A type of steel door hinge for new energy heavy trucks

Abstract

This utility model relates to the field of vehicle parts technology, specifically to a steel door hinge for new energy heavy trucks, comprising a first steel body and a second steel body, both of which are L-shaped. The connecting ends of both the first and second steel bodies are vertically perforated with positioning and mounting holes. The first and second steel bodies are connected by connecting bolts. The connecting end of the second steel body has a limiting buffer end, which abuts against a mounting position below the connecting end of the first steel body. The mounting position has an abutment groove for the limiting buffer end to abut. This utility model improves the overall structural strength, effectively buffers the impact force of door opening and closing, reduces abnormal noise and wear, enhances connection stability, and strengthens the steel body to improve the durability of the buffer body. The overall structure of this utility model is adapted to the high load requirements of new energy heavy trucks, extends service life, and ensures reliable door opening and closing.

Description

Technical Field This utility model relates to the field of vehicle parts technology, specifically to a steel door hinge for new energy heavy trucks. Background Technology In existing technologies, vehicle door hinges, as core components connecting the door and the vehicle body, directly affect the door's performance and safety due to their structural stability. For new energy heavy-duty trucks, the increased vehicle weight, door size and weight, and more pronounced vibrations during operation compared to ordinary vehicles exacerbate the shortcomings of traditional door hinges. For example, some hinges use simple rigid connection structures, which are prone to loosening due to vibration after prolonged use, affecting the door's sealing performance. Some hinges lack effective limiting and buffering designs, leading to hard impacts during door opening and closing, causing not only abnormal noises but also accelerated component wear and shortening service life. Furthermore, the positioning accuracy of traditional hinges is insufficient, leading to relative displacement after repeated door opening and closing, resulting in uneven gaps between the door and the vehicle body, and even affecting door lock operation. Given the specific usage scenarios of new energy heavy-duty trucks, there is an urgent need for a high-strength, stable, buffer-equipped, and wear-resistant door hinge structure to address the problems of loose connections, rapid wear, and abnormal noises in existing technologies. Therefore, this utility model proposes a steel door hinge for new energy heavy-duty trucks to overcome the deficiencies and shortcomings of existing technologies. Utility Model Content The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a steel door hinge for new energy heavy trucks.

[0001] The technical solution adopted in this utility model is as follows: A type of steel door hinge for new energy heavy trucks includes a first steel body and a second steel body. Both the first and second steel bodies are L-shaped. The connecting ends of the first and second steel bodies are vertically provided with positioning and mounting holes. The first and second steel bodies are connected by connecting bolts. The connecting end of the second steel body is provided with a limiting buffer end. The limiting buffer end abuts against a mounting position below the connecting end of the first steel body. The mounting position has an abutment groove for the limiting buffer end to abut against.

[0002] Preferably, a through-hole embedded block extends below the positioning and mounting hole of the first steel body, the embedded block being a hollow cylindrical structure, and an anti-dislodgement positioning slot is provided at the positioning and mounting hole at the top of the second steel body for the embedded block to be inserted.

[0003] Preferably, the bottom of the embedded block is provided with a graphite layer.

[0004] Preferably, mounting holes are provided on the fixed ends of both the first steel body and the second steel body.

[0005] Preferably, the inner side of the limiting buffer end is provided with a reinforcing steel body, and the abutting groove is formed between the abutting slot and the abutting surface of the limiting buffer end.

[0006] The beneficial effects of this utility model are as follows: The L-shaped steel body, combined with positioning mounting holes and connecting bolts, enhances the overall structural strength; the fit between the limiting buffer end and the abutment groove effectively buffers the impact force of the door opening and closing, reducing noise and wear; the engagement of the embedded block and the anti-dislodgement positioning hole groove enhances connection stability and prevents relative displacement; the graphite layer reduces frictional loss, and the reinforced steel body improves the durability of the buffer. The overall structure of this utility model is adapted to the high-load requirements of new energy heavy-duty trucks, extending service life and ensuring the reliability of door opening and closing. Attached Figure Description Figure 1 : A three-dimensional structural schematic diagram of this utility model.

[0007] Figure 2 : An exploded view of this utility model.

[0008] Figure 3 : A schematic diagram of the structure of the first type of steel body of this utility model.

[0009] Figure 4 : A structural schematic diagram of the first type of steel main body of this utility model from below.

[0010] Figure 5 Side view of the first type of steel body of this utility model.

