CN2620158Y - Connecting structure for plastic pipes - Google Patents

Connecting structure for plastic pipes Download PDF

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Publication number
CN2620158Y
CN2620158Y CN 03230909 CN03230909U CN2620158Y CN 2620158 Y CN2620158 Y CN 2620158Y CN 03230909 CN03230909 CN 03230909 CN 03230909 U CN03230909 U CN 03230909U CN 2620158 Y CN2620158 Y CN 2620158Y
Authority
CN
China
Prior art keywords
plastic tube
collar
adapter
connecting end
plastic
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 03230909
Other languages
Chinese (zh)
Inventor
林岳华
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.)
ZHEJIANG SEJIN WATER INDUSTRY Co Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN 03230909 priority Critical patent/CN2620158Y/en
Application granted granted Critical
Publication of CN2620158Y publication Critical patent/CN2620158Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a connecting structure of the plastic tube, belongs to the machinery technology field, which solves the problem in the existing of the current structure of the plastic tube to be not firmly connected. The connecting structure of the plastic tube includes a plastic tube body and a couple pipe connected with the plastic tube. The connecting end of the plastic tube is covered to the couple pipe. The outer diameter of the couple pipe is slightly larger than the inner diameter of the plastic tube. A block ring is arranged outside the connecting end of the plastic tube and in a cylinder-shaped. The inner diameter of the block ring is slightly larger than the outer diameter of the plastic tube and the block ring is tightly connected with the connecting end of the plastic tube. A slop surface is arranged inside the end of the block ring. A plurality of convex strips are arranged on the couple pipe. The connecting structure of the utility model provides a very firm connection, reducing the cost of the pipe production, also operating fast and conveniently, and has high practical value.

