CN216034227U - Rear underrun collision prevention device for truck - Google Patents
Rear underrun collision prevention device for truck Download PDFInfo
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- CN216034227U CN216034227U CN202122198274.4U CN202122198274U CN216034227U CN 216034227 U CN216034227 U CN 216034227U CN 202122198274 U CN202122198274 U CN 202122198274U CN 216034227 U CN216034227 U CN 216034227U
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Abstract
The utility model discloses a rear underrun collision prevention device for a truck, which comprises a truck frame and a rear protective guard installed at the tail part of the truck frame, wherein an anti-collision cross beam is arranged at the front side of the rear protective guard at the tail part of the truck frame, the anti-collision cross beam is transversely arranged along the truck frame and is connected with a moving rod, a motion control device capable of controlling the moving rod to move up and down is arranged on the truck frame, a detection device is arranged at the front side of the rear protective guard on the truck frame and is connected with the motion control device, and a supporting device is arranged between the anti-collision cross beam and the truck frame. The utility model can effectively reduce or prevent the small-sized vehicle from entering the bottom of the truck after rear-end collision, and protect the life safety of the rear-end collision vehicle and drivers and passengers thereof.
Description
Technical Field
The utility model relates to the field of trucks, in particular to a rear underrun collision prevention device of a truck.
Background
At present, the amount of the household car is increased, rear-end collision accidents of the household car and a medium-heavy truck frequently occur, and the household car is easy to cause great casualties in the sedan car when being drilled into the bottom of the truck. Although there are rear fenders at the rear of a large truck, they are relatively simple in construction, have limited fencing strength and area, and generally do not have any stops at the rear of the truck to improve truck throughput. When the truck is subjected to rear-end collision of a small car, the rear protection device is higher, effective protection cannot be provided, in the conventional vehicle bottom-drilling prevention device, one part has insufficient strength and rigidity in the high-speed impact process, and the other part has slow response, so that the small car is very easy to drill into the bottom of the truck after the small car is subjected to rear-end collision of a large truck.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the rear underrun collision prevention device for the truck can effectively reduce or prevent a small-sized vehicle from underrun into the bottom of the truck after rear-end collision and protect the life safety of the rear-end collision vehicle and drivers and passengers of the rear-end collision vehicle.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the rear underrun collision prevention device for the truck comprises a frame and a rear protective guard mounted at the tail of the frame, wherein an anti-collision cross beam is arranged on the front side, located on the rear protective guard, of the tail of the frame, the anti-collision cross beam is transversely arranged along the frame, the anti-collision cross beam is connected with a moving rod, a motion control device capable of controlling the moving rod to move up and down is arranged on the frame, a detection device is arranged on the front side, located on the rear protective guard, of the frame, the detection device is connected with the motion control device, and a supporting device is arranged between the anti-collision cross beam and the frame.
As an optimized technical scheme, the two ends of the anti-collision cross beam are respectively connected with the moving rods, the two moving rods are symmetrically arranged, and the frame is respectively provided with a motion control device corresponding to the two moving rods.
As an optimized technical scheme, the supporting device comprises supporting rods, wherein the two ends of the anti-collision cross beam are respectively hinged to the supporting rods extending out of the front side of the frame, and the front ends of the two supporting rods are respectively hinged to strip-shaped holes in the frame through pin shafts.
Preferably, the diameter of the upper end of the motion rod is larger than that of the lower end of the motion rod.
Preferably, the detection device is a sensor.
According to the preferable technical scheme, the motion control device comprises a control valve body, a sliding cavity is formed in the control valve body, the upper portion of the motion rod stretches into the sliding cavity in a sliding mode, a vertical spring is arranged between the top end of the motion rod and the sliding cavity, and a stopping device is arranged between the motion rod and the control valve body.
As a preferred technical scheme, the stop device comprises a ball slot arranged on the inner wall of the control valve body, a ball and a ball spring for pushing the ball to extend out of the ball slot are arranged in the ball slot, an electromagnet is arranged at the bottom of the ball slot, and the electromagnet is controlled by the inductor; and a groove matched with the ball is formed in the peripheral wall of the moving rod.
The truck rear underrun collision prevention device comprises a frame and a rear protective guard installed at the tail of the frame, wherein an anti-collision cross beam is arranged on the front side of the rear protective guard at the tail of the frame, the anti-collision cross beam is transversely arranged along the frame, the anti-collision cross beam is connected with a moving rod, a motion control device capable of controlling the moving rod to move up and down is arranged on the frame, a detection device is arranged on the front side of the rear protective guard on the frame and connected with the motion control device, and a supporting device is arranged between the anti-collision cross beam and the frame. According to the utility model, after the rear part of the vehicle is greatly impacted by the small vehicle, the rear protective guard deforms and is greatly displaced towards the front part of the vehicle frame, the detection device detects the displacement of the rear protective guard, the motion control device works to enable the motion rod to move downwards, and the anti-collision cross beam moves downwards along with the motion rod, so that the phenomenon that the small vehicle after rear-end collision digs into the bottom of the truck can be effectively reduced or prevented, and the life safety of the rear-end collision vehicle and drivers and passengers thereof is protected.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the crash cross beam of the present invention lowered;
FIG. 3 is a stowed schematic view of the bumper beam of the present invention;
FIG. 4 is a schematic view of the operation of the motion control apparatus of the present invention as the impact beam is lowered;
fig. 5 is a schematic view of the operation of the motion control device of the present invention with the bumper beam retracted.
