Adjacent vehicle anti-collision device for large road maintenance machinery
By introducing sliding connection and plug-in board connection mechanisms into the anti-collision device, the protection level is automatically adjusted according to the impact force size, and the elastic and plastic deformation plates absorb energy, the problem that traditional anti-collision devices cannot cope with different impact forces is solved, and the problem of the traditional anti-collision device being unable to cope with different impact forces is realized. Flexible protection and safety improvement.
Patent Information
- Application Number
- CN202411469620.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2024-12-06
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional anti-collision devices cannot flexibly deal with impact forces of different sizes, resulting in excessive reactions in small impacts that require frequent replacement, increasing the cost of use, and cannot provide sufficient protection during large impacts, resulting in damage to road maintenance equipment.
A collision avoidance device including fixed beam seat, secondary collision avoidance assembly and primary protection structure was designed. Through sliding connection and insertion board connection mechanism, the protection level is automatically adjusted according to the impact force, and the elastic elements are used for small impact. Buffered, plastic deformation plate absorbs energy during large impacts.
It realizes flexible protection under different impact forces, reduces maintenance costs, enhances the equipment's adaptability under different working conditions, and ensures the safety of vehicles and equipment.
Smart Images
Figure CN119078712A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of vehicle collision protection, and specifically refers to a large-scale road maintenance machinery adjacent vehicle collision prevention device. Background Art
[0002] When maintaining roads, multiple vehicles often work together, especially when large vehicles are operating on the road. There are often two or even three vehicles working on the road at the same time to complete the road maintenance work. When multiple large road maintenance machines are working, the vehicles are prone to various scratches and collisions with each other. The impact caused by the collision can easily cause damage to the road maintenance equipment.
[0003] Traditional anti-collision devices can often only handle a certain level of impact force, and are not flexible enough to respond to impact forces of different sizes. This may cause the anti-collision device to over-react in small collisions, resulting in the need to frequently replace the protective device, increasing the cost of use. In the event of a large collision, it cannot provide adequate protection, causing damage to road maintenance equipment.
[0004] Therefore, in order to match the responsiveness of the protective device with the impact force, provide different types of protection under different impact forces, ensure the protective effect while reducing the maintenance cost, a large road maintenance machinery adjacent vehicle anti-collision device is proposed. Summary of the invention
[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a large-scale road maintenance machinery adjacent vehicle anti-collision device, which effectively solves the problem that the current traditional anti-collision devices can only handle a certain level of impact force, and are not flexible enough to respond to impact forces of different sizes, which may cause the anti-collision device to over-react in small impacts, resulting in the need to frequently replace the protective device, increasing the cost of use, and failing to provide sufficient protection in large impacts, causing damage to the road maintenance equipment.
[0006] The technical solution adopted by the present invention is as follows: the present invention proposes a large-scale road maintenance machinery adjacent vehicle anti-collision device, comprising a fixed beam seat, a secondary anti-collision component, a primary protection structure and a collapsible deformation plate, wherein the secondary anti-collision component and the primary protection structure are both installed on the fixed beam seat; the secondary anti-collision component comprises a secondary cylinder and a plug plate, wherein the secondary cylinder is slidably connected to the fixed beam seat, wherein the plug plate is slidably connected to the secondary cylinder, wherein the primary protection structure comprises a primary cylinder and a second insert tooth, wherein the second insert tooth is fixedly connected to the primary cylinder; when the impact force is small, the primary protection structure is slidably connected to the secondary anti-collision component, and when the impact force is large, the plug plate and the second insert tooth are fixedly connected to the primary cylinder; The spline connection enables the secondary anti-collision component and the primary protection structure to form a whole. The crushing deformation plate is arranged between the secondary anti-collision component and the fixed beam seat. The primary protection structure and the secondary anti-collision component are slidably arranged. When encountering a smaller impact force, the elastic element between the primary protection structure and the secondary anti-collision component can play a buffering role and reduce the impact on the vehicle's main structure; when encountering a larger impact force, the secondary anti-collision component and the primary protection structure form a whole and jointly squeeze the crushing deformation plate, causing the crushing deformation plate to undergo plastic deformation, thereby absorbing more impact energy and ensuring the safety of vehicles and road maintenance equipment.
