CN201848805U - Portable labor-saving wrench for tyre screws - Google Patents
Portable labor-saving wrench for tyre screws Download PDFInfo
- Publication number
- CN201848805U CN201848805U CN2010202448626U CN201020244862U CN201848805U CN 201848805 U CN201848805 U CN 201848805U CN 2010202448626 U CN2010202448626 U CN 2010202448626U CN 201020244862 U CN201020244862 U CN 201020244862U CN 201848805 U CN201848805 U CN 201848805U
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- CN
- China
- Prior art keywords
- gear
- central
- planet carrier
- planetary gears
- rotate
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- Expired - Fee Related
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Abstract
The utility model relates to a portable labor-saving wrench for tyre screws. In a housing, a central shaft is in key connection with a central gear, the central gear is connected with a large gear in planetary gears, a small gear in the planetary gears is connected with an internal gear of the housing, and the planetary gears are in shaft connection with planet carrier holes. When the portable labor-saving wrench for the tyre screws works, a planet carrier is connected with a connecting sleeve, a cranking handle is connected with the central shaft, when the cranking handle is rotated, the central shaft can be rotated accordingly, the central gear is driven to rotate, the central gear can further drive the planetary gears to rotate by meshing with the large gear in the planetary gears, the small gear in the planetary gears is meshed with the internal gear of the housing, and the housing can not rotate due to artificial fixation, so that when the three planetary gears rotate around the internal gear of the housing, the planet carrier can be driven to rotate, and the planet carrier can drive the connecting sleeve to rotate for achieving the purpose of replacing a tyre easily.
Description
Affiliated technical field
The utility model relates to a kind of mechanical wrench device that can turn the screw degree of tightness, especially in the way doughnut screw is turned and the labour-saving spanner.
Background technology
At present, known portable vehicular doughnut screw wrench all is easy box spanner, it is made up of bush connecting rod and boosting-rod, the labour-saving degree is by the decision of the length of boosting-rod, because hand GPRS bush connecting rod when a people operates, the another hand will be held boosting-rod, makes the boosting-rod limited length to cause spanner labour-saving degree not enough.When automobile was on the way blown out, crowd that strength is little and women crowd just can not well normally use when using this box spanner, do not reach result of use, cause existing potential safety hazard.
Summary of the invention
In order to overcome the limited deficiency of the laborsaving degree of existing box spanner, the utility model provides a kind of portable tire screw labour-saving spanner, this labour-saving spanner can obtain bigger operation torque with less power, and safety turns tire screw easily, reaches the purpose of re-type.
The technical scheme that its technical problem that solves the utility model adopts is: in shell, planet carrier is axis hole with shell, central shaft with planet carrier and is connected, and can rotate each other; Three planetary gears are installed in respectively on three planet pins of planet carrier, and can relatively rotate; The internal gear of three planetary pinion end and shell carries out the internal gear engagement, and three planetary gear wheel ends carry out external gear with central gear and mesh; Central gear is connected with the center axle key; Central shaft one end is that axis hole is connected with planet carrier, and the other end also is that axis hole is connected with end cap central bore, passes end cap central bore rear axle termination and is connected with the square hole of crank handle; End cap and shell are connected and fixed with screw; The stub end of branch sleeve is connected with the planet carrier outer-hexagonal head that stretches out shell.Its principle is the operation principle according to " bottle gouard moved by hands ": when the people rotates crank handle, central shaft rotates thereupon, the drive central gear rotates, central gear rotates by driving planetary gear with planetary gear wheel engagement, planetary pinion and the engagement of shell internal gear, shell is because artificial fixing can not be rotated, so rotate when three planetary gears just drive planet carrier when the shell internal gear rotates, the outer-hexagonal head of planet carrier just drives branch sleeve and rotates; Because the relation of planet circular system gearratio, branch sleeve can obtain than the big a lot of moments of torsion doubly of crank handle, thereby branch sleeve is unscrewed more easily and tightened tire screw, reach the purpose of safely light re-type.
The beneficial effects of the utility model are, can just obtain bigger operation torque with less power, easily re-type of safety, and simple in structure, volume is little, and is in light weight, is easy to carry.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the front view and the side view of planet carrier structure.
1. planet pins among the figure, 2. collar groove, 3. outer-hexagonal head, 4. planet carrier hole.
Fig. 2 is front view, side view and the cutaway view of center spindle structure.
5. keyways among the figure, 6. quadrangular head,
Fig. 3 is the front view and the side view of branch sleeve structure.
Fig. 4 is the front view and the side view of planetary gear construction.
7. planetary gear holes among the figure.
Fig. 5 is the front view and the side view of central gear structure.
Fig. 6 is the front view and the side view of crank handle structure.
8. handles, 9. square hole among the figure.
Fig. 7 is the front view and the side view of shell mechanism.
10. screw holes among the figure, 11. shell internal gears.
Fig. 8 is the front view and the side view of end cover structure.
12. small sircle holes among the figure, 13. end cap central bore.
Fig. 9 is that portable tire screw labour-saving spanner uses the assembling schematic diagram.
14. branch sleeves among the figure, 15. shells, 16. planet carriers, 17. planetary gears, 18. collars, 19. crank handles, 20. central shafts, 21. central gears, 22. keys, 23. end caps, 24. bolts.
