CN205978920U - Water pump with quick -operation joint - Google Patents

Abstract

The utility model discloses a water pump with quick -operation joint, set up including quick connector with on fluid chamber with quick connector complex socket the last cover of quick connector is equipped with and ends the retaining ring the cover is equipped with the bush on ending a retaining ring, the bush has a drawing of patterns tapering bush circumference interval is provided with the jack catch the socket inner wall with be provided with O type circle between the quick connector, the socket internal surface be provided with with bush drawing of patterns tapering matched with tapering, adopt the socket internal surface set up with bush drawing of patterns tapering matched with tapering can obtain better contact surface, and fluid pressure in the fluid chamber that can not only the evenly distributed jack catch receives guarantees socket validity, in addition the outer terminal surface of socket with bush outer end interfacial is provided with apart from D, effectively avoids liquid hypertonia to arouse bush slide the defect of socket.

Description

A kind of water pump with snap joint

Technical field

This utility model belongs to booster pump, self-priming pump technical field, and the membrane pump being particularly used on water purifier quickly connects Header structure.

Background technology

Membrane pump is more special a kind of form in displacement pump, and it relies on agitating back and forth and changing stream of a diaphragm Sucking and drain, membrane pump includes water inlet and outlet to body room volume, with quickly connecing on water inlet and outlet Head connects, but this structure cannot be born higher pressure at present, and internal pressure reaches will leak during 2.5Mpa.

Based on drawbacks described above, a kind of fast inserting structure of the membrane pump being currently known, by by the one of bushing and quick connector Body part inserts socket, due to the setting of claw, when bushing is subject to the power along socket outward direction, in claw and socket There is between wall very big damping, prevent its abjection.But, because bushing has demoulding taper in itself, lead to fast patch plug with During socket cooperation, the gap between the contact surface that taper leads to so that bushing can deflect after stress, so each claw and moulding The stress of part inwall will be different, and the claw of stress maximum will be ejected, and causes "O"-ring inefficacy leak.

Utility model content

It is not enough that this utility model is directed to prior art, provides a kind of water pump with snap joint, can make water inlet with The fast patch plug of outlet and socket work more reliable.

For solving above-mentioned technical problem, this utility model is addressed by following technical proposals：A kind of carrying quickly connects The water pump of head, the socket with the cooperation of described quick connector arranging including quick connector and in fluid chamber, in described fast grafting Be arranged with to stop and retaining ring on head, described stop be arranged with bushing on retaining ring, described bushing has demoulding taper, in described bushing It has been provided at circumferentially spaced claw, between described socket inwall and described quick connector, be provided with O-ring, described socket inner surface It is provided with the taper matching with described bushing demoulding taper.

It is preferred that being provided with apart from D between described socket outer face and described bushing outer face, by setting in such scheme Put between both ends of the surface setting distance, be prevented effectively from liquid pressure too high when not cause bushing sliding to deviate from socket because of plastic strength Defect.

In such scheme it is preferred that described apart from D be 0.5～2mm.

It is preferred that the opposite direction that described claw inserts the direction of socket to described bushing tilts it is ensured that inserting in such scheme Mouth effectiveness.

This utility model compared with prior art, has the advantages that：Using socket inner surface setting and described lining The set taper that matches of demoulding taper, it is possible to obtain preferably contact surface is so that bushing deflects after stress, so as to It is evenly distributed the fluid interior fluid pressure that claw is subject to it is ensured that socket effectiveness, and outside socket outer face and described bushing Be provided between end face apart from D, be prevented effectively from liquid pressure too high when because plastic strength unavoidably cause bushing sliding abjection socket Defect.

Brief description

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

Fig. 2 is side of the present utility model structure decomposition figure.

Fig. 3 is adapter bush and claw cooperation position sectional view.

Fig. 4 is aminoacyl site partial enlarged drawing.

Specific embodiment

With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings：Ginseng

As shown in Fig. 1 to Fig. 4, a kind of water pump with snap joint, arrange including quick connector 1 with fluid chamber 2 With described quick connector cooperation socket 3, described quick connector 1 is arranged with and stops retaining ring 4, retaining ring 4 in described stopping On be arranged with bushing 5, described bushing 5 has demoulding taper, has been provided at circumferentially spaced claw 51 in described bushing 5, described insert It is provided with O-ring 6, described socket 3 inner surface setting has and described bushing 5 demoulding cone between mouth 3 inwalls and described quick connector 1 Spend the taper matching.Be provided with apart from D between described socket 3 outer face and described bushing 5 outer face, described apart from D be 0.5～ 2mm, the opposite direction that described claw 51 inserts the direction of socket to described bushing 5 tilts.

The taper matching with described bushing 5 demoulding taper is had using socket 3 inner surface setting, it is possible to obtain preferably connect Contacting surface so that bushing does not deflect after stress, so as to being evenly distributed the fluid interior fluid pressure that claw is subject to it is ensured that Socket effectiveness, and be provided with apart from D between socket 3 outer face and described bushing 5 outer face, it is prevented effectively from liquid pressure too high When not cause bushing 5 sliding to deviate from the defect of socket 3 because of plastic strength.

Protection domain of the present utility model includes but is not limited to embodiment of above, and protection domain of the present utility model is to weigh Sharp claim is defined, and any replacement that those skilled in the art that this technology is made is readily apparent that, deformation, improvement each fall within Protection domain of the present utility model.

Claims (4)

1. a kind of water pump with snap joint, including quick connector（1）With in fluid chamber（2）Upper setting with described fast grafting The socket of head cooperation（3）, in described quick connector（1）On be arranged with to stop and retaining ring（4）, retaining ring in described stopping（4）Upper sheathed There is bushing（5）, described bushing（5）There is demoulding taper, in described bushing（5）It has been provided at circumferentially spaced claw（51）, described Socket（3）Inwall and described quick connector（1）Between be provided with O-ring（6）It is characterised in that：Described socket（3）Inner surface sets It is equipped with and described bushing（5）The taper that demoulding taper matches.

2. a kind of water pump with snap joint according to claim 1 is it is characterised in that described socket（3）Outer face With described bushing（5）It is provided with apart from D between outer face.

3. a kind of water pump with snap joint according to claim 2 it is characterised in that described apart from D be 0.5～ 2mm.

4. a kind of water pump with snap joint according to claim 1 it is characterised in that：Described claw（51）To described Bushing（5）The opposite direction in the direction of insertion socket tilts.