In the figure: 1-a tire; 2, mounting a supporting seat; 21-strip-shaped holes; 3-supporting rods; 4-anti-collision cross beams; 5-control valve body; 6-rear guard rails; 7-a sensor; 8-a frame; 9-supporting the beam; 10-a motion bar; 11-an electromagnet; 12-a ball spring; 13-a ball bearing; 14-a vertical spring; 15-a sliding cavity; 16-ball slots; 17-grooves.
Detailed Description
The utility model is further illustrated below with reference to the figures and examples. In the following detailed description, certain exemplary embodiments of the present invention are described by way of illustration only. Needless to say, a person skilled in the art realizes that the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1, a truck rear underrun protection device includes a frame 8, a tire 1 mounted on the frame 8, and a rear guard rail 6 mounted at the rear of the frame 8, where the rear of the frame 8 is located at the front side of the rear guard rail 6, an anti-collision beam 4 is disposed along the transverse direction of the frame 8, the anti-collision beam 4 is connected to a moving rod 10, a movement control device capable of controlling the moving rod 10 to move up and down is disposed on the frame 8, a detection device is disposed on the frame 8 and located at the front side of the rear guard rail 6, the detection device is connected to control the movement control device, and a support device is disposed between the anti-collision beam 4 and the frame 8. The two ends of the anti-collision cross beam 4 are respectively connected with the moving rods 10, the two moving rods 10 are symmetrically arranged, and the frame 8 is respectively provided with a motion control device corresponding to the two moving rods 10, so that the small-sized vehicle is prevented from being stressed in a balanced manner after rear-end collision. It is preferable that the diameter of the upper end of the motion bar 10 is greater than that of the lower end thereof, so that the motion of the motion bar 10 is facilitated. The detection device is an inductor 7, the rear end of the detection device is close to the rear protective guard 6, and deformation and displacement of the rear protective guard 6 after being impacted are detected sensitively. The strutting arrangement includes the both ends of anticollision crossbeam 4 articulate respectively to bracing piece 3, two that the 8 front sides of frame are stretched out the front end of bracing piece 3 respectively through the round pin axle with bar hole 21 on the frame 8 is articulated, has improved the support dynamics of anticollision crossbeam 4, and bar hole 21 is when anticollision crossbeam 4 up-and-down motion simultaneously, and bracing piece 3 can be rotatory around bar hole 21, the swing of anticollision crossbeam 4 and bracing piece 3 of being convenient for. The two support rods 3 can be connected with a support beam 9, so that the strength is improved; and the bottom parts of the longitudinal beams at the two sides of the frame 8 can be respectively provided with the installation supporting seats 2, and the strip-shaped holes 21 are arranged on the installation supporting seats 2, so that the installation arrangement of the utility model is convenient. When the anti-collision beam 4 is in a normal contraction state, the anti-collision beam is flush with the rear protective guard 6 or is slightly lower than the rear protective guard 6, and when a large-sized vehicle collides with the rear part of the vehicle, the falling limit position of the anti-collision beam 4 can touch the ground.
As shown in fig. 4 and 5, the motion control device includes a control valve body 5, a sliding cavity 15 is provided on the control valve body 5, the upper portion of the motion rod 10 slides and extends into the sliding cavity 15, a vertical spring 14 is provided between the top end of the motion rod 10 and the sliding cavity 15, and a stop device is provided between the motion rod 10 and the control valve body 5. The stopping device comprises a ball slot 16 arranged on the inner wall of the control valve body 5, a ball 13 and a ball spring 12 for pushing the ball 13 to extend out of the ball slot 16 are arranged in the ball slot 16, an electromagnet 11 is arranged at the bottom of the ball slot 16, and the electromagnet 11 is controlled by the inductor 7; adopt usually the electro-magnet 11 passes through the solenoid valve and connects vehicle power supply, and the circular telegram and the outage of inductor 7 connection solenoid valve control electro-magnet 11 come control ball 13 motion, be provided with on the periphery wall of motion pole 10 with ball 13 complex recess 17, recess 17 can be for setting up the annular on the periphery wall of motion pole 10, do benefit to the cooperation with ball 13. And the control valve body 5 and the inductor 7 can be respectively arranged at the bottom of the longitudinal beams at the two sides of the frame 8, so that the installation and the arrangement are convenient.
