CN108974062B - Safety protection dolly - Google Patents
Safety protection dolly Download PDFInfo
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- CN108974062B CN108974062B CN201810715890.2A CN201810715890A CN108974062B CN 108974062 B CN108974062 B CN 108974062B CN 201810715890 A CN201810715890 A CN 201810715890A CN 108974062 B CN108974062 B CN 108974062B
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- 238000010276 construction Methods 0.000 claims abstract description 32
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- 238000005259 measurement Methods 0.000 abstract description 6
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- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
- E01F9/662—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing mounted on vehicles, e.g. service vehicles; Warning vehicles travelling along with road-maintenance, e.g. remotely controlled
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
- G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing light
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
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- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Signal Processing (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a safety protection trolley which comprises a trolley body, a single chip microcomputer arranged on the trolley body, a power supply, an infrared sensor, a Bluetooth adapter, a positioning device, an LED warning lamp, a visual identification device, a vehicle data recorder, a radar velocimeter, a remote controller and a Bluetooth earphone, wherein the power supply, the infrared sensor, the Bluetooth adapter, the positioning device, the LED warning lamp, the visual identification device, the vehicle data recorder and the radar velocimeter are connected with the single chip microcomputer. Compared with the prior art, the distance between the trolley and the road maintenance maintainer is realized by adopting an identification technology and an infrared sensing technology through singlechip programming, the automatic turning control is realized by utilizing infrared distance measurement, the radar speed measurement detects the transverse position and the speed of the rear vehicle, and when the transverse position of the rear vehicle and the front road construction maintainer exceed the safe distance or the rear vehicle is overspeed, the Bluetooth communication device reminds the front road construction maintainer that the rear vehicle is abnormally driven to pay attention to quick avoidance.
Description
Technical Field
The invention relates to the technical field of personal safety protection of road maintenance constructors, in particular to a safety protection trolley.
Background
With the rapid development of the automobile industry and the higher and higher living level of people, more and more urban motor vehicles are available. The number of cars increases and the rapid development of economy brings with it many problems. Among them, traffic safety accidents are the most prominent. And belongs to the construction maintenance personnel working on the road all day long with the largest traffic safety risk.
Major traffic accidents often occur when road construction maintenance personnel work on roads such as a rapid trunk road, a viaduct, an expressway and the like, and great loss is brought to families and society. The vehicles coming and going on the road are numerous, and constructors have great potential safety hazards and are particularly positioned in the field-of-view blind areas of drivers at road turning places and the like.
Meanwhile, equipment specially applied to guarantee the safety of road construction maintenance personnel is rare, and the fixed warning board is arranged to prompt a vehicle behind to notice to avoid.
The disadvantages of the prior art are summarized as follows:
1. at present, a fixed safety protection device is applied more and cannot be changed along with the change of the position of a worker.
2. The existing part of safety protection devices adopts an infrared sensing technology, but the requirements on the environment are higher, an infrared sensor does not react to a black object, and the safety protection device can possibly collect an error signal, so that an electric control system of the safety protection device can send out an error instruction, and further the safety protection device can execute an error action, so that the safety protection effect cannot be achieved.
3. Some safety protection devices cannot detect the speed of a driving vehicle, cannot detect the accurate position of road workers in real time and provide specific avoidance measures for the road workers for reference, or the detection devices are not sensitive enough in response, and the prompt information is transmitted to the workers when the prompt information misses the best avoidance opportunity.
