CN220549134U

CN220549134U - General type pull-type vehicle-mounted anti-collision pad structure

Info

Publication number: CN220549134U
Application number: CN202320705285.3U
Authority: CN
Inventors: 李昌辉; 闫书明; 王琳; 邓宝; 梁美君; 杨福宇; 段美栋; 龚帅; 朱振祥; 马晴; 许思思; 刘思源
Original assignee: Beijing Hualuan Traffic Technology Co ltd; Shandong Hi Speed Co Ltd
Current assignee: Beijing Hualuan Traffic Technology Co ltd; Shandong Hi Speed Co Ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2024-03-01
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses a general type pull-type vehicle-mounted anti-collision pad structure which comprises a girder fixing device, a pull-type device and an energy absorption box, wherein the girder fixing device is fixedly connected with the tail end of a girder at the bottom of a vehicle, a groove-shaped buckle is arranged on the girder fixing device, the opening direction of the groove-shaped buckle faces to the rear of the vehicle, the pull-type device comprises a pull-type girder, a pin ring is arranged at the end position of one end of the pull-type girder, the pin ring and the groove-shaped buckle are mutually buckled and are hinged through a pin, the other end of the pull-type girder is fixedly connected with the energy absorption box, wheels are arranged at two sides of the pull-type girder, the height of the wheels is adjusted through a limiting member, and warning devices are arranged on the vehicle and the energy absorption box. The structure is good in energy absorption effect after collision, the energy absorption device has a turnover function, is convenient to anchor, detach and replace with a vehicle, effectively reduces the forward movement of the crashed vehicle, ensures the safety in front of the vehicle, meets the protection requirement of the existing maintenance vehicle, does not need to purchase an independent crashproof vehicle, and saves maintenance cost.

Description

General type pull-type vehicle-mounted anti-collision pad structure

Technical Field

The utility model belongs to the field of highway safety protection, and particularly relates to a general type pull-type vehicle-mounted anti-collision pad structure.

Background

The highway maintenance operation becomes important content of highway development, the maintenance workload is large, the construction operation is frequent, and the accident of normal running rear-end collision of the maintenance vehicle accounts for more than 60 percent according to the traffic accident data analysis of the maintenance construction operation. The construction and maintenance work including temporary fixed-point work, mobile construction work, greening sprinkling, road surface cleaning and the like often adopts a keep-through mode, the operation vehicle needs to occupy a driving lane, the common driving speed of the operation vehicle is only 40-50 km/h during mobile operation, and accidents of rear-end collision and rushing into a construction area of a rear-end vehicle are very easy to occur, so that the construction vehicle is particularly important for protecting personnel in the construction area and protecting normal operation vehicles.

Most of the protection modes adopted in the construction of the maintenance unit at the present stage comprise a cone barrel and a water code, but the cone barrel and the water code only have the warning effect and have no blocking and protection buffering effects; in order to pursue safety, some units intercept concrete piers on roads, and when the rear vehicles are in collision accidents while being inconvenient to install and disassemble, the rigid concrete can greatly compress the living space of passengers in the vehicles, so that irreparable injury is caused.

For the safety consideration of constructors, equipment and passing passengers, the rear anti-collision equipment is necessary for further reducing the traffic safety risk of operation, but road maintenance vehicles and engineering operation vehicles are various in types, different in specific situations, various in functions and meanwhile the uniformity of the rear anti-collision equipment installed on the operation vehicles should be considered.

At present, the research on the aspect is very few, no mature technical result exists, and the anti-collision vehicle product with high manufacturing cost, namely, the anti-collision vehicle with a protection type is always behind the maintenance vehicle, so that the protection requirement is met in the aspect of safety, the maintenance cost, personnel, oil cost and the like are doubled, and great loss is caused to the maintenance unit.

The vehicle is required to be installed at the tail part of the vehicle in the anti-collision pad, but the functional design of the tail part of some maintenance vehicles is overlapped with the space of the rear vehicle-mounted anti-collision pad, so that certain difficulty factors are brought to research personnel, and the normal use function of the vehicle is not influenced while the installation of the vehicle-mounted anti-collision pad is ensured.

In summary, according to highway maintenance actual demand, research and development from safety and economic angle, on-vehicle crashproof pad needs to protect maintenance vehicle operation, namely needs to satisfy the normal use function of vehicle promptly and also satisfy and block the buffer function, makes things convenient for maintenance personnel's installation and dismantlement. Therefore, according to the requirements of safety, economy, convenience in installation and the like of the vehicle-mounted anti-collision pad, the utility model provides a general trailing type vehicle-mounted anti-collision pad structure which is suitable for installation of various operation vehicles.

