Vibration isolation device for air suspension air pump and automobile

Abstract

The present invention discloses a vibration isolation device for an air suspension air pump and a car, and relates to the technical field of automobile vibration reduction. The vibration isolation device comprises: a mounting plate, at least one first-stage vibration isolation assembly and at least one second-stage vibration isolation assembly, each of the first-stage vibration isolation assemblies is connected to the mounting plate and the air pump, and each of the second-stage vibration isolation assemblies is connected to the mounting plate and the car body. According to the present invention, when the air suspension air pump of the vehicle vibrates due to the vehicle passing through a pit, a bump, a turn, or the air pump's own operation, the air pump is connected to the mounting plate through the first-stage vibration isolation assembly, and the first-stage vibration isolation assembly will buffer most of the vibration impact force, and the remaining impact force is transmitted to the mounting plate, and the mounting plate is connected to the car body through the second-stage vibration isolation assembly, and the second-stage vibration isolation assembly buffers the remaining impact force again. The vibration generated by the air pump is buffered by the two-stage vibration isolation assembly, and the vibration transmitted to the car body is greatly reduced, thereby improving the user's driving experience.

Description

Technical Field

[0001] The invention relates to the technical field of automobile vibration reduction, and in particular to a vibration isolation device for an air suspension air pump and an automobile. Background Art

[0002] As people's demand for vehicle driving comfort continues to increase, more and more cars on the market use air suspension. When the air suspension is in use, its own air pump inflates the air spring or air tank according to demand. However, the air suspension air pump will vibrate when the vehicle passes through a pit, a bump, a turn, or the air pump itself works. The vibration is transmitted to the car body, affecting the driving experience. Summary of the invention

[0003] The embodiments of the present invention provide a vibration isolation device for an air suspension air pump and a vehicle, so as to solve the technical problem in the related art that the air suspension air pump of the existing vehicle generates vibration due to the vehicle passing through a pit, a bump, the vehicle turning or the air pump's own operation, and the vibration will be transmitted to the vehicle body, affecting the driving experience.

[0004] In a first aspect, a vibration isolation device for an air suspension air pump is provided, comprising:

[0005] Mounting plate;

[0006] at least one first-stage vibration isolation assembly, each first-stage vibration isolation assembly being connected to the mounting plate and the air pump;

[0007] At least one second-stage vibration isolation assembly, each of the second-stage vibration isolation assemblies is connected to the mounting plate and the vehicle body.

[0008] In some embodiments, at least one first mounting hole is provided on the mounting plate, each first mounting hole is equipped with a first fastener, and each first-stage vibration isolation assembly clamps the mounting plate at one of the first mounting holes and is connected to the mounting plate and the air pump through a corresponding first fastener.

[0009] In some embodiments, each of the first-stage vibration isolation components includes: an upper limit washer, an inner sleeve, a lower limit washer, an upper rubber vibration isolation pad, a lower rubber vibration isolation pad, an upper spring, and a lower spring;

[0010] The upper limit gasket, inner sleeve and lower limit gasket are sequentially sleeved on a corresponding one of the first fasteners, the upper rubber vibration isolation pad and lower rubber vibration isolation pad are sleeved on the inner sleeve and sleeved with each other to clamp a corresponding one of the first mounting holes, the upper spring is sleeved on the upper rubber vibration isolation pad and its two ends respectively abut against the upper limit gasket and the upper rubber vibration isolation pad, the lower spring is sleeved on the lower rubber vibration isolation pad and its two ends respectively abut against the lower rubber vibration isolation pad and the lower limit gasket.

[0011] In some embodiments, a plurality of first protrusions are circumferentially provided at one end of the upper rubber vibration isolation pad and the lower rubber vibration isolation pad.

[0012] In some embodiments, the other ends of the upper rubber vibration isolation pad and the lower rubber vibration isolation pad are each provided with a semicircular ring sleeve.

[0013] In some embodiments, at least one second mounting hole is provided on the mounting plate, each second mounting hole is equipped with a second fastener, and each second-stage vibration isolation assembly clamps the mounting plate at a second mounting hole and is connected to the mounting plate and the vehicle body through a corresponding second fastener.

