CN108644504B

CN108644504B - Internal expanding type hose connecting assembly

Info

Publication number: CN108644504B
Application number: CN201810692966.4A
Authority: CN
Inventors: 汤金龙
Original assignee: Wujiang Yuanda Polymer Trade Co ltd
Current assignee: Wujiang Yuanda Polymer Trade Co ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2021-01-29
Anticipated expiration: 2038-06-29
Also published as: CN108644504A

Abstract

The invention discloses an inward-expanding type hose connecting assembly which is used for connecting a hose and comprises a connecting pipe, a sleeve and a water stop part arranged at one end part of the connecting pipe, wherein the hose connecting assembly also comprises an inward-expanding device arranged on the connecting piece in a sliding manner and a functional connecting piece arranged on the connecting piece and used for pushing the inward-expanding device to the water stop part, and a first guide inclined surface inclining from the outer surface of the connecting pipe to the outer peripheral surface of the water stop part and extending is arranged between the water stop part and the inward-expanding device.

Description

Internal expanding type hose connecting assembly

Technical Field

The invention relates to an internal expanding type hose connecting assembly.

Background

The existing hose is usually sleeved on a pipe fitting to be connected, and then is fixed by means of external force tightening or pressing, so that the hose is connected, the fixing piece is external and easy to loosen, so that the hose connecting piece is easy to leak water, and the hose can easily slide on the pipe fitting and even fall off when water pressure in the hose changes or the hose is pulled.

In addition, the existing hose connecting device has the problem of complex structure and inconvenient installation.

Accordingly, there is a need for a coupling assembly that can quickly and reliably couple hoses.

Disclosure of Invention

The invention aims to provide an internal expanding type hose connecting component capable of reliably connecting hoses.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an interior expanding hose coupling assembling for coupling hose, it includes connecting pipe, sleeve pipe and sets up the stagnant water portion of connecting pipe tip, stagnant water portion certainly the outside portion of connecting pipe outwards protrudes annularly, the sleeve pipe box is established outside stagnant water portion, the sleeve pipe with the clearance has between the stagnant water portion, hose coupling assembling still sets up including sliding interior expanding device on the connecting pipe is in with setting up be used for on the connecting pipe with interior expanding device pushes to the functional connection piece of stagnant water portion, stagnant water portion with interior expanding be provided with between the device certainly the surface slant of connecting pipe the first direction inclined plane that the outer peripheral face of stagnant water portion extends, interior expanding device box is established on the connecting pipe and with first direction inclined plane offsets.

Preferably, the internal expanding device comprises a ring sleeve part sleeved outside the connecting pipe in a tubular shape and a locking part arranged outside the ring sleeve part and extending outwards, and a gap is formed between the locking part and the sleeve.

Further preferably, when the functional connector pushes the internal expanding device to move towards the first guide inclined surface, the internal expanding device deforms and expands outwards under the guide of the first guide inclined surface.

Further preferably, the functional connector is screwed to the connection pipe.

Preferably, the first guide slope is a tapered surface.

Preferably, the locking portion has an outwardly convex ring shape.

Preferably, the locking portion and the connection pipe are arranged perpendicular to each other.

Preferably, the water stop part comprises an annular body part fixedly arranged with the connecting pipe and a sealing ring sleeved on the outer ring of the body part.

Further preferably, a second guide inclined surface extending from the outer surface of the connection pipe to the outer peripheral surface of the water stop portion is further provided between the end portion of the connection pipe and the water stop portion.

Further preferably, the seal ring is disposed in a groove between the first guide slope and the second guide slope.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the invention adopts the water stop part to stop water flow, and simultaneously adopts the internal expanding device and the sleeve to fix the hose, so as to prevent the hose from sliding relative to the connecting pipe, thereby achieving the technical purpose of quickly connecting the hose. And, locking the hose from inside, be difficult to receive external force after the hose is locked influence, it is relatively stable, difficult not hard up for interface portion is difficult to leak water.

