CN205226158U - Ratchet wheel mechanism - Google Patents
Ratchet wheel mechanism Download PDFInfo
- Publication number
- CN205226158U CN205226158U CN201520838153.3U CN201520838153U CN205226158U CN 205226158 U CN205226158 U CN 205226158U CN 201520838153 U CN201520838153 U CN 201520838153U CN 205226158 U CN205226158 U CN 205226158U
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- China
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- roulette wheel
- swiveling wheel
- inverted orientation
- orientation block
- sawtooth
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Abstract
The utility model relates to a can realize the ratchet wheel mechanism that the scanner upper cover is static and progressively descend, including first swiveling wheel, the second swiveling wheel, and rotation axis, the rotation axis passes first swiveling wheel in proper order, the second swiveling wheel, rotation axis and first swiveling wheel fixed connection, circular inseparable distribution is personally submitted to one of the first swiveling wheel of second swiveling wheel orientation has a plurality of sawtooth, first swiveling wheel is equipped with at least one reverse locating piece towards the one side of second swiveling wheel, first swiveling wheel still includes the torsional spring, reverse locating piece and first swiveling wheel swing joint, reverse locating piece one end and torsional spring fixed connection, the other end of reverse locating piece is equipped with with sawtooth matched with protrudingly.
Description
Technical field
The utility model relates to a kind of scanner components, particularly relates to a kind of ratchet mechanism.
Background technique
At present, top cover lifting mechanism many employings gear of the scanner on market realizes rising and the decline of upper cover, and when gear rotates forward the rising of drive upper cover, due to the weight of upper cover and the effect of gear, upper cover can realize progressively rising; But when needs upper cover is static or progressively decline, the own wt of upper cover can reverse by driven gear, and upper cover can freely fall, and is difficult to realize the static of upper cover or progressively decline, brings trouble to paper feed process.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of ratchet mechanism, make it have more value in industry.
Model utility content
For solving the problems of the technologies described above, the purpose of this utility model is to provide and a kind ofly can realizes the ratchet mechanism that scanner upper cover is static and progressively decline.
Ratchet mechanism of the present utility model, comprise the first roulette wheel, second roulette wheel, and running shaft, described running shaft is successively through the first roulette wheel, second roulette wheel, described running shaft is fixedly connected with the first roulette wheel, described second roulette wheel has some sawtooth towards the rounded tight distribution of one side of the first roulette wheel, described first roulette wheel is provided with at least one inverted orientation block towards the one side of the second roulette wheel, described first roulette wheel also comprises torsion spring, described inverted orientation block is flexibly connected with the first roulette wheel, described inverted orientation block one end is fixedly connected with torsion spring, the other end of described inverted orientation block is provided with the projection matched with sawtooth.
Further, the relative first roulette wheel radial skew of described sawtooth is arranged.
Further, described inverted orientation block has four.
Further, described inverted orientation block and the first roulette wheel are rotationally connected.
Further, described inverted orientation block is evenly distributed on the first roulette wheel.
By such scheme, the utility model at least has the following advantages:
The utility model is by the first roulette wheel, the cooperatively interacting of the second roulette wheel, and the cooperation of inverted orientation block, sawtooth and torsion spring, can effectively scanner upper cover is static or progressively decline, and facilitates carrying out smoothly of scanning process.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model ratchet mechanism;
Fig. 2 is the structural representation of the second roulette wheel in the utility model;
Fig. 3 is the structural representation of the first roulette wheel in the utility model;
Fig. 4 is the structural representation that in the utility model, the first roulette wheel matches with the second roulette wheel;
Fig. 5 is the utility model application structural representation on the scanner.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
See Fig. 1 ~ 5, a kind of ratchet mechanism described in the utility model one preferred embodiment, comprise the first roulette wheel 1, second roulette wheel 2, and running shaft 3, running shaft 3 is successively through the first roulette wheel 1, second roulette wheel 2, running shaft 3 is fixedly connected with the first roulette wheel 1, second roulette wheel 2 has some sawtooth 6 towards the rounded tight distribution of one side of the first roulette wheel 1, first roulette wheel 1 is provided with at least one inverted orientation block 4 towards the one side of the second roulette wheel 2, first roulette wheel 1 also comprises torsion spring 5, inverted orientation block 4 is flexibly connected with the first roulette wheel 1, inverted orientation block 4 one end is fixedly connected with torsion spring 5, the other end of inverted orientation block 4 is provided with the projection 7 matched with sawtooth 6, like this, when the first roulette wheel driven rotary axle rotates forward, the inverted orientation block of the first roulette wheel can not block the second roulette wheel, and the second roulette wheel can not rotate, when the first roulette wheel driven rotary axle rotates backward, the projection that the inverted orientation block of the first roulette wheel opens under the effect of torsion spring can block the sawtooth of the second roulette wheel, and the projection of the second roulette wheel opposite side contacts with the fixed block 8 on scanner fixed plate 9, fixed block is tightly pushed down, the second roulette wheel is prevented to rotate backward, and then stop oppositely arbitrarily rotating of the first roulette wheel, effective scanner upper cover static or progressively decline.
