Double-drawer switch cabinet

Abstract

The invention relates to the technical field of switch cabinets, and discloses a double-drawer switch cabinet which comprises a cabinet body, a plurality of drawable drawer units are installed on the front side and the rear side of the cabinet body, two sets of lifting mechanisms are installed on the side edge of the cabinet body, and each lifting mechanism comprises an electric lifting sliding table fixedly installed on the side edge of the cabinet body. And a cantilever is fixedly mounted at the movable end of the electric lifting sliding table. The movable end of the electric lifting sliding table drives the cantilever and the door-shaped frame to move downwards, so that the supporting rail installed on the door-shaped frame descends to the clamping groove in the side edge of the drawer unit to be taken out, at the moment, a maintainer cuts off a power source of the drawer unit and unlocks the drawer unit and the cabinet body, the drawer unit is pulled out through the handle, and then the drawer unit is taken out. When the drawer unit is pulled out of the cabinet body, the supporting rails are inserted into the clamping grooves in the two sides of the drawer unit, the drawer unit can be borne by the supporting rails, and the situation that the drawer unit falls off when being pulled out of the cabinet body due to the overweight of the drawer unit, and electrical elements in the drawer unit are damaged is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, and in particular to a double-drawer switch cabinet. Background Art

[0002] The withdrawable switch cabinet is composed of a fixed cabinet and a removable device part equipped with switches and other main electrical components. The removable part should be easy to move and reliably positioned after being moved in. Drawers of the same type and specification can be reliably interchanged. The processing method of the cabinet part in the withdrawable type is basically similar to that of the fixed type.

[0003] An existing drawer-type double-sided switch cabinet (Announcement No.: CN204720868U) has at least the following disadvantages: the drawer units of the above patent are evenly installed on opposite sides of the switch cabinet. Since electrical components need to be installed inside the drawer units, some electrical components are heavy. When operators need to pull out the drawer units to inspect and maintain the electrical components inside, some overweight drawer units are prone to fall due to their own excessive weight, making it difficult for operators to hold them firmly when they are pulled out of the cabinet, causing damage to the electrical components inside. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a double-drawer switch cabinet.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A double-drawer switch cabinet comprises a cabinet body, a plurality of pull-out drawer units are installed at the front and rear of the cabinet body, two sets of lifting mechanisms are installed at the sides of the cabinet body, the lifting mechanism comprises an electric lifting slide fixedly installed on the side of the cabinet body, a cantilever is fixedly installed at the movable end of the electric lifting slide, a door-shaped frame is fixedly installed on the outer surface of the cantilever, support rails are fixedly installed at both end portions of the door-shaped frame, slots matching the support rails are provided on the opposite side sides of the drawer unit, a support plate which can slide up and down is installed on the inner wall of the drawer unit, a mounting plate is fixedly installed on the upper surface of the support plate close to the rear side plate of the drawer unit, and a lifting mechanism is installed between the drawer unit and the support plate.

[0006] As a further solution of the present invention, the lifting mechanism includes two slide grooves symmetrically opened on the lower surface of the pallet, and the inner wall of each of the slide grooves is symmetrically and slidably installed with two sliders, and the outer surface of each slider is rotatably installed with a support rod, and the two support rods located on the same side are arranged crosswise with each other, and the two support rods are rotatably installed with each other, and a movable block is rotatably installed at the end of each support rod away from the slider, and the movable block is slidably installed with the bottom wall of the drawer unit, and a connecting strip is fixedly installed between the corresponding two movable blocks arranged on the opposite sides, and a lifting component is installed between the interior of the drawer unit and the connecting strip.

[0007] As a further solution of the present invention, the lifting assembly includes a bidirectional screw rod that is rotatably installed between the outer surfaces of the opposite sides of the drawer unit. Both ends of the bidirectional screw rod pass through the outer surface of the connecting bar and are threadedly connected thereto. A driving assembly is installed between the drawer unit and the bidirectional screw rod.

[0008] As a further solution of the present invention, the driving assembly includes a driven bevel gear fixedly mounted on one end of a bidirectional screw rod, a support block is fixedly mounted on the outside of the drawer unit, a transmission shaft is rotatably mounted through the outer surface of the support block, an active bevel gear is fixedly mounted on one end of the transmission shaft, the active bevel gear is meshed with the driven bevel gear, and a transmission assembly is installed between the transmission shaft and the support rail.

