Opening lining for whole automobile

Abstract

The utility model belongs to the technical field of bushing production, and particularly relates to an open bushing for a whole automobile, which comprises a bushing inner pipe, a bushing outer pipe sleeved outside the bushing inner pipe and an elastic layer arranged between the bushing outer pipe and the bushing inner pipe, a plurality of frameworks are arranged on the outer wall of the bushing inner pipe along the axis of the bushing inner pipe in a surrounding manner, and the framework is arranged on the outer wall of the bushing inner pipe. Therefore, the axial rigidity and the radial rigidity of the bushing are improved. The arc-shaped framework is arranged between the lining outer pipe and the lining inner pipe in a surrounding mode, so that the radial rigidity of the lining is improved more comprehensively through the radian of the framework; and secondly, the framework is also embedded into the elastic layer, so that the contact area between the lining inner pipe and the elastic layer is increased, the vulcanization area is increased, the axial rigidity of the lining is further improved, and the product quality of the lining is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bushings, and in particular relates to an open bushing for a complete vehicle. Background Art

[0002] The open bushing is an annular metal sleeve, which is mainly used to protect the intake and exhaust pipes and suspension of automobile engines, and plays the role of shock absorption, noise reduction and comfort improvement.

[0003] For example, an open bushing assembly for automobile suspension, as disclosed in announcement number CN202402537U, is disclosed. Its technical solution is as follows: an open bushing assembly for automobile suspension, comprising an inner shaft, a rubber open bushing, and a ring sleeve. The inner shaft and the rubber open bushing are tightly fitted with an interference fit, and ring sleeves are installed at both ends of the inner shaft. The rubber open bushing comprises an outer tube, an intermediate tube, and an inner tube that are sequentially mounted. An elastic layer is provided between the outer tube and the intermediate tube, between the intermediate tube and the inner tube, and on the inner wall of the inner tube. The outer tube, elastic layer, intermediate tube, elastic layer, inner tube, and elastic layer are fixedly connected together by vulcanization molding, and the rubber open bushing is provided with a trapezoidal open through groove on its circumference. This utility model has the advantages of increased overall strength and rigidity, advanced processing technology, excellent shock absorption and buffering effect, increased tightness during assembly, good flexibility, and a long practical life.

[0004] In the above-mentioned prior art, an annular intermediate tube is added between the inner and outer sleeves of the bushing to increase the radial stiffness of the bushing. Although this solution improves the positive radial stiffness of the bushing to a certain extent, it will not be very effective if the inner sleeve of the bushing is axially offset.

[0005] In view of this, the utility model provides an open bushing for a complete vehicle to solve the above problem. Utility Model Content

[0006] In response to the above problems, the present invention provides the following technical solutions: an open bushing for a complete vehicle, comprising a bushing inner tube, a bushing outer tube sleeved outside the bushing inner tube, and an elastic layer arranged between the bushing outer tube and the bushing inner tube. The outer wall of the bushing inner tube is provided with a plurality of skeletons along its axis to improve the axial and radial stiffness of the bushing.

[0007] As a preferred embodiment of the open bushing for a complete vehicle of the utility model, the elastic layer is a rubber layer.

[0008] As a preferred embodiment of the open bushing for a complete vehicle of the present invention, the skeleton is arc-shaped and embedded in the elastic layer.

[0009] As a preferred embodiment of the open bushing for a complete vehicle of the present invention, both ends of the skeleton are integrally connected to the outer wall of the bushing inner tube, and the transverse center line thereof is located on the same straight line as the transverse center line of the bushing outer tube.

[0010] As a preferred embodiment of the open bushing for a complete vehicle of the utility model, the curvature of the skeleton is 30° to 50°.

[0011] As a preferred embodiment of the open bushing for a complete vehicle of the utility model, the angle of the skeleton is 1 / 5 or 1 / 8.

[0012] As a preferred embodiment of the open bushing for a complete vehicle of the utility model, a through hole 1 is provided inside the outer tube of the bushing for accommodating the inner tube of the bushing and the elastic layer.

[0013] As a preferred embodiment of the open bushing for a complete vehicle of the utility model, a second through hole is further provided inside the inner tube of the bushing.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model provides an arc-shaped frame arranged around the outer tube of the bushing and the inner tube of the bushing, so that the radial rigidity of the bushing is more comprehensively improved through the curvature of the frame;

[0016] Secondly, since the skeleton is also embedded in the elastic layer, the contact area between the inner tube of the bushing and the elastic layer is increased, thereby increasing the vulcanization area and further improving the axial stiffness of the bushing, thereby effectively improving the product quality of the bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the top structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0023] In the figure: 1, outer tube of bushing; 11, through hole 1; 2, inner tube of bushing; 21, through hole 2; 22, skeleton; 3, elastic layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model relates to an open bushing for a complete vehicle, such as Figure 1-Figure 3 As shown, it includes a bushing inner tube 2, a bushing outer tube 1 and an elastic layer 3. The inner part of the bushing outer tube 1 is provided with a through hole 11 for accommodating the bushing inner tube 2 and the elastic layer 3. The inner part of the bushing inner tube 2 is also provided with a through hole 21 for connecting with parts on the car. The bushing outer tube 1 is sleeved on the outer part of the bushing inner tube 2. The elastic layer 3 is a rubber layer, which is provided between the bushing outer tube 1 and the bushing inner tube 2 and is connected to the bushing outer tube 1 and the bushing inner tube 2 through a vulcanization process.

[0026] like Figure 4-Figure 5 As shown, the outer wall of the liner inner tube 2 is surrounded by a plurality of vertically arranged arc-shaped skeletons 22 along its axis. When the liner outer tube 1 and the liner inner tube 2 are connected to the elastic layer 3, the skeletons 22 are embedded in the elastic layer 3. In this embodiment, eight skeletons 22 are arranged at equal intervals. The number of skeletons 22 can also be selected and produced adaptively according to actual needs. Figure 4 As shown, the virtual lines connecting the outer edges of the skeleton 22 are circular, so that the skeleton 22 is arc-shaped in the radial direction. At the same time, combined with its axial arc structure, it can effectively improve the axial stiffness and radial stiffness of the inner tube 2 of the bushing when it is offset.

[0027] In addition, since the skeleton 22 is embedded in the elastic layer 3, the contact area between the inner tube 2 of the bushing and the elastic layer 3 can be increased, thereby increasing the vulcanization area, making the axial pulling force of the bushing greater, and further improving its axial stiffness.

[0028] Secondly, both ends of the skeleton 22 are integrally connected to the outer wall of the bushing inner tube 2, and its transverse center line is on the same straight line as the transverse center line of the bushing outer tube 1, so that the skeleton 22 is uniformly stressed in the radial direction, which can effectively improve the service life of the bushing.

[0029] Furthermore, the curvature of the skeleton 22 is 30° to 50°, preferably 45°, and its sagittal angle is 1 / 5 or 1 / 8. The above arrangement can effectively improve the stability of the skeleton 22, so that it can better maintain the ability to improve the radial and axial stiffness of the bushing.

[0030] In summary, when the inner tube 2 of the bushing is offset in the radial or axial directions, the arc-shaped structure of the skeleton 22 in the radial and axial directions and the increased vulcanization area of the skeleton 22 can improve the support for the inner tube 2 of the bushing, thereby effectively improving the radial and axial stiffness of the bushing.

[0031] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An open bushing for a complete vehicle, comprising a bushing inner tube (2), a bushing outer tube (1) sleeved outside the bushing inner tube (2), and an elastic layer (3) arranged between the bushing outer tube (1) and the bushing inner tube (2), characterized in that: The outer wall of the bushing inner tube (2) is provided with a plurality of skeletons (22) around its axis to improve the axial and radial rigidity of the bushing.

2. The open bushing for a complete vehicle according to claim 1, characterized in that: The elastic layer (3) is a rubber layer.

3. The open bushing for a complete vehicle according to claim 2, characterized in that: The skeleton (22) is arc-shaped and embedded in the elastic layer (3).

4. The open bushing for a complete vehicle according to claim 3, characterized in that: The two ends of the skeleton (22) are integrally connected to the outer wall of the bushing inner tube (2), and the transverse center line thereof is located on the same straight line as the transverse center line of the bushing outer tube (1).

5. The open bushing for a complete vehicle according to claim 4, characterized in that: The curvature of the skeleton (22) is 30° to 50°.

6. The open bushing for a complete vehicle according to claim 5, characterized in that: The angle of the skeleton (22) is 1 / 5 or 1 / 8.

7. An open bushing for a complete vehicle according to any one of claims 1 to 6, characterized in that: A through hole (11) is provided inside the bushing outer tube (1) for accommodating the bushing inner tube (2) and the elastic layer (3).

8. The open bushing for a complete vehicle according to claim 6, characterized in that: A second through hole (21) is also provided inside the liner inner tube (2).

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