CN110405025A - A kind of inner piece for bend pipe operation - Google Patents
A kind of inner piece for bend pipe operation Download PDFInfo
- Publication number
- CN110405025A CN110405025A CN201910764032.1A CN201910764032A CN110405025A CN 110405025 A CN110405025 A CN 110405025A CN 201910764032 A CN201910764032 A CN 201910764032A CN 110405025 A CN110405025 A CN 110405025A
- Authority
- CN
- China
- Prior art keywords
- inner prop
- piece
- bend pipe
- tooth
- prop
- 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.)
- Pending
Links
- 230000009471 action Effects 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 3
- 210000000515 tooth Anatomy 0.000 description 25
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/15—Bending tubes using mandrels or the like using filling material of indefinite shape, e.g. sand, plastic material
Abstract
This application discloses a kind of inner pieces for bend pipe operation, it include: at least three outer blocks, described each outer piece is fixed together by circlip and forms the hollow structure of an olive-type shape, the section of the hollow structure is the shape for adapting to pipe fitting, the outer block interior tooth of the outer piece of setting, there is an inner prop in the hollow structure, the outer tooth of inner prop setting inner prop, the left inside column of the inner prop point and right inner prop two parts, the left inside column is with right inner prop by including that the attachment device of left and right multi-directional ball and connecting rod is attached, so that pull connecting rod, relatively described outer piece of the inner prop is moved, outer block is to contract under the action of circlip, inner piece is drawn out pipe fitting.The invention has the advantages that structure is simple, when being bonded tighter with pipe fitting, smoothly pulled out after bending, effective guarantee pipe fitting bends the internal diameter in region, not easy damaged pipe fitting inner wall.
Description
Technical field
The present invention relates to a kind of inner pieces for bend pipe operation.
Background technique
Pipe bender is a kind of tool for bending flexible pipe, big although conventional pipe bender ensures the crooked process radius of bend pipe
It is unable to effective guarantee internal diameter, especially thin-wall pipe under angle and is not suitable for bending, such as thin-walled aluminium-plastic pipe；In addition, the prior art
There is spring tube bending device, but when being bonded tighter with pipe fitting, be not easy to pull out after bending, is unable to the interior of effective guarantee pipe fitting bending region
Diameter is easy to damage pipe fitting inner wall.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of inner piece for bend pipe operation, effective guarantees
The internal diameter in pipe fitting bending region.
To achieve the goals above, the technical solution adopted by the present invention are as follows: a kind of inner piece for bend pipe operation, it is special
Sign is, comprising: at least three outer blocks, described each outer piece is fixed together by circlip and forms the hollow knot of an olive-type shape
Structure, the section of the hollow structure are the shape for adapting to pipe fitting, and the outer block interior tooth of the outer piece of setting has in the hollow structure
There is an inner prop, the outer tooth of inner prop, the left inside column of the inner prop point and right inner prop two parts, the left inside column and the right side is arranged in the inner prop
Inner prop is by including that the attachment device of left and right multi-directional ball and connecting rod is attached, so that pull connecting rod, the inner prop is opposite
Described outer piece is moved, and for outer block to contract, inner piece is drawn out pipe fitting under the action of circlip.
The invention has the benefit that
Structure is simple, comprising: at least three outer blocks, described each outer piece is fixed together by circlip and forms an olive-type
The hollow structure of shape, the section of the hollow structure are the shape for adapting to pipe fitting, the outer block interior tooth of the outer piece of setting, in described
There are an inner prop, the outer tooth of inner prop setting inner prop, the left inside column of the inner prop point and right inner prop two parts in hollow structure, it is described
Left inside column is attached with right inner prop by the attachment device including left and right multi-directional ball and connecting rod, so that pull connecting rod, institute
It states relatively described outer piece of inner prop to be moved, for outer block to contract, inner piece is drawn out pipe fitting under the action of circlip.With pipe
It when part fitting is tighter, is smoothly pulled out after bending, effective guarantee pipe fitting bends the internal diameter in region, not easy damaged pipe fitting inner wall.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the inner piece for bend pipe operation of the invention；
Fig. 2 is the outer block structure schematic diagram of inner piece shown in Fig. 1；
Fig. 3 is the inner prop structural schematic diagram of inner piece shown in Fig. 1.
