Rocker arm assembly, air compressor, engine and vehicle

Abstract

The utility model discloses a rocker arm assembly, an air compressor, an engine and a vehicle, the rocker arm assembly comprises a rocker arm, a bushing and a sealing part, a rocker arm shaft is arranged at the first end of the rocker arm, the rocker arm shaft is sleeved with the bushing, a sealing groove is formed in the inner circumferential wall of the bushing, the sealing part abuts against the inner wall of the rocker arm shaft, and at least part of the sealing part is located in the sealing groove. Therefore, the sealing groove is formed in the lining, and the sealing piece is arranged in the sealing groove, so that the waterproof effect is achieved, meanwhile, the cylinder structure of the rocker arm shaft is not changed, and the good structural strength of the rocker arm shaft is kept. Therefore, when the rocker arm assembly is used as an action mechanism or a stress transmission mechanism, the rocker arm shaft in the rocker arm assembly can effectively transmit and bear various stresses and loads, so that a good sealing effect is achieved between the rocker arm shaft and the lining, it can be ensured that the rocker arm assembly is not prone to damage, good reliability is achieved, and the service life of the rocker arm assembly is prolonged. Therefore, the service life of the air compressor is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of air compressors, and in particular to a rocker arm assembly, an air compressor, an engine, and a vehicle. Background Art

[0002] In the prior art, to prevent water leakage from the rocker arm assembly during compressor operation, a seal is typically installed in the rocker arm assembly to waterproof any gaps within the rocker arm assembly, such as the gap between the rocker arm shaft and the bushing surrounding the rocker arm shaft. However, the addition of a sealing ring alters the rocker arm assembly's structure, resulting in a weaker structural strength than before the seal, increasing the risk of damage and ultimately impacting the compressor's service life. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a rocker arm assembly, an air compressor, an engine, and a vehicle, wherein the rocker arm assembly is provided with a sealing member for waterproofing, has good structural strength, and is not easily damaged.

[0004] In the first aspect, an embodiment of the present application proposes a rocker arm assembly, including a rocker arm, a bushing and a seal. A rocker arm shaft is provided at the first end of the rocker arm, the bushing is sleeved on the rocker arm shaft, and a sealing groove is formed on the inner circumferential wall of the bushing. The seal is pressed against the inner wall of the rocker arm shaft and is at least partially located in the sealing groove.

[0005] According to the rocker arm assembly of the embodiment of the present application, waterproofing is achieved by constructing a sealing groove on the bushing and disposing a seal within the sealing groove, while maintaining the cylindrical structure of the rocker arm shaft, thereby maintaining the rocker arm shaft's good structural strength. Therefore, when the rocker arm assembly serves as an actuating mechanism or stress transmission mechanism, the rocker arm shaft in the rocker arm assembly can effectively transmit and withstand various stresses and loads, thereby achieving a good sealing effect between the rocker arm shaft and the bushing, and ensuring that the rocker arm assembly is not easily damaged, with good reliability, thereby increasing the service life of the air compressor.

[0006] According to a further embodiment of the present application, the sealing groove includes a groove bottom wall and a groove side wall, and the groove bottom wall and the groove side wall have an arc transition to define a U-shaped groove, or there is an obtuse angle between the groove bottom wall and the groove side wall to define a trapezoidal groove.

[0007] According to a further embodiment of the present application, there are multiple sealing grooves, and the multiple sealing grooves are arranged at intervals along the axial direction of the bushing.

[0008] Further, at least one sealing groove is provided adjacent to an axial end of the bushing.

[0009] Furthermore, the rocker arm shaft has a mating end, which extends outside the sleeve area of ​​the bushing. The mating end is used to connect the rocker arm, and the axial end of the bushing is located between the mating end and the seal adjacent to the axial end.

[0010] According to a further embodiment of the present application, a projection of the bushing along the axis of the rocker arm shaft is located within a projection range of the first end of the rocker arm along the axial direction of the rocker arm shaft.

