Hose coupling spin cap fixing structure
Technical field
The utility model relates to link field, relevant to a kind of structure of hose coupling.
Background technique
Cause jointing stuck or break because reverse or be wound around in using for avoiding flexible pipe, current industry many employing spins flexible pipe, as shown in Figure 1, for existing a kind of spin structure, the front end rivet clasp one of flexible pipe spins core 1 ', flexible pipe front end is accessed in attaching nut 2 ' to form and is rotatably connected together with spin core 1 ', the front end of spin core 1 ' is provided with stainless steel gasket 3 ' successively, sealing gasket 4 ' and compress this stainless steel gasket and sealing gasket from spiral cover 5 ', owing to there is certain matching gap from spiral cover 5 ' and attaching nut 2 ' inwall, be easy to come off from spiral cover in assembly process, sealing gasket can be caused after coming off to be shifted, jointing is caused to seal not good and leak.The improvement that the utility model is namely not enough for this and carry out, this case produces thus.
Model utility content
The utility model provides a kind of hose coupling spin cap fixing structure, to solve in prior art from the problem that spiral cover easily comes off.,
For reaching above-mentioned purpose, the technical solution of the utility model is:
A kind of hose coupling spin cap fixing structure, include flexible pipe, spin core, attaching nut, stainless steel gasket, sealing gasket and from spiral cover, spin core adopts integrally moulded, middle part is provided with water port, spin core one end is fixedly connected with flexible pipe, the other end protrudes outside flexible pipe, what described attaching nut loosened is nested with in the outside of flexible pipe with spin core, described stainless steel gasket, sealing gasket and from spiral cover be arranged on spin core the other end on, the port of this other end extends radially outwardly into type one and keeps off edge, and the bottom surface on gear edge is inclined-plane.
Described spin core is provided with the cutting graftage part and a limited step that are connected with flexible pipe, and the surface of cutting graftage part is laid with dentation rib.
Described attaching nut is horn-like hollow sleeve, and inwall precalculated position is provided with the flange coordinated with the core limited step that spins.
Adopt said structure, because the utility model spin core is being provided with a shaping gear edge on the port of spiral cover side, can not deviate from from spin core easily from spiral cover when mounted by this structure hose coupling, thus effectively ensure the sealing of the stability that flexible pipe connects and interface.
Accompanying drawing explanation
Fig. 1 is the composite structure sectional view of existing hose coupling;
Fig. 2 is composite structure sectional view of the present utility model;
Fig. 3 is the partial enlarged drawing of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing and concrete enforcement, the utility model is elaborated.
As Fig. 2, shown in 3, the utility model hose coupling spin cap fixing structure, include flexible pipe 1, spin core 2, attaching nut 3, stainless steel gasket 4, sealing gasket 5 and from spiral cover 6, spin core 2 adopts plastics integrated injection molding, middle part is provided with water port, spin core 2 one end flexible pipe 1 is fixedly connected with, this one end is provided with the cutting graftage part 21 and a limited step 22 that are connected with flexible pipe 1, the surface of cutting graftage part 21 is laid with dentation rib 23, spin core 2 the other end protrudes outside flexible pipe 1, stainless steel gasket 4, sealing gasket 5 and on the other end that spiral cover 6 is arranged on this spin core 1, be pressed in sealing gasket 5 and stainless steel gasket 4 from spiral cover 6, specifically, this spin core 2 the other end port radially integrally stretches out and shaping one prevents the gear deviate from from spiral cover along 24, this gear is inclined-plane 25 along the bottom surface of 24, what described attaching nut 3 loosened is nested with in the outside of flexible pipe 1 with spin core 2, this attaching nut 3 is horn-like hollow sleeve, inwall precalculated position is provided with the flange 31 coordinated with the core limited step 22 that spins, when attaching nut 3 is connected with external member, this spin core limited step 22 contact is on the flange 31 of attaching nut.
Adopt said structure, because the utility model spin core is on the gear edge of installing a shaping Anti-extrusion on the port of spiral cover side, can not deviate from from spin core easily again from spiral cover by during this structure installment, thus effectively ensure the sealing of the stability that flexible pipe connects and interface.
The above, be only preferred embodiment of the present utility model, be not used for limit the utility model implement scope.Therefore the change in every case done according to claim of the present utility model and specification or modification, all should belong within scope that the utility model patent contains.