Drawings

FIG. 1 is a schematic structural view of the present invention prior to locking;

fig. 2 is a schematic view of the locked structure of the present invention.

In the above drawings: 1. a connecting pipe; 2. a water stop part; 21. a body portion; 22. a seal ring; 3. a sleeve; 4. an internal expanding device; 41. a loop portion; 42. a locking portion; 43. a resisting part; 5. a functional connector; 61. a first guide slope; 62. a second guide slope; 7. a hose.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings to which:

referring to the attached drawings 1-2, an inward-expanding type hose connecting assembly is used for connecting a hose 7 and comprises a connecting pipe 1, a sleeve 3 and a water stopping part 2 arranged at one end part of the connecting pipe 1, wherein the water stopping part 2 protrudes outwards from the outer side part of the connecting pipe 1 to form a ring, the sleeve 3 is sleeved outside the water stopping part 2, a gap is formed between the sleeve 3 and the water stopping part 2, the hose connecting assembly further comprises an inward-expanding device 4 arranged on the connecting pipe 1 in a sliding mode and a functional connecting piece 5 arranged on the connecting pipe 1 and used for pushing the inward-expanding device 4 to the water stopping part 2, a first guide inclined surface 61 extending from the outer surface of the connecting pipe 1 to the outer peripheral surface of the water stopping part 2 is arranged between the water stopping part 2 and the inward-expanding device 4, and the inward-expanding device 4 is sleeved on the connecting pipe.

When in use, referring to the attached drawing 1, the sleeve 3 is firstly sleeved on the hose 7, the hose 7 is led in from the end of the water stopping part 2 and sleeved outside the water stopping part 2 and the internal expanding device 4, and then the sleeve 3 is slid to the outer sides of the water stopping part 2 and the internal expanding device 4; referring to fig. 2, the internal expanding device 4 is pushed by the functional connector 5 to move towards the first guiding inclined surface 61, so that the internal expanding device is deformed outwards by the first guiding inclined surface 61, and the hose 7 is locked by the internal expanding device 4 and the sleeve 3.

In this embodiment, the internal expanding device 4 comprises a ring sleeve portion 41 sleeved on the outside of the connecting pipe 1 in a tubular shape, a locking portion 42 extending outwards and arranged on the outside of the ring sleeve portion 41, and a resisting portion 43 for resisting the end of the hose 1. The stopping part 43 is fixedly arranged outside the ring sleeve part 41 in a sheet shape, the outer diameter of the stopping part is slightly smaller than the inner diameter of the sleeve 3, and the stopping part is used for blocking one end part of the sleeve 3. The locking portion 42 has a clearance with the sleeve 3. When the hose 7 is connected, the hose passes through the water stop part 2 and then is clamped in the gap between the locking part 42 and the sleeve 3.

Specifically, the functional connector 5 is screwed with the connecting pipe 1, and when the functional connector 5 pushes the inner expanding device 4 to move towards the first guiding inclined surface 61, the inner expanding device 4 deforms and expands outwards under the guidance of the first guiding inclined surface 61. So that the clearance between the locking portion 42 and the sleeve 3 becomes small to completely lock the hose 7 and the connection pipe 1 to each other.

The locking part 42 is in the shape of an outwardly protruding ring, the locking part 42 is perpendicular to the connecting pipe 1, and the annular locking part 42 can lock the hose 7 and can also play a certain sealing role.

Referring to fig. 1, the first guide slope 61 is a tapered surface to which the collar portion 41 slides after being pushed by the functional connector 5 and expands annularly outward by the tapered surface. Referring to fig. 2, since the first guiding inclined surface 61 is a conical surface, the sleeve 3 of the deformed portion of the ring portion 41 is inclined with the conical surface after deformation, and originally, the locking portion 42 of the vertical connection pipe 1 changes its angle with the conical surface to be inclined in addition to expansion deformation, so as to further squeeze and grasp the hose 7 clamped in the locking portion 42, thereby improving the locking efficiency of the locking portion 42 and preventing loosening.