3. The safety protection equipment is large in size, not flexible enough to move, and inconvenient for workers to carry when going out.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provide a safety protection trolley.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
a safety protection trolley comprises a trolley body, a single chip microcomputer arranged on the trolley body, a power supply, an infrared sensor, a Bluetooth adapter, a positioning device, an LED warning lamp, a visual identification device, a vehicle data recorder, a radar velocimeter, a remote controller and a Bluetooth headset, wherein the power supply, the infrared sensor, the Bluetooth adapter, the positioning device, the LED warning lamp, the visual identification device, the vehicle data recorder and the radar velocimeter are connected with the single chip microcomputer; wherein:
the power supply is used for supplying power;
the infrared sensor is arranged behind the trolley body and used for identifying reflected infrared rays, converting the reflected infrared rays into electric signals and inputting the electric signals into the single chip microcomputer, and the single chip microcomputer can calculate the distance according to the time from the sending to the receiving of the infrared rays and the transmission speed of the infrared rays so as to determine the position of a vehicle behind;
the positioning device is used for positioning the position of the trolley body and sending the position to the single chip microcomputer;
the visual recognition device is used for recognizing work clothes on a road construction maintenance person, converting the work clothes into electric signals and then sending the electric signals to the single chip microcomputer, and the electric signals are processed and calculated by the single chip microcomputer and then drive the trolley body to act so as to follow the action of the road construction maintenance person;
the automobile data recorder is used for recording the running condition of the trolley body and sending the running condition to the single chip microcomputer for storage;
the radar speed measuring instrument is used for detecting the transverse position and the speed of a rear vehicle and sending the transverse position and the speed to the single chip microcomputer, after the transverse position of the rear vehicle and a front road construction maintainer exceed a safe distance or the rear vehicle exceeds a speed limit after the transverse position and the front road construction maintainer are processed by the single chip microcomputer, an alarm is sent out through the single chip microcomputer, and meanwhile a signal is sent to the automobile data recorder to photograph and record the overspeed vehicle;
the LED warning lamp is arranged at the top of the trolley body and used for prompting vehicles coming and going to pay attention to deceleration and avoidance;
the Bluetooth adapter is used for connecting the singlechip with the remote controller and the Bluetooth headset for communication;
the remote controller is used for sending a command for controlling the action of the trolley to the single chip microcomputer through the Bluetooth adapter;
the Bluetooth headset is used for receiving an alarm signal sent by the single chip microcomputer.
The technical scheme is that the trolley body comprises a large gear, a small gear, supports, front wheels, rear wheels, a bottom plate, a steering block, a steering shifting fork, a front axle, a front shaft, a rear shaft, a steering connecting shaft, a power motor and a steering motor, wherein the supports are fixed at the rear end of the lower end face of the bottom plate, the rear wheels are installed at two ends of the rear shaft after penetrating through shaft holes in the two supports, the small gear is axially fixed on the rear shaft, the power motor is fixed on the bottom plate, the large gear is axially fixed on an output shaft of the power motor, and the large gear is meshed with the small gear; the front end of terminal surface under the bottom plate is fixed to the front axle, turn to the piece for two and turn to the both ends of piece hinge connection front axle, turn to the both ends hinge connection of connecting axle between two pieces that turn to, turn to motor vertical fixation on the bottom plate, the output shaft tip that turns to the motor extends to terminal surface under the bottom plate and with turn to the up end vertical connection of shift fork one end, turn to the shift fork other end and the middle part fixed connection who turns to the connecting axle, the front axle is two and fixes in the outside that two turned to the piece, and the front wheel is installed at the front axle tip.
The technical scheme is that the power motor and the steering motor are respectively connected with the single chip microcomputer, the single chip microcomputer controls the power motor to drive the trolley body to advance, the visual recognition device recognizes the work clothes on the road construction maintainer and converts the work clothes into electric signals, the electric signals are sent to the single chip microcomputer, the electric signals are processed and calculated by the single chip microcomputer and then send control signals to the steering motor, and when the positioning position of the road construction maintainer is changed, the input signals change the steering motor to steer so as to change the travelling direction of the trolley.
A further technical scheme is that an oval through hole is formed in one end of the steering shifting fork, and the end portion of an output shaft of the steering motor extends into the oval through hole.
A further technical scheme is that a warning lamp supporting rod is vertically installed on the upper end face of the bottom plate through a fixing seat.
The further technical scheme is that the power motor is a direct current motor, and the steering motor is a servo motor.
Compared with the prior art, the distance between the trolley and the road maintenance maintainer is realized by adopting an identification technology and an infrared sensing technology through singlechip programming, the automatic turning control is realized by utilizing infrared distance measurement, the radar speed measurement detects the transverse position and the speed of the rear vehicle, and when the transverse position of the rear vehicle and the front road construction maintainer exceed the safe distance or the rear vehicle is overspeed, the Bluetooth communication device reminds the front road construction maintainer that the rear vehicle is abnormally driven to pay attention to quick avoidance. The overspeed vehicle is photographed and recorded through a vehicle traveling recorder, and the rear vehicle is reminded of paying attention to the front person by using methods such as red LED warning lamp flashing and the like, and then the vehicle is reminded of slowing down and avoiding. The device has small volume, about 300 mm to 80 mm to 600 mm, and weight of about 2kg, and is convenient to carry and low in manufacturing cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a rear view of the present invention.
