A long service life draw-out switchgear

Abstract

The utility model discloses a long service life's draw -out switch cabinet, including switch cabinet frame, the drawer of sliding installation in switch cabinet frame and install the side plate on the outside of switch cabinet frame, and the left and right sides of switch cabinet frame are fixed from top to bottom and install upper rail and lower rail, the inside of upper rail is equipped with the guide slot, and the one side of upper rail is provided with the avoidance slot, and the bottom rotation of upper rail is installed with a plurality of equidistance distribution's cylinder, the left and right sides of drawer top all rotationally install the upper gyro wheel in the guide slot, and the left and right sides of drawer bottom all rotationally install first lower gyro wheel and second lower gyro wheel, the utility model discloses the double guide rail structure of setting lower rail and upper rail can effectively disperse the weight of drawer, avoid the deformation of single guide rail long -term bearing excessive weight, can also play the double orientation effect to drawer simultaneously, thereby make drawer movement more stable, ensure that main circuit plug -in can accurate butt joint.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, specifically a withdrawable switch cabinet with a long service life. Background Technology

[0002] A withdrawable switchgear is a low-voltage power distribution device that houses electrical components in a removable drawer. The drawer is connected to the cabinet via guide rails. Its modular design enables independent operation and maintenance of functional units, making it suitable for industrial and building applications where power supply reliability is critical.

[0003] Some drawers in existing pull-out switchgear are quite heavy. After long-term use, the guide rails are prone to deformation and wear. This can not only cause the drawers to become stuck or even jammed, affecting maintenance operations, but may also prevent the main circuit plugs from being accurately connected, leading to poor contact, local high temperature and burning of components, seriously threatening the normal operation of the switchgear. Utility Model Content

[0004] The purpose of this utility model is to provide a withdrawable switch cabinet with a long service life to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pull-out switch cabinet with a long service life, comprising a switch cabinet frame, a drawer slidably installed within the switch cabinet frame, and a side plate installed on the outside of the switch cabinet frame. An upper guide rail and a lower guide rail are fixedly installed on the left and right sides of the switch cabinet frame from top to bottom, respectively. The upper guide rail has a guide groove inside and an clearance groove on one side. Multiple equally spaced rollers are rotatably installed at the bottom of the upper guide rail. Upper rollers located within guide grooves are rotatably installed on the left and right sides of the top of the drawer. A first lower roller and a second lower roller are rotatably installed on the left and right sides of the bottom of the drawer. Both the first and second lower rollers are located inside the lower guide rail.

[0006] As a preferred embodiment of this utility model, a partition is fixedly connected to the inner side of the switch cabinet frame, and the lower guide rail is fixed to the top of the partition.

[0007] As a preferred embodiment of this utility model, the bottom of the drawer is symmetrically provided with protruding edges, the bottom of the protruding edges is provided with a stop block, and the inner sidewall of the lower guide rail is provided with a limiting block.

[0008] In a preferred embodiment of this utility model, the clearance groove is connected to the guide groove.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: The dual guide rail structure of the lower and upper guide rails can effectively distribute the weight of the drawer, preventing deformation of a single guide rail due to excessive weight over a long period of time. At the same time, it can also provide dual guidance for the drawer, making the drawer more stable in movement and ensuring that the main circuit plug-in can be accurately connected. In addition, the first and second lower rollers can distribute the weight of the drawer more evenly to the lower guide rail, further preventing deformation of the lower guide rail due to localized stress concentration, thereby extending the service life of the switch cabinet. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a schematic diagram of the structure of the side plate of this utility model after disassembly;

[0012] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0013] Figure 4 This is a three-dimensional structural diagram of the drawer of this utility model;

[0014] Figure 5 For practical purposes Figure 4 Enlarged view of point B in the middle;

[0015] Figure 6 This is a schematic diagram of the upper guide rail of this utility model;

[0016] Figure 7 This is a schematic diagram of the structure of the lower guide rail of this utility model.

