CN109713603B - Anti-falling device of drawer unit of low-voltage switchgear assembly - Google Patents
Anti-falling device of drawer unit of low-voltage switchgear assembly Download PDFInfo
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- CN109713603B CN109713603B CN201910166832.3A CN201910166832A CN109713603B CN 109713603 B CN109713603 B CN 109713603B CN 201910166832 A CN201910166832 A CN 201910166832A CN 109713603 B CN109713603 B CN 109713603B
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- guide rail
- drawer
- drawer unit
- outer guide
- limiting
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- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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Abstract
An anti-falling device of a drawer unit of a low-voltage switchgear assembly, wherein the drawer unit is supported on a drawer supporting plate, inner guide rails are arranged on two sides of the drawer unit, and clamping plates are arranged at the rear ends of the inner guide rails; an outer guide rail and a limiting lock catch are arranged on two sides of the drawer supporting plate, a limiting mechanism is arranged between the outer guide rail and the drawer supporting plate, and a stop block is arranged at the front part of the outer guide rail; the drawer supporting plate is arranged between the outer guide rails at the two sides of the drawer supporting plate through the inner guide rails at the two sides. The drawer unit can slide outwards through the cooperation of the inner guide rail and the outer guide rail. The device has changed the guide rail device of current drawer unit service condition, increases its anti-drop function on the basis of keeping the drawer unit function, and the drawer unit leaves the cabinet body and need not the operation personnel to pop in the twinkling of an eye, and this device can support the drawer unit of pull-out state in addition, makes the drawer unit keep unsettled under the condition of not separating with the cabinet body, makes things convenient for the operation personnel to carry out simple inspection maintenance to the drawer unit.
Description
Technical Field
The invention relates to a device with an anti-falling function for a drawer unit of a low-voltage switchgear assembly.
Background
The low-voltage switchgear assembly is generally designed as a drawer unit, and the structure of the low-voltage switchgear assembly is shown in fig. 1, wherein a drawer unit 2 is arranged in a cabinet body 1, and the drawer unit 2 is supported by a drawer supporting plate 3 fixed on the cabinet body 1. The drawer type low-voltage switchgear is characterized in that: the universal degree is high, the interchangeability is high, and the drawer unit 2 can be pulled out of the cabinet body 1 for maintenance. However, the drawer unit 2 has the disadvantage that because the weight of the drawer unit 2 is large, when the drawer unit 2 is pulled out of the cabinet body 1 for maintenance, the drawer unit 2 falls down under the action of gravity at the moment of leaving the drawer supporting plate 3, and an operator does not have enough reaction time and strength to support the drawer unit 2 upwards, so that the panel of other drawer units below is easy to collide.
The drawer unit for the low-voltage draw-out type switch cabinet disclosed in the Chinese patent document CN203722108U comprises a frame body, wherein one module height corresponding to the frame body is formed by two half drawer units, a switch mounting plate is arranged in the frame body, a pushing interlocking device and a secondary movable plug-in unit screwing device are further arranged in the frame body, the pushing interlocking device is arranged in the middle of the frame body, the secondary movable plug-in unit screwing device is arranged on the right side of the frame body, and a primary movable plug-in unit capable of forming a power distribution loop with the drawer unit of the frame body is further arranged at the rear part of the frame body.
The drawer unit only reduces the plug-in force of the existing movable plug-in unit, so that the action of the drawer unit is easier, the safety and the reliability are improved, and the maintenance is convenient. However, the problem that the drawer unit is easy to fall off when being pulled out is not solved.
CN102035147a discloses a novel low-voltage cabinet drawer anti-drop device, including anti-drop piece and guide rail, the anti-drop piece passes through the intermediate position department of bolt fastening at the outer face of drawer left side board, the anti-drop piece can rotate around the bolt, the front end of anti-drop piece is equipped with inwards spacing cylinder, the rear end is equipped with decurrent couple, the front end of guide rail is equipped with ascending spacing lug, it has spacing round hole to open to lie in the position department in bolt the place ahead on the drawer left side board, when the drawer is located the drawer compartment, spacing cylinder upwarp top joint is at the top in spacing round hole, couple sagging overlap joint is at the top of guide rail simultaneously, when the drawer outwards slides to its intermediate position and exposes the drawer compartment, the couple can hook spacing lug, when pressing spacing cylinder to the bottom in the spacing round hole down this moment, the couple can break away from spacing lug.
Above-mentioned anti-drop device, when making the couple break away from spacing lug, need manual pushing down spacing cylinder to the bottom in the spacing round hole, this just makes personnel need to carry the drawer unit, and the spacing cylinder of pushing down again, and the operation is inconvenient, has the danger that the drawer unit drops.
