CN105596176A - Backrest-angle-adjustable medical chair with slide grooves and wheels - Google Patents
Backrest-angle-adjustable medical chair with slide grooves and wheels Download PDFInfo
- Publication number
- CN105596176A CN105596176A CN201510999048.2A CN201510999048A CN105596176A CN 105596176 A CN105596176 A CN 105596176A CN 201510999048 A CN201510999048 A CN 201510999048A CN 105596176 A CN105596176 A CN 105596176A
- Authority
- CN
- China
- Prior art keywords
- backrest
- slide
- chute
- gear
- guide rod
- 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 backrest-angle-adjustable medical chair with slide grooves and wheels comprises a backrest assembly (3) and a base assembly (4). The backrest assembly (3) comprises a backrest bottom plate (31) and a backrest face plate (421) connected with the backrest bottom plate (31) through backrest springs (43). The backrest bottom plate (31) and the backrest face plate (421) are supported by a fixed shaft (41) on a base support (40) in a rotatable mode through a bottom plate drive gear (311) and a face plate drive gear (42) respectively. The bottom plate drive gear (311) is meshed with a power adjustment gear (37) coaxially connected with a worm wheel (371) and is driven by power. The worm wheel (371) is meshed with a worm (372) connected with a motor through power and is driven by power.
Description
Technical field
The present invention relates to medical machinery field, especially a kind of backrest angle is adjustable and medical chair with chute and roller.
Background technology
In medical field, often need to use some treatment chairs, for example the operation chair of some dentistry or ophthalmology etc.The backrest angle of these medical chairs often needs adjustable flexibly, to be adapted to angle and the position adjustment in therapeutic processNeed.
In some current medical chairs, the adjustment of backrest angle is often by power drive, and for example motor drives,Realize. But, in the process using, often need manually to adjust patient's therapentic part slowly adjustedWhole, to meet operation technique or the observation needs of doctor in therapeutic process. This need to arrange when power is adjustedThere is manual adjustment function. Therefore, in the dynamical system compatibility of power adjustment and manually adjustment and arranging of being independent of each other,Bring difficulty often to structure and the transmission setting of whole medical chair. And too intricately arranges multiple autonomous systems appearancesEasily increase manufacturing cost, and increase the difficulty of follow-up maintenance.
Summary of the invention
The object of the present invention is to provide the adjustable and medical chair with chute and roller of a kind of backrest angle, its energyEnough overcome defect of the prior art.
A kind of backrest angle according to the present invention is adjustable and medical chair with chute and roller, comprises backrest module and the endHolder assembly, described backrest module comprises backrest base plate and the back panel being connected with described backrest base plate by backrest spring,Described backrest base plate and back panel are rotatably supported in the end by backplane drive gear and panel driving gear respectivelyOn fixed axis on seat support, described backplane drive gear engages and moves by adjusting gear with the coaxial power being connected of worm gearPower drives, and described worm gear is by the worm engaging connecting with motor power power drive; Described panel driving gear is by interiorTooth-strip part on the upper side of screw shell engages and drives, described inner thread sleeve and the spiral shell that is connected with manual regulating wheelBar threaded engagement is also driven by it and can in the chute on movable slide, moves left and right, described screw rod by described canMove the bearing assembly at slide one end place and be rotatably mounted on described movable slide, described movable slide can be in instituteState in the slip cavity of base support bottom, slide up and down and and described base support between be provided with top and press base bulletSpring, the other end place of described movable slide is provided with vertical drive division integratedly, and the upper end of described vertical drive division is establishedThereby be equipped with through hole with can adjust gear by described power engage and drive the tooth bar sliding up and down on vertical guide rodThereby the driving cross bar on slide block is slidably matched and is driven up and down by described rack slide, make thus described movable slide existIn described slip cavity, slide up or down to make respectively described tooth-strip part to engage with described panel driving Gear ContactOr depart from engagement, wherein, the lower end of described vertical guide rod can the guide rod chute on described base support in left and right slidingMove and be provided with the protuberance stretching out towards described vertical drive division, described vertical guide rod bottom is provided with roller, instituteState roller top and be fixedly connected with described vertical guide rod, described roller be arranged in described guide rod chute and with described guide rodChute rolls and connects, the flexibility that described roller horizontally slips in order to improve described vertical guide rod, described vertical guide rodLower end is made by the guide rod top pressure spring top pressure being pressed on described base support thus in a side relative with described protuberanceObtain described protuberance top and be pressed on the side of described vertical drive division, on the described side of described vertical drive division, also arrangeThere is inclined plane groove in order to be moved down at described movable slide, described tooth-strip part and described panel driving gear to be departed fromWhen engagement, engage with the wedge-shaped part of described protuberance end, and after joint, make described in described vertical guide rod driveRack slide moves to make the tooth bar of described rack slide and described power adjustment gear to take off towards described vertical drive divisionFrom engagement, the base support of described slip cavity both sides is provided with slide guide chute, described slide guide chute, instituteState movable slide and be embedded in described slide guide chute, and sliding connection, described slide guide chute is in order to improveThe stability that described movable slide moves up and down.
