Locking mechanism for drawer of low-voltage power distribution cabinet

Abstract

The utility model relates to a locking mechanism for a low-voltage power distribution cabinet drawer. The locking mechanism comprises a support, a rotating shaft, a special-shaped gear, an insertion 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 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 in a sliding mode in the width direction of the drawer body. And the gear is arranged on a bottom plate of the drawer. According to the utility model, the drawer body is effectively prevented from being opened by mistake due to external vibration after being installed in the low-voltage power distribution cabinet.

Description

Technical Field

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

[0002] Low-voltage switchgear, also known as low-voltage distribution cabinet, is a type of electrical equipment. The manufacturer is responsible for completing all internal electrical and mechanical connections and completely assembling one or more low-voltage switchgear and related control, measurement, signaling, protection, and regulation equipment using structural components.

[0003] Currently, because drawers in low-voltage distribution cabinets often need to be pulled out for commissioning and maintenance, ensuring safe use is crucial. Furthermore, repeated push-and-pull operations can cause drawer shake, which can affect the fit of connectors. Minimizing drawer shake can better ensure cabinet performance.

[0004] It is hoped to provide a locking mechanism for a low-voltage distribution cabinet drawer in order to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a locking mechanism for a drawer of a low-voltage distribution cabinet, which, after being installed on the drawer, effectively prevents the drawer from being accidentally opened due to external vibration after being installed in the low-voltage distribution cabinet.

[0006] In order to achieve the purpose of the above utility model, a locking mechanism for a low-voltage distribution cabinet drawer is provided, comprising

[0007] Bracket, rotating shaft, special-shaped gear, plug rod, rocker arm, first rack, gear and second rack;

[0008] The bracket shown is fixed inside the drawer and is close to the side of the drawer door;

[0009] 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;

[0010] The heterosexual gear is sleeved and fixed on one end of the rotating shaft close to the bracket;

[0011] The insertion rod is fixed on the heterogeneous gear and is parallel to the rotating shaft;

[0012] The insertion rod passes through the swing rod and is connected to the swing rod;

[0013] The first rack is horizontally slidably arranged on the bottom plate of the drawer along the width direction of the drawer body, and the first rack is provided with an inserting through hole, and the lower end of the swing rod is inserted into the inserting through hole;

[0014] The second rack is horizontally slidably arranged on the bottom plate of the drawer along the width direction of the drawer body, and the teeth on the first rack and the second rack face each other;

[0015] The gear is arranged on the bottom plate of the drawer and is located between the first rack and the second rack. The gear is meshed with the first rack and the second rack respectively.

[0016] 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.

[0017] Furthermore, a configuration block is provided at the lower portion of the rocker arm.

[0018] Preferably, a handle is provided on the end of the rotating shaft passing through the drawer door.

[0019] Preferably, 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 pieces on both the left and right sides of the long slot, and the insertion rod is fixed by the pressing pieces after being inserted into the long slot.

[0020] The utility model provides a locking mechanism for a low-voltage distribution cabinet drawer, which has the following advantages compared with the prior art:

[0021] (1) By setting a locking mechanism, by turning the handle, the shaft rotates, causing the opposite gear to rotate, driving the insertion rod to rotate and causing the rocker arm to swing, thereby driving the first rack to move linearly. Since the first rack and the second rack are both engaged with the gears, the gears rotate, causing the second rack to move 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 vibration of the low-voltage distribution cabinet;

[0022] (2) Simple structure and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a locking mechanism for a low-voltage distribution cabinet drawer in this embodiment. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of a locking mechanism for a low-voltage distribution cabinet drawer in this embodiment. Figure 2 . DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1As shown, a locking mechanism for a low-voltage distribution cabinet drawer includes a bracket 1, a rotating shaft 2, a special-shaped gear 3, a plug rod 4, a rocker arm 5, a first rack 6, a gear 7 and a second rack 8; the bracket 1 is fixed in the drawer and is close to one side of the drawer door 3; the rotating shaft 2 is horizontally rotated and arranged on the upper part of the bracket 1, and one end of the rotating shaft 2 passes through the drawer door 3; in this embodiment, in order to facilitate the rotation of the rotating shaft 2, a handle 9 is provided on the end of the rotating shaft 2 passing through the drawer door.

