CN109494098B - Automatic change-over switch - Google Patents
Automatic change-over switch Download PDFInfo
- Publication number
- CN109494098B CN109494098B CN201811463090.2A CN201811463090A CN109494098B CN 109494098 B CN109494098 B CN 109494098B CN 201811463090 A CN201811463090 A CN 201811463090A CN 109494098 B CN109494098 B CN 109494098B
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- China
- Prior art keywords
- driven gear
- piece
- shifting piece
- driving gear
- transfer switch
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transmission Devices (AREA)
Abstract
The invention provides an automatic change-over switch which comprises an installation rack, and a driving gear, a left driven gear, a right driven gear, a left stirring piece and a right stirring piece which are respectively arranged on the installation rack; the left side and the right side of the driving gear are respectively meshed with the left driven gear and the right driven gear; the left shifting piece is meshed with the left driven gear; the right shifting piece is in meshed connection with the right driven gear; the outer sides of the left shifting piece and the right shifting piece are respectively provided with a group of circuit breakers; the driving gear drives the left shifting piece and the right shifting piece to move up and down alternately so as to realize switching-on and switching-off conversion of the two groups of circuit breakers; the upper parts of the left shifting piece and the right shifting piece are also connected through a locking mechanism, and the locking mechanism can prevent the left shifting piece and the right shifting piece from being switched on simultaneously. The invention has simple structure and is provided with the locking mechanism, thereby effectively preventing the condition that the circuit breakers on two sides are switched on simultaneously.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to an automatic change-over switch.
Background
The change-over switch is widely applied to various occasions needing uninterrupted power supply, and realizes automatic change-over of a load circuit between two power supplies so as to ensure the reliability of power supply of a user. In order to realize switching-on and switching-off switching of two circuit breakers, the conventional automatic transfer switch adopts a mode that a motor drives an operating mechanism to control toggle brackets on two sides to move up and down alternately, and the toggle brackets drive the switching-on and switching-off of a circuit breaker switch. In the existing change-over switch, the matching of an operating mechanism and a toggle piece is complex, and more parts are provided. Not only production equipment is consuming time, and the condition that both sides circuit breaker closed a floodgate simultaneously appears moreover easily to lead to the short circuit, can threaten life and property safety in the time of serious.
Disclosure of Invention
The invention provides an automatic change-over switch aiming at the defects of the prior art, which not only has a simple structure, but also is provided with a locking mechanism, and can effectively prevent the condition that circuit breakers on two sides are switched on simultaneously.
The invention provides an automatic change-over switch which comprises an installation rack, and a driving gear, a left driven gear, a right driven gear, a left stirring piece and a right stirring piece which are respectively arranged on the installation rack; the left side and the right side of the driving gear are respectively meshed with the left driven gear and the right driven gear; the axis of the driving gear is respectively connected with the axes of the left driven gear and the right driven gear, an included angle formed by the two lines is an obtuse angle, a tooth part and a tooth-free part are arranged on the circumference of the driving gear, and the circumference of the driving gear circle occupied by the tooth part is larger than the circumference of the driving gear circle occupied by the tooth-free part; the left shifting piece is arranged on the left side of the left driven gear and is in meshed connection with the left driven gear; the right shifting piece is arranged on the right side of the right driven gear and is in meshed connection with the right driven gear; the outer sides of the left shifting piece and the right shifting piece are respectively provided with a group of circuit breakers; the left shifting piece and the right shifting piece are driven to move up and down alternately by controlling the rotation direction of the driving gear so as to realize switching-on and switching-off conversion of the two groups of circuit breakers; the upper parts of the left shifting piece and the right shifting piece are also connected through a locking mechanism, and the locking mechanism can prevent the left shifting piece and the right shifting piece from moving upwards simultaneously.
Furthermore, the locking mechanism comprises a hollow sealing tube arranged above the driving gear and piston rods respectively movably inserted into the ends of the sealing tube at one ends, and the other ends of the piston rods are respectively connected with the left shifting piece and the right shifting piece; the sealing tube is filled with a part of liquid, and the liquid is arranged between the two piston rods.
