Safety anti-collision device of pilotless automobile

By introducing adjustment and anti-collision mechanisms into the anti-collision devices of autonomous vehicles, the problem of the applicability of fixed anti-collision bar length has been solved, achieving adaptability to different vehicle widths and force buffering effect, and reducing maintenance costs.

CN223949109UActive Publication Date: 2026-02-27SICHUAN OUWANG AUTONOMOUS DRIVING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520737533.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-02-27
Estimated Expiration
2035-04-18

AI Technical Summary

Technical Problem

The existing collision avoidance devices for autonomous vehicles have a fixed length of bumper, which means they are only applicable to vehicles with a body width that is the same as the length of the bumper, limiting their applicability.

Method used

A safety anti-collision device was designed, which includes a bottom frame, a bumper, an adjustment mechanism, and an anti-collision mechanism. The length of the bumper and extension bar can be adjusted by the adjustment mechanism to adapt to different vehicle widths, and the force buffer is achieved by the anti-collision mechanism.

Benefits of technology

It expands the applicability of anti-collision devices, reduces damage to vehicles from collisions, lowers maintenance costs, and provides effective protection during collisions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a safe anti-collision device of a pilotless automobile, belongs to the technical field of automobile collision prevention, and aims to solve the problems that the length of an anti-collision bar body in an anti-collision device in the prior art is fixed, so that the anti-collision device is only suitable for the pilotless automobile with the automobile body width equal to the length of the anti-collision bar body, and the safety of the pilotless automobile is influenced. And the application range of the anti-collision device is small. Comprising a bottom frame, bases are fixedly connected to the left end and the right end of the rear side of the bottom frame, an anti-collision bar is arranged at the front end of the bottom frame, an anti-collision mechanism is arranged at the front end of the bottom frame, and adjusting mechanisms are arranged at the left end and the right end of the anti-collision bar and comprise extension bars connected to the left end and the right end in the anti-collision bar; the upper side and the lower side of the end, close to the center of the bumper, of the extension bar are fixedly connected with sliding blocks, the upper side of the sliding block at the upper end of the extension bar is fixedly connected with a threaded rod, the outer side of the threaded rod is connected with a pressing ring, a round rod is connected into the extension bar, and the outer end of the round rod is rotationally connected with a roller.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile anti -collision, specifically related to a safe anti -collision device of unmanned vehicle. BACKGROUND

[0002] With the development of computer technology, environmental perception technology, more and more automatic control technology is applied to the car, unmanned vehicle has become a big change in the automobile industry, unmanned technology is mainly through laser ranging, vehicle sensing system and other technologies to perceive the surrounding road environment and automatic planning driving route, and use camera to judge the object and position appearing in front, but the car in the process of driving, because its fast speed inevitably occurs collision accident, and the existing unmanned vehicle usually uses safe anti -collision structure to prevent collision.

[0003] Such as patent CN221718488U discloses a safe anti -collision device of unmanned vehicle, moves operation is driven by the impact of the lever body, so that the lever body, support frame, connecting rod, fixed disc, stabilizer, first spring, fixed rod, slider, second spring, connecting frame, connecting block mutual cooperation operation, realize the effect of stress buffering, can block the impact object at the same time buffering operation to impact force, and then reach the effect of improving the use effect of safe anti -collision structure.

[0004] But the length of the anti -collision lever body in the anti -collision device is fixed, so that the anti -collision device is only applicable to the unmanned vehicle with the same body width and anti -collision lever body length, resulting in the small application range of the anti -collision device. UTILITY MODEL CONTENTS

[0005] (1) technical problem to be solved

[0006] In view of the defects of prior art, the utility model aims at providing a safe anti -collision device of unmanned vehicle, which aims at solving the problem that the length of the anti -collision lever body in the anti -collision device is fixed, so that the anti -collision device is only applicable to the unmanned vehicle with the same body width and anti -collision lever body length, resulting in the small application range of the anti -collision device.

[0007] (2) technical scheme

[0008] In order to solve the above technical problems, the utility model provides a safe anticollision device of unmanned vehicle, including bottom frame, the left and right sides of the rear side of bottom frame are fixedly connected with base, the front end of bottom frame is provided with anticollision pole, the front end of bottom frame is provided with anticollision mechanism, the left and right sides of anticollision pole are provided with adjusting mechanism, and adjusting mechanism includes the extension pole that is connected to the left and right sides of anticollision pole inside, the upper and lower sides of the one end of extension pole close to anticollision pole center are fixedly connected with sliding block, the upper side of sliding block on the upper end of extension pole is fixedly connected with threaded rod, the outside of threaded rod is connected with compression ring, the inside of extension pole is connected with round rod, the outer end of round rod is rotatably connected with gyro wheel.

