Air treatment equipment, air suspension and vehicle

Abstract

The utility model discloses air treatment equipment, an air suspension and a vehicle, the air treatment equipment comprises a shell and a driving part, and one end of a crankshaft is provided with an eccentric driving part located in the shell; the connecting rod assembly is movably installed in the shell and comprises a first connecting rod and a second connecting rod, the eccentric driving part is sleeved with a first bearing piece and rotationally supported in the first connecting rod through the first bearing piece, and the first connecting rod and the second connecting rod are rotationally connected through a connecting piece. The crankshaft is suitable for driving the first connecting rod to conduct reciprocating compression on the first compression cavity through the eccentric driving part, and the first connecting rod is suitable for driving the second connecting rod to conduct reciprocating compression on the second compression cavity when moving along with the eccentric driving part. Wherein an elastic structure is arranged in the axial direction and / or the radial direction of the first bearing part. According to the air treatment equipment, the bearing capacity peak value and fluctuation load of the first connecting rod can be reduced, overlarge noise is prevented from being generated, and the air treatment equipment can run more stably and reliably.

Description

Technical Field

[0001] The utility model relates to the technical field of air treatment equipment manufacturing, in particular to an air treatment equipment, an air suspension having the air treatment equipment, and a vehicle having the air treatment equipment or the air suspension. Background Art

[0002] Air treatment equipment is used in all types of vehicles to supply compressed air to air springs. The air springs can also include a level adjustment device, by which the distance between the chassis and the vehicle body can be set. The air springs of a pneumatic compressed air supply system include a number of air bags pneumatically connected to a common line (passage), which lift the vehicle body as the filling increases and lower the vehicle body correspondingly as the filling decreases. Such systems are preferably increasingly used in off-road vehicles and sport utility vehicles (SUVs) or commercial or passenger transport vehicles.

[0003] The pneumatic components used in a pneumatic compressed air supply system, such as an air treatment equipment having the above-mentioned air springs, operate with compressed air from a compressed air delivery section in a pressure level range of, for example, 5 bar to 20 bar. With the air treatment equipment, a reciprocating connecting rod machine is used herein, preferably a two-stage or multi-stage connecting rod type air treatment equipment, to make the compressed air available for the compressed air delivery section.

[0004] However, in the air treatment equipment in the prior art, the peak bearing capacity and the fluctuating load of the connecting rod mechanism are relatively large, transmitting relatively high structural noise to the outside, which will cause an increase in material load and thus premature damage, and there is still room for improvement. Summary of the Utility Model

[0005] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an air treatment equipment, which can reduce the peak bearing capacity and the fluctuating load of the first connecting rod, prevent excessive noise from being generated, make the air treatment equipment operate more smoothly and reliably, reduce the damage risk of the connecting rod assembly caused by drastic changes in load, avoid impact damage to the air treatment equipment caused by excessive fluctuations, thereby improving the service life of the connecting rod assembly and the air treatment equipment, and reducing the structural noise transmitted to the outside, thus enhancing the use experience.

[0006] An air treatment device according to an embodiment of the present utility model includes: a housing and a driving component, the driving component includes a crankshaft, and an eccentric driving portion located inside the housing is provided at one end of the crankshaft; a connecting rod assembly, the connecting rod assembly is movably installed inside the housing and includes a first connecting rod and a second connecting rod, the first connecting rod and the housing define a first compression chamber, the second connecting rod and the housing define a second compression chamber, a first bearing member is sleeved outside the eccentric driving portion and is rotationally supported inside the first connecting rod through the first bearing member, the first connecting rod and the second connecting rod are rotatably connected through a connecting member, a second bearing member is sleeved outside the connecting member, the crankshaft is adapted to drive the first connecting rod to reciprocally compress the first compression chamber through the eccentric driving portion, and the first connecting rod is adapted to drive the second connecting rod to reciprocally compress the second compression chamber when moving along with the eccentric driving portion; wherein, an elastic structure is provided axially and / or radially on the first bearing member.

[0007] For the air treatment device according to an embodiment of the present utility model, by providing an elastic structure axially and / or radially on the first bearing member, the elastic structure can absorb the generated vibration and impact for buffering, thereby reducing the peak value of the bearing capacity and the fluctuating load of the first connecting rod, preventing excessive noise from being generated, enabling the air treatment device to operate more smoothly and reliably, reducing the risk of damage to the connecting rod assembly caused by drastic changes in the load, avoiding impact damage to the air treatment device caused by excessive fluctuations, thereby improving the service life of the connecting rod assembly and the air treatment device, and reducing the structural noise transmitted to the outside, enhancing the user experience.

[0008] For the air treatment device according to some embodiments of the present utility model, the first connecting rod forms a first bearing hole for accommodating the first bearing member, the first bearing member includes a first inner ring portion, a first outer ring portion and a first rolling member located between the first inner ring portion and the first outer ring portion, and the elastic structure is provided between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole and / or at the axial end of the first outer ring portion.

