CN203115338U - Compression type single ferrule fitting - Google Patents

Compression type single ferrule fitting Download PDF

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Publication number
CN203115338U
CN203115338U CN 201320127142 CN201320127142U CN203115338U CN 203115338 U CN203115338 U CN 203115338U CN 201320127142 CN201320127142 CN 201320127142 CN 201320127142 U CN201320127142 U CN 201320127142U CN 203115338 U CN203115338 U CN 203115338U
Authority
CN
China
Prior art keywords
cutting ferrule
hand
nut
joint
compression type
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 201320127142
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Chinese (zh)
Inventor
周开秀
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.)
Fortune Piping Systems (shanghai) Co Ltd
Original Assignee
Fortune Piping Systems (shanghai) 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 Fortune Piping Systems (shanghai) Co Ltd filed Critical Fortune Piping Systems (shanghai) Co Ltd
Priority to CN 201320127142 priority Critical patent/CN203115338U/en
Application granted granted Critical
Publication of CN203115338U publication Critical patent/CN203115338U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a compression type single ferrule fitting which comprises a cylindrical fitting body. A thread is arranged on the outer lateral side of the right end of the fitting body, and a step hole with a section of horn hole is arranged at the rightmost end of the inner side. A nut is arranged on the thread at the right end of the cylindrical fitting body, and a clamping sleeve is arranged between the nut and the cylindrical fitting body. The right end of the clamping sleeve is provided in a conical shape, wherein the left side of the left end of the clamping sleeve has a small diameter, a blade of the left side is downward, and the right end of the clamping sleeve is cylindrical. When the compression type ferrule fitting is used, the nut and the clamping sleeve are sequentially sleeved at one end of a pipe to be connected, then the pipe is inserted into the bottom of a step hole of the cylindrical fitting body, the nut is rotated onto a thread of the cylindrical fitting body and screwed, the clamping sleeve is pushed, so that the outer conical face of the left end of the clamping sleeve forms conical face contact seal, and the blade on the inner side of the left end is embedded into the outer wall of the pipe to form seal. The compression type ferrule fitting is used for connecting a middle-and-small diameter pipeline, does not need welding, weld joint flaw detection and the like, is suitable for flammable and explosive environment, can bearing medium and high pressure, and is convenient to install, free of leakage, resistant to corrosion and good in impact-resistant performance.