[0014] In some embodiments, each of the second-stage vibration isolation components includes: an upper limit sleeve, a lower limit sleeve and a rubber vibration isolation block;

[0015] The upper limit sleeve and the lower limit sleeve are sequentially sleeved on a corresponding second fastener, and the rubber vibration isolation block clamps a corresponding second mounting hole and is sleeved on the upper limit sleeve and the lower limit sleeve.

[0016] In some embodiments, the rubber vibration isolation block includes an upper vibration isolation portion and a lower vibration isolation portion connected to each other, the upper vibration isolation portion and the lower vibration isolation portion are both in a truncated cone shape, and an annular groove is provided between the upper vibration isolation portion and the lower vibration isolation portion.

[0017] In some embodiments, a plurality of second protrusions are provided on both the upper vibration isolation portion and the lower vibration isolation portion of the rubber vibration isolation block.

[0018] In a second aspect, an automobile is provided, comprising the aforementioned vibration isolation device for the air suspension air pump.

[0019] The beneficial effects brought about by the technical solution provided by the present invention include:

[0020] An embodiment of the present invention provides a vibration isolation device for an air suspension air pump and a vehicle, which are provided with a first-stage vibration isolation component and a second-stage vibration isolation component. When the air suspension air pump of the vehicle vibrates due to the vehicle passing over a pit, a bump, a turn, or the air pump's own operation, the air pump is connected to a mounting plate through the first-stage vibration isolation component. The first-stage vibration isolation component will buffer most of the vibration impact force, and the remaining impact force is transmitted to the mounting plate. The mounting plate is connected to the vehicle body through the second-stage vibration isolation component. The second-stage vibration isolation component again buffers the remaining impact force. The vibration generated by the air pump is buffered by the two-stage vibration isolation components, and the vibration transmitted to the vehicle body is greatly reduced, thereby improving the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic structural diagram of a vibration isolation device for an air suspension air pump provided in an embodiment of the present invention;

[0023] Figure 2 An exploded schematic diagram of a vibration isolation device for an air suspension air pump provided by an embodiment of the present invention;

[0024] Figure 3 A schematic structural diagram of a first-stage vibration isolation assembly provided in an embodiment of the present invention;

[0025] Figure 4 An exploded schematic diagram of a first-stage vibration isolation assembly provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of an upper rubber vibration isolation pad provided in an embodiment of the present invention;

[0027] Figure 6 A schematic structural diagram of a second-stage vibration isolation assembly provided in an embodiment of the present invention;

[0028] Figure 7 An exploded schematic diagram of a second-stage vibration isolation assembly provided by an embodiment of the present invention;

[0029] Figure 8 A schematic diagram of a rubber vibration isolation block provided in an embodiment of the present invention;

[0030] In the figure:

[0031] 1. Mounting plate; 11. First mounting hole; 12. First fastener; 13. Second mounting hole; 14. Second fastener;

[0032] 2. First-stage vibration isolation assembly; 21. Upper limit gasket; 22. Inner sleeve; 23. Lower limit gasket; 24. Upper rubber vibration isolation pad; 241. First protrusion; 242. Semicircular ring sleeve; 25. Lower rubber vibration isolation pad; 26. Upper spring; 27. Lower spring;

[0033] 3. Second-stage vibration isolation assembly; 31. Upper limit sleeve; 32. Lower limit sleeve; 33. Rubber vibration isolation block; 331. Upper vibration isolation part; 332. Lower vibration isolation part; 333. Annular groove; 334. Second protrusion;

[0034] 4. Air pump. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] An embodiment of the present invention provides a vibration isolation device for an air suspension air pump, which can solve the technical problem that the air suspension air pump of an existing vehicle generates vibration due to the vehicle passing through a pit, a bump, a turn, or the air pump's own operation, and the vibration is transmitted to the vehicle body, affecting the driving experience.

[0037] See also Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a vibration isolation device for an air suspension air pump, comprising: a mounting plate 1 , at least one first-stage vibration isolation component 2 , and at least one second-stage vibration isolation component 3 .

[0038] Each of the first-stage vibration isolation components 2 is connected to the mounting plate 1 and the air pump 4 , and each of the second-stage vibration isolation components 3 is connected to the mounting plate 1 and the vehicle body.

