CN213734876U - Rear buffer device of engineering truck and anti-collision engineering truck - Google Patents
Rear buffer device of engineering truck and anti-collision engineering truck Download PDFInfo
- Publication number
- CN213734876U CN213734876U CN202022749914.1U CN202022749914U CN213734876U CN 213734876 U CN213734876 U CN 213734876U CN 202022749914 U CN202022749914 U CN 202022749914U CN 213734876 U CN213734876 U CN 213734876U
- Authority
- CN
- China
- Prior art keywords
- frame
- buffer
- engineering truck
- buffering
- vehicle
- 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.)
- Active
Links
Images
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model provides a rearmounted buffer and crashproof machineshop car of machineshop car belongs to vehicle engineering technical field, including link, buffering frame and power supporting component. When the engineering truck runs, the power support assembly is started, the buffer frame is turned upwards by 90 degrees and lifted, and the engineering truck is convenient to run; when the engineering truck is suspended and construction operation is carried out, the power supporting assembly is closed, the buffering frame is turned downwards by 90 degrees and falls down, so that the buffering frame is horizontally placed at the rear end of the engineering truck, and the engineering truck is prevented from being collided. The buffer frame can contract along the running direction of the engineering truck, when the engineering truck is suspended and construction work is carried out, and a vehicle behind the engineering truck can not reach a brake to collide with the buffer frame, the buffer frame is stressed to contract along the collision direction to buffer, so that the collision force of the vehicle is counteracted, and the engineering truck can be effectively prevented from being collided; and the buffer space can be provided for the rear vehicle, so that the serious accident that the rear vehicle and personnel are damaged and die is avoided.
Description
Technical Field
The utility model belongs to the technical field of vehicle engineering, more specifically say, relate to a rearmounted buffer of machineshop car and anticollision machineshop car.
Background
Road construction, such as a sweeper or a sprinkler or a watering vehicle, needs to be stopped temporarily on site during work or for some reasons, particularly when construction work is carried out on a highway express way, the rear vehicle runs very fast, and when some drivers find the front construction vehicle, the rear drivers easily bump into the construction vehicle due to untimely braking or other reasons, so that personal accidents occur to the rear drivers.
Although some construction vehicles have installed buffer stop at present, but not only the anticollision effect is poor, and is bulky moreover, uses very inconveniently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rearmounted buffer and crashproof machineshop car of machineshop car aims at solving the machineshop car buffer stop anticollision effect poor, and the personal accident's problem appears in the personnel that send the back car easily.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a rearmounted buffer of machineshop car, includes:
the connecting frame is used for being installed at the rear end of the engineering vehicle; the connecting frame is provided with two groups of supporting arms which are respectively positioned at two sides of the connecting frame and protrude towards the rear of the engineering truck, and rotating shafts are respectively connected to the two supporting arms in a rotating mode;
the two sides of the front end of the buffer frame are respectively fixedly connected with the two rotating shafts; the buffer frame is used for shrinkage deformation when accepting impact; and
the power support assembly is fixed on the connecting frame, and a power output end is connected with the front end of the buffer frame and used for driving the buffer frame to turn over;
the buffer frame is in a flat state of being overturned to be supported on the ground, and is also in a standing state of being overturned to be close to the rear end of the engineering truck and far away from the ground; in the standing state, the power support assembly supports the cushion frame.
As another embodiment of the present application, the buffer frame includes a front frame, a rear frame, and two sets of side frames hinged to the front frame and the rear frame, respectively; each group of side frames comprises at least two frame bodies which are sequentially hinged in a front-back manner;
wherein, a damping steel cable arranged along the left-right direction is connected between the two groups of side frames.
As another embodiment of the present application, the hinge portion of the frame body is two cross bar bodies respectively located on the front end surface and the rear end surface of the frame body and extending in the front-rear direction; the lengths of the two transverse rod bodies are equal; the corresponding transverse rod bodies of the two frame bodies which are adjacent in the front and the back are connected through articulated shafts.
As another embodiment of the present application, a buffer box is disposed in the buffer frame, and an air bag is filled in the buffer box.
As another embodiment of this application, the rear end of buffering frame is provided with the splint, the splint with be connected through multiunit elastic component between the rear end of buffering frame.
As another embodiment of the present application, an elastic plate is connected to the rear plate surface of the clamping plate.
As another embodiment of the application, a warning light is fixed on the elastic plate.
As another embodiment of this application, the both sides of buffering frame are provided with the supporting wheel respectively, the supporting wheel with connect through heightening the subassembly between the buffering frame.
As another embodiment of the present application, the height-adjusting assembly includes:
the connecting block is fixedly connected to the buffer frame and provided with a through groove which is communicated along the vertical direction, and a fixing hole communicated with the through groove is formed in the side surface of the connecting block;
two ends of the adjusting rod respectively penetrate through the through grooves and can move up and down along the connecting block, and the lower end of the adjusting rod is rotatably connected with the supporting wheel; the adjusting rod is provided with a plurality of threaded holes at intervals along the up-down direction; and
a threaded fastener passing through the fixing hole and threadedly coupled in one of the threaded holes.
The utility model provides a rearmounted buffer of machineshop car's beneficial effect lies in: compared with the prior art, the utility model discloses the rearmounted buffer of machineshop car passes through the link and installs the rear end at the machineshop car, cushion frame front end both sides respectively with two rotation axis fixed connection on the link, power supporting component fixes on the link, and power take off end is connected with the cushion frame front end. When the engineering truck runs, the power support assembly is started, the buffer frame is turned upwards by 90 degrees and lifted, and the engineering truck is convenient to run; when the engineering truck is suspended and construction operation is carried out, the power supporting assembly is closed, the buffering frame is turned downwards by 90 degrees and falls down, so that the buffering frame is horizontally placed at the rear end of the engineering truck, and the engineering truck is prevented from being collided. The buffer frame can contract along the running direction of the engineering truck, when the engineering truck is suspended and construction work is carried out, and a vehicle behind the engineering truck can not reach a brake to collide with the buffer frame, the buffer frame is stressed to contract along the collision direction to buffer, so that the collision force of the vehicle is counteracted, and the engineering truck can be effectively prevented from being collided; and the buffer space can be provided for the rear vehicle, so that the serious accident that the rear vehicle and the personnel are damaged and die is avoided, the economic loss is greatly reduced, and the personal safety of the personnel is effectively protected.
The utility model also provides an anticollision machineshop car, including above arbitrary embodiment the rearmounted buffer of machineshop car.
The utility model provides an anticollision machineshop car adopts as above embodiment the rearmounted buffer of machineshop car, the two technological effect is the same, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic perspective view of a rear buffer device of a mobile machinery shop in a construction state of the mobile machinery shop according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a rear buffer device of a mobile machinery shop in an operating state of the mobile machinery shop according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of an elevation component in an embodiment of the present invention;
fig. 4 is a schematic perspective view of the inside of the buffer box in the embodiment of the present invention;
fig. 5 is a schematic perspective view of a retracted state of the buffering frame according to an embodiment of the present invention.
In the figure:
100. a connecting frame; 110. A support arm; 120. A rotating shaft;
200. a buffer frame; 210. A front frame; 220. A rear frame;
230. a side frame; 231. A frame body; 232. A cross bar body;
240. a damping wire rope; 250. A buffer tank; 251. Iron sheet;
252. reinforcing ribs; 253. An air bag; 300. A powered support assembly;
310. a hydraulic cylinder; 320. A hydraulic pump; 400. A splint;
410. an elastic member; 500. An elastic plate; 510. A warning light;
600. a support wheel; 700. A height adjustment component; 710. Connecting blocks;
711. a through groove; 712. A fixing hole; 720. Adjusting a rod;
721. a threaded hole; 730. A positioning cover; 740. A handle;
750. and (4) a threaded locking piece.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The direction of the head of the engineering truck is defined as front, and the direction of the tail of the engineering truck is defined as rear.
Referring to fig. 1 to 5, a rear buffer device 2 of a working truck and a crash-proof working truck according to the present invention will now be described. The rear buffer device of the engineering truck comprises a connecting frame 100, a buffer frame 200 and a power support assembly 300.
The connecting frame 100 is used for being installed at the rear end of the engineering vehicle; the connecting frame 100 has two groups of supporting arms 110 which are respectively positioned at two sides of the connecting frame and protrude towards the rear of the engineering truck, and the two supporting arms 110 are respectively and rotatably connected with a rotating shaft 120; two sides of the front end of the buffer frame 200 are respectively fixedly connected with the two rotating shafts 120; the buffer frame 200 is used for shrinkage deformation when receiving impact; the power support assembly 300 is fixed on the connecting frame 100, and the power output end is connected with the front end of the buffer frame 200 and is used for driving the buffer frame 200 to turn over; the buffer frame 200 is in a flat state of being turned over to be supported on the ground, and is in a standing state of being turned over to be close to the rear end of the engineering truck and far away from the ground; in the standing state, the power support assembly 300 supports the buffer frame 200.
