Novel totally-enclosed shock absorber of three-wheeled automobile

Abstract

A novel totally-closed shock absorber for a three-wheeled automobile comprises a shock absorption cylinder and a buffer column, a guide sleeve is fixed to one end of an inner cavity of the shock absorption cylinder, the buffer column is arranged in the guide sleeve in a sliding mode, the buffer column is sleeved with a corrugated dust cover, and a first sleeve is arranged at one end of the dust cover; the first sleeve is fixedly connected to the end of the buffer column in a sleeving mode and is in interference fit with the buffer column, and a second sleeve is arranged at the other end of the dust cover and is fixedly connected into the mounting groove of the damping cylinder in a clamped mode; an oil seal assembly is arranged on one side of the guide sleeve and located between the damping cylinder and the dustproof cover, and a dustproof sealing assembly is arranged on the side, away from the guide sleeve, of the oil seal assembly. And a plurality of air pressure balance holes are formed in the dust cover. Due to the connection mode of the first sleeve and the second sleeve, the installation firmness of the damping cylinder is improved, and the continuity of the dustproof effect is guaranteed; meanwhile, the dustproof cover is matched with the dustproof sealing assembly and the oil sealing assembly, and the good dustproof effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a shock absorber technical field, specifically, a new type of full-closed shock absorber of three -wheel car. BACKGROUND

[0002] Three -wheel car shock absorber is a key component for three -wheel car, and its main function is to restrain the oscillation when spring shock absorption bounces back and the impact from the road, thereby improving the stability and comfort of three -wheel car driving.

[0003] The three -wheel car shock absorber currently used has the following defects: because three -wheel car shock absorber is exposed to the outdoors for a long time, therefore dust, dirt and other impurities are adsorbed on the buffer column assembly, and the surface of the buffer column is prone to rust, which will affect the movement of the buffer column and reduce the buffering effect of the shock absorber.

[0004] In the prior art, a dust cover is installed to solve the above problems, but the installation mode of the dust cover is relatively complex, and it is not firm, and there is a gap between the dust cover and the shock absorbing cylinder, which affects the dustproof effect. This is the deficiency of the prior art. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the background art, and further provides a new type of full-closed shock absorber of three -wheel car.

[0006] The utility model solves the technical problems by adopting the technical scheme that a new type of full-closed shock absorber of three -wheel car, including shock absorbing cylinder and buffer column, the inner chamber of shock absorbing cylinder is fixed with guide sleeve at one end, the buffer column is slidably arranged in the guide sleeve, the buffer column is externally sleeved with corrugated dust cover, one end of the dust cover is provided with first sleeve pipe, the first sleeve pipe is sleeved and fixed at the end of the buffer column and is in interference fit with the buffer column, the other end of the dust cover is provided with second sleeve pipe, and the second sleeve pipe is clamped and fixed in the mounting groove of the shock absorbing cylinder, one side of the guide sleeve and between the shock absorbing cylinder and the dust cover is provided with oil seal assembly, and one side, away from the guide sleeve, of the oil seal assembly is provided with dustproof sealing assembly, a plurality of air pressure balance holes are formed in the dust cover.

[0007] Further improvement of the utility model has that the end of the second sleeve pipe is provided with a snap ring, and the snap ring is matched with the mounting groove.

[0008] Further improvement of the utility model has that the dust cover, the first sleeve pipe, the second sleeve pipe and the snap ring are integrally made.

[0009] Further improvement of the utility model has that the end, close to the shock absorbing cylinder, of the buffer column is provided with a shaft retaining ring.

[0010] The further improvement of the utility model still has, the hole of one end of the guide bush close to the damping cylinder is provided with a baffle ring.

[0011] The further improvement of the utility model still has, the dustproof sealing assembly includes a dustproof ring and a dustproof oil seal, the dustproof oil seal is sleeved on the buffer column, and a dustproof oil seal close to the guide bush is provided with a dustproof ring for preventing dust from entering the dustproof cover.

[0012] The further improvement of the utility model still has, the dustproof oil seal is externally sleeved with an oil seal pressing ring.

