Heavy truck metal plate structure upper vehicle step frame

Abstract

The utility model discloses a heavy truck sheet metal structure upper vehicle step frame, including by sheet metal material makes step frame reinforcing plate and step frame outer plate, step frame outer plate has the step frame structure of being equipped with a plurality of openwork parts in bottom and with the integral forming of step frame structure upside outer plate mounting portion, and outer plate mounting portion is equipped with the bending part of cooperation vehicle side wall main body and a plurality of inner recess, step frame reinforcing plate presents reverse "S" shape, including reinforcing plate mounting portion, reinforcing plate connecting portion and reinforcing plate support portion, reinforcing plate mounting portion and outer plate mounting portion are fixedly installed with the inside and outside of vehicle side wall main body respectively, and reinforcing plate support portion supports step frame structure bottom, the utility model discloses by sheet metal structure punch forming, and the fatigue resistance and the anti -deformation ability are strong, and are favorable to whole car light weight, and the split type design is convenient for improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of heavy-duty truck components, specifically, it is a sheet metal structure upper step frame for heavy-duty trucks. Background Technology

[0002] In recent years, the upper step frames of heavy-duty trucks have mostly been made of plastic. Traditional plastic step frames suffer from complex designs, insufficient impact resistance and fatigue strength, resulting in low safety performance, high development costs, and slow installation. Furthermore, plastic components are prone to cracking under frequent foot traffic and heavy impacts, posing safety hazards, and their lightweight design capabilities are limited, hindering overall vehicle weight reduction.

[0003] The plastic step frames widely used in the market today have complex structures, high mold development costs, long production cycles, and are inconvenient to install and maintain, making them difficult to adapt to the high-load and high-intensity operating conditions of heavy trucks. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a heavy-duty truck sheet metal structure upper step frame, which has the characteristics of simple structure, strong load-bearing capacity and lightweight.

[0005] The present invention solves the above problems through the following technical solution:

[0006] A heavy-duty truck sheet metal structure upper step frame includes a step frame reinforcing plate and a step frame outer plate made of sheet metal material; the step frame outer plate has a concave step frame structure, and the bottom of the step frame structure has several hollowed-out portions; an outer plate mounting portion is integrally formed on the upper side of the step frame structure of the outer plate, and the outer plate mounting portion has a bent portion for cooperating with the vehicle side body and several inner grooves; the step frame reinforcing plate is in the shape of a reverse "S", including an upper reinforcing plate mounting portion, a lower reinforcing plate support portion, and a reinforcing plate connecting portion connecting the reinforcing plate mounting portion and the reinforcing plate support portion; the reinforcing plate mounting portion has a reinforcing plate groove corresponding to the inner groove of the outer plate mounting portion; the reinforcing plate mounting portion and the outer plate mounting portion are respectively fixedly installed to the inner and outer sides of the vehicle side body, and the reinforcing plate support portion supports the bottom of the step frame structure.

[0007] As a further improvement of this utility model, the bottom of the step frame structure is provided with a first small round hole to avoid the hollow part, and the top of the step frame structure is provided with a number of second small round holes.

[0008] As a further improvement of this utility model, a third small circular hole is provided in the inner groove.

[0009] As a further improvement of this utility model, the reinforcing plate groove is provided with a first reinforcing plate hole; and / or the reinforcing plate support portion is provided with a second reinforcing plate hole; and / or the reinforcing plate connecting portion is provided with a third reinforcing plate hole.

[0010] As a further improvement of this utility model, the step frame reinforcing plate is welded to the step frame outer plate; and / or the step frame reinforcing plate and the step frame outer plate are respectively welded to the vehicle side panel body.

[0011] As a further improvement of this utility model, the outer panel mounting part is fitted to the outer side of the vehicle side panel body through the inner groove, and is fixed with screws or welded through the third small round hole in the inner groove.

[0012] As a further improvement of this utility model, the main body of the step frame reinforcing plate and the step frame outer plate are both integrally formed by stamping process.

[0013] As a further improvement of this utility model, the top of the step frame structure is an inclined surface, which is directly connected to the bottom of the step frame structure.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0015] (1) The step frame of this utility model is made of sheet metal to form a step frame reinforcing plate and a step frame outer plate. It has a simple structure, strong fatigue resistance and deformation resistance, and is suitable for heavy truck high load conditions. It is also not easily damaged after long-term use.

[0016] (2) This utility model is formed by stamping process, which is suitable for mass production. The main body adopts a hollow structure, which effectively reduces weight and is conducive to the lightweighting of the whole vehicle. The split design facilitates workshop assembly and after-sales maintenance, improving assembly efficiency. The bottom is equipped with a hollow drainage structure to avoid the accumulation of mud and water, and improve the safety of use. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an existing plastic step frame;

[0018] Figure 2 This is an exploded view of the vehicle step frame of this utility model.

[0019] Figure 3 This is a schematic diagram of the installation of the vehicle step frame according to this utility model;

[0020] Figure 4 This is a side view of the installation of the vehicle step frame according to this utility model.

[0021] Reference numerals: 1. Step frame reinforcing plate; 11. Reinforcing plate mounting part; 12. Reinforcing plate support part; 2. Step frame outer plate; 21. Step frame structure; 211. Hollowed-out part; 212. First small round hole; 22. Outer plate mounting part; 221. Bending part; 222. Inner groove. Detailed Implementation

[0022] 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.

[0023] See attached document Figure 1 Currently, the most commonly used heavy-duty truck step frames are plastic step frames. This structure has a complex design and insufficient impact resistance and fatigue strength, resulting in problems such as low safety performance, high development costs, and slow installation cycle.

[0024] Example:

[0025] Combined with appendix Figure 2-4 As shown, this embodiment provides a heavy-duty truck sheet metal structure upper step frame, which is made by stamping process. Its main structure is composed of a step frame reinforcing plate 1 and a step frame outer plate 2 made of sheet metal material. The design structure is simple, highly flexible, low in development cost, and easy to assemble and maintain after-sales.

[0026] The outer plate 2 of the step frame has a concave step frame structure 21 and an outer plate mounting part 22 integrally formed with the upper side of the step frame structure 21. The bottom of the step frame structure 21 has a number of horizontally hollowed-out parts 211 and a number of first small round holes 212 that avoid the hollowed-out parts 211. The avoidance hollowed-out parts 211 are used for liquid leakage to ensure that rain or mud leaks down from the top and avoids accumulation. The first small round holes 212 are used to install anti-slip plates or cooperate with the step frame reinforcing plate 1. The top of the step frame structure 21 is a sloping surface that is directly connected to the bottom of the step frame structure 21, and the top of the step frame structure 21 has a number of second small round holes for cooperation with the step frame reinforcing plate 1.

[0027] The outer panel mounting part 22 has a bent part 221 on the left or right side for fitting the side body of the vehicle. The outer panel mounting part 22 has a plurality of inner grooves 222 formed at intervals. A third small round hole is formed in the inner groove 222 for fitting with screws to install the step frame outer panel 2.

[0028] The step frame reinforcing plate 1 is generally shaped like an inverted "S", and the upper part is concave to form a reinforcing plate mounting part 11. The reinforcing plate mounting part 11 is provided with a reinforcing plate groove corresponding to the inner groove 222 of the outer plate mounting part 22, and a first reinforcing plate hole is also formed in the reinforcing plate groove. The lower part extends outward to form a reinforcing plate support part 12, and the reinforcing plate support part 12 is formed with a second reinforcing plate hole that mates with the first small round hole 212. The middle part is vertically arranged to form a reinforcing plate connecting part, so as to connect the reinforcing plate mounting part 11 and the reinforcing plate support part 12. The reinforcing plate connecting part is formed with a third reinforcing plate hole that mates with the second small round hole. The first small round hole 212 is also used to install an anti-slip plate to prevent slipping during the process of getting on the vehicle.

[0029] During installation, the outer plate 2 of the step frame is fitted to the outer side of the vehicle's side body through the inner groove 222. Pre-positioning is achieved by the inner groove 222 engaging with the corresponding structure on the outer side of the vehicle's side body. Screws or welding are then used for installation through the third small round hole in the inner groove 222. The outer side of the reinforcing plate mounting part 11 is fitted to the inner side of the vehicle's side body. Pre-positioning is achieved by the reinforcing plate groove engaging with the corresponding structure on the inner side of the vehicle's side body. The step frame reinforcing plate 1 is then welded to the inner side of the vehicle's side body. Preferably, welding is achieved through the first reinforcing plate hole. The reinforcing plate connecting part of the step frame reinforcing plate 1 faces downwards and is supported by the outwardly extending reinforcing plate support part 12, which holds the bottom of the step frame structure 21 of the outer plate 2. The second reinforcing plate hole is connected to the first small round hole 212 with screws, or the reinforcing plate support part 12 is welded to the bottom of the step frame structure 21 through the second reinforcing plate hole; this is not limited. Similarly, the third reinforcing plate hole is connected to the second small round hole with screws or welded.

[0030] This utility model discloses a sheet metal upper step frame for heavy-duty trucks, addressing the problems of low load-bearing strength, high development costs, and poor design flexibility associated with traditional plastic upper step frames. The sheet metal upper step frame consists of a reinforcing plate and an outer plate, offering advantages such as simple design, high load-bearing capacity, low development costs, and lightweight construction. The sheet metal upper step frame itself exhibits strong fatigue and deformation resistance, making it durable and suitable for high-load conditions in heavy-duty trucks. Furthermore, it is formed using a stamping process, facilitating mass production and reducing costs. Its hollow structure further reduces weight. This design effectively eliminates the safety risks associated with cracking from frequent foot traffic and heavy impacts of traditional plastic upper step frames.

[0031] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A sheet metal structure upper step frame for heavy-duty trucks, characterized in that, Includes a step frame reinforcing plate (1) and a step frame outer plate (2) made of sheet metal material; The outer plate of the step frame (2) has a concave step frame structure (21), and the bottom of the step frame structure (21) is provided with several hollow parts (211); the upper side of the step frame structure (21) of the outer plate of the step frame (2) is integrally formed with an outer plate mounting part (22), and the outer plate mounting part (22) is provided with a bent part (221) for cooperating with the main body of the vehicle side panel and several inner grooves (222). The step frame reinforcing plate (1) is in the shape of an inverted "S", including an upper reinforcing plate mounting part (11), a lower reinforcing plate support part (12), and a reinforcing plate connecting part connecting the reinforcing plate mounting part (11) and the reinforcing plate support part (12); the reinforcing plate mounting part (11) is provided with a reinforcing plate groove corresponding to the inner groove (222) of the outer plate mounting part (22); The reinforcing plate mounting part (11) and the outer plate mounting part (22) are fixedly installed to the inner and outer sides of the vehicle side body, respectively, and the reinforcing plate support part (12) supports the bottom of the step frame structure (21).

2. The heavy-duty truck sheet metal structure upper step frame according to claim 1, characterized in that, The bottom of the step frame structure (21) is provided with a first small round hole (212) to avoid the hollow part (211), and the top of the step frame structure (21) is provided with several second small round holes.

3. The heavy-duty truck sheet metal structure upper step frame according to claim 2, characterized in that, The inner groove (222) is provided with a third small round hole.

4. The heavy-duty truck sheet metal structure upper step frame according to claim 3, characterized in that, The reinforcing plate groove is provided with a first reinforcing plate hole; and / or the reinforcing plate support part (12) is provided with a second reinforcing plate hole; and / or the reinforcing plate connecting part is provided with a third reinforcing plate hole.

5. The heavy-duty truck sheet metal structure upper step frame according to claim 1, characterized in that, The step frame reinforcing plate (1) is welded to the step frame outer plate (2); And / or the step frame reinforcing plate (1) and the step frame outer plate (2) are respectively welded to the vehicle side body.

6. The heavy-duty truck sheet metal structure upper step frame according to claim 1, characterized in that, The outer panel mounting part (22) is attached to the outer side of the vehicle side panel body through the inner groove (222), and is fixed with screws or welded through the third small round hole in the inner groove (222).

7. The heavy-duty truck sheet metal structure upper step frame according to claim 1, characterized in that, The main body of the step frame reinforcing plate (1) and the step frame outer plate (2) are both integrally formed by stamping process.

8. A heavy-duty truck sheet metal structure upper step frame according to any one of claims 1-7, characterized in that, The top of the step frame structure (21) is a slope, which is directly connected to the bottom of the step frame structure (21).

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