A kind of air floating shock absorbing spring

Abstract

The patent of the present invention discloses an air-floating shock-absorbing spring. Among them, the air-floating shock-absorbing spring can be used to support the vibration isolation equipment. The air-floating shock-absorbing spring includes: an air cushion, a fixed plate assembly and a limiter. Specifically, the air cushion is in a circular ring structure; the fixed plate assembly is arranged at the center of the air cushion and is located on the same center line as the air cushion, and a first mounting position is arranged on the surface of the fixed plate assembly; the limiter covers the outer surface of the air cushion and is connected to the fixed plate assembly, and is used to limit the expansion of the air cushion so that the inside of the air cushion reaches a preset air pressure. The present invention realizes the convenience of installation, strong pressure-bearing capacity, and large shock-absorbing bearing range of the device through the relative positions and specific structures of the air cushion, the fixed plate assembly and the limiter. The minimum shock-absorbing load can be as low as 5kg, and the cost is low, which can effectively reduce the noise and vibration of the vibration equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of shock absorbing devices, in particular to an air floating shock absorbing spring. Background Art

[0002] The shock absorber is a device widely used in the machinery industry. In the prior art, there are spring shock absorbers, rubber shock absorbers and air cushion shock absorbers. The above shock absorbers have a good shock absorbing effect on heavy vibration equipment.

[0003] However, for equipment with light weight and high vibration frequency, such as air compressors, water pumps, air conditioner outdoor units and generators, this type of shock absorber cannot achieve good vibration and noise reduction effects due to factors such as large damping. As a result, this type of equipment still has problems such as high noise, large vibration damage, and a greater impact on the surrounding environment.

[0004] Therefore, whether it is possible to design a shock-absorbing device that is easy to install, has strong pressure-bearing capacity, is low in cost, and can effectively reduce the noise and vibration of vibrating equipment is the problem that this patent wants to solve. Summary of the invention

[0005] In view of the above defects in the prior art, the present invention provides an air-floating shock-absorbing spring, which is easy to install, has strong pressure-bearing capacity, is low in cost, and can effectively reduce the noise and vibration of vibration equipment.

[0006] The technical solution provided by the present invention is as follows:

[0007] An air-floating shock-absorbing spring can be used to support vibration isolation equipment, and the air-floating shock-absorbing spring includes: an air cushion, which is in a circular ring structure; a fixed disk assembly, which is arranged at the center of the air cushion and is located on the same center line as the air cushion, and a first mounting position is arranged on the surface of the fixed disk assembly; a limit member, which covers the outer surface of the air cushion and is connected to the fixed disk assembly, and is used to limit the expansion of the air cushion so that the interior of the air cushion reaches a preset air pressure.

[0008] The technical scheme discloses an air-floating shock-absorbing spring, which is mainly composed of three parts, namely, an air cushion, a fixed plate assembly and a limiter. Among them, the air cushion is the main part of supporting the vibration equipment. The limiter limits its expansion volume. On the one hand, it can have enough air pressure inside to support the vibration equipment; on the other hand, compared with small buffers such as springs and rubber pads, the air cushion has a better vibration reduction effect and can eliminate vibrations above 3Hz. At the same time, because it has a larger contact area, it can withstand a wider range, which can not only play the role of supporting the vibration equipment, but also ensure the stable operation of the vibration equipment. Compared with gas pressure shock absorbers such as nitrogen springs, the nitrogen spring has a larger elastic pressure and a weaker shock reduction effect on small vibration equipment. The air-floating shock-absorbing spring has a larger shock-absorbing bearing range, and also has a good shock-absorbing effect for equipment with small mass and small vibration amplitude. The minimum shock-absorbing load can be as low as 5kg. In addition, the fixed plate assembly not only plays the role of fixing the limiter, but also plays the role of connecting and fixing with other equipment at the bottom, so as to avoid the displacement of the air-floating shock-absorbing spring and the vibration equipment. In the process of the air cushion being inflated to lift the vibration device, due to the annular structure of the air cushion, the bottom surface of the vibration device can be evenly stressed, preventing it from deviating to one side, and having high stability. In summary, the device can effectively reduce the noise and vibration of the vibration device.

