CN203533048U

CN203533048U - Rapid pipe joint

Info

Publication number: CN203533048U
Application number: CN201320690190.5U
Authority: CN
Inventors: 李国辉; 牛燕义
Original assignee: BEIJING YINGBANGTE ENERGY TECHNOLOGY Co Ltd
Current assignee: BEIJING YINGBANGTE ENERGY TECHNOLOGY Co Ltd
Priority date: 2013-11-05
Filing date: 2013-11-05
Publication date: 2014-04-09
Anticipated expiration: 2023-11-05

Abstract

The utility model relates to the technical filed of pipe devices, in particular to a rapid pipe joint which comprises a shell. A containing cavity for inserting and connecting an external pipe is formed inside the shell, a sealing gasket, a transition gasket, a check gasket and an isolation gasket are sequentially sleeved on the pipe along the inserting direction of the pipe and arranged in the containing cavity, the outer diameter of the sealing gasket is larger than the inner diameter of the shell, the inner diameter of the sealing gasket is smaller than the outer diameter of the pipe, the transition gasket is used for isolating the sealing gasket from the check gasket, annular teeth are arranged on the check gasket and extend along the axial direction of the pipe towards the inserting direction of the pipe, the inner diameters of the annular teeth are gradually reduced along the inserting direction of the pipe, the inner diameter of the tooth end of each annular tooth is smaller than the outer diameter of the pipe, and the isolation gasket is used for isolating the check gasket from the inner wall of the shell. The rapid pipe joint has the advantages that the rapid pipe joint is firmly connected with the pipe, not easy to fall off, reasonable in design, simple in structure and rapid in connection, and leakage is avoided.

Description

A kind of speed pipe joint

Technical field

The utility model relates to a kind of pipe fitting equipment technical field, particularly a kind of speed pipe joint.

Background technique

At present in engineering construction, for the connection of PE tubing pipeline, generally adopt the modes such as hot melten type connection, cartridge connection, FERRULETYPE connection.When Specific construction operates, this type of pipeline Placement also needs a series of supplementary equipment, for example hot-melting machine, card pressing tongs, cutting ferrule spanner etc.Fitting operation step is numerous and diverse, has certain danger simultaneously, and installer must have high work quality, just can guarantee the installation quality that in engineering, pipe fitting is connected with joint.Due to a series of assistant tool of needs, so when pipe fitting joint or retubing joint are installed, can be subject to the restriction of operating space, especially the position such as furred ceiling or corner, not only inconvenient operation, also wastes the valuable engineering time, even affects integrated engineering progress.

In order to overcome the above problems, the utility model has been done useful improvement.

Model utility content

(1) technical problem that will solve

The purpose of this utility model is to have overcome prior art middle joint structure inconvenient shortcoming is installed, and firmly speed pipe joint of a kind of connection tubing is provided.

(2) technological scheme

The utility model is achieved through the following technical solutions:

A kind of speed pipe joint, comprise housing, the inside of described housing form one for outside tubing, insert and connect hold cavity, described in hold in cavity and be provided with along the direction of insertion of described tubing and be set in successively seal washer, transition packing ring, check washer and the spacer ring on described tubing;

The external diameter of described seal washer is greater than the internal diameter of described housing, and the internal diameter of described seal washer is less than the external diameter of described tubing;

Described transition packing ring, for keeping apart described seal washer and described check washer;

Described check washer is provided with the ring tooth axially extending to the direction of insertion of described tubing along described tubing, and the internal diameter of described ring tooth reduces gradually along the direction of insertion of described tubing, and the internal diameter at the increment place of described ring tooth is less than the external diameter of described tubing;

Described spacer ring, for keeping apart the inwall of described check washer and described housing.

Further, the bearing of trend of described ring tooth and described tubing axial becomes miter angle.

Further, the internal diameter of described transition packing ring is less than or equal to the external diameter of described tubing,

The external diameter of close described check washer one side of described transition packing ring is less than or equal to the internal diameter of described check washer, on the outer surface of close described seal washer one side of described transition packing ring, there is the collar flange extending radially outwardly, the external diameter of described collar flange be greater than described check washer internal diameter.

Further, described check washer and described ring tooth are integral.

Further, described check washer and described ring tooth are stainless steel and make.

(3) beneficial effect

Compare with product with prior art, the utility model has the following advantages:

1, with being connected firmly of tubing, difficult drop-off, and good seal, non-leakage;

2, connect fast;

3, reasonable in design, simple in structure.

Accompanying drawing explanation

Fig. 1 is exploded perspective view of the present utility model.

In accompanying drawing, the list of parts of each label representative is as follows:

1, housing, 2, hold cavity, 3, tubing, 4, seal washer, 5, transition packing ring, 6, check washer, 7, spacer ring, 8, enclosing cover,

51, collar flange,

61, ring tooth, 61a, increment.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is made a detailed explanation.

Speed pipe joint as shown in Figure 1, comprise housing 1, the inside of housing 1 form one for outside tubing 3, insert and connect hold cavity 2, hold in cavity 2 and be provided with along the direction of insertion of tubing and be set in successively seal washer 4, transition packing ring 5, check washer 6 and the spacer ring 7 on tubing 3;

The external diameter of seal washer 4 is greater than the internal diameter of housing 1, and the internal diameter of seal washer 1 is less than the external diameter of tubing 3; That is to say, outmost one deck is seal washer 4, by seal washer 4, comes the gap between seal casinghousing and tubing 3.

First introduce check washer 6 below, its effect is to prevent from being connected into the tubing 3 of speed pipe joint to tubing, to extract direction play and get loose, the structure of the utility model check washer 6 is, check washer 6 is provided with the ring tooth 61 axially extending to the direction of insertion of tubing along tubing 3, the internal diameter of ring tooth 61 reduces gradually along the direction of insertion of tubing 3, and the internal diameter at the increment 61a place of ring tooth 61 is less than the external diameter of tubing 3, that is to say, tubing 3 inserts in the middle of check washer 6, the increment 61a of ring tooth 61 is just stuck on the outer wall of tubing 3, if the oriented trend of extracting direction play of tubing 3, because the internal diameter of ring tooth 61 is that direction of insertion along tubing reduces gradually, that is to say that ring tooth 61 tilts, the bearing of trend that tooth 61 can be preferably encircled at this tilt angle and tubing 3 axial becomes miter angle, angle A in Fig. 1 for example, encircle so tooth 61 and can produce a reverse obstruction power to tubing 3, stop the outside play of tubing 3, realized non-return effect, guarantee being connected firmly of tubing 3 and speed pipe joint, difficult drop-off.Above-mentioned check washer simple in structure, but actual Drop-proof is effective, and also low being easy to of cost realized.Here the packing ring of check washer preferably all adopts stainless steel with ring tooth, and integral one-step molding.

Transition packing ring 5 is between check washer 6 and seal washer 4, for isolating seal packing ring 4 and check washer 6; Transition packing ring 5 can preferably make shape below, the internal diameter of transition packing ring 5 is less than or equal to the external diameter of tubing 3, the external diameter of close check washer 6 one sides of transition packing ring 5 is less than or equal to the internal diameter of check washer 6, on the outer surface of close seal washer 4 one sides of transition packing ring 5, there is the collar flange 51 extending radially outwardly, the external diameter of collar flange 51 be greater than check washer 6 internal diameter.That is to say, check washer 6 can be enclosed within on the face that the diameter of transition packing ring 5 is less than or equal to, also lean against on the collar flange 51 of transition packing ring 5 simultaneously, making to be like this equivalent to the part of check washer 6 by transition packing ring 5 is set on tubing 3, what therefore the diameter of check washer 6 can be done is slightly larger, be more conducive to arrange the angle of inclination of ring tooth 61, now by collar flange 51, will between check washer 6 and seal washer, separate, this is because check washer preferably adopts stainless steel to make, prevent that check washer 6 from directly contacting with seal washer 6, causes wearing and tearing.

Spacer ring 7, for isolating the inwall of check washer 6 and housing 1.That is to say, object is also to prevent that check washer is along tubing direction of insertion play, and then occurs directly to contact with the inwall of housing 1, produces wearing and tearing.

Finally, housing 1 outer surface is provided with outside thread, then twists thereon and fix with tapped enclosing cover 8, and the Nell wall of enclosing cover 8 is provided with the collar flange extending radially inwardly, when tightening enclosing cover 8, this collar flange just can compress each layer of packing ring recited above from a side.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a speed pipe joint, comprise housing, the inside of described housing form one for outside tubing, insert and connect hold cavity, it is characterized in that: described in hold in cavity and be provided with along the direction of insertion of described tubing and be set in successively seal washer, transition packing ring, check washer and the spacer ring on described tubing;

2. speed pipe joint according to claim 1, is characterized in that: the bearing of trend of described ring tooth and described tubing axial becomes miter angle.

3. speed pipe joint according to claim 1, is characterized in that: the internal diameter of described transition packing ring is less than or equal to the external diameter of described tubing,

The external diameter of close described check washer one side of described transition packing ring is less than or equal to the internal diameter of described check washer, on the outer surface of close described seal washer one side of described transition packing ring, have the collar flange extending radially outwardly, the external diameter of described collar flange is greater than the internal diameter of described check washer.

4. according to the arbitrary described speed pipe joint of claims 1 to 3, it is characterized in that: described check washer and described ring tooth are integral.

5. according to the arbitrary described speed pipe joint of claims 1 to 3, it is characterized in that: described check washer and described ring tooth are stainless steel and make.