CN211820508U - Air spring with elastic reinforcement and automobile suspension device - Google Patents

Abstract

The utility model discloses a take air spring of elasticity reinforcement, include: the leather bag is internally provided with a closed leather bag space for storing compressed gas, wherein the wall body of the leather bag is integrally vulcanized from inside to outside by inner layer rubber, first layer cord fabric, second layer cord fabric and outer layer rubber, and cord threads on the first layer cord fabric and the second layer cord fabric are arranged in an oblique manner; the elastic reinforcing piece is arranged in the leather bag space, and the stretching direction of the elastic reinforcing piece is the same as that of the leather bag. On the basis of the above, the utility model also discloses an automobile suspension device. The utility model discloses an air spring bearing capacity is strong, compact structure, small, can break through narrow and small application space's restriction.

Description

Air spring with elastic reinforcement and automobile suspension device

Technical Field

The utility model relates to a spring field. More specifically, the present invention relates to an air spring with an elastic reinforcement and an automotive suspension.

Background

In vibration damping systems, it is often necessary to apply a resilient element to achieve the damping effect. With the trend of development of a plurality of mechanical devices toward refinement and compactness of structures, especially in the situation where the application space is severely limited, how to ensure the bearing capacity of the elastic element becomes an important problem that the elastic element has to face during design, and the current elastic element still cannot better solve the problem.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.

The inventor finds that in some occasions with heavy load and compact space, such as some SUVs with large design requirements of rear emptying rooms or small and medium-sized partially refitted caravans, it is difficult to design a proper elastic element for damping vibration.

According to the previous solution, if the traditional air spring is applied, at least one serious problem exists, namely that the air spring occupies a larger volume and is not convenient to be arranged in the occasion with limited application space; if metal elastic elements such as a steel plate spring or a spiral spring with a large diameter and the like are adopted, the vibration reduction effect is reduced, the comfort of the vehicle is reduced as a further consequence in the field of vehicles, and the unsprung mass of the metal spring is large due to the large weight of the metal spring, so that the vehicle controllability is correspondingly reduced.

Therefore, how to design an elastic element which has a large load-bearing weight, a very compact structure and a small overall occupied space is a technical problem which is difficult to solve in the field.

In order to solve the technical problem, the utility model discloses a meticulous design and verification have been carried out according to various elastic element's characteristics to the people, think out a new air spring, promptly on the basis of leather bag, introduce the elasticity reinforcement to under the condition that does not change the whole volume of leather bag, with this elasticity reinforcement setting inside the leather bag, with the leather bag organic integration together. In a further optimization, the inventor also made various considerations regarding the specific design of the elastic reinforcement, such as the load-bearing capacity of the elastic reinforcement, how to design the space occupied by the elastic reinforcement to be maximally compressed, so as to avoid excessive occupation of the internal space of the bladder, affecting the elasticity of the bladder itself, and so on.

Under the above utility model discloses think about, the utility model provides a take air spring and automotive suspension of elasticity reinforcement, the utility model discloses an air spring bearing capacity is strong, compact structure, small, can break through the restriction in narrow and small application space.

The utility model discloses a following technical scheme realizes:

first aspect of the present invention

A first aspect provides an air spring with an elastic reinforcement, comprising:

the leather bag is internally provided with a closed leather bag space for storing compressed gas, wherein the wall body of the leather bag is integrally vulcanized from inside to outside by inner layer rubber, first layer cord fabric, second layer cord fabric and outer layer rubber, and cord threads on the first layer cord fabric and the second layer cord fabric are arranged in an oblique manner;

the elastic reinforcing piece is arranged in the leather bag space, and the stretching direction of the elastic reinforcing piece is the same as that of the leather bag.

In some embodiments, the air spring further comprises at least one hoop, and the hoop divides the leather bag space into a plurality of communicated air chambers along the expansion and contraction direction of the leather bag.

In some embodiments, the air chamber is configured to be cylindrical.

In some embodiments, the hoop engages the wall of the bladder to form a unitary structure.

In some embodiments, the resilient reinforcement is a coil spring.

