Inside and outside sealed plug-in pipe joint
(1) technical field:
The utility model relates to inserting type pipe joint.
(2) background technique:
At present, connect the inserting type pipe joint of usefulness between the pipe owing to take into account extracting fast of pipe, thus can only sealing be set at the port of pipe, complex structure not only, and sealing effect is poor.
(3) summary of the invention:
At above the deficiencies in the prior art, the utility model provides a kind of inside and outside sealed plug-in pipe joint of simple in structure, good airproof performance.
The solution that the utility model adopts is:
Inside and outside sealed plug-in pipe joint is made up of fittings body, clamping mechanism and sealed cap, and clamping mechanism is installed between fittings body and the sealed cap, and fittings body and sealed cap link together; The cylindrical of sealed cap is provided with the external sealed groove, is provided with interior seal groove in the endoporus, is provided with seal ring in the seal groove.
The bottom surface of seal groove is a conical surface in the sealed cap.
Endoporus one end of fittings body is a conical surface.Clamping mechanism adopts the structure of existing inserting type pipe joint.
Sealing between the utility model employing pipe joint part and the sealing between pipe joint and the pipe, the inside and outside dual sealing concentrates on part of sealed cap, and is simple in structure, good sealing effect.
(4) description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Wherein: 1, fittings body, 2, snap ring, 3, seal ring, 4, sealed cap, 5, seal ring, 6, seal ring, 7, pipe
Accompanying drawing has provided structural representation of the present utility model.This pipe joint is made up of fittings body 1, snap ring 2 and sealed cap 4, and snap ring 2 is installed between fittings body 1 and the sealed cap 4, and fittings body 1 and sealed cap 4 are by being threaded togather.Chucking pipe 7 when snap ring 2 is used for fittings body 1 and is connected with sealed cap 4 also can adopt other chucking and the disengagement structure of existing inserting type pipe joint.Sealed cap 4 adopts screw thread to be connected with fittings body 1, and convenient disassembly has guaranteed connection reliability and mechanical strength.Two interior seal grooves and an external sealed groove are arranged on the sealed cap 4, and its left end has inner conical surface, with the reliable firm coupling mechanism force of having guaranteed pipe that cooperates of the male cone (strobilus masculinus) of snap ring 2.Realize simple and effective external sealed by O RunddichtringO 3 between external sealed groove and the fittings body 1; the internal conical surface of fittings body 1 right-hand member is along with screwing of sealed cap 4 can compress O RunddichtringO 3 gradually; strengthened sealing; when assembling, protected seal ring not to be damaged again; taken into account axial and sealing radially, sealed more reliable.Realize interior sealing by O RunddichtringO 5 and 6 between interior seal groove and the pipe 7, the bottom surface of two interior seal grooves is a conical surface, and its width suitably strengthens, and has made things convenient for assembling.Especially after fittings body 1 passes through pressure medium, the working pressure of medium is pressed onto medium to produce on the left side of O RunddichtringO moving to the right, and the bottom land internal conical surface of seal groove diameter is more little more to the right, increase along with pressure, the O RunddichtringO also increases the radial pressure of pipe 7, thereby improved the sealing effect between sealed cap 4 and the pipe 7, after the wearing and tearing of O RunddichtringO, had the effect of automatic compensation sealing.