[0009] As a further solution of the present invention, the transmission assembly includes a rotating shaft which passes through and is rotatably installed on the outer surface of the support block, a transmission gear is fixedly installed on one end of the rotating shaft, and pulleys are fixedly installed on the other end of the rotating shaft and the outer surface of the transmission shaft, and belts are sleeved on the outer surfaces of the two pulleys, and a transmission rack matching the transmission gear is fixedly installed on the outer surface of the support rail away from the cabinet.

[0010] As a further solution of the present invention, a deceleration assembly is installed on the outer surface of the adjacent side of the two support rails, and the deceleration assembly includes a mounting groove opened on the side of the support rail, and a spring is fixedly installed on the inner wall of the mounting groove close to one end of the cabinet.

[0011] As a further solution of the present invention, one end of the support rail away from the cabinet is threadedly connected to a limiting ring.

[0012] As a further solution of the present invention, a protective cover is fixedly installed on the outer side of the drawer unit, and the transmission assembly is installed inside the protective cover.

[0013] As a further solution of the present invention, the cabinet body and the drawer unit are both made of cold-rolled steel plates.

[0014] The beneficial effects of the present invention are: 1. The movable end of the electric lifting slide drives the cantilever and the door frame to move downward, so that the support rail installed on the door frame drops to the side slot of the drawer unit to be taken out. At this time, the maintenance personnel disconnect the power supply of the drawer unit and unlock it from the cabinet. Pull the drawer unit outwards through the handle and insert the support rail into the slots on both sides of the drawer unit. The support rail can carry the drawer unit to prevent the drawer unit from falling due to its own weight when it is pulled out of the cabinet, causing damage to the electrical components inside it. 2. When the drawer unit is fully pulled out, the electric lifting slide will lift the drawer unit to a suitable height, making it convenient for operators to inspect and repair the electrical components in the drawer unit; 3. After the drawer unit is completely pulled out onto the support rail, continue to pull the drawer unit so that the driving assembly drives the two-way screw to rotate, and the two-way screw drives the two connecting strips to move closer to each other, so that the connecting strip drives the corresponding bottom ends of the support rods to close through the movable blocks. Since the two support rods on the same side are rotatably installed, the slider installed on the top of the support rod can slide in the slide groove opened on the bottom wall of the support plate, thereby lifting the support plate and the mounting plate as a whole to a certain height, so that the electrical components installed on the support plate and the mounting plate extend out of the drawer unit, thereby increasing the operating space for the electrical components and facilitating the operator to perform maintenance operations on the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of a double-drawer switch cabinet proposed by the present invention; Figure 2 This is a schematic diagram of the rear structure of a double-drawer switch cabinet proposed by the present invention; Figure 3 A schematic diagram of a door frame structure of a double-drawer switch cabinet proposed by the present invention; Figure 4 This is a schematic diagram of the front structure of a drawer unit of a double-drawer switch cabinet proposed by the present invention; Figure 5 This is a schematic diagram of the rear structure of a drawer unit of a double-drawer switch cabinet proposed by the present invention; Figure 6 A schematic diagram of the bottom structure of a support plate of a double-drawer switch cabinet proposed by the present invention; Figure 7 A schematic diagram of a support rail structure of a double-drawer switch cabinet proposed by the present invention; Figure 8 for Figure 3 A magnified view of the structure at center; Fig. 9 for Figure 4 A magnified view of the structure at B in the middle; Fig.10 for Figure 4 A magnified view of the structure at C in the middle; Fig.11 for Figure 6 Enlarged view of the structure at point D in the middle.

