CN113005941A - Robot intelligent automobile accident warning device - Google Patents

Robot intelligent automobile accident warning device Download PDF

Info

Publication number
CN113005941A
CN113005941A CN202110234753.9A CN202110234753A CN113005941A CN 113005941 A CN113005941 A CN 113005941A CN 202110234753 A CN202110234753 A CN 202110234753A CN 113005941 A CN113005941 A CN 113005941A
Authority
CN
China
Prior art keywords
support arm
self
automobile body
balancing
driving
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
CN202110234753.9A
Other languages
Chinese (zh)
Inventor
石天添
石崇源
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.)
Nanjing Leizhi Electronic Technology Co ltd
Original Assignee
Nanjing Leizhi Electronic Technology 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 Nanjing Leizhi Electronic Technology Co ltd filed Critical Nanjing Leizhi Electronic Technology Co ltd
Priority to CN202110234753.9A priority Critical patent/CN113005941A/en
Publication of CN113005941A publication Critical patent/CN113005941A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/688Free-standing bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q7/00Arrangement or adaptation of portable emergency signal devices on vehicles
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/604Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/615Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
    • E01F9/617Illuminated or wired-up posts, bollards, pillars or like upstanding bodies or structures for traffic guidance, warning or control
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/623Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/646Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection extensible, collapsible or pivotable

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

The invention provides a robot intelligent automobile accident warning device, which comprises a self-balancing automobile body, a first support arm and a second support arm, wherein transmission mechanisms for driving the self-balancing automobile body to move are arranged at two ends of the self-balancing automobile body, a navigation sensor and a three-axis acceleration sensor are arranged on the self-balancing automobile body, a controller is arranged in the self-balancing automobile body and is respectively connected with the navigation sensor and the three-axis acceleration sensor, the second support arm is movably connected with the first support arm capable of rotating along the self-balancing automobile body, and a third support arm for supporting and placing the self-balancing automobile body.

