A cargo bed front panel structure
By incorporating chamfered corners and protective plates into the front panel structure of the cargo box, the problems of interference between the engine system and gas cylinders and the falling of flammable materials were solved, thereby improving safety and stability and enhancing the electrophoretic coating effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CHANGAN KUAYUE AUTOMOBILE
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
The existing cargo box front panel structure is prone to causing interference between the engine system and the gas cylinder, posing a safety hazard. Furthermore, flammable materials can easily fall onto the engine exhaust catalytic converter and cause a fire.
Design a cargo box front panel structure, including a safety frame and a guard plate. The bottom of the safety frame is equipped with a chamfered corner to avoid gas cylinders, and the guard plate prevents flammable materials from falling. Combined with the frame, reinforcing ribs and reinforcing box, the structural stability is improved, and the flowability of the electrophoretic liquid is improved through process holes.
It effectively avoids interference between gas cylinders and safety frames, prevents flammable materials from falling and causing fires, improves safety index and structural stability, and enhances the coating effect of electrophoretic liquid.
Smart Images

Figure CN224491243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cargo box vehicles, specifically to a cargo box front panel structure. Background Technology
[0002] Flatbed trucks consist of a cab and a cargo box. The cargo box includes a floor, with a crossbeam fixed to the end of the floor near the cab. A front panel structure is mounted on the cargo box via the crossbeams. The front panel structure prevents cargo from impacting the cab. The cargo box also includes an engine system, which comprises an exhaust catalytic converter and gas cylinders, among other components. The engine system should be installed away from heat sources, and its operating environment should not be too high. When installing the engine system under the vehicle frame, it should not be positioned in front of the front axle or behind the rear bumper. It should be installed in a protected position within the vehicle's external contours to prevent it from affecting driving safety. For flatbed trucks, the engine system is typically installed between the cab and the cargo box, with an exposed top, which helps with heat dissipation and facilitates normal operation.
[0003] However, the existing cargo box has an arched safety frame and a front panel. The engine exhaust catalyst is located at the bottom of the front panel. If flammable materials above the front panel or inside the cargo box fall onto the engine exhaust catalyst, it will cause a fire, posing a safety hazard. At the same time, the bottom of the safety frame of the cargo box has sharp edges, which will interfere with the gas cylinder during installation and operation, causing great damage to the gas cylinder. Utility Model Content
[0004] The present invention aims to provide a cargo box front panel structure to solve the problem of interference and safety hazards caused by the cargo box front panel structure to the engine system.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cargo box front panel structure, including a safety frame and a front panel installed on the safety frame, the safety frame being fixedly connected to the transverse side beam, the bottom end of the safety frame having opposite chamfers on both sides, the chamfers being used to avoid gas cylinders, and the front panel having a horizontally arranged guard plate, the guard plate being used to prevent combustibles from falling onto the engine exhaust catalyst.
[0006] The beneficial effects of this solution are as follows: symmetrical chamfers are made on both sides of the bottom of the safety frame. When a car is driving at its limit, the distance and positional relationship between the engine system under the car and the car body will change. In a conventional design, the gas cylinder will interfere with the bottom of the safety frame, and the gas cylinder will be at risk of rupture under the action of the safety frame. By setting chamfers, this problem can be effectively solved, and the safety index can be improved.
[0007] In addition, the engine exhaust catalytic converter is a key component of a car. It converts harmful gases emitted by the engine into harmless substances through a chemical reaction, thereby reducing environmental pollution. Its internal temperature is high. When flammable goods are placed in the cargo compartment, they may fall onto the engine exhaust catalytic converter through the front panel and ignite the flammable materials, posing a significant safety hazard. By installing a protective plate, the flammable materials are prevented from falling onto the engine catalytic converter, thus avoiding this phenomenon and improving the safety index.
[0008] Preferably, as an improvement, the safety frame is horizontally mounted with a frame, and an installation space for installing the front bulkhead is formed between the bottom end of the frame, the top end of the safety frame and the crossbeam. The front bulkhead is located in the installation space, and the bottom end of the front bulkhead is fixedly connected to the crossbeam.
[0009] The beneficial effects are: the front bulkhead is fixedly installed in the installation space and is also fixedly connected to the cross beam, safety frame and frame, which can improve the rigidity and structural stability of the front bulkhead.
[0010] Preferably, as an improvement, a reinforcing space is formed between the top of the frame and the safety frame, and the reinforcing space is vertically provided with several first reinforcing ribs.
[0011] Preferably, as an improvement, the safety frame is provided with a reinforcing box within the reinforcing space, and the reinforcing box is fixedly connected to both the safety frame and the frame.
[0012] The beneficial effect is that by setting up a reinforcing box, the connection between the bottom of the reinforcing box and the frame is changed from a line connection to a surface connection, which can improve the stability of the structure.
[0013] Preferably, as an improvement, both the top of the safety frame and the reinforcing box are provided with process holes for electrophoresis.
[0014] The beneficial effects are as follows: In order to improve production efficiency, the cargo box can be connected first during production. After connection, the front panel structure is uniformly electrophoretic. However, the connection of the front panel structure is tight, leaving some internal space. The flow of the electrophoretic liquid is poor. By setting process holes, the flow of the electrophoretic liquid can be improved. When all the internal spaces in the structural components are coated with electrophoretic liquid, the corrosion resistance of the structure itself is also significantly improved.
[0015] Preferably, as an improvement, the front bulkhead is vertically provided with several second reinforcing ribs, the top and bottom ends of which are fixedly connected to the frame and the crossbeam, respectively.
[0016] Preferably, as an improvement, the front bulkhead has several corrugations horizontally arranged, and the bottom end of the front bulkhead has a folded edge plate horizontally arranged, which is fixedly connected to the crossbeam.
[0017] The beneficial effects are as follows: by setting a corrugated structure, the rigidity of the front bulkhead can be improved, thereby further preventing tubular or cylindrical cargo from passing through the front bulkhead and entering the cab. The setting of the first and second reinforcing ribs can improve the rigidity of the front bulkhead, and at the same time, it can also improve the rigidity of the entire front bulkhead structure.
[0018] Preferably, as an improvement, several rope hooks are fixedly provided at the top of the frame. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the front panel structure assembled in the cargo compartment according to an embodiment of the present utility model;
[0020] Figure 2 This is a front view of the front panel structure of an embodiment of this utility model;
[0021] Figure 3 for Figure 2 A partial structural diagram of the front bulkhead with the protective plate installed at point A in the middle;
[0022] Figure 4 This is a three-dimensional schematic diagram of the front panel structure of an embodiment of the present invention;
[0023] Figure 5 for Figure 4 A partial structural diagram of the reinforcing box at point B installed on the safety frame. Detailed Implementation
[0024] The following detailed description illustrates the specific implementation method:
[0025] The reference numerals in the accompanying drawings include: safety frame 1, front panel 11, guard plate 111, second reinforcing rib 112, folded edge plate 113, chamfer 13, frame 14, rope hook 141, installation space 15, reinforcement space 16, first reinforcing rib 161, reinforcement box 162, process hole 2, and crossbeam 3.
[0026] Example
[0027] like Figures 1-2 The diagram shows a cargo box front panel structure, including an arched safety frame 1. The mounting frame is made of C-shaped channel steel, which is roll-formed and bent into an arch shape. The C-shaped channel steel has a web and symmetrically arranged wing plates on both sides of the web. The wing plates are perpendicular to the web, and a square groove of the C-shaped channel steel is formed between the wing plates and the web on both sides. The top of the safety frame 1 has several process holes 2 on its web for electrophoresis liquid flow in the electrophoresis process. When the wing plates on both sides of the web at the bottom of the safety frame 1 are manufactured, the sharp corners of the wing plates away from the web are cut off, thereby forming a chamfer 13 at the bottom of the safety frame 1. The same chamfer 13 is opened on both sides of the bottom of the safety frame 1.
[0028] like Figure 1 , Figure 2 , Figure 4 As shown, the web of the cargo box transverse beam 3 is vertically arranged. The wing plate of the vertical part of the safety frame 1 near the transverse beam 3 is tangent to and fixedly welded to the web of the transverse beam 3, thereby fixing the safety frame 1 to the transverse beam 3. A frame 14 is horizontally fixedly welded at the boundary between the upper arched part and the lower rectangular part of the safety frame 1. The frame 14 is also set as a C-shaped channel steel. The web of the frame 14 is horizontally arranged and located at the top. A rope hook 141 is fixedly welded to the top of the frame 14 on its web to provide more fixing positions for cargo installation. Both ends of the frame 14 are embedded in the square groove of the safety frame 1. The wing plates of the frame 14 and the safety frame 1 are tangent to each other. The frame 14 is fixed to the safety frame 1 by welding the wing plates of the frame 14 and the safety frame 1. A reinforcing space 16 is formed between the top of the frame 14 and the upper arched part of the safety frame 1. Several first reinforcing ribs 161 are vertically fixed in the reinforcing space 16 of the safety frame 1. The first reinforcing ribs 161 are also C-shaped channel steel. The top of the first reinforcing ribs 161 is embedded in the square groove of the safety frame 1, and the bottom end abuts against the web of the frame 14. The reinforcing ribs are fixedly connected to the safety frame 1 and the frame 14 by welding.
[0029] like Figure 5 As shown, a reinforcing box 162 is fixedly welded between the inner frame 14 of the reinforced space 16 and the safety frame 1. The reinforcing box 162 is embedded in the square groove of the safety frame 1 and a sealing plate is provided at its bottom end. The sealing plate abuts against the frame 14 and is fixedly welded. Wing plates are also provided on both sides of the reinforcing box 162. The reinforcing box 162 and the wing plates of the safety frame 1 are fixedly welded respectively. The reinforcing box 162 also has a process hole 2 for the flow of electrophoretic liquid during the electrophoresis process. Since a cavity is formed between the reinforcing box 162 and the safety frame 1, the electrophoretic liquid can flow through the electrophoretic liquid on the reinforcing box 162 into the cavity formed between the reinforcing box 162 and the safety frame 1 for coating during the electrophoresis process, which can improve the corrosion resistance. The reinforcing ribs are symmetrically arranged on both sides of the safety frame 1.
[0030] like Figures 2-3 As shown, an installation space 15 for installing the front panel 11 is formed between the bottom square groove of the frame 14, the safety frame 1, and the cross beam 3. During the production of the front panel 11, several horizontal corrugations are rolled by a corrugating rolling equipment, and a horizontal folded edge plate 113 is set at the bottom of the front panel 11 through a folding process. When installing the front panel 11, the top of the front panel 11 is embedded into the square groove of the frame 14, and the two sides of the front panel 11 are embedded into the square groove of the safety frame 1. The corresponding parts of the front panel 11 are fixedly welded to the frame 14 and the safety frame 1 through a welding process. The horizontal folded edge plate 113 of the front panel 11 is fixedly connected to the top of the cross beam 3 by bolts.
[0031] like Figures 2-3As shown, the front bulkhead 11 is vertically provided with several second reinforcing ribs 112. The top of the second reinforcing ribs 112 is embedded in the square groove of the frame 14, and the bottom is fixedly connected to the horizontal side beam 3 by bolts. At the same time, the vertical part of the second reinforcing ribs 112 is fixedly welded to the front bulkhead 11. The front bulkhead 11 is also horizontally provided with a guard plate 111. The guard plate 111 is vertically provided with a connecting plate for connecting with the front bulkhead 11. The connecting plate is fixedly welded to the front bulkhead 11. The guard plate 111 is made by bending forming process and is designed above the engine exhaust catalyst. Its purpose is to prevent combustibles from falling onto the catalyst and causing a fire. For different vehicle models, the installation position of the catalyst is also different. The position of the guard plate 111 can be adjusted according to the position of the catalyst to accurately protect the catalyst. When the position of the catalyst is exactly below the reinforcing rib, the horizontal part of the guard plate 111 can be cut to allow the reinforcing rib to be embedded, so as to achieve a lightweight structure.
[0032] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A cargo box front panel structure, characterized in that: It includes a safety frame, a front panel installed on the safety frame, the safety frame being fixedly connected to the crossbeam, and chamfers on both sides of the bottom of the safety frame to avoid the gas cylinder. A guard plate is horizontally installed on the front panel to prevent combustibles from falling into the engine exhaust catalyst.
2. The front panel structure according to claim 1, characterized in that: The safety frame is horizontally installed with a frame. The bottom of the frame, the top of the safety frame and the crossbeam form an installation space for installing the front bulkhead. The front bulkhead is located in the installation space, and the bottom of the front bulkhead is fixedly connected to the crossbeam.
3. The front panel structure according to claim 2, characterized in that: A reinforcing space is formed between the top of the frame and the safety frame, and several first reinforcing ribs are vertically arranged in the reinforcing space.
4. The front panel structure according to claim 3, characterized in that: The safety frame is located within the reinforced space and has a reinforcing box, which is fixedly connected to both the safety frame and the frame.
5. The front panel structure according to claim 4, characterized in that: Both the top of the safety frame and the reinforcing box have process holes for electrophoresis.
6. The front panel structure according to claim 5, characterized in that: The front panel is vertically provided with several second reinforcing ribs, the top and bottom of which are fixedly connected to the frame and the crossbeam, respectively.
7. The front panel structure according to claim 2, characterized in that: The front bulkhead has several corrugations horizontally, and a folded edge plate is horizontally installed at the bottom of the front bulkhead. The folded edge plate is fixedly connected to the crossbeam.
8. The front panel structure according to claim 3, characterized in that: Several rope hooks are fixedly installed at the top of the frame.