[0009] Furthermore, the fixed plate assembly includes a first fixed plate and a second fixed plate located on the same center line; wherein the limit member extends from one axial side of the air cushion to the other side, and one side of the limit member is connected to the edge of the first fixed plate, and the other side is connected to the edge of the second fixed plate.

[0010] The technical scheme further discloses the specific form of the fixed disk assembly, which is composed of a first fixed disk and a second fixed disk. In the actual application process, the air-floating shock-absorbing spring can be produced by the following steps: 1. Fix the gap between the first fixed disk and the second fixed disk on the tooling, and then connect the limiter from the edge of the first fixed disk to the edge of the second fixed disk; 2. Close the first fixed disk and the second fixed disk to each other, so that the limiter forms an annular cystic structure, and then insert the air cushion that is not filled with air pressure or filled with a small air pressure into the limiter from the middle of the first fixed disk or the second fixed disk; 3. Inject gas into the air cushion, the air cushion gradually expands, and finally forms an annular air cushion with a certain volume under the action of the limiter. 4. The first fixed disk and the second fixed disk are fixed by the tension of the limiter, or the first fixed disk and the second fixed disk are fixed by a threaded connector. In summary, on the one hand, by separately setting the first fixed disk and the second fixed disk, it is convenient to connect the limiter to the fixed disk assembly; on the other hand, through the annular structure of the first fixed disk and / or the second fixed disk, the problem of how to install the air cushion in the limiter is solved.

[0011] Furthermore, the first fixing plate and the second fixing plate are spaced apart so that the limiting member at least covers the outer side of the air cushion; wherein the surface of the first fixing plate has a second mounting position, and the surface of the second fixing plate has the first mounting position.

[0012] The technical solution further discloses a specific form of the fixed plate assembly, by arranging the first fixed plate and the second fixed plate at intervals, the first fixed plate can be connected to the bottom surface of the vibration device, and the second fixed plate can be connected and fixed to the bottom support member, so that during the operation of the vibration device, the air-floating shock-absorbing spring can be stably fixed between the vibration device and the bottom support member. Or during the inflation process, the air cushion can stably lift the vibration device to prevent the vibration device from shifting to one side.

[0013] Furthermore, the first fixing plate and the second fixing plate are connected to each other so that the inner and outer sides of the air cushion are covered with the limiting member; wherein, a plurality of first fixing holes are arranged on the surface of the first fixing plate, and a plurality of second fixing holes are arranged on the surface of the second fixing plate, and the first fixing holes and the second fixing holes correspond one to one and are connected by a threaded connector.

[0014] The technical solution further discloses another specific form of the fixed plate assembly, in which the first fixed plate and the second fixed plate are connected to each other so that the limiting member completely covers the surface of the air cushion, so that the force on the air cushion is more uniform and the overall stability is increased.

[0015] Furthermore, the first fixing disk and the second fixing disk are both annular structures, and the inner diameter of the first fixing disk is larger than that of the second fixing disk. A plurality of mounting holes are provided inside the second fixing disk, and the inner edge of the first fixing disk is located between the mounting holes and the second fixing holes.

[0016] The technical solution further discloses a specific form of the device, by arranging the fixed plate assembly on the side of the air cushion close to the bottom support, the air floating shock absorbing spring can be connected to the bottom support through the mounting hole. The installation process is simple, and the air cushion can stably lift the vibration device.

[0017] Furthermore, the limiting member is a limiting net, and the limiting net is formed by a plurality of wires interlaced and woven together to form an annular structure as a whole.

[0018] The technical solution further discloses the specific form of the limiter, and the limiter net is woven by a plurality of wires, which not only facilitates the connection between the limiter and the fixed disk assembly, but also changes the unit force on the air cushion surface by the density of the limiter net. In addition, the limiter net can be woven by hand or by hand, and the process is simple and the feasibility is high.

[0019] Furthermore, a plurality of first positioning net fixing holes are sequentially opened on the edge of the first fixing plate, and a plurality of second positioning net fixing holes are sequentially opened on the edge of the second fixing plate; one end of each of the wires is passed through the first positioning net fixing hole, and the other end is passed through the second positioning net fixing hole to connect the positioning net.