[0009] For the air treatment device according to some embodiments of the present utility model, the elastic structure is configured as an elastic element, and the elastic element is integrally connected to the first outer ring portion and / or the first connecting rod.

[0010] For the air treatment device according to some embodiments of the present utility model, the integral connection mode of the elastic element adopts one or more of gluing, casting, injection molding and vulcanization.

[0011] An air treatment device according to some embodiments of the present utility model, wherein the elastic element is located between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole; or, the elastic element includes a radial elastic portion and an axial elastic portion, the radial elastic portion and the axial elastic portion are bent and connected, the radial elastic portion is located between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole, and the axial elastic portion is located at the axial end of the first outer ring portion.

[0012] An air treatment device according to some embodiments of the present utility model, wherein the elastic structure is an elastic assembly and is installed at the mating portion of the first outer ring portion and the first connecting rod.

[0013] An air treatment device according to some embodiments of the present utility model, wherein the elastic assembly includes an inner ring mounting member, an intermediate elastic member, and an outer ring mounting member, the outer ring mounting member is sleeved outside the inner ring mounting member, and the intermediate elastic member is located between the outer ring mounting member and the inner ring mounting member.

[0014] An air treatment device according to some embodiments of the present utility model, wherein the inner ring mounting member, the intermediate elastic member, and the outer ring mounting member are sequentially distributed radially from the inside to the outside between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole; or, the outer ring mounting member includes an axial mounting portion and a radial mounting portion, the inner ring mounting member, the intermediate elastic member, and the radial mounting portion are sequentially distributed radially from the inside to the outside between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole, and the axial mounting portion is located at the axial end of the first outer ring portion.

[0015] An air treatment device according to some embodiments of the present utility model, wherein one of the inner ring mounting member and the intermediate elastic member is provided with a first positioning portion and the other is provided with a first mating portion, and the first positioning portion and the first mating portion are inserted and positioned along the radial direction of the first bearing member; and / or, one of the outer ring mounting member and the intermediate elastic member is provided with a second positioning portion and the other is provided with a second mating portion, and the second positioning portion and the second mating portion are inserted and positioned along the radial direction of the first bearing member.

[0016] An air treatment device according to some embodiments of the present utility model, wherein the first connecting rod forms a second bearing hole for accommodating the second bearing member, the second bearing member includes a second inner ring portion, a second outer ring portion, and a second rolling member located between the second inner ring portion and the second outer ring portion, the connecting member is press-fitted through the second inner ring portion, and the second outer ring portion is fixedly connected to the inner peripheral wall of the second bearing hole.

[0017] An air treatment device according to some embodiments of the present utility model, the housing is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet, the first air inlet and the first air outlet are respectively communicated with the first compression chamber, the second air inlet and the second air outlet are respectively communicated with the second compression chamber, and the first air outlet and the second air inlet are communicated through an intermediate pipeline.

[0018] The present utility model also proposes an air suspension.

[0019] An air suspension according to an embodiment of the present utility model is provided with the air treatment device described in any one of the above, and the gas chamber of the air spring is selectively communicated with the second compression chamber.

[0020] The present utility model also proposes a vehicle.

[0021] A vehicle according to an embodiment of the present utility model is provided with the air treatment device or the air suspension described in any one of the above.

[0022] The advantages of the above air suspension and vehicle over the prior art are the same and will not be elaborated here.

[0023] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0024] The above and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0025] Figure 1 is a schematic structural diagram of an air treatment device according to an embodiment of the present utility model;

[0026] Figure 2 is Figure 1 the first cross-sectional view at A-A in

[0027] Figure 3 is Figure 1 the second cross-sectional view at A-A in

[0028] Figure 4 is Figure 1 the third cross-sectional view at A-A in

[0029] Figure 5 is Figure 1 the fourth cross-sectional view at A-A in

[0030] Figure 6 is Figure 2 an enlarged view of position B in

[0031] Figure 7 is Figure 4 an enlarged view of position C in

[0032] Reference numerals:

[0033] an air handling device 100,

[0034] a housing 1, a crankshaft 21, an eccentric drive part 211, a first compression chamber 11, a second compression chamber 12,

[0035] a connecting rod assembly 3, a first connecting rod 31, a first bearing hole 311, a first bearing member 3111, a first inner ring part 3112, a first outer ring part 3113, a first rolling member 3114, a second connecting rod 32, a second bearing hole 321, a second bearing member 3211, a connecting member 33,

[0036] an elastic element 4, a radial elastic part 41, an axial elastic part 42,

[0037] an elastic assembly 5, an inner ring mounting member 51, an intermediate elastic member 52, an outer ring mounting member 53, an axial mounting part 531, a radial mounting part 532. Detailed implementation manners

[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the features defined with "first", "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0040] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Reference is made below to Figures 1-7 describe an air handling device 100 according to an embodiment of the present utility model. The air handling device 100 can reduce the peak bearing capacity and fluctuating load of the first link 31, prevent excessive noise from being generated, enable the air handling device 100 to operate more smoothly and reliably, reduce the risk of damage to the link assembly 3 caused by drastic changes in load, avoid impact damage to the air handling device 100 caused by excessive fluctuations, thereby improving the service life of the link assembly 3 and the air handling device 100, and reducing the structural noise transmitted to the outside, improving the user experience.

