CN114348151A - Electric vehicle speed reducer exceeding specified speed - Google Patents

Electric vehicle speed reducer exceeding specified speed Download PDF

Info

Publication number
CN114348151A
CN114348151A CN202111482590.2A CN202111482590A CN114348151A CN 114348151 A CN114348151 A CN 114348151A CN 202111482590 A CN202111482590 A CN 202111482590A CN 114348151 A CN114348151 A CN 114348151A
Authority
CN
China
Prior art keywords
fixedly connected
wall
electric
electric vehicle
casing
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.)
Pending
Application number
CN202111482590.2A
Other languages
Chinese (zh)
Inventor
张战东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Jinmaoyuan Automobile Industry Co ltd
Original Assignee
Xuzhou Jinmaoyuan Automobile Industry Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xuzhou Jinmaoyuan Automobile Industry Co ltd filed Critical Xuzhou Jinmaoyuan Automobile Industry Co ltd
Priority to CN202111482590.2A priority Critical patent/CN114348151A/en
Publication of CN114348151A publication Critical patent/CN114348151A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility

Landscapes

  • Traffic Control Systems (AREA)

Abstract

The invention relates to the technical field of traffic, and discloses an electric vehicle speed reducing device after exceeding a specified speed, which comprises a shell, a driving unit, an alarm mechanism and a speed reducing mechanism, wherein the alarm mechanism is fixedly connected to two sides in the shell, the speed reducing mechanism is fixedly connected to the upper end and the lower end in the shell, a groove is formed in the shell, an electrode bar is fixedly connected to one end, close to the inner wall of the shell, of the groove, one end, close to a pushing frame, of the electrode bar is fixedly connected with an electric heating sheet, the inner wall of the pushing frame is movably connected with an electric contact, and the outer side of the groove is fixedly connected with a conductive rail. The photoelectric sounder electrically connected with the closed coil gives an alarm to remind the rider to decelerate.

