A light truck cargo box wooden pad limiting structure

Abstract

This utility model discloses a light truck cargo box dunnage limiting structure, including multiple diagonal bracing plates arranged longitudinally along the dunnage, dunnage limiting brackets, cargo box positioning frames, and U-bolts. The cargo box positioning frame is located on one side of the dunnage limiting brackets, and the diagonal bracing plates are two pieces arranged symmetrically in an inverted V-shape on both sides of the dunnage limiting brackets and the cargo box positioning frame. This utility model has a simple structure and is easy and quick to install. Through the combined use of the diagonal bracing plates, dunnage limiting brackets, cargo box positioning frames, and U-bolts, the connection between the truck chassis, dunnage, and cargo box is secure. It effectively solves the problem of dunnage easily twisting, deforming, tearing, and other abnormalities under conditions such as turning, bumpy roads, and emergency braking. The structure is stable and reliable, and the driving safety is high.

Description

Technical Field

[0001] This utility model relates to a limiting structure for the wooden pads of a light truck cargo box, belonging to the field of truck manufacturing technology. Background Technology

[0002] In the installation of cargo boxes on modified Class II light truck chassis, it is usually necessary to place wooden blocks between the cargo box and the chassis frame. These blocks are secured by block limiters to restrict the relative displacement between the cargo box and the chassis frame during vehicle movement. For example... Figures 4-5 As shown, the existing wooden block limiting frame includes a limiting block with downward-facing flanges on both opposite sides and an upward-facing flange in the middle of one side. During installation, the upward-facing flange of the frame contacts the longitudinal beam of the cargo box and is fixed with a single bolt. The two lower flanges of the limiting frame contact the wooden block. This only restricts the displacement of the bottom of the cargo box and the wooden block, keeping the positions of the cargo box and the wooden block relatively fixed. However, under many working conditions, such as turning, bumpy roads, and emergency braking, the positions of the wooden block and the chassis frame will shift as the vehicle turns or twists on the road. This is especially true when the cargo box is fully loaded or heavily loaded, which can easily cause torsional deformation between the two. In severe cases, the wooden block may be torn due to twisting, affecting the safety of the cargo in the cargo box. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a light truck cargo box dunnage limiting structure to at least solve the problems mentioned in the background art.

[0004] The objective of this utility model is achieved through the following technical solution: A light truck cargo box dunnage limiting structure is used for fixing the cargo box longitudinal beams, dunnage, and chassis frame longitudinal beams. It is characterized by comprising multiple diagonal bracing plates arranged longitudinally along the dunnage, dunnage limiting brackets, a cargo box positioning frame, and U-bolts. The cargo box positioning frame is located on one side of the dunnage limiting bracket, and the diagonal bracing plates are two pieces arranged symmetrically in an inverted V-shape on both sides of the dunnage limiting bracket and the cargo box positioning frame.

[0005] Furthermore, the wooden block limiting bracket is located at the center of the rear wheel of the vehicle frame, and the cargo box positioning frame is located on one side of the wooden block limiting bracket. At the same time, a pair of inverted V-shaped diagonal bracing plates are installed on both sides of the wooden block limiting bracket and the cargo box positioning frame to ensure a firm connection between the cargo box longitudinal beam, the wooden block, and the vehicle frame longitudinal beam.

[0006] Furthermore, the wooden block limiting bracket includes a bracket body, with a downward-turned edge provided in the middle of two opposite sides of the bracket body, and an upward-turned edge symmetrically provided on both sides of the downward-turned edge of each side. The width between the downward-turned edges on the two opposite sides of the bracket body is adapted to the longitudinal beam of the vehicle frame, while the width between the upward-turned edges on the two opposite sides of the bracket body is adapted to the wooden block.

[0007] Furthermore, the width between the two opposite lower flanges of the bracket body is slightly larger than the width of the frame longitudinal beam, while the width between the two opposite upper flanges is slightly larger than the width of the pad wood, so that an assembly gap is reserved during installation to cope with manufacturing errors.

[0008] Furthermore, a 1-3mm assembly gap is reserved between the lower flange of the bracket body and the longitudinal beam of the frame, and between the upper flange and the pad.

[0009] Furthermore, the cargo box positioning frame includes a cargo box positioning plate fixed to the longitudinal beam of the cargo box and a vehicle frame positioning plate fixed to the longitudinal beam of the vehicle frame. The cargo box positioning plate and the vehicle frame positioning plate are positioned opposite each other and are connected together by bolts.

[0010] Furthermore, both the cargo box positioning plate and the vehicle frame positioning plate are L-shaped plates.

[0011] Furthermore, the U-bolts are arranged in multiple pieces at the front and rear of the cargo box longitudinal beams. The U-bolts pass through the cargo box longitudinal beams, the wooden blocks, and the frame longitudinal beams in sequence with the U-bolts facing downwards, and are connected to the frame longitudinal beams by fastening nuts.