Description

The linkage structure of plastic tube
Technical field
The utility model belongs to field of mechanical technique, particularly a kind of linkage structure of plastic tube.
Background technique
For a long time, in pipelines such as the oil of tap water pipe line or industrial use, gas, custom is used galvanized iron conduit.Because defectives such as galvanized pipe exists the installation and maintenance complexity, easily gets rusty, foulings, existing oneself is eliminated.The substitute is the tubing of various novelty.At present, plastic tube be use wider a kind of.Owing to when plastic tube is connected with pipe joint or valve, can't realize, therefore must adopt some non-threaded modes to finish by the mode that is threaded.
The Placement of existing plastic tube roughly has:
1, directly adopts the glue bonding.This mode only is suitable for being connected between plastic tube and the joint for plastic tube.When the joint that is connected with plastic tube or valve are metals when making, just can't connect.And present employed most valves and most joint are all made with metallic material, and therefore this mode has significant limitation.
2, the mode that adopts nut to compress connects, and promptly at the end of plastic tube socket seal ring and cutting ferrule, compresses cutting ferrule and seal ring by fastening nut, makes plastic tube obtain connecting.Although this mode is feasible, exist connect insecure, when pipe is reversed, occur easily leaking or phenomenon such as come off, therefore be difficult to be used widely.
For this reason, Chinese patent 99239077X provides a kind of " plug-in type aluminium plastic pipe joint ", and it is made up of fittings body and red copper lasso provided thereon, and fittings body is provided with rib.During use, the plastic-aluminum pipe is inserted between lasso and the fittings body, with pliers that the lasso pincers are tight, the plastic-aluminum pipe is locked on fittings body firmly.This mode is simple in structure feasible, and only deficiency is that the joint is loosening easily.This mainly is because it is to utilize the red copper lasso to clamp the method for plastic-aluminum pipe, and the internal diameter of lasso is not bigger when connecting, and lasso is shunk.Like this, lasso just might restore and become flexible, the soundness that influence connects.
Summary of the invention
The objective of the invention is at the problems referred to above, a kind of linkage structure of structure improved plastic tube be provided, make it have simple in structure, be connected firmly, characteristics such as easy to operate.
For achieving the above object, the utility model can adopt following technical proposal to realize: the linkage structure of this plastic tube comprises a plastic tube and the adapter that is connected with plastic tube, the connecting end of plastic tube is socketed in the adapter, the external diameter of taking over is slightly larger than the internal diameter of plastic tube, there is a collar in the outside of plastic tube connecting end, collar is cylindrical, and its internal diameter is slightly larger than the external diameter of plastic tube, and collar is that drive fit is connected with the connecting end of plastic tube.
The utility model is the plastic behavior that makes full use of the plastic tube material, realize plastic tube and take between be connected.Particularly,, adopt mode such as machine tool that the end of plastic tube is opened slightly, the end of plastic tube could be socketed in the adapter at first because the external diameter of taking over is slightly larger than the internal diameter of plastic tube; On plastic tube, put collar then, and shift to the connecting end of plastic tube.Because the internal diameter of collar just is slightly larger than the external diameter of plastic tube,, can be stopped when collar during to the plastic tube connecting end.At last, adopt some machine tool compress collar, utilize the plasticity of plastic tube, the collar drive fit is placed on the connecting end of plastic tube.Plastic tube firmly has been connected with adapter.In this structure, adapter can be played a supporting role.
Preferably an inclined-plane is set in the inboard, end of above-mentioned collar.Utilize this inclined-plane, make progressively banding plastic tube of collar, to make things convenient for practical operation.
Usually, on taking over, be provided with some raised lines,, prevent that plastic tube breaks away from adapter in order to increase frictional force.
In the linkage structure of above-mentioned plastic tube, on true epipodium pipe joint of described adapter or the valve with the attachment portion of plastic tube.Obviously, the linkage structure of this plastic tube can be used for being connected of plastic tube and various metal joints or metal valve.
Compared with prior art, advantage of the present utility model is:
1, owing to adopting this structure that plastic tube is not all changed with the internal diameter and the outside dimension that are connected the front and back collar of adapter, but rely on self plasticity of plastic tube material, the plastic tube end is deformed realize the drive fit of plastic tube and adapter, so its connection is very firm.
2, in this linkage structure, except plastic tube and adapter place, collar of an external application so structure is very simple, and has reduced the cost of pipeline.
3, when connecting, utilize the progressively mode of banding of collar, its tightening force size can be controlled, and is difficult for causing plastic tube or takes over damage or fracture phenomena; Simultaneously, operate quick and conveniently, have higher utility.
Description of drawings
Fig. 1 is the sectional view of the linkage structure of the plastic tube that provides of the utility model.
Fig. 2 is the structural representation of linkage structure before connection of the plastic tube that provides of the utility model.
Among the figure, 1, take over; 11, raised line; 2, collar; 21, inclined-plane; 3, plastic tube.
Embodiment
As shown in Figure 1, the linkage structure of the plastic tube that provides of the utility model comprises and takes over 1 and collar 2.Adapter 1 can be the adapter on the pipe joint, also can be an adapter on the valve.That is to say that this linkage structure both can be used for also can be applicable on the valve on the pipe joint.
Generally speaking, the external diameter of adapter 1 is slightly larger than the internal diameter of the plastic tube 3 that will connect.Therefore, when connecting, the connecting end of plastic tube 3 is opened, it is socketed on take on 1.
As shown in Figure 2, the internal diameter of collar 2 is the external diameters that are slightly larger than plastic tube 3.But when plastic tube 3 connecting ends were socketed in the adapter 1, the external diameter of its end just had been larger than the internal diameter of collar 2.
In the present embodiment, collar 2 and adapter 1 all adopt metallic material to make.After plastic tube 3 ends are socketed on adapter 1, just can use machine tool compress collar 2, collar 2 is moved to the connecting end of plastic tube 3.In this process, collar 2 can not deform.But, the end of plastic tube 3 is deformed by compress collar 2.Like this, collar 2 with regard to banding plastic tube 3, plastic tube 3 firmly is connected with adapter 1.
In fact, behind collar 2 complete banding plastic tubes 3,, plastic tube 3 is separated with adapter 1, unless part is wherein destroyed because connection is very firm.
The inboard inclined-plane 21 that is provided with, collar 2 ends helps the extruding of collar 2.In the present embodiment, all there is inclined-plane 21 inboard, two ends of collar 2, no matter collar 2 from which direction is socketed on the plastic tube 3 all can.
As shown in Figure 1, be provided with some raised lines 11 on the surface of taking over 1.When plastic tube 3 fully with after adapter 1 is connected, the inboard of plastic tube 3 connecting ends also can embed in the gap between the raised line 11 slightly.Obviously, can prevent effectively that like this plastic tube 3 breaks away from adapter 1.

