Air spring assembly, suspension system and vehicle

Abstract

The utility model discloses an air spring assembly, a suspension system and a vehicle, relates to the technical field of vehicles, and aims to solve the problem that when an air spring works, air cannot be exhausted in a dust cover, so that the dust cover is jacked open by compressed air. The air spring assembly comprises an air spring body, a protective shell, a dust cover and a mounting ring, the protective shell surrounds the air spring body and is connected to the air spring body. The dust cover surrounds the air spring body and is connected with the air spring body, and a first inner cavity is formed among the air spring body, the protective shell and the dust cover; the mounting ring surrounds the protective shell and is connected between the dustproof cover and the protective shell; the mounting ring is provided with an airflow channel which is communicated with the first inner cavity and the external space.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially relates to an air spring assembly, suspension system and vehicle. BACKGROUND

[0002] Air spring is the key part in the air suspension system of automobile chassis, wherein, the air bag is the core part in the air spring, and the compressibility of the air in the air bag realizes the elastic effect. However, the air bag is relatively fragile, and the sand and dust brought by the wheel can easily cause the air bag to wear and leak. Therefore, the dust cover needs to be added outside to protect the air bag and improve the service life of the air spring.

[0003] When the air spring works, it will be compressed and stretched due to the up and down movement of the wheel, so that the dust cover is also stretched or compressed, the internal space of the dust cover changes, and the dust cover cannot be exhausted when compressed, which causes the upper end of the dust cover to be opened by the compressed gas and the dust cover to fall off. SUMMARY

[0004] The utility model discloses a kind of air spring assembly, suspension system and vehicle, to solve the problem that dust cover inside is generated and cannot be exhausted when air spring works, which causes dust cover to be opened by compressed gas.

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

[0006] The utility model provides a kind of air spring assembly including air spring body, protective shell, dust cover and mounting ring;Protective shell surrounds air spring body, and is connected to air spring body;Dust cover surrounds air spring body, and is connected with air spring body, and first inner cavity is formed between air spring body, protective shell and dust cover;Mounting ring surrounds protective shell, and is connected between dust cover and protective shell;Mounting ring is equipped with airflow channel, and airflow channel is communicated with first inner cavity and external space.

[0007] The application sets up mounting ring between dust cover and protective shell, mounting ring is equipped with airflow channel, airflow channel is communicated with first inner cavity and external space, when air spring assembly works, air spring body moves relative to protective shell, so that the gas in the first inner cavity formed between air spring body, protective shell and dust cover flows through airflow channel, avoid the gas in first inner cavity being compressed, cause the gas in first inner cavity to increase, and open dust cover.

[0008] In some embodiments of the application, the airflow channel includes an axial segment extending along the axial direction of the mounting ring, the axial segment being in communication with the first inner cavity and the external space.

[0009] Thus, the first inner cavity and the external space are communicated through the axial segment, and the axial segment extends along the axial direction of the mounting ring, so that the gas in the first inner cavity enters or exits the first inner cavity along the axial segment, and the dust cover or the protective shell does not block the air flow channel.

[0010] In some embodiments of the present application, the air flow channel further comprises a circumferential segment extending along the circumferential direction of the mounting ring; the axial segment comprises a first axial segment and a second axial segment, the first axial segment communicates the first inner cavity and the circumferential segment, and the second axial segment communicates the circumferential segment and the external space.

[0011] In this way, the circumferential segment is arranged along the circumferential direction of the mounting ring, and the first axial segment and the second axial segment are both communicated with the circumferential segment, so that the first axial segment and the second axial segment can be arranged at different positions according to different needs, thereby improving the applicability of the mounting ring.

[0012] In some embodiments of the present application, the first axial segment and the second axial segment are respectively located on two sides of the circumferential segment in the axial direction of the mounting ring and are arranged at intervals along the circumferential direction of the mounting ring.

[0013] In this way, the first axial segment and the second axial segment are respectively arranged on two sides of the circumferential segment and are arranged at intervals along the circumferential direction of the mounting ring, so that the air flow channel forms a channel with a bend, and the impurities in the air can be accumulated at the bend of the air flow channel, thereby preventing the impurities from entering the second inner cavity and affecting the normal work of the air spring body.

[0014] In some embodiments of the present application, the number of air flow channels is multiple, and the multiple air flow channels are arranged at intervals along the circumferential direction of the mounting ring.

[0015] In this way, the multiple air flow channels are arranged at intervals along the circumferential direction of the mounting ring, and when one of the air flow channels is blocked or cannot work normally, the remaining air flow channels can still exchange gas between the first inner cavity and the external space, thereby ensuring the gas flow of the mounting ring.

[0016] In some embodiments of the present application, the circumferential segment is recessed from the inner circumferential surface of the mounting ring towards the outer circumferential surface of the mounting ring; and / or, the circumferential segment is recessed from the outer circumferential surface of the mounting ring towards the inner circumferential surface of the mounting ring.

