Drawer guiding device of electric appliance switch cabinet

By designing buffer and limit components in the electrical switch cabinet, the problem of drawer collision when retracting is solved, extending the drawer's service life and improving stability and safety.

CN224097286UActive Publication Date: 2026-04-07HAITER ELECTROMECHANICAL ENG TECH (MAANSHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The drawers of existing electrical switch cabinets are prone to collisions at the front limit part when they are retracted due to the improper placement of the buffer springs, which shortens the life of the drawers.

Method used

Design a drawer guide device for an electrical switch cabinet, which employs a buffer component and a limit component. The buffer component provides indirect buffering through a combination structure of a slide rod, a buffer spring, and a pulley, while the limit component locks the drawer in place using a knob and a limit pin.

Benefits of technology

It extends the lifespan of the drawers, prevents drawers from not closing properly, and improves the stability and safety of the drawers.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224097286U_ABST
    Figure CN224097286U_ABST
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Abstract

The utility model provides an electric appliance switch cabinet drawer guiding device comprising a switch cabinet body, a plurality of movable grooves are arranged in the switch cabinet body, a drawer body is inserted in each movable groove, and a buffer assembly is arranged on the rear side in each movable groove; the buffering assembly comprises a fixing frame, a sliding rod, a first limiting plate, a buffering spring and a first pulley, and the fixing frame is fixedly installed on the rear side of the movable groove. Through the arrangement of the buffer assembly, after a user pushes the drawer body back into the movable groove, the slope plate on the rear side of the drawer body jacks up the first pulley on the upper portion in the moving process, the buffer spring on the outer portion of the sliding rod is compressed along with the movement of the first pulley, and therefore downward extrusion acting force is exerted on the first pulley; and compared with a traditional buffering assembly, the buffering assembly has the advantages that buffering protection on the drawer body is better, and the service life of the drawer body is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to switchgear drawer field especially relates to a kind of electric switchgear drawer guiding device. BACKGROUND

[0002] The switchgear drawer guiding device is a device for ensuring the stable and smooth operation of the switchgear drawer during the pushing or pulling process. Its main function is to reduce the friction and shaking of the drawer during the movement process through the design of various mechanical structures, to ensure its accurate and safe parking at the designated location.

[0003] The existing patent with the patent number CN222230199U discloses a drawer type switchgear auxiliary guiding device, which comprises a base, a cabinet body fixedly connected to the upper part of the base, an oil storage tank fixedly connected to the right side of the upper part of the base, an oil delivery assembly arranged on the left side of the upper part of the cabinet body, a plurality of oil guiding grooves formed in the cabinet body, a drawer body slidingly connected to the inside of the cabinet body, rollers fixedly connected to the lower part of the drawer body, oil baffle plates fixedly connected to the front side and the left and right sides of the lower part of the drawer body, a handle fixedly connected to the front side of the drawer body, and a plurality of buffer assemblies uniformly arranged on the rear side of the inside of the cabinet body. In the utility model, the auxiliary guiding device can greatly improve the opening and closing efficiency of the switchgear drawer, reduce the opening and closing operation difficulty and improve the service life of the drawer type switchgear by reducing the friction force through the cooperation between the oil pump, the oil suction pipe, the oil delivery pipe and the liquid guiding pipe and other structures.

[0004] The utility model solves the technical problems of overcoming the defects of the prior art. The existing electric switchgear is provided with a buffer spring inside the switchgear to buffer the drawer. However, since the buffer spring is arranged at the rear of the drawer, the drawer will be pushed out by the buffer spring when it is pulled back into the switchgear, causing the collision of the front side limiting part of the drawer, and leading to the decrease of the service life of the drawer after long-term use. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model adopts the technical scheme of an electric switchgear drawer guiding device, which comprises a switchgear body, a plurality of movable grooves formed in the inside of the switchgear body, a drawer body inserted into each movable groove, and a buffer assembly arranged on the rear side of each movable groove.

