CN102642789A - Hand-operating lifting jack - Google Patents
Hand-operating lifting jack Download PDFInfo
- Publication number
- CN102642789A CN102642789A CN2011100421609A CN201110042160A CN102642789A CN 102642789 A CN102642789 A CN 102642789A CN 2011100421609 A CN2011100421609 A CN 2011100421609A CN 201110042160 A CN201110042160 A CN 201110042160A CN 102642789 A CN102642789 A CN 102642789A
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- CN
- China
- Prior art keywords
- transmission gear
- hand
- pump case
- pump shell
- gear
- 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.)
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Abstract
The invention relates to a hand-operating lifting jack which comprises a pump shell and a spiral rod lifting element, wherein the outer side of the pump shell is provided with an arm hole; a swing arm is connected with a power gear at the inner side of the pump shell through an arm hole; the power gear and a transmission gear in the pump shell are meshed; the transmission gear is provided with an internal thread which is matched with an external thread on the spiral rod lifting element; the pump shell is internally provided with a self-locking baffle plate which can lock the spiral rod lifting element and also can fix the transmission gear; the swing arm drives the power gear to rotate; the power gear drives the transmission gear to rotate; and the transmission gear controls the spiral rod lifting element to move up and down. The hand-operating lifting jack provided by the invention is simple in structure, can bear greater load, has a self-locking function, can ascend and descend through hand cranking, and is time-saving and labor-saving.
Description
Technical field
The present invention relates to a kind of jack, specifically, the present invention relates to a kind of hand jack.
Background technology
Jack as the machine attention service tools by extensive utilization; The jack of being sold on the market now mainly be divided three classes rank-and-pinion jack, lifting screw and hydraulic jack, rank-and-pinion jack and lifting screw hoisting capacity are little, and operation is required great effort; And there is not auto-lock function; The lifting of hydraulic jack is highly limited, and lifting velocity is slow, and price comparison is expensive.
Summary of the invention
Technical matters to be solved by this invention provide a kind of can self-locking and the hand jack of fast lifting.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme.
This hand jack comprises basic pump case and screw rod top act part, on the pump case side, has an arm hole and is provided with rocking arm in the outside of pump case, and the power gear inboard with jack interconnects, and can shake the power gear in the jack.
Pass to the screw rod top for the application force that makes power gear and lift part, be provided with transmission gear in the said pump case, and be enclosed within on the screw rod top act part, transmission gear and power gear are meshing with each other.
Can relative motion in order to make screw rod top lift part and transmission gear, said screw rod top act part outside is an outside thread all, and transmission gear is provided with negative thread, and internal and external threads can cooperatively interact.
Can pin in order transmission gear can be fixed and to let the screw rod top lift part, be provided with the self-locking dividing plate in the said pump case.
Compared with prior art, advantage of the present invention is: simple in structure, can bear bigger load-carrying, and auto-lock function is arranged, go up and down through hand control, time saving and energy saving.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is further specified.
Fig. 1 is an inner structure scheme drawing of the present invention;
1, part 3, power gear 4, Rocker arm 5, transmission gear 6, self-locking dividing plate are lifted in pump case 2, screw rod top.
The specific embodiment:
Describe the present invention below in conjunction with the accompanying drawing and the specific embodiment:
A kind of hand jack inner structure shown in Fig. 1 comprises pump case 1 and screw rod top act part 2, is provided with arm hole and Rocker arm 4 in the outside of pump case 1, and Rocker arm 4 is contained in the arm hole, is provided with power gear 3 in pump case 1 inside, and power gear 3 is connected with Rocker arm 4 through the arm hole; Also being provided with transmission gear 5 in the pump case 1 is meshing with each other with power gear 3; The outside thread that transmission gear 5 is provided with on negative thread and the pump case 1 inner screw top act part 2 cooperatively interacts; In pump case 1, also be provided with self-locking dividing plate 6, can pin the screw rod top and lift part 2 and fix transmission gear 5 simultaneously; Shaking Rocker arm 4 can make power gear 3 rotate; Power gear 3 drives transmission gears 5, and transmission gear 5 makes the screw rod top that is mated lift part 2 through negative thread and can move up and down, reach desired height after; Self-locking dividing plate 6 in the pump case 1 can be lifted part 2 with the screw rod top and pin, and it is fixed.
