A commercial vehicle expansion tank bracket

Abstract

This utility model discloses an expansion tank bracket for commercial vehicles, including a circular tube beam as the main support beam; multiple sheet metal brackets are fixed to the circular tube beam by welding; the sheet metal brackets together constitute the expansion tank fixing structure and are bolted to the cab mount. The invention employs a circular tube-sheet metal structure and welding to form an expansion tank bracket, which is then bolted to the cab mount. The advantages of this invention are its simple structure, reliability, high strength, and ability to effectively prevent bracket cracking caused by expansion tank vibration.

Description

Technical Field

[0001] This utility model relates to the field of water tank bracket technology, specifically to a commercial vehicle expansion water tank bracket. Background Technology

[0002] Commercial vehicles have a wide range of uses, and their operating environments are complex and changeable with many uncontrollable factors. The expansion tank is filled with coolant, has a large mass and volume, and vibrates significantly under complex and changeable road conditions, making the expansion tank bracket prone to damage. To address the risk of commercial vehicles being forced to stop due to damage to the expansion tank caused by external factors, a reliable expansion tank bracket is proposed. Summary of the Invention

[0003] The purpose of this utility model is to provide a commercial vehicle expansion tank bracket in order to solve the technical problems existing in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A commercial vehicle expansion tank bracket, comprising:

[0006] The circular tubular beam serves as the main supporting beam.

[0007] Multiple sheet metal brackets are fixed to the circular tube beam by welding.

[0008] The sheet metal brackets together form the expansion tank fixing structure and are mounted on the cab by bolts.

[0009] In some embodiments, the plurality of sheet metal brackets include a first sheet metal bracket for connecting the rear suspension of the cab and a fifth sheet metal bracket for fixing the expansion tank.

[0010] In some embodiments, a second sheet metal bracket welded between the circular tube beam and the fifth sheet metal bracket is also included to enhance the structural connection strength.

[0011] In some embodiments, the second sheet metal bracket has an L-shaped structure, with its vertical side welded to the circular tube beam and its horizontal side welded to the fifth sheet metal bracket.

[0012] In some embodiments, a third sheet metal bracket, which is simultaneously welded to the circular tube beam and the fifth sheet metal bracket, is also included to strengthen the strength of the far end of the bracket.

[0013] In some embodiments, the third sheet metal bracket is located at the cantilever end of the fifth sheet metal bracket, and the welding point of the third sheet metal bracket to the circular tube beam is ≥50mm away from the welding point of the fifth sheet metal bracket.

[0014] In some embodiments, plastic caps are provided at both ends of the circular tube beam to seal the pipe openings.

[0015] In some embodiments, the plastic cap is an interference-fit polyethylene cap with a waterproof flange on its outer edge.

[0016] In some embodiments, all connection points between the sheet metal brackets and the circular tube beams are made by continuous full welding.

[0017] In some embodiments, the first sheet metal bracket, the second sheet metal bracket, the third sheet metal bracket, and the fifth sheet metal bracket together form a four-point support structure, wherein the fifth sheet metal bracket is provided with an array of expansion tank mounting holes.

[0018] The beneficial effects that a commercial vehicle expansion tank bracket disclosed in this application may bring include, but are not limited to:

[0019] Structural reinforcement: The bending stiffness is improved through the composite structure of circular tube beam and sheet metal;

[0020] Vibration suppression: The four-stage support layout reduces the amplitude of water tank vibration;

[0021] Rust prevention optimization: The plastic plug effectively prevents moisture intrusion and extends service life;

[0022] Reliable process: Continuous full welding eliminates stress concentration points and avoids weld cracking. Attached Figure Description

[0023] Figure 1 This is a front view of the expansion tank support;

[0024] Figure 2 This is a side view of the expansion tank support;

[0025] Figure 3 This is a top view of the expansion tank support;

[0026] Figure 4 This is an axonometric view of the expansion tank support.

[0027] In the diagram, 1-circular tube beam, 2-first sheet metal bracket, 3-second sheet metal bracket, 4-third sheet metal bracket, 5-fifth sheet metal bracket, 6-plastic plug. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0029] Conversely, this application covers any substitutions, modifications, equivalent methods, and schemes made within the spirit and scope of this application as defined in the claims. Furthermore, to provide the public with a better understanding of this application, certain specific details are described in detail below. However, this application can be fully understood by those skilled in the art even without these detailed descriptions.

[0030] like Figure 1-4 As shown, a commercial vehicle expansion tank bracket includes: a circular tube beam 1 and multiple sheet metal brackets, wherein the circular tube beam 1 serves as the main support beam; the multiple sheet metal brackets are fixed to the circular tube beam 1 by welding; the sheet metal brackets together constitute the expansion tank fixing structure and are installed in the cab by bolts.

[0031] The technical solution of this application adopts a circular tube-sheet metal structure and uses welding to form an expansion tank bracket, which is then bolted to the cab mounting. The circular tube beam 1 serves as the core support beam, utilizing its high bending stiffness of its annular cross-section to withstand multi-directional loads under complex road conditions. Multiple sheet metal brackets are integrated onto the circular tube beam 1 by welding, collectively forming the fixed base of the expansion tank and achieving rigid positioning of the expansion tank. The advantages of this tank bracket are its simple and reliable structure, high strength, and effective prevention of bracket cracking caused by expansion tank vibration.

[0032] In some embodiments, the plurality of sheet metal brackets include a first sheet metal bracket 2 for connecting the rear suspension of the cab and a fifth sheet metal bracket 5 for fixing the expansion tank.

[0033] The first sheet metal bracket 2 is welded to the middle of the round tube beam 1 as a suspension connection interface. The size can be set to 4×Φ12mm mounting holes with a hole spacing of ±0.1mm.

[0034] Stress design: 5mm thick plate, bearing the main load transmitted by the vibration of the whole vehicle.

[0035] The fifth sheet metal bracket 5 is welded parallel to the side of the circular tube beam 1, serving as the base plate for the water tank installation. It can be fitted with 6×Φ8mm stamped mounting holes arranged in a 2×3 array. The surface is galvanized to a thickness ≥8μm to prevent coolant corrosion.

[0036] Design intent: By separating the suspension connection from the water tank fixing function, stress interference can be avoided.

[0037] In some embodiments, a second sheet metal bracket welded between the circular tube beam and the fifth sheet metal bracket is further included to enhance the structural connection strength. The second sheet metal bracket has an L-shaped structure, with its vertical side welded to the circular tube beam and its horizontal side welded to the fifth sheet metal bracket.

[0038] An L-shaped second sheet metal bracket 3 is added between the circular tube beam and the fifth sheet metal bracket. The vertical side height of the L-shaped second sheet metal bracket can be set to 40mm, and it is welded to the point of maximum curvature of the circular tube beam; the horizontal side height can be set to 30mm, overlapping the fifth sheet metal bracket with an overlap of ≥15mm and a bending radius of R5mm to avoid stress concentration. This converts the cantilever load of the fifth sheet metal bracket into the bending moment of the circular tube beam, reducing the deformation at the far end and improving the structural strength.

[0039] In some embodiments, a third sheet metal bracket is also included, which is simultaneously welded to the circular tube beam and the fifth sheet metal bracket, to strengthen the strength of the distal end of the bracket. The third sheet metal bracket 4 is added and simultaneously welded to the distal ends of the circular tube beam 1 and the fifth sheet metal bracket 5, with a welding point spacing of ≥50mm, forming an anti-torsional triangular region.

[0040] In some embodiments, the third sheet metal bracket is located at the cantilever end of the fifth sheet metal bracket, and the welding point of the third sheet metal bracket to the circular tube beam is ≥50mm away from the welding point of the fifth sheet metal bracket.

[0041] In some embodiments, plastic caps 6 are provided at both ends of the circular tube beam for sealing the pipe openings. The plastic caps are interference-fit polyethylene caps with waterproof flanges on their outer edges.

[0042] In some embodiments, all connection points between the sheet metal brackets and the circular tube beams are continuously fully welded. All connection points are continuously fully welded, and fatigue tests show no cracks in the welds, thus improving service life.

[0043] In some embodiments, the first sheet metal bracket, the second sheet metal bracket, the third sheet metal bracket, and the fifth sheet metal bracket together form a four-point support structure, wherein the fifth sheet metal bracket is provided with an array of expansion tank mounting holes. The four-point support structure disperses vibration energy to four damping zones, thereby reducing the amplitude of the water tank vibration.

[0044] 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 commercial vehicle expansion tank bracket, characterized by, include: The circular tube beam serves as the main supporting beam. Multiple sheet metal brackets are fixed to the circular tube beam; Multiple sheet metal brackets together form the expansion tank fixing structure and are installed in the cab.

2. The expansion tank support according to claim 1, characterized in that: The plurality of sheet metal brackets include a first sheet metal bracket for connecting the rear suspension of the cab and a fifth sheet metal bracket for fixing the expansion tank.

3. The expansion tank support according to claim 2, characterized in that: It also includes a second sheet metal bracket welded between the circular tube beam and the fifth sheet metal bracket to enhance the structural connection strength.

4. The expansion tank support according to claim 3, characterized in that: The second sheet metal bracket has an L-shaped structure, with its vertical side welded to the circular tube beam and its horizontal side welded to the fifth sheet metal bracket.

5. The expansion tank support according to claim 3, characterized in that: It also includes a third sheet metal bracket that is simultaneously welded to the circular tube beam and the fifth sheet metal bracket, for strengthening the strength of the far end of the bracket.

6. The expansion tank support according to claim 5, characterized in that: The third sheet metal bracket is located at the cantilever end of the fifth sheet metal bracket, and the welding point of the third bracket to the circular tube beam is ≥50mm away from the welding point of the fifth sheet metal bracket.

7. The expansion tank support according to claim 1, characterized in that: The circular tube beam is equipped with plastic caps at both ends for sealing the pipe openings.

8. The expansion tank support according to claim 7, characterized in that: The plastic cap is an interference-fit polyethylene cap with a waterproof flange on its outer edge.

9. The expansion tank support according to claim 1, characterized in that: All connection points between sheet metal brackets and round tube beams are made using continuous full welding.

10. The expansion tank support according to claim 5, characterized in that: The first sheet metal bracket, the second sheet metal bracket, the third sheet metal bracket and the fifth sheet metal bracket together form a four-point support structure, wherein the fifth sheet metal bracket is provided with an array of expansion tank mounting holes.

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