CN203549201U - Hydraulic system pipe joint - Google Patents

Hydraulic system pipe joint Download PDF

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Publication number
CN203549201U
CN203549201U CN201320654065.9U CN201320654065U CN203549201U CN 203549201 U CN203549201 U CN 203549201U CN 201320654065 U CN201320654065 U CN 201320654065U CN 203549201 U CN203549201 U CN 203549201U
Authority
CN
China
Prior art keywords
joint core
joint
connection pipe
sleeve
hydraulic system
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
CN201320654065.9U
Other languages
Chinese (zh)
Inventor
田海涛
肖鹏涛
林春喜
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.)
LUOHE BONWELL RUBBER Co Ltd
Original Assignee
LUOHE BONWELL RUBBER 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 LUOHE BONWELL RUBBER Co Ltd filed Critical LUOHE BONWELL RUBBER Co Ltd
Priority to CN201320654065.9U priority Critical patent/CN203549201U/en
Application granted granted Critical
Publication of CN203549201U publication Critical patent/CN203549201U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a hydraulic system pipe joint, wherein the outer diameter of the middle of a joint core is larger than that of a joint core tail part; the middle of the joint core is directly tightly connected with a steel wire reinforcing layer of a connection pipe; the joint core tail part is directly tightly connected with an inner rubber layer of the connection pipe, due to the structure, the sealing effect of a connection pipe assembly is good, the phenomenon that the connection pipe is separated from the joint core caused by the reasons that the inner rubber layer is aged and the like is effectively reduced and the service life of the connection pipe assembly is prolonged.

Description

A kind of hydraulic coupler
Technical field
The utility model relates to a kind of pipe joint, is specifically related to a kind of hydraulic coupler.
Background technique
At present, in construction machinery hydraulic system pipeline, hydraulic coupler is critical elements wherein, and pipe joint couples together oil pump, connecting tube and other elements, connecting tube is comprised of inner glue layer, steel wire reinforcement layer and outer glue-line, and construction machinery hydraulic system is normally worked.The pipe joint of current use is comprised of nut 1, joint core 2 and sleeve 3, and joint core 2 outsides and sleeve 3 inner sides are provided with annular projection.In use as shown in Figure 1, joint core 2 inserts connecting tube 4 inside, and sleeve 3 is enclosed within connecting tube 4 outsides, by special-purpose crimping equipment, sleeve 3 is shunk, and realizes connecting tube 4 pressed joint cores 2.But under present case, due to high temperature and lasting pulsating pressure effect, the inner glue layer of connecting tube 4 is easily aging, and joint pull-off often occurs, and affects the normal operation of engineering machinery.
Summary of the invention
The utility model provides a kind of hydraulic coupler, can effectively reduce the generation connecting tube that causes because of reasons such as connecting tube inner glue layer are aging from the phenomenon of joint core pull-off, thereby extends the working life of whole connecting pipe component.
Hydraulic coupler described in the utility model, by nut 1, joint core 2 and sleeve 3, formed, joint core 2 outsides and sleeve 3 inner sides are provided with annular projection, and described joint core 2 is divided into joint core head, joint core middle part and joint core afterbody, and joint core middle part external diameter is greater than joint core afterbody external diameter.
Hydraulic coupler described in the utility model has significantly reduced the phenomenon of connecting tube from the pull-off of joint core.
Accompanying drawing explanation
Fig. 1 is prior art tube joint assembly figure
Fig. 2 is the utility model tube joint assembly figure.
Embodiment
Hydraulic coupler described in the utility model, as shown in Figure 2, by nut 1, joint core 2 and sleeve 3, formed, joint core 2 outsides and sleeve 3 inner sides are provided with annular projection, described joint core 2 is divided into joint core head, joint core middle part and joint core afterbody, and joint core middle part external diameter is greater than joint core afterbody external diameter.
The utility model in actual applications, first divests the inner glue layer of connecting tube 4, and steel wire reinforcement layer inside is spilt, divesting length is joint core middle part length, then sleeve 3 is enclosed within on connecting tube, then joint core 2 inserts connecting tubes 4, finally with crimping equipment by sleeve 3 fastenings.Joint core middle part is directly closely connected with the steel wire reinforcement layer of connecting tube 4 like this, joint core afterbody is directly closely connected with the inner glue layer of connecting tube, this structure not only sealing effect of connecting pipe component is good, and can effectively reduce connecting tube that the reason such as aging because of inner glue layer causes from the phenomenon of joint core pull-off, thereby extended the working life of connecting pipe component.

Claims (1)

1. a hydraulic coupler, is comprised of nut (1), joint core (2) and sleeve (3), and joint core (2) outside and sleeve (3) inner side are provided with annular projection, and joint core (2) is divided into joint core head, joint core middle part and joint core afterbody; It is characterized in that described joint core middle part external diameter is greater than described joint core afterbody external diameter.
CN201320654065.9U 2013-10-23 2013-10-23 Hydraulic system pipe joint Expired - Fee Related CN203549201U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320654065.9U CN203549201U (en) 2013-10-23 2013-10-23 Hydraulic system pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320654065.9U CN203549201U (en) 2013-10-23 2013-10-23 Hydraulic system pipe joint

Publications (1)

Publication Number Publication Date
CN203549201U true CN203549201U (en) 2014-04-16

Family

ID=50467317

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320654065.9U Expired - Fee Related CN203549201U (en) 2013-10-23 2013-10-23 Hydraulic system pipe joint

Country Status (1)

Country Link
CN (1) CN203549201U (en)

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Hydraulic system pipe joint

Effective date of registration: 20160805

Granted publication date: 20140416

Pledgee: Bank of China Limited by Share Ltd. Luohe branch

Pledgor: LUOHE BONWELL RUBBER Co.,Ltd.

Registration number: 2016990000681

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20170828

Granted publication date: 20140416

Pledgee: Bank of China Limited by Share Ltd. Luohe branch

Pledgor: LUOHE BONWELL RUBBER Co.,Ltd.

Registration number: 2016990000681

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Hydraulic system pipe joint

Effective date of registration: 20170828

Granted publication date: 20140416

Pledgee: Bank of China Limited by Share Ltd. Luohe branch

Pledgor: LUOHE BONWELL RUBBER Co.,Ltd.

Registration number: 2017990000802

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20180906

Granted publication date: 20140416

Pledgee: Bank of China Limited by Share Ltd. Luohe branch

Pledgor: LUOHE BONWELL RUBBER Co.,Ltd.

Registration number: 2017990000802

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Hydraulic system pipe joint

Effective date of registration: 20180906

Granted publication date: 20140416

Pledgee: Bank of China Limited by Share Ltd. Luohe branch

Pledgor: LUOHE BONWELL RUBBER Co.,Ltd.

Registration number: 2018990000792

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20190814

Granted publication date: 20140416

Pledgee: Bank of China Limited by Share Ltd. Luohe branch

Pledgor: LUOHE BONWELL RUBBER Co.,Ltd.

Registration number: 2018990000792

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Hydraulic system pipe joint

Effective date of registration: 20190815

Granted publication date: 20140416

Pledgee: Bank of China Limited by Share Ltd. Luohe branch

Pledgor: LUOHE BONWELL RUBBER Co.,Ltd.

Registration number: Y2019990000078

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20201019

Granted publication date: 20140416

Pledgee: Bank of China Limited by Share Ltd. Luohe branch

Pledgor: LUOHE BONWELL RUBBER Co.,Ltd.

Registration number: Y2019990000078

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

Granted publication date: 20140416

Termination date: 20211023