Disclosure of Invention

The utility model aims to provide a general type pull-type vehicle-mounted anti-collision pad structure so as to overcome the defects in the prior art.

The utility model is realized by the following technical scheme:

the utility model provides a general type trailer type vehicle-mounted crash pad structure, includes girder fixing device, trailer device, energy-absorbing box, girder fixing device is fixed with the girder tail end connection of vehicle bottom, set up the groove type buckle on the girder fixing device, groove type buckle opening direction is towards the vehicle rear, the trailer device includes the trailer roof beam, and the end position of trailer roof beam one end sets up the cotter ring, and the cotter ring detains into each other and articulates through the bolt with the groove type buckle, and the trailer roof beam other end and energy-absorbing box fixed connection, and the trailer roof beam both sides set up the wheel, and the wheel height passes through spacing component adjustment, set up warning device on vehicle and the energy-absorbing box.

Further, the connection mode of the girder fixing device is changed along with the different shapes of the tail part of the vehicle, and the shapes of the tail part of the vehicle are divided into an open type, a closed type and a semi-closed type:

when the shape of the tail part of the vehicle is open, the girder fixing device is directly connected with the girder at the bottom of the vehicle, and the energy absorption box is towed by the towing device at the rear;

when the shape of the tail part of the vehicle is closed, the vehicle comprises an extension beam and a sealing plate, the sealing plate is fixed with the tail part of the vehicle and covers the girder, the sealing plate is provided with a through hole, the extension beam penetrates through the through hole to fix the girder fixing device with the large Liang Chuanjie, one end of the extension beam is fixed with the girder, the other end of the extension beam is fixed with the girder fixing device, and the energy absorption box is dragged by the dragging device at the rear;

when the modeling of vehicle afterbody is semi-closed, namely there is the barrier at the vehicle afterbody, barrier and vehicle's afterbody are fixed, and can be in rear optional position, connect in series through displacement device between girder fixing device and the girder, displacement device one end is fixed with the girder, and the other end is fixed with girder fixing device, and the rear is again through pulling the energy-absorbing box of pulling of device.

Further, the limiting component comprises a sleeve and a limiting bolt, the sleeve is fixedly connected with the trailer beam, an L-shaped transmission shaft is arranged on the wheel, the top end of the L-shaped transmission shaft penetrates into the sleeve, the position is fixed through the limiting bolt, and the height of the wheel can be adjusted to enable the wheel to be in contact with or not in contact with a road surface when the vehicle runs.

Further, the trailer device further comprises two anti-collision beams, the two anti-collision beams are respectively arranged on two sides of the trailer beam, one end of each anti-collision beam is fixedly connected with the trailer device, the other end of each anti-collision beam is only propped against the girder fixing device and is not connected with the girder fixing device, the anti-collision beams are of an outer sleeve structure, the positions of the anti-collision beams can be fixed through the shifting bolts, when the anti-collision Liang Suhui sleeve is not propped against the girder fixing device, the trailer device can drag the energy-absorbing box to move along with the steering of the vehicle by taking the bolt as the axis, and when the anti-collision beams are pulled out of the sleeve and are propped against the girder fixing device, the trailer device can only drag the energy-absorbing box to move along the linear direction of the vehicle and cannot move along with the steering of the vehicle.

Further, girder fixing device includes vertical beam and crossbeam, and vertical beam and crossbeam constitute groove type structure, and vertical beam and girder fixed connection, groove type buckle setting are on the crossbeam.

Furthermore, the energy absorption box is filled with energy absorption components, the energy absorption box is formed by assembling thin plates, and chamfering treatment is carried out on two sides of the front side, so that the range of 0-40cm is achieved.

Further, the transverse width of the energy-absorbing box is smaller than that of the vehicle, and guide members are arranged on two sides of the energy-absorbing box.

Further, the guide member comprises a steel plate or a steel pipe, when the guide member is a steel plate, the guide member and the energy-absorbing box are assembled into a whole, when the guide member is a steel pipe, the steel pipe is in an arc shape protruding outwards in overlooking mode, and two ends of the steel pipe are respectively connected with the traction device and the energy-absorbing box.

Further, the vehicle comprises a backward-turning type sweeper, a side-turning type sweeper, a backward salt spraying type snow remover, a water spraying vehicle, a green planting pruning vehicle and an engineering maintenance vehicle.

Further, the energy absorbing component comprises a polygonal sheet frame, or foamed aluminum, or honeycomb aluminum, or a high polymer compound, or a spring, the energy absorbing box is made of aluminum, and the girder fixing device and the towing device are made of carbon steel or aluminum.