Further, the liquid is one of water, oil and a water-oil mixture.
Further, the sealing tube comprises a straight portion, a first vertical portion and a second vertical portion which are respectively arranged at two ends of the straight portion and communicated with the straight portion; the first vertical portion and the second vertical portion are both vertically downwardly disposed on both left and right ends of the straight portion.
Further, the left side and the right side of the piston rod are respectively provided with a roller, and the rollers are movably arranged on one end, close to the first vertical portion and the second vertical portion, of the mounting frame through pin shafts.
Further, the change-over switch still includes the controller, be equipped with in the sealed tube with pressure sensor that the controller is connected.
Further, the pressure sensor is arranged on a side of the piston facing the liquid.
Furthermore, an included angle formed by a connecting line of the axis of the driving gear and the axes of the left driven gear and the right driven gear is 120 degrees; the toothless portion occupies 1/3 the full circle of the drive gear.
Furthermore, be equipped with oiling station on the toothless portion, oiling station is including the elastic piece that adsorbs of having of ability absorption fluid.
Further, the adsorption member is made of sponge.
Compared with the prior art, the invention has the following beneficial effects:
the change-over switch of the invention drives the left driven gear or the right driven gear through the driving gear alone, and then drives the left shifting piece or the right shifting piece to move up and down, so that the switching gates of the circuit breakers at two sides are automatically changed. When the left shifting piece and the right shifting piece move up and down, the locking mechanism guarantees that the left shifting piece and the right shifting piece are always kept in a state of being up and down through two piston rods inserted at two ends of the sealing tube, and the condition that the circuit breakers on two sides are switched on simultaneously can be effectively prevented. And, still be equipped with pressure sensor in the sealed pipe, the pressure condition of the intraductal liquid of ability real-time supervision sealed, if liquid leakage appears, the staff can discover and carry out suitable maintenance to it at the very first time. Set up driving gear and two driven gear from top to bottom, can also save space.
Drawings
FIG. 1 is a schematic diagram of the transfer switch of the present invention during two-side switching-off.
Fig. 2 is a schematic diagram of the transfer switch of the present invention when closing the left side.
Fig. 3 is a schematic diagram of the transfer switch of the present invention when closing the right side.
Description of reference numerals:
1-a mounting frame; 2-a driving gear; 21-a tooth portion; 22-toothless part; 3-left driven gear; 4-right driven gear; 5, a left shifting piece; 6-right stirring piece; 7-locking mechanism; 71-a sealed tube; 72-a piston rod; 8-a pressure sensor; 9-an oiling device; 10-roller.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms described above will be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 to 3, an automatic transfer switch includes a mounting bracket 1, and a driving gear 2, a left driven gear 3, a right driven gear 4, a left toggle member 5, and a right toggle member 6 respectively disposed on the mounting bracket 1. The driving gear 2 is preferably arranged on the middle part of the mounting rack 1, and the left side and the right side of the driving gear are respectively meshed with the left driven gear 3 and the right driven gear 4. The left driven gear 3 and the right driven gear 4 are symmetrically arranged on both sides of the driving gear 2. In addition, the axis of the driving gear 2 is respectively connected with the axes of the left driven gear 3 and the right driven gear 4, an included angle formed by the two lines is an obtuse angle, and an included angle of 120 degrees is preferred in the embodiment of the invention. The left shifting piece 5 is arranged on the left side of the left driven gear 3, a first rack which is vertically arranged is arranged on the right side of the left shifting piece 5, and the first rack is meshed with the left driven gear 3. The right stirring part 6 is arranged on the right side of the right driven gear 4, a second rack which is vertically arranged is arranged on the left side of the right stirring part 6, and the second rack is meshed with the right driven gear 4. A group of circuit breakers (not shown) is arranged on the outer side of each of the left toggle piece 5 and the right toggle piece 6. The left driven gear 3 and the right driven gear 4 are driven by controlling the rotation direction of the driving gear 2, and then the left shifting piece 5 and the right shifting piece 6 are driven to move up and down alternately, so that the switching-closing switching of the two groups of circuit breakers is realized. That is, when the left driven gear 3 rotates clockwise, the first rack drives the left toggle piece 5 to move upward, and the circuit breaker on the left side is switched on; when the left driven gear 3 rotates anticlockwise, the first rack drives the left poking piece 5 to move downwards, and the circuit breaker on the left side is opened. When the right driven gear 4 rotates clockwise, the second rack drives the right poking piece 6 to move downwards, and the circuit breaker on the right side is switched off; when the right driven gear 4 rotates anticlockwise, the second rack drives the right poking piece 6 to move upwards, and the circuit breaker on the right side is switched on. The rotation direction of the left driven gear 3 and the right driven gear 4 is determined by the rotation direction of the driving gear 2. The upper parts of the left shifting piece 5 and the right shifting piece 6 are also connected through a locking mechanism 7, and the locking mechanism 7 can prevent the left shifting piece 5 and the right shifting piece 6 from moving upwards simultaneously, namely prevent the circuit breakers on the left side and the right side from being switched on simultaneously.
