CN110571112A - Control device with ventilation system short circuit operation prevention function for coal mine - Google Patents
Control device with ventilation system short circuit operation prevention function for coal mine Download PDFInfo
- Publication number
- CN110571112A CN110571112A CN201910787119.0A CN201910787119A CN110571112A CN 110571112 A CN110571112 A CN 110571112A CN 201910787119 A CN201910787119 A CN 201910787119A CN 110571112 A CN110571112 A CN 110571112A
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- China
- Prior art keywords
- fixed
- plate
- conductive connecting
- connecting plate
- clamping rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7463—Adjusting only the electromagnetic mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/06—Housings; Casings; Bases; Mountings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/20—Terminals; Connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/36—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0856—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load characterised by the protection measure taken
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H2071/749—Means for adjusting the conditions under which the device will function to provide protection with a shunt element connected in parallel to magnetic or thermal trip elements, e.g. for adjusting trip current
Abstract
The invention discloses a control device with a function of preventing short circuit operation of a ventilation system for a coal mine, which comprises a fixed shell, wherein a positioning plate and a partition plate are horizontally fixed in the fixed shell, the partition plate is positioned above the positioning plate, a first conductive connecting plate is fixed on the left side of the upper surface of the partition plate, a ventilation motor load is fixed on the positioning plate, a lower wiring column of the first conductive connecting plate is electrically connected with an input end of the ventilation motor load through a first electric wire, a second conductive connecting plate is fixed in the inner cavity of the fixed shell at a position corresponding to the first conductive connecting plate, and a connecting switch is arranged above the partition plate. The invention has reasonable design and structure, can change the magnetic field of the electromagnetic coil, increases the attraction of the electromagnetic coil to the iron plate, achieves the effect of moving the push rod, realizes the separation of the first clamping rod and the second clamping rod, separates the connecting switch by the elasticity of the strong spring, realizes the disconnection of a circuit, avoids the continuous electrification during short circuit and improves the safety of ventilation equipment.
Description
Technical Field
The invention relates to the technical field of coal mine ventilation, in particular to a control device with a function of preventing short circuit operation of a ventilation system for a coal mine.
Background
The basic task of mine ventilation is to supply enough fresh air underground, meet the requirement of personnel on oxygen, dilute harmful gas and dust underground, ensure safe production, adjust underground climate and create good working environment.
The existing coal mine ventilation system does not have an effective short circuit prevention device, if the circuit short circuit problem occurs, the temperature of ventilation equipment is easily and rapidly increased, a fire disaster is easily caused, certain potential safety hazards exist, and the normal operation of mine work is not facilitated.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the existing defects, provide a control device with a function of preventing the short-circuit operation of a ventilation system for a coal mine, have the advantages of quickly preventing short circuit and timely powering off, and effectively solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a control device with a function of preventing short circuit operation of a ventilation system for a coal mine comprises a fixed shell, a positioning plate and a partition plate are horizontally fixed inside the fixed shell, the partition plate is positioned above the positioning plate, a first conductive connecting plate is fixed on the left side of the upper surface of the partition plate, a ventilation motor load is fixed on the positioning plate, a lower wiring column of the first conductive connecting plate is electrically connected with an input end of the ventilation motor load through a first electric wire, a second conductive connecting plate is fixed in a position of an inner cavity of the fixed shell, which corresponds to the first conductive connecting plate, an upper wiring column of the second conductive connecting plate is fixedly connected with a conductor wire, a connecting switch is arranged above the partition plate, an upper wiring column of the connecting switch is contacted with a lower wiring column of the second conductive connecting plate, a lower wiring column of the connecting switch is contacted with an upper wiring column of the first conductive connecting plate, the right side of the connecting switch is fixedly connected with the left end of the first clamping rod, a vertical through hole is formed in the right side of the upper surface of the partition plate, a push rod is sleeved inside the through hole, an iron plate is fixed at the bottom of the push rod, a second clamping rod is arranged above the partition plate, the push rod and the second clamping rod are vertically and rotatably hinged through a first pin shaft, the first clamping rod and the second clamping rod are meshed, a fixing plate is fixed on the inner wall, close to the right end of the second clamping rod, of the fixing shell, and the fixing plate is vertically and rotatably hinged with the second clamping rod through a second pin shaft;
The bottom mounting of fixed shell inner wall has the battery, the below of iron plate is equipped with solenoid, be fixed with the voltage regulation module on the locating plate, solenoid's input is connected through the output electricity of second electric wire with the voltage regulation module, the input of voltage regulation module is connected through the output electricity of third electric wire with the battery, the left side of fixed shell bottom is fixed with the electrically conductive connecting plate of third, the last terminal of the electrically conductive connecting plate of third passes through the fourth electric wire and is connected with the lower terminal electricity of ventilation motor load, the right side face of fixed shell is fixed with the potentiometre, the electricity interface that connects of potentiometre passes through the fifth electric wire and is connected with the regulation mouth electricity of voltage regulation module, the left surface of fixed shell is fixed with the ampere meter, the ampere meter.
As a preferable technical scheme, the upper surface of the partition board is provided with a sliding groove along the left-right direction, the lower end of the sliding groove is connected with the connecting rod in a sliding mode, and the top of the connecting rod is fixedly connected with the bottom of the first clamping rod, so that the stability of the first clamping rod can be effectively improved, and the first clamping rod is prevented from shaking when moving.
as a preferable technical scheme of the present invention, the bottom surface of the fixing housing is provided with a communication hole for communicating the inside and the outside of the fixing housing, and the charging port of the storage battery is fixedly connected with the inner wall of the communication hole, so that the stability of the charging port of the storage battery can be effectively increased, and the fixing effect of the storage battery during charging can be increased.
as a preferable technical scheme of the invention, the right end of the electromagnetic coil is fixedly connected with the fixed rod, and the right end of the fixed rod is fixedly connected with the inner side wall of the fixed shell, so that the electromagnetic coil can be effectively fixed, and the stability of the electromagnetic coil is improved.
As a preferable technical scheme of the invention, the electromagnetic coil is positioned under the iron plate, and the horizontal section of the through hole is larger than that of the push rod, so that the magnetic field of the electromagnetic coil can be effectively ensured to act on the iron plate, and the friction between the through hole and the push rod can be effectively reduced.
As a preferred technical scheme of the invention, the bottom of the second clamping rod is fixedly connected with an expansion spring, and the bottom of the expansion spring is fixedly connected with the upper surface of the partition plate, so that the supporting effect on the second clamping rod can be effectively realized, and the stability of the second clamping rod is ensured.
As a preferred technical scheme of the invention, the outer surface of the fixed shell is coated with the insulating layer, and the insulating layer is uniformly distributed, so that the fixed shell can be effectively protected, and the electric leakage phenomenon of the device is avoided.
As a preferable technical scheme of the invention, the first conductive connecting plate is positioned right below the second conductive connecting plate, and the first clamping rod is parallel to the second clamping rod, so that the stability of mutual meshing of the first clamping rod and the second clamping rod can be effectively ensured, and the communication of circuits is ensured.
compared with the prior art, the invention has the beneficial effects that:
1. According to the control device with the function of preventing the short-circuit operation of the ventilation system for the coal mine, the second conductive connecting plate is connected with the first conductive connecting plate in series through the connecting switch, so that the current conduction is realized, the first conductive connecting plate is connected with the ventilation motor load through the first electric wire, the ventilation motor load is conducted to the third conductive connecting plate through the fourth electric wire, the stability of the first clamping rod is improved through the matching of the sliding groove and the connecting rod, and the firmness of the connecting switch is guaranteed.
2. according to the control device with the function of preventing the short-circuit operation of the ventilation system for the coal mine, the electromagnetic coil is enabled to generate a magnetic field by electrifying the electromagnetic coil through the storage battery, whether the circuit is short-circuited or not is observed by an ammeter, the short-circuit occurs in the circuit, the output voltage of the storage battery is adjusted by the matching arrangement of the potentiometer and the voltage regulating module, and the current flowing through the electromagnetic coil is adjusted, so that the magnetic field of the electromagnetic coil is changed, the attraction force of the electromagnetic coil to an iron plate is increased, the effect of moving the push rod is achieved, the separation of the first clamping rod and the second clamping rod is achieved, the connection switch is separated by the elasticity of the strong spring, the disconnection of the circuit is achieved, the continuous electrification during the short-.
Drawings
FIG. 1 is a cross-sectional view of a stationary housing of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to the present invention.
In the figure: 1. fixing the housing; 2. positioning a plate; 3. a ventilation motor load; 4. a first clamping rod; 5. a connecting rod; 6. a second clamping rod; 7. a fixing plate; 8. a second pin shaft; 9. a first pin shaft; 10. a third conductive connecting plate; 11. a potentiometer; 12. a voltage regulating module; 13. a tension spring; 14. an ammeter; 15. a storage battery; 16. a communicating hole; 17. a second conductive connecting plate; 18. a connecting switch; 19. a strong spring; 20. a partition plate; 21. a first conductive connecting plate; 22. a chute; 23. a through hole; 24. a push rod; 25. an iron plate; 26. an electromagnetic coil; 27. fixing the rod; 28. an insulating layer.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
referring to fig. 1-3, the present invention provides a technical solution: a control device with a function of preventing short circuit operation of a ventilation system for a coal mine comprises a fixed shell 1, a positioning plate 2 and a partition plate 20 are horizontally fixed inside the fixed shell 1, the partition plate 20 is positioned above the positioning plate 2, a first conductive connecting plate 21 is fixed on the left side of the upper surface of the partition plate 20, a ventilation motor load 3 is fixed on the positioning plate 2, a lower wiring column of the first conductive connecting plate 21 is electrically connected with an input end of the ventilation motor load 3 through a first wire, a second conductive connecting plate 17 is fixed in the inner cavity of the fixed shell 1 corresponding to the position of the first conductive connecting plate 21, an upper wiring column of the second conductive connecting plate 17 is fixedly connected with a conductive wire, a connecting switch 18 is arranged above the partition plate 20, an upper wiring column of the connecting switch 18 is contacted with the lower wiring column of the second conductive connecting plate 17, the lower wiring column of the connecting switch 18 is contacted with an, a strong spring 19 is installed on the left side of the connecting switch 18 and the left side of the inner cavity of the fixed shell 1, the right side of the connecting switch 18 is fixedly connected with the left end of the first clamping rod 4, a vertical through hole 23 is formed in the right side of the upper surface of the partition plate 20, a push rod 24 is sleeved inside the through hole 23, an iron plate 25 is fixed at the bottom of the push rod 24, a second clamping rod 6 is arranged above the partition plate 20, the push rod 24 is vertically and rotatably hinged with the second clamping rod 6 through a first pin shaft 9, the first clamping rod 4 is meshed with the second clamping rod 6, a fixed plate 7 is fixed on the inner wall of the fixed shell 1 close to the right end of the second clamping rod 6, and the fixed plate 7 is vertically and rotatably hinged with the second clamping;
The bottom mounting of fixed shell 1 inner wall has battery 15, the below of iron plate 25 is equipped with solenoid 26, be fixed with voltage regulating module 12 on locating plate 2, solenoid 26's input is connected through the second electric wire and voltage regulating module 12's output electricity, voltage regulating module 12's input is connected through the output electricity of third electric wire and battery 15, the left side of fixed shell 1 bottom is fixed with third electrically conductive connecting plate 10, the last terminal of third electrically conductive connecting plate 10 is connected through the fourth electric wire and is connected with the lower terminal of ventilation motor load 3, the right flank of fixed shell 1 is fixed with potentiometre 11, the electricity interface of potentiometre 11 is connected through the fifth electric wire and the regulation mouth of voltage regulating module 12 electricity, the left surface of fixed shell 1 is fixed with ampere meter 14, ampere meter 14 and ventilation motor load 3 establish ties.
Spout 22 has been seted up along left right direction to the upper surface of baffle 20, spout 22's lower extreme and 5 sliding connection of connecting rod, and the top of connecting rod 5 and the bottom fixed connection of first kelly 4, and the first kelly 4 of effectual increase stability takes place to rock when avoiding first kelly 4 to remove.
The bottom surface of the fixed shell 1 is provided with a communicating hole 16 for communicating the inside and the outside of the fixed shell, and the charging port of the storage battery 15 is fixedly connected with the inner wall of the communicating hole 16, so that the stability of the charging port of the storage battery 15 can be effectively improved, and the fixing effect on the storage battery 15 during charging is improved.
Solenoid 26's right-hand member fixedly connected with dead lever 27, and the right-hand member of dead lever 27 and the inside wall fixed connection of fixed shell 1, can effectual realization improve solenoid 26's stability to solenoid 26's fixed.
The electromagnetic coil 26 is positioned under the iron plate 25, and the horizontal section of the through hole 23 is larger than that of the push rod 24, so that the magnetic field of the electromagnetic coil 26 can be effectively ensured to act on the iron plate 25, and the friction between the through hole 23 and the push rod 24 can be effectively reduced.
The bottom fixedly connected with expanding spring 13 of second kelly 6, expanding spring 13's bottom and the last fixed surface of baffle 20 are connected, can effectually realize the supporting effect to second kelly 6, guarantee the stability of second kelly 6.
The outer surface spraying of fixed shell 1 has insulating layer 28, and insulating layer 28 evenly distributed, can effectual realization to fixed shell 1 protection, avoids the device electric leakage phenomenon to appear.
First conductive connecting plate 21 is located second conductive connecting plate 17 under, and first kelly 4 parallels with second kelly 6, can effectually guarantee first kelly 4 and second kelly 6 intermeshing's stability, guarantees the intercommunication of circuit.
When in use:
The second conductive connecting plate 17 of the invention is connected with the first conductive connecting plate 21 in series by using the connecting switch 18 to realize the conduction of current, the first conductive connecting plate 21 is connected with the ventilation motor load 3 by using the first electric wire, the ventilation motor load 3 is conducted to the third conductive connecting plate 10 by using the fourth electric wire, the stability of the first clamping rod 4 is increased by using the matching of the chute 22 and the connecting rod 5, the firmness of the connecting switch 18 is ensured, the electromagnetic coil 26 is electrified by using the storage battery 15 to generate a magnetic field, the ammeter 14 is used to observe whether the circuit is short-circuited or not, the circuit is short-circuited, the adjustment of the output voltage of the storage battery 15 is realized by using the matching arrangement of the potentiometer 11 and the voltage regulating module 12, the adjustment of the current flowing through the electromagnetic coil 26 is achieved, the change of the magnetic field of the electromagnetic coil 26 is realized, and the attraction, the effect of the movable push rod 24 is achieved, the first clamping rod 4 is separated from the second clamping rod 6, the connection switch 18 is separated by the elasticity of the strong spring 19, the disconnection of a circuit is achieved, the continuous electrification during short circuit is avoided, and the safety of the ventilation equipment is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a controlling means that colliery was used has prevention ventilation system short circuit operation function, includes fixed shell (1), its characterized in that: a positioning plate (2) and a partition plate (20) are horizontally fixed inside the fixed shell (1), the partition plate (20) is positioned above the positioning plate (2), a first conductive connecting plate (21) is fixed on the left side of the upper surface of the partition plate (20), a ventilation motor load (3) is fixed on the positioning plate (2), a lower wiring column of the first conductive connecting plate (21) is electrically connected with an input end of the ventilation motor load (3) through a first electric wire, a second conductive connecting plate (17) is fixed at a position of an inner cavity of the fixed shell (1) corresponding to the first conductive connecting plate (21), an upper wiring column of the second conductive connecting plate (17) is fixedly connected with a conductive wire, a connecting switch (18) is arranged above the partition plate (20), an upper wiring column of the connecting switch (18) is contacted with the lower wiring column of the second conductive connecting plate (17), the lower wiring column of the connecting switch (18) is contacted with the upper wiring column of the first conductive connecting plate (, a strong spring (19) is installed on the left side of the connecting switch (18) and the left side of the inner cavity of the fixed shell (1), the right side of the connecting switch (18) is fixedly connected with the left end of the first clamping rod (4), a vertical through hole (23) is formed in the right side of the upper surface of the partition plate (20), a push rod (24) is sleeved inside the through hole (23), an iron plate (25) is fixed at the bottom of the push rod (24), a second clamping rod (6) is arranged above the partition plate (20), the push rod (24) is vertically and rotatably hinged with the second clamping rod (6) through a first pin shaft (9), the first clamping rod (4) is meshed with the second clamping rod (6), a fixed plate (7) is fixed on the inner wall of the fixed shell (1) close to the right end of the second clamping rod (6), and the fixed plate (7) is vertically and rotatably hinged with the second clamping rod (6);
A storage battery (15) is fixed at the bottom end of the inner wall of the fixed shell (1), an electromagnetic coil (26) is arranged below the iron plate (25), a voltage regulating module (12) is fixed on the positioning plate (2), the input end of the electromagnetic coil (26) is electrically connected with the output end of the voltage regulating module (12) through a second electric wire, the input end of the voltage regulating module (12) is electrically connected with the output end of the storage battery (15) through a third electric wire, a third conductive connecting plate (10) is fixed on the left side of the bottom of the fixed shell (1), the upper wiring terminal of the third conductive connecting plate (10) is electrically connected with the lower wiring column of the ventilation motor load (3) through a fourth electric wire, a potentiometer (11) is fixed on the right side face of the fixed shell (1), the power connection port of the potentiometer (11) is electrically connected with the adjusting port of the voltage regulating module (12) through a fifth electric wire, the ammeter (14) is connected with the ventilation motor load (3) in series.
2. The control device for the coal mine with the function of preventing the short-circuit operation of the ventilation system according to claim 1, wherein: spout (22) have been seted up along left right direction to the upper surface of baffle (20), the lower extreme and connecting rod (5) sliding connection of spout (22), and the bottom fixed connection of the top of connecting rod (5) and first kelly (4).
3. The control device for the coal mine with the function of preventing the short-circuit operation of the ventilation system according to claim 1, wherein: the bottom surface of the fixed shell (1) is provided with a communicating hole (16) for communicating the inside and the outside of the fixed shell, and a charging port of the storage battery (15) is fixedly connected with the inner wall of the communicating hole (16).
4. The control device for the coal mine with the function of preventing the short-circuit operation of the ventilation system according to claim 1, wherein: the right end of the electromagnetic coil (26) is fixedly connected with a fixed rod (27), and the right end of the fixed rod (27) is fixedly connected with the inner side wall of the fixed shell (1).
5. The control device for the coal mine with the function of preventing the short-circuit operation of the ventilation system according to claim 1, wherein: the electromagnetic coil (26) is positioned under the iron plate (25), and the horizontal section of the through hole (23) is larger than that of the push rod (24).
6. The control device for the coal mine with the function of preventing the short-circuit operation of the ventilation system according to claim 1, wherein: the bottom of the second clamping rod (6) is fixedly connected with an expansion spring (13), and the bottom of the expansion spring (13) is fixedly connected with the upper surface of the partition plate (20).
7. The control device for the coal mine with the function of preventing the short-circuit operation of the ventilation system according to claim 1, wherein: the outer surface of the fixed shell (1) is coated with an insulating layer (28), and the insulating layers (28) are uniformly distributed.
8. The control device for the coal mine with the function of preventing the short-circuit operation of the ventilation system according to claim 1, wherein: the first conductive connecting plate (21) is positioned right below the second conductive connecting plate (17), and the first clamping rod (4) is parallel to the second clamping rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910787119.0A CN110571112A (en) | 2019-08-25 | 2019-08-25 | Control device with ventilation system short circuit operation prevention function for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910787119.0A CN110571112A (en) | 2019-08-25 | 2019-08-25 | Control device with ventilation system short circuit operation prevention function for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110571112A true CN110571112A (en) | 2019-12-13 |
Family
ID=68775928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910787119.0A Pending CN110571112A (en) | 2019-08-25 | 2019-08-25 | Control device with ventilation system short circuit operation prevention function for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110571112A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049323A (en) * | 2020-01-19 | 2020-04-21 | 广州扬坪机电科技有限公司 | Motor with emergency protection device and convenient to move |
| CN111678079A (en) * | 2020-06-23 | 2020-09-18 | 齐广东 | New forms of energy wisdom street lamp device of extension 5G signal |
| CN112216572A (en) * | 2020-10-16 | 2021-01-12 | 周长鸿 | High-low voltage power distribution cabinet indicating instrument protection against electric shock structure |
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| CN104624283A (en) * | 2014-12-06 | 2015-05-20 | 诸暨市粮工机械有限公司 | Vibrating feeding device for rice huller |
| CN209101166U (en) * | 2019-01-17 | 2019-07-12 | 张英 | A kind of architectural lighting device based on BIM |
| CN209169952U (en) * | 2018-12-17 | 2019-07-26 | 天津卓一科技有限公司 | A kind of surge protector of low-voltage distribution system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624283A (en) * | 2014-12-06 | 2015-05-20 | 诸暨市粮工机械有限公司 | Vibrating feeding device for rice huller |
| CN209169952U (en) * | 2018-12-17 | 2019-07-26 | 天津卓一科技有限公司 | A kind of surge protector of low-voltage distribution system |
| CN209101166U (en) * | 2019-01-17 | 2019-07-12 | 张英 | A kind of architectural lighting device based on BIM |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111049323A (en) * | 2020-01-19 | 2020-04-21 | 广州扬坪机电科技有限公司 | Motor with emergency protection device and convenient to move |
| CN111049323B (en) * | 2020-01-19 | 2020-11-03 | 东阳市中兴电机有限公司 | Motor with emergency protection function and convenient to move |
| CN111678079A (en) * | 2020-06-23 | 2020-09-18 | 齐广东 | New forms of energy wisdom street lamp device of extension 5G signal |
| CN111678079B (en) * | 2020-06-23 | 2022-03-11 | 百家亮(厦门)光能科技有限公司 | New forms of energy wisdom street lamp device of extension 5G signal |
| CN112216572A (en) * | 2020-10-16 | 2021-01-12 | 周长鸿 | High-low voltage power distribution cabinet indicating instrument protection against electric shock structure |
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Application publication date: 20191213 |
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| RJ01 | Rejection of invention patent application after publication |