By such scheme, owing to being provided with the screw drive assembly that utilizes hand wheel to drive, it can make tooth barParts move left and right, thereby drive the change in angular position of the panel backrest of backrest, can utilize thus manually and accuratelyControl angle position and the pace of change of backrest. And, utilize and can engage and also can depart from driving with pinionRack sleeve parts, its starting stage that can drive in power adjustment makes the interior spiral shell with tooth bar for described manual actuationLine sleeve moves downward and departs from and the engaging of the driven wheel of back panel, thereby makes power drive adjust backrest angleWhile spending, do not affect the inactive state of adjusting handwheel or the interference that is not subject to this adjustment handwheel; And by the tooth bar of handwheel associationAfter throwing off with respective gears, by the recess arranging on vertical portion, power drive wheel and rack slide block is departed fromEngagement, to make rack slide not affect the operation of described power drive gear.
Because the control of engagement/disengagements of manually associated rack and pinion is by the power source (electricity of power adjustment backrest angleMachine) drive in the lump, reduce thus equipment cost and be convenient to plant maintenance. The stable operation letter of whole medical chairJust reliable.
Brief description of the drawings
Fig. 1 is the overall structure signal of the adjustable and medical chair with chute and roller of a kind of backrest angle of the present inventionFigure.
Detailed description of the invention
Below in conjunction with Fig. 1, the present invention is described in detail.
And medical chair with chute and roller adjustable according to the backrest angle of embodiment, comprises backrest module 3 and baseAssembly 4, described backrest module 3 comprises backrest base plate 31 and is connected with described backrest base plate 31 by backrest spring 43Back panel 421, described backrest base plate 31 and back panel 421 are respectively by backplane drive gear 311 and panelDriven wheel 42 and be rotatably supported on the fixed axis 41 on base support 40 described backplane drive gear 311By adjusting with the coaxial power that is connected of worm gear 371, gear 37 engages and power drive, described worm gear 371 by with motorWorm screw 372 engagement the power drives that power connects; Described panel driving gear 42 is by the upper side of inner thread sleeve 38On tooth-strip part engage and drive, described inner thread sleeve 38 and screw rod 45 screw threads that are connected with manual regulating wheel 451Coordinate and be driven by it and can in the chute on movable slide 39, move left and right, described screw rod 45 by described canMove the bearing assembly 450 at slide 39 one end places and be rotatably mounted on described movable slide 39 described movable cunningSeat 39 can in the slip cavity 400 of described base support 40 bottoms, slide up and down and with described base support 40Between be provided with top and press base spring 30, the other end place of described movable slide 39 is provided with vertical drive division integratedly34, the upper end of described vertical drive division 34 be provided with through hole with can adjust gear 37 by described power and engage alsoThereby thereby drive driving cross bar 331 on the rack slide 33 sliding up and down on vertical guide rod 35 be slidably matched byDescribed rack slide 33 drives up and down, make thus described movable slide 39 in described slip cavity 400 upwards orDown sliding engages to make respectively described tooth-strip part contact engagement with described panel driving gear 42 or depart from, wherein,The lower end of described vertical guide rod 35 can horizontally slip and establish in the guide rod chute 350 on described base support 40Be equipped with the protuberance 351 stretching out towards described vertical drive division 34, described vertical guide rod 35 bottoms are provided with roller 352,Described roller 352 tops are fixedly connected with described vertical guide rod 35, and described roller 352 is arranged on described guide rod chuteIn 350 and with described guide rod chute 350, roll and be connected, described roller 352 is in order to improve described vertical guide rod 35 left and rightThe flexibility of sliding, the lower end of described vertical guide rod 35 in a side relative with described protuberance 351 by described in being pressed onGuide rod top pressure spring 36 tops on base support 40 are pressed and are made thus described protuberance 351 tops be pressed in described vertical