CN110931287A - Drawable dual-power automatic transfer switch - Google Patents
Drawable dual-power automatic transfer switch Download PDFInfo
- Publication number
- CN110931287A CN110931287A CN201911290590.5A CN201911290590A CN110931287A CN 110931287 A CN110931287 A CN 110931287A CN 201911290590 A CN201911290590 A CN 201911290590A CN 110931287 A CN110931287 A CN 110931287A
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- China
- Prior art keywords
- wiring
- lead screw
- frame
- transfer switch
- cross beam
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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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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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
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
- H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements
Abstract
The invention discloses a withdrawable dual-power automatic transfer switch which comprises a drawing frame and two transfer switches, wherein the rear end of the drawing frame is provided with a wiring bar, and the two transfer switches can be connected with or separated from the wiring bar; the two change-over switches are arranged up and down and are arranged in the drawing frame through the inserting and drawing mechanism; the insertion and extraction mechanism includes: the device comprises a cross beam fixed at the front end of the drawer frame, a movable frame arranged between the cross beam and a base, 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 assembly, the lead screw assembly comprises a lead screw and a lead screw nut connected with the lead screw, the lead screw nut is fixed on the moving frame, the lead screw is perpendicular to the cross beam, one end of the lead screw is rotatably arranged on the cross beam in a penetrating mode, and the change-over switch is fixed on the moving frame. The drawable dual-power automatic transfer switch is reasonable in structure and convenient to overhaul and maintain.
Description
Technical Field
The invention relates to a withdrawable dual-power automatic transfer switch.
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 withdrawable dual-power automatic change-over switch which is reasonable in structure and convenient to overhaul and maintain.
In order to achieve the purpose, the invention provides a drawable dual-power automatic transfer switch which comprises a drawing frame and two transfer switches, wherein the rear end of the drawing frame is provided with a base, the base is provided with a wiring bar, and the two transfer switches can be connected with or separated from the wiring bar;
the insertion and extraction mechanism includes: the device comprises a cross beam fixed at the front end of the drawer frame, a movable frame arranged between the cross beam and a base, 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 assembly, the lead screw assembly comprises a lead screw and a lead screw nut in threaded connection with the lead screw, the lead screw nut is fixed on the moving frame and is arranged close to the cross beam, the lead screw is perpendicular to the cross beam, one end of the lead screw is rotatably arranged on the cross beam in a penetrating way, and the change-over switch is fixed on the moving frame through a bracket;
the guide rail comprises a bottom plate, a top plate and a side plate which is integrally connected between the bottom plate and the top plate; the inner side of the side plate is provided with a first touch button and a second touch button which are sequentially arranged from back to front, the drawing frame is provided with a connection in-place indicator lamp and a drawing in-place indicator lamp, the connection in-place indicator lamp is electrically connected with the first touch button, the drawing in-place indicator lamp is electrically connected with the second touch button, a baffle plate positioned between the side plate and the moving frame is further connected between the bottom plate and the top plate, two sides of the moving frame are respectively bent upwards and vertically to form a bent edge, the bent edge is provided with a guide hole, a movable rod is penetrated in the guide hole and is perpendicular to the baffle plate, two ends of the movable rod are respectively provided with a pressure head and a convex ring, the convex ring is arranged away from the baffle plate, a spring sleeved on the movable rod is connected between the convex ring and the bent edge, and the baffle plate is provided with a first positioning hole and a second positioning hole for the pressure head to pass through, the first positioning hole and the second positioning hole correspond to the first touch button and the second touch button respectively, a first driving inclined plane used for driving the pressure head to withdraw from the first positioning hole is arranged on the hole wall of the first positioning hole, a second driving inclined plane used for driving the pressure head to withdraw from the second positioning hole is arranged on the hole wall of the second positioning hole, and the pressure head is provided with a first driven inclined plane matched with the first driving inclined plane and a second driven inclined plane matched with the second driving inclined plane.
Preferably, the end of the pressure head is in a spherical crown shape.
Preferably, an operation hole is formed in the cross beam, and a rotating head located in the operation hole is arranged at one end of the lead screw.
Preferably, two ends of the cross beam are respectively and fixedly connected with the drawing frame through positioning pins.
