A reinforced front-end collision protection structure for special vehicles

Abstract

This utility model discloses a reinforced front-end anti-collision structure for special vehicles, specifically relating to the technical field of front-end anti-collision structures. It includes a main frame and a front frame, with the front frame fixed to the left side of the main frame. Liftable protective net assemblies are installed at both ends of the front frame. The lifting protective net assembly includes a lifting frame, a fixed rod, a first motor, a lead screw, a screw sleeve, a sliding groove, a slider, a lifting rod, and a protective net body. By incorporating the protective net body, when the first motor drives the lead screw to rotate, the screw sleeve engages with the lead screw and can move downwards along the lead screw. With the assistance of the slider, the lifting rod can be driven downwards. During this process, the protective net body located inside the fixed rod and the lifting rod can be deployed. The protective net body provides the first line of protection, reducing damage during low-speed contact, thus achieving the protective function of this reinforced front-end anti-collision structure during low-speed contact.

Description

Technical Field

[0001] This utility model relates to the field of vehicle front anti-collision structure technology, specifically a reinforced vehicle front anti-collision structure for special vehicles. Background Technology

[0002] Special vehicles refer to vehicles whose external dimensions, weight, etc. exceed the design vehicle limits and vehicles with special purposes. They are specially made or modified and equipped with fixed devices and equipment. Their main function is to carry people or transport goods. The front anti-collision structure is used to transmit the impact force in the event of a serious collision and to protect the vehicle body and some parts of the vehicle from damage in the event of a minor collision.

[0003] The front-end collision protection structure of a vehicle mostly uses rigid components, commonly made of steel, fiberglass or aluminum alloy. These materials can still cause significant damage to the target object in the event of a low-speed collision.

[0004] Therefore, a reinforced frontal collision protection structure for special vehicles is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a reinforced front-end collision protection structure for special vehicles, in order to solve the problem mentioned in the background art that the reinforced front-end collision protection structure causes significant damage to the target object in the event of a collision.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reinforced front anti-collision structure for special vehicles, comprising a main frame and a front frame. The front frame is fixed to the left side of the main frame, and lifting protective net assemblies are provided at both ends of the front frame. The lifting protective net assembly includes a lifting frame, a fixed rod, a first motor, a lead screw, a screw sleeve, a slide groove, a slider, a lifting rod, and a protective net body. Lifting frames are installed at both ends of the front frame. A fixed rod is installed at the top left of the fixed rod. A first motor is installed at the top inside the lifting frame. A lead screw is installed at the bottom of the first motor. A screw sleeve is threaded to the outside of the lead screw. A slide groove is provided on the left side surface of the lifting frame. A slider is movably installed inside the slide groove. The right side of the slider is fixedly connected to the left side of the screw sleeve. A lifting rod is installed on the left side of the slider. The protective net body is installed between the fixed rod and the lifting rod.

[0007] As a further technical solution of this utility model, the protective net body has two sets installed between the fixed rod and the lifting rod, and the two sets of the protective net body are distributed in parallel.

[0008] As a further technical solution of this utility model, a through groove is provided on the left side surface of the front frame, a second motor is installed at the bottom of the through groove, a rotating shaft is installed at the top of the second motor, and a mesh chain is installed on the outer side wall of the rotating shaft.

[0009] As a further technical solution of this utility model, two sets of rotating shafts are movably installed inside the through groove, and the two sets of rotating shafts are symmetrically distributed.

[0010] As a further technical solution of this utility model, a plug is fixed at the top of the main frame, a slot is provided through the top of the plug, an anti-collision plate is inserted inside the slot, a fixing hole is provided on the left side surface of the plug, a fixing bolt is provided inside the fixing hole, and a positioning groove is provided at the bottom inside the main frame.

[0011] As a further technical solution of this utility model, several slots are provided through the top of the insertion platform, and the several slots are symmetrically distributed.

[0012] As a further technical solution of this utility model, the inside of the fixing hole is provided with an internal thread, and the surface of the fixing bolt is provided with an external thread.

[0013] As a further technical solution of this utility model, the cross-section of the positioning groove is larger than the cross-section of the anti-collision plate, and the bottom end of the anti-collision plate extends into the interior of the positioning groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a protective net body, when the first motor drives the lead screw to rotate, the screw sleeve cooperates with the lead screw and can move downward along the lead screw. With the assistance of the slider, the lifting rod can be driven to move downward. During this process, the protective net body located inside the fixed rod and the lifting rod can be unfolded. The protective net body provides the first layer of protection, which can reduce the damage to each other when in low-speed contact, and realize the protective function of the reinforced vehicle front anti-collision structure when in low-speed contact.

[0015] With the addition of a mesh chain, two sets of rotating shafts are symmetrically distributed on the inner side of the through slot, and the mesh chain is wound up on the outer side. When the second motor is started to drive the rotating shafts to rotate, the mesh chain can be unfolded and distributed on the inner side of the through slot. The mesh chain can provide a second layer of protection, thus realizing the reinforcement function of this reinforced front collision protection structure.

[0016] With slots and anti-collision plates, multiple sets of slots are distributed on the top of the insertion platform. After the anti-collision plates are inserted into the inside of the main frame through the slots, the fixing bolts can be tightened to help fix the position of the anti-collision plates. The cooperation of multiple sets of anti-collision plates can provide a third layer of protection for the device, realizing the plug-in installation function of the anti-collision plates of the reinforced vehicle front anti-collision structure. Attached Figure Description

[0017] Figure 1This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a front view cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a front view sectional structural diagram of the lifting frame and protective net of this utility model;

[0020] Figure 4 This is a front view cross-sectional structural diagram of the front frame of this utility model;

[0021] Figure 5 This is a schematic diagram of the front frame side structure of this utility model;

[0022] Figure 6 This is a front view cross-sectional structural diagram of the main frame of this utility model.

[0023] In the diagram: 1. Main frame; 2. Front frame; 3. Lifting frame; 4. Fixed rod; 5. First motor; 6. Lead screw; 7. Screw sleeve; 8. Slide groove; 9. Sliding block; 10. Lifting rod; 11. Protective net body; 12. Through groove; 13. Second motor; 14. Rotating shaft; 15. Net chain; 16. Insertion platform; 17. Slot; 18. Anti-collision plate; 19. Fixing hole; 20. Fixing bolt; 21. Positioning groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6This utility model provides an embodiment of a reinforced front-end anti-collision structure for special vehicles, comprising a main frame 1 and a front frame 2. The front frame 2 is fixed to the left side of the main frame 1, and lifting protective net assemblies are provided at both ends of the front frame 2. The lifting protective net assembly includes a lifting frame 3, a fixing rod 4, a first motor 5, a lead screw 6, a screw sleeve 7, a sliding groove 8, a slider 9, a lifting rod 10, and a protective net body 11. Lifting frames 3 are installed at both ends of the front frame 2, and a fixing rod 4 is installed at the top left of the fixing rod 4. The lifting frame 3 contains... The top of the unit is equipped with a first motor 5, and the bottom of the first motor 5 is equipped with a lead screw 6. The lead screw 6 is threadedly connected to a screw sleeve 7. The left side surface of the lifting frame 3 is provided with a sliding groove 8. A slider 9 is movably installed inside the sliding groove 8. The right side of the slider 9 is fixedly connected to the left side of the screw sleeve 7. A lifting rod 10 is installed on the left side of the slider 9. A protective net body 11 is installed between the fixed rod 4 and the lifting rod 10. Two sets of protective net bodies 11 are installed between the fixed rod 4 and the lifting rod 10. The two sets of protective net bodies 11 are distributed in parallel.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during use, with the start of the first motor 5 inside the lifting frame 3, the lead screw 6 can be driven to rotate. The screw sleeve 7 cooperates with the lead screw 6. As the lead screw 6 moves down, the lifting rod 10 can be pulled down with the assistance of the slider 9. During this process, the fixed rod 4 and the protective net body 11 inside the lifting rod 10 can be unfolded and used at the front end of the device.

[0027] A through groove 12 is provided on the left side surface of the front frame 2. A second motor 13 is installed at the bottom of the through groove 12. A rotating shaft 14 is installed at the top of the second motor 13. Two sets of rotating shafts 14 are movably installed inside the through groove 12. The two sets of rotating shafts 14 are symmetrically distributed. A mesh chain 15 is installed on the outer wall of the rotating shaft 14.

[0028] Specifically, such as Figure 2 , Figure 4 and Figure 5 As shown, during use, two sets of rotating shafts 14 are symmetrically distributed on the inner side of the front frame 2 and are connected to each other by a mesh chain 15. The mesh chain 15 at the front end of the rotating shaft 14 can be driven to rotate by the second motor 13 to achieve the adjustment of the protective surface.

[0029] A base plate 16 is fixed at the top of the main frame 1. A slot 17 is provided through the top of the base plate 16. Several slots 17 are provided through the top of the base plate 16 and are symmetrically distributed. A crash plate 18 is inserted into the slot 17. A fixing hole 19 is provided on the left side surface of the base plate 16. A fixing bolt 20 is provided inside the fixing hole 19. The fixing hole 19 has an internal thread. The fixing bolt 20 has an external thread on its surface. A positioning groove 21 is provided at the bottom inside the main frame 1. The cross-section of the positioning groove 21 is larger than the cross-section of the crash plate 18. The bottom end of the crash plate 18 extends into the interior of the positioning groove 21.

[0030] Specifically, such as Figure 2 and Figure 6 As shown, in use, multiple sets of anti-collision plates 18 can be inserted into the inner side of the main frame 1 through the slot 17. After tightening the fixing bolt 20 to fix the anti-collision plates 18, the multiple sets of anti-collision plates 18 are inserted into the inner side of the main frame 1 to provide protection. Conversely, by loosening the fixing bolt 20, the anti-collision plates 18 can be pulled out in the opposite direction for replacement.

[0031] Working Principle: In use, the device is installed at the front of the vehicle body. With the activation of the first motor 5 inside the lifting frame 3, the lead screw 6 rotates. The screw sleeve 7 engages with the lead screw 6, and as the lead screw 6 moves downwards, the lifting rod 10 is pulled downwards with the assistance of the slider 9. During this process, the protective net body 11 inside the fixed rod 4 and the lifting rod 10 unfolds. The protective net body 11 can be made of nylon mesh and is located at the front of the device, providing the first line of protection. Two sets of rotating shafts 14 are symmetrically distributed inside the front frame 2, connected by a mesh chain 15. The second motor 13 drives the mesh chain 15 at the front of the rotating shafts 14 to rotate, adjusting the protective surface. The mesh chain 15, located inside the front frame 2, provides the second line of protection. Multiple anti-collision systems are also included. Plate 18 can be inserted into the inner side of the main frame 1 through slot 17. After tightening the fixing bolt 20 to fix the auxiliary anti-collision plate 18, multiple sets of anti-collision plates 18 are inserted into the inner side of the main frame 1 to provide protection and provide a third layer of protection. Conversely, if the fixing bolt 20 is loosened and the anti-collision plate 18 is loosened, the anti-collision plate 18 can be pulled out in the opposite direction for replacement. In the event of a low-speed collision, the main body of the protective net 11 will make contact first to provide buffer protection. If the collision force is large, it will contact the inner net chain 15, which will provide a second layer of buffer protection. If the net chain 15 is still insufficient for protection, the third set of anti-collision plates 18 inserted into the inner side of the main frame 1 will make contact with it to provide the final anti-collision protection. Through three protective measures, a collision protection function is provided.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A reinforced front bumper structure for special vehicles, comprising a main frame (1) and a front frame (2), characterized in that: The main frame (1) is fixed with a front frame (2) on the left side, and the two ends of the front frame (2) are equipped with lifting protective net assemblies; The lifting protective net assembly includes a lifting frame (3), a fixed rod (4), a first motor (5), a lead screw (6), a screw sleeve (7), a slide groove (8), a slider (9), a lifting rod (10), and a protective net body (11). The lifting frame (3) is installed at both ends of the front frame (2). The fixed rod (4) is installed at the top left side of the fixed rod (4). The first motor (5) is installed at the top inside the lifting frame (3). The lead screw (6) is installed at the bottom end of the first motor (5). The screw sleeve (7) is threadedly connected to the outside of the lead screw (6). The slide groove (8) is provided on the surface of the left side of the lifting frame (3). The slider (9) is movably installed inside the slide groove (8). The right side of the slider (9) is fixedly connected to the left side of the screw sleeve (7). The lifting rod (10) is installed on the left side of the slider (9). The protective net body (11) is installed between the fixed rod (4) and the lifting rod (10).

2. The reinforced front impact structure for a special vehicle according to claim 1, characterized in that: The protective net body (11) has two sets installed between the fixed rod (4) and the lifting rod (10), and the two sets of the protective net body (11) are distributed in parallel.

3. The reinforced frontal collision protection structure for special vehicles according to claim 1, characterized in that: A through groove (12) is provided on the left side surface of the front frame (2). A second motor (13) is installed at the bottom of the through groove (12). A rotating shaft (14) is installed at the top of the second motor (13). A mesh chain (15) is installed on the outer side wall of the rotating shaft (14).

4. A reinforced front-end collision protection structure for special vehicles according to claim 3, characterized in that: Two sets of the rotating shafts (14) are movably installed inside the through groove (12), and the two sets of rotating shafts (14) are symmetrically distributed.

5. A reinforced front-end collision protection structure for special vehicles according to claim 1, characterized in that: The top of the main frame (1) is fixed with a plug (16), and a slot (17) is provided through the top of the plug (16). A bumper (18) is inserted into the slot (17). A fixing hole (19) is provided on the left side surface of the plug (16). A fixing bolt (20) is provided inside the fixing hole (19). A positioning groove (21) is provided at the bottom of the main frame (1).

6. A reinforced front-end collision protection structure for special vehicles according to claim 5, characterized in that: The slots (17) are provided through the top of the socket (16), and the slots (17) are symmetrically distributed.

7. A reinforced front-end collision protection structure for special vehicles according to claim 5, characterized in that: The fixing hole (19) is provided with an internal thread, and the fixing bolt (20) is provided with an external thread.

8. A reinforced front-end collision protection structure for special vehicles according to claim 5, characterized in that: The cross-section of the positioning groove (21) is larger than the cross-section of the anti-collision plate (18), and the bottom end of the anti-collision plate (18) extends into the interior of the positioning groove (21).

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