Relative first roulette wheel 1 radial skew of sawtooth 6 is arranged; Like this, the projection on inverted orientation block is more tight with coordinating of sawtooth after opening under the effect of torsion spring, and active force is more stable.
Inverted orientation block 4 has four; It should be noted that, inverted orientation block is not limited to four, can be one, also can be 2 or 3, even 5 etc., the sawtooth of the second roulette wheel can be blocked as long as meet.
Inverted orientation block 4 and the first roulette wheel 1 are rotationally connected; Like this, inverted orientation block can rotate relative to the first roulette wheel, until the position of matching with the sawtooth of the second roulette wheel can stop.
Inverted orientation block 4 is evenly distributed on the first roulette wheel 1; Like this, the active force during jigsaw fit of inverted orientation block and the second roulette wheel is evenly distributed on the second roulette wheel, and the second roulette wheel uniform force is not yielding, longer service life.
The above is only preferred implementation of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (5)
1. ratchet mechanism, it is characterized in that: comprise the first roulette wheel, the second roulette wheel and running shaft, described running shaft is successively through the first roulette wheel, the second roulette wheel, described running shaft is fixedly connected with the first roulette wheel, described second roulette wheel has some sawtooth towards the rounded tight distribution of one side of the first roulette wheel
Described first roulette wheel is provided with at least one inverted orientation block towards the one side of the second roulette wheel, described first roulette wheel also comprises torsion spring, described inverted orientation block is flexibly connected with the first roulette wheel, described inverted orientation block one end is fixedly connected with torsion spring, and the other end of described inverted orientation block is provided with the projection matched with sawtooth.
2. ratchet mechanism according to claim 1, is characterized in that: the relative first roulette wheel radial skew of described sawtooth is arranged.
3. ratchet mechanism according to claim 1, is characterized in that: described inverted orientation block has four.
4. the ratchet mechanism according to claim 1 or 3, is characterized in that: described inverted orientation block and the first roulette wheel are rotationally connected.
5. the ratchet mechanism according to claim 1 or 3, is characterized in that: described inverted orientation block is evenly distributed on the first roulette wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838153.3U CN205226158U (en) | 2015-10-27 | 2015-10-27 | Ratchet wheel mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838153.3U CN205226158U (en) | 2015-10-27 | 2015-10-27 | Ratchet wheel mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205226158U true CN205226158U (en) | 2016-05-11 |
Family
ID=55901226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520838153.3U Active CN205226158U (en) | 2015-10-27 | 2015-10-27 | Ratchet wheel mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205226158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587317A (en) * | 2016-07-08 | 2018-01-16 | 无锡小天鹅股份有限公司 | Clutch and there is its washing machine |
-
2015
- 2015-10-27 CN CN201520838153.3U patent/CN205226158U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107587317A (en) * | 2016-07-08 | 2018-01-16 | 无锡小天鹅股份有限公司 | Clutch and there is its washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215123 Jiangsu Province, Suzhou City Industrial Park East Road No. 9 East Industrial Building 39 square Patentee after: SUZHOU GELAIBO SCAN CO., LTD. Address before: 215123 Jiangsu Province, Suzhou City Industrial Park East Road No. 9 East Industrial Building 39 square Patentee before: Colortrac imaging system (Suzhou) Co. Ltd. |