[0027] The special-shaped gear 3 is sleeved and fixed to the end of the rotating shaft near the bracket 1; the insertion rod 4 is fixed to the special-shaped gear 3 and is parallel to the rotating shaft 2. The insertion rod 4 passes through the swing rod 5 and is connected to the swing rod 5. In this embodiment, the swing rod 5 is provided with a long slot 9, through which one end of the insertion rod 4 passes. The insertion rod 4 is provided with pressure plates 10 on both sides of the long slot 9. After the insertion rod 4 is inserted into the long slot 9, it is fixed by the pressure plates 10. This arrangement facilitates the installation and adjustment of the swing rod and the insertion rod.

[0028] The first rack 6 is horizontally slidable along the width direction of the drawer on the bottom plate of the drawer, and the first rack 6 is provided with a plug-in hole 11, and the lower end of the rocker rod 5 is plugged into the plug-in hole 11; the second rack 8 is horizontally slidable along the width direction of the drawer on the bottom plate of the drawer, and the teeth on the first rack 6 and the second rack 8 face each other; the gear 7 is set on the bottom plate of the drawer and is located between the first rack 6 and the second rack 8, and the gear 7 is respectively engaged with the first rack 6 and the second rack 8.

[0029] After the drawer is assembled and installed in the corresponding position of the low-voltage distribution cabinet, by turning the handle 9, the rotating shaft 2 rotates, causing the special-shaped gear 3 to rotate, driving the insertion rod 4 to rotate, causing the rocker bar 5 to swing, thereby driving the first rack 6 to move in a straight line. Since the first rack 6 and the second rack 8 are both engaged with the gear 7, the gear 7 rotates, causing the second rack 8 to move in the opposite direction of the first rack 6. Finally, one end of the second rack 8 extends out of the avoidance hole of the drawer and is inserted into the corresponding jack in the low-voltage distribution cabinet, effectively preventing the drawer from sliding in the cabinet due to the vibration of the low-voltage distribution cabinet.

[0030] In this embodiment, if Figure 2 As shown, a partition 12 is vertically fixed on the bracket 1, and a special-shaped limiting groove 13 is provided on the partition 12. The special-shaped limiting groove 13 passes through the front and back sides of the partition 12, and the insertion rod 4 passes through the special-shaped limiting groove 25. This arrangement not only guides the insertion rod 4, but also limits the insertion rod 4.

[0031] In this embodiment, a configuration block 14 is provided at the lower portion of the rocker arm 5 to effectively prevent the rocker arm 5 from malfunctioning due to vibration.

[0032] 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 within the scope defined by the claims of this application.

Claims

1. A locking mechanism for a low-voltage distribution cabinet drawer, characterized in that: include Bracket, rotating shaft, special-shaped gear, plug rod, rocker arm, first rack, gear and second rack; The bracket shown is fixed inside the drawer and is close to the 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 along the width direction of the drawer body, and the first rack is provided with an inserting through hole, and the lower end of the swing rod is inserted into the inserting through hole; The second rack is horizontally slidably arranged on the bottom plate of the drawer 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 and is located between the first rack and the second rack. The gear is meshed with the first rack and the second rack respectively.

2. A locking mechanism for a low-voltage distribution cabinet drawer according to claim 1, characterized in that: 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.

3. A locking mechanism for a low-voltage distribution cabinet drawer according to claim 2, characterized in that: A configuration block is provided at the lower portion of the rocker arm.

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

5. The locking mechanism for a low-voltage distribution cabinet drawer 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 plates on both sides of the long slot. After the insertion rod is inserted into the long slot, it is fixed by the pressing plates.

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