Anti-collision damping device of expressway maintenance vehicle

Abstract

An anti-collision damping device of an expressway maintenance vehicle comprises a slope block used for reducing the speed of a collision vehicle, and the front end of the slope block is provided with a groove; the speed brake is rotationally connected to the groove; the supporting frame is arranged at the top of the slope block; the operation shaft is rotationally connected to the supporting frame; the buffer mechanism is arranged at the upper part of the operating shaft and inclines downwards; the energy absorption mechanism is arranged at the rear end of the slope block; and the connecting block is arranged at the rear end of the energy absorption mechanism and is rotationally connected with the maintenance truck. When expressway maintenance is carried out, the device is placed behind a maintenance vehicle, damage caused by collision of vehicles on an expressway to the maintenance vehicle is prevented, the front end of the slope block is an inclined face and faces one side of a coming vehicle, after the coming vehicle is impacted, the vehicle head is turned upwards by the inclined face of the front end of the slope block, direct collision to the maintenance vehicle is reduced, and the maintenance vehicle is prevented from being damaged. The damage to the maintenance vehicle is reduced; the vehicle head obliquely and upwards impacts the rubber head and the spring damper to share part of impact force upwards, impact in the horizontal direction is reduced, and losses borne by the maintenance vehicle are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of maintenance vehicle protection, more specifically, relates to a highway maintenance vehicle anti-collision damping device. BACKGROUND

[0002] The quality of highway will gradually decrease, and maintenance and repair measures must be taken after the highway is put into use, and continuous updating and improvement is needed, and the maintenance vehicle is needed to maintain the pavement of the highway during maintenance, and the maintenance vehicle is prone to rear-end accidents due to fast lane speed.

[0003] The existing highway maintenance vehicle anti-collision damping device adopts a direct horizontal collision mode to protect the maintenance vehicle, but the speed of the highway vehicle is too fast, the impact force is large, and the maintenance vehicle is likely to be damaged after direct horizontal impact, and the protection effect is poor. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a highway maintenance vehicle anti-collision damping device that can lift the vehicle head upward to reduce horizontal impact.

[0005] A highway maintenance vehicle anti-collision damping device comprises a slope block for reducing the speed of a collision vehicle, a recess is arranged at the front end of the slope block, a speed reduction plate is rotatably connected to the recess, a support frame is arranged at the top of the slope block, an operating shaft is rotatably connected to the support frame, a buffer mechanism is arranged on the upper part of the operating shaft and inclined downward, an energy absorption mechanism is arranged at the rear end of the slope block, and a connecting block is arranged at the rear end of the energy absorption mechanism and rotatably connected to the maintenance vehicle.

[0006] Further, the front end of the slope block is a slope, the rear end of the slope block is a horizontal surface, and the recess is arranged on the slope.

[0007] Further, a rotating shaft is arranged on the side wall of the speed reduction plate, the rotating shaft is rotatably connected to the recess, and a gap is arranged between the bottom surface of the speed reduction plate and the top surface of the recess.

[0008] Further, a plurality of protrusions are arranged on the upper surface of the speed reduction plate at equal intervals.

[0009] Further, the support frame comprises a support, a front stop rod and a rear stop rod, the support supports the operating shaft, the front stop rod is arranged in front of the support, the rear stop rod is arranged behind the support, and the distance between the front stop rod and the rear stop rod is greater than the width of the operating shaft.

[0010] Further, the side edge of the operating shaft is rotatably connected to the side wall of the rear stop rod, and a rubber strip is arranged on the top of the rear stop rod.

[0011] Furthermore, the front stop lever is provided with a blocking plate, which can contact the operating shaft.

[0012] Furthermore, the buffer mechanism includes a spring damper and a rubber head, the rear end of the spring damper is fixedly connected to the front end of the operating shaft, and the rubber head is located at the front end of the spring damper.

[0013] Furthermore, the energy absorption mechanism includes an energy absorption rod and two counter-impact boxes. The two ends of the energy absorption rod are respectively connected to the two sides of the rear end of the slope block and the two sides of the front end of the connecting block. One counter-impact box is fixed to the middle of the rear end of the slope block, and the other counter-impact box is located at the middle of the front end of the connecting block.

[0014] Furthermore, the hedging box contains several buffer rings.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] ① When performing highway maintenance, place this device behind the maintenance vehicle to prevent damage caused by collisions with vehicles on the highway. The front of the ramp is a slope, and the front of the ramp faces the oncoming vehicle. When an oncoming vehicle impacts the vehicle, the front of the vehicle is turned upward by the slope at the front of the ramp, reducing direct collisions with the maintenance vehicle and thus reducing damage to the maintenance vehicle.

[0017] ② The upward impact of the vehicle's front end against the rubber head and spring damper can distribute some of the impact force upwards, reducing the horizontal impact and thus minimizing the damage to the maintenance vehicle. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of a collision avoidance and shock absorption device for highway maintenance vehicles.

[0020] Figure 2 This is a schematic diagram of a highway maintenance vehicle's anti-collision and shock absorption device from another perspective.