[0039] Specifically, see Figure 1 and Figure 2 As shown, the embodiment of the present invention is provided with three first-stage vibration isolation components 2, which are arranged in a triangle and connected to the middle part of the mounting plate 1, and the lower ends of the three first-stage vibration isolation components 2 are connected to the air pump 4. The embodiment of the present invention is provided with four second-stage vibration isolation components 3, which are arranged in a rectangular shape and connected to the four corners of the mounting plate 1, and the upper ends of the four second-stage vibration isolation components 3 are connected to the vehicle body (not shown in the figure).

[0040] The vibration isolation device of the air suspension air pump in the embodiment of the present invention is provided with a first-stage vibration isolation assembly and a second-stage vibration isolation assembly. When the air suspension air pump of the vehicle vibrates due to the vehicle passing over a pit, a bump, a turn, or the air pump's own operation, the air pump is connected to the mounting plate through the first-stage vibration isolation assembly. The first-stage vibration isolation assembly will buffer most of the vibration impact force, and the remaining impact force will be transmitted to the mounting plate. The mounting plate is connected to the vehicle body through the second-stage vibration isolation assembly. The second-stage vibration isolation assembly will buffer the remaining impact force again. The vibration generated by the air pump is buffered by the two-stage vibration isolation assembly, and the vibration transmitted to the vehicle body is greatly reduced, thereby improving the user's driving experience.

[0041] As an optional implementation, in an embodiment of the invention, the mounting plate 1 is provided with at least one first mounting hole 11, each of the first mounting holes 11 is provided with a first fastener 12, and each of the first-stage vibration isolation components 2 clamps the mounting plate 1 at one of the first mounting holes 11 and is connected to the mounting plate 1 and the air pump 4 through a corresponding first fastener 12. Specifically, see Figure 1 and Figure 2 As shown, the mounting plate 1 is provided with three first mounting holes 11 in the middle, which are arranged in a triangle, and the middle of the mounting plate 1 is concave to prevent the first-stage vibration isolation assembly 2 from contacting the vehicle body during use.

[0042] As an optional implementation, in an embodiment of the invention, see Figure 3 and Figure 4 As shown, each of the first-stage vibration isolation components 2 includes: an upper limit gasket 21, an inner sleeve 22, a lower limit gasket 23, an upper rubber vibration isolation pad 24, a lower rubber vibration isolation pad 25, an upper spring 26 and a lower spring 27.

[0043] The upper limit gasket 21, the inner sleeve 22, and the lower limit gasket 23 are sequentially sleeved on the corresponding one of the first fasteners 12, the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 are sleeved on the inner sleeve 22 and are sleeved and clamped with each other to the corresponding one of the first mounting holes 11, the upper spring 26 is sleeved on the upper rubber vibration isolation pad 24 and its two ends respectively abut against the upper limit gasket 21 and the upper rubber vibration isolation pad 24, the lower spring 27 is sleeved on the lower rubber vibration isolation pad 25 and its two ends respectively abut against the lower rubber vibration isolation pad 25 and the lower limit gasket 23.

[0044] Specifically, when the air pump 4 is subjected to a small downward impact vibration, the upper spring 26 is compressed, thereby playing a buffering role. When the air pump 4 is subjected to a large downward impact, since the upper spring 26 has a small stiffness, it can no longer restrain the air pump 4 from moving downward. At this time, the upper rubber vibration isolation pad 24 contacts the upper limit gasket 21, and the upper rubber vibration isolation pad 24 is compressed, and works together with the upper spring 26 to prevent the air pump 4 from moving further downward. The upper rubber vibration isolation pad 24 contacts the upper limit gasket 21, and also prevents the upper spring 26 from coiling and producing metal impact noise. When the air pump 4 is subjected to an upward impact, the buffering principle is the same as when it is subjected to a downward impact. The lower spring 27 plays a buffering role during small impact vibrations, and the lower rubber vibration isolation pad 25 and the lower spring 27 work together during large impact vibrations.

