CN203100672U - Stroke detecting mechanism of lifting study table - Google Patents
Stroke detecting mechanism of lifting study table Download PDFInfo
- Publication number
- CN203100672U CN203100672U CN 201320079544 CN201320079544U CN203100672U CN 203100672 U CN203100672 U CN 203100672U CN 201320079544 CN201320079544 CN 201320079544 CN 201320079544 U CN201320079544 U CN 201320079544U CN 203100672 U CN203100672 U CN 203100672U
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- lifting
- learning desk
- lifting shaft
- gear
- desktop
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Abstract
The utility model discloses a stroke detecting mechanism of a lifting study table. The stroke detecting mechanism comprises a lifting motor, a speed deceleration mechanism and a lifting shaft, wherein the lifting motor is arranged on a body of the lifting study table and connected with the speed deceleration mechanism; the speed deceleration mechanism is connected with the lifting shaft; the lifting shaft is connected with table legs of the study table; the lifting shaft can drive a table top of the study table to lift when rotating; one-stage or two-stage speed deceleration gears are fixed on the lifting shaft; a last-stage gear of the speed deceleration gears is provided with a potentiometer; and the rotation number of the potentiometer is proportional to the lifting stroke of the table top. According to the stroke detecting mechanism of the lifting study table, the speed deceleration gears are utilized for corresponding to the height of the lifting motor, and the rotation number of turns of the last-stage gear of the speed deceleration gears is detected by utilizing the potentiometer, therefore, the instant height of the table top can be given when the lifting motor stops at any height, and the stroke detecting mechanism is humane and easier to adjust relative to the prior art.
Description
Technical field
The utility model relates to the schooling apparatus field, particularly a kind of stroke detection mechanism of lifting learning desk.
Background technology
Learning desk is used in school classroom or the family more, is a kind of schooling apparatus that student and literal worker use always.At present, in most learning desk, desktop is fixed mostly, and the height of desktop can not regulate, and is so in use very inconvenient, because of table not science is set when especially the pupil uses, easily produce adverse consequencess such as hunchback or myopia, desire to be adjusted to suitable seat appearance, can only so just increase the user's of family the burden and the personnel's that run a school cost by changing the height of chair.
Recently, the adjustable lifting learning desk of multiple height of table top has appearred in the market.The stroke detection of the desktop elevating mechanism of lifting learning desk commonly used is to utilize the Hall detection mode at present, the desktop elevating mechanism structure of Hall detection mode is referring to Fig. 1 and Fig. 2, it comprises the lifting motor 1 that locks on tables' baffle plate, this lifting motor 1 carries reducer casing 2, be fixed on the Hall check-out console 3 on above-mentioned reducer casing 2 case lids, be fixed on two Hall elements 4 on the Hall check-out console 3, be enclosed within the lifting shaft 5 on the reducer casing 2, this lifting shaft 5 passes Hall check-out console 3 centers and two ends are fixed on the lifting table leg, and be located on the lifting shaft 5 and with the magnet 6 of Hall check-out console 3 coaxial settings.The principle of work of this desktop elevating mechanism and stroke detection is: lifting motor 1 rotates, and by after reducer casing 2 reinforcings that carry, the lifting shaft 5 that drive is enclosed within on the reducer casing 2 rotates, lifting shaft 5 two ends all are connected with the worm and gear reverse mechanism, wherein worm gear set is located on the lifting shaft 5, the worm screw lower end is fixed in the table leg, thereby desktop under lifting motor 1 drives with regard to liftable, in this process, magnet 6 fixing on the lifting shaft 5 also rotates in the lump, the counting of on Hall check-out console 3, turn-taking, uppermost position in fig-ure of worm screw and upper/lower positions respectively by limit switch to the motor feedback information, it is stopped operating.
Because above-mentioned Hall detection mode can only detect the number of turns that motor rotates, the corresponding height of table top of the number of turns that this motor rotates, but because this detection mode can only detect the output number of turns in the lifting process, in lifting process if pause, stroke detection mechanism then can't provide the instant height of desktop, therefore need limit switch be set respectively at highest point and the lowest part that the desktop lifting presets, be used to the extreme higher position and the extreme lower position of indicating desktop to reach.
The utility model content
The utility model provides a kind of stroke detection mechanism of lifting learning desk, can't provide the defective of the instant height of desktop when occurring pausing in lifting process with the stroke detection mechanism that solves existing lifting learning desk.
The technical solution of the utility model is as follows:
A kind of stroke detection mechanism of lifting learning desk, comprise lifting motor, reducing gear, lifting shaft, described lifting motor is located on the lifting learning desk body and with described reducing gear and is connected, described reducing gear is connected with described lifting shaft, described lifting shaft is connected with the learning desk table leg, lifting shaft rotates can drive the lifting of learning desk desktop, be fixed with one-level or double reduction gearing on the described lifting shaft, the final stage gear of described reduction gearing is provided with potentiometer, and the lifting travel of the described potentiometer rotation number of turns and desktop is proportional.
Preferably, described reducing gear is a reducer casing.Reducer casing is a reducing gear commonly used, conveniently is easy to get, and is easy for installation.
Preferably, described reducer casing is that lifting motor carries reducer casing.Lifting motor carries reducer casing makes device therefor still less, simple in structure, easy for installation.
Preferably, described lifting shaft two ends and learning desk junction are respectively equipped with the Rotation With Changing of lifting shaft to the reverse mechanism for the elevating movement of learning desk desktop.
Preferably, described reverse mechanism is a worm and gear, and described worm gear set is located on the described lifting shaft, and the lower end of described worm screw is fixed in the table leg.
Preferably, described worm screw is respectively equipped with the lifting table limit switch in its uppermost position in fig-ure and upper/lower positions.
Compared with prior art, the beneficial effects of the utility model are as follows:
Lifting learning desk stroke detection of the present utility model mechanism utilizes the height of the corresponding lifting motor of reduction gearing, and detect the revolution of the final stage gear of reduction gearing with potentiometer, thereby can when stopping, any height can both provide the instant height of desktop at lifting motor, the easier adjusting of human nature of prior art relatively.
Description of drawings
Fig. 1 is the structural representation of the Hall detection mode desktop elevating mechanism of learning desk in the prior art;
Fig. 2 is the structural representation that Hall detection mode desktop elevating mechanism among Fig. 1 is amplified;
Fig. 3 is the structural representation of stroke detection mechanism of the lifting learning desk of the utility model embodiment one;
Fig. 4 is the structure enlarged diagram of stroke detection mechanism of the lifting learning desk of the utility model embodiment one.
Embodiment
Below by preferred embodiment the technical solution of the utility model is described, but following embodiment can not limit protection domain of the present utility model.
Embodiment one
Referring to Fig. 3 and Fig. 4, the stroke detection mechanism of lifting learning desk of the present utility model, comprise lifting motor 1, reducing gear and lifting shaft 5, in the present embodiment, lifting motor 1 is located on the lifting learning desk body, locks in usually on tables' baffle plate, can certainly be arranged on other any suitable positions of learning desk body, not do qualification herein; Preferably, reducing gear is a reducer casing 2, lifting motor 1 is connected with reducer casing 2, more preferably, reducer casing 2 carries reducer casing for lifting motor, this lifting motor carries reducer casing and is fixed on tables' baffle plate, reducer casing 2 is connected with lifting shaft 5, lifting shaft 5 two ends are connected with learning desk table leg 6, lifting motor 1 can drive the lifting of learning desk desktop, specifically can by but be not limited to following mode: lifting shaft 5 two ends and learning desk junction are provided with the Rotation With Changing of lifting shaft to the reverse mechanism for the elevating movement of learning desk desktop, and reverse mechanism can be selected any suitable reverse mechanism that can reach above-mentioned functions for use, preferably, in the present embodiment, adopt the worm and gear reverse mechanism, worm gear set is located on the lifting shaft 5, and the lower end of worm screw 7 is fixed in the table leg.Be fixed with double reduction gearing on the lifting shaft 5, this double reduction gearing comprises gear 51, reduction gearing 52 and gear 53, wherein lifting shaft 5 passes the center of gear 51, gear 51 meshes with the gear wheel of reduction gearing 52, the pinion of gear 53 and reduction gearing 52, the final stage gear of this double reduction gearing, be that reduction gearing 53 is provided with potentiometer, in the present embodiment, the position that is provided with of potentiometer is on 53 cores of final stage gear, but this concrete desired location is not used in qualification, this potentiometer rotates that number of turns is proportional with the lifting travel of desktop, and the concrete numerical value of this ratio can be provided with according to the actual conditions needs, for example can be but is not limited to: the height of 1-10K resistance value correspondence 10-100CM.The reduction gear ratio of reduction gearing can be provided with according to actual needs, and in the present embodiment, reduction gear ratio can be but is not limited to 10-12:1.
Preferably, in the present embodiment, uppermost position in fig-ure and upper/lower positions worm screw 7 also are respectively equipped with lifting table limit switch 81,82, limit adjustable extreme higher position of desktop and extreme lower position respectively, are convenient to carry out the location of learning desk desktop extreme higher position and extreme lower position.
