CN105616098A - Medical chair allowing angle of backrest to be adjusted and preventing abrasion - Google Patents
Medical chair allowing angle of backrest to be adjusted and preventing abrasion Download PDFInfo
- Publication number
- CN105616098A CN105616098A CN201510985621.4A CN201510985621A CN105616098A CN 105616098 A CN105616098 A CN 105616098A CN 201510985621 A CN201510985621 A CN 201510985621A CN 105616098 A CN105616098 A CN 105616098A
- Authority
- CN
- China
- Prior art keywords
- backrest
- gear
- slide
- power
- 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.)
- Withdrawn
Links
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
Abstract
The invention provides a medical chair allowing the angle of a backrest to be adjusted and preventing abrasion. The intelligent medical chair comprises a backrest assembly (3) and a base assembly (4). The backrest assembly (3) comprises a backrest bottom plate (31) and a backrest panel (421) connected with the backrest bottom plate (31) through a backrest spring (43). The backrest bottom plate (31) and the backrest panel (421) are supported on a fixing shaft (41) on a base support (40) in a rotating mode through a bottom plate drive gear (311) and a panel drive gear (42). The bottom plate drive gear (311) is engaged with a power adjusting gear (37) coaxially connected with a worm wheel (371) and driven by the power adjusting gear in a power mode. The worm wheel (371) is engaged with a worm (372) in power connection with a motor and driven by the worm in a power mode.
Description
Technical field
The present invention relates to medical machinery field, especially a kind of backrest angle is adjustable and antiwear medical chair.
Background technology
In the medical field, it is often necessary to use some treatment chairs, for instance the operation chair of some dentistry or ophthalmology etc. The backrest angle of these medical chairs generally requires adjustable flexibly, to be adapted to the angles and positions adjustment needs in therapeutic process.
In some current medical chairs, the adjustment of backrest angle is often through power drive, for instance motor drives, and realizes. But, in the process used, generally require and the therapentic part of patient slowly adjusted with manually adjusting, 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 to manually adjust function. Therefore, power adjustment and the dynamical system compatibility manually adjusted and arranging of being independent of each other, arrange and bring difficulty often to the structure of whole medical chair and transmission. And multiple autonomous system is excessively intricately set and easily increases manufacturing cost, and increase the difficulty of follow-up maintenance.
Summary of the invention
It is an object of the invention to provide that a kind of a kind of backrest angle is adjustable and antiwear medical chair, it can overcome defect of the prior art.
A kind of backrest angle according to the present invention is adjustable and antiwear medical chair, including backrest module and base assembly, described backrest module includes backrest base plate and the back panel being connected by backrest spring with described backrest base plate, described backrest base plate and back panel are rotatably supported on the fixing axle on base support respectively through backplane drive gear and panel driving gear, described backplane drive gear is adjusted gear by the power coaxially connected with worm gear and engages and power drive, and described worm gear is by the worm engaging coupled with motor power 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 being connected to the screw flight manually adjusting wheel and is driven by it and can move left and right in the chute on movable slide, described screw rod is rotatably mounted on described movable slide by the bearing assembly of described movable slide end, described movable slide can slide up and down in the slip cavity of described base support bottom and and described base support between be provided with top pressure 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 is provided with through hole to be slidably matched thus being driven up and down by described rack slide with the driving cross bar on the rack slide that can be engaged by described power adjustment gear and drive thus slide up and down on vertical guide rod, so that described movable slide slides up or down to make described tooth-strip part engage with described panel driving Gear Contact or be disengaged from respectively in described slip cavity, 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 so that described protuberance top is pressed on the side of described vertical drive division by the guide rod top pressure spring top being pressed on described base support in the side relative with described protuberance, the described side of described vertical drive division is additionally provided with inclined plane groove in order to be moved down into so that engaging with the wedge-shaped part of described protuberance end when described tooth-strip part is disengaged from described panel driving gear at described movable slide, and make described vertical guide rod drive described rack slide to move so that the tooth bar of described rack slide adjusts gear with described power and is disengaged from towards described vertical drive division upon engagement, the wedge-shaped part surface of described protuberance end is provided with anti-abrasion pad, described anti-abrasion pad is that elastomeric material makes cooperation inaccurate in order to produce abrasion with described inclined plane groove after preventing the wedge-shaped part of described protuberance end from coordinating for a long time, cause described vertical guide rod can not accurately be held in place.
