the mounting frame (2). A second adjusting frame (10) is provided inside the first adjusting frame (9). The first adjusting frame (9) is slidably connected to the mounting frame (2). The second adjusting frame (10) is slidably connected to the first adjusting frame (9). Two sets of symmetrically distributed slide rails (29) are provided on the second adjusting frame (10). The drawer (3) is slidably clamped with the slide rails (29). A threaded rod (25) is provided inside the mounting frame (2). A threaded tube (26) is provided inside the first adjusting frame (9).

2. A drawer-type low-voltage switchgear according to claim 1, characterized in that: Both ends of the two sets of bidirectional lead screws (6) respectively penetrate through the mounting frame (2) and are rotatably connected to the mounting frame (2) through bearings. Both ends of the two sets of bidirectional lead screws (6) penetrate through the corresponding two sets of sliders (5) and are respectively threadedly connected to the two sets of sliders (5). Synchronous wheels (7) are sleeved on the left ends of the two sets of bidirectional lead screws (6). A synchronous belt (8) is provided inside the mounting frame (2). The synchronous belt (8) is respectively drivingly connected to the two sets of synchronous wheels (7).

3. A drawer-type low-voltage switchgear according to claim 1, characterized in that: The left end of the threaded rod (25) penetrates through the mounting frame (2) and is rotatably connected to the mounting frame (2) through a bearing. The right end of the threaded rod (25) penetrates through the first adjusting frame (9) and is threadedly connected to the first adjusting frame (9). The threaded tube (26) penetrates through the first adjusting frame (9) and is rotatably connected to the first adjusting frame (9) through a bearing. The right end of the threaded tube (26) penetrates through the second adjusting frame (10) and is threadedly connected to the second adjusting frame (10).

4. A drawer-type low-voltage switchgear according to claim 1, characterized in that: Two sets of symmetrically distributed limiting grooves (27) are formed on the threaded rod (25). Two sets of symmetrically distributed limiting blocks (28) are provided inside the threaded tube (26). The limiting blocks (28) are correspondingly arranged with the limiting grooves (27). The threaded tube (26) is slidably sleeved on the threaded rod (25) through the limiting blocks (28).

5. A drawer-type low-voltage switchgear according to claim 1, characterized in that: A clamping block (11) is provided on the drawer (3). Two sets of symmetrically distributed clamping frames (15) are provided inside the second adjusting frame (10). Clamping rods (19) are fixedly mounted on both sets of clamping frames (15). Both sets of clamping rods (19) are movably clamped with the clamping block (11). Springs (17) are sleeved on both sets of clamping frames (15). Stopping blocks (18) are fixedly mounted on both sets of clamping frames (15). The clamping frames (15) are slidably connected to the second adjusting frame (10) through the stopping blocks (18). Both ends of the spring (17) are respectively fixedly connected to the stopping block (18) and the second adjusting frame (10). Rack bars (16) are provided on both sets of clamping frames (15).

6. A drawer-type low-voltage switchgear according to claim 1, characterized in that: A handle (12) is provided inside the second adjusting frame (10). The handle (12) penetrates through the second adjusting frame (10) and is rotatably connected to the second adjusting frame (10). A first torsion spring (13) is sleeved on the handle (12). Two ends of the first torsion spring (13) are respectively fixedly connected to the handle (12) and the second adjusting frame (10). A gear (14) is sleeved on the handle (12), and the gear (14) is meshed and connected with two groups of gears (14).

7. A drawer-type low-voltage switchgear according to claim 1, characterized in that: An insertion block (20) is provided on the left side of the drawer (3). An installation rod (21) is provided on the installation frame (2). Two symmetrically distributed positioning frames (22) are sleeved on the installation rod (21). The two groups of positioning frames (22) are respectively movably clamped with the insertion block (20). A sleeve (23) is sleeved on the positioning frame (22). A second torsion spring (24) is sleeved on the installation rod (21). Two ends of the second torsion spring (24) are respectively fixedly connected to the positioning frame (22) and the installation frame (2).

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