CN112519520A - Be applied to pull buffer stop of road construction operation car - Google Patents
Be applied to pull buffer stop of road construction operation car Download PDFInfo
- Publication number
- CN112519520A CN112519520A CN202011425200.3A CN202011425200A CN112519520A CN 112519520 A CN112519520 A CN 112519520A CN 202011425200 A CN202011425200 A CN 202011425200A CN 112519520 A CN112519520 A CN 112519520A
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- CN
- China
- Prior art keywords
- buffer
- buffering
- collision
- road construction
- fixed mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/243—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for protection in case of crash, collision, impact, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/14—Draw-gear or towing devices characterised by their type
- B60D1/145—Draw-gear or towing devices characterised by their type consisting of an elongated single bar or tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/32—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving damping devices
- B60D1/322—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving damping devices using fluid dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
- B60D1/30—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means
- B60D1/34—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for sway control, e.g. stabilising or anti-fishtail devices; Sway alarm means involving springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/06—Trailers
- B62D63/062—Trailers with one axle or two wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/06—Trailers
- B62D63/08—Component parts or accessories
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention relates to the technical field of a towing anti-collision device and discloses a towing anti-collision device applied to a road construction operation vehicle. This be applied to pull buffer stop of road construction operation car, when the condition of emergency brake takes place, can transmit to the buffering transfer line through the pull rod, because the inside fixed mounting of buffering connection box has hydraulic buffer pole and buffer spring corresponding with the buffering transfer line, can effectually cushion and prevent the collision, the offset of pull rod also can be transmitted for buffering sliding seat through the reinforcement connection down tube simultaneously, buffering sliding seat can carry out ascending slip, prevent bumping the spring in gliding process collision simultaneously, form the triangle-shaped structure, can improve the stability of junction, dual buffering can effectively improve the buffering anticollision performance of equipment.
Description
Technical Field
The invention relates to the technical field of a trailing anti-collision device, in particular to a trailing anti-collision device applied to a road construction operation vehicle.
Background
The trailer can only be combined with a tractor or other vehicle to form a complete vehicle. The total weight of the trailer is borne by itself and is called a full trailer, also referred to as a trailer for short. It features that the trailer driven by other vehicles has no power and is carried independently, and the design and technical features of the trailer are that it must be pulled by car to use it normally
It is very common among the on-vehicle daily life of trailer, the convenient dismantlement of trailer carriage and installation for disjunctor carriage, traditional be applied to the crashproof device that drags of road construction work car has some shortcomings, at first the device does not have supporting mechanism to support it when docking with the locomotive, it is difficult to install relatively, secondly the device main part pushes the go-between easily and collides with the locomotive under the inertial action of self when dragging on-vehicle brake, there is the potential safety hazard, many inconveniences have been brought for the user, so proposed one kind and be applied to the crashproof device that drags of road construction work car.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the towing anti-collision device applied to the road construction operation vehicle, which has the advantages of high safety efficiency, collision prevention and the like, and solves the problems that when a towing vehicle-mounted brake is braked, a main body of the device is easy to push a connecting ring to collide with a vehicle head under the self inertia effect, potential safety hazards exist, and a plurality of inconveniences are brought to a user.