Pass through such scheme, owing to being provided with the screw drive assembly utilizing hand wheel to drive, it enables to rack member and moves left and right, thus driving the change in angular position of the panel backrest of backrest, it is possible to utilize the angle position manually and accurately controlling backrest and pace of change. And, utilize and drive the rack sleeve parts that can engage with little gear and can depart from, its in the starting stage that power adjustment drives, the described manual actuation inner thread sleeve with tooth bar can be moved downward and depart from back panel drive the engaging of gear so that do not affect the resting state adjusting handwheel when power drive adjusts backrest angle or not by the interference of this adjustment handwheel; And after the tooth bar associated by handwheel and respective gears disengage, by the recess that arranges on vertical portion, power drive wheel and rack slide block is disengaged from, so that rack slide does not affect the operation of described power driven gear.
Owing to the power source (motor) controlling to be adjusted by power backrest angle of the engagement/disengagement of the rack and pinion of manual association drives in the lump, thus reduce equipment cost and be easy to plant maintenance. Whole medical chair stable easy and simple to handle reliably.
Accompanying drawing explanation
Fig. 1 is that a kind of backrest angle of the present invention is adjustable and the overall structure schematic diagram of antiwear medical chair.
Detailed description of the invention
Below in conjunction with Fig. 1, the present invention is described in detail.
Backrest angle according to embodiment is adjustable and antiwear medical chair, including backrest module 3 and base assembly 4, described backrest module 3 includes backrest base plate 31 and the back panel 421 being connected by backrest spring 43 with described backrest base plate 31, described backrest base plate 31 and back panel 421 are rotatably supported on the fixing axle 41 on base support 40 respectively through backplane drive gear 311 and panel driving gear 42, described backplane drive gear 311 is adjusted gear 37 by the power coaxially connected with worm gear 371 and engages and power drive, described worm gear 371 is engaged and power drive by the worm screw 372 coupled with motor power, described panel driving gear 42 is engaged by the tooth-strip part on the upper side of inner thread sleeve 38 and drives, described inner thread sleeve 38 is taken turns screw rod 45 threaded engagement of 451 with being connected to manually adjust and is 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 of described movable slide 39 end, described movable slide 39 can slide up and down in the slip cavity 400 of described base support 40 bottom and and described base support 40 between be provided with top pressure 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 is provided with through hole to be slidably matched thus being driven by described rack slide about 33 with the driving cross bar 331 on the rack slide 33 that can be engaged by described power adjustment gear 37 and drive thus slide up and down on vertical guide rod 35, so that described movable slide 39 slides up or down to make described tooth-strip part contact engagement with described panel driving gear 42 or be disengaged from respectively in described slip cavity 400, 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 pressure in the side relative with described protuberance 351 by the guide rod top pressure spring 36 being pressed on described base support 40 so that described protuberance 351 top is pressed on the side of described vertical drive division 34, the described side of described vertical drive division 34 is additionally provided with inclined plane groove 341 in order to be moved down into so that engaging with the wedge-shaped part of described protuberance 351 end when described tooth-strip part is disengaged from described panel driving gear 42 at described movable slide 39, and make described vertical guide rod 35 drive described rack slide 33 to move so that the tooth bar of described rack slide 33 adjusts gear 37 with described power and is disengaged from towards described vertical drive division 34 upon engagement, the wedge-shaped part surface of described protuberance 351 end is provided with anti-abrasion pad 3510, described anti-abrasion pad 3510 makes cooperation inaccurate for elastomeric material in order to produce abrasion after preventing the wedge-shaped part of described protuberance 351 end from coordinating for a long time with described inclined plane groove 341, cause described vertical guide rod 35 can not accurately be held in place.
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, described in manually adjust wheel 451 upwards pull so that described tooth-strip part again engage with described backplane drive gear 311 time, electricity under described motor, and the tooth bar of described rack slide 33 and described power adjustment gear 37 engages again.
