Impact-resistant composite bushing for automobile

Abstract

The utility model provides an impact-resistant composite bushing for an automobile, which comprises a lining pipe and a rubber sleeve, the rubber sleeve is sleeved outside the lining pipe, two ends of the lining pipe are provided with limiting rings, the outer surface of each limiting ring is provided with a plurality of inserting holes at equal intervals, rubber strips are inserted in the inserting holes, and the limiting rings are sleeved with fixing rings. According to the impact-resistant composite lining for the automobile, when the outer lining pipe impacts the rubber sleeve, the rubber sleeve is limited by the limiting ring, force and impact on the rubber sleeve are reduced, the impact absorbed by the limiting ring is absorbed by the rubber strip, the rubber strip can be pulled out after the fixing ring is pulled open when the rubber strip is damaged, and replacement is very convenient; the rubber strip is extruded to the upper side and the lower side under the action of the transverse tip in the inserting hole and is fixed by matching with the fixing ring, so that the rubber strip is firmly fixed in the inserting hole and is not easy to fall off.

Description

TECHNICAL FIELD

[0001] The utility model relates to bush technology field, concretely is a kind of impact-resistant composite bush for automobile. BACKGROUND

[0002] Bush has important application in automobile, can play the role of gasket and sealing leakproof, can protect simultaneously assembled parts, avoid the abrasion of parts, and reduce the cost of replacing parts.For example, application No.: CN202320487465.9, "a composite bush", including inner bushing;Outer bushing, the outer bushing is sleeved in the inner bushing;Buffer part, the buffer part is located between the inner bushing and the outer bushing;Limiting structure, the limiting structure is located between the inner bushing and the outer bushing.The patent is limited by the displacement size of outer bushing by setting limiting portion at the both ends of buffer part, to reduce the deformation amount of buffer part, the "force" transferred to buffer part is reduced, but the "force" reduced is actually absorbed by limiting portion, the service life of buffer part is extended but the service life of limiting portion is shortened, and the overall service time of bush is still not ideal.

[0003] To solve the above problems, the case is born. CONTENT OF UTILITY MODEL

[0004] (I) technical problem solved

[0005] The utility model aims at providing a kind of impact-resistant composite bush for automobile, to solve the problems raised in the above background technology.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model is realized by the following technical scheme: a kind of impact-resistant composite bush for automobile, including inner bushing and rubber sleeve, the rubber sleeve is sleeved in inner bushing, the both ends of the inner bushing are equipped with limiting ring, the outer surface of the limiting ring is equipped with several insertion holes at equal intervals, the insertion hole is inserted with rubber strip, the limiting ring is equipped with fixed ring outside.

[0008] Preferably, the length of the rubber strip is greater than the depth of the insertion hole, the fixed ring is provided with a fixing hole, one end of the rubber strip is inserted into the insertion hole, and the other end is inserted into the fixing hole.

[0009] Preferably, the cross section of the fixing hole is gradually changed, the cross section area near the inner side of the fixed ring is greater than the cross section area near the outer side of the fixed ring, and the cross section of one end of the rubber strip inserted into the fixing hole is consistent with the fixing hole.

[0010] Preferably, the socket is perpendicular to the axis of the inner liner tube, a horizontal tip is provided at the bottom of the socket, the bottom space of the socket expands toward both sides of the horizontal tip, and a vertical groove is provided at one end of the rubber strip inserted into the socket.

[0011] Preferably, the limiting ring, rubber strip and fixing ring are all made of rubber, but the hardness of the limiting ring is greater than that of the rubber strip and greater than that of the fixing ring, and an outer lining tube is provided outside the rubber sleeve.

[0012] (3) Beneficial effects

[0013] After adopting the above technical scheme, the utility model has the following advantages compared with the prior art: the utility model is an impact-resistant composite bushing for automobiles. When the outer liner hits the rubber sleeve, the rubber sleeve is restricted by the limiting ring, thereby reducing the force and impact received by the rubber sleeve. The impact absorbed by the limiting ring is absorbed by the rubber strip. When the rubber strip is damaged, it can be replaced by simply pulling open the fixing ring and pulling out the rubber strip, which is very convenient to replace. The rubber strip is squeezed to the upper and lower sides by the action of the horizontal tip in the socket, and is fixed with the fixing ring. The rubber strip is firmly fixed in the socket and is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model;

[0015] Figure 2 It is a partial cross-sectional schematic diagram of the utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the splitting;

[0017] Figure 4 Schematic diagram of the rubber strip;

[0018] In the figure: 1 inner lining tube, 2 rubber sleeve, 3 limiting ring, 31 plug hole, 32 horizontal tip, 4 rubber strip, 41 vertical groove, 5 fixing ring, 51 fixing hole. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below through the accompanying drawings and examples.

