Fiber-reinforced friction welding forming air cylinder with stone damage prevention function for vehicle

By using a gas storage tank design with long fiber reinforced nylon composite material and an explosion-proof stone impact coating, the problems of low welding efficiency and difficulty in ensuring quality in the existing technology are solved, achieving lightweight and improved stone impact resistance, and ensuring the safety and durability of the gas storage tank.

CN223563987UActive Publication Date: 2025-11-18HUBEI TAOHUA MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202520111413.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-11-18
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing automotive air tank materials suffer from low welding efficiency, difficulty in ensuring quality, susceptibility of metal air tanks to surface defects caused by stone impacts, paint peeling and rust corrosion on iron parts, and surface dents and micro-cracks on aluminum alloy parts, in addition to being relatively heavy.

Method used

The cylinder is made of long fiber reinforced nylon composite material, with external mesh reinforcement and internal reinforcing ribs. Combined with explosion-proof stone impact coating and vibration friction welding technology, it enhances the cylinder's pressure resistance and reduces its weight.

Benefits of technology

It improves the pressure resistance and stone impact resistance of the gas cylinder, reduces weight, lowers welding costs, avoids gas leakage and surface defects in metal welding, and ensures driving safety.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223563987U_ABST
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Abstract

The utility model discloses a vehicle fiber reinforced friction welding forming air cylinder capable of preventing stone damage, which comprises a cylinder body formed by injection molding of long fiber reinforced nylon composite materials, and the cylinder body comprises at least two sections; the grid ribs are arranged outside the cylinder body and cover the cylinder body, and the grid ribs are arranged in a grid shape; and the reinforcing ribs are uniformly distributed in the cylinder body and cling to the inner wall of the cylinder body. A metal air cylinder in the prior art is replaced with a long fiber reinforced nylon composite material to be formed through injection molding, the mass of the air cylinder is reduced, the reinforcing ribs and the grid ribs are evenly designed on the inner wall and the outer wall of the cylinder body, the compression strength of the cylinder body is improved, compared with the prior art, the strength of the air cylinder is improved, meanwhile, the mass is reduced, and the service life of the air cylinder is prolonged. And vibration friction welding is adopted, so that the cost is reduced, and the possibility of air leakage caused by metal welding is effectively avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to clothing design technical field, concretely is a kind of fiber reinforced friction welding forming air cylinder with anti-stone breakage for vehicle. BACKGROUND

[0002] Now most of the car still uses iron air cylinder, part high-end car adopts aluminum alloy air cylinder, aluminum alloy material welding efficiency is low, and welding quality is not easy to guarantee, metal air cylinder also exists being stoned and causes surface defect, iron parts paint coating is stoned and paint falls off after coating, causes appearance difference, rust corrosion. Aluminum alloy parts are stoned and surface is concave, easy to produce microcrack, cause security risk. And the air cylinder of aluminum alloy material is heavy in quality.

[0003] Therefore, the utility model provides a kind of fiber reinforced friction welding forming air cylinder with anti-stone breakage for vehicle to solve the above technical problems. UTILITY MODEL CONTENT

[0004] Utility model purposes: solve the problems in prior art, such as aluminum alloy material welding efficiency is low, and welding quality is not easy to guarantee, metal air cylinder also exists being stoned and causes surface defect, iron parts paint coating is stoned and paint falls off after coating, causes appearance difference, rust corrosion. Aluminum alloy parts are stoned and surface is concave, easy to produce microcrack, cause security risk. And the air cylinder of aluminum alloy material is heavy in quality.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of fiber reinforced friction welding forming air cylinder with anti-stone breakage for vehicle, comprising:

[0007] Cylinder, the cylinder is made of long fiber reinforced nylon composite material injection molding, the cylinder includes at least two segments and is formed into a cylindrical air cylinder with semicircular spherical ends;

[0008] Grid rib, the grid rib is arranged outside the cylinder and covers the cylinder, and the grid rib is arranged in a grid shape;

[0009] Reinforcing rib, the reinforcing rib is evenly distributed inside the cylinder and closely adheres to the inner wall of the cylinder.