Description

Electric vehicle speed reducer exceeding specified speed
Technical Field
The invention relates to the technical field of traffic, in particular to a speed reducer of an electric vehicle after a specified speed is exceeded.
Background
Electric vehicles, i.e., electric drive vehicles, also known as electric drive vehicles; the electric vehicle is divided into an alternating current electric vehicle and a direct current electric vehicle, generally speaking, the electric vehicle takes a battery as an energy source, electric energy is converted into mechanical energy to move through a controller, a motor and other components so as to control the current to change the speed, and the share of the electric vehicle in the national economy is not very high; it plays an important role in national economy through energy and environmental conservation and protection.
At present, along with the development of society, the use amount of electric vehicles in cities is higher and higher, and the problems caused by the use amount of the electric vehicles are more and more obvious, when the electric vehicles run quickly, in case of emergency braking, personal injury can be caused to riders, and meanwhile, when the riders ride the electric vehicles, the riders feel fuzzy on the speed due to the fact that the electric vehicles are accelerated slowly, and traffic accidents can not be measured.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the electric vehicle speed reducing device after the speed exceeds the specified speed, which has the advantages of high safety, automatic speed reduction and the like, and solves the problem of low safety of the existing equipment.
(II) technical scheme
In order to achieve the purposes of high safety and automatic deceleration, the invention provides the following technical scheme: the utility model provides an surpass electric motor car decelerator behind regular speed, includes casing, drive unit, still includes alarm mechanism, reduction gears, alarm mechanism fixed connection is in the inside both sides of casing, reduction gears fixed connection is in the inside upper and lower both ends of casing.
Preferably, alarm mechanism includes spring, spout, sliding block, ball, elastic frame, spread groove, closed coil, permanent magnet, photoelectric generator, spring fixed connection be in the inner wall of casing, the inside swing joint of spout has the sliding block, the inner wall swing joint of sliding block has the ball, the inner wall of casing and being close to the outside of spout has been seted up the spread groove, the inner wall elastic connection of spread groove has the elastic frame, the inner wall fixedly connected with of elastic frame closed coil, the inner wall fixedly connected with of spread groove the permanent magnet, the inner wall fixedly connected with of casing photoelectric generator, alarm mechanism plays the effect that the suggestion rider slowed down.
Preferably, the material of sliding block is the rubber material, the structure of ball is the spheroid design, the ball symmetric distribution is in the both sides of sliding block, the effect of ball improves the sliding action of sliding block.
Preferably, the closed coil is located on the outer side of the permanent magnet, and the closed coil is electrically connected with the photoelectric sounder.
Preferably, reduction gears includes recess, electrode bar, the electricity piece that generates heat, promotes frame, electric contact, conductor rail, electro-magnet, magnetic elongation pole, piezo-resistor, seted up the inside of casing the recess, electrode bar fixed connection is in the recess is close to shells inner wall's one end, the electrode bar is close to the one end fixedly connected with electricity piece that generates heat of promoting the frame, the inner wall swing joint that promotes the frame has the electric contact, the outside fixedly connected with of recess the conductor rail, the recess outside is close to the one end fixedly connected with of conductor rail the electro-magnet, the one end fixedly connected with that the drive unit is close to in the electro-magnet outside the magnetic elongation pole, drive unit's inside fixedly connected with piezo-resistor, reduction gears is when the speed is too fast to the effect of drive unit speed reduction.
Preferably, the closed coil is electrically connected with the electrode bar, the closed coil plays a role in generating current, the electrode bar is electrically connected with the electric heating sheet, and the electric heating sheet plays a role in heating.
Preferably, the structure of the electric contact is a spherical structure, the electric contacts are symmetrically distributed on two sides of the pushing frame, the electric contacts are electrically connected with the piezoresistor, and the electric contacts play a role in connecting a circuit.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. this kind of surpass electric motor car decelerator behind regular speed, when the speed of electric motor car surpassed regular speed, constantly removed to the outside along the spout under the effect of ball at the sliding block of centrifugal force, and then striking elastic frame, removed to the outside along the spread groove, under the condition that elastic frame removed to the outside, closed coil can cut the permanent magnet and form the electric current, makes the photoelectric sound production ware with closed coil electric connection send out the police dispatch newspaper to remind the rider to slow down.
