CN108500156A - A kind of portable electric hydraulic tube expander - Google Patents
A kind of portable electric hydraulic tube expander Download PDFInfo
- Publication number
- CN108500156A CN108500156A CN201810557918.4A CN201810557918A CN108500156A CN 108500156 A CN108500156 A CN 108500156A CN 201810557918 A CN201810557918 A CN 201810557918A CN 108500156 A CN108500156 A CN 108500156A
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- China
- Prior art keywords
- planetary gear
- shell
- motor
- hydraulic cylinder
- portable electric
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- 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.)
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Classifications
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- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention belongs to swage technique fields, more particularly to a kind of portable electric hydraulic tube expander, including shell and swollen body, swollen body is located at outside shell, the interior intracavitary of shell is equipped with the hydraulic cylinder for driving tube expansion body component operation, the piston rod of hydraulic cylinder is flexibly connected across shell with swollen body, the input terminal of hydraulic cylinder, which is equipped with, stretches into oil pocket inside hydraulic cylinder, control piston rod does the plunger moved back and forth, the interior intracavitary of the shell is additionally provided with for driving plunger to make the motor moved back and forth, the switching mechanism moved back and forth for converting the spinning motion of shaft to plunger is equipped between the shaft and plunger of the motor.Hand-held part need to be only held when use of the present invention, divides valve to be inserted into pipe the elastic tube expansion on swollen body, singly refers to by lower switch, you can carry out tube expansion operation, it is convenient and laborsaving to use very simple.
Description
Technical field
The invention belongs to swage technique fields, and in particular to a kind of portable electric hydraulic tube expander.
Background technology
Pipe-expander is manufacture, when repairing all kinds of containers for the inside and outside diameter of enlarged pipe, make tube-to-tube sheet connection contact site
It is tightly engaged into, and the bonding tool that rises of certain pressure can be born.For pipe with small pipe diameter pipe carry out tube expansion when can only use substantially
Manual tube expander is used very difficultly, if the inadequate conference of hand strength keeps tube expansion effect not up to standard, is asked to solve this
It inscribes, a kind of hydraulic tube expander is disclosed in Chinese patent, which is provided with oil pressure pump, right on the hydraulic cylinder cavity of oil pressure pump
Be connected to branch sleeve, piston slidably connected in branch sleeve, the inner end of piston is connected with hydraulic cylinder cavity, with it is described
The opposite branch sleeve other end of hydraulic cylinder cavity is connected with swollen body, is clamped in swollen body for fixing pipe fitting
Tube expansion holder assembly, the port of pipe fitting is towards branch sleeve and extends to corresponding tube expansion body component cavity on the inside of tube expansion holder assembly
It is interior, it is equipped in the outboard end of piston and may extend to the expanded tube joint being plugged in swollen body and coaxially in pipe port.It should
Device is driven by oil pressure pump, which is still required for artificial force and pressed in actual use using handle drives
Handle could carry out tube expansion operation, use and still cause high effort for.
Invention content
The present invention all uses hand-driven mode for the tube expansion tool for being used for tube expansion in the prior art, uses
The drawbacks of causing high effort for provides a kind of portable electric hydraulic tube expander, which drives swollen body, and
Hydraulic cylinder is driven by motor, very convenient to use laborsaving.
The goal of the invention of the present invention is achieved through the following technical solutions：A kind of portable electric hydraulic tube expander, packet
Shell and swollen body are included, swollen body is located at outside shell, and the interior intracavitary of shell is equipped with for driving swollen body work
The piston rod of the hydraulic cylinder of work, hydraulic cylinder is flexibly connected across shell with swollen body, and the input terminal of hydraulic cylinder is set
Have stretch into oil pocket inside hydraulic cylinder, control piston rod does the plunger moved back and forth, the interior intracavitary of the shell is additionally provided with
For driving plunger to make the motor moved back and forth, it is equipped with the spinning motion of shaft between the shaft and plunger of the motor
It is converted into the switching mechanism of plunger moved back and forth.