Preferably, be equipped with first wiring district and the second wiring district that is located first wiring district below on the base, the terminal block includes: the first wiring block, the second wiring block and the third wiring block are arranged in the first wiring area, and the fourth wiring block, the fifth wiring block and the sixth wiring block are arranged in the second wiring area; first line bank, second line bank and third line bank from top to bottom arrange in proper order, fourth line bank, fifth line bank and sixth line bank from top to bottom arrange in proper order.
Preferably, the two change-over switches are respectively a first change-over switch and a second change-over switch, the first change-over switch is located above the second change-over switch, and the first change-over switch is provided with a first connection assembly corresponding to the first wiring bank, a second connection assembly corresponding to the second wiring bank, and a third connection assembly corresponding to the third wiring bank; and the second change-over switch is provided with a fourth connecting assembly corresponding to the fourth wiring row, a fifth connecting assembly corresponding to the fifth wiring row and a sixth connecting assembly corresponding to the sixth wiring row.
The invention has the beneficial effects that: the drawable dual-power automatic change-over switch is reasonable in structure and convenient to overhaul and maintain.
The working principle of the invention is as follows: the two change-over switches can be mutually main switches or bypass switches, when the two change-over switches are in a connection state, one of the change-over switches is used for supplying power to a user, and therefore the other change-over switch can be pulled out for overhauling and maintaining; and when the rotary switch is in a connection state, the pressure head on the movable rod penetrates through the first positioning hole on the baffle plate and presses the first touch button so as to enable the connection in-place indicator lamp to be lightened. When the change-over switch is overhauled and maintained, a special tool is used for clockwise rotating the rotating head, the rotating head drives the screw rod to rotate, and further drives the screw rod nut and the moving frame fixed with the screw rod nut to move towards the direction far away from the base, so that each connecting assembly on the change-over switch is separated from the corresponding connecting row on the base; and when the movable frame moves, the movable rod and the pressure head are driven to move, the first driven inclined surface on the pressure head is contacted with the first driving inclined surface on the first positioning hole, the pressure head moves towards the direction far away from the first touch button under the action of the first driving inclined surface, the indicator light connected in place is extinguished, and the pressure head drives the movable rod to stretch the spring, when the first driven inclined surface on the pressure head is separated from the first driving inclined surface, the pressure head exits from the first positioning hole, the movable rod continues to move along with the movable frame, when the movable rod moves to the position corresponding to the second positioning hole, the movable rod drives the pressure head to pass through the second positioning hole and press the second touch button under the action of the elastic restoring force of the spring, so that the indicating lamp in place is pulled out and is lightened to prompt an operator that the change-over switch is in a pulled-out state, and the change-over switch can be conveniently and safely overhauled and maintained. After the completion, a special tool is used for anticlockwise rotating the rotating head, so that the movable frame is driven to move towards the direction close to the base, the movable rod and the pressure head are driven to move, a second driven inclined surface on the pressure head is in contact with a second driving inclined surface on the second positioning hole, the pressure head moves towards the direction far away from the second touch button under the action of the second driving inclined surface, the in-place indicator lamp is pulled out and is extinguished, the pressure head drives the movable rod to stretch the spring, when the second driven inclined surface on the pressure head is separated from the second driving inclined surface, the pressure head exits from the second positioning hole, the movable rod moves continuously along with the movable frame, when the movable rod moves to the position corresponding to the first positioning hole, the movable rod drives the pressure head to penetrate through the first positioning hole and press the first touch button under the action of the elastic restoring force of the spring so as to light the in-place indicator lamp, and at the moment, each connecting assembly on, the change-over switch is in a connection state and can be normally used, so that the whole overhauling and maintenance operation is completed.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a side view schematic of the present invention.
Fig. 3 is a schematic view of the insertion and extraction mechanism of the present invention.
Fig. 4 is an enlarged view at a in fig. 3.
Fig. 5 is an enlarged view at B in fig. 3.
