Bionic double-tube interconnected air spring

Abstract

The application discloses a bionic double-tube interconnected air spring and relates to the technical field of air springs. The bionic double-tube interconnected air spring comprises an air spring and a pipeline interconnecting piece. The air spring comprises a first air spring and a second air spring. A bearing part is arranged on the air spring. A first channel and a second channel are formed in the pipeline interconnecting piece. The first channel and the second channel are both connected with the first air spring and the second air spring. The gas flowing out of the first air spring flows to the second air spring through the first channel. The gas flowing out of the second air spring flows to the first air spring through the second channel. The first channel and the second channel are at least partially one-way channels, so that the gas can flow in one direction as much as possible, internal resonance can be inhibited, adaptive regulation and control of air damping can be realized, and the full-frequency-domain adaptive damping performance of the air spring is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air springs, and particularly relates to a bionic double-tube interconnected air spring. BACKGROUND

[0002] As a rapidly developed damping element in recent years, the air spring is widely used in various fields due to its unique nonlinear elastic characteristics, superior damping and buffering properties, high adjustability and adaptability, and economic advantages.

[0003] Since the dynamic stiffness of the air spring changes with the increase of the excitation frequency, resonance peaks may occur at certain frequency points, and the nonlinear characteristics make the behavior more complex at the internal resonance, resulting in intensified vibration response. At present, the techniques for suppressing internal resonance mainly include methods such as using damping materials, vibration isolation systems, and adjusting the natural frequency of the system. For example, by optimizing the design parameters such as the orifice diameter of the air spring and the volume of the built-in air chamber, the internal resonance peak value is suppressed, but the internal resonance is not suppressed from the generation mechanism.

[0004] The utility model of a low-resonance air damper described in patent CN221800447U changes the inherent frequency by setting a damping part and changing the rigid connection, and also reduces the excitation force, and reduces the resonance amplitude by reducing the forced vibration source. These methods are effective to some extent, but often increase the complexity and cost of the system, and sacrifice the performance of the system at other frequencies when suppressing the resonance at a certain frequency. SUMMARY

[0005] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a bionic double-tube interconnected air spring, which suppresses internal resonance from the mechanism by the one-way flow of air in the pipe interconnection between the two elastic air bags.

[0006] The present application provides a bionic double-tube interconnected air spring, comprising:

[0007] The air spring comprises a first air spring and a second air spring; a load-bearing part is provided on the air spring;

[0008] A pipe interconnection is formed in the pipe interconnection, which forms a first channel and a second channel, so that the pressure changes between the two air springs can offset each other, and the internal resonance phenomenon caused by the pressure imbalance is suppressed; the first channel and the second channel are both connected to the first air spring and the second air spring; the gas flowing out of the first air spring flows to the second air spring through the first channel; the gas flowing out of the second air spring flows to the first air spring through the second channel; the first channel and the second channel are at least partially one-way channels.

[0009] According to the bionic double-tube interconnected air spring, at least the following beneficial effects are achieved:

[0010] The first air spring and the second air spring are connected through the first channel and the second channel, and the first channel and the second channel are at least partially one-way channels, so that the gas flows in one direction as much as possible, thereby making the gas flow between the first air spring and the second air spring more stable and reducing the reverse or periodic fluctuation of the gas flow in the channel, and the one-way flow of the air in the pipeline interconnector between the two elastic air bags can inhibit internal resonance in principle.

[0011] In some embodiments of the present application, the pipeline interconnector comprises a first one-way flexible pipe, a second one-way flexible pipe, a third one-way flexible pipe, a fourth one-way flexible pipe, and an external air chamber, the external air chamber is connected to the first one-way flexible pipe and the second one-way flexible pipe to form the first channel, and the external air chamber is connected to the third one-way flexible pipe and the fourth one-way flexible pipe to form the second channel.

[0012] In some embodiments of the present application, the external air chamber is a vibration suppression air bag.

[0013] In some embodiments of the present application, the pipeline interconnector further comprises an air inlet pipe and an air outlet pipe, the air inlet end of the air inlet pipe is connected to the first one-way flexible pipe and the third one-way flexible pipe, and the air outlet end of the air inlet pipe is connected to the external air chamber; the air inlet end of the air outlet pipe is connected to the external air chamber, and the air outlet end of the air outlet pipe is connected to the second one-way flexible pipe and the fourth one-way flexible pipe.

