Eccentric cylinder of all terrain vehicle

By designing an integrated eccentric cylinder for beach buggies, the problem of unstable power transmission caused by chain drive slack was solved, achieving stability and ease of adjustment for chain drive.

CN223905234UActive Publication Date: 2026-02-13YONGKANG RONGFA VEHICLE IND CO LTD
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Patent Information

Application Number
CN202520752459.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-02-13
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

The existing chain drive of ATVs loosens after prolonged use, resulting in unstable power transmission, and the existing fine-tuning method is not stable enough.

Method used

Design an integrated eccentric cylinder for beach buggies, including an inner cylinder and an outer cylinder. The outer cylinder is provided with a limiting groove and an adjustment groove, and the chain can be stably adjusted by adjusting the markings.

Benefits of technology

It achieves stability and ease of adjustment for the chain drive of the ATV, making installation and adjustment more convenient.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an eccentric cylinder of a dune buggy, which comprises an inner cylinder and two outer cylinders, the outer cylinders are respectively arranged at two ends of the inner cylinder, the inner cylinder and the outer cylinders are eccentrically arranged, one outer cylinder is provided with a limiting groove II, the other outer cylinder is provided with an adjusting groove, and the eccentric cylinder is integrally processed, is more convenient to install and adjust, and is more stable to adjust.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sand vehicle technical field, specifically is a sand vehicle eccentric cylinder. BACKGROUND

[0002] The sand vehicle is not influenced by the terrain environment, and is more and more welcomed by people, at present, chain transmission is the most main transmission mode of sand vehicle rear wheel, and the chain will appear gradually slack after long time use, so that the power transmission of vehicle is affected, and even chain drop can appear seriously.Therefore, the distance between power wheel and rear wheel needs to be adjusted to adjust the tightness of chain, so as to ensure the stability of chain transmission.At present, the micro-adjustment mostly adopts the way of adjusting in the oblique line direction of bolt structure, and the stability after adjustment is poor. SUMMARY

[0003] In view of the defects of the existing chain adjustment mode, the technical problem to be solved by the utility model is to provide an eccentric cylinder of sand vehicle which is integrally processed, convenient to install, convenient to adjust and stable.

[0004] In order to realize the above-mentioned purpose, according to one aspect of the utility model, the utility model is realized through the following technical measures: an eccentric cylinder of sand vehicle, including inner tube, two outer tubes, the inner tube is equipped with center hole, and the both ends of center hole are equipped with bearing mounting part, and the one end of inner tube is equipped with coaxial connecting part, the connecting part is equipped with brake assembly connecting part and limit slot I, the outer tube is arranged at the both ends of inner tube respectively, and the inner tube and outer tube are arranged eccentrically, the one outer tube is equipped with limit slot II, and the other outer tube is equipped with adjusting slot.

[0005] Further, the outer tube at adjusting slot is equipped with adjusting mark.

[0006] Further, the adjusting mark is gradually widened slot.

[0007] Further, the eccentric cylinder is integrally processed and formed.

[0008] Compared with the prior art, the utility model has the advantages that the eccentric cylinder of sand vehicle is integrally processed, and the installation and adjustment are more convenient and stable. BRIEF DESCRIPTION OF DRAWINGS

[0009] The drawings constituting a part of the utility model are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation to the utility model.In the drawings:

[0010] Figure 1 It is the whole structure schematic view of the eccentric cylinder of sand vehicle described in the utility model;

[0011] Figure 2 The utility model discloses a structure diagram of the adjusting groove of the eccentric cylinder of a sand vehicle.

[0012] Mark explanation: 1, inner tube, 2, outer tube, 3, center hole, 4, bearing mounting portion, 5, connecting portion, 6, brake assembly connecting portion, 7, limit groove I, 8, limit groove II, 9, adjusting groove, 10, adjusting mark. Specific embodiments

[0013] The utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0014] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0015] Please refer to Figure 1 The eccentric cylinder of the sand vehicle provided by the embodiment comprises an inner tube 1 and two outer tubes 2. The inner tube 1 is provided with a center hole 3 for mounting a rear wheel shaft. The rear wheel shaft passes through the center hole 3 of the eccentric cylinder and is rotationally connected to the eccentric cylinder through a bearing. The two ends of the center hole 3 are provided with bearing mounting portions 4. One end of the inner tube 1 is provided with a coaxial connecting portion 5 extending outward. The connecting portion 5 is provided with a brake assembly connecting portion 6 and a limit groove I 7. The outer tubes 2 are arranged at the two ends of the inner tube 1. The inner tube 1 and the outer tubes 2 are eccentrically arranged. The outer ring of the eccentric cylinder has a smaller middle diameter, which reduces the use of materials and makes it easier to adjust the rotation. One of the outer tubes 2 is provided with a limit groove II 8 for limiting the left-right displacement of the eccentric cylinder. The other outer tube 2 is provided with a plurality of evenly distributed adjusting grooves 9 and adjusting marks 10. The adjusting marks 10 can be gradually widening grooves or scales. The embodiment preferably has grooves with gradually increasing widths.

[0016] The eccentric cylinder of the sand vehicle provided by the embodiment is installed in the following manner. The eccentric structure of the outer ring of the eccentric cylinder is sleeved with a rear fork of a vehicle frame. The rear fork covers the outer ring of the eccentric cylinder and limits the left-right displacement of the outer ring through the limit groove of the outer ring. The eccentric cylinder is fixed through bolts.

[0017] The eccentric cylinder of the sand vehicle provided by the embodiment needs to be adjusted, the fixing bolt is loosened, a special tool is connected to the adjusting groove 9 to rotate the whole eccentric cylinder to adjust the position, the bolt is tightened to fix after the adjustment is finished, the rear fork covers the eccentric cylinder, and only rotational displacement is generated when the rear fork and the eccentric cylinder are adjusted.

[0018] The above merely provides preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An eccentric cylinder of an ATV, characterized by: Including inner cylinder (1), two outer cylinder (2), the inner cylinder (1) is equipped with center hole (3), center hole (3) both ends are equipped with bearing mounting portion (4), the inner cylinder (1) one end is equipped with coaxial connecting portion (5), the connecting portion (5) is equipped with brake assembly connecting portion (6) and limit slot I (7), the outer cylinder (2) is respectively arranged at the both ends of inner cylinder (1), and the inner cylinder (1) outer cylinder (2) is arranged eccentric, one outer cylinder (2) is equipped with limit slot II (8), and the other outer cylinder (2) is equipped with adjusting groove (9).

2. An eccentric cylinder for an ATV according to claim 1, characterized in that: The outer cylinder (2) on the adjusting groove (9) is equipped with adjusting mark (10).

3. An eccentric cylinder for an ATV according to claim 2, characterized in that: The adjusting mark (10) is gradually widened slot.

4. An eccentric cylinder for an all terrain vehicle according to any one of claims 1-3, characterized in that: Eccentric cylinder integrated processing forming.