Drawer type switch cabinet with safe power-off function

Abstract

The utility model discloses a safe power-off drawer type switch cabinet which comprises a cabinet body, a drawer box is arranged in the cabinet body, and a plurality of drawers are installed in the drawer box in a sliding mode. Sliding grooves are formed in the two sides of the drawer, sliding strips matched with the sliding grooves are horizontally arranged in the drawer box, a plug is arranged on the rear side of the drawer, and a corresponding socket is arranged on the rear side of the drawer box. The front side of the sliding strip on one side extends out of the front side of the drawer, a linkage rod is arranged in the sliding strip in a front-back penetrating and sliding mode, a limiting rod is vertically arranged on the front side of the linkage rod, the rear side of the linkage rod is sleeved with an abutting cam, a switch box corresponding to the abutting cam is arranged on the inner wall of the rear side of the drawer box, and the switch box is electrically connected with the socket through a junction box. According to the utility model, the design is novel, the structure is simple, the drawer of the switch cabinet is convenient to overhaul and maintain, safe power-on and power-off of the drawer can be effectively ensured, emergency power-off in an emergency state can be carried out, and stable operation and good use effect of the switch cabinet are ensured.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet technology, and in particular to a drawer-type switch cabinet with safe power-off function. Background Technology

[0002] Drawer-type switchgear is a closed enclosure made of steel plate. The electrical components for the incoming and outgoing circuits are installed in removable drawers, forming a functional unit capable of performing a specific power supply task. Isolation measures are also in place between each functional unit. It is suitable for industrial and mining enterprises and high-rise buildings requiring high power supply reliability, serving as a centralized control power distribution center.

[0003] In most current drawer-type switch cabinets, the drawers are directly powered on when inserted, and then controlled by the switch in the drawer. This power-on method is not conducive to controlling the power on and off of the drawer, and it is also inconvenient for the inspection and maintenance of the drawer. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology, which is that the power-on method of the drawer is not conducive to controlling the power-on and power-off of the drawer, and is also inconvenient for the inspection and maintenance of the drawer. Therefore, a safe power-off drawer-type switch cabinet is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A safe power-off drawer-type switch cabinet includes a cabinet body, a drawer box inside the cabinet body, and multiple drawers slidably installed in the drawer box;

[0007] Both sides of the drawer are provided with slide grooves, and the drawer box is provided with horizontal slide strips that match the slide grooves. A plug is provided on the back of the drawer, and a corresponding socket is provided on the back of the drawer box.

[0008] One of the slide bars extends out of the front of the drawer and a connecting rod is provided in the slide bar that slides through it. A limit rod is provided vertically on the front of the connecting rod, and a retaining cam is fitted on the rear of the connecting rod. A switch box is provided on the inner wall of the rear of the drawer box corresponding to the retaining cam. The switch box is electrically connected to the socket through a junction box.

[0009] The high and low wheel surfaces that support the rotation of the cam are used to control the switching of the switch box, which in turn controls the on / off state of the socket.

[0010] Preferably, the switch box includes a sliding sleeve fixedly installed on the drawer box, a sliding switch slidably disposed in the sliding sleeve, and a terminal block electrically connected to the junction box embedded on the side of the sliding sleeve away from the supporting cam. The sliding switch and the terminal block are provided with corresponding conductive posts and insertion slots. The sliding sleeve is provided with sliding rods slidably connected to the sliding switch on both sides, and a return spring is fitted on the sliding rod.

[0011] Preferably, the conductive post and the plug slot are provided in two sets, one set is connected to the socket through the junction box, and the other set is connected to the equipment that needs to be controlled by the switch cabinet.

[0012] Preferably, the linkage rod is provided with a limiting ring, the slide bar is provided with a linkage hole for the limiting ring to slide, and a compression spring is provided between the limiting ring and the linkage hole.