Disclosure of Invention
The invention provides an anti-falling device of a drawer unit of low-voltage switchgear, which is convenient to use and can reliably prevent falling.
The invention relates to an anti-falling device of a drawer unit of low-voltage switchgear, which adopts the following technical scheme:
The anti-falling device comprises a drawer unit, a drawer supporting plate, an inner guide rail, a clamping plate and a locking plate, wherein the drawer unit is supported on the drawer supporting plate; an outer guide rail and a limiting lock catch are arranged on two sides of the drawer supporting plate, a limiting mechanism is arranged between the outer guide rail and the drawer supporting plate, and a stop block is arranged at the front part of the outer guide rail; the drawer unit is arranged between the outer guide rails at the two sides of the drawer supporting plate through the inner guide rails at the two sides. The drawer unit can slide outwards through the cooperation of the inner guide rail and the sliding outer guide rail.
The limiting mechanism is characterized in that a limiting groove is formed in the drawer supporting plate, a fixed column is arranged on the sliding outer guide rail, and the fixed column stretches into the limiting groove. The sliding outer guide rail can only slide in the length of the limit groove through the fixed column.
The limiting lock catch comprises a lifting plate and a limiting plate, wherein the lifting plate is arranged on the drawer supporting plate through a rotating shaft, and the limiting plate is connected to the lifting plate and is provided with an inclined plane. The lifting plate is provided with a limiting groove, a limiting column is arranged in the limiting groove, and the limiting column is fixedly arranged on the drawer supporting plate. The lifting plate can rotate around the rotating shaft, and the limiting groove and the limiting column realize the limiting of the rotating angle of the lifting plate.
The limiting lock catch is lifted under the action of the outer guide rail when the drawer unit is in a push-in state, and the drawer unit can slide outwards through the cooperation of the inner guide rail and the outer guide rail. After the drawer unit is pulled out, the limiting lock catch falls down to block the outer guide rail from sliding inwards, and the limiting mechanism blocks the outer guide rail from sliding outwards. The clamping plate on the inner guide rail contacts with the stop block on the outer guide rail to stop the inner guide rail from slipping outwards. When the drawer unit is to be separated from the cabinet body, the drawer unit is slightly lifted upwards, the drawer supporting plate does not block the clamping plate on the inner guide rail any more, and the drawer unit can be moved out. When the drawer unit is pushed in, the inner guide rail slides inwards along the outer guide rail, the clamping plate pushes up the limiting lock catch, the limiting lock catch does not block the outer guide rail any more, and the outer guide rail slides inwards along with the inner guide rail, so that the drawer unit is pushed in.
The invention changes the use condition of the existing drawer unit, increases the anti-falling function on the basis of keeping the function of the drawer unit, and does not need to be lifted by operators at the moment that the drawer unit leaves the cabinet body.
Drawings
Fig. 1 is a schematic view of a drawer unit structure of a conventional low-voltage switchgear assembly.
Fig. 2 is a schematic structural view of the anti-falling device of the drawer unit of the low-voltage switchgear assembly of the present invention.
Fig. 3 is a side view of fig. 2.
FIG. 4 is a schematic drawing showing the inner rail pulled open state in the present invention.
Fig. 5 is a side view of fig. 4.
Fig. 6 is a schematic structural view of the limit lock 6 in the present invention.
Fig. 7 is a schematic view showing a state in which the limit catch falls when the drawer unit is withdrawn.
In the figure: 1. the cabinet body, the drawer unit, the drawer supporting plate, the inner guide rail, the outer guide rail, the limit lock catch, the long waist hole, the fixing column, the clamping plate, the stop block, the lifting plate, the limiting plate, the rotary shaft, the limiting column, the limiting groove and the inclined plane are arranged in sequence in the cabinet body, the drawer unit, the drawer supporting plate, the drawer body, the inner guide rail, the outer guide rail, the limit lock catch, the long waist hole, the fixing column, the clamping plate, the stop block, the lifting plate, the limiting plate, the rotary shaft, the limiting column, the limiting groove and the inclined plane.
Detailed Description
As shown in fig. 2 and 3, the anti-falling device of the drawer unit of the low-voltage switchgear is characterized in that inner guide rails 4 are fixedly arranged on two sides of the drawer unit 2 through bolts, clamping plates 9 are arranged at the rear ends of the inner guide rails 4, and inclined surfaces are arranged at the rear parts of the clamping plates 9. The drawer unit 2 is supported on the drawer supporting plate 3, the drawer supporting plate 3 is fixed on the cabinet body 1, the two sides of the drawer supporting plate 3 are provided with the sliding outer guide rail 5 and the limiting lock catch 6, and the outer guide rail 5 can slide and limit through the limiting mechanism. The limiting mechanism is that long waist holes 7 (limiting grooves) are formed in two sides of the drawer supporting plate 3, fixing columns 8 are arranged on the outer guide rail 5, the fixing columns 8 extend into the long waist holes 7, and the outer guide rail 5 can only slide in the length of the long waist holes 7 through the fixing columns 8. The front part of the outer rail 5 is provided with a stop 10. Lifting and separating are realized between the inner guide rail 4 and the outer guide rail 5 through a clamping plate 9.
