CN110993394B - Draw-out type automatic change-over switch with bypass - Google Patents
Draw-out type automatic change-over switch with bypass Download PDFInfo
- Publication number
- CN110993394B CN110993394B CN201911290589.2A CN201911290589A CN110993394B CN 110993394 B CN110993394 B CN 110993394B CN 201911290589 A CN201911290589 A CN 201911290589A CN 110993394 B CN110993394 B CN 110993394B
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- China
- Prior art keywords
- over switch
- frame
- draw
- fixed
- lead screw
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/08—Arrangements to facilitate replacement of a switch, e.g. cartridge housing
Abstract
The invention discloses a draw-out type automatic change-over switch with a bypass, which comprises a draw-out frame, a main change-over switch and a bypass change-over switch, wherein a wiring bar is fixed in the draw-out frame, and the main change-over switch can be connected with or separated from the wiring bar; still include the insertion extraction device, the insertion extraction device includes: the device comprises a beam fixed on a drawer frame, a movable frame arranged between the beam and a wiring row, and guide rails respectively fixed on two opposite side walls of the drawer frame; the both sides of removing the frame are equipped with respectively and to roll gyro wheel in the guide rail, are equipped with lead screw assembly on removing the frame, and lead screw assembly includes first lead screw and nut, and the nut is fixed on removing the frame, and the crossbeam is worn to locate to the rotatable one end of first lead screw, and the both sides of first lead screw are equipped with the installing support respectively, are fixed with the backup pad between two installing supports, and the rotatable setting of main change over switch is in the backup pad. The draw-out type automatic change-over switch with the bypass effectively improves the convenience of maintaining the main change-over switch.
Description
Technical Field
The invention relates to a draw-out type automatic change-over switch with a bypass.
Background
With the development of society, people's requirements for power grids and power transmission and distribution processes are gradually improved, mainly in the aspects of safety, reliability, continuity, easy overhaul and maintenance and the like of power supply equipment, so that the automatic change-over switch with the typical characteristics is widely applied to important places where power failure is not allowed, such as high-rise buildings, communities, hospitals, airports, docks, fire fighting, metallurgy, chemical engineering, textiles and the like. The main function of the automatic change-over switch is that when the power supply of normal power supply goes wrong and fails, the power supply of the power transmission and distribution line is automatically changed from the main power supply to the standby power supply, so that the uninterrupted power supply of the whole circuit is realized, and the continuity and stability requirements of the power consumption of the key load are met. The dual-power transfer switch on the existing market is complex in structure, high in manufacturing cost, inconvenient to operate during overhauling and maintaining and difficult to meet use requirements.
Disclosure of Invention
The invention aims to provide a draw-out type automatic change-over switch with a bypass, which is reasonable in structure and effectively improves the convenience of maintaining a main change-over switch.