The locking mechanism 7 comprises a hollow sealing tube 71 arranged above the driving gear 2 and piston rods 72 respectively movably inserted into the end parts of the sealing tube 71 at one end. The sealing tube 71 is preferably provided in an inverted U-shaped configuration. The two ends of the left shifting piece 5 and the right shifting piece 6 extend towards the same direction. In one embodiment, the sealing tube 71 includes a straight portion, a first vertical portion and a second vertical portion disposed at both ends of the straight portion, the first vertical portion and the second vertical portion both communicating with the straight portion. The straight portion level sets up, first vertical portion with the equal vertical downwardly setting of the vertical portion of second is in on the both ends of controlling of straight portion. A piston is fixedly arranged at one end of the piston rod 72, and the outer diameter of the piston is equal to or slightly larger than the inner diameter of the sealing tube 71. The piston is movable up and down back and forth within the first vertical portion and the second vertical portion. The other end of the piston rod 72 is connected to the upper portions of the left toggle piece 5 and the right toggle piece 6, respectively. The sealing tube 71 is filled with a part of liquid, and the liquid is filled between the two pistons. When the left toggle piece 5 and the right toggle piece 6 are both in an open state, a preset distance is provided between the two pistons and the end part of the sealing tube 71, which is closest to the end part, so that when one of the left toggle piece 5 or the right toggle piece 6 moves upwards, the other can move downwards or keep the trend of moving downwards under the action of the liquid, and the situation that the left toggle piece 5 and the right toggle piece 6 move upwards simultaneously can be effectively prevented. The liquid is one of water, oil and a water-oil mixture, and in this embodiment, oil is preferably used, specifically, lubricating oil or hydraulic oil.
In order to ensure that the left toggle piece 5 and the right toggle piece 6 can keep a vertical state when moving up and down, the left side and the right side of each piston rod 72 are respectively provided with a roller 10, and the rollers 10 are movably arranged on the mounting frame 1 through pin shafts and are arranged at one ends close to the first vertical part and the second vertical part. The circumferential wall of each roller 10 abuts against the piston rod 72. The upper part of the piston rod 72 penetrates between the two rollers 10 and is fixedly connected with pistons arranged in two ends of the sealing pipe 71.
The change-over switch further comprises a controller, and a pressure sensor 8 connected with the controller is arranged in the sealing pipe 71 and used for monitoring the pressure condition of liquid in the sealing pipe 71. In this embodiment, the pressure sensors 8 are preferably provided in two, respectively disposed on the sides of the two pistons facing the liquid, and both of the pressure sensors 8 are connected to the controller. The pressure sensor 8 monitors the pressure of the liquid in the sealing tube 71 on the current time in real time. If the sealing tube 71 is used for a long time or is aged, and liquid leaks, the pressure sensor 8 monitors that the current pressure value is gradually reduced, and even the locking function of the locking mechanism 7 is affected. When the condition happens, the staff can find the liquid leakage at the first time, and the maintenance is convenient.