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 to 5, an extractable dual power supply automatic transfer switch comprises a rack 1 and two transfer switches, wherein a base 2 is arranged at the rear end of the rack 1, a wiring bar is arranged on the base 2, and the two transfer switches can be connected with or separated from the wiring bar;
the insertion and extraction mechanism 3 includes: a cross beam 4 fixed at the front end of the drawer frame 1, a moving frame 5 arranged between the cross beam 4 and the base 2, and guide rails respectively fixed on two opposite side walls of the drawer frame 1; the two sides of the moving frame 5 are respectively provided with a roller 6 capable of rolling in the guide rail, the moving frame 5 is provided with a lead screw assembly, the lead screw assembly comprises a lead screw 7 and a lead screw nut 8 in threaded connection with the lead screw 7, the lead screw nut 8 is fixed on the moving frame 5, the lead screw nut 8 is arranged close to the cross beam 4, the lead screw 7 is perpendicular to the cross beam 4, one end of the lead screw 7 is rotatably arranged on the cross beam 4 in a penetrating way, and the change-over switch is fixed on the moving frame 5 through a support;
the guide rail comprises a bottom plate 9, a top plate and a side plate 10 integrally connected between the bottom plate 9 and the top plate; a first touch button 11 and a second touch button 12 are arranged on the inner side of the side plate 10, the first touch button 11 and the second touch button 12 are sequentially arranged from back to front, an in-place connection indicator lamp 13 and a pull-out-in-place indicator lamp 14 are arranged on the pull frame 1, the in-place connection indicator lamp 13 is electrically connected with the first touch button 11, the pull-out-in-place indicator lamp 14 is electrically connected with the second touch button 12, a baffle 15 positioned between the side plate 10 and the movable frame 5 is further connected between the bottom plate 9 and the top plate, two sides of the movable frame 5 are respectively bent upwards and vertically to form bent edges 16, guide holes are arranged on the bent edges 16, movable rods 17 penetrate through the guide holes, the movable rods 17 are perpendicular to the baffle 15, pressure heads 18 and convex rings 19 are respectively arranged at two ends of the movable rods 17, the convex rings 19 are arranged away from the baffle 15, and springs 20 sleeved on the movable rods 17 are connected between the convex rings 19 and the bent edges 16, the baffle 15 is provided with a first positioning hole 21 and a second positioning hole 22 for the pressure head 18 to pass through, the first positioning hole 21 and the second positioning hole 22 correspond to the first touch button 11 and the second touch button 12, respectively, the hole wall of the first positioning hole 21 is provided with a first driving inclined surface 23 for driving the pressure head 18 to exit the first positioning hole 21, the hole wall of the second positioning hole 22 is provided with a second driving inclined surface 24 for driving the pressure head 18 to exit the second positioning hole 22, and the pressure head 18 is provided with a first driven inclined surface 25 matched with the first driving inclined surface 23 and a second driven inclined surface 26 matched with the second driving inclined surface 24.
The end of the ram 18 is in the shape of a spherical crown.
The cross beam 4 is provided with an operation hole 27, and one end of the screw 7 is provided with a rotary head positioned in the operation hole 27.
The two ends of the beam 4 are respectively fixedly connected with the drawing frame 1 through positioning pins.
Above-mentioned base 2 is last to be equipped with first wiring district and to be located the second wiring district of first wiring district below, and above-mentioned wiring row includes: a first terminal block 28, a second terminal block 29 and a third terminal block 30, which are arranged in the first terminal area, and a fourth terminal block 31, a fifth terminal block 32 and a sixth terminal block 33, which are arranged in the second terminal area; the first, second and third terminal block 28, 29, 30 are arranged in this order from top to bottom, and the fourth, fifth and sixth terminal block 31, 32, 33 are arranged in this order from top to bottom.
The two change-over switches are respectively a first change-over switch 34 and a second change-over switch 35, the first change-over switch 34 is located above the second change-over switch 35, and the first change-over switch 34 is provided with a first connecting assembly 36 corresponding to the first wiring bank 28, a second connecting assembly 37 corresponding to the second wiring bank 29, and a third connecting assembly 38 corresponding to the third wiring bank 30; the second transfer switch 35 is provided with a fourth connecting assembly 39 corresponding to the fourth terminal block 31, a fifth connecting assembly 40 corresponding to the fifth terminal block 32, and a sixth connecting assembly 41 corresponding to the sixth terminal block 33.
The invention has the beneficial effects that: the drawable dual-power automatic change-over switch is reasonable in structure and convenient to overhaul and maintain.
