Novel forklift lifting steel pipe assembly

Abstract

The invention discloses a novel forklift lifting steel pipe assembly. The novel forklift lifting steel pipe assembly comprises a straight pipe, a bent pipe and a joint body; the bent pipe is of a U-shaped structure which is symmetrically arranged; two ends of the bent pipe are connected with two second connecting pipes respectively; the end portion of each second connecting pipe is connected with a joint nut; a joint top surface body of the joint body is fixedly connected with a pipe clamp; one end of the straight pipe is fixedly connected with a joint right side body of the joint body; the other end of the straight pipe is connected with a first connecting pipe which is matched with the second connecting pipes; the end portion of the first connecting pipe extends to form a small diameter connection portion; a first sealing ring which is closely matched with the end surfaces of the second connecting pipes is arranged on the outer wall of the small diameter connection portion in a sleeving mode; the outer wall of the first connecting pipe is in sealing connection with a sleeve; the outer wall of the sleeve is provided with a front external thread section which is matched with the joint nuts. According to the novel forklift lifting steel pipe assembly, the structure is simple and reasonable, the use cost is low, the gas in a pipe is discharged conveniently, the assembly is convenient, and the sealing effect is good.

Description

technical field [0001] The invention relates to the technical field of forklifts, in particular to a novel forklift lifting steel pipe assembly. Background technique [0002] With the development of the economy, the large-scale and heavy-duty industrial products, and the continuous development of railway, road, and water container transportation, the market demand for large-tonnage forklifts is increasing, and the requirements for large-tonnage forklifts are also getting higher and higher. For this reason, large-tonnage forklifts have been constantly innovating and transforming, but these compact forklifts have brought some difficulties to the transformation. For example: the hydraulic power system of a large-tonnage forklift has undergone a series of upgrades, and the volume of the entire hydraulic power system has become larger. Due to the compact structure of the forklift itself and the narrow installation area, it has brought some difficulties to the subsequent installat...

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Problems solved by technology

[0004] However, the applicant found in practical application that the above-mentioned "forklift lifting steel pipe assembly" also has the following disadvantages: since the lifting oil pipe is connected with the forklift lifting mechanism, in order to ensure the normal operation of the lifting mechanism, the oil pressure in the oil pipe body is usually relatively low. High, after the oil pipe body is set into a U shape, the pipe wall at the bend will bear a large fluid pressure, which is prone to pipeline rupture, and because the oil pipe body is processed in one piece, when the bend appears In case of rupture, the entire oil pipe body needs to be replaced, resulting in a defect of high cost; moreover, after the fluid collides with the pipe wall at the bend, gas will be generated, and if this part of the gas cannot be discharged, it will form a certain The pressure will affect the service life of the tubing body

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