Drawer for low-voltage power distribution cabinet

Abstract

The invention relates to a drawer for a low-voltage power distribution cabinet. The drawer comprises a drawer body, a locking mechanism and a drawer door, the locking mechanism comprises a support, a rotating shaft, a special-shaped gear, an inserting rod, a swing rod, a first rack, a gear and a second rack. The rotating shaft is horizontally and rotatably arranged at the upper part of the bracket; the special-shaped gear fixedly sleeves one end, close to the bracket, of the rotating shaft; the insertion rod is fixed on the special-shaped gear; the insertion rod penetrates through the swing rod and is connected with the swing rod; the first rack is horizontally arranged on a bottom plate of the drawer body in a sliding mode in the width direction of the drawer body, an insertion through hole is formed in the first rack, and the lower end of the swing rod is inserted into the insertion through hole; the second rack is horizontally arranged on a bottom plate of the drawer body in a sliding mode in the width direction of the drawer body. The gear is arranged on a bottom plate of the drawer body; a receding hole is formed in the position, facing the second rack, of one side of the drawer body. According to the invention, the drawer body is effectively prevented from being opened by mistake due to external vibration after being installed on the low-voltage power distribution cabinet.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to a drawer for a low-voltage power distribution cabinet. Background Art

[0002] Low-voltage switchgear, also known as low-voltage distribution cabinet, is an electrical device. The manufacturer is responsible for completing all internal electrical and mechanical connections and assembling one or more low-voltage switchgear and related control, measurement, signal, protection, regulation and other equipment together with structural components.

[0003] At present, since the drawers in the low-voltage distribution cabinet often need to be pulled out for debugging and maintenance, it is very important to ensure safe use. In addition, the shaking of the drawer caused by repeated push-pull operations will affect the matching of the plug connector. Reducing the shaking of the drawer can better ensure the performance of the cabinet.

[0004] It is desired to provide a drawer for a low-voltage power distribution cabinet in order to solve the above-mentioned technical problems. Summary of the invention

[0005] The object of the present invention is to provide a drawer for a low-voltage power distribution cabinet, which can effectively prevent the drawer body from being opened by mistake due to external vibration after being installed in the low-voltage power distribution cabinet.

[0006] In order to achieve the above object of the invention, a drawer for a low-voltage power distribution cabinet is provided, comprising a drawer body, a locking mechanism and a drawer door;

[0007] The outer end of the drawer body has an opening for installing the drawer door;

[0008] An input end connector and an output end connector are provided on the outer wall of the inner end portion of the drawer body;

[0009] Two rollers are provided on both sides of the bottom of the drawer body;

[0010] The bottom and both sides of the drawer body are evenly provided with a plurality of mounting through holes;

[0011] The drawer door is detachably arranged at the opening of the drawer body;

[0012] The locking mechanism includes a bracket, a rotating shaft, a special-shaped gear, an insertion rod, a swing rod, a first rack, a gear and a second rack;

[0013] The bracket is fixed in the drawer body and close to one side of the drawer door;

[0014] The rotating shaft is horizontally rotatably arranged on the upper part of the bracket, and one end of the rotating shaft passes through the drawer door;

[0015] The special-shaped gear is sleeved and fixed on one end of the rotating shaft close to the bracket;

[0016] The insertion rod is fixed on the special-shaped gear and is parallel to the rotating shaft;

[0017] The insertion rod passes through the swing rod and is connected to the swing rod;

[0018] The first rack is horizontally slidably arranged on the bottom plate of the drawer body along the width direction of the drawer body, and a plug-in through hole is provided on the first rack, and the lower end of the swing rod is plugged into the plug-in through hole;

[0019] The second rack is horizontally slidably arranged on the bottom plate of the drawer body along the width direction of the drawer body, and the teeth on the first rack and the second rack face each other;

[0020] The gear is arranged on the bottom plate of the drawer body and is located between the first rack and the second rack, and the gear is meshed with the first rack and the second rack respectively;

[0021] A avoidance hole is provided on one side of the drawer body at a position facing the second rack.

[0022] Preferably, a partition is vertically fixed on the bracket, and a special-shaped limiting groove is provided on the partition. The special-shaped limiting groove runs through the front and rear sides of the partition, and the insertion rod passes through the special-shaped limiting groove.

[0023] Furthermore, a configuration block is provided at the lower portion of the swing rod.

