CN105411804A - Variable-speed medical chair with angle-adjustable backrest - Google Patents
Variable-speed medical chair with angle-adjustable backrest Download PDFInfo
- Publication number
- CN105411804A CN105411804A CN201510997426.3A CN201510997426A CN105411804A CN 105411804 A CN105411804 A CN 105411804A CN 201510997426 A CN201510997426 A CN 201510997426A CN 105411804 A CN105411804 A CN 105411804A
- Authority
- CN
- China
- Prior art keywords
- backrest
- gear
- slide
- power
- engage
- 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.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/02—Chairs with means to adjust position of patient; Controls therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
Abstract
A variable-speed medical chair with an angle-adjustable backrest comprises a backrest component (3) and a base component (4), wherein the backrest component (3) comprises a backrest baseplate (31) and a backrest panel (421); the backrest panel (421) is connected with the backrest baseplate (31) via backrest springs (43); the backrest baseplate (31) and the backrest panel (421) are rotatably supported on a fixed shaft (41) on a base bracket (40) via a baseplate driving gear (311) and a panel driving gear (42) respectively; the baseplate driving gear (311) is meshed with and power-driven by a power setting gear (37) in coaxial connection with a worm gear (371); the worm gear (371) is meshed with and power-driven by a worm (372) being in power connection with a motor.
Description
Technical field
The present invention relates to medical machinery field, especially a kind of backrest angle is adjustable and the medical chair of variable-ratio.
Background technology
In the medical field, often need to use some treatment chairs, the operation chair of such as some dentistry or ophthalmology etc.The backrest angle of these medical chairs often needs adjustable flexibly, to be adapted to angle in therapeutic process and position adjustment needs.
In some current medical chairs, the adjustment of backrest angle is often through power drive, and such as motor drives, and realizes.But, in the process used, often need manually slowly to adjust the therapentic part of patient to adjustment, to meet doctor's operation technique over the course for the treatment of or to observe needs.This needs to be provided with while power adjustment manually to adjust function.Therefore, in power adjustment and the dynamical system compatibility of manually adjustment and arranging of being independent of each other, often arrange to the structure of whole medical chair and transmission and bring difficulty.And too intricately arranges multiple autonomous system and easily increases manufacturing cost, and increase the difficulty of follow-up maintenance.
Summary of the invention
The object of the present invention is to provide a kind of backrest angle adjustable and the medical chair of variable-ratio, it can overcome defect of the prior art.
A kind of backrest angle according to the present invention is adjustable and the medical chair of variable-ratio, comprise backrest module and base assembly, described backrest module comprises backrest base plate and the back panel be connected with described backrest base plate by backrest spring, described backrest base plate and back panel are rotatably supported on the fixed axis on base support respectively by backplane drive gear and panel driven wheel, described backplane drive gear adjusts gears meshing and power drive by with the power that worm gear is coaxially connected, and described worm gear is by the worm engaging connected with motor power and power drive; described panel driving gear is engaged by the tooth-strip part on the upper side of inner thread sleeve and drives, described inner thread sleeve coordinates with the screw flight being connected with manual regulating wheel and is driven by it and can moves left and right in the chute on movable slide, described screw rod is rotatably mounted on described movable slide by the bearing assembly at described movable slide one end place, described movable slide can slide up and down in the slip cavity of described base support bottom and and be provided with between described base support to push up and press base spring, the other end place of described movable slide is provided integrally with vertical drive division, the upper end of described vertical drive division be provided with through hole with can adjust gears meshing by described power and to drive thus driving cross bar on the rack slide slided up and down on vertical guide rod is slidably matched thus is driven up and down by described rack slide, make described movable slide in described slip cavity, slide to make described tooth-strip part engage with described panel driving Gear Contact or depart from respectively up or down thus to engage, wherein, the lower end of described vertical guide rod can horizontally slip in the guide rod chute on described base support and be provided with the protuberance stretched out towards described vertical drive division, the lower end of described vertical guide rod is pressed by the guide rod top pressure spring top be pressed on described base support in the side relative with described protuberance and is made described protuberance top be pressed on the side of described vertical drive division thus, engage with the wedge-shaped part of described protuberance end when the described side of described vertical drive division being also provided with inclined plane groove in order to be moved down at described movable slide and to make described tooth-strip part and described panel driving gear depart from and engage, and make described vertical guide rod drive described rack slide to move to make the tooth bar of described rack slide and described power to adjust gear towards described vertical drive division upon engagement to depart from and engage, described base support right hand top is provided with electronic-controlled installation, described electronic-controlled installation and described motor Electricity Federation, described electronic-controlled installation is in order to control described motor speed, the speed thus the wedge-shaped part that can control described protuberance end by the rotating speed adjusting described motor as required connects with described inclined plane groove.
