Vehicle and rear protection

Abstract

This utility model provides a vehicle and its rear protection. The rear protection includes: an upper crossbeam extending laterally and used for connection to the vehicle frame; a lower crossbeam spaced below the upper crossbeam; and a connector disposed between the upper and lower crossbeams. The lower crossbeam includes a top wall and a bottom wall spaced parallel to each other, and a rear end wall connected to the rear ends of the top and bottom walls. The middle portion of the rear end wall is recessed forward, giving it three bends. The three bends at the rear end of the lower crossbeam create an irregular structure, increasing strength and thus enhancing the strength of the rear protection.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a vehicle and its rear protection. Background Technology

[0002] The rear protection system of a vehicle can buffer external impacts and provide protection. However, the current strength of rear protection systems still needs to be improved. Utility Model Content

[0003] The purpose of this utility model is to provide a vehicle and rear protection to solve the problems of the prior art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a rear protection, comprising: The upper crossbeam extends laterally and is used for connection to the frame; The lower crossbeam is spaced below the upper crossbeam; A connector is disposed between the upper crossbeam and the lower crossbeam; The lower crossbeam includes a top wall and a bottom wall arranged in parallel intervals, and a rear end wall connected to the rear ends of the top wall and the bottom wall. The middle part of the rear end wall is recessed forward, so that the rear end wall has three bends.

[0005] In one embodiment, the rear protection includes two mounting members spaced laterally, the mounting members being detachably connected to the upper crossbeam, and the mounting members being welded to the frame.

[0006] In one embodiment, the mounting member includes a mounting plate and inner and outer folded edges arranged on the left and right sides of the mounting plate. The inner folded edge is close to another mounting member and extends forward from the mounting plate. The outer folded edge extends backward from the mounting plate and is located below the upper crossbeam.

[0007] In one embodiment, the upper crossbeam has a square cross-section, is closed at both ends laterally, and has an opening at the front end between the two mounting members.

[0008] In one embodiment, the mounting member extends downward beyond the upper crossbeam, and the rear protection includes two vertical supports spaced laterally, with the two vertical supports corresponding to the two mounting members. The top of the vertical support is connected to the vehicle frame, the upper rear end of the vertical support is attached to the mounting member and detachably connected to the mounting member, and the lower rear end of the vertical support is detachably connected to the lower crossbeam.

[0009] In one embodiment, the upper crossbeam extends forward beyond the lower crossbeam, and the vertical support includes a front wing plate, a rear wing plate, and a web plate connecting the front wing plate and the rear wing plate. The rear wing plate includes an upper part, a transition part, and a lower part from top to bottom. The upper part extends vertically and is used to fit onto the mounting member and is detachably connected. The transition part slopes backward from top to bottom, and the lower part fits onto the lower crossbeam and is detachably connected to the lower crossbeam. The front wing plate includes an upper wall and a lower wall arranged sequentially from top to bottom, and the lower wall is inclined downward from front to back; The vertical support includes an extension plate disposed at the top front end of the rear wing, the extension plate being disposed at the top of the front wing and the web plate, and the extension plate being attached to and detachably connected to the bottom of the frame.

[0010] In one embodiment, the lower crossbeam includes two reinforcing ribs spaced apart laterally, the two reinforcing ribs corresponding to the two vertical supports, and the reinforcing ribs fitting against the top wall, the bottom wall and the rear end wall; The lower crossbeam includes two front end walls spaced apart in the horizontal direction. The two front end walls are correspondingly arranged with the two vertical supports. The front end walls are detachably connected to the corresponding vertical supports. Both sides of the front end walls extend beyond the vertical supports in the horizontal direction, and operating holes are provided on both sides of the front end walls located on the vertical supports.

