Two-stage oil cylinder

A technology of two-stage oil cylinder and cylinder bottom, which is applied in the direction of fluid pressure actuating device, etc., can solve the problems such as the inability to meet the needs of independent action of pistons at all levels, and achieve the effect of compact structure, reasonable design and wide application range.

Pending Publication Date: 2022-01-28
扎赉诺尔煤业有限责任公司 +1
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  • Claims
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AI Technical Summary

Problems solved by technology

Since the existing two-stage oil cylinder cannot meet the needs of individual action of the pistons at all levels, it is necessary to improve the structure of the two-stage oil cylinder in the prior art

Method used

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Embodiment Construction

[0023] according to Figure 1-7 The specific structure of the present invention will be described in detail. The secondary oil cylinder includes an outer cylinder body 1 composed of an outer cylinder body 11, the rear end of the outer cylinder body 11 of the outer cylinder body 1 is provided with an outer cylinder bottom 2, and the inner cylinder telescopic socket at the front end of the outer cylinder body 11 There are 12 movable sockets provided with a first-stage inner cylinder body 6, and an outer cylinder guide sleeve 4 is also provided at the inner cylinder telescopic socket 12 of the outer cylinder body 11, and then while sealing the inner cavity of the outer cylinder body 1, the first-stage The expansion and contraction of the inner cylinder body 6 is effectively guided. The first-stage inner cylinder body 6 is composed of an inner cylinder body 16 , which is located at the rear end of the outer cylinder body 1 and is provided with an inner cylinder bottom 15 .

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Abstract

A two-stage oil cylinder solves the problems that according to an existing multi-stage telescopic cylinder, pistons of all stages can only stretch out and retract step by step, the requirement for independent action of the pistons of all stages cannot be met, and applicability is poor. The two-stage oil cylinder comprises an outer cylinder body with one end provided with an outer cylinder bottom, and is characterized in that a first-stage inner cylinder body is movably inserted into an opening in the other end of the outer cylinder body, an inner cylinder bottom is arranged at the end, located in the outer cylinder body, of the first-stage inner cylinder body, and a second-stage plunger is movably inserted into an opening in the other end of the first-stage inner cylinder body; a piston is arranged at the end, located in the first-stage inner cylinder body, of the second-stage plunger, and a second-stage liquid inlet and return opening is formed in the other end of the second-stage plunger; and first-stage liquid inlet and return opening is formed in the outer cylinder body. The two-stage oil cylinder is reasonable in design, compact in structure, capable of achieving independent stretching or retracting of pistons of all stages of the oil cylinder, capable of meeting the requirements of various different use working conditions and wide in application range.

Description

technical field [0001] The invention belongs to the technical field of multi-stage telescopic cylinders, and in particular relates to a two-stage oil cylinder capable of independently extending or retracting pistons of various stages of the oil cylinder, meeting the requirements of various operating conditions, and having a wide application range. Background technique [0002] The secondary oil cylinder is composed of a two-stage cylinder body and a piston set. When working, the oil first pushes the primary piston with a larger effective area to move, and then pushes the secondary piston with a smaller effective area to move, driving the piston rod step by step. extend or retract. The secondary oil cylinder and ordinary oil cylinder have the same external dimensions, and the working stroke of the secondary oil cylinder is much longer than that of ordinary oil cylinders. It is suitable for working conditions where the installation space is limited and the telescopic stroke is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14
CPCF15B15/14F15B15/1423F15B15/1428F15B15/1471F15B15/149
Inventor 张洪清邱洋马乡林孙宏井庆贺陈亮闫寿庆许启龙王增仁何亮马继选孙哲
Owner 扎赉诺尔煤业有限责任公司
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