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Lifting Device

a technology of lifting device and lubricating oil, which is applied in the direction of lifting device, variable height table, domestic application, etc., can solve the problems of loss of lubricating effect, easy oxidation of lubricating oil exposed in the air, and no components can stop the exposure of lubricating oil

Inactive Publication Date: 2019-07-04
JIANGSU JELT ELEVATORING SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present lifting device has an oil scraping mechanism that helps to reduce the amount of lubricating oil on the surface of the inner tube when it lifts. This mechanism helps to maintain the lubricating property of the oil and prevents it from leaking out of the outer tube.

Problems solved by technology

However, for the lifting device, in a rising process of the second sleeve, the lubricating oil on the surface of the second sleeve is exposed on the outside of the first sleeve along with rising of the second sleeve, the guiding assembly mounted at an end of the first sleeve is the rolling friction assembly or the sliding friction assembly, and therefore, no components can stop exposure of the lubricating oil.
After the second sleeve rises and is positioned, the lubricating oil on the surface of the second sleeve is exposed in air, in a using process of the lifting device, a user easily touches the lubricating oil, the lubricating oil which is exposed in the air is easily oxidized and becomes dry due to loss of water under flowing of the air, and thus, the lubricating effect is lost.

Method used

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Experimental program
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Embodiment Construction

[0020]As shown in FIG. 1 and FIG. 2, a lifting device of the present utility model comprises an outer tube 1, an inner tube 2, a guiding assembly, an oil scraping mechanism and a spring 3 using fluid as a damping medium to achieve a lifting effect, and their structures and the relationship between the structures will be described in detail:

[0021]As shown in FIG. 1 to FIG. 3, one end of the inner tube 2 is inserted in the outer tube 1 from one end of the outer tube 1 and is fixedly connected with the guiding assembly, a portion of the guiding assembly is in contact with the inner wall surface of the outer tube to implement rolling friction or sliding friction, the guiding assembly comprises a chock plug with one end inserted in the inner tube, the chock plug comprises an inner sleeve 4, an outer assembling tube 5, a connecting block 6 and rolling elements 7, one end of the connecting block 6 is connected to the outer peripheral surface of the inner sleeve 4, the other end of the conn...

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PUM

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Abstract

The invention relates to a lifting device using fluid as a damping medium to form a driving force. It has an outer tube, an inner tube, a guiding assembly and a spring using fluid as a damping medium to achieve a lifting effect, one end of the inner tube being inserted in the outer tube from one end of the outer tube and being fixedly connected with the guiding assembly, a portion of the guiding assembly being in contact with the inner wall surface of the outer tube to implement rolling friction or sliding friction, one end of the spring being positioned in the outer tube, the other end of the spring penetrating through the inner tube and being connected with the inner tube

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to Chinese Patent Application No. 201721919596.0, with a filing date of Dec. 29, 2017. The content of the aforementioned application, including any intervening amendments thereto, is incorporated herein by reference.TECHNICAL FIELD[0002]The invention relates to a lifting device using fluid as a damping medium to form a driving force.BACKGROUND ART[0003]A table which serves as an article for daily life is common in life, work and school learning. Along with improvement of living quality of people, requirements for functions of the table are more and more, for example, a requirement for the lifting function of the table is one of the requirements.[0004]At present, lifting of most of tables is realized by gas spring mechanisms mounted on table legs, for example, an invention patent with the publication number being CN106308039A discloses a lifting device, and the lifting device comprises a spring which provid...

Claims

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Application Information

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IPC IPC(8): A47B9/10A47B9/20
CPCA47B9/10A47B9/20A47B2200/0054B66F3/26
Inventor TAO, SHENGRONGLI, XIAOGANG
Owner JIANGSU JELT ELEVATORING SYST CO LTD