CN108383025A - Laborsaving convenient scissors screw jack - Google Patents
Laborsaving convenient scissors screw jack Download PDFInfo
- Publication number
- CN108383025A CN108383025A CN201810400115.8A CN201810400115A CN108383025A CN 108383025 A CN108383025 A CN 108383025A CN 201810400115 A CN201810400115 A CN 201810400115A CN 108383025 A CN108383025 A CN 108383025A
- Authority
- CN
- China
- Prior art keywords
- hole
- bracket
- lower bracket
- pedestal
- laborsaving
- 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
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000005242 forging Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 230000003137 locomotive effect Effects 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 12
- 241000469816 Varus Species 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 235000019506 cigar Nutrition 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a kind of laborsaving convenient scissors screw jack, include the top of the pedestal of channel steel one forging molding, U-shaped part forging molding, and the pedestal is designed with symmetrical equidistant through-hole with top, it is characterised in that：Left and right lower bracket is hinged on the pedestal, left and right lower bracket lower end is respectively equipped with intermeshing positive and negative tooth, the top lower hinge has left and right upper bracket, left and right upper bracket upper end is respectively equipped with intermeshing positive and negative tooth, the left lower bracket upper end is hingedly connected to the both ends of nut with upper left pedestal lower end, right lower bracket upper end is hingedly connected to the both ends of support shaft with right upper bracket lower end, the nut is radially provided with tapped through hole, support shaft is radially provided with support shaft through-hole, and support shaft both sides connect work-saving device.The present invention realizes that behaviour reduces operating force purpose by gear reduction, the tools such as charge drill and pneumatic impact spanner are coordinated to realize that fast lifting effect, laborsaving operation handle end can install high-speed electric expreess locomotive connection cigar lighter line and realize automatic lifting purpose by laborsaving operation handle.
Description
Technical field
The present invention relates to a kind of jack field, specifically a kind of laborsaving convenient scissors screw jack.
Background technology
Scissor-like jack is called bracket jack, is domestic major automobile plant with vehicle product, and principle is had nothing in common with each other.By gold
Belong to upper rack posts made of plank and lower fulcrum bar composition.The cross section of upper rack posts and lower fulcrum bar are transversal teeth portion and its neighbouring part
Face is the rectangle of openings at one side, and the metallic plate on the both sides that are open bends inwards.Tooth on upper rack posts and lower fulcrum bar is by the both sides that are open
It is made on the metallic plate of bending, such jack manual operation, operating force is big, and lifting speed is slow, uses inconvenience.
Invention content
It realizing that behaviour reduces operating force purpose by gear reduction it is an object of the present invention to provide a kind of, passes through laborsaving behaviour
Make the handle cooperation tools such as charge drill and pneumatic impact spanner and realizes that fast lifting effect, laborsaving operation handle end can install high speed electricity
Machine connects the laborsaving convenient scissors screw jack that cigar lighter line realizes automatic lifting purpose.
The present invention solves technical problem and provides following scheme：
A kind of laborsaving convenient scissors screw jack, includes the top of the pedestal of channel steel one forging molding, U-shaped part forging molding
Head, the pedestal are designed with symmetrical equidistant through-hole with top, it is characterised in that：Left and right lower bracket is hinged on the pedestal,
Left and right lower bracket lower end is respectively equipped with intermeshing positive and negative tooth, and the top lower hinge has left and right upper bracket, left and right
Upper bracket upper end is respectively equipped with intermeshing positive and negative tooth, and the left lower bracket upper end is hingedly connected to upper left pedestal lower end
The both ends of nut, right lower bracket upper end are hingedly connected to the both ends of support shaft with right upper bracket lower end, and the nut is radially provided with
Tapped through hole, support shaft are radially provided with support shaft through-hole, and support shaft both sides connect work-saving device, and the work-saving device is by driving wheel
Composition is engaged with driven wheel transmission, realizes that labor-saving effect, lead screw sequentially pass through driven wheel by large transmission ratio gear shift
Component, support shaft through-hole, fixing sleeve, is screwed across nut thread through-hole plane bearing, and operation screw handle realizes fast lifting
Light condition jack, the operation driving wheel connect handle positive and negative rotation, realize that driving wheel drives driven wheel rotation to realize thousand
Jin top low speed elevation.
