CN201770443U - Manual scissor-like jack - Google Patents
Manual scissor-like jack Download PDFInfo
- Publication number
- CN201770443U CN201770443U CN2010205358937U CN201020535893U CN201770443U CN 201770443 U CN201770443 U CN 201770443U CN 2010205358937 U CN2010205358937 U CN 2010205358937U CN 201020535893 U CN201020535893 U CN 201020535893U CN 201770443 U CN201770443 U CN 201770443U
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- CN
- China
- Prior art keywords
- screw mandrel
- gear
- gear case
- upper bracket
- bracket
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- Expired - Fee Related
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Abstract
The utility model provides a manual scissor-like jack, comprising a base, a jack rack, an upper rack, a lower rack and a screw rod. The utility model is characterized in that two upper racks and two lower racks are provided; one ends of the two lower racks are respectively and movably connected to the base, and one ends of the two upper racks are respectively and movably connected to the jack rack; the other ends of the two upper racks are respectively and movably connected to the other ends of the two lower racks in a one-to-one manner; one end of the screw rod is in a thread connection with the joint of a pair of the upper rack and the lower rack which are mutually connected. The scissor-like jack also comprises a decelerator which is connected to the other end of the screw rod. The decelerator is arranged at the joint of the other pair of the upper rack and the lower rack which are mutually connected. A stop device is arranged between the rear end of the decelerator and the screw rod. With the arrangement of the decelerator, the operation is more labor-saving and easier and more stable.
Description
Technical field
The utility model relates to technical field of jacks, specifically is a kind of manual scissors-type jack.
Background technology
Common manual scissors-type jack mainly comprises base, ceiling hold, screw mandrel, upper bracket and lower bracket, one end of base and lower bracket flexibly connects, one end of the other end of lower bracket and upper bracket flexibly connects, the other end of upper bracket and ceiling hold flexibly connect, upper bracket and lower bracket all have two pairs, the two ends of screw mandrel are threaded respectively at the junction with two pairs of interconnective upper brackets and lower bracket, drive screw mandrel by crank and rotate the lifting that realizes manual scissors-type jack.This traditional jack is operated comparatively effort in actual use, makes that the operation of manual scissors-type jack is comparatively difficult.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of saving muscle power, scissors-type jack easy and simple to handle.
For solving the problems of the technologies described above, the manual scissors-type jack that the utility model provides, it comprises base, ceiling hold, upper bracket, lower bracket and screw mandrel, described upper bracket and lower bracket all have two, described two lower brackets all have an end to flexibly connect with base respectively, described two upper brackets all have all has an end to flexibly connect with ceiling hold respectively, the other end of described two upper brackets is respectively at corresponding one by one flexible connection of the other end of two lower brackets, one end of described screw mandrel is threaded with the junction of a pair of interconnective upper bracket and lower bracket wherein, it also comprises speed reduction gearing, the other end of described screw mandrel is connected with speed reduction gearing, described speed reduction gearing is installed in another junction to interconnective upper bracket and lower bracket, also is provided with inhibiting device between described speed reduction gearing rear end and the screw mandrel.
After adopting above structure, the manual scissors-type jack of the utility model compared with prior art has the following advantages:
By a end speed reduction gearing is set at screw mandrel, the operator uses crank to drive the propulsive effort that driving wheel rotated and provided high rotating speed, little moment of torsion, with driving wheel ingear satellite gear the high rotating speed of driving wheel, the propulsive effort of low moment of torsion are converted into the propulsive effort of slow speed of revolution, high pulling torque and pass to screw mandrel, owing to only need the less moment of torsion of input just can drive manual scissors-type jack, so comparatively save muscle power, operate also just easy, and be convenient to provide enough propulsive efforts to screw mandrel, make more steady to the operation of manual scissors-type jack.
As improvement, described speed reduction gearing is an epicyclic reduction gear.The structure of epicyclic reduction gear is comparatively reliable, and practicality is convenient to install.
Concrete, described epicyclic reduction gear comprises gear case, is provided with internally toothed annulus in the described gear case, is provided with pinion carrier, satellite gear and center gear in the described internally toothed annulus, described center gear and satellite gear engagement are provided with pad between the front end cover of described internally toothed annulus and gear case; Described gear case and upper bracket and lower bracket are hinged, and the rear end of described gear case is provided with through hole, and described screw mandrel passes this through hole and is connected with pinion carrier, and described center gear is provided with the jack that matches with crank.Rotated synchronously by center driving wheel driving screw mandrel and pinion carrier, the jack on the driving wheel of center cooperates with crank makes that operation is more easy.
As improvement, described gear case and upper bracket and lower bracket are hinged to be meant, described upper bracket and lower bracket are all hinged through bolt and gear case as hinge pin, and the sidewall of described gear case is provided with tapped blind hole, and described bolt and tapped blind hole screw.Use the bolt hinge pin for ease of dismounting.
As improvement, described screw mandrel passes this through hole and is connected with pinion carrier and is meant, described screw mandrel is provided with the shaft shoulder, the through hole and the shaft shoulder that described screw mandrel passes the gear case rear end are positioned at gear case, be provided with thrust baring between the described shaft shoulder and the gear case, described pinion carrier and screw mandrel cover merge circumferentially spacing.Being connected between pinion carrier and the screw mandrel is comparatively simple and practical, is convenient to dismounting, and the thrust baring between the shaft shoulder and the gear case can be avoided friction.
As improvement, the transmitting ratio of center driving wheel and satellite gear is 2: 1 in the described gear reducer.Like this, can make the stressed and rotative speed of screw mandrel all just right.
As preferably, described inhibiting device is the screw mandrel cover, and described stop collar is fixed on the screw mandrel outside the gear case rear end.Be provided with on the screw mandrel outside the gear case rear end after the screw mandrel cover, can prevent manual scissors-type jack when incorporating, screw mandrel circles round excessive in the gear dieback in the gear case, thereby guarantees the normal operation of gear reducer and whole manual scissors-type jack.
Description of drawings
Fig. 1 is the structural representation of the manual scissors-type jack of the utility model;
Fig. 2 is an exploded view of the present utility model;
Wherein, 1, screw mandrel; 1.1, the shaft shoulder; 2, epicyclic reduction gear; 3, upper bracket; 4, lower bracket; 5, pinion carrier; 6, center gear; 6.1, jack; 7, satellite gear; 8, base; 9, ceiling hold; 10, screw mandrel cover; 11, gear case; 12, internally toothed annulus; 13, thrust baring; 14, pad; 15, front end cover; 15.1, through hole; 16, bolt; 17, tapped blind hole; 18, coupling nut.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As Fig. 1, shown in Figure 2, the manual scissors-type jack of the utility model, it comprises base 8, ceiling hold 9, upper bracket 3, lower bracket 4 and screw mandrel 1, described upper bracket 3 and lower bracket 4 all have two, described two lower brackets all have an end to flexibly connect with base 8 respectively, described two upper brackets all have all has an end to flexibly connect with ceiling hold respectively, the other end of described two upper brackets is respectively at corresponding one by one flexible connection of the other end of two lower brackets, one end of described screw mandrel 1 is threaded with the junction of a pair of interconnective upper bracket 3 and lower bracket 4 wherein, concrete is exactly, be provided with coupling nut 18 between one of them upper bracket 3 and a lower bracket, this coupling nut's 18 two ends are provided with tapped bore, thereby upper bracket 3 and lower bracket 4 all are connected the flexible connection that realizes between the two by bolt 16 with coupling nut 18 promptly hinged, the bolt 16 here plays the effect of hinge pin, the part screw rod of bolt 16 is a polished rod, be convenient to the rotation of upper bracket 3 and lower bracket 4 like this, also be provided with the tapped through hole that screws for screw mandrel 1 on coupling nut 18, screw mandrel 1 is threaded with coupling nut 18.
It also comprises speed reduction gearing, and the other end of described screw mandrel 1 is connected with speed reduction gearing, and described speed reduction gearing is installed in another junction to interconnective upper bracket 3 and lower bracket 4, also is provided with inhibiting device between described speed reduction gearing rear end and the screw mandrel 1.
Concrete, this speed reduction gearing is an epicyclic reduction gear 2, it comprises gear case 11, be provided with internally toothed annulus 12 in the gear case 11, internally toothed annulus 12 is fixed in the gear case 11, concrete is exactly, the madial wall of gear case 11 is provided with slot, and the lateral wall of internally toothed annulus 12 is provided with rib, internally toothed annulus 12 just is inserted in the slot on the gear case 12 by rib, is provided with pinion carrier 5 in internally toothed annulus 12, three satellite gears 7 and center gear 6, center gear 6 is meshed with three satellite gears 7, for keeping the stable of three satellite gears 7, between the front end cover 15 of internally toothed annulus 12 and gear case 11, be provided with pad 14; Gear case 11 is hinged with upper bracket 3 and lower bracket 4, the rear end of gear case 11 is provided with through hole, and screw mandrel 1 passes this through hole and is connected with pinion carrier 5, and center gear 6 is provided with the jack 6.1 that matches with crank, clearly, on front end cover 15, be provided with the through hole 15.1 that passes for crank.Like this, crank can pass this through hole 15.1 driven wheel retarder 2 that matches with jack 6.1 on the center gear 6.
Above-mentioned gear case and upper bracket 3 and lower bracket 4 flexibly connect and are meant, upper bracket 3 and lower bracket 4 are all hinged with gear case 11 through the bolt 16 as hinge pin, the sidewall of gear case 11 is provided with tapped blind hole 17, bolt 16 screws with tapped blind hole 17, the degree of depth of tapped blind hole 17 less than bolt 16 length, like this, be convenient to the rotation of upper bracket 3 and lower bracket 4.
Above-mentioned screw mandrel 1 passes this through hole and is connected with pinion carrier 5 and is meant, screw mandrel 1 is provided with the shaft shoulder 1.1, the through hole and the shaft shoulder 1.1 that screw mandrel 1 passes gear case 11 rear ends are positioned at gear case 11, be provided with thrust baring 13 between the shaft shoulder 1.1 and the gear case 11, pinion carrier 5 merges circumferentially spacing mode with screw mandrel 1 by cover and is connected.
For making screw mandrel 1 can be subjected to enough propulsive efforts and making it keep suitable rotating speed, can make the center gear 6 and the transmitting ratio of satellite gear 7 is 2: 1.
Above-mentioned inhibiting device is a screw mandrel cover 10, on described screw mandrel cover 10 screw mandrels 1 that are fixed on outside gear case 11 rear ends.During installation, screw mandrel 1 passes the through hole of gear case 11 rear ends earlier, and then screw mandrel cover 10 is screwed to gear case 11 rear ends along screw mandrel 1, and uses press that screw mandrel cover 10 is pressed abd fixed on the screw mandrel 1, screw mandrel 1 rotation is connected with coupling nut 18 at last again.
Claims (7)
1. manual scissors-type jack, it comprises base (8), ceiling hold (9), upper bracket (3), lower bracket (4) and screw mandrel (1), described upper bracket (3) and lower bracket (4) all have two, described two lower brackets (4) all have an end to flexibly connect with base (8) respectively, described two upper brackets (3) all have an end to flexibly connect with ceiling hold (9) respectively, the other end of described two upper brackets (3) is respectively at corresponding one by one flexible connection of the other end of two lower brackets (4), one end of described screw mandrel (1) is threaded with the junction of a pair of interconnective upper bracket (3) and lower bracket (4) wherein, it is characterized in that: it also comprises speed reduction gearing, the other end of described screw mandrel (1) is connected with speed reduction gearing, described speed reduction gearing is installed in another junction to interconnective upper bracket (3) and lower bracket (4), and described speed reduction gearing rear end and screw mandrel also are provided with inhibiting device between (1).
2. manual scissors-type jack according to claim 1 is characterized in that: described speed reduction gearing is epicyclic reduction gear (2).
3. manual scissors-type jack according to claim 2, it is characterized in that: described epicyclic reduction gear (2) comprises gear case (11), be provided with internally toothed annulus (12) in the described gear case (11), be provided with pinion carrier (5), satellite gear (7) and center gear (6) in the described internally toothed annulus (12), described center gear (6) and satellite gear (7) engagement are provided with pad (14) between the front end cover (15) of described internally toothed annulus (12) and gear case (11); Described gear case (11) flexibly connects with upper bracket (3) and lower bracket (4), the rear end of described gear case (11) is provided with through hole, described screw mandrel (1) passes this through hole and is connected with pinion carrier (5), described center gear (6) is provided with the jack (6.1) that matches with crank, and described front end cover (15) is provided with the through hole (15.1) that passes for crank.
4. manual scissors-type jack according to claim 3, it is characterized in that: described gear case and upper bracket (3) and lower bracket (4) flexibly connect and are meant, described upper bracket (3) and lower bracket (4) are all hinged with gear case (11) through the bolt (16) as hinge pin, the sidewall of described gear case (11) is provided with tapped blind hole (17), and described bolt (16) screws with tapped blind hole (17).
5. manual scissors-type jack according to claim 3, it is characterized in that: described screw mandrel (1) passes this through hole and is connected with pinion carrier (5) and is meant, described screw mandrel (1) is provided with the shaft shoulder (1.1), the through hole and the shaft shoulder (1.1) that described screw mandrel (1) passes gear case (11) rear end are positioned at gear case (11), be provided with thrust baring (13) between the described shaft shoulder (1.1) and the gear case (11), described pinion carrier (5) merges circumferentially spacing with screw mandrel (1) cover.
6. manual scissors-type jack according to claim 3 is characterized in that: described center gear (6) is 2: 1 with the transmitting ratio of satellite gear (7).
7. according to any described manual scissors-type jack in the claim 1～3, it is characterized in that: described inhibiting device is screw mandrel cover (10), and described screw mandrel cover (10) is fixed on the screw mandrel outside gear case (11) rear end (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205358937U CN201770443U (en) | 2010-09-14 | 2010-09-14 | Manual scissor-like jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205358937U CN201770443U (en) | 2010-09-14 | 2010-09-14 | Manual scissor-like jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201770443U true CN201770443U (en) | 2011-03-23 |
Family
ID=43750281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205358937U Expired - Fee Related CN201770443U (en) | 2010-09-14 | 2010-09-14 | Manual scissor-like jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201770443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318798A (en) * | 2013-07-11 | 2013-09-25 | 南通市通润汽车零部件有限公司 | Hinge-nut assembly used for scissor jack |
-
2010
- 2010-09-14 CN CN2010205358937U patent/CN201770443U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318798A (en) * | 2013-07-11 | 2013-09-25 | 南通市通润汽车零部件有限公司 | Hinge-nut assembly used for scissor jack |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20130914 |