After the technical scheme is adopted, the utility model has the following beneficial effects:

(1) The deformation energy absorption effect is good after collision, and the front collision and offset collision and oblique collision requirements of the small bus can be effectively protected;

(2) Through overturn control, the vehicle-mounted anti-collision pad structure has an application function, and meanwhile, the opening function of the self carriage of the maintenance vehicle is not influenced;

(3) The anchoring structure is convenient to be connected with the vehicle girder, and the bolt structure is convenient to be installed, detached and replaced;

(4) The forward movement of the crashed vehicle is effectively reduced or even avoided, so that the safety of constructors and equipment in front of the vehicle is ensured;

(5) The protection requirement of the existing maintenance vehicle is met, the independent anti-collision vehicle is not required to be purchased, and the maintenance cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall side view of a vehicle crash pad of embodiment 1 of the utility model;

FIG. 2 is an overall plan view of a vehicle crash pad in accordance with embodiment 1 of the utility model;

FIG. 3 is a perspective view of a girder fixing device according to embodiment 1 of the present utility model;

FIG. 4 is a perspective view of the hitch of embodiment 1 of the present utility model;

FIG. 5 is a perspective view of an energy absorber box of embodiment 1 of the present utility model;

FIG. 6 is a schematic view showing the trailer in accordance with the embodiment 1 of the present utility model;

FIG. 7 is a schematic view of a spacing member according to embodiment 1 of the present utility model;

FIG. 8 is an overall side view of a vehicle crash pad according to embodiment 2 of the utility model;

FIG. 9 is an overall plan view of a vehicle crash pad according to embodiment 2 of the utility model;

FIG. 10 is a perspective view of a girder fixing device and an extension girder according to embodiment 2 of the present utility model;

FIG. 11 is an overall side view of a vehicle crash pad according to embodiment 3 of the utility model;

FIG. 12 is an overall plan view of a vehicle crash pad according to embodiment 3 of the utility model;

FIG. 13 is a schematic view of an impact beam according to embodiment 3 of the present utility model resting on a girder fixing device;

fig. 14 is a perspective view of a girder fixing device and a displacement device according to embodiment 3 of the present utility model.

FIG. 15 is an overall side view of a vehicle crash pad in accordance with embodiment 4 of the utility model;

FIG. 16 is an overall plan view of a vehicle crash pad in accordance with embodiment 4 of the utility model;

FIG. 17 is a schematic plan view of an impact beam according to embodiment 4 of the present utility model resting on a girder fixing device;

FIG. 18 is a perspective view of a girder attachment apparatus according to embodiment 4 of the present utility model;

FIG. 19 is an elevation view of a hitch of embodiment 4 of the present utility model;

FIG. 20 is a plan view of the hitch of embodiment 4 of the present utility model;

FIG. 21 is an elevation view of a spacing member of embodiment 4 of the present utility model;

FIG. 22 is a perspective view of a nose-end energy absorber of example 4 of the present utility model;

FIG. 23 is an overall side view of the vehicle crash pad of embodiment 5 of the utility model;

FIG. 24 is an overall plan view of a vehicle crash pad in accordance with embodiment 5 of the utility model;

FIG. 25 is a schematic plan view of an impact beam according to embodiment 5 of the present utility model resting on a girder fixing device;

the figures are labeled as follows:

1. a girder fixing device; 2. a hitch; 3. an energy absorption box; 4. a vehicle; 5. a girder; 6. a groove-shaped buckle; 7. towing the beam; 8. a pin ring; 9. a plug pin; 10. a wheel; 11. a limiting member; 12. a warning device; 13. an extension beam; 14. an obstacle; 15. a displacement device; 16. a sleeve; 17. a limit bolt; 18. an anti-collision beam; 19. a displacement bolt; 20. a vertical beam; 21. a cross beam; 22. an energy absorbing member; 23. a guide member; 24. a sealing plate; 25. a through hole; 26. an L-shaped transmission shaft; 27. a nose end energy absorber; 28. and a universal wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

Fig. 1 to 7 show a general type trailer type vehicle-mounted crash pad structure embodiment one, including girder fixing device 1, trailer device 2, energy-absorbing box 3, girder fixing device 1 is fixed with girder 5 tail end connection of vehicle 4 bottom, set up groove type buckle 6 on the girder fixing device 1, groove type buckle 6 opening direction towards vehicle 4 rear, trailer device 2 includes trailer beam 7, and the end position of trailer beam 7 one end sets up pin ring 8, and pin ring 8 detains each other and articulates through bolt 9 with groove type buckle 6, and the trailer beam 7 other end and 3 fixed connection of energy-absorbing box, and trailer beam 7 both sides set up wheel 10, and wheel 10 highly passes through spacing member 11 adjustment, set up warning device 12 on the vehicle 4, warning device 12 includes marker lamp, forbidden lamp, reflective membrane, guide lamp, signboard.