Description

Compression type single deck tape-recorder bell and spigot joint
Technical field
The utility model relates to joint, need not to be welded in the compression type single deck tape-recorder bell and spigot joint of pipe connection system when specifically relating to a kind of the assembling.
Background technique
At present, traditional hydraulic system pipeline often adopts the welding pipeline, and jointing adopts Welded fitting or welding type flange.This carries out pipeline construction and causes serious accident through regular meeting under inflammable, explosive environments.In addition, because any welding pipeline can not be accomplished 100% flaw detection, the weld joint is perishable, the weld seam sealing-off, pore etc. is arranged, and therefore is easy to cause the welding pipeline leakage.
Summary of the invention
At above-mentioned situation, the utility model provides a kind of compression type single deck tape-recorder bell and spigot joint, realize being tightly connected of pipeline by cutting ferrule is set in joint inside, cause serious accident thereby solve the welding pipeline under inflammable, explosive environments, weld seam is easy to the problem that causes pipeline to reveal.
To achieve these goals, the technical solution of the utility model is as follows:
Compression type single deck tape-recorder bell and spigot joint, it is characterized in that comprise a cylindric joint body, the external cylindrical surface of the right-hand member of described cylindric joint body is provided with screw thread, the inboard of the right-hand member of described cylindric joint body is a step hole, and the low order end of described step hole is provided with one section bellmouth orifice;
The flanged (FLGD) nut of one right-hand member is set on the screw thread of the right-hand member of described cylindric joint body, is provided with a cutting ferrule between the bellmouth orifice of the inboard of the flange of the right-hand member of described nut and the right-hand member of cylindric joint body;
The left end of described cutting ferrule is that left side footpath is little, big, the downward awl tubular of cutting edge in footpath, right side, and the right-hand member of described cutting ferrule is cylindric, and the internal diameter of described cutting ferrule right-hand member is not more than the minimum diameter of left end of the awl tubular of cutting ferrule.
Further, the angle α of the axis of described bellmouth orifice and cylindric joint body is 24 °.
Further, the angle of the left side of the external cylindrical surface of described cutting ferrule right-hand member and cutting ferrule left end external diameter line formation is not more than the angle of the awl tubular formation in cutting ferrule left side.
Further, the right side of described cutting ferrule is middle protrusion, the inside conical surface of outer rim; Fit in the left side of described nut right-hand member flange and the right side of cutting ferrule.
The utility model is with nut, cutting ferrule, cylindric joint body is enclosed within pipe one end that will connect successively, make an end of the pipe that will connect insert the bottom of step hole of inboard of the right-hand member of cylindric joint body, again cutting ferrule is pushed the lama hole, nut is screwed on the screw thread of cylindric joint body and tightens, then the cutting ferrule left end is got in the gap of the bellmouth orifice of cylindric joint body and pipe way, make the male cone (strobilus masculinus) of the left end of cutting ferrule form conical surface contact sealing, the cutting edge of cutting ferrule left end embeds the tube outer wall that will connect, outer wall at pipe extrudes a closed annular groove and an annular protrusion, forms sealing; Further tightening nuts makes cutting ferrule middle part projection a little, produces resiliently deformable, elastic stress makes the flange conical surface of cutting ferrule right side and nut produce frictional force, in case nut is loosening, the resiliently deformable part can absorb the vibrations in the hydraulic tubing, in addition, cutting ferrule also hugs steel pipe and forms the sealing of conflicting together.Thereby the utility model is used for medium and small latus rectum pipeline to be connected, and need not welding, seam inspection etc., is applicable to the pipeline construction under inflammable, the explosive environments, and can bears mesohigh, and Maximum operating pressure can reach 400bar; Easy for installation, guarantee easily not have to leak, corrosion-resistant, impact resistance good.
Description of drawings
Structural representation when Fig. 1 just adorns for the utility model compression type single deck tape-recorder bell and spigot joint.
Fig. 2 is the structural representation under the utility model compression type single deck tape-recorder bell and spigot joint working state.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, Fig. 2, compression type single deck tape-recorder bell and spigot joint comprises a cylindric joint body 1, and the external cylindrical surface of the right-hand member of described cylindric joint body 1 is provided with screw thread, the inboard of the right-hand member of described cylindric joint body 1 is a step hole, and the low order end of described step hole is provided with one section bellmouth orifice.
The flanged (FLGD) nut 2 of one right-hand member is set on the screw thread of the right-hand member of described cylindric joint body 1, is provided with a cutting ferrule 3 between the bellmouth orifice of the inboard of the right-hand member of the flange of the right-hand member of described nut 2 and cylindric joint body 1.
The left end of described cutting ferrule 3 is that left side footpath is little, big, the downward awl tubular of cutting edge in footpath, right side, and the right-hand member of described cutting ferrule 3 is cylindric, and the internal diameter of described cutting ferrule 3 right-hand members is not more than the minimum diameter of left end of the awl tubular of cutting ferrule.
Wherein, the angle α of the axis of described bellmouth orifice and cylindric joint body is preferably 24 °.The angle that the left side of the external cylindrical surface of described cutting ferrule 3 right-hand members and cutting ferrule 3 left end external diameter lines form is not more than the angle of the awl tubular formation in cutting ferrule 3 left sides.In addition, the right side of described cutting ferrule 3 is middle protrusion, the inside conical surface of outer rim; Fit in the left side of described nut 2 right-hand member flanges and the right side of cutting ferrule 3.
The utility model is at first sawed the seamless steel pipe 4 of appropriate length down in use, removes the burr of steel pipe port, makes steel pipe end face and steel pipe axis normal, and angle tolerance is not more than 0.5 degree.Press Fig. 1, shown in Figure 2 then, notice that nut 2 and the direction of cutting ferrule 3 are enclosed within nut 2 and cutting ferrule 3 on the seamless steel pipe 4, screw thread and cutting ferrule 3 at preassembled cylindric joint body 1 right-hand member are coated lubricant oil, the end of seamless steel pipe is inserted the step hole bottom of inboard of the right-hand member of cylindric joint body 1, screw nut 2 with spanner, after cutting ferrule 3 blocks seamless steel pipe 4, reaches pressure spot, again nut 2 is tightened 1/2 circle.
When cutting ferrule 3 and nut 2 be enclosed within insert cylindric joint body 1 on the seamless steel pipe 4 after, when screwing nut 2, cutting ferrule 3 right-hand members are tightened under the roof pressure nut 2, cutting ferrule 3 left ends are got in the gap of 4 in cylindric joint body 1 right-hand member bellmouth orifice and seamless steel pipe, make cutting ferrule 3 left end outer side surfaces and the applying of the cylindric joint body 1 right-hand member bellmouth orifice conical surface form the conical surface and contact sealing, the inner cutter hole of cutting ferrule 3 embeds outer wall of steel pipe, outer wall at steel pipe extrudes a closed annular groove and an annular protrusion, forms effectively sealing.
Further tightening nuts 2, make cutting ferrule 3 middle parts projection a little, produce resiliently deformable, elastic stress makes the flange left end conical surface of cutting ferrule 3 right sides and nut 2 produce frictional force, in case nut 2 is loosening, the resiliently deformable part can absorb the vibrations in the hydraulic tubing, and in addition, the cutting ferrule right end portion also hugs steel pipe and forms the sealing of conflicting together.
The utility model is applicable to that medium and small latus rectum pipeline connects, and need not welding, need not seam inspection etc., is applicable to the pipeline construction under inflammable, the explosive environments, and can bears mesohigh, and Maximum operating pressure can reach 400bar, and is easy for installation.
The pipe connection system that the utility model provides not only guarantee not have leaks easily, and corrosion-resistant, impact resistance good.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and the specification is principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in the claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.