2. This kind of surpass electric motor car decelerator behind regulation speed, because closed coil and electrode bar electric connection, the electrode bar makes the electric heating piece generate heat, and nitrogen gas in the recess is along with the promotion of temperature constantly expands, thereby promote the direction removal of pushing away the frame to drive unit, contact with the conductor rail when the electric contact, thereby make the electro-magnet produce magnetism and make the magnetostrictive rod extend under the effect in magnetic field, thereby be connected the speed that reduces drive current with drive unit's electric connecting rod and piezo-resistor.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the alarm mechanism of the present invention;
FIG. 3 is a schematic structural view of the speed reducing mechanism of the present invention;
fig. 4 is a schematic diagram of the structure of the invention after deceleration.
In the figure: 1. a housing; 2. a drive unit; 3. an alarm mechanism; 4. a speed reduction mechanism; 31. a spring; 32. a chute; 33. a slider; 34. a ball bearing; 35. an elastic frame; 36. connecting grooves; 37. closing the coil; 38. a permanent magnet; 39. a photoelectric sound generator; 41. a groove; 42. an electrode rod; 43. an electric heating sheet; 44. a pushing frame; 45. an electrical contact; 46. a conductive rail; 47. an electromagnet; 48. a magnetically elongated rod; 49. a voltage dependent resistor.
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.
The first embodiment is as follows:
referring to fig. 1-2, the present invention provides a speed reducer for an electric vehicle after exceeding a predetermined speed, which comprises a housing 1, a driving unit 2, an alarm mechanism 3 and a speed reducing mechanism 4, wherein the alarm mechanism 3 is fixedly connected to two sides of the interior of the housing 1, and the speed reducing mechanism 4 is fixedly connected to the upper and lower ends of the interior of the housing 1.
Further, the alarm mechanism 3 includes a spring 31, a sliding groove 32, a sliding block 33, a rolling ball 34, an elastic frame 35, a connecting groove 36, a closed coil 37, a permanent magnet 38, and a photoelectric sound generator 39, the spring 31 is fixedly connected to the inner wall of the housing 1, the sliding block 33 is movably connected to the inside of the sliding groove 32, the rolling ball 34 is movably connected to the inner wall of the sliding block 33, the sliding block 33 is made of rubber, the rolling ball 34 is in a spherical structure, the rolling ball 34 is symmetrically distributed on two sides of the sliding block 33, the sliding effect of the sliding block 33 is improved by the action of the rolling ball 34, the connecting groove 36 is formed on the inner wall of the housing 1 and close to the outer side of the sliding groove 32, the elastic frame 35 is elastically connected to the inner wall of the connecting groove 36, the closed coil 37 is fixedly connected to the inner wall of the elastic frame 35, the permanent magnet 38 is fixedly connected to the inner wall of the connecting groove 36, the photoelectric sound generator 39 is fixedly connected to the inner wall of the housing 1, the closed coil 37 is located on the outer side of the permanent magnet 38, the closing coil 37 is electrically connected with the photoelectric sounder 39, the closing coil 37 plays a role in generating current, and the alarm mechanism 3 plays a role in prompting the speed reduction of the rider.
Example two:
referring to fig. 1-4, the present invention provides a speed reducer for an electric vehicle after exceeding a predetermined speed, which comprises a housing 1, a driving unit 2, an alarm mechanism 3 and a speed reducing mechanism 4, wherein the alarm mechanism 3 is fixedly connected to two sides of the interior of the housing 1, and the speed reducing mechanism 4 is fixedly connected to the upper and lower ends of the interior of the housing 1.
Further, the speed reducing mechanism 4 comprises a groove 41, an electrode rod 42, an electric heating sheet 43, a pushing frame 44, an electric contact 45, a conductive rail 46, an electromagnet 47, a magnetic extension rod 48 and a piezoresistor 49, wherein the groove 41 is formed in the casing 1, nitrogen is filled in one end of the groove 41 close to the inner wall of the casing 1, the electrode rod 42 is fixedly connected to one end of the groove 41 close to the inner wall of the casing 1, the electric heating sheet 43 is fixedly connected to one end of the electrode rod 42 close to the pushing frame 44, the number of the electrode rods 42 is set to be two, the two electrode rods are uniformly distributed at one end of the groove 41 close to the inner wall of the casing 1, the closed coil 37 is electrically connected with the electrode rod 42, the closed coil 37 plays a role in generating current, the electrode rod 42 is electrically connected with the electric heating sheet 43, the electric heating sheet 43 plays a heating role, the electric contact 45 is movably connected to the inner wall of the pushing frame 44, and the electric contact 45 is in a spherical structure, the electric contacts 45 are symmetrically distributed on two sides of the pushing frame 44, the electric contacts 45 are electrically connected with the piezoresistor 49, the conductive rail 46 is fixedly connected to the outer side of the groove 41, the electromagnet 47 is fixedly connected to one end, close to the conductive rail 46, of the outer side of the groove 41, the magnetic extension rod 48 is fixedly connected to one end, close to the driving unit 2, of the outer side of the electromagnet 47, the piezoresistor 49 is fixedly connected to the inner portion of the driving unit 2, and the speed reducing mechanism 4 is used for reducing the speed of the driving unit 2 when the speed is too high.