[0021] In the diagram: 1. Slope block; 11. Groove; 2. Speed ​​reduction plate; 21. Rotating shaft; 22. Protrusion; 3. Support frame; 31. Bracket; 32. Front stop bar; 321. Barrier plate; 33. Rear stop bar; 331. Rubber strip; 332. Extension plate; 4. Operating shaft; 41. Rotating shaft; 5. Buffer mechanism; 51. Spring damper; 52. Rubber head; 6. Energy absorption mechanism; 61. Energy absorption rod; 62. Counter-impact box; 621. Buffer ring; 7. Connecting block; 71. Connecting shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] As shown in Figure 1 , Figure 2 A kind of expressway maintenance vehicle anti-collision damping device, including: for the slope block 1 of reducing speed of colliding car, recess 11 is arranged at the front end of slope block 1;Rotatably connected in recess 11 is deceleration plate 2;Support frame 3 is arranged at the top of slope block 1;Rotatably connected in support frame 3 is operating shaft 4;Buffer mechanism 5 is arranged at the upper portion of operating shaft 4, buffer mechanism 5 is inclined downward;Energy-absorbing mechanism 6 is arranged at the rear end of slope block 1;And connecting block 7 is arranged at the rear end of energy-absorbing mechanism 6, connecting block 7 is rotatably connected with maintenance vehicle.

[0024] When expressway maintenance is carried out, the device is placed behind the maintenance vehicle, to prevent the vehicle on the expressway from colliding with the maintenance vehicle and causing damage, the front end of slope block 1 is inclined, and the front end of slope block 1 is directed towards the side of the oncoming vehicle, when the oncoming vehicle impacts, the vehicle head is turned upwards by the inclined surface of the front end of slope block 1, reducing direct collision with the maintenance vehicle, and further reducing damage to the maintenance vehicle. The rear end of slope block 1 is horizontal, support frame 3 is arranged on the rear end of slope block 1, and the horizontal surface facilitates installation and adjustment of support frame 3, and recess 11 is arranged on the inclined surface.

[0025] The sidewall of deceleration plate 2 is provided with rotating shaft 21, rotating shaft 21 is rotatably connected to recess 11, rotating shaft 21 is located at the upper middle portion of the sidewall of deceleration plate 2, and a gap is arranged between the bottom surface of deceleration plate 2 and the top surface of recess 11, when the deceleration plate 2 is not crushed by the vehicle, the bottom of deceleration plate 2 is attached to the top surface of recess 11, at this time, the vehicle enters deceleration plate 2, when the vehicle continues to move forward, the upper portion of deceleration plate 2 is pressed to contact recess 11, at this time, the vehicle head is turned downward, preventing the vehicle from flying off the slope.

[0026] The upper surface of deceleration plate 2 is provided with a plurality of protrusions 22 distributed at equal intervals, after the vehicle enters deceleration plate 2, the wheels move on protrusions 22, and protrusions 22 cooperate with the rotation of deceleration plate 2 and the upward slope to quickly brake the vehicle that fails to stop, reducing the impact force and further reducing the loss.

[0027] The support frame 3 is used to limit the movement of the operating shaft 4, and the support frame 3 comprises a support 31, a front stop rod 32 and a rear stop rod 33, the support 31 supports the operating shaft 4, the bottom of the operating shaft 4 rotates along the top of the support 31, the support 31 supports the operating shaft 4 to reduce the load of the rear stop rod 33, the front stop rod 32 is arranged in front of the support 31, the rear stop rod 33 is arranged behind the support 31, the distance between the front stop rod 32 and the rear stop rod 33 is greater than the width of the operating shaft 4, the front stop rod 32 and the rear stop rod 33 limit the rotating angle of the operating shaft 4, and after the vehicle is impacted, the operating shaft 4 buffers part of the impact force through the rotating angle.

[0028] The side of the operating shaft 4 is provided with a rotating shaft 41, the side wall of the rear stop rod 33 is provided with an extension piece 332, the rotating shaft 41 is rotationally connected to the extension piece 332 of the side wall of the rear stop rod 33, the extension piece 332 limits the operating shaft 4 to only rotate, the top of the rear stop rod 33 is provided with a rubber strip 331, when the operating shaft 4 is impacted and quickly rotates backward, the rubber strip 331 first contacts the operating shaft 4, the rubber strip 331 has a buffering performance, and the rubber strip 331 buffers the impact at this time and reduces the impact loss of the operating shaft 4.

[0029] The front stop rod 32 is provided with a blocking piece 321, when the device is normally placed, the front end of the operating shaft 4 contacts the blocking piece 321, the blocking piece 321 limits the operating shaft 4 from rotating downward, and ensures that the buffering mechanism 5 faces the impact direction of the vehicle head.

[0030] The buffering mechanism 5 comprises spring dampers 51 and rubber heads 52, the rear end of the spring damper 51 is fixedly connected to the front end of the operating shaft 4, and the rubber head 52 is arranged at the front end of the spring damper 51. The spring damper 51 and the rubber head 52 are arranged at the front end of the operating shaft 4 at equal intervals in a horizontal direction, when the vehicle is impacted, the operating shaft 4 is first driven to rotate backward, the operating shaft 4 contacts the rubber strip 331, the vehicle head drives the rubber head 52 to compress and move backward to drive the spring damper 51 to contract, the spring damper 51 and the rubber head 52 buffer part of the impact energy and reduce the impact loss.