(II) technical scheme
In order to achieve the purposes of high safety efficiency and collision prevention, the invention provides the following technical scheme: a trailing anti-collision device applied to a road construction operation vehicle comprises an operation vehicle box, wherein a movable wheel is fixedly mounted at the bottom of the operation vehicle box, brake equipment corresponding to the movable wheel is fixedly mounted at the bottom of the operation vehicle box, a buffer connecting box is fixedly mounted at the bottom of the right side of the operation vehicle box, hydraulic buffer rods are fixedly mounted in the buffer connecting box, buffer springs are fixedly mounted in the buffer connecting box and on the outer surfaces of the hydraulic buffer rods, buffer transmission rods in contact with the hydraulic buffer rods and the buffer springs are movably mounted at the right side of the buffer connecting box, three inductors are fixedly mounted on the inner top wall of the buffer connecting box, induction connecting pieces corresponding to the inductors are fixedly mounted at one end of each buffer transmission rod in the buffer connecting box, and a connecting ring is fixedly mounted at the other end of each buffer transmission rod, the buffer transmission rod is movably connected with the traction ring through a connecting ring, the other end of the traction ring is fixedly provided with a traction rod, the top of the traction rod is fixedly provided with a connecting seat, the right side of the operation compartment is movably provided with a buffering sliding seat, the right side of the buffer sliding seat is fixedly provided with a connecting ring, the inside of the connecting ring is movably provided with a reinforced connecting inclined rod movably connected with the connecting seat, the right side of the operating carriage is provided with a sliding groove corresponding to the buffering sliding seat, the inner bottom wall and the inner top wall of the sliding groove are both fixedly provided with anti-collision springs corresponding to the buffering sliding seat, the right side of the operation compartment is fixedly provided with an anti-collision protection frame, the right side of the operation compartment is fixedly provided with an anti-collision spring corresponding to the anti-collision protection frame, and one side of the anti-collision protection frame, which is close to the operation carriage, is fixedly provided with a connecting seat corresponding to the anti-collision spring.
Preferably, the anti-collision protective frame is an arc-shaped plate, and the anti-collision protective frame is an ultra-high molecular weight polyethylene anti-collision plate.
Preferably, a hydraulic pump corresponding to the hydraulic buffer rod is fixedly installed inside the working compartment.
Preferably, the top of the induction connecting sheet is fixedly provided with a trigger probe corresponding to the three inductors.
Preferably, a controller is fixedly installed inside the operating compartment, and the controller corresponds to the three sensors and the brake equipment.
Preferably, the anti-collision protection frame is internally provided with a movable groove corresponding to the reinforced connecting inclined rod.
Preferably, wear-resistant pieces corresponding to the buffer sliding seats are uniformly and fixedly installed on the inner wall of the sliding groove, and the wear-resistant pieces are metal copper sheets.
Preferably, the hydraulic buffer rod is connected with the buffer spring in a sleeved mode, and the buffer spring is fixedly connected with the buffer connecting box.
Preferably, the buffer transmission rod and the traction rod are movably connected with the traction ring through a connecting ring, and the buffer transmission rod and the connecting ring, and the traction rod and the traction ring are made of stainless steel.
(III) advantageous effects
Compared with the prior art, the invention provides a trailing anti-collision device applied to a road construction operation vehicle, which has the following beneficial effects:
the towing anti-collision device applied to the road construction operation vehicle can be transmitted to the buffer transmission rod through the traction rod when an emergency brake occurs, as the hydraulic buffer rod and the buffer spring corresponding to the buffer transmission rod are fixedly arranged in the buffer connection box, the collision can be effectively prevented through buffering, the offset of the traction rod can also be transmitted to the buffer sliding seat through the reinforced connection inclined rod, the buffer sliding seat can slide upwards, meanwhile, the anti-collision spring is collided in the sliding process to form a triangular structure, the stability of a connection part can be improved, the buffer anti-collision performance of equipment can be effectively improved through double buffering, meanwhile, the controller is fixedly arranged in the operation vehicle box, corresponds to the three sensors and the brake equipment, and can sequentially pass through the three sensors when the offset of the buffer transmission rod is overlarge, every inductor can both be further trigger the different stages of brake equipment, can the operation railway carriage has the function of initiative brake, avoid the collision, it is the arc to have set up the anticollision bearer bar simultaneously, the anticollision bearer bar is ultra high molecular weight polyethylene anticollision board, can effectively reduce the loss when the collision can not be avoided, push link and locomotive collision under the inertial action of self easily when having solved the braking of pulling on-vehicle brake, there is the potential safety hazard, many inconvenient problems have been brought for the user.
Drawings
FIG. 1 is a schematic structural view of a trailing anti-collision device applied to a road construction vehicle according to the present invention;
fig. 2 is an enlarged schematic view of a structure a in fig. 1 of a trailing anti-collision device applied to a road construction vehicle according to the present invention.