Claims (4)

1, a kind of linkage structure of plastic tube, comprise a plastic tube (3) and the adapter (1) that is connected with plastic tube (3), the connecting end of plastic tube (3) is socketed in the adapter (1), it is characterized in that the external diameter of described adapter (1) is slightly larger than the internal diameter of plastic tube (3), there is a collar (2) in the outside of plastic tube (3) connecting end, collar (2) is cylindrical, and its internal diameter is slightly larger than the external diameter of plastic tube (3), and collar (2) is that drive fit is connected with the connecting end of plastic tube (3).
2, the linkage structure of plastic tube according to claim 1 is characterized in that the inboard, end of described collar (2) is provided with an inclined-plane (21).
3, the linkage structure of plastic tube according to claim 1 and 2 is characterized in that being provided with some raised lines (11) in adapter (1).
4, the linkage structure of plastic tube according to claim 2 is characterized in that all there is inclined-plane (21) inboard, two ends of described collar (2).
CN 03230909 2003-04-28 2003-04-28 Connecting structure for plastic pipes Expired - Fee Related CN2620158Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03230909 CN2620158Y (en) 2003-04-28 2003-04-28 Connecting structure for plastic pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03230909 CN2620158Y (en) 2003-04-28 2003-04-28 Connecting structure for plastic pipes

Publications (1)

Publication Number Publication Date
CN2620158Y true CN2620158Y (en) 2004-06-09

Family

ID=34247857

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03230909 Expired - Fee Related CN2620158Y (en) 2003-04-28 2003-04-28 Connecting structure for plastic pipes

Country Status (1)

Country Link
CN (1) CN2620158Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101430035B (en) * 2008-12-02 2010-10-06 浙江世进水控股份有限公司 Sliding type aluminium plastic composite pipe fittings
CN102434748A (en) * 2011-11-25 2012-05-02 长春高祥特种管道有限公司 Electric smelting type bellows connector and method for connecting gas metal pipe and polyethylene pipe
CN103292106A (en) * 2013-01-31 2013-09-11 李忠诚 PE pipeline cold connecting sleeve barrel
CN106738829A (en) * 2016-12-21 2017-05-31 重庆永高塑业发展有限公司 Plastics mouth of pipe spline processing technology
CN109592290A (en) * 2018-12-25 2019-04-09 江苏永钢集团有限公司 A kind of tubular band fracture joint connection for long range pipe conveyer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101430035B (en) * 2008-12-02 2010-10-06 浙江世进水控股份有限公司 Sliding type aluminium plastic composite pipe fittings
CN102434748A (en) * 2011-11-25 2012-05-02 长春高祥特种管道有限公司 Electric smelting type bellows connector and method for connecting gas metal pipe and polyethylene pipe
CN103292106A (en) * 2013-01-31 2013-09-11 李忠诚 PE pipeline cold connecting sleeve barrel
CN103292106B (en) * 2013-01-31 2015-10-21 李忠诚 The cold coupling sleeve of PE pipeline
CN106738829A (en) * 2016-12-21 2017-05-31 重庆永高塑业发展有限公司 Plastics mouth of pipe spline processing technology
CN109592290A (en) * 2018-12-25 2019-04-09 江苏永钢集团有限公司 A kind of tubular band fracture joint connection for long range pipe conveyer

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: ZHEJIANG SHIJIN VALVE MANUFACTURING CO., LTD.

Free format text: FORMER OWNER: LIN YUEHUA

Effective date: 20070831

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20070831

Address after: 317600 Yuhuan County mechanical and Electrical Industrial Park, Zhejiang (No. 508, No., Chengguan Town, Zhujiang Town, Zhejiang Province)

Patentee after: Zhejiang Shijin Valve Manufacturing Co.,Ltd.

Address before: 317600 Zhejiang province Yuhuan County Zhugang Chengguan Kang Yuk Road No. 66

Patentee before: Lin Yuehua

C56 Change in the name or address of the patentee

Owner name: ZHEJIANG SHIJIN WATER CONTROL CO., LTD.

Free format text: FORMER NAME OR ADDRESS: ZHEJIANG SHIJIN VALVE MANUFACTURING CO., LTD.

CP03 Change of name, title or address

Address after: Yuhuan County Zhejiang Electromechanical industry zone, postcode: 317600

Patentee after: Zhejiang Sejin Water Industry Co., Ltd.

Address before: Yuhuan County electromechanical Industrial Zone (No. 508, Chengguan Road, Zhujiang Town, Zhejiang), Yuhuan County 317600, China

Patentee before: Zhejiang Shijin Valve Manufacturing Co.,Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040609

Termination date: 20120428