Manual operation interlocking mechanism for drawer unit of power distribution cabinet

Abstract

The utility model relates to a power distribution cabinet drawer unit manual operation interlocking mechanism which comprises a drawer, a partition plate and a manual operation mechanism. A circuit breaker is fixed on a drawer bottom plate through a circuit breaker support. The device is characterized in that a manual gear lever mechanism is fixed on the drawer bottom plate and comprises a gear lever and a manual mechanism; the manual operation mechanism comprises a toggle slide block and a handle switch, the handle switch is provided with a switching-on gear, a switching-off gear, an experiment gear and a driving gear-toggle slide block transmission chain, and a gear lever is driven to transversely move so as to control the drawer to be interlocked in different states; the blocking groove is fixed to the partition plate, a gap (A) is formed in the middle of the blocking groove in the front view, an interval (B) is formed between the left blocking position and the right blocking position in the side view, and the blocking rod is blocked when the handle switch is in the non-opening gear, so that the drawer is limited to stretch out. A square tube is sleeved on the square tube separation blade, and the square tube separation blade is fixed at the tail end of the drawer bottom plate and fixedly connected with the secondary plug-in. The utility model has the advantages of simple structure and convenience in assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a manual interlocking mechanism for a drawer unit of a power distribution cabinet. Background Art

[0002] The functional unit room of the traditional structure of the distribution cabinet is usually equipped with a manual push interlocking mechanism. The traditional manual interlocking mechanism mostly adopts multi-stage cam and connecting rod transmission. Its transmission components are usually metal plates (such as steel plates with a thickness of 2-3mm), but there are problems such as long transmission chain and complex assembly. Summary of the Invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a structure with simple structure, easy operation, material saving and convenient installation.

[0004] To achieve the above-mentioned purpose, the utility model adopts a manual interlocking mechanism of a drawer unit of a power distribution cabinet, comprising a drawer, a partition, and a manual operating mechanism, wherein the circuit breaker is fixed to the bottom plate of the drawer by a circuit breaker bracket; the utility model is characterized in that the manual operating lever mechanism is fixed to the bottom plate of the drawer, comprising a lever and the manual operating mechanism; the manual operating mechanism comprises a toggle slider and a handle switch, the handle switch is arranged on the front plate of the drawer, and has three gear positions: closing, opening, and testing. When the handle switch rotates, the gear drives the toggle slider to move horizontally through the square rod, thereby pulling the operating mechanism of the circuit breaker (17) and driving the lever fixed on the toggle slider to move synchronously; the retaining groove is fixed on the partition, and there is a gap in the middle of the retaining groove in the front view direction to allow the lever to pass through. When viewed from the side, a gap is formed on both sides of the left and right blocking positions to limit the lateral movement of the lever. When the handle switch is not in the opening gear position, the front inner side wall of the retaining groove blocks the lever, thereby limiting the extension of the drawer; the square tube retaining piece is sleeved with a square tube (13), fixed to the end of the drawer bottom plate, and fixedly connected to the secondary plug-in.

[0005] Preferably, when the handle switch is turned to the opening position, the shift lever is opposite to the gap, and the width of the gap is greater than the diameter of the shift lever when viewed from the front. When the handle switch is pulled outward, the shift lever passes through the gap and the drawer can be completely pulled out; when the handle switch is in the closing position, the shift lever is positioned on the side of the narrow groove limiting area of the shift groove, and the drawer cannot be pulled out; when the handle switch is turned to the test position, the shift lever is positioned on the side of the wide groove limiting area of the shift groove, and the drawer can be pulled out to the maximum length of the gap.

[0006] Preferably, the height and length of the secondary plug-in are smaller than the square tube, the width of the interval is smaller than the inner diameter of the square tube minus the thickness of the square tube baffle, and the secondary plug-in is not disconnected when the drawer is pulled out a distance smaller than the interval.

[0007] Preferably, the manual gear lever mechanism further includes a spring; when the handle switch turned to the test position is pulled outwards, after the drawer travels the length of the interval, the retaining groove blocks the gear lever, and at this time the secondary plug-in does not disconnect. When the handle switch is turned to the test gear position, if the position is not locked, the spring will pull the manual gear lever mechanism to move, driving the handle switch back to the off position.

[0008] Preferably, if the handle switch is to be turned from the on position to the off position, it needs to be first turned to the test position and wait to be pulled back to the off position by the spring; if the handle switch is only pulled to the off position, the circuit breaker operating mechanism cannot be fixed in the off position.