The utility model provides a rearmounted buffer of machineshop car, compared with the prior art, the utility model discloses rearmounted buffer of machineshop car passes through link 100 and installs the rear end at the machineshop car, and buffering frame 200 front end both sides respectively with two rotation axis 120 fixed connection on link 100, power supporting component 300 fixes on link 100, and power take off end is connected with buffering frame 200 front end. When the engineering truck runs, the power support assembly 300 is started, and the buffer frame 200 is turned upwards by 90 degrees and lifted, so that the engineering truck can run conveniently; when the engineering truck is suspended and construction work is carried out, the power support assembly 300 is closed, the buffer frame 200 is turned downwards for 90 degrees and falls down, so that the buffer frame 200 is horizontally placed at the rear end of the engineering truck, and the engineering truck is prevented from being collided. The buffer frame 200 can be contracted along the running direction of the engineering vehicle, when the engineering vehicle is suspended and construction work is carried out, and when a vehicle is not in time to brake to impact the buffer frame 200 at the rear, the buffer frame 200 is stressed to be contracted along the impact direction for buffering, so that the impact force of the vehicle is counteracted, and the engineering vehicle can be effectively prevented from being impacted; and the buffer space can be provided for the rear vehicle, so that the serious accident that the rear vehicle and the personnel are damaged and die is avoided, the economic loss is greatly reduced, and the personal safety of the personnel is effectively protected.
Specifically, the power support assembly 300 may be a hydraulic pump 320 and a hydraulic cylinder 310. When the engineering truck needs to operate, the hydraulic pump 320 is started, the hydraulic pump 320 drives a piston rod of the hydraulic cylinder 310 to push the buffer frame 200 obliquely upwards, and the buffer frame 200 is vertically turned upwards by 90 degrees to be lifted, so that the engineering truck can operate conveniently; when the engineering truck is suspended and construction work is carried out, the hydraulic pump 320 is started, the hydraulic pump 320 drives a piston rod of the hydraulic cylinder 310 to obliquely pull the buffer frame 200 downwards, the buffer frame 200 is turned downwards by 90 degrees and falls down, the buffer frame 200 is horizontally placed at the rear end of the engineering truck, the engineering truck is prevented from being collided, and meanwhile, a buffer space is provided for a vehicle at the rear side.
In addition, the number of the hydraulic cylinders 310 is preferably two, and the two cylinders are respectively provided on both sides of the link frame 100 in the vehicle traveling direction.
As an alternative embodiment of this embodiment, the power supporting assembly 300 may also be an air cylinder and an electrical box, the electrical box moves the air cylinder to contract, and the air cylinder drives the buffering frame 200 to turn over.
As a specific embodiment of the rear buffer device 2 of the engineering truck, please refer to fig. 1 and 5, the buffer frame 200 includes a front frame 210, a rear frame 220, and two sets of side frames 230 hinged to the front frame 210 and the rear frame 220 respectively; each set of side frames 230 comprises at least two frame bodies 231 hinged in sequence; among them, a damping wire 240 installed in the left and right direction is connected between the two sets of side frames 230.
The frame 231 is hinged in front and back in sequence to realize that the buffer frame 200 can be contracted along the running direction of the engineering truck, and a damping steel cable 240 arranged along the left-right direction is connected between the two groups of side frames 230 to prevent the buffer frame 200 from shaking when the engineering truck runs. When a vehicle behind the vehicle is not in time for braking to collide with the buffer frame 200, the rear frame 220 of the buffer frame 200 is forced to move forwards, one end of the side frame 230 hinged with the rear frame 220 moves inwards around the hinged shaft, one end of the frame body 231 of the side frame 230 hinged with the frame body moves outwards around the hinged shaft, the damping steel cable 240 is broken by tension, and the buffer frame 200 contracts to buffer, so that the collision force of the vehicle is counteracted, the engineering vehicle can be effectively prevented from being collided, and meanwhile, a buffer space is provided for the vehicle behind.
Specifically, as shown in fig. 1, the connecting shafts at the corners of the cushion frame 200 are connected by a common rope, so that the stability of the cushion frame 200 can be further improved.
