CN201980929U - Hand-operated jack - Google Patents
Hand-operated jack Download PDFInfo
- Publication number
- CN201980929U CN201980929U CN2011200437763U CN201120043776U CN201980929U CN 201980929 U CN201980929 U CN 201980929U CN 2011200437763 U CN2011200437763 U CN 2011200437763U CN 201120043776 U CN201120043776 U CN 201120043776U CN 201980929 U CN201980929 U CN 201980929U
- Authority
- CN
- China
- Prior art keywords
- hand
- pump case
- pump shell
- screw
- driving 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.)
- Expired - Fee Related
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model relates to a hand-operated jack, which comprises a pump shell and a screw-jacking part, wherein an arm hole is arranged at the outer side of the pump shell, a rocking arm and a power gear at the inner side of the pump shell are mutually connected through the arm hole, the power gear and a driving gear inside the pump shell are mutually engaged, an inner thread is arranged on the driving gear and can be mutually matched with an outer thread on the screw-jacking part, a self-locking baffle plate is arranged in the pump shell, the screw-jacking part can be locked, and the driving gear can also be fixed; and the power gear is driven to rotate by the rocking arm, the driving gear is driven to rotate by the power gear, and the driving gear is used for controlling the upward and downward movement of the screw-jacking part. The hand-operated jack has a simple structure, can be used for bearing a larger load, has a self-locking function and is controlled to ascend and descend through hand rocking, and the time and labor are saved.
Description
Technical field
The utility model relates to a kind of jack, and specifically, the utility model relates to a kind of hand jack.
Background technology
Jack is extensively used as the machine attention service tools, 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, the operation 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 problem to be solved in the utility model 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 utility model is achieved through the following technical solutions.
This hand jack comprises that basic pump case and screw rod top lifts part, has an arm hole and be provided with rocking arm in the outside of pump case on the pump case side, interconnects with the power gear of jack inboard, 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 described 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, it is outside thread all that the part outside is lifted on described screw rod top, and transmission gear is provided with negative thread, and internal and external threads can cooperatively interact.
Can pin for transmission gear can being fixed and can allowing the screw rod top lift part, be provided with the self-locking dividing plate in the described pump case.
Compared with prior art, the utility model has the advantages that: simple in structure, can bear bigger load-carrying, auto-lock function is arranged, by hand control lifting, time saving and energy saving.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the utility model inner structure scheme drawing;
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:
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in detail:
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 by 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 by 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 the screw rod top part 2 and pin, and it is fixed.
It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (6)
1. a hand jack is lifted part (2) by pump case (1) and screw rod top and is formed, and it is characterized in that, in the arm hole of described 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 described pump case (1).
3. hand jack according to claim 1 is characterized in that, is provided with transmission gear (5) in the described pump case (1).
4. hand jack according to claim 1 is characterized in that, is provided with self-locking dividing plate (6) in the described pump case (1).
5. hand jack according to claim 3 is characterized in that, described 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 described screw rod top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200437763U CN201980929U (en) | 2011-02-22 | 2011-02-22 | Hand-operated jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200437763U CN201980929U (en) | 2011-02-22 | 2011-02-22 | Hand-operated jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201980929U true CN201980929U (en) | 2011-09-21 |
Family
ID=44608393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200437763U Expired - Fee Related CN201980929U (en) | 2011-02-22 | 2011-02-22 | Hand-operated jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201980929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642789A (en) * | 2011-02-22 | 2012-08-22 | 吴江市松陵镇明博精密机械厂 | Hand-operating lifting jack |
-
2011
- 2011-02-22 CN CN2011200437763U patent/CN201980929U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642789A (en) * | 2011-02-22 | 2012-08-22 | 吴江市松陵镇明博精密机械厂 | Hand-operating lifting 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: 20110921 Termination date: 20120222 |