[0016] In the figure: 1. cabinet; 2. drawer unit; 3. electric lifting slide; 4. cantilever; 5. door frame; 6. support rail; 7. slot; 8. support plate; 9. mounting plate; 10. slide groove; 11. slider; 12. support rod; 13. movable block; 14. connecting strip; 15. two-way screw; 16. driven bevel gear; 17. transmission shaft; 18. driving bevel gear; 19. support block; 20. transmission gear; 21. pulley; 22. belt; 23. transmission rack; 24. limit ring; 25. mounting groove; 26. spring; 27. protective cover. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] Refer to the attached Figure 1 -Attached Fig.11 A double-drawer switch cabinet comprises a cabinet body 1, on which a main circuit dynamic plug-in and secondary static and dynamic parts are installed; a plurality of drawer units 2 that can be pulled out are installed at the front and rear of the cabinet body 1, and a double-sided drawer unit 2 is designed so that the cabinet body 1 can accommodate more drawer units 2 in the same space, thereby improving space utilization; the drawer unit 2 adopts a modular and standardized design, which is convenient for quick replacement and maintenance, thereby reducing maintenance costs. This design also improves the flexibility and scalability of the equipment; two sets of lifting mechanisms are installed on the side of the cabinet 1, and the lifting mechanism includes an electric lifting slide 3 fixedly installed on the side of the cabinet 1, and a cantilever 4 is fixedly installed on the movable end of the electric lifting slide 3, and a door frame 5 is fixedly installed on the outer surface of the cantilever 4. Both ends of the door frame 5 are fixedly installed with support rails 6, and the opposite sides of the drawer unit 2 are provided with card grooves 7 matching the support rails 6. The inner wall of the drawer unit 2 is installed with a support plate 8 that can slide up and down, and a mounting plate 9 is fixedly installed on the upper surface of the support plate 8 near the rear side plate of the drawer unit 2, and a lifting mechanism is installed between the drawer unit 2 and the support plate 8.

[0020] When in use, the movable end of the electric lifting slide 3 drives the cantilever 4 and the door frame 5 to move downward, so that the support rail 6 installed on the door frame 5 drops to the side slot 7 of the drawer unit 2 to be taken out. At this time, the maintenance personnel disconnect the power supply of the drawer unit 2 and unlock it from the cabinet 1, and pull the drawer unit 2 outward by the handle to insert the support rail 6 into the slot 7 on both sides of the drawer unit 2, so that the support rail 6 can carry the drawer unit 2 to prevent the drawer unit 2 from falling when being pulled out of the cabinet 1 due to its own heavy weight, causing damage to the electrical components inside it; when the drawer unit 2 is completely pulled out, the electric lifting slide 3 lifts the drawer unit 2 to a suitable height, which is convenient for the operator to repair the electrical components in the drawer unit 2.

[0021] In this embodiment, the lifting mechanism includes two slide grooves 10 symmetrically opened on the lower surface of the support plate 8, and the inner wall of each slide groove 10 is symmetrically slidably installed with two sliders 11, and the outer surface of each slider 11 is rotatably installed with a support rod 12, and the two support rods 12 located on the same side are arranged crosswise, and the two support rods 12 are rotatably installed with each other, and the end of each support rod 12 away from the slider 11 is rotatably installed with a movable block 13, and the movable block 13 is slidably installed with the bottom wall of the drawer unit 2, and a connecting strip 14 is fixedly installed between the corresponding two movable blocks 13 arranged on the opposite sides, and a lifting component is installed between the interior of the drawer unit 2 and the connecting strip 14, and the lifting component includes a bidirectional screw rod 15 that penetrates and rotatably installs between the outer surfaces of the opposite sides of the drawer unit 2, and both ends of the bidirectional screw rod 15 penetrate the outer surface of the connecting strip 14 and are threadedly connected with it. A driving assembly is installed between the element 2 and the bidirectional screw rod 15, and the driving assembly includes a driven bevel gear 16 fixedly installed on one end of the bidirectional screw rod 15, a support block 19 is fixedly installed on the outside of the drawer unit 2, and a transmission shaft 17 is rotatably installed on the outer surface of the support block 19, and an active bevel gear 18 is fixedly installed on one end of the transmission shaft 17, and the active bevel gear 18 is meshed with the driven bevel gear 16, and a transmission assembly is installed between the transmission shaft 17 and the support rail 6, and the transmission assembly includes a rotating shaft rotatably installed on the outer surface of the support block 19, and a transmission gear 20 is fixedly installed on one end of the rotating shaft, and pulleys 21 are fixedly installed on the other end of the rotating shaft and the outer surface of the transmission shaft 17, and belts 22 are sleeved on the outer surfaces of the two pulleys 21, and a transmission rack 23 matching the transmission gear 20 is fixedly installed on the outer surface of the support rail 6 away from the cabinet 1.