drivingOn the side of portion 34, on the described side of described vertical drive division 34, be also provided with inclined plane groove 341 in order to describedMovable slide 39 is moved down into when described tooth-strip part is engaged with described panel driving gear 42 disengagings and is described protrudingThe wedge-shaped part that goes out portion 351 ends engages, and after joint, makes described vertical guide rod 35 drive described rack slide33 move to make the tooth bar of described rack slide 33 and described power to adjust gear 37 towards described vertical drive division 34Depart from engagement, the base support 40 of described slip cavity 400 both sides is provided with slide guide chute 4001, described cunningSeat guide chute 4001, described movable slide 39 is embedded in described slide guide chute 4001, and sliding connection,The stability that described slide guide chute 4001 moves up and down in order to improve described movable slide 39.
Valuably, wherein, described backrest base plate 31 is for using when the coarse adjustment backrest angle, described back panel 421For using in the time of accurate adjustment backrest angle.
Valuably, wherein, described manual regulating wheel 451 is upwards pulled and is made described tooth-strip part and described backplane drive toothWhen wheel 311 engages again, electricity under described motor, and the tooth bar of described rack slide 33 and described power adjustment gear37 engagements again.
Owing to being provided with the screw drive assembly that utilizes hand wheel to drive, it can make rack member move left and right,Thereby drive the change in angular position of the panel backrest of backrest, can utilize thus the angle of manually and accurately controlling backrestPosition and pace of change. And, utilize and drive the rack sleeve parts that can engage and can depart from pinion,Its starting stage that can drive in power adjustment makes described manual actuation with moving downward with the inner thread sleeve of tooth barAnd depart from and the engaging of the driven wheel of back panel, thereby do not affect adjustment while making power drive adjustment backrest angleThe inactive state of handwheel or be not subject to the interference of this adjustment handwheel; And the tooth bar of handwheel association and respective gears are being thrown offAfter, make power drive wheel and rack slide block depart from engagement by the recess arranging on vertical portion, to make toothBar slide block does not affect the operation of described power drive gear.
By with upper type, those skilled in the art can make various within the scope of the invention according to mode of operationChange.
Claims (3)
1. the adjustable and medical chair with chute and roller of backrest angle, comprises backrest module (3) and base assembly (4),Described backrest module (3) comprises backrest base plate (31) and passes through backrest spring (43) and described backrest base plate (31)The back panel (421) connecting, described backrest base plate (31) and back panel (421) are respectively by backplane drive toothTake turns (311) and panel driving gear (42) and be rotatably supported in the fixed axis (41) on base support (40)Upper, described backplane drive gear (311) is by adjusting gear (37) engagement with the coaxial power being connected of worm gear (371)And power drive, described worm gear (371) is engaged and power drive by the worm screw connecting with motor power (372); InstituteState panel driving gear (42) and engage and drive by the tooth-strip part on the upper side of inner thread sleeve (38), described inScrew shell (38) be connected with screw rod (45) threaded engagement of manual regulating wheel (451) and be driven by it and canIn chute on movable slide (39), move left and right, described screw rod (45) is by described movable slide (39)The bearing assembly (450) at end place and be rotatably mounted on described movable slide (39) described movable slide (39)Can in the slip cavity (400) of described base support (40) bottom, slide up and down and with described base support (40)Between be provided with top press base spring (30), the other end place of described movable slide (39) is provided with vertically and drives integratedlyMoving portion (34), the upper end of described vertical drive division (34) be provided with through hole with can adjust gear by described power(37) thus engage and drive the driving cross bar on the rack slide (33) sliding up and down on vertical guide rod (35)(331) thus be slidably matched and driven up and down by described rack slide (33), make thus described movable slide (39)In described slip cavity (400), slide