[0011] According to a further embodiment of the present application, the sealing element is made of elastic material.

[0012] In a second aspect, the present application proposes an air compressor, comprising the rocker arm assembly in the above embodiment, wherein the first end of the rocker arm is connected to a power source, and the second end of the rocker arm is connected to an actuating mechanism.

[0013] In a third aspect, the present application proposes an engine, comprising an intake manifold, which is connected to the air compressor in the above embodiment.

[0014] In a fourth aspect, the present application proposes a vehicle comprising the engine in the above embodiment.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic structural diagram of a rocker arm assembly according to some embodiments of the present application;

[0018] Figure 2 is an axonometric view of a bushing according to some embodiments of the present application;

[0019] Figure 3 is a cross-sectional schematic diagram of a bushing and a seal after being matched according to some embodiments of the present application;

[0020] Figure 4 is a cross-sectional schematic diagram of another bushing and a seal after being matched according to some embodiments of the present application;

[0021] Figure 5 yes Figure 4 A partial enlarged view of area A in the middle.

[0022] Reference numerals:

[0023] 100-rocker arm assembly;

[0024] 110 - rocker arm, 111 - rocker arm shaft, 1111 - mating end, 112 - first end, 113 - middle section, 114 - second end;

[0025] 120 - bushing, 121 - sealing groove, 1211 - first sealing groove, 1212 - second sealing groove, 1213 - groove bottom wall, 1214 - groove side wall, 122 - upper end, 123 - lower end;

[0026] 130 - seal, 131 - first seal, 132 - second seal. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0030] In the description of this application, “plurality” means two or more.

[0031] In the description of the present application, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features being in contact with each other not directly but via another feature therebetween.

[0032] In the description of this application, a first feature “on”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0033] In the prior art, the rocker arm assembly of an air compressor includes a rocker arm shaft and a bushing mounted on the rocker arm shaft. In some cases, such as when an air compressor is installed in a vehicle (e.g., a horizontal air compressor), water may seep into the engine compartment due to a poorly sealed engine hood. This can cause the leaked liquid to flow into the rocker arm shaft and bushing area, leading to water seepage in the gap between the two and affecting the performance of the rocker arm assembly.

[0034] Among them, since the rocker arm assembly has a gap at the fitting point between the rocker arm shaft and the bushing (hereinafter, for the sake of convenience, it is collectively referred to as the fitting gap), the liquid will flow into the fitting gap between the two, causing the rocker arm assembly to leak. Specifically, the liquid will flow along the fitting gap and penetrate to the other end of the fitting gap, that is, flow to the connection area between the rocker arm shaft 111 and other mechanisms, affecting the operation of the rocker arm shaft. For example, when the weather is cold, the liquid may freeze, and the residual liquid in the connection area between the rocker arm shaft and other mechanisms will freeze. The corresponding area is affected by the ice and it is difficult to transmit smoothly, resulting in poor operation of the air compressor.

[0035] Reference below Figure 1-Figure 2 , describing a rocker arm assembly 100, an air compressor, an engine, and a vehicle according to an embodiment of the present application.

[0036] The rocker arm assembly 100 according to the embodiment of the present application includes a rocker arm 110 , a bushing 120 and a seal 130 .

[0037] Rocker arm 110 has a first end 112 and a second end 114. A rocker shaft 111 is disposed at first end 112, and second end 114 is connected to an actuator. Rocker shaft 111 is adapted to provide support and transmit power to rocker arm 110 or the actuator connected to rocker arm 110 and second end 114. For example, in rocker arm assembly 100 of a horizontal air compressor, rocker shaft 111 achieves power transmission through rotation or swinging.

[0038] like Figure 1-Figure 2 As shown, the bushing 120 is sleeved on the rocker shaft 111, and there is a fitting gap between the bushing 120 and the rocker shaft 111. The seal 130 is set between the rocker shaft 111 and the bushing 120, so that the fitting gap between the bushing 120 and the rocker shaft 111 is sealed by the seal 130 to achieve a waterproof effect and prevent liquid from flowing to other areas through this fitting gap.

