Cover plate for air spring and air spring

Abstract

The utility model relates to the technical field of air springs, and provides a cover plate for an air spring and the air spring. The cover plate for the air spring comprises a cover plate body; the check ring is formed and protrudes out of the side wall of the cover plate body, and a step is formed between the check ring and the first end of the cover plate body; the outer reinforcing ribs are circumferentially distributed on the step at intervals and are connected with the edge of the check ring and the edge of the first end of the cover plate body; the second end of the cover plate body is provided with an annular cavity, and the inner reinforcing ribs are arranged in the annular cavity. According to the cover plate for the air spring, the structural strength can be effectively improved through cooperation of the check ring, the outer reinforcing ribs, the inner reinforcing ribs and other components, and therefore the cover plate for the air spring can be made of light materials such as an integrally-formed plastic part, and the light-weight design is achieved while the structural strength is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air springs, in particular to a cover plate for an air spring and an air spring. Background Art

[0002] Air springs are installed in vehicle suspension to adjust vehicle height and provide cushioning and vibration reduction. Figure 1 The structure of the current air spring is shown in FIG. Figure 1 The air spring is mainly composed of a cover plate 10', a base 20', and a bladder skin 30' connected between the cover plate 10' and the base 20'. The cover plate 10' is used to connect with the vehicle body parts to play a bearing role.

[0003] In order to achieve a good load-bearing effect, the current air spring cover plate 10 ′ usually adopts a metal stamping and welding structure or a metal machined structure, which has the problem that the cover plate 10 ′ is heavy, which is not conducive to lightweight design.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the utility model, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of this, the utility model provides a cover plate for an air spring and an air spring, which effectively improves the structural strength of the cover plate for the air spring through the cooperation of components such as a retaining ring, an external reinforcing rib, and an internal reinforcing rib. Therefore, the cover plate for the air spring can be made of lightweight materials, such as an integrally molded plastic part, thereby achieving a lightweight design while ensuring structural strength.

[0006] One aspect of the utility model provides a cover plate for an air spring, comprising: a cover plate body; a retaining ring formed and protruding from the side wall of the cover plate body, a step being formed between the retaining ring and the first end of the cover plate body; external reinforcing ribs distributed circumferentially at intervals on the step and connecting the edge of the retaining ring and the edge of the first end of the cover plate body; and internal reinforcing ribs, an annular cavity being provided at the second end of the cover plate body, the internal reinforcing ribs being provided in the annular cavity.

[0007] In some embodiments, the internal reinforcing ribs include: first internal reinforcing ribs, which are circumferentially spaced apart in the annular cavity and connect the two end edges of the annular cavity; second internal reinforcing ribs, which are distributed between adjacent first internal reinforcing ribs and are located at the bottom of the annular cavity.

[0008] In some embodiments, the bottom of the annular cavity is arched.

[0009] In some embodiments, the inner reinforcing ribs and the outer reinforcing ribs are evenly distributed at circumferential intervals.

[0010] In some embodiments, a concave cavity for assembling a metal gasket is disposed at the first end of the cover body.

[0011] In some embodiments, the first end of the cover body is provided with a plurality of circles of slots.

[0012] In some embodiments, the air spring cover plate further comprises: a plurality of grooves formed on the side wall of the cover plate body and located between the retaining ring and the second end of the cover plate body.

[0013] In some embodiments, the air spring cover plate further includes: a cavity formed at the second end of the cover plate body; a through hole axially penetrating the cover plate body and connected to the cavity; and a sealing ring groove formed on the side wall of the through hole.

[0014] In some embodiments, the air spring cover is an integrally formed plastic part.

[0015] Another aspect of the present invention provides an air spring, wherein the air spring is equipped with a cover plate for an air spring as described in any of the above embodiments.

[0016] Compared with the prior art, the beneficial effects of the present invention include at least:

[0017] The cover plate for air spring of the utility model plays a positioning role in the installation of the bladder skin of the air spring through the retaining ring protruding from the side wall of the cover plate body; through the step formed between the retaining ring and the first end of the cover plate body, and the external reinforcing ribs circumferentially spaced and distributed on the step, the axial stop bearing capacity of the retaining ring is improved, so that the cover plate can better play the role of bearing the vehicle body; and the external reinforcing ribs connect the edge of the retaining ring and the edge of the first end of the cover plate body to form a triangular structure, which improves stability and structural strength; through the annular cavity provided at the second end of the cover plate body, and the internal reinforcing ribs built into the annular cavity, the structural strength of the second end of the cover plate body can be effectively enhanced, so that the cover plate can withstand the assembly extrusion force and the deformation extrusion force of the buffer block, and at the same time, the axial bearing capacity of the cover plate can be improved.

