CN203309387U

CN203309387U - Corrugated pipe

Info

Publication number: CN203309387U
Application number: CN201320342570XU
Authority: CN
Inventors: 马庆虎
Original assignee: TIANJIN BINHAI YILI BUILDING MATERIAL Co Ltd
Current assignee: TIANJIN BINHAI YILI BUILDING MATERIAL Co Ltd
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2013-11-27
Anticipated expiration: 2023-06-14

Abstract

The utility model provides a corrugated pipe which comprises a corrugated pipe main body and a joint, wherein the corrugated pipe main body comprises an outer wall of the corrugated pipe, a reinforced layer and an inner wall of the corrugated pipe. The reinforced layer is located between the outer wall of the corrugated pipe and the inner wall of the corrugated pipe. Threaded pipes are arranged at two ports of the corrugated pipe main body. One ends of the threaded pipes are fixedly welded with the ports of the corrugated pipe main body. A circular groove vertical to the axis of the joint is arranged in the middle of the joint. The circular groove is internally provided with a seal ring for fixing the corrugated pipe. Inner threads matched with the threaded pipes are arranged in the two ports of the joint. The corrugated pipe provided by the utility model has the beneficial effects that the threaded pipes are arranged at both ends of the corrugated pipe main body to be matched with the threads in the port at one end of the joint, so that the corrugated pipe is simple, convenient and labor-saving in the installation process, and meanwhile, the seal ring contacted with the corrugated pipe main body ensures good leakproofness; and the reinforced layer is arranged between the outer wall and the inner wall of the corrugated pipe main body, so that the corrugated pipe in the long-term using process is not easy to deform.

Description

A kind of bellows

Technical field

The utility model belongs to the pipe technology field, especially relates to a kind of bellows.

Background technique

Bellows refers to the tubulose elastic sensing element connected into along the folding retractable direction with collapsible wrinkle sheet, it is the housing with cylinder-shaped thin wall wrinkle of a plurality of transverse waves, bellows can be used as the seal isolation element, two media is separated or prevented the measure portion of harmful fluids access arrangement.It can also be used as compensating element, utilizes the temperature error of the variability compensation apparatus of its volume.Sometimes also be used as the resilient connection joint of two parts etc.Bellows can be divided into two kinds of metal bellows, nonmetal bellowss by constituent material; By structure, can be divided into individual layer and multilayer.

Metal bellows is mainly used in the effects such as compensation pipes thermal distortion, damping, absorption pipeline sedimentation and deformation, is widely used in the industries such as mechanical.Other material bellowss such as plastics have irreplaceable effect in fields such as medium transport, electric power threading, lathe, household electrical appliances.But, distortion when at present bellows is subject to excessive pressure, easily occurs, and bellows is in connection procedure, due to the most more complicated of joint structure, high cost, be unfavorable for installing, and the process of installing simultaneously also relatively wastes time and energy.

The model utility content

The purpose of this utility model is to provide that a kind of linkage structure is simple, installation process simply and is for a long time used on-deformable bellows.

The technical solution of the utility model is: a kind of bellows, comprise bellows main body and joint, and described bellows main body comprises bellows outer wall, reinforced layer and bellows inwall, described reinforced layer is between bellows outer wall and bellows inwall; Two ports of described bellows main body are provided with threaded pipe; One end of described threaded pipe and the port of bellows main body are welded and fixed; The intermediate portion of described joint is provided with the circular groove of vertical its axis; In described circular groove, be provided with for the fixing seal ring of bellows; In the two-port of described joint, be provided with the internal thread be complementary with threaded pipe.

Further, the thickness of described reinforced layer is 2～5 centimetres.

Further, the aperture of described joint is greater than the aperture of threaded pipe.

Further again, the internal diameter of described joint and the aperture of threaded pipe are complementary.

Further, the both sides of described seal ring are provided with the concave station be complementary with the threaded pipe pipe thickness.

Advantage and the good effect that the utlity model has are: the two ends of the utility model bellows main body are provided with threaded pipe, with the screw thread in an end port of joint, be complementary, installation process is easy to be laborsaving, and the seal ring contacted with the bellows main body has simultaneously guaranteed good sealing; Between the outer wall of bellows main body and inwall, be provided with reinforced layer, make bellows not yielding in long-term using process.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the sectional structure schematic diagram of the utility model joint;

Fig. 3 is the structural representation of the utility model bellows main body.

In figure:

1, bellows main body 2, threaded pipe 3, joint

4, circular groove 5, seal ring 6, bellows outer wall

7, reinforced layer 8, bellows inwall

Embodiment

Below in conjunction with accompanying drawing, the utility model is elaborated.

As shown in Figure 1, Figure 2, Figure 3 shows, a kind of bellows of the utility model, comprise bellows main body 1 and joint 3, described bellows main body 1 comprises bellows outer wall 6, reinforced layer 7 and bellows inwall 8, the thickness of described reinforced layer 7 is 2～5 centimetres, and described reinforced layer 7 is between bellows outer wall 6 and bellows inwall 8; Two ports of described bellows main body 1 are provided with threaded pipe 2; One end of described threaded pipe 2 and the port of bellows main body 1 are welded and fixed; The intermediate portion of described joint 3 is provided with the circular groove 4 of vertical its axis; In described circular groove 4, be provided with for the fixing seal ring 5 of bellows, the both sides of described seal ring 5 are provided with the concave station be complementary with threaded pipe 2 pipe thicknesses; In the two-port of described joint 3, be provided with the internal thread be complementary with threaded pipe 2, the aperture of described joint 3 is greater than the aperture of threaded pipe 2, and the aperture of the internal diameter of described joint 3 and threaded pipe 2 is complementary.

The working procedure of this example: in the course of the work, the bellows rotation that first will be threaded port is inserted into an end of joint 3, until stop inserting while touching the seal ring 5 in circular groove 4, then another bellows is screwed in to the other end of joint 3, owing on seal ring 5, being provided with the concave station suitable with the bellows pipe thickness, thereby make bellows and joint 3 be tightly connected, also guaranteed sealing good between bellows and joint 3.

Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., within all should still belonging to patent covering scope of the present utility model.

Claims

1. bellows, comprise bellows main body (1) and joint (3), it is characterized in that: described bellows main body (1) comprises bellows outer wall (6), reinforced layer (7) and bellows inwall (8), and described reinforced layer (7) is positioned between bellows outer wall (6) and bellows inwall (8); Two ports of described bellows main body (1) are provided with threaded pipe (2); The port of one end of described threaded pipe (2) and bellows main body (1) is welded and fixed; The intermediate portion of described joint (3) is provided with the circular groove (4) of vertical its axis; In described circular groove (4), be provided with for the fixing seal ring of bellows (5); In the two-port of described joint (3), be provided with the internal thread be complementary with threaded pipe (2).

2. a kind of bellows according to claim 1, it is characterized in that: the thickness of described reinforced layer (7) is 2～5 centimetres.

3. a kind of bellows according to claim 1, it is characterized in that: the aperture of described joint (3) is greater than the aperture of threaded pipe (2).

4. a kind of bellows according to claim 3, it is characterized in that: the aperture of the internal diameter of described joint (3) and threaded pipe (2) is complementary.

5. a kind of bellows according to claim 1, it is characterized in that: the both sides of described seal ring (5) are provided with the concave station be complementary with threaded pipe (2) pipe thickness.