The connection mode of the girder fixing device 1 is changed according to the different shapes of the tail of the vehicle 4, when the shape of the tail of the vehicle 4 is open, the girder fixing device 1 is directly connected with the girder 5 at the bottom of the vehicle 4, and the energy absorption box 3 is towed by the towing device 2 at the rear.

The limiting member 11 comprises a sleeve 16 and a limiting bolt 17, the sleeve 16 is fixedly connected with the trailer beam 7, an L-shaped transmission shaft 26 is arranged on the wheel 10, the top end of the L-shaped transmission shaft 26 penetrates into the sleeve 16, the position of the L-shaped transmission shaft is fixed through the limiting bolt 17, and the height of the wheel 10 can be adjusted to enable the L-shaped transmission shaft to be in contact with or not in contact with a road surface when the vehicle 4 runs.

The trailer device 2 further comprises two anti-collision beams 18, the two anti-collision beams 18 are respectively arranged on two sides of the trailer beam 7, one end of each anti-collision beam 18 is fixedly connected with the trailer device 2, the other end of each anti-collision beam 18 is only propped against the girder fixing device 1 and is not connected, the anti-collision beams 18 are of an outer sleeve structure, the positions of the anti-collision beams can be fixed through the shifting bolts 19, when the anti-collision beams 18 retract into the sleeve and do not prop against the girder fixing device 1, the trailer device 2 can drag the energy-absorbing box 3 to move along the steering direction of the vehicle 4 by taking the bolts 9 as the axle center, and when the anti-collision beams 18 are pulled out of the sleeve and prop against the girder fixing device 1, the trailer device 2 can only drag the energy-absorbing box 3 to move along the linear direction of the vehicle 4 and cannot move along the steering direction of the vehicle 4.

The girder fixing device 1 comprises a vertical girder 20 and a cross girder 21, wherein the vertical girder 20 and the cross girder 21 form a groove structure, the vertical girder 20 is fixedly connected with the girder 5, and the groove buckle 6 is arranged on the cross girder 21.

The energy absorption box 3 is internally filled with an energy absorption member 22, the energy absorption box 3 is formed by assembling thin plates, the two sides of the front side are subjected to 10cm chamfering treatment, the front side is a plane, and a warning device 12 is arranged above the front side.

The lateral width of the crash box 3 is smaller than the lateral width of the vehicle 4.

The vehicle 4 is a sprinkler.

The energy-absorbing component 22 is polygonal sheet metal frame, the energy-absorbing component 22 includes riser and folded plate, the folded plate sets up between the riser, the folded plate forms the board of polygonal dog-ear through bending, riser and folded plate pass through the welding and assemble the subassembly that the cross-section shape is the octagon, transversely set up two rows of long octagon components and fill up in the energy-absorbing box 3, link into an entirety between every octagon component.

The energy-absorbing box 3 is made of aluminum, and the girder fixing device 1 and the pulling device 2 are made of carbon steel.

Fig. 8 to 10 show a general-type trailer-type vehicle-mounted crash pad structure according to a second embodiment, which comprises a girder fixing device 1, a trailer device 2 and an energy absorption box 3, and is characterized in that: the girder fixing device 1 is fixedly connected with the tail end of a girder 5 at the bottom of a vehicle 4, a groove-shaped buckle 6 is arranged on the girder fixing device 1, the opening direction of the groove-shaped buckle 6 faces the rear of the vehicle 4, the pulling device 2 comprises a pulling girder 7, a pin ring 8 is arranged at the end position of one end of the pulling girder 7, the pin ring 8 is mutually buckled with the groove-shaped buckle 6 and hinged through a bolt 9, the other end of the pulling girder 7 is fixedly connected with an energy absorption box 3, wheels 10 are arranged on two sides of the pulling girder 7, the height of the wheels 10 is adjusted through a limiting member 11, a warning device 12 is arranged on the vehicle 4, and the warning device 12 comprises a marker lamp, a forbidden lamp, a reflecting film, an induction lamp and a signpost.

