CN203868558U

CN203868558U - Metal sealing type hydraulic hinge joint

Info

Publication number: CN203868558U
Application number: CN201420271511.2U
Authority: CN
Inventors: 徐家祥; 马杰; 田原; 陈秀云; 余建福
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2014-05-26
Filing date: 2014-05-26
Publication date: 2014-10-08
Anticipated expiration: 2024-05-26

Abstract

The utility model relates to a metal sealing type hydraulic hinge joint. The metal sealing type hydraulic hinge joint comprises a hinge joint body and a hinge joint bolt inserted in the hinge joint body, wherein the hinge joint body is in the shape of a tee-branch pipe, and comprises a first pipe port, a second pipe port and a third pipe port, the first pipe port, the second pipe port and the third pipe port are communicated with one another, the axis of the first pipe port and the axis of the second pipe port are the same, the hinge joint bolt is inserted in the first pipe port and the second pipe port, a center oil way in the shape of a blind hole is formed in the threaded end of the hinge joint bolt in the axial direction of the hinge joint bolt, a crossed flow passage hole communicated with the center oil way is formed in the position, corresponding to the third pipe port, of the hinge joint bolt and formed in the radial direction of the hinge joint bolt, an annular groove is formed in the portion, corresponding to the third pipe port, of the hinge joint body, and a channel for hydraulic oil to flow is formed by the center oil way, the crossed flow passage hole, the annular groove and the third pipe port. According to the technical scheme of the sealing type metal hydraulic hinge joint, the flow passage area of the hinge pipe joint is increased by forming the annular groove, and pressure loss of the hinge pipe joint is reduced; meanwhile, due to the fact that a metal sealing structure is adopted, the problem that when concentricity of a sealing part and a hinge joint bolt is adjusted manually, the concentricity is not accurate is solved.

Description

A kind of metal sealed is hydraulic joint articulated

Technical field

The utility model relates to a kind of articulated joint, is specifically related to a kind of metal sealed hydraulic joint articulated.

Background technique

Hydraulic pipe line is a kind of pipe joint form conventional in hydraulic system with hinged pipe joint, and the hydraulic fluid port direction that when its major advantage is installation, hinged pipe joint is connected with pipeline can regulate, and after installing, pipe joint height is lower, is convenient to arrange.In actual use, hinged pipe joint exists the pressure loss large to existing hinged pipe joint, and bonded washer needs the concentricity of artificial adjustment and hinge bolt, and not easy to operate, sealing reliability is not high, causes occurring the phenomenon of pipe joint seepage.

Model utility content

The purpose of this utility model is to provide a kind of metal sealed hydraulic joint articulated, and this joint sealing is reliable, and the pressure loss is little.

For achieving the above object, the utility model has adopted following technological scheme: comprise articulated body and be inserted into the hinge bolt on articulated body, described articulated body is threeway tubulose, comprise be interconnected first, second, the 3rd mouth of pipe, wherein first, the axis of second mouth of pipe is identical, described hinge bolt is inserted into first, in second mouth of pipe, and the helical thread portion of hinge bolt is positioned at the outside of articulated body, the threaded end of hinge bolt is axially inwardly provided with the central oil passage of blind hole shape along it, the described hinge bolt position corresponding with the 3rd mouth of pipe is radially provided with along it cross through flow hole connecting with central oil passage, on the described articulated body inwall corresponding with the 3rd mouth of pipe, offer circular groove, described central oil passage, cross through flow hole, circular groove and the 3rd mouth of pipe form the passage of running of hydraulic power oil.

Described articulated body and hinge bolt are metal material.

The end face of first, second described mouth of pipe is equipped with the obtuse angle bump of 157 degree.