[0014] In some embodiments of the present application, the bionic double-tube interconnected air spring further comprises a first connecting pipe and a second connecting pipe, one end of the first connecting pipe is connected to the first air spring, and the other end of the first connecting pipe is connected to the first one-way flexible pipe and the fourth one-way flexible pipe; one end of the second connecting pipe is connected to the second air spring, and the other end of the second connecting pipe is connected to the second one-way flexible pipe and the third one-way flexible pipe.

[0015] In some embodiments of the present application, the bionic double-tube interconnected air spring further comprises a bionic valve type one-way valve, and the first one-way flexible pipe, the second one-way flexible pipe, the third one-way flexible pipe, and the fourth one-way flexible pipe are all provided with the bionic valve type one-way valve.

[0016] In some embodiments of the present application, the bionic valve type one-way valve has an air inlet side and an air outlet side, and the bionic valve type one-way valve connects the air inlet side and the air outlet side when the air pressure of the air inlet side is greater than the air pressure of the air outlet side.

[0017] In some embodiments of the present application, the bionic valve type one-way valve comprises a plurality of valves connected to the side wall of the first channel or the second channel and extending from the air inlet side to the air outlet side; when the air pressure at the air inlet side is less than or equal to the air pressure at the air outlet side, the plurality of valves gather towards the center to block the air inlet side and the air outlet side; when the air pressure at the air inlet side is greater than the air pressure at the air outlet side, the plurality of valves spread towards the air outlet side so that the air inlet side and the air outlet side are in communication.

[0018] In some embodiments of the present application, the air spring has a gas cavity, a partition is arranged inside the air spring, the partition divides the gas cavity into a main gas chamber and a built-in gas chamber, the main gas chamber has a vent hole, and the vent hole communicates with the pipeline interconnector.

[0019] In some embodiments of the present application, an electromagnetic valve is arranged on the partition, and the electromagnetic valve is used to open the main gas chamber and the built-in gas chamber.

[0020] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and achieved by means of the structures particularly pointed out in the description and the claims. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in conjunction with the drawings and examples;

[0022] Figure 1 is a schematic diagram of the overall structure of a bionic double-pipe interconnected air spring provided by an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the overall structure of a pipeline interconnector of a bionic double-pipe interconnected air spring provided by an embodiment of the present application;

[0024] Figure 3 is a schematic diagram of the structure of a first air spring of a bionic double-pipe interconnected air spring provided by an embodiment of the present application;

[0025] Figure 4 is a schematic diagram of the structure of a second air spring of a bionic double-pipe interconnected air spring provided by an embodiment of the present application;

[0026] Figure 5 is a schematic diagram of the structure of a bionic valve type one-way valve of a bionic double-pipe interconnected air spring provided by an embodiment of the present application in a closed state;

[0027] Figure 6is a structure schematic view of the bionic valve type one-way valve of the bionic double-tube interconnected air spring in an open state provided by the embodiment of the present application

[0028] Figure 7 is a structure schematic view of the external air chamber of the bionic double-tube interconnected air spring provided by the embodiment of the present application.

[0029] The signs in the drawings are as follows:

[0030] 100, air spring; 110, first air spring; 120, second air spring; 130, bearing part; 140, separation part; 150, main air chamber; 151, air hole; 160, internal air chamber; 170, electromagnetic valve;

[0031] 200, pipeline interconnection; 210, external air chamber; 220, first one-way flexible pipeline; 230, second one-way flexible pipeline; 240, third one-way flexible pipeline; 250, fourth one-way flexible pipeline; 260, first channel; 270, second channel; 280, air outlet pipe; 290, air inlet pipe;

[0032] 300, lower cover plate;

[0033] 400, first connecting pipe;

[0034] 500, second connecting pipe;

[0035] 600, bionic valve type one-way valve; 610, first one-way valve; 620, second one-way valve; 630, third one-way valve; 640, fourth one-way valve; 650, air inlet side; 660, air outlet side; 670, valve. DETAILED DESCRIPTION

[0036] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with figures, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as the limitation of the protection scope of the present application.

[0037] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as the limitation of the present application.

[0038] In the description of the present application, if the word such as "several" is described, its meaning is one or more, the meaning of multiple is two and more, greater than, less than, more than, etc. Understand as not including the number, above, below, within, etc. Understand as including the number. If it is described to the first, second, third, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0039] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installation, connection, etc. Should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0040] As Figures 1-2 shown, a bionic double-tube interconnected air spring of an embodiment of the present application, comprising an air spring 100 and a pipeline interconnection piece 200, the air spring 100 comprises a first air spring 110 and a second air spring 120; The air spring 100 is provided with a bearing part 130; The pipeline interconnection piece 200 forms a first channel 260 and a second channel 270; The first channel 260 and the second channel 270 are both communicated with the first air spring 110 and the second air spring 120; The gas flowing out of the first air spring 110 flows to the second air spring 120 through the first channel 260; The gas flowing out of the second air spring 120 flows to the first air spring 110 through the second channel 270; The first channel 260 and the second channel 270 are at least partially one-way channels.