In above-mentioned technical proposal, motor can control the plunger on hydraulic cylinder by switching mechanism and move back and forth,
To drive hydraulic cylinder to work, and then swollen body is driven to carry out tube expansion work to pipe by the piston rod on hydraulic cylinder
Industry, whole process only needs manual operation motor, and motor mostly uses greatly switch control, the very simple that operates it is convenient with
And it is laborsaving.
Preferably, the switching mechanism includes the crankcase of fixed setting inside the shell, it is equipped with by motor in crankcase
The bent axle of driving, the bent axle are socketed with connection ring outside, and the bearing for being used to support bent axle is equipped between bent axle and connection ring, described
Plunger is fixedly connected across crankcase with connection ring.When motor driven crankshafts rotate, bent axle is rotated in connection ring, because of the song of bent axle
The distance of each position in face to the central axis of bent axle is different, so connection ring can transport up and down in a certain range when crank rotation
It is dynamic, and then plunger is driven to do reciprocating motion up and down back and forth, and then the piston rod controlled on hydraulic cylinder does back and forth reciprocal fortune
It is dynamic.
Preferably, being equipped with planetary gear train, the input terminal of planetary gear train and the shaft of motor between the motor and bent axle
Connection, the output end of planetary gear train are connect with the bent axle.
Preferably, the planetary gear train includes the gear-box for being fixed on shell inner cavity, it is fixedly connected in gear-box interior
Gear, internal gear is interior to be equipped at least one set of planetary gear set being arranged along internal gear central axis, the planetary gear set packet
Include pinion frame, the center of the end face of pinion frame is fixedly connected with fixed gear, pinion frame it is another
End face is fixedly connected with several axis pins, and the distance of all axis pins to the central axis of fixed gear is equal, and axis pin is equipped with can be around
The planetary gear of axis pin rotation, the planetary gear is engaged with internal gear, on the planetary gear and adjacent planetary gear set
Fixation gear engagement；It is fixedly connected with driving gear in the shaft of motor, the planet in the planetary gear set of motor
Gear is engaged with driving gear, and link slot, the bent axle are provided on the pinion frame in the planetary gear set of bent axle
It is fixedly connected with connecting pole towards one end of planetary gear train, connecting pole is embedded in the link slot；All fixed gear,
Bent axle is located along the same line.
In above-mentioned technical proposal, planetary gear train is in use, the driving gear on motor drives in first planetary gear set
Planetary gear rotation, to drive the pinion frame rotation in first planetary gear set, which drives again
Driving gear rotation in second planetary gear set, and then drive planetary gear set to move successively, multigroup planetary gear set is folded
The speed changing effect of planetary gear train entirety can be promoted after adding, in the present invention, the effect of planetary gear train is to slow down, and makes the rotating speed of bent axle
Less than the rotating speed of the shaft of motor, and then slow down the motion frequency of plunger, finally slow down the motion frequency of thimble, if thimble is transported
It is dynamic too fast, the decline to pipe expander tube quality can be caused, so the setting of planetary gear train, which can be promoted, ensures tube expansion operation of the present invention
When expander tube quality.
Preferably, being additionally provided with the battery for providing electric power for motor on the shell, control is equipped between motor and battery
The switch of motor work.
Preferably, being fixedly connected with the battery socket for being useful for connection motor and battery, battery and battery on the shell
It is arranged in the outside of shell at connection, the battery is detachably fixed by the way that primary and secondary snap-type is arranged between socket.
Preferably, the swollen body includes the end cover nut being fixedly connected with the cylinder body of hydraulic cylinder, end cap spiral shell
Female outer end is fixedly connected with tube expansion head, is fixedly connected on the tube expansion head and is surrounded by several elastic tube expansions of a circle and divides valve,
The swollen body further includes that end cover nut can be passed through to drive elastic tube expansion that valve is divided to be flared out the thimble for carrying out tube expansion operation,
Thimble is flexibly connected with the piston rod of hydraulic cylinder and is driven by piston rod, and being equipped between the piston rod and end cover nut can control
The spring that thimble processed is moved to hydraulic cylinder direction.