The outer guide rail 5 is slidably connected to the drawer supporting plate 3 through the cooperation of the fixing column 8 and the long waist hole 7, and when the inner guide rails 4 at two sides of the drawer unit 2 move outwards, the outer guide rail 5 is driven to slide outwards. The drawer unit 2 is slidable outwards by means of its co-operation of an inner rail 4 with an outer rail 5 on the drawer carrier 3.
As shown in fig. 4 and 5, the drawer unit 2 is withdrawn to block the outer rail 5 from sliding inward, and the fixing posts 8 and the long waist holes 7 block the outer rail 5 from sliding outward. The clamping plate 5 on the inner guide rail is contacted with the stop block 10 on the outer guide rail 5 to stop the inner guide rail 4 from slipping outwards. When the drawer unit 2 is to be separated from the cabinet body 1, the drawer unit 2 is slightly lifted upwards, the drawer supporting plate 3 does not block the clamping plate 9 on the inner guide rail any more, and the drawer unit 2 can be moved out.
The limiting lock catch 6 is shown in fig. 6 and comprises a lifting plate 11 and a limiting plate 12. The lifting plate 11 is arranged on the drawer supporting plate 3 through the rotating shaft 13, a limiting groove 15 is formed in the lifting plate 11, a limiting column 14 is arranged in the limiting groove 15, and the limiting column 14 is fixedly arranged on the drawer supporting plate 3. The landing plate 11 can rotate around the rotating shaft 13, and the limiting groove 15 and the limiting post 14 realize the limiting of the rotating angle, so as to realize lifting and falling. When the landing plate 11 falls down, the bottom surface of the landing plate is lower than the top surface of the outer guide rail 5, so that the limiting lock catch 6 can block the outer guide rail 5. The limiting plate 12 is connected to the landing plate 11 with a bevel 16.
When the drawer unit 2 is pushed in, the inner guide rail 4 slides inwards along the outer guide rail 5, and the inclined surface on the clamping plate 9 at the rear end of the inner guide rail 4 jacks up the inclined surface 16 of the limiting plate 12, so that the whole limiting lock catch 6 is lifted up around the rotating shaft 13, the limiting lock catch 6 does not block the outer guide rail 5 any more, and the drawer unit 2 is pushed in smoothly, as shown in fig. 6. After the drawer unit 2 is pushed in, the lifting plate 11 of the limiting lock catch 6 is arranged on the upper surface of the outer guide rail 5 and is in a lifted state. When the drawer unit 2 is pulled out, the limit catch 6 falls down with the outward movement of the outer rail 5, as shown in fig. 7.
When the drawer unit 2 is to be separated from the cabinet body, the drawer unit 2 is slightly lifted upwards, the drawer supporting plate 4 does not block the clamping plate 9 on the inner guide rail 4 any more, and the drawer unit 2 can be moved out.
Claims (1)
1. An anti-drop device of a low-voltage switchgear drawer unit, wherein the drawer unit is supported on a drawer supporting plate, and is characterized in that: two sides of the drawer unit are provided with inner guide rails, and the rear ends of the inner guide rails are provided with clamping plates; an outer guide rail and a limiting lock catch are arranged on two sides of the drawer supporting plate, a limiting mechanism is arranged between the outer guide rail and the drawer supporting plate, and a stop block is arranged at the front part of the outer guide rail; the drawer unit is arranged between the outer guide rails at the two sides of the drawer supporting plate through the inner guide rails at the two sides, and can slide outwards through the cooperation of the inner guide rails and the sliding outer guide rails;
The limiting mechanism is characterized in that a limiting groove is formed in a drawer supporting plate, a fixed column is arranged on a sliding outer guide rail, and the fixed column stretches into the limiting groove;
The limiting lock catch comprises a lifting plate and a limiting plate, wherein the lifting plate is arranged on the drawer supporting plate through a rotating shaft, and the limiting plate is connected to the lifting plate and is provided with an inclined plane;
the lifting plate is provided with a limiting groove, a limiting column is arranged in the limiting groove, and the limiting column is fixedly arranged on the drawer supporting plate;
