CN210860225U

CN210860225U - Non-detachable quick coupling

Info

Publication number: CN210860225U
Application number: CN201920934630.4U
Authority: CN
Inventors: 张辉明; 王杏娟
Original assignee: Linhai Yongsheng Auto Technology Co ltd
Current assignee: Linhai Yongsheng Auto Technology Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-06-26
Anticipated expiration: 2029-06-20

Abstract

The utility model belongs to the technical field of the joint technique and specifically relates to a quick-operation joint that is undetachable. This quick-operation joint of non-detachable, including hollow structure's casing, from the top down has set gradually sealing washer one, interior retaining ring, sealing washer two, outer retaining ring in this casing, constitutes double-deck sealing system, casing lower part side is equipped with the through-hole, outer retaining ring lateral wall is equipped with the opening that corresponds with this through-hole, has in this opening to be used for the fixed male joint of joint and with this through-hole complex elastic connection buckle. In the invention, the outer retainer ring and the shell, and the elastic connecting buckle and the male joint are respectively clamped, fixed and mounted conveniently; the elastic connecting buckle and the outer retainer ring are of an integrally formed structure, so that the production cost is low; in some complex pipeline connections, pipelines between gases and liquids which are irritant or harmful to human bodies are connected and conveyed through the quick connector, the situations that personnel are injured, other parts are affected in use and the like due to the fact that the pipelines are mistakenly disassembled in maintenance can be avoided, and certain safety is improved.

Description

Non-detachable quick coupling

Technical Field

The invention relates to the technical field of joints, in particular to a non-detachable quick joint.

Background

The quick connector is a connector which can realize the connection or disconnection of pipelines without tools; the quick installation device is mainly used for quick installation of gas and liquid pipelines.

Please refer to fig. 1, chinese utility model patent with publication number CN201787244U discloses a pipeline quick-operation joint, belongs to the joint field, including the casing, from the top down sets gradually sealing washer one in the casing cavity, interior retaining ring, sealing washer two, outer retaining ring, constitutes a sealing system, and the casing lower part sets up the through-hole, sets up in the through-hole and pulls out the buckle, pulls out the buckle and takes off the buckle by buckle button, buckle area, buckle fastener and constitute, and this pipeline joint has advantages such as easy dismounting, the leakproofness is good, long service life.

Above current quick-operation joint realizes joint male joint through pulling out the buckle, and the installation is convenient with the dismantlement, but need set up the production alone and pull out the mould of taking off the buckle, and manufacturing cost is high, and can not dismantle because of the medium reason of carrying between some pipelines, consequently need distinguish with the detachable pipeline and come to avoid the condition of mistake dismantlement.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a non-detachable quick connector which has the advantages of convenience in installation and low production cost and is suitable for the connection between pipelines which cannot be detached.

In order to achieve the advantages, the non-detachable quick coupling provided by the invention comprises a shell with a hollow structure, wherein a first sealing ring, an inner retainer ring, a second sealing ring and an outer retainer ring are sequentially arranged in the shell from top to bottom to form a double-layer sealing system.

In an embodiment of the invention, a limiting protrusion accommodated in the through hole is arranged on an outer side surface of the elastic connecting buckle, and a lower surface of the limiting protrusion is abutted against a lower surface of the through hole.

In one embodiment of the invention, the number of the elastic connecting buckles is two, and the two elastic connecting buckles are symmetrically arranged.

In one embodiment of the invention, the elastic connecting buckles extend upwards from the lower surface of the opening, and the distance between the two elastic connecting buckles gradually decreases upwards to form a structure in a shape of Chinese character 'ba'.

In one embodiment of the invention, the elastic connecting buckle and the outer retainer ring are integrally formed.

In an embodiment of the invention, the outer retainer ring is provided with a buckling part used for being buckled and connected with the shell and a limiting ring used for abutting against the bottom surface of the shell, and the inner surface of the shell is provided with a clamping groove matched with the buckling part.

In an embodiment of the present invention, the number of the fastening portions is two, and the two fastening portions are symmetrically disposed.

In one embodiment of the invention, the two buckling parts and the elastic connecting buckle are arranged at intervals, and the buckling parts are positioned above the elastic connecting buckle.

In one embodiment of the invention, the size of the opening is larger than the size of the through hole.

In one embodiment of the invention, the housing is provided with a hose connection portion provided with two or more annular cleats.

In the invention, the outer retainer ring and the shell as well as the elastic connecting buckle and the male joint are respectively clamped and fixed, so that the male joint cannot be detached after being connected and is stably connected; in some complex pipeline connections, pipelines between gases and liquids which are irritant or harmful to human bodies are connected and conveyed through the quick connector, so that the situations that personnel are injured, other parts are affected in use and the like due to the fact that the pipelines are mistakenly disassembled in maintenance can be avoided, and certain safety is improved.

In the invention, the outer retainer ring is provided with the opening corresponding to the through hole, the elastic connecting buckle for clamping and fixing the male connector is arranged in the opening, and the elastic connecting buckle and the outer retainer ring are of an integrally formed structure.

Drawings

Fig. 1 is a schematic structural diagram of a conventional pipeline quick coupling.

Fig. 2 is a schematic structural diagram of a non-detachable quick coupling according to a first embodiment of the present invention.

Fig. 3 shows an exploded view of the non-removable quick connector of fig. 2.

Fig. 4 is a schematic cross-sectional view of the non-removable quick connector of fig. 2.

Fig. 5 is a schematic cross-sectional view of the quick connector of fig. 2 in another orientation.

Fig. 6 is a schematic structural view of an outer retainer ring and an elastic connection buckle of the non-detachable quick coupling shown in fig. 3.

Fig. 7 is a schematic cross-sectional view of the outer retainer ring and the resilient connection clip of fig. 6.

