Heavy truck gas cylinder limiting structure

Abstract

This utility model discloses a limiting structure for an air tank in heavy-duty trucks, belonging to the field of heavy-duty truck technology. It includes a fixed base, annular bands, and an air tank. The air tank is fixed to the fixed base by two annular bands. A radial limiting band connects the two annular bands, and the radial limiting band has limiting holes. The drain valve of the air tank is located in the limiting holes. This limiting structure effectively restricts the axial displacement and rotation of the air tank through the limiting holes and the drain valve, avoiding installation deviations and component interference, improving assembly accuracy and efficiency. It has a simple structure, high reliability, and is suitable for air tank installation in various types of heavy-duty trucks.

Description

Technical Field

[0001] This utility model belongs to the field of engineering vehicle technology, and in particular relates to a limiting structure for a heavy truck air tank. Background Technology

[0002] In the current heavy-duty truck industry, air reservoirs, as a key component of the vehicle's braking system, are typically located below the horizontal battery box to fully utilize chassis space and optimize the overall vehicle layout. Air reservoirs primarily store compressed air, providing a stable air supply for air braking systems, suspension systems, and other pneumatic equipment. Properly positioning the air reservoir not only helps lower the vehicle's center of gravity and improve driving stability but also facilitates later maintenance and inspection.

[0003] Currently, the most common method for securing air tanks is to use straps to tightly bind them to the vehicle chassis. While this method effectively restricts the movement of the air tank during vehicle operation, preventing displacement or loosening, it has significant drawbacks in actual assembly. Specifically, due to the lack of a clear axial positioning structure, inaccurate positioning of the air tank is prone to occur during installation, especially in factory assembly line operations, easily leading to the air tank being misaligned to one side. If the axial offset is too large, the air tank may interfere with adjacent components, affecting not only the consistency and quality of the overall vehicle assembly but also potentially causing mutual wear between components during use, reducing the reliability and service life of the entire vehicle. Utility Model Content

[0004] To address the problem of inaccurate axial positioning in existing gas cylinders fixed by clamps, which can easily lead to assembly interference and component wear, this utility model provides a gas cylinder limiting structure.

[0005] This utility model is implemented as follows: a gas storage cylinder limiting structure includes a fixed base, an annular band, and a gas storage cylinder. The gas storage cylinder is fixed to the fixed base by two annular bands of the gas storage cylinder. The feature is that a radial limiting band is connected between the two annular bands, and a limiting hole is provided on the radial limiting band. The drain valve of the gas storage cylinder is provided in the limiting hole.

[0006] In the above technical solution, preferably, the annular band includes a tension bolt for locking the annular band, and the two ends of the radial limiting band are provided with sleeves, with the tension bolt passing through the sleeves.

[0007] This air reservoir limiting structure cleverly utilizes the structural feature of the drain valve protruding above the arc-shaped surface of the air reservoir by setting a radial limiting band between two annular bands and creating limiting holes in the limiting bands. This design not only effectively restricts the orientation of the drain valve, thus precisely controlling the installation angle and axial position of the air reservoir, but also prevents the air reservoir from rotating or shifting axially within the bands, ensuring its stability during operation. Furthermore, the limiting structure provides a clear positioning reference during assembly, enabling workers to complete installation quickly and accurately, effectively improving assembly consistency and efficiency, reducing the risk of misassembly and rework, and ultimately enhancing the overall manufacturing quality and reliability of the vehicle. Attached Figure Description

[0008] Figure 1 and Figure 2 This is a schematic diagram of the structure of this utility model;

[0009] Figure 3 This is a schematic diagram of the limiting band in this utility model. Detailed Implementation

[0010] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0011] To address the problem of inaccurate axial positioning in existing air tank fixing methods using clamps, which easily leads to assembly interference and component wear, this utility model provides a limiting structure for heavy-duty truck air tanks. To further illustrate the structure of this utility model, a detailed description is provided below in conjunction with the accompanying drawings:

[0012] Please see Figures 1-3 An air reservoir limiting structure includes a fixing base 1, an annular band 2, and an air reservoir 3. The air reservoir is fixed to the fixing base by two annular bands. Specifically, the fixing base is a battery box fixed to the side of the vehicle beam. The annular bands are fixed to its lower part by bolts. The axis of the annular bands is perpendicular to the axis of the vehicle beam.

[0013] A radial limiting band 4 is connected between the two annular bands. The radial limiting band is a metal strip structure, with its two ends connected to the two annular bands. The limiting band 4 extends approximately radially relative to the axis of the gas storage cylinder in space. A limiting hole 41 is provided on the radial limiting band. The diameter of the limiting hole is slightly larger than the outer diameter of the drain valve on the gas storage cylinder 3, allowing the drain valve 5 to be inserted into the limiting hole during installation, thereby achieving dual limiting of the gas storage cylinder in both the axial and rotational directions. A flexible sealing ring can be optionally provided at the edge of the limiting hole to prevent direct metal-to-metal wear between the drain valve and the limiting hole under vibration.

[0014] Furthermore, the annular band is a stainless steel strip component that can be manufactured in parts. One end has a sleeve 42, and the other end has a threaded hole. The sleeve is a slightly curved ring structure, which is connected to the other end by a tension bolt 6 through a threaded engagement, thereby achieving the fastening and locking of the annular band. The tension bolt passes through the end sleeve of the radial limiting band and is used to simultaneously lock the two annular bands and the overall structure of the limiting band, ensuring that the limiting band does not slip when tightened.

[0015] During the assembly process, the air reservoir is first placed between two annular bands, and the drain valve is inserted into the limiting hole on the limiting band. Then, the tension bolts on the two annular bands are tightened to firmly fix the air reservoir to the fixed base. At the same time, because the drain valve is fitted with the limiting hole, the position of the air reservoir in the axial direction is precisely limited, avoiding installation misalignment. In addition, the constraint of the drain valve by the limiting hole can also prevent the air reservoir from rotating within the bands, thereby significantly improving the consistency and reliability of the assembly.

[0016] This structure fully utilizes the feature that the drain valve protrudes above the arc surface of the air reservoir. Through the interlocking relationship between the limiting hole and the drain valve, precise positioning of the air reservoir is achieved. This solves the technical problem that existing methods of securing the air reservoir with straps cannot provide axial positioning, effectively preventing assembly interference and component wear caused by air reservoir misalignment. Simultaneously, the limiting structure allows factory assembly workers to quickly complete the positioning operation, improving vehicle assembly efficiency, reducing human error and subsequent maintenance risks, and demonstrating high practicality and potential for widespread adoption.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A limiting structure for a heavy-duty truck air cylinder, comprising a fixed base, an annular band, and an air cylinder, wherein the air cylinder is fixed to the fixed base by two annular bands clamping the air cylinder, characterized in that: The radial limiting belts are connected between the two annular bands, and limiting holes are arranged on the radial limiting belts.

2. The heavy truck air cylinder limiting structure according to claim 1, characterized in that: The annular bands are locked by tension bolts, and the ends of the radial limiting belts are provided with sleeves, and the tension bolts pass through the sleeves.

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