CN105107894A - Pipe bender - Google Patents
Pipe bender Download PDFInfo
- Publication number
- CN105107894A CN105107894A CN201510518978.1A CN201510518978A CN105107894A CN 105107894 A CN105107894 A CN 105107894A CN 201510518978 A CN201510518978 A CN 201510518978A CN 105107894 A CN105107894 A CN 105107894A
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- pipe
- pressure
- pressure pipe
- handle
- head
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Abstract
The invention discloses a pipe bender. According to the pipe bender, the angle of force applying handles can be conveniently and rapidly adjusted in the pipe bending process, so that more labor is saved when a pipe is bent, and the technical problems that when the pipe is bent from 90 degrees to 180 degrees in the prior art, force is applied difficultly by an operator due to the fact that the two handles are close to each other continuously, and the pipe bending efficiency and quality are seriously affected are solved. The pipe bender comprises the fixed handle and a pipe bending disc arranged at one end of the fixed handle. A pipe press head capable of clamping a copper pipe and rotating along the annular face of the pipe bending disc is rotationally connected to the pipe bending disc. The pipe press head is rotationally connected to the inner side end of the pipe press handle through a long arc-shaped hole and a rotary shaft penetrating into the long arc-shaped hole in a sliding mode. The outer side end of the pipe press handle extends outside the pipe press head corresponding to the upper portion of the fixed handle. A front press rotary pin and a rear press rotary pin are arranged side by side at the portion, close to the long arc-shaped hole, of the pipe press head. The pipe press handle horizontally abuts against the front press rotary pin or the rear press rotary pin or perpendicularly penetrates through the portion between the front press rotary pin and the rear press rotary pin to drive the pipe press head to rotate along the outer ring face of the pipe bending disc.
Description
Technical field
The present invention relates to a kind of pipe bender, particularly relate to one and can conveniently adjust force handle angle in bend pipe process, make bend pipe process more easily labour-saving pipe bender.
Background technology
The metal tube such as stainless steel tube, copper pipe in use often needs bending to change original straight line circulating direction, and pipe bender is the specific purpose tool for bending metals pipe.Existing lever pipe bender is generally utilize lever principle, drives pressure pipe head to force metal tube by the circular arc distortion of specifying, obtain the metal tube bent with manpower.But in bend pipe process, when being especially folded into 180 degree from 90 degree, because now two handles are constantly close, operator exerts a force difficulty, wastes time and energy, have a strong impact on efficiency and the quality of bend pipe processing.
Summary of the invention
The present invention mainly provides one can conveniently adjust force handle angle in bend pipe process, bend pipe is made to process more easily labour-saving pipe bender, solve exist in prior art add man-hour from 90 degree of bend pipes being folded into 180 degree, due to two handles constantly near and cause operator to exert a force difficulty, have a strong impact on the technical problem of the efficiency of bend pipe processing and quality etc.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of pipe bender, comprise fixed handle and be located at the bend pipe dish of fixed handle one end, bend pipe dish is rotationally connected the pressure pipe head that can clamp copper pipe and to rotate along its outer ring surface, described pressure pipe head is connected to the medial extremity of pressure pipe handle by long arc hole and the slip axis of rotation interted in long arc hole, the outboard end of pressure pipe handle extends to outside pressure pipe head corresponding above fixed handle, near long arc hole pressure pipe head on be provided with side by side before pressure ship and resell on another market and rear pressure ship and resell on another market, pressure pipe handle is flat ships and resell on another market against front pressure or pressure is shipped and resell on another market afterwards, or vertically intert and be with dynamic pressure tube head to rotate along bend pipe dish outer ring surface between front pressure is shipped and resell on another market and rear pressure is shipped and resell on another market.Pressure pipe handle is slidably connected in the rotating shaft of pressure pipe head by long arc hole and also keeps being rotationally connected, man-hour is added at 0 degree to 90 degree bend pipe, namely pressure pipe handle can utilize lever principle, pressure was shipped and resell on another market or was pressed afterwards and shipped and resell on another market as fulcrum upwards rotates in the past, when bend pipe is more than 90 degree, because pressure pipe handle and fixed handle are apart from constantly close, operator is exerted a force difficulty, pressure pipe handle is now pulled to be slided in the relative long arc hole of rotating shaft, reverse flip pulls pressure pipe upwards again, before pressure pipe handle medial extremity is inserted, between rear pressure is shipped and resell on another market, pressure pipe handle and fixed handle is made to become nearly 90 degree of angles, heretofore, rear pressure is shipped and resell on another market as fulcrum, intermittently complete the bend pipe processing of 90 degree to 180 degree, structure is simple, the angular adjustment of pressure pipe handle is convenient and swift, make full use of lever principle, bend pipe is processed more easily laborsaving, thus ensure that the efficiency that bend pipe is processed and quality.
