Oil-gas combined multi-stage damping lifting device

Abstract

The invention discloses an oil-gas combined multi-stage damping lifting device which can solve the problems that existing equipment is great in size, is poor in effect and is short in service life. The oil-gas combined multi-stage damping lifting device comprises cylinder bodies, wherein upper cover bodies are arranged on the cylinder bodies; gas holes are formed in the upper cover bodies; buffercushions are arranged on the lower parts of the upper cover bodies; cylinder bodies sleeve the cylinder bodies; lower cover bodies are arranged on the lower parts of the cylinder bodies; pistons are arranged in the cylinder bodies; high-pressure gas cavities are formed in the cylinder bodies on the upper parts of the pistons; the cylinder bodies are arranged on the lower parts of the pistons; thecylinder bodies downward extend out of the lower cover bodies; gas holes are formed in the lower cover bodies; vacuum cavities are formed in the cylinder body portions, outside the cylinder bodies, onthe lower parts of the pistons; oil holes are formed in the side walls of the cylinder bodies; holes are formed in the middle of the pistons; and an oil cavity is defined in space in each cylinder boy, between the two pistons of the corresponding cylinder body. The oil-gas combined multi-stage damping lifting device is novel and unique in structure, is safe in use, is small in size, is great in extending-out length, is good in using effect, and is good in social and economical benefits.

Description

technical field [0001] The invention relates to the field of motor vehicle accessories, in particular to a multi-stage shock-absorbing lifting device combined with oil and gas. Background technique [0002] Automobile shock absorption is a technical problem that motor vehicles must solve. At present, motor vehicles, such as automobiles, mainly use three types of shock absorption equipment: steel plate type, hydraulic spring type and rubber air bag type. Due to structural defects, the use effect and service life Unsatisfactory, so there is a publication number of CN 105179553 A titled "Shock Absorbing Lifting and Stabilizing Device Combined with Oil and Gas for Motor Vehicles", which can effectively solve the problems of the original shock absorber, which are heavy, poor applicability, high energy consumption, and not durable. Because of its structural problems, it takes up a lot of space and the actual shock absorption effect is not satisfactory, so how to develop a shock-ab...

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Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a multi-stage shock-absorbing lifting device combined with oil and gas, which can effectively solve the problems of large volume, poor effect and short service life of the existing shock-absorbing lifting device

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