[0018] Therefore, the cover plate for air spring of the utility model effectively improves the structural strength of the cover plate for air spring through the cooperation of the retaining ring, external reinforcing ribs, internal reinforcing ribs and other components, so that the cover plate for air spring can be made of light materials such as plastic, thereby achieving a lightweight design while ensuring structural strength.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram showing the structure of a current air spring;

[0022] Figure 2 and Figure 3 A schematic diagram of the three-dimensional structure of a cover plate for an air spring in an embodiment of the utility model is shown;

[0023] Figure 4 A schematic cross-sectional view of a cover plate for an air spring in an embodiment of the utility model is shown;

[0024] Figure 5 A schematic structural diagram of an air spring in an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. Instead, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0026] The words "first", "second" and similar words used in the specific description do not indicate any order, quantity or importance, but are only used to distinguish different components. The orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom" and the like are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limitations on the present utility model. The term "plurality" means two or more, unless otherwise clearly and specifically defined. In addition, in the description of the present utility model, when it is said that a device is "connected" to another device, this includes not only direct connections, but also indirect connections through other elements.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present utility model and features in different embodiments may be combined with each other.

[0028] Figure 2 and Figure 3 The three-dimensional structure of the air spring cover plate in the embodiment of the utility model is shown in FIG. Figure 4 The cross-sectional structure of the air spring cover is shown. Figure 5 The structure of the air spring is shown schematically; combined Figures 2 to 5 As shown, the air spring cover plate 10 provided in the embodiment of the utility model comprises:

[0029] Cover plate body 11;

[0030] A retaining ring 12 is formed and protrudes from the side wall of the cover body 11, and a step is formed between the retaining ring 12 and the first end 11a of the cover body 11;

[0031] The outer reinforcing ribs 13 are circumferentially spaced apart on the step and connect the edge of the retaining ring 12 and the edge of the first end 11a of the cover body 11;

[0032] The inner reinforcing rib 14 is disposed at the second end 11 b of the cover body 11 with an annular cavity 111 , and the inner reinforcing rib 14 is disposed in the annular cavity 111 .

[0033] The cover plate 10 for the air spring of the utility model plays a positioning role in the installation of the bladder skin 30 of the air spring through the retaining ring 12 protruding from the side wall of the cover plate body 11; when installing the bladder skin 30, the bladder skin 30 can be put on the side wall of the cover plate body 11 and support the retaining ring 12, and then the bladder skin 30 and the side wall of the cover plate body 11 are clamped together by the clamp 40, and the clamp 40 is also limited by the retaining ring 12 to ensure a stable position. By forming a step between the retaining ring 12 and the first end 11a of the cover plate body 11, and the external reinforcing ribs 13 distributed on the step at circumferential intervals, the axial stop bearing capacity of the retaining ring 12 is improved, so that the cover plate can better play a role in bearing the vehicle body; and the external reinforcing ribs 13 connect the edge of the retaining ring 12 and the edge of the first end 11a of the cover plate body 11 to form a triangular structure, which improves stability and structural strength. By providing an annular cavity 111 at the second end 11b of the cover body 11 and an internal reinforcing rib 14 built into the annular cavity 111, the structural strength of the second end 11b of the cover body 11 is effectively enhanced, so that the cover can resist assembly extrusion (for example, extrusion during the assembly of the bladder skin 30) and deformation extrusion of the buffer block (the buffer block is provided inside the air spring, and the buffer block will deform and squeeze the cover during the operation of the air spring), while also being able to improve the axial bearing capacity of the cover.

[0034] Therefore, the cover plate 10 for the air spring of the utility model effectively improves the structural strength of the cover plate 10 for the air spring through the cooperation of the retaining ring 12, the outer reinforcing ribs 13, the inner reinforcing ribs 14 and other components, so that the cover plate 10 for the air spring can be made of lightweight materials such as plastic, thereby achieving a lightweight design while ensuring structural strength.

[0035] In some embodiments, the air spring cover plate 10 is an integrally formed plastic part, so as to realize a lightweight design of the air spring cover plate 10, and at the same time, in combination with the retaining ring 12, the outer reinforcing rib 13, the inner reinforcing rib 14 and other components, the air spring cover plate 10 has a structural strength that meets the use requirements.

[0036] In some embodiments, the internal reinforcing ribs 14 include: first internal reinforcing ribs 141, which are circumferentially spaced apart in the annular cavity 111 and connect the two end edges of the annular cavity 111; second internal reinforcing ribs 142, which are distributed between adjacent first internal reinforcing ribs 141, and the second internal reinforcing ribs 142 are located at the bottom of the annular cavity 111.

[0037] The first inner reinforcing rib 141 connects the two ends of the annular cavity 111, which can enhance the structural strength of the second end 11b of the cover body 11, so that it can resist assembly extrusion and deformation extrusion of the buffer block. Specifically, when the bladder skin 30 and the clamp 40 are assembled, they will squeeze the side wall of the cover body 11, especially the side wall close to the second end 11b of the cover body 11; during the operation of the air spring, the buffer block built into the cavity 116 will deform and squeeze the inner wall of the second end 11b of the cover body 11; the design of the first inner reinforcing rib 141 connecting the two ends of the annular cavity 111 effectively enhances the structural strength of the second end 11b of the cover body 11, so that the cover body 11 can resist assembly extrusion and deformation extrusion of the buffer block, and maintain a stable structure.

[0038] The second inner reinforcing rib 142 is located at the bottom of the annular cavity 111 , which can improve the axial bearing capacity of the cover plate body 11 and enable the air spring cover plate 10 to better bear the load of the vehicle body.

[0039] In some embodiments, the bottom of the annular cavity 111 is arched, so that the annular cavity 111 has a strong structural strength.

[0040] In some embodiments, the inner reinforcing ribs 14 and the outer reinforcing ribs 13 are evenly distributed at circumferential intervals. In this way, the reinforcing ribs have a uniform and stable effect on the structural reinforcement of the cover body 11. Among them, the specific parameters such as the distribution number and spacing of the outer reinforcing ribs 13, the first inner reinforcing ribs 141, and the second inner reinforcing ribs 142 can be set as needed; for example, the spacing between adjacent first inner reinforcing ribs 141 can be equivalent to the spacing between adjacent outer reinforcing ribs 13, and two second inner reinforcing ribs 142 can be distributed between adjacent first inner reinforcing ribs 141, but it is not limited to this.

[0041] In some embodiments, the first end 11a of the cover body 11 is provided with a cavity 112 for assembling a metal gasket. The metal gasket can be used to enhance the structural strength so that the cover can withstand a greater impact load during the operation of the air spring; depending on the application requirements of the air spring, the first end 11a of the cover body 11 can be machined to form the cavity 112 and the metal gasket can be assembled in the cavity 112.

[0042] In some embodiments, the first end 11a of the cover body 11 is provided with a plurality of circles of slots 113. The air spring cover 10 can be injection molded, and the slots 113 can reduce the wall thickness of the cover, effectively preventing injection shrinkage.

[0043] In some embodiments, the air spring cover 10 further includes: a plurality of grooves 115 formed on the side wall of the cover body 11, located between the retaining ring 12 and the second end 11b of the cover body 11. The grooves 115 serve as a contact surface for the installation of the bladder skin 30, and can increase the friction force after the bladder skin 30 is clamped, thereby ensuring the stability of the bladder skin 30 and improving the air tightness of the bladder skin 30 and the air spring cover 10.

[0044] Furthermore, the air spring cover 10 also includes: a cavity 116 formed at the second end 11 b of the cover body 11 ; a through hole 117 axially penetrating the cover body 11 and communicating with the cavity 116 ; and a sealing ring groove 118 formed on a side wall of the through hole 117 .

[0045] The through hole 117 is for the connecting rod to pass through and extend into the interior of the air spring; a sealing cavity is embedded in the sealing ring groove 118 to achieve sealing cooperation with the connecting rod; a buffer block is sleeved on the connecting rod, and the cavity 116 is used to limit the deformation of the compressed buffer block when the connecting rod moves upward; through the cooperation of the buffer block and the connecting rod, the air spring can achieve buffering and vibration reduction.

[0046] The embodiment of the utility model further provides an air spring, which is equipped with a cover plate 10 for an air spring as described in any of the above embodiments.

[0047] The above-mentioned air spring cover 10 has a light weight and strong structural strength. It is assembled in the air spring and connected to the body parts to achieve the load-bearing function, which can effectively improve the performance of the air spring and enable the air spring to play a better role in bearing the weight of the body, adjusting the height of the body and buffering and reducing vibrations.

[0048] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A cover plate for an air spring, characterized in that: include: Cover plate body; A retaining ring is formed and protrudes from the side wall of the cover body, and a step is formed between the retaining ring and the first end of the cover body; External reinforcing ribs are circumferentially spaced apart on the step and connect the edge of the retaining ring and the edge of the first end of the cover plate body; Internal reinforcing ribs, the second end of the cover plate body is provided with an annular cavity, and the internal reinforcing ribs are arranged in the annular cavity.

2. The air spring cover plate according to claim 1, wherein: The inner reinforcement ribs include: First inner reinforcing ribs are circumferentially spaced and distributed in the annular cavity, and connect two end edges of the annular cavity; The second inner reinforcing ribs are distributed between adjacent first inner reinforcing ribs, and the second inner reinforcing ribs are located at the bottom of the annular cavity.

3. The air spring cover plate according to claim 1, wherein: The bottom of the annular cavity is arched.

4. The cover plate for an air spring according to claim 1, wherein: The inner reinforcing ribs and the outer reinforcing ribs are evenly distributed at circumferential intervals.

5. The air spring cover plate according to claim 1, wherein: The first end of the cover plate body is provided with a concave cavity for assembling a metal gasket.

6. The air spring cover plate according to claim 1, wherein: The first end of the cover body is provided with a plurality of circles of slots.

7. The cover plate for an air spring according to claim 1, wherein: Also includes: A plurality of grooves are formed on the side wall of the cover body and are located between the retaining ring and the second end of the cover body.

8. The cover plate for an air spring according to claim 1, wherein: Also includes: A cavity is formed at the second end of the cover body; A through hole axially passes through the cover body and communicates with the cavity; A sealing ring groove is formed on the side wall of the through hole.

9. The air spring cover plate according to any one of claims 1 to 8, characterized in that: The air spring cover plate is an integrally formed plastic part.

10. An air spring, characterized in that: The air spring is equipped with a cover plate for an air spring according to any one of claims 1 to 9.

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