CN103486272B

CN103486272B - Pipeline connects the seal ring used

Info

Publication number: CN103486272B
Application number: CN201310466726.XA
Authority: CN
Inventors: 齐向东
Original assignee: Taiyuan Rongsheng Science & Technology Co Ltd
Current assignee: Taiyuan Rongsheng Science & Technology Co Ltd
Priority date: 2013-10-09
Filing date: 2013-10-09
Publication date: 2015-08-19
Anticipated expiration: 2033-10-09
Also published as: CN103486272A

Abstract

A kind of pipeline connects the seal ring used, belong to seal ring field, feature is in the chamber, hole of rubber seal, be provided with turriform circular section spring or turriform flat square section spring, the arc surface adapted with turriform circular section spring or the plane adapted with turriform flat square section spring are made in chamber, the hole inner top of rubber seal and bottom, the size relationship of the cross section of rubber seal is: lower edge width equals the width of seal groove on connecting tube, outer rim height is 1.1 ~ 1.2 times of the seal groove degree of depth on connecting tube, inner edge height is 1.1 ~ 1.4 times of outer rim height, lower edge width is 1.05 ~ 1.4 times of upper limb width.Advantage adopts turriform spring structure, elastic deformation amount increases, be applicable to the large pipeline of required regime of elastic deformation connect, can forever provide stable pre-tightening tension, guarantee the initial tension needed for rubber seal selfsealings, and this rubber seal fatigue resistance is better than traditional gum seal ring.

Description

Pipeline connects the seal ring used

Technical field

The invention belongs to seal ring field, be specifically related to a kind of railway vehicle air conduit and connect the seal ring used.

Background technique

At present, it is that sectional shape is E type, the rubber seal of O type, rectangle that domestic and international railway vehicle air conduit connects the seal ring used, its shortcoming has grown service time fatigue, aging, elasticity loss, seal failure can occur, the patent No. being illustrated in figure 1 previously application is " air conduit connects the seal ring used " of ZL 2,013 2 0137136.8, the shortcoming of this technology is little by the resiliently deformable compressed, during for air conduit joint that required regime of elastic deformation is large, air conduit can be caused to leak gas and the malfunctioning generation serious accident of railway vehicle brake.

Summary of the invention

The object of the invention is to provide a kind of seal ring of new structure, effectively can overcome the shortcoming that prior art exists.

The present invention has been achieved in that two schemes, respectively:

First scheme, as shown in Figure 2, it is characterized in that, in the chamber, hole of rubber seal 6, turriform circular section spring 7 is installed, the shape of cross section of rubber seal 6 is as shown in Figure 6, the arc surface adapted with turriform circular section spring 7 is made in chamber, the hole inner top of rubber seal 6 and bottom, chamber, hole inside upper part has air cleft 8, the size relationship of the cross section of rubber seal 6 is width E that lower edge width F equals seal groove on connecting tube, outer rim height P is 1.1 ~ 1.2 times of seal groove depth H on connecting tube, inner edge height S is 1.1 ~ 1.4 times of outer rim height P, lower edge width F is 1.05 ~ 1.4 times of upper limb width G.

Alternative plan, as shown in Figure 7, it is characterized in that, in the chamber, hole that rubber seal 6 ' is interior, turriform flat square section spring 7 ' is installed, the shape of cross section of rubber seal 6 ' is for shown in Figure 11, the plane that flat square section spring 7 ' adapts with turriform is made in chamber, the hole inner top of rubber seal 6 ' and bottom, chamber, hole inside upper part has air cleft 8, the size relationship of the cross section of rubber seal 6 ' is the width E that lower edge width F ' equals seal groove on connecting tube, outer rim height P ' is 1.1 ~ 1.2 times of seal groove depth H on connecting tube, inner edge height S ' is 1.1 ~ 1.4 times of outer rim height P ', lower edge width F ' for upper limb width G ' 1.05 ~ 1.4 times.

Advantage of the present invention and good effect are: 1. adopt turriform spring structure, and structure is simple, and elastic deformation amount is large, are applicable to the large pipeline of required regime of elastic deformation and connect.2. rubber seal inside upper part is shaped with the air cleft of turnover gas, can forever provide stable pre-tightening tension, guarantee the initial tension needed for rubber seal selfsealings. be applied in temperature and pressure when changing for a long time in larger operating mode, this rubber seal fatigue resistance is better than traditional gum seal ring.

accompanying drawing illustrates:

Fig. 1 is ZL201320137136.8 " air conduit connects the seal ring used " accompanying drawing.

