CN208804372U - A kind of hose assembly - Google Patents

Abstract

The utility model provides a kind of hose assembly, belongs to hydraulic assembly accessory technical field.It solves the problems, such as that existing connection hose is easy to loosen in the ring buckle indent of jointing.This hose assembly includes union elbow, one end of union elbow is fixed with hose, the other end of union elbow is connected with nut, attachment base is installed on the outer wall of one end of union elbow, one end fixing sleeve of union elbow is equipped with one end that copper pipe covers and the copper pipe covers and attachment base is connected, one end of hose is arranged with admittedly to be placed in copper pipe set in one end of union elbow, has the abutment means being resisted against hose squeezing on one end outer wall of union elbow between copper pipe set and hose.The utility model structure is simple, and when for High Strength Hydraulic environment, rotary sleeve cooperates the running-on inner wall inclination of the outer wall and copper pipe set of butting section, enhances the leakproofness between hose and one end outer wall of union elbow, easy to use, service life is longer.

Description

A kind of hose assembly

Technical field

The utility model belongs to hydraulic assembly accessory technical field, is related to a kind of hose assembly.

Background technique

As one of components indispensable in hydraulic system, sealing performance directly determines hydraulic hydraulic hose assembly The working performance of system, traditional hydraulic hose assembly exist as following drawbacks: one, it is high that existing steel wire winding enhances overcoating rubber The adapter sub-assembly of hose is pressed to use integration processing, since sub-assembly shape difference is big, consumed material is processed in integration Material is just more, while diameter of bore is small and deep, belongs to deep hole machining, hole size and the different guarantee of finish quality, inner wall coarse, Coefficient of friction is big, and the pressure loss is big, and the service life is short.Two, original technique hose uses and peels off the outer glue of hose and Integral joint simultaneously It withholds, the steel wire of easy damaged hose mid-wrap, rated pressure requirement is not achieved.

For this above-mentioned two o'clock situation, there is a kind of hose assembly on existing market, such as Chinese patent Patent No.: A kind of hydraulic hose assembly described in " 201720732659.5 ", including connection hose, company has been withheld at the connection hose both ends Connector, jointing successively include connecting pin, seamless pipe and connection tail core, and seamless pipe both ends are fixedly installed connection respectively End, connection tail core, connection tail core includes core, withholds set, and core is withheld and forms ring buckle indent open at one end between set, connects Connector is fixedly connected by ring buckle indent with hose pressing is connect.

In such a configuration, by withhold set will connection hose be pressed together in the ring buckle indent of jointing and and ring Shape withholds slot and forms a fixed connection, and when for High Strength Hydraulic environment, the connection hose is in the ring buckle indent of jointing It is easy to loosen, leads to poorly sealed, service life bottom.

Summary of the invention

The purpose of this utility model is that it is simple, close to provide a kind of structure for the above-mentioned problems in the prior art Envelope property hose assembly preferable, with long service life.

The purpose of this utility model can be realized by the following technical scheme: a kind of hose assembly, including union elbow, institute The one end for the union elbow stated is fixed with hose, and the other end of the union elbow is connected with nut, which is characterized in that Attachment base is installed on the outer wall of one end of the union elbow, one end fixing sleeve of the union elbow is equipped with copper pipe set And one end of copper pipe set is connected with the attachment base, one end of the hose is arranged with admittedly in the union elbow One end is placed in the copper pipe set, described with hose squeezing to be resisted against between the copper pipe set and the hose Union elbow one end outer wall on abutment means.

One end fixed connecting base of union elbow in this hose assembly, the fixed copper pipe sleeve on attachment base, the two are fixed The main purpose of connection is to prevent from copper pipe from covering to rotate on attachment base, influences the leakproofness of one end of hose and union elbow, Is positioned against device between copper pipe set and the hose, can the pressure to be born according to hose, adjust abutment means Increase the leakproofness of one end of hose and union elbow, the utility model structure is simple, long service life.

In a kind of above-mentioned hose assembly, the abutment means include housing and the inner sleeve fixed with housing interval, The inner sleeve includes the portion and butting section of wearing, and the outer wall of the butting section is inclined inclined wall from inside to outside, described The running-on inner wall of copper pipe set is the flaring wall being gradually increased from inside to outside, what the outer wall of the butting section and the copper pipe covered The inclination of running-on inner wall against, there is internal screw thread on the outer casing inner wall, be provided with external screw thread on the outer wall of the described copper pipe set, The housing is connected on the external screw thread of the copper pipe set by internal screw thread spiral.Normal fluid pressure environment is in use, this is worn If portion and copper pipe cover inner wall abutting contact, when High Strength Hydraulic environment, rotary sleeve makes the outer wall of butting section and the set of copper pipe set The inclination cooperation of mouthful inner wall, the inner wall overall radial of inner sleeve increase inner sleeve to the squeeze pressure of hose to inside contracting, enhancing hose with Leakproofness between one end outer wall of union elbow, good seal performance are easy to adjust.

In a kind of above-mentioned hose assembly, the jacket and inner sleeve is structure as a whole.Jacket and inner sleeve is integrally connected Structure, the purpose being arranged in this way are the mechanical strengths in order to increase both jacket and inner sleeves.

In a kind of above-mentioned hose assembly, if also there is arterial highway to be spaced apart on the inner wall for the rear end that the copper pipe covers Annular groove, be installed with elastic ring in per pass annular groove and each elastic ring be respectively sleeved on the hose.In reality Border setting is that the quantity of the annular groove is provided with three, and the outer wall of butting section and the running-on inner wall of copper pipe set are made when rotary sleeve When inclination cooperation, the end of the inner sleeve is resisted against on the elastic ring for being placed in outside.