[0007] Furthermore, the secondary anti-collision assembly also includes a screw rod, a rotating shaft, an active hydraulic box and a driven hydraulic box. A bearing bracket is fixedly connected in the secondary cylinder, the rotating shaft is slidably and rotatably connected to the bearing bracket, the screw rod is fixedly connected to the rotating shaft, one end of the rotating shaft is fixedly connected to an active bevel gear, and the active bevel gear is rotatably connected to a fixed beam seat, the active hydraulic box is fixedly installed on the fixed beam seat, the fixed beam seat is rotatably connected with a threaded rod, the threaded rod is fixedly connected with a driven bevel gear, the driven bevel gear is meshed with the active bevel gear, the threaded rod is threadedly connected with a threaded block, the telescopic end of the active hydraulic box is fixedly connected with a moving block, the moving block is fixedly connected to the threaded block, a limited sliding groove is provided on the secondary cylinder, and the driven hydraulic box is fixedly installed on the limited sliding groove.
[0008] Furthermore, the plug plate is fixedly connected to the telescopic end of the driven hydraulic box, and the plug plate is slidably connected in the limiting sliding groove.
[0009] Furthermore, the primary protection structure also includes an impact head and an ear seat, the impact head is fixedly connected to the primary tube, the ear seat is fixedly connected to the outer circumference of the primary tube, a guide key is fixedly connected to the outer circumference of the primary tube, the primary tube is slidably connected to the secondary tube through the guide key, a screw block is fixedly connected to the secondary tube, and the screw block is threadedly connected to the screw rod.
[0010] Furthermore, the second spline is fixedly connected to the outer circumference of the primary cylinder, and the plug plate is fixedly connected to the first spline. When the primary cylinder does not move into the interior of the secondary cylinder, the plug plate is not connected to the second spline. When the primary cylinder moves into the interior of the secondary cylinder, the plug plate is engaged with the second spline through the first spline. The engagement mechanism between the plug plate and the second spline enables the anti-collision device to automatically adjust the protection level according to different impact forces. When the impact force is small, the plug plate is not connected to the second spline, and the anti-collision device is in an elastic protection state, and can be reset and restored after a collision, thereby reducing the replacement of the protection device; when the impact force is large, the plug plate is engaged with the second spline through the first spline, and the anti-collision device enters a collapsible protection state, and the protection capability is enhanced through plastic deformation, thereby effectively ensuring the safety of vehicles and equipment and enhancing the adaptability of the equipment under different working conditions.
[0011] Furthermore, a second spring is provided between the secondary cylinder and the fixed beam seat, a guide frame is fixedly connected to the fixed beam seat, a slider is fixedly connected to the outer circumference of the secondary cylinder, the slider is slidably connected to the guide frame, and a positioning plate is fixedly connected to the guide frame on the side away from the fixed beam seat.
[0012] Furthermore, a first spring is provided between the ear seat and the transmission ring, and two ends of the first spring are fixedly connected to the ear seat and the transmission ring respectively.
[0013] Furthermore, a mounting plate is fixedly connected to the fixed beam seat, the impact head penetrates through and is slidably connected to the mounting plate, and the mounting plate isolates the secondary anti-collision component and the primary protection structure from the outside.
[0014] Furthermore, two ends of the collapsible deformation plate are respectively fixedly connected to the fixed beam seat and the transmission ring, the collapsible deformation plate adopts a stacked corrugated plate structure, and the collapsible deformation plate adopts a plastically deformable material.