The tooth form of the left and right lower bracket is unanimously intermeshed, carrier openings size is consistent, is hinged through-hole and rotational axis hole
Size is consistent, and the tooth form of left and right upper bracket is consistent, carrier openings are consistent, it is consistent with rotational axis hole size to be hinged through-hole.
The positive and negative tooth of the left and right lower bracket is identical as the tooth profile parameter of positive and negative tooth of left and right upper bracket, it is left and right on
Trestle component is identical, and left and right lower bracket part is identical.
The left and right lower bracket, the pin shaft hole and rotational axis hole distance of left and right upper bracket are all equal.
The left and right lower bracket, the pin shaft hole and rotational axis hole distance of left and right upper bracket are all equal.
The upper and lower support gear position be equipped with reinforce gear tooth plate, periphery global formation varus reinforcing rib, pin shaft hole with turn
Shaft hole is equipped with hole flanging reinforcing rib, and holder both sides are equipped with to inside and outside molding strengthening ribs, and cradle back is equipped with lightening hole.
The left and right upper bracket is riveted with top, axis pin, and upper bracket side directly connects with top medial surface reinforcing rib boss
It touches, there is the big plane-plane contact that cuts to switch to small boss contact, eliminate moving surface friction, reduce outside operating force and lifter motion face surface
Protection is seen, left and right lower bracket is riveted with pedestal, axis pin, and lower bracket side is in direct contact with pedestal medial surface reinforcing rib boss, has
Plane-plane contact is cut greatly and switchs to small boss contact, eliminates moving surface friction, it is anti-with lifter motion face appearance to reduce operating force
Shield, upper and lower holder press with nut, shaft, and upper bracket lateral surface is in direct contact with hole flanging reinforcing rib on the inside of lower bracket, restocking two
It is contacted by hole flanging reinforcing rib between side and lower bracket medial surface and generates gap, eliminated moving surface and be in direct contact, there is big section
Face contact switchs to small boss contact, eliminates moving surface friction, reduces operating force and is protected with lifter motion face appearance.
The driven wheel is connect with jack lead screw, and lead screw is used as transmission shaft, by rotary screw rod handle in zero load
Quick manual can be achieved under state and lift effect, screw handle is equipped with through-hole, equally meets crank handle operation, and driving wheel connection saves
Power operation handle drives driving wheel rotation, driving wheel to be driven by gear connection driven using laborsaving operation handle as transmission shaft
Wheel rotation is transferred to lead screw rotation, completes jack and lifts purpose, and laborsaving operation handle end is equipped with detachable mounting hole,
Mounting hole can install square socket in various types, realize air gun, electric drill fast up-down function, and have installation high-speed electric expreess locomotive and realize
Automobile cigarette lighter energization function of auto-lift.
Support shaft of the present invention is radially provided with support shaft through-hole, and support shaft both sides connect work-saving device, and work-saving device has actively
Wheel is formed with driven wheel and related accessories, and labor-saving effect is realized by large transmission ratio gear shift, lead screw sequentially pass through from
Drive wheel assemblies, support shaft through-hole, fixing sleeve, are screwed across tapped through hole plane bearing, and operation screw handle realizes fast lifting
Light condition jack, operation driving wheel connect handle positive and negative rotation, realize that driving wheel drives driven wheel rotation to realize jack
Low speed elevation realizes laborsaving operation purpose.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 operates with schematic diagram for gas, the electric drill of the present invention.
Fig. 3 is that the crank of the present invention operates with schematic diagram.
Fig. 4 is the electronic automatic lifting schematic diagram of the present invention.
Fig. 5 is the positive and negative tooth engagement schematic diagram of left and right upper bracket of the present invention.
Fig. 6 is the positive and negative tooth engagement schematic diagram of left and right lower bracket of the present invention.
Fig. 7 is the upper bracket structural schematic diagram of the present invention.
Fig. 8 is the lower support structure schematic diagram of the present invention.
Fig. 9 is the upper assembly staking structural schematic diagram of the present invention.
Figure 10 is the lower component riveted structure schematic diagram of the present invention.
Specific implementation mode
Referring to attached drawing, referring to attached drawing, laborsaving portable screw jack, the molding pedestal 1 of channel steel integrated punching, U-shaped part
It is stamping forming to come directly towards 2, it is hinged with left and right lower bracket 3,4 on pedestal 1, left and right lower bracket 3,4 lower ends are respectively equipped with and mutually nibble
The commutating tooth 4.1 of conjunction and anti-tooth 4.2, and left and right lower bracket part is identical, 2 lower hinges of top have a left and right upper bracket, and 5,6, left,
Right upper bracket 5,6 upper ends are respectively equipped with intermeshing commutating tooth 5.1 and anti-tooth 5.2, and left and right lower bracket part is identical, lower-left branch
3 upper end of frame is hingedly connected to 4 upper end of both ends right lower brackets of nut 7 with 5 lower end of upper left holder and 6 lower end of right upper bracket is distinguished
The both ends of support shaft 8 are articulated with, the nut 7 is radially provided with tapped through hole, and support shaft 8 is radially provided with support shaft through-hole, support
8 both sides of axis connect work-saving device, and work-saving device is made of driving wheel 11 and driven wheel 10 and related accessories, passes through large transmission ratio tooth
Take turns gear realize labor-saving effect, lead screw 12 sequentially pass through driven wheel assembly, plane bearing, 8 through-hole of support shaft, fixing sleeve,
It screws across 7 tapped through hole of nut, operation 12 handle of lead screw realizes fast lifting light condition jack, operation driving wheel connection
12 positive and negative rotation of handle realizes that driving wheel drives driven wheel rotation to realize jack low speed elevation, realizes laborsaving operation purpose.
Left and right lower bracket 3,4 support gear positions, which are equipped with, reinforces gear tooth plate 4.3, periphery global formation varus reinforcing rib
4.7, pin shaft hole is equipped with hole flanging reinforcing rib 4.4,4.6 with rotational axis hole, and holder both sides are equipped with outside molding strengthening ribs 4.8, holder
The back side is equipped with lightening hole 4.5.
Left and right upper bracket 5,6 support gear positions, which are equipped with, reinforces gear tooth plate 5.3, periphery global formation varus reinforcing rib
5.7, pin shaft hole is equipped with hole flanging reinforcing rib 5.4,5.6 with rotational axis hole, and holder both sides are equipped with outside molding strengthening ribs 5.8, holder
The back side is equipped with lightening hole 5.5.
Left and right upper bracket 5,6 is riveted with top 2, axis pin 20, upper bracket 5,6 sides and 2 medial surface reinforcing rib boss of top
It is in direct contact, there is a section plane-plane contact greatly to switch to small boss contact, reduction operating force.Left and right lower bracket 3,4 and pedestal 1, axis pin
21 rivetings, lower bracket 3,4 sides and 1 medial surface reinforcing rib boss of pedestal are in direct contact, and have a big section plane-plane contact to switch to small convex
Platform contacts, and reduces operating force.Upper left, lower bracket 5,3 and nut 7, upper right, lower bracket 6,4 press with shaft 8, outside upper bracket 5,6
Side is in direct contact with lower bracket 3,4 inside hole flanging reinforcing ribs, is passed through between upper bracket 5,6 two sides and lower bracket 3,4 medial surfaces
The contact of hole flanging reinforcing rib generates gap, eliminates moving surface and is in direct contact, and has a section plane-plane contact greatly to switch to small boss contact, drop
Low operating force.
8 both sides of support shaft connect work-saving device and realize labor-saving effect, driven wheel 10 and jack by gear shift
Lead screw 12 connects, and lead screw 12 is used as transmission shaft, and quick manual can be achieved under unloaded use state by 12 handle of rotary screw rod
Effect is lifted, 12 handle of lead screw is equipped with through-hole, meets the operation of crank handle 17, and driving wheel 11 connects laborsaving operation handle 14, to save
Power operation handle 14 drives driving wheel 11 to rotate as transmission shaft, and driving wheel 11 is connected by gear drives driven wheel 10 to rotate,
It is transferred to the rotation of lead screw 12, jack is completed and lifts purpose.14 end of laborsaving operation handle is equipped with detachable mounting hole, installation
Hole can install square socket 15 in various types, realize air gun, 16 fast up-down function of electric drill, and it is real to have installation high-speed electric expreess locomotive 18
19 energization function of auto-lift of existing automobile cigarette lighter.
