Secondary jacking-up device

Abstract

The invention discloses a secondary jacking-up device which comprises a substrate (1). The secondary jacking-up device is characterized in that at least two primary jacking-up elements (2) are arranged on the substrate (1); a working end of each primary jacking-up element (2) is connected with a concave uplifting frame (3); a secondary jacking-up element (5) is arranged in a groove (4) of the concave uplifting frame (3); guide plates (6) are further arranged on two sides of the concave uplifting frame (3); guide holes (7) in shapes matched with the primary jacking-up elements (2) are formed on the guide plates (6); and auxiliary guide plates (8) matched with the primary jacking-up elements (2) are further arranged on the side surfaces of the concave uplifting frame (3). The secondary jacking-up device has the advantages of simple structure, ingenious design, little space occupation and long extension distance, and can acquire an extension distance exceeding the self length of the secondary jacking-up device.

Description

Secondary jacking device technical field The invention relates to a jacking device, in particular to a two-stage jacking device with simple structure, ingenious design, small installation space and long expansion and contraction distance. Background technique In industrial production activities, many places need to use some devices to achieve linear motion. Generally speaking, the devices that can realize this linear motion include hydraulic cylinders, cylinders, etc., but there is a problem with these devices: their effective working distance cannot be greater than The length of the device housing. In some cases where the installation space is limited, these devices cannot be used to achieve linear motion. It has brought a lot of inconvenience to users, so a jacking device that can solve the above-mentioned problems is needed now, which can be installed in a relatively narrow space and can obtain a telescopic distance exceeding its own length. Contents of the invention...

AI Technical Summary

Problems solved by technology

In industrial production activities, many places need to use some devices to achieve linear motion. Generally speaking, the devices that can realize this linear motion include hydraulic cylinders, cylinders, etc., but there is a problem with these devices: their effective working distance cannot be greater than The length of the device housing

This makes it impossible to use these devices to achieve linear motion in some cases where the installation space is limited

It has brought a lot of inconvenience to users, so now there is a need for a jacking device that can solve the above problems, can be installed in a relatively narrow space, and can obtain a telescopic distance exceeding its own length

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