[0009] Preferably, the manual gear lever mechanism further includes a square rod and a gear; the axis of the handle switch is connected to the square rod in a pluggable manner, the gear is connected to the square rod in a pluggable manner, the gear meshes with the tooth groove on the toggle slider, and the gear lever is vertically installed on the upper plane of the toggle slider. When the handle switch rotates, the gear rotates synchronously, the toggle slider moves horizontally left and right, and the gear lever is driven to move horizontally left and right synchronously. It should be noted that only when the handle switch is in the off position can the drawer be fully pulled out; when in the on and test gear positions, the gear lever is blocked by the side wall of the retaining groove, and the movement of the drawer is restricted. The transmission component can be a metal plate (such as a steel plate with a thickness of 2-3 mm), or other wear-resistant materials. Description of the Drawings

[0010] Figure 1 Right top view of the drawer unit with the right side plate of the drawer omitted when the drawer of the present utility model is closed.

[0011] Figure 2 Diagram of the manual gear lever mechanism of the present utility model.

[0012] Figure 3 Diagram of the handle switch of the present utility model in the off position.

[0013] Figure 4 Diagram of the handle switch of the present utility model in the test position.

[0014] Figure 5 Diagram of the handle switch of the present utility model in the on position.

[0015] Figure 6 Top view of the drawer unit pulled out to the maximum position when the handle switch of the present utility model is in the test gear position.

[0016] Figure 7 Bottom view of the drawer partition and the retaining groove of the present utility model.

[0017] The figure includes: drawer (1), drawer front panel (2), partition (3), retaining groove (4), manual operation mechanism (5), handle switch (6), square rod (7), manual operation gear lever mechanism (8), gear lever (9), sliding block (10), gear (11), square tube baffle (12), square tube (13), secondary plug-in (14), spring (15), circuit breaker bracket (16), circuit breaker (17), gap (A), interval (B). Detailed implementation mode

[0018] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will combine the drawings to make a detailed description of the specific implementation mode of the present utility model. Many specific details are set forth in the following description in order to fully understand the present invention; however, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0019] Such as Figure 1 、 7 A manual operation interlocking mechanism for a power distribution cabinet drawer unit, comprising a drawer (1), a partition (3), and a manual operation mechanism (5). The circuit breaker (17) is fixed to the bottom plate of the drawer (1) by a circuit breaker bracket (16). It is characterized in that the manual operation gear lever mechanism (8) is fixed on the bottom plate of the drawer (1) and comprises a gear lever (9) and the manual operation mechanism (5). The manual operation mechanism (5) comprises a sliding block (10) and a handle switch (6). The handle switch is arranged on the drawer front panel and has three positions: closing, opening, and testing. When it rotates, it drives the gear through the square rod to drive the sliding block to move horizontally, thereby pulling the operating mechanism of the circuit breaker (17) and driving the gear lever (9) fixed on the sliding block (10) to move synchronously. The retaining groove (4) is fixed on the partition (3). There is a gap (A) in the middle of its front view direction that allows the gear lever (9) to pass through, and intervals (B) are formed on the left and right sides in the side view to limit the lateral movement of the gear lever (9). When the handle switch (6) is not in the opening position, the front inner wall of the retaining groove (4) blocks the gear lever (9).

[0020] Such as Figure 3 When the handle switch (6) is turned to the opening position, the gear lever (9) is directly opposite to the gap (A). When viewed from the front, the width of the gap is greater than the diameter of the gear lever. When the handle switch (6) is pulled outwards, the gear lever (9) passes through the gap (A), and the drawer (1) can be completely pulled out.

[0021] Such as Figure 2 、 4, when the handle switch (6) is turned to the test position, the position of the shift lever (9) is in the wide slot limiting area of the retaining slot (4), and the drawer (1) can be pulled out at most by the length of the interval (B). Pull the handle switch (6) turned to the test position outwards. After the drawer (1) travels the length of the interval (B), the retaining slot (4) blocks the shift lever (9). At this time, the secondary plug-in unit (14) does not disconnect.

[0022] As Figure 5 , when the handle switch (6) is in the closing gear position, the position of the shift lever (9) is in the narrow slot limiting area of the retaining slot (4), and the drawer (1) cannot be pulled out.

[0023] As Figure 1 、 6 , a square tube (13) is sleeved on the square tube retaining piece (12), which is fixed at the end of the bottom plate of the drawer (1) and fixedly connected to the secondary plug-in unit (14). The height and length of the secondary plug-in unit (14) are smaller than those of the square tube (13). The width of the interval (B) is smaller than the inner diameter of the square tube (13) minus the thickness of the square tube retaining piece (12). When the drawer (1) is pulled out by a distance less than the interval (B), the secondary plug-in unit (14) is not disconnected.

