Rear spring upper support of automobile air spring

Abstract

The utility model discloses an upper support of a rear spring of an automobile air spring, which comprises an upper cover, a lower cover is arranged below the upper cover, a channel is arranged on the upper cover, a channel is arranged at the center of the upper cover from top to bottom, an O-shaped ring sealing part and an air tap connecting part are respectively arranged at an opening above the channel from inside to outside, and the O-shaped ring sealing part and the air tap connecting part are respectively connected with the channel. A clamping spring groove and a rigidity valve mounting groove are formed in the channel from top to bottom, the lower cover comprises a plastic shell, and a metal reinforcing ring is arranged on the plastic shell. A rear spring upper support relates to the technical field of automobile parts, adopts plastic injection molding design, replaces metal with plastic, reduces the weight of a product, reduces the cost of the product, adopts a hot gas welding process, ensures tight integral connection, designs the rear spring upper support into a cylindrical shape, ensures that all directions of pressure bearing in the product are consistent, and improves the reliability of the rear spring upper support. And the overall strength of the product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to an automobile air spring rear spring upper support. Background Art

[0002] With the development of the automobile industry and the improvement of people's living standards, consumers have higher and higher requirements for all aspects of automobile performance and operating experience. Air springs were originally a configuration only available on high-end models, but are now also being popularized by various OEMs to mid- and low-end models. Originally, many parts of air springs were metal parts, which would be relatively expensive. In order to meet the needs of mid- and low-end models, the cost of the entire assembly must be reduced. The support seat is the core part of the air spring, which is generally made of metal parts, most of which are aluminum alloy parts. The cost reduction of the support seat is regarded as the top priority of the entire air spring cost reduction. At the same time, with the popularization of new energy vehicles, the cruising range has attracted more attention from consumers. The weight of the vehicle is related to the cruising range of the vehicle, and the lightweighting of air springs has also been put on the agenda.

[0003] In order to follow the market trend, overcome market difficulties and meet customer requirements for products, we have specially developed this type of hollow spring chamber assembly parts that uses plastic instead of metal, solving the headache problem of the main engine manufacturer. Utility Model Content

[0004] The utility model aims to provide a rear spring upper support for an automobile air spring, so as to solve the problems mentioned in the above-mentioned background technology.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The utility model discloses an upper support of a rear spring of an automobile air spring, comprising an upper cover, a lower cover being arranged below the upper cover, a groove being arranged on the upper cover, and a channel being arranged from top to bottom at the center of the upper cover.

[0007] The opening above the groove is respectively provided with an O-ring sealing portion and a gas nozzle connecting portion from inside to outside.

[0008] A retaining ring groove and a stiffness valve installation groove are respectively arranged in the channel from top to bottom.

[0009] The lower cover comprises a plastic shell, and a metal reinforcement ring is arranged on the plastic shell.

[0010] As a further solution of the utility model: the upper cover is formed by plastic injection molding, and the lower cover is formed by integrally injecting a metal reinforcement ring and a plastic shell.

[0011] As a further solution of the utility model: the upper cover and the lower cover are both designed with inner and outer circles of welded ribs.

[0012] As a further solution of the utility model: the interior of the lower cover is hollowed out.

[0013] As a further solution of the utility model: a thread is arranged inside the gas nozzle connecting part.

[0014] Beneficial Effects

[0015] The utility model provides a rear spring upper support for an automobile air spring. Compared with the prior art, it has the following beneficial effects:

[0016] This application adopts a plastic injection molding design to replace metal with plastic, thereby reducing the weight of the product and lowering the cost of the product. A hot air welding process is used to ensure a tight overall connection, and the rear spring upper support is designed to be cylindrical to ensure that the internal pressure of the product is consistent in all directions, thereby improving the overall strength of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is an exploded view of the utility model;

[0019] Figure 3 It is a three-dimensional cross-sectional view of the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the plastic shell of the utility model.