[0020] The present invention provides an impact-resistant composite bushing for automobiles. Figures 1-4 As shown, it includes an inner liner tube 1 and a rubber sleeve 2. The rubber sleeve 2 is sleeved on the outer surface of the inner liner tube 1. The inner liner tube 1 is provided with a limiting ring 3 at both ends. The outer surface of the limiting ring 3 is provided with a plurality of insertion holes 31 at equal intervals. The insertion holes 31 are inserted with rubber strips 4. The outer surface of the limiting ring 3 is provided with a fixing ring 5. The limiting rings 3 at both ends limit the rubber sleeve 2 and transmit the absorbed vibration to the rubber strip 4 in the insertion holes 31. When the rubber strip 4 is worn, it only needs to be replaced.

[0021] Reference AttachmentFigures 2-4 The rubber strip 4 has a length greater than the depth of the insertion hole 31, the fixing ring 5 is provided with a fixing hole 51, one end of the rubber strip 4 is inserted into the insertion hole 31, and the other end is inserted into the fixing hole 51, the cross section of the fixing hole 51 is gradually changed, the fixing ring 5 is better fixed to the rubber strip 4, so that the rubber strip 4 cannot be pulled out of the fixing hole 51, the cross section area near the inner side of the fixing ring 5 is greater than the cross section area near the outer side of the fixing ring 5, and the cross section of the one end of the rubber strip 4 inserted into the fixing hole 51 is changed in accordance with the fixing hole 51.

[0022] The utility model discloses a rubber sleeve Figures 2-4 The insertion hole 31 is perpendicular to the axial direction of the inner liner pipe 1, the bottom of the insertion hole 31 is provided with a horizontal sharp 32, the space of the bottom of the insertion hole 31 is expanded to both sides of the horizontal sharp 32, the one end of the rubber strip 4 inserted into the insertion hole 31 is provided with a vertical groove 41, after the rubber strip 4 is inserted into the insertion hole 31, the vertical groove 41 is affected by the horizontal sharp 32, so that the one end of the rubber strip 4 is extruded, and the fixing firmness of the rubber strip 4 is further improved.

[0023] It should be noted that the limiting ring 3, the rubber strip 4 and the fixing ring 5 are all made of rubber, but the hardness of the limiting ring 3 is greater than that of the rubber strip 4, and the hardness of the rubber strip 4 is greater than that of the fixing ring 5, the fixing ring 5 has the best tensile property, the fixing ring 5 is finally pulled apart and sleeved on the limiting ring 3 when the rubber strip 4 is fixed, and the rubber sleeve 2 is provided with an outer liner pipe (not shown in the figure).

[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and deformations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant composite bushing for automobiles, comprising an inner lining tube (1) and a rubber sleeve (2), wherein the rubber sleeve (2) is sleeved outside the inner lining tube (1), and both ends of the inner lining tube (1) are provided with limiting rings (3), characterized in that: A plurality of insertion holes (31) are evenly spaced on the outer surface of the limiting ring (3), a rubber strip (4) is inserted into the insertion hole (31), and a fixing ring (5) is provided on the outer cover of the limiting ring (3).

2. The impact-resistant composite bushing for automobiles according to claim 1, characterized in that: The length of the rubber strip (4) is greater than the depth of the insertion hole (31); a fixing hole (51) is provided on the fixing ring (5); one end of the rubber strip (4) is inserted into the insertion hole (31), and the other end is inserted into the fixing hole (51).

3. The impact-resistant composite bushing for automobiles according to claim 2, characterized in that: The cross section of the fixing hole (51) is gradual, with the cross section area near the inner side of the fixing ring (5) being larger than the cross section area near the outer side of the fixing ring (5), and the cross section of one end of the rubber strip (4) inserted into the fixing hole (51) changes in accordance with that of the fixing hole (51).

4. The impact-resistant composite bushing for automobiles according to claim 1, characterized in that: The insertion hole (31) is perpendicular to the axial direction of the inner lining tube (1), a horizontal tip (32) is provided at the bottom of the insertion hole (31), the bottom space of the insertion hole (31) is expanded to both sides of the horizontal tip (32), and a vertical groove (41) is provided at one end of the rubber strip (4) inserted into the insertion hole (31).

5. The impact-resistant composite bushing for automobiles according to claim 2, characterized in that: The limiting ring (3), rubber strip (4) and fixing ring (5) are all made of rubber, but the hardness of the limiting ring (3) is greater than that of the rubber strip (4) and greater than that of the fixing ring (5). An outer lining tube is provided outside the rubber sleeve (2).

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