In the figure: the device comprises an operation compartment 1, a moving wheel 2, a brake device 3, a buffer connecting box 4, a hydraulic buffer rod 5, a buffer spring 6, a buffer transmission rod 7, a connecting ring 8, a traction ring 9, a traction rod 10, a connecting seat 11, a reinforcing connecting inclined rod 12, an anti-collision protection frame 13, a connecting ring 14, a buffer sliding seat 15, a sliding groove 16, an anti-collision spring 17, a connecting seat 18, an anti-collision spring 19, a hydraulic pump 20, an induction connecting sheet 21 and an inductor 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, a trailing anti-collision device applied to a road construction vehicle comprises a working vehicle box 1, a movable wheel 2 is fixedly mounted at the bottom of the working vehicle box 1, a brake device 3 corresponding to the movable wheel 2 is fixedly mounted at the bottom of the working vehicle box 1, a buffer connecting box 4 is fixedly mounted at the bottom of the right side of the working vehicle box 1, a hydraulic buffer rod 5 is fixedly mounted inside the buffer connecting box 4, a hydraulic pump 20 corresponding to the hydraulic buffer rod 5 is fixedly mounted inside the working vehicle box 1, a buffer spring 6 is fixedly mounted inside the buffer connecting box 4 and on the outer surface of the hydraulic buffer rod 5, the hydraulic buffer rod 5 and the buffer spring 6 are connected in a sleeved mode, the buffer spring 6 is fixedly connected with the buffer connecting box 4, a buffer transmission rod 7 in contact with the hydraulic buffer rod 5 and the buffer spring 6 is movably mounted at the right side of the buffer connecting box 4, the inner top wall of the buffer connecting box 4 is fixedly provided with three inductors 22, one end of the buffer transmission rod 7 positioned inside the buffer connecting box 4 is fixedly provided with a sensing connecting sheet 21 corresponding to the inductors 22, the top of the sensing connecting sheet 21 is fixedly provided with a trigger probe corresponding to the three inductors 22, the inside of the operation compartment 1 is fixedly provided with a controller, the controller corresponds to the three inductors 22 and the brake device 3, the other end of the buffer transmission rod 7 is fixedly provided with a connecting ring 8, the buffer transmission rod 7 is movably connected with a traction ring 9 through the connecting ring 8, the other end of the traction ring 9 is fixedly provided with a traction rod 10, the buffer transmission rod 7 and the traction rod 10 are movably connected with the traction ring 9 through the connecting ring 8, the buffer transmission rod 7 and the connecting ring 8, the traction rod 10 and the traction ring 9 are made of stainless steel, and the top of the traction rod, a buffer sliding seat 15 is movably arranged on the right side of the operation compartment 1, a connecting ring 14 is fixedly arranged on the right side of the buffer sliding seat 15, a reinforced connection inclined rod 12 movably connected with the connecting seat 11 is movably arranged in the connecting ring 14, a sliding groove 16 corresponding to the buffer sliding seat 15 is arranged on the right side of the operation compartment 1, wear-resistant sheets corresponding to the buffer sliding seat 15 are uniformly and fixedly arranged on the inner wall of the sliding groove 16, the wear-resistant sheets are metal copper sheets, anti-collision springs 19 corresponding to the buffer sliding seat 15 are fixedly arranged on the inner bottom wall and the inner top wall of the sliding groove 16, an anti-collision protection frame 13 is fixedly arranged on the right side of the operation compartment 1, a movable groove corresponding to the reinforced connection inclined rod 12 is arranged in the anti-collision protection frame 13, the anti-collision protection frame 13 is an arc-shaped plate, the anti-collision protection frame 13 is an ultra-high molecular weight polyethylene anti-collision plate, and an anti-, and a connecting seat 18 corresponding to the anti-collision spring 17 is fixedly arranged on one side of the anti-collision protection frame 13 close to the operation compartment 1.