As shown from the above technical solution, the utility model increases the flow area of hinged pipe joint by circular groove is set, and has reduced the pressure loss of pipe joint; Adopt shape metallic leak-proof structure simultaneously, solved artificial adjustment Sealing and hinge bolt concentricity inaccurate and cause the insecure problem of sealing.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is decomposition texture schematic diagram of the present utility model;

Fig. 3 is internal structure schematic diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described further:

As Fig. 1, Fig. 2, a kind of metal sealed shown in Fig. 3 is hydraulic joint articulated, comprise articulated body 1 and be inserted into the hinge bolt 2 on articulated body 1, articulated body 1 is threeway tubulose, comprise be interconnected first, second, the 3rd mouth of pipe 11, 12, 13, wherein first, second mouth of pipe 11, 12 axis is identical, hinge bolt 2 is inserted into first, second mouth of pipe 11, in 12, and the helical thread portion of hinge bolt 2 is positioned at the outside of articulated body 1, be that hinge bolt 2 is from first, second mouth of pipe 11, 12 insert, the bolt head of hinge bolt is resisted against the end face of first mouth of pipe, the thread section of hinge bolt is through the outside that is positioned at second mouth of pipe after second mouth of pipe, the threaded end of hinge bolt 2 is axially inwardly provided with the central oil passage 21 of blind hole shape along it, hinge bolt 2 position corresponding with the 3rd mouth of pipe 13 is radially provided with along it cross through flow hole 22 connecting with central oil passage 21, be that hinge bolt 2 is inwardly provided with blind hole from its bottom, through flow hole 22 arranges four, is cross respectively along the radial symmetric setting of hinge bolt, on articulated body 1 inwall corresponding with the 3rd mouth of pipe 13, offer circular groove 14, circular groove 14 can increase the flow area of hinged pipe joint, reduces the pressure loss of pipe joint, central oil passage 21, cross through flow hole 22, circular groove 14 and the 3rd mouth of pipe 13 form the passage of running of hydraulic power oil.

Further, articulated body 1 be metal material with hinge bolt 2, can solve that artificial adjustment Sealing and hinge bolt concentricity are forbidden and the insecure problem of sealing that causes.

Further, the end face of first, second mouth of pipe 11,12 is equipped with the obtuse angle bump 3 of 157 degree.The position that the position that first mouth of pipe 11 matches with the bolt head of hinge bolt 2 and the 3rd mouth of pipe match with hydraulic element hydraulic fluid port end face is provided with 157 degree obtuse angle projecting surfaces, in the time that the utility model is installed on hydraulic element hydraulic fluid port, install under active force at the screw thread of hinge bolt 2, in articulated body 1,157 of first, second hydraulic fluid port degree obtuse angle bumps 3 push the rear sealing surface that forms with bolt head lower end surface and the hydraulic element hydraulic fluid port end face of hinge bolt 2 respectively.

The beneficial effects of the utility model are: 1) by setting up circular groove 14, increased the flow area of hinged pipe joint, reduced the pressure loss of pipe joint; 2) adopt shape metallic leak-proof structure, solved artificial adjustment Sealing and hinge bolt concentricity inaccurate and cause insecure problem that seals.

Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.

Claims

1. a metal sealed is hydraulic joint articulated, it is characterized in that: comprise articulated body (1) and be inserted into the hinge bolt (2) on articulated body (1), described articulated body (1) is threeway tubulose, comprise be interconnected first, second, the 3rd mouth of pipe (11, 12, 13), wherein first, second mouth of pipe (11, 12) axis is identical, described hinge bolt (2) is inserted into first, second mouth of pipe (11, 12) in, and the helical thread portion of hinge bolt (2) is positioned at the outside of articulated body (1), the threaded end of hinge bolt (2) is axially inwardly provided with the central oil passage (21) of blind hole shape along it, described hinge bolt (2) position corresponding with the 3rd mouth of pipe (13) is radially provided with along it cross through flow hole (22) connecting with central oil passage (21), on described articulated body (1) inwall corresponding with the 3rd mouth of pipe (13), offer circular groove (14), described central oil passage (21), cross through flow hole (22), circular groove (14) and the 3rd mouth of pipe (13) form the passage of running of hydraulic power oil.

2. metal sealed according to claim 1 is hydraulic joint articulated, it is characterized in that: described articulated body (1) is metal material with hinge bolt (2).

3. metal sealed according to claim 1 is hydraulic joint articulated, it is characterized in that: the end face of described first, second mouth of pipe (11,12) is equipped with the obtuse angle bump (3) of 157 degree.