[0013] More preferably, the front side of the drawer is provided with a snap-fit ​​groove for the slide bar to pass through, and both the slide bar and the front side of the drawer are provided with limit grooves corresponding to the limit rod, and the angles of the two limit grooves are matched with the near and far rest points of the abutment cam.

[0014] Even more preferably, the limiting rod is also provided with a locking buckle, and the limiting groove is provided with a locking groove that matches the locking buckle.

[0015] Preferably, the inner rear wall of the drawer box is also provided with an elastic limiting block corresponding to the drawer.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the circuit on / off of the drawer is controlled by the design of the linkage rod, the supporting cam and the switch box, which makes it easy to control the circuit on / off of the drawer and ensures the safe power-on and power-off capability of the drawer.

[0018] 2. In this utility model, through the sliding design of the linkage rod, in an emergency, the linkage rod can be pulled out to disengage the abutting cam from the switch box, so as to quickly cut off the power to the drawer and ensure the safe power-off effect of the drawer.

[0019] 3. In this utility model, the design of the linkage rod, locking buckle and limiting groove ensures that the position of the linkage rod is stably fixed, ensuring stable power supply or power cut-off of the drawer, and ensuring stable operation of the switch cabinet.

[0020] This utility model features a novel design and simple structure, facilitating the inspection and maintenance of the switch cabinet drawers while effectively ensuring the safe power-on and power-off of the drawers. It also enables emergency power-off in emergency situations, ensuring the stable operation and good performance of the switch cabinet. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the appearance structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the drawer box structure of this utility model.

[0023] Figure 3 This is a schematic diagram of the drawer structure of this utility model.

[0024] Figure 4This is a schematic diagram of the back structure of the drawer of this utility model.

[0025] Figure 5 This is a cross-sectional schematic diagram of the linkage of this utility model.

[0026] Figure 6 This is a schematic diagram of the linkage rod and switch box structure of this utility model.

[0027] Figure 7 This is a cross-sectional view of the switch box of this utility model.

[0028] Figure 8 This is a schematic diagram of the internal structure of the switch box of this utility model.

[0029] In the diagram: Cabinet 1, Drawer box 2, Drawer 3, First handle 31, Slide groove 32, Snap-fit ​​groove 33, Limiting groove 34, Plug 35, Slide bar 4, Linkage hole 41, Linkage rod 5, Limiting rod 51, Locking buckle 511, Second handle 512, Limiting ring 52, Compression spring 53, Supporting cam 54, Switch box 6, Slide sleeve 60, Slide switch 61, Terminal block 62, Conductive post 63, Plug groove 631, Slide bar 64, Return spring 641, Socket 7, Junction box 71, Elastic limiting block 8. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Reference Figure 1-8 A safe power-off drawer-type switch cabinet includes a cabinet body 1, a drawer box 2 in the cabinet body 1, and multiple drawers 3 slidably installed in the drawer box 2; multiple first handles 31 are provided on the drawers 3, other peripheral equipment can be installed on the outside of the drawer box 2, and corresponding switches and other equipment are installed in the drawers 3 to form an independent functional unit.

[0032] Both sides of the drawer 3 are provided with slide grooves 32, and the drawer box 2 is provided with a horizontal slide bar 4 that matches the slide grooves 32. The drawer 3 is provided with a plug 35 on the rear side, and the drawer box 2 is provided with a corresponding socket 7 on the rear side. Through the design of the plug 35 and the socket 7, when the drawer 3 is pushed in, the plug 35 is inserted into the socket 7 to complete the electrical connection, which facilitates the installation and maintenance of the drawer 3.