When the drawer unit is pushed in, the limiting lock catch is lifted under the action of the outer guide rail, and the drawer unit can slide outwards through the cooperation of the inner guide rail and the outer guide rail; after the drawer unit is pulled out, the limiting lock catch falls down to block the outer guide rail from sliding inwards, and the limiting mechanism blocks the outer guide rail from sliding outwards; the clamping plate on the inner guide rail contacts with the stop block on the outer guide rail to prevent the inner guide rail from slipping outwards; when the drawer unit is to be separated from the cabinet body, slightly lifting the drawer unit upwards, wherein the drawer supporting plate does not block the clamping plate on the inner guide rail any more, and the drawer unit is moved out; when the drawer unit is pushed in, the inner guide rail slides inwards along the outer guide rail, the clamping plate pushes up the limiting lock catch, the limiting lock catch does not block the outer guide rail any more, and the outer guide rail slides inwards along with the inner guide rail, so that the drawer unit is pushed in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166832.3A CN109713603B (en) | 2019-03-06 | 2019-03-06 | Anti-falling device of drawer unit of low-voltage switchgear assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910166832.3A CN109713603B (en) | 2019-03-06 | 2019-03-06 | Anti-falling device of drawer unit of low-voltage switchgear assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109713603A CN109713603A (en) | 2019-05-03 |
| CN109713603B true CN109713603B (en) | 2024-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910166832.3A Active CN109713603B (en) | 2019-03-06 | 2019-03-06 | Anti-falling device of drawer unit of low-voltage switchgear assembly |
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| CN (1) | CN109713603B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9606485D0 (en) * | 1995-03-24 | 1996-06-05 | Chu Leo | Sliding track assembly for drawers |
| US6454372B1 (en) * | 2000-11-16 | 2002-09-24 | Jun-Long Yang | Positioning device for a drawer rail |
| CN2559260Y (en) * | 2002-08-15 | 2003-07-09 | 台湾滑轨股份有限公司 | Drawer sliding rail with anti sliding off device |
| CN201048712Y (en) * | 2007-06-29 | 2008-04-23 | 东莞市石龙万通实业有限公司 | Two-folding self-locking sliding rail |
| CN201468546U (en) * | 2009-07-29 | 2010-05-19 | 朱建华 | Limiting device of drawer slide rail |
| CN203328274U (en) * | 2013-06-23 | 2013-12-11 | 洪闻凯 | Easily-disassembled type drawer guide rail |
| CN203576001U (en) * | 2013-11-13 | 2014-05-07 | 莆田市力天红木艺雕有限公司 | Drawer dropping-preventing mechanism |
| CN203787836U (en) * | 2014-02-24 | 2014-08-20 | 泰豪科技股份有限公司 | Suspension device capable of preventing low-voltage cabinet drawer from falling off |
| CN203932772U (en) * | 2014-05-23 | 2014-11-05 | 宁波通诚电气有限公司 | A kind of Novel anti-dropping device for drawer of low-voltage cabinet |
| CN209929832U (en) * | 2019-03-06 | 2020-01-10 | 山东爱普电气设备有限公司 | Anti-falling device of drawer unit of low-voltage complete switch equipment |
-
2019
- 2019-03-06 CN CN201910166832.3A patent/CN109713603B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9606485D0 (en) * | 1995-03-24 | 1996-06-05 | Chu Leo | Sliding track assembly for drawers |
| US6454372B1 (en) * | 2000-11-16 | 2002-09-24 | Jun-Long Yang | Positioning device for a drawer rail |
| CN2559260Y (en) * | 2002-08-15 | 2003-07-09 | 台湾滑轨股份有限公司 | Drawer sliding rail with anti sliding off device |
| CN201048712Y (en) * | 2007-06-29 | 2008-04-23 | 东莞市石龙万通实业有限公司 | Two-folding self-locking sliding rail |
| CN201468546U (en) * | 2009-07-29 | 2010-05-19 | 朱建华 | Limiting device of drawer slide rail |
| CN203328274U (en) * | 2013-06-23 | 2013-12-11 | 洪闻凯 | Easily-disassembled type drawer guide rail |
| CN203576001U (en) * | 2013-11-13 | 2014-05-07 | 莆田市力天红木艺雕有限公司 | Drawer dropping-preventing mechanism |
| CN203787836U (en) * | 2014-02-24 | 2014-08-20 | 泰豪科技股份有限公司 | Suspension device capable of preventing low-voltage cabinet drawer from falling off |
| CN203932772U (en) * | 2014-05-23 | 2014-11-05 | 宁波通诚电气有限公司 | A kind of Novel anti-dropping device for drawer of low-voltage cabinet |
| CN209929832U (en) * | 2019-03-06 | 2020-01-10 | 山东爱普电气设备有限公司 | Anti-falling device of drawer unit of low-voltage complete switch equipment |
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| Publication number | Publication date |
|---|---|
| CN109713603A (en) | 2019-05-03 |
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