[0010] Further, 2-3 air inlet and outlet, sensor interfaces are respectively arranged on the two semicircular spheres of the cylinder, the interface is connected with external pipeline using pre-embedded metal insert;Drainage opening is also provided on the cylinder, the drainage opening interface uses threaded metal insert, and drainage valve is installed in the threaded metal insert.

[0011] Further, the cylinder body is externally provided with a layer of anti-explosion stone impact reinforcing coating, the coating thickness is 2-4mm, the reinforcing coating adopts high toughness and high strength elastomer material, the density is same as water.

[0012] Further, the grid rib thickness is three times of the cylinder body wall thickness.

[0013] Further, the two sections of the cylinder body are respectively provided with tenon structure and mortise structure, under high frequency vibration friction during welding, the tenon melts to fill the recess inside the mortise structure, and the excess material overflows inward, thereby completing the welding.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The application replaces the metal gas storage cylinder in the prior art with long fiber reinforced nylon composite material injection molding, thereby reducing the mass of the gas storage cylinder, the cylinder body inner wall and outer wall are uniformly designed with uniformly distributed reinforcing ribs and grid ribs, the pressure resistance of the cylinder body is increased, compared with the prior art, the mass of the gas storage cylinder is reduced while the strength of the gas storage cylinder is increased, vibration friction welding is adopted, the cost is reduced, and the possibility of gas leakage caused by metal welding is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an explosion structure schematic view of the utility model;

[0017] Figure 2 It is a local structure schematic view of the utility model;

[0018] Figure 3 It is Figure 2 A local enlarged view of the middle A;

[0019] Figure 4 It is a local structure schematic view of the utility model;

[0020] Figure 5 It is Figure 4 A local enlarged view of the middle B.

[0021] In the drawing: 1, cylinder body; 2, grid rib; 3, reinforcing rib; 4, metal insert; 5, drain valve; 6, tenon structure; 7, mortise structure; 8, reinforcing coating. DETAILED DESCRIPTION

[0022] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious for those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0023] The applicant designs as Figures 1-5The illustrated fiber-reinforced friction welding forming air cylinder with anti-stone damage for vehicle includes: a cylinder body 1 made of long fiber reinforced nylon composite material injection molding, the cylinder body 1 includes at least two sections to form a cylindrical air cylinder with semispherical ends; a grid rib 2 arranged outside the cylinder body 1 and covering the cylinder body 1, the grid rib 2 is arranged in a grid shape; and a reinforcing rib 3 uniformly distributed inside the cylinder body 1 and closely attached to the inner wall of the cylinder body 1.

[0024] Further, the fiber-reinforced friction welding forming air cylinder with anti-stone damage for vehicle of the embodiment further includes that two semispherical ends of the cylinder body 1 are respectively provided with 2-3 air inlet and outlet interfaces and sensor interfaces, the interfaces are connected with external pipelines by pre-embedded metal inserts 4; the cylinder body 1 is further provided with a drainage port, the drainage port interface is provided with a threaded metal insert 4, a drainage valve 5 is installed in the threaded metal insert 4, and the interfaces are convenient for installation and connection of various pipelines, sensors and the like; a drainage interface is designed in the middle section of the cylinder body 1 and a manual drainage valve 5 is installed, which is used for periodically discharging water accumulated in the cylinder body 1 to prevent water in the cylinder body 1 from circulating to other parts through the pipeline and damaging associated metal components.

[0025] Further, the fiber-reinforced friction welding forming air cylinder with anti-stone damage for vehicle of the embodiment further includes that a layer of anti-explosion stone impact reinforcing coating is arranged outside the cylinder body 1, the coating thickness is 2-4 mm, the reinforcing coating is made of high-toughness and high-strength elastomer material, has the same density as water, and after the product is welded, a layer of anti-stone impact coating is uniformly sprayed on the outer surface of the air cylinder by using a special spraying equipment, the coating is a polyurea elastomer, is a dual-purpose product for military and civilian use, increases the anti-explosion and anti-stone impact of the air cylinder, cooperates with the external grid rib 2 to prevent stone impact from damaging the cylinder body 1. In addition, the coating also increases the weather resistance and aging resistance of the air cylinder, the coating material has a density close to water, and does not increase the weight of the air cylinder.