[0042] As Figures 1-7 shown, an air handling device 100 according to an embodiment of the present utility model includes: a housing 1, a driving component, and a link assembly 3.

[0043] The interior of the housing 1 is hollow to form a receiving cavity for receiving and protecting internal components. The link assembly 3 is installed inside the housing 1, that is, the housing 1 can support and protect the link assembly 3 to maintain the stability of the air handling device 100. The driving component is used to provide power to enable the air handling device 100 to operate normally. Among them, the driving component includes a crankshaft 21, and an eccentric driving portion 211 located inside the housing 1 is provided at one end of the crankshaft 21. That is, the driving component realizes power transmission through the rotation of the crankshaft 21. In practice, the other end of the crankshaft 21 can be connected to components such as a driving motor and a driving motor, and the power of the driving motor or the driving motor is transmitted to the crankshaft 21 to drive the crankshaft 21 to rotate, so that its eccentric driving portion 211 can perform an eccentric rotational motion around the eccentric shaft.

[0044] The connecting rod assembly 3 is movably mounted within the housing 1 and includes a first connecting rod 31 and a second connecting rod 32. That is, the first connecting rod 31 and the second connecting rod 32 are mounted within the housing 1 and can move within the housing 1. The first connecting rod 31 and the housing 1 define a first compression chamber 11. That is, the volume of the first compression chamber 11 can change with the movement of the first connecting rod 31, so that the gas within the first compression chamber 11 can be compressed with the movement of the first connecting rod 31. The second connecting rod 32 and the housing 1 define a second compression chamber 12. That is, the volume of the second compression chamber 12 can change with the movement of the second connecting rod 32, so that the gas within the second compression chamber 12 can be compressed with the movement of the second connecting rod 32. A first bearing member 3111 is sleeved outside the eccentric drive portion 211 and is rotatably supported within the first connecting rod 31 through the first bearing member 3111. The first connecting rod 31 and the second connecting rod 32 are rotatably connected through a connecting member 33. A second bearing member 3211 is sleeved outside the connecting member 33. That is, the eccentric drive portion 211 can drive the first connecting rod 31 to perform a reciprocating linear motion. The movement of the first connecting rod 31 can rotatably drive the movement of the second connecting rod 32. The crankshaft 21 is adapted to drive the first connecting rod 31 to reciprocally compress the first compression chamber 11 through the eccentric drive portion 211, and the first connecting rod 31 is adapted to drive the second connecting rod 32 to reciprocally compress the second compression chamber 12 when moving with the eccentric drive portion 211.

[0045] Specifically, in practice, when the crankshaft 21 rotates to drive the rotation of its eccentric drive portion 211, the eccentric drive portion 211 drives the first connecting rod 31 to perform a reciprocating linear motion through the first bearing member 3111, so that the volume of the first compression chamber 11 changes periodically, realizing the reciprocating compression of the gas within the first compression chamber 11. When the first connecting rod 31 rotates, it drives the connected second connecting rod 32 to rotate and perform a reciprocating linear motion, so that the volume of the second compression chamber 12 changes periodically, realizing the reciprocating compression of the gas within the second compression chamber 12.

[0046] Thus, through the continuous rotation of the crankshaft 21, the first connecting rod 31 and the second connecting rod 32 can continuously perform reciprocating motions, thereby realizing the continuous compression of the gas by the two compression chambers and being able to continuously compress the low-pressure gas into high-pressure gas.

[0047] Wherein, an elastic structure is provided axially and / or radially on the first bearing member 3111.