[0022] After the drawer unit 2 is completely pulled out onto the support rail 6, the drawer unit 2 is continued to be pulled, and the transmission gear 20 installed on the side of the drawer unit 2 will mesh with the transmission rack 23, so that the transmission gear 20 can drive the transmission shaft 17 to rotate through the pulley 21 and the belt 22, so that the transmission shaft 17 drives the active bevel gear 18 to rotate, and the active bevel gear 18 drives the driven bevel gear 16 meshed with it to rotate, so that the driven bevel gear 16 drives the two-way screw rod 15 to rotate, so that the two-way screw rod 15 drives the two connecting bars 14 to move closer to each other, so that the connecting bar 14 drives the corresponding bottom end of the support rod 12 to close through the movable block 13, and because the two support rods 12 on the same side are rotatably installed, the slider 11 installed on the top of the support rod 12 can slide in the slide groove 10 provided on the bottom wall of the support plate 8, so that the support plate 8 and the mounting plate 9 are lifted as a whole to a certain height, so that the electrical components installed on the support plate 8 and the mounting plate 9 extend out of the drawer unit 2, increasing the operating space for the electrical components, so that the operator can perform maintenance operations on the electrical components.

[0023] In this embodiment, the outer surfaces of the adjacent sides of the two support rails 6 are both installed with a deceleration assembly, which includes a mounting groove 25 opened on the side of the support rail 6, and a spring piece 26 is fixedly installed on the inner wall of the mounting groove 25 close to one end of the cabinet 1.

[0024] When the drawer unit 2 is pulled to the spring piece 26, the spring piece 26 protruding from the side of the support rail 6 will abut against the side of the drawer unit 2, increasing the resistance when the drawer unit 2 is pulled out to the end of the support rail 6, avoiding the drawer unit 2 from colliding with the limit ring 24 installed at the end of the support rail 6 and causing damage to the electrical components inside.

[0025] In this embodiment, the end of the support rail 6 away from the cabinet 1 is threadedly connected to the limit ring 24. By unscrewing the limit ring 24, the drawer unit 2 can be removed from the support rail 6, which facilitates the replacement of the drawer unit 2 as a whole.

[0026] In this embodiment, a protective cover 27 is fixedly installed on the outer side of the drawer unit 2, and the transmission assembly is installed inside the protective cover 27. The protective cover 27 can protect the parts of the transmission assembly.

[0027] In this embodiment, the cabinet 1 and the drawer unit 2 are both made of cold-rolled steel plates.

[0028] From the above description, it can be seen that the above-mentioned embodiment of the present invention achieves the following technical effects: when it is necessary to inspect and maintain the electrical components in one of the drawer units 2, the movable end of the electric lifting slide 3 drives the cantilever 4 and the door frame 5 to move downward, so that the support rail 6 installed on the door frame 5 drops to the side slot 7 of the drawer unit 2 to be taken out. At this time, the maintenance personnel disconnect the power supply of the drawer unit 2 and unlock it from the cabinet 1, and pull the drawer unit 2 outward by the handle so that the support rail 6 is inserted into the slot 7 on both sides of the drawer unit 2, so that the support rail 6 can carry the drawer unit 2, thereby preventing the drawer unit 2 from falling when being drawn out of the cabinet 1 due to its own excessive weight, causing damage to the electrical components inside it; when the drawer unit 2 is completely drawn out, the electric lifting slide 3 lifts the drawer unit 2 to a suitable height, so that the operator can easily inspect the electrical components in the drawer unit 2; After the drawer unit 2 is completely pulled out onto the support rail 6, the drawer unit 2 is continued to be pulled, and the transmission gear 20 installed on the side of the drawer unit 2 will mesh with the transmission rack 23, so that the transmission gear 20 can drive the transmission shaft 17 to rotate through the pulley 21 and the belt 22, so that the transmission shaft 17 drives the active bevel gear 18 to rotate, and the active bevel gear 18 drives the driven bevel gear 16 meshed with it to rotate, so that the driven bevel gear 16 drives the two-way screw rod 15 to rotate, so that the two-way screw rod 15 drives the two connecting bars 14 to move closer to each other, so that the connecting bar 14 drives the corresponding bottom end of the support rod 12 to close through the movable block 13, and because the two support rods 12 on the same side are rotatably installed, the slider 11 installed on the top of the support rod 12 can slide in the slide groove 10 provided on the bottom wall of the support plate 8, so that the support plate 8 and the mounting plate 9 are lifted as a whole to a certain height, so that the electrical components installed on the support plate 8 and the mounting plate 9 extend out of the drawer unit 2, increasing the operating space for the electrical components, so that the operator can perform maintenance operations on the electrical components.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A double-drawer switch cabinet, comprising a cabinet body (1), wherein a plurality of drawer units (2) are installed at the front and rear of the cabinet body (1), characterized in that: Two groups of lifting mechanisms are installed on the side of the cabinet (1), and the lifting mechanism includes an electric lifting slide (3) fixedly installed on the side of the cabinet (1), a cantilever (4) fixedly installed on the movable end of the electric lifting slide (3), a door frame (5) fixedly installed on the outer surface of the cantilever (4), and support rails (6) fixedly installed on both ends of the door frame (5), and the opposite sides of the drawer unit (2) are provided with card slots (7) matching the support rails (6), and the inner wall of the drawer unit (2) is installed with a support plate (8) that can slide up and down, and a mounting plate (9) is fixedly installed on the upper surface of the support plate (8) close to the rear side plate of the drawer unit (2), and a lifting mechanism is installed between the drawer unit (2) and the support plate (8).