As preferably, rectangle flap is extended with in the outside integral type of medial extremity of described pressure pipe handle, the middle part of rectangle flap medial extremity is located at along the length direction of pressure pipe handle in long arc hole, corresponding upper limit groove and the lower limit groove being provided with interworking of shipping and reselling on another market with rear pressure again in the upper and lower corner of rectangle flap medial extremity.Connect rectangle flap in the medial extremity integral type of pressure pipe handle, be convenient to the processing in the fixing of pressure pipe handle and long arc hole; By arranging upper limit groove and the lower limit groove of interworking of shipping and reselling on another market with rear pressure in the upper and lower corner of rectangle flap medial extremity correspondence, namely limit by upper and lower limit position groove the bend pipe that pressure pipe handle carries out 90 degree to 180 degree after 0 degree to 90 degree bend pipe is processed and pressure pipe handle upwards overturns and add position in man-hour, avoid pressure pipe handle phase countershaft in bend pipe process to slide, improve the security reliability of processing.
Forward and backward pressure is shipped and resell on another market and can be located at the top in long arc hole, as preferably, parallelly on the outer ring surface of described bend pipe dish to be provided with and detent under the annular of copper pipe interworking, the pressure pipe head corresponding with detent under annular is rotationally connected pressure pipe successively take turns, copper pipe is clamped in by pressure pipe wheel and carries out around bending in the lower detent of annular, and front pressure is shipped and resell on another market and rear pressure is shipped and resell on another market is located between long arc hole and pressure pipe take turns.When forward and backward pressure is shipped and resell on another market between long arc hole and pressure pipe are taken turns, compact conformation is reasonable, and the conversion of pressure pipe handle angle is convenient and swift.
As more preferably, described pressure pipe head is the U-shaped structure that Open Side Down, the medial extremity of pressure pipe handle is rotatably connected in rotating shaft corresponding between pressure pipe head opening, and pressure pipe head corresponding above rotating shaft forms breach, pressure pipe head is wherein connected on the mesopore of bend pipe dish by the twin shaft link rotatable of U-shaped, and outwards press-bending baffle plate is extended with downwards on the pressure pipe head sidewall corresponding with twin shaft connecting rod, pressure pipe head clamping copper pipe is connected on corresponding twin shaft connecting rod along press-bending baffle wedge when rotating around bend pipe dish outer ring surface.By downward extended press-bending baffle plate outside on the pressure pipe head sidewall of U-shaped structure, and be connected on the twin shaft connecting rod of respective side by press-bending baffle wedge, namely pressure pipe head drives twin shaft connection-rod linkage by press-bending baffle plate, the active force of dynamic twin shaft connecting rod and pressure pipe head connecting axle is reduced with this, ensure relative positional accuracy, improve bend pipe machining accuracy.
As preferably, the bottom surface of described bend pipe dish is provided with the spacing hook of copper pipe of L shape, one end of the spacing hook of copper pipe is rotatably connected on the bottom surface of bend pipe dish, and hooking when the other end rotates forward is also connected on outer ring surface corresponding to copper pipe bending initiating terminal.There is the spacing hook of the copper pipe of L shape to be rotatably connected on the bottom surface of bend pipe dish, rotate copper pipe spacing hook during use and outwards realize copper pipe positioning function, add in turning to during collection, save accommodation space, be convenient for carrying and use.