[0009] Further, the anticollision mechanism includes a connecting frame fixedly connected to the middle position of the rear side of the anticollision pole, a rotating rod connected to the inner side of the connecting frame, adjusting blocks provided at the left and right ends inside the bottom frame, a circular shaft connected to the inner ends of the rotating rod, a nut connected to the outer side of the circular shaft, springs fixedly connected to the left and right ends inside the bottom frame, and a damping rod installed at the springs at the left and right ends inside the bottom frame.

[0010] Further, the left and right ends of the anticollision pole are provided with through grooves, and the upper and lower sides of the through grooves are provided with sliding grooves. The upper and lower sides of the extension pole are slidably connected to the inner side of the through groove, and the outer side of the sliding block is slidably connected to the inner side of the sliding groove.

[0011] Further, the upper end of the anticollision pole is provided with a sliding channel, the outer side of the threaded rod is slidably connected to the inner side of the sliding channel, the inner side of the compression ring is provided with internal threads, the outer side of the threaded rod is threadedly connected to the inner side of the compression ring, and the lower side of the compression ring is in abutment with the upper side of the anticollision pole.

[0012] Further, the end of the extension pole away from the sliding block is provided with a recess, the upper and lower sides of the round rod are fixedly connected to the upper and lower ends of the inner side of the recess, and the upper and lower sides of the gyro wheel are slidably connected to the upper and lower ends of the inner side of the recess.

[0013] Further, the front end of the adjusting block is provided with a rotating groove, the left and right ends of the rear part of the connecting frame, the front and rear ends of the inner part of the rotating rod, and the front end of the adjusting block are provided with rotating holes, the outer sides of the upper and lower ends of the circular shaft are provided with external threads, the outer side of the circular shaft is rotatably connected to the inner side of the rotating hole, the outer side of the nut is threadedly connected to the upper and lower ends of the outer side of the circular shaft, the adjacent side of the nut at the upper and lower ends of the circular shaft at the front end of the rotating rod is slidably connected to the upper and lower sides of the connecting frame, and the adjacent side of the nut at the upper and lower ends of the circular shaft at the rear end of the rotating rod is slidably connected to the upper and lower sides of the front end of the adjusting block.

[0014] Further, the end of the spring and the damping rod away from the left and right ends of the bottom frame is fixedly connected to the outer side of the adjusting block.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the utility model lie in:

[0017] The utility model discloses a adjusting mechanism is set, along with the inner side of the through groove sliding extension pole, and the slider will be located in the inner side of the sliding groove and slide, and the threaded rod is located in the inner side of the slide and slides, after the extension pole is slid to the position required in the inner side of the through groove, then the compression ring is threaded to the outer side of the threaded rod, until the downside of the compression ring is abutted to the upside of the anti -collision pole, the extension pole can be fixed to the inside of the anti -collision pole again, so that the length of the anti -collision pole and the extension pole whole can be adjusted through the adjustment of the position of the extension pole at the left and right ends of the anti -collision pole inside, so as to adjust the anti -collision pole and the extension pole whole to the corresponding width when the anti -collision device is installed to different unmanned vehicles, and the application range of the anti -collision device is improved.

[0018] The utility model sets up the anti -collision mechanism, when the anti -collision pole is impacted, the anti -collision pole is extruded to the rotating rod under the pressure, makes the spring be extruded, realizes the effect of stress buffering, reduces the damage of the impact to the unmanned vehicle ontology. DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment or prior art of the present application, the drawings needed in the embodiment or prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0020] Figure 1 It is the main body structure schematic diagram of the utility model;

[0021] Figure 2 It is the main body structure schematic diagram of the utility model;

[0022] Figure 3 It is the main body structure schematic diagram of the utility model;

[0023] Figure 4 It is the main body structure schematic diagram of the utility model;

[0024] Figure 5 It is the main body structure schematic diagram of the utility model;

[0025] The marks in the drawings are: 1, bottom frame;2, base;3, anti -collision pole;401, connecting frame;402, rotating rod;403, adjusting block;404, round shaft;405, nut;406, spring;407, damping rod;501, extension pole;502, slider;503, threaded rod;504, compression ring;505, round rod;506, roller. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to 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 fall within the scope of the utility model.

