Bushing with high reliability and excellent performance

Abstract

The utility model discloses a bushing with both high reliability and excellent performance, which relates to the technical field of automobile parts, and comprises an outer pipe, an inner pipe and a rubber body arranged between the outer pipe and the inner pipe, the outer pipe comprises a first pipe body, glue containing grooves are oppositely arranged on two sides of the middle of the first pipe body, and the rubber containing grooves are arranged in the first pipe body. A first necking part is arranged at the position, close to the upper end, of the first pipe body, and a second necking part is arranged at the position, close to the lower end, of the first pipe body; the inner pipe comprises a second pipe body, and a bulge part is arranged in the middle of the second pipe body. According to the utility model, the failure phenomenon caused by insufficient mounting structure strength when a vehicle moves under severe working conditions can be avoided. And a good NVH effect and an assembly effect can be provided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a bushing with high reliability and excellent performance. Background Art

[0002] In recent years, with the upgrading of consumption, the demand for riding comfort has become increasingly higher. Figure 1 As mentioned above, the current basic structure of the bushing consists of a straight inner tube, a straight outer tube and a rubber body structure. This structure has insufficient axial rigidity, which greatly reduces the ride comfort during sudden braking and sharp cornering conditions of the vehicle. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the purpose of this utility model is to provide a bushing with both high reliability and excellent performance, which can avoid failure caused by insufficient installation structure strength when the vehicle is moving under harsh working conditions. It can also provide excellent NVH and assembly effects.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a bushing with both high reliability and excellent performance, comprising an outer tube, an inner tube and a rubber body arranged between the outer tube and the inner tube, the outer tube comprising a first tube body, rubber containing grooves are relatively arranged on both sides of the middle part of the first tube body, a first constricted portion is arranged near the upper end of the first tube body, and a second constricted portion is arranged near the lower end of the first tube body; the inner tube comprises a second tube body, and a bulge is arranged in the middle part of the second tube body.

[0005] A further improvement is that the upper end opening of the first tube is bent horizontally outward to form a horizontal flange.

[0006] A further improvement is that an anti-error limiting groove is provided at the edge of the horizontal flange.

[0007] A further improvement is that the lower end opening of the first tube is bent outwardly to form an outer flange.

[0008] A further improvement is that inverted cones are respectively provided at both ends of the inner tube.

[0009] A further improvement is that anti-slip grooves are respectively provided on both end surfaces of the inner tube.

[0010] A further improvement is that the openings at both ends of the inner tube adopt an internal expansion process.

[0011] A further improvement is that the glue containing groove is of rectangular structure and is arranged opposite to the bulging part.

[0012] A further improvement is that both ends of the inner tube extend from the outer tube.

[0013] A further improvement is that: a recessed portion is provided corresponding to the position of the rubber body located in the rubber containing groove.

[0014] The beneficial effects of the present invention are:

[0015] The utility model can avoid failure caused by insufficient strength of the mounting structure when the vehicle is moving under adverse working conditions, and can provide good NVH effect and assembly effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of a traditional bushing;

[0017] Figure 2 A three-dimensional diagram of a bushing with high reliability and excellent performance in an embodiment of the present utility model;

[0018] Figure 3 This is a cross-sectional view of a bushing with high reliability and excellent performance in an embodiment of the present utility model;

[0019] Figure 4 This is a three-dimensional diagram of the outer tube in the embodiment of the present utility model;

[0020] Figure 5 This is a three-dimensional view from the other side of the outer tube in the embodiment of the present invention;

[0021] Figure 6 This is a cross-sectional view of the outer tube in the embodiment of the present utility model;

[0022] Figure 7 This is a three-dimensional diagram of the inner tube in the embodiment of the present utility model;

[0023] Figure 8 This is a three-dimensional view from the other side of the inner tube in the embodiment of the present invention;

[0024] Figure 9 This is a cross-sectional view of the inner tube in the embodiment of the present utility model;

[0025] Reference numerals:

[0026] 1-outer tube; 11-first tube body; 12-glue holding groove; 13-horizontal flange; 14-error prevention limit groove; 15-outer flange; 16-first constricted part; 17-second constricted part;

[0027] 2-inner tube; 21-second tube body; 22-bulge; 23-inverted cone; 24-anti-slip groove;

[0028] 3- Rubber body. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0030] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0032] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," and "connect" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection; direct connection, connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] In the utility model, unless otherwise specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "below," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "above," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] The following description of the embodiments of the present invention is provided in conjunction with the accompanying drawings to further describe the specific embodiments of the present invention so that the technical solutions and beneficial effects of the present invention are more clearly understood. The following description of the embodiments with reference to the accompanying drawings is for illustrative purposes only and is intended to explain the present invention, but is not to be construed as limiting the present invention.

[0035] See also Figures 2 and 3 As shown, an embodiment of the present invention provides a bushing with high reliability and excellent performance, including an outer tube 1, an inner tube 2 and a rubber body 3 arranged between the outer tube 1 and the inner tube 2.

[0036] See also Figures 4 to 6 As shown, the outer tube 1 comprises a first tube body 11, with rubber-retaining grooves 12 positioned opposite each other in the middle of the first tube body 11. These grooves not only reduce the weight of the assembly but also ensure ample space for rubber during deformation, minimizing heat generation caused by rubber compression and deformation. A first constriction 16 is positioned near the upper end of the first tube body 11, and a second constriction 17 is positioned near the lower end. These constrictions reduce axial rubber displacement, enhance axial rigidity, and effectively reduce bushing deflection. Specifically, the upper opening of the first tube body 11 is bent horizontally outward to form a horizontal flange 13. Anti-misalignment stop grooves 14 are positioned along the edges of the flange 13. These stop grooves not only prevent assembly errors and prevent rotation during assembly, but also provide positioning and anti-misalignment functions during the vulcanization process during manufacturing. The lower opening of the first tube body 11 is bent outward at an angle to form an outer flange 15. The rubber-retaining groove 12 is rectangular and positioned opposite the bulge 22. The rubber body 3 is provided with a recessed portion corresponding to the position of the rubber containing groove 12 .

[0037] See also Figures 7 to 9 As shown, the inner tube 2 includes a second tube body 21, and a bulge portion 22 is provided in the middle of the second tube body 21. The bulge design can effectively increase the rubber volume while ensuring the outer diameter of the bushing and the radial stiffness of the assembly, which has obvious advantages in improving the life of the assembly. Specifically, an inverted cone 23 is provided at both ends of the inner tube 2. The inverted cone design has obvious advantages in improving the axial stiffness and reducing the deflection of the bushing. Anti-slip grooves 24 are provided at the two end surfaces of the inner tube 2, which can effectively increase the necking torque of the bolt installation. The openings at both ends of the inner tube 2 adopt an internal expansion process, which can reduce the axial rubber displacement and improve the axial stiffness. Specifically, the two ends of the inner tube 2 extend from the outer tube 1.

[0038] In the description of the specification, reference to the terms "one embodiment," "preferably," "example," "specific example," 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 utility model. The schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

[0039] Through the description of the above structure and principle, technical personnel in the relevant technical field should understand that the present invention is not limited to the above specific implementation methods, and improvements and substitutions based on the present invention using the well-known technology in the field all fall within the scope of protection of the present invention and should be defined by the claims.

Claims

1. A bushing with both high reliability and excellent performance, comprising an outer tube (1), an inner tube (2), and a rubber body (3) arranged between the outer tube (1) and the inner tube (2), characterized in that: The outer tube (1) comprises a first tube body (11), and the first tube body (11) is provided with glue-containing grooves (12) on both sides of the middle thereof, a first constricted portion (16) is provided near the upper end of the first tube body (11), and a second constricted portion (17) is provided near the lower end of the first tube body (11); the inner tube (2) comprises a second tube body (21), and the middle portion of the second tube body (21) is provided with a bulge portion (22).

2. The bushing with high reliability and excellent performance according to claim 1, characterized in that: The upper end opening of the first tube (11) is bent horizontally outward to form a horizontal flange (13).

3. The bushing with high reliability and excellent performance according to claim 2, characterized in that: An anti-error limiting groove (14) is provided at the edge of the horizontal flange (13).

4. The bushing with high reliability and excellent performance according to claim 1, characterized in that: The lower end opening of the first tube (11) is bent outwardly to form an outer flange (15).

5. The bushing with high reliability and excellent performance according to claim 1, characterized in that: Inverted cones (23) are respectively provided at both ends of the inner tube (2).

6. The bushing with high reliability and excellent performance according to claim 1, characterized in that: Anti-slip grooves (24) are respectively provided on both end surfaces of the inner tube (2).

7. The bushing with high reliability and excellent performance according to claim 1, characterized in that: The openings at both ends of the inner tube (2) are formed using an internal expansion process.

8. The bushing with high reliability and excellent performance according to claim 1, characterized in that: The glue containing groove (12) is of rectangular structure and is arranged opposite to the bulge portion (22).

9. The bushing with high reliability and excellent performance according to claim 1, characterized in that: Both ends of the inner tube (2) extend from the outer tube (1).

10. The bushing with high reliability and excellent performance according to claim 1, characterized in that: The rubber body (3) is provided with a recessed portion corresponding to the position of the rubber containing groove (12).

Images