In order to achieve the purpose, the technical scheme of the invention is to design a draw-out type automatic change-over switch with a bypass, which comprises a draw-out frame, a main change-over switch and a bypass change-over switch, wherein a wiring bar is fixed in the draw-out frame, the main change-over switch and the bypass change-over switch are respectively positioned at two sides of the wiring bar, the bypass change-over switch is fixed in the draw-out frame, and the main change-over switch can be connected with or separated from the wiring bar; still include inserting draw-out device, main change-over switch sets up in taking out the frame through this inserting draw-out device, inserting draw-out device includes: the device comprises a beam fixed on a drawer frame, a movable frame arranged between the beam and a wiring row, and guide rails respectively fixed on two opposite side walls of the drawer frame; the two sides of the moving frame are respectively provided with a roller capable of rolling in the guide rail, the moving frame is provided with a lead screw component, the lead screw component comprises a first lead screw and a nut in threaded connection with the first lead screw, the nut is fixed on the moving frame and is arranged close to the cross beam, the first lead screw is perpendicular to the cross beam, one end of the first lead screw rotatably penetrates through the cross beam, the two sides of the first lead screw are respectively provided with a mounting bracket, a support plate is fixed between the two mounting brackets, a containing cavity is arranged inside the support plate, a mounting plate for mounting a main change-over switch is arranged on the support plate, the bottom of the mounting plate is connected with a turntable capable of rotating in the containing cavity through a rotating shaft, the top of the support plate is provided with a chute positioned on one side of the mounting plate, a translation slide block is arranged on the chute, and a driving inclined plane is arranged at the bottom of the side surface of the translation slide block facing the mounting plate, the supporting plate is also provided with a sliding hole communicated with the accommodating cavity, a lifting slide block is arranged in the sliding hole, a driven inclined plane matched with the driving inclined plane is arranged on the lifting slide block, a limiting pin is arranged at the bottom of the lifting slide block, a return spring is sleeved on the limiting pin, two ends of the return spring are respectively connected with the bottom of the lifting slide block and the bottom wall of the sliding hole, and a limiting hole for inserting the limiting pin is arranged at the top of the rotary plate; the utility model discloses a translation slide block, including crossbeam, connecting rod, transmission shaft, first lead screw of this transmission shaft perpendicular to, and this transmission shaft passes through the bearing frame to be fixed on the removal frame, be equipped with the connecting rod that is located the installing support outside on the crossbeam, this connecting rod is on a parallel with first lead screw, and the one end that the crossbeam was kept away from to this connecting rod is connected with the rack through the connecting block, be equipped with the transmission shaft that is located between rack and the installing support on the removal frame, the first lead screw of this transmission shaft perpendicular to, and this transmission shaft passes through the bearing frame to be fixed on the removal frame, the one end of transmission shaft is equipped with the gear with rack toothing, and the other end of this transmission shaft is connected with the second lead screw that runs through the translation slider, the translation slider is equipped with the screw hole that supplies the second lead screw to run through, and with second lead screw threaded connection.
Preferably, be equipped with first location marking on the lateral wall of mounting panel, be equipped with the second location marking that corresponds with first location marking on the roof of backup pad.
Preferably, an operation hole is formed in the cross beam, and a handle joint located in the operation hole is arranged at one end of the first screw rod.
Preferably, the mounting bracket is of an L-shaped structure and comprises a vertical plate and a transverse plate which are integrally connected, the vertical plate is fixed on the movable frame, and the supporting plate is fixed on the transverse plate.
The invention has the beneficial effects that: the utility model provides an automatic change-over switch of pull-out type area bypass, its is rational in infrastructure, and has effectively improved the convenience of carrying out the maintenance to main change-over switch.
The working principle of the invention is as follows: when the main change-over switch breaks down and needs to be maintained, the main change-over switch is switched to the bypass change-over switch to enable the load not to be powered off, and then the main change-over switch is pulled out for maintenance. When the main change-over switch is pulled out, the first screw rod can be clockwise rotated by using the special handle, so that the nut and the moving frame fixed with the nut are driven to move towards the direction far away from the wiring bar, in the moving process of the moving frame, the rack can drive the gear to rotate, the gear drives the second screw rod to rotate through the transmission shaft, so that the translation sliding block is driven to move towards the direction far away from the mounting plate along the sliding groove, at the moment, the lifting sliding block can move upwards along the sliding hole under the elastic action of the reset spring, so that the limiting pin can move upwards, the limiting pin can be gradually pulled out from the limiting hole of the turntable, when the main change-over switch is pulled out in place, the main change-over switch is separated from the wiring bar, and the limiting pin is completely separated from the limiting hole, at the moment, the main change-over switch can be maintained, because the turntable connected with the mounting plate can rotate in the accommodating cavity, so that the main change-over switch can be rotated in the maintenance process, so as to maintain the side and back parts of the main transfer switch. After the maintenance is finished, the first positioning identification line on the mounting plate is aligned with the second positioning identification line on the supporting plate, the first screw rod is rotated anticlockwise by using the special handle, so that the moving frame is driven to move towards the direction close to the wiring row, in the process of moving the movable frame, the rack drives the gear to rotate reversely, the gear drives the second screw rod to rotate through the transmission shaft, thereby driving the translation sliding block to move towards the direction close to the mounting plate along the sliding groove, at the moment, the driving inclined plane of the translation sliding block is contacted with the driven inclined plane of the lifting sliding block, so that the lifting sliding block moves downwards along the sliding hole and compresses the return spring, thereby driving the limiting pin to move downwards, enabling the limiting pin to be gradually inserted into the limiting hole of the turntable, when the main change-over switch is inserted in place, the main change-over switch is connected with the wiring bar, meanwhile, the limiting pin is completely inserted into the limiting hole, so that the main change-over switch is prevented from rotating to cause damage in normal work.
Drawings
Fig. 1 is a schematic view of an insertion and extraction device of the present invention.
Fig. 2 is a schematic view of a connection structure of a support plate and a mounting plate in the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The technical scheme of the specific implementation of the invention is as follows:
as shown in fig. 1 and 2, a draw-out type automatic transfer switch with a bypass comprises a draw-out frame, a main transfer switch and a bypass transfer switch, wherein a wiring bar is fixed in the draw-out frame, the main transfer switch and the bypass transfer switch are respectively positioned at two sides of the wiring bar, the bypass transfer switch is fixed in the draw-out frame, and the main transfer switch can be connected with or separated from the wiring bar; still include inserting draw-out device, main change-over switch sets up in taking out the frame through this inserting draw-out device, inserting draw-out device includes: the device comprises a beam 1 fixed on a drawer frame, a movable frame 2 arranged between the beam 1 and a wiring row, and guide rails 3 respectively fixed on two opposite side walls of the drawer frame; the two sides of the moving frame 2 are respectively provided with a roller 4 capable of rolling in the guide rail 3, the moving frame 2 is provided with a screw assembly, the screw assembly comprises a first screw 5 and a nut 6 in threaded connection with the first screw 5, the nut 6 is fixed on the moving frame 2, the nut 6 is arranged close to the cross beam 1, the first screw 5 is perpendicular to the cross beam 1, one end of the first screw 5 is rotatably arranged on the cross beam 1 in a penetrating way, the two sides of the first screw 5 are respectively provided with a mounting bracket 7, a support plate 8 is fixed between the two mounting brackets 7, a containing cavity is arranged inside the support plate 8, a mounting plate 9 for mounting a main change-over switch is arranged on the support plate 8, the bottom of the mounting plate 9 is connected with a turntable 11 capable of rotating in the containing cavity through a rotating shaft 10, the top of the support plate 8 is provided with a chute positioned on one side of the mounting plate 9, a translation sliding block 12 is arranged on the sliding chute, a driving inclined plane is arranged at the bottom of the side surface of the translation sliding block 12 facing the mounting plate 9, a sliding hole communicated with the accommodating cavity is further arranged on the supporting plate 8, a lifting sliding block 13 is arranged in the sliding hole, a driven inclined plane matched with the driving inclined plane is arranged on the lifting sliding block 13, a limiting pin 14 is arranged at the bottom of the lifting sliding block 13, a reset spring 15 is sleeved on the limiting pin 14, two ends of the reset spring 15 are respectively connected with the bottom of the lifting sliding block 13 and the bottom wall of the sliding hole, and a limiting hole for inserting the limiting pin 14 is arranged at the top of the rotary plate 11; be equipped with the connecting rod 16 that is located the installing support 7 outside on crossbeam 1, this connecting rod 16 is on a parallel with first lead screw 5, and the one end that crossbeam 1 was kept away from to this connecting rod 16 is connected with rack 18 through connecting block 17, be equipped with the transmission shaft 19 that is located between rack 18 and the installing support 7 on the removal frame 2, the first lead screw 5 of this transmission shaft 19 perpendicular to, and this transmission shaft 19 passes through bearing frame 20 to be fixed on removal frame 2, the one end of transmission shaft 19 is equipped with the gear 21 with rack 18 meshing, and the other end of this transmission shaft 19 is connected with the second lead screw 22 that runs through translation slider 12, translation slider 12 is equipped with the screw hole that supplies second lead screw 22 to run through, and with second lead screw 22 threaded connection.