[0013] The further improvement of the utility model still has, the oil seal assembly includes an oil seal and a lip-shaped sealing ring, the oil seal is fixed between the damping cylinder and the buffer column, and the lip-shaped sealing ring is fixed in the opening of the oil seal.

[0014] The further improvement of the utility model still has, the dustproof cover, the first sleeve pipe, the second sleeve pipe and the snap ring adopt a material of ethylene propylene diene rubber.

[0015] Compared with the prior art, the utility model has the advantages that: the first sleeve pipe and the second sleeve pipe are arranged at the two ends of the dustproof cover respectively, the first sleeve pipe is connected with the buffer column in interference fit, the second sleeve pipe is fixed in the mounting groove of the damping cylinder in clamping, the connecting mode increases the mounting firmness of the damping cylinder, even if the dustproof cover continuously expands and contracts during work, the dustproof cover will not fall off, and the continuity of the dustproof effect is ensured; meanwhile, the dustproof cover cooperates with the dustproof sealing assembly and the oil seal assembly, and good dustproof effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the embodiment of the utility model;

[0017] Figure 2 It is the structural schematic diagram of the dustproof cover;

[0018] Figure 3 It is the structural schematic diagram of the damping cylinder;

[0019] Figure 4 It is Figure 1 It is the enlarged view of structure in A;

[0020] Figure 5 It is Figure 1 It is the enlarged view of structure in B.

[0021] In the figure, 1 is a damping cylinder, 11 is a mounting groove, 2 is a buffer column, 3 is a guide sleeve, 4 is a dust cover, 41 is a first sleeve, 42 is a second sleeve, 43 is a snap ring, 5 is a dustproof sealing assembly, 51 is a dustproof oil seal, 52 is a dust ring, 53 is an oil seal pressing ring, 6 is an oil seal assembly, 61 is an oil seal, 62 is a lip seal ring, 7 is a hole retainer, 8 is a shaft retainer. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. The utility model will be further described in combination with the drawings and embodiments:

[0023] As Figures 1-5 shown, a new type of fully-closed shock absorber of a three-wheeled vehicle comprises a damping cylinder 1 and a buffer column 2. One end of the inner cavity of the damping cylinder 1 is fixed with a guide sleeve 3. The buffer column 2 is slidably arranged in the guide sleeve 3. The buffer column 2 is externally sleeved with a corrugated dust cover 4.

[0024] In order to firmly install the dust cover 4, the utility model is provided with a first sleeve 41 at one end of the dust cover 4. The first sleeve 41 is sleeved and fixed at the end of the buffer column 2 and is in interference fit with the buffer column 2. The other end of the dust cover 4 is provided with a second sleeve 42. The second sleeve 42 is clamped and fixed in the mounting groove 11 of the damping cylinder 1.

[0025] Specifically, the end of the second sleeve 42 is provided with a snap ring 43. The snap ring 43 cooperates with the mounting groove 11. The snap ring 43 is clamped in the mounting groove 11. The installation process is simple. The snap ring 43 is not easy to come off and is firmly and reliably fixed.

[0026] Specifically, the diameter of the end of the buffer column 2 is φ20. In order to realize interference connection with the buffer column 2, the inner diameter of the first sleeve 41 is set to φ25.

[0027] Further, the dust cover 4, the first sleeve 41, the second sleeve 42 and the snap ring 43 are integrally made. The overall strength of the dust cover 4 is improved. Meanwhile, the dust cover 4, the first sleeve 41, the second sleeve 42 and the snap ring 43 are made of ethylene-propylene-diene rubber. The dust cover 4 has high elasticity, wear resistance and corrosion resistance. The installation, disassembly and replacement of the dust cover 4 are facilitated.

[0028] Because the dust cover 4 inside and outside air pressure is different due to the shock absorber working process, this phenomenon can make dust cover 4 deformation damage, and then affect the shock absorber work, the utility model discloses a plurality of air pressure balance hole is arranged on the dust cover 4, these air pressure balance hole can keep the dust cover 4 inside and outside air pressure keeps consistent, guarantees the normal work of shock absorber.