In order to control the alternating rotation of the left driven gear 3 and the right driven gear 4, the non-toothed part 22 is provided with a toothed part 21 and a non-toothed part 22 on the circumference of the driving gear 2, and the circumference of the driving gear 2 occupied by the toothed part 21 is larger than the circumference of the driving gear 2 occupied by the non-toothed part 22. Preferably, the toothless part 22 occupies 1/3 of the full circle of the driving gear 2. When the left and right breakers are in the open state, the tooth portion 21 of the driving gear 2 is located right above the tooth portion 22, and the position is temporarily set to an initial position, and at this time, the tooth portion 21 is not meshed with the left driven gear 3 and the right driven gear 4. When the driving gear 2 rotates counterclockwise, the tooth portion 21 rotates toward the lower left side thereof to drive the left driven gear 3 to rotate clockwise, and at this time, the toothless portion 22 is not directly connected to the right driven gear 4, that is, the right driven gear 4 is in a stop state. When the driving gear 2 rotates clockwise, the tooth portion 21 rotates to the lower right to drive the right driven gear 4 to rotate counterclockwise, and at this time, the toothless portion 22 is not directly connected to the left driven gear 3, that is, the left driven gear 3 is in a stop state.
In order to prevent each gear from rusting in a wet environment, the toothless part 22 is provided with an oiling device 9, the oiling device 9 comprises an elastic adsorption part capable of adsorbing oil, the adsorption part protrudes outwards along the peripheral wall of the toothless part 22, and the protruding height of the adsorption part is slightly larger than the distance between the toothless part 22 and the left driven gear 3 and the right driven gear 4. When the toothless part 22 is opposite to the left driven gear 3 or the right driven gear 4, the adsorption part is extruded by the left driven gear 3 or the right driven gear 4, and oil adsorbed in the adsorption part can be transferred to the teeth of the left driven gear 3 or the right driven gear 4. The adsorption member is preferably made of sponge. The oil is preferably rust preventive oil.
The change-over switch of the invention drives the left driven gear or the right driven gear through the driving gear alone, and then drives the left shifting piece or the right shifting piece to move up and down, so that the switching gates of the circuit breakers at two sides are automatically changed. When the left shifting piece and the right shifting piece move up and down, the locking mechanism guarantees that the left shifting piece and the right shifting piece are always kept in a state of being up and down through two piston rods inserted at two ends of the sealing tube, and the condition that the circuit breakers on two sides are switched on simultaneously can be effectively prevented. And, still be equipped with pressure sensor in the sealed pipe, the pressure condition of the intraductal liquid of ability real-time supervision sealed, if liquid leakage appears, the staff can discover and carry out suitable maintenance to it at the very first time. Set up driving gear and two driven gear from top to bottom, can also save space.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An automatic transfer switch, characterized in that: the device comprises an installation rack (1), and a driving gear (2), a left driven gear (3), a right driven gear (4), a left stirring piece (5) and a right stirring piece (6) which are respectively arranged on the installation rack (1); the left side and the right side of the driving gear (2) are respectively meshed with the left driven gear (3) and the right driven gear (4); the axis of the driving gear (2) is respectively connected with the axes of the left driven gear (3) and the right driven gear (4), an included angle formed by the two lines is an obtuse angle, a toothed part (21) and a toothless part (22) are arranged on the circumference of the driving gear (2), and the circumference of the driving gear (2) occupied by the toothed part (21) is larger than the circumference of the driving gear (2) occupied by the toothless part (22); the left shifting piece (5) is arranged on the left side of the left driven gear (3) and is in meshed connection with the left driven gear (3); the right stirring piece (6) is arranged on the right side of the right driven gear (4) and is in meshed connection with the right driven gear (4); the outer sides of the left toggle piece (5) and the right toggle piece (6) are respectively provided with a group of circuit breakers; the left shifting piece (5) and the right shifting piece (6) are driven to move up and down alternately by controlling the rotation direction of the driving gear (2) so as to realize the switching-on and switching-off conversion of the two groups of circuit breakers; the upper parts of the left shifting piece (5) and the right shifting piece (6) are also connected through a locking mechanism (7), and the locking mechanism (7) can prevent the left shifting piece (5) and the right shifting piece (6) from moving upwards simultaneously;
the locking mechanism (7) comprises a hollow sealing tube (71) arranged above the driving gear (2) and piston rods (72) respectively movably inserted into the end parts of the sealing tube (71), and the other ends of the piston rods (72) are respectively connected with the left stirring piece (5) and the right stirring piece (6); the sealing tube (71) is filled with partial liquid, and the liquid is arranged between the two piston rods (72).