[0048] That is to say, the elastic structure can be arranged along the axial direction or the radial direction of the first bearing member 3111, or can be arranged in both directions simultaneously. By arranging the elastic structure on the first bearing member 3111, the elastic structure can be pressed between the first bearing member 3111 and the first connecting rod 31 to generate a damping effect. When the first connecting rod 31 moves, the generated vibration and impact can be absorbed for buffering. Since the first bearing member 3111 bears the load transfer from the crankshaft 21, the elastic structure thereon can buffer, thereby reducing the peak value of the bearing capacity and the fluctuating load of the first connecting rod 31 and the connecting rod assembly 3, that is, the first connecting rod 31 and the connecting rod assembly 3 will not bear higher loads and will not generate too large load fluctuations, thereby preventing excessive noise from being generated, enabling the air handling device 100 to operate more smoothly and reliably, reducing the damage risk of the connecting rod assembly 3 caused by drastic load changes, and avoiding impact damage to the air handling device 100 due to excessive fluctuations, thereby improving the service life of the connecting rod assembly 3 and the air handling device 100, and reducing the structure noise transmitted to the outside world, enhancing the use experience. In addition, setting the elastic structure can prevent axial or radial displacement and offset of the first bearing member 3111 or the first connecting rod 31, compensate for certain dimensional deviations, enable the first bearing member 3111 and the first connecting rod 31 to be stably and smoothly rotationally connected, and the elastic structure has elasticity, which can reduce the friction and wear between the two, make the rotation more flexible, and reduce noise.

[0049] According to the air handling device 100 of the embodiment of the present invention, by arranging the elastic structure in the axial direction and / or the radial direction of the first bearing member 3111, the elastic structure can absorb the generated vibration and impact for buffering, thereby reducing the peak value of the bearing capacity and the fluctuating load of the first connecting rod 31, preventing excessive noise from being generated, enabling the air handling device 100 to operate more smoothly and reliably, reducing the damage risk of the connecting rod assembly 3 caused by drastic load changes, and avoiding impact damage to the air handling device 100 due to excessive fluctuations, thereby improving the service life of the connecting rod assembly 3 and the air handling device 100, and reducing the structure noise transmitted to the outside world, enhancing the use experience.

[0050] In some embodiments, the first connecting rod 31 is formed with a first bearing hole 311 for accommodating the first bearing member 3111. The first bearing member 3111 includes a first inner ring portion 3112, a first outer ring portion 3113, and a first rolling member 3114 located between the first inner ring portion 3112 and the first outer ring portion 3113. An elastic structure is provided between the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311 and / or at the axial end of the first outer ring portion 3113.

[0051] That is to say, the first bearing member 3111 is installed in the first bearing hole 311. The first inner ring portion 3112 and the first outer ring portion 3113 rotate relative to each other through the first rolling elements 3114, reducing friction. In practice, the driving eccentric portion 211 can pass through the first bearing hole 311 and is rotatably supported in the first connecting rod 31 by the first bearing member 3111, realizing the relative rotation between the two, enabling the crankshaft 21 to drive the first connecting rod 31 to move. The first bearing member 3111 can be configured as a rolling bearing or a ball bearing, etc.

[0052] Moreover, an elastic structure can be arranged between the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311, that is, the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311 can be connected through the elastic structure, so that the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311 can be tightly connected. The elastic structure absorbs vibration and shock, can prevent noise generated by the relative movement between the first bearing member 3111 and the first connecting rod 31, wear caused by direct contact, etc., reduces the transmission load of the first connecting rod 31, and at the same time can reduce the axial offset between the first bearing member 3111 and the first connecting rod 31, ensuring that the bearing member remains in an appropriate position during operation. And because the temperature will rise during the movement process, the elastic structure allows a certain degree of adaptability between the first bearing member 3111 and the first connecting rod 31, can adapt to thermal expansion, vibration, etc., and improves its service life.

[0053] And / or an elastic structure can also be arranged at the axial end of the first outer ring portion 3113 to achieve the same effect.

[0054] In some embodiments, the elastic structure is configured as an elastic element 4, and the elastic element 4 is integrally connected to the first outer ring portion 3113 and / or the first connecting rod 31.

[0055] Specifically, the elastic structure can be configured as an elastic element 4 with elastic force. The elastic element 4 can be integrally connected to the first outer ring portion 3113, or can be integrally connected to the first connecting rod 31, that is, the elastic element 4 can be connected to the first outer ring portion 3113 or the first connecting rod 31 as a whole structure. This setting can make the connection between the elastic element 4 and the first outer ring portion 3113 or the first connecting rod 31 firm, so that the elastic element 4 will not easily shift or fail, thereby improving the connection stability and reliability between the elastic element 4 and the first outer ring portion 3113 and / or the first connecting rod 31, enabling the elastic element 4 to better play a damping role, absorb energy and reduce vibration for buffering, reduce the generation of noise, and the integral connection can reduce the number of parts, reduce the assembly steps and cost, is flexible and convenient, and greatly improves the assembly efficiency.

[0056] In some embodiments, the integral connection method of the elastic element 4 adopts one or more of gluing, casting, injection molding, and vulcanization.

[0057] Specifically, the elastic element 4 can be adhesively connected to the first outer ring portion 3113 or the first connecting rod 31 using an adhesive. Through its adhesive force, the two can be closely connected. In actual design, a liquid, paste, or film adhesive can be used. Moreover, the adhesive method can quickly and simply connect the elastic element 4 to the first outer ring portion 3113 or the first connecting rod 31, and the connection part has good sealing performance and is not easily separated.

[0058] The elastic element 4 can also be connected to the first outer ring portion 3113 or the first connecting rod 31 by casting. Using the casting method can ensure that the elastic element 4 has precise shape and dimensions, and at the same time can achieve a tight connection with the first outer ring portion 3113 or the first connecting rod 31.

[0059] The elastic element 4 can also be connected to the first outer ring portion 3113 or the first connecting rod 31 by injection molding. Using the injection molding method can ensure that the elastic element 4 has high precision and high efficiency, and can be used for elastic elements 4 with complex shapes.

[0060] The elastic element 4 can also be connected to the first outer ring portion 3113 or the first connecting rod 31 by vulcanization. Using the vulcanization method can ensure that the elastic element 4 has excellent elasticity, wear resistance, heat resistance, and aging resistance, etc., so as to improve the mechanical properties and service life of the elastic element 4, enabling the elastic element 4 to withstand greater tension and compression, better realizing the buffering and vibration damping effect, and further facilitating better reduction of the transmission load from the crankshaft 21 and reducing the generation of noise.

[0061] Thus, the elastic element 4 can be connected to the first outer ring portion 3113 or the first connecting rod 31 as an integral structure by one or more of adhesive bonding, casting, injection molding, and vulcanization, which can improve the connection tightness, reliability, and stability between the elastic element 4 and the first outer ring portion 3113 or the first connecting rod 31, thereby improving the damping effect, facilitating better reduction of the load transmitted from the crankshaft 21, and reducing the generation of noise.

[0062] In some embodiments, the elastic element 4 is located between the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311.

[0063] Specifically, in practice, as Figure 2 shown, the elastic element 4 can be constructed as a ring and sleeved outside the first outer ring portion 3113, so as to be pressed and connected between the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311. Among them, the axial extension length of the elastic element 4 can be the same as the axial extension length of the first outer ring portion 3113, so that the elastic element 4 can support at the axial position where the first outer ring portion 3113 is connected to the first bearing hole 311. When the first connecting rod 31 moves, it is conducive to better deformation for buffering and vibration damping.

[0064] Alternatively, the elastic element 4 includes a radially elastic portion 41 and an axially elastic portion 42. The radially elastic portion 41 is bent and connected to the axially elastic portion 42. The radially elastic portion 41 is located between the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311, and the axially elastic portion 42 is located at the axial end of the first outer ring portion 3113.

[0065] Specifically, as Figure 3 shown, the elastic element 4 includes a radially elastic portion 41 and an axially elastic portion 42. The radially elastic portion 41 extends axially along the first outer ring portion 3113, is configured as a ring, and is installed between the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311 to provide radial support, buffering, and vibration damping. Among them, the radially elastic portion 41 is located at one end close to the end face of the eccentric drive portion 211, and it protrudes inward a certain distance in the radial direction to form the axially elastic portion 42, which is installed at the axial end of the first outer ring portion 3113 to provide axial support, buffering, and vibration damping. Thus, the radially elastic portion 41 and the axially elastic portion 42 are bent and connected as a whole, and at the same time provide support and buffering in the radial and axial directions, which can increase the damping effect, further reduce the load transmitted from the crankshaft 21, making the air handling device 100 more stable and reliable, and the axially elastic portion 42 is in pressing connection with the inner peripheral wall of the first bearing hole 311, which can not only buffer and damp vibration, but also prevent the axial movement of the first bearing member 3111.

[0066] In some embodiments, the elastic structure is an elastic assembly 5, and is installed at the mating portion of the first outer ring portion 3113 and the first connecting rod 31.

[0067] That is, the elastic structure can be composed of multiple parts, and can be assembled, disassembled, and separated. Some of them can be set as elastic members to achieve the damping effect, and the elastic assembly 5 is assembled at the mating portion of the first outer ring portion 3113 and the first connecting rod 31. In this way, when a certain part is damaged or fails and needs to be replaced, it is convenient to disassemble and separate it for replacement and repair, without having to replace the entire elastic structure, which reduces the cost and is flexible and convenient.

[0068] In some embodiments, the elastic assembly 5 includes an inner ring mounting member 51, an intermediate elastic member 52, and an outer ring mounting member 53. The outer ring mounting member 53 is sleeved outside the inner ring mounting member 51, and the intermediate elastic member 52 is located between the outer ring mounting member 53 and the inner ring mounting member 51.

[0069] That is, the elastic assembly 5 can be configured as a ring, and the intermediate elastic member 52 is installed between the inner ring mounting member 51 and the outer ring mounting member 53. Thus, the inner ring mounting member 51 and the outer ring mounting member 53 can protect the intermediate elastic member 52 from being damaged and affecting the buffering and vibration damping effect, and it is also beneficial to replace it.

[0070] In some embodiments, the inner ring mounting member 51, the intermediate elastic member 52, and the outer ring mounting member 53 are sequentially distributed radially from the inside out between the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311.

[0071] Specifically, as Figure 4 and Figure 7 shown, the inner ring mounting member 51 is sleeved on the outer periphery of the first outer ring portion 3113, that is, the inner peripheral wall of the inner ring mounting member 51 is connected to the outer peripheral wall of the first outer ring portion 3113. The intermediate elastic member 52 is sleeved on the outer periphery of the inner ring mounting member 51, that is, the inner peripheral wall of the intermediate elastic member 52 is connected to the outer peripheral wall of the inner ring mounting member 51. The outer ring mounting member 53 is sleeved on the outer periphery of the intermediate elastic member 52, that is, the outer peripheral wall of the intermediate elastic member 52 is connected to the inner peripheral wall of the outer ring mounting member 53. The outer peripheral wall of the outer ring mounting member 53 is connected to the inner peripheral wall of the first bearing hole 311, so that the inner ring mounting member 51, the intermediate elastic member 52, and the outer ring mounting member 53 are sequentially distributed radially from the inside out, realizing radial support and buffering. When the intermediate elastic member 52 is impacted, it can buffer and dampen vibrations.

[0072] Alternatively, the outer ring mounting member 53 includes an axial mounting portion 531 and a radial mounting portion 532. The inner ring mounting member 51, the intermediate elastic member 52, and the radial mounting portion 532 are sequentially distributed radially from the inside out between the outer peripheral wall of the first outer ring portion 3113 and the inner peripheral wall of the first bearing hole 311, and the axial mounting portion 531 is located at the axial end of the first outer ring portion 3113.

[0073] Specifically, as Figure 5 shown, the outer ring mounting member 53 includes an axial mounting portion 531 and a radial mounting portion 532. The radial mounting portion 532 extends axially. The inner peripheral wall of the radial mounting portion 532 is connected to the outer peripheral wall of the intermediate elastic member 52. The outer peripheral wall of the radial mounting portion 532 is connected to the inner peripheral wall of the first bearing hole 311. The axial end of the radial mounting portion 532 protrudes radially to form the axial mounting portion 531. The axial mounting portion 531 can protect the end face of the intermediate elastic member 52, which is beneficial for buffering and vibration damping. At the same time, it can enhance the tight connection effect of the elastic assembly 5 and prevent the intermediate elastic member 52 from axially disengaging during movement.

[0074] In some embodiments, one of the inner ring mounting member 51 and the intermediate elastic member 52 is provided with a first positioning portion and the other is provided with a first mating portion. The first positioning portion and the first mating portion are inserted and positioned along the radial direction of the first bearing member 3111.

[0075] Specifically, a first positioning portion can be provided on the inner ring mounting member 51, and a first mating portion can be provided on the intermediate elastic member 52. Alternatively, a first positioning portion can be provided on the intermediate elastic member 52, and a first mating portion can be provided on the inner ring mounting member 51. The first positioning portion and the first mating portion are adapted to each other, so that the first positioning portion and the first mating portion can be inserted and positioned along the radial direction of the first bearing member 3111, thereby realizing the mounting fit between the inner ring mounting member 51 and the intermediate elastic member 52. Through the insertion and positioning installation, not only the installation difficulty is reduced, but also the precise positioning and installation fixation between the inner ring mounting member 51 and the intermediate elastic member 52 can be ensured, preventing the intermediate elastic member 52 from loosening, misaligning, etc., thereby improving the reliability and stability of the elastic assembly 5.

[0076] In actual design, the first positioning portion and the first mating portion can be set as insertion grooves, insertion protrusions, etc.

[0077] And / or, one of the outer ring mounting member 53 and the intermediate elastic member 52 is provided with a second positioning portion and the other is provided with a second mating portion, and the second positioning portion and the second mating portion are inserted and positioned along the radial direction of the first bearing member 3111.

[0078] Specifically, a second positioning portion can be provided on the outer ring mounting member 53, and a second mating portion can be provided on the intermediate elastic member 52. Alternatively, a second positioning portion can be provided on the intermediate elastic member 52, and a second mating portion can be provided on the outer ring mounting member 53. The second positioning portion and the second mating portion are adapted to each other, so that the second positioning portion and the second mating portion can be inserted and positioned along the radial direction of the first bearing member 3111, thereby realizing the mounting fit between the outer ring mounting member 53 and the intermediate elastic member 52. Through the insertion and positioning installation, not only the installation difficulty is reduced, but also the precise positioning and installation fixation between the outer ring mounting member 53 and the intermediate elastic member 52 can be ensured, preventing the intermediate elastic member 52 from loosening, misaligning, etc., thereby further improving the reliability and stability of the elastic assembly 5.

[0079] In some embodiments, the first connecting rod 31 is formed with a second bearing hole 321 for accommodating the second bearing member 3211. The second bearing member 3211 includes a second inner ring portion, a second outer ring portion, and a second rolling member located between the second inner ring portion and the second outer ring portion. The connecting member 33 is press-fitted through the second inner ring portion, and the second outer ring portion is fixedly connected to the inner peripheral wall of the second bearing hole 321.

[0080] That is to say, the second bearing member 3211 is installed in the second bearing hole 321. The second inner ring portion and the second outer ring portion rotate relative to each other through the second rolling member 3213 to reduce friction. The connecting member 33 is press-fitted through the second inner ring portion, so that the connecting member 33 is rotatably supported in the first connecting rod 31 through the second bearing member 3211, realizing the relative rotation between the two.

[0081] In practice, such asFigures 2-5 As shown, the connecting member 33 is connected to the second connecting rod 32. Thus, when the first connecting rod 31 moves, the second connecting rod 32 is driven to move by the rotation of the connecting member 33, realizing the compression of the gas. The connecting member 33 can be selected as a pin shaft or the like, and the second bearing member 3211 can be configured as a needle bearing, a ball bearing or the like.

[0082] Therefore, the second bearing member 3211 can also bear a part of the load transmitted from the eccentric drive part 211 of the crankshaft 21, that is, the first bearing member 3111 and the second bearing member 3211 can jointly bear the load transmitted from the eccentric drive part 211 of the crankshaft, avoiding the first connecting rod 31 or the second connecting rod 32 from bearing too large a load alone and generating too large a load fluctuation, thereby further improving the stability and reliability of the connecting rod assembly 3, making the air handling device 100 move more smoothly and reliably, and preventing excessive noise from being generated.

[0083] In some embodiments, the housing 1 is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet. The first air inlet and the first air outlet are respectively communicated with the first compression chamber 11, the second air inlet and the second air outlet are respectively communicated with the second compression chamber 12, and the first air outlet and the second air inlet are communicated through an intermediate pipeline.

[0084] Specifically, the gas can enter the first compression chamber 11 from the first air inlet and be compressed. The compressed gas can be discharged from the first air outlet and enter the intermediate pipeline. After passing through the intermediate pipeline, it enters the second compression chamber 12 from the second air inlet and is compressed again. The compressed gas can be discharged from the second air outlet. Thus, the continuous compression of the gas is realized, and finally the required high-temperature and high-pressure gas is obtained, improving the gas compression efficiency.

[0085] The present utility model also proposes an air suspension.

[0086] According to the air suspension of the embodiment of the present utility model, the air handling device 100 of any of the above embodiments is provided, and the gas chamber of the air spring is selectively communicated with the second compression chamber 12, that is, the gas compressed in the second compression chamber 12 can selectively enter the gas chamber of the air spring, thereby controlling the air pressure in the gas chamber of the air spring, realizing the inflation and deflation of the air spring, and thus adjusting the height of the air suspension.

[0087] Specifically, the air suspension is an automotive suspension system that generates and adjusts air pressure by the air handling device 100, thereby controlling the inflation and deflation of the air spring, and further adjusting the body height and the softness and hardness of the suspension. When the gas chamber of the air spring is communicated with the second compression chamber 12, the gas compressed in the second compression chamber 12 can enter the gas chamber of the air spring, increasing the air pressure of the air spring to improve its hardness and bearing capacity, thereby improving the stability of the vehicle body, reducing bumps, and enhancing the riding comfort.

[0088] In actual design, the gas chamber of the air spring and the second compression chamber 12 can be selectively communicated by opening and closing a solenoid valve or other control elements.

[0089] According to the air suspension of the embodiment of the present invention, by selectively communicating the gas chamber of the air spring with the second compression chamber 12, the state of the air spring can be controlled in real time. By arranging an elastic structure in the air treatment device 100, excessive noise can be prevented, the damage risk of the connecting rod assembly 3 caused by drastic changes in load can be reduced, the impact damage to the air treatment device 100 caused by excessive fluctuations can be avoided, the movement of the air treatment device 100 can be made more stable and reliable, and thus the reliability and stability of the air suspension can be improved.

[0090] The present invention also proposes a vehicle.

[0091] According to the vehicle of the embodiment of the present invention, the air treatment device 100 or the air suspension of any of the above embodiments is provided. Among them, by arranging an elastic structure axially and / or radially on the first bearing member 3111, the elastic structure can absorb the generated vibration and impact for buffering, thereby reducing the peak value of the bearing capacity and the fluctuating load of the first connecting rod 31, preventing excessive noise from being generated, making the operation of the air treatment device 100 more stable and reliable, reducing the damage risk of the connecting rod assembly 3 caused by drastic changes in load, and avoiding impact damage to the air treatment device 100 caused by excessive fluctuations, thereby enhancing the service life of the connecting rod assembly 3 and the air treatment device 100, and reducing the structural noise transmitted to the outside, improving the use experience.