[0006] The buffer assembly comprises a fixing frame, a sliding rod, a first limiting plate, a buffer spring and a first pulley, the fixing frame is fixedly installed at the rear side of the movable groove, a sliding rod is arranged on the surface of the fixing frame, the first limiting plate is fixedly installed on the outer portion of the sliding rod, the buffer spring is sleeved on the outer portion of the sliding rod, the first pulley is fixedly installed at the bottom of the sliding rod, the buffer spring is located between the bottom of the first limiting plate and the top of the first pulley, and the slope plate is fixedly installed at the rear side of the drawer body.

[0007] Optionally, the top of each movable groove is fixedly installed with a positioning block, the top of the sliding rod penetrates through and extends to the top of the fixing frame, and the top of the sliding rod is fixedly installed with a positioning rod, and the top end of the positioning rod is inserted into the positioning block.

[0008] Optionally, the bottom of each movable groove is provided with two groups of sliding grooves, and the bottom of each drawer body is fixedly installed with two second pulleys, and each second pulley is slidably arranged in the corresponding sliding groove.

[0009] Optionally, the front side of the switch cabinet body is provided with a plurality of oil injection holes, and each oil injection hole is in communication with the corresponding sliding groove.

[0010] Optionally, the front side of each drawer body is fixedly installed with a limiting assembly, the limiting assembly comprises a fixed plate, a movable rod, an extension spring, a second limiting plate and a limiting bolt, the fixed plate is fixedly installed at the front side of the drawer body, the movable rod is inserted into the front side of the fixed plate, the second limiting plate is fixedly installed at the rear end of the movable rod, and the front side of the second limiting plate is abutted to the inner side of the fixed plate.

[0011] Optionally, the movable rod is sleeved with the extension spring, the front end of the movable rod is fixedly installed with a knob, the rear end of the movable rod is fixedly installed with the limiting bolt, the front side of each limiting block is provided with an opening matched with the limiting bolt, and the front side of each limiting block is provided with a locking groove.

[0012] Compared with the prior art, the beneficial effects of the utility model include:

[0013] 1. By setting the buffer assembly, after the drawer body is pushed back to the inside of the movable groove, the slope plate at the rear side of the drawer body lifts the first pulley upward in the moving process, as the first pulley moves, the buffer spring on the outer portion of the sliding rod is compressed, thereby exerting a downward pressing force on the first pulley, thereby indirectly buffering the drawer body, compared with the traditional buffer assembly, the buffering protection of the drawer body is better, and the service life of the drawer body is prolonged.

[0014] 2. By setting a limit component, after the drawer body is retracted into the switch cabinet body each time, the user can lock it by inserting the limit pin into the lock groove through the knob. This requires the knob to be turned in advance when pulling out the drawer body, thereby preventing the drawer body from not being closed tightly and thus playing a locking and protection role for the drawer body. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 The schematic diagram shows an overall structural schematic diagram according to one embodiment of the present invention;

[0017] Figure 2 The schematic diagram shows an overall internal side cross-sectional view according to one embodiment of the present invention;

[0018] Figure 3 The illustration schematically shows a method proposed according to one embodiment of the present invention. Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 The schematic diagram shows a left-side cross-sectional view of the overall structure according to one embodiment of the present invention;

[0020] Figure 5 The schematic diagram shows a left-side cross-sectional view of another overall structure according to one embodiment of the present invention;

[0021] Figure 6 The illustration schematically shows a method proposed according to one embodiment of the present invention. Figure 5 Enlarged structural diagram at point A in the middle.

[0022] Numbering on the map:

[0023] 1. Switch cabinet body; 2. Movable groove; 3. Drawer body; 4. Fixing frame; 5. Slide rod; 6. First limiting plate; 7. Buffer spring; 8. First pulley; 9. Slope plate; 10. Positioning block; 11. Positioning rod; 12. Slide groove; 13. Second pulley; 14. Oil injection hole; 15. Fixing plate; 16. Movable rod; 17. Telescopic spring; 18. Second limiting plate; 19. Limiting pin; 20. Knob; 21. Limiting block; 22. Lock groove; 23. Opening. Detailed Implementation

[0024] It is easy to understand that according to the technical scheme of the utility model, a plurality of structure modes and implementation modes which can be replaced with each other can be proposed by the general skilled in the art without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole of the utility model or regarded as the limitation or restriction of the technical scheme of the utility model.

