CN109987537A - A kind of scissor-like jack and its application method of safety and firmness - Google Patents
A kind of scissor-like jack and its application method of safety and firmness Download PDFInfo
- Publication number
- CN109987537A CN109987537A CN201910224854.0A CN201910224854A CN109987537A CN 109987537 A CN109987537 A CN 109987537A CN 201910224854 A CN201910224854 A CN 201910224854A CN 109987537 A CN109987537 A CN 109987537A
- Authority
- CN
- China
- Prior art keywords
- jack
- link block
- support bar
- screw rod
- scissor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/12—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers
Abstract
A kind of scissor-like jack and its application method of safety and firmness.That the invention discloses a kind of structures is simple, stability is good, highly-safe and scissor-like jack with long service life, belongs to technical field of jacks；Including pedestal, top plate, support component, rocking handle and threaded screw rod；The support component includes left upper support bar, lower-left support rod, upper right support rod, bottom right support rod, left link block, right link block；Each upper support bar first end is connect with top panel turns, and the link block rotation connection of second end and corresponding orientation, each lower support bar first end and pedestal are rotatablely connected, and the link block of second end and corresponding orientation is rotatablely connected；The right link block is equipped with perforative threaded hole, and the threaded screw rod first end is fixedly connected with left link block, and second end passes through threaded hole and stretches out；The threaded screw rod second end is equipped with the rod aperture cooperated with rocking handle；A right link block exposed face parallel with threaded screw rod is embedded fixed equipped with permanent magnetic chuck.
Description
Technical field
That the present invention relates to technical field of jacks more particularly to a kind of structure is simple, stability is good, highly-safe and use
The scissor-like jack of service life length.
Background technique
With the gradually promotion of people's living standard, the universal use of automobile, people not only want the use function of automobile
Ask very high, also higher and higher to the performance requirement of the auxiliary tool with vehicle indispensability accordingly, wherein jack is as vehicle failure
The indispensable tool of maintenance or part replacement increasingly becomes one of the theme of people's research.
Existing jack is roughly divided into rack-jack, four class of screw jack, hydraulic jack and scissor-like jack.
Wherein scissor-like jack is a kind of mechanical jack, mainly passes through reciprocal swinging handle, reduces support rod by screw thread
Between screw rod distance, and then top is made to move up and down to realize the jack-up of weight and fall, since its structure is simple, operation makes
With being one of most common jack in life the advantages that convenience.
In the work of above-mentioned scissor-like jack, the screw thread that the gravity of weight greatly passes through screw rod is born,
The screw thread of screw rod bear for a long time axial compressive force it is excessive in the case where, can gradually damage, safety is difficult to ensure；In addition existing
The one group of scissor strut that passes through of power transmits between its top of scissor-like jack and pedestal, i.e., stress is linear stress,
When its placement position is bad or two sides unbalance stress deviation is excessive, it is easy to which the accident that jack rollover occurs causes personnel
Injures and deaths or component damage.
Summary of the invention
For the drawbacks described above for overcoming the prior art, the present invention is intended to provide a kind of structure is simple, stability is good, highly-safe
And scissor-like jack with long service life.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of scissor-like jack of safety and firmness, including pedestal, top plate, support component, rocking handle and threaded screw rod；The branch
Support component includes left upper support bar, lower-left support rod, upper right support rod, bottom right support rod, left link block, right link block；It is described
Each upper support bar first end is connect with top panel turns, the rotation connection of the link block of second end and corresponding orientation, each lower support bar the
One end and pedestal are rotatablely connected, and the link block of second end and corresponding orientation is rotatablely connected；The right link block is equipped with perforative spiral shell
Pit, the threaded screw rod first end are fixedly connected with left link block, and second end passes through threaded hole and stretches out；The threaded screw rod
Second end is equipped with the rod aperture cooperated with rocking handle；The embedded fixed dress of a right link block exposed face parallel with threaded screw rod
There is permanent magnetic chuck.
Preferred: the permanent magnetic chuck is embedded in the lower surface of the right link block.
Preferred: the pedestal is equipped with the groove and slot cover for placing rocking handle.