Description

Robot intelligent automobile accident warning device
Technical Field
The invention relates to the technical field of automobile accident warning equipment, in particular to a robot intelligent automobile accident warning device.
Background
The automobile accident warning device is a mark for warning vehicles and pedestrians to pay attention to dangerous places, the color of the warning mark is yellow bottom, black side and black pattern, the warning mark is in the shape of an equilateral triangle, the vertex angle is upward, and after a driver sees the warning mark, the driver needs to pay attention to the warning mark, carefully drive, slow down and walk.
The warning devices are manually placed in the prior art, the warning devices are required to be manually placed at a distance required by a traffic management department after an accident happens, and are very dangerous, meanwhile, a placing person needs to estimate the placement position of the warning devices so as to meet the placement requirements of the traffic management department on the warning devices, and the warning distances are inconvenient to measure and place, so that the invention provides the robot intelligent automobile accident warning device.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a robot intelligent automobile accident warning device.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides an intelligent car accident warning device of robot, includes position self-balancing automobile body, first support arm and second support arm, the drive mechanism who is used for driving its removal is installed at position self-balancing automobile body both ends, installs navigation sensor, triaxial acceleration sensor on the position self-balancing automobile body, and internally mounted has the controller, the controller links to each other with navigation sensor, triaxial acceleration sensor respectively, and second support arm swing joint has can follow self-balancing automobile body pivoted first support arm, installs on the position self-balancing automobile body to be used for it to support the third support arm of placing.
Further, drive mechanism includes left drive assembly and right drive assembly, and left drive assembly includes left wheel driver, left wheel motor and left drive wheel, and left wheel motor is installed to self-balancing automobile body one end, installs left drive wheel on the left wheel motor, and the left wheel motor passes through the left wheel driver and links to each other with the controller.
Further, right transmission assembly includes right wheel driver, right wheel motor and right drive wheel, and left wheel motor one end is kept away from to the self-balancing automobile body and right wheel motor is installed, installs right drive wheel on the right wheel motor, and right wheel motor passes through right wheel driver and links to each other with the controller.
Furthermore, a driving track is arranged inside the self-balancing vehicle body, a driving assembly is installed on the driving track, a sliding block which can slide along the driving track is installed at one end, close to the driving track, of the second support arm, the first support arm is connected with the second support arm through a connecting shaft, and the second support arm is connected with the self-balancing vehicle body through a driven shaft.
Furthermore, the driving assembly comprises a linear motor and an adjusting shaft, the linear motor is installed on the in-place self-balancing vehicle body through the adjusting shaft, and the linear motor is connected with the sliding block.
Further, the linear motor is connected with the controller.
Further, drive assembly includes driving motor, belt pulley and driving belt, and the belt pulley is all installed at the drive track both ends, and one end belt pulley links to each other with the driving motor of installing on the self-balancing automobile body, is equipped with driving belt between the belt pulley.
Furthermore, the transmission motor is electrically connected with a controller.
Further, still include wireless module and battery, controller electric connection has wireless module and battery.
Further, install rotating assembly between third support arm and the self-balancing automobile body, rotating assembly includes relay and torsional spring, the third support arm is L type structure, rotates through the activity post with the self-balancing automobile body and is connected, installs the torsional spring between third support arm and the activity post, and third support arm minor face one side is provided with the relay of installing in the self-balancing automobile body.
Furthermore, one corner of the relay, which is close to the third support arm contact, is set to be inclined, and the relay is connected with the controller.
Furthermore, the first support arm and the second support arm are LED display warning color arms.
Furthermore, the driving rail is of an arc-shaped structure, and the included angle between the driving rail and the horizontal plane is 60 degrees.
Further, the driving track is a circular arc subtended by an angle of 60 °.
Furthermore, the first support arm and the second support arm are provided with light-reflecting soft boards or LED lamp boards.
Compared with the prior art, the invention has the beneficial effects that:
1. the distance between the vehicle and the accident vehicle is rapidly determined through the navigation sensor and the three-axis acceleration sensor, rapid positioning is carried out, positioning time is saved, and positioning accuracy is improved;
2. according to the invention, the self-balancing vehicle body is moved to a proper position through the left transmission assembly and the right transmission assembly, the warning device automatically moves to a distance specified by a traffic management department, warning is started, and the warning ending device automatically returns to the vicinity of a user, so that the placing time is saved, manual placing is avoided, and the safety is improved;
3. the invention adopts the wireless module to carry out wireless connection and remote control, and after the use is finished, the wireless module is automatically retracted and returns to the original position.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:
fig. 1 is a schematic diagram illustrating an internal front view of a robotic intelligent vehicle accident warning device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a robot intelligent automobile accident warning device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a robotic intelligent vehicle accident warning device according to an embodiment of the present invention when deployed;
FIG. 4 is a schematic diagram illustrating a control principle of a robotic intelligent vehicle accident warning device according to an embodiment of the present invention;
reference numbers in the figures: 1-second support arm, 2-connecting shaft, 3-driven shaft, 4-left driving wheel, 5-position self-balancing vehicle body, 6-driving track, 7-right driving wheel, 8-sliding block, 9-first support arm and 10-third support arm.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
An embodiment according to the present invention is shown in conjunction with fig. 1-4. The utility model provides an intelligent car accident warning device of robot, including position self-balancing automobile body 5, first support arm 9 and second support arm 1, the drive mechanism who is used for driving its removal is installed at position self-balancing automobile body 5 both ends, install navigation sensor on the position self-balancing automobile body 5, three-axis acceleration sensor, internally mounted has the controller, the controller respectively with navigation sensor, three-axis acceleration sensor links to each other, 1 swing joint of second support arm has can follow self-balancing automobile body pivoted first support arm 9, install on the position self-balancing automobile body 5 and be used for it to support third support arm 10 of placing, an intelligent car accident warning device of robot, still include wireless module and battery, controller electric connection has wireless module and battery.