[0027] The specific embodiment is a safety anti-collision device of an unmanned vehicle, and a structural schematic diagram thereof is shown in the figure Figures 1 to 3 The safety anti-collision device comprises a bottom frame 1, a base 2 fixedly connected to the left and right ends of the rear side of the bottom frame 1, an anti-collision rod 3 arranged at the front end of the bottom frame 1, an anti-collision mechanism arranged at the front end of the bottom frame 1, the anti-collision mechanism comprising a connecting frame 401 fixedly connected to the middle position of the rear side of the anti-collision rod 3, a rotating rod 402 connected to the inner side of the connecting frame 401, adjusting blocks 403 arranged at the left and right ends inside the bottom frame 1, circular shafts 404 connected to the inner ends of the rotating rod 402, nuts 405 connected to the outer side of the circular shafts 404, a rotating groove arranged at the front end of the adjusting blocks 403, rotating holes arranged at the left and right ends of the rear part of the connecting frame 401, the front and rear ends inside the rotating rod 402 and the front end of the adjusting blocks 403, external threads arranged at the outer sides of the upper and lower ends of the circular shafts 404, the outer side of the circular shafts 404 rotatably connected to the inner side of the rotating hole, the outer side of the nuts 405 threadedly connected to the upper and lower ends of the outer side of the circular shafts 404, the adjacent side of the nuts 405 at the upper and lower ends of the circular shafts 404 at the front end of the rotating rod 402 slidably connected to the upper and lower sides of the connecting frame 401, and the adjacent side of the nuts 405 at the upper and lower ends of the circular shafts 404 at the rear end of the rotating rod 402 slidably connected to the upper and lower sides of the front end of the adjusting blocks 403, so that the bottom frame 1, the rotating rod 402 and the anti-collision rod 3 can be disassembled through the circular shafts 404 and the nuts 405, so that when a part of them is damaged, the anti-collision device can be repaired by disassembling and replacing the damaged part, and the maintenance cost of the anti-collision device is reduced.

[0028] The left and right ends of the inner side of the bottom frame 1 are fixedly connected to springs 406, damping rods 407 are arranged at the springs 406 at the left and right ends of the inner side of the bottom frame 1, and the ends of the springs 406 and the damping rods 407 away from the left and right ends of the bottom frame 1 are fixedly connected to the outer side of the adjusting blocks 403, so that when the anti-collision rod 3 is impacted, the anti-collision rod 3 is pressed to extrude the rotating rod 402, the springs 406 are extruded, the effect of stress buffering is achieved, and the damage of the impact to the unmanned vehicle body is reduced.

[0029] Cooperation Figure 4 and Figure 5The left and right ends of the anti-collision rod 3 are provided with adjusting mechanisms, and the adjusting mechanisms comprise extension rods 501 connected to the left and right ends inside the anti-collision rod 3. The left and right ends of the anti-collision rod 3 are provided with through grooves, and the upper and lower sides of the through grooves are provided with sliding grooves. The upper and lower sides of the extension rod 501 are slidably connected to the inner sides of the through grooves. The outer sides of the sliding blocks 502 are slidably connected to the inner sides of the sliding grooves. The upper and lower sides of the end of the extension rod 501 close to the center of the anti-collision rod 3 are fixedly connected with the sliding blocks 502. The upper side of the sliding block 502 on the upper end of the extension rod 501 is fixedly connected with a threaded rod 503. The outer side of the threaded rod 503 is connected with a pressing ring 504. The upper end of the anti-collision rod 3 is provided with a sliding channel. The outer side of the threaded rod 503 is slidably connected to the inner side of the sliding channel. The inner side of the pressing ring 504 is provided with an internal thread. The outer side of the threaded rod 503 is threadedly connected to the inner side of the pressing ring 504. The lower side of the pressing ring 504 abuts against the upper side of the anti-collision rod 3. The extension rod 501 is slid along the inner side of the through groove. At the same time, the sliding block 502 is slid in the sliding groove. The threaded rod 503 is slid in the sliding channel. After the extension rod 501 is slid to the required position in the through groove, the pressing ring 504 is threadedly connected to the outer side of the threaded rod 503 until the lower side of the pressing ring 504 abuts against the upper side of the anti-collision rod 3. Then, the extension rod 501 is fixedly connected to the inside of the anti-collision rod 3. Thus, the length of the anti-collision rod 3 and the extension rod 501 can be adjusted by adjusting the positions of the extension rods 501 at the left and right ends inside the anti-collision rod 3. When the anti-collision device is installed on different unmanned vehicles, the anti-collision rod 3 and the extension rod 501 can be adjusted to the corresponding width, thereby improving the application range of the anti-collision device.

[0030] The extension rod 501 is internally connected with a round rod 505. The outer end of the round rod 505 is rotatably connected with a roller 506. The end of the extension rod 501 away from the sliding block 502 is provided with a groove. The upper and lower sides of the round rod 505 are fixedly connected to the upper and lower ends inside the groove. The upper and lower sides of the roller 506 are slidably connected to the upper and lower ends inside the groove. Thus, when the unmanned vehicle accidentally contacts a wall, the roller 506 at the outer end of the extension rod 501 will first contact the wall surface and roll on the wall surface, thereby reducing the friction with the wall surface and reducing the influence of the vehicle contacting the wall surface on the vehicle, thereby protecting the vehicle.