The connection mode of the girder fixing device 1 is changed along with the different shapes of the tail part of the vehicle 4, when the shape of the tail part of the vehicle 4 is closed, the girder fixing device comprises an extension girder 13 and a sealing plate 24, the sealing plate 24 is fixed with the tail part of the vehicle 4 and covers the girder 5, the sealing plate 24 is provided with a through hole 25, the extension girder 13 passes through the through hole 25 to connect the girder fixing device 1 with the girder 5 in series, one end of the extension girder 13 is fixed with the girder 5, the other end is fixed with the girder fixing device 1, and the energy absorption box 3 is dragged by the trailing device 2 at the rear.

The transverse width of the energy-absorbing box 3 is smaller than that of the vehicle 4, guide members 23 are arranged on two sides of the energy-absorbing box 3, the guide members 23 are steel pipes, the shape of the steel pipes in overlooking is an arc protruding outwards, and two ends of the steel pipes are respectively connected with the traction device 2 and the energy-absorbing box 3.

The vehicle 4 is a sweeper side-turning type.

The energy-absorbing component 22 is made of honeycomb aluminum, chamfering treatment is carried out on two sides of the front end, the energy-absorbing box 3 is made of aluminum, and the girder fixing device 1 and the towing device 2 are made of carbon steel.

Fig. 11 to 14 show a third embodiment of a general trailer type vehicle-mounted crash pad structure, which includes a girder fixing device 1, a trailer device 2, and an energy absorption box 3, and is characterized in that: the girder fixing device 1 is fixedly connected with the tail end of a girder 5 at the bottom of a vehicle 4, a groove-shaped buckle 6 is arranged on the girder fixing device 1, the opening direction of the groove-shaped buckle 6 faces the rear of the vehicle 4, the pulling device 2 comprises a pulling girder 7, a pin ring 8 is arranged at the end position of one end of the pulling girder 7, the pin ring 8 is mutually buckled with the groove-shaped buckle 6 and hinged through a bolt 9, the other end of the pulling girder 7 is fixedly connected with an energy absorption box 3, wheels 10 are arranged on two sides of the pulling girder 7, the height of the wheels 10 is adjusted through a limiting member 11, a warning device 12 is arranged on the vehicle 4, and the warning device 12 comprises a marker lamp, a forbidden lamp, a reflecting film, an induction lamp and a signpost.

The connection mode of the girder fixing device 1 is changed along with the different shapes of the tail of the vehicle 4, when the shape of the tail of the vehicle 4 is semi-closed, namely, an obstacle 14 exists at the tail of the vehicle 4, the obstacle 14 is fixed with the tail of the vehicle 4 and can be arranged at any rear position, the girder fixing device 1 and the girder 5 are connected in series through a displacement device 15, one end of the displacement device 15 is fixed with the girder 5, the other end of the displacement device 15 is fixed with the girder fixing device 1, and the energy absorption box 3 is dragged by the trailing device 2 at the rear.

The vehicle 4 is a snow-removing vehicle and then is sprayed with salt.

The energy-absorbing component 22 is made of monolithic foamed aluminum, four rows of hollow octagons are vertically cut, two sides of the front end are subjected to 10cm chamfering treatment, the energy-absorbing box 3 is made of aluminum, and the girder fixing device 1 and the towing device 2 are made of carbon steel.

Fig. 15 to 22 show a general type trailer type vehicle-mounted crash pad structure embodiment IV, which comprises a girder fixing device 1, a trailer device 2, an energy absorption box 3 and a nose energy absorption piece 27, wherein the girder fixing device 1 is fixedly connected with the tail end of a girder 5 at the bottom of a vehicle 4, 2 groove-shaped buckles 6 are arranged on the girder fixing device 1, the opening direction of the groove-shaped buckles 6 faces the rear of the vehicle 4, the trailer device 2 comprises a trailer beam 7, a pin ring 8 capable of adjusting the height vertically is arranged at the end position of one end of the trailer beam 7, the pin ring 8 and the groove-shaped buckles 6 are mutually buckled and hinged through a bolt 9, the other end of the trailer beam 7 is fixedly connected with the energy absorption box 3, the energy absorption box 3 is provided with 2 telescopic sleeve structures, a warning device 12 is arranged on the vehicle 4 through tapping bolts, and the warning device 12 comprises a marker lamp, a forbidden lamp, a reflecting film, a guiding lamp and a marker plate.

The girder fixing device 1 is directly connected with a girder 5 at the bottom of a vehicle 4, and the energy absorption box 3 is towed by the towing device 2 at the rear.