Claims (4)

1. compression type single deck tape-recorder bell and spigot joint, it is characterized in that comprise a cylindric joint body, the external cylindrical surface of the right-hand member of described cylindric joint body is provided with screw thread, the inboard of the right-hand member of described cylindric joint body is a step hole, and the low order end of described step hole is provided with one section bellmouth orifice;
The flanged (FLGD) nut of one right-hand member is set on the screw thread of the right-hand member of described cylindric joint body, is provided with a cutting ferrule between the bellmouth orifice of the inboard of the flange of the right-hand member of described nut and the right-hand member of cylindric joint body;
The left end of described cutting ferrule is that left side footpath is little, big, the downward awl tubular of cutting edge in footpath, right side, and the right-hand member of described cutting ferrule is cylindric, and the internal diameter of described cutting ferrule right-hand member is not more than the minimum diameter of left end of the awl tubular of cutting ferrule.
2. compression type single deck tape-recorder bell and spigot joint according to claim 1 is characterized in that, the angle α of the axis of described bellmouth orifice and cylindric joint body is 24 °.
3. compression type single deck tape-recorder bell and spigot joint according to claim 1 is characterized in that, the angle that the left side of the external cylindrical surface of described cutting ferrule right-hand member and cutting ferrule left end external diameter line form is not more than the angle of the awl tubular formation in cutting ferrule left side.
4. compression type single deck tape-recorder bell and spigot joint according to claim 1 is characterized in that, the right side of described cutting ferrule is middle protrusion, the inside conical surface of outer rim; Fit in the left side of described nut right-hand member flange and the right side of cutting ferrule.
CN 201320127142 2013-03-19 2013-03-19 Compression type single ferrule fitting Expired - Fee Related CN203115338U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320127142 CN203115338U (en) 2013-03-19 2013-03-19 Compression type single ferrule fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320127142 CN203115338U (en) 2013-03-19 2013-03-19 Compression type single ferrule fitting

Publications (1)

Publication Number Publication Date
CN203115338U true CN203115338U (en) 2013-08-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320127142 Expired - Fee Related CN203115338U (en) 2013-03-19 2013-03-19 Compression type single ferrule fitting

Country Status (1)

Country Link
CN (1) CN203115338U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351643A (en) * 2015-12-08 2016-02-24 四川海搏液压机械有限公司 Multi-level seal hydraulic pipe ferrule
CN105443890A (en) * 2014-06-11 2016-03-30 陈瑜珍 Ferrule-type compression joint and annular ferrule thereof
CN109282093A (en) * 2018-08-17 2019-01-29 弗通流体科技(上海)有限公司 Squash type pipe connection system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105443890A (en) * 2014-06-11 2016-03-30 陈瑜珍 Ferrule-type compression joint and annular ferrule thereof
CN105443890B (en) * 2014-06-11 2017-11-28 陈瑜珍 Ferrule-type compression joint and its ring-shaped clamping sleeve
CN105351643A (en) * 2015-12-08 2016-02-24 四川海搏液压机械有限公司 Multi-level seal hydraulic pipe ferrule
CN109282093A (en) * 2018-08-17 2019-01-29 弗通流体科技(上海)有限公司 Squash type pipe connection system

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

Granted publication date: 20130807

Termination date: 20180319

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