In conclusion, the trailing anti-collision device applied to the road construction operation vehicle can transmit the hydraulic buffer rod 5 and the buffer spring 6 corresponding to the buffer transmission rod 7 through the traction rod 10 when an emergency brake occurs, and can effectively buffer and prevent collision because the hydraulic buffer rod 5 and the buffer spring 6 corresponding to the buffer transmission rod 7 are fixedly installed inside the buffer connection box 4, and meanwhile, the offset of the traction rod 10 can also be transmitted to the buffer sliding seat 15 through the reinforced connection inclined rod 12, the buffer sliding seat 15 can slide upwards, and meanwhile, the anti-collision spring 19 is collided during sliding to form a triangular structure, so that the stability of a connection part can be improved, the buffer and anti-collision performance of equipment can be effectively improved through double buffering, meanwhile, a controller is fixedly installed inside the operation vehicle box 1, corresponds to the three sensors 22 and the brake equipment 3, and when the offset of the buffer transmission rod 7 is too large, can pass through three inductor 22 in proper order, every inductor 22 can both be further trigger the different stages of brake equipment 3, can operate the function that railway carriage 1 has the initiative brake, avoid the collision, it is the arc to have set up crashproof protective frame 13 simultaneously, crashproof protective frame 13 is ultra high molecular weight polyethylene anticollision board, can effectively reduce the loss when the collision can not be avoided, the device main part pushes away go-between and locomotive collision under the inertial action of self easily when having solved the braking of trailing on-vehicle brake, there is the potential safety hazard, many inconvenient problems have been brought for the user.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (9)
1. The utility model provides a be applied to pull buffer stop of road construction operation car, includes operation railway carriage (1), its characterized in that: the bottom fixed mounting of operation railway carriage (1) has removal wheel (2), the bottom fixed mounting of operation railway carriage (1) has and removes the corresponding brake equipment (3) of wheel (2), the right side bottom fixed mounting of operation railway carriage (1) has buffering connection box (4), the inside fixed mounting of buffering connection box (4) has hydraulic buffer pole (5), the inside of buffering connection box (4) just is located the outer fixed surface of hydraulic buffer pole (5) and installs buffer spring (6), the right side movable mounting of buffering connection box (4) has buffer transmission pole (7) that contact with hydraulic buffer pole (5) and buffer spring (6), fixed mounting has inductor (22) that quantity is three on the interior roof of buffering connection box (4), the one end fixed mounting that buffering transmission pole (7) is located buffering connection box (4) inside has response connection piece (21) corresponding with inductor (22), the other end fixed mounting of buffering transfer line (7) has go-between (8), buffering transfer line (7) is through go-between (8) and traction ring (9) swing joint, the other end fixed mounting of traction ring (9) has traction lever (10), the top fixed mounting of traction lever (10) has connecting seat (11), the right side movable mounting of operation railway carriage (1) has buffering sliding seat (15), the right side fixed mounting of buffering sliding seat (15) has go-between (14), the inside movable mounting of go-between (14) has the reinforcement connection down tube (12) with connecting seat (11) swing joint, the right side of operation railway carriage (1) is seted up and is cushioned sliding tray (16) corresponding with buffering sliding seat (15), equal fixed mounting has on the interior diapire of sliding tray (16) and the interior roof and prevents bumping spring (19) corresponding with buffering sliding seat (15), the anti-collision protection device is characterized in that an anti-collision protection frame (13) is fixedly mounted on the right side of the operation carriage (1), an anti-collision spring (17) corresponding to the anti-collision protection frame (13) is fixedly mounted on the right side of the operation carriage (1), and a connecting seat (18) corresponding to the anti-collision spring (17) is fixedly mounted on one side, close to the operation carriage (1), of the anti-collision protection frame (13).
2. The trailing collision avoidance device applied to a road construction vehicle according to claim 1, wherein: the anti-collision protection frame (13) is an arc-shaped plate, and the anti-collision protection frame (13) is an ultra-high molecular weight polyethylene anti-collision plate.
3. The trailing collision avoidance device applied to a road construction vehicle according to claim 1, wherein: and a hydraulic pump (20) corresponding to the hydraulic buffer rod (5) is fixedly arranged in the operation compartment (1).