[0017] In this way, compared with arranging the air flow channel inside the mounting ring, the circumferential segment is recessed from the inner circumferential surface of the mounting ring towards the outer circumferential surface of the mounting ring to form the air flow channel; and / or, the circumferential segment is recessed from the outer circumferential surface of the mounting ring towards the inner circumferential surface of the mounting ring to form the air flow channel, thereby facilitating the processing and maintenance of the air flow channel.

[0018] In some embodiments of the present application, the mounting ring is further provided with a mounting groove recessed from an outer circumferential surface of the mounting ring towards an inner circumferential surface of the mounting ring and extending along a circumferential direction of the mounting ring; the mounting groove has an opening and a bottom wall surface oppositely arranged, and the bottom wall surface is located on a side of the opening facing the inner circumferential surface of the mounting ring; and the surrounding section is recessed from the bottom wall surface of the mounting groove towards the inner circumferential surface of the mounting ring.

[0019] In this way, the surrounding section is recessed from the bottom wall surface of the mounting groove towards the inner circumferential surface of the mounting ring, and when the dust cover is connected with the mounting ring, the dust cover closes the opening to form the surrounding section of the airflow channel, thereby reducing the processing steps and lowering the processing cost.

[0020] In some embodiments of the present application, the mounting ring comprises a plurality of mounting portions arranged along a circumferential direction of the mounting ring and sequentially connected in a head-to-tail manner, and at least one of the plurality of mounting portions is provided with the airflow channel.

[0021] In this way, the plurality of mounting portions are arranged along the circumferential direction of the mounting ring and sequentially connected in the head-to-tail manner, and when the mounting ring is assembled, each mounting portion can be arranged in an axial direction of the protective shell, and then each connected mounting portion is connected, without the need to move the mounting ring from one end of the protective shell to a mounting position, thereby facilitating the installation of the mounting ring.

[0022] In some embodiments of the present application, the plurality of mounting portions comprise a first mounting portion and a second mounting portion, the first mounting portion is provided with a first connecting structure, the second mounting portion is adjacent to the first mounting portion, the second mounting portion is provided with a second connecting structure, and the first connecting structure and the second connecting structure are connected.

[0023] In this way, the first connecting structure is arranged on the first mounting portion, the second connecting structure is arranged on the second mounting portion, and the first connecting structure and the second connecting structure are connected, thereby not only avoiding the opening or slotting on the first mounting portion and the second mounting portion to affect the structural strength of the first mounting portion or the second mounting portion.

[0024] In some embodiments of the present application, the first connecting structure comprises a connecting piece and a plurality of first clamping protrusions arranged on the connecting piece, the second mounting portion is provided with a connecting groove, the second connecting structure comprises a second clamping protrusion, the second clamping protrusion is located in the connecting groove and connected with the second mounting portion, the connecting piece is arranged in the connecting groove, and the second clamping protrusion is clamped between two adjacent first clamping protrusions.

[0025] In this way, when the mounting ring is assembled, the connecting piece is arranged in the connecting groove, and the second clamping protrusion is clamped between two adjacent first clamping protrusions, thereby connecting the first connecting structure and the second connecting structure without other connecting components, and further facilitating the connection of the first mounting portion and the second mounting portion.

[0026] In some embodiments of the present application, the mounting portion further comprises a deformation gap, the deformation gap penetrating the mounting ring along an axial direction of the mounting ring; the deformation gap is recessed from an inner circumferential surface of the mounting ring towards an outer circumferential surface of the mounting ring, and / or the deformation gap is recessed from the outer circumferential surface of the mounting ring towards the inner circumferential surface of the mounting ring.

[0027] In this way, the deformation gap is recessed from the inner circumferential surface of the mounting ring towards the outer circumferential surface of the mounting ring, and / or the deformation gap is recessed from the outer circumferential surface of the mounting ring towards the inner circumferential surface of the mounting ring, so that the deformation amount of the deformation gap can be adjusted according to different sizes of the protective shell, the mounting ring can not only adapt to different sizes of the protective shell, but also better match the outer circumferential surface of the protective shell, so that the connection between the mounting ring and the protective shell is more secure, and the mounting ring is prevented from shaking.

[0028] In some embodiments of the present application, the outer circumferential surface of the protective shell comprises a first outer circumferential surface portion, the first outer circumferential surface portion being in contact with the inner circumferential surface of the mounting ring and matching the shape of the inner circumferential surface of the mounting ring.

[0029] In this way, the first outer circumferential surface portion is in contact with the inner circumferential surface of the mounting ring and matches the shape of the inner circumferential surface of the mounting ring, so that the gap between the mounting ring and the protective shell is reduced, the mounting ring is prevented from shaking, and the connection between the mounting ring and the protective shell is more secure.

[0030] In some embodiments of the present application, the dust cover is provided with a fixing member, the fixing member being at least partially located in the mounting groove and connected with the mounting ring.