The transmission mechanism comprises a left transmission assembly and a right transmission assembly, the left transmission assembly comprises a left wheel driver, a left wheel motor and a left driving wheel 4, one end of the self-balancing vehicle body is provided with the left wheel motor, the left wheel motor is provided with the left driving wheel 4, the left wheel motor is connected with the controller through the left wheel driver, the controller controls the left wheel motor to rotate through the left wheel driver, the left wheel motor drives the left driving wheel 4 to move to adjust and move the left driving wheel 4, the right transmission assembly comprises a right wheel driver, right wheel motor and right drive wheel 7, left wheel motor one end is kept away from to the self-balancing automobile body and right wheel motor is installed, installs right drive wheel 7 on the right wheel motor, and right wheel motor links to each other with the controller through right wheel driver, and the controller passes through right wheel driver control right wheel motor and rotates, and right wheel motor drives right drive wheel 7 and removes, carries out the regulation removal of right drive wheel 7.
Self-balancing automobile body is inside to be provided with drive track 6, install drive assembly on the drive track 6, second support arm 1 is close to drive track 6 one end and installs and to follow the gliding slider 8 of drive track 6, connecting axle 2 links to each other between first support arm 9 and the second support arm 1, second support arm 1 links to each other with position self-balancing automobile body 5 through driven shaft 3, make things convenient for slider 8 to slide through the drive slide rail, make things convenient for first support arm 9 and second support arm 1 to receive and release through connecting axle 2 and driven shaft 3.
Drive assembly includes linear electric motor and regulating spindle, linear electric motor passes through the regulating spindle and installs in position self-balancing automobile body 5, linear electric motor links to each other with slider 8, linear electric motor circular telegram work promotes slider 8 and slides along drive track 6, and then drive second support arm 1, first support arm 9 receive and releases, linear electric motor links to each other with the controller, carry out the switching through controller control linear electric motor, first support arm 9 and second support arm 1 show warning color arm for LED, warning color arm warns pedestrian and vehicle coming and going, drive track 6 is the arc structure, drive track 6 is 60 with the contained angle of horizontal plane, slide rail through 60 arcs, the change of arm length has been avoided.
The controller model: KY 02S.
The drive assembly includes driving motor, belt pulley and driving belt, the belt pulley is all installed at 6 both ends of drive track, one end belt pulley links to each other with the driving motor who installs on the self-balancing automobile body, be equipped with driving belt between the belt pulley, driving motor electric connection has the controller, when using, driving motor drives the belt pulley and rotates, the belt pulley rotates and drives slider 8 through driving belt and slide along drive track 6, and then receive and release first support arm 9 and second support arm 1.
Install rotating assembly between third support arm 10 and the self-balancing automobile body, rotating assembly includes relay and torsional spring, third support arm 10 is L type structure, it is connected to rotate through the activity post with the self-balancing automobile body, install the torsional spring between third support arm 10 and the activity post, third support arm 10 minor face one side is provided with the relay of installing in the self-balancing automobile body, the relay is close to third support arm 10 contact one corner and sets up to the slope form, the relay links to each other with the controller, through controller control relay break-make, make its contact pop out, produce elasticity to third support arm 10, carry out 90 rotations, first support arm 9 is installed reflection of light soft tablet or LED lamp tablet with second support arm 1, when taking place the accident, warn, remind the coming and going vehicle to notice the place ahead car accident.
Implement 1, when having taken place the traffic accident in the high speed, the user puts position self-balancing automobile body 5 on subaerial, confirms the distance with the accident car through triaxial acceleration sensor and navigation sensor, and at this moment, second support arm 1 and first support arm 9 slide in drive track 6 and lie to put to passive axle 3 department, and the controller control left wheel motor and right wheel motor carry out work, through controlling two motor drive left drive wheel 4 and right drive wheel 7, move to the assigned position.
When the self-balancing vehicle body reaches a specified position, the controller controls the linear motor to be powered on, the sliding block 8 is pushed to slide along the driving track 6, the second support arm 1 slides along the driving track 6 to leave the driven shaft 3 and slides to the other end far away from the driven shaft 3, after the second support arm 1 slides in place along the driving track 6, the controller controls the relay to be powered on, the relay is electrically shocked and popped out, the third support arm 10 is pushed to rotate along the movable column, the third support arm 10 is opened, the self-balancing vehicle body 5 is stably supported through the third support arm 10, the device is in a warning state, after warning is finished, the three support arms of the device are restored to the initial state, and the self-balancing vehicle.
Implement 2, when having taken place the traffic accident in the high speed, the user puts position self-balancing automobile body 5 on subaerial, confirms the distance with the accident car through triaxial acceleration sensor and navigation sensor, and at this moment, second support arm 1 and first support arm 9 slide in drive track 6 and lie to put to passive axle 3 department, and the controller control left wheel motor and right wheel motor carry out work, through controlling two motor drive left drive wheel 4 and right drive wheel 7, move to the assigned position.
When the self-balancing vehicle body reaches a specified position, the controller controls the transmission motor to be powered on, the transmission motor drives the belt pulley to rotate, the belt pulley rotates to drive the sliding block 8 to slide along the driving track 6 through the transmission belt, the second support arm 1 slides to the other end along the driving track 6, the controller controls the relay to be powered on after the second support arm 1 slides in place along the driving track 6, the relay is electrically shocked and popped out, the third support arm 10 is pushed to rotate along the movable column, the third support arm 10 is opened, the self-balancing vehicle body 5 is stably supported through the third support arm 10, the device is in a warning state, after warning is finished, the three support arms of the device recover to the initial state, and the self-balancing vehicle.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.