[0024] As Figure 2 , the manual shift lever mechanism (8) further includes a square rod (7), a gear (11), and a spring (15); the axis of the handle switch (6) is connected to the square rod (7) in a plug-in manner, the gear (11) is connected to the square rod (7) in a plug-in manner, the gear (11) meshes with the tooth groove on the toggle slider (10), and the shift lever (9) is vertically installed on the upper plane of the toggle slider (10); when the handle switch (6) rotates, the gear (11) rotates synchronously, the toggle slider (10) moves horizontally left and right, and the shift lever (9) is driven to move horizontally left and right synchronously. If the handle switch (6) is to be turned from the closing gear position to the opening gear position, it needs to be turned to the test gear position first and wait to be pulled back to the opening gear position by the spring (15); if the handle switch (6) is only pulled to the opening gear position, the operating mechanism of the circuit breaker (17) cannot be fixed in the opening position. When the handle switch (6) is turned to the test gear position, if the position is not locked, the spring (15) will pull the manual shift lever mechanism (8) to move, driving the handle switch (6) back to the opening gear position.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual operation interlocking mechanism for a distribution cabinet drawer unit, comprising a drawer (1), a partition board (3), a manual operation mechanism (5), and a circuit breaker (17) fixed to the bottom plate of the drawer (1) by a circuit breaker bracket (16); characterized in that, The manual shift lever mechanism (8) is fixed on the bottom plate of the drawer (1) and includes a shift lever (9) and the manual operation mechanism (5); the manual operation mechanism (5) includes a toggle slider (10) and a handle switch (6). The handle switch (6) is arranged on the front panel (2) of the drawer and has three gears: closing, opening, and testing. When it rotates, it drives the gear (11) through a square rod (7) to drive the toggle slider (10) to move horizontally, thereby driving the shift lever (9) fixed on the toggle slider (10) to move synchronously and pulling the operating mechanism of the circuit breaker (17) limited therein; the retaining groove (4) is fixed on the partition plate (3), and there is a gap (A) in the middle of its front view direction that allows the shift lever (9) to pass through. When viewed from the side, intervals (B) are formed on both the left and right sides to limit the lateral movement of the shift lever (9). When the handle switch (6) is not in the opening gear position, the inner front wall of the retaining groove (4) blocks the shift lever (9), thereby restricting the drawer (1) from extending; a square tube baffle (12) is sleeved with a square tube (13) and is fixed at the end of the bottom plate of the drawer (1) and is fixedly connected to the secondary plug-in (14).

2. The manual operation interlocking mechanism of a distribution cabinet drawer unit according to claim 1, characterized in that, When the handle switch (6) is turned to the opening gear position, the shift lever (9) is aligned with the gap (A). When viewed from the front, the width of the gap (A) is greater than the diameter of the shift lever (9). Pull the handle switch (6) outwards, and the shift lever (9) passes through the gap (A), and the drawer (1) can be fully pulled out; when the handle switch (6) is in the closing gear position, the position of the shift lever (9) is on the side of the narrow slot limiting area of the retaining groove (4), and the drawer (1) cannot be pulled out; when the handle switch (6) is turned to the test position, the position of the shift lever (9) is on the side of the wide slot limiting area of the retaining groove (4), and the drawer (1) can be pulled out no more than the length of the interval (B).

3. A manual operation interlocking mechanism for a distribution cabinet drawer unit according to claim 1, characterized in that, The height and length of the secondary plug-in (14) are less than those of the square tube (13), the width of the interval (B) is less than the inner diameter of the square tube (13) minus the thickness of the square tube baffle (12), and the secondary plug-in (14) is not disconnected when the drawer (1) is pulled out no more than the distance of the interval (B).

4. A manual operation interlocking mechanism for a distribution cabinet drawer unit according to claim 2 or 3, characterized in that, The manual shift lever mechanism (8) further includes a spring (15); when the handle switch (6) turned to the test position is pulled outwards, after the drawer (1) travels the length of the interval (B), the retaining groove (4) blocks the shift lever (9). At this time, the secondary plug-in (14) is not disconnected. When the handle switch (6) is turned to the test gear position, if the position is not locked, the spring (15) will pull the manual shift lever mechanism (8) to move, driving the handle switch (6) back to the opening gear position.

5. A manual operation interlocking mechanism for a distribution cabinet drawer unit according to claim 4, characterized in that, If the handle switch (6) wants to be turned from the closing gear position to the opening gear position, it needs to be turned to the test gear position first and wait to be pulled back to the opening gear position by the spring (15); if the handle switch (6) is only pulled to the opening gear position, the operating mechanism of the circuit breaker (17) cannot be fixed in the opening position.

6. The manual operation interlocking mechanism of a distribution cabinet drawer unit according to claim 1, wherein The manual gear lever mechanism (8) further includes a square rod (7) and a gear (11); the axis of the handle switch (6) is connected to the square rod (7) in a pluggable manner, the gear (11) is connected to the square rod (7) in a pluggable manner, the gear (11) meshes with the tooth groove on the sliding block (10), the gear lever (9) is vertically installed on the upper plane of the sliding block (10), when the handle switch (6) rotates, the gear (11) rotates synchronously, the sliding block (10) moves horizontally left and right, and the gear lever (9) is driven to move horizontally left and right synchronously.

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