Preferably, the piston rod top of the hydraulic cylinder is equipped with thimble location hole, the thimble tail end is embedded in thimble
It achieves a fixed connection in location hole and by the way that stop screw is arranged between thimble and piston rod；The piston rod is equipped with convex block,
The spring one end is connect with convex block, and the inner end connection of the spring other end and end cover nut, the spring is socketed in piston rod
Outside.When plunger controls the piston rod of hydraulic cylinder toward retraction, spring energy mate-assist piston rod is in the oil pocket of hydraulic cylinder
Contracting, and then control thimble and detached to enclosure interior movement with swollen body so that the tube expansion on swollen body divides valve to reply
To initial position, the pipe after tube expansion is enable to be removed from swollen body, completes tube expansion, also done for tube expansion operation next time
Prepare.
Preferably, the motor, planetary gear train, switching mechanism three are located on same axis, and motor, planetary gear
Axis where system, switching mechanism three is parallel with axis where hydraulic cylinder.Above-mentioned technical proposal can avoid overall structure
It is long, housing interior volume can be maximally utilized, keeps the present invention more portable.
Preferably, the shell is equipped with hand-held part, the switch is arranged on hand-held part.
Compared with prior art, the invention has the advantages that：It is swollen for driving that the present invention is provided with hydraulic cylinder
Body, and swollen body is connected by switching mechanism, planetary gear train and motor and is driven by motor, and it is electricity to be equipped with
Machine provides the battery of electric power, and when use need to only hold hand-held part, divides valve to be inserted into pipe the elastic tube expansion on swollen body,
Singly refer to by lower switch, you can drive swollen body to carry out pipe by motor, planetary gear train, switching mechanism, hydraulic cylinder
It is convenient and laborsaving to use very simple for tube expansion operation.Meanwhile the more compact setting of each structure of the present invention is inside the shell, and
Provided with battery so that the present invention can carry use, very convenient.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is explosive view of the present invention；
Fig. 3 is planetary gear train structural schematic diagram；
Fig. 4 is transformational structure internal structure schematic diagram；
It is marked in figure：1, shell, 2, link slot, 3, swollen body, 4, hydraulic cylinder, 5, plunger, 6, motor, 7, interpreter
Structure, 8, connection ring, 9, bent axle, 10, planetary gear train, 11, gear-box, 12, internal gear, 13, planetary gear set, 14, planetary gear
Frame, 15, fixed gear, 16, axis pin, 17, planetary gear, 18, driving gear, 19, connecting pole, 20, battery, 21, switch, 22,
Battery socket, 23, primary and secondary buckle, 24, end cover nut, 25, tube expansion head, 26, elastic tube expansion divide valve, 27, thimble, 28, spring,
29, thimble location hole, 30, stop screw, 31, convex block, 33, hand-held part, 34, crankcase, 35, bearing, 36, locating slot.
Specific implementation mode
The invention will be further described for represented embodiment below in conjunction with the accompanying drawings：
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of portable electric hydraulic tube expander, including shell 1 and swollen body 3 are swollen
Body 3 is located at outside shell 1, and the interior intracavitary of shell 1 is equipped with the hydraulic cylinder 4 for driving swollen body 3 to work, hydraulic pressure
The piston rod of oil cylinder 4 is flexibly connected across shell 1 with swollen body 3, and the input terminal of hydraulic cylinder 4, which is equipped with, stretches into hydraulic cylinder
4 inside oil pockets, control piston rod do the plunger 5 moved back and forth, and the interior intracavitary of the shell 1 is additionally provided with for driving plunger
5 make the motor 6 moved back and forth, are equipped between the shaft and plunger 5 of the motor 6 and convert the spinning motion of shaft to column
The switching mechanism 7 of plug 5 moved back and forth.
The switching mechanism 7 includes the crankcase 34 being fixed in shell 1, is equipped in crankcase 34 and is driven by motor 6
Dynamic bent axle 9, the bent axle 9 are socketed with connection ring 8 outside, and the bearing for being used to support bent axle 9 is equipped between bent axle 9 and connection ring 8
35, the plunger 5 is fixedly connected across crankcase 34 with connection ring 8.The section at the middle part position of the connection ring 8 is key-way shape
Structure.
Planetary gear train is equipped between the motor 6 and bent axle 9, the input terminal of planetary gear train is connect with the shaft of motor 6, row
The output end of star wheel series is connect with the bent axle 9.
The planetary gear train includes the gear-box 11 for being fixed on 1 inner cavity of shell, and internal gear is fixedly connected in gear-box 11
12, internal gear 12 is interior to be equipped at least one set of 17 group 13 of planetary gear being arranged along 12 central axis of internal gear, the planet tooth
It includes 17 frame 14 of planetary gear to take turns 17 group 13, and the center of the end face of 17 frame 14 of planetary gear is fixedly connected with fixed gear
15, the other end of 17 frame 14 of planetary gear is fixedly connected with several axis pins 16, and all axis pins 16 arrive the center of fixed gear 15
The distance of axis is equal, and axis pin 16 is equipped with the planetary gear 17 that can be rotated around axis pin 16, the planetary gear 17 and internal tooth
12 engagement of wheel, the fixation gear 15 on 17 group 13 of the planetary gear 17 and adjacent planetary gear engage.It is solid in the shaft of motor 6
Surely it is connected with driving gear 18, the planetary gear 17 on 17 group 13 of the planetary gear of motor 6 is engaged with driving gear 18,
It is provided with link slot 2 on 17 frame 14 of planetary gear on 17 group 13 of the planetary gear of bent axle 9, the bent axle 9 is towards planet
One end of train is fixedly connected with connecting pole 19, and connecting pole 19 is embedded in the link slot 2；All fixed gear 15,
Bent axle 9 is located along the same line.
It is additionally provided with the battery 20 that electric power is provided for motor 6 on the shell 1, control electricity is equipped between motor 6 and battery 20
The switch 21 that machine 6 works.The shell 1 is equipped with hand-held part, and the switch 21 is arranged on hand-held part.It is solid on the shell 1
Surely it is connected with the battery socket 22 for connecting motor 6 and battery 20, by the way that primary and secondary is arranged between battery 20 and battery socket 22
Buckle 23 forms and is detachably fixed connection, and the battery 20 is arranged in the outside of shell 1.
The swollen body 3 includes the end cover nut 24 being fixedly connected with the cylinder body of hydraulic cylinder 4, outside end cover nut 24
End is fixedly connected with tube expansion head 25, is fixedly connected on the tube expansion head 25 and is surrounded by several elastic tube expansions of a circle and divides valve
26, the swollen body 3 further includes that can drive elastic tube expansion that valve 26 is divided to be flared out across end cover nut 24 to carry out tube expansion work
The thimble 27 of industry, thimble 27 are flexibly connected with the piston rod of hydraulic cylinder 4 and are driven by piston rod, the piston rod and end cap spiral shell
The spring 28 that thimble 27 is moved to 4 direction of hydraulic cylinder can be controlled by being equipped between mother 24.
The piston rod top of the hydraulic cylinder 4 is equipped with thimble location hole 29, and 27 tail end of the thimble is embedded in thimble positioning
It achieves a fixed connection in hole 29 and by the way that stop screw 30 is arranged between thimble 27 and piston rod；The piston rod is equipped with convex block
31,28 one end of the spring is connect with convex block 31, and 28 other end of spring is connect with the inner end of end cover nut 24, the spring 28
It is socketed in outside piston rod.
The motor 6, planetary gear train 10,7 three of switching mechanism are located on same axis, and motor 6, planetary gear train 10,
Axis where 7 three of switching mechanism is parallel with 4 place axis of hydraulic cylinder.The crankcase 34 is equipped with locating slot 36, institute
Hydraulic cylinder 4 is stated to be fixedly mounted in locating slot 36.
Specific embodiments are merely illustrative of the spirit of the present invention described in text.The technical field of the invention
Technical staff can make various modifications or additions to the described embodiments or substitute by a similar method,
However, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of portable electric hydraulic tube expander, which is characterized in that including shell（1）With swollen body（3）, tube expansion body group
Part is located at outside shell, and the interior intracavitary of shell is equipped with the hydraulic cylinder for driving tube expansion body component operation（4）, the work of hydraulic cylinder
Stopper rod is flexibly connected across shell with swollen body, and the input terminal of hydraulic cylinder, which is equipped with, stretches into oil pocket inside hydraulic cylinder, control
Piston rod processed does the plunger moved back and forth（5）, the interior intracavitary of the shell is additionally provided with reciprocal for driving plunger to do back and forth
The motor of movement（6）, it is equipped between the shaft and plunger of the motor and converts the spinning motion of shaft to the past back and forth of plunger
The switching mechanism moved again（7）.
2. a kind of portable electric hydraulic tube expander according to claim 1, which is characterized in that the switching mechanism includes
The crankcase of fixed setting inside the shell（34）, crankcase is interior to be equipped with by motor-driven bent axle（9）, it is socketed with outside the bent axle
Connection ring（8）, the bearing for being used to support bent axle is equipped between bent axle and connection ring（35）, the plunger is across crankcase and connect
Ring is fixedly connected.
3. a kind of portable electric hydraulic tube expander according to claim 2, which is characterized in that the motor and bent axle it
Between be equipped with planetary gear train（10）, the shaft of the input terminal of planetary gear train and motor connects, the output end of planetary gear train and the song
Axis connection.
4. a kind of portable electric hydraulic tube expander according to claim 3, which is characterized in that the planetary gear train includes
It is fixed on the gear-box of shell inner cavity（11）, internal gear is fixedly connected in gear-box（12）, internal gear is interior to be equipped at least one set
The planetary gear set being arranged along internal gear central axis（13）, the planetary gear set includes pinion frame（14）, planet
The center of the end face of tooth rest is fixedly connected with fixed gear（15）, the other end of pinion frame is fixedly connected with
Several axis pins（16）, the distance of all axis pins to the central axis of fixed gear is equal, and axis pin is equipped with and can be rotated around axis pin
Planetary gear（17）, the planetary gear engages with internal gear, the planetary gear and the fixation in adjacent planetary gear set
Gear engages；It is fixedly connected with driving gear in the shaft of motor（18）, the planet tooth in the planetary gear set of motor
Wheel is engaged with driving gear, and link slot is provided on the pinion frame in the planetary gear set of bent axle（2）, the bent axle
It is fixedly connected with connecting pole towards one end of planetary gear train（19）, connecting pole is embedded in the link slot；All fixations
Gear, bent axle are located along the same line.
5. a kind of portable electric hydraulic tube expander according to claim 1, which is characterized in that be additionally provided on the shell
The battery of electric power is provided for motor（20）, the switch of control motor work is equipped between motor and battery（21）.
6. a kind of portable electric hydraulic tube expander according to claim 5, which is characterized in that fixed on the shell to connect
It is connected to the battery socket for connecting motor and battery（22）, buckled between battery and battery socket by the way that primary and secondary is arranged（23）Shape
At connection is detachably fixed, the battery is arranged in the outside of shell.
7. a kind of portable electric hydraulic tube expander according to claim 1, which is characterized in that the swollen body packet
Include the end cover nut being fixedly connected with the cylinder body of hydraulic cylinder（24）, end cover nut outer end is fixedly connected with tube expansion head（25）,
It is fixedly connected on the tube expansion head and is surrounded by several elastic tube expansions of a circle and divides valve（26）, the swollen body further includes energy
The thimble that elastic tube expansion divides valve to be flared out progress tube expansion operation is driven across end cover nut（27）, the work of thimble and hydraulic cylinder
Stopper rod is flexibly connected and is driven by piston rod, and thimble can be controlled to hydraulic cylinder side by being equipped between the piston rod and end cover nut
To mobile spring（28）.
8. a kind of portable electric hydraulic tube expander according to claim 7, which is characterized in that the work of the hydraulic cylinder
Stopper rod top is equipped with thimble location hole（29）, the thimble tail end insertion thimble location hole is interior and passes through between thimble and piston rod
Stop screw is set（30）It achieves a fixed connection；The piston rod is equipped with convex block（31）, the spring one end connect with convex block,
The spring other end and the inner end of end cover nut connect, and the spring is socketed on piston rod.
9. a kind of portable electric hydraulic tube expander according to claim 4, which is characterized in that the motor, planetary gear
System, switching mechanism three are located on same axis, and axis and hydraulic oil where motor, planetary gear train, switching mechanism three
Axis where cylinder is parallel.
10. a kind of portable electric hydraulic tube expander according to claim 5, which is characterized in that the shell is equipped with
Hand-held part（33）, the switch setting is on hand-held part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557918.4A CN108500156A (en) | 2018-06-01 | 2018-06-01 | A kind of portable electric hydraulic tube expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810557918.4A CN108500156A (en) | 2018-06-01 | 2018-06-01 | A kind of portable electric hydraulic tube expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108500156A true CN108500156A (en) | 2018-09-07 |
Family
ID=63402192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810557918.4A Pending CN108500156A (en) | 2018-06-01 | 2018-06-01 | A kind of portable electric hydraulic tube expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108500156A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110693687A (en) * | 2019-10-11 | 2020-01-17 | 永康市泰琪健身器材有限公司 | Easy-to-operate fascia gun |
| CN111636840A (en) * | 2020-06-24 | 2020-09-08 | 松原市永久石油技术服务有限公司 | Reducing rolling type expansion pipe column and using method thereof |
| CN113649483A (en) * | 2021-07-26 | 2021-11-16 | 浙江飞越机电有限公司 | Multifunctional electric hydraulic pipe fitting machining tool |
| CN114406113A (en) * | 2022-02-17 | 2022-04-29 | 山东爱客多热能科技有限公司 | Oil-free multi-petal type pipe expander, pipe expanding equipment and heat exchange pipe connecting method |
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| US5195354A (en) * | 1989-03-31 | 1993-03-23 | Japan Storage Battery Co., Ltd. | Cam crank mechanism and motor driven hydraulic tool |
| EP0878287A1 (en) * | 1997-05-12 | 1998-11-18 | Virax S.A. | Expanding device for forming bells at plastic or plastic/aluminium tube ends |
| EP1407838A2 (en) * | 2002-10-11 | 2004-04-14 | Rothenberger Aktiengesellschaft | Expanding tool for hollow bodies with an electrohydraulic drive |
| CN104797357A (en) * | 2012-09-28 | 2015-07-22 | 古斯塔夫.克劳克有限责任公司 | Portable tool, portable expanding apparatus, hydraulic piston/cylinder arrangement and method for operating a portable tool |
| CN204842715U (en) * | 2015-05-07 | 2015-12-09 | 诸暨市艾拓五金工具有限公司 | Automatic expand tube instrument |
| CN107838304A (en) * | 2017-11-14 | 2018-03-27 | 高亚贵 | Planetary pipe-expanding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195354A (en) * | 1989-03-31 | 1993-03-23 | Japan Storage Battery Co., Ltd. | Cam crank mechanism and motor driven hydraulic tool |
| EP0878287A1 (en) * | 1997-05-12 | 1998-11-18 | Virax S.A. | Expanding device for forming bells at plastic or plastic/aluminium tube ends |
| EP1407838A2 (en) * | 2002-10-11 | 2004-04-14 | Rothenberger Aktiengesellschaft | Expanding tool for hollow bodies with an electrohydraulic drive |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110693687A (en) * | 2019-10-11 | 2020-01-17 | 永康市泰琪健身器材有限公司 | Easy-to-operate fascia gun |
| CN111636840A (en) * | 2020-06-24 | 2020-09-08 | 松原市永久石油技术服务有限公司 | Reducing rolling type expansion pipe column and using method thereof |
| CN113649483A (en) * | 2021-07-26 | 2021-11-16 | 浙江飞越机电有限公司 | Multifunctional electric hydraulic pipe fitting machining tool |
| WO2023005888A1 (en) * | 2021-07-26 | 2023-02-02 | 浙江飞越机电有限公司 | Multifunctional electric hydraulic pipe fitting machining tool and automatic control method therefor |
| CN113649483B (en) * | 2021-07-26 | 2024-04-26 | 浙江飞越机电有限公司 | Multifunctional electric hydraulic pipe fitting processing tool |
| CN114406113A (en) * | 2022-02-17 | 2022-04-29 | 山东爱客多热能科技有限公司 | Oil-free multi-petal type pipe expander, pipe expanding equipment and heat exchange pipe connecting method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180907 |
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| RJ01 | Rejection of invention patent application after publication |