High-strength anti-collision buffering welding pipe fitting for automobile

By designing high-strength anti-collision buffer welded tubing for automobiles, the problems of low strength of anti-collision beams and high replacement and maintenance costs have been solved, thereby improving impact resistance and reducing maintenance costs.

CN223919271UActive Publication Date: 2026-02-17DANYANG HUADONG MUFFLER CO LTD
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Patent Information

Application Number
CN202520685221.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-12
Publication Date
2026-02-17
Estimated Expiration
2035-04-12

AI Technical Summary

Technical Problem

Existing automotive crash beams are not strong enough and are costly to replace or repair.

Method used

A high-strength automotive anti-collision buffer welded tube was designed, including an anti-collision beam, a mounting base, an anti-collision buffer tube, and reinforcing members. It is fixed by welding and screws. The crumple zone of the anti-collision beam and the structural design of the buffer tube are designed to enhance impact resistance and facilitate replacement in the event of a minor collision.

Benefits of technology

The impact resistance of the crash beam has been improved, reducing the repair costs after minor collisions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-strength anti-collision buffering welding pipe fitting for an automobile. The high-strength anti-collision buffering welding pipe fitting comprises an anti-collision beam, a plurality of fixing seats are arranged on the front portion of the anti-collision beam, anti-collision buffering pipe fittings are welded to the fixing seats, energy absorption boxes are arranged at the two ends of the rear portion of the anti-collision beam, cavity grooves are formed in the top faces of the fixing seats, blocking seats are arranged in the cavity grooves and divide the cavity grooves into two parts, through holes are formed in the blocking seats, and welding positioning grooves are formed in the edges of the cavity grooves. The anti-collision buffering pipe fitting is matched with the welding positioning groove for welding, and a reinforcing piece is arranged in the anti-collision buffering pipe fitting. The fixing seat and the anti-collision buffering pipe fitting are arranged on the front portion of the anti-collision beam, the reinforcing piece is arranged in the anti-collision buffering pipe fitting in a penetrating mode, the anti-collision buffering pipe fitting can further play a role in impact resistance and buffering energy absorption, the anti-collision buffering pipe fitting damaged under slight collision can be conveniently detached and replaced, and the replacement and maintenance cost is reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, and specifically relates to an automobile high-strength anti-collision buffer welding pipe fitting. Background Technique

[0002] The front and rear anti-collision beams of an automobile can play a role in shock resistance and buffering during a collision, reducing the damage to the vehicle body. Since the anti-collision beam structures on some automobiles are simple and the material thickness is relatively thin, they will be deformed and damaged under a minor collision. To improve the strength of the anti-collision beam and reduce the replacement and maintenance costs, an automobile high-strength anti-collision buffer welding pipe fitting is provided. Content of the Utility Model

[0003] In view of this, the technical problem to be solved by the utility model is to provide an automobile high-strength anti-collision buffer welding pipe fitting, which solves the problems of low strength of the anti-collision beam and high replacement and maintenance costs in the prior art.

[0004] To solve the above technical problem, the utility model discloses an automobile high-strength anti-collision buffer welding pipe fitting, including: an anti-collision beam; a plurality of fixed seats are provided at the front part of the anti-collision beam, and anti-collision buffer pipe fittings are welded on the fixed seats. Energy-absorbing boxes are provided at both ends of the rear part of the anti-collision beam. A cavity groove is provided on the top surface of the fixed seat, and a retaining seat is provided in the cavity groove. The retaining seat divides the cavity groove into two parts. A through hole is provided on the retaining seat, and a welding positioning groove is provided at the edge of the cavity groove. The anti-collision buffer pipe fitting is welded in cooperation with the welding positioning groove. A reinforcing member is provided inside the anti-collision buffer pipe fitting.

[0005] Further, the cross-section of the anti-collision beam is in the shape of a "day" character, and collapse parts are provided at its upper edge and lower edge.

[0006] Further, the cross-section of the collapse part is in an inward concave arc shape.

[0007] Further, the cross-section of the anti-collision buffer pipe fitting is elliptical.

[0008] Further, the cross-section of the reinforcing member is quadrilateral, and two relatively arranged sides are in an arc shape, and the other two relatively arranged sides are symmetrical.

[0009] Further, the two symmetrical sides of the reinforcing member are non-parallel.

[0010] Compared with the prior art, the present application can obtain the following technical effects:

[0011] The utility model provides fixed seats and anti-collision buffer pipe fittings at the front part of the anti-collision beam. A reinforcing member is arranged inside the anti-collision buffer pipe fitting. The anti-collision buffer pipe fitting can further play a role in shock resistance and buffer energy absorption. The damaged anti-collision buffer pipe fitting under a minor collision can be conveniently removed and replaced, reducing the replacement and maintenance costs.