Preferred: above-mentioned scissor-like jack further includes firm component, and the firm component includes preceding upper support bar, front lower branch
Strut, rami posterior inferior strut, preceding connection bolt, connects bolt at rami posterior superior strut afterwards；The screw rod bottom of the front and back connection bolt is
Partes glabra；The preceding upper support bar, rami posterior superior strut first end are connect with top panel turns, and second end is rotatably connected on corresponding connection
The partes glabra of bolt；The preceding lower support bar, rami posterior inferior strut first end and pedestal are rotatablely connected, and second end is rotatably connected on phase
The partes glabra of bolt should be connected.
Preferred: the preceding upper support bar is superimposed at binding face with preceding lower support bar, rami posterior superior strut with rami posterior inferior strut
Equipped with friction plate.
Preferred: the friction plate is aramid fiber friction plate.
Preferred: each support rod size shape is consistent, and the top plate and pedestal are equipped with and are rotatablely connected with support rod
Hemispherical interconnecting piece, the hemispherical interconnecting piece is equipped with the sector notch of each support rod rotation, and upper and lower sector notch
Alignment, it is vertical with the adjacent sector notch on component, so that plane composed by the support rod of front and back and left and right sidesing post formed
Plane is in 90 ° of angles.
In addition, the present invention also provides a kind of above-mentioned application methods of the scissor-like jack of safety and firmness, including walk as follows
It is rapid:
S1., the jack is placed in the corresponding position for needing to jack up object, the slot cover on pedestal is opened, is taken out from groove
Rocking handle；
S2. rocking handle is inserted into rod aperture, rotation crank, under the screw thread of threaded screw rod and threaded hole mating reaction, left and right
Support rod is close to each other, and top plate is located remotely from each other with pedestal, until jacking up weight；
S3. after weight is jacked up to proper height, stop operating rocking handle, rotates permanent magnetic chuck, under the magnetic force spiral shell
Line screw rod is tightly adsorbed on right link block lower part, reaches the stable state of threaded screw rod；
S4. while above-mentioned jack-up weight, front and back support rod is also promoted to corresponding position therewith, tightens front and back and connects spiral shell
Bolt reaches preferably firm jacking state；
S5. after work, loosen connection bolt, rotation permanent magnetic chuck to magnetic force off-state, and rotate backward and shake
Handle, until rocking handle is put back to groove, covers slot cover, work terminates after jack returns to original state.
Compared with the prior art, the invention has the following advantages:
1. fixing threaded screw rod and right link block magnetic force by permanent magnetic chuck, threaded screw rod is avoided to act in long-term weight
The further micro- deformation of lower screw thread, prevents the damage of threaded screw rod screw thread, avoids the peace that may cause because threaded screw rod damages
Full accident improves the service life of threaded screw rod, and then improves the service life of jack.
2. tightening connection bolt by adding firm component after jacking up weight, sharing the vertical of weight
On firm component and support component, in jack two sides when unbalance stress, side force is shared by firm component, at this time jack
Whole stress be in " X " font, " one " brief note shape stress compared with prior art, stability greatly improves, can effectively avoid because
Rollover event caused by unbalance stress greatly improves the safety of jack use process.
3. in firm component, the frictional force before or after it between upper lower support bar is improved by increasing friction plate, in turn
The fastening effect of connection bolt is promoted, the stability of firm component is promoted.
4. by by the unified setting of the size shape of support rod each in firm component and support component, and in vertical direction
Adjacent supports bar is vertically arranged, and makes being more uniformly stressed for entire jack, further increases the stability of structure, and in this base
It is improved service life on plinth.
5. scissor-like jack rocking handle of the present invention can be placed in base recess, friction plate can be by connection bolt at any time
Replacement, overall structure is simple, good integrity, easy to operate.
Detailed description of the invention
Fig. 1 is the three dimensional structure diagram of embodiment 1；
Fig. 2 is enlarged section structural schematic diagram at A；
Fig. 3 is the three dimensional structure diagram of embodiment 2；
Fig. 4 is the Structure Comparison schematic diagram of jack under overlooking state.