[0021] In the figure: 1. upper cover; 2. lower cover; 21. plastic shell; 22. metal reinforcement ring; 3. O-ring sealing part; 4. air nozzle connecting part; 5. retaining ring groove; 6. stiffness valve mounting groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4As shown, the utility model is a rear spring upper support for an automobile air spring, comprising an upper cover 1, which is designed to be cylindrical to ensure that the internal pressure of the product is consistent in all directions, thereby improving the overall strength of the product and ensuring the consistency of the injection molding and welding of the product in all directions. A lower cover 2 is arranged below the upper cover 1, and the upper cover 1 and the lower cover 2 are formed by hot air welding. In order to ensure that the product can be smoothly injection-molded and demoulded, the rear spring upper support seat is designed to be an upper cover and a lower cover. In order to ensure the connection strength of the upper and lower covers, a hot air welding process is adopted, and the entire welding surface is circular to ensure that the upper and lower covers are tightly connected. At the same time, we analyze the position and thickness of the welding ribs of the product through CAE technology to ensure that the bursting pressure of the entire product can reach more than 3.5Mpa. A groove is arranged on the upper cover 1, and a channel is arranged from top to bottom at the center of the upper cover 1;

[0024] The opening above the groove is provided with an O-ring sealing part 3 and a gas nozzle connecting part 4 from inside to outside, and an O-ring seal is provided on the O-ring sealing part 3 to ensure that the product does not leak;

[0025] The passage is provided with a retaining ring groove 5 and a stiffness valve installation groove 6 from top to bottom. The retaining ring groove mold of the upper cover of the rear spring upper support seat is formed by a shell shrinking method to ensure the size of the retaining ring groove. After the stiffness valve is installed in the installation groove, a metal retaining ring can be installed in the retaining ring groove to lock the position of the stiffness valve to ensure that the stiffness valve is not squeezed out by high pressure. The rear spring upper support seat is designed to have two inner and outer circles, which form independent spaces. The stiffness valve installation groove designed on the upper cover of the rear spring upper support seat can adjust the air pressure of the two independent spaces through the stiffness valve. Through the adjustment of the stiffness valve, the comfort of automobile driving is improved;

[0026] The lower cover 2 includes a plastic shell 21, and a metal reinforcement ring 22 is arranged on the plastic shell 21. The metal reinforcement ring ensures the strength of the product assembly. The surface of the metal reinforcement ring is plated with zinc-nickel alloy and anti-rust treatment.

[0027] The upper cover 1 is made of plastic injection molding, and the plastic material is PA6+GF50. The lower cover 2 is integrally injection molded by a metal reinforcement ring 22 and a plastic shell 21, and the plastic material is PA6+GF50. The rear spring upper support seat is mainly made of plastic injection molding, and plastic is used instead of metal to reduce the weight of the product and reduce the cost of the product.

[0028] The upper cover 1 and the lower cover 2 are both designed with inner and outer circles of welding ribs to ensure the strength of welding.

[0029] The interior of the lower cover 2 is hollowed out, which ensures the strength of the product, saves costs, and makes the product injection molding smoother.

[0030] The interior of the gas nozzle connecting portion 4 is provided with threads.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] The working principle of the utility model is as follows: the upper cover 1 and the lower cover 2 are formed by hot air welding, and the hot air welding process is adopted to ensure that the overall connection is tight, and plastic is used instead of metal to reduce the weight of the product and reduce the cost of the product. The rear spring upper support is designed to be cylindrical to ensure that the internal pressure of the product is consistent in all directions, thereby improving the overall strength of the product. At the same time, the rear spring upper support seat is designed to be inner and outer circles, and the inner and outer circles form independent spaces. The stiffness valve mounting groove 6 designed on the upper cover 1 of the rear spring upper support seat can adjust the air pressure of the two independent spaces through the stiffness valve, and the comfort of automobile driving is improved through the adjustment of the stiffness valve.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rear spring upper support for an automobile air spring, characterized in that: It comprises an upper cover (1), a lower cover (2) is arranged below the upper cover (1), a groove is arranged on the upper cover (1), and a channel is arranged from top to bottom at the center of the upper cover (1); The opening above the groove is provided with an O-ring sealing portion (3) and a gas nozzle connecting portion (4) from the inside to the outside; A retaining ring groove (5) and a stiffness valve installation groove (6) are respectively arranged in the channel from top to bottom; The lower cover (2) comprises a plastic shell (21), and a metal reinforcement ring (22) is provided on the plastic shell (21).

2. The rear spring upper support of an automobile air spring according to claim 1, characterized in that: The upper cover (1) is made of plastic injection molding, and the lower cover (2) is made of a metal reinforcement ring (22) and a plastic shell (21) which are integrally injection molded.

3. The rear spring upper support of an automobile air spring according to claim 1, characterized in that: The upper cover (1) and the lower cover (2) are both designed with inner and outer circles of welded ribs.

4. The rear spring upper support of an automobile air spring according to claim 1, characterized in that: The interior of the lower cover (2) is hollowed out.

5. The rear spring upper support of an automobile air spring according to claim 1, characterized in that: The interior of the air nozzle connecting portion (4) is provided with a thread.

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