4. The trailing collision avoidance device applied to a road construction vehicle according to claim 1, wherein: and the top of the induction connecting sheet (21) is fixedly provided with a trigger probe corresponding to the three inductors (22).
5. The trailing collision avoidance device applied to a road construction vehicle according to claim 1, wherein: the interior fixed mounting of operation railway carriage (1) has the controller, the controller corresponds with three inductor (22) and brake equipment (3).
6. The trailing collision avoidance device applied to a road construction vehicle according to claim 1, wherein: the anti-collision protection frame (13) is internally provided with a movable groove corresponding to the reinforced connection inclined rod (12).
7. The trailing collision avoidance device applied to a road construction vehicle according to claim 1, wherein: wear-resistant pieces corresponding to the buffer sliding seats (15) are uniformly and fixedly installed on the inner wall of the sliding groove (16), and the wear-resistant pieces are metal copper sheets.
8. The trailing collision avoidance device applied to a road construction vehicle according to claim 1, wherein: the hydraulic buffer rod (5) is connected with the buffer spring (6) in a sleeved mode, and the buffer spring (6) is fixedly connected with the buffer connecting box (4).
9. The trailing collision avoidance device applied to a road construction vehicle according to claim 1, wherein: the buffer transmission rod (7) and the traction rod (10) are movably connected with the traction ring (9) through a connection ring (8), and the buffer transmission rod (7) and the connection ring (8) as well as the traction rod (10) and the traction ring (9) are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011425200.3A CN112519520A (en) | 2020-12-09 | 2020-12-09 | Be applied to pull buffer stop of road construction operation car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011425200.3A CN112519520A (en) | 2020-12-09 | 2020-12-09 | Be applied to pull buffer stop of road construction operation car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112519520A true CN112519520A (en) | 2021-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011425200.3A Pending CN112519520A (en) | 2020-12-09 | 2020-12-09 | Be applied to pull buffer stop of road construction operation car |
Country Status (1)
| Country | Link |
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| CN (1) | CN112519520A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205853785U (en) * | 2016-07-26 | 2017-01-04 | 李文君 | A kind of caravan traction frame |
| CN206537246U (en) * | 2017-02-20 | 2017-10-03 | 山东郓城新亚挂车制造有限公司 | Attachment means are protected in a kind of semitrailer side |
| CN206749720U (en) * | 2017-04-17 | 2017-12-15 | 浙江农业商贸职业学院 | A kind of automobile mechanical impact attenuation device |
| CN208544267U (en) * | 2018-06-25 | 2019-02-26 | 福建圆梦新能源科技有限公司 | A kind of anti-collision device for automobile |
| CN210027319U (en) * | 2019-05-21 | 2020-02-07 | 绍兴厚道自动化设备有限公司 | Automobile anti-collision component with high safety performance |
| CN210881555U (en) * | 2019-11-22 | 2020-06-30 | 湖南城市学院 | Be applied to pull buffer stop of road construction operation car |
-
2020
- 2020-12-09 CN CN202011425200.3A patent/CN112519520A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205853785U (en) * | 2016-07-26 | 2017-01-04 | 李文君 | A kind of caravan traction frame |
| CN206537246U (en) * | 2017-02-20 | 2017-10-03 | 山东郓城新亚挂车制造有限公司 | Attachment means are protected in a kind of semitrailer side |
| CN206749720U (en) * | 2017-04-17 | 2017-12-15 | 浙江农业商贸职业学院 | A kind of automobile mechanical impact attenuation device |
| CN208544267U (en) * | 2018-06-25 | 2019-02-26 | 福建圆梦新能源科技有限公司 | A kind of anti-collision device for automobile |
| CN210027319U (en) * | 2019-05-21 | 2020-02-07 | 绍兴厚道自动化设备有限公司 | Automobile anti-collision component with high safety performance |
| CN210881555U (en) * | 2019-11-22 | 2020-06-30 | 湖南城市学院 | Be applied to pull buffer stop of road construction operation car |
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Application publication date: 20210319 |