Gas compression equipment, air suspension and vehicle

Abstract

The utility model provides gas compression equipment, an air suspension and a vehicle. The gas compression apparatus includes a cylinder and a piston member. The air cylinder comprises a cylinder body and an end cover. The end cover is connected to one end, in the first direction, of the cylinder body and defines a first cavity with the cylinder body. An air outlet is formed in the other end of the cylinder body in the first direction. A first air inlet channel is formed in the end cover. The piston piece is movably connected to the first cavity in the first direction. A first compression chamber and a second compression chamber are defined by the piston piece and the air cylinder. The first compression chamber communicates with the outside of the air cylinder through the first air inlet channel. The second compression chamber is communicated with the air outlet. A ventilation channel is formed in the piston piece. The air duct communicates with the first compression chamber and the second compression chamber. The structure of the piston piece is simplified, and therefore the machining difficulty of the piston piece can be reduced.

Description

Technical Field

[0001] The utility model generally relates to the technical field of vehicles, and more specifically to a gas compression device, an air suspension and a vehicle. Background Art

[0002] The gas compression device of the related art includes a cylinder, a piston connecting rod assembly and a driving mechanism. The piston connecting rod assembly includes a piston part and a connecting rod part. The piston part reciprocates in the cylinder to compress gas. However, the structure of the piston part in the related art is relatively complex and has high processing requirements. Summary of the Utility Model

[0003] A series of simplified concepts are introduced in the summary of the utility model, which will be further described in detail in the detailed implementation part. The summary of the utility model does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the protection scope of the claimed technical solution.

[0004] To at least partially solve the above problems, a first aspect of the present utility model provides a gas compression device, which includes:

[0005] A cylinder, the cylinder includes a cylinder block and an end cover, the end cover is connected to one end of the cylinder block in a first direction and encloses a first chamber with the cylinder block, an air outlet is provided at the other end of the cylinder block in the first direction, and a first air inlet passage is formed inside the end cover; and

[0006] A piston part, the piston part is movably connected to the first chamber along the first direction, a first compression chamber and a second compression chamber are formed by enclosing the piston part and the cylinder, the first compression chamber is communicated to the outside of the cylinder through the first air inlet passage, the second compression chamber is communicated to the air outlet, and a ventilation passage is formed inside the piston part, and the ventilation passage is communicated to the first compression chamber and the second compression chamber.

[0007] According to the gas compression device of the first aspect of the present utility model, by providing a first air inlet passage in the end cover of the cylinder and using the first air inlet passage to communicate the first compression chamber and the outside. Compared with the related art in which corresponding gas path channels are provided in the piston part, the structure of the piston part of the present utility model is simplified, thereby reducing the processing difficulty of the piston part.

[0008] Optionally, the gas compression device includes:

[0009] A first check valve, the first check valve is arranged in the first air inlet passage, and the first check valve is adapted to be conducted when the air pressure in the first compression chamber is less than the external atmospheric pressure, so that the external gas can enter the first compression chamber.

[0010] Optionally, the first one-way valve is located at one end of the first air inlet passage close to the first compression chamber.

[0011] Optionally, the gas compression device includes:

[0012] A second one-way valve disposed in the ventilation passage, the second one-way valve being adapted to conduct when the air pressure in the second compression chamber is less than the air pressure in the first compression chamber, so that the gas in the first compression chamber can enter the second compression chamber.

[0013] Optionally, the second one-way valve is located at one end of the ventilation passage close to the second compression chamber.

[0014] Optionally, the gas compression device includes:

[0015] A third one-way valve disposed at the air outlet, the third one-way valve being adapted to control the discharge of the gas in the second compression chamber when the piston member compresses the gas in the second compression chamber.

[0016] Optionally, the gas compression device further includes:

[0017] A connecting rod member, one end of the connecting rod member being connected to the piston member; and

[0018] A drive assembly connected to the other end of the connecting rod member, the drive assembly being adapted to drive the piston member to reciprocate in the first direction through the connecting rod member.

[0019] Optionally, the drive assembly includes a motor, a second chamber is formed inside the housing of the motor, the housing has a first air inlet, the first air inlet communicates with the second chamber, the cylinder block includes a second air inlet passage, and the second air inlet passage communicates the second chamber and the first air inlet passage.

[0020] Optionally, the housing of the motor is connected to the cylinder, and the first air inlet is located at an end of the housing away from the cylinder.

[0021] Optionally, an air inlet chamber is formed by enclosing the cylinder and the piston member, the air inlet chamber is disposed between the first compression chamber and the second compression chamber, the cylinder block includes a second air inlet and a second air inlet passage, the second air inlet communicates with the air inlet chamber, and the second air inlet passage communicates with the air inlet chamber and the first air inlet passage.

[0022] Optionally, in a plane perpendicular to the first direction, the orthographic projection of the second air inlet passage is located outside the piston member.

[0023] Optionally, the second air inlet passage extends along the first direction.

[0024] Optionally, the end cap includes a third air inlet that communicates with the first air inlet passage and the outside of the cylinder.

[0025] A second aspect of the present utility model provides an air suspension, and the air suspension includes the above gas compression device.

[0026] According to the air suspension of the second aspect of the present utility model, by applying the above gas compression device, the structure of the air suspension can be simplified, which helps to reduce the manufacturing difficulty and production cost of the air suspension.

[0027] A third aspect of the present utility model provides a vehicle, and the vehicle includes the above air suspension.

[0028] According to the vehicle of the third aspect of the present utility model, by applying the above air suspension, the structure of the vehicle can be simplified, the cost can be reduced, and to a certain extent, it also helps to achieve the lightweight of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following drawings of the embodiments of the present utility model are hereby incorporated as part of the present utility model for understanding the present utility model. The embodiments of the present utility model are shown in the drawings and their descriptions are used to explain the principles of the present utility model. In the drawings,

[0030] Figure 1 is a partial view of a gas compression device according to a preferred embodiment of the present utility model;

[0031] Figure 2 is Figure 1 a schematic structural view of the gas compression device shown in a partially cut-open state;

[0032] Figure 3 is Figure 1 and Figure 2 a three-dimensional view of the cylinder block shown in ;

[0033] Figure 4 is Figure 3 a side view of the cylinder block shown in ;

[0034] Figure 5 is a schematic structural view of a gas compression device according to a preferred embodiment of the present utility model;

[0035] Figure 6 is a schematic structural view of a gas compression device according to another preferred embodiment of the present utility model;

[0036] Figure 7 is a schematic structural view of a gas compression device according to still another preferred embodiment of the present utility model; and

[0037] Figure 8 It is a schematic structural diagram of a gas compression device according to another preferred embodiment of the present utility model.

[0038] Description of the reference numerals:

[0039] 100: Gas compression device 110: Cylinder

[0040] 110a: First chamber 110b: First compression chamber

[0041] 110c: Intake chamber 110d: Second compression chamber

[0042] 111: Cylinder block 111a: Gas outlet

[0043] 111b: Second intake port 111c: Second intake passage

[0044] 111d: First connection hole 111e: Second connection hole

[0045] 111f: Third connection hole 112: End cover

[0046] 112a: First intake passage 112b: Third intake port

[0047] 113: Piston member 113a: Vent passage

[0048] 114: Connecting rod member 115: First one-way valve

[0049] 116: Second one-way valve 117: Third one-way valve

[0050] 118: Connecting shaft 120: Driving assembly

[0051] 121: Motor 121a: Motor housing

[0052] 121b: First intake port 121c: Output shaft

[0053] 121d: Second chamber 122: Crankshaft

[0054] D1: First direction D2: Second direction Detailed implementation manners

[0055] In the following description, numerous specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the embodiments of the present utility model can be implemented without one or more of these details. In other examples, some well-known technical features are not described to avoid confusion with the embodiments of the present utility model.

[0056] To thoroughly understand the embodiments of the present utility model, detailed structures will be presented in the following description. Obviously, the implementation of the embodiments of the present utility model is not limited to the specific details familiar to those skilled in the art.

[0057] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present utility model. The singular forms "a", "an", and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they specify the presence of the described features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof.

[0058] The ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" does not imply the existence of a "second component" by itself, and the term "second component" does not imply the existence of a "first component" by itself. It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and similar expressions used in the present utility model are only for the purpose of illustration and are not limitations.

[0059] The expressions such as "parallel" / "perpendicular" and similar ones used in the present utility model include absolute parallel / perpendicular relationships and substantially parallel / perpendicular relationships (for example, relationships within a range of -5° to +5° from absolute parallel / perpendicular), and can achieve equivalent effects.

[0060] Hereinafter, the specific embodiments of the present utility model will be described in more detail with reference to the accompanying drawings, which show representative embodiments of the present utility model and do not limit the present utility model.

[0061] To solve the problem of the complex structure of the piston part in the related art, the present utility model provides a gas compression device, an air suspension having the gas compression device, and a vehicle having the air suspension.

[0062] The following will refer to Figures 1 to 8 the examples shown to detail a gas compression device 100 according to the present utility model, an air suspension having the same, and a vehicle having the air suspension.

[0063] First Embodiment

[0064] Refer to Figures 1 to 5 and in combination with Figures 6 to 8, the gas compression device 100 according to the first embodiment of the present invention may include a cylinder 110 and a piston member 113. The cylinder 110 includes a cylinder block 111 and an end cap 112. The end cap 112 is connected to one end of the cylinder block 111 in the first direction D1 and encloses a first chamber 110a with the cylinder block 111. In the figure, the first direction D1 may be the height direction in the installation state. Correspondingly, the end cap 112 is installed at the lower part of the cylinder block 111. Here, the installation state means the installation state when the gas compression device 100 is installed on a vehicle. An air outlet 111a is provided at the other end of the cylinder block 111 in the first direction D1. In the figure, the first direction D1 may be the height direction in the installation state. Correspondingly, the air outlet 111a is provided at the upper part of the cylinder block 111. A first air inlet passage 112a is formed inside the end cap 112. The piston member 113 is movably connected to the first chamber 110a along the first direction. The piston member 113 and the cylinder 110 enclose a first compression chamber 110b and a second compression chamber 110d. The first compression chamber 110b communicates with the outside of the cylinder 110 via the first air inlet passage 112a. Here, it can be understood that the first compression chamber 110b communicates with the outside of the cylinder 110 directly or indirectly via the first air inlet passage 112a. The second compression chamber 110d communicates with the air outlet 111a. A ventilation passage 113a is formed inside the piston member 113. The ventilation passage 113a communicates with the first compression chamber 110b and the second compression chamber 110d.

[0065] For the gas compression device 100 according to the present invention, by providing the first air inlet passage 112a in the end cap 112 of the cylinder 110, the first air inlet passage 112a is used to connect the first compression chamber 110b and the outside of the cylinder 110. Compared with the related art in which a corresponding gas passage is provided in the piston member 113, the present invention simplifies the structure of the piston member 113, thereby reducing the processing difficulty of the piston member 113.

[0066] Continue to refer to Figures 1 to 5 , and in combination with Figures 6 to 8 , for example, the gas compression device 100 may include a first one-way valve 115. The first one-way valve 115 is provided at one end of the first air inlet passage 112a close to the first compression chamber 110b. The first one-way valve 115 is adapted to conduct or open when the air pressure in the first compression chamber 110b is less than the external atmospheric pressure, so that the external gas can enter the first compression chamber 110b. That is, the first one-way valve 115 conducts or opens when the first compression chamber 110b sucks air. On the contrary, the first one-way valve 115 cuts off or closes when the first compression chamber 110b compresses, so as to prevent the compressed gas in the first compression chamber 110b from being discharged to the outside via the first air inlet passage 112a, thereby ensuring the airtightness of the first compression chamber 110b during compression.

[0067] In other embodiments, the first one-way valve 115 is disposed at other positions of the first intake passage 112a. Alternatively, the first one-way valve 115 may be indirectly mounted to the first intake passage 112a through an intermediate member, such as a pipe fitting like a gas pipeline.

[0068] Referring again to Figures 1 to 5 and in combination with Figures 6 to 8 , for example, the gas compression device 100 may include a second one-way valve 116. The second one-way valve 116 is disposed at one end of the ventilation passage 113a close to the second compression chamber 110d. The second one-way valve 116 is adapted to conduct or open when the air pressure in the second compression chamber 110d is less than the air pressure in the first compression chamber 110b, so that the gas in the first compression chamber 110b can enter the second compression chamber 110d. That is, the second one-way valve 116 conducts or opens when the second compression chamber 110d sucks air from the first compression chamber 110b. Conversely, the second one-way valve 116 cuts off or closes when the second compression chamber 110d is compressed, so as to prevent the compressed gas in the second compression chamber 110d from being discharged to the first compression chamber 110b through the ventilation passage 113a, thereby ensuring the airtightness of the first compression chamber 110b and the second compression chamber 110d.

[0069] In other embodiments, the second one-way valve 116 may be disposed at other positions of the ventilation passage 113a. Alternatively, the second one-way valve 116 may be indirectly mounted to the ventilation passage 113a through an intermediate member, such as a pipe fitting like a gas pipeline.

[0070] Referring again to Figures 1 to 5 and in combination with Figures 6 to 8 , further, the gas compression device 100 may include a third one-way valve 117. The third one-way valve 117 is disposed at the air outlet 111a. The third one-way valve 117 is adapted to conduct or open when the piston member 113 compresses the gas in the second compression chamber 110d, so as to control the discharge of the gas in the second compression chamber 110d. Conversely, the third one-way valve 117 cuts off or closes when the second compression chamber 110d sucks air from the first compression chamber 110b, so as to prevent the gas from entering the second compression chamber 110d through the third one-way valve 117 at the air outlet 111a.

[0071] In other embodiments, the third one-way valve 117 may be indirectly mounted to the air outlet 111a through an intermediate member. The intermediate member here is, for example, a pipe fitting like a gas pipeline.

[0072] Referring again to Figures 1 to 5 and in combination with Figures 6 to 8In addition, the gas compression device 100 may further include a connecting rod 114 and a driving assembly 120. One end of the connecting rod 114 is connected to the piston 113. The driving assembly 120 is connected to the other end of the connecting rod 114. The driving assembly 120 is suitable for driving the piston 113 to reciprocate along the first direction through the connecting rod 114. The driving assembly 120 and the piston 113 are connected by the connecting rod 114, and the power of the driving assembly 120 can be transmitted to the piston 113, thereby driving the piston 113 to reciprocate in the first direction of the cylinder 111 to achieve compressed air.

[0073] See also Figures 1 to 5 Combined with Figures 6 to 8 For example, the drive assembly 120 may include a motor 121 and a crankshaft 122. The output shaft 121c of the motor 121 is connected to the connecting rod 114 through the crankshaft 122. A second chamber 121d is formed inside the housing 121a of the motor 121. A first air inlet 121b begins at the end of the housing 121a away from the cylinder 110. The first air inlet 121b is connected to the second chamber 121d. The cylinder body 111 may include a second air inlet 111c. The second air inlet 111c is connected to the second chamber 121d and the first air inlet 112a. Specifically, the motor 121 and the crankshaft 122 are connected to the connecting rod 114, so that the connecting rod 114 can be driven to reciprocate in the first direction during the rotation of the crankshaft 122, and the piston 113 is driven to reciprocate in the first direction through the connecting rod 114. At the same time, by providing the first air inlet 121b in the housing 121a, the outside air is allowed to enter the second chamber 121d of the housing 121a. When the second chamber 121d and the second air inlet 111c are in communication, the outside air enters the first compression chamber 110b via the second chamber 121d, the second air inlet 111c, and the first air inlet 112a in sequence. In this process, the air flows through the motor 121, and can take away part of the heat of the motor 121, thereby achieving heat dissipation of the motor 121.

[0074] Optionally, the housing 121a of the motor 121 is connected to the cylinder 110. The axial direction of the motor 121 is perpendicular to the first direction D1. The axial direction of the motor 121 may be the second direction D2 indicated in the figure. The first air inlet 121b is located at the end of the housing 121a away from the cylinder 110. By arranging the first air inlet 121b at the end of the housing 121a away from the cylinder 110, the outside air is allowed to enter the second chamber 121d of the housing 121a. In the state where the second chamber 121d and the second air inlet 111c are connected, the outside air enters the first compression chamber 110b in sequence via the second chamber 121d, the second air inlet 111c, and the first air inlet 112a. In this process, the contact area between the air flow and the motor 121 is larger, and the heat can be fully exchanged with the motor 121, thereby improving the heat dissipation efficiency and heat dissipation effect of the motor 121. Furthermore, the second air inlet 111c is located on a side of the cylinder body 111 close to the casing 121a, which is conducive to simplifying the structure and reducing costs.

[0075] Optionally, the housing 121a of the motor 121 is not connected to the cylinder 110. The cylinder 110 may be indirectly connected to the motor 121 through an air pipeline, and the second air inlet 111c is connected to the second chamber 121d of the motor 121 via the air pipeline.

[0076] like Figure 3 and Figure 4 As shown, specifically, a first connecting hole 111d connected to the second air inlet 111c is provided on the end surface of the cylinder body 111 facing the end cover 112. A second connecting hole 111e connected to the second air inlet 111c is provided on the inner wall of the cylinder body 111. A third connecting hole 111f connected to the second air inlet 111c is provided on the outer wall of the cylinder body 111. The second connecting hole 111e and the third connecting hole 111f are both located above the first connecting hole 111d. The second connecting hole 111e and the third connecting hole 111f can be directly opposite to each other along the radial direction of the cylinder 110, or can be staggered.

[0077] exist Figures 5 to 8 In the example shown, the output shaft 121c of the motor 121 and the crankshaft 122 are constructed as an integral part. The crankshaft 122 can be connected to one end of the connecting rod 114 through a bearing. The other end of the connecting rod 114 can be connected to the connecting shaft 118 through a bearing. The connecting shaft 118 is connected to the piston member 113. The axial direction of the connecting shaft 118 here is parallel to the axial direction of the crankshaft 122.

[0078] In other examples, the output shaft of the motor may be connected to the crankshaft via a coupling or the like such that the output shaft of the motor and the crankshaft are fixed relative to each other.

[0079] See also Figure 5 , and combined with Figures 6 to 8, Further, in a plane perpendicular to the first direction, the orthographic projection of the second intake passage 111c is located outside the piston member 113. This can ensure that the second intake passage 111c can effectively avoid the movement space of the piston member 113, and at the same time reduce the complexity of the structure of the first chamber 110a of the cylinder 110.

[0080] Refer to Figures 5 to 7 , Further, the second intake passage 111c extends along the first direction. This can shorten the size of the second intake passage 111c on the basis of ensuring the connection between the first compression chamber and the first intake passage 112a, thereby facilitating the simplification of the cylinder block 111 structure and reducing the processing difficulty of the cylinder block 111.

[0081] Second Embodiment

[0082] Refer to Figures 1 to 4 , and Figure 6 and Figure 7 , For the gas compression device 100 according to the second embodiment of the present invention, the same parts as those of the gas compression device 100 according to the first embodiment of the present invention will not be described in detail here, and the differences will be emphasized.

[0083] In this embodiment, an intake chamber 110c is formed by surrounding the cylinder 110 and the piston member 113. The intake chamber 110c is provided between the first compression chamber 110b and the second compression chamber 110d, and the intake chamber 110c is arranged separately from the first compression chamber 110b and the second compression chamber 110d. The cylinder block 111 may include a second intake port 111b and a second intake passage 111c. The second intake port 111b communicates with the intake chamber 110c. The second intake passage 111c communicates with the intake chamber 110c and the first intake passage 112a. By adding the second intake port 111b here, the intake air volume per unit time can be increased, that is, it is beneficial to increase the intake efficiency of air.

[0084] As Figure 6 shown, as a modified embodiment of the second embodiment, the first intake port 121b may not be provided in the motor 121 of the first embodiment. Only the second intake port 111b of the cylinder block 111 is retained.

[0085] Third Embodiment

[0086] Refer to Figures 1 to 4 , and Figure 8 , For the gas compression device 100 according to the third embodiment of the present invention, the same parts as those of the gas compression device 100 according to the first embodiment of the present invention will not be described in detail here, and the differences will be emphasized.

[0087] In this embodiment, the end cap 112 may include a third air inlet 112b. The third air inlet 112b communicates with the first air inlet passage 112a. By providing the third air inlet 112b in the end cap 112, the intake stroke can be shortened and the intake efficiency can be improved.

[0088] As a variant embodiment of the third embodiment, only the third air inlet 112b may be provided in the end cap 112.

[0089] The gas compression device 100 of the above-described first embodiment, second embodiment, and third embodiment can be implemented independently, or can be deformed or combined arbitrarily with each other to obtain more embodiments.

[0090] Referring to Figures 1 to 8 , an embodiment of the present invention also provides an air suspension (not shown). The air suspension is applicable to a vehicle. The air suspension may include the above-described gas compression device 100.

[0091] According to the air suspension of the present invention, by applying the above-described gas compression device 100, the structure of the air suspension can be simplified, which helps to reduce the manufacturing difficulty and production cost of the air suspension.

[0092] An embodiment of the present invention also provides a vehicle (not shown). The vehicle includes the above-described air suspension.

[0093] According to the vehicle of the embodiment of the present invention, by applying the above-described air suspension, the structure of the vehicle can be simplified, the cost can be reduced, and to a certain extent, it also helps to achieve the lightweight of the vehicle.

[0094] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the technical field of the present invention. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Terms such as "provided" as used herein can mean that one component is directly attached to another component, or can also mean that one component is attached to another component through an intermediate member. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0095] The present invention has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of exemplification and illustration, and are not intended to limit the present invention within the scope of the described embodiments. Those skilled in the art can understand that according to the teachings of the present invention, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection required by the present invention.

Claims

1. A gas compression device (100), characterized in that: The gas compression device (100) comprises: A cylinder (110), the cylinder (110) comprising a cylinder body (111) and an end cover (112), the end cover (112) being connected to one end of the cylinder body (111) in a first direction (D1) and enclosing with the cylinder body (111) to form a first chamber (110a), the other end of the cylinder body (111) in the first direction (D1) being provided with an air outlet (111a), and a first air inlet passage (112a) being formed inside the end cover (112); and A piston member (113), the piston member (113) is movably connected to the first chamber (110a) along the first direction (D1), the piston member (113) and the cylinder (110) are surrounded by a first compression chamber (110b) and a second compression chamber (110d), the first compression chamber (110b) is connected to the outside of the cylinder (110) via the first air inlet (112a), the second compression chamber (110d) is connected to the air outlet (111a), and an air vent (113a) is formed inside the piston member (113), the air vent (113a) is connected to the first compression chamber (110b) and the second compression chamber (110d).

2. The gas compression device (100) according to claim 1, characterized in that: The gas compression device (100) comprises: A first one-way valve (115), wherein the first one-way valve (115) is arranged in the first air inlet passage (112a), and the first one-way valve (115) is suitable for being opened when the air pressure in the first compression chamber (110b) is lower than the external atmospheric pressure, so that external gas can enter the first compression chamber (110b).

3. The gas compression device (100) according to claim 2, characterized in that: The first one-way valve (115) is located at one end of the first air inlet passage (112a) close to the first compression chamber (110b).

4. The gas compression device (100) according to claim 1, characterized in that The gas compression device (100) comprises: A second one-way valve (116), the second one-way valve (116) is arranged in the air passage (113a), and the second one-way valve (116) is suitable for being opened when the air pressure of the second compression chamber (110d) is lower than the air pressure of the first compression chamber (110b), so that the gas in the first compression chamber (110b) can enter the second compression chamber (110d).

5. The gas compression device (100) according to claim 4, characterized in that: The second one-way valve (116) is located at one end of the air passage (113a) close to the second compression chamber (110d).

6. The gas compression device (100) according to claim 1, characterized in that: The gas compression device (100) comprises: A third one-way valve (117), wherein the third one-way valve (117) is disposed at the gas outlet (111a), and the third one-way valve (117) is suitable for controlling the discharge of gas in the second compression chamber (110d) when the piston member (113) compresses the gas in the second compression chamber (110d).

7. The gas compression device (100) according to claim 1, characterized in that The gas compression device (100) further comprises: a connecting rod member (114), one end of which is connected to the piston member (113); and A driving assembly (120) is connected to the other end of the connecting rod (114), and the driving assembly (120) is suitable for driving the piston (113) to reciprocate along the first direction (D1) through the connecting rod (114).

8. The gas compression device (100) according to claim 7, characterized in that The driving assembly (120) comprises a motor (121), a second chamber (121d) is formed inside a casing (121a) of the motor (121), a first air inlet (121b) is provided in the casing (121a), the first air inlet (121b) is connected to the second chamber (121d), and the cylinder body (111) comprises a second air inlet passage (111c), the second air inlet passage (111c) is connected to the second chamber (121d) and the first air inlet passage (112a).

9. The gas compression device (100) according to claim 8, characterized in that The housing (121a) of the motor (121) is connected to the cylinder (110), and the first air inlet (121b) is located at an end of the housing (121a) away from the cylinder (110).

10. The gas compression device (100) according to claim 1, characterized in that The cylinder (110) and the piston member (113) are surrounded by an air intake chamber (110c), and the air intake chamber (110c) is arranged between the first compression chamber (110b) and the second compression chamber (110d). The cylinder body (111) includes a second air intake port (111b) and a second air intake passage (111c), and the second air intake port (111b) is connected to the air intake chamber (110c), and the second air intake passage (111c) is connected to the air intake chamber (110c) and the first air intake passage (112a).

11. The gas compression device (100) according to any one of claims 8 to 10, characterized in that: In a plane perpendicular to the first direction (D1), an orthographic projection of the second air inlet passage (111c) is located outside the piston member (113).

12. The gas compression device (100) according to any one of claims 8 to 10, characterized in that: The second air inlet passage (111c) is extended along the first direction (D1).

13. The gas compression device (100) according to claim 1, characterized in that The end cover (112) includes a third air inlet (112b), and the third air inlet (112b) is connected to the first air inlet passage (112a) and the outside of the cylinder (110).

14. An air suspension, characterized in that: The air suspension comprises a gas compression device (100) according to any one of claims 1 to 13.

15. A vehicle, characterized in that: The vehicle comprises an air suspension according to claim 14.

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