CN107777605A - A kind of screw-jack - Google Patents
A kind of screw-jack Download PDFInfo
- Publication number
- CN107777605A CN107777605A CN201711259848.6A CN201711259848A CN107777605A CN 107777605 A CN107777605 A CN 107777605A CN 201711259848 A CN201711259848 A CN 201711259848A CN 107777605 A CN107777605 A CN 107777605A
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- Prior art keywords
- pair
- screw
- screw rod
- plate
- base
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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
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
A kind of screw-jack, feature：Including a base, one, rotatably screw rod and one of the hub setting on base length direction and positioned at width middle position are connected with screw flight and are supported on the jacking apparatus slided on base.Performed relative motion as a result of rectangular frame base and by screw rod band movable slider in rectangular frame base to promote elevator to move up and down, this smoothly frame-type base promotes the structure type of elevator jacking along with triangular support plate, the stability of product can be effectively improved, toppling over of avoiding that jack body occurs by force unbalance is caved in；Jacking apparatus can be stored to rectangular frame base, volume when effectively reducing storage and carrying, save cost of transportation；The quantity of parts reduces, is simple to operate, cheap in overall structure, and the scope of application is wider.
Description
Technical field
The invention belongs to technical field of jacks, and in particular to a kind of screw-jack.
Background technology
Jack is one of instrument indispensable in human lives, either industrial and mining enterprises or Auto repair shop also or
It is that ordinary maintenance in family may all use jack as Auxiliary support, and with the development of the society, the application of jack
Also increasingly popularize, while also gradually develop to the small-size jack direction of suitable life-stylize, and want that cube is light and handy, structure
Simply, it is easy to carry, the storage and use of the people that are more convenient for.At present, more typical small-sized hydraulic jack, although operation is more
Stable and jacking weight is larger, but existing deficiency is：It is expensive, heavier-weight, family's storage and onboard are not easy to,
And existing screw-jack, although meeting simple light and handy standard, structure rather unstable, in actual use easily
There is the situation caved in, jack difficulty.
It is no lack of the technical information on screw-jack in disclosed Chinese patent literature, it is typical as China is practical new
" one kind fork contracting formula screw-jack " disclosed in type license notification number CN203079622U, including lower support arm group, on
Supporting arm group, each upper supporting arm, each lower support arm have identical geometry key element, are equipped with identical " u "-shaped open slot
And reinforced frame；The first side plate, the second side plate are provided with top, strengthens swash plate, buckling groove, enclosed frame and top plate；Lower support
The rotation that arm group and upper supporting arm group are implemented at each " u "-shaped open slot with hinge block, hinge nut respectively couples and formed each
From revolute pair.The structure is supported on base by lower support arm group, overall in rhombus small, broad in the middle up and down, in reality
Easily cause to topple over because of force unbalance in use and cave in, potential safety hazard be present.
To sum up, it is necessary to design a kind of volume it is light and handy, it is simple in construction and stably, easy to use and cost is cheap, is easy to
Storage and the screw-jack carried.Therefore, the applicant has made beneficial design, technical scheme described below is
It is caused under this background.
The content of the invention
The invention aims to provide a kind of screw-jack, be advantageous to optimize the fit structure of support and jacking frame by
Caved in improving the stability that uses and avoiding toppling over, help to reduce quantity and the volume of parts to reduce cost and operation
Difficulty, while it is easy to the storage and carrying of people in rectangular parallelepiped structure in a contracted state, cost of transportation is reduced, and be applicable model
Enclose wider.
The purpose of the present invention is such to what is reached, a kind of screw-jack, it is characterised in that：Including a base, a rotation
Turn screw rod and one of the ground hub setting on base length direction and positioned at width middle position to be connected with screw flight
And it is supported on the jacking apparatus slided on base.
In the specific embodiment of the present invention, described base includes a pair of fulcrum bearings and is separately positioned on for a pair
Guide holder on fulcrum bearing both ends, described fulcrum bearing and guide holder form rectangular frame structure, described screw rod rotatably pivot
Put between a pair of fulcrum bearings and extend outside fulcrum bearing and holding positioned at the middle position of fulcrum bearing, one end of the screw rod
Portion, which is formed, a rotary connecting joint；The section of described guide holder take the shape of the letter U hatch frame and a pair of guide holders opening each other
Be oppositely arranged, and the U-shaped opening lower wall of guide holder is respectively facing the interior side direction extension of rectangular frame and forming has for supplying
The slide plate that jacking apparatus rolls thereon.
