CN2150420Y

CN2150420Y - Quick-connecting high-pressure-resistant adaptor

Info

Publication number: CN2150420Y
Application number: CN 93203008
Authority: CN
Inventors: 李明义
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-16
Filing date: 1993-02-16
Publication date: 1993-12-22
Anticipated expiration: 2003-02-16

Abstract

The utility model relates to a pipe connector, in particular to the pipe connector which is suitable for requiring installation quickly and conveniently, and which can bear the high water pressure. The utility model comprises a locking screw cap and a main connecting pipe, wherein, the end surface of the main connecting pipe is a concave cone surface, and the outer circumference of the main connecting pipe has outer screw threads. Whereas outer bottom convex rings are arranged on the lower part of the outer screw threads. The cone surface is arranged on the lower side of a top end connecting ring of a locking screw cap, and the cone surface is arranged on the inner side of a bottom end. A double-inclined end surface with corresponding cooperation is arranged between the concave cone surface and the cone surface of a top end blocking ring of the locking screw cap. Inner teeth with teeth on an inner ring hole surface tighten rings. A tightening anti-leakage ring of which three convex rings are arranged on an inner wall is arranged in the outer bottom convex ring of the main connecting pipe. Therefore, the utility model has the advantages of firm connection and strong leak-proof performance.

Description

Quick-connecting high-pressure-resistant adaptor

The utility model relates to a kind of pipe joint, is particularly useful for requirement the pipe joint that makes things convenient for, can bear high hydraulic pressure rapidly is installed.

At present, the effect of pipe joint is the leakage that connects two adapters and prevent liquid or gas.Traditional pipe joint speed connects that the intensity limited tensile strength of the material (restriction) can be born intraluminal fluid or air pressure is restricted, and rubber sealing and working life in the pipe joint are all relatively poor.

Below in conjunction with Fig. 1 traditional pipe joint is described:

The pipe joint that is assembled among the three-dimensional joint A2 with an adapter A1 is an example; This has a upper end snail seat A21 to joint A2, can give locked engagement for blind nut A3; When taking over A1 insertion spiral shell seat A21 endoporus, assemble a leakage washer A4 between the two, the A1 external diameter surface is taken in contact in the top of this leakage washer A4, above leakage washer A4, set gradually a gasket ring A5 and a packing ring A6 in addition, and the top of packing ring A6 contacts with the top A31 inner face of cap A3, connects to take over A1 under the effect of extruding force.

The connection procedure of this traditional pipe joint: when cap A3 is screwed down, with make packing ring A6 stressed, move down, inner cone end face that its lower end arc presses gasket ring A5, under the responsive to axial force of the continuous backspin of cap A3, the reaction force of the inner cone end face of gasket ring A5, make packing ring A6 distortion, inwardly the outer surface of A1 is taken in extruding, the internal screw thread of its inwall (internal thread) with the interlock of adapter A1 outer surface, reach and be connected locking.But, the tensile strength limited (tensile strength of material is limited) of taking over A1 and three-dimensional joint A2, leak-stopping cushion rubber A4 sealing is poor, working life is low, gasket ring A5 and packing ring A6 makes and assembling trouble all simultaneously, and therefore, practicability is relatively poor.

In view of this, the purpose of this utility model provides a kind of speed and connects high pressure resistant pipe joint, makes respectively other part of pipe joint reasonably cooperate and be connected, and changes the leak-proof gasket structure shape, and the join strength and the leak resistance of raising pipe joint are convenient to installation simultaneously and are connected.

The purpose of this utility model is achieved in that it comprises a lock nut and main the adapter, and wherein, main adapter end face is that concave cone face, periphery are outside threads, and the outside thread below is the outer bottom bulge loop; Be that the conical surface, inboard, bottom also are the conical surfaces below the top baffle ring of lock nut; Between the conical surface of main concave cone face of taking over and lock nut top baffle ring, the diclinic end face with corresponding cooperation is set, and the toothed internal tooth packing of inner ring hole face ring; In the main outer bottom bulge loop of taking over, the packing leak-proof gasket that inwall is three bulge loops is set.

Owing to adopt such scheme: connects firm, anti-leakage is strong, can be suitable for the pipe joint of higher liquid or air pressure and prolong working life, make simultaneously and install rapidly, conveniently.

Description of drawings:

Fig. 1 is the structure sectional view of conventional pipe joint.

Fig. 2 is the utility model embodiment's a three-dimensional exploded view.