Example three:
referring to fig. 1-4, the present invention provides a speed reducer for an electric vehicle after exceeding a predetermined speed, which comprises a housing 1, a driving unit 2, an alarm mechanism 3 and a speed reducing mechanism 4, wherein the alarm mechanism 3 is fixedly connected to two sides of the interior of the housing 1, and the speed reducing mechanism 4 is fixedly connected to the upper and lower ends of the interior of the housing 1.
Further, the alarm mechanism 3 includes a spring 31, a sliding groove 32, a sliding block 33, a rolling ball 34, an elastic frame 35, a connecting groove 36, a closed coil 37, a permanent magnet 38, and a photoelectric sound generator 39, the spring 31 is fixedly connected to the inner wall of the housing 1, the sliding block 33 is movably connected to the inside of the sliding groove 32, the rolling ball 34 is movably connected to the inner wall of the sliding block 33, the sliding block 33 is made of rubber, the rolling ball 34 is in a spherical structure, the rolling ball 34 is symmetrically distributed on two sides of the sliding block 33, the sliding effect of the sliding block 33 is improved by the action of the rolling ball 34, the connecting groove 36 is formed on the inner wall of the housing 1 and close to the outer side of the sliding groove 32, the elastic frame 35 is elastically connected to the inner wall of the connecting groove 36, the closed coil 37 is fixedly connected to the inner wall of the elastic frame 35, the permanent magnet 38 is fixedly connected to the inner wall of the connecting groove 36, the photoelectric sound generator 39 is fixedly connected to the inner wall of the housing 1, the closed coil 37 is located on the outer side of the permanent magnet 38, the closing coil 37 is electrically connected with the photoelectric sounder 39, the closing coil 37 plays a role in generating current, and the alarm mechanism 3 plays a role in prompting the speed reduction of the rider.
Further, the speed reducing mechanism 4 comprises a groove 41, an electrode rod 42, an electric heating sheet 43, a pushing frame 44, an electric contact 45, a conductive rail 46, an electromagnet 47, a magnetic extension rod 48 and a piezoresistor 49, wherein the groove 41 is formed in the casing 1, nitrogen is filled in one end of the groove 41 close to the inner wall of the casing 1, the electrode rod 42 is fixedly connected to one end of the groove 41 close to the inner wall of the casing 1, the electric heating sheet 43 is fixedly connected to one end of the electrode rod 42 close to the pushing frame 44, the number of the electrode rods 42 is set to be two, the two electrode rods are uniformly distributed at one end of the groove 41 close to the inner wall of the casing 1, the closed coil 37 is electrically connected with the electrode rod 42, the closed coil 37 plays a role in generating current, the electrode rod 42 is electrically connected with the electric heating sheet 43, the electric heating sheet 43 plays a heating role, the electric contact 45 is movably connected to the inner wall of the pushing frame 44, and the electric contact 45 is in a spherical structure, the electric contacts 45 are symmetrically distributed on two sides of the pushing frame 44, the electric contacts 45 are electrically connected with the piezoresistor 49, the conductive rail 46 is fixedly connected to the outer side of the groove 41, the electromagnet 47 is fixedly connected to one end, close to the conductive rail 46, of the outer side of the groove 41, the magnetic extension rod 48 is fixedly connected to one end, close to the driving unit 2, of the outer side of the electromagnet 47, the piezoresistor 49 is fixedly connected to the inner portion of the driving unit 2, and the speed reducing mechanism 4 is used for reducing the speed of the driving unit 2 when the speed is too high.
The working principle is as follows: when the speed of the electric vehicle exceeds the specified speed, the sliding block 33 in the alarm mechanism 3 continuously moves outwards along the sliding groove 32 under the action of the ball 34 under the action of centrifugal force, further collides with the elastic frame 35 and moves outwards along the connecting groove 36, and the closing coil 37 is positioned outside the permanent magnet 38, so that the closing coil 37 can cut the permanent magnet 38 to form a magnetic field under the condition that the elastic frame 35 moves outwards, and based on the electromagnetic induction principle, current can be generated in the closing coil 37, so that the photoelectric sound generator 39 electrically connected with the closing coil 37 gives an alarm, and the driver is reminded of decelerating.
If the rider does not decelerate after reminding the rider to decelerate, because the closed coil 37 is electrically connected with the electrode rod 42, the electric heating sheet 43 generates heat under the action of current, nitrogen in the groove 41 continuously expands along with the rise of temperature based on the Gao-Lussac law, so that the pushing frame 44 is pushed to move towards the driving unit 2, the electric contact 45 is contacted with the conductive rail 46 along with the movement of the pushing frame 44, and the electromagnet 47 generates magnetism to enable the magnetostrictive rod to extend under the action of the magnetic field, so that the electric connecting rod of the driving unit 2 is connected with the piezoresistor 49 to reduce the driving current, thereby reducing the speed of the electric vehicle.
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 (7)