In another specific embodiment of the present invention, U-shaped opening chamber of the described guide holder at length direction both ends
A connecting plate is inside respectively arranged with, offers a connecting hole respectively on described connecting plate；Described fulcrum bearing is on both ends
And the opening position of corresponding a pair of connecting holes offers a screw hole respectively, passes through between described connecting hole and corresponding screw hole
Fastener connects and realizes a pair of fulcrum bearings and the fixation of a pair of guide holders.
In another specific embodiment of the present invention, described jacking apparatus includes a left slider and a right sliding block,
Described left slider and right sliding block are slidably arranged on spiro rod length direction respectively；A pair of left support plates, this is to left support plate
One end respectively by a left support axle rotatably hub setting in the side wall of left slider front and rear sides, on a pair of left support axles and
Be also respectively provided with a left wheel on the position on the outside of a pair of left support plates, described left wheel respectively with a pair of guide holders
Slide plate structure for roll coordinate；A pair of right support plates, the one end to right support plate pass through a right support axle rotatably pivot respectively
Put in the side wall of right sliding block front and rear sides, and the other end is cut with scissors by a left bearing pin and the other end of a pair of left support plates respectively
Connect, a right roller, the described right side are also respectively provided with a pair of right support axles and on the position on the outside of a pair of right slide plates
Roller coordinates with the slide plate structure of a pair of guide holders to roll respectively；A pair of balance plates, the one end to balance plate pass through one respectively
Connecting pin is hinged on left slider and is symmetrically located at the front and back of screw rod；One elevator, the elevator are located at a pair of left supports
The top of plate and a pair of right support plate short transverses, the bottom of its short transverse have a pair of consolidating along the extension of spiro rod length direction
Fixed board, the left end of described fixed plate respectively rotatably hub setting on a pair of left bearing pins, and right-hand member respectively by a right bearing pin with
The other end of a pair of balance plates is hinged.
There is the left side for running through its length direction in another specific embodiment of the present invention, on described left slider
Screw, has a right screw for running through its length direction on described right sliding block, described left screw and right screw respectively with spiral shell
Bar is threadedly coupled and left screw is opposite with the hand of spiral of right screw.
In the also specific embodiment of the present invention, described left support plate and the junction of left support axle are set
There is left bearing, described right support plate and the junction of right support axle are provided with right bearing.
The present invention's and then in a specific embodiment, described elevator is provided with anti-above short transverse
Slip layer.
In a still more specific embodiment of the invention, the material of described skid resistant course is rubber.
The present invention makees phase as a result of rectangular frame base and by screw rod band movable slider in rectangular frame base
Elevator is promoted to move up and down to moving, this smoothly frame-type base promotes elevator top along with triangular support plate
The structure type risen, the stability of product can be effectively improved, toppling over of avoiding that jack body occurs by force unbalance is collapsed
Collapse；Secondly, jacking apparatus can be stored to rectangular frame base, volume when effectively reducing storage and carrying, save fortune
Defeated cost；3rd, the quantity of parts reduces, is simple to operate, cheap in overall structure, and the scope of application is wider.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of one embodiment of the invention.
In figure：1. base, 11. fulcrum bearings, 111. screw holes, 12. guide holders, 121. slide plates, 122. connecting plates, 1221.
Connecting hole；2. screw rod, 21. rotary connecting joints；3. jacking apparatus, 31. left sliders, 311. left screws, 32. right sliding blocks, 321. right sides
Screw, 33. left support plates, 331. left support axles, 332. left wheels, 333. left bearings, 334. left bearing pins, 34. right support plates,
341. right support axles, 342. right rollers, 343. right bearings, 35. balance plates, 351. connecting pins, 352. right bearing pins, 36. elevators,
361. fixed plates, 362. skid resistant courses.
Embodiment
In order that the auditor of the Patent Office especially public can be more clearly understood the technical spirit of the present invention and have
Beneficial effect, applicant will elaborate by way of examples below, but the description to embodiment is not to this hair
The limitation of bright scheme, any only formal rather than substantial equivalent transformation according to made by present inventive concept all should
It is considered as technical scheme category.
The concept of the every directionality for being related to upper, lower, left, right, front and rear or directionality is all in the following description
For the location of current Fig. 1 state, thus the spy to technical scheme provided by the invention can not be understood as
Do not limit.
Referring to Fig. 1, the present invention relates to a kind of screw-jack, including a base 1, one rotatably in base 1 grow by hub setting
It is threadedly coupled with screw rod 2 on degree direction and positioned at the screw rod 2 and one of width middle position and is supported on base 1
The jacking apparatus 3 of upper slip.
Further, described base 1 includes a pair of fulcrum bearings 11 and is separately positioned on for a pair on the both ends of fulcrum bearing 11
Guide holder 12, described fulcrum bearing 11 and guide holder 12 form rectangular frame structure, described screw rod 2 rotatably hub setting at a pair
Extend outside fulcrum bearing 11 and holding between fulcrum bearing 11 and positioned at the middle position of fulcrum bearing 11, one end of the screw rod 2
Portion, which is formed, a rotary connecting joint 21；The section of described guide holder 12 takes the shape of the letter U the opening of hatch frame and a pair of guide holders 12
Mouth is positioned opposite to each other, and the U-shaped opening lower wall of guide holder 12 is respectively facing the interior side direction extension of rectangular frame and formed
There is the slide plate 121 for being rolled for jacking apparatus 3 thereon.U-shaped opening chamber of the described guide holder 12 at length direction both ends
A connecting plate 122 is inside respectively arranged with, offers a connecting hole 1221 respectively on described connecting plate 122；Described supporting
Seat 11 is on both ends and the opening positions of corresponding a pair of connecting holes 1221 offers a screw hole 111, described connecting hole respectively
Connected between 1221 and corresponding screw hole 111 by fastener to realize consolidating for a pair of fulcrum bearings 11 and a pair of guide holders 12
It is fixed.
Further, described jacking apparatus 3 includes a left slider 31 and a right sliding block 32, described left slider 31 and the right side
Sliding block 32 is slidably arranged on the length direction of screw rod 2 respectively；A pair of left support plates 33, this to left support plate 33 one end difference
By a left support axle 331, rotatably hub setting is in the side wall of the front and rear sides of left slider 31, on a pair of left support axles 331 and position
In being also respectively provided with a left wheel 332 on the position in the outside of a pair of left support plates 33, described left wheel 332 respectively with a pair
The structure of slide plate 121 of guide holder 12 coordinates to roll；A pair of right support plates 34, it is right that the one end to right support plate 34 passes through one respectively
Rotatably hub setting is in the side wall of the right front and rear sides of sliding block 32 for support shaft 341, and the other end passes through a left bearing pin 334 and one respectively
The other end of left support plate 34 is hinged, on a pair of right support axles 341 and on the position in a pair of right outsides of slide plate 32 also
A right roller 342 is respectively arranged with, described right roller 342 coordinates with the structure of slide plate 121 of a pair of guide holders 12 to roll respectively；
A pair of balance plates 35, the one end to balance plate 35 are hinged on left slider 31 by a connecting pin 351 respectively（Specifically, exist
It is illustrated as in the figure of the present embodiment on the right-hand member end face of left slider 31）And it is symmetrically located at the front and back of screw rod 2；One elevator
36, the elevator 36 is located at the top of a pair of left support plates 33 and a pair of short transverses of right support plate 34, the bottom of its short transverse
Portion has a pair of fixed plates 361 extended along the length direction of screw rod 2, the left end respectively rotatably hub setting of described fixed plate 361
On a pair of left bearing pins 334, and right-hand member is hinged by the other end of a right bearing pin 352 and a pair of balance plates 35 respectively.
Further, there is a left screw 311 for running through its length direction, described right sliding block on described left slider 31
There is a right screw 321 for running through its length direction on 32, described left screw 311 and right screw 321 respectively with the screw thread of screw rod 2
Connect and left screw 311 is opposite with the hand of spiral of right screw 321.
Further, described left support plate 33 and the junction of left support axle 331 are provided with left bearing 333, described
Right support plate 34 and the junction of right support axle 341 are provided with right bearing 343.
Further, described elevator 36 is provided with skid resistant course 362 above short transverse, the skid resistant course 362
Material is unrestricted, and rubber is preferably used in the present embodiment.
Please continue to refer to Fig. 1, when jack needs jacking, base 1 is placed on the horizontal plane below object first,
And elevator 36 is set, then by the rotary screw 2 of rotary connecting joint 21, screw rod 2 is driven left slider 31 and right cunning towards object
Block 32 simultaneously to centre draw close by constant speed, and during being drawn close to centre, described left support axle 331 and right support axle 341 divide
The U-shaped opening intracavitary of guide holder 12 is not stretched into and is slided relatively along the length direction of screw rod 2, described left chain wheel 332 and the right side
Pulley 342 is also respectively supported in a pair of slide 121 and rolled relatively along the length direction of screw rod 2, described left support plate
33 and right support plate 34 one end other end for making to be connected to each other with the promotion of left slider 31 and right sliding block 32 formed it is upward
The other end of shearing force, the left support plate 33 and right support plate 34 pushes up elevator 36 by left bearing pin 334, while described
Balance plate 35 it is remained upward state with the rising of elevator 36；When needing to store storage, need to only lead to
The opposite direction rotary screw 2 of rotary connecting joint 21 is crossed, screw rod 2 is driven left slider 31 and right sliding block 32 constant speed both sides to the left and right simultaneously
Direction is back to displacement, until described left support plate 33, right support plate 34 and balance plate 35 is parallel to each other and is collectively disposed at base 1
Centre form rectangular frame in, now, the upper surface and the upper surface of base 1 of described elevator 36 maintain an equal level, make integrally be in
Rectangular parallelepiped structure, therefore effectively reduce the volume of jack, is very easy to store and carries, at the same also reduce transport into
This.
Claims (8)
- A kind of 1. screw-jack, it is characterised in that：Including a base (1), one rotatably hub setting on base (1) length direction And the screw rod (2) and one positioned at width middle position are threadedly coupled and are supported on base (1) with screw rod (2) The jacking apparatus (3) of slip.
- 2. a kind of screw-jack according to claim 1, it is characterised in that described base (1) includes a pair of fulcrum bearings And the guide holder (12) that is separately positioned on for a pair on fulcrum bearing (11) both ends, described fulcrum bearing (11) and guide holder (12) (11) Rectangular frame structure is formed, rotatably hub setting between a pair of fulcrum bearings (11) and is located at fulcrum bearing (11) to described screw rod (2) Middle position, one end of the screw rod (2) extend fulcrum bearing (11) outside and end form have a rotary connecting joint (21)；The section of described guide holder (12) takes the shape of the letter U the settings with opening opposite to each other of hatch frame and a pair of guide holders (12), And the U-shaped opening lower wall of guide holder (12) be respectively facing rectangular frame interior side direction extension and form have for for jacking dress Put the slide plate (121) that (3) roll thereon.
- 3. a kind of screw-jack according to claim 2, it is characterised in that described guide holder (12) is in length direction The U-shaped opening intracavitary at both ends is respectively arranged with a connecting plate (122), and a company is offered respectively on described connecting plate (122) Connect hole (1221)；Described fulcrum bearing (11) is on both ends and the opening positions of corresponding a pair of connecting holes (1221) offers one respectively Screw hole (111), connected between described connecting hole (1221) and corresponding screw hole (111) by fastener to realize a pair Fulcrum bearing (11) and the fixation of a pair of guide holders (12).
- 4. a kind of screw-jack according to claim 2, it is characterised in that described jacking apparatus (3) includes a left cunning Block (31) and a right sliding block (32), described left slider (31) and right sliding block (32) are slidably arranged in screw rod (2) length respectively On direction；A pair of left support plates (33), the one end to left support plate (33) pass through a left support axle (331) rotatably pivot respectively Put in the side wall of left slider (31) front and rear sides, on a pair of left support axles (331) and positioned at a pair of left support plates (33) outside It is also respectively provided with a left wheel (332) on the position of side, described left wheel (332) cunning with a pair of guide holders (12) respectively Plate (121) structure coordinates to roll；A pair of right support plates (34), the one end to right support plate (34) pass through a right support axle respectively (341) rotatably hub setting is in the side wall of right sliding block (32) front and rear sides, and the other end passes through a left bearing pin (334) and one respectively The other end of left support plate (34) is hinged, the position on a pair of right support axles (341) and on the outside of a pair of right slide plates (32) Put and be also respectively provided with a right roller (342), described right roller (342) slide plate with a pair of guide holders (12) respectively (121) structure coordinates to roll；A pair of balance plates (35), the one end to balance plate (35) pass through a connecting pin (351) and cut with scissors respectively It is connected on left slider (31) and is symmetrically located at the front and back of screw rod (2)；One elevator (36), the elevator (36) are located at a pair The top of left support plate (33) and a pair of right support plate (34) short transverses, the bottom of its short transverse have a pair along screw rod (2) fixed plate (361) of length direction extension, the left end of described fixed plate (361) respectively rotatably hub setting in a pair of left pins On axle (334), and right-hand member is hinged by the other end of a right bearing pin (352) and a pair of balance plates (35) respectively.
- 5. a kind of screw-jack according to claim 4, it is characterised in that have on described left slider (31) consistent The left screw (311) of its length direction is worn, there is a right screw for running through its length direction on described right sliding block (32) (321), described left screw (311) and right screw (321) be threadedly coupled respectively with screw rod (2) and left screw (311) with it is right The hand of spiral of screw (321) is opposite.
- 6. a kind of screw-jack according to claim 4, it is characterised in that described left support plate (33) and left support The junction of axle (331) is provided with left bearing (333), and described right support plate (34) and the junction of right support axle (341) are set It is equipped with right bearing (343).
- 7. a kind of screw-jack according to claim 4, it is characterised in that described elevator (36) is in short transverse Top be provided with skid resistant course (362).
- 8. a kind of screw-jack according to claim 7, it is characterised in that the material of described skid resistant course (362) is rubber Glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259848.6A CN107777605A (en) | 2017-12-04 | 2017-12-04 | A kind of screw-jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259848.6A CN107777605A (en) | 2017-12-04 | 2017-12-04 | A kind of screw-jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107777605A true CN107777605A (en) | 2018-03-09 |
Family
ID=61429805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711259848.6A Pending CN107777605A (en) | 2017-12-04 | 2017-12-04 | A kind of screw-jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107777605A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640427A (en) * | 2019-10-16 | 2020-01-03 | 广汽乘用车有限公司 | Rear overhang assembly jacking equipment |
| CN110713137A (en) * | 2019-11-07 | 2020-01-21 | 广州市第一市政工程有限公司 | Oil top handling tool |
| CN111689420A (en) * | 2020-06-11 | 2020-09-22 | 乐伟楠 | Support driving mechanism for realizing three-dimensional space motion |
| CN111977564A (en) * | 2020-08-20 | 2020-11-24 | 南京英德利汽车有限公司 | Simple jacking structure and device of automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2046397A1 (en) * | 1970-09-19 | 1972-03-30 | Fa August Bilstein, 5828 Ennepe tal | Jack |
| GB9125843D0 (en) * | 1991-05-30 | 1992-02-05 | Lopez Gonzalez Alonso | Vehicle jack |
| GB9224515D0 (en) * | 1992-04-10 | 1993-01-13 | Lopez Gonzalez Alonso | Ajack |
| JPH0986889A (en) * | 1995-09-25 | 1997-03-31 | Masahiko Maeda | Super thin jack |
| CN201228214Y (en) * | 2008-06-22 | 2009-04-29 | 竺浩飞 | Electric jack for automobile |
| CN203319636U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Valve supports securing device |
| CN105384107A (en) * | 2015-12-11 | 2016-03-09 | 沃德传动（天津）股份有限公司 | Lift |
| CN207581251U (en) * | 2017-12-04 | 2018-07-06 | 常熟通润汽车修理设备有限公司 | A kind of screw-jack |
-
2017
- 2017-12-04 CN CN201711259848.6A patent/CN107777605A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2046397A1 (en) * | 1970-09-19 | 1972-03-30 | Fa August Bilstein, 5828 Ennepe tal | Jack |
| GB9125843D0 (en) * | 1991-05-30 | 1992-02-05 | Lopez Gonzalez Alonso | Vehicle jack |
| GB9224515D0 (en) * | 1992-04-10 | 1993-01-13 | Lopez Gonzalez Alonso | Ajack |
| JPH0986889A (en) * | 1995-09-25 | 1997-03-31 | Masahiko Maeda | Super thin jack |
| CN201228214Y (en) * | 2008-06-22 | 2009-04-29 | 竺浩飞 | Electric jack for automobile |
| CN203319636U (en) * | 2013-06-05 | 2013-12-04 | 中国石油天然气股份有限公司 | Valve supports securing device |
| CN105384107A (en) * | 2015-12-11 | 2016-03-09 | 沃德传动（天津）股份有限公司 | Lift |
| CN207581251U (en) * | 2017-12-04 | 2018-07-06 | 常熟通润汽车修理设备有限公司 | A kind of screw-jack |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640427A (en) * | 2019-10-16 | 2020-01-03 | 广汽乘用车有限公司 | Rear overhang assembly jacking equipment |
| CN110713137A (en) * | 2019-11-07 | 2020-01-21 | 广州市第一市政工程有限公司 | Oil top handling tool |
| CN111689420A (en) * | 2020-06-11 | 2020-09-22 | 乐伟楠 | Support driving mechanism for realizing three-dimensional space motion |
| CN111689420B (en) * | 2020-06-11 | 2022-08-09 | 乐伟楠 | Support driving mechanism for realizing three-dimensional space motion |
| CN111977564A (en) * | 2020-08-20 | 2020-11-24 | 南京英德利汽车有限公司 | Simple jacking structure and device of automobile |
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