[0024] Preferably, both sides of the opening of the drawer body extend horizontally outwards of both sides thereof to form flanged portions;

[0025] The flange parts are all provided with square holes;

[0026] Insert hooks are provided on both sides of the inner wall of the drawer door facing the square hole;

[0027] A sliding plate is vertically slidably provided at a bending area of ​​the flanged portion of the drawer body, and the sliding plate is adapted to the plug hook;

[0028] A support base is fixed on the outer side of the drawer body at a position just below the slide. A column is vertically arranged at the bottom of the support base. The column passes through the bottom of the slide and a spring is sleeved on the column. The spring is located below the slide.

[0029] Specifically, there are two square holes on each flange portion, the two square holes are arranged along the vertical direction, and there are also two hooks on one side of the drawer door.

[0030] Preferably, a handle is provided on the outer side of the drawer door.

[0031] Preferably, a sensor is further provided on the outer wall of the inner end of the drawer body, and the sensor is electrically connected to the input end connector and the output end connector respectively.

[0032] Preferably, two positioning pins are provided on the outer wall of the inner end portion of the drawer body.

[0033] Preferably, a handle is provided on the end of the rotating shaft passing through the drawer door.

[0034] Preferably, a long slot is provided on the swing rod, one end of the insertion rod passes through the long slot, and pressing plates are provided on both the left and right sides of the insertion rod. After the insertion rod is inserted into the long slot, it is fixed by the pressing plates.

[0035] The present invention provides a drawer for a low-voltage power distribution cabinet, which has the following advantages compared with the prior art:

[0036] (1) By setting a locking mechanism, by turning the handle, the shaft rotates, so that the special-shaped gear rotates, driving the plug rod to rotate so that the swing rod swings, thereby driving the first rack to move linearly. Since the first rack and the second rack are both meshed with the gear, the gear rotates, so that the second rack moves in the opposite direction to the first rack. Finally, one end of the second rack extends out of the avoidance hole of the drawer body and is plugged into the corresponding socket in the low-voltage distribution cabinet, effectively preventing the drawer body from sliding in the cabinet due to the vibration of the low-voltage distribution cabinet;

[0037] (2) When the drawer door is assembled at the opening of the drawer body, the slide plate is pressed down, and the hooks on the drawer door are respectively passed through the corresponding square holes, and the slide plate is released, and the slide plate is clamped on the hook, so that the drawer door is assembled on the drawer, and the installation is very convenient. When the drawer door needs to be removed, the slide plate can be pressed to pull out the drawer door, and the drawer door is easy to install;

[0038] (3) Simple structure and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the structure of a drawer for a low-voltage power distribution cabinet in this embodiment Figure 1 ;

[0040] Figure 2 Schematic diagram of the structure of the drawer body in this embodiment;

[0041] Figure 3 The structure of the locking mechanism in this embodiment is shown in FIG. Figure 1 ;

[0042] Figure 4 The structure of the locking mechanism in this embodiment is shown in FIG. Figure 2 ;

[0043] Figure 5 for Figure 1 A partial enlarged view of the middle part;

[0044] Figure 6 A schematic diagram of the structure of a drawer for a low-voltage power distribution cabinet in this embodiment Figure 2 . DETAILED DESCRIPTION

[0045] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0046] like Figure 1 As shown, a drawer for a low-voltage power distribution cabinet includes a drawer body 1, a locking mechanism 2 and a drawer door 3.

[0047] like Figure 2 As shown, the outer end of the drawer body 1 has an opening 4 for installing the drawer door 3. An input end connector 5 and an output end connector 6 are provided on the outer wall of the inner end of the drawer body 1. Two rollers 7 are provided on both sides of the bottom of the drawer body 1 to reduce the friction with the cabinet body and facilitate the staff to pull out the drawer.

[0048] In this embodiment, a sensor 8 is further provided on the outer wall of the inner end of the drawer body 1, and the sensor 8 is electrically connected to the input end connector 5 and the output end connector 6 respectively. When the input end connector 5 and the output end connector 6 are energized, the sensor 8 sends a signal to the external control system, indicating that the internal power supply is normal.

[0049] The bottom and both sides of the drawer body 1 are evenly provided with a plurality of mounting through holes 9, which are used for mounting electrical components on the one hand, and can also play a role in heat dissipation on the other hand.

[0050] In this embodiment, two positioning pins 10 are provided on the outer wall of the inner end of the drawer body 1, which effectively ensures the accuracy of the installation position of the drawer body 1 in the low-voltage distribution cabinet.

[0051] The drawer door 3 is detachably arranged at the opening of the drawer body 1 .