Fig. 4 is the schematic diagram of the section structure along bend pipe axial direction of inner piece shown in Fig. 1；
Fig. 5 is the embodiment schematic diagram of the inner piece for bend pipe operation of the invention.
Appended drawing reference signal
The outer tooth of the outer block interior tooth 13- inner prop 14- inner prop of the outer block 12- of 10- inner piece 11-
15- multi-directional ball 16- connecting rod 17- fixes the convex tooth 20- boss 21- spring of watt 19-
22- circlip 23- flexible jacket 30- pipe fitting
Specific embodiment
As used some vocabulary to censure specific components in the specification and claims.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims are not with name
The difference of title is as the mode for distinguishing component, but with the difference of component functionally as the criterion of differentiation.Such as logical
The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit
In "." substantially " refer within the acceptable error range, those skilled in the art can within a certain error range solve described in
Technical problem basically reaches the technical effect.Specification subsequent descriptions are to implement the better embodiment of the application, so described
Description is being not intended to limit the scope of the present application for the purpose of the rule for illustrating the application.The protection scope of the application
As defined by the appended claims.
Please refer to Fig. 1 to Fig. 4, a kind of inner piece for bend pipe operation of the invention, comprising: at least three outer blocks 11,
Described each outer piece 11 is fixed together by circlip 22 and forms the hollow structure of an olive-type shape, the section of the hollow structure
For the shape for adapting to pipe fitting 30, the outer block interior tooth 12 of outer piece 11 setting, there is an inner prop 13, institute in the hollow structure
It states inner prop 13 and the outer tooth 14 of inner prop is set, the inner prop 13 divides left inside column and right inner prop two parts, and the left inside column and right inner prop are logical
It crosses the attachment device including left and right multi-directional ball 15 and connecting rod 16 to be attached, so that pull connecting rod 16,13 phase of inner prop
Described outer piece 11 is moved, for outer block 11 to contract, inner piece is drawn out pipe fitting 30 under the action of circlip 22.
In one embodiment, described outer piece 11 is four, and each outer block is arranged in quarter turn.
In one embodiment, the inner wall of each outer block is set there are two outer piece of interior tooth 12, the outer piece of interior tooth
Centre has recess portion.
In one embodiment, the outer tooth 14 of the inner prop is set to the position of the outside wall surface corresponding recess of left inside column, described
The shape of the outer tooth 14 of inner prop is adapted with the recess portion.
In one embodiment, convex tooth 19 is arranged in the outside wall surface of the right inner prop.
In one embodiment, the convex tooth 19 with the outer tooth 14 of the inner prop on the same axis.
In one embodiment, the inner prop 13 is additionally provided with a circle boss 20.
In one embodiment, flexible jacket 23 is arranged in outer piece 11 of the surface.Flexible jacket is for protecting pipe fitting
Inner wall is not weighed wounded by outer piece.
In one embodiment, the attachment device further includes for strutting the left and right of left and right multi-directional ball fixed watt 17.
In one embodiment, there is spring 21 between fixed watt of the left and right.
As specific embodiment, referring to figure 5., the present invention is mainly consisted of the following parts: four outer blocks, in one
Column, four outer blocks are fixed together by circlip, two sections of attachment devices being made of multi-directional ball and connecting rod of inner prop, each for connecting
A unit, inner prop point or so two parts, there be outer piece of interior tooth in the inside of block outside, has tooth outside inner prop in inner prop corresponding position.Dotted line
Position indicates the least radius of outer block, is less than the outer tooth height of inner prop, the position for having protected outer block and inner prop is relatively fixed, without revolving
Turn.Multi-directional ball and connecting rod use screwed connection.The effect of convex tooth on the right of inner prop is to ensure inner prop not by the left out of outer piece
It pulls out, plays position-limiting action.In use, by the present invention be inserted into inside pipe fitting, after bending, pull connecting rod, inner prop with
Outer piece of relative motion, the outer tooth of right inner prop are drawn out, and the outer tooth of left inside column falls into the centre of two outer block interior tooths, under the action of circlip
Outer piece, to contract, reduces entire outer diameter, which is smoothly pulled out.The device is reset to the position Fig. 4 by next use
It sets.
The invention has the benefit that
Structure is simple, comprising: at least three outer blocks, described each outer piece is fixed together by circlip and forms an olive-type
The hollow structure of shape, the section of the hollow structure are the shape for adapting to pipe fitting, the outer block interior tooth of the outer piece of setting, in described
There are an inner prop, the outer tooth of inner prop setting inner prop, the left inside column of the inner prop point and right inner prop two parts in hollow structure, it is described
Left inside column is attached with right inner prop by the attachment device including left and right multi-directional ball and connecting rod, so that pull connecting rod, institute
It states relatively described outer piece of inner prop to be moved, for outer block to contract, inner piece is drawn out pipe fitting under the action of circlip.With pipe
It when part fitting is tighter, is smoothly pulled out after bending, effective guarantee pipe fitting bends the internal diameter in region, not easy damaged pipe fitting inner wall.
Above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the application
Be not limited to forms disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations,
Modification and environment, and the above teachings or related fields of technology or knowledge can be passed through in application contemplated scope described herein
It is modified.And changes and modifications made by those skilled in the art do not depart from spirit and scope, then it all should be in this Shen
It please be in the protection scope of appended claims.
Claims (10)
1. a kind of inner piece for bend pipe operation characterized by comprising at least three outer blocks, described each outer piece by card
Spring, which is fixed together, forms the hollow structure of an olive-type shape, and the section of the hollow structure is the shape for adapting to pipe fitting, institute
The outer piece of outer block interior tooth of setting is stated, there is an inner prop, the outer tooth of inner prop setting inner prop, the inner prop in the hollow structure
Divide left inside column and right inner prop two parts, the left inside column and right inner prop pass through the attachment device including left and right multi-directional ball and connecting rod
It is attached, so that pull connecting rod, relatively described outer piece of the inner prop is moved, and outer block is inwardly received under the action of circlip
Contracting, inner piece are drawn out pipe fitting.
2. the inner piece according to claim 1 for bend pipe operation, which is characterized in that described outer piece is four, each
Outer piece is arranged in quarter turn.
3. the inner piece according to claim 2 for bend pipe operation, which is characterized in that the inner wall of each outer block
If the centre of the outer piece of interior tooth has recess portion there are two outer piece of interior tooth.
4. the inner piece according to claim 3 for bend pipe operation, which is characterized in that the outer tooth of the inner prop is set to a left side
The shape of the position of the outside wall surface corresponding recess of inner prop, the outer tooth of the inner prop is adapted with the recess portion.
5. the inner piece according to claim 3 for bend pipe operation, which is characterized in that the outside wall surface of the right inner prop is set
Set convex tooth.
6. the inner piece according to claim 5 for bend pipe operation, which is characterized in that outside the convex tooth and the inner prop
Tooth is on the same axis.
7. the inner piece according to claim 1 for bend pipe operation, which is characterized in that it is convex that the inner prop is additionally provided with a circle
Platform.
8. the inner piece according to claim 6 for bend pipe operation, which is characterized in that outer piece of the surface setting is soft
Property housing.
9. the inner piece according to claim 2 for bend pipe operation, which is characterized in that the attachment device further includes using
In the left and right fixation watt for strutting left and right multi-directional ball.
10. the inner piece according to claim 9 for bend pipe operation, which is characterized in that between fixed watt of the left and right
With spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910764032.1A CN110405025A (en) | 2019-08-19 | 2019-08-19 | A kind of inner piece for bend pipe operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910764032.1A CN110405025A (en) | 2019-08-19 | 2019-08-19 | A kind of inner piece for bend pipe operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110405025A true CN110405025A (en) | 2019-11-05 |
Family
ID=68367994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910764032.1A Pending CN110405025A (en) | 2019-08-19 | 2019-08-19 | A kind of inner piece for bend pipe operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110405025A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU963609A1 (en) * | 1981-03-04 | 1982-10-07 | Тамбовский институт химического машиностроения | Core for bending tubes |
| JPH0647452A (en) * | 1992-08-04 | 1994-02-22 | Showa Alum Corp | Mandrel device for bending |
| CN1111447A (en) * | 1993-06-25 | 1995-11-08 | 达金工业株式会社 | Tube expanding mandrel, tube expanding method and tube expanding apparatus using tube expanding mandrel, and heat exchanger having heat exchanging tube which is subjected to tube expanding by tube exp |
| JP2003145219A (en) * | 2001-11-13 | 2003-05-20 | Mitsubishi Heavy Ind Ltd | Method for bending tube and tool for preventing deformation used for the same |
| KR20090100992A (en) * | 2008-03-21 | 2009-09-24 | 태진산업(주) | Processing device of pipe |
| DE102009050800A1 (en) * | 2009-10-27 | 2011-04-28 | Volkswagen Ag | Bending mandrel for bending device for inserting bends into straight tubes, has expanding element with bodies distributed at periphery, where bodies rest against each other along contact plane running via axis of mandrel in resting position |
| CN102581092A (en) * | 2012-02-28 | 2012-07-18 | 江阴中南重工股份有限公司 | Inner core die for bent pipe |
| CN102728674A (en) * | 2012-06-20 | 2012-10-17 | 成都飞机工业（集团）有限责任公司 | Inner supporting device for assisting numerical control bend forming of conduit |
| US20130125608A1 (en) * | 2011-11-23 | 2013-05-23 | Carl Meiners | Multi-sided tube swaging apparatus and method |
| US20140090434A1 (en) * | 2012-09-28 | 2014-04-03 | Mitsubishi Heavy Industries, Ltd. | Pipe diameter expansion apparatus and pipe diameter expansion method |
| CN210847809U (en) * | 2019-08-19 | 2020-06-26 | 贵州航天智慧农业有限公司 | A interior lining spare for return bend operation |
-
2019
- 2019-08-19 CN CN201910764032.1A patent/CN110405025A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU963609A1 (en) * | 1981-03-04 | 1982-10-07 | Тамбовский институт химического машиностроения | Core for bending tubes |
| JPH0647452A (en) * | 1992-08-04 | 1994-02-22 | Showa Alum Corp | Mandrel device for bending |
| CN1111447A (en) * | 1993-06-25 | 1995-11-08 | 达金工业株式会社 | Tube expanding mandrel, tube expanding method and tube expanding apparatus using tube expanding mandrel, and heat exchanger having heat exchanging tube which is subjected to tube expanding by tube exp |
| US5685190A (en) * | 1993-06-25 | 1997-11-11 | Daikin Industries, Ltd. | Expanding mandrel, expanding method and expanding apparatus using the expanding mandrel and heat exchanger with heat exchanging tubes expanded by the expanding method |
| JP2003145219A (en) * | 2001-11-13 | 2003-05-20 | Mitsubishi Heavy Ind Ltd | Method for bending tube and tool for preventing deformation used for the same |
| KR20090100992A (en) * | 2008-03-21 | 2009-09-24 | 태진산업(주) | Processing device of pipe |
| DE102009050800A1 (en) * | 2009-10-27 | 2011-04-28 | Volkswagen Ag | Bending mandrel for bending device for inserting bends into straight tubes, has expanding element with bodies distributed at periphery, where bodies rest against each other along contact plane running via axis of mandrel in resting position |
| US20130125608A1 (en) * | 2011-11-23 | 2013-05-23 | Carl Meiners | Multi-sided tube swaging apparatus and method |
| CN102581092A (en) * | 2012-02-28 | 2012-07-18 | 江阴中南重工股份有限公司 | Inner core die for bent pipe |
| CN102728674A (en) * | 2012-06-20 | 2012-10-17 | 成都飞机工业（集团）有限责任公司 | Inner supporting device for assisting numerical control bend forming of conduit |
| US20140090434A1 (en) * | 2012-09-28 | 2014-04-03 | Mitsubishi Heavy Industries, Ltd. | Pipe diameter expansion apparatus and pipe diameter expansion method |
| CN210847809U (en) * | 2019-08-19 | 2020-06-26 | 贵州航天智慧农业有限公司 | A interior lining spare for return bend operation |
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