Fig. 3 is a left side view of the present invention.
Fig. 4 is a connection structure view of the front axle and the steering connecting shaft of the present invention.
Fig. 5 is a sectional view a-a of fig. 3.
Fig. 6 is a block diagram of a circuit structure of the safety protection trolley of the invention.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1-6, the safety protection trolley of the embodiment comprises a trolley body, a single chip microcomputer arranged on the trolley body, a power supply connected with the single chip microcomputer, an infrared sensor, a bluetooth adapter, a positioning device, an LED warning lamp, a visual identification device, a driving recorder, a radar velocimeter, a remote controller and a bluetooth headset worn by a user; wherein:
the power supply is used for supplying power, the power supply comprises a 5V power supply and a 12V power supply, the 12V power supply provides power for the power motor to realize the forward movement of the trolley, and the 5V power supply is used for supplying power for the singlechip and providing steering power for the steering motor;
the infrared sensor is arranged behind the trolley body and used for identifying reflected infrared rays, converting the reflected infrared rays into electric signals and inputting the electric signals into the single chip microcomputer, and the single chip microcomputer can calculate the distance according to the time from the sending to the receiving of the infrared rays and the transmission speed of the infrared rays so as to determine the position of a vehicle behind;
the positioning device is used for positioning the position of the trolley body and sending the position to the single chip microcomputer;
the visual recognition device is used for recognizing specific work clothes on the road construction maintainer and converting the work clothes into electric signals, and then the electric signals are sent to the single chip microcomputer, and the electric signals are processed and calculated by the single chip microcomputer and then drive the trolley body to act so as to follow the action of the road construction maintainer;
the automobile data recorder is used for recording the running condition of the trolley body and sending the running condition to the single chip microcomputer for storage;
the radar speed measuring instrument is used for detecting the transverse position and the speed of a rear vehicle and sending the transverse position and the speed to the single chip microcomputer, after the transverse position of the rear vehicle and a front road construction maintainer exceed a safe distance or the rear vehicle exceeds a speed limit after the transverse position and the front road construction maintainer are processed by the single chip microcomputer, an alarm is sent out through the single chip microcomputer, and meanwhile a signal is sent to the automobile data recorder to photograph and record the overspeed vehicle;
the LED warning lamp is arranged at the top of the trolley body and used for prompting vehicles coming and going to pay attention to deceleration and avoidance;
the Bluetooth adapter is used for connecting the singlechip with the remote controller and the Bluetooth headset for communication;
the remote controller is used for sending a command for controlling the action of the trolley to the single chip microcomputer through the Bluetooth adapter;
the Bluetooth headset is used for receiving an alarm signal sent by the single chip microcomputer, and is shown in figure 6, wherein the radar velocimeter, the visual recognition device and the infrared sensor form a detection system of the trolley; the singlechip is used as a control system; the power motor and the steering motor are used as a power system of the trolley; the automobile data recorder and the positioning device are used as a monitoring system of the trolley.
The further technical scheme is that the trolley body comprises a large gear 1, a small gear 3, supports 17, front wheels 16, rear wheels 9, a bottom plate 6, a steering block 8, a steering shifting fork 13, a front axle 7, a front shaft 4, a rear shaft 18, a steering connecting shaft 15, a power motor 5 and a steering motor 12, wherein the supports 17 are fixed at the rear end of the lower end face of the bottom plate 6, the rear wheels 9 are installed at the two ends of the rear shaft 18 after penetrating through shaft holes in the two supports 17, the small gear 3 is axially fixed on the rear shaft 18, the power motor 5 is fixed on the bottom plate 6, the large gear 1 is axially fixed on an output shaft of the power motor 5, and the large gear 1 is meshed with the small gear 3; front axle 7 fixes the front end of terminal surface under bottom plate 6, turn to piece 8 for two and two to turn to 8 hinged joint front axle 7's of piece both ends, turn to the both ends hinged joint of connecting axle 15 between two turning to pieces 8, turn to motor 12 vertical fixation on bottom plate 6, the output shaft tip that turns to motor 12 extends to bottom plate 6 down the terminal surface and with turn to the up end vertical connection of shift fork 13 one end, turn to the shift fork 13 other end through pin 14 with turn to the middle part fixed connection of connecting axle 15, front axle 4 is two and fixes in two outsides that turn to piece 8, and front wheel 16 installs at the 4 tip of front axle. Wherein the power motor 5 adopts a 12v direct current motor to provide forward power for the whole trolley, and the steering motor 12 adopts a 5v private electric motor to provide steering power for the whole trolley.