Claims (10)

1. The utility model provides an intelligent automobile accident warning device of robot, its characterized in that, including position self-balancing automobile body (5), first support arm (9) and second support arm (1), the drive mechanism who is used for driving its removal is installed at position self-balancing automobile body (5) both ends, installs navigation sensor, triaxial acceleration sensor on position self-balancing automobile body (5), and internally mounted has the controller, the controller links to each other with navigation sensor, triaxial acceleration sensor respectively, and second support arm (1) swing joint has and can follow self-balancing automobile body pivoted first support arm (9), installs on position self-balancing automobile body (5) and is used for it to support third support arm (10) of placing.
2. The robot intelligent automobile accident warning device of claim 1, wherein the transmission mechanism comprises a left transmission assembly and a right transmission assembly, the left transmission assembly comprises a left wheel driver, a left wheel motor and a left driving wheel (4), the left wheel motor is installed at one end of the self-balancing automobile body, the left driving wheel (4) is installed on the left wheel motor, and the left wheel motor is connected with the controller through the left wheel driver.
3. The robot intelligent automobile accident warning device of claim 2, wherein the right transmission assembly comprises a right wheel driver, a right wheel motor and a right driving wheel (7), the end of the self-balancing automobile body, which is far away from the left wheel motor, is provided with the right wheel motor, the right wheel motor is provided with the right driving wheel (7), and the right wheel motor is connected with the controller through the right wheel driver.
4. The robot intelligent automobile accident warning device of claim 1, wherein a driving rail (6) is arranged inside the self-balancing automobile body, a driving assembly is installed on the driving rail (6), a sliding block (8) which can slide along the driving rail (6) is installed at one end, close to the driving rail (6), of the second support arm (1), the first support arm (9) is connected with the second support arm (1) through a connecting shaft (2), and the second support arm (1) is connected with the self-balancing automobile body (5) through a driven shaft (3).
5. A robot intelligent automobile accident warning device according to claim 4, characterized in that the driving assembly comprises a linear motor and an adjusting shaft, the linear motor is installed on the self-balancing automobile body (5) through the adjusting shaft, and the linear motor is connected with the sliding block (8).
6. The robot intelligent automobile accident warning device of claim 4, wherein the driving assembly comprises a transmission motor, belt pulleys and a transmission belt, the belt pulleys are installed at two ends of the driving rail (6), the belt pulley at one end is connected with the transmission motor installed on the self-balancing automobile body, and the transmission belt is assembled between the belt pulleys.
7. The robotic smart car accident warning device of claim 1, further comprising a wireless module and a battery, wherein the controller is electrically connected to the wireless module and the battery.
8. The robot intelligent automobile accident warning device of claim 1, characterized in that a rotating assembly is installed between the third support arm (10) and the self-balancing automobile body, the rotating assembly comprises a relay and a torsion spring, the third support arm (10) is of an L-shaped structure and is rotatably connected with the self-balancing automobile body through a movable column, the torsion spring is installed between the third support arm (10) and the movable column, and the relay installed in the self-balancing automobile body is arranged on one side of the short side of the third support arm (10).
9. The robotic smart car accident warning device of claim 1, wherein the first arm (9) and the second arm (1) are LED display warning colored arms.
10. The robot intelligent automobile accident warning device according to claim 4, characterized in that the driving rail (6) is of an arc structure, and the included angle between the driving rail (6) and the horizontal plane is 60 degrees.
CN202110234753.9A 2021-03-03 2021-03-03 Robot intelligent automobile accident warning device Pending CN113005941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110234753.9A CN113005941A (en) 2021-03-03 2021-03-03 Robot intelligent automobile accident warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110234753.9A CN113005941A (en) 2021-03-03 2021-03-03 Robot intelligent automobile accident warning device

