CN2202124Y - Jack - Google Patents
Jack Download PDFInfo
- Publication number
- CN2202124Y CN2202124Y CN 94216283 CN94216283U CN2202124Y CN 2202124 Y CN2202124 Y CN 2202124Y CN 94216283 CN94216283 CN 94216283 CN 94216283 U CN94216283 U CN 94216283U CN 2202124 Y CN2202124 Y CN 2202124Y
- Authority
- CN
- China
- Prior art keywords
- barrel
- jack
- swivel nut
- worm
- worm wheel
- 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.)
- Expired - Lifetime
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- Gear Transmission (AREA)
Abstract
The utility model relates to a jack used for erecting and supporting heavy objects in a mechanical way. A jack which is formed by a threaded sleeve with a different hole, a threaded barrel assembled with the upper hole of the threaded sleeve, a lower threaded barrel assembled with the lower hole of the threaded sleeve, a limit threaded rod assembled between the upper threaded barrel and the lower threaded barrel and a driving mechanism arranged on the middle part of the threaded sleeve, is used as the basis of the utility model, wherein, the driving mechanism comprises a worm wheel with a ring convex part, a housing which can rotate is sheathed on the worm wheel, and a worm engaged with the worm wheel is installed on one side of the housing; besides, the worm wheel with a ring convex part is arranged on the outer margin of the middle part of the threaded sleeve. The driving mechanism provided with the worm and the worm wheel enables the jack to be suitable for the erection and the lift of the heavy object arranged on the depth of a narrow space, such as the erection and the lift of a small car.
Description
The utility model belongs to mechanical and rises weight jack class.
China Patent No. is 88203912.1 lumbering jack, be by different hole screw-casing, with swivel nut on hole assembling last barrel, with swivel nut under the following barrel of hole assembling, the driver train composition at the limit screw rod that assembles between barrel up and down, swivel nut middle part; Driver train is a ratchet and pawl arrangement, makes ratchet promote ratchet (swivel nut) by tommy bar and rotates, and barrel stretches out up and down respectively to prop up and rises weight up and down.The problem of this jack is: it is convenient inadequately to rise for propping up of small space depths weight.
The purpose of this utility model is: provide a kind of to the very grave thing Zhi Sheng of small space jack easily.
Technical measures of the present utility model are: based on by different hole swivel nut, and swivel nut on hole assembling last barrel, with swivel nut under the jack formed of driver train in the middle part of the following barrel that assembles of hole, the limit screw rod that assembles between barrel up and down, swivel nut; Driver train is: swivel nut middle part outer rim is a protruding worm gear of ring, is with a rotating housing on worm gear, and a side of housing is equipped with the worm screw that is meshed with worm gear.
Jack of the present utility model, owing to adopt the worm and gear driver train, plate commentaries on classics worm screw props up and rises weight a long way off, and convenient and practical good effect is arranged.
Accompanying drawing is a structural representation of the present utility model.
5 is different hole swivel nuts among the figure, and endoporus all has square thread up and down, with hole assembling on the swivel nut be to go up barrel 6, with being of hole assembling under the swivel nut barrel 1(base of holding concurrently down), about be equipped with limit screw rod 7 between barrel; The driver train at swivel nut 5 middle parts swivel nut 5 is rotated and promote up and down barrel 6 and 1 overhanging rise weight.The utility model changes original ratchet and pawl arrangement into worm-and-wheel gear, just swivel nut 5 middle part outer rims is processed into a protruding worm gear 3 of ring, and being with a rotating housing 4(2 on worm gear 3 is housing end plug); Side at housing 4 is equipped with the worm screw 8 that is meshed with worm gear 3, worm screw 8 axle heads can adopt square, to make worm gear 3(be swivel nut 5 at a distance being plugged on worm screw 8 axle heads with plate stem) rotate, make up and down barrel 6 and 1 overhanging with weight Zhi Sheng, up and down barrel 6 and 1 outer when reaching end position the boss of screw rod 7 touch mutually to limit with the bottom face of last barrel 6 and stretch.Jack of the present utility model is particularly suitable for the Zhi Sheng of small space depths weight, as the Zhi Sheng to miniature car.
Claims (1)
1, a kind of jack, by different hole swivel nut, and swivel nut on hole assembling last barrel, with swivel nut under driver train in the middle part of the following barrel that assembles of hole, the limit screw rod that assembles between barrel up and down, swivel nut form; It is characterized in that: driver train is:
A, swivel nut middle part outer rim are the protruding worm gears of ring, are with a rotating housing on worm gear;
B, the worm screw that is meshed with worm gear is housed in a side of housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216283 CN2202124Y (en) | 1994-07-03 | 1994-07-03 | Jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94216283 CN2202124Y (en) | 1994-07-03 | 1994-07-03 | Jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2202124Y true CN2202124Y (en) | 1995-06-28 |
Family
ID=33832027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94216283 Expired - Lifetime CN2202124Y (en) | 1994-07-03 | 1994-07-03 | Jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2202124Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730596A (en) * | 2012-06-25 | 2012-10-17 | 湖北三江航天万峰科技发展有限公司 | Small-stroke and large-torque automatic jacking mechanism |
| CN103588139A (en) * | 2013-11-22 | 2014-02-19 | 宁波海迈克动力科技有限公司 | Compact type mechanical lifting mechanism for assembling line |
-
1994
- 1994-07-03 CN CN 94216283 patent/CN2202124Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730596A (en) * | 2012-06-25 | 2012-10-17 | 湖北三江航天万峰科技发展有限公司 | Small-stroke and large-torque automatic jacking mechanism |
| CN102730596B (en) * | 2012-06-25 | 2014-12-31 | 湖北三江航天万峰科技发展有限公司 | Small-stroke and large-torque automatic jacking mechanism |
| CN103588139A (en) * | 2013-11-22 | 2014-02-19 | 宁波海迈克动力科技有限公司 | Compact type mechanical lifting mechanism for assembling line |
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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 | ||
| CX01 | Expiry of patent term |