[0011] Figure 6 : A schematic diagram of the structure of the second type of steel body of this utility model. Detailed Implementation The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0012] like Figure 1-6As shown, a steel door hinge for new energy heavy-duty trucks includes a first steel body 001 and a second steel body 002. Both the first steel body 001 and the second steel body 002 are L-shaped. The lengths of the two right-angled sides of the L-shaped structure are designed according to the connection dimensions between the new energy heavy-duty truck door and the vehicle body to ensure that the opening and closing angle of the door meets the usage requirements after installation. The connecting ends of the first steel body 001 and the second steel body 002 are vertically provided with positioning mounting holes 003. The first steel body 001 and the second steel body 002 are connected by connecting bolts 004. Specifically, the connecting bolts 004 pass through the positioning mounting holes 003 and are tightened with nuts to achieve a rotatable connection between the two. The connecting end of the second steel body 002 is provided with a limiting buffer end 210. The limiting buffer end 210 abuts against the mounting position 110 below the connecting end of the first steel body 001. The mounting position 110 is provided with an abutment groove 120 for the limiting buffer end 210 to abut against.

[0013] Further optimizations to this solution include: Figure 1-6 As shown, a through-hole embedded block 130 extends below the positioning mounting hole 003 of the first steel body 001. The embedded block 130 is a hollow cylindrical structure, and the connecting bolt 004 can pass through the embedded block 130. The positioning mounting hole 003 at the top of the second steel body 002 is provided with an anti-detachment positioning slot 220 for the embedded block 130 to be inserted. The embedded block 130 slides in the anti-detachment positioning slot 220 to prevent the two from detaching radially.

[0014] Further optimizations to this solution include: Figure 1-6 As shown, the bottom of the embedded block 130 is provided with a graphite layer 131. The graphite layer 131 at the bottom of the embedded block 130 is formed by a spraying process and has a thickness of 0.1-0.2mm. This can reduce the coefficient of friction between the embedded block 130 and the anti-detachment positioning hole groove 220 and reduce wear.

[0015] Further optimizations to this solution include: Figure 1-6 As shown, mounting holes 005 are provided on the fixed ends of the first steel body 001 and the second steel body 002.

[0016] Further optimizations to this solution include: Figure 1-6 As shown, the inner side of the limiting buffer end 210 is provided with a reinforcing steel body 211. The reinforcing steel body 211 on the inner side is a thin steel plate stamping part, which is integrally formed with the limiting buffer end 210. This can enhance the structural strength of the buffer body and avoid long-term compression deformation. The abutting groove 120 and the abutting surface of the limiting buffer end 210 are provided with an abutting groove 121. When the door is opened or closed to the limit position, the limiting buffer end 210 is embedded in the abutting groove 121 to achieve elastic limiting and reduce hard impact.

[0017] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of this utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A new energy heavy truck profiled steel door hinge, characterized in that: It includes a first steel body (001) and a second steel body (002). Both the first steel body (001) and the second steel body (002) are L-shaped. The connecting ends of the first steel body (001) and the second steel body (002) are vertically connected with positioning and mounting holes (003). The first steel body (001) and the second steel body (002) are connected by connecting bolts (004). The connecting end of the second steel body (002) is provided with a limiting buffer end (210). The limiting buffer end (210) abuts against the mounting position (110) below the connecting end of the first steel body (001). The mounting position (110) is provided with an abutment groove (120) for the limiting buffer end (210) to abut against.

2. The new energy heavy truck type steel door hinge according to claim 1, characterized in that: The first steel body (001) has a through-hole embedded block (130) extending below the positioning mounting hole (003). The embedded block (130) is a hollow cylindrical structure. The second steel body (002) has an anti-dislodgement positioning slot (220) at the positioning mounting hole (003) at the top for the embedded block (130) to be inserted.

3. The new energy heavy truck type steel door hinge according to claim 2, characterized in that: The bottom of the embedded block (130) is provided with a graphite layer (131).

4. The new energy heavy truck type steel door hinge according to claim 1, characterized in that: Mounting holes (005) are provided on the fixed ends of the first steel body (001) and the second steel body (002).

5. The new energy heavy truck type steel door hinge according to claim 1, characterized in that: The inner side of the limiting buffer end (210) is provided with a reinforcing steel body (211), and the abutting groove (120) and the abutting surface of the limiting buffer end (210) are provided with an abutting groove (121).

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