Wherein, the bottom plate 6 of dolly body uses 5mm thick ya keli board as the material, and the ya keli board has better transparency, and the luminousness reaches 92%, and the transparent plate is clear transparent like quartzy, is 200 times of glass product, has almost not cracked danger. The acrylic plate has excellent weather resistance and chemical stability, is particularly applied outdoors, has strong adaptability to natural environment, can not change the performance even under the irradiation of sunlight and wind, rain and rain for a long time, and has good ageing resistance; the service life of the glass is as long as 5-8 years. At the same time, has flame resistance, i.e. does not spontaneously ignite and can be self-extinguished. And has good surface hardness and gloss, high processing plasticity, and can be made into various required shapes and products. And processing the bottom plate of the trolley main body in a laser cutting mode.
The front axle 7 and the support 17 are made of PLA materials, so that the plastic is high, the processing and the manufacturing are easy, the hardness is moderate, the tensile strength and the extensibility are good, and the environment is not polluted.
In this embodiment, the power motor 5 and the steering motor 12 are respectively connected with the single chip microcomputer, the single chip microcomputer controls the power motor to drive the trolley body to advance, the visual recognition device recognizes a work clothes on a road construction maintenance person and converts the work clothes into electric signals, the electric signals are sent to the single chip microcomputer, the electric signals are processed and calculated by the single chip microcomputer and then send control signals to the steering motor, and when the positioning position of the road construction maintenance person is changed, the input signals change the steering direction of the steering motor, so that the travelling direction of the trolley is changed. The car adopts a singlechip to program for control system design, an infrared distance detection device and a radar velocimeter are used as input signals, and a Bluetooth headset is used as output. When the infrared distance detection device senses that the rear vehicle exceeds the safe distance or the rear vehicle exceeds the speed limit, the Bluetooth headset sends out a warning prompt. The position of the specific work clothes on the road construction maintainer body identified by the machine vision identification device is used as an input signal, and a 5V servo motor is used as an output signal. When the positioning position of the worker is changed, the input signal changes the steering of the output 5V servo motor so as to change the driving direction of the trolley.
In this embodiment, an oval through hole 131 is opened to the one end of the steering fork 13, and the end of the output shaft of the steering motor 12 extends into the oval through hole 131.
In this embodiment, the warning light support rod 10 is vertically installed on the upper end surface of the bottom plate 6 through the fixing seat 11. The rear vehicle can be reminded by the twinkling of red LED warning light through the installation on warning light bracing piece 10, and someone in the place ahead slows down and walks slowly, notices to dodge. The LED warning lamp is used for transmitting corresponding operation to people by displaying different colors of the lamp in the environments of mechanical equipment, roads, wharfs and the like. For example, when the red light stops, the green light goes. The indicating device selects the LED red warning lamp, the LED red warning lamp generates less heat compared with a traditional light source, the service life of the LED red warning lamp is longer than that of a traditional bulb, the LED power of 1 watt can replace eight watts of the bulb, and the LED red warning lamp saves more energy in the using process.
The further technical scheme is that the power motor is a direct current motor, and the steering motor is a servo motor
The invention takes a trolley body as a model, uses a 12V motor as power to realize the forward movement of the trolley, uses a 5V servo motor as steering power, uses infrared rays to detect obstacles, and sends out instructions through the programming of a singlechip to control the automatic steering of the trolley. The road construction maintainer carries a signal generator, the trolley is provided with a signal receiver, and the distance between the trolley and the staff is controlled by sending an instruction through the programming of the single chip microcomputer. When a vehicle passes through the rear part, the distance measurement by utilizing infrared rays and the speed measurement by a radar can be realized, and when the transverse position of the vehicle at the rear part and the front road construction maintainer exceed the safety distance or the rear vehicle exceeds the speed, the trolley gives an alarm to remind the staff to notice and avoid. The overspeed vehicle is photographed and recorded through the automobile data recorder, and the red LED lamp is mounted on the trolley to remind a rear vehicle to pay attention to road cleaning and maintenance personnel in front, so that the overspeed vehicle decelerates and crawls.