As shown in fig. 3 and 5, the lower end of the anti-collision beam 4 is at a rest state, in which the height of the lower end of the anti-collision beam is consistent with the height of the lowest end of the rear protective guard 6 or slightly lower than the height of the lowest end of the rear protective guard 6, so as to ensure the maximum rear trafficability of the automobile. At this time, the electromagnet 11 in the control valve body 5 is deenergized and nonmagnetic, and the ball spring 12 is in an extended state to press the ball 13 into the groove 17 in the upper portion of the moving rod 10, thereby preventing the moving rod 10 from moving up and down. Because the motion rod 10 can not move, the vertical spring 14 is in a compressed state at the initial state, vertical downward acting force is always applied to the motion rod 10, and the anti-collision cross beam 4 connected with the motion rod 10 is positioned at the uppermost end.
As shown in fig. 2 and 4, after the rear part of the vehicle is impacted by a large and small vehicle, the rear protective guard 6 is firstly deformed after being impacted greatly, and is displaced greatly towards the front side of the vehicle frame 8, at the moment, the sensor 7 detects the displacement of the rear protective guard 6, the electromagnet 11 is triggered and controlled to be electrified and magnetized, the ball 13 is attracted and the ball spring 12 is compressed, so that the ball 13 is separated from the groove 17, the moving rod 10 is not limited by the ball 13 at the moment, and only moves downwards under the downward acting force of the vertical spring 14, the anti-collision cross beam 4 moves downwards along with the anti-collision cross beam, the maximum limit position can reach the ground, and at the moment, the problem of further bottom drilling at the rear part of the small vehicle rear-end collision truck can be effectively prevented through the quick movement of the anti-collision cross beam 4.
As described above, the embodiments of the present invention have been specifically described above, but the present invention is not limited thereto. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations, or substitutions may be made in accordance with design requirements or other factors while remaining within the scope of the appended claims and their equivalents.
Claims (7)
1. The utility model provides a rearmounted underrun collision prevention device of freight train, includes the frame and installs the rear protective guard at the frame afterbody, its characterized in that: the anti-collision protective guard is characterized in that an anti-collision cross beam is arranged on the front side, located on the rear protective guard, of the tail portion of the frame, the anti-collision cross beam is arranged along the transverse direction of the frame, the anti-collision cross beam is connected with a moving rod, a movement control device capable of controlling the moving rod to move up and down is arranged on the frame, a detection device is arranged on the front side, located on the rear protective guard, of the frame, the detection device is connected with the movement control device, and a supporting device is arranged between the anti-collision cross beam and the frame.
2. The truck rear underrun protection device as defined in claim 1, wherein: the two ends of the anti-collision cross beam are respectively connected with the moving rods, the two moving rods are symmetrically arranged, and the frame is respectively provided with a motion control device corresponding to the two moving rods.
3. The truck rear underrun protection device as defined in claim 1, wherein: the supporting device comprises supporting rods which extend out of the front side of the frame and are hinged to the two ends of the anti-collision cross beam respectively, and the front ends of the supporting rods are hinged to strip-shaped holes in the frame through pin shafts respectively.
4. The truck rear underrun protection device as defined in claim 1, wherein: the diameter of the upper end of the moving rod is larger than that of the lower end of the moving rod.
5. A rear underrun protection device for a freight car as defined in any one of claims 1 to 4, wherein: the detection device is a sensor.
6. The truck rear underrun protection as defined in claim 5, wherein: the motion control device comprises a control valve body, a sliding cavity is formed in the control valve body, the upper portion of the motion rod stretches into the sliding cavity in a sliding mode, a vertical spring is arranged between the top end of the motion rod and the sliding cavity, and a stopping device is arranged between the motion rod and the control valve body.
7. The truck rear underrun protection as defined in claim 6, wherein: the stop device comprises a ball groove hole arranged on the inner wall of the control valve body, a ball and a ball spring for pushing the ball to extend out of the ball groove hole are arranged in the ball groove hole, an electromagnet is arranged at the bottom of the ball groove hole, and the electromagnet is controlled by the inductor; and a groove matched with the ball is formed in the peripheral wall of the moving rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122198274.4U CN216034227U (en) | 2021-09-10 | 2021-09-10 | Rear underrun collision prevention device for truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122198274.4U CN216034227U (en) | 2021-09-10 | 2021-09-10 | Rear underrun collision prevention device for truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216034227U true CN216034227U (en) | 2022-03-15 |
Family
ID=80598227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122198274.4U Active CN216034227U (en) | 2021-09-10 | 2021-09-10 | Rear underrun collision prevention device for truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216034227U (en) |
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2021
- 2021-09-10 CN CN202122198274.4U patent/CN216034227U/en active Active
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