1. A speed reducer of an electric vehicle after exceeding a specified speed comprises a shell (1) and a driving unit (2), and is characterized in that: still include alarm mechanism (3), reduction gears (4), alarm mechanism (3) fixed connection be in the inside both sides of casing (1), reduction gears (4) fixed connection be in the inside upper and lower both ends of casing (1).
2. A device for decelerating an electric vehicle after a prescribed speed has been exceeded according to claim 1, wherein: alarm mechanism (3) are including spring (31), spout (32), sliding block (33), ball (34), elastic frame (35), spread groove (36), spring (31) fixed connection be in the inner wall of casing (1), the inside swing joint of spout (32) has sliding block (33), the inner wall swing joint of sliding block (33) has ball (34), the inner wall of casing (1) just is close to spread groove (36) have been seted up in the outside of spout (32).
3. A device for decelerating an electric vehicle after a prescribed speed has been exceeded according to claim 2, wherein: alarm mechanism (3) still include closed coil (37), permanent magnet (38), photoelectric generator (39), the inner wall elastic connection of spread groove (36) has elastic frame (35), the inner wall fixedly connected with of elastic frame (35) closed coil (37), the inner wall fixedly connected with of spread groove (36) permanent magnet (38), the inner wall fixedly connected with of casing (1) photoelectric generator (39).
4. A device for decelerating an electric vehicle after a prescribed speed has been exceeded according to claim 1, wherein: reduction gears (4) include recess (41), electrode bar (42), electric heating piece (43), promote frame (44), seted up the inside of casing (1) recess (41), electrode bar (42) fixed connection be in recess (41) are close to the one end of casing (1) inner wall, electrode bar (42) are close to the one end fixedly connected with electric heating piece (43) of propelling movement frame (44).
5. A device for decelerating an electric vehicle after a prescribed speed has been exceeded according to claim 4, wherein: reduction gears (4) still include electric contact (45), conductor rail (46), electro-magnet (47), magnetic extension pole (48), piezo-resistor (49), the inner wall swing joint of propelling movement frame (44) has electric contact (45), the outside fixedly connected with of recess (41) conductor rail (46), the one end fixedly connected with that the recess (41) outside is close to conductor rail (46) electro-magnet (47), the one end fixedly connected with that the electro-magnet (47) outside is close to drive unit (2) magnetic extension pole (48), the inside fixedly connected with of drive unit (2) piezo-resistor (49).
6. A device for decelerating an electric vehicle after a prescribed speed has been exceeded according to claim 5, wherein: the closed coil (37) is electrically connected with the electrode rod (42), and the electrode rod (42) is electrically connected with the electric heating sheet (43).
7. A device for decelerating an electric vehicle after a prescribed speed has been exceeded according to claim 5, wherein: the structure of the electric contact (45) is a spherical structure, the electric contacts (45) are symmetrically distributed on two sides of the pushing frame (44), and the electric contacts (45) are electrically connected with the piezoresistor (49).
CN202111482590.2A 2021-12-07 2021-12-07 Electric vehicle speed reducer exceeding specified speed Pending CN114348151A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111482590.2A CN114348151A (en) 2021-12-07 2021-12-07 Electric vehicle speed reducer exceeding specified speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111482590.2A CN114348151A (en) 2021-12-07 2021-12-07 Electric vehicle speed reducer exceeding specified speed