Specifically, the damping steel cable 240 is a steel cable with a damping button in the middle, and the tension damping button is disconnected, which is the prior art.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 5, the hinge portion of the frame 231 is two cross rods 232 respectively located on the front end surface and the rear end surface of the frame 231 and extending in the front-rear direction; the two cross bar bodies 232 are equal in length; the corresponding cross bar bodies 232 of the two frame bodies 231 adjacent to each other in the front and rear are connected by hinge shafts.
When a vehicle is in the rear and the vehicle is not in time to brake to hit the buffer frame 200, one end of the two cross rods 232 hinged to each other moves outwards around the hinge shaft, and the other ends of the two cross rods 232 move inwards along with the frame 231, the damping steel cable 240 is broken by tension, the buffer frame 200 is compressed, and the impact force of the vehicle is counteracted. The frame 231 has a simple structure and is easy to process.
As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 and fig. 4, a buffer box 250 is disposed in the buffer frame 200, and the inside of the buffer box 250 is filled with an air bag 253.
When there is the vehicle to come too late the brake to hit buffer at the rear, buffering frame 200 receives the impact force shrink earlier, then buffer box 250 receives the impact force and produces reaction force, because the inside packing of buffer box 250 has gasbag 253, so gasbag 253 also can produce reaction force, further offsets the impact force, improves the utility model discloses a buffering effect prevents that the machineshop car from being hit, further provides the buffering space for the rear vehicle.
Specifically, as shown in fig. 4, the buffer box 250 shell is formed by welding iron sheet 251, and adjacent iron sheet 251 is inboard to be equipped with the strengthening rib 252 that is formed by the preparation of energy-absorbing aluminium, when having guaranteed the intensity of buffer box 250, can also further improve the utility model discloses a buffering effect.
In this embodiment, in order to further increase the connection strength between the buffer box 250 and the buffer frame 200, the buffer box 250 may be flexibly connected to the buffer frame 200 by using a tool such as a rope.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, a clamping plate 400 is disposed at the rear end of the buffering frame 200, and the clamping plate 400 is connected to the rear end of the buffering frame 200 through a plurality of sets of elastic members 410.
When the vehicle comes too late the brake to hit buffer, strike splint 400 earlier, splint 400 transmits the impact for elastic component 410, and elastic component 410 atress compression produces the reaction force, offsets a part of impact earlier, then transmits the impact for buffering frame 200 and baffle-box 250, has further improved the utility model discloses a buffering effect.
Specifically, the elastic member 410 may be a spring, or may be polyurethane.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the elastic plate 500 is connected to the rear plate surface of the splint 400.
When the vehicle comes too late the brake to hit buffer, strike elastic plate 500 earlier, elastic plate 500 atress compression produces reaction force, can delay impact time, has increased area of contact in addition and has reduced the unit area pressure, offsets a part of impact earlier, then transmits the impact for elastic component 410, buffering frame 200 and baffle-box 250, has further improved the utility model discloses a buffering effect.
Specifically, the elastic plate 500 may be a rubber plate or a sponge pad.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, a warning light 510 is fixed on the elastic plate 500.
When the buffer frame 200 is horizontally placed, the warning lamp 510 of the elastic plate 500 warns the following vehicle.
In addition, as shown in fig. 2, a warning light 510 is also disposed on the lower end surface of the buffer frame 200, and when the buffer frame 200 is lifted and vertically placed, the warning light 510 on the lower end surface of the buffer frame 200 is just turned over to the rear side of the engineering truck, thereby warning the rear vehicle.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to fig. 3, the two sides of the buffer frame 200 are respectively provided with a supporting wheel 600, and the supporting wheel 600 is connected to the buffer frame 200 through a height-adjusting assembly 700.
When the engineering truck is paused and construction work is carried out, the buffer frame 200 is turned downwards by 90 degrees and falls down, the buffer frame 200 is horizontally placed at the rear end of the engineering truck, in order to prevent the buffer frame 200 from impacting the ground due to overweight, supporting wheels 600 are respectively arranged at two sides of the buffer frame 200, the supporting wheels 600 are connected with the buffer frame 200 through a heightening component 700, the height of the buffer frame 200 can be adjusted by the heightening component 700, and when the buffer frame 200 falls, the supporting wheels 600 play roles of buffering and supporting the buffer frame 200.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, the height-adjusting assembly 700 includes a connecting block 710, an adjusting rod 720 and a threaded locking member 750.