The working principle of the invention is as follows: the two change-over switches can be mutually main switches or bypass switches, when the two change-over switches are in a connection state, one of the change-over switches is used for supplying power to a user, and therefore the other change-over switch can be pulled out for overhauling and maintaining; and, when the rotary switch is in the connection state, the pressure head 18 on the movable rod 17 passes through the first positioning hole 21 on the baffle 15 and presses on the first touch button 11 to light the connection position indicator lamp 13. When the change-over switch is overhauled and maintained, a special tool is used for clockwise rotating the rotating head, the rotating head drives the screw rod 7 to rotate, and further drives the screw rod nut 8 and the moving frame 5 fixed with the screw rod nut 8 to move towards the direction far away from the base 2, so that each connecting assembly on the change-over switch is separated from the corresponding connecting row on the base 2; and when the moving frame 5 moves, the movable rod 17 and the pressure head 18 are driven to move, so that the first driven inclined surface 25 on the pressure head 18 contacts with the first driving inclined surface 23 on the first positioning hole 21, the pressure head 18 moves away from the first touch button 11 under the action of the first driving inclined surface 23, the connection in-place indicator lamp 13 is turned off, the pressure head 18 drives the movable rod 17 to stretch the spring 20, when the first driven inclined surface 25 on the pressure head 18 is separated from the first driving inclined surface 23, the pressure head 18 exits from the first positioning hole 21, the movable rod 17 continues to move along with the moving frame 5, when the movable rod 17 moves to a position corresponding to the second positioning hole 22, the movable rod 17 drives the pressure head 18 to pass through the second positioning hole 22 and press the second touch button 12 under the elastic restoring force of the spring 20, so that the pull-out-in-place indicator lamp 14 is turned on, and the operator is prompted that the switch is in a pull-out state, the change-over switch can be conveniently and safely overhauled and maintained. After the completion, the special tool is used to rotate the rotating head counterclockwise, so as to drive the moving frame 5 to move towards the direction close to the base 2, and further drive the movable rod 17 and the pressing head 18 to move, so that the second driven inclined surface 26 on the pressing head 18 contacts with the second driving inclined surface 24 on the second positioning hole 22, the pressing head 18 will move towards the direction away from the second touch button 12 under the action of the second driving inclined surface 24, the pull-out in-place indicator lamp 14 will be extinguished, and the pressing head 18 will drive the movable rod 17 to stretch the spring 20, when the second driven inclined surface 26 on the pressing head 18 is separated from the second driving inclined surface 24, the pressing head 18 exits from the second positioning hole 22, the movable rod 17 continues to move along with the moving frame 5, when the movable rod 17 moves to the position corresponding to the first positioning hole 21, the movable rod 17 will drive the pressing head 18 to pass through the first positioning hole 21 and press on the first touch button 11 under the, so that connect to put in place pilot lamp 13 and light, each coupling assembling on the change over switch is connected with corresponding connector assembly on base 2 this moment, and change over switch is in connected state and can normal use to accomplish whole maintenance and maintenance 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 (6)
1. A drawable dual-power automatic transfer switch comprises a drawing frame and two transfer switches, wherein the rear end of the drawing frame is provided with a base, the base is provided with a wiring bar, and the two transfer switches can be connected with or separated from the wiring bar;
the insertion and extraction mechanism includes: the device comprises a cross beam fixed at the front end of the drawer frame, a movable frame arranged between the cross beam and a base, 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 assembly, the lead screw assembly comprises a lead screw and a lead screw nut in threaded connection with the lead screw, the lead screw nut is fixed on the moving frame and is arranged close to the cross beam, the lead screw is perpendicular to the cross beam, one end of the lead screw is rotatably arranged on the cross beam in a penetrating way, and the change-over switch is fixed on the moving frame through a bracket;
the guide rail comprises a bottom plate, a top plate and a side plate which is integrally connected between the bottom plate and the top plate; the inner side of the side plate is provided with a first touch button and a second touch button which are sequentially arranged from back to front, the drawing frame is provided with a connection in-place indicator lamp and a drawing in-place indicator lamp, the connection in-place indicator lamp is electrically connected with the first touch button, the drawing in-place indicator lamp is electrically connected with the second touch button, a baffle plate positioned between the side plate and the moving frame is further connected between the bottom plate and the top plate, two sides of the moving frame are respectively bent upwards and vertically to form a bent edge, the bent edge is provided with a guide hole, a movable rod is penetrated in the guide hole and is perpendicular to the baffle plate, two ends of the movable rod are respectively provided with a pressure head and a convex ring, the convex ring is arranged away from the baffle plate, a spring sleeved on the movable rod is connected between the convex ring and the bent edge, and the baffle plate is provided with a first positioning hole and a second positioning hole for the pressure head to pass through, the first positioning hole and the second positioning hole correspond to the first touch button and the second touch button respectively, a first driving inclined plane used for driving the pressure head to withdraw from the first positioning hole is arranged on the hole wall of the first positioning hole, a second driving inclined plane used for driving the pressure head to withdraw from the second positioning hole is arranged on the hole wall of the second positioning hole, and the pressure head is provided with a first driven inclined plane matched with the first driving inclined plane and a second driven inclined plane matched with the second driving inclined plane.
