CN2426938Y - Improved inserting pipe joint - Google Patents

Abstract

The utility model discloses an improved inserting pipe joint, consisting of a joint body (1) which is provided at least one plug jack inserted with a tube (8). A dentiform claw ring (2), a spacer ring (3), a sealing ring (4) and a clamp ring (6) are arranged in end opening of the axial and lateral segment of the plug jack along an axial direction from inner to outer respectively. The clamp ring (6) is provided with a fracture whose front end face presents an awl face shape. A clamp cap (7) is connected by screw threads at the periphery of the end hole of the joint body (1). The clamp cap (7) presents a fitted awl face shape at the position corresponding to the awl face of the clamp ring (6). A filling ring (5) is also arranged between the sealing ring (4) and the clamp ring (6). Compared with the prior art, the utility model increases a fixing force to the tube in radical direction, and the connection of the tube and the pipe joint are made more firmer.

Description

The modified model inserting type pipe joint

The utility model relates to a kind of pipe joint, particularly a kind of modified model inserting type pipe joint.

Pipe spreading when pipe joint is mainly used in pipe laying, changed course, branch, two logical according to how much being commonly called as of branch, threeway, various pipe joints such as four-way, between traditional pipe joint and the pipe by being threaded, need on-the-spot during installation to the pipe threading, and need use instruments such as pipe tongs, it is very inconvenient not only to install and use, and screw connection point is easy to generate wearing and tearing or corrosion and causes leakage, for this reason, inserting type pipe joint arises at the historic moment, as the patent No. is a kind of setting tool that need not the utility model patent " new plug-in pipe joint " of 98205694.X discloses, only need pipe is inserted the pipe joint that gets final product, it " includes a joint body; joint body is provided with more than one and the pipe jack of plug-in mounting mutually; it is characterized in that: put profile of tooth dog collar and Sealing successively vertically in the stomidium of the axial segmentum laterale of jack; end cap spins mutually with the outside thread at the stomidium place of joint body and profile of tooth dog collar and Sealing located vertically and compresses; some intervals shape of the profile of tooth dog collar radially calvus of convex fastens with the outer surface that is inserted into the pipe in the jack and with the pipe axially locating, contact with the outer surface of pipe containing and pipe radially sealed of Sealing." when " behind the pipe insertion tube joint, the pipe front end is spacing by the convex shoulder in the header body, the tooth of profile of tooth dog collar is strutted firmly promptly pipe by pipe, compress O-ring seals, pad, profile of tooth dog collar by end cap (convex shoulder), pipe just organically combines as a whole with pipe joint, can not move axially ".Yet this design proposal also exists such defective: promptly end cap is to turn over annular convex shoulder with axial compression O-ring seals, pad, profile of tooth dog collar by its convex, sealing no doubt is out of question, but the pipe fixing frictional force that still only relies between profile of tooth dog collar and the tube wall radially, thereby when exerting oneself tube drawing, pipe still might be pulled out pipe joint.

The purpose of this utility model just is to provide at above-mentioned prior art present situation a kind of and more firm modified model inserting type pipe joint of being connected of pipe.

The purpose of this utility model is achieved in that the modified model inserting type pipe joint includes joint body, body is provided with the jack that at least one and pipe plug, in the stomidium of the axial segmentum laterale of jack, be disposed with profile of tooth dog collar, spacer ring, seal ring vertically from inside to outside, it is characterized in that outside seal ring, also being provided with a hold-down ring, this hold-down ring has a fracture, and its front-end face is conical surface shape, the periphery at the joint body stomidium place clamping cap that then has been threaded, this clamping cap also are the conical surface shape that cooperates with it at the conical surface place of corresponding hold-down ring.In addition, seal, also can between seal ring and hold-down ring, set up a packing ring for making the abundant better deformation that the back seal ring is installed.

Compared with prior art, the utility model utilizes the cone match between clamping cap and the hold-down ring, after screwing clamping cap, both provided axial impacting force to hold-down ring, seal ring and profile of tooth dog collar, provide impacting force radially to hold-down ring again, because hold-down ring has fracture, thereby meeting produces deformation and tightly wales pipe under this radial compaction power effect.Therefore, compared with prior art, the utility model has increased by one to pipe retention force radially, makes both connections more firm.

Description of drawings:

Fig. 1 is the utility model embodiment one structural representation (local, partly cut open).

Fig. 2 is that the A of profile of tooth snap ring among Fig. 1 is to view.

Fig. 3 is that the A of hold-down ring among Fig. 1 is to view.

Fig. 4 is the utility model embodiment two structural representation (local, partly cut open).

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 3, be the utility model embodiment one, include joint body 1, body is provided with the jack that at least one and pipe 8 plug, in the stomidium of the axial segmentum laterale of jack, be disposed with profile of tooth dog collar 2 vertically from inside to outside, spacer ring 3, O-ring seals 4, packing ring 5 and hold-down ring 6, this hold-down ring has a fracture 61, as shown in Figure 3, and its front-end face is conical surface shape, the periphery at the joint body 1 stomidium place clamping cap 7 that then has been threaded, this clamping cap 7 also is the conical surface shape that cooperates with it at the conical surface place of corresponding hold-down ring 6, fit for both in the present embodiment.

During use, earlier profile of tooth dog collar 2, spacer ring 3, O-ring seals 4, packing ring 5 and hold-down ring 6 are packed in the joint body, screw on clamping cap 7 then, but do not screw, the position that retreats about half-turn when touching with hold-down ring 6 to be threaded to is good, pipe 8 is directly inserted again, and screws clamping cap 7 at last.

Packing ring 5 in the foregoing description mainly is in order to make the seal ring 4 abundant deformation after the installation, but practice shows that omit this packing ring 5, hold-down ring 6 also can directly compress seal ring 4 and make its deformation, be enough to reach sealing purpose, be the embodiment two who saves behind the packing ring 5 as shown in Figure 4.

Claims (2)

1. modified model inserting type pipe joint, include joint body (1), body is provided with the jack that at least one and pipe (8) plug, in the stomidium of the axial segmentum laterale of jack, be disposed with profile of tooth dog collar (2) vertically from inside to outside, spacer ring (3), seal ring (4), it is characterized in that outside seal ring (4), also being provided with a hold-down ring (6), this hold-down ring (6) has a fracture, and its front-end face is conical surface shape, the periphery at joint body (1) the stomidium place clamping cap (7) that then has been threaded, this clamping cap (7) also are the conical surface shape that cooperates with it at the conical surface place of corresponding hold-down ring (6).

2. modified model inserting type pipe joint as claimed in claim 1 is characterized in that also being provided with a packing ring (5) between described seal ring (4) and hold-down ring (6).