[0052] like Figure 3 As shown, the locking mechanism includes a bracket 11, a rotating shaft 12, a special-shaped gear 13, an insert rod 14, a rocker rod 15, a first rack 16, a gear 17 and a second rack 18; the bracket 11 is fixed in the drawer body 1 and is close to the side of the drawer door 3; the rotating shaft 12 is horizontally rotatably arranged on the upper part of the bracket 11, and one end of the rotating shaft 12 passes through the drawer door 3; in this embodiment, in order to facilitate the rotation of the rotating shaft 12, a handle 19 is provided on the end of the rotating shaft 12 passing through the drawer door.

[0053] The special-shaped gear 13 is sleeved and fixed on one end of the rotating shaft near the bracket 11; the insertion rod 14 is fixed on the special-shaped gear 13 and is parallel to the rotating shaft 12; the insertion rod 14 passes through the swing rod 15 and is connected to the swing rod 15; in this embodiment, the swing rod 15 is provided with a long slot 20, one end of the insertion rod 14 passes through the long slot 20, and the insertion rod 14 is provided with pressing plates 21 on both sides of the long slot 20. After the insertion rod 14 is inserted into the long slot 20, it is fixed by the pressing plates 21. Such a configuration facilitates the installation and adjustment of the swing rod and the insertion rod.

[0054] The first rack 16 is horizontally slidably arranged on the bottom plate of the drawer body 1 along the width direction of the drawer body 1, and the first rack 16 is provided with an insertion hole 22, and the lower end of the rocker rod 15 is inserted into the insertion hole 22; the second rack 18 is horizontally slidably arranged on the bottom plate of the drawer body 1 along the width direction of the drawer body 1, and the teeth on the first rack 16 and the second rack 18 face each other; the gear 17 is arranged on the bottom plate of the drawer body 1 and is located between the first rack 16 and the second rack 18, and the gear 17 is respectively engaged with the first rack 16 and the second rack 18.

[0055] A avoidance hole 23 is provided on one side of the drawer body 1 at a position facing the second rack.

[0056] After the drawer is assembled and installed in the corresponding position of the low-voltage distribution cabinet, by turning the handle 19, the shaft 12 rotates, the special-shaped gear 13 rotates, driving the plug rod 14 to rotate, and the swing rod 15 swings, thereby driving the first rack 16 to move in a straight line. Since the first rack 16 and the second rack 18 are both engaged with the gear 17, the gear 17 rotates, causing the second rack 18 to move in the opposite direction to the first rack 16. Finally, one end of the second rack 18 extends out of the avoidance hole 23 of the drawer body 1 and is plugged into the corresponding jack in the low-voltage distribution cabinet, effectively preventing the drawer body 1 from sliding in the cabinet due to the vibration of the low-voltage distribution cabinet.

[0057] In this embodiment, if Figure 4 As shown, a partition 24 is vertically fixed on the bracket 11, and a special-shaped limiting groove 25 is provided on the partition 24. The special-shaped limiting groove 25 runs through the front and rear sides of the partition 24, and the insertion rod 14 passes through the special-shaped limiting groove 25. Such an arrangement not only guides the insertion rod 14, but also limits the insertion rod 14.

[0058] In this embodiment, a configuration block 26 is provided at the lower portion of the swing rod 15 to effectively prevent the swing rod 15 from malfunctioning due to vibration.

[0059] In this embodiment, if Figure 5As shown, both sides of the opening of the drawer body 1 extend horizontally to the outside of both sides to form flanged portions 27; square holes 28 are provided on the flanged portions 27; hooks 29 are provided on both sides of the inner wall of the drawer door 3 opposite to the square holes 28; a slide plate 30 is vertically slidably provided in the bending area of ​​the flanged portion 27 of the drawer body 1, and the slide plate 30 is adapted to the hooks 29; a support seat 31 is fixed to the outer side of the drawer body 1 at a position directly below the slide plate 30, and a column 32 is vertically provided at the bottom of the support seat 31 The column 32 passes through the bottom of the slide plate 30, and a spring 33 is sleeved on the column 32, and the spring 33 is located below the slide plate 30; when the drawer door 3 is assembled at the opening 4 of the drawer body 1, the slide plate 30 is pressed down, and the hooks on the drawer door 3 pass through the corresponding square holes 28 respectively, and the slide plate 30 is released. The slide plate 30 is stuck on the hook 29, so that the drawer door 3 is assembled on the drawer body. The installation is very convenient. When the drawer door needs to be removed, the slide plate is pressed to pull out the drawer door.