[0029] Further, in order to improve the sealing performance of dust cover 4, the utility model discloses an oil seal assembly 6 is arranged on the one side of guide bush 3 and is located between shock absorbing cylinder 1 and dust cover 4, the oil seal assembly 6 is provided with dustproof sealing assembly 5 away from the one side of guide bush 3, specifically, the oil seal assembly 6 includes oil seal 61 and lip seal ring 62, the oil seal 61 is fixed between shock absorbing cylinder 1 and buffer column 2, and the lip seal ring 62 is fixed in the opening of oil seal 61. Dustproof sealing assembly 5 includes dustproof ring 52 and dustproof oil seal 51, the dustproof oil seal 51 is sleeved on buffer column 2, and the dustproof oil seal 51 is provided with dustproof ring 52 on the side close to guide bush.

[0030] In order to make dustproof oil seal 51 firmly fixed on buffer column 2, the utility model discloses an oil seal pressing ring 53 is sleeved and fixed on the outside of dustproof oil seal 51.

[0031] Further, the one end of buffer column 2 close to shock absorbing cylinder 1 is provided with shaft baffle 8, and the stroke of buffer column 2 is limited.

[0032] Further, the one end of guide bush 3 close to shock absorbing cylinder 1 is provided with hole baffle 7, and the position of guide bush 3 in shock absorbing cylinder 1 is fixed.

[0033] The basic principle, main features and advantages of the utility model are shown and described.The person skilled in the art should understand that the utility model is not limited by the above embodiment, and the above embodiment and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed for protection.The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of fully closed shock absorber for a three-wheeled vehicle, comprising a shock absorber cylinder and a buffer column, one end of the inner cavity of the shock absorber cylinder is fixed with a guide sleeve, and the buffer column is slidably arranged in the guide sleeve, characterized in that, The outer part of the buffer column is sleeved with a corrugated dust cover, one end of the dust cover is provided with a first sleeve, the first sleeve is sleeved and fixed at the end of the buffer column and is in interference fit with the buffer column, the other end of the dust cover is provided with a second sleeve, the second sleeve is clamped and fixed in the mounting groove of the shock-absorbing cylinder; an oil seal assembly is arranged on one side of the guide sleeve and between the shock-absorbing cylinder and the dust cover, the oil seal assembly is provided with a dustproof sealing assembly away from the side of the guide sleeve; a plurality of air pressure balance holes are arranged on the dust cover.

2. The new type of full-closed shock absorber of the three-wheeled vehicle according to claim 1, characterized in that, The end of the second sleeve is provided with a snap ring, and the snap ring is matched with the mounting groove.

3. The new type of full-closed shock absorber of the three-wheeled vehicle according to claim 2, characterized in that, The dust cover, the first sleeve, the second sleeve and the snap ring are integrally manufactured.

4. The new type of full-closed shock absorber of the three-wheeled vehicle according to claim 1, characterized in that, The end of the buffer column close to the shock-absorbing cylinder is provided with a shaft retainer.

5. The new type of full-closed shock absorber of the three-wheeled vehicle according to claim 1, characterized in that, The end of the guide sleeve close to the shock-absorbing cylinder is provided with a hole retainer.

6. The new type of full-closed shock absorber of the three-wheel vehicle according to any one of claims 1-3, characterized in that, The dustproof sealing assembly comprises a dustproof ring and a dustproof oil seal, the dustproof oil seal is sleeved on the buffer column, and the dustproof oil seal is provided with a dustproof ring for preventing dust from entering the inside of the dust cover.

7. The new type of full-closed shock absorber of the three-wheeled vehicle according to claim 6, characterized in that, The outer part of the dustproof oil seal is sleeved and fixed with an oil seal pressing ring.

8. The new type of full-closed shock absorber of the three-wheel vehicle according to any one of claims 1-3, characterized in that, The oil seal assembly comprises an oil seal and a lip-shaped sealing ring, the oil seal is fixed between the shock-absorbing cylinder and the buffer column, and the lip-shaped sealing ring is fixed in the opening of the oil seal.

9. The new type of full-closed shock absorber of the three-wheel vehicle according to claim 3, characterized in that, The materials of the dust cover, the first sleeve, the second sleeve and the snap ring are EPDM.

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