In some embodiments, the air spring further comprises a first sealing element and a second sealing element, which are respectively used for sealing two openings arranged at two ends of the leather bag along the compression direction;

wherein the first sealing element comprises a first sealing block and a first pressing ring, the second sealing element comprises a second sealing block and a second pressing ring, a first anti-skid groove is arranged at the joint of the first sealing block and the inner wall of the leather bag, a second anti-skid groove is arranged at the joint of the second sealing block and the inner wall of the leather bag,

the first sealing block and the second sealing block respectively extend into the corresponding openings and are abutted and connected with the inner wall of the leather bag, and the first pressing ring and the second pressing ring are respectively sleeved on the outer wall of the leather bag at the corresponding positions of the first anti-skidding groove and the second anti-skidding groove so as to respectively press and locate the leather bag in the first anti-skidding groove and the second anti-skidding groove.

In some embodiments, the first rubber pad and the second rubber pad are respectively arranged at two ends of the elastic reinforcing member along the expansion direction; the first rubber pad is arranged between one end of the elastic reinforcing piece and the first sealing block, and the second rubber pad is arranged between the other end of the elastic reinforcing piece and the second sealing block.

In some embodiments, the first sealing block extends towards the elastic reinforcing member to form an accommodating cavity, one end of the elastic reinforcing member is installed in the accommodating cavity, and the second sealing block extends towards the elastic reinforcing member to form a protruding block, and the protruding block extends into a connecting hole formed at the other end of the elastic reinforcing member.

Second aspect of the present invention

A second aspect provides a suspension apparatus for an automobile, comprising:

the air spring, the axle connected with the wheel and the lower swing arm are arranged on the lower portion of the vehicle body;

and one end of the air spring is provided with a first threaded hole for connecting with the lower swing arm, and the other end of the air spring is provided with a second threaded hole for connecting with a load-bearing vehicle body or a vehicle frame.

The technical effects of the embodiment of the utility model include at least:

in some embodiments, the air spring of the present invention maintains a large load-bearing capacity while ensuring its compact structure; so that the bearing device is very suitable for being applied to occasions with heavy bearing weight, compact structure and limited application space.

In some embodiments, the present invention provides an automotive suspension apparatus that improves the comfort of a vehicle ride.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic diagram of an air spring with an elastic reinforcement according to some embodiments of the present invention;

FIG. 2 is another schematic illustration of an air spring with an elastomeric reinforcement according to some embodiments of the present invention;

fig. 3 is a schematic view of the structure of a bladder according to some embodiments of the present invention;

fig. 4 is a schematic view of the internal structure of the wall of the bladder in some embodiments of the present invention;

FIG. 5 is a schematic view of the arrangement of cords on the first ply and the second ply in the wall according to some embodiments of the present invention;

FIG. 6 is a schematic view of the internal structure of an air spring with an elastomeric reinforcement according to some embodiments of the present invention;

FIG. 7 is a further schematic illustration of the internal construction of an air spring with an elastomeric reinforcement according to some embodiments of the present invention;

FIG. 8 is a partial enlarged view of the portion N in FIG. 7;

fig. 9 is a schematic structural view of an automotive suspension assembly according to some embodiments of the present invention;

reference numerals: the air spring with the elastic reinforcement comprises an air spring 100 with the elastic reinforcement, a leather bag 110, a leather bag space 111, a first air chamber 111a, a second air chamber 111b, a wall body 112, inner layer rubber 113, a first layer cord 114, a second layer cord 115, outer layer rubber 116, a hoop 117, a first opening 118, a second opening 119, the elastic reinforcement 120, a connecting hole 121, a limiting hole 122, a first rubber pad 130, a second rubber pad 140, a first sealing block 150, an air inlet hole 151, an accommodating cavity 152, a positioning pin 154, a first threaded hole 153, a first anti-skid groove 155, a second sealing block 160, a convex block 161, a limiting block 162, a second anti-skid groove 163, a second threaded hole 164, a first pressing ring 170, a second pressing ring 180, a wheel 200, an axle 300, a lower swing arm 400, a pull rod 500, a connecting plate 600 and an automobile suspension device 1000.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

First embodiment

As shown in fig. 1 to 8, a first embodiment provides an air spring 100 with an elastic reinforcement, and referring to fig. 1 to 5, the air spring 100 includes:

the leather bag 110 is internally provided with a closed leather bag space 111 for storing compressed gas, wherein the wall body 112 of the leather bag 110 is integrally vulcanized from inside to outside by inner layer rubber 113, first layer cord fabric 114, second layer cord fabric 115 and outer layer rubber 116, and the cord threads on the first layer cord fabric 114 and the second layer cord fabric 115 are arranged in an oblique crossing manner;

and an elastic reinforcement member 120 disposed in the bladder space 111, wherein a stretching direction of the elastic reinforcement member 120 is the same as a stretching direction of the bladder 110.

In this embodiment, the working principle of the leather bag 110 is as follows: compressed gas is introduced into the leather bag space 111, so that the leather bag 110 becomes an elastic element, and the elastic function of the leather bag can be realized by extruding the leather bag 110 during working. The air spring of the leather bag 110 has good buffering performance and good damping effect.

As shown in fig. 3 and 4, the wall 112 of the leather bag 110 (specifically, the wall 112 refers to a leather bag wall) includes a first layer of ply 114 and a second layer of ply 115 besides an inner layer of glue 113 and an outer layer of glue 116, and is integrally vulcanized by the above materials, so that the toughness and the bearing capacity of the leather bag 110 are enhanced, and the service life is prolonged. In addition, the leather bag 110 is vulcanized into a whole, so that the leather bag 110 can be replaced independently, the production efficiency of the leather bag 110 is improved, and the production cost of the leather bag 110 mould and the maintenance cost of the leather bag 110 during use are reduced.

The inner layer rubber 113 and the outer layer rubber 116 may be made of neoprene. In some embodiments, it may also be made of other elastomeric materials, such as silicone rubber, mixed rubbers containing natural rubber and neoprene rubber, and the like.

As shown in fig. 5, the cords of the first layer cord fabric 114 and the second layer cord fabric 115 are arranged in an oblique manner, wherein the oblique arrangement specifically means that the cords of the first layer cord fabric 114 and the cords of the second layer cord fabric 115 are arranged in a non-parallel manner. This arrangement reduces the expanded outer diameter of bladder 110 and increases burst pressure, thereby increasing the operating pressure, load carrying capacity and safety of air spring 100.

In some embodiments, a cord fabric rubber is further disposed between the first layer cord fabric 114 and the second layer cord fabric 115, and the cord fabric rubber is a mixed rubber containing natural rubber and chloroprene rubber.

Further, the elastic reinforcement member 120 is further disposed inside the air spring 100 of the present embodiment, so that the whole bearing capacity of the air spring 100 is shared by the elastic reinforcement member 120 and the leather bag 110, thereby reducing the bearing capacity of the leather bag 110 and prolonging the service life of the leather bag 110.

Due to the introduction of the elastic reinforcement 120, the load-bearing capacity of the air spring 100 as a whole is greatly increased. In the air spring 100 of the present embodiment, the elastic reinforcement 120 is disposed inside the bellows 110, so that the bearing capacity of the air spring is greatly improved without increasing the overall volume of the air spring 100; for this reason, the air spring 100 of the present embodiment is very suitable for applications where the load capacity is heavy, the structure is compact, and the application space is limited.

Further, it should be noted that the elastic reinforcement member 120 may be formed by any object having an elastic function. In this embodiment, the elastic reinforcement 120 is preferably a coil spring, which has a large bearing capacity and can improve the bearing capacity of the air spring as a whole, and secondly, the coil spring has a small volume and a small occupied space, so that the storage capacity of the compressed air in the bladder space 111 is almost negligible, and the diameter or pitch of the spring wire can be changed to design the bearing capacity and stiffness of the air spring.

In certain other embodiments, the elastic reinforcement 120 may also be a gel substance, such as a rubber element with a certain elastic support and expansion capability.

In this embodiment, the air spring 100 further includes at least one hoop 117, and the hoop 117 divides the bladder space 111 into a plurality of connected air chambers along the expansion and contraction direction of the bladder 110.

The number of hoops 117 in this embodiment is 1, and in other embodiments, may be more. The leather bag 110 is sleeved with the hoop 117 in the expansion direction and is divided into two curved bags by the hoop 117, that is, the leather bag space 111 is divided into 2 communicated air chambers, namely a first air chamber 111a and a second air chamber 111b, in the leather bag 110. The hoop 117 limits the expansion of the middle part of the leather bag 110, reduces the external force effect borne by the whole leather bag 110, and prolongs the service life of the leather bag 110.

In this embodiment, the air chamber is cylindrical. Compared with the structure that the air chamber is in an arc shape or other shapes, the cylindrical air chamber increases the internal volume of the air spring, which is beneficial to reducing the rigidity of the air spring and improving the vibration damping capacity.

In this embodiment, the hoop 117 is embedded in the wall 112 of the bladder 110 to form an integral structure.

With continuing reference to fig. 6 and 7 on the basis of fig. 1, in this embodiment, the air spring 100 further includes a first sealing member and a second sealing member, which are respectively used for sealing two openings at two ends of the bellows 110 along the expansion and contraction direction;

wherein, the first sealing element comprises a first sealing block 150 and a first press ring 170, the second sealing element comprises a second sealing block 160 and a second press ring 180, a first anti-skid groove 155 is arranged at the joint of the first sealing block 150 and the inner wall of the leather bag 110, a second anti-skid groove 163 is arranged at the joint of the second sealing block 160 and the inner wall of the leather bag 110,

the first sealing block 150 and the second sealing block 160 extend into the corresponding openings respectively and are in abutting connection with the inner wall of the leather bag 110, and the first pressing ring 170 and the second pressing ring 180 are sleeved on the outer wall of the leather bag 110 at positions corresponding to the first anti-slip groove 155 and the second anti-slip groove 163 respectively so as to press the leather bag 110 into the first anti-slip groove 155 and the second anti-slip groove 163 respectively.

In this embodiment, the two openings are specifically a first opening 118 and a second opening 119;

the first and second sealing blocks 150 and 160 are provided for the purpose of facilitating the connection of the air spring 100 to an external device; one is to provide the air spring 100 as a removable device for easy removal and installation, maintenance or cleaning, etc. The first and second sealing blocks 150 and 160 may be made of metal or plastic material, such as iron, aluminum or nylon.

In addition, in order to introduce compressed gas into the bladder space 111, the first sealing block 150 is further provided with an air inlet 151, and a valve (not shown) is disposed in the air inlet 151.

The first pressing ring 170 and the second pressing ring 180 are provided for tightly sealing the leather bag 110 with the first sealing block 150 and the second sealing block 160. In the sealing measure, the wall body 112 of the leather bag 110 is buckled and pressed on the outer wall through the first pressing ring 170 and the second pressing ring 180; the used buckling and pressing process is simple and mature, the pressing ring is easy to disassemble and assemble, the good sealing performance of the leather bag 110 can be guaranteed, and the leather bag 110 is convenient to replace.

More specifically, the first pressing ring 170 and the second pressing ring 180 are made of steel materials, and the shapes of the first pressing ring and the second pressing ring are matched with the appearance of the leather bag 110 and are circular ring structures; wherein the surface of the pressure ring is subjected to trivalent chromium electroplating treatment. The pressure ring of the embodiment has at least the following excellent performances: simple structural design has reduced the clamping ring manufacturing cost, and trivalent chromium electroplating treatment has improved the corrosion resisting property and the environmental protection of clamping ring.

Further, a first anti-slip groove 155 is arranged at the joint of the first sealing block 150 and the inner wall of the leather bag 110, and a second anti-slip groove 163 is arranged at the joint of the second sealing block 160 and the inner wall of the leather bag 110; so as to press the leather bag 110 into the first anti-slip groove 155 and the second anti-slip groove 163, respectively. The sealing performance of the leather bag 110 after being connected with the first sealing block 150 and the second sealing block 160 can be improved.

Still further, the number of the first anti-slip groove 155 and the second anti-slip groove 163 is plural. Fig. 8 shows a specific structure of the second anti-slip groove 163, in which the depth d of the second anti-slip groove 163 is set to be half the height h. In this embodiment, the second anti-slip groove 163 is configured to be semi-cylindrical, that is, a cross section of the second anti-slip groove 163 is semi-circular, and as shown in fig. 8, the semi-circular radius is r, and h is 2d is 2 r. This scheme has ensured the leakproofness of withholding when having reduced the processing cost.

As for the structure of the first anti-slip groove 155, since it is similar to the second anti-slip groove 163, it is sufficient to design with reference to the second anti-slip groove 163.

It should be noted that, in this embodiment, the elastic reinforcement member 120 is disposed between the first sealing block 150 and the second sealing block 160 along the extending direction, and is abutted against the first sealing block 150 and the second sealing block 160, respectively.

Further, in this embodiment, the elastic reinforcement member 120 is provided with a first rubber pad 130 and a second rubber pad 140 at two ends along the expansion direction.

Specifically, the first rubber pad 130 is disposed between one end of the elastic reinforcing member 120 and the first sealing block 150, and the second rubber pad 140 is disposed between the other end of the elastic reinforcing member 120 and the second sealing block 160, so as to provide a buffering function between the elastic reinforcing member 120 and the first sealing block 150 and the second sealing block 160, especially when the elastic reinforcing member 120 is a metal spring, the elastic reinforcing member can be used as a buffering medium to prevent abnormal noise caused by friction between the elastic reinforcing member 120 and the first sealing block 150 and the second sealing block 160, and also protect the elastic reinforcing member 120, the first sealing block 150 and the second sealing block 160.

As shown in fig. 6, in this embodiment, the first sealing block 150 extends toward the elastic reinforcing member 120 to form an accommodating cavity 152, one end of the elastic reinforcing member 120 is installed in the accommodating cavity 152, the second sealing block 160 extends toward the elastic reinforcing member 120 to form a protrusion 161, and the protrusion 161 extends into the connecting hole 121 formed at the other end of the elastic reinforcing member 120.

When the air spring is assembled, the first rubber pad 130 is installed in the accommodating cavity 152, the second rubber pad 140 is sleeved on the projection 161 and is abutted against the second sealing block 160 (correspondingly, a through hole matched with the size of the projection 161 is formed in the second rubber pad 140, the second rubber pad 140 is sleeved on the projection 161 through the through hole, and for the through hole, not shown in the figure), then one end of the elastic reinforcing member 120 is inserted into the accommodating cavity 152 and is abutted against the first rubber pad 130, and the connecting hole 121 at the other end is sleeved on the projection 161 and is abutted against the second rubber pad 140. The air spring structure in the embodiment can be more compact and more stable due to the structural design.

Furthermore, a limiting block 162 is arranged on the protruding block 161, a limiting hole 122 matched with the limiting block 162 is arranged on the elastic reinforcing member 120, when the protruding block 161 is inserted into the connecting hole 121, the limiting block 162 is clamped in the limiting hole 122, and the stability of the second sealing block 160 after being connected with the elastic reinforcing member 120 is further improved.

It should be noted that the limiting block 162 and the protrusion 161 may be movably connected, or may be fixedly connected, or even an integrally formed structure.

The assembly of air spring 100 can be carried out as follows:

s1, buckling one of the openings (namely the first opening) of the leather bag in the corresponding first anti-skid groove 155 of the first sealing block 150 through the first press ring 170, so that the corresponding inner wall of the opening of the leather bag is sunk into the first anti-skid groove 155; then, the first rubber pad 130, the elastic reinforcing member 120, the second rubber pad 140 and the second sealing block 160 are sequentially mounted on the first sealing block 150;

s2, the other opening (i.e. the second opening) of the leather bag is buckled and pressed in the corresponding second anti-slip groove 163 of the second sealing block 160 through the second press ring 180, so that the corresponding inner wall of the leather bag opening sinks into the second anti-slip groove 163.

In some embodiments, the second pressing ring 180 may be assembled first, and other structures may be assembled again until the first pressing ring 170 is assembled, so as to complete the whole assembly of the air spring 100.

Second embodiment

With continued reference to fig. 9, the second embodiment provides an automotive suspension device 1000 including:

the air spring 100, the axle 300 connected to the wheel 200, and the lower swing arm 400 described in the first embodiment;

one end of the air spring 100 is provided with a first threaded hole 153 for connecting with a load-bearing vehicle body or a vehicle frame, and the other end of the air spring is provided with a second threaded hole 164 for connecting with the lower swing arm 400.