[0092] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0093] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air treatment device, characterized in that, Comprising: A housing and a driving component, the driving component includes a crankshaft, and an eccentric driving portion located inside the housing is provided at one end of the crankshaft; A connecting rod assembly, the connecting rod assembly is movably installed inside the housing and includes a first connecting rod and a second connecting rod. The first connecting rod and the housing define a first compression chamber, and the second connecting rod and the housing define a second compression chamber. A first bearing member is sleeved outside the eccentric driving portion and is rotatably supported inside the first connecting rod through the first bearing member. The first connecting rod and the second connecting rod are rotatably connected through a connecting member, and a second bearing member is sleeved outside the connecting member. The crankshaft is adapted to drive the first connecting rod to reciprocally compress the first compression chamber through the eccentric driving portion, and the first connecting rod is adapted to drive the second connecting rod to reciprocally compress the second compression chamber when moving along with the eccentric driving portion; Wherein, an elastic structure is provided axially and / or radially on the first bearing member.

2. The air treatment device according to claim 1, characterized in that, The first connecting rod is formed with a first bearing hole for accommodating the first bearing member. The first bearing member includes a first inner ring portion, a first outer ring portion, and a first rolling member located between the first inner ring portion and the first outer ring portion. The elastic structure is provided between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole and / or at the axial end of the first outer ring portion.

3. The air treatment device according to claim 2, characterized in that, The elastic structure is configured as an elastic element, and the elastic element is integrally connected to the first outer ring portion and / or the first connecting rod.

4. The air treatment device according to claim 3, characterized in that, The integral connection mode of the elastic element adopts one or more of gluing, casting, injection molding, and vulcanization.

5. The air treatment device according to claim 3, characterized in that, The elastic element is located between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole; Or, the elastic element includes a radial elastic portion and an axial elastic portion, the radial elastic portion and the axial elastic portion are bent and connected, the radial elastic portion is located between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole, and the axial elastic portion is located at the axial end of the first outer ring portion.

6. The air handling device according to claim 2, wherein The elastic structure is an elastic assembly and is installed at the mating portion of the first outer ring portion and the first connecting rod.

7. The air treatment device according to claim 6, characterized in that, The elastic assembly includes an inner ring mounting member, an intermediate elastic member, and an outer ring mounting member. The outer ring mounting member is sleeved outside the inner ring mounting member, and the intermediate elastic member is located between the outer ring mounting member and the inner ring mounting member.

8. The air handling device according to claim 7, characterized in that, The inner ring mounting member, the intermediate elastic member, and the outer ring mounting member are sequentially distributed radially from the inside to the outside between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole; Or, the outer ring mounting member includes an axial mounting portion and a radial mounting portion. The inner ring mounting member, the intermediate elastic member, and the radial mounting portion are sequentially distributed radially from the inside to the outside between the outer peripheral wall of the first outer ring portion and the inner peripheral wall of the first bearing hole, and the axial mounting portion is located at the axial end of the first outer ring portion.

9. The air treatment device according to claim 7, characterized in that, One of the inner ring mounting member and the intermediate elastic member is provided with a first positioning portion and the other is provided with a first mating portion, and the first positioning portion and the first mating portion are inserted and positioned along the radial direction of the first bearing member; And / or, one of the outer ring mounting member and the intermediate elastic member is provided with a second positioning portion and the other is provided with a second mating portion, and the second positioning portion and the second mating portion are inserted and positioned along the radial direction of the first bearing member.

10. The air treatment device according to claim 1, characterized in that, The first connecting rod is formed with a second bearing hole for accommodating the second bearing member. The second bearing member includes a second inner ring portion, a second outer ring portion, and second rolling elements located between the second inner ring portion and the second outer ring portion. The connecting member is press-fitted through the second inner ring portion, and the second outer ring portion is fixedly connected to the inner peripheral wall of the second bearing hole.

11. The air treatment device according to claim 1, characterized in that, The housing is provided with a first air inlet, a first air outlet, a second air inlet, and a second air outlet. The first air inlet and the first air outlet are respectively communicated with the first compression chamber. The second air inlet and the second air outlet are respectively communicated with the second compression chamber, and the first air outlet and the second air inlet are communicated through an intermediate pipeline.

12. An air suspension, characterized in that, It includes an air spring and the air treatment device according to any one of claims 1-11, and the gas chamber of the air spring is selectively communicated with the second compression chamber.

13. A vehicle, characterized in that, The air treatment device according to any one of claims 1-11 or the air suspension according to claim 12 is provided.

Images