[0015] The beneficial effects achieved by the present invention using the above structure are as follows:
[0016] (1) In order to solve the problem that anti-collision devices can only handle a certain level of impact force and cannot provide different modes of protection under different impact forces, resulting in excessively high vehicle maintenance costs, the present invention provides a primary protection structure and a secondary anti-collision component, which can adopt different protection modes according to the magnitude of the impact force received by the vehicle, thereby reducing maintenance costs while ensuring the protection effect;
[0017] (2) The primary protection structure and the secondary anti-collision assembly are slidably arranged. When a small impact force is encountered, the elastic element between the primary protection structure and the secondary anti-collision assembly can play a buffering role to reduce the impact on the main structure of the vehicle; when a large impact force is encountered, the secondary anti-collision assembly and the primary protection structure form a whole and jointly squeeze the crushing deformation plate, causing the crushing deformation plate to undergo plastic deformation, thereby absorbing more impact energy and ensuring the safety of the vehicle and road maintenance equipment;
[0018] (3) In addition, the engagement mechanism between the plug plate and the second tooth enables the anti-collision device to automatically adjust the protection level according to different impact forces. When the impact force is small, the plug plate is not connected to the second tooth, and the anti-collision device is in an elastic protection state, which can be reset after the impact occurs, thereby reducing the replacement of the protection device. When the impact force is large, the plug plate is engaged with the second tooth through the first tooth, and the anti-collision device enters a collapsible protection state, enhancing the protection capability through plastic deformation, effectively ensuring the safety of vehicles and equipment, and enhancing the adaptability of the equipment under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A three-dimensional diagram of a large-scale road maintenance machinery adjacent vehicle anti-collision device proposed by the present invention;
[0020] Figure 2 This is a partial structural schematic diagram of a large-scale road maintenance machinery adjacent vehicle anti-collision device proposed by the present invention;
[0021] Figure 3 It is a schematic diagram of the primary protection structure, the secondary anti-collision components and the explosion structure;
[0022] Figure 4 It is a schematic diagram of the connection between the primary protection structure and the secondary anti-collision component;
[0023] Figure 5 It is a schematic diagram of the internal structure of the connection between the primary protection structure and the secondary anti-collision component;
[0024] Figure 6 This is a schematic diagram of the partial connection structure of a large-scale road maintenance machinery adjacent vehicle collision prevention device proposed by the present invention;
[0025] Figure 7 This is a schematic diagram of the internal structure of the secondary anti-collision component;
[0026] Figure 8 for Figure 7 The enlarged view of point A in the middle;
[0027] Fig. 9 It is a schematic diagram of the connection between the plug plate and the first-level cylinder.
[0028] Among them, 1. fixed beam seat; 2. mounting plate; 3. secondary anti-collision assembly; 4. primary protection structure; 5. crushing deformation plate; 6. guide frame; 7. slider; 8. positioning plate; 301. secondary cylinder; 302. transmission ring; 303. bearing bracket; 304. screw rod; 305. rotating shaft; 306. active bevel gear; 307. threaded rod; 308. driven bevel gear; 309. active hydraulic box; 310. moving block; 311. threaded block; 312. driven hydraulic box; 313. plug plate; 314. first insert; 315. limiting slide; 401. impact head; 402. ear seat; 403. primary cylinder; 404. guide key; 405. screw block; 406. second insert; 407. first spring; 9. second spring.
[0029] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0031] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.
[0032] like Figure 1-Figure 9As shown, the present invention proposes a large-scale road maintenance machinery adjacent vehicle anti-collision device, including a fixed beam seat 1, a secondary anti-collision component 3, a primary protection structure 4 and a collapsible deformation plate 5, the secondary anti-collision component 3 and the primary protection structure 4 are both installed on the fixed beam seat 1, the secondary anti-collision component 3 includes a secondary cylinder 301 and a plug plate 313, the secondary cylinder 301 is slidably connected to the fixed beam seat 1, the plug plate 313 is slidably connected to the secondary cylinder 301, the primary protection structure 4 includes a primary cylinder 403 and a second insert 406, the second insert 406 is fixedly connected to the primary cylinder 403, and when the impact force is small, the primary protection structure 4 is slidably connected to the secondary anti-collision component 3 , both the primary protection structure 4 and the secondary anti-collision component 3 are elastically deformed to buffer the impact force and thus protect the vehicle; when the impact force is large, the plug plate 313 and the second plug tooth 406 are engaged so that the secondary anti-collision component 3 and the primary protection structure 4 form a whole, and the secondary anti-collision component 3 and the primary protection structure 4 form a whole to jointly squeeze the crushing deformation plate 5, so that the crushing deformation plate 5 undergoes plastic deformation to absorb the energy generated by the impact; the crushing deformation plate 5 is arranged and installed between the secondary anti-collision component 3 and the fixed beam seat 1, and the crushing deformation plate 5 can undergo plastic deformation when the impact force is large to absorb the energy during the impact.