The trailer device 2 further comprises two anti-collision beams 18, each anti-collision beam 18 is provided with an upper layer and a lower layer, the two layers are respectively arranged on two sides of the trailer beam 7, the inner side of the upper layer anti-collision beam 18 is connected with the vertical outer sleeve through a transverse pipe and the vertical outer sleeve, the trailer beam 7 is filled with rubber blocks in the vertical outer sleeve, one end of the anti-collision beam 18 is fixedly connected with two side vertical pipes and reinforcing ribs, angle steel welding is arranged at the top and the bottom of the vertical pipes, the trailer device 2 is connected with the energy absorption box 3 through angle steel, the other end of the anti-collision beam 2 is only propped against the girder fixing device 1 and is not connected, universal wheels 28 are arranged on two sides of the anti-collision beam 18, the height of the universal wheels 28 is adjusted through limiting members 11, each limiting member 11 comprises a sleeve 16 and a limiting bolt 17, the sleeve 16 is fixedly connected with the anti-collision beam 18, a movable sleeve is arranged on each universal wheel 28, the top of the movable sleeve is provided with a handle and penetrates into the sleeve 16, and is fixed at the position of the limiting bolt 17, and when a vehicle 4 runs, the height of the universal wheels 28 can be adjusted to be contacted with or not contacted with a road surface.

When the towing beam 7 extends out of the vertical outer sleeve, the anti-collision beam 18 does not prop against the girder fixing device 1, and the towing device 2 can drag the energy-absorbing box 3 to move along with the steering of the vehicle 4 by taking the bolt 9 as the axle center; when the energy-absorbing box 3 is collided by a vehicle, the trailer beam 7 is retracted into the vertical outer sleeve, the anti-collision beam 18 is propped against the girder fixing device 1, and the energy-absorbing box 3 is prevented from rotating angularly along the bolt 9 as the axis during the vehicle collision.

The girder fixing device 1 comprises a vertical girder 20 and a cross girder 21, wherein the vertical girder 20 and the cross girder 21 form a groove-shaped structure, reinforcing ribs are arranged at the intersecting positions, the vertical girder 20 is fixedly connected with the girder 5, the groove-shaped buckle 6 is arranged on the cross girder 21, and the reinforcing ribs are arranged at the intersecting positions.

An energy absorbing component 22 is arranged in the energy absorbing box 3, the energy absorbing box 3 is formed by assembling thin plates, and a warning device 12 is arranged above the energy absorbing box 3.

The front end of the energy-absorbing box 3 is provided with a nose end energy-absorbing piece 27, the nose end energy-absorbing piece 27 and the bottom angle steel are bolted through angle steel, 6 risers with a certain interval are arranged on the bottom angle steel, the bottom of the nose end energy-absorbing piece is provided with a wheel 10, an axle of the wheel 10 is welded with the risers on the bottom angle steel, and the front side of the nose end energy-absorbing piece 27 is provided with a reflecting film.

The nose energy absorber 27 is a polygonal sheet frame, a box with a back not covered is assembled through folded plates, chamfering treatment is carried out on two sides of the front end by 5cm multiplied by 10cm, one end of a bottom plate of the nose energy absorber 27 is provided with a rectangular groove for inserting a vertical plate on angle steel, and the other end of the bottom plate is provided with a semicircular groove for placing an axle.

The transverse width of the energy-absorbing box 3 is smaller than that of the vehicle 4, guide members 23 are arranged on two sides of the energy-absorbing box 3, the guide members 23 are steel pipes, two rows of the energy-absorbing box are arranged, the overlooking shape of the steel pipes is an arc shape protruding outwards, and two ends of the steel pipes are respectively connected with the traction device 2, the energy-absorbing box 3 and the nose energy-absorbing piece 27.

The vehicle 4 is an engineering maintenance vehicle.

The energy-absorbing component 22 is a polygonal sheet frame, and the energy-absorbing component 22 is formed by folded plates, is assembled into a cuboid component through welding, and is filled in the energy-absorbing box 3.

The energy absorption box 3 and the nose end energy absorption piece 27 are made of aluminum materials, and the girder fixing device 1, the towing device 2, the limiting component 11 and the angle steel are made of carbon steel.