[0041] The first air spring 110 and the second air spring 120 are connected through the first channel 260 and the second channel 270, and the first channel 260 and the second channel 270 are at least partially one-way channels, so as to make the gas flow as much as possible in one direction, and then make the gas flow between the first air spring 110 and the second air spring 120 more stable, reduce the reverse or periodic fluctuation of the gas flow in the channel, and the structure is simple. Through the one-way flow of air in the pipeline interconnection piece between the two elastic air bags, the internal resonance is inhibited from the mechanism.

[0042] The embodiment of the present application adopts bionic design, imitates the characteristics of human heart pumping blood out of the arteries and into the veins, can realize the one-way flow of gas and achieve the effect of inhibiting the internal resonance of the air spring 100.

[0043] By limiting the flow direction of the gas through the first channel 260 and the second channel 270, in the case of one-way flow, the propagation path and direction of the pressure wave in the pipeline are relatively simple and easy to predict, the pressure wave of the fluid propagates unidirectionally along the flow direction, and bidirectional reflection and interference do not occur, which helps to reduce the fluctuation of the frequency and intensity of the pressure wave in the pipeline; secondly, in the case of bidirectional flow, the pressure wave propagates back and forth in the pipeline, which is easy to superimpose with other waves and form resonance, while in the case of one-way flow, the propagation direction of the pressure wave is clear, avoiding such complex wave interference; thirdly, in the case of bidirectional flow, the speed and direction of the gas flow change dramatically, especially in the case of reverse flow and collision of the fluid, which is easy to produce strong local flow instability, thereby increasing the risk of resonance, while in the case of one-way flow, the flow rate changes less, the flow is more uniform, and the flow direction remains consistent, so the flow rate changes less, and the pressure fluctuation in the pipeline is also relatively smooth.

[0044] The first channel 260 or the second channel 270 can be all one-way channels or part of them, and the embodiments of the present application do not make special limitations on this. When a kind of bionic double pipe interconnection air spring is in compression state, the gas flows from the first air spring 110 to the second air spring 120 through the first channel 260; when a kind of bionic double pipe interconnection air spring is in tension state, the gas flows from the second air spring 120 to the first air spring 110 through the second channel 270.

[0045] The air spring 100 is provided with a bearing part 130, and it can be understood that the first air spring 110 and the second air spring 120 are both provided with the bearing part 130, which is used to support the vibration-isolated object, such as industrial machines, equipment and precision instruments, etc., to reduce the vibration generated by the industrial machines, equipment and precision instruments during operation, and the embodiments of the present application do not make special limitations on the vibration-isolated object. The bearing part 130 is generally an upper cover plate, of course, the bearing part 130 can also be other shapes, as long as the bearing part 130 can support the vibration-isolated object. The two air springs 100 can play a more stable supporting role and achieve better vibration reduction effect; of course, in other embodiments, the bearing part 130 can be provided only on the first air spring 110, or the bearing part 130 can be provided only on the second air spring 120, and the embodiments of the present application do not make special limitations on this; in other embodiments, the air spring 100 can also be provided with three, four or five air springs 100, and the adjacent two air springs 100 are connected through the pipeline interconnection 200, and the embodiments of the present application do not make special limitations on the number of air springs 100.

[0046] As shown in FIG. 1, the air spring 100 is provided with a first air spring 110 and a second air spring 120, and the first air spring 110 and the second air spring 120 are connected through a pipeline interconnection 200. Figures 1-2As shown, in some embodiments, a lower cover plate 300 can be provided at the bottom of the air spring 100. The air spring 100 can be installed on the lower cover plate 300 using fasteners such as bolts. The lower cover plate 300 can be fixed to an external fixed object. For example, the lower cover plate 300 can be a fixed plate, which can be fixed to the ground.

[0047] like Figures 1-2 As shown, in some embodiments of the present invention, the pipeline interconnection component 200 includes a first unidirectional flexible pipe 220, a second unidirectional flexible pipe 230, a third unidirectional flexible pipe 240, a fourth unidirectional flexible pipe 250, and an external air chamber 210. The external air chamber 210 connects the first unidirectional flexible pipe 220 and the second unidirectional flexible pipe 230 to form a first channel 260, and the external air chamber 210 connects the third unidirectional flexible pipe 240 and the fourth unidirectional flexible pipe 250 to form a second channel 270.