A first positioning mark line is arranged on the side wall of the mounting plate 9, and a second positioning mark line corresponding to the first positioning mark line is arranged on the top wall of the supporting plate 8.
An operation hole is arranged on the beam 1, and a handle joint positioned in the operation hole is arranged at one end of the first screw rod 5.
The mounting bracket 7 has an L-shaped structure, the mounting bracket 7 includes a vertical plate 71 and a horizontal plate 72 integrally connected to each other, the vertical plate 71 is fixed to the movable frame 2, and the support plate 8 is fixed to the horizontal plate 72.
The invention has the beneficial effects that: the utility model provides an automatic change-over switch of pull-out type area bypass, its is rational in infrastructure, and has effectively improved the convenience of carrying out the maintenance to main change-over switch.
The working principle of the invention is as follows: when the main change-over switch breaks down and needs to be maintained, the main change-over switch is switched to the bypass change-over switch to enable the load not to be powered off, and then the main change-over switch is pulled out for maintenance. When the main change-over switch is pulled out, the first screw rod 5 can be clockwise rotated by using the special handle, so that the nut 6 and the moving frame 2 fixed with the nut 6 are driven to move towards the direction far away from the wiring bar, in the moving process of the moving frame 2, the rack 18 drives the gear 21 to rotate, the gear 21 drives the second screw rod 22 to rotate through the transmission shaft 19, so that the translation slide block 12 is driven to move towards the direction far away from the mounting plate 9 along the sliding chute, at the moment, the lifting slide block 13 moves upwards along the sliding hole under the elastic force of the reset spring 15, so that the limit pin 14 is driven to move upwards, so that the limit pin 14 is gradually pulled out of the limit hole of the rotary disc 11, when the main change-over switch is pulled out in place, the main change-over switch is separated from the wiring bar, and the limit pin 14 is completely separated from the limit hole, at the moment, the maintenance operation can be carried, the main transfer switch can be rotated during maintenance to facilitate maintenance of the side and rear components of the main transfer switch. After the maintenance is finished, the first positioning identification line on the mounting plate 9 is aligned with the second positioning identification line on the support plate 8, the first screw rod 5 is rotated anticlockwise by using the special handle, so as to drive the moving frame 2 to move towards the direction close to the wiring board, in the moving process of the moving frame 2, the rack 18 drives the gear 21 to rotate reversely, the gear 21 drives the second screw rod 22 to rotate through the transmission shaft 19, so as to drive the translation slide block 12 to move towards the direction close to the mounting plate 9 along the sliding chute, at the moment, the driving inclined plane of the translation slide block 12 is contacted with the driven inclined plane of the lifting slide block 13, so as to enable the lifting slide block 13 to move downwards along the sliding hole and compress the reset spring 15, so as to drive the limit pin 14 to move downwards, so that the limit pin 14 is gradually inserted into the limit hole of the rotary table 11, when the main change-over switch is inserted in place, the main change-over switch is connected with the wiring board, and the limit pin 14 is completely inserted into the limit hole, the rotary plate 11 and the mounting plate 9 cannot rotate, so that the main change-over switch fixed on the mounting plate 9 cannot rotate, and the main change-over switch cannot rotate to cause damage during normal operation.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A draw-out type automatic change-over switch with a bypass comprises a draw-out frame, a main change-over switch and a bypass change-over switch, wherein a wiring bar is fixed in the draw-out frame, the main change-over switch and the bypass change-over switch are respectively positioned at two sides of the wiring bar, the bypass change-over switch is fixed in the draw-out frame, the main change-over switch can be connected with or separated from the wiring bar, the draw-out switch is characterized by further comprising an insertion and extraction device, the main change-over switch is arranged in the draw-out frame through the insertion and extraction device, and the insertion and extraction device comprises: the device comprises a beam fixed on a drawer frame, a movable frame arranged between the beam and a wiring row, and