As preferably, pressure pipe head near described copper pipe bending initiating terminal is provided with reversible deformation wheel, reversible deformation wheel is provided with annular reversible deformation groove, and the cross section of annular reversible deformation groove is isosceles triangle, and copper pipe is clamped between two waist limits corresponding on annular reversible deformation groove and bend pipe dish.By on the pressure pipe head of front side correspondence of taking turns in pressure pipe, reversible deformation wheel is set, reversible deformation wheel is that the annular reversible deformation groove symmetric clamp of isosceles triangle is in the both sides of copper pipe by cross section, when reversible deformation wheel go for a stroll pipe dish rotate make copper pipe bend distortion time, reversible deformation wheel can force copper pipe to be out of shape by set triangle, namely the outer ring surface of copper pipe is protruding towards leg-of-mutton reversible deformation wheel drift angle direction, this projection is for offsetting the natural deformation of copper pipe in postorder BENDING PROCESS, namely be first out of shape in advance by reversible deformation wheel and bend pipe dish clamping copper pipe before copper pipe carries out bend pipe processing, by pressure pipe wheel and bend pipe dish, formal bend pipe is carried out to copper pipe again and add the predeformation getting final product automotive resistance man-hour and fall above, copper pipe is made to recover original round tube shape, thus the cross section circularity of auto modification copper pipe, ensure that the quality of bend pipe.
As more preferably, the waist limit of the annular reversible deformation groove corresponding with described copper pipe is the arc surfaced of indent.When the waist limit of annular reversible deformation groove is the arc surfaced of indent, copper pipe deformation plance when deformation can be made to smoothly transit, thus the deformation avoiding bend pipe to add man-hour produce the defects such as local dent
Therefore, pipe bender of the present invention has following advantage: pressure pipe handle is slidably connected in the rotating shaft of pressure pipe head by long arc hole and also keeps being rotationally connected, at the bend pipe processing initial stage, before pressure pipe handle, rear pressure is shipped and resell on another market as fulcrum upwards rotates the normal bend pipe processing of maintenance, when bending is more than 90 degree, before pulling pressure pipe handle to overturn upwards insertion again, rear pressure has carried out the bend pipe processing of 90 degree to 180 degree between shipping and reselling on another market, structure is simple, the angular adjustment of pressure pipe handle is convenient and swift, make full use of lever principle, bend pipe is processed more easily laborsaving, thus ensure that the efficiency that bend pipe is processed and quality, copper pipe can be forced to carry out predeformation by the shape of setting by reversible deformation wheel, predeformation offsets copper pipe being naturally out of shape in postorder bending machining process again, thus the cross section making copper pipe final keeps good circularity, ensure that the quality of bend pipe.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of a kind of pipe bender of the present invention;
Fig. 2 is the explosive view of a kind of pipe bender of the present invention;
Fig. 3 is the partial structurtes schematic diagram of pressure pipe handle in the present invention;
Partial structurtes schematic diagram when Fig. 4 is the use of reversible deformation of the present invention wheel;
Fig. 5 is the schematic diagram of the present invention before installing copper pipe;
Fig. 6 is the schematic diagram of the present invention after installing copper pipe;
Fig. 7 is that the present invention is by schematic diagram during copper pipe bending 90 degree;
Fig. 8 carries out the schematic diagram after angular adjustment to pressure pipe handle in the present invention;
Fig. 9 is that the present invention is by schematic diagram during copper pipe double flat.