[0033] One side of the slide bar 4 extends outward from the front of the drawer 3, and a connecting rod 5 is slidably mounted through the slide bar 4. A limiting rod 51 is vertically mounted on the front of the connecting rod 5, and a retaining cam 54 is fitted on the rear of the connecting rod 5. A switch box 6 is provided on the inner rear wall of the drawer box 2 corresponding to the retaining cam 54. The switch box 6 is electrically connected to the socket 7 via a junction box 71. The high and low rotating surfaces of the retaining cam 54 are used to control the opening and closing of the switch box 6, which in turn controls the on / off state of the socket 7. Through the design of the switch box 6, in conjunction with the retaining cam 54, the opening and closing of the switch box 6 is controlled to control the on / off state of the socket 7, facilitating the safe power-off of the drawer 3. The rotation of the retaining cam 54, in conjunction with the limiting rod 51 and the connecting rod 5, is controlled to control the opening and closing of the switch box 6 and the socket 7, facilitating the control of the connection between the drawer 3 and the equipment in the cabinet 1.

[0034] Based on the above technical solution, when using this drawer-type switch cabinet, align the slide rail 32 and slide bar 4 of drawer 3 and push drawer 3 in until plug 35 is inserted into socket 7. After drawer 3 is installed, use limit rod 51 to rotate linkage rod 5 to drive the abutment cam 54 to rotate, so that the abutment cam 54 presses the switch box 6 to conduct electricity to the switch in drawer 3. When it is necessary to remove drawer 3, first rotate linkage rod 5 to drive abutment cam 54 to rotate and close switch box 6 to disconnect power to drawer 3, and then pull out drawer 3 to ensure safe power disconnection for maintenance and repair of drawer 3.

[0035] In this technical solution, such as Figure 1-8 As shown, the switch box 6 includes a sliding sleeve 60 fixedly mounted on the drawer box 2, a sliding switch 61 slidably disposed in the sliding sleeve 60, and a terminal block 62 electrically connected to the junction box 71, embedded on the side of the sliding sleeve 60 away from the supporting cam 54. Corresponding conductive posts 63 and insertion slots 631 are provided between the sliding switch 61 and the terminal block 62. Sliding rods 64, slidably connected to the sliding switch 61, are provided on both sides of the sliding sleeve 60, and return springs 641 are fitted on the sliding rods 64. When the supporting cam 54 rotates from its near-rest point to its far-rest point, it presses the sliding switch 61 to slide towards the sliding sleeve 60 until the conductive post 63 and the insertion slot 631 are connected, thus opening the switch box 6. Conversely, it disconnects the switch box 6. The design of the sliding rods 64 and the return spring 641 ensures the sliding stability of the sliding switch 61 while the return spring 641 ensures the disconnection and reset effect of the switch box 6, preventing accidental connection.

[0036] In the event of an emergency power outage, in addition to the emergency power-off capability of the switch inside drawer 3, the linkage rod 5 can also be pulled outward to disengage the retaining cam 54 from the switch box 6, thereby resetting the switch box 6 to disconnect the power to drawer 3 and ensuring the emergency power-off capability of drawer 3.

[0037] In this technical solution, such as Figure 5-8 As shown, there are two sets of conductive posts 63 and plug slots 631. One set is connected to the socket 7 via the junction box 71, and the other set is connected to the equipment that needs to be controlled by the switch cabinet. The design of two or more sets of conductive posts 63 and plug slots 631 facilitates the synchronous control of the conduction of multiple circuits and the control of the power supply and de-energization of the drawer 3.

[0038] In this technical solution, such as Figure 5-8 As shown, the linkage 5 is provided with a limiting ring 52, and the slide bar 4 is provided with a linkage hole 41 for the limiting ring 52 to slide. A compression spring 53 is provided between the limiting ring 52 and the linkage hole 41. The design of the compression spring 53 ensures the good reset state of the linkage 5, avoids the linkage 5 extending and causing abnormal power failure of the switch box, and ensures the stable power supply of the drawer 3 by the elastic force of the compression spring 53.

[0039] In this technical solution, such as Figure 1-6 As shown, the front side of the drawer 3 is provided with a locking groove 33 for the slide bar 4 to pass through. Both the slide bar 4 and the front side of the drawer 3 have corresponding limiting grooves 34 on the limiting rod 51, and the angles of the two limiting grooves 34 match the near and far rest angles of the supporting cam 54. The locking groove 33 limits the rotation angle of the linkage rod 5 to control the opening and closing position of the switch box 6, ensuring stable opening and closing of the switch box 6. It also prevents abnormal rotation of the linkage rod 5 during drawer 3 operation, ensuring stable on / off control capability of the switch box 6.