[0025] According to an embodiment of the utility model Figures 1-6 It is shown. A drawer guiding device of an electrical switch cabinet, comprising: a switch cabinet body 1, a plurality of movable grooves 2 are formed in the inside of the switch cabinet body 1, a drawer body 3 is inserted in each movable groove 2, and a buffer assembly is arranged at the rear side in each movable groove 2.

[0026] The buffer assembly comprises a fixing frame 4, a sliding rod 5, a first limiting plate 6, a buffer spring 7 and a first pulley 8, the fixing frame 4 is fixedly installed at the rear side of the movable groove 2, the sliding rod 5 is slidably arranged on the surface of the fixing frame 4, the first limiting plate 6 is fixedly installed on the outside of the sliding rod 5, the buffer spring 7 is sleeved on the outside of the sliding rod 5, the first pulley 8 is fixedly installed at the bottom of the sliding rod 5, and the buffer spring 7 is located between the bottom of the first limiting plate 6 and the top of the first pulley 8, a slope plate 9 is fixedly installed at the rear side of the drawer body 3, and the first pulley 8 is slidably arranged on the surface of the slope plate 9.

[0027] A positioning block 10 is fixedly installed at the top of each movable groove 2, the sliding rod 5 penetrates through and extends to the top of the fixing frame 4, a positioning rod 11 is fixedly installed at the top of the sliding rod 5, and the top end of the positioning rod 11 is inserted into the inside of the positioning block 10.

[0028] The positioning block 10 and the positioning rod 11 are used for limiting and protecting the movement of the sliding rod 5.

[0029] Two groups of sliding grooves 12 are formed at the bottom of each movable groove 2, two second pulleys 13 are fixedly installed at the bottom of each drawer body 3, and each second pulley 13 is slidably arranged in the corresponding sliding groove 12.

[0030] A plurality of oil injection holes 14 are formed at the front side of the switch cabinet body 1, and each oil injection hole 14 is in communication with the inside of the corresponding sliding groove 12.

[0031] The user can inject oil into the sliding groove 12 through the oil injection hole 14, so as to lubricate the second pulley 13, and the drawer body 3 is more convenient to pull out.

[0032] The front side of each drawer body 3 is fixedly installed with a limiting assembly, the limiting assembly comprises a fixed plate 15, a movable rod 16, an extension spring 17, a second limiting plate 18 and a limiting bolt 19, the fixed plate 15 is fixedly installed on the front side of the drawer body 3, the movable rod 16 is inserted on the front side of the fixed plate 15, the second limiting plate 18 is fixedly installed on the outer rear end of the movable rod 16, and the front side of the second limiting plate 18 is abutted to the inner side of the fixed plate 15;

[0033] The extension spring 17 and the second limiting plate 18 are used for limiting the position of the movable rod 16 and the limiting bolt 19.

[0034] The outer side of the movable rod 16 is sleeved with the extension spring 17, the front end of the movable rod 16 is fixedly installed with a knob 20, the rear end of the movable rod 16 is fixedly installed with the limiting bolt 19, the front side of the switch cabinet body 1 is fixedly installed with a plurality of limiting blocks 21, the inner side of each limiting block 21 is provided with a locking groove 22, and the front side of each locking groove 22 is provided with an opening 23 matched with the limiting bolt 19;

[0035] The locking groove 22 is used for the movable space of the limiting bolt 19, and the limiting bolt 19 can enter the inner side of the locking groove 22 through the opening 23.