Fig. 23 to 25 show a fifth embodiment of a general trailer type vehicle-mounted crash pad structure, which comprises a girder fixing device 1, a trailer device 2, energy-absorbing boxes 3 and nose energy-absorbing pieces 27, wherein the girder fixing device 1 is fixedly connected with the tail end of a girder 5 at the bottom of a vehicle 4, 2 groove-shaped buckles 6 are arranged on the girder fixing device 1, the opening direction of each groove-shaped buckle 6 faces the rear of the vehicle 4, the trailer device 2 comprises a trailer beam 7, a pin ring 8 capable of adjusting the height up and down is arranged at the end position of one end of the trailer beam 7, the pin ring 8 and the groove-shaped buckles 6 are mutually buckled and hinged through bolts 9, the other end of the trailer beam 7 is fixedly connected with the energy-absorbing boxes 3, 2 energy-absorbing boxes 3 are arranged, a connecting frame of a wheel 10 is arranged between the two energy-absorbing boxes 3 and is bolted, the connecting frame is welded and formed through a steel pipe, the wheel 10 is arranged at the bottom of the connecting frame, a connecting channel steel is welded on the wheel 10, the axle 10 is bolted with the connecting frame, the trailer beam 7 is of a telescopic sleeve structure, and the trailer beam 7 is fixed at the position through the position of the vehicle 4, and the warning device 12 and the warning light guide device comprises a warning sign lamp and a warning sign board and a warning sign device and a warning sign.

The trailer device 2 further comprises two anti-collision beams 18, the two anti-collision beams 18 are arranged, an upper layer and a lower layer are respectively arranged on two sides of the trailer beam 7, the inner side of the upper layer anti-collision beam 18 is connected with the vertical outer sleeve through a transverse pipe and the vertical outer sleeve, the trailer beam 7 is arranged in the vertical outer sleeve, one end of the anti-collision beam 18 is fixedly connected with two side vertical pipes and reinforcing ribs, the tops and the bottoms of the vertical pipes are provided with angle steel welding, the trailer device 2 is connected with the energy absorbing box 3 through the angle steel, the other end of the trailer device is only propped against the girder fixing device 1 and is not connected, universal wheels 28 are arranged in the anti-collision beam 18 on one side, the height of the universal wheels 28 is adjusted through limiting members 11, the limiting members 11 comprise sleeves 16 and limiting bolts 17, the sleeves 16 are fixedly connected with the anti-collision beam 18, the tops of the L-shaped transmission shafts 26 penetrate into the sleeves 16, the fixing positions of the limiting bolts 17, and the vehicle 4 can make the vehicle 4 contact or not contact with a road surface through adjusting the heights of the universal wheels 28.

A spring is arranged in the towing beam 7, when the spring is not compressed, the anti-collision beam 18 does not prop against the girder fixing device 1, and the towing device 2 can drag the energy absorption box 3 to move along with the steering of the vehicle 4 by taking the bolt 9 as the axle center; when the energy-absorbing box 3 is collided by a vehicle, the spring is compressed, the anti-collision beam 18 is propped against the girder fixing device 1, and the energy-absorbing box 3 is prevented from rotating along the bolt 9 as the axis during the collision of the vehicle.

The front end of the energy absorption box 3 is provided with a nose energy absorption piece 27, the nose energy absorption piece 27 is connected with the front end of the nose energy absorption piece 27 through angle steel in a bolting mode, the front side of the nose energy absorption piece 27 is provided with a reflecting film, and two sides of the nose energy absorption piece are provided with vehicle tail lamps which are connected through angle steel.

The nose energy absorbing piece 27 is a polygonal sheet frame, a box with the back not covered is assembled by folded plates, and chamfering treatment is carried out on two sides of the front end by 5cm multiplied by 10 cm.

The vehicle 4 is an engineering maintenance vehicle.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a general type trailer formula on-vehicle anticollision pad structure, includes girder fixing device (1), trailer device (2), energy-absorbing box (3), its characterized in that: the girder fixing device (1) is fixedly connected with the tail end of a girder (5) at the bottom of a vehicle (4), a groove-shaped buckle (6) is arranged on the girder fixing device (1), the opening direction of the groove-shaped buckle (6) faces the rear of the vehicle (4), the towing device (2) comprises a towing beam (7), a pin ring (8) is arranged at the end position of one end of the towing beam (7), the pin ring (8) is mutually buckled with the groove-shaped buckle (6) and hinged through a bolt (9), the other end of the towing beam (7) is fixedly connected with an energy absorption box (3), wheels (10) are arranged on two sides of the towing beam (7), the height of the wheels (10) is adjusted through a limiting member (11), and warning devices (12) are arranged on the vehicle (4) and the energy absorption box (3).

