CN202065574U - High pressure joint - Google Patents

High pressure joint Download PDF

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Publication number
CN202065574U
CN202065574U CN2011201710103U CN201120171010U CN202065574U CN 202065574 U CN202065574 U CN 202065574U CN 2011201710103 U CN2011201710103 U CN 2011201710103U CN 201120171010 U CN201120171010 U CN 201120171010U CN 202065574 U CN202065574 U CN 202065574U
Authority
CN
China
Prior art keywords
oilhole
high pressure
pressure joint
screw rod
side
Prior art date
Application number
CN2011201710103U
Other languages
Chinese (zh)
Inventor
焦黎伟
Original Assignee
郑州人造金刚石及制品工程技术研究中心有限公司
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 郑州人造金刚石及制品工程技术研究中心有限公司 filed Critical 郑州人造金刚石及制品工程技术研究中心有限公司
Priority to CN2011201710103U priority Critical patent/CN202065574U/en
Application granted granted Critical
Publication of CN202065574U publication Critical patent/CN202065574U/en

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Abstract

The utility model discloses a high pressure joint, which comprises a screw rod with a conical head and a nut. The center of the screw rod is provided with oil holes, the diameter of the oil hole on the conical head side is larger than that on the other side of the screw rod, and steps are formed between the two sections of the oil holes. The oil hole on the conical head side is provided with a valve core and a plug with a through hole from inside out, the valve core and the plug are connected through a spring, and the valve core is in sealed match with the oil hole on the other side of the screw rod. Parts including the valve core, the spring and the like are arranged in the oil hole of the high pressure joint, thereby enabling the high pressure joint to have a one-way valve function and being simple in structure, convenient to use and low in cost.

Description

A kind of high pressure joint

Technical field

The utility model relates to a kind of high pressure joint.

Background technique

High pressure joint has obtained using widely in hydraulic system, main effect is to connect oil pipe and valve member, its structure is the screw rod that an end has the conical surface, be provided with a through hole in the middle of the screw rod, nut sleeve is on screw rod, the screw rod conical surface is used for sealing, the screw rod intermediate throughholes is used for passing through of fluid, nut is used to connect the valve member of other oil pipes, this structure high pressure joint mainly is to play other oil pipes and the valve member effect of connecting, require fluid unidirectionally to pass through in the system that has, this high pressure joint this moment can't be used, and use one-way valve to replace and then can improve cost of production.

The model utility content

The purpose of this utility model provides a kind of high pressure joint that has non-return valve function.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of high pressure joint comprises the screw rod and the nut that have conehead, and the screw rod center is provided with oilhole, and the oilhole diameter of conehead side forms step greater than opposite side oilhole diameter between two sections oilholes; Be provided with the plug of spool and band through hole in the oilhole of conehead side from inside to outside, spool is connected by spring with plug, and spool and opposite side oilhole are sealed and matched.

Described spool is a steel ball, and steel ball size is less than the oilhole diameter of conehead side and greater than opposite side oilhole diameter.

Described plug and oilhole are by being threaded.

In the utility model, parts such as spool and spring are set in oilhole, make high pressure joint have non-return valve function, simple in structure, easy to use, cost is low.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

As shown in Figure 1, a kind of high pressure joint comprises the screw rod 7 and the nut 6 that have conehead, and screw rod 7 centers are provided with oilhole, and oilhole 5 diameters of conehead side form step greater than opposite side oilhole 1 diameter between two sections oilholes; Be provided with the plug 4 of steel ball 2 and band through hole in the oilhole 5 of conehead side from inside to outside, steel ball 2 is connected by spring 3 with plug 4, and steel ball 2 is sealed and matched with opposite side oilhole 1.Steel ball 2 diameters are less than the diameter of the oilhole 5 of conehead side and greater than the diameter of opposite side oilhole 1.The oilhole 5 of described plug 4 and conehead side is by being threaded.

Working principle of the present utility model is: fluid enters from oilhole 1, pushes steel ball 2 under the effect of pressure open, and fluid flows out from the oilhole 5 of conehead side, and can not reflux, and plays the effect of one-way valve.

Claims (3)

1. high pressure joint comprises the screw rod and the nut that have conehead, and the screw rod center is provided with oilhole, it is characterized in that, the oilhole diameter of conehead side forms step greater than opposite side oilhole diameter between two sections oilholes; Be provided with the plug of spool and band through hole in the oilhole of conehead side from inside to outside, spool is connected by spring with plug, and spool and opposite side oilhole are sealed and matched.
2. high pressure joint as claimed in claim 1 is characterized in that, described spool is a steel ball, and steel ball size is less than the oilhole diameter of conehead side and greater than opposite side oilhole diameter.
3. high pressure joint as claimed in claim 1 or 2 is characterized in that, described plug and oilhole are by being threaded.
CN2011201710103U 2011-05-26 2011-05-26 High pressure joint CN202065574U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201710103U CN202065574U (en) 2011-05-26 2011-05-26 High pressure joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201710103U CN202065574U (en) 2011-05-26 2011-05-26 High pressure joint

Publications (1)

Publication Number Publication Date
CN202065574U true CN202065574U (en) 2011-12-07

Family

ID=45059436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201710103U CN202065574U (en) 2011-05-26 2011-05-26 High pressure joint

Country Status (1)

Country Link
CN (1) CN202065574U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104390090A (en) * 2014-09-04 2015-03-04 郑忠文 Plugging device of water supply pipeline
CN104514941A (en) * 2014-11-26 2015-04-15 中国北方发动机研究所(天津) High-pressure pipeline sealing device
CN104772739A (en) * 2015-03-27 2015-07-15 鹤山联塑实业发展有限公司 Preparation device of steel-plastic composite pipe provided with stainless steel bushing
CN105065713A (en) * 2015-08-11 2015-11-18 华南理工大学 Intake valve with pressure regulating function
CN106764377A (en) * 2017-03-13 2017-05-31 成都中车电机有限公司 A kind of unidirectional grease automatic releasing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104390090A (en) * 2014-09-04 2015-03-04 郑忠文 Plugging device of water supply pipeline
CN104514941A (en) * 2014-11-26 2015-04-15 中国北方发动机研究所(天津) High-pressure pipeline sealing device
CN104772739A (en) * 2015-03-27 2015-07-15 鹤山联塑实业发展有限公司 Preparation device of steel-plastic composite pipe provided with stainless steel bushing
CN105065713A (en) * 2015-08-11 2015-11-18 华南理工大学 Intake valve with pressure regulating function
CN106764377A (en) * 2017-03-13 2017-05-31 成都中车电机有限公司 A kind of unidirectional grease automatic releasing device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111207

Termination date: 20160526