[0020] This technical solution further discloses a specific fixing method of the limiting net. By opening a plurality of first limiting net fixing holes and a plurality of second limiting net fixing holes on the edge of the first fixing plate and the edge of the second fixing plate, one side of the limiting net can be connected to the first fixing plate, and the other side can be connected to the second fixing plate. In practical applications, the radial density of the limiting net can be changed by the density and arrangement gap of the first limiting net fixing holes and the second limiting net fixing holes, so that the grid of the limiting net is evenly distributed. The implementation is simple.

[0021] The force is evenly distributed and the use effect is better.

[0022] Furthermore, the wire is a high-strength soft wire.

[0023] Furthermore, the outer diameters of the first fixed plate and the second fixed plate are not greater than the outer diameter of the air cushion; and the air cushion is a rubber tire.

[0024] The technical solution further discloses the specific form of the device. On the one hand, the outer diameters of the first fixed plate and the second fixed plate are not larger than the outer diameter of the air cushion, so that the air cushion can be in direct contact with the vibration equipment or the bottom support, thereby increasing the shock absorption effect. On the other hand, vehicle tires are used as air cushions, and the parts are widely available, which can effectively reduce production costs.

[0025] Furthermore, the limiting member is a limiting sleeve, which is connected end to end along the length direction, connected to the edge of the first fixed disk on one side along the width direction, and connected to the edge of the second fixed disk on the other side; the limiting sleeve is a textile or a rubber strip.

[0026] The technical effects of the present invention are:

[0027] 1. This device has a larger contact area with the bottom surface of the vibration equipment, which can increase the stability of the vibration equipment during lifting and operation.

[0028] 2. This device limits the volume of the air cushion through a limiter, which can increase the internal pressure of the air cushion and enhance the lifting capacity of the air cushion.

[0029] 3. The two ends of the limiting net are respectively connected to the edge of the first fixed disk and the edge of the second fixed disk, so that the radial grid of the limiting net is evenly distributed, effectively reducing the unit force area of ​​the air cushion and increasing the maximum air pressure that the air cushion can withstand.

[0030] 4. The device is flexible in fixing and easy to use. It can be placed directly between two devices. By charging the air cushion, the vibration device can be lifted and separated from the bottom support.

[0031] 5. This device is easy to obtain materials, simple to make, and has high economic benefits and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0033] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the device of the present invention;

[0034] Figure 2 It is a schematic diagram of the overall structure of another embodiment of the device of the present invention;

[0035] Figure 3 yes Figure 1 Bottom view of

[0036] Figure 4 yes Figure 1 A top view of

[0037] Figure 5 yes Figure 4 Section view in AA direction;

[0038] Figure 6 When the first fixed plate and the second fixed plate are spaced apart Figure 5 Another form of;

[0039] Figure 7 yes Figure 1 The main view;

[0040] Figure 8 It is a schematic diagram of the structure of the fixed disk components in a state of abutting against each other;

[0041] Fig. 9 is a structural schematic diagram of an embodiment of a second fixed plate;

[0042] Fig.10 is a schematic structural diagram of an embodiment of a first fixed plate;

[0043] Fig.11 It is a structural schematic diagram of the device of the present invention applied to an air compressor.

[0044] Description of Figure Numbers:

[0045] 100. air-floating shock-absorbing spring, 110. air cushion, 120. fixed plate assembly, 121. first fixed plate, 121-a. second mounting position, 121-b. first fixing hole, 121-c. first limiting net fixing hole; 122. second fixed plate, 122-a. first mounting position, 122-b. second fixing hole, 122-c. mounting hole, 122-d. second limiting net fixing hole, 130. limiting member, 131. limiting net, 131-a. wire;

[0046] 200. Air compressor body; 300. Air compressor casing. DETAILED DESCRIPTION

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0048] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0049] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0050] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0053] [Example 1]

[0054] As a specific example, Figures 1 to 7 As shown, an air-floating shock-absorbing spring 100 is shown, and the air-floating shock-absorbing spring 100 includes: an air cushion 110, a fixed plate assembly 120 and a stopper 130. The air-floating shock-absorbing spring 100 can be used to isolate or support vibration equipment, and the vibration equipment includes but is not limited to air compressors, machine tools, compressors, air conditioner outdoor units, water pumps, etc.