2. The transfer switch of claim 1, wherein: the liquid is one of water, oil and a water-oil mixture.
3. The transfer switch of claim 2, wherein: the seal tube (71) comprises a straight portion, a first vertical portion and a second vertical portion which are respectively arranged at two ends of the straight portion and communicated with the straight portion; the first vertical portion and the second vertical portion are both vertically downwardly disposed on both left and right ends of the straight portion.
4. The transfer switch of claim 3, wherein: the left side and the right side of the piston rod (72) are provided with idler wheels (10), and the idler wheels (10) are movably arranged at one end, close to the first vertical portion and the second vertical portion, of the mounting frame (1) through pin shafts.
5. The transfer switch of claim 4, wherein: the change-over switch also comprises a controller, and a pressure sensor (8) connected with the controller is arranged in the sealing tube (71).
6. The transfer switch of claim 5, wherein: the pressure sensor (8) is arranged on the side of the piston facing the liquid.
7. The transfer switch of claim 6, wherein: an included angle formed by a connecting line of the axis of the driving gear (2) and the axes of the left driven gear (3) and the right driven gear (4) is 120 degrees; the toothless part (22) occupies 1/3 of the full circle of the driving gear (2).
8. The transfer switch of claim 7, wherein: be equipped with oiling station (9) on toothless portion (22), oiling station (9) including the elastic piece that adsorbs that has of ability absorption fluid.
9. The transfer switch of claim 8, wherein: the adsorption piece is made of sponge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811463090.2A CN109494098B (en) | 2018-12-03 | 2018-12-03 | Automatic change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811463090.2A CN109494098B (en) | 2018-12-03 | 2018-12-03 | Automatic change-over switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109494098A CN109494098A (en) | 2019-03-19 |
| CN109494098B true CN109494098B (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811463090.2A Active CN109494098B (en) | 2018-12-03 | 2018-12-03 | Automatic change-over switch |
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| CN (1) | CN109494098B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125844A (en) * | 1994-12-30 | 1996-07-03 | 张兆祥 | Method of hydraulic metering |
| CN101384846A (en) * | 2006-02-13 | 2009-03-11 | 皇家飞利浦电子股份有限公司 | Microfluidic device for molecular diagnostic applications |
| CN104319123A (en) * | 2014-11-18 | 2015-01-28 | 浙江现代电气有限公司 | Automatic change-over switch with locking mechanism |
| CN205419650U (en) * | 2016-03-30 | 2016-08-03 | 李月萍 | Liquefied petroleum gas pressure lifting mechanism |
| CN205564571U (en) * | 2015-12-30 | 2016-09-07 | 德力西电气有限公司 | Two switching of power mechanisms and automatic change -over |
-
2018
- 2018-12-03 CN CN201811463090.2A patent/CN109494098B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125844A (en) * | 1994-12-30 | 1996-07-03 | 张兆祥 | Method of hydraulic metering |
| CN101384846A (en) * | 2006-02-13 | 2009-03-11 | 皇家飞利浦电子股份有限公司 | Microfluidic device for molecular diagnostic applications |
| CN104319123A (en) * | 2014-11-18 | 2015-01-28 | 浙江现代电气有限公司 | Automatic change-over switch with locking mechanism |
| CN205564571U (en) * | 2015-12-30 | 2016-09-07 | 德力西电气有限公司 | Two switching of power mechanisms and automatic change -over |
| CN205419650U (en) * | 2016-03-30 | 2016-08-03 | 李月萍 | Liquefied petroleum gas pressure lifting mechanism |
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| Publication number | Publication date |
|---|---|
| CN109494098A (en) | 2019-03-19 |
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