Fig. 3 is the structure sectional view of the utility model embodiment releasing orientation.

Fig. 4 is the structure sectional view of the utility model embodiment locking state.

Fig. 5 is the amplification view of the utility model embodiment's packing leak-proof gasket.

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

At first consult Fig. 2 to shown in Figure 5, the main part in addition of present embodiment comprises a lock nut 1, main adapter 4, internal tooth packing ring 2 and packing leak-proof gasket 3.

Main 4 the end face taken over is a concave cone face 40(vertex of a cone inverted cone surface below), have outside thread 41 on the excircle, inside and outside wall all has the outer bottom bulge loop 42 to the outer process circular shape below outside thread; The outside thread 41 of main adapter 4 is connected with the internal thread 11 of lock nut 1.

Lock nut 1 top has baffle ring 12, this above baffle ring 12 be the plane, below be the conical surface 13(vertex of a cone in the above), within it the inboard at the bottom end opening edge of screw thread 11 be the conical surface 14(vertex of a cone in the above).

Internal tooth packing ring 2 upper and lower end faces are respectively the conical surface and concave cone face (promptly being called the diclinic end face), the inner ring hole mask has thread 22, be used for wedging or promptly another adapter 5, in the place cutting one axial grooving space 21 of this ring 2, internal tooth packing ring 2 upper and lower end faces are respectively with the conical surface of corresponding lock nut 1 baffle ring 12 with mainly take over the wedging that matches of 4 concave cone face 40.

The periphery of packing leak-proof gasket 3 is the evagination arc surfaces that match with outer bottom bulge loop 42 inwalls of main adapter 4, and inwall to be three A to the internal projecting ring shape, B, C encircle radial dimension, A ring successively the B ring C ring, the ring of three different warp-wise sizes, under the outward force effect of footpath, contact with taking over 5 external diameter surfaces, form the sealed against leakage effect of the different degrees of tightness in three roads, make sealing reliable, when a certain ring or two ring inefficacies, this packing leak-proof gasket 3 still can use, and therefore, has prolonged working life.

Greater than outer bottom bulge loop 42 maximum outside diameters, and its end diameter is less than outer bottom bulge loop 42 maximum outside diameters at the conical surface 14 Outside diameters at the bottom end opening edge of the internal thread 11 of lock nut 1.Lock mainly when taking over 4 when lock nut 1, to lower compression outer bottom bulge loop 42, make packing leak-proof gasket 3 press to the outer wall that connects with 5, form the different sealing leak-stopping characteristics of compeling power of three-ring type along the inner conical surface 14 of lock nut 1.

When lock nut 1 is locked main when taking over 4, the conical surface 13 of shelves ring 12 and main 4 the concave cone face 40 of taking over, internal tooth packing ring 2 is placed in the middle of the above two, be out of shape behind internal tooth packing ring 2 pressurizeds, grooving space 21 dwindles or condensation, thread 22 is close to or wedging is being taken on 5 outer walls, thereby increases the connection power (raising join strength) of pipe joint; Promptly improve tensile strength.In addition, internal tooth packing ring 2 and packing leak-proof gasket 3 split out, and it is rapid, convenient that this pipe joint is installed.

Claims

1, a kind of speed connects high pressure resistant pipe joint and comprises a lock nut and main the adapter, it is characterized in that: main to take over end face be that concave cone face, periphery are outside threads, and the outside thread below is the outer bottom bulge loop; Be that inboard, conical surface bottom also is the conical surface below the top T-Ring of lock nut; Between the conical surface of main concave cone face of taking over and lock nut top baffle ring, the diclinic end face with corresponding cooperation is set, and the toothed internal tooth packing of inner ring hole face ring; In the main outer bottom bulge loop of taking over, the packing leak-proof gasket that inwall is three bulge loops is set.

2, connect high pressure resistant pipe joint by the described speed of claim 1, it is characterized in that: three bulge loop radial dimensions of above-mentioned packing leak-proof gasket increase from top to bottom.

3, connect high pressure resistant pipe joint by the described speed of claim 1, it is characterized in that: the conical surface of the degree end inboard of above-mentioned lock nut, its Outside diameter is greater than above-mentioned outer bottom bulge loop maximum diameter, and its end diameter is less than above-mentioned outer bottom bulge loop maximum diameter.

4, connect high pressure resistant pipe joint by the described speed of claim 1, it is characterized in that: above-mentioned internal tooth packing ring has an axial grooving space.