[0055] like Fig.11 As shown, a method of applying the air-floating damping spring 100 to an air compressor is shown. The air-floating damping spring 100 can be installed between the air compressor body 200 and the bottom plate of the air compressor case 300 to support the air compressor body 200, separate the air compressor body 200 from the air compressor case 300, reduce the vibration transmitted from the air compressor body 200 to the air compressor case 300, and further reduce the vibration and noise of the air compressor. In addition, the device can also be applied to other vibration equipment, which will not be described in detail here.

[0056] Preferably, the air cushion 110 has a circular ring structure. The fixed disc assembly 120 is arranged at the center of the air cushion 110 and is located on the same center line as the air cushion 110. A first mounting position 122-a is arranged on the surface of the fixed disc assembly 120. The limiter 130 covers the outer surface of the air cushion 110 and is connected to the fixed disc assembly 120, and is used to limit the expansion of the air cushion 110 so that the inside of the air cushion 110 reaches a preset air pressure. In other words, through the constraint of the air cushion 110 by the limiter 130, the air pressure in the air cushion 110 can reach a strength sufficient to support the air compressor body 200. Due to the annular structure of the air cushion 110, the bottom surface of the air compressor body 200 can be evenly stressed, thereby increasing the stability of the air compressor body 200 during the lifting process and even during the operation of the air compressor body 200.

[0057] More preferably, if Figures 8 to 10As shown, the fixed disk assembly 120 includes a first fixed disk 121 and a second fixed disk 122 located on the same center line, and the first fixed disk 121 and / or the second fixed disk 122 are annular structures. In other words, the fixed disk assembly 120 has at least the following three situations: the first fixed disk 121 and the second fixed disk 122 are both annular structures, only the first fixed disk 121 is annular structure, and only the second fixed disk 122 is annular structure. The purpose of the above three technical solutions is to allow the air cushion 110 to penetrate through the inner hole of the first fixed disk 121 or the second fixed disk 122 when it is not inflated or inflated with a small amount of gas, and be placed in the limiter 130.

[0058] Specifically, Figure 1 and Figure 2 As shown, the stopper 130 extends from one axial side of the air cushion 110 to the other side, one side of the stopper 130 is connected to the edge of the first fixed plate 121, and the other side is connected to the edge of the second fixed plate 122. Figure 4 As shown, the outer diameters of the first fixed plate 121 and the second fixed plate 122 are not greater than the outer diameter of the air cushion 110. The air cushion 110 is a rubber tire. In addition, the limiting member 130 can be a filamentary limiting net 131, a cloth and paper limiting sleeve, a rubber sleeve with a certain strength, or other forms.

[0059] In a preferred embodiment, Figure 2 and Figure 6 As shown, the first fixed plate 121 and the second fixed plate 122 are arranged at intervals so that the limiting member 130 at least covers the outer side of the air cushion 110; wherein, the surface of the first fixed plate 121 has a second mounting position 121-a, and the surface of the second fixed plate 122 has a first mounting position 122-a.

[0060] In actual application, the air-floating shock-absorbing spring 100 is connected to the bottom surface of the air compressor body 200 through the second mounting position 121-a on the surface of the first fixed plate 121; and is connected to the bottom plate of the air compressor case 300 through the first mounting position 122-a on the surface of the second fixed plate 122, so that the air compressor case 300, the air-floating shock-absorbing spring 100 and the air compressor body 200 are connected as a whole, further increasing the stability of the air cushion 110 during the process of lifting the air compressor body 200.

[0061] In another preferred embodiment, Figure 1 , Figure 3 , Figure 5 and Figure 8As shown, the first fixing plate 121 and the second fixing plate 122 are connected against each other, so that the inner side and the outer side of the air cushion 110 are covered with the limiting member 130. Among them, a plurality of first fixing holes 121-b are arranged on the surface of the first fixing plate 121, and a plurality of second fixing holes 122-b are arranged on the surface of the second fixing plate 122. Different first fixing holes 121-b and second fixing holes 122-b correspond to each other one by one and are connected by a threaded connector. Preferably, the threaded connector is a bolt screw.