[0031] The upward impact of the vehicle head on the rubber head 52 and the spring damper 51 can share part of the impact force upward, reduce the impact in the horizontal direction, and further reduce the loss of the maintenance vehicle.

[0032] The energy absorption mechanism 6 comprises an energy absorption rod 61 and two pairs of impact boxes 62, the two ends of the energy absorption rod 61 are connected to the two sides of the rear end of the slope block 1 and the two sides of the front end of the connecting block 7 respectively, one pair of impact boxes 62 is fixed to the middle of the rear end of the slope block 1, and the other pair of impact boxes 62 is arranged at the middle of the front end of the connecting block 7. When the vehicle inclines and collides with the rubber head 52 on the deceleration plate 2, a backward force will also drive the slope block 1 to slide towards the maintenance vehicle, at this time, the slope block 1 drives the energy absorption rod 61 to bend and absorb energy and buffer, so as to reduce the horizontal impact, when the slope block 1 moves, the two pairs of impact boxes 62 are in contact, a plurality of buffer rings 621 are arranged in the impact boxes 62, the buffer rings 621 can be selected from waste tires, and the impact of the impact boxes 62 colliding with each other also buffers part of the impact force, so as to further reduce the horizontal impact.

[0033] The connecting block 7 is provided with connecting shafts 71 on the two sides, the connecting shafts 71 are connected with the maintenance vehicle, the maintenance vehicle controls the rotation of the connecting shafts 71, when the maintenance vehicle normally drives, the connecting shafts 71 are rotated to make the slope block 1 upwardly store the device.

[0034] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A highway maintenance vehicle anti-collision shock absorbing device, characterized in that, The utility model relates to a slope block (1) for reducing the speed of a collision vehicle, the slope block (1) being provided with a groove (11) at the front end thereof; a speed reduction plate (2) being rotatably connected to the groove (11); a support frame (3) being provided on the top of the slope block (1); an operating shaft (4) being rotatably connected to the support frame (3); a buffer mechanism (5) being provided on the upper part of the operating shaft (4) and being inclined downward; an energy absorption mechanism (6) being provided at the rear end of the slope block (1); and a connecting block (7) being provided at the rear end of the energy absorption mechanism (6) and being rotatably connected to a maintenance vehicle. The front end of the slope block (1) is a slope, the rear end of the slope block (1) is a horizontal surface, and the groove (11) is provided on the slope. The side wall of the speed reduction plate (2) is provided with a rotating shaft (21), the rotating shaft (21) is rotatably connected to the groove (11), and a gap is provided between the bottom surface of the speed reduction plate (2) and the top surface of the groove (11). The upper surface of the speed reduction plate (2) is provided with a plurality of protrusions (22) distributed at equal intervals. The support frame (3) comprises a support (31), a front stop rod (32) and a rear stop rod (33), the support (31) supports the operating shaft (4), the front stop rod (32) is provided in front of the support (31), the rear stop rod (33) is provided behind the support (31), and the distance between the front stop rod (32) and the rear stop rod (33) is greater than the width of the operating shaft (4). The side edge of the operating shaft (4) is rotatably connected to the side wall of the rear stop rod (33), and the top of the rear stop rod (33) is provided with a rubber strip (331). The front stop rod (32) is provided with a blocking piece (321), and the blocking piece (321) can contact the operating shaft (4). The buffer mechanism (5) comprises a spring damper (51) and a rubber head (52), the rear end of the spring damper (51) is fixedly connected to the front end of the operating shaft (4), and the rubber head (52) is provided at the front end of the spring damper (51).

2. The crash avoidance and shock absorption device for a highway maintenance vehicle of claim 1, wherein: The energy absorption mechanism (6) comprises an energy absorption rod (61) and two pairs of impact boxes (62), the two ends of the energy absorption rod (61) are connected to the rear ends of the slope block (1) and the front ends of the connecting block (7) respectively, one pair of impact boxes (62) is fixedly connected to the middle part of the rear end of the slope block (1), and the other pair of impact boxes (62) is provided in the middle part of the front end of the connecting block (7).

3. A crash cushion for use with a highway maintenance vehicle as defined in claim 2, wherein: A plurality of buffer rings (621) are placed in the impact boxes (62).

4. A crash cushion for use with a highway maintenance vehicle as defined in claim 3, wherein: ​ 5. A crash cushion for use with a highway maintenance vehicle as defined in claim 4, wherein: ​ 6. A crash cushion for use with a highway maintenance vehicle as defined in claim 5, wherein: ​ 7. A crash cushion for use with a highway maintenance vehicle as defined in claim 6, wherein: ​ 8. A crash cushion for use with a highway maintenance vehicle according to claim 7, wherein: ​ 9. A crash cushion for use with a highway maintenance vehicle according to claim 8, wherein: ​ 10. A crash cushion for use with a highway maintenance vehicle according to claim 9, wherein: ​

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