[0045] In addition, in order to prevent the first fastener 12 (which can be a bolt) from compressing the upper rubber vibration isolation pad 24, the lower rubber vibration isolation pad 25, the upper spring 26 and the lower spring 27 too tightly when being connected to the air pump 4, an inner sleeve 22 is installed inside the upper rubber vibration isolation pad 24, the lower rubber vibration isolation pad 25, the upper spring 26 and the lower spring 27. The inner sleeve 22 will limit the displacement of the first fastener 12 when connected, thereby ensuring that the upper rubber vibration isolation pad 24, the lower rubber vibration isolation pad 25, the upper spring 26 and the lower spring 27 are compressed appropriately.

[0046] As an optional implementation, in an embodiment of the invention, see Figure 5 As shown, one end of the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 are both circumferentially provided with a plurality of first protrusions 241. Specifically, the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 have the same structure, and the plurality of first protrusions 241 make the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 change their stiffness from small to large when they contact the upper limit gasket 21 and the lower limit gasket 23 respectively, which is beneficial to vibration reduction.

[0047] As an optional implementation, in an embodiment of the invention, see Figure 3 As shown, the other ends of the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 are each provided with a semicircular ring sleeve 242, and the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 have the same structure, and the semicircular ring sleeve 242 facilitates the fitting connection of the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25.

[0048] As an optional implementation, in an embodiment of the invention, see Figure 2 As shown, the mounting plate 1 is provided with at least one second mounting hole 13, each of the second mounting holes 13 is provided with a second fastener 14, and each of the second-stage vibration isolation components 3 clamps the mounting plate 1 at one of the second mounting holes 13 and is connected to the mounting plate 1 and the vehicle body through a corresponding second fastener 14. Specifically, the mounting plate 1 is provided with four second mounting holes 13 at four corners.

[0049] As an optional implementation, in an embodiment of the invention, see Figure 6 and Figure 7 As shown, each of the second-stage vibration isolation components 3 includes an upper limit sleeve 31 , a lower limit sleeve 32 and a rubber vibration isolation block 33 .

[0050] The upper limit sleeve 31 and the lower limit sleeve 32 are sequentially sleeved on a corresponding second fastener 14 , and the rubber vibration isolation block 33 clamps a corresponding second mounting hole 13 and is sleeved on the upper limit sleeve 31 and the lower limit sleeve 32 .

[0051] Specifically, when the air pump 4 is subjected to downward impact vibration, if it is buffered by the first-stage vibration isolation assembly 2, there is still residual impact transmitted to the mounting plate 1, and the mounting plate 1 is clamped by the rubber vibration isolation block 33. The residual impact is buffered and attenuated again by the rubber vibration isolation block 33, thereby greatly reducing the vibration reaching the vehicle body. Therefore, the vibration generated by the air pump 4 is finally transmitted to the vehicle body after being buffered and attenuated by the first-stage vibration isolation assembly 2 and the second-stage vibration isolation assembly 3. The vibration amount is very small and does not affect the driving experience. In addition, in order to prevent the rubber vibration isolation block 33 from being over-compressed by the second fastener 14, the rubber vibration isolation block 33 can be sleeved on the upper limit sleeve 31 and the lower limit sleeve 32.

[0052] As an optional implementation, in an embodiment of the invention, see Figure 8 As shown, the rubber vibration isolation block 33 includes an upper vibration isolation portion 331 and a lower vibration isolation portion 332 connected to each other, and the upper vibration isolation portion 331 and the lower vibration isolation portion 332 are both in a truncated cone shape. An annular groove 333 is provided between the upper vibration isolation portion 331 and the lower vibration isolation portion 332 to facilitate the installation and clamping of the mounting plate 1.

[0053] As an optional implementation, in an embodiment of the invention, see Figure 8 As shown, a plurality of second protrusions 334 are provided on the upper vibration isolation part 331 and the lower vibration isolation part 332 of the rubber vibration isolation block 33. The plurality of second protrusions 334 make the stiffness of the upper vibration isolation part 331 and the lower vibration isolation part 332 change from small to large when they contact the upper limit sleeve 31 and the lower limit sleeve 32 respectively, which is beneficial to vibration reduction.

[0054] The embodiment of the present invention provides a car, comprising the aforementioned vibration isolation device for an air suspension pump, wherein the vibration isolation device for an air suspension pump comprises: a mounting plate 1 , at least one first-stage vibration isolation component 2 , and at least one second-stage vibration isolation component 3 .

[0055] Each of the first-stage vibration isolation components 2 is connected to the mounting plate 1 and the air pump 4 , and each of the second-stage vibration isolation components 3 is connected to the mounting plate 1 and the vehicle body.

[0056] Specifically, see Figure 1 and Figure 2 As shown, the embodiment of the present invention is provided with three first-stage vibration isolation components 2, which are arranged in a triangle and connected to the middle part of the mounting plate 1, and the lower ends of the three first-stage vibration isolation components 2 are connected to the air pump 4. The embodiment of the present invention is provided with four second-stage vibration isolation components 3, which are arranged in a rectangular shape and connected to the four corners of the mounting plate 1, and the upper ends of the four second-stage vibration isolation components 3 are connected to the vehicle body.

[0057] The automobile in the embodiment of the present invention has an air suspension air pump whose vibration isolation device is provided with a first-stage vibration isolation component and a second-stage vibration isolation component. When the air suspension air pump of the vehicle vibrates due to the vehicle passing over a pit, a bump, a turn, or the air pump's own operation, the air pump is connected to the mounting plate through the first-stage vibration isolation component. The first-stage vibration isolation component will buffer most of the vibration impact force, and the remaining impact force will be transmitted to the mounting plate. The mounting plate is connected to the vehicle body through the second-stage vibration isolation component. The second-stage vibration isolation component will buffer the remaining impact force again. The vibration generated by the air pump is buffered by the two-stage vibration isolation components, and the vibration transmitted to the vehicle body is greatly reduced, thereby improving the user's driving experience.

[0058] As an optional embodiment, in an embodiment of the invention, at least one first mounting hole 11 is provided on the mounting plate 1, each of the first mounting holes 11 is equipped with a first fastener 12, and each of the first-stage vibration isolation components 2 clamps the mounting plate 1 at one of the first mounting holes 11 and is connected to the mounting plate 1 and the air pump 4 through a corresponding one of the first fasteners 12.

[0059] Specifically, see Figure 1 and Figure 2 As shown, the mounting plate 1 is provided with three first mounting holes 11 in the middle, which are arranged in a triangle, and the middle of the mounting plate 1 is concave to prevent the first-stage vibration isolation assembly 2 from contacting the vehicle body during use.

[0060] As an optional implementation, in an embodiment of the invention, see Figure 3 and Figure 4 As shown, each of the first-stage vibration isolation components 2 includes: an upper limit gasket 21, an inner sleeve 22, a lower limit gasket 23, an upper rubber vibration isolation pad 24, a lower rubber vibration isolation pad 25, an upper spring 26 and a lower spring 27.

[0061] The upper limit gasket 21, the inner sleeve 22, and the lower limit gasket 23 are sequentially sleeved on the corresponding one of the first fasteners 12, the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 are sleeved on the inner sleeve 22 and are sleeved and clamped with each other to the corresponding one of the first mounting holes 11, the upper spring 26 is sleeved on the upper rubber vibration isolation pad 24 and its two ends respectively abut against the upper limit gasket 21 and the upper rubber vibration isolation pad 24, the lower spring 27 is sleeved on the lower rubber vibration isolation pad 25 and its two ends respectively abut against the lower rubber vibration isolation pad 25 and the lower limit gasket 23.

[0062] Specifically, when the air pump 4 is subjected to a small downward impact vibration, the upper spring 26 is compressed, thereby playing a buffering role. When the air pump 4 is subjected to a large downward impact, since the upper spring 26 has a small stiffness, it can no longer restrain the air pump 4 from moving downward. At this time, the upper rubber vibration isolation pad 24 contacts the upper limit gasket 21, and the upper rubber vibration isolation pad 24 is compressed, and works together with the upper spring 26 to prevent the air pump 4 from moving further downward. The upper rubber vibration isolation pad 24 contacts the upper limit gasket 21, and also prevents the upper spring 26 from coiling and producing metal impact noise. When the air pump 4 is subjected to an upward impact, the buffering principle is the same as when it is subjected to a downward impact. The lower spring 27 plays a buffering role during small impact vibrations, and the lower rubber vibration isolation pad 25 and the lower spring 27 work together during large impact vibrations.

[0063] In addition, in order to prevent the first fastener 12 (which can be a bolt) from compressing the upper rubber vibration isolation pad 24, the lower rubber vibration isolation pad 25, the upper spring 26 and the lower spring 27 too tightly when being connected to the air pump 4, an inner sleeve 22 is installed inside the upper rubber vibration isolation pad 24, the lower rubber vibration isolation pad 25, the upper spring 26 and the lower spring 27. The inner sleeve 22 will limit the displacement of the first fastener 12 when connected, thereby ensuring that the upper rubber vibration isolation pad 24, the lower rubber vibration isolation pad 25, the upper spring 26 and the lower spring 27 are compressed appropriately.

[0064] As an optional implementation, in an embodiment of the invention, see Figure 5 As shown, one end of the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 are both circumferentially provided with a plurality of first protrusions 241. Specifically, the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 have the same structure, and the plurality of first protrusions 241 make the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 change their stiffness from small to large when they contact the upper limit gasket 21 and the lower limit gasket 23 respectively, which is beneficial to vibration reduction.

[0065] As an optional implementation, in an embodiment of the invention, see Figure 3 As shown, the other ends of the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 are each provided with a semicircular ring sleeve 242, and the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25 have the same structure, and the semicircular ring sleeve 242 facilitates the fitting connection of the upper rubber vibration isolation pad 24 and the lower rubber vibration isolation pad 25.

[0066] As an optional implementation, in an embodiment of the invention, see Figure 2 As shown, the mounting plate 1 is provided with at least one second mounting hole 13, each of the second mounting holes 13 is provided with a second fastener 14, and each of the second-stage vibration isolation components 3 clamps the mounting plate 1 at one of the second mounting holes 13 and is connected to the mounting plate 1 and the vehicle body through a corresponding second fastener 14. Specifically, the mounting plate 1 is provided with four second mounting holes 13 at four corners.

[0067] As an optional implementation, in an embodiment of the invention, see Figure 6 and Figure 7 As shown, each of the second-stage vibration isolation components 3 includes an upper limit sleeve 31 , a lower limit sleeve 32 and a rubber vibration isolation block 33 .

[0068] The upper limit sleeve 31 and the lower limit sleeve 32 are sequentially sleeved on a corresponding second fastener 14 , and the rubber vibration isolation block 33 clamps a corresponding second mounting hole 13 and is sleeved on the upper limit sleeve 31 and the lower limit sleeve 32 .

[0069] Specifically, when the air pump 4 is subjected to downward impact vibration, if it is buffered by the first-stage vibration isolation assembly 2, there is still residual impact transmitted to the mounting plate 1, and the mounting plate 1 is clamped by the rubber vibration isolation block 33. The residual impact is buffered and attenuated again by the rubber vibration isolation block 33, thereby greatly reducing the vibration reaching the vehicle body. Therefore, the vibration generated by the air pump 4 is finally transmitted to the vehicle body after being buffered and attenuated by the first-stage vibration isolation assembly 2 and the second-stage vibration isolation assembly 3. The vibration amount is very small and does not affect the driving experience. In addition, in order to prevent the rubber vibration isolation block 33 from being over-compressed by the second fastener 14, the rubber vibration isolation block 33 can be sleeved on the upper limit sleeve 31 and the lower limit sleeve 32.

[0070] As an optional implementation, in an embodiment of the invention, see Figure 8 As shown, the rubber vibration isolation block 33 includes an upper vibration isolation portion 331 and a lower vibration isolation portion 332 connected to each other, and the upper vibration isolation portion 331 and the lower vibration isolation portion 332 are both in a truncated cone shape. An annular groove 333 is provided between the upper vibration isolation portion 331 and the lower vibration isolation portion 332 to facilitate the installation and clamping of the mounting plate 1.

[0071] As an optional implementation, in an embodiment of the invention, see Figure 8 As shown, a plurality of second protrusions 334 are provided on the upper vibration isolation part 331 and the lower vibration isolation part 332 of the rubber vibration isolation block 33. The plurality of second protrusions 334 make the stiffness of the upper vibration isolation part 331 and the lower vibration isolation part 332 change from small to large when they contact the upper limit sleeve 31 and the lower limit sleeve 32 respectively, which is beneficial to vibration reduction.

[0072] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. 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 an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0073] It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0074] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A vibration isolation device for an air suspension air pump, characterized in that: include: Mounting plate (1); At least one first-stage vibration isolation component (2), each of the first-stage vibration isolation components (2) being connected to the mounting plate (1) and the air pump (4); At least one second-stage vibration isolation assembly (3), each of the second-stage vibration isolation assemblies (3) being connected to the mounting plate (1) and the vehicle body; The mounting plate (1) is provided with at least one first mounting hole (11), each of the first mounting holes (11) is provided with a first fastener (12), and each of the first-stage vibration isolation components (2) clamps the mounting plate (1) at one of the first mounting holes (11) and is connected to the mounting plate (1) and the air pump (4) via a corresponding first fastener (12); Each of the first-stage vibration isolation components (2) comprises: an upper limit gasket (21), an inner sleeve (22), a lower limit gasket (23), an upper rubber vibration isolation pad (24), a lower rubber vibration isolation pad (25), an upper spring (26) and a lower spring (27); The upper limit gasket (21), the inner sleeve (22), and the lower limit gasket (23) are sequentially sleeved on a corresponding first fastener (12); the upper rubber vibration isolation pad (24) and the lower rubber vibration isolation pad (25) are sleeved on the inner sleeve (22) and sleeved and clamped to a corresponding first mounting hole (11); the upper spring (26) is sleeved on the upper rubber vibration isolation pad (24) with its two ends respectively abutting against the upper limit gasket (21) and the upper rubber vibration isolation pad (24); the lower spring (27) is sleeved on the lower rubber vibration isolation pad (25) with its two ends respectively abutting against the lower rubber vibration isolation pad (25) and the lower limit gasket (23); The upper rubber vibration isolation pad (24) and the lower rubber vibration isolation pad (25) have the same structure, and one end of each of the upper rubber vibration isolation pad (24) and the lower rubber vibration isolation pad (25) is provided with a semicircular ring sleeve (242).

2. The vibration isolation device for an air suspension air pump according to claim 1, characterized in that: The other ends of the upper rubber vibration isolation pad (24) and the lower rubber vibration isolation pad (25) are both provided with a plurality of first protrusions (241) in an annular direction.

3. The vibration isolation device for an air suspension air pump according to claim 1, characterized in that: At least one second mounting hole (13) is provided on the mounting plate (1), each second mounting hole (13) is provided with a second fastener (14), and each second-stage vibration isolation assembly (3) clamps the mounting plate (1) at one of the second mounting holes (13) and is connected to the mounting plate (1) and the vehicle body via a corresponding second fastener (14).

4. The vibration isolation device for an air suspension air pump according to claim 3, characterized in that: Each of the second-stage vibration isolation components (3) comprises: an upper limit sleeve (31), a lower limit sleeve (32) and a rubber vibration isolation block (33); The upper limit sleeve (31) and the lower limit sleeve (32) are sequentially sleeved on a corresponding second fastener (14), and the rubber vibration isolation block (33) clamps a corresponding second mounting hole (13) and is sleeved on the upper limit sleeve (31) and the lower limit sleeve (32).

5. The vibration isolation device for an air suspension air pump according to claim 4, characterized in that: The rubber vibration isolation block (33) comprises an upper vibration isolation portion (331) and a lower vibration isolation portion (332) which are connected to each other. The upper vibration isolation portion (331) and the lower vibration isolation portion (332) are both in the shape of a truncated cone. An annular clamping groove (333) is provided between the upper vibration isolation portion (331) and the lower vibration isolation portion (332).

6. The vibration isolation device for an air suspension air pump according to claim 5, characterized in that: A plurality of second protrusions (334) are provided on both the upper vibration isolation portion and the lower vibration isolation portion of the rubber vibration isolation block (33).

7. A car, characterized in that: A vibration isolation device comprising an air suspension air pump as claimed in any one of claims 1 to 6.

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