Claims (8)
1. a kind of laborsaving convenient scissors screw jack, includes the top of the pedestal of channel steel one forging molding, U-shaped part forging molding
Head, the pedestal are designed with symmetrical equidistant through-hole with top, it is characterised in that：Left and right lower bracket is hinged on the pedestal,
Left and right lower bracket lower end is respectively equipped with intermeshing positive and negative tooth, and the top lower hinge has left and right upper bracket, left and right
Upper bracket upper end is respectively equipped with intermeshing positive and negative tooth, and the left lower bracket upper end is hingedly connected to upper left pedestal lower end
The both ends of nut, right lower bracket upper end are hingedly connected to the both ends of support shaft with right upper bracket lower end, and the nut is radially provided with
Tapped through hole, support shaft are radially provided with support shaft through-hole, and support shaft both sides connect work-saving device, and the work-saving device is by driving wheel
Composition is engaged with driven wheel transmission, realizes that labor-saving effect, lead screw sequentially pass through driven wheel by large transmission ratio gear shift
Component, support shaft through-hole, fixing sleeve, is screwed across nut thread through-hole plane bearing, and operation screw handle realizes fast lifting
Light condition jack, the operation driving wheel connect handle positive and negative rotation, realize that driving wheel drives driven wheel rotation to realize thousand
Jin top low speed elevation.
2. laborsaving convenient scissors screw jack according to claim 1, it is characterised in that：The tooth of the left and right lower bracket
Shape is unanimously intermeshed, consistent, the hinged through-hole of carrier openings size is consistent with rotational axis hole size, the tooth form of left and right upper bracket
Unanimously, consistent, the hinged through-hole of carrier openings is consistent with rotational axis hole size.
3. laborsaving convenient scissors screw jack according to claim 1, it is characterised in that：The left and right lower bracket just,
Anti- tooth is identical as the tooth profile parameter of positive and negative tooth of left and right upper bracket, and left and right upper bracket part is identical, left and right lower bracket part
It is identical.
4. laborsaving convenient scissors screw jack according to claim 1, it is characterised in that：The left and right lower bracket, left,
The pin shaft hole of right upper bracket and rotational axis hole distance are all equal.
5. laborsaving convenient scissors screw jack according to claim 1, it is characterised in that：The left and right lower bracket, left,
The pin shaft hole of right upper bracket and rotational axis hole distance are all equal.
6. laborsaving convenient scissors screw jack according to claim 1, it is characterised in that：The upper and lower bracket teeth wheel portion
Position, which is equipped with, reinforces gear tooth plate, periphery global formation varus reinforcing rib, and pin shaft hole is equipped with hole flanging reinforcing rib, holder two with rotational axis hole
Side is equipped with to inside and outside molding strengthening ribs, and cradle back is equipped with lightening hole.
7. laborsaving convenient scissors screw jack according to claim 1, it is characterised in that：The left and right upper bracket and top
Head, axis pin riveting, upper bracket side are in direct contact with top medial surface reinforcing rib boss, have a big section plane-plane contact to switch to small convex
Platform contacts, and eliminates moving surface friction, reduces operating force and is protected with lifter motion face appearance, left and right lower bracket and pedestal, pin
Axis rivets, and lower bracket side is in direct contact with pedestal medial surface reinforcing rib boss, has a big section plane-plane contact to switch to small boss and connects
It touches, eliminates moving surface friction, reduce operating force and protected with lifter motion face appearance, upper and lower holder and nut, shaft pressure
Riveting, upper bracket lateral surface are in direct contact with hole flanging reinforcing rib on the inside of lower bracket, pass through between restocking two sides and lower bracket medial surface
The contact of hole flanging reinforcing rib generates gap, eliminates moving surface and is in direct contact, and has the big plane-plane contact that cuts to switch to small boss contact, disappears
Except moving surface friction, reduces operating force and protected with lifter motion face appearance.
8. laborsaving convenient scissors screw jack according to claim 1, it is characterised in that：The driven wheel and very heavy jackscrew
Bar connects, and lead screw can be achieved quick manual under unloaded use state as transmission shaft, by rotary screw rod handle and lift effect,
Screw handle is equipped with through-hole, equally meets crank handle operation, and driving wheel connects laborsaving operation handle, using laborsaving operation handle as
Transmission shaft drives driving wheel rotation, and driving wheel is connected by gear drives driven wheel to rotate, and is transferred to lead screw rotation, completes very heavy
Jacking drop purpose, laborsaving operation handle end are equipped with detachable mounting hole, and mounting hole can install square socket in various types, real
Existing air gun, electric drill fast up-down function, and have installation high-speed electric expreess locomotive and realize automobile cigarette lighter energization function of auto-lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810400115.8A CN108383025A (en) | 2018-04-28 | 2018-04-28 | Laborsaving convenient scissors screw jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810400115.8A CN108383025A (en) | 2018-04-28 | 2018-04-28 | Laborsaving convenient scissors screw jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108383025A true CN108383025A (en) | 2018-08-10 |
Family
ID=63066143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810400115.8A Pending CN108383025A (en) | 2018-04-28 | 2018-04-28 | Laborsaving convenient scissors screw jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108383025A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175801A (en) * | 2018-09-28 | 2019-01-11 | 江苏派远软件开发有限公司 | A kind of welding robot cooler bin Lifting Control System |
| CN111483938A (en) * | 2020-04-23 | 2020-08-04 | 常州大学 | Connecting rod expanding jack |
| CN113290368A (en) * | 2021-06-01 | 2021-08-24 | 安徽青松工具有限公司 | Equipment for automatically assembling vehicle support body |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2320614Y (en) * | 1998-01-19 | 1999-05-26 | 常熟市千斤顶厂 | Scissor jack |
| KR20040092675A (en) * | 2003-04-25 | 2004-11-04 | 전진주 | automatic screw jack |
| CN2883301Y (en) * | 2005-11-18 | 2007-03-28 | 胡国贤 | Electric/manual jack |
| CN101195466A (en) * | 2007-12-29 | 2008-06-11 | 马春路 | Speed changing force-saving skeleton symbol screw block and operating rocker handle thereof |
| CN202107479U (en) * | 2011-04-18 | 2012-01-11 | 浙江宏鑫电子有限公司 | Electric four-connecting-rod jack |
| CN202181187U (en) * | 2011-08-12 | 2012-04-04 | 李会军 | Speed-down type scissor jack |
| CN104876150A (en) * | 2015-06-02 | 2015-09-02 | 安徽青松工具有限公司 | Spiral shear jack |
| CN104891380A (en) * | 2015-06-02 | 2015-09-09 | 安徽青松工具有限公司 | Universalized spiral scissors type jack for three-top parts and tools |
| CN106608601A (en) * | 2015-10-26 | 2017-05-03 | 张丽娟 | Multifunctional mechanical jack |
| CN208361786U (en) * | 2018-04-28 | 2019-01-11 | 安徽青松工具有限公司 | Laborsaving convenient scissors screw jack |
-
2018
- 2018-04-28 CN CN201810400115.8A patent/CN108383025A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2320614Y (en) * | 1998-01-19 | 1999-05-26 | 常熟市千斤顶厂 | Scissor jack |
| KR20040092675A (en) * | 2003-04-25 | 2004-11-04 | 전진주 | automatic screw jack |
| CN2883301Y (en) * | 2005-11-18 | 2007-03-28 | 胡国贤 | Electric/manual jack |
| CN101195466A (en) * | 2007-12-29 | 2008-06-11 | 马春路 | Speed changing force-saving skeleton symbol screw block and operating rocker handle thereof |
| CN202107479U (en) * | 2011-04-18 | 2012-01-11 | 浙江宏鑫电子有限公司 | Electric four-connecting-rod jack |
| CN202181187U (en) * | 2011-08-12 | 2012-04-04 | 李会军 | Speed-down type scissor jack |
| CN104876150A (en) * | 2015-06-02 | 2015-09-02 | 安徽青松工具有限公司 | Spiral shear jack |
| CN104891380A (en) * | 2015-06-02 | 2015-09-09 | 安徽青松工具有限公司 | Universalized spiral scissors type jack for three-top parts and tools |
| CN106608601A (en) * | 2015-10-26 | 2017-05-03 | 张丽娟 | Multifunctional mechanical jack |
| CN208361786U (en) * | 2018-04-28 | 2019-01-11 | 安徽青松工具有限公司 | Laborsaving convenient scissors screw jack |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175801A (en) * | 2018-09-28 | 2019-01-11 | 江苏派远软件开发有限公司 | A kind of welding robot cooler bin Lifting Control System |
| CN111483938A (en) * | 2020-04-23 | 2020-08-04 | 常州大学 | Connecting rod expanding jack |
| CN113290368A (en) * | 2021-06-01 | 2021-08-24 | 安徽青松工具有限公司 | Equipment for automatically assembling vehicle support body |
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