The device identifies the specific work clothes on the body of a road construction maintainer through the visual identification device, and the work clothes are detected by the visual identification device carried by the trolley and converted into electric signals. The electric signal is processed and calculated by the singlechip and then output to the servo motor to start the trolley to move forward to follow the action of road construction maintenance personnel. And detects obstacles by infrared induction. The infrared recognition device recognizes the reflected infrared rays and converts the infrared rays into electric signals to be input into the single chip microcomputer to be processed and calculated according to the deflection direction and the deflection angle of the steering engine. The obstacle avoidance is carried out by matching with the travelling motion of the trolley. The infrared sensor behind the trolley can calculate the distance to determine the position of a vehicle behind according to the time of reflecting the infrared rays and the propagation speed of the infrared rays from the time of sending to the time of receiving the infrared rays, and the radar velocimeter obtains the movement speed of the measured object by calculating the frequency shift quantity of the received reflected waves through the frequency shift effect of the moving object on the received electromagnetic waves. The running condition of the trolley is recorded through the automobile data recorder, and overspeed vehicles are photographed and evidence is obtained after the rear vehicles overspeed. And the warning device on the trolley warns the vehicles coming and going to avoid the front road construction maintenance personnel by reducing the speed through the optical signal. When the infrared inductor of the trolley detects that the rear vehicle runs beyond the safe distance or the radar velocimeter detects that the rear vehicle runs at an overspeed, a signal is sent out, so that a Bluetooth device on the trolley sends out an electric wave signal, the Bluetooth headset receives the electric wave signal and converts the electric wave signal into a sound signal, and the rear of a road construction maintainer is prompted to allow the vehicle to drive to notice avoiding. The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (6)
1. A safety protection trolley is characterized by comprising a trolley body, a single chip microcomputer arranged on the trolley body, a power supply, an infrared sensor, a Bluetooth adapter, a positioning device, an LED warning lamp, a visual identification device, a vehicle data recorder, a radar velocimeter, a remote controller and a Bluetooth headset, wherein the power supply, the infrared sensor, the Bluetooth adapter, the positioning device, the LED warning lamp, the visual identification device, the vehicle data recorder and the radar velocimeter are connected with the single chip microcomputer; wherein:
the power supply is used for supplying power;
the infrared sensor is arranged behind the trolley body and used for identifying reflected infrared rays, converting the reflected infrared rays into electric signals and inputting the electric signals into the single chip microcomputer, and the single chip microcomputer can calculate the distance according to the time from the sending to the receiving of the infrared rays and the transmission speed of the infrared rays so as to determine the position of a vehicle behind;
the positioning device is used for positioning the position of the trolley body and sending the position to the single chip microcomputer;
the visual recognition device is used for recognizing work clothes on a road construction maintenance person, converting the work clothes into electric signals and then sending the electric signals to the single chip microcomputer, and the electric signals are processed and calculated by the single chip microcomputer and then drive the trolley body to act so as to follow the action of the road construction maintenance person;
the automobile data recorder is used for recording the running condition of the trolley body and sending the running condition to the single chip microcomputer for storage;
the radar speed measuring instrument is used for detecting the transverse position and the speed of a rear vehicle and sending the transverse position and the speed to the single chip microcomputer, after the transverse position of the rear vehicle and a front road construction maintainer exceed a safe distance or the rear vehicle exceeds a speed limit after the transverse position and the front road construction maintainer are processed by the single chip microcomputer, an alarm is sent out through the single chip microcomputer, and meanwhile a signal is sent to the automobile data recorder to photograph and record the overspeed vehicle;
the LED warning lamp is arranged at the top of the trolley body and used for prompting vehicles coming and going to pay attention to deceleration and avoidance;
the Bluetooth adapter is used for connecting the singlechip with the remote controller and the Bluetooth headset for communication;
the remote controller is used for sending a command for controlling the action of the trolley to the single chip microcomputer through the Bluetooth adapter;
the Bluetooth headset is used for receiving an alarm signal sent by the single chip microcomputer.
2. The safety protection cart of claim 1, wherein: the trolley body comprises a large gear, a small gear, supports, front wheels, rear wheels, a bottom plate, a steering block, a steering shifting fork, a front axle, a front shaft, a rear shaft, a steering connecting shaft, a power motor and a steering motor, wherein the supports are fixed at the rear end of the lower end surface of the bottom plate, the rear wheels are installed at two ends of the rear shaft after penetrating through shaft holes in the two supports, the small gear is axially fixed on the rear shaft, the power motor is fixed on the bottom plate, the large gear is axially fixed on an output shaft of the power motor, and the large gear is meshed with the small gear; the front end of terminal surface under the bottom plate is fixed to the front axle, turn to the piece for two and turn to the both ends of piece hinge connection front axle, turn to the both ends hinge connection of connecting axle between two pieces that turn to, turn to motor vertical fixation on the bottom plate, the output shaft tip that turns to the motor extends to terminal surface under the bottom plate and with turn to the up end vertical connection of shift fork one end, turn to the shift fork other end and the middle part fixed connection who turns to the connecting axle, the front axle is two and fixes in the outside that two turned to the piece, and the front wheel is installed at the front axle tip.
3. The safety protection cart of claim 2, wherein: the power motor and the steering motor are respectively connected with the single chip microcomputer, the single chip microcomputer controls the power motor to drive the trolley body to advance, the vision recognition device recognizes work clothes on a road construction maintenance person and converts the work clothes into electric signals, the electric signals are sent to the single chip microcomputer, the electric signals are processed and calculated by the single chip microcomputer and then send control signals to the steering motor, and when the positioning position of the road construction maintenance person is changed, the input signals change the steering direction of the steering motor, so that the travelling direction of the trolley is changed.
4. The safety protection cart of claim 2, wherein: an oval through hole is formed in one end of the steering shifting fork, and the end portion of an output shaft of the steering motor extends into the oval through hole.
5. The safety protection cart of claim 2, wherein: the warning light support rod is vertically installed on the upper end face of the bottom plate through the fixing seat.
6. The safety protection cart of claim 2, wherein: the power motor is a direct current motor, and the steering motor is a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715890.2A CN108974062B (en) | 2018-07-03 | 2018-07-03 | Safety protection dolly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810715890.2A CN108974062B (en) | 2018-07-03 | 2018-07-03 | Safety protection dolly |
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| Publication Number | Publication Date |
|---|---|
| CN108974062A CN108974062A (en) | 2018-12-11 |
| CN108974062B true CN108974062B (en) | 2021-01-01 |
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| CN201810715890.2A Active CN108974062B (en) | 2018-07-03 | 2018-07-03 | Safety protection dolly |
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| CN110517613A (en) * | 2019-09-06 | 2019-11-29 | 李良杰 | Remote control security warning sign |
| JP2021104693A (en) * | 2019-12-26 | 2021-07-26 | 株式会社 タイコー | Drive unit for electric assist truck |
| CN111071315B (en) * | 2020-02-13 | 2021-06-08 | 郑州铁路职业技术学院 | Cement shallow that turns to in a flexible way |
| CN113362647A (en) * | 2021-05-31 | 2021-09-07 | 山东高速济宁发展有限公司 | Intelligent cone barrel with high-precision positioning and intelligent sensing functions |
| CN113267775B (en) * | 2021-07-15 | 2021-10-29 | 深圳市勘察研究院有限公司 | Movable ground collapse detection device |
| CN113903190B (en) * | 2021-10-21 | 2023-01-24 | 江苏食品药品职业技术学院 | Wisdom parking area management device based on thing networking |
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| CN102629415B (en) * | 2012-04-28 | 2013-08-21 | 山东交通学院 | Automatic active early warning system for highway rescue |
| US10017201B2 (en) * | 2014-02-12 | 2018-07-10 | Tecneva S.R.L. | Control system of a self-moving cart, in particular a golf caddie |
| CN105629998A (en) * | 2016-03-09 | 2016-06-01 | 田君泽 | Loading following trolley |
| CN205450779U (en) * | 2016-03-30 | 2016-08-10 | 河南城建学院 | Barrier dolly is kept away to intelligence tracking |
| CN205540279U (en) * | 2016-04-24 | 2016-08-31 | 江西理工大学 | Independently car is followed to human body |
| CN106338999A (en) * | 2016-11-15 | 2017-01-18 | 王昊泓 | Intelligent following anti-collision dolly and anti-collision method thereof |
| CN107022962B (en) * | 2017-03-03 | 2019-03-12 | 浙江科技学院 | A kind of automobile fault alarm and its working method |
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