The connecting block 710 is fixedly connected to the buffer frame 200, and is provided with a through groove 711 penetrating in the vertical direction, and the side surface of the connecting block is provided with a fixing hole 712 communicated with the through groove 711; two ends of the adjusting rod 720 respectively penetrate through the through groove 711 and can move up and down along the connecting block 710, and the lower end of the adjusting rod is rotatably connected with the supporting wheel 600; the adjusting rod 720 is provided with a plurality of threaded holes 721 at intervals along the vertical direction; a threaded fastener 750 passes through the securing aperture 712 and is threaded into one of the threaded apertures 721.
Pass the logical groove 711 of connecting block 710 from the bottom up with adjusting pole 720 one end, the other end rotates with supporting wheel 600 to be connected, then adjust the pole 720 from top to bottom, when making buffering frame 200 horizontal placement, supporting wheel 600 just in time contacts ground, then pass the screw retaining member 750 and twist in corresponding screw hole 721 this moment, fix adjusting pole 720 in connecting block 710, guarantee buffering frame 200 during operation horizontal placement, can the at utmost offset the impact, prevent that the counter-acting force that produces is crooked and produce the decomposition force.
In this embodiment, the upper end of the adjusting lever 720 is provided with the positioning cover 730 and the handle 740, the positioning cover 730 can prevent the adjusting lever 720 from falling from the through groove 711 when the adjusting lever 720 is adjusted, and the handle 740 can adjust the adjusting lever 720 more conveniently.
The utility model also provides an anticollision machineshop car. Referring to fig. 1 to 5, the anti-collision engineering truck includes the rear buffer device of the engineering truck according to any embodiment.
The rear end of the anti-collision engineering truck is provided with an engineering truck rear buffer device, when a vehicle is not in time to brake and hit the buffer device, the vehicle firstly hits the elastic plate 500, and the elastic plate 500 is stressed and compressed to generate a reaction force to form first-stage buffer; then, the impact force is transmitted to the elastic piece 410, and the elastic piece 410 is compressed under force to generate a reaction force, so that a second-stage buffer is formed; then, the impact force is transmitted to the buffer frame 200, the rear frame 220 of the buffer frame 200 is stressed to move forwards, one end of the side frame 230, which is hinged with the rear frame 220, moves inwards around a hinged shaft, one end of the side frame 230, which is hinged between the frame bodies 231, moves outwards around the hinged shaft, the damping steel cable 240 is broken by tension, and the buffer frame 200 contracts to generate reaction force, so that third-level buffer is formed; then the impact force is transmitted to the buffer box 250, and the air bag 253 in the buffer box 250 is compressed by force to generate a reaction force, so that a fourth-stage buffer is formed; the level four buffering simultaneous action has improved crashproof performance of anticollision machineshop car greatly, and level four buffer structure is compact moreover, has reduced buffer's volume greatly, and the machineshop car installation of being convenient for more is used, moreover the utility model discloses because compact structure is difficult for rocking, appear swinging by a wide margin when can preventing that the rear vehicle from hitting buffer bight, avoid the rear vehicle out of control and cause the emergence of car damage casualties accident.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Rearmounted buffer of machineshop car, its characterized in that includes:
the connecting frame is used for being installed at the rear end of the engineering vehicle; the connecting frame is provided with two groups of supporting arms which are respectively positioned at two sides of the connecting frame and protrude towards the rear of the engineering truck, and rotating shafts are respectively connected to the two supporting arms in a rotating mode;
the two sides of the front end of the buffer frame are respectively fixedly connected with the two rotating shafts; the buffer frame is used for contracting and deforming when being stressed and impacted; and
the power support assembly is fixed on the connecting frame, and a power output end is connected with the front end of the buffer frame and used for driving the buffer frame to turn over;
the buffer frame is in a flat state of being overturned to be supported on the ground, and is also in a standing state of being overturned to be close to the rear end of the engineering truck and far away from the ground; in the standing state, the power support assembly supports the cushion frame.
2. The rear buffer device of the engineering truck as claimed in claim 1, wherein the buffer frame comprises a front frame, a rear frame and two sets of side frames hinged with the front frame and the rear frame respectively; each group of side frames comprises at least two frame bodies which are sequentially hinged in a front-back manner;
wherein, a damping steel cable arranged along the left-right direction is connected between the two groups of side frames.
3. The rear buffering device for engineering truck as claimed in claim 2, wherein the hinged portion of the frame body is two cross rods respectively located at the front end face and the rear end face of the frame body and extending along the front-rear direction; the lengths of the two transverse rod bodies are equal; the corresponding transverse rod bodies of the two frame bodies which are adjacent in the front and the back are connected through articulated shafts.
4. The rear buffering device for the engineering truck as claimed in any one of claims 1 to 3, wherein a buffer tank is arranged in the buffer frame, and an air bag is filled in the buffer tank.
5. The rear buffering device for the engineering truck as claimed in claim 4, wherein a clamping plate is arranged at the rear end of the buffering frame, and the clamping plate and the rear end of the buffering frame are connected through a plurality of sets of elastic members.
6. The rear buffering device for engineering truck as claimed in claim 5, wherein the elastic plate is connected to the rear plate surface of the clamping plate.
7. The rear buffer device of the engineering truck as claimed in claim 6, wherein a warning light is fixed on the elastic plate.
8. The rear buffering device of the engineering truck as claimed in any one of claims 1 to 3, wherein supporting wheels are respectively arranged on two sides of the buffering frame, and the supporting wheels are connected with the buffering frame through a height-adjusting component.
9. The rear buffer device of engineering truck as claimed in claim 8, wherein said height-adjusting assembly comprises:
the connecting block is fixedly connected to the buffer frame and provided with a through groove which is communicated along the vertical direction, and a fixing hole communicated with the through groove is formed in the side surface of the connecting block;
two ends of the adjusting rod respectively penetrate through the through grooves and can move up and down along the connecting block, and the lower end of the adjusting rod is rotatably connected with the supporting wheel; the adjusting rod is provided with a plurality of threaded holes at intervals along the up-down direction; and
a threaded fastener passing through the fixing hole and threadedly coupled in one of the threaded holes.
10. Crash-proof work vehicle, characterized in that it comprises a rear buffer device of a work vehicle according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022749914.1U CN213734876U (en) | 2020-11-24 | 2020-11-24 | Rear buffer device of engineering truck and anti-collision engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022749914.1U CN213734876U (en) | 2020-11-24 | 2020-11-24 | Rear buffer device of engineering truck and anti-collision engineering truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213734876U true CN213734876U (en) | 2021-07-20 |
Family
ID=76828630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022749914.1U Active CN213734876U (en) | 2020-11-24 | 2020-11-24 | Rear buffer device of engineering truck and anti-collision engineering truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213734876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941294A (en) * | 2022-06-28 | 2022-08-26 | 山东高速交建集团济南养护科技有限公司 | High-speed maintenance construction area safety protection system and device |
-
2020
- 2020-11-24 CN CN202022749914.1U patent/CN213734876U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114941294A (en) * | 2022-06-28 | 2022-08-26 | 山东高速交建集团济南养护科技有限公司 | High-speed maintenance construction area safety protection system and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213734876U (en) | Rear buffer device of engineering truck and anti-collision engineering truck | |
| CN112406752A (en) | Rear buffer device of engineering truck and anti-collision engineering truck | |
| CN2330546Y (en) | Resettable multi-stage buffer automobile bumper | |
| CN211032479U (en) | Racing car bumper with buffer mechanism | |
| CN200967455Y (en) | Automobile protecting board | |
| CN213007997U (en) | Trailer type anti-collision buffer device | |
| CN110606036B (en) | High anti-collision automobile with double girders | |
| CN2287101Y (en) | Vehicle safeguard against collision | |
| CN211252493U (en) | Front automobile frame impact buffering structure | |
| CN110239303B (en) | Semitrailer rear axle | |
| CN113276791A (en) | Front anti-collision beam of telescopic automobile | |
| CN207607311U (en) | A kind of central axle trailer coupling hitch | |
| CN201120874Y (en) | Folding type vehicle anti-collision machine | |
| CN220904902U (en) | Buffer gear of car bumper | |
| CN2265933Y (en) | Automotive anti-collision shock-damping device | |
| CN211844008U (en) | Hydraulic independent suspension device | |
| CN212766079U (en) | Practical training vehicle for electric control steering and suspension training | |
| CN216184910U (en) | Automobile chassis with anti-collision buffer structure | |
| CN210149421U (en) | Automobile rear auxiliary frame cross beam | |
| CN212766519U (en) | Tractor of concrete pumping device | |
| CN204340592U (en) | A kind of car shock mitigation system | |
| CN212914493U (en) | Bumper car not easy to topple | |
| CN218403438U (en) | Auxiliary lifting appliance device for pneumatic tool for automobile tire assembly | |
| CN217598263U (en) | Front suspension damping system of motor home | |
| CN219096637U (en) | Impact-resistant automobile bumper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |