CN201858450U - Oil tube serial structure - Google Patents

Abstract

The utility model discloses an oil tube serial structure which comprises a long oil tube and a short oil tube, wherein a bend is arranged on the long oil tube; female ports are arranged at two ends of the long oil tube; corresponding male ports are arranged at two ends of the short oil tube; and the long and short oil tubes are connected with the female ports through the male ports. The female ports respectively comprise an inner jacket which is divided into a movable part and a fixed part, wherein a radial outward convex ring is arranged at the front edge of the fixed part; a corresponding radial inward convex ring is arranged at the movable part; the movable part is sheathed outside the fixed part and limited through the inward and outward convex rings; the fixed part of the inner jacket is connected with an opening end of the long oil tube; an inner thread is arranged on the inner wall of the movable part; and the surface of the inward convex ring is made of elastic sealing material. The male ports respectively comprise an outer jacket, wherein the head end of the outer jacket is sheathed at an opening end of the short oil tube; the outer wall of the tail end of the outer jacket is made of elastic sealing material; and an outer thread corresponding to the inner thread is arranged on the outer wall between the elastic sealing material and the head end of the outer jacket. Compared with the prior art, the structure is simple and convenient for fixing, unobstructed in an oil path and good in sealing performance.

Description

The oil pipe cascaded structure

Technical field

The utility model belongs to hydraulic transmission technology field, specifically is a kind of oil pipe cascaded structure.

Background technique

Hydraulic transmission is used in engineering practice a lot, for example field work engineering machinery such as excavator.Because operating environment is abominable, very big for the influence of the oil circuit in the Hydraulic Power Transmission System, the straight tube place of existing oil circuit adopts the metal material oil pipe, and turning etc. locate to adopt flexible hoses to connect as oil pipe more.Because material difference, the two oil pressure that can bear is variant, and the connection between the two etc. all can difficulty, the easier situation such as leakage of oil that occurs.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, the utility model proposes a kind of new oil pipe cascaded structure, concrete technological scheme is as follows:

A kind of oil pipe cascaded structure comprises long oil pipe and short oil pipe, and the long oil pipe is provided with bending; Described long oil pipe two ends are provided with female mouthful, and short oil pipe two ends are provided with corresponding public mouthful, and long and short oil pipe is connected with female mouthful by public mouthful;

Described female mouthful comprises interior cover, and interior cover is divided into active part and standing part, and the standing part leading edge is provided with evagination circle radially, and active part is provided with corresponding convex circle radially, and active part is enclosed within outside the standing part, and spacing by inside and outside protruding circle; The standing part of interior cover is connected the opening end of long oil pipe; The inwall of active part is provided with internal thread, and described convex circle surface is an elaxtic seal;

Described public mouth comprises overcoat; The head end of overcoat is sleeved on the opening end of short oil pipe; The outer wall of the tail end of overcoat is provided with elaxtic seal; On the outer wall between elaxtic seal and the overcoat head end, be provided with the outside thread corresponding with described internal thread.

This structure is connected by long and short oil pipe, and the oil pipe of turning or other joints can be connected closely.Why on the long oil pipe bending being set, is because bender is more simple and ripe for the processing method of long oil pipe bending.In addition, for a product, its main structure shape mainly embodies by the long oil pipe, and the short oil pipe only is an interconnect function.

Described short oil pipe is provided with clip outward, is used for fixing the short oil pipe to other fixed block.

Compared with prior art, this structure fixing easy, oil circuit is unobstructed, good seal performance.

Description of drawings

Fig. 1 is the structural representation of present embodiment.

Fig. 2 is the structural representation of public mouth and female mouthful of joint.

Fig. 3 is the radial cross section schematic representation of clip.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment:

A kind of oil pipe cascaded structure comprises long oil pipe 2 and short oil pipe 1, and long oil pipe 2 is provided with bending; Described long oil pipe 2 two ends are provided with female mouthful, and short oil pipe 1 two ends are provided with corresponding public mouthful, and long and short oil pipe is connected with female mouthful by public mouthful;

Described female mouth comprises interior cover, interior cover is divided into active part 23 and standing part 25, and standing part 25 leading edges are provided with evagination circle 24 radially, and active part 23 is provided with corresponding convex circle radially, active part 23 is enclosed within outside the standing part 25, and spacing by inside and outside protruding circle; The standing part 25 of interior cover is connected the opening end of long oil pipe 2; The inwall of active part 23 is provided with internal thread, and described convex circle surface is an elaxtic seal;

Described public mouth comprises overcoat 21; The head end of overcoat is sleeved on the opening end of short oil pipe 1; The outer wall of the tail end of overcoat is provided with elaxtic seal; On the outer wall between elaxtic seal and the overcoat head end, be provided with the outside thread 22 corresponding with described internal thread.

Described short oil pipe is provided with clip 3 outward.

In this example, elaxtic seal is selected acid-resisting rubber for use.

Claims (2)

1. an oil pipe cascaded structure is characterized in that comprising long oil pipe and short oil pipe, and the long oil pipe is provided with bending; Described long oil pipe two ends are provided with female mouthful, and short oil pipe two ends are provided with corresponding public mouthful, and long and short oil pipe is connected with female mouthful by public mouthful;

Described female mouthful comprises interior cover, and interior cover is divided into active part and standing part, and the standing part leading edge is provided with evagination circle radially, and active part is provided with corresponding convex circle radially, and active part is enclosed within outside the standing part, and spacing by inside and outside protruding circle; The standing part of interior cover is connected the opening end of long oil pipe; The inwall of active part is provided with internal thread, and described convex circle surface is an elaxtic seal;

Described public mouth comprises overcoat; The head end of overcoat is sleeved on the opening end of short oil pipe; The outer wall of the tail end of overcoat is provided with elaxtic seal; On the outer wall between elaxtic seal and the overcoat head end, be provided with the outside thread corresponding with described internal thread.

2. oil pipe cascaded structure according to claim 1 is characterized in that described short oil pipe is provided with clip outward.

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