CN112509347A - Anti-vibration train signal lamp - Google Patents
Anti-vibration train signal lamp Download PDFInfo
- Publication number
- CN112509347A CN112509347A CN202011382205.2A CN202011382205A CN112509347A CN 112509347 A CN112509347 A CN 112509347A CN 202011382205 A CN202011382205 A CN 202011382205A CN 112509347 A CN112509347 A CN 112509347A
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- signal lamp
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
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- General Physics & Mathematics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses an anti-vibration train signal lamp, which comprises a working box, wherein limit cavities which are bilaterally symmetrical and have downward openings are arranged on the end surface of the bottom of the working box, limit strips fixedly connected with the ground are arranged in the limit cavities in a sliding manner, a buffer spring fixedly connected with the end surface of the top of the ground is fixedly arranged on the end surface of the bottom of the working box, a magnet is fixedly arranged on the end surface of the top of the ground, an energy storage cavity is arranged in the working box, and a permanent magnet sliding chute is arranged on the bottom wall in the energy storage cavity; the invention realizes the shock absorption of the signal lamp according to the ground shock condition, avoids the damage of electronic components in the signal lamp caused by severe ground shock, stores energy by taking the ground shock as a power source, automatically finishes the cleaning of the signal lamp after the energy storage is finished, and ensures the cleaning of the signal lamp after the ground shock raises dust.
Description
Technical Field
The invention relates to the related field of traffic signal lamps, in particular to an anti-vibration train signal lamp.
Background
The traffic signal lamp is a signal lamp for commanding traffic operation, generally comprises a red lamp, a green lamp and a yellow lamp, wherein the red lamp represents no traffic, the green lamp represents permission, the yellow lamp represents warning, and the traffic signal lamp is widely applied to various large traffic fields of roads and comprises an operation system of trains.
At the present stage, because the train has large load capacity, the vibration of the ground can be caused when the train runs, the vibration of the ground can cause the damage of electronic components in the signal lamp, and the service life of the traffic signal lamp for commanding the train is shortened.
Disclosure of Invention
The invention aims to solve the technical problem of providing an anti-vibration train signal lamp, and solves the problem.
The invention discloses an anti-vibration train signal lamp, which comprises a working box, wherein a left-right symmetrical limiting cavity with a downward opening is arranged on the end surface of the bottom of the working box, a limiting strip fixedly connected with the ground is arranged in the limiting cavity in a sliding manner, a buffer spring fixedly connected with the end surface of the top of the ground is fixedly arranged on the end surface of the bottom of the working box, a magnet is fixedly arranged on the end surface of the top of the ground, an energy storage cavity is arranged in the working box, a permanent magnet sliding groove is arranged on the bottom wall in the energy storage cavity, lifting block sliding grooves which are left-right symmetrical and upward in opening and a signal lamp working block sliding groove with an upward opening are arranged on the end surface of the top of the working box, an electromagnet matched with the magnet is fixedly arranged on the inner bottom wall of the permanent magnet sliding groove, a permanent magnet is arranged in the permanent magnet sliding groove in a sliding manner, and a, the permanent magnet synchronous motor is characterized in that a first stay cord is fixedly connected to the end face of the top of the permanent magnet, a transmission gear cavity with an opening far away from the center of the permanent magnet chute is arranged on the inner wall of one side of the limit cavity close to the center of the permanent magnet chute, a transmission shaft extending to the front side and the rear side is arranged on the inner wall of the transmission gear cavity in a rotating manner, a rack is fixedly arranged on the end face of one side of the limit strip close to the center of the permanent magnet chute, a transmission gear meshed with the rack is fixedly arranged on the transmission shaft, a magnetic induction cavity is arranged on the inner wall of the rear side of the transmission gear cavity, the transmission shaft penetrates through the front inner wall and the rear inner wall of the magnetic induction cavity backwards and is connected with the magnetic induction cavity in a rotating and matching manner, a vertically symmetrical wire frame is fixedly arranged on the, be equipped with the piston chamber on the inner wall of transmission gear chamber front side, the piston intracavity slides and is equipped with airtight piston, the fixed piston rack that is equipped with on the airtight piston bottom end face, the transmission shaft runs through forward the piston chamber front and back inner wall and be connected with it normal running fit, the transmission shaft is located fixed being equipped with in the part of piston intracavity with piston rack engaged with piston drive gear, the intercommunication has pipeline one and the pipeline two with external cleaning solution filling equipment intercommunication on the piston intracavity roof, pipeline one with equal fixed check valve that is equipped with in the pipeline two.
