Anti-vibration pad with bump structure and air supply unit

Abstract

The anti-vibration pad with the bulge structure and the air supply unit comprise an anti-vibration pad body and a metal lining, the anti-vibration pad body is in a sleeve shape, and an installation groove is formed in the outer cylindrical face of the anti-vibration pad body; the metal lining coaxially penetrates through the anti-vibration pad body, a protruding structure is arranged on the outer cylindrical face of the metal lining, and a positioning groove matched with the protruding structure is formed in the inner cylindrical face of the anti-vibration pad body. A protruding structure is additionally arranged on the metal lining, and a positioning groove matched with the protruding structure is additionally arranged on the anti-vibration pad body. And meanwhile, a limiting edge is arranged on the lower port of the metal lining. After the metal lining and the anti-vibration pad body are assembled, the protruding structure of the metal lining is tightly clamped in the anti-vibration pad body, and therefore the problem that the metal lining is prone to falling off is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile acoustic packages, in particular to a vibration-damping pad with a bulge structure and an air supply unit. Background Art

[0002] As air suspension is installed on more and more vehicles, the development speed of air suspension is unprecedented. The air supply unit of the air suspension serves as the gas supply center of the entire air suspension system. Its performance will affect the entire air suspension system and the performance of the vehicle. Improving the performance of each component of the air supply unit can improve the performance of the assembly and system.

[0003] Currently, split upper and lower vibration dampers are connected by a central metal bushing that penetrates the pads and is then pressed against the mounting bracket. The pads and the metal bushings have an interference fit, and the compression of the pads forces them to engage the bushings, preventing them from falling off to a certain extent. However, during actual transportation, the bushings can still fall off easily, significantly impacting the delivery and production of the entire product.

[0004] Therefore, it is necessary to design a vibration damping pad and an air supply unit with a bulge structure to solve the problem that the above-mentioned metal bushing is easy to fall off. Utility Model Content

[0005] In view of some of the shortcomings of the above-mentioned prior art, the utility model provides a bulging structure and an air supply unit, which effectively reduce the weight of the product by using suitable materials, and the injection molding process is simple and easy to operate.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides a vibration damping pad with a bulge structure, comprising:

[0007] The vibration damping pad body is sleeve-shaped, and a mounting groove is provided on the outer cylindrical surface of the vibration damping pad body;

[0008] A metal bushing coaxially passes through the vibration damping pad body, and a convex structure is provided on the outer cylindrical surface of the metal bushing;

[0009] Wherein, a positioning groove cooperating with the protruding structure is provided on the inner cylindrical surface of the vibration damping pad body.

[0010] In one embodiment of the present invention, a limiting edge is provided on the lower end of the metal bushing, and the limiting edge is arranged perpendicular to the axial direction of the metal bushing.

[0011] In one embodiment of the present invention, the protruding structure is provided on the outer cylindrical surface of the metal bushing away from the lower end thereof.

[0012] In one embodiment of the present invention, the vibration damping pad body includes an upper vibration damping pad and a lower vibration damping pad, the lower vibration damping pad and the upper vibration damping pad are sequentially sleeved on the metal bushing, and the corresponding end surfaces are arranged by concave-convex matching.

[0013] In one embodiment of the present invention, a sink is provided in the through hole of the lower vibration damping pad, and a boss is provided at the lower end of the upper vibration damping pad to cooperate with the sink, and the sinking height of the sink is less than the protruding height of the boss, so that an annular mounting groove is formed between the upper vibration damping pad and the lower vibration damping pad.

[0014] In one embodiment of the present invention, a positioning groove is formed on the inner cylindrical surface of the upper vibration damping pad.

[0015] In one embodiment of the present invention, the upper vibration damping pad is sleeve-shaped, and the outer cylindrical surface of the upper vibration damping pad is a three-step surface, which includes an upper step surface, a middle step surface and a lower step surface in sequence, and the diameters of the upper step surface and the lower step surface are both smaller than the diameter of the middle step surface. A positioning groove is provided on the inner cylindrical surface of the upper vibration damping pad corresponding to the middle step surface.

[0016] In one embodiment of the present invention, the lower vibration damping pad is sleeve-shaped, and the outer cylindrical surface of the lower vibration damping pad is a step surface, and includes a first step surface and a second step surface, and the diameter of the second step surface is smaller than the diameter of the first step surface, and a sink is provided in the through hole of the lower vibration damping pad corresponding to the first step surface.

[0017] In order to achieve the above-mentioned purpose and other related purposes, the utility model also provides an air supply unit, including a mounting plate, an air supply unit body and the above-mentioned vibration-damping pad with a bulge structure, wherein the air supply unit body is mounted on the mounting plate, and the mounting plate is mounted on the chassis of the vehicle through the vibration-damping pad.

[0018] In one embodiment of the present invention, the mounting plate is square, and mounting holes are provided at the right angles of the mounting plate. A locking boss is provided in the mounting hole, and the locking boss is fitted into the mounting groove. The bolt passes through the metal bushing of the vibration damping pad and is fixedly connected to the welding nut of the chassis.

[0019] The beneficial technical effects of the present utility model include at least:

[0020] (1) The vibration damping pad with a bulge structure of the present invention has a raised structure added to the metal bushing and a positioning groove that matches the raised structure added to the vibration damping pad body. At the same time, a limiting edge is provided on the lower end of the metal bushing. After the metal bushing and the vibration damping pad body are assembled, the raised structure of the metal bushing is firmly fixed to the vibration damping pad body, thereby solving the problem of the metal bushing being easily detached.

[0021] (2) The vibration damping pad with a bulge structure of the present invention has a boss at the lower end of the upper vibration damping pad, i.e., a lower step surface, which cooperates with a sunken platform in the through hole of the lower vibration damping pad, so that the upper and lower vibration damping pads are non-fixedly matched. While maintaining the relative positions of the upper and lower vibration damping pads, the impact force of one vibration damping pad on the other vibration damping pad when the pad moves can be reduced. In addition, the upper step surface can provide a buffering effect for the upward movement of the upper vibration damping pad, and the second step surface of the lower vibration damping pad can provide a buffering effect for the downward movement of the lower vibration damping pad.

[0022] (3) In the vibration-damping pad with a bulge structure of the present invention, the sinking height of the sinking platform is less than the protruding height of the protruding platform, so that an annular mounting groove is formed between the upper vibration-damping pad and the lower vibration-damping pad. The mounting groove is provided at the junction of the upper vibration-damping pad and the lower vibration-damping pad, so that the mounting groove is composed of a split structure, and thus can produce relative deformation in accordance with the movement of the components installed in the mounting groove, thereby reducing damage to the mounting groove. This ensures the durability of the vibration-damping pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a vibration damping pad with a bulge structure provided by one embodiment of the present utility model;

[0024] Figure 2 for Figure 1 The main view;

[0025] Figure 3 for Figure 2 CC cross-sectional view;

[0026] Figure 4 This is a diagram showing the use of a vibration damping pad with a bulge structure according to the present invention;

[0027] Figure 5 for Figure 4 Another axonometric drawing.

[0028] Component Symbol Description:

[0029] Vibration damping pad body 1, mounting groove 11, positioning groove 12, upper vibration damping pad 13, lower vibration damping pad 14, upper step surface 131, middle step surface 132, lower step surface 133, first step surface 141, second step surface 142, metal bushing 2, protruding structure 21, limiting edge 22, mounting plate 3, mounting hole 31, locking boss 311. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0031] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0032] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0033] It should be noted that the main function of vibration damping pads is to reduce the vibration and noise generated by the vehicle during driving, and to improve comfort and stability. Vibration damping pads can be used in multiple parts, such as the suspension system, engine mounts, body and chassis. Vibration damping pads are generally made of materials such as rubber, polyurethane, and silicone, which have good elasticity and vibration damping capabilities. Specifically, vibration damping pads absorb the impact caused by uneven roads, reducing the impact on the body and passengers; reduce the noise of the vehicle during driving, and improve the quietness of driving; protect vehicle components from vibration damage and extend their service life. Therefore, vibration damping pads are widely used in the design and manufacture of passenger cars, commercial vehicles and special vehicles. They are important components for improving vehicle ride comfort and safety. Reasonable design and selection can significantly improve the driving performance of the vehicle.

[0034] See Figure 1 To achieve the above-mentioned and other related purposes, the present invention provides a vibration damping pad with a bulge structure, comprising a vibration damping pad body 1 and a metal bushing 2. The vibration damping pad body 1 is sleeve-shaped, and a mounting groove 11 is provided on the outer cylindrical surface of the vibration damping pad body 1. The metal bushing 2 coaxially passes through the vibration damping pad body 1, and a protrusion structure 21 is provided on the outer cylindrical surface of the metal bushing 2. Among them, a positioning groove 12 is provided on the inner cylindrical surface of the vibration damping pad body 1 to cooperate with the protrusion structure 21.

[0035] The aforementioned vibration damping pad, metal bushing 2, and vibration damping pad body 1 are relatively fixed by the cooperation of the protrusion structure 21 and the positioning groove 12, thus solving the problem of the metal bushing 2 being easily detached during transportation. The protrusion structure 21 forms a bulge on the outside of the metal bushing 2, and the protrusion structure 21 can be a convex ring or other shape, so that the protrusion structure 21 is arranged in the positioning groove 12.

[0036] In one embodiment of the present invention, a limiting edge 22 is provided on the lower end of the metal bushing 2, and the limiting edge 22 is arranged perpendicular to the axial direction of the metal bushing 2. A protruding structure 21 is provided on the outer cylindrical surface of the metal bushing 2 away from the lower end thereof.

[0037] It should be noted that the limiting edge 22 and the protruding structure 21 can relatively fix the metal bushing 2 from the upper and lower ends, so that the combination of the metal bushing 21 and the vibration damping pad body 1 is more reliable.

[0038] In one embodiment of the present invention, the vibration damping pad body 1 includes an upper vibration damping pad 13 and a lower vibration damping pad 14 . The lower vibration damping pad 14 and the upper vibration damping pad 13 are sequentially sleeved on the metal bushing 2 , and the corresponding end surfaces are provided with concave-convex fitting.

[0039] Furthermore, a sink is provided in the through hole of the lower vibration damping pad 14, and a boss is provided at the lower end of the upper vibration damping pad 13 to cooperate with the sink, and the sinking height of the sink is less than the protruding height of the boss, so that an annular mounting groove 11 is formed between the upper vibration damping pad 13 and the lower vibration damping pad 14.

[0040] It should be noted that the upper vibration damping pad 13 and the lower vibration damping pad 14 are sleeved on the metal bushing 2, and the boss at the lower end of the upper vibration damping pad 13 cooperates with the sink in the through hole of the lower vibration damping pad 14, so that the upper vibration damping pad 13 and the lower vibration damping pad 14 are non-fixedly matched. While maintaining the relative position of the upper vibration damping pad 13 and the lower vibration damping pad 14, the impact force of the collision of one vibration damping pad on the other vibration damping pad when it moves can be reduced.

[0041] In one embodiment of the present invention, a positioning groove 12 is defined on the inner cylindrical surface of the upper vibration damping pad 13 .

[0042] In one embodiment of the present invention, the upper vibration damping pad 13 is sleeve-shaped, and the outer cylindrical surface of the upper vibration damping pad 13 is a three-step surface, including, in sequence, an upper step surface 131, a middle step surface 132, and a lower step surface 133. The diameters of the upper step surface 131 and the lower step surface 133 are both smaller than the diameter of the middle step surface 132. A positioning groove 12 is provided on the inner cylindrical surface of the upper vibration damping pad 13 corresponding to the middle step surface 132. The lower vibration damping pad 14 is sleeve-shaped, and the outer cylindrical surface of the lower vibration damping pad 14 is a stepped surface, including a first step surface 141 and a second step surface 142. The diameter of the second step surface 142 is smaller than the diameter of the first step surface 141. A recessed platform is provided in the through hole of the lower vibration damping pad 14 corresponding to the first step surface 141.

[0043] It should be noted that the lower step surface 133 of the upper vibration damping pad 13 is the boss of the upper vibration damping pad 13, the upper step surface 131 can provide a buffering effect on the upward movement of the upper vibration damping pad 13, and the second step surface 142 of the lower vibration damping pad 14 can provide a buffering effect on the downward movement of the lower vibration damping pad 14.

[0044] To achieve the above and other related objectives, the present invention further provides an air supply unit comprising a mounting plate and the aforementioned vibration-damping pad with a bulged structure. The mounting plate 3 is mounted to the vehicle chassis via the vibration-damping pad. The mounting plate 3 is square and has mounting holes 31 defined at right angles. Locking bosses 311 are provided within the mounting holes 31. The locking bosses 311 engage and engage with the mounting slots 11. Bolts pass through the metal bushings 2 of the vibration-damping pad and are secured to the chassis with welded nuts.

[0045] In summary, the lightweight acoustic package and air suspension system of the present invention have at least the following beneficial technical effects:

[0046] (1) A protruding structure 21 is added to the metal bushing 2, and a positioning groove 12 is added to the vibration damping pad body 1 to match the protruding structure 21. At the same time, a limiting edge 22 is provided on the lower end of the metal bushing 2. In this way, after the metal bushing 2 and the vibration damping pad body 1 are assembled, the protruding structure 21 of the metal bushing 2 is firmly fixed in the vibration damping pad body 1, thereby solving the problem of the metal bushing 2 being easily detached.

[0047] (2) The vibration damping pad body 1 includes an upper vibration damping pad 13 and a lower vibration damping pad 14. The upper vibration damping pad 13 is sleeve-shaped and includes an upper step surface 131, a middle step surface 132, and a lower step surface 133. The lower vibration damping pad 14 is sleeve-shaped and includes a first step surface 141 and a second step surface 142. A sink is provided in the through hole of the lower vibration damping pad 14 corresponding to the first step surface 141.

[0048] The aforementioned boss, or lower stepped surface 133, at the lower end of upper vibration damping pad 13 cooperates with the recessed surface within the through-hole of lower vibration damping pad 14, resulting in a non-fixed fit between upper and lower vibration damping pads 13, 14. This maintains the relative positions of upper and lower vibration damping pads 13, 14 while reducing the impact force of one vibration damping pad on the other when it moves. Furthermore, upper stepped surface 131 provides a cushioning effect against upward movement of upper vibration damping pad 13, while second stepped surface 142 of lower vibration damping pad 14 provides a cushioning effect against downward movement of lower vibration damping pad 14.

[0049] The sunken platform's lowered height is less than the raised height of the boss, forming an annular mounting groove 11 between the upper and lower vibration-damping pads 13, 14. Mounting groove 11 is located at the junction of the upper and lower vibration-damping pads 13, 14, resulting in a split-body structure. This allows for relative deformation with the movement of components mounted within the groove, minimizing damage to the groove 11. This ensures the durability of the vibration-damping pads.

[0050] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the method and computer program product according to various embodiments of the present utility model. In this regard, each box in the flowchart or block diagram can represent a module, program segment, or a part of code, and the module, program segment, or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of the boxes in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A vibration damping pad with a bulge structure, characterized in that: include: A vibration damping pad body (1), the vibration damping pad body (1) is sleeve-shaped, and a mounting groove (11) is provided on the outer cylindrical surface of the vibration damping pad body (1); A metal bushing (2), the metal bushing (2) coaxially passing through the vibration damping pad body (1), and a protruding structure (21) is provided on the outer cylindrical surface of the metal bushing (2); Wherein, a positioning groove (12) cooperating with the protruding structure (21) is provided on the inner cylindrical surface of the vibration-damping pad body (1).

2. The vibration damping pad with a bulge structure according to claim 1, characterized in that: A limiting edge (22) is provided around the lower end of the metal bushing (2), and the limiting edge (22) is perpendicular to the axial direction of the metal bushing (2).

3. The vibration damping pad with a bulge structure according to claim 2, characterized in that: The protruding structure (21) is provided on the outer cylindrical surface of the metal bushing (2) away from the lower port thereof.

4. The vibration damping pad with a bulge structure according to claim 3, characterized in that: The vibration damping pad body (1) comprises an upper vibration damping pad (13) and a lower vibration damping pad (14); the lower vibration damping pad (14) and the upper vibration damping pad (13) are sequentially sleeved on the metal bushing (2), and are arranged on corresponding end surfaces through concave-convex fitting.

5. The vibration damping pad with a bulge structure according to claim 4, characterized in that: A sinking platform is provided in the through hole of the lower vibration damping pad (14), and a boss is provided at the lower end of the upper vibration damping pad (13) to cooperate with the sinking platform, and the sinking height of the sinking platform is smaller than the protruding height of the boss, so that the annular mounting groove (11) is formed between the upper vibration damping pad (13) and the lower vibration damping pad (14).

6. The vibration damping pad with a bulge structure according to claim 5, characterized in that: The positioning groove (12) is provided on the inner cylindrical surface of the upper vibration damping pad (13).

7. The vibration damping pad with a bulge structure according to claim 6, characterized in that: The upper vibration damping pad (13) is sleeve-shaped, and the outer cylindrical surface of the upper vibration damping pad (13) is a step surface, and sequentially includes an upper step surface (131), a middle step surface (132), and a lower step surface (133), and the diameters of the upper step surface (131) and the lower step surface (133) are both smaller than the diameter of the middle step surface (132), and the positioning groove (12) is provided on the inner cylindrical surface of the upper vibration damping pad (13) corresponding to the middle step surface (132).

8. The vibration damping pad with a bulge structure according to claim 7, characterized in that: The lower vibration damping pad (14) is sleeve-shaped, and the outer cylindrical surface of the lower vibration damping pad (14) is a stepped surface, including a first stepped surface (141) and a second stepped surface (142), and the diameter of the second stepped surface (142) is smaller than the diameter of the first stepped surface (141), and the sinking platform is provided in the through hole of the lower vibration damping pad (14) corresponding to the first stepped surface (141).

9. An air supply unit, comprising a mounting plate and an air supply unit body, wherein the air supply unit body is mounted on the mounting plate, characterized in that: It also comprises a vibration-damping pad with a bulging structure as claimed in any one of claims 1 to 8, and the mounting plate (3) is mounted on the chassis of the vehicle through the vibration-damping pad.

10. The air supply unit according to claim 9, characterized in that: The mounting plate (3) is square, and mounting holes (31) are provided at right angles of the mounting plate (3). A locking boss (311) is provided in the mounting hole (31). The locking boss (311) is engaged and clamped on the mounting groove (11). Bolts pass through the metal bushing (2) of the vibration damping pad and are fixedly connected to the welding nut of the chassis.

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