[0062] Specifically, the second fixed plate 122 is located on one side of the air cushion 110 close to the bottom plate of the air compressor case 300. The first fixed plate 121 and the second fixed plate 122 are both annular structures, and the inner diameter of the first fixed plate 121 is larger than that of the second fixed plate 122. A plurality of mounting holes 122-c are provided on the inner side of the second fixed plate 122, and the inner edge of the first fixed plate 121 is located between the mounting hole 122-c and the second fixing hole 122-b.

[0063] In practical applications, such as Figure 1 , Figure 3 , Figure 5 and Figure 8 As shown, the first fixed plate 121 and the second fixed plate 122 are fixed together by bolts, and are both located on the side of the air cushion 110 close to the bottom plate of the air compressor housing 300, and the air-floating shock-absorbing spring 100 is connected through the mounting hole 122-c on the surface of the second fixed plate 122. Compared with the previous technical solution, although the air-floating shock-absorbing spring 100 is not connected to the air compressor body 200, the limiter 130 can completely cover the air cushion 110, thereby making the surface of the air cushion 110 more evenly stressed and increasing the maximum pressure that can be filled into the air cushion 110. In addition, the upper surface of the air cushion 110 has a large contact area with the bottom surface of the air compressor body 200, and can operate relatively stably only by relying on the gravity of the air compressor body 200. In the actual installation process, the process of connecting the air compressor body 200 with the first fixed plate 121 is reduced.

[0064] Further preferably, the limiting member 130 is a limiting net 131, and the limiting net 131 is composed of a plurality of wires 131-a interlaced and woven with each other, and the whole is a ring-shaped structure. Fig. 9 and Fig.10As shown, a plurality of first limiting net fixing holes 121-c are sequentially opened on the edge of the first fixed disk 121, and a plurality of second limiting net fixing holes 122-d are sequentially opened on the edge of the second fixed disk 122. One end of each wire 131-a is passed through the first limiting net fixing hole 121-c, and the other end is passed through the second limiting net fixing hole 122-d to connect the limiting net 131. In addition, the limiting member 130 can be a limiting sleeve made of textile or rubber strip, and the limiting sleeve is connected end to end along the length direction; one side is connected to the edge of the first fixed disk 121 along the width direction, and the other side is connected to the edge of the second fixed disk 122 to partially or completely wrap the air cushion 110. Preferably, the wire 131-a is a high-strength soft wire such as PE wire and Dyneema wire.

[0065] In practical applications, an auxiliary bracket can be used to fix the first fixed plate 121 above the second fixed plate 122 so that they are located on the same center line. Then, the wire 131-a is inserted into the different first limiting net fixing holes 121-c and the second limiting net fixing holes 122-d in sequence, so that a diamond grid is formed on the surface of the limiting net 131. Then, the uninflated air cushion 110 is installed into the limiting net 131 through the inner hole of the first fixed plate 121 or the inner hole of the second fixed plate 122. Before use, a certain amount of gas can be injected into the air cushion 110 to keep it in a certain shape for easy installation.

[0066] [Example 2]

[0067] This embodiment is an air compressor. Fig.11 As shown, the air compressor includes an air compressor body 200, an air compressor housing 300 and an air floating damping spring 100 of any of the above embodiments. The specific structure and effect of the air floating damping spring 100 will not be described in detail here.

[0068] Specifically, the air compressor body 200 is the main vibration device of the air compressor and is installed inside the air compressor housing 300. The air floating shock absorbing spring 100 is located between the air compressor body 200 and the bottom plate of the air compressor housing 300. During use, the air cushion 110 is pressurized to a preset air pressure to separate the air compressor body 200 from the bottom plate of the air compressor housing 300.

[0069] Further preferably, the air floating shock absorbing spring 100 can be divided into a fully wrapped type and a semi-covered type due to the different combination forms of the fixed disk assembly 120 and the structure of the limiter 130, so that the air compressor has at least two different forms.