Publications (1)

Publication Number Publication Date
CN114348151A true CN114348151A (en) 2022-04-15

Family

ID=81096970

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111482590.2A Pending CN114348151A (en) 2021-12-07 2021-12-07 Electric vehicle speed reducer exceeding specified speed

Country Status (1)

Country Link
CN (1) CN114348151A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115475739A (en) * 2022-10-21 2022-12-16 张家港市骏马钢帘线有限公司 Coating device for preventing cord from falling off groove and preventing wire passing part from being blocked and alarm method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203593078U (en) * 2013-12-12 2014-05-14 漆镭 Over-speed alarm of electric bicycle
CN112172982A (en) * 2020-10-19 2021-01-05 广州炫速贸易有限公司 Automatic speed reduction device for overspeed shared electric bicycle
CN112572666A (en) * 2020-12-03 2021-03-30 云和县鸿林玩具有限公司 Automatic child who slows down can take toy car stall protection device
CN112914302A (en) * 2021-04-06 2021-06-08 厦门时可就贸易有限公司 Baby walker with protection function for mother and baby articles
CN113060235A (en) * 2021-03-26 2021-07-02 杭州焦余网络科技有限公司 Bicycle stall braking device based on electromagnetic induction principle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203593078U (en) * 2013-12-12 2014-05-14 漆镭 Over-speed alarm of electric bicycle
CN112172982A (en) * 2020-10-19 2021-01-05 广州炫速贸易有限公司 Automatic speed reduction device for overspeed shared electric bicycle
CN112572666A (en) * 2020-12-03 2021-03-30 云和县鸿林玩具有限公司 Automatic child who slows down can take toy car stall protection device
CN113060235A (en) * 2021-03-26 2021-07-02 杭州焦余网络科技有限公司 Bicycle stall braking device based on electromagnetic induction principle
CN112914302A (en) * 2021-04-06 2021-06-08 厦门时可就贸易有限公司 Baby walker with protection function for mother and baby articles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115475739A (en) * 2022-10-21 2022-12-16 张家港市骏马钢帘线有限公司 Coating device for preventing cord from falling off groove and preventing wire passing part from being blocked and alarm method
CN115475739B (en) * 2022-10-21 2023-12-26 张家港市骏马钢帘线有限公司 Coating device for preventing cord from falling off groove and blocking wire passing component and alarming method

Similar Documents

Publication Publication Date Title
CN114348151A (en) Electric vehicle speed reducer exceeding specified speed
CN203460823U (en) Device for automatically closing door during starting of automobile
CN201646779U (en) Train approach intelligent early warning system
KR20070030302A (en) Energy recovery system
CN104742931A (en) Non-adhesion brake device used for high-speed train and control method of non-adhesion brake device
CN205187561U (en) Magnetcisuspension floating high -speed elevator
CN203172578U (en) Electromagnetic type tailgating preventing device
CN201545570U (en) Elevator speed limiting device
CN204323567U (en) A kind of electromagnetic induction bicycle capable of generating power
CN202727989U (en) Speed-limiting safety management device of automobile
CN102642528A (en) Electromagnetic rear-end collision preventing system
CN202896400U (en) Parking indicator controller of school bus
CN109664866B (en) Vehicle deceleration protection system
CN103280940A (en) Moving motor and electric vehicle
CN204472740U (en) A kind of automobile automatic anticollision device based on signal Real-time Feedback
CN201923059U (en) Bus escape window
CN112413019B (en) Car elevator operation traction structure
CN115027526A (en) Safety guiding device applied to rail transit system and guiding system thereof
CN103587464A (en) Warning system
CN205589216U (en) Electric motor car downhill path status signal generator
CN203691200U (en) Vehicle swing-vibration combined type generating set
CN210140552U (en) Inclination early warning device for coke tank of dry quenching coke
CN202119782U (en) Speed alarm device of magnetic induction type
CN213521267U (en) A circuit safeties that is used for car facility of charging to conveniently shift
CN205194615U (en) Inertia switch and emergency brake reminding device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination