CN103644277B - Portable electric telescopic joint rod - Google Patents
Portable electric telescopic joint rod Download PDFInfo
- Publication number
- CN103644277B CN103644277B CN201310653612.6A CN201310653612A CN103644277B CN 103644277 B CN103644277 B CN 103644277B CN 201310653612 A CN201310653612 A CN 201310653612A CN 103644277 B CN103644277 B CN 103644277B
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- China
- Prior art keywords
- rod
- screw
- telescopic joint
- mother nut
- tooth
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
Portable electric telescopic joint rod, be a kind of rotated by driven by motor screw rod after directly drive n root telescopic joint rod successively, and hand-holdable the Portable electric telescopic joint rod of motion; When mother nut rises to pin place with screw rod, pin can pass through the groove in this nut, can be stuck when anti-tooth screw is by pin place, and screw rod just drives in the anti-tooth nut of anti-tooth screw precession lateral expansion loop bar; Again anti-rattler screwed off subsequently and inhale in pin place stabilization; Along with mother nut continues up until screwing out screw rod, the related lateral expansion pole of the anti-tooth screw in lower section and telescopic sleeving rod vertical ascent, the mother nut below lateral expansion pole is raised to screw mandrel portion from polished rod portion; Now this mother nut can continue again to rise, and when rising to below the anti-rattler rotated with screw rod, anti-rattler just screws in the thread above mother nut and continues to rise with mother nut; This structure is terse, can produce portable erection class and lifting class instrument or equipment.
Description
Technical field
The present invention relates to a kind of Portable electric telescopic joint rod, specifically: be a kind of rotated by driven by motor screw rod after can directly drive n root tubular type telescopic joint rod successively, and the people that leave hand-held the Portable electric telescopic joint rod of one way or another stretching motion.
Background technology
Currently, all kinds of electric lifting rods because of the limitation of its internal structure, the people that do not adapt to leave hand-held the feature of one way or another stretching motion, there is following weak point.
1. pair own wt and outside dimension have serious limitation.
2., after selecting relatively thin or speciality screw rod to be driven, when it does transversal stretching motion, screw rod can produce shake.
3. serious fault can be produced when stretching motion is downward inverted by elevating lever.
4. in structure, the inadequate science of design causes processing difficulties, is less useful for batch production.
Summary of the invention
The invention aims to overcome above-mentioned deficiency, propose a kind of compact conformation to be rotated by electric motor driven screw, screw rod drives the mother nut of each telescopic joint rod bottom successively, and the anti-tooth screw being suspended on mother nut lower end can be driven by screw rod, screwing in the anti-tooth nut in respective lateral expansion sleeve pipe, the anti-rattler below each anti-tooth screw can ensure that screw rod will not produce shake when one way or another stretching motion section by section.
The present invention gives with following methods and realizing.
Portable electric telescopic joint rod motor below is fixed on motor rack, and the rotating shaft of motor is pressed with driving gear and is meshed with the driven gear being fixed on below screw rod polished rod portion, bearing above driven gear presses solidly on fixed mount, again fixed mount is loaded in motor rack, then the lower end of fixed mount and outside telescopic joint rod is inserted in motor rack, and is screwed in case disengaging; The upper end of screw rod is screw mandrel portion and its lower end has one section for polished rod portion, screw thread rib above its screw mandrel portion has two protrusion pins of 180 degree each other, it is drilled with the through hole of a circle in the middle part of two pins, is embedded in one block of strong magnetic Magnet of cylinder at its round tube hole
With screw axis with point-blank, and diameter is linked in the round telescopic joint rod of n root together from big to small successively and round telescopic sleeving rod is installed in around screw rod, and telescopic sleeving rod top is attracted each other fixing by round location its magnetic force of magnetic sheet being arranged parallel to each other between each tube wall and inlay, outside telescopic joint rod bottom is connected with motor rack and fixes;A sliding bearing is respectively inlayed in the inner side on each telescopic sleeving rod top, one section of anti-tooth nut of inwall place processing of its bottom, and process a step at outer wall place and be connected then with the telescopic joint rod thread below each, the lower section of respective telescopic joint rod is used that thread is connected to a mother nut, except telescopic joint rod and outside telescopic sleeving rod outside, the outer wall of all the other n root telescopic joint rod and telescopic sleeving rod all has a up/down perforation the directed muscle protruded, this orientation muscle can pass through in the orientation notch of respective lateral expansion loop bar inwall up/down perforation, and screw on a roof panel at the top thread of lateral expansion loop bar,
The lower section of each n root telescopic joint rod is used that thread screws a respective mother nut, the bottom of its screw thread inside groove of each mother nut deepens a groove all again, suspended on an anti-tooth screw of correspondence below, each anti-tooth screw periphery screw thread matches with the anti-tooth nut thread on corresponding lateral expansion loop bar inwall, identical with the pitch on screw rod screw mandrel but the hand of spiral is contrary, and its inner headed face and screw rod opposite face are processed into aluminum matter internal spline, the pearl groove of one week half of circle is all had below each mother nut and above each anti-tooth screw, when pearl groove one overall pearl groove of synthesis of two half of circles, after passing through to pour into little steel ball into Zhu Dao in pearl groove, anti-tooth screw just can be suspended on below mother nut and freely smoothly rotate, lower section thread at relatively each anti-tooth screw is connected to an anti-rattler, the lower section of anti-rattler also can be saved its upper end thread of the mother nut in telescopic joint rod with outside one and be attached, but it is not connected with during original state herein, and anti-rattler inner headed face and screw rod opposite position are processed into steel internal spline
During electric expansion pole original state, except the mother nut below lateral expansion pole is engaged on screw rod screw mandrel position, all the other each mother nuts all rest in screw rod polished rod position, and the bearing of the anti-tooth screw of bottom and bottom is closely; For alleviating the own wt of product except screw rod. except anti-rattler fuse Magnet, remaining parts is aluminum alloy materials or charcoal brazing material, and the maximum outside diameter of product should be suitable for hand-held for appropriate.
The round telescopic joint rod of n root of the present invention waits all in original position when stretching out, when after electrical power, its rotating shaft rotates with the driving gear on moving axis, drive screw rod do opposite direction rotary motion thus engaging driven gear, at this moment only have the mother nut being screwed in screw rod screw mandrel portion below lateral expansion pole the sixth of the twelve Earthly Branches and anti-tooth screw below and anti-rattler can along with the driving of screw rod vertical ascent, because the directed muscle on lateral expansion loop bar and its cylindrical wall of lateral expansion pole is blocked by the orientation notch at adjacent expansion loop bar inwall place, so each telescopic sleeving rod and telescopic joint rod can only make vertical stretching motion, rotate without followed by screw rod, even if now Portable electric telescopic joint rod being turned around use, because each phase magnet in telescopic sleeving rod top has powerful mutual attractive force, it is assured that in this case all the other each mother nuts to be held in original position motionless, to prevent each mother nut from moving to screw rod screw mandrel position without authorization up, when the mother nut of lateral expansion pole bottom moves to screw rod pin place, because the bottom of mother nut screw thread inside groove deepens a groove, so the pin on screw rod can pass through this groove without being obstructed, when anti-tooth screw below mother nut is by screw rod pin place, pin will snap in the aluminum matter inner spline groove of anti-tooth screw inner headed face, thus screw rod just drives anti-tooth screw to reversely rotate, at this moment the thread of anti-tooth screw periphery is just in below the anti-tooth nut at lateral expansion loop bar inwall place, reverse rotation along with anti-tooth screw, in the anti-tooth screw just precession anti-tooth nut at lateral expansion loop bar inwall place, along with the continuation anti-tooth screw of rising of mother nut have left screw rod pin position, the motion of its reverse rotation also just stopped, at this moment the anti-rattler of lower section enters again the pin place of screw rod, in like manner pin will snap in the steel inner spline groove of anti-rattler inner headed face, and drive anti-rattler to reversely rotate it is screwed out from the lower section of anti-tooth screw, attractive by force due to centrifugal force produced when screw rod rotates and screw rod two pin middle part Magnet, anti-rattler is left in followed by screw rod herein and rotates, thus playing the effect preventing screw rod from shaking, when mother nut continues to rise, because anti-tooth screw below has screwed in the anti-tooth nut in lateral expansion loop bar inwall the sixth of the twelve Earthly Branches, just can be inconjunction with lateral expansion sleeve pipe for this mother nut and flexible pipe joint extends perpendicularly out, and after the mother nut of lateral expansion pole bottom screws out screw rod completely, at this moment the mother nut below lateral expansion pole has risen to screw mandrel portion already from the polished rod portion of screw rod, now the mother nut below lateral expansion pole then continues to again toward rising, when chat on being raised to followed by screw rod rotate anti-rattler below time, anti-rattler has screwed in again in the thread above mother nut, thus allowing mother nut eject pin position and to follow mother nut and rise together, and the principle that all the other each n root telescopic joint rod are stretched out with front chat identical.
Portable electric telescopic joint rod is when stretching, extension section by section needs after putting in place to retract, inverse process with reference to above-mentioned stretching, extension principle, changing motor power polarity rear motor rotating shaft just drives screw rod to rotate forward motion, at this moment retraction movement made by that mother nut that bottom is screwed on screw rod, and anti-tooth screw below by screw rod pin place time, pin just snaps in the aluminum matter inner spline groove of anti-tooth screw inner headed face, thus screw rod just drives anti-tooth screw to rotate forward, just anti-tooth screw is screwed out from the anti-tooth nut of outside telescopic sleeving rod lower end, when mother nut down runs through screw rod pin place, pin can pass through the groove bottom mother nut screw thread inside groove, and the anti-rattler above mother nut can be blocked by pin and screw out, such anti-rattler is held by the Magnet of screw rod two pin middle part again, and rest on this follow screw rod rotate, when mother nut continues down to run to the polished rod portion of screw rod with telescopic joint rod and the telescopic sleeving rod of top, the mother nut on another joint of screw tip has screwed in screw rod already, along with the continuation of this joint mother nut is descending, anti-tooth screw below just encounters and rests on screw rod place and follow the anti-rattler of rotation, along with the anti-rattler that rotates of screw rod has just screwed in the lower section of anti-tooth screw, and descending and descending along with mother nut, the principle descending with a upper telescopic joint rod of descending process hereafter is identical.
Below in conjunction with accompanying drawing, the present invention is done explanation careful further.
Accompanying drawing explanation
Fig. 1 is the present invention: Portable electric telescopic joint rod scheme is in structure cross-sectional schematic during original position;
Fig. 2 is the present invention: each related components schematic diagram of Portable electric telescopic joint rod scheme.
Detailed description of the invention
In fig. 1 and 2, motor 18 is screwed in the lower section of motor rack 16, and the driving gear 17 being pressed in motor 18 rotating shaft engages driven gear 19, and driven gear 19 pressure circle is in the bottom in screw rod polished rod portion 13, the lower end in screw rod polished rod portion 13 is pressed in the endoporus of bearing 15, and the periphery of bearing 15 is pressed in the circular hole of fixed mount 14, outside telescopic joint rod 20 is enclosed within the outside of fixed mount 14, is then inserted in the inner chamber of motor rack 16 by the lower end of fixed mount 14 and outside telescopic joint rod 20, the upper end of screw rod is screw rod screw mandrel portion 2 and its lower end has one section for screw rod polished rod portion 13, screw thread rib above screw rod screw mandrel portion 2 has two 180 degree of pins 7 protruded each other, it is drilled with a round tube hole b in the middle part of two pins 7, is embedded in one block of strong magnetic Magnet 27 of cylinder at its round tube hole, diameter is linked in the round telescopic joint rod of n root together from big to small successively and round telescopic sleeving rod is arranged on about centered by screw rod, and n root telescopic sleeving rod top is attract mutually by being arranged parallel to each other between each tube wall and inlaying its magnetic force of round location magnetic sheet 28, a sliding bearing 5 is respectively inlayed in the inner side on each telescopic sleeving rod top, and one section of anti-tooth nut 8 of inwall place processing of bottom, and process a step at outer wall place and be connected then with the n root telescopic joint rod thread of each lower section, it is connected to a mother nut 9 with thread below lateral expansion pole 21, and each the lower section of n root telescopic joint rod is used that thread is connected to a mother nut 9, except outside telescopic joint rod 20 and outside telescopic sleeving rod 6, the outer wall of all the other n root telescopic joint rod and n root telescopic sleeving rod all has the directed muscle 4 of a up/down perforation and protrusion, this orientation muscle 4 can pass through in the orientation notch 26 of respective lateral expansion loop bar inwall up/down perforation, and twist a roof panel 1 at the top thread of lateral expansion loop bar 3,The bottom of each its screw thread inside groove of mother nut 9 deepens a groove 23, suspended on an anti-tooth screw 10 of correspondence below, the anti-tooth spiral shell tooth 22 of each anti-tooth screw periphery matches with the anti-tooth spiral shell tooth of anti-tooth nut 8 on corresponding lateral expansion loop bar inwall, identical with the pitch in screw rod screw mandrel portion 2 but the hand of spiral is contrary, that is: screw rod screw mandrel portion 2 screw thread when being left-handed each anti-tooth screw 10 screw thread be dextrorotation, and screw rod screw mandrel portion 2 screw thread when being dextrorotation each anti-tooth screw 10 screw thread be left-handed, and anti-tooth screw 10 inner headed face is corresponding with screw rod and is processed into aluminum matter internal spline 25, one week half of ball groove is all had below each mother nut and above each anti-tooth screw, half edge bead groove position below mother nut is inserted in above anti-tooth screw recessed round internal, recessed round half internal edge bead groove above half edge bead groove below mother nut and anti-tooth screw is made to form an overall pearl groove 12, little steel ball can be irrigated in pearl groove 12 by entering pearl road a, when little steel ball just closes pearl road a after filling, so anti-tooth screw 10 just can be suspended on the lower section of mother nut 8 and freely smoothly rotate, lower section thread at relatively each anti-tooth screw is connected to an anti-rattler 11, the lower section of anti-rattler 11 also can be saved its upper end thread of the mother nut in telescopic joint rod with outside one and be attached, it is not connected with during original state, and the inner headed face of steel anti-rattler fuse c and screw rod corresponding section are processed into steel internal spline 24.
Work process when Portable electric telescopic joint rod is stretched out: drive driving gear 17 after motor 18 energising and engage driven gear 19 and drive screw rod screw mandrel portion 2 to reversely rotate again, mother nut 9 below lateral expansion pole 21 is in screw rod screw mandrel portion 2 this moment, remaining mother nut 9 is in screw rod polished rod portion 13, and the directed muscle 4 on lateral expansion pole 21 and lateral expansion loop bar 3 outer wall is in the orientation notch 26 of lateral expansion loop bar inwall place up/down perforation, such screw rod just can drive the mother nut 9 below lateral expansion pole 21 up to move both vertically, the mutual attraction of location magnetic sheet 28 is first overcome when mother nut 9 begins to ramp up, when arriving pin 7, the groove 23 in its screw thread can allow pin 7 pass through, and pin 7 can snap in the aluminum matter internal spline 25 inside the anti-tooth screw 10 in lower section, screw rod screw mandrel portion 2 is just driven anti-tooth screw 10 to reversely rotate by pin 7, thus the anti-tooth spiral shell tooth 22 of anti-tooth screw 10 periphery has been screwed on lateral expansion loop bar inwall in anti-tooth nut 8, then pin 7 has snapped in again in the steel internal spline 24 inside the anti-rattler 11 of lower section, thus anti-rattler 11 has been revolved from the lower section of anti-tooth screw 10, and held by Magnet 27 and to rest on pin 7 and rotate with screw rod, mother nut 9 continuation rising just can be inconjunction with lateral expansion sleeve pipe and flexible pipe joint extends perpendicularly out, after the mother nut 9 of lateral expansion pole 21 bottom screws out screw rod screw mandrel portion 2 completely, the mother nut 9 below lateral expansion pole has risen to screw rod screw mandrel portion 2 from screw rod polished rod portion 13 already, mother nut 9 below lateral expansion pole continues to rise, when be raised to followed by screw rod screw mandrel portion 2 rotate anti-rattler 11 below time, anti-rattler 11 has screwed in again in the thread above mother nut 9, and allow mother nut 9 eject 7 heels of pin along with mother nut 9 together continue rise.
Work process when Portable electric telescopic joint rod is descending:, change motor 18 electric power polarity, electric motor driven screw screw mandrel portion 2 rotates forward, downward movement done by the mother nut 9 of bottom, when anti-tooth screw 10 below is by pin 7, pin 7 snap in anti-tooth screw 10 inner circle to aluminum matter inner spline groove 25 in, screw rod screw mandrel portion 2 drives anti-tooth screw 10 to rotate forward, anti-tooth screw 10 screws out from the anti-tooth nut 8 of outside telescopic sleeving rod lower end, when mother nut 9 is by screw rod pin 7 place, pin 7 can pass through the groove 23 bottom mother nut 9 screw thread inside groove, and the anti-rattler 11 above mother nut 9 is blocked by pin 7 and screws out, such anti-rattler 11 is held by the Magnet 27 of screw rod two pin 7 middle part, and follow screw rod screw mandrel portion 2 and rotate,When mother nut 9 continues down to run to screw rod polished rod portion 13, the mother nut 9 on another joint of top, screw rod screw mandrel portion 2 has already screwed in screw rod screw mandrel portion 2; Along with the continuation of this joint mother nut 9 is descending, anti-tooth screw 10 below encounters at screw rod screw mandrel place of portion 2 anti-rattler 11 following rotation, anti-rattler 11 has screwed in the lower section of anti-tooth screw 10 subsequently, and continues descending with mother nut 9, and hereafter descending principle is identical with a upper telescopic joint rod.
When non-transformer, available hand crank drives screw mandrel to rotate; For alleviating own wt, the round reduction pole of n root and reduction loop bar should select the light materials such as aluminium alloy carbon fibre; The electric power polarity changing direct current generator can change the direction of rotation of motor, stretches out or descending state thus Portable electric telescopic joint rod can be changed.
Claims (2)
1. a Portable electric telescopic joint rod, motor below is fixed on motor rack, and the rotating shaft of motor is pressed with driving gear and is meshed with the driven gear being fixed on below screw rod polished rod portion, bearing above driven gear is pressed on fixed mount, fixed mount loads in motor rack, outside telescopic joint rod lower end can be inserted in motor rack, and is screwed; Screw thread rib above screw rod screw mandrel portion has two protrusion pins of 180 degree each other, a round tube hole it is drilled with in the middle part of two pins, one piece of cylinder-shaped magnet it is embedded in its hole, with screw axis with point-blank, and diameter is linked in the round telescopic joint rod of n root together from big to small successively and round telescopic sleeving rod is installed in the periphery of screw rod, and telescopic sleeving rod top is by being arranged parallel to each other between each tube wall and inlaying round location magnetic sheet; It is characterized in that, the inner side on each telescopic sleeving rod top respectively studs with a sliding bearing, inwall in its lower end has one section of anti-tooth nut, and outer wall thread is connected with the respective telescopic joint rod in lower section, and the lower section of each telescopic joint rod is used that thread is connected to a mother nut; Except telescopic joint rod and outside telescopic sleeving rod outside, the outer wall of all the other telescopic joint rod and telescopic sleeving rod all has a up/down perforation the directed muscle protruded, this orientation muscle can pass through in the orientation notch of respective lateral expansion loop bar inwall up/down perforation; Hang over its inner headed face of anti-tooth screw below mother nut and screw rod corresponding section and be processed into aluminum matter internal spline, and periphery screw thread is identical with its pitch of screw thread in screw rod screw mandrel portion but direction of rotation is contrary; Lower section thread at anti-tooth screw is connected to an anti-rattler, and the lower section thread of anti-rattler saves its top of the mother nut in telescopic joint rod and is connected with outside one, and anti-rattler inner headed face and screw rod opposite position are processed into steel internal spline; During telescopic joint rod Guan Bi except the mother nut below lateral expansion pole is engaged on screw rod screw mandrel position, all the other each mother nuts all rest in screw rod polished rod position.
2. by the Portable electric telescopic joint rod described in claim 1, it is characterized in that: the mother nut below each telescopic joint rod, its thread-groove bottom deepens a groove all again, one week half of ball groove is all had below each mother nut and above each anti-tooth screw, when two half of ball grooves synthesize an overall pearl groove, by entering Zhu Dao toward after filling little steel ball in pearl groove, anti-tooth screw just can be suspended on below mother nut and freely smoothly rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653612.6A CN103644277B (en) | 2013-12-01 | 2013-12-01 | Portable electric telescopic joint rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310653612.6A CN103644277B (en) | 2013-12-01 | 2013-12-01 | Portable electric telescopic joint rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103644277A CN103644277A (en) | 2014-03-19 |
| CN103644277B true CN103644277B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310653612.6A Active CN103644277B (en) | 2013-12-01 | 2013-12-01 | Portable electric telescopic joint rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN103644277B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587722B (en) * | 2016-03-09 | 2017-11-17 | 崔鲁彬 | Electronic screwed pipe telescopic joint pipe |
| CN105757080B (en) * | 2016-03-18 | 2018-10-23 | 冯卫斌 | It is a kind of that there is the Multi-section telescopic rod that voluntarily push and pull is combined |
| CN108113322A (en) * | 2018-02-28 | 2018-06-05 | 广州虹润纺织品科技有限公司 | A kind of mosquito net frame of automatically retractable |
| CN109110671B (en) * | 2018-06-06 | 2020-08-14 | 崔鲁彬 | Electric screw self-locking connection lifting joint rod |
| CN114654504A (en) * | 2022-04-29 | 2022-06-24 | 烟台艾睿光电科技有限公司 | Large-stroke push rod, pushing and lifting device and robot adopting pushing and lifting device |
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| EP0992641A1 (en) * | 1998-10-07 | 2000-04-12 | Shinko Corporation | Beam supporter |
| CN1986334A (en) * | 2005-12-23 | 2007-06-27 | 梅西耶-布加蒂公司 | Telescopic actuator with a main rod and an auxiliary rod, and method applying said actuator |
| CN102001601A (en) * | 2010-09-05 | 2011-04-06 | 崔鲁彬 | Electric spiral lifting rod |
| CN202971795U (en) * | 2012-12-25 | 2013-06-05 | 马新全 | Multilevel pipe-shaped linear motor-driven push rod |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2731343B2 (en) * | 1993-12-22 | 1998-03-25 | 三菱電機株式会社 | jack |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0992641A1 (en) * | 1998-10-07 | 2000-04-12 | Shinko Corporation | Beam supporter |
| CN1986334A (en) * | 2005-12-23 | 2007-06-27 | 梅西耶-布加蒂公司 | Telescopic actuator with a main rod and an auxiliary rod, and method applying said actuator |
| CN102001601A (en) * | 2010-09-05 | 2011-04-06 | 崔鲁彬 | Electric spiral lifting rod |
| CN202971795U (en) * | 2012-12-25 | 2013-06-05 | 马新全 | Multilevel pipe-shaped linear motor-driven push rod |
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| Publication number | Publication date |
|---|---|
| CN103644277A (en) | 2014-03-19 |
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Application publication date: 20140319 Assignee: Hangzhou Huayiqiang Industrial Co.,Ltd. Assignor: Cui Lubin Contract record no.: X2021330000436 Denomination of invention: Portable electric telescopic joint rod Granted publication date: 20160608 License type: Exclusive License Record date: 20211014 |
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Assignee: Hangzhou Huayiqiang Industrial Co.,Ltd. Assignor: Cui Lubin Contract record no.: X2021330000436 Date of cancellation: 20230525 |
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