2. The universal trailer-type vehicle-mounted crash pad structure as recited in claim 1, wherein: the connection mode of the girder fixing device (1) is changed along with the different shapes of the tail part of the vehicle (4), and the shapes of the tail part of the vehicle (4) are divided into an open type, a closed type and a semi-closed type:

when the tail of the vehicle (4) is in an open shape, the girder fixing device (1) is directly connected with a girder (5) at the bottom of the vehicle (4), and the energy absorption box (3) is towed by the towing device (2) at the rear;

when the modeling of the tail part of the vehicle (4) is closed, the vehicle comprises an extension beam (13) and a sealing plate (24), the sealing plate (24) is fixed with the tail part of the vehicle (4) and covers the girder (5), the sealing plate (24) is provided with a through hole (25), the extension beam (13) penetrates through the through hole (25) to connect the girder fixing device (1) with the girder (5) in series, one end of the extension beam (13) is fixed with the girder (5), the other end is fixed with the girder fixing device (1), and the energy absorbing box (3) is dragged by the dragging device (2) at the rear;

when the modeling of vehicle (4) afterbody is semi-closed, namely there is barrier (14) at vehicle (4) afterbody, barrier (14) are fixed with the afterbody of vehicle (4), and can be at rear optional position, connect in series through displacement device (15) between girder fixing device (1) and girder (5), displacement device (15) one end is fixed with girder (5), and the other end is fixed with girder fixing device (1), and the rear rethread trailer device (2) pulls energy-absorbing box (3).

3. The universal trailer-type vehicle-mounted crash pad structure as recited in claim 1, wherein: the limiting component (11) comprises a sleeve (16) and a limiting bolt (17), the sleeve (16) is fixedly connected with the trailer beam (7), an L-shaped transmission shaft (26) is arranged on the wheel (10), the top end of the L-shaped transmission shaft (26) penetrates into the sleeve (16) and is fixed in position through the limiting bolt (17), and the height of the wheel (10) can be adjusted to enable the wheel to be in contact with or not in contact with a road surface when the vehicle (4) runs.

4. The universal trailer-type vehicle-mounted crash pad structure as recited in claim 1, wherein: the traction device (2) further comprises two anti-collision beams (18), the two anti-collision beams (18) are respectively arranged on two sides of the traction beam (7), one end of each anti-collision beam (18) is fixedly connected with the traction device (2), the other end of each anti-collision beam is only propped against the girder fixing device (1) and is not connected, each anti-collision beam (18) is of an outer sleeve structure, the positions of the anti-collision beams are fixed through the corresponding shifting bolts (19), when the anti-collision beams (18) are retracted into the sleeve and are not propped against the girder fixing device (1), the traction device (2) can drag the energy-absorbing box (3) to move along the steering direction of the vehicle (4) by taking the bolt (9) as the axis, and when the anti-collision beams (18) are pulled out of the sleeve and are propped against the girder fixing device (1), the traction device (2) can only drag the energy-absorbing box (3) to move along the linear direction of the vehicle (4) and cannot move along the steering direction of the vehicle (4).

5. The universal trailer-type vehicle-mounted crash pad structure as recited in claim 1, wherein: the girder fixing device (1) comprises a vertical girder (20) and a cross girder (21), the vertical girder (20) and the cross girder (21) form a groove structure, the vertical girder (20) is fixedly connected with the girder (5), and the groove buckle (6) is arranged on the cross girder (21).

6. The universal trailer-type vehicle-mounted crash pad structure as recited in claim 1, wherein: the energy absorption box (3) is internally filled with energy absorption components (22), the energy absorption box (3) is formed by assembling thin plates, and chamfering is carried out on the two sides of the front side, so that the range is 0-40cm.

7. The universal trailer-type vehicle-mounted crash pad structure as recited in claim 1, wherein: the transverse width of the energy absorption box (3) is smaller than that of the vehicle (4), and guide members (23) are arranged on two sides or the two sides of the energy absorption box (3).

8. The universal trailer-type vehicle bumper pad structure as defined in claim 7, wherein: the guide member (23) comprises a steel plate or a steel pipe, when the guide member (23) is a steel plate, the guide member and the energy-absorbing box (3) are assembled into a whole, when the guide member (23) is a steel pipe, the steel pipe is in an arc shape protruding outwards in overlooking mode, and two ends of the steel pipe are respectively connected with the traction device (2) and the energy-absorbing box (3).

9. The universal trailer-type vehicle-mounted crash pad structure as recited in claim 1, wherein: the vehicle (4) comprises a backward-turning type sweeper, a side-turning type sweeper, a backward salt spraying type snow remover, a water spraying vehicle, a green planting pruning vehicle and an engineering maintenance vehicle.

10. The universal trailer-type vehicle bumper pad structure as defined in claim 6, wherein: the energy-absorbing component (22) comprises a polygonal sheet frame, or foamed aluminum, or honeycomb aluminum, or a high polymer compound, or a spring, the energy-absorbing box (3) is made of aluminum, and the girder fixing device (1) and the pulling device (2) are made of carbon steel or aluminum.