[0039] Furthermore, after the seal 130 is set at the fitting gap, since the volume of the seal 130 is larger than the space that can be set at the fitting gap, it is necessary to construct an avoidance area at the fitting gap to meet the space required by the seal 130 at the fitting gap between the rocker shaft 111 and the bushing 120, so as to be suitable for setting the seal 130.

[0040] However, if an avoidance groove is opened on the rocker shaft 111 in order to construct an avoidance area, it will inevitably lead to changes in the overall structure of the rocker shaft 111, making the structure of the rocker shaft 111 uneven. When the rocker shaft 111 is subjected to force to drive the rocker arm 110, stress concentration will be formed at the position of the avoidance groove, causing the structural strength of the area to deteriorate and easily break.

[0041] To this end, the rocker arm assembly 100 in the embodiment of the present application has a bushing 120 sleeved on the rocker arm shaft 111, and a sealing groove 121 is formed on the inner circumferential wall of the bushing 120, so that the seal 130 is disposed within the sealing groove 121 formed on the bushing 120. This allows the escape area to be formed on the bushing 120 that does not directly bear the driving force, thereby maintaining the integrity of the rocker arm shaft 111, thereby effectively avoiding the risk of fracture caused by stress concentration on the rocker arm shaft 111 that is under stress due to the escape groove directly formed on the rocker arm shaft 111.

[0042] In addition, the seal 130 is pressed against the inner wall of the rocker shaft 111 and is at least partially located in the sealing groove 121, so that the seal 130 can fit the inner wall surface of the bushing 120 and the outer wall surface of the rocker shaft 111 respectively through the pressing action of the seal 130, thereby forming a good sealing and waterproof structure.

[0043] For example, Figure 2 As shown, the seal 130 is constructed as a ring body and has a certain elasticity. The ring body is sleeved on the rocker shaft 111. The seal 130 constructed as a ring body includes an inner peripheral wall and an outer peripheral wall. Figure 2 In the embodiment, the vicinity of the inner peripheral wall of the ring body is located outside the sealing groove 121 , and the remaining portion is located inside the sealing groove 121 , and the vicinity of the inner peripheral wall of the ring body is suitable for being compressed by the rocker arm shaft 111 .

[0044] Therefore, when the seal 130 is pressed against the inner wall of the rocker shaft 111 and embedded in the sealing groove 121, its elastic deformation ability enables the seal 130 to fill and fit tightly into the tiny gap between the rocker shaft 111 and the bushing 120, and the seal 130 can be stably maintained in the groove while maintaining sufficient compression to provide the necessary sealing pressure, so that the seal 130 can fit tightly into the inner wall of the rocker shaft 111 and the sealing groove 121 through its elastic deformation ability, forming an effective sealing barrier, thereby achieving a good sealing and waterproof effect.

[0045] Continue to refer Figure 1-Figure 2 As shown, the sealing groove 121 formed on the inner peripheral wall of the bushing 120 is used to accommodate the seal 130, and the rocker arm shaft 111 is constructed as a uniform cylindrical structure. The sealing groove 121 is located on the bushing 120 rather than on the rocker arm shaft 111, which can maintain the original structural integrity and uniformity of the rocker arm shaft 111.

[0046] The one end of the rocker shaft 111 is connected to the rocker arm 110, and the other end is used to be connected to a power source, such as a crank, directly or indirectly, to drive the rocker arm 110 to act. When the rocker shaft 111 is forced to rotate, the stress will be distributed on the column structure which is complete and uniform, and there will be no stress concentration phenomenon in a certain area, so that the rocker shaft 111 can maintain good structural strength, greatly reducing the possibility of fracture caused by stress concentration.

[0047] In addition, since the bushing 120 is a component independent of the rocker shaft 111, it is easy to manufacture and maintain. If the sealing groove 121 needs to be replaced due to long-term use or wear, only the bushing 120 needs to be replaced without replacing the entire rocker shaft 111, which not only reduces the maintenance cost, but also improves the maintainability of the equipment.