[0011] In one embodiment, the connector includes two connecting plates spaced laterally. The top and bottom of the connecting plates are detachably connected to the upper crossbeam and the lower crossbeam, respectively. A license plate mounting plate for mounting a license plate is provided between the two connecting plates. The license plate mounting plate has forward-folding flanges at both lateral ends. The flanges are detachably connected to the mounting component. The license plate mounting plate has a forward-recessed mounting portion for detachably mounting a license plate.

[0012] In one embodiment, the lower crossbeam extends rearward beyond the upper crossbeam, and the upper crossbeam is provided with a plurality of mounting holes for mounting lamps, the plurality of mounting holes being spaced apart laterally. The rear protection includes a protective pedal disposed in the middle of the lower crossbeam, the protective pedal covering at least the rear end face and part of the top face of the lower crossbeam.

[0013] This application also provides a vehicle, including a frame and a rear guard as described above disposed at the rear end of the frame.

[0014] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects: The rear protection of this utility model includes an upper crossbeam, a lower crossbeam, and connecting parts. The lower crossbeam has three bends at the rear end, forming an irregular structure that increases strength, thereby increasing the strength of the rear protection.

[0015] Furthermore, the rear guard's vertical brace is connected to the lower crossbeam through a laterally extending front wall. In the event of a collision, the force is gradually dispersed through the lateral extension of the front wall, causing the vertical brace to stretch in the direction of the force, thus increasing its strength.

[0016] The lower crossbeam extends backward beyond the upper crossbeam. In the event of a collision, the lower crossbeam will collide first, ensuring the safety of the lighting fixtures installed on the upper crossbeam.

[0017] By fixing the mounting components to the longitudinal beams, detachably connecting the upper crossbeam to the mounting components, detachably connecting the vertical brace to the mounting components, detachably connecting the lower crossbeam to the vertical brace, and detachably connecting the connector to the upper and lower crossbeams, the remaining structure of the rear protection system, excluding the mounting components, is detachably connected to the vehicle frame. This not only facilitates installation but also makes it easier to replace parts of the structure and perform maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rear protection and part of the longitudinal beams in this utility model.

[0019] Figure 2 This is a structural schematic diagram of the rear protection device from one perspective of this utility model.

[0020] Figure 3 This is an exploded view of the rear protection in this utility model.

[0021] Figure 4 This is a partial structural schematic diagram of the lower crossbeam in this utility model.

[0022] The annotations in the attached figures are explained as follows: 1. Longitudinal beams; 2. Rear protection; 21. Upper crossbeam; 211. Mounting hole; 212. Opening; 22. Lower crossbeam; 221. Top wall; 222. Bottom wall; 223. Rear end wall; 2231. First section; 2232. Second section; 2233. Third section; 2234. Fourth section; 2236. First bend; 2237. Second bend; 2238. Third bend; 224. Reinforcing rib; 225. Front end wall; 23. Connecting plate; 24. Mounting component; 241. Mounting plate; 242. Inner folded edge; 243. Outer folded edge; 25. License plate mounting plate; 251. Flanged edge; 26. Vertical brace; 261. Front wing plate; 262. Rear wing plate; 263. Web plate; 264. Extension plate; 27. Protective footplate. Detailed Implementation

[0023] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0024] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0025] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0026] This application provides a vehicle including a frame and a rear guard disposed at the rear end of the frame.

[0027] For ease of description, the length direction of the frame is defined as longitudinal, and the width direction as transverse. The direction facing the cab is front, and the opposite direction is rear.

[0028] The frame includes two parallel longitudinal beams. Each longitudinal beam includes a top plate, a bottom plate, and side plates connecting the top and bottom plates. Both the top and bottom plates are horizontally oriented and extend longitudinally, separated vertically. The side plates are vertically oriented. The longitudinal beams have an I-shaped cross-section. The rear guard is located at the rear of the chassis. This rear guard is of high strength, and will be described in detail below.

[0029] Combination Figures 1-3 The rear protection 2 includes an upper crossbeam 21, a lower crossbeam 22, and connecting members. The lower crossbeam 22 includes a top wall 221 and a bottom wall 222 arranged in parallel and spaced apart, and a rear end wall 223 connected to the rear ends of the top wall 221 and the bottom wall 222. The middle part of the rear end wall 223 is recessed forward, giving the rear end wall 223 three bends. Increasing the number of bends at the rear end of the lower crossbeam 22 increases the strength of the lower crossbeam 22, thereby improving the overall strength of the rear protection 2.

[0030] The upper crossbeam 21 extends laterally and is used to connect to the frame. The upper crossbeam 21 has a square cross section and is closed at both ends laterally.

[0031] The upper crossbeam 21 is provided with a plurality of mounting holes 211 for mounting lamps, and the plurality of mounting holes 211 are spaced apart along the transverse direction. In this embodiment, the upper crossbeam 21 is provided with three mounting holes 211 at each of its two ends along the transverse direction.

[0032] The upper crossbeam 21 can be welded to the rear end of the frame or detachably mounted to the rear end of the frame.

[0033] When the upper crossbeam 21 is detachably mounted to the rear end of the frame, installation and replacement are convenient. In this case, the rear guard 2 includes two mounting members 24 spaced laterally. The mounting members 24 are detachably connected to the upper crossbeam 21 and are used for welding to the frame. That is, the upper crossbeam 21 is detachably connected to the frame by fixing it to the frame via the mounting members 24 and the detachable connection between the upper crossbeam 21 and the mounting members 24. Specifically, the detachable connection can be a bolt and nut connection or a rivet connection.

[0034] Mounting member 24 is specifically connected to the longitudinal beam 1 on the frame; therefore, the number of mounting members 24 can vary depending on the number of longitudinal beams 1 on the frame. For example, when there are three longitudinal beams 1 on the frame, there can also be three mounting members 24.

[0035] The front end of the upper crossbeam 21 has an opening 212 between the two mounting parts 24, facilitating the connection between the upper crossbeam 21 and the mounting parts 24 by the operator. The front end of the upper crossbeam 21 has two sets of connecting parts, each corresponding to a mounting part 24. The connecting parts can be rivets, threaded holes, or ordinary through holes, and the opening 212 preferably extends to the vicinity of the connecting parts. In this embodiment, after the mounting part 24 is connected to the upper crossbeam 21, the side of the mounting part 24 is flush with the side wall of the opening 212.

[0036] Mounting component 24 includes mounting plate 241 and inner folded edge 242 and outer folded edge 243 on the left and right sides of mounting plate 241 respectively. Inner folded edge 242 is close to another mounting component 24 and extends forward from mounting plate 241. Outer folded edge 243 extends backward from mounting plate 241 and is located below upper crossbeam 21.

[0037] Mounting plate 241 extends vertically and downward beyond upper crossbeam 21. The bottom of mounting plate 241 is spaced above lower crossbeam 22. In this embodiment, one side of mounting plate 241 bends forward to form an inner folded edge 242, and the other side of mounting plate 241 bends backward to form an outer folded edge 243. The top of inner folded edge 242 is higher than outer folded edge 243, and the top of inner folded edge 242 extends beyond the top of upper crossbeam 21.

[0038] Specifically, in this embodiment, the mounting plate 241 has through holes for bolt and nut connection with the upper crossbeam 21. The inner folded edge 242 and the outer folded edge 243 both have through holes.

[0039] The mounting component 24 increases its strength through the bending structure of the inner fold 242 and the outer fold 243, thereby increasing the strength of the entire rear protection 2.

[0040] The lower crossbeam 22 is spaced below the upper crossbeam 21. (See reference...) Figure 4 The lower crossbeam 22 includes a top wall 221 and a bottom wall 222 arranged in parallel intervals, and a rear end wall 223 connecting the rear ends of the top wall 221 and the bottom wall 222. The middle part of the rear end wall 223 is recessed forward, giving the rear end wall 223 three bends. Both the top wall 221 and the bottom wall 222 extend horizontally. Specifically, the cross section of the lower crossbeam 22 can be understood as a reclining M, with the opening 212 facing forward.

[0041] The rear end wall 223 includes a first segment 2231, a second segment 2232, a third segment 2233, and a fourth segment 2234 arranged sequentially from top to bottom. The first segment 2231 and the fourth segment 2234 extend vertically and are located on the same straight line. The second segment 2232 slopes downward from back to front, and the third segment 2233 slopes downward from front to back. The second segment 2232 and the third segment 2233 are arranged symmetrically. The first segment 2231 and the second segment 2232 form a first bend 2236, the second segment 2232 and the third segment 2233 form a second bend 2237, and the third segment 2233 and the fourth segment 2234 form a third bend 2238.

[0042] The first segment 2231, the second segment 2232, the third segment 2233, and the fourth segment 2234 should have a smooth transition between any two adjacent segments.

[0043] The lower crossbeam 22 preferably also includes an upward folding wall extending downward from the front end of the top wall 221 and a downward folding wall extending upward from the front end of the bottom wall 222, with a gap between the upward folding wall and the downward folding wall.

[0044] A connector is disposed between the upper crossbeam 21 and the lower crossbeam 22 to connect the two. Specifically, the connector includes two connecting plates 23 spaced laterally, with the top and bottom of the connecting plates 23 detachably connected to the upper crossbeam 21 and the lower crossbeam 22, respectively. The connecting plate 23 includes a vertically extending plate body and extended edges formed by forward folding of the top and bottom of the plate body. The extended edges are detachably connected to the upper crossbeam 21 and the lower crossbeam 22 by riveting.

[0045] The connector connects the upper crossbeam 21 and the lower crossbeam 22. The lower crossbeam 22 extends backward beyond the upper crossbeam 21, and the upper crossbeam 21 extends forward beyond the lower crossbeam 22. Specifically, the rear end of the connecting plate 23 is flush with the rear end of the upper crossbeam 21, and the lower crossbeam 22 extends backward beyond both the connecting plate 23 and the upper crossbeam 21.

[0046] A license plate mounting plate 25 for installing license plates is provided between the two connecting plates 23. The two lateral ends of the license plate mounting plate 25 are provided with forward-folding flanges 251. The flanges 251 are detachably connected to the mounting parts 24. The license plate mounting plate 25 is provided with a forward-recessed mounting part for detachably installing the license plate.

[0047] Specifically, the license plate mounting plate 25 includes a mounting section, a transition section located on both sides of the mounting section, and a second transition section corresponding to the first transition section. The mounting section has a vertically extending mounting surface, and mounting holes for mounting with the license plate are provided near both ends of the mounting section. The first transition section is inclined, and the two transition sections gradually move away from each other from front to back. The second transition section is parallel to the mounting section and located behind the mounting section. The end of the second transition section away from the first transition section bends forward to form a flange 251.

[0048] The flange 251 is fitted to the outer folded edge 243 of the mounting piece 24, and the two are detachably connected by bolts and nuts. Specifically, the flange 251 is provided with a through hole for bolts to pass through, and the outer folded edge 243 is also provided with a through hole for bolts to pass through.

[0049] The rear protection 2 includes two vertical supports 26 spaced laterally, which are correspondingly positioned to two mounting members 24. The top of the vertical supports 26 is connected to the vehicle frame, and the upper rear end of the vertical supports 26 is attached to and detachably connected to the mounting members 24. The lower rear end of the vertical supports 26 is detachably connected to the lower crossbeam 22. The vertical supports 26 further connect the vehicle frame, the mounting members 24, and the lower crossbeam 22, increasing the overall strength of the rear protection 2.

[0050] The vertical brace 26 includes a front wing plate 261, a rear wing plate 262, and a web plate 263 connecting the front wing plate 261 and the rear wing plate 262. The upper crossbeam 21 extends forward beyond the lower crossbeam 22; therefore, the rear wing plate 262 has a bent structure to adapt to the structure of the upper and lower crossbeams 21 and increase the strength of the vertical brace 26. Specifically, the rear wing plate 262 includes an upper part, a transition part, and a lower part arranged sequentially from top to bottom. The upper part extends vertically and is used to fit and detachably connect to the mounting member 24. The transition part slopes backward from top to bottom, and the lower part fits and detachably connects to the lower crossbeam 22. In this embodiment, the rear wing plate 262 is detachably connected to the mounting member 24 and the lower crossbeam 22 by bolts and nuts. Both the upper and lower parts have through holes for bolts to pass through.

[0051] The front wing 261 includes an upper wall and a lower wall arranged sequentially from top to bottom, with the lower wall sloping downwards from front to back.

[0052] The vertical support 26 includes an extension plate 264 disposed at the top front end of the rear wing 262. The extension plate 264 is disposed at the top of the front wing 261 and the web 263, and is attached to and detachably connected to the bottom of the frame. In this embodiment, the extension plate 264 is formed by bending forward from the top of the rear wing 262. The extension plate 264 is provided with through holes for bolts to pass through.

[0053] The lower crossbeam 22 includes two reinforcing ribs 224 spaced laterally, each corresponding to one of the two vertical supports 26. The reinforcing ribs 224 are attached to the top wall 221, bottom wall 222, and rear end wall 223. The reinforcing ribs 224 are plate-shaped and M-shaped, consistent with the cross-sectional shape of the lower crossbeam 22. The reinforcing ribs 224 are used to increase the strength at the connection between the lower crossbeam 22 and the vertical supports 26.

[0054] The lower crossbeam 22 includes two front end walls 225 spaced laterally, each corresponding to a vertical support 26. The front end walls 225 and their corresponding vertical supports 26 are detachably connected. Both sides of the front end walls 225 extend beyond the vertical supports 26, and operating holes are provided on both sides of the front end walls 225 at the locations of the vertical supports 26. These operating holes allow operators to detachably connect the front end walls 225 to the vertical supports 26. Specifically, in this embodiment, a through hole is provided on the front end walls 225, and a through hole is provided at the lower part of the rear wing plate 262 of the vertical support 26. Operating holes are provided on both the left and right sides of the through hole in the front end walls 225.

[0055] The rear guard 2 includes a protective pedal 27 disposed in the middle of the lower crossbeam 22. The protective pedal 27 is for operation personnel to step on. The protective pedal 27 covers at least the rear end face and part of the top face of the lower crossbeam 22. In this embodiment, the protective pedal 27 includes a horizontally extending first pedal and a vertically extending second pedal. The protective pedal 27 is L-shaped.

[0056] Specifically, the protective pedal 27 is riveted to the lower crossbeam 22.

[0057] In summary, this rear protection has the following advantages: 1. The lower crossbeam has three bends at the rear end, forming an irregular structure that increases strength and thus enhances the strength of the rear protection.

[0058] 2. The vertical brace is connected to the lower crossbeam through the horizontally extending front wall. In the event of a collision, the force is gradually dispersed through the horizontal extension of the front wall, which stretches the force direction of the vertical brace and improves its strength.

[0059] 3. The lower crossbeam extends backward beyond the upper crossbeam. In the event of a collision, the lower crossbeam will collide first, ensuring the safety of the lighting fixtures installed on the upper crossbeam.

[0060] 4. By fixing the mounting components to the longitudinal beams, detachably connecting the upper crossbeam to the mounting components, detachably connecting the vertical braces to the mounting components, detachably connecting the lower crossbeam to the vertical braces, and detachably connecting the connecting components to the upper and lower crossbeams, the remaining structure of the rear protection system, excluding the mounting components, is detachably connected to the vehicle frame. This not only facilitates installation but also makes it easier to replace parts of the structure and perform maintenance.