Detailed description of the invention:
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
As depicted in figs. 1 and 2, a kind of pipe bender of the present invention, comprise fixed handle 1 and be fixed by screws in the semicircular bend pipe dish 2 of fixed handle 1 one end, bend pipe dish 2 is rotationally connected by the twin shaft connecting rod 15 of U-shaped and can clamps pressure pipe that copper pipe 3 rotates along its outer ring surface 4, one end of twin shaft connecting rod 15 is rotatably connected in the mesopore of bend pipe dish 2, the other end rotates in pressure pipe 4, pressure pipe 4 is connected on bend pipe dish 2 outer ring surface for rolling, and opening is towards the U-shaped structure at bend pipe dish 2 center, laterally rotating shaft 6 is fixed wtih between the two side bottom the pressure pipe 4 near U-shaped, the medial extremity of pressure pipe handle 5 is rotatably connected in rotating shaft 6 corresponding between opening by long arc hole 7, the pressure pipe corresponding with twin shaft connecting rod 15 4 sidewall outwards extend to form a press-bending baffle plate 16 downwards, pressure pipe 4 clamping copper pipe 3 are connected on corresponding twin shaft connecting rod 15 along press-bending baffle plate 16 when rotating around the bending of bend pipe dish 2 outer ring surface, breach 19 is formed bottom the pressure pipe of the U-shaped corresponding with rotating shaft 64, pressure pipe handle 5 is positioned at breach 19 when upwards rotating, the outboard end of pressure pipe handle 5 extends to outside pressure pipe corresponding above fixed handle 14, press before the pressure pipe of pressure pipe between 4 openends and rotating shaft 64 is installed with one side by side ship and resell on another market 8 and one press afterwards and ship and resell on another market 9, front pressure ship and resell on another market 8 and rear pressure ship and resell on another market and 9 cross between the two side of pressure pipe 4, as shown in Figure 3, the outside integral type of medial extremity of pressure pipe handle 5 extends to form rectangle flap 12, long arc hole 7 is opened in the middle part of rectangle flap 12 medial extremity along the length direction of pressure pipe handle 5, upper at rectangle flap 12 medial extremity, lower corner is corresponding upper limit groove 13 and the lower limit groove 14 having the arc of 9 interworkings of shipping and reselling on another market with rear pressure again.Parallelly on the outer ring surface of bend pipe dish 2 to have and detent 10 under the annular of copper pipe 3 interworking, the pressure pipe corresponding with detent under annular 10 4 be rotationally connected reversible deformation take turns 18 and pressure pipe take turns 11, reversible deformation wheel 18 is near the bending initiating terminal of copper pipe 3, as shown in Figure 4, the outer ring surface of reversible deformation wheel 18 has annular reversible deformation groove 181, the cross section of annular reversible deformation groove 181 is isosceles triangle, copper pipe 3 is clamped between two waist limits corresponding on annular reversible deformation groove 181 and bend pipe dish 2, and the waist limit of the annular reversible deformation groove 181 corresponding with copper pipe 3 is the arc surfaced of indent, copper pipe 3 is clamped under annular by pressure pipe wheel 11 again and carries out around bending in detent 10 after taking turns 18 predeformation through reversible deformation, the bottom surface of bend pipe dish 2 is fixed wtih the spacing hook 17 of copper pipe of a L shape, one end of the spacing hook 17 of copper pipe is rotatably connected on by bearing pin on the bottom surface of bend pipe dish 2, the hooking when other end rotates forward is also connected on outer ring surface corresponding to copper pipe 3 bending initiating terminal.
During use, as shown in Figure 5, promote pressure pipe handle 5 downward, rotating shaft 6 is made to be positioned at the rearmost end in long arc hole 7, and pressure is shipped and resell on another market on 8 before making lower limit groove 14 interworking on pressure pipe handle 5 be connected to, rotate clockwise pressure pipe handle 5 and make its relative fixed handle 1 outwards in 180 degree of expansion, as shown in Figure 6, copper pipe 3 is inserted between bend pipe dish 2 and pressure pipe 4, the spacing hook 17 of outside rotation copper pipe, make copper pipe spacing hook 17 hooking and be connected on outer ring surface corresponding to copper pipe 3 bending initiating terminal, rotate counterclockwise pressure pipe handle 5 again, copper pipe 3 is made to be clamped between the annular reversible deformation groove 181 of detent 10 and reversible deformation wheel 18 under the annular of bend pipe dish 2, pull pressure pipe handle 5 more upwards, rotating shaft 6 is made to be positioned at long arc hole 7 foremost, and rotate pressure pipe handle 5 and be connected to rear pressure and ship and resell on another market on 9, pressure pipe handle 5 pairs of copper pipes 3 are pulled to carry out bend pipe processing counterclockwise, as shown in Figure 7, until copper pipe 3 is bent into nearly 90 degree, as shown in Figure 8, overturn pressure pipe handle 5 again, pressure pipe handle 5 twisted rotary shaft 6 is rotated clockwise, until the medial extremity of pressure pipe handle 5 be positioned at front pressure ship and resell on another market 8 and rear pressure ship and resell on another market between 9, promote pressure pipe handle 5 downwards again, rotating shaft 6 is made to be positioned at the rearmost end in long arc hole 7, and make upper limit groove 13 interworking on pressure pipe handle 5 be connected to rear pressure to ship and resell on another market on 9, as shown in Figure 9, continue again to pull pressure pipe handle 5 counterclockwise, until copper pipe 3 is bent into 180 degree, reverse operating, pressure pipe handle 5 resets and removes copper pipe 3 after launching 180 degree and namely completes bend pipe processing.
Specific embodiment described herein is only to design of the present invention explanation for example.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (7)
1. a pipe bender, comprise fixed handle (1) and be located at the bend pipe dish (2) of fixed handle (1) one end, bend pipe dish (2) is rotationally connected the pressure pipe head (4) that can clamp copper pipe (3) and to rotate along its outer ring surface, it is characterized in that: described pressure pipe head (4) is rotationally connected the medial extremity of pressure pipe handle (5) by long arc hole (7) and the rotating shaft (6) interted in long arc hole (7) of sliding, the outboard end of pressure pipe handle (5) extends to pressure pipe head (4) corresponding to fixed handle (1) top outward, press before pressure pipe head (4) near long arc hole (7) is provided with side by side and to ship and resell on another market (8) and rear pressure ships and resell on another market (9), pressure pipe handle (5) is flat ships and resell on another market (8) against front pressure or rear pressure ships and resell on another market (9), or vertically intert and to ship and resell on another market (8) and rear pressure is shipped and resell on another market between (9) and is with dynamic pressure tube head (4) to rotate along bend pipe dish (2) outer ring surface in front pressure.
2. pipe bender according to claim 1, it is characterized in that: be extended with rectangle flap (12) in the outside integral type of medial extremity of described pressure pipe handle (5), the middle part of rectangle flap (12) medial extremity is located at along the length direction of pressure pipe handle (5) in long arc hole (7), and in the upper and lower corner of rectangle flap (12) medial extremity, correspondence is provided with upper limit groove (13) and the lower limit groove (14) of (9) interworking of shipping and reselling on another market with rear pressure again.
3. pipe bender according to claim 1 and 2, it is characterized in that: parallelly on the outer ring surface of described bend pipe dish (2) to be provided with and detent (10) under the annular of copper pipe (3) interworking, the pressure pipe head (4) corresponding with detent under annular (10) is rotationally connected pressure pipe successively take turns (11), copper pipe (3) is clamped in by pressure pipe wheel (11) and carries out around bending in the lower detent (10) of annular, and front pressure is shipped and resell on another market (8) and rear pressure is shipped and resell on another market (9) is located at long arc hole (7) and pressure pipe is taken turns between (11).
4. pipe bender according to claim 3, it is characterized in that: described pressure pipe head (4) is the U-shaped structure that Open Side Down, the medial extremity of pressure pipe handle (5) is rotatably connected in rotating shaft (6) corresponding between pressure pipe head (4) opening, and breach (19) is formed on the pressure pipe head (4) that rotating shaft (6) top is corresponding, pressure pipe head (4) is wherein rotatably connected on the mesopore of bend pipe dish (2) by the twin shaft connecting rod (15) of U-shaped, and outwards press-bending baffle plate (16) is extended with downwards on pressure pipe head (4) sidewall corresponding with twin shaft connecting rod (15), pressure pipe head (4) clamping copper pipe (3) is connected on corresponding twin shaft connecting rod (15) along press-bending baffle plate (16) when rotating around bend pipe dish (2) outer ring surface.
5. pipe bender according to claim 1 and 2, it is characterized in that: the spacing hook of copper pipe (17) being provided with L shape on the bottom surface of described bend pipe dish (2), one end of the spacing hook of copper pipe (17) is rotatably connected on the bottom surface of bend pipe dish (2), and hooking when the other end rotates forward is also connected on outer ring surface corresponding to copper pipe (3) bending initiating terminal.
6. pipe bender according to claim 1, it is characterized in that: on the pressure pipe head (4) near described copper pipe (3) bending initiating terminal, be provided with reversible deformation wheel (18), reversible deformation wheel (18) is provided with annular reversible deformation groove (181), the cross section of annular reversible deformation groove (181) is isosceles triangle, and copper pipe (3) is clamped between upper two the corresponding waist limits of annular reversible deformation groove (181) and bend pipe dish (2).
7. pipe bender according to claim 6, is characterized in that: the waist limit of the annular reversible deformation groove (181) corresponding with described copper pipe (3) is the arc surfaced of indent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518978.1A CN105107894B (en) | 2015-08-21 | 2015-08-21 | pipe bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510518978.1A CN105107894B (en) | 2015-08-21 | 2015-08-21 | pipe bender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105107894A true CN105107894A (en) | 2015-12-02 |
| CN105107894B CN105107894B (en) | 2017-12-12 |
Family
ID=54656129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510518978.1A Active CN105107894B (en) | 2015-08-21 | 2015-08-21 | pipe bender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105107894B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001213A (en) * | 2016-06-16 | 2016-10-12 | 安徽省恒胜机电工程股份有限公司 | Handheld easily-stripped pipe bending machine |
| CN108097755A (en) * | 2017-12-25 | 2018-06-01 | 巨石集团成都有限公司 | A kind of contravariant zigzag pipe bender Z and its bending method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2979976A (en) * | 1959-04-06 | 1961-04-18 | Imp Eastman Corp | Plier-type tube bending tool |
| US6609405B1 (en) * | 2002-10-15 | 2003-08-26 | Stride Tool Inc. | Tube bender and method of using same |
| CN102039334A (en) * | 2009-10-23 | 2011-05-04 | 艾默生管道工具(上海)有限公司 | Pipe bender |
| CN202715677U (en) * | 2012-08-20 | 2013-02-06 | 江苏高淳陶瓷股份有限公司 | Predeformation pinch wheel of bend |
| CN103962426A (en) * | 2013-01-25 | 2014-08-06 | 艾温工业工具公司 | Tube lever bender and related method of use |
| CN205032515U (en) * | 2015-08-21 | 2016-02-17 | 蒋友荣 | Pipe bender |
-
2015
- 2015-08-21 CN CN201510518978.1A patent/CN105107894B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2979976A (en) * | 1959-04-06 | 1961-04-18 | Imp Eastman Corp | Plier-type tube bending tool |
| US6609405B1 (en) * | 2002-10-15 | 2003-08-26 | Stride Tool Inc. | Tube bender and method of using same |
| CN102039334A (en) * | 2009-10-23 | 2011-05-04 | 艾默生管道工具(上海)有限公司 | Pipe bender |
| CN202715677U (en) * | 2012-08-20 | 2013-02-06 | 江苏高淳陶瓷股份有限公司 | Predeformation pinch wheel of bend |
| CN103962426A (en) * | 2013-01-25 | 2014-08-06 | 艾温工业工具公司 | Tube lever bender and related method of use |
| CN205032515U (en) * | 2015-08-21 | 2016-02-17 | 蒋友荣 | Pipe bender |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001213A (en) * | 2016-06-16 | 2016-10-12 | 安徽省恒胜机电工程股份有限公司 | Handheld easily-stripped pipe bending machine |
| CN106001213B (en) * | 2016-06-16 | 2019-06-04 | 合肥智权信息科技有限公司 | A kind of pipe bender holding easy de- material |
| CN108097755A (en) * | 2017-12-25 | 2018-06-01 | 巨石集团成都有限公司 | A kind of contravariant zigzag pipe bender Z and its bending method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105107894B (en) | 2017-12-12 |
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Effective date of registration: 20220613 Address after: 317500 No. 5, the third street, East New Area, Wenling City, Taizhou City, Zhejiang Province Patentee after: ZHEJIANG VALUE MECHANICAL & ELECTRICAL PRODUCTS Co.,Ltd. Address before: 317500 Wenling City Industrial City, Taizhou, Zhejiang, south of Kowloon Avenue. Patentee before: Jiang Yourong |
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