[0048] It can be understood from the above examples that the sealing member 130 is arranged between the rocker shaft 111 and the bushing 120 in the rocker assembly 100 to prevent water leakage at the matching gap. Moreover, the column structure of the rocker shaft 111 is not adjusted, but only the structure of the bushing 120 is changed, that is, the sealing groove 121 is constructed on the bushing 120 to adapt to the arrangement of the sealing member 130 at the matching area of the bushing 120 and the rocker shaft 111. Therefore, the rocker shaft 111 as a component bearing stress transmission function can retain the original column structure, so that the stress is uniformly distributed and has good structural strength, and is not easy to be damaged.

[0049] According to the rocker assembly 100 of the embodiment of the present application, the sealing groove 121 is constructed on the bushing 120 to arrange the sealing member 130 in the sealing groove 121 to achieve waterproofing, and the column structure of the rocker shaft 111 is not changed to maintain good structural strength of the rocker shaft 111. Therefore, when the rocker assembly 100 is used as an action mechanism or a stress transmission mechanism, the rocker shaft 111 in the rocker assembly 100 can effectively transmit and bear various stresses and loads, so that the rocker shaft 111 and the bushing 120 have good sealing effect, and the rocker assembly 100 is not easy to be damaged, has good reliability, thereby increasing the service life of the air compressor.

[0050] Based on the description of the above embodiment, the structure of constructing the sealing groove 121 on the bushing 120 to arrange the sealing member 130 will not cause the mechanical structure of the rocker assembly 100 to be poor and easy to break. In other words, multiple sealing grooves 121 can be constructed on the bushing 120 to adapt to the arrangement of multiple sealing members 130 at the matching area of the bushing 120 and the rocker shaft 111, further improving the sealing performance of the rocker assembly 100.

[0051] Therefore, in some embodiments, the sealing groove 121 can be constructed as multiple, and the multiple sealing grooves 121 are spaced apart along the axial direction of the bushing 120 to form multi-level waterproofing along the fitting gap between the bushing 120 and the rocker arm shaft 111, thereby improving the sealing and waterproofing effect.

[0052] For example, reference Figure 1-Figure 2 As shown, the sealing groove 121 is constructed into two, and a sealing member 130 is correspondingly provided in each sealing groove 121; the two sealing grooves 121 are respectively defined as a first sealing groove 1211 and a second sealing groove 1212, and the corresponding two sealing members 130 are respectively defined as a first sealing member 131 and a second sealing member 132.

[0053] Specifically, the first sealing groove 1211 and the second sealing groove 1212 are sequentially arranged along the axis of the bushing 120. Accordingly, the first sealing member 131 and the second sealing member 132 sequentially form a seal along the axis of the bushing 120. This results in a plurality of sequentially arranged sealing and waterproof areas in the fitting gap between the bushing 120 and the rocker arm shaft 111 along the axis of the bushing 120. This increases the length of the sealing path in the fitting gap, making it difficult for liquid to continue to penetrate or flow as it flows or permeates along the axis by overcoming more sealing obstacles, thereby improving the waterproof sealing effect.

[0054] It can be understood that since constructing a seal 130 between the bushing 120 and the rocker arm shaft 111 does not affect the mechanical structural performance of the rocker arm assembly 100, two or even more seals 130 can be constructed between the two to form a first level of waterproofing through each seal 130, and finally form multi-level sealing and waterproofing through multiple seals 130, thereby improving the sealing and waterproofing effect at the fitting gap in the rocker arm assembly 100.

[0055] In some examples, the sealing groove 121 is arranged adjacent to the axial end of the bushing 120 to set a seal 130 at the end of the bushing 120, so that the seal 130 can form a seal in the end area where the bushing 120 is fitted to the rocker shaft 111, thereby improving the waterproof sealing effect of the rocker assembly 100.