2. A double-drawer switch cabinet according to claim 1, characterized in that: The lifting mechanism comprises two slide grooves (10) symmetrically opened on the lower surface of the support plate (8), the inner wall of each slide groove (10) is symmetrically slidably mounted with two sliders (11), the outer surface of each slider (11) is rotatably mounted with a support rod (12), the two support rods (12) located on the same side are arranged crosswise with each other, and the two support rods (12) are rotatably mounted with each other, and the end of each support rod (12) away from the slider (11) is rotatably mounted with a movable block (13), the movable block (13) is slidably mounted with the bottom wall of the drawer unit (2), and a connecting strip (14) is fixedly mounted between the two corresponding movable blocks (13) arranged on the opposite sides, and a lifting component is installed between the interior of the drawer unit (2) and the connecting strip (14).

3. A double-drawer switch cabinet according to claim 2, characterized in that: The lifting assembly comprises a bidirectional screw rod (15) which is rotatably installed between the outer surfaces of two opposite sides of the drawer unit (2), both ends of the bidirectional screw rod (15) being inserted through the outer surface of the connecting strip (14) and being threadedly connected thereto, and a driving assembly is installed between the drawer unit (2) and the bidirectional screw rod (15).

4. A double-drawer switch cabinet according to claim 3, characterized in that: The driving assembly comprises a driven bevel gear (16) fixedly mounted on one end of a bidirectional screw rod (15); a support block (19) is fixedly mounted on the outside of the drawer unit (2); a transmission shaft (17) is rotatably mounted through the outer surface of the support block (19); a driving bevel gear (18) is fixedly mounted on one end of the transmission shaft (17); the driving bevel gear (18) is meshed with the driven bevel gear (16); and a transmission assembly is mounted between the transmission shaft (17) and the support rail (6).

5. A double-drawer switch cabinet according to claim 4, characterized in that: The transmission assembly comprises a rotating shaft which penetrates and is rotatably mounted on the outer surface of a support block (19); a transmission gear (20) is fixedly mounted on one end of the rotating shaft; a pulley (21) is fixedly mounted on the other end of the rotating shaft and the outer surface of the transmission shaft (17); belts (22) are sleeved on the outer surfaces of the two pulleys (21); and a transmission rack (23) matching the transmission gear (20) is fixedly mounted on the outer surface of one end of the support rail (6) away from the cabinet (1).

6. A double-drawer switch cabinet according to claim 1, characterized in that: A deceleration assembly is installed on the outer surface of the adjacent side of the two support rails (6), and the deceleration assembly includes a mounting groove (25) opened on the side of the support rail (6), and a spring piece (26) is fixedly installed on the inner wall of the mounting groove (25) close to one end of the cabinet (1).

7. A double-drawer switch cabinet according to claim 1, characterized in that: An end of the support rail (6) away from the cabinet (1) is threadedly connected to a limit ring (24).

8. The double-drawer switch cabinet according to claim 5, characterized in that: A protective cover (27) is fixedly mounted on the outside of the drawer unit (2), and the transmission assembly is mounted inside the protective cover (27).

9. The double-drawer switch cabinet according to claim 1, characterized in that: The cabinet body (1) and the drawer unit (2) are both made of cold-rolled steel plates.

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