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Mechanical self-locking hydraulic jack

A hydraulic jack and jack technology, which is applied in the direction of lifting devices, etc., can solve the problems of lack of support function, high safety risk, and high use risk, and achieve the effects of simple structure, reliable connection and long service life.

Inactive Publication Date: 2014-03-26
李志华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the jack itself mainly relies on external pressure to lift, it does not have a long-term support function. It cannot be used in some occasions that need to be supported for a period of time to facilitate follow-up work. If the jack is taken out after being supported by another support device, its operation Difficult, high safety risk, re-inserting the jack when lowering again, there is also a greater risk of use

Method used

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  • Mechanical self-locking hydraulic jack
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Embodiment Construction

[0011] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.

[0012] figure 1 As shown, a mechanical self-locking hydraulic jack includes a cylinder body 1, a high pressure joint 2, a piston rod 3, a cylinder head 4 and a lock nut 5. The bottom side wall of the cylinder body 1 is provided with a high-pressure joint 2 connected to the inner cavity of the cylinder body, the bottom of the piston rod 3 is sealed and slidably arranged in the inner cavity of the cylinder body 1, the top of the piston rod 3 is sealed and slidably connected to the cylinder head 4, and the cylinder head 4 is packaged The top of the cylinder body 1 and the outer wall of the cylinder body 1 are movably screwed with the locking nut 5 through threads.

[0013] figure 2 As another embodiment of the present invention shown, a mechanical self-locking hydraulic jack includes a cylinder body 1 , a high-pressure joint 2 , a ...

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Abstract

The invention discloses a mechanical self-locking hydraulic jack. A locking nut is movably connected to the outer wall of a cylinder block of a traditional jack in a screwed mode through threads, and under the jacking action of the jack, the locking nut is matched to go up and down along the thread on the outer wall of the cylinder block so as to achieve the supporting function. The mechanical self-locking hydraulic jack is simple and compact in structure, firm and stable in connection, convenient, rapid and safe to use and operate, and suitable for meeting the requirement for the double actions of jacking and supporting on various occasions.

Description

technical field [0001] The invention relates to a jack, in particular to an eccentric load jack capable of double functions of lifting and supporting. Background technique [0002] In the prior art, precise lifting and lifting in a very narrow space, its closed height and maximum formation are the primary factors, so jacks are required. However, since the jack itself mainly relies on external pressure to lift, it does not have a long-term support function. It cannot be used in some occasions that need to be supported for a period of time to facilitate subsequent work. If the jack is taken out after being supported by another support device, its operation Difficult, safety risk is big, put in jack again when lowering again, there is bigger risk of use equally. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a mechanical self-locking hydraulic jack with simple and compact structure, convenient manufacture and us...

Claims

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Application Information

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IPC IPC(8): B66F3/30
Inventor 李志华
Owner 李志华
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