[0056] Continue to refer Figure 1-Figure 2 In this example, bushing 120 is sleeved over the middle section 113 of rocker arm shaft 111. Both ends of bushing 120 are chamfered, and the outer circumference of the middle section is also formed with an arcuate groove. Furthermore, the clearance defined between bushing 120 and rocker arm shaft 111 extends from one end of bushing 120 to the other.

[0057] A first sealing groove 1211 and a second sealing groove 1212 are respectively formed near the two ends of the bushing 120, correspondingly accommodating the first sealing member 131 and the second sealing member 132. This allows the first sealing member 131 and the second sealing member 132, disposed near the two ends of the bushing 120, to form a seal at their respective end regions, thereby preventing liquid from penetrating the majority of the mating gap and improving the waterproofing effect.

[0058] It can be understood that when liquid penetrates into the rocker arm assembly 100, the liquid will penetrate into the fitting gap along the edge of the bushing 120. Therefore, a seal 130 is provided at the axial end of the bushing 120, which can effectively form a barrier at the starting position of the liquid inflow area to seal most of the fitting gap and waterproof, thereby improving the sealing and waterproof effect produced by the seal.

[0059] Of course, in different examples, only one seal 130 may be provided, and the seal 130 may be provided in the direction toward the liquid flowing into the rocker arm assembly 100 and in the area near the end of the bushing 120 in the corresponding direction, which can also basically achieve a waterproof sealing effect, and the details will not be repeated.

[0060] In some embodiments, the rocker arm shaft 111 has a mating end 1111 that extends beyond the sleeve region of the bushing 120. The mating end 1111 is used to connect to the rocker arm 110, so that power received by the rocker arm shaft 111 is transmitted to the rocker arm 110 through the connection between the mating end 1111 and the rocker arm shaft 111. Furthermore, an axial end of the bushing 120 is located between the mating end 1111 and a seal 130 adjacent to the axial end. One axial end of the bushing 120 is located proximate to the mating end 1111, and the seal 130 seals a portion of the axial end away from the mating end 1111.

[0061] Exemplary, continue to combine Figure 1 For better understanding, the rocker arm 110 is constructed as a long plate, with two ends, namely a first end 112 and a second end 114, connected by a middle section 113. The first end 112 bends and extends to form the middle section 113, which in turn bends and extends to form the second end 114. Both the first end 112 and the second end 114 are parallel to the end surface of the bushing 120, and the first end 112 is configured to mate with the mating end 1111.

[0062] Here, the axial end of the bushing 120 close to the mating end 1111 is defined as an upper end 122 , and the other end is defined as a lower end 123 . The upper end 122 is located between the first end 112 and the first sealing member 131 .

[0063] Specifically, the first end 112 mates with the mating end 1111, and the two are fixedly connected, so as to transmit the power of the rocker shaft 111 to the rocker arm 110. That is, the rocker shaft 111 drives the rocker arm 110 to rotate synchronously. The second end 114 is configured with a through hole (not shown in the figure), and the second end 114 mates with other mechanisms through the through hole, so that the mechanism mated with the second end 114 rotates or swings around the rocker shaft 111 under the drive of the second end 114.

[0064] Therefore, the first seal 131 is arranged close to the connection area between the rocker shaft 111 and the rocker arm 110, that is, near the mating end 1111. When the liquid penetrates or flows from the first end 112 to the rocker shaft 111, the mating end 111 forms a first barrier to the liquid to prevent the liquid from flowing from the upper end 112 into the mating gap. Then, the first seal 131 performs a second barrier to the liquid flowing through the mating end 111 to the upper end 112 area.

[0065] It is understood that the first seal 131 and the first end 112 define the upper end 122 therebetween, and both form a barrier to the flow of liquid. This makes it difficult for liquid to penetrate into the clearance between the first seal 131 and the first end 112, thereby reducing the amount of liquid that enters the upper end 122 and the area surrounding the upper end 122, thereby improving the waterproofing of the rocker arm assembly 100.

[0066] Furthermore, the projection of the bushing 120 along the axis of the rocker arm shaft 111 is located within the projection range of the first end 112 of the rocker arm 110 along the axial direction of the rocker arm shaft 111. In other words, the projection of the upper end 122 of the bushing 120 along the axis of the rocker arm shaft 111 in this example is located within the projection range of the first end 112 of the rocker arm shaft 111 along the axis of the rocker arm shaft 111, so that the first end 112 blocks the upper end 122 along the axis of the rocker arm shaft 111, thereby preventing liquid from flowing to the upper end 122 of the bushing 120 to a certain extent.

[0067] It is understood that the first end 112 of the rocker arm shaft 111 can shield the upper end 122 of the bushing 120 along the axial direction of the bushing. Accordingly, the first end 112 of the rocker arm 110 can shield the fitting gap area near the upper end 112. The shielding effect of the first end 112 can achieve a certain waterproof effect, increase the difficulty of liquid (such as water) entering the fitting gap, and improve the waterproof effect of the rocker arm assembly 100.

[0068] In some embodiments, based on any of the above embodiments, the seal 130 can be made of an elastic material, such as rubber, PTE plastic, etc.

[0069] Next, the structure of the sealing groove 121 is described with reference to two examples.

[0070] In some examples, reference Figure 3 As shown, the sealing groove 121 includes a groove bottom wall 1213 and a groove side wall 1214. The groove bottom wall 1213 and the groove side wall 1214 are transitioned into an arc to define a U-shaped groove. Accordingly, the sealing member 130 is an annular structure, and the cross-section of the sealing member 130 is circular. The circular contour of the sealing member 130 is suitable for cooperating with the U-shaped groove, thereby evenly pressing against the inner wall surface of the U-shaped groove.

[0071] It can be understood that after the inner wall structure of the U-shaped groove is matched with the seal 130, since the two have the same contour, the two have a good fit after matching, and combined with the mortgage effect formed by the rocker shaft 111 on the seal 130, it can form a good water-proof effect along the axial direction of the bushing 120, thereby improving the waterproof effect of the seal 130.

[0072] In some examples, reference Figure 4-Figure 5 As shown, the sealing groove 121 includes a groove bottom wall 1213 and a groove side wall 1214 , and an obtuse angle is formed between the bottom wall and the groove side wall 1214 to define a trapezoidal groove.

[0073] Specifically, sealing groove 121 is an annular groove body, and sealing member 130 is an annular elastic seal. Seal member 130 has a circular cross-section, while sealing groove 121 has a trapezoidal cross-section. The two sidewalls in the cross-section are defined herein as a first sidewall and a second sidewall. The first and second sidewalls are inclined outward relative to groove bottom wall 1213, and the first and second sidewalls smoothly transition to groove bottom wall 1213 to reduce friction between seal member 130 and the inner circumferential wall of bushing 120 during installation or movement.

[0074] Since there is an obtuse angle between the groove bottom wall 1213 and the groove side wall 1214, the distance between the groove side walls 1214 on both sides of the trapezoidal groove gradually increases in the direction of the groove side wall 1214 toward the rocker arm shaft 111, thereby providing more placement space for the seal 130, so that the seal 130 can be moved into the trapezoidal groove along the rocker arm shaft 111 toward the groove bottom wall 1213, or taken out of the trapezoidal groove.

[0075] Furthermore, the first sidewall and the second sidewall squeeze the seal 130 from two opposite sides roughly along the axis of the bushing 120, so that the sealing groove 121 and the seal 130 are tightly fitted together, thereby forming a good sealing and waterproof effect. Furthermore, under the squeezing action of the two sidewalls, the seal 130 undergoes a certain deformation, namely, it is flattened along the axis of the bushing 120, thereby causing the seal 130 to lengthen in a direction perpendicular to the axis of the bushing 120. Furthermore, the seal 130 is firmly squeezed against the rocker arm shaft 111 through the limiting action of the groove bottom wall 1213.

[0076] It will be appreciated that, because the distance between the groove sidewalls 1214 on either side gradually increases toward the rocker shaft 111, the seal is suitable for installation and removal from the sealing groove 121 along the rocker shaft 111 toward the groove bottom wall 1213. Furthermore, the planar groove bottom wall 1213 and groove sidewalls 1214 are tangential to the circular profile of the seal 130, squeezing the seal 130 to achieve a sealing effect of the seal 130 relative to the rocker shaft 111, thereby enhancing the waterproof sealing effect provided by the seal 130.

[0077] Of course, the sealing groove may also be constructed as other structures suitable for matching with the ring-mounted sealing member, which will not be described in detail here.

[0078] The air compressor according to the embodiment of the present application includes the rocker arm assembly 100 in the above embodiment, the first end 112 of the rocker arm 110 is connected to the power source, and the second end 114 of the rocker arm 110 is connected to the actuating mechanism.

[0079] Among them, the air compressor can be any one of a piston air compressor, a turbine air compressor, a mechanical air compressor, etc. Correspondingly, the power source can be a crank, etc., so as to transmit the rotational torque to the first end 112 through the rocker arm assembly 100, and then transmit it to the second end 114 through the rocker arm 110, so as to drive the actuating mechanism in the air compressor, such as the piston, valve, impeller, etc. to swing or rotate.

[0080] The engine according to an embodiment of the present application includes an intake manifold, which is connected to the air compressor in the above embodiment to provide gas to the engine's combustion chamber via the air compressor. Furthermore, the intake manifold and the air compressor may be directly or indirectly connected.

[0081] A vehicle according to an embodiment of the present application includes the engine in the above embodiment.

[0082] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0083] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A rocker arm assembly, characterized in that: include: A rocker arm (110), wherein a first end (1111) of the rocker arm (110) is provided with a rocker arm shaft (111); A bushing (120), wherein the bushing (120) is sleeved on the rocker arm shaft (111), and a sealing groove (121) is formed on the inner peripheral wall of the bushing (120); A sealing member (130) is pressed against the inner wall of the rocker arm shaft (111) and is at least partially located in the sealing groove (121).

2. The rocker arm assembly according to claim 1, wherein: The sealing groove (121) comprises a groove bottom wall (1213) and a groove side wall (1214); a circular arc transition is formed between the groove bottom wall (1213) and the groove side wall (1214) to define a U-shaped groove, or an obtuse angle is formed between the groove bottom wall (1213) and the groove side wall (1214) to define a trapezoidal groove.

3. The rocker arm assembly according to claim 1, wherein: There are a plurality of sealing grooves (121), and the plurality of sealing grooves (121) are arranged at intervals along the axial direction of the bushing (120).

4. The rocker arm assembly according to claim 3, characterized in that At least one of the sealing grooves (121) is disposed adjacent to an axial end of the bushing (120).

5. The rocker arm assembly according to claim 4, characterized in that The rocker arm shaft (111) has a mating end, which extends outside the sleeve area of ​​the bushing (120). The mating end is used to connect the rocker arm (110), and the axial end of the bushing (120) is located between the mating end and the seal (130) adjacent to the axial end.

6. The rocker arm assembly according to any one of claims 1 to 5, characterized in that: The projection of the bushing (120) along the axial direction of the rocker arm shaft (111) is located within the projection range of the first end (1111) of the rocker arm (110) along the axial direction of the rocker arm shaft (111).

7. The rocker arm assembly according to any one of claims 1 to 5, characterized in that: The sealing member (130) is made of elastic material.

8. An air compressor, characterized in that: include: The rocker arm assembly according to any one of claims 1 to 7, wherein the first end (1111) of the rocker arm (110) is connected to a power source, and the second end (1113) of the rocker arm (110) is connected to an actuating mechanism.

9. An engine, characterized in that: include: intake manifold; The intake manifold is communicated with the air compressor according to claim 8.

10. A vehicle, characterized in that: include: The engine according to claim 9.

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