It is emphasized that: above only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (6)
1. a hand jack comprises pump case (1) and screw rod top act part (2) composition, it is characterized in that, in the arm hole of said pump case (1) side rocking arm (4) is housed.
2. hand jack according to claim 1 is characterized in that, is provided with power gear (3) in the said pump case (1).
3. hand jack according to claim 1 is characterized in that, is provided with transmission gear (5) in the said pump case (1).
4. hand jack according to claim 1 is characterized in that, is provided with self-locking dividing plate (6) in the said pump case (1).
5. hand jack according to claim 3 is characterized in that, said transmission gear (5) is provided with negative thread.
6. hand jack according to claim 1 is characterized in that, the outer outside thread that all is made as of part (2) is lifted on said screw rod top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100421609A CN102642789A (en) | 2011-02-22 | 2011-02-22 | Hand-operating lifting jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100421609A CN102642789A (en) | 2011-02-22 | 2011-02-22 | Hand-operating lifting jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102642789A true CN102642789A (en) | 2012-08-22 |
Family
ID=46655922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100421609A Pending CN102642789A (en) | 2011-02-22 | 2011-02-22 | Hand-operating lifting jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102642789A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193180A (en) * | 2013-04-02 | 2013-07-10 | 红塔烟草(集团)有限责任公司 | Scissor jack trolley |
| CN103496653A (en) * | 2013-09-24 | 2014-01-08 | 常熟市永固起重设备安装工程有限公司 | Rocking handle type jack |
| CN104528578A (en) * | 2014-12-11 | 2015-04-22 | 赵宽学 | Spiral top extension device with limit device |
| CN110359134A (en) * | 2019-07-17 | 2019-10-22 | 浙江绿树毛纺织有限公司 | A kind of combing machine for fur goes out strip device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1396258A (en) * | 1920-08-13 | 1921-11-08 | Coryell John | Multiple-screw jack |
| US1422279A (en) * | 1920-04-27 | 1922-07-11 | John M Lydice | Jackscrew |
| CN2234427Y (en) * | 1995-03-08 | 1996-09-04 | 刘平安 | Bevel gear screw jack |
| CN2556181Y (en) * | 2002-06-17 | 2003-06-18 | 蒋五一 | Variable-speed jacking mechanism |
| CN201980929U (en) * | 2011-02-22 | 2011-09-21 | 吴江市松陵镇明博精密机械厂 | Hand-operated jack |
-
2011
- 2011-02-22 CN CN2011100421609A patent/CN102642789A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1422279A (en) * | 1920-04-27 | 1922-07-11 | John M Lydice | Jackscrew |
| US1396258A (en) * | 1920-08-13 | 1921-11-08 | Coryell John | Multiple-screw jack |
| CN2234427Y (en) * | 1995-03-08 | 1996-09-04 | 刘平安 | Bevel gear screw jack |
| CN2556181Y (en) * | 2002-06-17 | 2003-06-18 | 蒋五一 | Variable-speed jacking mechanism |
| CN201980929U (en) * | 2011-02-22 | 2011-09-21 | 吴江市松陵镇明博精密机械厂 | Hand-operated jack |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193180A (en) * | 2013-04-02 | 2013-07-10 | 红塔烟草(集团)有限责任公司 | Scissor jack trolley |
| CN103496653A (en) * | 2013-09-24 | 2014-01-08 | 常熟市永固起重设备安装工程有限公司 | Rocking handle type jack |
| CN104528578A (en) * | 2014-12-11 | 2015-04-22 | 赵宽学 | Spiral top extension device with limit device |
| CN110359134A (en) * | 2019-07-17 | 2019-10-22 | 浙江绿树毛纺织有限公司 | A kind of combing machine for fur goes out strip device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |