Automatic locking cylinder

An automatic locking and oil cylinder technology, applied in the hydraulic field, can solve problems such as leakage and inability to guarantee locking reliability, and achieve the effect of less parts, simple structure and low cost

Inactive Publication Date: 2015-02-18
CHANGZHOU TENT HYDRAULIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The locking method of the hydraulic locking circuit inevitably has leakage, which cannot guarantee the reliability of locking

Method used

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  • Automatic locking cylinder

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Embodiment Construction

[0026] In order to clarify the technical scheme and technical purpose of the present invention, the present invention will be further introduced below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Such as figure 1 As shown, an automatic locking cylinder includes a cylinder body 1 , a locking device 2 , a driving device 3 and a positioning sleeve 4 . The positioning sleeve 4 is fixed on the top of the oil cylinder body 1 with bolts, and the locking device 2 is assembled on the output shaft 107 of the oil cylinder body 1 for locking or unlocking the output shaft 107 . The locking device 2 is located above the positioning sleeve 4, and the locking device 2 is attached to the top of the positioning sleeve 4 when the oil cylinder is locked; the locking device 2 is away from the top of the positioning sleeve 4 when the oil cylinder is unlocked. The driving device 3 is fixed on the positioning sleeve through the connecting flange, and is...

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Abstract

The invention belongs to the field of hydraulic techniques, and particularly discloses an automatic locking cylinder which comprises a cylinder body, a locking device, a driving device and a positioning sleeve, wherein multiple stages of cylinders are arranged inside the cylinder body; the positioning sleeve is fixed at the top end of the cylinder body; the locking device is assembled on the output shaft of the cylinder body and is used for locking and unlocking the output shaft; the locking device is positioned above the positioning sleeve; the locking device is adhered to the top end of the positioning sleeve when the cylinder is locked; the locking device moves far away from the top end of the positioning sleeve when the cylinder is unlocked; the driving device is fixed on the positioning sleeve through a connection flange and is used for driving the locking device to perform locking or unlocking operation. The cylinder can be locked after a target stroke is achieved and is kept in a stoke state for a long time. The automatic locking cylinder is simple in structure, few in components, low in cost, low in fault rate and convenient in remote control, and in addition, the thrust force output from the cylinder is large due to the design of multiple stages of cylinders.

Description

technical field [0001] The invention relates to a hydraulic device, in particular to an automatic locking oil cylinder capable of automatically locking a piston rod to maintain its stroke, and belongs to the technical field of hydraulic pressure. Background technique [0002] The hydraulic cylinder is an actuator that converts hydraulic energy into mechanical energy in a hydraulic device to achieve linear reciprocating motion. In the application of equipment, the party often requires that the oil shortage be reliably locked at any output working position, and the position should be fixed for a long time. However, the current locking method is guaranteed by various hydraulic locking circuits. The locking method of the hydraulic locking circuit inevitably has leakage, which cannot guarantee the reliability of locking. This solves this problem. The present invention designs a mechanical hydraulic cylinder locking device that can lock the piston rod of the hydraulic cylinder an...

Claims

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Application Information

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IPC IPC(8): F15B15/26F15B15/14
CPCF15B15/14F15B15/1404F15B15/26
Inventor 许一卫
Owner CHANGZHOU TENT HYDRAULIC MACHINERY
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