Further, it is equipped with signal lamp work piece to slide in the signal lamp work piece spout, be equipped with the signal lamp installation cavity that the opening is preceding on the terminal surface before the signal lamp work piece, the fixed signal lamp that is equipped with longitudinal symmetry on the inner wall of signal lamp installation cavity rear side, the fixed flight piece that is equipped with bilateral symmetry on the terminal surface about the signal lamp work piece, the fixed flying motor that is equipped with on the terminal surface of flight piece top, power connection has the flight leaf on the terminal surface of flying motor top, be equipped with the ascending compression piece spout of opening on the diapire in the signal lamp work piece spout, it is equipped with the compression piece to slide in the compression piece spout, be fixed be equipped with on the compression piece bottom terminal surface with compression piece spring of bottom wall fixed connection in the compression piece spout, fixedly connected with stay cord two on the compression.
Further, the inner wall of the right side of the energy storage cavity is communicated with a third pipeline and the other end of the first pipeline, an electromagnetic valve is fixedly arranged in the third pipeline, an energy storage piston is arranged in the energy storage cavity in a sliding mode, an energy storage spring fixedly connected with the inner wall of the left side of the energy storage cavity is fixedly arranged on the end face of the left side of the energy storage piston, and signal blocks which are bilaterally symmetrical and matched with signals of the energy storage piston are fixedly arranged on the top wall of the energy storage cavity.
Further, it is equipped with the lifting piece to slide in the lifting piece spout, fixedly on the lifting piece bottom terminal surface be equipped with diapire fixed connection's lifting piece spring in the lifting piece spout, fixedly connected with on the lifting piece bottom terminal surface the other end of stay cord one, the fixed apron fixed block that is equipped with on the lifting piece top terminal surface.
Further, the fixed apron fixed axle that is equipped with on the apron fixed block front end face, it is equipped with the apron to rotate on the apron fixed axle, the apron with fixedly connected with apron torsional spring between the apron fixed axle, lifting piece spout is kept away from be equipped with the opening orientation on the inner wall of signal lamp work piece spout one side the fixture block spout at signal lamp work piece spout center, it is equipped with the fixture block to slide in the fixture block spout, the fixture block is kept away from fixed being equipped with on the terminal surface of signal lamp work piece spout center one side with fixture block spout inner wall fixed connection's fixture block spring, the fixture block is kept away from fixedly connected with on the terminal surface of signal lamp work piece spout center one side the other end of stay.
Furthermore, a spray head cavity with an upward opening is formed in the end face of the top of the working box, spray heads are fixedly arranged on the left inner wall and the right inner wall of the spray head cavity, and the end face of the bottom of each spray head is fixedly communicated with the other end of the corresponding pipeline III.
The invention has the beneficial effects that: the vibration-absorbing device is simple in structure and convenient and fast to operate, the signal lamp is damped according to the ground vibration condition, damage to electronic components in the signal lamp due to severe ground vibration is avoided, energy is stored by taking the ground vibration as a power source, cleaning of the signal lamp is automatically completed after energy storage is completed, and cleaning of the signal lamp after ground vibration and dust emission is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram at A-A in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram at B-B in FIG. 1 according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic structural diagram of the embodiment of the present invention at C in FIG. 1.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The shock-proof train signal lamp comprises a working box 10, wherein a bilateral symmetry limiting cavity 11 with a downward opening is arranged on the bottom end face of the working box 10, a limiting strip 12 fixedly connected with the ground 14 is arranged in the limiting cavity 11 in a sliding manner, a buffer spring 13 fixedly connected with the top end face of the ground 14 is fixedly arranged on the bottom end face of the working box 10, a magnet 15 is fixedly arranged on the top end face of the ground 14, an energy storage cavity 60 is arranged in the working box 10, a permanent magnet sliding groove 18 is arranged on the bottom wall of the energy storage cavity 60, a lifting block sliding groove 38 with a bilateral symmetry upward opening and a signal lamp working block sliding groove 30 with an upward opening are arranged on the top end face of the working box 10 and positioned between the two lifting block sliding grooves 38, and an electromagnet 17 matched with the magnet 15 is fixedly arranged on the bottom wall in the permanent magnet sliding groove 18, slide in the permanent magnet spout 18 and be equipped with permanent magnet 21, fixed being equipped with on the terminal surface of the top of permanent magnet 21 with roof fixed connection's permanent magnet spring 20 in the permanent magnet spout 18, fixedly connected with stay cord 22 on the terminal surface of the top of permanent magnet 21, spacing chamber 11 is close to be equipped with the opening on the inner wall of permanent magnet spout 18 center one side and keeps away from the transmission gear chamber 19 at permanent magnet spout 18 center, rotate on the inner wall around the transmission gear chamber 19 and be equipped with the transmission shaft 46 that extends to front and back both sides, spacing strip 12 is close to fixed being equipped with rack 16 on the terminal surface of permanent magnet spout 18 center one side, fixed being equipped with on the transmission shaft 46 with rack 16 engaged with drive gear 45, be equipped with magnetism sensing chamber 43 on the inner wall of transmission gear chamber 19 rear side, transmission shaft 46 runs through backward around magnetism sensing chamber 43 and is connected with, the transmission shaft 46 is fixed with a vertically symmetrical wire frame 44 on the part located in the magnetic induction cavity 43, when current is generated in the wire frame 44, the electromagnet 17 is electrified, the upper inner wall and the lower inner wall of the magnetic induction cavity 43 are both fixedly provided with a magnet block 42, a piston cavity 47 is arranged on the inner wall of the front side of the transmission gear cavity 19, an airtight piston 50 is arranged in the piston cavity 47 in a sliding manner, a piston rack 48 is fixedly arranged on the end surface of the bottom of the airtight piston 50, the transmission shaft 46 forwards penetrates through the front inner wall and the rear inner wall of the piston cavity 47 and is connected with the front inner wall and the rear inner wall in a rotating fit manner, a piston transmission gear 49 meshed with the piston rack 48 is fixedly arranged on the part of the transmission shaft 46 positioned in the piston cavity 47, a first pipeline 51 and a second pipeline 52 communicated with an external cleaning liquid filling device are communicated with the top wall in the piston cavity 47, and a one-way valve 61 is fixedly arranged in each of the first pipeline 51 and the second pipeline 52.
Beneficially, the signal lamp working block sliding slot 30 is slidably provided with a signal lamp working block 31, a signal lamp installation cavity 32 with a forward opening is arranged on the front end face of the signal lamp working block 31, the inner wall of the rear side of the signal lamp installation cavity 32 is fixedly provided with vertically symmetrical signal lamps 33, the left end face and the right end face of the signal lamp working block 31 are fixedly provided with horizontally symmetrical flying blocks 27, a flying motor 28 is fixedly arranged on the top end surface of the flying block 27, a flying blade 29 is dynamically connected on the top end surface of the flying motor 28, a pressed block sliding groove 57 with an upward opening is arranged on the inner bottom wall of the signal lamp working block sliding groove 30, the compression block sliding groove 57 is internally provided with a compression block 58 in a sliding manner, the bottom end face of the compression block 58 is fixedly provided with a compression block spring 56 fixedly connected with the bottom wall of the compression block sliding groove 57, and the left end face of the compression block 58 is fixedly connected with a second pull rope 25.