[0031] Working principle: When the anti-collision device is used, the base 2 at the rear end of the bottom frame 1 is installed on the front end of the vehicle body. Then, the extension rod 501 is slid along the inner side of the through groove. After the extension rod 501 is slid to the required position in the through groove, the length of the anti-collision rod 3 and the extension rod 501 is the same as the width of the vehicle body. Then, the pressing ring 504 is threadedly connected to the outer side of the threaded rod 503 until the lower side of the pressing ring 504 abuts against the upper side of the anti-collision rod 3. Then, the extension rod 501 is fixedly connected to the inside of the anti-collision rod 3. Thus, the anti-collision rod 3 and the extension rod 501 can protect the unmanned vehicle from collision.

[0032] All the technical features in the embodiment can be freely combined according to actual needs.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A safety anti-collision device for an unmanned vehicle, comprising a bottom frame (1), characterized in that, The rear side of the bottom frame (1) is fixedly connected with a base (2), the front end of the bottom frame (1) is provided with a bumper bar (3), the front end of the bottom frame (1) is provided with a bumper mechanism, the left and right ends of the bumper bar (3) are provided with an adjusting mechanism, and the adjusting mechanism comprises an extension bar (501) connected to the left and right ends inside the bumper bar (3), the upper and lower sides of one end of the extension bar (501) close to the center of the bumper bar (3) are fixedly connected with a sliding block (502), the upper side of the sliding block (502) on the upper end of the extension bar (501) is fixedly connected with a threaded rod (503), the outer side of the threaded rod (503) is connected with a compression ring (504), the inside of the extension bar (501) is connected with a round rod (505), and the outer end of the round rod (505) is rotatably connected with a roller (506).

2. The safety anti-collision device of an unmanned vehicle according to claim 1, wherein, The bumper mechanism comprises a connecting frame (401) fixedly connected to the middle position of the rear side of the bumper bar (3), the inner side of the connecting frame (401) is connected with a rotating rod (402), the left and right ends inside the bottom frame (1) are provided with an adjusting block (403), the inside of the rotating rod (402) is connected with a round shaft (404), the outer side of the round shaft (404) is connected with a nut (405), the left and right ends of the inner side of the bottom frame (1) are fixedly connected with a spring (406), and the spring (406) at the left and right ends of the inner side of the bottom frame (1) is mounted with a damping rod (407).

3. The safety anti-collision device of an unmanned vehicle according to claim 1, wherein, The left and right ends of the bumper bar (3) are provided with a through groove, and the upper and lower sides of the through groove are provided with a sliding groove, the upper and lower sides of the extension bar (501) are slidably connected with the inner side of the through groove, and the outer side of the sliding block (502) is slidably connected with the inner side of the sliding groove.

4. The safety anti-collision device of an unmanned vehicle according to claim 1, wherein, The upper end of the bumper bar (3) is provided with a slide, the outer side of the threaded rod (503) is slidably connected with the inner side of the slide, the inner side of the compression ring (504) is provided with an internal thread, the outer side of the threaded rod (503) is threadedly connected with the inner side of the compression ring (504), and the lower side of the compression ring (504) abuts against the upper side of the bumper bar (3).

5. The safety anti-collision device of an unmanned vehicle according to claim 1, wherein, The end of the extension bar (501) away from the sliding block (502) is provided with a groove, the upper and lower sides of the round rod (505) are fixedly connected with the upper and lower ends inside the groove, and the upper and lower sides of the roller (506) are slidably connected with the upper and lower ends inside the groove.

6. The safety anti-collision device of an unmanned vehicle according to claim 2, wherein, The front end of the adjusting block (403) is provided with a rotating groove, the left and right ends of the rear part of the connecting frame (401), the front and rear ends inside the rotating rod (402) and the front end of the adjusting block (403) are provided with rotating holes, the outer sides of the upper and lower ends of the circular shaft (404) are provided with external threads, the outer side of the circular shaft (404) is rotationally connected with the inner side of the rotating hole, the outer side of the nut (405) is threadedly connected with the upper and lower ends of the outer side of the circular shaft (404), the adjacent side of the nut (405) on the upper and lower ends of the circular shaft (404) of the front end of the rotating rod (402) is slidingly connected with the upper and lower sides of the connecting frame (401), and the adjacent side of the nut (405) on the upper and lower ends of the circular shaft (404) of the rear end of the rotating rod (402) is slidingly connected with the upper and lower sides of the front end of the adjusting block (403).

7. The safety anti-collision device of an unmanned vehicle according to claim 2, wherein, The spring (406) and the damping rod (407) are fixedly connected with the outer side of the adjusting block (403) at one end away from the left and right ends of the bottom frame (1).