In figure: 1, pedestal；11, groove；12, slot cover；2, top plate；3, rocking handle；4, threaded screw rod；41, rod aperture；5, support group
Part；51, left upper support bar；52, lower-left support rod；53, left link block；54, upper right support rod；55, bottom right support rod；56, right
Link block；561, threaded hole；6, permanent magnetic chuck；7, component is consolidated；71, preceding upper support bar；72, preceding lower support bar；73, preceding connection
Bolt；74, rami posterior superior strut；75, rami posterior inferior strut；76, bolt is connected afterwards；8, friction plate；9, hemispherical interconnecting piece；91, it fans
V notch v.
Specific embodiment
Technical solution provided by the invention is absolutely proved now in conjunction with specific embodiment, so that those of ordinary skill in the art
It can fully understand and implement.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of scissor-like jack of safety and firmness, including pedestal 1, top plate 2, support component 5, rocking handle
3 and threaded screw rod 4；The support component 5 includes left upper support bar 51, lower-left support rod 52, upper right support rod 54, bottom right support
Bar 55, left link block 53, right link block 56；Each upper support bar first end and top plate 2 are rotatablely connected, second end and respective party
The link block rotation connection of position, each lower support bar first end and pedestal 1 are rotatablely connected, and the link block of second end and corresponding orientation turns
Dynamic connection；The right link block 56 is equipped with perforative threaded hole 561, and 4 first end of threaded screw rod and left link block 53 are fixed
Connection, second end pass through threaded hole 561 and stretch out；4 second end of threaded screw rod is equipped with the rod aperture 41 cooperated with rocking handle 3；
The right link block 56 exposed face parallel with threaded screw rod 4 is embedded fixed equipped with permanent magnetic chuck 6.For convenience of installation, originally
Embodiment has added connecting plate on pedestal 1 and top plate 2, to connect each support rod.
Pedestal 1, top plate 2 and support component 5 of the invention constitutes two scissors mouth relative shapes, passes through rotation middle part
Threaded screw rod 4, relatively move threaded screw rod 4 with threaded hole 561, the two sides Lai Shixian (left and right) support rod it is close
Or it is separate, and then realize being raised and lowered for top plate 2.In actually jacking work, when suitable position is arrived in jacking, permanent magnetism is rotated
Sucker 6 opens magnetic-adsorption, and making threaded screw rod 4 and right 56 adsorbed close of link block one, (permanent magnetic chuck 6 mainly passes through rotation
Movable part switches whole magnetic force channel direction, and then realizes the absorption or disconnection to external component, in the tooling of the prior art
It is mature technology in fixture, does not do excessive statement herein), pass through power friction brought by magnetic-adsorption and magnetic-adsorption
The axial compressive force of the receiving of threaded screw rod 4 can be effectively relieved, improve the service life of overall stability and threaded screw rod 4, prevent spiral shell
The thread damage that line screw rod 4 may cause because bearing axial compressive force for a long time avoids the safety accident that may occur.It is very heavy for simplification
The permanent magnetic chuck 6 is embedded in the lower surface of the right link block 56 by the overall structure and appearance on top, and in the base
Seat 1 is equipped with the groove 11 and slot cover 12 for placing rocking handle 3.
Embodiment 2
As shown in Figure 3: the present embodiment has done further in-depth on the basis of embodiment 1, mainly improves and is: is above-mentioned
Scissor-like jack further includes firm component 7, and the firm component 7 includes preceding upper support bar 71, preceding lower support bar 72, rami posterior superior support
Bar 74, rami posterior inferior strut 75, preceding connection bolt 73, rear connection bolt 76；The screw rod bottom of the front and back connection bolt 73,76 is
Partes glabra；The preceding upper support bar 71,74 first end of rami posterior superior strut and top plate 2 are rotatablely connected, and second end is rotatably connected on phase
The partes glabra of bolt should be connected；The preceding lower support bar 72,75 first end of rami posterior inferior strut and pedestal 1 are rotatablely connected, second end
It is rotatably connected on the partes glabra of corresponding connection bolt.The jack of the present embodiment, after jacking up weight to suitable position, by front and back
Connection bolt 73,76 is tightened, and in jack use process, firm component 7 has been shared jack with support component 5 jointly and broken
Weight weight before bad, and the linear type of its vertical applied force from the prior art becomes X-shaped, i.e. force-bearing situation are from bar shaped
It is transformed into face shape, substantially increases the bearing capacity before jack is destroyed, improves the safety used, and face shape stress can be effective
Prevent jack from putting improper or unbalance stress and may cause " rollover " accident.
Above-mentioned firm component 7, bearing capacity mostly come from the frictional force for connecting bolt compresses support rod and generating, in order to
Reach ideal effect, the preceding upper support bar 71 is folded with preceding lower support bar 72, rami posterior superior strut 74 and rami posterior inferior strut 75
Add and be equipped with friction plate 8 at binding face, the further friction plate 8 is aramid fiber friction plate.Need additional description is this
Each support rod in embodiment is sequence fitting superposition at rotation connection, mainly to simplify structure and cost, only one
A binding face can will be arranged to packaging type pivot joint, branch up and down at this time when conditions permit at upper lower support bar rotation
There are two binding faces for strut, and friction plate is mounted on two binding faces can reach more preferably firm effect.
Preferred: each support rod size shape is consistent, and the top plate 2 and pedestal 1 are equipped with to rotate with support rod and connect
The hemispherical interconnecting piece 9 connect, the hemispherical interconnecting piece 9 are equipped with the sector notch 91 of each support rod rotation, and upper lower fan
V notch v 91 is aligned, vertical with the adjacent sector notch 91 on component, so that plane composed by the support rod of front and back and left and right branch
The plane of strut composition is in 90 ° of angles.By above-mentioned setting, the vertical applied force of jack is set to become " ten " font from X-shaped, respectively
Support rod is substantially symmetrical about its central axis with hemispherical interconnecting piece 9, and more preferably, the overall structure of jack is more preferably stable for face stressed effect,
Anti- " rollover " effect is more preferable, can clearly be seen and jack knot in the prior art by the plan structure contrast schematic diagram of attached drawing 4
Structure stress comparison (the former is bar shaped stress, and the latter is " ten " literal stress).
Jack described in the present embodiment can greatly improve the whole uniform force of jack compared with prior art, reduce spiral shell
The loss of line screw rod 4 improves safety and service life, and overall structure is simple, and easy to operate, rocking handle 3 can be directly placed into base
In the groove 11 of seat 1, and 8 need of consumables friction plate can be replaced easily by connecting bolt, be suitble to promote the use of.
The present embodiment additionally provides a kind of application method of the scissor-like jack of above-mentioned safety and firmness, including walks as follows
It is rapid:
S1., the jack is placed in the corresponding position for needing to jack up object, the slot cover 12 on pedestal 1 is opened, from groove 11
Middle taking-up rocking handle 3；
S2. rocking handle 3 is inserted into rod aperture 41, rotation crank 3, in 561 mating reaction of screw thread and threaded hole of threaded screw rod 4
Under, left and right sidesing post is close to each other, and top plate 2 is located remotely from each other with pedestal 1, until jacking up weight；
S3. after weight is jacked up to proper height, stop operating rocking handle 3, rotates permanent magnetic chuck 6, under the magnetic force
Threaded screw rod 4 is tightly adsorbed on right 56 lower part of link block, reaches the stable state of threaded screw rod 4；
S4. while above-mentioned jack-up weight, front and back support rod is also promoted to corresponding position therewith, tightens front and back and connects spiral shell
Bolt 73,76 reaches preferably firm jacking state；
S5. after work, connection bolt 73,76 before and after loosening, rotation permanent magnetic chuck 6 to magnetic force off-state, and
Rocking handle 3 is rotated backward, until rocking handle 3 is put back to groove 11, covers slot cover 12, work terminates after jack returns to original state.
Above-described embodiment is only the preferred embodiment of the present invention, the limitation in any form not made to the present invention.
Anyone skilled in the art, when not departing from the technology of the present invention principle and aspects, all using above
Disclosed method makes many possible changes and modifications to technical solution of the present invention, or is revised as the equivalent reality of equivalent variations
Apply example.Therefore, all without departing from the principle of the present invention or scheme, according to the technical essence of the invention to technology disclosed by the invention
Any combination that feature is made, modifications or substitutions should belong to the protection scope of technical solution of the present invention.
Claims (8)
1. a kind of scissor-like jack of safety and firmness, which is characterized in that including pedestal (1), top plate (2), support component (5), shake
Handle (3) and threaded screw rod (4)；The support component (5) includes left upper support bar (51), lower-left support rod (52), upper right support
Bar (54), bottom right support rod (55), left link block (53), right link block (56)；Each upper support bar first end and top plate (2)
The link block of rotation connection, second end and corresponding orientation is rotatablely connected, and each lower support bar first end and pedestal (1) are rotatablely connected,
The rotation connection of the link block of second end and corresponding orientation；The right link block (56) is equipped with perforative threaded hole (561), the spiral shell
Line screw rod (4) first end is fixedly connected with left link block (53), and second end passes through threaded hole (561) and stretches out；The screw thread silk
Bar (4) second end is equipped with the rod aperture (41) cooperated with rocking handle (3)；The right link block (56) is parallel with threaded screw rod (4)
One exposed face is embedded fixed equipped with permanent magnetic chuck (6).
2. a kind of scissor-like jack of safety and firmness as described in claim 1, which is characterized in that in the permanent magnetic chuck (6)
Embedded in the lower surface of the right link block (56).
3. a kind of scissor-like jack of safety and firmness as described in claim 1, which is characterized in that the pedestal (1) is equipped with
Place the groove (11) and slot cover (12) of rocking handle (3).
4. a kind of scissor-like jack of safety and firmness as claimed in claim 1 or 2, which is characterized in that further include firm component
(7), the firm component (7) includes preceding upper support bar (71), preceding lower support bar (72), rami posterior superior strut (74), rami posterior inferior support
Bar (75), connects bolt (76) afterwards at preceding connection bolt (73)；The screw rod bottom of the front and back connection bolt is partes glabra；It is described
Preceding upper support bar (71), rami posterior superior strut (74) first end and top plate (2) are rotatablely connected, and second end is rotatably connected on corresponding connection
The partes glabra of bolt；The preceding lower support bar (72), rami posterior inferior strut (75) first end and pedestal (1) are rotatablely connected, second end
It is rotatably connected on the partes glabra of corresponding connection bolt.
5. a kind of scissor-like jack of safety and firmness as claimed in claim 4, which is characterized in that the preceding upper support bar (71)
It is superimposed with preceding lower support bar (72), rami posterior superior strut (74) with rami posterior inferior strut (75) at binding face and is equipped with friction plate (8).
6. a kind of scissor-like jack of safety and firmness as claimed in claim 5, which is characterized in that the friction plate (8) is virtue
Synthetic fibre fibre frictoin piece.
7. a kind of scissor-like jack of safety and firmness as claimed in claim 4, which is characterized in that each support rod size shape
Shape is consistent, and the top plate (2) and pedestal (1) are equipped with the hemispherical interconnecting piece (9) being rotatablely connected with support rod, the hemispherical
Interconnecting piece (9) is equipped with the sector notch (91) of each support rod rotation, and sector notch (91) alignment up and down, on component
Adjacent sector notch (91) vertically, is pressed from both sides so that the plane that plane composed by the support rod of front and back and left and right sidesing post form is in 90 °
Angle.
8. a kind of application method of the scissor-like jack of safety and firmness as claimed in claim 7, which is characterized in that including as follows
Step:
S1., the jack is placed in the corresponding position for needing to jack up object, the slot cover (12) on pedestal (1) is opened, from groove
(11) rocking handle (3) are taken out in；
S2. rocking handle (3) are inserted into rod aperture (41), rotation crank (3) is matched in the screw thread and threaded hole (561) of threaded screw rod (4)
Under cooperation is used, left and right sidesing post is close to each other, and top plate (2) is located remotely from each other with pedestal (1), until jacking up weight；
S3. after weight is jacked up to proper height, the rocking handle that stops operating (3) is rotated permanent magnetic chuck (6), under the magnetic force
Threaded screw rod (4) is tightly adsorbed on right link block (56) lower part, reaches the stable state of threaded screw rod (4)；
S4. while above-mentioned jack-up weight, front and back support rod is also promoted to corresponding position therewith, tightens front and back and connects bolt
(73,76) reach preferably firm jacking state；
S5. after work, loosen front and back and connect bolt (73,76), rotation permanent magnetic chuck (6) to magnetic force off-state, and
Rocking handle (3) are rotated backward, until rocking handle (3) is put back into groove (11), covers slot cover (12) after jack returns to original state,
Work terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224854.0A CN109987537A (en) | 2019-03-24 | 2019-03-24 | A kind of scissor-like jack and its application method of safety and firmness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224854.0A CN109987537A (en) | 2019-03-24 | 2019-03-24 | A kind of scissor-like jack and its application method of safety and firmness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109987537A true CN109987537A (en) | 2019-07-09 |
Family
ID=67130967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910224854.0A Pending CN109987537A (en) | 2019-03-24 | 2019-03-24 | A kind of scissor-like jack and its application method of safety and firmness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109987537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261917A (en) * | 2021-12-01 | 2022-04-01 | 华北理工大学 | Mechanical jack |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049222U (en) * | 1989-05-27 | 1989-12-13 | 甘肃工业大学 | Automatic lock device for hydraulic shear's fork type elevatingtable |
| CN1117940A (en) * | 1994-05-10 | 1996-03-06 | 理研化机工业株式会社 | Jack |
| CN1963962A (en) * | 2001-08-24 | 2007-05-16 | 澳大利亚儿童玩具控股有限公司 | Switchable magnetic device |
| CN200982464Y (en) * | 2006-12-01 | 2007-11-28 | 天津奥意玛机电技术有限公司 | Permanent-magnet antitheft locking device |
| CN102405502A (en) * | 2009-03-19 | 2012-04-04 | 罗伯特·博世有限公司 | Magnetic locking system |
| CN204454413U (en) * | 2015-01-23 | 2015-07-08 | 李志宇 | Jack |
| CN206608284U (en) * | 2017-03-17 | 2017-11-03 | 内蒙古机电职业技术学院 | The wind wheel locking device of wind-driven generator |
| CN108408630A (en) * | 2018-06-09 | 2018-08-17 | 黄河科技学院 | Automobile specified assembles jack |
-
2019
- 2019-03-24 CN CN201910224854.0A patent/CN109987537A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2049222U (en) * | 1989-05-27 | 1989-12-13 | 甘肃工业大学 | Automatic lock device for hydraulic shear's fork type elevatingtable |
| CN1117940A (en) * | 1994-05-10 | 1996-03-06 | 理研化机工业株式会社 | Jack |
| CN1963962A (en) * | 2001-08-24 | 2007-05-16 | 澳大利亚儿童玩具控股有限公司 | Switchable magnetic device |
| CN200982464Y (en) * | 2006-12-01 | 2007-11-28 | 天津奥意玛机电技术有限公司 | Permanent-magnet antitheft locking device |
| CN102405502A (en) * | 2009-03-19 | 2012-04-04 | 罗伯特·博世有限公司 | Magnetic locking system |
| CN204454413U (en) * | 2015-01-23 | 2015-07-08 | 李志宇 | Jack |
| CN206608284U (en) * | 2017-03-17 | 2017-11-03 | 内蒙古机电职业技术学院 | The wind wheel locking device of wind-driven generator |
| CN108408630A (en) * | 2018-06-09 | 2018-08-17 | 黄河科技学院 | Automobile specified assembles jack |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261917A (en) * | 2021-12-01 | 2022-04-01 | 华北理工大学 | Mechanical jack |
| CN114261917B (en) * | 2021-12-01 | 2023-08-22 | 华北理工大学 | Mechanical jack |
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Application publication date: 20190709 |