CN203223698U - Multiple axial expansion joint - Google Patents

Multiple axial expansion joint Download PDF

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Publication number
CN203223698U
CN203223698U CN 201320143386 CN201320143386U CN203223698U CN 203223698 U CN203223698 U CN 203223698U CN 201320143386 CN201320143386 CN 201320143386 CN 201320143386 U CN201320143386 U CN 201320143386U CN 203223698 U CN203223698 U CN 203223698U
Authority
CN
China
Prior art keywords
expansion joint
corrugated pipe
bellows
multiple axial
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320143386
Other languages
Chinese (zh)
Inventor
李文霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU STARLIGHT CORRUGATED PIPE CO Ltd
Original Assignee
JIANGSU STARLIGHT CORRUGATED PIPE CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU STARLIGHT CORRUGATED PIPE CO Ltd filed Critical JIANGSU STARLIGHT CORRUGATED PIPE CO Ltd
Priority to CN 201320143386 priority Critical patent/CN203223698U/en
Application granted granted Critical
Publication of CN203223698U publication Critical patent/CN203223698U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to the technical field of a pipe network expansion joint, in particular to a multiple axial expansion joint. The multiple axial expansion joint comprises a corrugated pipe and connecting pipes which are arranged on two ends of the corrugated pipe, wherein a guide pipe is connected into the corrugated pipe, and the outer layer of the corrugated pipe is provided with an outer jacket. The expansion joint is made of the corrugated pipe, so that the expansion joint not only can be retractable along the axis direction, but also allows little curve; and the guide pipe is connected into the corrugated pipe, and the outer layer of the corrugated pipe is provided with the outer jacket, so that the expansion joint has the characteristics of high temperature resistance, high pressure resistance and corrosion resistance, the unsafe factors such as instability in pressure resistance, easiness in stripping and tearing and explosion in the application process can be avoided, the multiple axial expansion joint can be widely applied to the inlets and outlets of ships, central air conditioning pumps and engines, and the service life of equipment and systems can be efficiently prolonged.

Description

Compound axialmode expansion joint
Technical field
The utility model relates to pipe network expansion joint technical field, is specifically related to compound axialmode expansion joint.
Background technique
Expansion joint is mainly used in compensating the dilatation that pipeline produces because of temperature variation, also is used for pipeline and waits the length compensation that needs because installing to adjust, and mainly is divided into bent-tube boiler expansion joint, bellows expansion joint and sleeve pipe slip joint.Existing bellows expansion joint because of have conserve space, economical with materials is widely used.But because the design of existing bellows expansion joint is reasonable inadequately, have complex structure, withstand voltage low, shortcoming such as inconvenience is installed.
Summary of the invention
The purpose of this utility model provides a kind of compound axialmode expansion joint reasonable in design, simple in structure, high pressure resistant, easy for installation.
In order to solve the existing problem of background technique, the utility model is by the following technical solutions: compound axialmode expansion joint, the connecting tube that comprises bellows and be located at described bellows two ends is connected to honeycomb duct in the described bellows, and the skin of described bellows is provided with oversheath.
Further, described bellows is metal bellows.
Further, the diameter of described connecting tube is less than the diameter of bellows.
Further, described oversheath is the stainless steel oversheath.
The utlity model has following beneficial effect: compound axialmode expansion joint described in the utility model, the connecting tube that comprises bellows and be located at the bellows two ends, the expansion joint that the utility model adopts bellows to make can be flexible along axial direction, also allows a small amount of crooked; And in bellows, be connected to honeycomb duct, the skin of bellows is provided with oversheath, make expansion joint have characteristics such as high temperature resistant, high pressure resistant, anticorrosion, avoid in application process occurring withstand voltage instability, easily delamination tear, unsafe factor such as explosion, the utility model can be widely used in the import and export of boats and ships, central air-conditioner pump and motor etc., effectively prolongs the working life of equipment and system.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
As shown in Figure 1, compound axialmode expansion joint, the connecting tube 2 that comprises bellows 1 and be located at described bellows 1 two ends is connected to honeycomb duct 3 in the described bellows 1, and the skin of described bellows 1 is provided with oversheath 4, and wherein, oversheath is fixed by bolt and bellows; In the present embodiment, the effect of employing bellows is can be flexible along axial direction, also allows a small amount of bending, and the while is conserve space, economical with materials effectively, reduces manufacture cost.
Described bellows 1 is metal bellows, in the present embodiment, adopts the effect of metal bellows to be to have characteristics such as high temperature resistant, high pressure resistant, anticorrosion, thereby can protect equipment, protection environment, the working life of prolongation equipment and system.
The diameter of described connecting tube 2 is less than the diameter of bellows 1, in the present embodiment, adopt this structure be can directly be plugged in the pipeline by the connecting tube at two ends, easy for installation.
Described oversheath 4 is the stainless steel oversheath, and in the present embodiment, the effect of employing stainless steel oversheath is further to improve to increase the service life the anti-corrosive properties of expansion joint.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, other modifications that those of ordinary skills make the technical solution of the utility model or be equal to replacement, only otherwise break away from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of the claim scope of the present utility model.

Claims (4)

1. compound axialmode expansion joint, the connecting tube (2) that comprises bellows (1) and be located at described bellows (1) two ends is characterized in that, is connected to honeycomb duct (3) in the described bellows (1), the skin of described bellows (1) is provided with oversheath (4).
2. compound axialmode expansion joint according to claim 1 is characterized in that, described bellows (1) is metal bellows.
3. compound axialmode expansion joint according to claim 1 is characterized in that, the diameter of described connecting tube (2) is less than the diameter of bellows (1).
4. compound axialmode expansion joint according to claim 1 is characterized in that, described oversheath (4) is the stainless steel oversheath.
CN 201320143386 2013-03-27 2013-03-27 Multiple axial expansion joint Expired - Fee Related CN203223698U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320143386 CN203223698U (en) 2013-03-27 2013-03-27 Multiple axial expansion joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320143386 CN203223698U (en) 2013-03-27 2013-03-27 Multiple axial expansion joint

Publications (1)

Publication Number Publication Date
CN203223698U true CN203223698U (en) 2013-10-02

Family

ID=49250702

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320143386 Expired - Fee Related CN203223698U (en) 2013-03-27 2013-03-27 Multiple axial expansion joint

Country Status (1)

Country Link
CN (1) CN203223698U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103174903A (en) * 2013-03-27 2013-06-26 江苏星光波纹管有限公司 Compound axial-type expansion joint
CN105545441A (en) * 2016-01-27 2016-05-04 徐磊 Exhaust manifold with compensation function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103174903A (en) * 2013-03-27 2013-06-26 江苏星光波纹管有限公司 Compound axial-type expansion joint
CN105545441A (en) * 2016-01-27 2016-05-04 徐磊 Exhaust manifold with compensation function

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Jiangsu Hongbo Machinery Manufactury Co., Ltd.

Assignor: Jiangsu Starlight Corrugated Pipe Co., Ltd.

Contract record no.: 2014320000642

Denomination of utility model: Compound axial-type expansion joint

Granted publication date: 20131002

License type: Exclusive License

Record date: 20140731

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131002

Termination date: 20180327

CF01 Termination of patent right due to non-payment of annual fee