Pass through such scheme, owing to being provided with the screw drive assembly utilizing hand wheel to drive, it can make rack member move left and right, thus drives the change in angular position of the panel backrest of backrest, can utilize the angle position manually and accurately controlling backrest and pace of change thus.And, utilize and can engage and the rack sleeve parts that can depart from driving pinion, its starting stage that can drive in power adjustment make described manual actuation be with the inner thread sleeve of tooth bar to move downward and depart from and the engaging of the driven wheel of back panel, thus does not affect the resting state of adjustment handwheel when making power drive adjust backrest angle or be not subject to the interference of this adjustment handwheel; And after the tooth bar associated by handwheel and respective gears are thrown off, made power drive wheel and rack slide block depart from engagement by the recess that vertical portion is arranged, with the operation making rack slide not affect described power driven gear.
The power source (motor) adjusting backrest angle by power due to the control of the engagement/disengagement of the rack and pinion of manual association drives in the lump, thus reduces equipment cost and is convenient to plant maintenance.Whole medical chair is stable reliably easy and simple to handle.
Accompanying drawing explanation
Fig. 1 is the adjustable and overall structure schematic diagram of the medical chair of variable-ratio of a kind of backrest angle of the present invention.
Detailed description of the invention
Below in conjunction with Fig. 1, the present invention is described in detail.
Adjustable and the medical chair of variable-ratio according to the backrest angle of embodiment, comprise backrest module 3 and base assembly 4, described backrest module 3 comprises backrest base plate 31 and the back panel 421 be connected with described backrest base plate 31 by backrest spring 43, described backrest base plate 31 and back panel 421 are rotatably supported on the fixed axis 41 on base support 40 respectively by backplane drive gear 311 and panel driven wheel 42, described backplane drive gear 311 engages and power drive by adjusting gear 37 with the coaxial power be connected of worm gear 371, described worm gear 371 is by engaging with the worm screw 372 that motor power connects and power drive, described panel driving gear 42 is engaged by the tooth-strip part on the upper side of inner thread sleeve 38 and is driven, described inner thread sleeve 38 be connected with screw rod 45 threaded engagement of manual regulating wheel 451 and be driven by it and can move left and right in the chute on movable slide 39, described screw rod 45 is rotatably mounted on described movable slide 39 by the bearing assembly 450 at described movable slide 39 one end place, described movable slide 39 can slide up and down in the slip cavity 400 of described base support 40 bottom and and be provided with between described base support 40 to push up and press base spring 30, the other end place of described movable slide 39 is provided integrally with vertical drive division 34, the upper end of described vertical drive division 34 be provided with through hole with can adjust gear 37 by described power and engage and to drive thus driving cross bar 331 on the rack slide 33 slided up and down on vertical guide rod 35 is slidably matched thus is driven by described rack slide about 33, make described movable slide 39 in described slip cavity 400, slide to make respectively described tooth-strip part to contact to engage or depart from described panel driving gear 42 and engage up or down thus, wherein, the lower end of described vertical guide rod 35 can horizontally slip in the guide rod chute 350 on described base support 40 and be provided with the protuberance 351 stretched out towards described vertical drive division 34, the lower end of described vertical guide rod 35 to be pushed up on the side that pressure makes described protuberance 351 push up to be pressed in described vertical drive division 34 thus in the side relative with described protuberance 351 by the guide rod top pressure spring 36 be pressed on described base support 40, engage with the wedge-shaped part of described protuberance 351 end when the described side of described vertical drive division 34 being also provided with inclined plane groove 341 in order to be moved down at described movable slide 39 and to make described tooth-strip part and described panel driving gear 42 depart from and engage, and make described vertical guide rod 35 drive described rack slide 33 to move to make the tooth bar of described rack slide 33 and described power to adjust gear 37 towards described vertical drive division 34 upon engagement to depart from and engage, described base support 40 right hand top is provided with electronic-controlled installation 4011, described electronic-controlled installation 4011 and described motor Electricity Federation, described electronic-controlled installation 4011 is in order to control described motor speed, the speed thus the wedge-shaped part that can control described protuberance 351 end by the rotating speed adjusting described motor as required connects with described inclined plane groove 341.
Valuably, wherein, described backrest base plate 31 is for using when coarse adjustment backrest angle, and described back panel 421 is for using when accurate adjustment backrest angle.
Valuably, wherein, when described manual regulating wheel 451 is upwards pulled and described tooth-strip part is engaged again with described backplane drive gear 311, electricity under described motor, and the tooth bar of described rack slide 33 and described power adjust gear 37 again engages.
Owing to being provided with the screw drive assembly utilizing hand wheel to drive, it can make rack member move left and right, thus drives the change in angular position of the panel backrest of backrest, can utilize the angle position manually and accurately controlling backrest and pace of change thus.And, utilize and can engage and the rack sleeve parts that can depart from driving pinion, its starting stage that can drive in power adjustment make described manual actuation be with the inner thread sleeve of tooth bar to move downward and depart from and the engaging of the driven wheel of back panel, thus does not affect the resting state of adjustment handwheel when making power drive adjust backrest angle or be not subject to the interference of this adjustment handwheel; And after the tooth bar associated by handwheel and respective gears are thrown off, made power drive wheel and rack slide block depart from engagement by the recess that vertical portion is arranged, with the operation making rack slide not affect described power driven gear.
By with upper type, those skilled in the art can make various change according to mode of operation within the scope of the invention.
Claims (3)
1. the adjustable and medical chair of variable-ratio of a backrest angle, comprise backrest module (3) and base assembly (4), described backrest module (3) comprises backrest base plate (31) and the back panel (421) be connected with described backrest base plate (31) by backrest spring (43), described backrest base plate (31) and back panel (421) are rotatably supported on the fixed axis (41) on base support (40) respectively by backplane drive gear (311) and panel driven wheel (42), described backplane drive gear (311) is engaged and power drive by adjusting gear (37) with the coaxial power be connected of worm gear (371), described worm gear (371) is by engaging with the worm screw (372) that motor power connects and power drive, described panel driving gear (42) is engaged by the tooth-strip part on the upper side of inner thread sleeve (38) and is driven, described inner thread sleeve (38) be connected with screw rod (45) threaded engagement of manual regulating wheel (451) and be driven by it and can move left and right in the chute on movable slide (39), described screw rod (45) is rotatably mounted on described movable slide (39) by the bearing assembly (450) at described movable slide (39) one end place, described movable slide (39) can slide up and down in the slip cavity (400) of described base support (40) bottom and and be provided with between described base support (40) to push up and press base spring (30), the other end place of described movable slide (39) is provided integrally with vertical drive division (34), the upper end of described vertical drive division (34) be provided with through hole with can adjust gear (37) by described power and engage and to drive thus driving cross bar (331) on the rack slide (33) slided up and down on vertical guide rod (35) is slidably matched thus is driven up and down by described rack slide (33), make described movable slide (39) in described slip cavity (400), slide to make respectively described tooth-strip part to contact to engage or depart from described panel driving gear (42) and engage up or down thus, wherein, the lower end of described vertical guide rod (35) can horizontally slip in the guide rod chute (350) on described base support (40) and be provided with the protuberance (351) stretched out towards described vertical drive division (34), the lower end of described vertical guide rod (35) is pushed up to press by the guide rod top pressure spring (36) be pressed on described base support (40) in the side relative with described protuberance (351) and is made described protuberance (351) push up thus to be pressed on the side of described vertical drive division (34), engage with the wedge-shaped part of described protuberance (351) end when the described side of described vertical drive division (34) being also provided with inclined plane groove (341) in order to be moved down into make described tooth-strip part depart from engage with described panel driving gear (42) described movable slide (39), and make described vertical guide rod (35) drive described rack slide (33) to depart from towards described vertical drive division (34) is mobile engage to make the tooth bar of described rack slide (33) and described power adjust gear (37) upon engagement, described base support (40) right hand top is provided with electronic-controlled installation (4011), described electronic-controlled installation (4011) and described motor Electricity Federation, described electronic-controlled installation (4011) is in order to control described motor speed, the speed thus the wedge-shaped part that can control described protuberance (351) end by the rotating speed adjusting described motor as required connects with described inclined plane groove (341).