[0033] Among them, the secondary anti-collision component 3 also includes a screw rod 304, a rotating shaft 305, an active hydraulic box 309 and a driven hydraulic box 312. A bearing bracket 303 is fixedly connected in the secondary cylinder 301. The rotating shaft 305 is slidably and rotatably connected to the bearing bracket 303. A bearing is installed in the middle of the bearing bracket 303. A sleeve is installed in the bearing. A key is provided on the outer circumference of the rotating shaft 305. The rotating shaft 305 slides with the slide groove in the sleeve through the key, so that the rotating shaft 305 can rotate on the rotating shaft 305 and can also move along the axial direction of the rotating shaft 305. The screw rod 304 is fixedly connected to the rotating shaft 305. One end of the rotating shaft 305 is fixedly connected to the active bevel gear 306. The active bevel gear 306 is rotatably connected to the fixed beam seat 1. The active hydraulic box 309 is fixedly installed on the fixed beam seat 1. The fixed beam seat 1 is rotatably connected to a threaded rod 307. The threaded rod 307 is fixedly connected to a driven bevel gear 308. The gear 308 is meshed with the active bevel gear 306, and a threaded block 311 is threadedly connected to the threaded rod 307. The telescopic end of the active hydraulic box 309 is fixedly connected with a moving block 310, and the moving block 310 is fixedly connected to the threaded block 311. A limited sliding groove 315 is provided on the secondary cylinder 301, and the driven hydraulic box 312 is fixedly installed on the limited sliding groove 315. The plug plate 313 is fixedly connected to the telescopic end of the driven hydraulic box 312, and the plug plate 313 is slidably connected in the limited sliding groove 315. Hydraulic oil is introduced into the active hydraulic box 309 and the driven hydraulic box 312, and the active hydraulic box 309 and the driven hydraulic box 312 are connected by a hydraulic pipeline. When the moving block 310 moves toward the direction of the active hydraulic box 309, the hydraulic pressure in the active hydraulic box 309 is pushed into the driven hydraulic box 312 through the pipeline, so that the plug plate 313 can move along the limited sliding groove 315 toward the center of the moving block 310.
[0034] In addition, the primary protection structure 4 also includes an impact head 401 and an ear seat 402. The impact head 401 is fixedly connected to the primary cylinder 403. The outside of the impact head 401 is provided with an impact-resistant layer and a wear-resistant layer. The impact-resistant layer uses hard alloy to bear the impact force. The ear seat 402 is fixedly connected to the outer circumference of the primary cylinder 403. The outer circumference of the primary cylinder 403 is fixedly connected with a guide key 404. A corresponding keyway is provided in the secondary cylinder 301. The primary cylinder 403 is slidably connected to the secondary cylinder 301 through the guide key 404. A screw block 405 is fixedly connected to the secondary cylinder 301. The screw block 405 is threadedly connected to the screw rod 304. The screw block When 405 moves, it drives the screw rod 304 to rotate, and the second insert tooth 406 is fixedly connected to the outer circumference of the primary cylinder 403. The first insert tooth 314 is fixedly connected to the insert plate 313. The first insert tooth 314 and the second insert tooth 406 are multiple groups of tooth plates arranged at intervals. The teeth are evenly spaced, and a cone is used at one end where the two groups of teeth are close to each other, so as to facilitate the clamping and meshing of the two groups of tooth plates. When the primary cylinder 403 does not move into the interior of the secondary cylinder 301, the insert plate 313 is not connected to the second insert tooth 406. When the primary cylinder 403 moves into the interior of the secondary cylinder 301, the insert plate 313 is clamped with the second insert tooth 406 through the first insert tooth 314.
[0035] Among them, a second spring 9 is provided between the secondary cylinder 301 and the fixed beam seat 1, a guide frame 6 is fixedly connected to the fixed beam seat 1, a slider 7 is fixedly connected to the outer circumference of the secondary cylinder 301, the slider 7 is slidably connected to the guide frame 6, and a positioning plate 8 is fixedly connected to the guide frame 6 on the side away from the fixed beam seat 1. Under the elastic force of the second spring 9, the secondary cylinder 301 moves outward along the slide groove on the guide frame 6, and the slider 7 is pressed against the positioning plate 8, and then under the elastic force of the second spring 9, the secondary cylinder 301 is fixed on the two groups of guide frames 6. When the outer When the impact force is small, the secondary cylinder 301 does not move relative to the fixed beam seat 1. At this time, only the first spring 407 is compressed to buffer the impact force. When the impact force is large, the secondary anti-collision component 3 and the primary protection structure 4 form a whole. The impact force causes the second spring 9 to contract, so that the whole formed by the secondary anti-collision component 3 and the primary protection structure 4 moves along the slide groove in the guide frame 6, thereby compressing the crushing deformation plate 5. The crushing deformation plate 5 undergoes plastic deformation to absorb the impact energy, and the elastic force of the second spring 9 buffers the impact force.
[0036] In addition, a first spring 407 is provided between the ear seat 402 and the transmission ring 302, and the two ends of the first spring 407 are fixedly connected to the ear seat 402 and the transmission ring 302 respectively. When the impact head 401 is impacted, the primary cylinder 403 moves toward the secondary cylinder 301 and compresses the first spring 407. The elastic force of the first spring 407 can buffer the impact force. The elastic coefficient of the first spring 407 is much smaller than the elastic coefficient of the second spring 9. A mounting plate 2 is fixedly connected to the fixed beam seat 1, and the impact head 401 passes through and is slidably connected to the mounting plate 2. The mounting plate 2 isolates the secondary anti-collision component 3 and the primary protection structure 4 from the outside. The mounting plate 2 is made of thin-skinned material, and the two ends of the crushing deformation plate 5 are fixedly connected to the fixed beam seat 1 and the transmission ring 302 respectively. The crushing deformation plate 5 adopts a stacked corrugated plate structure, and the crushing deformation plate 5 adopts a plastic deformation material. In a specific embodiment, the crushing deformation plate 5 is made of aluminum alloy.
[0037] Specific use and working principle: when the impact head 401 is impacted, the impact force first pushes the primary cylinder 403 to move into the secondary cylinder 301, and the first spring 407 is compressed under the impact force, and then the elastic force of the first spring 407 buffers the impact force;
[0038] When the impact force is large, the primary cylinder 403 moves into the secondary cylinder 301, and the primary cylinder 403 moves with the screw block 405, and the screw block 405 drives the screw rod 304 to rotate, so that the active bevel gear 306 rotates. Under the meshing action of the active bevel gear 306 and the driven bevel gear 308, the threaded rod 307 also rotates, and the threaded rod 307 drives the threaded block 311 and the moving block 310 to move toward the direction close to the active hydraulic box 309, pushing the hydraulic oil in the active hydraulic box 309 into the driven hydraulic box 312, so that the plug plate 313 moves along the limiting slide groove 315 toward the center of the secondary cylinder 301. The center of the vehicle moves, and the second tooth 406 on the primary cylinder 403 moves to the opening of the limiting slot 315, and then the first tooth 314 on the plug plate 313 is inserted into the second tooth 406, and the plug plate 313 is engaged with the second tooth 406, so that the secondary cylinder 301 and the primary cylinder 403 form a fixed relationship. At this time, the impact force drives the secondary anti-collision component 3 and the primary protection structure 4 to move along the slot in the guide frame 6, and compresses the second spring 9 and the crushing deformation plate 5 at the same time. The second spring 9 buffers the impact force, and the crushing deformation plate 5 absorbs the impact energy, thereby realizing the protection of the vehicle.
[0039] The above is the overall workflow of the present invention.
[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
[0042] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.
Claims
1. A large-scale road maintenance machinery adjacent vehicle anti-collision device, characterized in that: It comprises a fixed beam seat (1), a secondary anti-collision component (3), a primary protection structure (4) and a crushing deformation plate (5), wherein the secondary anti-collision component (3) and the primary protection structure (4) are both mounted on the fixed beam seat (1); The secondary anti-collision assembly (3) comprises a secondary cylinder (301) and a plug plate (313), wherein the secondary cylinder (301) is slidably connected to the fixed beam seat (1), and the plug plate (313) is slidably connected to the secondary cylinder (301), and the primary protection structure (4) comprises a primary cylinder (403) and a second insert tooth (406), and the second insert tooth (406) is fixedly connected to the primary cylinder (403); When the impact force is small, the primary protection structure (4) is slidably connected to the secondary anti-collision component (3), and when the impact force is large, the insert plate (313) and the second insert tooth (406) are engaged so that the secondary anti-collision component (3) and the primary protection structure (4) form a whole; The collapsible deformation plate (5) is arranged and installed between the secondary anti-collision component (3) and the fixed beam seat (1).
2. The large-scale road maintenance machinery adjacent vehicle anti-collision device according to claim 1 is characterized in that: The secondary anti-collision assembly (3) further comprises a screw rod (304), a rotating shaft (305), an active hydraulic box (309) and a driven hydraulic box (312); a bearing support (303) is fixedly connected inside the secondary cylinder (301); the rotating shaft (305) is slidably and rotatably connected to the bearing support (303); the screw rod (304) is fixedly connected to the rotating shaft (305); one end of the rotating shaft (305) is fixedly connected to an active bevel gear (306); the active bevel gear (306) is rotatably connected to the fixed beam seat (1); the active hydraulic box (309) is fixedly mounted on the fixed beam seat (1); The fixed beam seat (1) is rotatably connected with a threaded rod (307), the threaded rod (307) is fixedly connected with a driven bevel gear (308), the driven bevel gear (308) is meshingly connected with the driving bevel gear (306), the threaded rod (307) is threadedly connected with a threaded block (311), the telescopic end of the active hydraulic box (309) is fixedly connected with a moving block (310), the moving block (310) is fixedly connected with the threaded block (311), the secondary cylinder (301) is provided with a limiting slide groove (315), and the driven hydraulic box (312) is fixedly mounted on the limiting slide groove (315).
3. The large-scale road maintenance machinery adjacent vehicle anti-collision device according to claim 2 is characterized in that: The inserting plate (313) is fixedly connected to the telescopic end of the driven hydraulic box (312), and the inserting plate (313) is slidably connected in the limiting sliding groove (315).
4. The large-scale road maintenance machinery adjacent vehicle anti-collision device according to claim 3 is characterized in that: The primary protection structure (4) further comprises an impact head (401) and an ear seat (402); the impact head (401) is fixedly connected to the primary cylinder (403); the ear seat (402) is fixedly connected to the outer circumference of the primary cylinder (403); a guide key (404) is fixedly connected to the outer circumference of the primary cylinder (403); the primary cylinder (403) is slidably connected to the secondary cylinder (301) via the guide key (404); a screw block (405) is fixedly connected to the secondary cylinder (301); and the screw block (405) is threadedly connected to the screw rod (304).
5. The large-scale road maintenance machinery adjacent vehicle anti-collision device according to claim 4 is characterized in that: The second inserting tooth (406) is fixedly connected to the outer circumference of the primary cylinder (403), and the inserting plate (313) is fixedly connected to the first inserting tooth (314). When the primary cylinder (403) does not move into the interior of the secondary cylinder (301), the inserting plate (313) and the second inserting tooth (406) are not connected. When the primary cylinder (403) moves into the interior of the secondary cylinder (301), the inserting plate (313) is engaged with the second inserting tooth (406) via the first inserting tooth (314).
6. The large-scale road maintenance machinery adjacent vehicle anti-collision device according to claim 5, characterized in that: A second spring (9) is provided between the secondary cylinder (301) and the fixed beam seat (1); a guide frame (6) is fixedly connected to the fixed beam seat (1); a slider (7) is fixedly connected to the outer circumference of the secondary cylinder (301); the slider (7) is slidably connected to the guide frame (6); and a positioning plate (8) is fixedly connected to the guide frame (6) on a side away from the fixed beam seat (1).
7. The large-scale road maintenance machinery adjacent vehicle anti-collision device according to claim 6 is characterized in that: A first spring (407) is provided between the ear seat (402) and the transmission ring (302), and two ends of the first spring (407) are respectively fixedly connected to the ear seat (402) and the transmission ring (302).
8. The large-scale road maintenance machinery adjacent vehicle anti-collision device according to claim 7 is characterized in that: The fixed beam seat (1) is fixedly connected to a mounting plate (2), the impact head (401) penetrates through and is slidably connected to the mounting plate (2), and the mounting plate (2) isolates the secondary anti-collision component (3) and the primary protection structure (4) from the outside.
9. The large-scale road maintenance machinery adjacent vehicle anti-collision device according to claim 8, characterized in that: The two ends of the collapsible deformation plate (5) are respectively fixedly connected to the fixed beam seat (1) and the transmission ring (302); the collapsible deformation plate (5) adopts a stacked corrugated plate structure; and the collapsible deformation plate (5) adopts a plastically deformable material.