In a kind of above-mentioned hose assembly, the attachment base includes the expanding formation of one end outer wall by union elbow Ring body, the front end of the ring body have the clamping ring being spaced apart with ring body, the copper pipe set One end has clamping seat, and the copper pipe set passes through on the fixed clamping ring for being connected to the ring body of clamping seat.In this way The purpose of setting is that the connection structure for covering attachment base and copper pipe is stablized, securely.

Compared with prior art, the advantages of this hose assembly are as follows: structure is simple, when for High Strength Hydraulic environment, rotation Housing cooperates the running-on inner wall inclination of the outer wall and copper pipe set of butting section, enhances between hose and one end outer wall of union elbow Leakproofness, easy to use, service life is longer.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of this hose assembly.

In figure, 1, union elbow；2, hose；3, nut；4, copper pipe set；5, housing；6, inner sleeve；7, elastic ring；8, annular Ontology；9, it is clamped ring；10, it is clamped seat.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

As shown in Figure 1,2 assembly of this hose is mainly made of union elbow 1, one end of union elbow 1 is fixed with hose 2, The other end of union elbow 1 is connected with nut 3, and attachment base, union elbow are installed on the outer wall of one end of union elbow 1 1 one end fixing sleeve is equipped with one end of copper pipe set 4 and copper pipe set 4 and attachment base is connected, and one end of hose 2 is arranged with admittedly curved One end of pipe fitting 1 is placed in copper pipe set 4, is had between copper pipe set 4 and hose 2 and is pressed against hose 2 described curved Abutment means on one end outer wall of pipe fitting 1.

In actually manufacture, the specific embodiment of the abutment means are as follows: be mainly spaced fixation by housing 5 and with housing 5 Inner sleeve 6 form, inner sleeve 6 includes wearing portion and butting section, and the outer wall of butting section is inclined inclined wall from inside to outside, copper pipe set 4 running-on inner wall is the flaring wall being gradually increased from inside to outside, and the outer wall of butting section is supported with the running-on inner wall inclination of copper pipe set 4 It leans on, there is internal screw thread on 5 inner wall of housing, be provided with external screw thread on the outer wall of copper pipe set 4, housing 5 is connected by internal screw thread spiral On the external screw thread of the copper pipe set 4；In order to increase the mechanical strength of both housing 5 and inner sleeve 6, the housing 5 and inner sleeve 6 are Integral structure.

In actually manufacture, also there is three annular grooves being spaced apart, per pass ring on the inner wall of the rear end of copper pipe set 4 It is installed with elastic ring 7 in shape slot and each elastic ring 7 is respectively sleeved on the hose 2.

In actually manufacture, the specific connection type of the attachment base and copper pipe set 4 are as follows: attachment base includes by union elbow 1 The expanding formation of one end outer wall ring body 8, the front end of ring body 8 has the clamping being spaced apart with ring body 8 Ring 9, one end of copper pipe set 4 have clamping seat 10, and copper pipe set 4 passes through the fixed clamping ring 9 for being connected to ring body 8 of clamping seat 10 On.

The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.Herein Described in specific embodiment be only the spirit of the present invention is given an example.The utility model technical field Technical staff can make various modifications or additions to the described embodiments or be substituted in a similar manner, but Without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (5)

1. a kind of hose assembly, including union elbow (1), one end of the union elbow (1) is fixed with hose (2), described The other end of union elbow (1) be connected with nut (3), which is characterized in that one end of the union elbow (1) it is outer Attachment base is installed on wall, one end fixing sleeve of the union elbow (1) is equipped with copper pipe set (4) and the one of the copper pipe set (4) End is connected with the attachment base, and one end of the hose (2) is arranged with one end juxtaposition in the union elbow (1) admittedly In the copper pipe set (4), has between the copper pipe set (4) and the hose (2) and press against hose (2) Abutment means on one end outer wall of the union elbow (1).

2. a kind of hose assembly according to claim 1, which is characterized in that the abutment means include housing (5) and The fixed inner sleeve (6) with housing (5) interval, the inner sleeve (6) include wearing portion and butting section, the outer wall of the butting section For inclined inclined wall from inside to outside, the running-on inner wall of the copper pipe set (4) is the flaring wall being gradually increased from inside to outside, institute The inclination of the running-on inner wall of the outer wall for the butting section stated and the copper pipe set (4) is against with interior on the housing (5) inner wall Screw thread is provided with external screw thread on the outer wall of the copper pipe set (4), and the housing (5) is connected to institute by internal screw thread spiral On the external screw thread for the copper pipe set (4) stated.

3. a kind of hose assembly according to claim 2, which is characterized in that the housing (5) and inner sleeve (6) is integrated Structure.

4. a kind of hose assembly according to claim 2 or 3, which is characterized in that the rear end of the copper pipe set (4) it is interior If the annular groove being also spaced apart with arterial highway on wall, elastic ring (7) and each elastic ring are installed in per pass annular groove (7) it is respectively sleeved on the hose (2).

5. a kind of hose assembly according to claim 4, which is characterized in that the attachment base includes by union elbow (1) front end of the ring body (8) of the expanding formation of one end outer wall, the ring body (8) has and ring body (8) One end of the clamping ring (9) being spaced apart, the copper pipe set (4) has clamping seat (10), and the copper pipe set (4) passes through card On the fixed clamping ring (9) for being connected to the ring body (8) of joint chair (10).