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Hydraulic spreader

An expander and hydraulic technology, which is applied in the direction of respiratory protection containers, life-saving equipment, etc., can solve the problems of poor adjustment of the distance from the piston to the joint between the expansion arm and the splint, and affect the operation, etc., to achieve the effect of increasing the force and enhancing the expansion force

Inactive Publication Date: 2016-03-23
CHENGDU FAREAST HIGH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the existing structure, the distance from the piston to the junction of the extension arm and the splint is not easy to adjust, and when the distance from the piston to the junction of the extension arm and the splint is large, the operation will be affected

Method used

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  • Hydraulic spreader

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] like figure 1 The shown hydraulic expander includes two upper and lower opposite expansion arms 1, a hydraulic cylinder 2 for driving the expansion arms and a transmission arm 3 for driving the expansion arms. The hydraulic cylinder 2 is provided with two installation Ear 21, the extension arm 1 includes a force application end at the rear end and an expansion end at the front end, the force application end is provided with a fixing groove 11, the mounting ear 21 is movably arranged in the notch of the fixing groove 11, and the transmission arm 3 One end is movably arranged on the piston rod of the hydraulic cylinder 2 and the other end is movably arranged in the fixed groove 11 .

Embodiment 2

[0018] like figure 1 The hydraulic expander shown in this embodiment is optimized on the basis of the above embodiments, that is, the expansion end is provided with an anti-slip structure, and the anti-slip structure can adopt various structures, such as a rubber layer, preferably set as Anti-skid teeth 12. The rubber layer is used as the anti-slip structure, which is easy to fall off after a long service time.

[0019] A spring 4 is installed between the transmission arm 3 and the mounting ear 21 . One end of the spring is fixed at a position close to the fixed point of the transmission arm and the force application end.

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PUM

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Abstract

The invention discloses a hydraulic spreader, comprising an extension arm, a hydraulic cylinder, and a transmission arm. The hydraulic cylinder is provided with two installation lugs. The extension arm comprises a rear end force application end and a front end extension end. The force application end is provided with fixed grooves. The installation lugs are movably arranged on the groove openings of the fixed grooves. One end of the transmission arm is movably arranged on the piston rod of the hydraulic cylinder, and the other end is movably arranged in the fixed groove. The hydraulic spreader is easy to operate, and is beneficial for enhancing extension force.

Description

technical field [0001] The invention relates to the field of fire-fighting hydraulic rescue tools, and more specifically relates to a hydraulic expander. Background technique [0002] The hydraulic expander, which has the most powerful expansion, tearing and pulling functions among emergency rescue tools, can carry out high-load rescue operations. It is made of high-strength light alloy steel, light in weight and large in expansion force; it can be used for mobile , Lift obstacles, pry open the gap and expand it into a channel, deform the metal structure, and tear the steel plate on the surface of the car body. It is small in size and easy to operate, and has been widely used at present. The existing hydraulic expander comprises a hydraulic cylinder, an extension arm, a connecting rod and a splint arranged on the hydraulic cylinder. On one end of the extension arm, with this structure, the extension or closure of the extension arm is controlled by the hydraulic cylinder. Ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B99/00
CPCA62B99/00
Inventor 蓝宁
Owner CHENGDU FAREAST HIGH TECH CO LTD