Low voltage draw-out switchgear

Abstract

The utility model relates to a low pressure draws out formula switch cabinet belongs to electric control cabinet technical field, including the cabinet body, the inside of cabinet body is provided with a plurality of mounting slots, the inside of mounting slot all slidingly connects has the drawer, both sides of drawer all rotatably connected with connecting piece b, the inside of connecting piece b all slidingly connects has connecting piece a, and the inner wall of mounting slot is rotatably connected with the one end of connecting piece a away from connecting piece b, and the inside of connecting piece a is provided with the sliding slot, and the inside of sliding slot slidingly connects has the positioning pin. The utility model has the beneficial effect that when the drawer is drawn to the limit position outside the cabinet body, the positioning pin will be inserted into the corresponding hole by the reaction force of the spring, thereby achieving the fixation between the connecting piece b and the connecting piece a, and through the cooperation of the connecting piece b and the connecting piece a, the weight of the drawer can be shared, so that the drawer is more stable and firm when being drawn out, thereby reducing the breaking phenomenon of the connecting part.

Description

Technical Field

[0001] This utility model relates to the field of electrical control cabinet technology, and in particular to a low-voltage withdrawable switch cabinet. Background Technology

[0002] Low-voltage withdrawable switchgear, as the core equipment of power distribution systems, is widely used in the field of power distribution and control. With the improvement of industrial automation and the diversification of electricity demand, higher requirements are placed on the reliability, flexibility and space utilization of switchgear. Currently, most mainstream products on the market adopt a modular design concept, which achieves rapid assembly and maintenance through the standardization of functional units.

[0003] Currently, maintenance work inside switch cabinets usually requires workers to pull the drawers out to their extreme positions outside the cabinet. However, relying solely on guide rails and slides makes it difficult to ensure a stable connection between the drawers and the cabinet, and the connection may even break, resulting in significant economic losses. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main purpose of this utility model is to provide a low-voltage withdrawable switch cabinet.

[0005] The technical solution of this utility model is as follows: A low-voltage withdrawable switch cabinet includes a cabinet body. Multiple mounting slots are provided inside the cabinet body. Drawers are slidably connected inside each mounting slot. Connectors b are rotatably connected to both sides of each drawer. Connectors a are slidably connected inside each connector b. The end of connector a away from connector b is rotatably connected to the inner wall of the mounting slot. A sliding groove is provided inside connector a. A positioning pin is slidably connected inside the sliding groove. A spring is fixedly connected between the positioning pin and the inner wall of the sliding groove. An insertion hole is provided inside connector b for use with the positioning pin, and the positioning pin is engaged in the insertion hole.

[0006] By adopting the above technical solution, the reaction force of the spring will push the positioning pin into the corresponding hole, thereby achieving the fixation between connector b and connector a. Furthermore, the cooperation between connector b and connector a can distribute the weight of the drawer pull-out part, making the drawer more stable when pulled out.

[0007] In a preferred embodiment, limiting components are provided on both sides of the connector b. The limiting components include limiting grooves formed on both sides of the connector b. Limiting posts are slidably connected inside the limiting grooves. The two limiting posts are fixedly connected to both sides of the connector a, respectively.

[0008] By adopting the above technical solution, the combined use of the limiting groove and the limiting post can play an important role in limiting the extension and retraction length of the connecting piece a.

[0009] In a preferred embodiment, the mounting slot is provided with a guide component, which includes guide rails fixedly connected to both sides of the drawer, and slide rails that cooperate with the guide rails are fixedly connected to both sides of the inner wall of the mounting slot.

[0010] By adopting the above technical solution, the drawer can be guided through the combined use of guide rails and slide rails, allowing the drawer to slide horizontally.

[0011] In a preferred embodiment, the guide rail engages with the slide rail, and the rear side of the drawer has wiring holes arranged in an array.

[0012] By adopting the above technical solution, it is convenient to connect cables and equipment.

[0013] In a preferred embodiment, the cabinet has a groove inside and below the mounting groove, and the bottom of the drawer is rotatably mounted with casters.

[0014] By adopting the above technical solution, the drawer can move along the guide rail, and the pulley under the drawer can bear the weight and reduce frictional resistance.

[0015] In a preferred embodiment, the pulley is rotatably connected inside the slot, and a selector switch is fixedly installed on the outside of the drawer.

[0016] By adopting the above technical solution, it is convenient for staff to switch circuits.