[0031] In this way, the fixing member is connected with the mounting ring and at least partially located in the mounting groove, the mounting groove can limit the fixing member, the fixing member is prevented from shaking or falling off, and the connection between the mounting ring and the fixing member is more secure.

[0032] In some embodiments of the present application, the air spring body comprises a piston and a bladder skin, the bladder skin is provided with a second inner cavity and a first opening in communication with the second inner cavity, the piston is connected to the bladder skin and covers the first opening; the protective shell surrounds the bladder skin and is connected to the bladder skin; one end of the dust cover is connected with the piston, and the other end of the dust cover is connected with the protective shell through the mounting ring.

[0033] In this way, one end of the dust cover is connected with the piston, and the other end of the dust cover is connected with the protective shell through the mounting ring, so that the dust cover can prevent foreign matters from entering the piston or the bladder skin, and the normal work of the air spring body is affected.

[0034] The present application also provides a suspension system comprising the air spring assembly of any one of the above.

[0035] The present application also provides a vehicle comprising the air spring assembly or the suspension system of any one of the above. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0037] Figure 1 A structural schematic diagram of a vehicle is provided for the present application.

[0038] Figure 2 A structural schematic diagram of an air spring assembly in the prior art is provided for the present application.

[0039] Figure 3 A structural schematic diagram of an air spring assembly is provided for the present application.

[0040] Figure 4 A structural schematic diagram of a mounting ring is provided for the present application.

[0041] Figure 5 A side view of the mounting ring is provided for the present application.

[0042] Figure 6 A top view of the mounting portion is provided for the present application.

[0043] Figure 7 A first assembly view of the mounting ring and the protective shell is provided for the present application.

[0044] Figure 8 A sectional view of the mounting ring is provided for the present application.

[0045] Figure 9 A second assembly view of the mounting ring and the protective shell is provided for the present application.

[0046] Reference signs:

[0047] 1000, vehicle; 1, damping system; 2, vehicle body; 3, vehicle wheel;

[0048] 100, air spring assembly; 10, air spring body; 20, protective shell; 30, dust cover; 40, mounting ring; 31, first inner cavity; 41, airflow passage; 11, piston; 12, bladder skin; 411, axial segment; 412, circumferential segment; 413, first axial segment; 414, second axial segment; 415, mounting groove; 42, mounting portion; 421, first mounting portion; 422, second mounting portion; 423, first connecting structure; 424, second connecting structure; 43, deformation notch. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0050] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or relative position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified, the above directional description can be flexibly arranged in the actual application process under the condition of meeting the relative position relationship shown in the drawings.

[0051] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0052] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "communicating" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be directly connected, or indirectly connected through an intermediate medium. It can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the embodiments of the present application, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, article or device. Without more limitation, the element defined by the sentence "including a" does not exclude the presence of another identical element in the process, article or device including the element.

[0054] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration, in lieu of a preferred or advantageous embodiment. The embodiments or design solutions described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or advantageous than other embodiments or design solutions. In fact, the use of the words such as "exemplary" or "for example" is intended to present the relevant concept in a specific manner.

[0055] In the description of the specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0056] The utility model discloses the following technical scheme:

[0057] As Figure 1 Indicated, the utility model provides a vehicle 1000. Vehicle 1000 can be pure electric vehicle 1000, oil-electric hybrid vehicle 1000, plug-in hybrid vehicle 1000, range-extended electric vehicle 1000, fuel vehicle etc. Vehicle 1000 can also be a sedan, a van, a bus, a truck, a trailer, etc.

[0058] As Figure 1 Indicated, vehicle 1000 includes car body 2 and wheel 3. Car body 2 is used for the person riding and carrying articles, and wheel 3 is installed below car body 2, is used for carrying car body 2, and can roll on the road surface to make vehicle 1000 travel.

[0059] Vehicle 1000 also includes damping system 1. Damping system 1 is arranged between car body 2 and wheel 3, is used for transmitting force and torque between car body 2 and wheel 3, and buffers the impact force that car body 2 receives during the travel of vehicle 1000, to improve the riding or driving comfort.

[0060] The utility model also provides a damping system 1, and damping system 1 can include lower fork arm, air spring assembly 100 and top cover. Top cover is connected with air spring assembly 100, and is connected with car body 2. Lower fork arm is connected with air spring assembly 100 and wheel 3.

[0061] Among them, air spring assembly 100 can carry out height adjustment based on the relationship between air pressure and elastic deformation. Air spring assembly is full of compressed air inside, when increasing the air pressure inside air spring assembly, the pressure of air will make the capsule inside air spring assembly expand, thereby heightening height, on the contrary, when reducing air pressure, capsule shrinks, and height drops accordingly. Air spring assembly 100 works can adjust the spacing between top cover and lower fork arm, thereby adjusting the spacing between car body 2 and wheel 3, to make vehicle 1000 travel more smoothly on the corner and rugged road.