[0061] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A rear guard characterized by, include: The upper crossbeam extends laterally and is used for connection to the frame; The lower crossbeam is spaced below the upper crossbeam; A connector is disposed between the upper crossbeam and the lower crossbeam; The lower crossbeam includes a top wall and a bottom wall arranged in parallel intervals, and a rear end wall connected to the rear ends of the top wall and the bottom wall. The middle part of the rear end wall is recessed forward, so that the rear end wall has three bends.

2. The rear guard according to claim 1, characterized in that The rear protection includes two mounting members spaced laterally, which are detachably connected to the upper crossbeam and are used for welding to the vehicle frame.

3. The rear protection according to claim 2, characterized in that, The mounting component includes a mounting plate and inner and outer folded edges arranged on the left and right sides of the mounting plate. The inner folded edge is close to another mounting component and extends forward from the mounting plate. The outer folded edge extends backward from the mounting plate and is located below the upper crossbeam.

4. The rear protection according to claim 2, characterized in that, The upper crossbeam has a square cross-section and is closed at both ends laterally. The front end of the upper crossbeam has an opening between the two mounting components.

5. The rear protection according to claim 2, characterized in that, The mounting component extends downward beyond the upper crossbeam. The rear protection includes two vertical supports spaced laterally. The two vertical supports are correspondingly arranged with the two mounting components. The top of the vertical support is connected to the vehicle frame. The upper rear end of the vertical support is attached to the mounting component and detachably connected to the mounting component. The lower rear end of the vertical support is detachably connected to the lower crossbeam.

6. The rear protection according to claim 5, characterized in that, The upper crossbeam extends forward beyond the lower crossbeam. The vertical support includes a front wing plate, a rear wing plate, and a web plate connecting the front wing plate and the rear wing plate. The rear wing plate includes an upper part, a transition part, and a lower part from top to bottom. The upper part extends vertically and is used to fit onto the mounting piece and is detachably connected. The transition part slopes backward from top to bottom. The lower part fits onto the lower crossbeam and is detachably connected to the lower crossbeam. The front wing plate includes an upper wall and a lower wall arranged sequentially from top to bottom, and the lower wall is inclined downward from front to back; The vertical support includes an extension plate disposed at the top front end of the rear wing, the extension plate being disposed at the top of the front wing and the web plate, and the extension plate being attached to and detachably connected to the bottom of the frame.

7. The rear protection according to claim 5, characterized in that, The lower crossbeam includes two reinforcing ribs spaced apart in the transverse direction, the two reinforcing ribs corresponding to the two vertical supports, and the reinforcing ribs fitting the top wall, bottom wall and rear end wall; The lower crossbeam includes two front end walls spaced apart in the horizontal direction. The two front end walls are correspondingly arranged with the two vertical supports. The front end walls are detachably connected to the corresponding vertical supports. Both sides of the front end walls extend beyond the vertical supports in the horizontal direction, and operating holes are provided on both sides of the front end walls located on the vertical supports.

8. The rear protection according to claim 2, characterized in that, The connector includes two connecting plates spaced laterally. The top and bottom of the connecting plates are detachably connected to the upper crossbeam and the lower crossbeam, respectively. A license plate mounting plate for installing a license plate is provided between the two connecting plates. The license plate mounting plate has forward-folding flanges at both ends of its lateral direction. The flanges are detachably connected to the mounting component. The license plate mounting plate has a forward-recessed mounting portion for detachably installing the license plate.

9. The rear protection according to claim 1, characterized in that, The lower crossbeam extends rearward beyond the upper crossbeam, and the upper crossbeam is provided with a plurality of mounting holes for mounting lamps, the plurality of mounting holes being spaced apart laterally. The rear protection includes a protective pedal disposed in the middle of the lower crossbeam, the protective pedal covering at least the rear end face and part of the top face of the lower crossbeam.

10. A vehicle, characterized in that, Includes a frame and a rear guard as described in any one of claims 1 to 9, disposed at the rear end of the frame.

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