Specific embodiments
In Fig. 1, planet carrier (16) has three planet pins (1), planetary gear (17) is installed in respectively that planet pin (1) is gone up and with collar (18) axial restraint, planetary gear (17) can rotate relative to planet pin (1), the outer-hexagonal head (3) of planet carrier (16) is and branch sleeve (14) assembling that the end that planet carrier hole (4) are used for central shaft (20) penetrates.
In Fig. 2, central gear (21) is installed on the keyway (5) of central shaft (20) and locates, and fixing with key (22), the quadrangular head (6) of central shaft (20) and the assembling of the square hole (9) of crank handle (19), central shaft (20) also rotates thereupon when consequently rotating crank handle (19).
In Fig. 3, branch sleeve (14) two ends all are interior hexagonal shapes, the assembling of the outer-hexagonal head (3) of an end and planet carrier (16), and the other end and the assembling of doughnut screw are so that can turn tire screw during branch sleeve (14) rotation.
In Fig. 4, planetary gear (17) has two reducing external gears, small-diameter gear and shell internal gear (11) engagement, large diameter gear and central gear (21) engagement, planet pin (1) assembling of planetary gear hole (7) and planet carrier (16).
In Fig. 5, central gear (21) is assemblied in central shaft (20) and goes up and fix with key (22), rotates with the rotation of central shaft (20), and central gear (21) meshes with the large diameter gear end of planetary gear (17).
In Fig. 6, crank handle (19) is gone up design handle (8), is convenient to hold rotate crank handle (19), and square hole (9) assembles with the quadrangular head (6) of central shaft (20).
In Fig. 7, shell (15) is that ladder is cylindric, in be provided with internal gear (11), the small-diameter gear end engagement of shell internal gear (11) and planetary gear (17), screw hole (10) is the hole that is linked and packed of the bolt (24) of fixedly end cap (23).
In Fig. 8, the usefulness that the small sircle hole (12) on the end cap (23) is used to pass bolt (24), end cap central bore (13) is the hole of passing of central shaft (20).
In Fig. 9, a central shaft (20), a central gear (21), three planetary gears (17) and a planet carrier (16) all are installed in the shell (15), central shaft (20) is connected with key (22) key with central gear (21), and end cap (23) is fixed on the shell (15) with bolt (24); In use, crank handle (19) is connected with central shaft (20) by square hole (9), branch sleeve (14) is connected with the outer-hexagonal head (3) of planet carrier (16), shake crank handle (19), central shaft (20) rotates thereupon, driving central gear (21) rotates, central gear (21) drives planetary gear (17) by the gear wheel engagement with planetary gear (17) and rotates, the pinion of planetary gear (17) and shell internal gear (11) engagement, shell is because artificial fixing can not the rotation, so rotate when three planetary gears (17) just drive planet carrier (16) when shell internal gear (11) rotates, the outer-hexagonal head (3) of planet carrier (16) just drives branch sleeve (14) and rotates; Because the relation of planet circular system gearratio, branch sleeve (14) can obtain than the big a lot of moments of torsion doubly of crank handle (19), thereby branch sleeve (14) is unscrewed more easily and tightened tire screw, reach the purpose of safely light re-type.
Claims (3)
1. portable tire screw labour-saving spanner, it is to be connected by bush connecting rod and boosting-rod to form, it is characterized in that: crank handle is connected with central shaft, central shaft is connected with central gear, central gear is connected with planetary gear wheel, planetary pinion is connected with the shell internal gear, and planetary gear is connected with planet carrier hole axle, and planet carrier is connected with branch sleeve.
2. portable tire screw labour-saving spanner according to claim 1, it is characterized in that: central gear is connected with the center axle key, planetary gear is the different reducing gear of two ends diameter, planet carrier has three planet pins, the planetary gear axis of planet carrier and sun gear shaft line parallel, the planet carrier center of rotation overlaps with the central gear axle center, and shell is that ladder is cylindric.
3. portable tire screw labour-saving spanner according to claim 1 is characterized in that: central gear is one, and planetary gear is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202448626U CN201848805U (en) | 2010-07-02 | 2010-07-02 | Portable labor-saving wrench for tyre screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202448626U CN201848805U (en) | 2010-07-02 | 2010-07-02 | Portable labor-saving wrench for tyre screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201848805U true CN201848805U (en) | 2011-06-01 |
Family
ID=44091216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202448626U Expired - Fee Related CN201848805U (en) | 2010-07-02 | 2010-07-02 | Portable labor-saving wrench for tyre screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201848805U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385976A (en) * | 2018-04-19 | 2019-10-29 | 舍弗勒技术股份两合公司 | Electric bridge |
| CN110842840A (en) * | 2019-12-30 | 2020-02-28 | 贵州永昌福科技有限公司 | Labor-saving quick wrench |
| CN111590309A (en) * | 2019-02-20 | 2020-08-28 | 上海汽车变速器有限公司 | Bolt dismounting torque increasing device |
-
2010
- 2010-07-02 CN CN2010202448626U patent/CN201848805U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385976A (en) * | 2018-04-19 | 2019-10-29 | 舍弗勒技术股份两合公司 | Electric bridge |
| CN111590309A (en) * | 2019-02-20 | 2020-08-28 | 上海汽车变速器有限公司 | Bolt dismounting torque increasing device |
| CN110842840A (en) * | 2019-12-30 | 2020-02-28 | 贵州永昌福科技有限公司 | Labor-saving quick wrench |
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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: 20110601 Termination date: 20130702 |