Owing to being provided with the screw drive assembly utilizing hand wheel to drive, it enables to rack member and moves left and right, thus driving the change in angular position of the panel backrest of backrest, it is possible to utilize the angle position manually and accurately controlling backrest and pace of change. And, utilize and drive the rack sleeve parts that can engage with little gear and can depart from, its in the starting stage that power adjustment drives, the described manual actuation inner thread sleeve with tooth bar can be moved downward and depart from back panel drive the engaging of gear so that do not affect the resting state adjusting handwheel when power drive adjusts backrest angle or not by the interference of this adjustment handwheel; And after the tooth bar associated by handwheel and respective gears disengage, by the recess that arranges on vertical portion, power drive wheel and rack slide block is disengaged from, so that rack slide does not affect the operation of 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. a backrest angle is adjustable and antiwear medical chair, including backrest module (3) and base assembly (4), described backrest module (3) includes backrest base plate (31) and the back panel (421) being connected by backrest spring (43) with described backrest base plate (31), described backrest base plate (31) and back panel (421) are rotatably supported on the fixing axle (41) on base support (40) respectively through backplane drive gear (311) and panel driving gear (42), described backplane drive gear (311) is adjusted gear (37) by the power coaxially connected with worm gear (371) and engages and power drive, described worm gear (371) is engaged and power drive by the worm screw (372) coupled with motor power, described panel driving gear (42) is engaged by the tooth-strip part on the upper side of inner thread sleeve (38) and drives, described inner thread sleeve (38) be connected to screw rod (45) threaded engagement manually adjusting wheel (451) and be driven by it and can the chute on movable slide (39) move left and right, described screw rod (45) is rotatably mounted on described movable slide (39) by the bearing assembly (450) of described movable slide (39) end, described movable slide (39) can slide up and down in the slip cavity (400) of described base support (40) bottom and and described base support (40) between be provided with top pressure 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) is provided with through hole to be slidably matched thus being driven up and down by described rack slide (33) with the driving cross bar (331) on the rack slide (33) that can be engaged by described power adjustment gear (37) and drive thus slide up and down on vertical guide rod (35), so that described movable slide (39) is slided up or down to make described tooth-strip part contact engagement with described panel driving gear (42) or be disengaged from respectively in described slip cavity (400), 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 pressed by guide rod top pressure spring (36) top being pressed on described base support (40) so that described protuberance (351) top is pressed on the side of described vertical drive division (34) in the side relative with described protuberance (351), the described side of described vertical drive division (34) is additionally provided with inclined plane groove (341) in order to be moved down into so that when described tooth-strip part is disengaged from described panel driving gear (42), wedge-shaped part with described protuberance (351) end engages described movable slide (39), and make described vertical guide rod (35) drive described rack slide (33) to move so that the tooth bar of described rack slide (33) adjusts gear (37) with described power and is disengaged from towards described vertical drive division (34) upon engagement, the wedge-shaped part surface of described protuberance (351) end is provided with anti-abrasion pad (3510), described anti-abrasion pad (3510) makes cooperation inaccurate for elastomeric material in order to produce abrasion after preventing the wedge-shaped part of described protuberance (351) end from coordinating for a long time with described inclined plane groove (341), cause described vertical guide rod (35) can not accurately be held in place.
2. backrest angle as claimed in claim 1 is adjustable and antiwear medical chair, and 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. backrest angle as claimed in claim 1 or 2 is adjustable and antiwear medical chair, wherein, described manually adjust wheel (451) upwards pull so that described tooth-strip part again engage with described backplane drive gear (311) time, electricity under described motor, and the tooth bar of described rack slide (33) and described power adjustment gear (37) engages again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985621.4A CN105616098A (en) | 2015-12-25 | 2015-12-25 | Medical chair allowing angle of backrest to be adjusted and preventing abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985621.4A CN105616098A (en) | 2015-12-25 | 2015-12-25 | Medical chair allowing angle of backrest to be adjusted and preventing abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105616098A true CN105616098A (en) | 2016-06-01 |
Family
ID=56031734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510985621.4A Withdrawn CN105616098A (en) | 2015-12-25 | 2015-12-25 | Medical chair allowing angle of backrest to be adjusted and preventing abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105616098A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214186A (en) * | 2007-12-30 | 2008-07-09 | 陈利忠 | Angle regulating device for blood-drawing chair back plate |
| 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 |
| CN104367438A (en) * | 2014-11-09 | 2015-02-25 | 张凤菊 | Medical multipurpose chair for department of pediatrics |
-
2015
- 2015-12-25 CN CN201510985621.4A patent/CN105616098A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214186A (en) * | 2007-12-30 | 2008-07-09 | 陈利忠 | Angle regulating device for blood-drawing chair back plate |
| 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 |
| CN104367438A (en) * | 2014-11-09 | 2015-02-25 | 张凤菊 | Medical multipurpose chair for department of pediatrics |
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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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160601 |