Fig. 2 is first aspect of the present invention structure sectional view.

Fig. 3 is the M portion enlarged view in Fig. 2.

Fig. 4 is turriform circular section spring structure schematic diagram.

Fig. 5 is first aspect of the present invention overall schematic.

Fig. 6 is A-A sectional drawing in Fig. 5.

Fig. 7 is second aspect of the present invention structure sectional view.

Fig. 8 is N portion enlarged view in Fig. 7.

Fig. 9 is turriform flat square section spring structure schematic diagram.

Figure 10 is second aspect of the present invention overall schematic.

Figure 11 is B-B sectional drawing in Figure 10.

In figure: 1-first pipeline, 2-second pipeline, 3-connecting bolt, 4-rubber seal, 5-support, 6, 6 '-be respectively first, rubber seal in alternative plan, 7, 7 '-be respectively first, turriform circular section spring in alternative plan and turriform flat square section spring, 8-air cleft, seal groove width on E-connecting tube end face, the seal groove degree of depth on H-connecting tube end face, F, F '-be respectively first, alternative plan rubber seal lower edge width, G, G '-be respectively first, alternative plan rubber seal upper limb width, P, P '-be respectively first, alternative plan rubber seal outer ring height, S, S '-be respectively first, alternative plan rubber seal inner edge height, d1, d2-be respectively turriform circular section spring small end and Outside diameter, d1 ', d2 '-be respectively turriform flat square section spring small end and Outside diameter.

embodiment:

First scheme: as shown in Figure 2,3, outer diameter D=the 68mm of known first and second pipelines, internal diameter d=16mm, second pipeline upper-end surface seal groove cross-sectional width E=6mm, depth H=5mm, then get turriform circular section spring end diameter d1=33.2mm, Outside diameter d2=34mm, rubber seal sectional dimension is lower edge width E=F=6mm, outer rim height P=1.1H=5.5mm, inner edge height S=1.27P=7mm, lower edge width F=1.2G=6mm, wherein upper limb width G=5mm.

Alternative plan: as shown in Figure 7,8, outer diameter D '=the 75mm of known first and second pipelines, internal diameter d '=21.5mm, second pipeline upper-end surface seal groove cross-sectional width E=6mm, depth H=5mm, then get turriform flat square section spring end diameter d1 '=39.2mm, Outside diameter d2 '=40mm, rubber seal sectional dimension is lower edge width E=F '=6mm, outer rim height P '=1.1H=5.5mm, inner edge height S '=1.27P '=7mm, lower edge width F '=1.2G '=6mm, wherein upper limb width G '=5mm.

In practice, effect is good.

Claims

1. a pipeline connects the seal ring used, it is characterized in that, in the chamber, hole of rubber seal (6), turriform circular section spring (7) is installed, the shape of cross section of rubber seal (6) is that the arc surface adapted with turriform circular section spring (7) is made in chamber, the hole inner top of rubber seal (6) and bottom, chamber, hole inside upper part has air cleft (8), the size relationship of the cross section of rubber seal (6) is the width (E) that lower edge width (F) equals seal groove on connecting tube, outer rim height (P) is 1.1 ~ 1.2 times of the seal groove degree of depth (H) on connecting tube, inner edge height (S) is 1.1 ~ 1.4 times of outer rim height (P), lower edge width (F) is 1.05 ~ 1.4 times of upper limb width (G).

2. a pipeline connects the seal ring used, it is characterized in that, in the chamber, hole in rubber seal (6 '), turriform flat square section spring (7 ') is installed, the shape of cross section of rubber seal (6 ') is that the plane that flat square section spring (7 ') adapts with turriform is made in chamber, the hole inner top of rubber seal (6 ') and bottom, chamber, hole inside upper part has air cleft (8), the size relationship of the cross section of rubber seal (6 ') is the width (E) that lower edge width (F ') equals seal groove on connecting tube, outer rim height (P ') is 1.1 ~ 1.2 times of the seal groove degree of depth (H) on connecting tube, inner edge height (S ') is 1.1 ~ 1.4 times of outer rim height (P '), lower edge width (F ') is 1.05 ~ 1.4 times of upper limb width (G ').