[0026] Further, the fiber-reinforced friction welding forming air cylinder with anti-stone damage for vehicle of the embodiment further includes that the thickness of the grid rib 2 is three times the wall thickness of the cylinder body 1.

[0027] Further, the fiber-reinforced friction welding forming air cylinder with anti-stone damage for vehicle of the embodiment further includes that a tenon structure 6 and a mortise structure are respectively arranged on the two sections of the cylinder body 1, under high-frequency vibration friction during welding, the tenon melts to fill the recess inside the mortise structure, and the excess material overflows inward, the welding is completed, the welding process is vibration friction welding, the welding efficiency is high, which is 7-8 seconds, and the metal welding needs more than 5 minutes to improve the efficiency and reduce the cost.

[0028] The long fiber reinforced nylon composite forming cylinder body 1 of the fiber reinforced friction welding forming gas cylinder with anti-stone breaking damage for vehicle in the embodiment adds anti-aging agent and other additives in raw materials, and the product will not be damaged due to aging, and there is no need to worry about the influence of metal rust on appearance and the damage of cylinder body 1 caused by iron material rust, and there is no need to worry about the air leakage caused by aluminum alloy welding defects, which may cause safety accidents. The outer surface is coated with a stone impact coating, which ensures that the part does not appear any abnormality during long-term use, and ensures the safety of driving. The inner wall of the cylinder body 1 is uniformly designed with uniformly distributed reinforcing ribs 3, which increases the pressure strength of the cylinder body 1. The utility model solves the problems existing in the prior art, reduces the weight of the iron material part by 40% compared with the currently used vehicle, does not need surface coating for corrosion resistance, reduces the processing procedure, reduces the cost, and the internal water stored by compressed air is easily corroded, which pollutes and blocks the pipeline and valve, and easily causes safety accidents. Compared with the aluminum alloy part, the weight is reduced by 30%, the welding efficiency of the aluminum alloy is low, and the welding quality is not easy to guarantee. The original metal gas cylinder also has the problem of surface defects caused by stone impact, and the paint coating of the iron part is removed after being impacted by stone, which causes poor appearance and rust corrosion. The surface of the aluminum alloy part is concave after being impacted by stone, and microcracks are generated, which causes safety hazards. After the surface is protected by a special coating, corrosion resistance and weather resistance are good, and the material will not be corroded to produce foreign matters and affect the pipeline valve.

[0029] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A fiber-reinforced friction-welded molded air reservoir for a vehicle with protection against stone breakage, characterized in that It comprises: a cylinder which is injection molded by long fiber reinforced nylon composite material, the cylinder comprises at least two sections to form a cylindrical gas storage cylinder with semispherical ends; a grid rib which is arranged outside the cylinder and covers the cylinder, the grid rib is arranged in a grid shape; a reinforcing rib which is uniformly distributed inside the cylinder and closely adheres to the inner wall of the cylinder.

2. The fiber reinforced friction welded molded air reservoir with stone chip damage prevention for automotive applications of claim 1, wherein, 2-3 gas inlet and outlet and sensor interfaces are respectively arranged on the two semispherical ends of the cylinder, the interfaces are connected with external pipelines by pre-embedded metal inserts; a drain port is further arranged on the cylinder, a threaded metal insert is used for the interface of the drain port, and a drain valve is installed in the threaded metal insert.

3. The fiber reinforced friction welded molded air reservoir with stone chip damage prevention for automotive applications of claim 1, wherein, An explosion-proof and stone-impact-resistant reinforcing coating is arranged outside the cylinder, the thickness of the coating is 2-4 mm, the reinforcing coating is made of a high-toughness and high-strength elastomer material with the same density as water.

4. The fiber reinforced friction welded molded air reservoir with stone chip damage prevention for automotive applications of claim 1, wherein, The thickness of the grid rib is three times the thickness of the cylinder wall.

5. The fiber reinforced friction welded molded air reservoir with protection against stone impact breakage for automotive vehicles according to claim 1, characterized in that, A tenon structure and a mortise structure are respectively arranged on the two sections of the cylinder, under high-frequency vibration and friction during welding, the tenon melts to fill the recesses of the mortise structure, and the excess material overflows inward to complete the welding.