Beneficially, the inner wall of the right side of the energy storage cavity 60 is communicated with a third pipeline 41 and the other end of the first pipeline 51, the third pipeline 41 is internally and fixedly provided with an electromagnetic valve 55, the energy storage cavity 60 is internally and slidably provided with an energy storage piston 54, the left side end face of the energy storage piston 54 is fixedly provided with an energy storage spring 53 fixedly connected with the inner wall of the left side of the energy storage cavity 60, and the inner top wall of the energy storage cavity 60 is fixedly provided with signal blocks 59 which are bilaterally symmetrical and are in signal fit with the energy storage piston 54.
Beneficially, the lifting block 37 is slidably arranged in the lifting block sliding groove 38, a lifting block spring 63 fixedly connected with the bottom wall of the lifting block sliding groove 38 is fixedly arranged on the bottom end face of the lifting block 37, the other end of the first pull rope 22 is fixedly connected to the bottom end face of the lifting block 37, and a cover plate fixing block 36 is fixedly arranged on the top end face of the lifting block 37.
Beneficially, the fixed apron fixed axle 35 that is equipped with on the face of apron fixed block 36 front side, it is equipped with apron 34 to rotate on the apron fixed axle 35, apron 34 with fixedly connected with apron torsional spring 62 between the apron fixed axle 35, lifting piece spout 38 is kept away from be equipped with the opening orientation on the inner wall of signal lamp work piece spout 30 one side fixture block spout 24 at signal lamp work piece spout 30 center, it is equipped with fixture block 23 to slide in fixture block spout 24, fixture block 23 keeps away from fixedly on the terminal surface of signal lamp work piece spout 30 center one side be equipped with fixture block spring 26 of fixture block spout 24 inner wall fixed connection, fixture block 23 keeps away from fixedly connected with on the terminal surface of signal lamp work piece spout 30 center one side the other end of stay cord two 25.
Beneficially, the top end face of the working box 10 is provided with a nozzle cavity 39 with an upward opening, the left inner wall and the right inner wall of the nozzle cavity 39 are fixedly provided with nozzles 40, and the bottom end face of the nozzle 40 is fixedly communicated with the other end of the third pipeline 41.
Under the initial condition, signal lamp work piece 31 bottom terminal surface with the wall butt in the signal lamp work piece spout 30, lifting piece 37 is in lifting piece spring 63's effect is located last extreme position down, apron 34 is in seal under apron torsional spring 62's the effect signal lamp work piece spout 30, receive compression block spring 56 with fixture block spring 26 all is in compression state, permanent magnet 21 is in be located last extreme position under permanent magnet spring 20's the effect.
When a train passes through the ground, the working box 10 is damped by the buffer spring 13, the limiting strip 12 moves up and down relative to the working box 10, so that the rack 16 drives the transmission gear 45 meshed with the rack to rotate in a periodic reciprocating manner, the transmission gear 45 rotates to drive the piston transmission gear 49 coaxial with the transmission gear and the wire frame 44 to rotate in a periodic reciprocating manner, the wire frame 44 rotates to cut a magnetic induction line, when the ground is severely vibrated, the rotation speed of the wire frame 44 is too high, so that current generated in the wire frame 44 is electrified to the electromagnet 17, the electromagnet 17 is repelled with the magnet 15, and the vibration of the working box 10 is reduced;
when the rotation speed of the wire frame 44 is continuously increased, so that the magnetic force generated by the electromagnet 17 is continuously increased, the permanent magnet 21 is attracted to move downwards to tighten the first pulling rope 22, the lifting block 37 moves downwards, the cover plate 34 is accommodated in the lifting block sliding groove 38, the flying motor 28 is started to drive the flying blade 29 to rotate, the flying block 27 and the signal lamp working block 31 are driven to fly upwards to separate from the ground, the damage of vibration to the signal lamp is avoided, the signal lamp working block 31 moves upwards to enable the pressed block 58 to move upwards under the action of the pressed block spring 56 to loosen the second pulling rope 25, so that the fixture block 23 extends into the lifting block sliding groove 38 under the action of the fixture spring 26 to abut against the lifting block 37 to prevent the lifting block 37 from moving upwards, after the ground vibration is finished, the signal lamp working block 31 resets to press the pressed block 58 to tighten the second pulling rope 25, the fixture block 23 resets, the permanent magnet, the first pull rope 22 is loosened, so that the lifting block 37 is reset upwards under the action of the lifting block spring 63, and the cover plate 34 is reset under the action of the cover plate torsion spring 62;
the piston transmission gear 49 rotates in a reciprocating mode periodically to drive the piston rack 48 meshed with the piston transmission gear to drive the airtight piston 50 to move up and down, external cleaning liquid is pumped through the pipeline two 52, the pipeline one 51 pressurizes the energy storage cavity 60, the energy storage piston 54 is pushed to move leftwards to compress the energy storage spring 53, when the energy storage piston 54 is abutted to the signal block 59 on the left side, the electromagnetic valve 55 is communicated with the pipeline three 41 and the energy storage cavity 60, the energy storage piston 54 is located rightwards under the action of the energy storage spring 53, and the cleaning liquid in the energy storage cavity 60 is enabled to wash the signal lamp 33 through the pipeline three 41 and the spray head 40.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a train signal lamp of shock resistance, includes the work box, its characterized in that: the end face of the bottom of the working box is provided with bilaterally symmetrical limiting cavities with downward openings, limiting strips fixedly connected with the ground are arranged in the limiting cavities in a sliding mode, the end face of the bottom of the working box is fixedly provided with a buffer spring fixedly connected with the end face of the top of the ground, the end face of the top of the ground is fixedly provided with a magnet, an energy storage cavity is arranged in the working box, the bottom wall of the energy storage cavity is provided with permanent magnet chutes, and the end face of the top of the working box is provided with bilaterally symmetrical lifting block chutes with upward openings and signal lamp working block chutes with upward openings between the two lifting block chutes; an electromagnet matched with the magnet is fixedly arranged on the inner bottom wall of the permanent magnet sliding groove, a permanent magnet is arranged in the permanent magnet sliding groove in a sliding manner, a permanent magnet spring fixedly connected with the inner top wall of the permanent magnet sliding groove is fixedly arranged on the top end face of the permanent magnet, a first pull rope is fixedly connected on the top end face of the permanent magnet, a transmission gear cavity with an opening far away from the center of the permanent magnet sliding groove is arranged on the inner wall of one side, close to the center of the permanent magnet sliding groove, of the limiting cavity, a transmission shaft extending towards the front side and the rear side is rotatably arranged on the front inner wall and the rear inner wall of the transmission gear cavity, a rack is fixedly arranged on the end face of one side, close to the center of the permanent magnet sliding groove, a transmission gear meshed with the rack is fixedly arranged on the transmission shaft, a magnetic induction, the transmission shaft is located fixed wire frame that is equipped with longitudinal symmetry on the part of magnetism sensing intracavity, it is right during the production electric current in the wire frame the electro-magnet circular telegram, all fixed magnet piece that is equipped with on the upper and lower inner wall in magnetism sensing chamber, be equipped with the piston chamber on the transmission gear chamber front side inner wall, the slip of piston intracavity is equipped with airtight piston, the fixed piston rack that is equipped with on the airtight piston bottom terminal surface, the transmission shaft runs through forward inner wall and normal running fit connection with it around the piston chamber, the transmission shaft is located fixed being equipped with in the part of piston intracavity with piston rack engaged with piston drive gear, the intercommunication has pipeline one and the pipeline two with external cleaning solution filling equipment intercommunication on the piston intracavity roof, pipeline one with equal fixed check valve that is equipped with in the pipeline two.
2. The vibration-proof train signal lamp of claim 1, wherein: the utility model discloses a lamp, including signal lamp working piece spout, fixed flight piece, fixed flight motor, power connection has the flight leaf on the flight motor top terminal surface, be equipped with the ascending piece spout that presses of opening on the diapire in the signal lamp working piece spout, slide in the piece spout and be equipped with the pressure piece, press fixed be equipped with on the piece bottom terminal surface with press piece spout in the piece spout, press fixedly on the piece bottom terminal surface with press piece spring of diapire fixed connection in the piece spout, press fixedly connected with stay cord two on the piece left side terminal surface.
3. The vibration-proof train signal lamp of claim 1, wherein: the energy storage piston is characterized in that the inner wall of the right side of the energy storage cavity is communicated with a third pipeline and the other end of the first pipeline, an electromagnetic valve is fixedly arranged in the third pipeline, an energy storage piston is arranged in the energy storage cavity in a sliding mode, an energy storage spring fixedly connected with the inner wall of the left side of the energy storage cavity is fixedly arranged on the end face of the left side of the energy storage piston, and signal blocks which are bilaterally symmetrical and matched with signals of the energy storage piston are fixedly arranged on the top wall of.
4. The vibration-proof train signal lamp of claim 1, wherein: the lifting piece is characterized in that a lifting piece is arranged in the lifting piece sliding groove in a sliding mode, a lifting piece spring fixedly connected with the bottom wall in the lifting piece sliding groove is fixedly arranged on the end face of the bottom of the lifting piece, the other end of the first stay cord is fixedly connected to the end face of the bottom of the lifting piece, and a cover plate fixing block is fixedly arranged on the end face of the top of the lifting piece.
5. The vibration-proof train signal lamp of claim 4, wherein: the fixed apron fixed axle that is equipped with on the apron fixed block front end face, it is equipped with the apron to rotate on the apron fixed axle, the apron with fixedly connected with apron torsional spring between the apron fixed axle, lifting piece spout is kept away from be equipped with the opening orientation on the inner wall of signal lamp work piece spout one side the fixture block spout at signal lamp work piece spout center, it is equipped with the fixture block to slide in the fixture block spout, the fixture block is kept away from fixedly on the terminal surface of signal lamp work piece spout center one side be equipped with fixture block spout inner wall fixed connection's fixture block spring, the fixture block is kept away from fixedly connected with on the terminal surface of signal lamp work piece spout center one side the other end.
6. The vibration-proof train signal lamp of claim 1, wherein: and a spray head cavity with an upward opening is formed in the end face of the top of the working box, spray heads are fixedly arranged on the left inner wall and the right inner wall of the spray head cavity, and the end face of the bottom of each spray head is fixedly communicated with the other end of the corresponding pipeline III.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382205.2A CN112509347A (en) | 2020-12-01 | 2020-12-01 | Anti-vibration train signal lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382205.2A CN112509347A (en) | 2020-12-01 | 2020-12-01 | Anti-vibration train signal lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112509347A true CN112509347A (en) | 2021-03-16 |
Family
ID=74968842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011382205.2A Withdrawn CN112509347A (en) | 2020-12-01 | 2020-12-01 | Anti-vibration train signal lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112509347A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114202946A (en) * | 2021-12-10 | 2022-03-18 | 浙江瑞利工程有限公司 | Wisdom city signal lamp based on automatic bottom strengthening of wind-force prevents rocking |
-
2020
- 2020-12-01 CN CN202011382205.2A patent/CN112509347A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114202946A (en) * | 2021-12-10 | 2022-03-18 | 浙江瑞利工程有限公司 | Wisdom city signal lamp based on automatic bottom strengthening of wind-force prevents rocking |
| CN114202946B (en) * | 2021-12-10 | 2022-11-08 | 浙江瑞利工程有限公司 | Wisdom city signal lamp based on automatic bottom strengthening of wind-force prevents rocking |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210316 |
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| WW01 | Invention patent application withdrawn after publication |