[0060] In this embodiment, there are two square holes 28 on each flange portion 27, and the two square holes 28 are arranged along the vertical direction. There are also two hooks 29 on one side of the drawer door 3. Such an arrangement can make the drawer door 3 more firmly connected to the opening 3 of the drawer door body 1 without affecting the disassembly of the drawer door 3.

[0061] In this embodiment, if Figure 6 As shown, a handle 34 is provided on the outer side of the drawer door 3 to facilitate the staff to pull out.

[0062] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A drawer for a low-voltage power distribution cabinet, characterized in that: It includes a drawer body, a locking mechanism and a drawer door; The outer end of the drawer body has an opening for installing the drawer door; An input end connector and an output end connector are provided on the outer wall of the inner end portion of the drawer body; Two rollers are provided on both sides of the bottom of the drawer body; The bottom and both sides of the drawer body are evenly provided with a plurality of mounting through holes; The drawer door is detachably arranged at the opening of the drawer body; The locking mechanism includes a bracket, a rotating shaft, a special-shaped gear, an insertion rod, a swing rod, a first rack, a gear and a second rack; The bracket is fixed in the drawer body and close to one side of the drawer door; The rotating shaft is horizontally rotatably arranged on the upper part of the bracket, and one end of the rotating shaft passes through the drawer door; The special-shaped gear is sleeved and fixed on one end of the rotating shaft close to the bracket; The insertion rod is fixed on the special-shaped gear and is parallel to the rotating shaft; The insertion rod passes through the swing rod and is connected to the swing rod; The first rack is horizontally slidably arranged on the bottom plate of the drawer body along the width direction of the drawer body, and a plug-in through hole is provided on the first rack, and the lower end of the swing rod is plugged into the plug-in through hole; The second rack is horizontally slidably arranged on the bottom plate of the drawer body along the width direction of the drawer body, and the teeth on the first rack and the second rack face each other; The gear is arranged on the bottom plate of the drawer body and is located between the first rack and the second rack, and the gear is meshed with the first rack and the second rack respectively; A avoidance hole is provided on one side of the drawer body at a position facing the second rack.

2. A drawer for a low-voltage power distribution cabinet according to claim 1, characterized in that: A partition is vertically fixed on the bracket, and a special-shaped limiting groove is arranged on the partition. The special-shaped limiting groove runs through the front and rear sides of the partition, and the insertion rod passes through the special-shaped limiting groove.

3. A drawer for a low-voltage power distribution cabinet according to claim 2, characterized in that: A configuration block is provided at the lower part of the swing rod.

4. A drawer for a low-voltage power distribution cabinet according to any one of claims 1 to 3, characterized in that: Both sides of the opening of the drawer body extend horizontally to the outside of both sides to form flanged portions; The flange parts are all provided with square holes; Insert hooks are provided on both sides of the inner wall of the drawer door facing the square hole; A sliding plate is vertically slidably provided at a bending area of ​​the flanged portion of the drawer body, and the sliding plate is adapted to the plug hook; A support base is fixed on the outer side of the drawer body at a position just below the slide. A column is vertically arranged at the bottom of the support base. The column passes through the bottom of the slide and a spring is sleeved on the column. The spring is located below the slide.

5. A drawer for a low-voltage power distribution cabinet according to claim 4, characterized in that: There are two square holes on each flange portion, and the two square holes are arranged along the vertical direction. There are also two hooks on one side of the drawer door.

6. A drawer for a low-voltage power distribution cabinet according to claim 1, characterized in that: A handle is provided on the outer side of the drawer door.

7. A drawer for a low-voltage power distribution cabinet according to claim 1, characterized in that: An inductor is also provided on the outer wall of the inner end of the drawer body, and the inductor is electrically connected to the input end connector and the output end connector respectively.

8. The drawer for a low-voltage power distribution cabinet according to claim 1, characterized in that: Two positioning pins are arranged on the outer wall of the inner end portion of the drawer body.

9. A drawer for a low-voltage power distribution cabinet according to claim 1, characterized in that: A handle is provided on one end of the rotating shaft passing through the drawer door.

10. A drawer for a low-voltage power distribution cabinet according to claim 1, characterized in that: The swing rod is provided with a long slot, one end of the insertion rod passes through the long slot, and the insertion rod is provided with pressing sheets on both sides of the long slot. After the insertion rod is inserted into the long slot, it is fixed by the pressing sheets.

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