[0040] In this technical solution, such as Figure 1-6 As shown, the limiting rod 51 is also provided with a locking buckle 511, and the limiting groove 34 is provided with a locking groove that matches the locking buckle 511. The locking buckle 511 is locked in the locking groove by the compression spring 53, and the position of the connecting rod 5 is further limited by the locking buckle 511 to ensure a good limiting effect on the angle of the connecting rod 5.

[0041] In this technical solution, such as Figure 1-4 As shown, the inner rear wall of the drawer box 2 is also provided with an elastic limiting block 8 corresponding to the drawer 3.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safety power-off switchgear cabinet, characterized in that, The utility model provides a cabinet, which comprises a cabinet body (1), a drawer box (2) arranged in the cabinet body (1), and a plurality of drawers (3) slidably arranged in the drawer box (2). The drawer (3) is provided with a sliding groove (32) on both sides, the drawer box (2) is horizontally provided with a sliding strip (4) matched with the sliding groove (32), the rear side of the drawer (3) is provided with a plug (35), and the rear side of the drawer box (2) is provided with a corresponding socket (7). The front side of the sliding strip (4) on one side extends out of the front side of the drawer (3), and a linkage rod (5) is slidably arranged in the sliding strip (4) from front to back. The front side of the linkage rod (5) is vertically provided with a limiting rod (51), and the rear side of the linkage rod (5) is sleeved with a bearing cam (54).

2. A draw-out switchgear cabinet with safety disconnection according to claim 1, characterized in that The rear inner wall of the drawer box (2) is provided with a switch box (6) corresponding to the bearing cam (54), and the switch box (6) is electrically connected with the socket (7) through a junction box (71).

3. A draw-out switchgear cabinet with safety disconnection according to claim 1, characterized in that, The high and low wheel faces of the bearing cam (54) are used for controlling the switch of the switch box (6), and the switch box (6) is used for controlling the on-off of the socket (7).

4. A draw-out switchgear cabinet with safety disconnection according to claim 1, characterized in that, The switch box (6) comprises a sliding sleeve (60) fixedly arranged on the drawer box (2), a sliding switch (61) slidably arranged in the sliding sleeve (60), and a terminal block (62) electrically connected with the junction box (71) and embedded on the side of the sliding sleeve (60) away from the bearing cam (54).

5. A draw-out switchgear cabinet with safety disconnection according to claim 4, characterized in that The sliding switch (61) and the terminal block (62) are provided with corresponding conductive columns (63) and plug-in grooves (631) therebetween.

6. A draw-out switchgear cabinet with safety disconnection according to claim 5, characterized in that The sliding sleeve (60) is provided with sliding rods (64) slidably connected with the sliding switch (61) on both sides.

7. A draw-out switchgear cabinet with safety disconnection according to claim 1, characterized in that, The conductive columns (63) and the plug-in grooves (631) are provided with two groups. One group is connected with the socket (7) through the junction box (71), and the other group is connected with equipment controlled by the switch cabinet. The linkage rod (5) is provided with a limiting ring (52), the sliding strip (4) is provided with a linkage hole (41) for the sliding of the limiting ring (52), and the limiting ring (52) and the linkage hole (41) are provided with a compression spring (53) therebetween. The front side of the drawer (3) is provided with a clamping groove (33) for the sliding strip (4) to pass through. The front side of the drawer (3) is provided with a clamping groove (33) for the sliding strip (4) to pass through. The limiting rod (51) is further provided with a locking buckle (511), and the limiting slot (34) is provided with a locking slot matched with the locking buckle (511). The rear inner wall of the drawer box (2) is further provided with an elastic limiting block (8) corresponding to the drawer (3).

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