[0012] Of course, when implementing any product of the present application, it is not necessarily required to achieve all the above-described technical effects simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0014] Figure 1 is a schematic view of an anti-collision beam according to an embodiment of the present utility model;

[0015] Figure 2 is Figure 1 a schematic cross-sectional view taken along the A-A section in

[0016] REFERENCE SIGNS

[0017] Anti-collision beam 1, fixed seat 2, anti-collision buffer pipe fitting 3, energy absorption box 4, cavity 5, retaining seat 6, through hole 7, welding positioning groove 8, reinforcing member 9, crush section 10, threaded hole 11, screw 12. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will describe in detail the embodiments of the present application in conjunction with the drawings and embodiments, so as to fully understand the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects and implement accordingly.

[0019] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic view of an anti-collision beam according to an embodiment of the present utility model; Figure 2 is Figure 1 a schematic cross-sectional view taken along the A-A section in

[0020] An automotive high-strength anti-collision buffer welded pipe fitting, comprising: an anti-collision beam 1; a plurality of fixed seats 2 are provided at the front of the anti-collision beam 1, and an anti-collision buffer pipe fitting 3 is welded on the fixed seats 2. Energy absorption boxes 4 are provided at both ends of the rear of the anti-collision beam 1. A cavity 5 is provided on the top surface of the fixed seat 2. A retaining seat 6 is provided in the cavity 5. The retaining seat 6 divides the cavity 5 into two parts. A through hole 7 is provided on the retaining seat 6. A welding positioning groove 8 is provided at the edge of the cavity 5. The anti-collision buffer pipe fitting 3 is welded in cooperation with the welding positioning groove 8. A reinforcing member 9 is provided inside the anti-collision buffer pipe fitting 3.

[0021] The cross-section of the anti-collision beam 1 is in the shape of a "day" character, and concave arc-shaped crush sections 10 are provided at the upper and lower edges thereof. The cross-section of the crush sections 10 is in an inward concave arc shape. The crush sections 10 can facilitate the anti-collision beam 1 to crush and absorb energy during a vehicle collision. The anti-collision beam 1 is made of aluminum alloy material.

[0022] The anti-collision beam 1 is arc-shaped, with five threaded holes 11 at its front. The cross-section of the anti-collision buffer tube 3 is elliptical. The reinforcing member 9 is inserted into the anti-collision buffer tube 3 and bent by mechanical equipment to fit the contour of the anti-collision beam 1. The two anti-collision buffer tubes 3 are welded together with the five fixing seats 2 by welding fixtures. Finally, they are fixed to the front of the anti-collision beam 1 with screws 12. The anti-collision buffer tube 3 and the reinforcing member 9 are made of steel. The cross-section of the reinforcing member 9 is quadrilateral, with two opposite sides being arc-shaped and the other two opposite sides being symmetrical. The two symmetrical sides of the reinforcing member 9 are not parallel.

[0023] This utility model provides a fixed seat 2 and a crash buffer tube 3 at the front of the anti-collision beam 1. A reinforcing member 9 is inserted through the crash buffer tube 3. The crash buffer tube 3 can further play the role of impact resistance and buffer energy absorption. The crash buffer tube 3 damaged by minor collisions can be easily removed and replaced, reducing replacement and maintenance costs.

[0024] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An automotive high strength crash can weldment comprising: The application relates to a crash beam. The front part of the crash beam is provided with a plurality of fixing bases, a crash buffer pipe is welded on the fixing bases, energy-absorbing boxes are arranged at the two ends of the rear part of the crash beam, the top surface of the fixing base is provided with a cavity groove, a stop base is arranged in the cavity groove, the stop base divides the cavity groove into two parts, a through hole is arranged on the stop base, the edge of the cavity groove is provided with a welding positioning groove, the crash buffer pipe is welded in cooperation with the welding positioning groove, and the inside of the crash buffer pipe is provided with a reinforcing part.

2. The high strength crash-cushioning welded tubular member for automotive vehicles as defined in claim 1 wherein, The cross section of the crash beam is in the shape of a "sun", and the upper edge and the lower edge of the crash beam are provided with collapse parts.

3. The high strength crash-cushioning welded tubular member for automotive vehicles as defined in claim 2 wherein, The cross section of the collapse part is in the shape of a concave arc.

4. The high strength crash-cushioning welded tubular member for automotive vehicles of claim 1 wherein, The cross section of the crash buffer pipe is in the shape of an ellipse.

5. The high strength crash-cushioning welded tubular member for automotive vehicles as defined in claim 1 wherein, The cross section of the reinforcing part is in the shape of a quadrilateral, two opposite edges of the quadrilateral are in the shape of arcs, and the other two opposite edges are in the shape of symmetry.

6. The high strength crash-cushioning welded tubular member for automotive vehicles as defined in claim 5 wherein, The two symmetrical edges of the reinforcing part are in the shape of non-parallel.