[0070] The first form: Figure 2 , Figure 6 and Fig.11As shown, the first fixed plate 121 and the second fixed plate 122 are arranged at intervals and are respectively located on both sides of the air cushion 110. The bottom surface of the air compressor body 200 is connected to the first fixed plate 121, and the bottom plate of the air compressor housing 300 is connected to the second fixed plate 122. In this structural form, the air compressor housing 300, the air floating damping spring 100 and the air compressor body 200 are connected as a whole, so that it has good stability during the operation of the air compressor body 200 and even in the process of the air floating damping spring 100 lifting the air compressor body 200.

[0071] The second form: Figure 1 , Figure 5 , Figure 8 and Fig.11 As shown, the first fixed plate 121 and the second fixed plate 122 are connected to each other and are both located on the side of the air cushion 110 close to the bottom plate of the air compressor housing 300. A plurality of mounting holes 122-c are provided on the inner side of the second fixed plate 122, and the fixed plate assembly 120 is connected to the bottom plate of the air compressor housing 300 through the mounting holes 122-c. In this structural form, the air-floating shock-absorbing spring 100 is only connected to the air compressor housing 300. Although the stability is slightly weaker than the first form, since the limiter 130 covers a larger area, a higher air pressure can be filled in the air cushion 110, thereby increasing the lifting capacity of the air-floating shock-absorbing spring 100. In addition, since the first fixed plate 121 and the second fixed plate 122 are both located on the side of the air cushion 110 away from the air compressor body 200, the upper surface of the air cushion 110 can be completely in contact with the bottom surface of the air compressor body 200, thereby increasing the shock-absorbing and noise-reducing effect of the air cushion 110 on the air compressor body 200.

[0072] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An air-floating shock-absorbing spring, which can be used to support a vibration-isolating device, characterized in that: The air-floating shock-absorbing spring comprises: An air cushion, wherein the air cushion has a ring-shaped structure; A fixed disk assembly is arranged at the center of the air cushion and is located on the same center line as the air cushion, and a first mounting position is arranged on the surface of the fixed disk assembly; the fixed disk assembly includes a first fixed disk and a second fixed disk located on the same center line, the first fixed disk and the second fixed disk are both annular structures, and the inner diameter of the first fixed disk is larger than that of the second fixed disk; wherein the first fixed disk and the second fixed disk are connected to each other in abutment with each other, a plurality of first fixing holes are arranged on the surface of the first fixed disk, and a plurality of second fixing holes are arranged on the surface of the second fixed disk, and the first fixing holes and the second fixing holes are respectively corresponding to each other and connected by threaded connectors; and a plurality of mounting holes are opened on the inner side of the second fixed disk, and the inner edge of the first fixed disk is located between the mounting hole and the second fixing hole; A limiter, which covers the inner and outer sides of the air cushion and is connected to the fixed plate assembly, and is used to limit the expansion of the air cushion so that the interior of the air cushion reaches a preset air pressure; Among them, the limiting member is a limiting net, which is woven by a number of wires that are interlaced and woven together to form an annular structure as a whole. The limiting member extends from one axial side of the air cushion to the other side, and one side of the limiting member is connected to the edge of the first fixed disk, and the other side is connected to the edge of the second fixed disk; or, the limiting member is a limiting sleeve, which is connected end to end along the length direction, one side along the width direction is connected to the edge of the first fixed disk, and the other side is connected to the edge of the second fixed disk, and the limiting sleeve is a textile or a rubber strip.

2. The air-floating shock-absorbing spring according to claim 1, characterized in that: A plurality of first position limiting net fixing holes are sequentially formed on the edge of the first fixing plate, and a plurality of second position limiting net fixing holes are sequentially formed on the edge of the second fixing plate; One end of each of the wires is inserted into the fixing hole of the first limiting net, and the other end is inserted into the fixing hole of the second limiting net to connect the limiting nets.

3. The air-floating shock-absorbing spring according to claim 1, characterized in that: The wire material is a high-strength soft wire.

4. The air-floating shock-absorbing spring according to claim 1, characterized in that: The outer diameters of the first fixed plate and the second fixed plate are not greater than the outer diameter of the air cushion; The air cushion is a rubber tire.

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