The stroke detection working process of mechanism and the principle of lifting learning desk of the present utility model are as follows: after opening the desktop elevating function, lifting motor 1 rotates, and by after reducer casing 2 reinforcings that carry, the lifting shaft 5 that drive is enclosed within the reducer casing 2 rotates, the worm-and-wheel gear running at lifting shaft 5 two ends, thereby with the Rotation With Changing of lifting shaft to the elevating movement that is the learning desk desktop, like this, desktop under lifting motor 1 drives with regard to liftable; Simultaneously, gear 51 fixing on the lifting shaft 5 also rotates in the lump, and drive reduction gearing 52 and gear 53 rotations, this moment, the counting of turn-taking of the potentiometer on the reduction gearing 53 rotated the corresponding resistance value of the number of turns, resistance value correspondence desktop adjustable height, above-mentioned corresponding ratio is definite value, promptly can converse the learning desk height of table top, reach, can learn the instant height when desktop is parked in any position easily without the limit switch purpose of height of table top as can be known just by rotating the number of turns.
Embodiment two
The difference of present embodiment and embodiment one is, gear 51 and the engagement of one-level reduction gearing, and this one-level reduction gearing is provided with potentiometer.
Above embodiment only is used to illustrate content of the present utility model, and except that above-mentioned embodiment, the utility model also has other embodiment, and all employings are equal to replaces or technical scheme that the equivalent deformation mode forms all drops in the protection domain of the present utility model.
Claims (6)
1. the stroke detection mechanism of a lifting learning desk, comprise lifting motor, reducing gear, lifting shaft, described lifting motor is located on the lifting learning desk body and with described reducing gear and is connected, described reducing gear is connected with described lifting shaft, described lifting shaft is connected with the learning desk table leg, lifting shaft rotates can drive the lifting of learning desk desktop, it is characterized in that, be fixed with one-level or double reduction gearing on the described lifting shaft, the final stage gear of described reduction gearing is provided with potentiometer, and the lifting travel of the described potentiometer rotation number of turns and desktop is proportional.
2. the stroke detection mechanism of lifting learning desk according to claim 1 is characterized in that, described reducing gear is a reducer casing.
3. the stroke detection mechanism of lifting learning desk according to claim 2 is characterized in that, described reducer casing is that lifting motor carries reducer casing.
4. the stroke detection mechanism of lifting learning desk according to claim 1 is characterized in that, described lifting shaft two ends and learning desk junction are respectively equipped with the Rotation With Changing of lifting shaft to the reverse mechanism for the elevating movement of learning desk desktop.
5. the stroke detection mechanism of lifting learning desk according to claim 4 is characterized in that, described reverse mechanism is a worm and gear, and described worm gear set is located on the described lifting shaft, and the lower end of described worm screw is fixed in the table leg.
6. the stroke detection mechanism of lifting learning desk according to claim 5 is characterized in that, described worm screw is respectively equipped with the lifting table limit switch in its uppermost position in fig-ure and upper/lower positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079544 CN203100672U (en) | 2013-02-21 | 2013-02-21 | Stroke detecting mechanism of lifting study table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320079544 CN203100672U (en) | 2013-02-21 | 2013-02-21 | Stroke detecting mechanism of lifting study table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203100672U true CN203100672U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320079544 Expired - Fee Related CN203100672U (en) | 2013-02-21 | 2013-02-21 | Stroke detecting mechanism of lifting study table |
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| Country | Link |
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| CN (1) | CN203100672U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748154A (en) * | 2018-06-11 | 2018-11-06 | 浙江国自机器人技术有限公司 | A kind of system and method for calibration mechanical arm |
| CN109493576A (en) * | 2018-11-29 | 2019-03-19 | 刘玉婷 | A kind of intelligent city's traffic indicating equipment |
| CN110459029A (en) * | 2019-09-04 | 2019-11-15 | 宁波安泊电子有限公司 | Liftable fire-alarm |
| CN112014038A (en) * | 2020-08-22 | 2020-12-01 | 郑州三骏能源科技有限公司 | New energy automobile electric cabinet check out test set |
| CN112986146A (en) * | 2021-05-06 | 2021-06-18 | 上海建工集团股份有限公司 | Image recognition-based guide rail frame bolt connection reliability detection device |
-
2013
- 2013-02-21 CN CN 201320079544 patent/CN203100672U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108748154A (en) * | 2018-06-11 | 2018-11-06 | 浙江国自机器人技术有限公司 | A kind of system and method for calibration mechanical arm |
| CN109493576A (en) * | 2018-11-29 | 2019-03-19 | 刘玉婷 | A kind of intelligent city's traffic indicating equipment |
| CN110459029A (en) * | 2019-09-04 | 2019-11-15 | 宁波安泊电子有限公司 | Liftable fire-alarm |
| CN112014038A (en) * | 2020-08-22 | 2020-12-01 | 郑州三骏能源科技有限公司 | New energy automobile electric cabinet check out test set |
| CN112986146A (en) * | 2021-05-06 | 2021-06-18 | 上海建工集团股份有限公司 | Image recognition-based guide rail frame bolt connection reliability detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20180221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |