A truck all-aluminum alloy tailgate structure

By using aluminum alloy profiles to manufacture truck tailgates and locally reinforcing key connection nodes, the problems of heavy weight and easy corrosion of steel tailgates have been solved, achieving lightweighting and improved durability.

CN224276954UActive Publication Date: 2026-05-26ALNAN ALUMINIUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ALNAN ALUMINIUM CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing steel truck tailgates are heavy and prone to rust, increasing the load and energy consumption of trucks, while also affecting their service life.

Method used

The tail plate is made of aluminum alloy profiles, and local reinforcement is carried out at key connection nodes. Taking advantage of the lightweight and high rigidity characteristics of aluminum alloy, combined with wedge-shaped reinforcing plates and reinforcing block groove structures, the connection strength and rigidity are enhanced.

Benefits of technology

It significantly reduces the weight of the tailgate, improves the load-bearing capacity of the connection nodes, extends the service life, and maintains an aesthetically pleasing appearance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an all-aluminum alloy tailgate structure for a truck. The tailgate is composed of several transverse bottom plates connected together. The rear end of the bottom plates is connected to the rear tailgate, and the front end of the bottom plates is connected to the front side beam. The front side beam is made of triangular cross-section aluminum profile and is connected to the hydraulic linkage of the vehicle. The protruding edge of the front side beam is connected to the rear of the truck via a hinge. This utility model has the advantages of light overall weight, good anti-slip effect, high strength of the connection nodes with the vehicle body, and resistance to deformation.
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Description

Technical Field

[0001] This utility model relates to the field of truck component manufacturing technology, specifically to a truck all-aluminum alloy tailgate structure. Background Technology

[0002] A truck tailgate, also known as a truck lifting tailgate, is a hydraulic lifting and unloading device installed at the rear of a truck. It eliminates the need to rely on forklifts or other handling equipment for loading and unloading goods, allowing for convenient and quick loading and unloading anytime, anywhere. The lifting and lowering of the tailgate is typically controlled by a hydraulic cylinder.

[0003] Existing truck tailgates are typically made of steel, which has the following disadvantages: 1. Heavy weight: The tailgate of a medium-sized truck usually weighs over 100kg, increasing the truck's weight and the load on the hydraulic cylinder driving the tailgate, thus increasing energy consumption. 2. Prone to corrosion: The surface coating of steel truck tailgates wears off quickly, and after exposure to wind and rain, it rusts rapidly, affecting the normal use and appearance of the tailgate. Summary of the Invention

[0004] To address the aforementioned issues, this utility model provides an all-aluminum alloy tailgate structure for trucks, which has advantages such as light overall weight, good anti-slip effect, high strength of connection nodes with the vehicle body, and resistance to deformation.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A truck all-aluminum alloy tailgate structure is provided, the tailgate is composed of several transverse bottom plates connected together, the rear end of the bottom plate is connected to the rear tailgate, the front end of the bottom plate is connected to the front side beam, the front side beam is made of triangular cross-section aluminum profile and is connected to the hydraulic linkage of the vehicle; the protruding edge of the front side beam is connected to the rear of the truck through a hinge.

[0007] The aluminum alloy tailgate is entirely assembled and fixed from aluminum alloy profiles. Utilizing the advantages of lightweight and high rigidity of multi-cavity aluminum profiles, the overall weight of the truck tailgate is significantly reduced without changing the rigidity and strength.

[0008] The bottom of the tailplate is provided with several reinforcing plates, which are wedge-shaped and gradually thin towards the tail. The wedge-shaped reinforcing plates are fixed to the bottom plate by welding to enhance the rigidity of the entire bottom of the tailplate and improve its load-bearing capacity.

[0009] The inner cavity of the front beam is provided with a reinforcing block groove in the direction of the hydraulic connecting rod. The reinforcing block is embedded in the groove. Threaded holes and smooth holes are machined on the reinforcing block. Matching through holes are machined on the outer wall of the front beam. Bolts are inserted into the through holes and threaded holes and engaged. The ends of the bolts are anchored with nuts. Rivets are inserted into the through holes and smooth holes and riveted.

[0010] The critical stress points of the hydraulic linkage and tailplate are all loaded on the front beam, making the front beam a key area for design. Aluminum alloy has a lower modulus of elasticity than steel, making it more susceptible to shear failure. Therefore, local reinforcement is required at bolted connection points. This is achieved by embedding reinforcing blocks within the grooves, enhancing the strength of the connection points. Furthermore, the reinforcing components are concealed within the profile cavity, preserving the product's appearance.

[0011] The car's hydraulic cylinders are connected to the front beam via the panel, thereby enabling the hydraulic cylinders to drive the rotation of the entire tailgate.

[0012] The bottom of the rear tailgate has horizontal anti-slip grooves. Their function is to increase the friction when the rear tailgate contacts the ground.

[0013] The bottom plate has side panels at both ends of the profile. The side panels seal the ends of the cavity to prevent foreign objects from entering the cavity and improve the appearance.

[0014] The front beam profile is sealed at both ends with triangular guard plates. This prevents foreign objects from entering the cavity and improves the appearance.

[0015] The adjacent bottom plates, the bottom plate and the rear tail plate, and the bottom plate and the front side beam are connected by a hook-and-groove structure of the profiles. The profiles that are hooked together end to end are tightly interlocked, which improves the connection strength of the various components of the tail plate.

[0016] This utility model has the following beneficial effects:

[0017] 1. All components of this utility model are made of aluminum alloy extruded profiles, which have the characteristics of light weight. According to calculations, the traditional steel tailgate weighs 101kg, while the utility model weighs 80.72kg, which is a significant weight reduction effect.

[0018] 2. This utility model strengthens the key connection points locally, making the connection node between the tail plate and the hydraulic linkage more robust, less prone to damage, and with an increased lifespan.

[0019] 3. This utility model has an attractive appearance and is easy to clean. Attached Figure Description

[0020] Figure 1 This is an elevation view of the present utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the tailplate centerline;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point I;

[0023] Figure 4 for Figure 2 Enlarged structural diagram at point II;

[0024] Figure 5 for Figure 2 Enlarged structural diagram at point III;

[0025] Figure 6 This is a schematic diagram of the installation structure of the front beam section reinforcement block;

[0026] Figure 7 To enhance the structural diagram of the block facade;

[0027] The numbers in the diagram are labeled as follows: 1-bottom plate; 11-side plate; 2-rear tail plate; 3-front beam; 31-reinforcing block groove; 32-reinforcing block; 33-triangular guard plate; 4-reinforcing plate. Detailed Implementation

[0028] Example 1

[0029] A truck all-aluminum alloy tailgate structure is provided. The tailgate is composed of several transverse base plates 1 connected together. The rear end of the base plate 1 is connected to the rear tailgate 2, and the front end of the base plate 1 is connected to the front side beam 3. The front side beam 3 is made of triangular cross-section aluminum profile and is connected to the hydraulic linkage of the truck. The protruding edge of the front side beam 3 is connected to the rear of the truck through a hinge.

[0030] The bottom of the tail plate is provided with several reinforcing plates 4, which are wedge-shaped and gradually become thinner towards the tail.

[0031] The inner cavity of the front beam 3 is provided with a reinforcing block groove 31 in the direction of the hydraulic connecting rod. A reinforcing block 32 is embedded in the reinforcing block groove 31. Threaded holes and smooth holes are machined on the reinforcing block 32. Matching through holes are machined on the outer wall of the front beam 3. Bolts are inserted into the through holes and threaded holes and engaged. The ends of the bolts are anchored with nuts. Rivets are inserted into the through holes and smooth holes and riveted.

[0032] The bottom of the rear tailplate 2 is provided with horizontal anti-slip texture.

[0033] The bottom plate 1 has side plates 11 at both ends of its profile.

[0034] The front beam 3 has triangular guard plates 33 sealing both ends of its profile.

[0035] The adjacent base plates 1, the base plate 1 and the rear tail plate 2, and the base plate 1 and the front side beam 3 are connected by the hook-and-groove structure of the profiles.

Claims

1. A full aluminum alloy tailgate structure for a truck, characterized by, The tail section is composed of several horizontal base plates (1) connected together. The rear end of the base plate (1) is connected to the rear tail section (2), and the front end of the base plate (1) is connected to the front side beam (3). The front side beam (3) is made of triangular cross-section aluminum profile and is connected to the hydraulic linkage of the car. The protruding edge of the front side beam (3) is connected to the rear of the truck through a hinge.

2. The full aluminum alloy tailgate structure of claim 1, wherein: The bottom of the tail plate is provided with several reinforcing plates (4), which are wedge-shaped and gradually become thinner towards the tail.

3. The full aluminum alloy tailgate structure of claim 1, wherein: The inner cavity of the front beam (3) is provided with a reinforcing block groove (31) in the direction of the hydraulic connecting rod. A reinforcing block (32) is embedded in the reinforcing block groove (31). Threaded holes and smooth holes are machined on the reinforcing block (32). Matching through holes are machined on the outer wall of the front beam (3). Bolts are inserted into the through holes and threaded holes and meshed. The ends of the bolts are anchored with nuts. Rivets are inserted into the through holes and smooth holes and riveted.

4. The full aluminum alloy trailer tailgate structure of claim 1, wherein: The bottom of the rear tailplate (2) is provided with horizontal anti-slip texture.

5. The all-aluminum alloy tailgate structure for trucks according to claim 1, characterized in that: The bottom plate (1) has side plates (11) at both ends of the profile.

6. The all-aluminum alloy tailgate structure for trucks according to claim 1, characterized in that: The front beam (3) is sealed at both ends by triangular guard plates (33).

7. The all-aluminum alloy tailgate structure for trucks according to claim 1, characterized in that: The adjacent bottom plates (1), the bottom plate (1) and the rear tail plate (2), and the bottom plate (1) and the front side beam (3) are connected by the hook-and-groove structure of the profile.