[0012] Furthermore, the inclined plate is a rectangular plate or a U-shaped plate, with bolt holes at both ends. Two inclined plates are arranged between the wooden support bracket and the cargo box positioning frame, and are inclined in an inverted V-shape. Each inclined plate is connected to the cargo box longitudinal beam and the vehicle frame longitudinal beam at both ends by bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model has a simple structure and is easy and quick to install. Through the combined use of inclined plates, wooden block limit brackets, cargo box positioning frames and U-bolts, the connection between the truck chassis, wooden blocks and cargo box is secure. It effectively solves the problem that the wooden blocks are prone to torsion deformation and tearing when the truck is turning, on bumpy roads, or under emergency braking. The structure is stable and reliable, ensuring driving safety.

[0014] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings, wherein: Figure 1 A front view of the light truck cargo box dunnage limiting structure provided in an embodiment of this utility model; Figure 2 A side view of the light truck cargo box dunnage limiting structure provided in an embodiment of this utility model: Figure 3 This is a schematic diagram of the structure of a wooden pad limiting bracket provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the front structure of an existing wooden support bracket. Figure 5 This is a schematic diagram of the top structure of an existing wooden support bracket.

[0016] In the diagram: 1. Cargo box longitudinal beam; 2. Timber pad; 3. Frame longitudinal beam; 4. Diagonal brace; 5. Timber pad limiting bracket; 501. Bracket body; 502. Lower flange; 503. Upper flange; 6. Cargo box positioning frame; 601. Cargo box positioning plate; 602. Frame positioning plate; 7. U-bolt. Detailed Implementation

[0017] 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 scope of protection of the present utility model.

[0018] like Figures 1-3 As shown, the first embodiment of this utility model provides a light truck cargo box dunnage limiting structure, which is used for fixing the cargo box longitudinal beam 1, dunnage 2 and chassis frame longitudinal beam 3. It includes multiple diagonal bracing plates 4 arranged longitudinally along the dunnage, dunnage limiting brackets 5, cargo box positioning frames 6 and U-bolts 7; the cargo box positioning frame 6 is set on one side of the dunnage limiting bracket 5, and the diagonal bracing plates 4 are two pieces arranged symmetrically on both sides of the dunnage limiting bracket 5 and the cargo box positioning frame 6 in an inverted V-shape.

[0019] Specifically, the mounting position of the wooden block limiting bracket 5 is located at the center of the rear wheel of the vehicle frame, and the cargo box positioning frame 6 is set on one side of the wooden block limiting bracket 5. At the same time, a pair of inverted V-shaped diagonal bracing plates 3 are set on both sides of the wooden block limiting bracket 5 and the cargo box positioning frame 6 to make the connection between the cargo box longitudinal beam 1, the wooden block 2 and the vehicle frame longitudinal beam 3 firm.

[0020] The wooden block limiting bracket 5 includes a bracket body 501. Each of the two opposite sides of the bracket body 501 has a downward-curved edge 502 at its midpoint, and symmetrically arranged upward-curved edges 503 on both sides of the downward-curved edge. The width between the two opposite downward-curved edges 502 of the bracket body is adapted to the longitudinal beam 3 of the vehicle frame, while the width between the two opposite upward-curved edges 503 of the bracket body is adapted to the wooden block 2. During installation, the upward-curved edges 503 of the bracket body engage with the wooden block 2, and the downward-curved edges 502 engage with the longitudinal beam 3 of the vehicle frame, thus limiting the wooden block 2. The width between the two opposite downward-curved edges 502 of the bracket body is slightly larger than the width of the longitudinal beam 3 of the vehicle frame, and the width between the two opposite upward-curved edges 503 of the bracket body is slightly larger than the width of the wooden block 2, allowing for an assembly gap during installation to accommodate manufacturing errors. Preferably, an assembly gap of 1-3mm is reserved between the downward-curved edge 502 and the longitudinal beam 3 of the vehicle frame, and between the upward-curved edge 503 and the wooden block 2, making installation more convenient and efficient.

[0021] The cargo box positioning frame 6 includes a cargo box positioning plate 601 fixed to the cargo box longitudinal beam 1 and a frame positioning plate 602 fixed to the frame longitudinal beam 3. The cargo box positioning plate 601 and the frame positioning plate 602 are positioned opposite each other and connected together by bolts. Specifically, both the cargo box positioning plate 601 and the frame positioning plate 602 are L-shaped plates. The upper side of one L-shaped plate is fixed to the cargo box longitudinal beam 1, and the lower side is positioned opposite to the upper side of the other L-shaped plate and connected together by bolts. The lower side of the other L-shaped plate is fixed to the frame longitudinal beam 3, which facilitates installation.