[0017] In a preferred embodiment, a handle is fixedly connected to the outside of the drawer.

[0018] By adopting the above technical solution, it is convenient to pull the drawer out of the mounting slot.

[0019] In a preferred embodiment, a combination lock cylinder is fixedly installed on the outside of the drawer and on the side of the selector switch.

[0020] By adopting the above technical solution, it becomes easier for staff to unlock the drawers.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In this utility model, when the worker pulls the drawer out of the mounting groove, the connecting piece a on both sides of the drawer will be pulled at the same time, causing the connecting piece a to slide in the connecting piece b, thereby gradually extending the length of the connecting piece a. When the drawer is pulled out to the limit position outside the cabinet, the reaction force of the spring will push the positioning pin into the corresponding hole, thereby fixing the connecting piece b and the connecting piece a. Furthermore, the cooperation between the connecting piece b and the connecting piece a can distribute the weight of the drawer pull-out part, making the drawer more stable and secure when pulled out, thereby reducing the occurrence of breakage of the connecting parts.

[0023] 2. In this utility model, the combined use of the limiting groove and the limiting post can play an important role in limiting the extension and retraction length of the connector a, preventing the connector a from detaching from the connector b, and ensuring the stable use of the connector a and the connector b. Attached Figure Description

[0024] Figure 1 This utility model provides an overall perspective view of a low-voltage withdrawable switchgear;

[0025] Figure 2 A half-sectional view of a low-voltage withdrawable switchgear is provided for this utility model;

[0026] Figure 3 This utility model provides a sectional bottom view of a low-voltage withdrawable switchgear;

[0027] Figure 4 This utility model provides a schematic diagram of the structure of connector a and connector b for a low-voltage withdrawable switchgear;

[0028] Figure 5 This utility model provides a schematic diagram of a guide assembly for a low-voltage withdrawable switchgear.

[0029] Legend: 1. Cabinet body; 2. Drawer; 3. Mounting groove; 4. Groove body; 5. Wiring hole; 6. Slide rail; 7. Changeover switch; 8. Combination lock cylinder; 9. Pulley; 10. Guide rail; 11. Connector a; 12. Connector b; 13. Limiting groove; 14. Limiting post; 15. Spring; 16. Positioning pin; 17. Socket. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] Reference Figure 1-5 A low-voltage withdrawable switchgear includes a cabinet 1. The cabinet 1 has multiple mounting slots 3 inside, each slot 3 having a drawer 2 slidably connected to it. Each drawer 2 has a connector b12 rotatably connected to both sides. Each connector b12 has a connector a11 slidably connected to it. The end of connector a11 away from connector b12 is rotatably connected to the inner wall of the mounting slot 3. Connector a11 has a sliding groove inside, with a positioning pin 16 slidably connected inside the groove. A spring 15 is fixedly connected between the positioning pin 16 and the inner wall of the groove. Connector b12 has a socket 17 inside, which engages with the positioning pin 16. The positioning pin 16 is engaged in the socket 17. When the operator pulls the drawer 2 out of the mounting slot 3, it will simultaneously pull the connecting pieces a11 on both sides of the drawer 2, causing the connecting pieces a11 to slide within the connecting piece b12. This allows the length of the connecting piece a11 to gradually unfold. When the drawer 2 is pulled out to its limit position outside the cabinet 1, the reaction force of the spring 15 will push the positioning pin 16 into the corresponding socket 17, thereby fixing the connecting piece b12 and the connecting piece a11. Furthermore, the cooperation between the connecting pieces b12 and the connecting piece a11 can distribute the weight of the drawer 2 when it is pulled out, making the drawer 2 more stable and secure when it is pulled out, thus reducing the possibility of breakage at the connection point.

[0032] Specifically, limiting components are provided on both sides of connector b12. The limiting components include limiting grooves 13 on both sides of connector b12. Through the cooperation of limiting grooves 13 and limiting posts 14, the extension and retraction length of connector a11 can be effectively limited, preventing connector a11 from detaching from connector b12 and ensuring the stable use of connector a11 and connector b12. Limiting posts 14 are slidably connected inside the limiting grooves 13. The two limiting posts 14 are fixedly connected to both sides of connector a11. The mounting groove 3 is provided with a guide component. The guide component includes guide rails 10 fixedly connected to both sides of drawer 2. Through the cooperation of guide rails 10 and slide rails 6, the process of drawing out drawer 2 can be guided, so that drawer 2 slides horizontally. Slide rails 6 that cooperate with guide rails 10 are fixedly connected to both sides of the inner wall of mounting groove 3. Guide rails 10 and slide rails 6 are engaged. Wiring holes 5 are arrayed on the rear side of drawer 2 to facilitate the wiring of cables and equipment.

[0033] Specifically, a groove 4 is provided inside the cabinet 1 and below the mounting groove 3. A pulley 9 is rotatably installed at the bottom of the drawer 2. When the drawer 2 moves along the guide rail 10, the pulley 9 under the drawer 2 bears the weight and reduces frictional resistance. The pulley 9 is rotatably connected inside the groove 4. A changeover switch 7 is fixedly installed on the outside of the drawer 2. A combination lock cylinder 8 is fixedly installed on the outside of the drawer 2 and on one side of the changeover switch 7, which makes it convenient for staff to unlock the drawer 2. A handle is fixedly connected to the outside of the drawer 2, which makes it convenient to pull the drawer 2 out of the mounting groove 3.

[0034] Working principle: First, when the operator pulls drawer 2 out of the mounting slot 3, it simultaneously pulls the connecting pieces a11 on both sides of drawer 2, causing connecting pieces a11 to slide within connecting piece b12. This gradually extends the length of connecting piece a11. When drawer 2 is pulled out to its limit position outside the cabinet 1, the reaction force of spring 15 pushes the positioning pin 16 into the corresponding socket 17, thus fixing connecting piece b12 and connecting piece a11. The combined use of the pulley 13 and the limit post 14 can distribute the weight of the drawer 2 pull-out part, making the drawer 2 more stable and secure when pulled out. The combination of the limit groove 13 and the limit post 14 can play an important role in limiting the extension length of the connector a11, preventing the connector a11 from detaching from the connector b12, and ensuring the stable use of the connector a11 and the connector b12. The use of the pulley 9 and the groove 4 allows the drawer 2 to move along the guide rail 10, while the pulley 9 under the drawer 2 bears the weight and reduces frictional resistance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0036] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A low-voltage withdrawable switchgear, comprising a cabinet (1), characterized in that: The cabinet (1) has multiple mounting slots (3) inside. Each mounting slot (3) is slidably connected to a drawer (2). Each drawer (2) is rotatably connected to two sides of a connector b (12). Each connector b (12) is slidably connected to a connector a (11). The end of connector a (11) away from connector b (12) is rotatably connected to the inner wall of the mounting slot (3). Connector a (11) has a sliding groove inside. A positioning pin (16) is slidably connected inside the sliding groove. A spring (15) is fixedly connected between the positioning pin (16) and the inner wall of the sliding groove. Connector b (12) has a socket (17) inside that works with the positioning pin (16). The positioning pin (16) is engaged in the socket (17).

2. A low-voltage withdrawable switchgear according to claim 1, characterized in that: Limiting components are provided on both sides of the connector b (12). The limiting components include limiting grooves (13) opened on both sides of the connector b (12). Limiting posts (14) are slidably connected inside the limiting grooves (13). The two limiting posts (14) are fixedly connected to both sides of the connector a (11).

3. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The mounting slot (3) is provided with a guide component inside. The guide component includes guide rails (10) fixedly connected to both sides of the drawer (2). Both sides of the inner wall of the mounting slot (3) are fixedly connected with slide rails (6) that cooperate with the guide rails (10).

4. A low-voltage withdrawable switchgear according to claim 3, characterized in that: The guide rail (10) engages with the slide rail (6), and the drawer (2) has wiring holes (5) arranged on the rear side.

5. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The cabinet (1) has a groove (4) inside and below the mounting groove (3), and the bottom of the drawer (2) is rotatably equipped with a pulley (9).

6. A low-voltage withdrawable switchgear according to claim 5, characterized in that: The pulley (9) is tumblingly connected inside the slot (4), and a changeover switch (7) is fixedly installed on the outside of the drawer (2).

7. A low-voltage withdrawable switchgear according to claim 1, characterized in that: The drawer (2) has a handle fixedly connected to its outer side.

8. A low-voltage withdrawable switchgear according to claim 6, characterized in that: A combination lock cylinder (8) is fixedly installed on the outside of the drawer (2) and on the side of the changeover switch (7).

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