Publications (1)

Publication Number Publication Date
CN113005941A true CN113005941A (en) 2021-06-22

Family

ID=76403682

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110234753.9A Pending CN113005941A (en) 2021-03-03 2021-03-03 Robot intelligent automobile accident warning device

Country Status (1)

Country Link
CN (1) CN113005941A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1028028A2 (en) * 1999-02-12 2000-08-16 Leina-Werke GmbH Foldable warning triangle
KR101807425B1 (en) * 2016-09-12 2018-01-18 박옥연 Traffic triangle apparatus
CN207389043U (en) * 2017-05-27 2018-05-22 徐大鹏 A kind of triangular warning board apparatus and control system
CN108454511A (en) * 2018-06-04 2018-08-28 佛山市慧田自动化设备有限公司 Intelligent automobile Warning frame
CN108638962A (en) * 2018-05-31 2018-10-12 李夫 Intelligent distant control warning triangles rack device
CN208615806U (en) * 2018-03-29 2019-03-19 上海小伞信息科技有限公司 Electronic Triangular warning sign
CN209191789U (en) * 2018-11-27 2019-08-02 广州得意设计有限公司 A kind of vehicle fault warning board
CN111361500A (en) * 2020-04-01 2020-07-03 黄山学院 Automobile fault warning device based on wireless communication

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1028028A2 (en) * 1999-02-12 2000-08-16 Leina-Werke GmbH Foldable warning triangle
KR101807425B1 (en) * 2016-09-12 2018-01-18 박옥연 Traffic triangle apparatus
CN207389043U (en) * 2017-05-27 2018-05-22 徐大鹏 A kind of triangular warning board apparatus and control system
CN208615806U (en) * 2018-03-29 2019-03-19 上海小伞信息科技有限公司 Electronic Triangular warning sign
CN108638962A (en) * 2018-05-31 2018-10-12 李夫 Intelligent distant control warning triangles rack device
CN108454511A (en) * 2018-06-04 2018-08-28 佛山市慧田自动化设备有限公司 Intelligent automobile Warning frame
CN209191789U (en) * 2018-11-27 2019-08-02 广州得意设计有限公司 A kind of vehicle fault warning board
CN111361500A (en) * 2020-04-01 2020-07-03 黄山学院 Automobile fault warning device based on wireless communication

Similar Documents

Publication Publication Date Title
US9365987B2 (en) Portable remote-controlled traffic and pedestrian control system
CN107009957A (en) A kind of automobile-used movable formula triangle warning plate
JP6503402B2 (en) Track type moving device
CN201587464U (en) Mechanical device for climbing lamp post
KR20120046518A (en) Remote control warning triangle
CN207860058U (en) A kind of two-way alarming triangle of vehicle intelligent
CN112161816A (en) Small active driving platform for loading dummy target
CN113005941A (en) Robot intelligent automobile accident warning device
CN105059361A (en) Steering wheel assembly and automobile
WO2021139125A1 (en) Wireless charging automatic alignment system
CN211493841U (en) Primary and secondary vehicle type automatic warning sign and automobile
CN211592387U (en) Automobile tripod warning board capable of being moved remotely
CN204875587U (en) Intelligence warning sign
CN108582090B (en) Monitoring robot moving on highway guardrail
CN218523230U (en) Pipeline inspection robot
CN214647989U (en) Multifunctional storage box for vehicle
CN211285378U (en) Controllable height-limiting frame structure for municipal highway
CN213800226U (en) Mobile robot trolley with foldable parking apron
CN107672517A (en) A kind of mobile warning sign
KR200414202Y1 (en) Warning lamps equipped with electric searchlights
CN102705766A (en) Sight synchronizing lamp
CN109653555B (en) Anticollision double-layer three-dimensional parking equipment
US20020162992A1 (en) Electrically operable vehicle jacks
CN221216947U (en) Automobile tire bridge type traction winch device
CN219769748U (en) Triangular warning board for vehicle

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20210622

RJ01 Rejection of invention patent application after publication