up or down to make respectively described tooth-strip part and described panel driving gear(42) contact engagement or disengaging engagement, wherein, the lower end of described vertical guide rod (35) can be at described base support(40) in the guide rod chute (350) on, horizontally slip and be provided with and stretch out towards described vertical drive division (34)Protuberance (351), described vertical guide rod (35) bottom is provided with roller (352), described roller (352) top withDescribed vertical guide rod (35) is fixedly connected with, described roller (352) be arranged in described guide rod chute (350) and withDescribed guide rod chute (350) rolls and connects, and described roller (352) is in order to improve described vertical guide rod (35) left and rightSlide flexibility, the lower end of described vertical guide rod (35) in a side relative with described protuberance (351) by compressingGuide rod top pressure spring (36) top on described base support (40) is pressed and is made thus described protuberance (351) top pressOn the side of described vertical drive division (34), on the described side of described vertical drive division (34), be also provided with tiltedlyFace groove (341) is in order to be moved down into and to make described tooth-strip part and described panel driving at described movable slide (39)Gear (42) engages with the wedge-shaped part of described protuberance (351) end while departing from engagement, and makes after jointDescribed vertical guide rod (35) drives described rack slide (33) mobile to make towards described vertical drive division (34)The tooth bar of described rack slide (33) is adjusted gear (37) disengaging with described power and is engaged, described slip cavity (400)The base support (40) of both sides is provided with slide guide chute (4001), described slide guide chute (4001), instituteState movable slide (39) and be embedded in described slide guide chute (4001), and sliding connection, described slide is ledThe stability moving up and down in order to improve described movable slide (39) to chute (4001).
2. the adjustable and medical chair with chute and roller of backrest angle as claimed in claim 1, wherein, at the bottom of described backrestPlate (31) is for using when the coarse adjustment backrest angle, and described back panel (421) is for making when the accurate adjustment backrest angleWith.
3. the adjustable and medical chair with chute and roller of backrest angle as claimed in claim 1 or 2, wherein, described handMoving regulating wheel (451) is upwards pulled when 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) engages again with described power adjustment gear (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999048.2A CN105596176A (en) | 2015-12-25 | 2015-12-25 | Backrest-angle-adjustable medical chair with slide grooves and wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999048.2A CN105596176A (en) | 2015-12-25 | 2015-12-25 | Backrest-angle-adjustable medical chair with slide grooves and wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105596176A true CN105596176A (en) | 2016-05-25 |
Family
ID=55976919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510999048.2A Pending CN105596176A (en) | 2015-12-25 | 2015-12-25 | Backrest-angle-adjustable medical chair with slide grooves and wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105596176A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN204050190U (en) * | 2014-09-04 | 2014-12-31 | 王昕荣 | The gynaecological examination chair that a kind of backrest slope is adjustable |
| WO2015095221A2 (en) * | 2013-12-16 | 2015-06-25 | Mulhern James P | Elevated height wheelchair |
| CN104873288A (en) * | 2015-04-10 | 2015-09-02 | 毛静 | Portable folding oral treatment device |
-
2015
- 2015-12-25 CN CN201510999048.2A patent/CN105596176A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2015095221A2 (en) * | 2013-12-16 | 2015-06-25 | Mulhern James P | Elevated height wheelchair |
| CN204050190U (en) * | 2014-09-04 | 2014-12-31 | 王昕荣 | The gynaecological examination chair that a kind of backrest slope is adjustable |
| CN104873288A (en) * | 2015-04-10 | 2015-09-02 | 毛静 | Portable folding oral treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liang Qunqing Inventor before: Chen Jian |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180116 Address after: No. 220 post Qing Road, Lishui, Zhejiang Province, Zhejiang Applicant after: Liang Qunqing Address before: No. 220 post Qing Road, Lishui, Zhejiang Province, Zhejiang Applicant before: Chen Jian |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160525 |
|
| RJ01 | Rejection of invention patent application after publication |