In this embodiment, the inner expanding device 4 is an injection molding member with strong deformability, and in other embodiments, a metal member with good ductility may be used.

In this embodiment, the water stop portion 2 includes an annular body portion 21 fixedly disposed with the connection pipe 1 and a sealing ring 22 disposed around the outer ring of the body portion 21, so as to improve the sealing performance.

Further, a second guide slope 62 extending from the outer surface of the connection pipe 1 obliquely to the outer peripheral surface of the water stop portion 2 is provided between the end of the connection pipe 1 and the water stop portion 2. The second guiding inclined surface 62 can provide a guiding function when the hose 7 is sleeved, and the guiding is convenient.

Referring to fig. 1, the packing 22 is disposed in a groove between the first guide slope 61 and the second guide slope 62, thereby preventing the packing 22 from sliding and improving the stability of the packing 22 when mounted.

Compared with the prior art, the embodiment has the following advantages:

1. because this embodiment adopts water-stop part 2 to block rivers, adopts simultaneously to expand device 4 and sleeve pipe 3 fixed hose 7 in, prevents that hose 7 from sliding relative connecting pipe 1 to reach the technical purpose of quick connect hose 1.

2. Because the hose 1 is locked from the inside by the internal expanding device 4 in the embodiment, after the hose 1 is locked, the internal expanding device 4 is not easily influenced by external force, is relatively stable and is not easily loosened, so that the interface part of the hose 1 is not easily leaked due to looseness.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an interior expanding hose coupling assembling for coupling hose, it includes connecting pipe, sleeve pipe and sets up the stagnant water portion of connecting pipe tip, stagnant water portion certainly the outside portion of connecting pipe is outwards protruding cyclic annularly, the sleeve pipe box is established outside stagnant water portion, the sleeve pipe with have clearance, its characterized in that between the stagnant water portion: the hose connecting assembly further comprises an inward expansion device arranged on the connecting pipe in a sliding mode and a functional connecting piece arranged on the connecting pipe and used for pushing the inward expansion device to the water stop portion, a first guide inclined plane which inclines from the outer surface of the connecting pipe to extend towards the outer peripheral surface of the water stop portion is arranged between the water stop portion and the inward expansion device, and the inward expansion device is sleeved on the connecting pipe and abuts against the first guide inclined plane;

the internal expanding device comprises a ring sleeve part, a locking part and a resisting part, wherein the ring sleeve part is sleeved outside the connecting pipe, the locking part is arranged outside the ring sleeve part and extends outwards, the resisting part is used for resisting the end part of the hose, and a gap is formed between the locking part and the sleeve.

2. An inwardly expanding hose coupling assembly as defined in claim 1, wherein: when the functional connecting piece pushes the internal expanding device to move towards the first guide inclined plane, the internal expanding device deforms and expands outwards under the guide of the first guide inclined plane.

3. An inwardly expanding hose coupling assembly as defined in claim 2, wherein: the functional connecting piece is in threaded connection with the connecting pipe.

4. An inwardly expanding hose coupling assembly as defined in claim 1, wherein: the first guide inclined plane is a conical surface.

5. An inwardly expanding hose coupling assembly as defined in claim 1, wherein: the locking part is in an annular shape protruding outwards.

6. An inwardly expanding hose coupling assembly as defined in claim 1, wherein: the locking part and the connecting pipe are perpendicular to each other.

7. An inwardly expanding hose coupling assembly as defined in claim 1, wherein: the water stopping part comprises an annular body part fixedly arranged with the connecting pipe and a sealing ring sleeved on the outer ring of the body part.

8. An inwardly expanding hose coupling assembly as defined in claim 7, wherein: and a second guide inclined plane which inclines from the outer surface of the connecting pipe to the outer peripheral surface of the water stopping part and extends is arranged between the end part of the connecting pipe and the water stopping part.

9. An inwardly expanding hose coupling assembly as defined in claim 8, wherein: the seal ring is arranged in a groove between the first guide inclined surface and the second guide inclined surface.