EP3342502B1 - Outil de dimensionnement de tuyau rotatif - Google Patents

Outil de dimensionnement de tuyau rotatif Download PDF

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Publication number
EP3342502B1
EP3342502B1 EP16207430.6A EP16207430A EP3342502B1 EP 3342502 B1 EP3342502 B1 EP 3342502B1 EP 16207430 A EP16207430 A EP 16207430A EP 3342502 B1 EP3342502 B1 EP 3342502B1
Authority
EP
European Patent Office
Prior art keywords
clamping device
main member
slot
rotary pipe
sizing tool
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.)
Active
Application number
EP16207430.6A
Other languages
German (de)
English (en)
Other versions
EP3342502A1 (fr
Inventor
Wu-Sheng Huang
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.)
Yung Chi Industry Co Ltd
Original Assignee
Yung Chi Industry 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 Yung Chi Industry Co Ltd filed Critical Yung Chi Industry Co Ltd
Priority to EP16207430.6A priority Critical patent/EP3342502B1/fr
Publication of EP3342502A1 publication Critical patent/EP3342502A1/fr
Application granted granted Critical
Publication of EP3342502B1 publication Critical patent/EP3342502B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/021—Enlarging by means of tube-flaring hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/025—Enlarging by means of impact-type swaging hand tools

Definitions

  • the present invention relates to a rotary pipe sizing tool, according to the preamble of claim 1, which is driven by a power to expand and shrink an end of a pipe.
  • a conventional pipe sizing toll is applied to expand and shrink an end of a pipe, so that the expanded or shrunk pipe could be connected to the other pipe. Because the pipes usually are arranged at the corners of a room, the sizing process has to be performed at a narrow space or a space that is hard to reach.
  • U.S. Patent No. 6,619,099 on which the preamble of claim 1 is based, disclosed a hydraulically powered flaring hand tool, which has a hydraulic pump and a flaring piston arranged in a line. Therefore, the clamping device for holding the pipe is arranged in the same line. As a result, the flaring hand tool has a large length, which is hard to operate it in a narrow space. Besides, this patent did not disclose how the clamping device rotate relative to the hydraulically pump. In spite of that, this patent still has the drawback of large length.
  • U.S. Patent No. 8,671,732 disclosed an oil-pressure swaging tool for rebuilding a connecting pipe, which has an oil-pressure device and an axial member for faring arranged in a line. This patent still has the drawback of large length, which is hard to operate in a narrow space or a space hard to reach.
  • U.S. Patent No. 9162275 disclosed a flaring tool, which has a main member with a manual hydraulic pump and a tank for storing hydraulic liquid.
  • the main member is fixed to the tank with an angle.
  • the flaring tool further includes an expanding device arranged in the main member. Since there is a fixed angle between the main member and the tank, it is not helpful to operate the flaring tool in a narrow space or a space hard to reach.
  • the primary objective of the present invention is to provide a rotary pipe sizing tool, which has a short length and is easy to be operated in a narrow space or a space hard to reach.
  • the present invention proposes a rotary pipe sizing tool for changing a diameter of a pipe comprising a main member having a driving portion, a clamping device provided at an end of the driving portion of the main member, characterized by a rotating mechanism provided between the main member and the clamping device, wherein the clamping device is free to rotate relative to the main member through the rotating mechanism.
  • the rotating mechanism has a neck portion and a slot; the neck portion is provided on the main member, and the slot is provided on the clamping device; the neck portion engages the slot to make the clamping device rotate freely relative to the main member.
  • the rotating mechanism includes a recess on the clamping device and an engaging block on the main member to engage the recess.
  • the clamping device is provided with a bore on a bottom of the recess, and the engaging block engages the recess with a portion passing through the bore to hold the clamping device on the main member.
  • a rotary pipe sizing tool of the preferred embodiment of the present invention includes a main member 10, a clamping device 30, and a rotating mechanism 50.
  • the rotating mechanism 50 is arranged between the main member 10 and the clamping device 30, and connected thereto, which allows the clamping device 30 to be rotated relative to the main member 10.
  • the main member 10 includes an operating portion 12 and a driving portion 14.
  • the operating portion 12 further includes a handle 122 and an operating device 124.
  • An angle is formed between the operating portion 12 and the driving portion 14.
  • An angle between the handle 122 of the operating portion 12 and the driving portion 14 is about 90 degrees.
  • a driving axle 16 is provided in the driving portion 14, and has a engaging slot 18 at an end thereof.
  • a terminal 20 has an engaging section 22 at an end thereof to be engaged with the engaging slot 18 of the driving axle 16.
  • the terminal 20 is an expanding terminal to expand a pipe.
  • the terminal 20 is a shrinking terminal (not shown) to shrink a pipe.
  • a hydraulic pump is provided to drive the driving axle 16 in the driving portion 14 through the operating portion 12, so that the terminal 20 is moved along with the driving axle 16 to expand (or shrink) a pipe.
  • the clamping device 30 includes a clamping set 32 and a base 34.
  • the clamping device 30 is arranged in an axial direction of the driving axle 16 in the driving portion 14.
  • the clamping set 32 are provided in a chamber 36 of the base 34 to clamp a metal round pipe 70.
  • the base 34 is provided with a magnetic device 40 on a bottom of the chamber 36.
  • the clamping set 32 is attracted by the magnetic device 40 to be firmly positioned in the chamber 36. As a result, the clamping set is unable to escape from the chamber 36.
  • the rotating mechanism 50 has a recess and an engaging block 54.
  • the recess 52 is provided on the base 34 of the clamping device 30.
  • the engaging block 54 is arranged in the axial direction of the driving axle 16 of the driving portion 14.
  • the rotating mechanism 50 further has a slot 58 on an end of the base 34 beside the recess 52.
  • the slot 58 has an opening end 582 while at least a connecting portion 59 is provided beside the opening end 582.
  • An elastic positioning set 64 is connected to the connecting portion 59.
  • the elastic positioning set 64 has an end extending out of the connecting portion 59, and associated with the slot 58.
  • a bore 56 is provided on a bottom of the recess 52.
  • the rotating mechanism 50 has a neck potion 62, and the neck 62 and the engaging block 54 are formed on a tube 60.
  • the neck 62 is beside the engaging block 54, and has an outer diameter smaller than that of the engaging block 54.
  • the engaging block 54 could be a round member, or any other suitable appearances.
  • the tube 60 is connected or coupled to an end of the driving portion 14, and the driving axle 16 passes through the tube 60 to engage the terminal 20.
  • the main member 10 and the clamping device 30 are connected together by the engagement of the engaging block 54 and the recess while the engaging block has a portion passing through the bore 56.
  • the neck portion 62 engages the slot 58 to be abutted against the elastic positioning set 64.
  • the engaging block 54 is free to rotate relative to the recess 52, and the neck portion 62 is free to rotate relative to the slot 58.
  • the engaging block 54 has a portion extending out of the bore 56 ( FIG. 6 ) for engagement to prevent the clamping device 30 from escaping along the axial direction of the driving axle 16.
  • the neck portion 62 engages the slot 58, and the elastic positioning set 64 urges the neck portion 62, so that the clamping device 30 is unable to be moved relative to the main member 10 unless a user exerts a force greater than the elastic positioning set 64 to separate the clamping device 30 from the main member 10 via the opening end 582.
  • the arrangement of the elastic positioning set 64 and the neck portion 62 allows the clamping device 30 to rotate freely relative to the main member 10.
  • the rotating mechanism 50 or the arrangement of the rotating mechanism 50 between the clamping device 30 and the main member 10 makes the clamping device 30 rotates freely relative to the main member 10 through the engagement of the neck portion 62 and the slot 58, so that the angle of the clamping device 30 is adjustable.
  • the engaging block 54 has a portion out of the bore 56 could separate the clamping device 30 from the main member 10 along the axial direction of the driving axle 16.
  • the arrangement and relative position of the elastic positioning set 64 and the neck portion 62 allows the clamping device 30 to rotate freely relative to the main member 10. As a result, the clamping device 30 is connected to the main member 10 always no matter the angle of the clamping device 30 is.
  • the pipe sizing toll of the present invention is able to be operated in a narrow space or a space hard to reach.
  • the rotating mechanism 50 of the present preferred embodiment is provided with the engagement of the neck portion 62 and the slot 58 and the engagement of the engaging block 54 and the recess 52. It further includes the slot 58 and the recess 52 provided on the base 34, and the engaging block 54 and the neck portion 62 formed on the tube 60.
  • An alternate design could have the clamping device 30 connected to the driving portion 14, or provides a shaft and a hub to make the clamping device 30 rotate freely relative to the main member 10.
  • Another alternate design is that the clamping device 30 is fitted to the driving axle 16 or the driving 14 for free rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Claims (8)

  1. Outil de dimensionnement de tuyau rotatif pour changer un diamètre d'un tuyau (70), comprenant :
    un élément principal (10) ayant une partie d'entraînement (14) ;
    un dispositif de serrage (30) prévu à une extrémité de la partie d'entraînement (14) de l'élément principal (10) ; caractérisé par
    un mécanisme de rotation (50) prévu entre l'élément principal (10) et le dispositif de serrage (30) ;
    le dispositif de serrage (30) étant libre de tourner par rapport à l'élément principal (10) par l'intermédiaire du mécanisme de rotation (50).
  2. Outil de dimensionnement de tuyau rotatif selon la revendication 1, dans lequel le mécanisme de rotation (50) a une partie col (62) et une fente (58) ; la partie col (62) est prévue sur l'élément principal (10), et la fente (58) est prévue sur le dispositif de serrage (30) ; la partie col (62) s'engage avec la fente (58) pour rendre le dispositif de serrage (30) libre de tourner par rapport à l'élément principal (10).
  3. Outil de dimensionnement de tuyau rotatif selon la revendication 2, comprenant en outre un ensemble de positionnement élastique (64) en plus de la fente (58), la partie col (62) s'engageant avec la fente (58), et l'ensemble de positionnement élastique (64) ayant une extrémité s'étendant hors de la fente (58) pour être mise en butée contre la partie col (62).
  4. Outil de dimensionnement de tuyau rotatif selon la revendication 1, dans lequel le mécanisme de rotation (50) comprend un évidement (52) sur le dispositif de serrage (30) et un bloc d'engagement (54) sur l'élément principal (10) pour s'engager avec l'évidement (52).
  5. Outil de dimensionnement de tuyau rotatif selon la revendication 4, dans lequel le bloc d'engagement (54) est un élément rond.
  6. Outil de dimensionnement de tuyau rotatif selon la revendication 4, dans lequel le dispositif de serrage (30) comporte un alésage (56) sur une partie inférieure de l'évidement (52), et le bloc d'engagement (54) s'engage avec l'évidement (52) avec une partie passant à travers l'alésage (56) pour maintenir le dispositif de serrage (30) sur l'élément principal (10).
  7. Outil de dimensionnement de tuyau rotatif selon la revendication 1, dans lequel l'élément principal (10) comprend une partie d'actionnement (12), laquelle a une poignée (122) et un dispositif d'actionnement (124) ; un angle est formé entre la poignée (122) et la partie d'entraînement (14), et un angle est formé entre le dispositif d'actionnement (124) et la partie d'entraînement (14) .
  8. Outil de dimensionnement de tuyau rotatif selon la revendication 1, dans lequel le dispositif de serrage (30) comprend un ensemble de serrage (32) et au moins un dispositif magnétique (40), tous deux étant prévus sur la base (34), et l'ensemble de serrage (32) est attiré magnétiquement par le dispositif magnétique (40).
EP16207430.6A 2016-12-29 2016-12-29 Outil de dimensionnement de tuyau rotatif Active EP3342502B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16207430.6A EP3342502B1 (fr) 2016-12-29 2016-12-29 Outil de dimensionnement de tuyau rotatif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16207430.6A EP3342502B1 (fr) 2016-12-29 2016-12-29 Outil de dimensionnement de tuyau rotatif

Publications (2)

Publication Number Publication Date
EP3342502A1 EP3342502A1 (fr) 2018-07-04
EP3342502B1 true EP3342502B1 (fr) 2019-05-01

Family

ID=57749769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16207430.6A Active EP3342502B1 (fr) 2016-12-29 2016-12-29 Outil de dimensionnement de tuyau rotatif

Country Status (1)

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EP (1) EP3342502B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813260A (en) * 1987-04-27 1989-03-21 Clevite Industries Inc. Multipurpose tube working tool
JP2834264B2 (ja) * 1990-03-15 1998-12-09 レッキス工業株式会社 電動フレア工具
US6619099B2 (en) 2000-10-16 2003-09-16 Mastercool, Inc. Hydraulically powered flaring hand tool
US8671732B2 (en) 2012-04-03 2014-03-18 Yong-Hua Chen Oil-pressure swaging tool for rebuilding a connecting pipe
TWI433739B (zh) 2013-04-02 2014-04-11 Chieh Yu Cheng 擴管器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3342502A1 (fr) 2018-07-04

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