[0048] It is understandable that both the first channel 260 and the second channel 270 flow through the external air chamber 210, so that the gas flowing out of the first air spring 110 and the second air spring 120 merges in the external air chamber 210 and then flows to the first air spring 110 or the second air spring 120, which helps to balance the air pressure of the first air spring 110 and the second air spring 120.

[0049] Among them, the first unidirectional flexible pipe 220, the second unidirectional flexible pipe 230, the third unidirectional flexible pipe 240 and the fourth unidirectional flexible pipe 250 are unidirectional pipes, which can restrict the flow direction of gas. When the first air spring 110 and the second air spring 120 are connected, the flow direction of gas inside the pipe interconnect 200 can be restricted to reduce the phenomenon of internal resonance.

[0050] like Figure 1 , Figure 2 and Figure 7 As shown, in some embodiments of the present invention, the external air chamber 210 is a vibration-damping airbag. The vibration-damping airbag can temporarily store the gas, allowing the gas flowing out of the first air spring 110 and the second air spring 120 to converge in the vibration-damping airbag, thereby reducing the air pressure difference between the first air spring 110 and the second air spring 120, which is beneficial for suppressing internal resonance. The external air chamber 210 can be fixed to the ground or other fixed objects by bolts or other fixing components; of course, in other embodiments, the external air chamber 210 can also be a pipe.

[0051] like Figures 1-2As shown, in some embodiments of the present invention, the pipeline interconnect 200 further includes an air inlet pipe 290 and an air outlet pipe 280. The air inlet end of the air inlet pipe 290 is connected to the first unidirectional flexible pipe 220 and the third unidirectional flexible pipe 240, and the air outlet end of the air inlet pipe 290 is connected to the external air chamber 210. The air inlet end of the air outlet pipe 280 is connected to the external air chamber 210, and the air outlet end of the air outlet pipe 280 is connected to the second unidirectional flexible pipe 230 and the fourth unidirectional flexible pipe 250. Gas flowing out of the first air spring 110 enters the external air chamber 210 through the first one-way flexible pipe 220 and the inlet pipe 290. Gas flowing out of the second air spring 120 enters the external air chamber 210 through the third one-way flexible pipe 240 and the inlet pipe 290. Gas flowing out of the external air chamber 210 flows through the outlet pipe 280 and the second one-way flexible pipe 230 through the second air spring 120. Gas flowing out of the external air chamber 210 flows through the outlet pipe 280 and the fourth one-way flexible pipe 250 through the first air spring 110. This reduces the number of inlet pipes 290 and outlet pipes 280, while ensuring one-way communication between the first air spring 110 and the external air chamber 210, and between the external air chamber 210 and the second air spring 120.

[0052] like Figures 1-2 As shown, in some embodiments of the present invention, a biomimetic dual-tube interconnected air spring further includes a first connecting tube 400 and a second connecting tube 500. One end of the first connecting tube 400 is connected to the first air spring 110, and the other end is connected to the first unidirectional flexible pipe 220 and the fourth unidirectional flexible pipe 250. One end of the second connecting tube 500 is connected to the second air spring 120, and the other end is connected to the second unidirectional flexible pipe 230 and the third unidirectional flexible pipe 240. The first connecting tube 400 connects the first air spring 110 and the pipe interconnect 200, and the second connecting tube 500 connects the second air spring 120 and the pipe interconnect 200, which can reduce the number of openings on the air spring 100.

[0053] like Figures 1-2 As shown, in some embodiments of the present invention, a biomimetic dual-tube interconnected air spring further includes a biomimetic valve-type one-way valve 600. The biomimetic valve-type one-way valve 600 is disposed in the first one-way flexible pipe 220, the second one-way flexible pipe 230, the third one-way flexible pipe 240 and the fourth one-way flexible pipe 250, so that the airflow can achieve unidirectional flow inside the first one-way flexible pipe 220, the second one-way flexible pipe 230, the third one-way flexible pipe 240 and the fourth one-way flexible pipe 250, so as to reduce the fluctuation of airflow inside the pipe and thus reduce the internal resonance phenomenon.

[0054] The bionic valve type one-way valve 600 includes a first one-way valve 610, a second one-way valve 620, a third one-way valve 630, and a fourth one-way valve 640. The first one-way valve 610 is arranged in the first one-way flexible pipeline 220, and the conduction direction of the first one-way valve 610 is from the first air spring 110 to the external air chamber 210. The second one-way valve 620 is arranged in the second one-way flexible pipeline 230, and the conduction direction of the second one-way valve 620 is from the external air chamber 210 to the second air spring 120. The third one-way valve 630 is arranged in the third one-way flexible pipeline 240, and the conduction direction of the third one-way valve 630 is from the second air spring 120 to the external air chamber 210. The fourth one-way valve 640 is arranged in the fourth one-way flexible pipeline 250, and the conduction direction of the fourth one-way valve 640 is from the external air chamber 210 to the first air spring 110.

[0055] The pipeline diameter affects the resonance frequency and the damping. When the pipeline diameter is small, the damping increases, resulting in an increase in the resonance frequency. When the pipeline diameter is large, the damping decreases, resulting in a decrease in the resonance frequency. Therefore, the pipeline diameters of the first one-way flexible pipeline 220, the second one-way flexible pipeline 230, the third one-way flexible pipeline 240, the fourth one-way flexible pipeline 250, the air inlet pipe 290, the air outlet pipe 280, the first connecting pipe 400, and the second connecting pipe 500 can be designed according to actual conditions to minimize the resonance frequency while meeting the gas flow requirement. Generally, the first one-way flexible pipeline 220, the second one-way flexible pipeline 230, the third one-way flexible pipeline 240, the fourth one-way flexible pipeline 250, the air inlet pipe 290, the air outlet pipe 280, the first connecting pipe 400, and the second connecting pipe 500 can be flexible pipelines. The flexible pipelines can effectively withstand external vibration, stretching, and bending stress, can prevent the flexible pipelines from breaking or leaking, and can ensure the stability and safety of gas delivery. In addition, the flexible pipelines can be bent and adjusted in different environments and occasions, and have strong adaptability.

[0056] The damping characteristics of the air spring are related to the structure of the air spring itself, and are also affected by the external excitation frequency and excitation amplitude. When the external excitation conditions change, the damping characteristics of the air spring system will also change. For a nonlinear vibration system of an air spring, too large or too small damping is not conducive to reducing vibration. Therefore, the design of an air spring under the requirement of self-adaptation and variable damping is particularly important.

[0057] As shown in FIG. 1, the air spring system 100 includes a first air spring 110, an external air chamber 210, a second air spring 120, a bionic valve type one-way valve 600, an air inlet pipe 290, an air outlet pipe 280, a first one-way flexible pipeline 220, a second one-way flexible pipeline 230, a third one-way flexible pipeline 240, a fourth one-way flexible pipeline 250, a first connecting pipe 400, and a second connecting pipe 500. Figure 2As shown, in some embodiments of the present invention, the biomimetic valve-type one-way valve 600 has an inlet side 650 and an outlet side 660. When the air pressure on the inlet side 650 is greater than the air pressure on the outlet side 660, the biomimetic valve-type one-way valve 600 connects the inlet side 650 and the outlet side 660, so that the air pressure on the inlet side 650 and the outlet side 660 tend to be consistent. Through the biomimetic valve-type one-way valve 600, not only can the flow direction of the gas be restricted, but the air pressure in the first channel 260 or the second channel 270 can also be balanced. By reducing the air pressure difference, the internal resonance phenomenon inside a biomimetic dual-tube interconnected air spring can be suppressed.

[0058] like Figures 5-6 As shown, in some embodiments of the present invention, the biomimetic valve-type one-way valve 600 includes a plurality of valves 670 connected to the sidewall of the first channel 260 or the second channel 270 and extending from the air inlet side 650 to the air outlet side 660; when the air pressure on the air inlet side 650 is less than or equal to the air pressure on the air outlet side 660, the plurality of valves 670 converge toward the center to isolate the air inlet side 650 and the air outlet side 660; when the air pressure on the air inlet side 650 is greater than the air pressure on the air outlet side 660, the plurality of valves 670 disperse toward the air outlet side 660 to make the air inlet side 650 and the air outlet side 660 connect.