Fig. 8 is a schematic cross-sectional view of the outer retainer ring and the resilient connection clip of fig. 6 in another orientation.

Detailed Description

To further explain the technical means and effects of the present invention for achieving the intended purpose of the invention, the following detailed description is given of the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 2-5, the non-detachable quick coupling according to the first embodiment of the present invention includes a hollow casing 1, and a first sealing ring 2, an inner retainer ring 3, a second sealing ring 4, and an outer retainer ring 5 are sequentially disposed in the casing 1 from top to bottom to form a double-layer sealing system.

The side surface of the lower part of the shell 1 is provided with a through hole 11, the side wall of the outer retainer 5 is provided with an opening 51 corresponding to the through hole 11, and the size of the opening 51 is larger than that of the through hole 11. The opening 51 is provided with an elastic connecting buckle 6 which is used for clamping and fixing the male connector and is matched with the through hole 11.

Referring to fig. 6-8, specifically, the number of the elastic connection buckles 6 is two, and the two elastic connection buckles 6 are symmetrically arranged. The elastic connecting buckles 6 extend upwards from the lower surface of the opening 51, and the distance between the two elastic connecting buckles 6 is gradually reduced upwards to form a structure like a Chinese character 'ba'.

Furthermore, the upper end of the elastic connection buckle 6 is thicker than the lower end of the elastic connection buckle 6, so that the elastic connection buckle 6 has good elasticity, and the installation of the outer retainer ring 5 and the shell 1 is facilitated.

Furthermore, the outer side surface of the elastic connecting buckle 6 is provided with a limiting bulge 61 accommodated in the through hole 11. After the outer retainer ring 5 is clamped and fixed with the shell 1, the lower surface of the limiting bulge 61 is mutually abutted with the lower surface of the through hole 11. The upper surface of the position restricting protrusion 61 has a guide slope 611.

Furthermore, the elastic connecting buckle 6 and the outer retainer ring 5 are integrally formed.

Further, the outer retainer 5 is provided with a buckling part 52 for buckling and connecting with the housing 1 and a limiting ring 53 for abutting against the bottom surface of the housing 1. The inner surface of the shell 1 is provided with a clamping groove 12 matched with the clamping part 52. The buckling part 52 is used for limiting the position of the outer retainer ring 5 which falls downwards to ensure the sealing ring by matching with the clamping groove 12, and the limiting ring 53 is used for limiting the depth of the outer retainer ring 5 which is arranged in the shell 1, so that the situation that the shell 1 is extruded and cracked due to too deep position is prevented.

Further, the inner diameter of the outer retainer 5 at the position where the opening 51 is provided is smaller than the inner diameter of the position where the fastening part 52 is provided, and a gap is formed between the upper end of the elastic connecting fastener 6 and the upper surface of the opening 51 to form the receiving groove 7. After the male connector is inserted, the elastic connecting buckle 6 clamps the card and the protrusion at the corresponding position of the male connector, and the card and the protrusion are positioned in the accommodating groove 7 at the moment.

Further, the number of the locking portions 52 is two, and the two locking portions 52 are symmetrically arranged.

Further, the two locking portions 52 and the elastic connection lock 6 are provided at intervals, and the locking portion 52 is located above the elastic connection lock 6.

Further, the housing 1 is provided with a hose connecting portion 15 for connecting a hose, and two or more annular beads 151 are provided on the hose connecting portion 15.

The theory of use of non-detachable quick-operation joint during the use, inserts the male joint from the bottom of casing 1, and elastic connection buckle 6 is strutted under the insertion of male joint and is entered into the holding tank until the card and the arch of male joint in, and elastic connection buckle 6 resets upper surface butt joint card and bellied lower surface make casing 1 fixed with the male joint. That is, the locking operation is achieved by simply inserting the male connector to the bottom during the operation.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a quick-operation joint of non-detachable, includes hollow structure's casing, from the top down has set gradually sealing washer one, interior retaining ring, sealing washer two, outer retaining ring in this casing, constitutes double-deck sealing system, its characterized in that, casing lower part side is equipped with the through-hole, outer retaining ring lateral wall is equipped with the opening that corresponds with this through-hole, has in this opening to be used for the fixed male joint of joint and with this through-hole complex elastic connection buckle.

2. The non-detachable quick coupling according to claim 1, wherein the outer side surface of the elastic connection buckle is provided with a limiting protrusion received in the through hole, and a lower surface of the limiting protrusion abuts against a lower surface of the through hole.

3. The non-detachable quick coupling of claim 2, wherein the number of the elastic connection buckles is two, and the two elastic connection buckles are symmetrically arranged.

4. The non-detachable quick coupling of claim 3, wherein the elastic connection buckles extend upwards from the lower surface of the opening, and the distance between the two elastic connection buckles gradually decreases upwards to form a structure like a Chinese character 'ba'.

5. The non-detachable quick coupling according to any one of claims 1 to 4, wherein the elastic connection clip is integrally formed with the outer retainer ring.

6. The non-detachable quick coupling according to claim 5, wherein the outer retainer ring has a locking portion for locking and connecting with the housing, and a stopper ring for abutting against the bottom surface of the housing, and the inner surface of the housing has a locking groove for engaging with the locking portion.

7. The non-detachable quick coupling of claim 6, wherein the number of the locking portions is two, and the two locking portions are symmetrically arranged.

8. The non-detachable quick coupling of claim 7, wherein the two locking portions and the elastic connection buckle are spaced from each other, and the locking portion is located above the elastic connection buckle.

9. The non-removable quick connector of claim 1, wherein the opening is sized larger than the through hole.

10. The non-removable quick connector according to claim 1, wherein the housing is provided with a hose connecting portion having two or more annular anti-slip protrusions thereon.