2. The withdrawable dual power automatic transfer switch according to claim 1, wherein the end of the pressure head is in the shape of a spherical crown.
3. The withdrawable dual-power automatic transfer switch according to claim 2, wherein the cross beam is provided with an operation hole, and one end of the lead screw is provided with a rotating head located in the operation hole.
4. The withdrawable dual-power automatic transfer switch according to claim 3, wherein two ends of the cross beam are respectively and fixedly connected with the drawing frame through positioning pins.
5. The withdrawable dual power automatic transfer switch according to claim 4, wherein the base is provided with a first wiring region and a second wiring region located below the first wiring region, the wiring row comprises: the first wiring block, the second wiring block and the third wiring block are arranged in the first wiring area, and the fourth wiring block, the fifth wiring block and the sixth wiring block are arranged in the second wiring area; first line bank, second line bank and third line bank from top to bottom arrange in proper order, fourth line bank, fifth line bank and sixth line bank from top to bottom arrange in proper order.
6. The withdrawable dual-power automatic transfer switch according to claim 5, wherein the two transfer switches are a first transfer switch and a second transfer switch, respectively, the first transfer switch is located above the second transfer switch, and the first transfer switch is provided with a first connection component corresponding to the first wiring bank, a second connection component corresponding to the second wiring bank, and a third connection component corresponding to the third wiring bank; and the second change-over switch is provided with a fourth connecting assembly corresponding to the fourth wiring row, a fifth connecting assembly corresponding to the fifth wiring row and a sixth connecting assembly corresponding to the sixth wiring row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290590.5A CN110931287B (en) | 2019-12-16 | 2019-12-16 | Drawable dual-power automatic transfer switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911290590.5A CN110931287B (en) | 2019-12-16 | 2019-12-16 | Drawable dual-power automatic transfer switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110931287A true CN110931287A (en) | 2020-03-27 |
| CN110931287B CN110931287B (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911290590.5A Active CN110931287B (en) | 2019-12-16 | 2019-12-16 | Drawable dual-power automatic transfer switch |
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| Country | Link |
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| CN (1) | CN110931287B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531371A (en) * | 2013-10-18 | 2014-01-22 | 通能顺达科技国际有限公司 | Quick bi-directional three-state switching power switch device |
| CN108808536A (en) * | 2018-06-22 | 2018-11-13 | 上海良信电器股份有限公司 | A kind of automatic change-over of the double bypasses of pull-out type band |
| CN208385253U (en) * | 2018-07-26 | 2019-01-15 | 温州赣西电气有限公司 | A kind of double power supply automatic transfer switch with mounting base |
-
2019
- 2019-12-16 CN CN201911290590.5A patent/CN110931287B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531371A (en) * | 2013-10-18 | 2014-01-22 | 通能顺达科技国际有限公司 | Quick bi-directional three-state switching power switch device |
| CN108808536A (en) * | 2018-06-22 | 2018-11-13 | 上海良信电器股份有限公司 | A kind of automatic change-over of the double bypasses of pull-out type band |
| CN208385253U (en) * | 2018-07-26 | 2019-01-15 | 温州赣西电气有限公司 | A kind of double power supply automatic transfer switch with mounting base |
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| Publication number | Publication date |
|---|---|
| CN110931287B (en) | 2021-09-03 |
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