2. the adjustable and medical chair of variable-ratio of backrest angle as claimed in claim 1, wherein, described backrest base plate (31) is for using when coarse adjustment backrest angle, and described back panel (421) is for using when accurate adjustment backrest angle.
3. the adjustable and medical chair of variable-ratio of backrest angle as claimed in claim 1 or 2, wherein, when described manual regulating wheel (451) is upwards pulled and described tooth-strip part is engaged again with described backplane drive gear (311), electricity under described motor, and the tooth bar of described rack slide (33) and described power adjust gear (37) again engages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997426.3A CN105411804A (en) | 2015-12-25 | 2015-12-25 | Variable-speed medical chair with angle-adjustable backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510997426.3A CN105411804A (en) | 2015-12-25 | 2015-12-25 | Variable-speed medical chair with angle-adjustable backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105411804A true CN105411804A (en) | 2016-03-23 |
Family
ID=55490667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510997426.3A Pending CN105411804A (en) | 2015-12-25 | 2015-12-25 | Variable-speed medical chair with angle-adjustable backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105411804A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108567543A (en) * | 2018-04-11 | 2018-09-25 | 韩姝 | A kind of synthesis dental care system with intelligent speed-regulating |
| CN114712144A (en) * | 2022-06-10 | 2022-07-08 | 潍坊护理职业学院 | Operation chair |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3808752A1 (en) * | 1987-03-06 | 1988-11-24 | Peter Bammert | Deck chair (lounger) |
| CN2366081Y (en) * | 1999-02-03 | 2000-03-01 | 张宗权 | Multi-functional wheel-chair |
| US6312054B1 (en) * | 1998-10-26 | 2001-11-06 | Texas Recreation Corporation | Buoyant pool chair with adjustable angle of recline |
| US6341821B1 (en) * | 2000-02-04 | 2002-01-29 | Vincent Rousseau | Ergonomic armrest and joystick assembly |
| CN202152018U (en) * | 2011-08-12 | 2012-02-29 | 沈阳延锋江森座椅有限责任公司 | Chair adjusting mechanism with mechanical and electrical separation function |
| CN203597643U (en) * | 2013-11-14 | 2014-05-21 | 安吉县盛信办公家具有限公司 | One-person sofa chair |
| CN204050190U (en) * | 2014-09-04 | 2014-12-31 | 王昕荣 | The gynaecological examination chair that a kind of backrest slope is adjustable |
| CN204636896U (en) * | 2015-03-05 | 2015-09-16 | 天津医科大学代谢病医院 | A kind of cardiac inspection chair |
-
2015
- 2015-12-25 CN CN201510997426.3A patent/CN105411804A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3808752A1 (en) * | 1987-03-06 | 1988-11-24 | Peter Bammert | Deck chair (lounger) |
| US6312054B1 (en) * | 1998-10-26 | 2001-11-06 | Texas Recreation Corporation | Buoyant pool chair with adjustable angle of recline |
| CN2366081Y (en) * | 1999-02-03 | 2000-03-01 | 张宗权 | Multi-functional wheel-chair |
| US6341821B1 (en) * | 2000-02-04 | 2002-01-29 | Vincent Rousseau | Ergonomic armrest and joystick assembly |
| CN202152018U (en) * | 2011-08-12 | 2012-02-29 | 沈阳延锋江森座椅有限责任公司 | Chair adjusting mechanism with mechanical and electrical separation function |
| CN203597643U (en) * | 2013-11-14 | 2014-05-21 | 安吉县盛信办公家具有限公司 | One-person sofa chair |
| CN204050190U (en) * | 2014-09-04 | 2014-12-31 | 王昕荣 | The gynaecological examination chair that a kind of backrest slope is adjustable |
| CN204636896U (en) * | 2015-03-05 | 2015-09-16 | 天津医科大学代谢病医院 | A kind of cardiac inspection chair |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108567543A (en) * | 2018-04-11 | 2018-09-25 | 韩姝 | A kind of synthesis dental care system with intelligent speed-regulating |
| CN108567543B (en) * | 2018-04-11 | 2020-02-21 | 韩姝 | Comprehensive oral treatment system with intelligent speed regulation |
| CN114712144A (en) * | 2022-06-10 | 2022-07-08 | 潍坊护理职业学院 | Operation chair |
| CN114712144B (en) * | 2022-06-10 | 2022-09-02 | 潍坊护理职业学院 | Operation chair |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |
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| WD01 | Invention patent application deemed withdrawn after publication |