[0062] As Figure 2And Figure 3 As shown in the drawings, when the air spring assembly 100 is in operation, it will be compressed and stretched due to the up and down movement of the wheel, causing the dust cover 30 to also be stretched or compressed, and the internal space of the dust cover 30 will change, which will cause the dust cover 30 to be unable to exhaust when compressed, causing the upper end of the dust cover 30 to be pushed open by the compressed gas, causing the dust cover 30 to fall off.

[0063] In the prior art, a straight surface is provided at the lower end of the dust cover 30, and the circumference is perforated for exhaust, but the straight surface will occupy the design working height of the dust cover 30, and if the stroke of the air spring is large, it may not be able to meet the working stroke of the air spring.

[0064] To solve the above problems, the utility model adopts the following technical scheme:

[0065] As shown in the drawings, Figure 3 And Figure 4 The utility model provides an air spring assembly 100, which comprises an air spring body 10, a protective shell 20, a dust cover 30 and a mounting ring 40; the protective shell 20 surrounds the air spring body 10 and is connected to the air spring body 10; the dust cover 30 surrounds the air spring body 10 and is connected to the air spring body 10, and a first inner cavity 31 is formed between the air spring body 10, the protective shell 20 and the dust cover 30; the mounting ring 40 surrounds the protective shell 20 and is connected between the dust cover 30 and the protective shell 20; the mounting ring 40 is provided with an airflow channel 41, and the airflow channel 41 communicates the first inner cavity 31 with an external space.

[0066] It should be noted that the mounting ring 40 can be connected with the dust cover 30 by clamping, gluing or bolting, and the mounting ring 40 and the protective shell 20 can be connected by clamping, gluing or bolting, and the present application does not limit this.

[0067] Among them, the airflow channel 41 can extend along the axial direction of the mounting ring 40, or extend along the circumferential direction of the mounting ring 40, and the airflow channel 41 can also be a curved channel, and the present application does not limit this.

[0068] In addition, the material of the mounting ring 40 can be rubber, plastic or metal, and the present application does not limit this.

[0069] The application sets the mounting ring 40 between the dust cover 30 and the protective shell 20, the mounting ring 40 is provided with the airflow channel 41, the airflow channel 41 communicates the first inner cavity 31 and the external space, when the air spring assembly 100 works, the air spring body 10 moves relative to the protective shell 20, so that the gas in the first inner cavity 31 formed among the air spring body 10, the protective shell 20 and the dust cover 30 flows through the airflow channel 41, avoiding the gas in the first inner cavity 31 being compressed, causing the gas in the first inner cavity 31 to increase, and the dust cover 30 being pushed open.

[0070] In some embodiments of the application, as shown in Figure 3 The air spring body 10 includes the piston 11 and the bladder skin 12, the bladder skin 12 is provided with the second inner cavity and the first opening communicating with the second inner cavity, the piston 11 is connected to the bladder skin 12 and covers the first opening; the protective shell 20 surrounds the bladder skin 12 and is connected to the bladder skin 12; one end of the dust cover 30 is connected to the piston 11, and the other end of the dust cover 30 is connected to the protective shell 20 through the mounting ring 40.

[0071] It should be noted that the protective shell 20 is used to protect and support the bladder skin 12, and the bladder skin 12 and the protective shell 20 can be connected by clamping, gluing or vulcanization, etc., which is not limited in the application.

[0072] In this way, one end of the dust cover 30 is connected to the piston 11, and the other end of the dust cover 30 is connected to the protective shell 20 through the mounting ring 40, so that the dust cover 30 can avoid entering the piston 11 or the bladder skin 12, thereby affecting the normal work of the air spring body 10.

[0073] In some embodiments of the application, as shown in Figure 3 and Figure 4 The airflow channel 41 includes the axial segment 411 extending along the axial direction of the mounting ring 40, the axial segment 411 communicates with the first inner cavity 31 and the external space.

[0074] It should be noted that the mounting ring 40 can include the first side, the second side, the outer peripheral surface and the inner peripheral surface, the first side and the second side are arranged along the axial direction of the mounting ring 40, the outer peripheral surface is connected to the dust cover 30, and the inner peripheral surface is connected to the protective shell 20, the first side is located in the first inner cavity 31, and the second side is located in the external space, and the axial segment 411 can penetrate the first side and the second side along the axial direction of the mounting ring 40.

[0075] The axial segment 411 can penetrate the inner peripheral surface, or the outer peripheral surface, or the axial segment 411 can be located inside the mounting ring 40, that is, the axial segment 411 does not penetrate the outer peripheral surface or the inner peripheral surface, which is not limited in the application.

[0076] In addition, the airflow channel 41 can include a plurality of axial segments 411, which is not limited in the application.

[0077] Thus, the first inner cavity 31 and the external space are communicated through the axial segment 411, and the axial segment 411 extends along the axial direction of the mounting ring 40, so that the gas in the first inner cavity 31 enters or exits the first inner cavity 31 along the axial segment 411, and the dust cover 30 or the protective shell 20 does not block the airflow passage 41.

[0078] In some embodiments of the present application, as shown in Figure 3 , Figure 4 and Figure 5 , the airflow passage 41 further comprises a circumferential segment 412, which extends along the circumferential direction of the mounting ring 40; the axial segment 411 comprises a first axial segment 413 and a second axial segment 414, the first axial segment 413 communicates the first inner cavity 31 and the circumferential segment 412, and the second axial segment 414 communicates the circumferential segment 412 and the external space.

[0079] It should be noted that the circumferential segment 412 can penetrate the inner circumferential surface or the outer circumferential surface, or the circumferential segment 412 can be located inside the mounting ring 40, that is, the circumferential segment 412 does not penetrate the outer circumferential surface or the inner circumferential surface, and the present application does not limit this.

[0080] Among them, the first axial segment 413 and the second axial segment 414 can be coaxially arranged, or can be arranged at intervals, and the present application does not limit this.

[0081] In addition, the first axial segment 413 can communicate with the end of the circumferential segment 412, or can communicate with the middle of the circumferential segment 412, and the second axial segment 414 can communicate with the end of the circumferential segment 412, or can communicate with the middle of the circumferential segment 412, and the present application does not limit this.

[0082] In this way, the circumferential segment 412 is circumferentially arranged on the mounting ring 40, and the first axial segment 413 and the second axial segment 414 are both communicated with the circumferential segment 412, so that the first axial segment 413 and the second axial segment 414 can be arranged at different positions according to different needs, improving the applicability of the mounting ring 40.

[0083] In some embodiments of the present application, as shown in Figure 3 and Figure 5 , the first axial segment 413 and the second axial segment 414 are respectively located on both sides of the circumferential segment 412 in the axial direction of the mounting ring 40, and are arranged at intervals along the circumferential direction of the mounting ring 40.

[0084] In this way, the first axial segment 413 and the second axial segment 414 are arranged on both sides of the circumferential segment 412 and are arranged at intervals along the circumferential direction of the mounting ring 40, so that the airflow passage 41 forms a channel with a bend, and the impurities in the air can be collected at the bend of the airflow passage 41, avoiding the impurities entering the second inner cavity and affecting the normal work of the air spring body 10.

[0085] In some embodiments of the present application, the number of air flow passages 41 is multiple, and the multiple air flow passages 41 are arranged along the circumference of the mounting ring 40.

[0086] It should be noted that the air flow passage 41 can include one or more circumferential segments 412, and the air flow passage 41 can also include one or more axial segments 411, and the structures of the multiple air flow passages 41 can be the same or different, which is not limited in the present application.

[0087] In this way, the multiple air flow passages 41 are arranged along the circumference of the mounting ring 40, and when one of the air flow passages 41 is blocked or cannot work normally, the remaining air flow passages 41 can still exchange gas between the first inner cavity 31 and the external space, thereby ensuring the gas flow of the mounting ring 40.

[0088] In some embodiments of the present application, the number of air flow passages 41 is four, and the four air flow passages 41 are arranged along the circumference of the mounting ring 40, and each air flow passage 41 includes at least one circumferential segment 412 and at least one first axial segment and at least one second axial segment 414.

[0089] In this way, the number of air flow passages 41 is set to four, and when one of the air flow passages 41 is blocked or cannot work normally, the remaining air flow passages 41 can still exchange gas between the first inner cavity 31 and the external space, thereby ensuring the gas flow of the mounting ring 40.

[0090] In some embodiments of the present application, as shown in Figure 3 and Figure 5 The circumferential segment 412 is recessed from the inner circumferential surface of the mounting ring 40 towards the outer circumferential surface of the mounting ring 40.

[0091] Among them, the axial segment 411 can also be recessed from the inner circumferential surface of the mounting ring 40 towards the outer circumferential surface of the mounting ring 40, which is not limited in the present application.

[0092] In this way, compared to arranging the air flow passage 41 inside the mounting ring 40, the circumferential segment 412 is recessed from the inner circumferential surface of the mounting ring 40 towards the outer circumferential surface of the mounting ring 40 to form the air flow passage 41, which facilitates the processing and maintenance of the air flow passage 41.

[0093] In some embodiments of the present application, as shown in Figure 3 and Figure 5 The circumferential segment 412 is recessed from the outer circumferential surface of the mounting ring 40 towards the inner circumferential surface of the mounting ring 40.

[0094] Among them, the axial segment 411 can also be recessed from the outer circumferential surface of the mounting ring 40 towards the inner circumferential surface of the mounting ring 40, which is not limited in the present application.

[0095] In this way, compared with arranging the airflow passage 41 inside the mounting ring 40, the surrounding section 412 is recessed from the inner circumferential surface of the mounting ring 40 towards the outer circumferential surface of the mounting ring 40 to form the airflow passage 41, which facilitates the processing and maintenance of the airflow passage 41.

[0096] In some embodiments of the present application, the plurality of airflow passages 41 includes a first airflow passage and a second airflow passage, the first airflow passage includes a first surrounding section recessed from the outer circumferential surface of the mounting ring 40 towards the inner circumferential surface of the mounting ring 40, and the second airflow passage includes a second surrounding section 412 recessed from the inner circumferential surface of the mounting ring 40 towards the outer circumferential surface of the mounting ring 40.

[0097] In this way, the airflow passages 41 are arranged on both the inner side and the outer side of the mounting ring 40, and when one of the airflow passages 41 is blocked or cannot work normally, the remaining airflow passages 41 can still exchange gas between the first inner cavity 31 and the external space, thereby ensuring the gas flow of the mounting ring 40.

[0098] In some embodiments of the present application, as shown in Figure 3 and Figure 5 the mounting ring 40 further comprises a mounting groove 415 recessed from the outer circumferential surface of the mounting ring 40 towards the inner circumferential surface of the mounting ring 40 and extending along the circumference of the mounting ring 40; the mounting groove 415 has an opening and a bottom wall surface oppositely arranged, and the bottom wall surface is located on the side of the opening facing the inner circumferential surface of the mounting ring 40; and the surrounding section 412 is recessed from the bottom wall surface towards the inner circumferential surface of the mounting ring 40.

[0099] In this way, the surrounding section 412 is recessed from the bottom wall surface of the mounting groove 415 towards the inner circumferential surface of the mounting ring 40, and when the dust cover 30 is connected to the mounting ring 40, the dust cover 30 closes the opening to form the surrounding section 412 of the airflow passage 41, thereby reducing the processing steps and lowering the processing cost.

[0100] In some embodiments of the present application, as shown in Figure 3 , Figure 4 and Figure 6 the mounting ring 40 comprises a plurality of mounting portions 42 arranged along the circumference of the mounting ring 40 and sequentially connected end to end, and at least one of the plurality of mounting portions 42 is provided with the airflow passage 41.

[0101] It should be noted that the mounting ring 40 can include two mounting portions 42, three mounting portions 42, or four mounting portions 42, etc., which are not limited in the present application.

[0102] Among them, only one installation part 42 of the plurality of installation parts 42 can be provided with the airflow channel 41, several installation parts 42 can be provided with the airflow channel 41, and all installation parts 42 can be provided with the airflow channel 41, which is not limited in the application.

[0103] In addition, one installation part 42 can be provided with one airflow channel 41, or multiple airflow channels 41, which is not limited in the application.

[0104] Among them, the plurality of installation parts 42 can be connected by clamping, bolting or pin shaft connection, etc., which is not limited in the application.

[0105] In this way, the plurality of installation parts 42 are arranged along the circumference of the mounting ring 40 and connected end to end in sequence. When assembling the mounting ring 40, each installation part 42 can be arranged in the axial direction of the protective shell 20, and then each connected installation part 42 is connected, without the need to move the mounting ring 40 from one end of the protective shell 20 to the mounting position, facilitating the installation of the mounting ring 40.

[0106] In some embodiments of the application, as shown in Figure 3 and Figure 6 The plurality of installation parts 42 include a first installation part 421 and a second installation part 422, the first installation part 421 is provided with a first connecting structure 423; the second installation part 422 is adjacent to the first installation part 421, the second installation part 422 is provided with a second connecting structure 424, and the first connecting structure 423 and the second connecting structure 424 are connected.

[0107] Among them, the first installation part 421 and the second installation part 422 can be connected by clamping, bolting or pin shaft connection, etc., which is not limited in the application.

[0108] In this way, the first connecting structure 423 is provided on the first installation part 421, and the second connecting structure 424 is provided on the second installation part 422, and the first connecting structure 423 and the second connecting structure 424 are connected, which not only avoids the opening or slotting on the first installation part 421 and the second installation part 422, affecting the structural strength of the first installation part 421 or the second installation part 422.

[0109] In some embodiments of the application, the first connecting structure 423 includes a connecting piece and a plurality of first clamping protrusions provided on the connecting piece; the second installation part 422 is provided with a connecting groove, the second connecting structure 424 includes a second clamping protrusion, the second clamping protrusion is located in the connecting groove and connected with the second installation part 422; the connecting piece is provided in the connecting groove, and the second clamping protrusion is clamped between the two adjacent first clamping protrusions.

[0110] In this way, when the mounting ring 40 is assembled, the connecting member can be arranged in the connecting groove, and the second clamping protrusion is clamped between the two adjacent first clamping protrusions, so that the first connecting structure 423 and the second connecting structure 424 are connected without other connecting components, and the connection between the first mounting portion 421 and the second mounting portion 422 is facilitated.

[0111] In some embodiments of the present application, as shown in Figure 3 and Figure 6 , the mounting portion 42 further comprises a deformation gap 43, which penetrates the mounting ring 40 along the axial direction of the mounting ring 40; the deformation gap 43 is recessed from the inner circumferential surface of the mounting ring 40 to the outer circumferential surface of the mounting ring 40.

[0112] It should be noted that the deformation gap 43 can be arranged between the adjacent airflow channels 41 in the mounting ring 40, and the deformation gap 43 can also pass through the airflow channel 41, which is not limited in the present application.

[0113] In some embodiments of the present application, as shown in and

[0114] , the deformation gap 43 is recessed from the outer circumferential surface of the mounting ring 40 to the inner circumferential surface of the mounting ring 40. Figure 3 Figure 6 In some embodiments of the present application, as shown in and

[0115] , the deformation gap 43 is recessed from the outer circumferential surface of the mounting ring 40 to the inner circumferential surface of the mounting ring 40.

[0116] In this way, the deformation gap 43 is recessed from the inner circumferential surface of the mounting ring 40 to the outer circumferential surface of the mounting ring 40, and / or the deformation gap 43 is recessed from the outer circumferential surface of the mounting ring 40 to the inner circumferential surface of the mounting ring 40, which can adjust the deformation amount of the deformation gap 43 according to different sizes of the protective shell 20. Not only can the mounting ring 40 adapt to protective shells 20 of different sizes, but also the mounting ring 40 can better match the outer circumferential surface of the protective shell 20, so that the connection between the mounting ring 40 and the protective shell 20 is more secure, and the mounting ring 40 is prevented from shaking.

[0117] In some embodiments of the present application, as shown in Figure 7 and Figure 8 , the outer circumferential surface of the protective shell 20 comprises a first outer circumferential surface portion, which is in contact with the inner circumferential surface of the mounting ring 40 and matches the shape of the inner circumferential surface of the mounting ring 40.

[0118] In this way, the first outer peripheral surface portion is in contact with and matches the shape of the inner peripheral surface of the mounting ring 40, the gap between the mounting ring 40 and the protective shell 20 is reduced, the mounting ring 40 is prevented from shaking, and the connection between the mounting ring and the protective shell 20 is more secure.

[0119] In some embodiments of the present application, as shown in Figure 7 and Figure 8 the first outer peripheral surface of the protective shell 20 can include a first vertical peripheral surface, a second vertical peripheral surface, and a groove recessed towards the inner peripheral surface of the protective shell 20, the groove being located between the first vertical peripheral surface and the second vertical peripheral surface, and the inner peripheral surface of the mounting ring 40 includes a first inner peripheral surface and a second inner peripheral surface, the first inner peripheral surface abutting the junction of the groove and the first vertical peripheral surface, and the second inner peripheral surface abutting the junction of the groove and the second vertical peripheral surface.

[0120] In this way, the junction of the groove and the first vertical peripheral surface can prevent the mounting ring 40 from sliding towards the first vertical rear surface, the junction of the groove and the second vertical peripheral surface can prevent the mounting ring 40 from sliding towards the second vertical rear surface, thereby limiting the mounting ring 40 and preventing the mounting ring 40 from shaking, and the connection between the mounting ring and the protective shell 20 is more secure.

[0121] In some embodiments of the present application, as shown in Figure 9 the outer peripheral surface of the protective shell 20 is provided with a limiting groove recessed towards the inner peripheral surface of the protective shell 20, the mounting ring 40 is at least partially located in the limiting groove, and the inner wall surface of the mounting ring 40 is in contact with the groove bottom of the limiting groove.

[0122] In this way, the limiting groove can limit the mounting ring 40 and prevent the mounting ring 40 from shaking, and the connection between the mounting ring and the protective shell 20 is more secure.

[0123] In some embodiments of the present application, the dust cover 30 is provided with a fixing member, the fixing member is at least partially located in the mounting groove 415, and the fixing member is connected with the mounting ring 40.

[0124] It should be noted that the fixing member can be a cable tie, a hoop, or an elastic collar, and the present application does not limit the fixing member.

[0125] In the assembly of the mounting ring 40, the mounting ring 40 is arranged on the outer peripheral surface of the protective shell 20, the dust cover 30 is arranged on the outer peripheral surface of the mounting ring 40, the fixing member is arranged on the outer peripheral surface of the dust cover 30, the fixing member is connected with the mounting ring 40, and then the protective shell 20, the mounting ring 40, the dust cover 30, and the fixing member are sequentially fixed.

[0126] In this way, the fixing member is connected with the mounting ring 40, and the fixing member is at least partially located in the mounting groove 415, the mounting groove 415 can limit the fixing member, avoid the fixing member from shaking or falling off, and make the connection between the mounting ring and the fixing member more firm.

[0127] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air spring assembly (100), characterized by, The air spring body (10) is provided with: a protective shell (20) surrounding the air spring body (10) and connected to the air spring body (10); a dust cover (30) surrounding the air spring body (10) and connected to the air spring body (10), forming a first inner cavity (31) between the air spring body (10), the protective shell (20) and the dust cover (30); a mounting ring (40) surrounding the protective shell (20) and connected between the dust cover (30) and the protective shell (20); the mounting ring (40) is provided with an airflow passage (41) communicating the first inner cavity (31) with an external space. The airflow passage (41) includes an axial section (411) extending along the axial direction of the mounting ring (40), which communicates with the first inner cavity (31) and the external space.

2. The air spring assembly (100) of claim 1, wherein, The airflow passage (41) further includes a circumferential section (412) extending along the circumferential direction of the mounting ring (40).

3. The air spring assembly (100) of claim 2, wherein, The axial section (411) includes: a first axial section (413) and a second axial section (414), the first axial section (413) communicating the first inner cavity (31) with the circumferential section (412), and the second axial section (414) communicating the circumferential section (412) with the external space. The first axial section (413) and the second axial section (414) are respectively located on both sides of the circumferential section (412) in the axial direction of the mounting ring (40) and are arranged in the circumferential direction of the mounting ring (40).

4. The air spring assembly (100) of claim 3, wherein, The number of airflow passages (41) is multiple, and multiple airflow passages (41) are arranged in the circumferential direction of the mounting ring (40).

5. The air spring assembly (100) of claim 3, wherein, The circumferential section (412) is recessed from the inner circumferential surface of the mounting ring (40) towards the outer circumferential surface of the mounting ring (40); and / or, the circumferential section (412) is recessed from the outer circumferential surface of the mounting ring (40) towards the inner circumferential surface of the mounting ring (40).

6. The air spring assembly (100) of any of claims 3-5, wherein, The mounting ring (40) is further provided with a mounting groove (415) recessed from the outer circumferential surface of the mounting ring (40) towards the inner circumferential surface of the mounting ring (40) and extending in the circumferential direction of the mounting ring (40); 7. The air spring assembly (100) of any of claims 3-5, wherein, The mounting groove (415) has an opening and a bottom wall surface oppositely arranged, and the bottom wall surface is located on the side of the opening towards the inner circumferential surface of the mounting ring (40); The circumferential section (412) is recessed from the bottom wall surface towards the inner circumferential surface of the mounting ring (40). The mounting ring (40) includes:

8. The air spring assembly (100) of claim 1, wherein, a plurality of mounting portions (42) arranged in the circumferential direction of the mounting ring (40) and sequentially connected end to end, and at least one of the plurality of mounting portions (42) is provided with the airflow passage (41). The plurality of mounting portions (42) includes:

9. The air spring assembly (100) of claim 8, wherein, a first mounting portion (421) provided with a first connecting structure (423); ​ A second mounting portion (422) is adjacent to the first mounting portion (421), and is provided with a second connecting structure (424).

10. The air spring assembly (100) of claim 9, wherein, The first connecting structure (423) comprises a connecting piece and a plurality of first clamping protrusions arranged on the connecting piece. The second mounting portion (422) is provided with a connecting groove, and the second connecting structure (424) comprises a second clamping protrusion arranged in the connecting groove and connected with the second mounting portion (422). The connecting piece is arranged in the connecting groove, and the second clamping protrusion is clamped between two adjacent first clamping protrusions.

11. The air spring assembly (100) of claim 1, wherein, The mounting portion (42) further comprises: A deformation gap (43) penetrating the mounting ring (40) along the axial direction of the mounting ring (40); The deformation gap (43) is recessed from the inner circumferential surface of the mounting ring (40) to the outer circumferential surface of the mounting ring (40), and / or the deformation gap (43) is recessed from the outer circumferential surface of the mounting ring (40) to the inner circumferential surface of the mounting ring (40).

12. The air spring assembly (100) of claim 8, wherein, The outer circumferential surface of the protective shell (20) comprises a first outer circumferential surface portion in contact with the inner circumferential surface of the mounting ring (40) and matching the shape of the inner circumferential surface of the mounting ring (40).

13. The air spring assembly (100) of claim 7, wherein, The dust cover (30) is provided with a fixing piece at least partially arranged in the mounting groove (415) and connected with the mounting ring (40).

14. The air spring assembly (100) of claim 1, wherein, The air spring body (10) comprises a piston (11) and a bladder skin (12), the bladder skin (12) is provided with a second inner cavity and a first opening communicating with the second inner cavity, and the piston (11) is connected to the bladder skin (12) and covers the first opening. The protective shell (20) surrounds the bladder skin (12) and is connected to the bladder skin (12). One end of the dust cover (30) is connected with the piston (11), and the other end of the dust cover (30) is connected with the protective shell (20) through the mounting ring (40).

15. A suspension system characterized by, The air spring assembly (100) of any one of claims 1-14.

16. A vehicle characterized by comprising: The air spring assembly (100) of any one of claims 1-14 or the suspension system of claim 15.

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