[0059] Understandably, multiple valves 670 are connected to the sidewalls of the first channel 260 or the second channel 270 and extend from the inlet side 650 to the outlet side 660, preventing gas from flowing from the outlet side 660 to the inlet side 650, thus allowing unidirectional gas flow. When the air pressure on the inlet side 650 is less than or equal to the air pressure on the outlet side 660, the valves 670 open towards the outlet side 660 under the influence of air pressure, allowing the inlet side 650 and the outlet side 660 to communicate. If the pressure difference between the inlet side 650 and the outlet side 660 is large, If the valve 670 opens significantly, the bionic valve-type one-way valve 600 will open more fully, resulting in a larger flow rate through it. Conversely, if the pressure difference between the inlet side 650 and the outlet side 660 is smaller, the valve 670 will open less significantly, resulting in a smaller opening of the bionic valve-type one-way valve 600 and a smaller flow rate through it. Therefore, the bionic valve-type one-way valve 600 can adjust its opening based on different air pressure conditions to achieve adaptive adjustment of air damping. Generally, the valve 670 is made of TPU (thermoplastic polyurethane elastomer, also known as thermoplastic polyurethane rubber).

[0060] Normally, three valves 670 can be set. The three valves 670 are symmetrically arranged with the axis of the pipe as the center. When the air pressure on the inlet side 650 is less than or equal to the air pressure on the outlet side 660, the multiple valves 670 converge towards the center and seal each other to isolate the inlet side 650 and the outlet side 660.

[0061] The application is based on bionics and vibration control technology, and designs a bionic valve type one-way valve 600 by learning from the design of the blood circulation route of the human heart and simulating the structure of the heart valve. The bionic valve type one-way valve 600 is designed by comprehensively considering different environmental load changes and frequency domain characteristics, so as to suppress the resonance in the air spring, achieve variable damping, self-adaptation and over-smooth effect.

[0062] The bionic valve type one-way valve 600 can self-adaptively adjust the opening degree according to the gas flow by imitating the function of the valve in the heart. The valve 670 increases the opening degree as the gas flow rate increases, thereby increasing the damping; on the contrary, the opening degree decreases as the gas flow rate decreases, thereby reducing the damping, so as to achieve the purpose of self-adaptively adjusting the damping.

[0063] Since the pipeline interconnection 200 connects two air springs 100 through one-way flexible pipelines with one common external air chamber 210, the one-way flow design of the bionic valve type one-way valve 600 ensures that the gas can only flow in or out in one direction, avoiding pressure fluctuations and resonance caused by reverse flow; and according to the influence of the pipeline diameter on the resonance frequency and damping, when the pipeline diameter is small, the damping increases, causing the resonance frequency to increase, and when the pipeline diameter is large, the damping decreases, causing the resonance frequency to decrease. The pipeline diameter should be designed according to the actual situation.

[0064] Of course, in other embodiments, the bionic valve type one-way valve 600 can adopt the one-way valve in the prior art, and a pressure measuring sensor can be installed on the pipeline to control the bionic valve type one-way valve according to the pipeline pressure, which can also achieve the effect of controlling the opening and closing of the bionic valve type one-way valve according to the air pressure.

[0065] As shown in FIG. 1, Figures 3-4 In some embodiments of the application, the air spring 100 has an air cavity, and a partition 140 is arranged inside the air spring 100, which divides the air cavity into a main air chamber 150 and a built-in air chamber 160, which helps to change the volume grading inside the air spring 100, thereby expanding the adjustable range of the stiffness of the bionic double-pipe interconnected air spring; the main air chamber 150 has an air hole 151, which is connected to the pipeline interconnection 200, so that the main air chamber 150 is connected to the pipeline interconnection 200 through the air hole. Specifically, the main air chamber 150 is located on the upper side of the built-in air chamber 160, that is, the bearing part 130 is connected to one side of the air spring 100 close to the main air chamber 150, and the base is connected to one side of the air spring 100 close to the built-in air chamber 160.

[0066] As shown in FIG. 1, Figures 3-4As shown, in some embodiments of the present application, the partition 140 is provided with an electromagnetic valve 170 for opening the main air chamber 150 and the built-in air chamber 160, and the electromagnetic valve 170 can control the communication and isolation between the main air chamber 150 and the built-in air chamber 160. The electromagnetic valve 170 is generally an electromagnetic valve.

[0067] The electromagnetic valve 170 controls the communication and isolation between the main air chamber 150 and the built-in air chamber 160 by changing the opening degree, adjusts the volume of the air spring 100, and further adjusts the stiffness and damping. When the opening degree of the electromagnetic valve 170 is large, more air flows, so that the stiffness and damping are low; when the opening degree of the electromagnetic valve 170 is small, the air flow is limited, so that the stiffness and damping are high. Thus, the volume of the main air chamber 150 is graded, and the adjustable range of stiffness is expanded.