guide rails respectively fixed on two opposite side walls of the drawer frame; the two sides of the moving frame are respectively provided with a roller capable of rolling in the guide rail, the moving frame is provided with a lead screw component, the lead screw component comprises a first lead screw and a nut in threaded connection with the first lead screw, the nut is fixed on the moving frame and is arranged close to the cross beam, the first lead screw is perpendicular to the cross beam, one end of the first lead screw rotatably penetrates through the cross beam, the two sides of the first lead screw are respectively provided with a mounting bracket, a support plate is fixed between the two mounting brackets, a containing cavity is arranged inside the support plate, a mounting plate for mounting a main change-over switch is arranged on the support plate, the bottom of the mounting plate is connected with a turntable capable of rotating in the containing cavity through a rotating shaft, the top of the support plate is provided with a chute positioned on one side of the mounting plate, a translation slide block is arranged on the chute, and a driving inclined plane is arranged at the bottom of the side surface of the translation slide block facing the mounting plate, the supporting plate is also provided with a sliding hole communicated with the accommodating cavity, a lifting slide block is arranged in the sliding hole, a driven inclined plane matched with the driving inclined plane is arranged on the lifting slide block, a limiting pin is arranged at the bottom of the lifting slide block, a return spring is sleeved on the limiting pin, two ends of the return spring are respectively connected with the bottom of the lifting slide block and the bottom wall of the sliding hole, and a limiting hole for inserting the limiting pin is arranged at the top of the rotary plate; the transverse beam is provided with a connecting rod positioned outside the mounting bracket, the connecting rod is parallel to the first screw rod, one end of the connecting rod, far away from the transverse beam, is connected with a rack through a connecting block, the moving frame is provided with a transmission shaft positioned between the rack and the mounting bracket, the transmission shaft is perpendicular to the first screw rod and is fixed on the moving frame through a bearing seat, one end of the transmission shaft is provided with a gear meshed with the rack, the other end of the transmission shaft is connected with a second screw rod penetrating through the translation sliding block, and the translation sliding block is provided with a threaded hole for the second screw rod to penetrate through and to be in threaded connection with the second screw rod; an operation hole is formed in the cross beam, and a handle joint located in the operation hole is arranged at one end of the first screw rod.
2. The draw-out automatic transfer switch with bypass according to claim 1, wherein a first positioning mark line is provided on a side wall of the mounting plate, and a second positioning mark line corresponding to the first positioning mark line is provided on a top wall of the support plate.
3. The draw-out automatic transfer switch with bypass according to claim 2, wherein the mounting bracket is an L-shaped structure and comprises a vertical plate and a horizontal plate which are integrally connected, the vertical plate is fixed on the movable frame, and the supporting plate is fixed on the horizontal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290589.2A CN110993394B (en) | 2019-12-16 | 2019-12-16 | Draw-out type automatic change-over switch with bypass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290589.2A CN110993394B (en) | 2019-12-16 | 2019-12-16 | Draw-out type automatic change-over switch with bypass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110993394A CN110993394A (en) | 2020-04-10 |
| CN110993394B true CN110993394B (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911290589.2A Active CN110993394B (en) | 2019-12-16 | 2019-12-16 | Draw-out type automatic change-over switch with bypass |
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| CN (1) | CN110993394B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112888230B (en) * | 2021-03-30 | 2022-04-08 | 苏州飞腾电器有限公司 | Controller for bypass type automatic change-over switch |
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| DE202012103072U1 (en) * | 2012-08-14 | 2012-08-31 | Schroff Gmbh | Locking element for locking a cover plate to a module rail |
| KR101457196B1 (en) * | 2013-09-27 | 2014-11-03 | (주)아이엠 | Optical disc tray loader assembly |
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| CN110993394A (en) | 2020-04-10 |
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