CN201232815Y

CN201232815Y - Fast pipe joint

Info

Publication number: CN201232815Y
Application number: CNU2008200389429U
Authority: CN
Inventors: 蒋辉; 周忠良
Original assignee: 蒋学真
Current assignee: Changzhou Tenglong Auto Accessories Manufacturing Co Ltd
Priority date: 2008-07-31
Filing date: 2008-07-31
Publication date: 2009-05-06
Anticipated expiration: 2018-07-31

Abstract

The utility model relates to the field of metal pipe connection, in particular to a quick pipe connector used for the automobile air conditioner pipeline connection. The quick pipe connector comprises a female connector, a male connector and a buckle, wherein the end part of the female connector is in a funnel shape, necked out and raised; two parallel annular sealing grooves are arranged at the end part of the male connector; an O-shaped sealing ring is arranged in each groove; a step with the diameter being larger than that of the end part of the male connector is arranged in the position of the groove which is relatively near to the end part of the male connector; the end part of the male connector is inserted into the funnel at the end part of the female connector; the whole end part of the male connector and the female connector which are integrally assembled is arranged in the buckle which has fixing effect. The quick pipe connector has the advantages that the assembly can be performed without any special tools, the assembly time is short, the maintenance is convenient, the sealing is reliable, the slow leakage caused by screw wear can not be worried about during the operation process, the structure is simple, and the cost is reduced.

Description

Quick coupling

Technical field

The utility model relates to metal tubes and connects the field, especially a kind of quick coupling that is used for the connection of car air conditioner pipeline.

Background technique

At present, connecting between the common pipeline that uses is that an end is nut, and an end is that bolt type connects.Connect with the generation of tightening mutually of bolt by nut during connection.Consumed time was longer when this traditional connecting mode assembled, and effect after connecting and workman's skilled program relation is very big; Owing to be that nut bolt connects, in use also have the possibility of sliding tooth, thereby cause leakage, and be that later maintenance, replacing brought very big inconvenience.

The model utility content

The technical problems to be solved in the utility model is: when overcoming the assembling of traditional connecting mode consumed time long, be not easy to problems such as maintenance and sealing effect be bad, the utility model provides a kind of quick coupling.

The technological scheme that its technical problem that solves the utility model adopts is: a kind of quick coupling, have negative joint and male connector, also has buckle, the end of negative joint is the bell mouth shape and the projection of turning up, the male connector end has twice ring packing groove arranged side by side, be provided with the O RunddichtringO in the per pass groove, the groove contiguous place far away relatively from the male connector end is provided with the step of diameter greater than the male connector end diameter, insert in the horn mouth of negative joint end the male connector end, is assembled into the male connector of one and the whole end of negative joint and has been arranged in the buckle of fixation.

For the ease of loading and unloading, buckle is made up of the buckle lid and the snap seats that are rotatably connected, the sectional shape of buckle lid and snap seats is suitable with the sectional shape of the end of male connector that is assembled into one and negative joint, and buckle lid and snap seats two ends close end are provided with the curve bath of indent.

The beneficial effects of the utility model are: must any special tools during assembling, and installation time is short, is convenient to maintenance, and sealing is reliable, and using process does not worry that the sliding tooth of screw thread causes chronic leakage, and simple in structure, cost reduces.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

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

Fig. 2 is a pipeline negative joint structural representation.

Fig. 3 is a pipeline male connector structural representation.

Fig. 4 is the buckle structure schematic representation.

Among the figure: 1. negative joint, 2. male connector, 21. grooves, 22. steps, 3. buckle, 31. buckles lid, 32. snap seats, 33. curve baths, 4.O RunddichtringO.

Embodiment

As Fig. 1,2, shown in 3, a kind of most preferred embodiment of quick coupling, have negative joint 1 and male connector 2, also has buckle 3, the end of negative joint 2 is the bell mouth shape and the projection of turning up, male connector 2 ends have twice ring packing groove 21 arranged side by side, be provided with O RunddichtringO 4 in the per pass groove 21, the groove 21 contiguous places far away relatively from male connector 2 ends are provided with the step 22 of diameter greater than male connector 2 end diameter, insert in the horn mouth of negative joint 1 end male connector 2 ends, is assembled into the male connector 2 of one and the whole end of negative joint 1 and has been arranged in the buckle 3 of fixation.

As shown in Figure 4, buckle 3 is made up of the buckle lid 31 and the snap seats 32 that are rotatably connected, the sectional shape of buckle lid 31 and snap seats 32 is suitable with the sectional shape of the end of male connector 2 that is assembled into one and negative joint 1, and buckle lid 1 and snap seats 2 two ends close ends are provided with the curve bath 33 of indent.

The assembly process of quick coupling is: process two road ring packing grooves 21 at male connector 2 front ends, place O type circle 4 in the groove; Metal tube negative joint 1 front end expander, caliber can make the effective sealing of O type circle 4 generations be as the criterion with male connector 2 insertion post gaps behind the expander, there is a horn mouth end, when male connector 2 is inserted to negative joint 1 bottom, the whole head that will assemble is again packed in the buckle 3, and the step 22 of male connector 2 is stuck in the curve bath 33 of buckle 3, plays the role of positioning, male connector 2 can't be skidded off from negative joint 1, thereby finish the connection of pipeline.Whole assembly process must not adopt two road O type circles by any instrument, connects fast the reliable sealing purpose thereby reached.

Claims

1. quick coupling, have negative joint (1) and male connector (2), it is characterized in that: also have buckle (3), negative joint (2) end is the bell mouth shape and the projection of turning up, male connector (2) end has twice ring packing groove (21) arranged side by side, be provided with O RunddichtringO (4) in the per pass groove (21), groove (21) the contiguous place far away relatively from male connector (2) end is provided with the step (22) of diameter greater than male connector (2) end diameter, insert in the horn mouth of negative joint (1) end male connector (2) end, is assembled into the male connector (2) of one and the whole end of negative joint (1) and has been arranged in the buckle (3) of fixation.

2. a kind of quick coupling according to claim 1, it is characterized in that: described buckle (3) is made up of the buckle lid (31) and the snap seats (32) that are rotatably connected, the sectional shape of buckle lid (31) and snap seats (32) is suitable with the sectional shape of the end of male connector (2) that is assembled into one and negative joint (1), and buckle lid (1) and snap seats (2) two ends close end are provided with the curve bath (33) of indent.