[0068] A bionic double-pipe interconnected air spring includes a main air chamber 150, a built-in air chamber 160, and an electromagnetic valve 170; a pipe interconnection 200 includes a one-way flexible pipe and a bionic valve one-way valve 600; an external air chamber 210 simulating a human body cavity and two left and right air springs 100 simulating a heart double cavity are connected to the external air chamber 210 simulating a human body cavity through a one-way flexible pipe simulating a blood vessel.

[0069] The built-in air chamber 160 of a bionic double-pipe interconnected air spring simulating a heart is integrated with the main air chamber 150, and the lower cover plate of the built-in air chamber 160 is in contact with the base; the upper cover plate of the main air chamber 150 is connected to the object to be isolated, and the air hole on the upper cover plate is connected to the one-way flexible pipe.

[0070] The electromagnetic valve 170 of a bionic double-pipe interconnected air spring simulating a heart is arranged between the built-in air chamber 160 and the main air chamber 150, and can dynamically control the communication and isolation between the main air chamber 150 and the built-in air chamber 160.

[0071] The built-in air chamber 160 of a bionic double-pipe interconnected air spring simulating a heart can realize volume grading change of the main air chamber 150, thereby expanding the adjustable range of stiffness of the air spring simulating a heart double cavity.

[0072] The four bionic valve one-way valves 600 of a bionic double-pipe interconnected air spring simulating a heart are respectively arranged in the one-way flexible pipes flowing into and out of the left and right air spring assemblies simulating a heart double cavity.

[0073] The one-way flexible pipe of a bionic double-pipe interconnected air spring simulating a heart can make the gas flow from one air spring assembly simulating a heart double cavity to one end of the external air chamber 210, and then flow from the other end of the external air chamber 210 to another air spring assembly simulating a heart double cavity, and the gas flow is independent and does not interfere with each other.

[0074] The bionic valve type one-way valve 600 of the bionic double-tube interconnected air spring simulates the flexible valve of the heart, and adaptively adjusts the opening degree of the bionic valve type one-way valve according to the gas flow rate, so as to realize adaptive adjustment of air damping.

[0075] The external air chamber 210 of the human body cavity is fixed in volume, and the upper end is provided with two air holes connected with the one-way flexible pipeline.

[0076] According to the vibration reduction performance requirements, the embodiment of the application utilizes the structure of the air spring, the gas and the fluid mechanics characteristics thereof, and learns from the blood circulation route of the human heart. The main air chamber 150 of the first air spring 110 on the left side corresponds to the left atrium, and the built-in air chamber 160 thereof corresponds to the left ventricle. The main air chamber 150 of the second air spring 120 on the right side corresponds to the right atrium, and the built-in air chamber 160 thereof corresponds to the right ventricle. The first one-way flexible pipeline 220 and the third one-way flexible pipeline 240 provided with the bionic valve type one-way valve 600 correspond to the human arteries, the second one-way flexible pipeline 230 and the fourth one-way flexible pipeline 250 provided with the bionic valve type one-way valve 600 correspond to the human veins, and the external air chamber 210 corresponds to the human body cavity. When the bionic double-tube interconnected air spring is in a compressed state, the gas flows from the first air spring 110 to the second air spring 120 through the first one-way flexible pipeline 220, the external air chamber 210 and the second one-way flexible pipeline 230. When the air spring is in a stretched state, the gas flows from the second air spring 120 to the first air spring 110 through the third one-way flexible pipeline 240, the external air chamber 210 and the fourth one-way flexible pipeline 250.

[0077] The application optimizes the single-tube connection structure of the conventional air spring, and designs the double-tube interconnected air spring, so that the resonance phenomenon in the spring can be inhibited, and the adaptive vibration reduction performance of the air spring in the full frequency domain is improved.

[0078] In the electromagnetic valve 170 described herein, the gas flow between the main air chamber 150 and the built-in air chamber 160 can be dynamically adjusted. By dynamically adjusting the opening and closing of the electromagnetic valve 170, the volume of the air spring 100 can be changed, the stiffness value and the damping value of the air spring 100 can be dynamically adjusted, and the adaptability and vibration isolation capacity thereof are further improved.

[0079] The bionic valve type one-way valve simulates the valve structure of the heart, and can adaptively adjust the opening degree thereof according to the gas flow. In different flow conditions, the opening degree of the bionic valve type one-way valve 600 increases with the increase of the gas flow passing therethrough. Through the flexible valve type bionic valve type one-way valve 600, adaptive adjustment of variable damping can be realized.

[0080] The preferred embodiments of the present application have been disclosed with specific reference to a preferred embodiment. A person with ordinary skill in the art understands that variations in, or replacements for, the preferred embodiments described herein can be made without departing from the spirit of the application. These equivalent variations or replacements are also encompassed within the scope of the claims defined below.

Claims

1. A bionic double tube interconnected air spring, characterized in that, The invention relates to a bionic double-tube interconnected air spring, comprising: an air spring (100) comprising a first air spring (110) and a second air spring (120), wherein a load bearing part (130) is arranged on the air spring (100); a pipeline interconnection part (200) in which a first channel (260) and a second channel (270) are formed, wherein the first channel (260) and the second channel (270) are both connected to the first air spring (110) and the second air spring (120), the gas flowing out of the first air spring (110) flows to the second air spring (120) through the first channel (260), the gas flowing out of the second air spring (120) flows to the first air spring (110) through the second channel (270), and the first channel (260) and the second channel (270) are at least partially one-way channels; the pipeline interconnection part (200) comprises a first one-way flexible pipe (220), a second one-way flexible pipe (230), a third one-way flexible pipe (240), a fourth one-way flexible pipe (250) and an external air chamber (210), wherein the external air chamber (210) is connected to the first one-way flexible pipe (220) and the second one-way flexible pipe (230) to form the first channel (260), and the external air chamber (210) is connected to the third one-way flexible pipe (240) and the fourth one-way flexible pipe (250) to form the second channel (270).

2. The bionic double tube interconnected air spring of claim 1, wherein, The external air chamber (210) is a vibration suppression air bag.

3. The bionic double tube interconnected air spring of claim 1, wherein, The pipeline interconnection part (200) further comprises an air inlet pipe (290) and an air outlet pipe (280), wherein the air inlet end of the air inlet pipe (290) is connected to the first one-way flexible pipe (220) and the third one-way flexible pipe (240), the air outlet end of the air inlet pipe (290) is connected to the external air chamber (210), the air inlet end of the air outlet pipe (280) is connected to the external air chamber (210), and the air outlet end of the air outlet pipe (280) is connected to the second one-way flexible pipe (230) and the fourth one-way flexible pipe (250).

4. The bionic double tube interconnected air spring of claim 3, wherein, The bionic double-tube interconnected air spring further comprises a first connecting pipe (400) and a second connecting pipe (500), wherein one end of the first connecting pipe (400) is connected to the first air spring (110), the other end of the first connecting pipe (400) is connected to the first one-way flexible pipe (220) and the fourth one-way flexible pipe (250), one end of the second connecting pipe (500) is connected to the second air spring (120), and the other end of the second connecting pipe (500) is connected to the second one-way flexible pipe (230) and the third one-way flexible pipe (240).

5. The bionic double tube interconnected air spring of claim 1, wherein, The bionic double-tube interconnected air spring further comprises a bionic valve type one-way valve (600), and the first one-way flexible pipe (220), the second one-way flexible pipe (230), the third one-way flexible pipe (240) and the fourth one-way flexible pipe (250) are all provided with the bionic valve type one-way valve (600).

6. The bionic double tube interconnected air spring of claim 5, wherein, The bionic valve type one-way valve (600) has an air inlet side (650) and an air outlet side (660), and the bionic valve type one-way valve (600) is conductive between the air inlet side (650) and the air outlet side (660) when the air pressure of the air inlet side (650) is greater than that of the air outlet side (660).

7. The bionic double tube interconnected air spring of claim 6, wherein, The bionic valve type one-way valve (600) comprises a plurality of valves (670) connected to the side wall of the first channel (260) or the second channel (270) and extending from the air inlet side (650) to the air outlet side (660); when the air pressure of the air inlet side (650) is less than or equal to that of the air outlet side (660), the plurality of valves (670) are gathered to the center to block the air inlet side (650) and the air outlet side (660); when the air pressure of the air inlet side (650) is greater than that of the air outlet side (660), the plurality of valves (670) are spread to the air outlet side (660) so that the air inlet side (650) and the air outlet side (660) are conductive.

8. The bionic double tube interconnected air spring according to any one of claims 1 to 7, characterized in that, The air spring (100) has a gas cavity, and a partition (140) is arranged inside the air spring (100), which divides the gas cavity into a main gas chamber (150) and a built-in gas chamber (160), and the main gas chamber (150) has a vent hole (151) communicating with the pipeline interconnector (200).

9. The bionic double tube interconnected air spring of claim 8, wherein, The partition (140) is provided with a solenoid valve (170), and the solenoid valve (170) is used to conduct the main gas chamber (150) and the built-in gas chamber (160).

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