In this embodiment, the first threaded hole 153 is specifically disposed at the top of the first sealing block in the air spring 100, and is connected to the body or frame through a connecting plate 600; the top of the first sealing block is further provided with a positioning pin 154 for positioning the air spring 100 when it is installed; the second screw hole 164 is specifically provided at the bottom of the second sealing block in the air spring 100, for connecting with the lower swing arm 400. The axle 300 is respectively connected with the lower swing arm 400 and the pull rod 500 in a rotating manner. The structure of the air spring 100 is described in the first embodiment.

The automotive suspension apparatus 1000 of the present embodiment improves the comfort of the vehicle by applying the air spring 100 of the first embodiment. The specific principle is as follows: when the wheel 200 jumps up and down, the lower swing arm 400 swings up and down along with the lower swing arm, at the moment, the vibration of the tire is transmitted to the air spring 100 with the elastic reinforcement through the lower swing arm 400, the air spring 100 moves up and down, the vibration is transmitted to the bearing type vehicle body or the vehicle frame through the compressed air in the air spring leather bag space 111 and the elastic reinforcement 120, the ideal nonlinear mechanical property of the compressed air in the air spring 100 and the leather bag 110 and the elastic reinforcement 120 greatly reduce the vibration transmitted to the vehicle body, and the riding comfort of the vehicle is improved.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims (10)

1. Air spring with elastic reinforcement, characterized in that it comprises:

the leather bag is internally provided with a closed leather bag space for storing compressed gas, wherein the wall body of the leather bag is integrally vulcanized from inside to outside by inner layer rubber, first layer cord fabric, second layer cord fabric and outer layer rubber, and cord threads on the first layer cord fabric and the second layer cord fabric are arranged in an oblique manner;

the elastic reinforcing piece is arranged in the leather bag space, and the stretching direction of the elastic reinforcing piece is the same as that of the leather bag.

2. The air spring of claim 1, further comprising at least one hoop dividing the bladder space into a plurality of connected air chambers in a direction of expansion and contraction of the bladder.

3. Air spring according to claim 2, characterized in that the air chamber is arranged cylindrically.

4. The air spring of claim 2, wherein said hoop is fitted into the wall of said bladder to form a unitary structure.

5. Air spring according to any of claims 1 to 4, characterized in that the resilient reinforcement is a helical spring.

6. The air spring according to claim 5, further comprising a first sealing member and a second sealing member for sealing two openings provided at both ends of the bellows in the expansion and contraction direction, respectively;

wherein the first sealing element comprises a first sealing block and a first pressing ring, the second sealing element comprises a second sealing block and a second pressing ring, a first anti-skid groove is arranged at the joint of the first sealing block and the inner wall of the leather bag, a second anti-skid groove is arranged at the joint of the second sealing block and the inner wall of the leather bag,

the first sealing block and the second sealing block respectively extend into the corresponding openings and are abutted and connected with the inner wall of the leather bag, and the first pressing ring and the second pressing ring are respectively sleeved on the outer wall of the leather bag at the corresponding positions of the first anti-skidding groove and the second anti-skidding groove so as to respectively press and locate the leather bag in the first anti-skidding groove and the second anti-skidding groove.

7. The air spring according to claim 6, wherein a first rubber pad and a second rubber pad are respectively arranged at two ends of the elastic reinforcing member along the expansion direction; the first rubber pad is arranged between one end of the elastic reinforcing piece and the first sealing block, and the second rubber pad is arranged between the other end of the elastic reinforcing piece and the second sealing block.

8. The air spring of claim 7, wherein said first sealing block extends in a direction toward said resilient reinforcement member to form a receiving cavity, one end of said resilient reinforcement member is mounted in said receiving cavity, and said second sealing block extends in a direction toward said resilient reinforcement member to form a protrusion, said protrusion extending into a connecting hole provided at the other end of said resilient reinforcement member.

9. The air spring according to claim 8, wherein the protrusion is provided with a stopper, the elastic reinforcement is provided with a stopper hole matching with the stopper, and the stopper is clamped in the stopper hole when the protrusion is inserted into the connecting hole.

10. Automotive suspension device characterized by comprising:

the air spring of any of claims 1-9, and an axle, a lower swing arm, connected to a wheel;

and one end of the air spring is provided with a first threaded hole for connecting with the lower swing arm, and the other end of the air spring is provided with a second threaded hole for connecting with a load-bearing vehicle body or a vehicle frame.

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