[0036] In the embodiment, first, when the drawer body 3 is opened, the knob 20 needs to be rotated, the rotation of the knob 20 drives the limiting bolt 19 to rotate through the movable rod 16, after the limiting bolt 19 is rotated to the front of the opening 23, the drawer body 3 is unlocked, and the drawer body 3 can be pulled out for operation, when the drawer body 3 is pushed back to the inside of the switch cabinet body 1, the slope plate 9 on the rear side of the drawer body 3 lifts the upper first pulley 8 in the moving process, along with the movement of the first pulley 8, the buffer spring 7 outside the slide rod 5 is compressed, so as to generate a downward extrusion force on the first pulley 8, thereby indirectly buffering the drawer body 3, compared with the traditional buffer assembly, the buffering protection of the drawer body 3 is better, through the limiting assembly, after the drawer body 3 is pulled back to the inside of the switch cabinet body 1 each time, the limiting bolt 19 can be inserted into the locking groove 22 through the knob 20, so as to be locked, so that the knob 20 needs to be rotated in advance when the drawer body 3 is pulled out subsequently, thereby avoiding the case that the drawer body 3 is not closed tightly, thereby achieving the locking protection of the drawer body 3.

[0037] The technical range of the utility model is not limited to the contents in the above description, and those skilled in the art can make various deformations and modifications to the above embodiment without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection range of the utility model.

Claims

1. A drawer guide device for an electrical switch cabinet, characterized in that, include: The switch cabinet body (1) has multiple movable slots (2) inside, each movable slot (2) is fitted with a drawer body (3), and each movable slot (2) has a buffer component on the rear side inside. The buffer assembly includes a fixed frame (4), a slide rod (5), a first limiting plate (6), a buffer spring (7), and a first pulley (8). The fixed frame (4) is fixedly installed on the rear side of the movable slot (2), and the slide rod (5) is slidably arranged on the surface of the fixed frame (4). The first limiting plate (6) is fixedly installed on the outside of the slide rod (5), and the buffer spring (7) is sleeved on the outside of the slide rod (5). The first pulley (8) is fixedly installed at the bottom of the slide rod (5). The buffer spring (7) is located between the bottom of the first limiting plate (6) and the top of the first pulley (8). A ramp (9) is fixedly installed on the rear side of the drawer body (3), and the first pulley (8) is slidably arranged on the surface of the ramp (9).

2. The drawer guide device for an electrical switch cabinet according to claim 1, characterized in that, Each of the movable slots (2) is fixedly installed with a positioning block (10) at the top. The top of the slide rod (5) extends through and to the top of the fixed frame (4). A positioning rod (11) is fixedly installed at the top of the slide rod (5). The top of the positioning rod (11) is inserted into the positioning block (10).

3. The drawer guide device for an electrical switch cabinet according to claim 1, characterized in that, Each of the movable slots (2) has two sets of sliding grooves (12) at the bottom, and each of the drawer bodies (3) has two second pulleys (13) fixedly installed at the bottom. Each second pulley (13) is slidably disposed inside the corresponding sliding groove (12).

4. The drawer guide device for an electrical switch cabinet according to claim 1, characterized in that, The switch cabinet body (1) has multiple oil injection holes (14) on the front side, and each oil injection hole (14) is connected to the interior of the corresponding slide groove (12).

5. The drawer guide device for an electrical switch cabinet according to claim 1, characterized in that, Each drawer body (3) is fixedly installed with a limiting component on the front side. The limiting component includes a fixed plate (15), a movable rod (16), a telescopic spring (17), a second limiting plate (18), and a limiting pin (19). The fixed plate (15) is fixedly installed on the front side of the drawer body (3), and the movable rod (16) is inserted into the front side of the fixed plate (15). The second limiting plate (18) is fixedly installed on the rear end of the movable rod (16), and the front side of the second limiting plate (18) abuts against the inner side of the fixed plate (15).

6. The drawer guide device for an electrical switch cabinet according to claim 5, characterized in that, The movable rod (16) is fitted with a telescopic spring (17), and a knob (20) is fixedly installed at the front end of the movable rod (16). A limit pin (19) is fixedly installed at the rear end of the movable rod (16). Multiple limit blocks (21) are fixedly installed on the front side of the switch cabinet body (1). Each limit block (21) has a locking groove (22) inside, and each locking groove (22) has an opening (23) on the front side that matches the limit pin (19).

Citation Information

Patent Citations

  • Drawer type switch cabinet auxiliary guiding device

    CN222230199U