CN106392985B - Driver-extractor - Google Patents
Driver-extractor Download PDFInfo
- Publication number
- CN106392985B CN106392985B CN201610639775.2A CN201610639775A CN106392985B CN 106392985 B CN106392985 B CN 106392985B CN 201610639775 A CN201610639775 A CN 201610639775A CN 106392985 B CN106392985 B CN 106392985B
- Authority
- CN
- China
- Prior art keywords
- trailing arm
- lower support
- handle
- bolt
- guide rail
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
The driver-extractor of the present invention, by joining beam in lower support, rise to pull out and switch fulcrum between trailing arm, push lower support in turn by rotatable handle, rise and pull out trailing arm and move up, and pass through cam handle and push reversing plate switching mechanism direction so that driver-extractor can reset cycle use or safety storage；Utilize the repeatedly reciprocal segmentation prying and pulling from embedded sandstone soil by earthing pole of lever jack principle, column guide rail has several profiled holes being evenly arranged, it is capable of providing sufficiently high earthing pole and pulls out stroke, it is applicable in the inserted mode of any hard ground earthing pole, it can also be used to which some weights are lifted；Ensure that earthing pole demolishing process smoothly, easily, fast, ensures engineering construction progress, improves working efficiency.
Description
Technical field
The present invention relates to a kind of driver-extractors in power system device repair field, are applied in mobile equipment earthed system
Earthing pole, grounding rod rise pull out recycling.
Background technology
Earthing pole, grounding rod need to pull up when cannot meet installation provision requirement during the installation process does over again, and erecting bed is applied
Work is completed also to need to pull up earthing pole, grounding rod recycling when removing ground wire, general using manually pulling up, do over again or removal process in
It often pulls up difficult or even can not pull up because construction site soil is hard；Part auxiliary tool degree of balance difficulty is grasped in the prior art,
Road clearance is small, and stroke is inadequate, and it is not smooth to pull up process, influences engineering construction progress and working efficiency.
Invention content
The technical problem to be solved by the invention is to provide a kind of driver-extractor, can easily, quickly pull up earthing pole,
Grounding rod simultaneously can be used for lifting for some weights.
The driver-extractor of the present invention, includes pedestal, column guide rail is provided on pedestal, it is characterised in that：The column guide
It is provided with the lower support that can be slided up and down along column guide rail on rail and rises and pulls out trailing arm, lower support and rises and pulls out trailing arm and column guide rail
It is provided with one-way locking device and enables and lower support and serve and pull out trailing arm upward sliding and cannot under one-way locking device
It falls；For handle tool there are two hinge joint, the hinge joint positioned at front end pulls out the hinge that trailing arm is hinged, is located at after the hinge joint of front end with rising
Contact is hinged with joining beam upper end；Joining beam lower end and lower support are hinged；Handle downwardly and upwardly when two hinge joints alternately as
It supports and rises under the fulcrum drive of rotatable handle and pull out trailing arm alternately rising；
The one-way locking device includes the pin hole arranged from the bottom to top by column guide rail, lower support and rises and pulls out and set on trailing arm
It is equipped with the bolt of tail portion pocketed springs, in lower support and rises and pulls out bolt when bolt in trailing arm sliding process slides into pin hole position and exist
Pin hole is stretched under spring effect, bolt front end upper surface is guiding surface so that bolt pulls out trailing arm to moving up with lower support and rising
It can be exited from pin hole through guiding surface under guiding surface effect when dynamic；Described is pulled out trailing arm upper surface and has corrugation slot structure
It skids when preventing from lifting earthing pole；
The driver-extractor is provided with cam handle and reversing plate, and cam handle, which has been hinged on, to be pulled out on trailing arm, reversing plate installation
It is pulled out on the outside of trailing arm epimere, cam handle can be driven reversing plate edge to pull out trailing arm by cam surface and be moved up and down, lower support
With rise pull out on trailing arm bolt tail portion suit both ends of the spring by with longer section of stretching out fixed pin and bolt mounting bracket limit
There are two contra bevels to be matched with the fixed pin section of stretching out of bolt for position, reversing plate, and cam handle can push reversing plate to drive
Inclined-plane, which is lifted up, enables bolt to enter pin hole；It reversing plate and rises to pull out and is provided with resetting spring, cam handle between trailing arm
Reversing plate can be driven to move up simultaneously compression reseting spring energy storage, reversing plate can be in the case where resetting spring resets power drive downwards
It is mobile, coordinated with fixed pin section of stretching out by contra bevel when reversing plate moves down and pushes bolt to exit pin hole and lock so that
Bolt cannot enter pin hole when moving down；Cam handle be provided on cocked position on reversing plate acting surface it is mutually matched
Protrusion and groove；
The column guide rail top is provided with upper limit position block, and upper limit position block, which has limited, pulls out pan position in trailing arm maximum, it is ensured that
It does not depart from column guide rail.Besides it is used as the hand handle for guiding and supporting driver-extractor；
The handle is provided with clamp spring, can block column guide rail, handle when handle is rotated upwardly to vertical by clamp spring
It will not loosen and leave column guide rail whereabouts；
The fixed pin surface has annular knurl slot.
The driver-extractor of the present invention, by joining beam in lower support, rise to pull out and switch fulcrum between trailing arm, pushed away in turn by rotatable handle
Dynamic lower support rises and pulls out trailing arm and move up, and passes through cam handle and push reversing plate switching mechanism direction so that driver-extractor can
Reset cycle uses or safety storage；It is using lever jack principle that earthing pole is multiple toward subdivision from embedded sandstone soil
Section prying and pulling, column guide rail have several pin holes being evenly arranged, and are capable of providing sufficiently high earthing pole and pull out stroke, are applicable in any
The inserted mode of hard ground earthing pole, it can also be used to which some weights are lifted；Ensure earthing pole demolishing process smoothly, easily,
Fast, it ensures engineering construction progress, improves working efficiency.
Description of the drawings
Fig. 1 is planar structure front view of the embodiment of the present invention；
Fig. 2 is the partial cutaway view of Fig. 1；
Fig. 3 is working condition planar structure front view of the embodiment of the present invention；
Fig. 4 is B-B handles and the joining beam of Fig. 1, rises and pull out trailing arm hinge point sectional view；；
Fig. 5 is the C-C joining beams of Fig. 1 and lower support hinge point sectional view.
Specific implementation mode
As shown, a kind of driver-extractor, is fixedly mounted the column guide for being provided with several equally distributed pin holes on pedestal 1
Rail 2, pedestal 1, which can ensure that driver-extractor is stablized to place, to be prevented from being inserted into ground, can also be fixedly installed in equipment working face, weight support
The occasions such as place are lifted, pedestal 1 is used for the installation of column guide rail 2 and supports entire device and carry effect all when work
Power, 1 size of pedestal and structure do not influence driver-extractor and act the working space pulled out between object, while having enough mechanicalnesses
Energy；Be provided with the lower support 3 that can be slided up and down along column guide rail on column guide rail 2 and rise and pull out trailing arm 4, rise pull out trailing arm 4 can
The strut for holding earthing pole top is lifted upwards, handle 6 and joining beam 5 coordinate using lever jack principle agitate lower support 3 and
Rise and pull out trailing arm 4 respectively along 2 upward sliding of column guide rail, using lever jack principle by earthing pole from embedded sandstone soil
Repeatedly reciprocal segmentation prying and pulling, lower support 3 and rise and pull out trailing arm 4 and provide fulcrum upward sliding in turn mutually；If column guide rail 2 is provided with
Equally distributed pin hole is done, sufficiently high earthing pole is capable of providing and pulls out stroke, is suitable for any height or hard ground is grounded
The inserted mode of pole, column guide rail 2 use section steel manufacture, 2 height of column guide rail to adapt to pull out the length and support of earthing pole enough
The height of act.
It is provided with the lower support 3 that can be slided up and down along column guide rail on column guide rail 2 and rises and pulls out trailing arm 4,3 Hes of lower support
Rise pull out trailing arm 4 and column guide rail 2 be provided with one-way locking device enable lower support 3 and pull out 4 for upward sliding of trailing arm and
It cannot fall under one-way locking device effect；The tool of handle 6 there are two hinge joint, the hinge joint of front end with act hinged, position of pulling out trailing arm
Hinge joint and 5 upper end of joining beam after the hinge joint of front end is hinged；5 lower end of joining beam and lower support 3 are hinged；Handle 6 downwards and to
Two hinge joints, which support 3 and rise, when upper rotation under being driven alternately as the fulcrum that handle 6 rotates pulls out the alternately rising of trailing arm 4；One-way lock
It includes the pin hole arranged from the bottom to top by column guide rail 2 to determine device, it is lower support 3 and rise pull out be provided on trailing arm 4 tail portion set shoot
The bolt 10 of spring in lower support 3 and rises and pulls out bolt 10 when bolt 10 in 4 sliding process of trailing arm slides into pin hole position and make in spring
Stretch into pin hole under, 10 front end upper surface of bolt is guiding surface so that bolt 10 pulls out trailing arm 4 to moving up with lower support 3 and rising
It can be exited from pin hole through guiding surface under guiding surface effect when dynamic；Described is pulled out 4 for upper surface of trailing arm and has valley of corrugation knot
Structure skids when preventing from lifting earthing pole；Pin hole be it is lower support 3, rise pull out trailing arm 4 provide positioning, locking, it is lower support 3, rise pull out trailing arm 4
It prevents from lower support 3 by 10 structure of bolt insertion pin hole and rises to pull out 4 for upward sliding of trailing arm whereabouts in the process, lower support 3 rises and pulls out support
10 shape of bolt of arm 4 is cylindric, and the one end for being inserted into pin hole has upward inclined-plane, and 10 outer cover of bolt is equipped with reset bullet
Spring, bolt 10 is axial to be horizontally inserted into the pin hole of column guide rail, and the power of insertion comes from the reset being sleeved on outside bolt 10
Spring, resetting spring is by passing perpendicularly through the lateral straight pin of bolt 10 and lower support 3, rising and pull out the branch of installation bolt 10 on trailing arm 4
Frame limits to realize compression and release movement, so as to push bolt 10 to be inserted into pin hole；Handle 6 utilizes lever with the cooperation of joining beam 5
Jack principle agitate it is lower support and rise pull out trailing arm respectively along 2 upward sliding of column guide rail when, 10 inclined-plane of bolt is encountered on pin hole
Side stress along inclined-plane from exited in pin hole with it is lower support 3 and pull out 4 for upward sliding of trailing arm, resetting spring both ends are by 11 He of fixed pin
10 mounting bracket of bolt limits compressed energy-storage, and bolt 10 is with lower support 3 and can when rising and pulling out the supreme pin hole of 4 upward sliding of trailing arm
It is inserted into pin hole under the energy driving of resetting spring release.
6 lower end of handle respectively with joining beam 5, rise and pull out that trailing arm 4 is hinged, and 5 both ends of joining beam are hinged with lower support 3, handle 6 respectively,
Column guide rail 2 is in lower support 3 and acts part, joining beam 5,6 lower end of handle pulled out between 4 bolt 10 of trailing arm and is in joining beam 5 and rises
The part between 4 articulated shaft of trailing arm is pulled out, lower support 3, rises and pulls out trailing arm 4 and constitute link mechanism, by link mechanism in lower support
3, it rises and switches fulcrum between pulling out trailing arm 4, lower support 3 is pushed by the rotation of handle 6 in turn, rises to pull out trailing arm 4 and move up and lifts ground connection
Pole or weight rise and pull out 4 for upper surface of trailing arm and prevent from skidding when lifting earthing pole or weight with corrugation slot structure；Handle 6 is to realize
Mobile lower support 3 rises to pull out trailing arm 4 and rise and pulls out earthing pole or lift power augmentation and the transmission of weight, two clockwise by Ni ﹑
The reciprocal of direction is pulled, and process is pulled out to complete entirely to rise.
The driver-extractor of the present invention is additionally provided with cam handle 7 and reversing plate 8, and cam handle 7, which has been hinged on, to be pulled out on trailing arm 4,
Reversing plate 8, which has been installed on, to be pulled out on the outside of trailing arm 4 epimere, and cam handle 7 can drive reversing plate 8 to pull out trailing arm 4 along rising by cam surface
It moves up and down, it is lower to support 3 and act the both ends of the spring for 10 tail portion of the upper bolt suit for pulling out trailing arm 4 by the fixation with longer section of stretching out
There are two contra bevels to be matched with 11 section of stretching out of fixed pin for pin 11 and the limit of 10 mounting bracket of bolt, reversing plate 8；Cam handle 7
Can push reversing plate 8 that contra bevel is driven to be lifted up enables bolt 10 to enter pin hole；Reversing plate 8 with rise pull out trailing arm 4 it
Between be provided with resetting spring, cam handle 7 can drive reversing plate 8 to move up and compression reseting spring energy storage, 8 energy of reversing plate
It is enough to be moved down in the case where resetting spring resets power drive, contra bevel and lower support 3 and pull out trailing arm 4 when reversing plate 8 moves down
11 section of stretching out of fixed pin cooperation push bolt 10 exit pin hole and lock so that bolt 10 cannot enter pin hole when moving down；
Mutually matched protrusion and groove are provided on cam handle 7 and 8 acting surface of reversing plate on cocked position；Cam handle 7 can
It is pulled counterclockwise with both direction clockwise, for controlling 8 operative orientation of reversing plate, pulls out work to rise and terminate so that commutating
Plate 8, lower support 3, rises and pulls out trailing arm 4, handle 6, joining beam 5 while being snapped down to 2 bottom of column guide rail and turn sequence to next cam handle 7
Operating position or storage storage.
In 11 surface rolling annular knurl slot of fixed pin, and fixed pin 11 and 10 mounting hole of bolt are interference fit so that fixed
Pin 11 not will produce displacement loosening in 10 mounting hole of bolt, and reversing plate contra bevel coordinates with fixed pin 11 pushes bolt 10 to exit
It will not skid when pin hole.
2 top of column guide rail is provided with upper limit position block 9, and upper limit position block 9, which has limited, pulls out the maximum upper pan position of trailing arm 4, it is ensured that
Rise and pull out trailing arm 4 and do not skid off disengaging column guide rail, additionally it is possible to as carry, the handle of mobile driver-extractor；Handle 6 is provided with clamp spring,
Handle 6 can block column guide rail 2 by clamp spring when being rotated upwardly to vertical, handle 6, which will not loosen, to be left under column guide rail 2
It falls so that driver-extractor being capable of reset cycle use or safety storage.
Driver-extractor off working state, that is, free state of the present invention supports 3 and rises and pulls out 4 for and its connector of trailing arm and all locate at present
It is close to the position of pedestal 1 in 2 bottom of column guide rail, handle 6 closes up with column guide rail 2 and blocked by the clamp spring on handle 6 vertical
The guarantee of column guide rail 2 will not detach.When work, arranged orthogonal driver-extractor is rotated in the counterclockwise direction cam handle 7 and rotates up,
Reversing plate 8 is pushed to move up while compressing reversing plate internal reset spring, until the semi-circular projection on reversing plate 8 is caught in cam hand
In the semicircle groove of handle, the ramp structure on reversing plate 8 just moves up revocation locking effect at this time, and lower support 3 and rising is pulled out on trailing arm 4
Bolt 10 expose and be inserted into the pin hole of column guide rail 2, lower support 3 and rise and pull out trailing arm 4 and position motionless, rotate clockwise handle
6, it is downward by link mechanism transmitting forces, because two bolts, 10 times peripheries are straight cylindrical surface, by downward active force
When it can not exit pin hole, then lower support 3 can not move down, and can only be to pull out trailing arm 4 to move up under the driving of reaction force；Work as hand
6 stroke of handle terminates, and rises in the pin hole for pulling out 4 for bolt 10 of trailing arm insertion column guide rail 2, then stir handle 6 counterclockwise, by link mechanism
Transmitting forces are upward, rise and pull out that trailing arm 4 is locked, and link mechanism pulls lower support 3 to move up, until 6 stroke of handle terminates, lower support
3 bolts 10 are inserted into positioning in the pin hole of column guide rail 2, act to pull out trailing arm 4 and lift earthing pole having moved up a pitch from a job follows
Ring terminates, into subsequent cycle working condition；Move in circles by the rotation of handle 6 push in turn lower support 3, rise pull out trailing arm 4 to
Upper movement, until earthing pole is extracted ground or weight is recommended predetermined altitude；Rise pull out trailing arm 4 and it is lower support 3 rise to it is vertical
Behind 2 top of column guide rail, earthing pole or weight are removed, handle 6 is held, keeps driver-extractor steadily to stand on ground, then clockwise
Lower cam handle 7 is pulled, the ramp structure of slide downward under the action of resetting spring tension of reversing plate 8, reversing plate 8 pushes two to insert
Pin 10 is extracted simultaneously from column pin hole, rise pull out trailing arm 4 and it is lower support 3 and joining beam 5, handle 6 combination can directly be snapped down to it is vertical
2 bottom of column guide rail, into acting the original state for pulling out work or storage next time.
The driver-extractor of the present invention, by joining beam in lower support, rise to pull out and switch fulcrum between trailing arm, pushed away in turn by rotatable handle
Dynamic lower support rises and pulls out trailing arm and move up, and passes through cam handle and push reversing plate switching mechanism direction so that driver-extractor can
Reset cycle uses or safety storage；It is using lever jack principle that earthing pole is multiple toward subdivision from embedded sandstone soil
Section prying and pulling, column guide rail have several pin holes being evenly arranged, and are capable of providing sufficiently high earthing pole and pull out stroke, are applicable in any
The inserted mode of hard ground earthing pole, it can also be used to which some weights are lifted；Ensure earthing pole demolishing process smoothly, easily,
Fast, it ensures engineering construction progress, improves working efficiency.
Claims (4)
1. a kind of driver-extractor includes pedestal（1）, pedestal（1）On be provided with column guide rail（2）, it is characterised in that：The column
Guide rail（2）On be provided with can be along column guide rail（2）The lower support slided up and down（3）Trailing arm is pulled out with rising（4）, lower support（3）With
It rises and pulls out trailing arm（4）With column guide rail（2）It is provided under one-way locking device makes and supports（3）Trailing arm is pulled out with rising（4）It can be upward
It slides and cannot fall under one-way locking device effect；Handle（6）For tool there are two hinge joint, the hinge joint of front end pulls out support with rising
Arm（4）Hinge joint and joining beam hinged, be located at after the hinge joint of front end（5）Upper end is hinged；Joining beam（5）Lower end and lower support（3）
It is hinged；Handle（6）Two hinge joints are alternately as handle when downwardly and upwardly（6）The fulcrum of rotation, which has driven, pulls out trailing arm（4）
With lower support（3）Alternately rise；
Described is pulled out trailing arm（4）It skids when there is corrugation slot structure to prevent from lifting earthing pole upper surface；
The column guide rail（2）Top is provided with upper limit position block（9）；
The handle（6）It is provided with clamp spring, handle（6）Clamp spring can block column guide rail when being rotated upwardly to vertical（2）.
2. driver-extractor according to claim 1, it is characterised in that：The one-way locking device includes by column guide rail（2）
The pin hole arranged from the bottom to top, lower support（3）Trailing arm is pulled out with rising（4）On be provided with the bolts of tail portion pocketed springs（10）, under
Support（3）Trailing arm is pulled out with rising（4）Bolt in sliding process（10）Bolt when sliding into pin hole position（10）It can be acted in spring
Under stretch into pin hole, bolt（10）Front end upper surface is guiding surface so that bolt（10）With lower support（3）Trailing arm is pulled out with rising（4）
It can be exited from pin hole through guiding surface under guiding surface effect when moving up.
3. driver-extractor according to claim 2, it is characterised in that：It is provided with cam handle（7）With reversing plate（8）, cam
Handle（7）It has been hinged on and has pulled out trailing arm（4）On, reversing plate（8）It has been installed on and has pulled out trailing arm（4）On the outside of epimere, cam handle（7）It can
Reversing plate is driven by cam surface（8）Trailing arm is pulled out along rising（4）It moves up and down, lower support（3）It is pulled out on trailing arm with rising（4）Bolt
（10）The both ends of the spring of tail portion suit is by the fixed pin with longer section of stretching out（11）And bolt（10）Mounting bracket limits, commutation
Plate（8）With two contra bevels and fixed pin（11）Section of stretching out matches；Cam handle（7）Reversing plate can be pushed（8）Drive is fallen
Inclined-plane is lifted up so that bolt（10）Pin hole can be entered；Reversing plate（8）Trailing arm is pulled out with rising（4）Between be provided with reset bullet
Spring, cam handle（7）Reversing plate can be driven（8）Move up simultaneously compression reseting spring energy storage, reversing plate（8）It can reset
It is moved down under spring reset power drive, reversing plate（8）Contra bevel and lower support when moving down（3）Trailing arm is pulled out with rising（4）'s
Fixed pin（11）Section of stretching out cooperation pushes bolt（10）It exits pin hole and locks so that bolt（10）Pin cannot be entered when moving down
Hole；Cam handle（7）With reversing plate（8）Mutually matched protrusion and groove are provided on acting surface on cocked position.
4. driver-extractor according to claim 3, it is characterised in that：The fixed pin（11）Surface has annular knurl slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639775.2A CN106392985B (en) | 2016-08-04 | 2016-08-04 | Driver-extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610639775.2A CN106392985B (en) | 2016-08-04 | 2016-08-04 | Driver-extractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106392985A CN106392985A (en) | 2017-02-15 |
| CN106392985B true CN106392985B (en) | 2018-09-25 |
Family
ID=58004920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610639775.2A Active CN106392985B (en) | 2016-08-04 | 2016-08-04 | Driver-extractor |
Country Status (1)
| Country | Link |
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| CN (1) | CN106392985B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108274724B (en) * | 2018-01-26 | 2021-04-27 | 袁炊 | Glass steel pipeline processing equipment |
| CN108284863B (en) * | 2018-01-26 | 2021-03-26 | 袁炊 | Feeding device for glass fiber reinforced plastic pipeline production |
| CN112123807A (en) * | 2018-01-26 | 2020-12-25 | 袁炊 | Equipment based on automatic processing of glass steel pipeline |
| CN108217311B (en) * | 2018-01-26 | 2020-12-22 | 靖江市海鸿塑胶科技有限公司 | Glass steel pipeline processing system |
| CN109092104A (en) * | 2018-07-04 | 2018-12-28 | 金华市高就机电设备有限公司 | A kind of folding blender of handle |
| CN108773789B (en) * | 2018-07-19 | 2023-11-17 | 铁岭兵山煤业设备仪器制造有限公司 | Manual lifting platform and cable support |
| CN108981669B (en) * | 2018-08-02 | 2020-07-21 | 浙江树人学院 | Three-dimensional scanning human motion capture device |
| CN110253491B (en) * | 2019-06-28 | 2024-06-25 | 三一重机有限公司 | Pin pressing device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2157174Y (en) * | 1993-04-08 | 1994-02-23 | 邵孝淼 | Jack |
| CN2187162Y (en) * | 1993-10-18 | 1995-01-11 | 浙江师范大学双销千斤顶厂 | Quick-climbing jack |
| CN2191855Y (en) * | 1994-01-03 | 1995-03-15 | 浙江师范大学双销千斤顶厂 | Special purpose jack for small size tractor |
| EP0950633A3 (en) * | 1998-04-15 | 2001-11-14 | Northman Holdings Inc. | Safety locking mechanism for a mechanical lifting jack |
| CN203845753U (en) * | 2014-04-28 | 2014-09-24 | 洪维忆 | Jack supporting frame |
| CN206123540U (en) * | 2016-08-04 | 2017-04-26 | 江苏绿扬电子仪器集团有限公司 | Extractor |
-
2016
- 2016-08-04 CN CN201610639775.2A patent/CN106392985B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106392985A (en) | 2017-02-15 |
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Effective date of registration: 20180813 Address after: 212200 windsurfing Plaza, three Mau Town, Yangzhong City, Zhenjiang, Jiangsu Applicant after: Yangzhong Yuandong bearing special whetstone factory Address before: 212200 88 Lu Yang Road, Yangzhong, Jiangsu Applicant before: Jiangsu Lvyang Electronic Instrument Group Co., Ltd. |
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