[0017] In the diagram: 1. Switch cabinet frame; 2. Side panel; 3. Drawer; 4. Shelf; 5. Lower guide rail; 6. Upper guide rail; 7. Roller; 8. Limiting block; 9. Protruding edge; 10. Stop block; 11. First lower roller; 12. Second lower roller; 13. Upper roller; 14. Guide groove; 15. Clearance groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 7This utility model provides a technical solution: a long-life pull-out switch cabinet, including a switch cabinet frame 1, a drawer 3 slidably installed inside the switch cabinet frame 1, and a side plate 2 installed on the outside of the switch cabinet frame 1. An upper guide rail 6 and a lower guide rail 5 are fixedly installed on the left and right sides of the switch cabinet frame 1 from top to bottom, respectively. The lower guide rail 5 bears most of the weight of the drawer 3, and the upper guide rail 6 bears a small portion of the weight of the drawer 3. By distributing the weight of the drawer 3 with the two guide rails, excessive weight on a single guide rail is avoided, which could lead to deformation. The upper guide rail 6 has a guide groove 14 inside, which guides the upper roller 13, thereby making the movement of the drawer 3 more stable and ensuring precise docking of the main circuit connectors. A clearance groove 15 is provided on one side of the upper guide rail 6 to allow the upper roller 13 to pass. Multiple equally spaced rollers 7 are rotatably mounted on the bottom of the upper guide rail 6. The upper roller 13 contacts the rollers 7, and the rollers 7 can reduce the friction between them, making the drawer 3 move more smoothly. Upper rollers 13 located in guide grooves 14 are rotatably mounted on the left and right sides of the top of the drawer 3. First lower rollers 11 and second lower rollers 12 are rotatably mounted on the left and right sides of the bottom of the drawer 3. The first lower rollers 11 and second lower rollers 12 can be set to distribute the weight of the drawer 3 more evenly to the lower guide rail 5, preventing the lower guide rail 5 from deforming. The first lower rollers 11 and second lower rollers 12 are both located on the inner side of the lower guide rail 5.

[0020] The switch cabinet frame 1 has a partition 4 fixedly connected to its inner side. The partition 4 is used to support the lower guide rail 5 and further prevent the lower guide rail 5 from deforming. The lower guide rail 5 is fixed to the top of the partition 4.

[0021] The bottom of the drawer 3 is symmetrically provided with a raised edge 9, and the bottom of the raised edge 9 is provided with a stop block 10. The inner side wall of the lower guide rail 5 is provided with a limiting block 8. The limiting block 8 and the stop block 10 work together to limit the drawer 3 and prevent the drawer 3 from completely separating from the switch cabinet frame 1 during the process of pulling the drawer 3.

[0022] The clearance groove 15 is connected to the guide groove 14.

[0023] Specifically, when drawer 3 moves, the upper roller 13 rolls on the roller 7, and the first lower roller 11 and the second lower roller 12 roll on the inside of the lower guide rail 5. The weight of drawer 3 is distributed to the upper guide rail 6 and the lower guide rail 5, avoiding excessive weight on a single guide rail, which could cause deformation. The first lower roller 11 and the second lower roller 12 can distribute the weight of drawer 3 more evenly to the lower guide rail 5, preventing deformation of the lower guide rail 5. At the same time, the partition 4 provides support for the lower guide rail 5, further preventing deformation of the lower guide rail 5.

[0024] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-service-life withdrawable switchgear, comprising a switchgear frame (1), a drawer (3) slidably mounted within the switchgear frame (1), and a side panel (2) mounted on the outside of the switchgear frame (1), characterized in that: The switch cabinet frame (1) is fixedly installed with an upper guide rail (6) and a lower guide rail (5) from top to bottom on the left and right sides respectively. The upper guide rail (6) has a guide groove (14) inside and a clearance groove (15) on one side. Multiple rollers (7) are rotatably installed at the bottom of the upper guide rail (6). The drawer (3) has upper rollers (13) rotatably installed in the guide groove (14) on both the left and right sides of the top. The drawer (3) has a first lower roller (11) and a second lower roller (12) rotatably installed on both the left and right sides of the bottom. The first lower roller (11) and the second lower roller (12) are both located inside the lower guide rail (5).

2. The withdrawable switchgear with long service life according to claim 1, characterized in that: The inner side of the switch cabinet frame (1) is fixedly connected to a partition (4), and the lower guide rail (5) is fixed to the top of the partition (4).

3. The withdrawable switchgear with long service life according to claim 1, characterized in that: The bottom of the drawer (3) is symmetrically provided with protruding edges (9), and the bottom of the protruding edges (9) is provided with a stop block (10). The inner side wall of the lower guide rail (5) is provided with a limiting block (8).

4. The withdrawable switchgear with long service life according to claim 1, characterized in that: The clearance groove (15) is connected to the guide groove (14).

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