[0022] Multiple U-bolts 7 are arranged at the front and rear of the cargo box longitudinal beam 1. The U-bolts 7, facing downwards, pass sequentially through the cargo box longitudinal beam 1, the wooden blocks 2, and the frame longitudinal beam 3, and are connected to the frame longitudinal beam 3 by fastening nuts. This effectively ensures a firm and reliable connection between the chassis frame and the cargo box, preventing the risk of the cargo box detaching due to excessive instantaneous torque when the fully loaded cargo box is turning. Preferably, at least four U-bolts 7 are arranged at the front and rear of the cargo box longitudinal beam 1.

[0023] The inclined brace 4 is a rectangular or U-shaped plate with bolt holes at both ends. Two inclined braces 4 are arranged between the wooden block limiting bracket 5 and the cargo box positioning frame 6, and are inclined in an inverted V-shape. Each inclined brace 4 is connected to the cargo box longitudinal beam 1 and the frame longitudinal beam 3 by bolts at both ends. When the fully loaded cargo box is subjected to a large instantaneous torque, the inclined braces 4 with their inverted V-shape arrangement can better resist the torsional deformation of the wooden block 2.

[0024] In this embodiment, 12 light truck test vehicles equipped with the aforementioned light truck cargo box wooden pad limiting structure underwent 17,000 km of intensive road testing and 30,000 km of comprehensive road testing at the Xiangyang Automotive Testing Center, and no abnormalities were found, demonstrating that the structure is stable and reliable.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to restrict the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical solution of the present utility model and based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A light truck cargo box wooden block limiting structure, used for fixing between the cargo box longitudinal beam (1), the wooden block (2), and the chassis frame longitudinal beam (3), characterized in that, It includes multiple inclined bracing plates (4) arranged longitudinally along the padding, padding limiting brackets (5), cargo box positioning frames (6) and U-bolts (7); the cargo box positioning frames (6) are set on one side of the padding limiting brackets (5), and the inclined bracing plates (4) are two pieces arranged symmetrically on both sides of the padding limiting brackets (5) and the cargo box positioning frames (6) in an inverted V-shape.

2. The light truck cargo box dunnage limiting structure according to claim 1, characterized in that, The wooden block limiting bracket (5) is set at the center of the rear wheel of the vehicle frame, and the cargo box positioning frame (6) is set on one side of the wooden block limiting bracket (5). At the same time, a pair of inverted V-shaped diagonal bracing plates (3) are set on both sides of the wooden block limiting bracket (5) and the cargo box positioning frame (6) to make the cargo box longitudinal beam (1), wooden block (2) and vehicle frame longitudinal beam (3) firmly connected.

3. The light truck cargo box dunnage limiting structure according to claim 2, characterized in that, The wooden block limiting bracket (5) includes a bracket body (501). A downward flange (502) is provided in the middle of the two opposite sides of the bracket body (501), and an upward flange (503) is symmetrically provided on both sides of the downward flange of each side. The width between the downward flanges (502) on the two opposite sides of the bracket body is adapted to the longitudinal beam (3) of the vehicle frame, while the width between the upward flanges (503) on the two opposite sides of the bracket body is adapted to the wooden block (2).

4. The light truck cargo box dunnage limiting structure according to claim 3, characterized in that, The width between the two opposite lower flanges (502) of the bracket body (501) is slightly greater than the width of the frame longitudinal beam (3), while the width between the two opposite upper flanges (503) is slightly greater than the width of the pad (2), so that an assembly gap is reserved during installation to cope with manufacturing errors.

5. The light truck cargo box dunnage limiting structure according to claim 4, characterized in that, A 1-3mm assembly gap is reserved between the lower flange (502) of the bracket body (501) and the longitudinal beam (3) of the frame, and between the upper flange (503) and the pad (2).

6. The light truck cargo box dunnage limiting structure according to claim 2, characterized in that, The cargo box positioning frame (6) includes a cargo box positioning plate (601) fixed on the cargo box longitudinal beam (1) and a frame positioning plate (602) fixed on the frame longitudinal beam (3). The cargo box positioning plate (601) and the frame positioning plate (602) are positioned opposite each other and are connected together by bolts.

7. The light truck cargo box dunnage limiting structure according to claim 6, characterized in that, Both the cargo box positioning plate (601) and the frame positioning plate (602) are L-shaped plates.

8. The light truck cargo box dunnage limiting structure according to claim 2, characterized in that, The U-bolts (7) are arranged in multiple pieces at the front and rear of the cargo box longitudinal beam (1). The U-bolts (7) pass through the cargo box longitudinal beam (1), the pad (2) and the frame longitudinal beam (3) in sequence with the U-bolts (7) facing downward, and are connected to the frame longitudinal beam (3) by fastening nuts.

9. The light truck cargo box dunnage limiting structure according to claim 2, characterized in that, The inclined plate (4) is a rectangular plate or a U-shaped plate. Bolt holes are provided at both ends of the inclined plate (4). The inclined plate (4) consists of two pieces arranged between the wooden support bracket (5) and the cargo box positioning frame (6), and is set in an inverted V-shape. Each inclined plate (4) is connected to the cargo box longitudinal beam (1) and the vehicle frame longitudinal beam (3) at both ends by bolts.

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