CN109330249A - Electronic self-locking seat riser - Google Patents
Electronic self-locking seat riser Download PDFInfo
- Publication number
- CN109330249A CN109330249A CN201811411982.8A CN201811411982A CN109330249A CN 109330249 A CN109330249 A CN 109330249A CN 201811411982 A CN201811411982 A CN 201811411982A CN 109330249 A CN109330249 A CN 109330249A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- stub shafts
- threaded rod
- hollow stub
- locking seat
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/002—Chair or stool bases
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses electronic self-locking seat risers, including hollow stub shafts, sleeve, threaded rod, the hollow parts clamping motor and energy supply control module of the hollow stub shafts, hollow stub shafts are carried on double-direction thrust ball bearing, motor working shaft passes through hollow stub shafts and double-direction thrust ball bearing is connected to lower section planetary gear set central gear, to drive planetary gear train to rotate, vehicle produces boss in the sleeve, and straight-tooth tooth form has been inserted as sun gear, and lower end is tapped with trapezoidal thread, double-direction thrust ball bearing set is carried on the boss in cylinder, sun gear is engaged with planetary gear set planetary gear in sleeve, planet wheels rotation, to drive entire sleeve to rotate, trapezoidal thread and the threaded rod similar shape and the connection that can cooperate in sleeve, sleeve opposite thread bar moves up and down, to realize the lifting of entire mechanism , and lead angle Ψ=5 ° of the trapezoidal thread < equivalent friction angle ρ '=5 ° 55 ', it can be realized self-locking.
Description
Technical field
The present invention relates to lifting device fields, and in particular to electronic self-locking seat riser.
Background technique
Liftable seat is because its is height-adjustable, so that people of different heights can be adjusted to oneself comfortable height
Degree, substantially increases the adaptability and comfort level of seat, and easy to use, therefore widely made in daily life and work
With with huge market occupancy volume.
Common chair lift mostly uses greatly atmospheric pressure pole as elevating mechanism currently on the market, furthermore also have using mechanically and
The chair lift of oil-pressure lifting mechanism, but audient is less at present.Filling nitrogen in the atmospheric pressure pole of air pressure rod-type elevating mechanism, concentration
Generally 99% or more, pressure also has strictly in one or two of atm higher, and for atmospheric pressure pole material and air seal
It is required that.However manufacturer uses the case where low-purity nitrogen gas, poor material production atmospheric pressure pole commonplace, these atmospheric pressure poles are often
There are poorly sealed Deng quality dissatisfactions, there is great security risks.In addition, atmospheric pressure pole rises repeatedly in use
Drop, friction, also can gradually lead to sealing performance decline and the excessively high factor of environment temperature is also possible to cause safety problem.
In recent years, the case that Pneumatic type lifting machine occurs to explode, cause casualties emerges one after another.Although wherein most
Atmospheric pressure pole explosion be as having purchased the unqualified product of inferior quality of quality caused by.But atmospheric pressure pole itself in hot environment or
In the excessively frequent situation of rubbing, temperature cylinder can all be caused to rise sharply, internal gas expansion, air pressure become larger, and due to making
Material ageing problem, seal also can performance decline, burst out so as to cause gas, it may occur however that explosion.Therefore atmospheric pressure pole
This birth defect, cause its safety to have certain problems.
Summary of the invention
It is an object of the invention to overcome the above-mentioned problems in the prior art, electronic self-locking seat elevator is provided
Structure not only solves using Pneumatic type lifting mechanism safety problem that may be present, while being also able to achieve self-locking and motor control,
Improve operation convenience, safety.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions:
Electronic self-locking seat riser, including hollow stub shafts, sleeve, threaded rod, the sky in the hollow stub shafts
Center portion packing folder reversing motor and power supply, control module, hollow stub shafts lower end are carried on double-direction thrust ball bearing, motor work
Make axis to be directly connected to across hollow stub shafts with lower section planetary gear set central gear, planetary gear train driving wheel and planet is driven to rotate
Dynamic, vehicle produces boss in the sleeve, and has inserted straight-tooth tooth form as sun gear, and lower end is tapped with trapezoidal thread, Bidirectional pulling
Power ball bearing set is carried on the boss in cylinder, and the sun gear in sleeve is engaged with the planetary gear in planetary gear set, with planet
Wheel rotation the trapezoidal thread and the threaded rod similar shape in sleeve and can cooperate so that entire sleeve be driven to rotate
Connection drives lower section threaded rod to rotate, to realize the lifting of entire mechanism, and the spiral shell of the trapezoidal thread by the rotation of sleeve
Line lift angle Ψ=5 ° < equivalent friction angle ρ '=5 ° 55 ', to realize self-locking.
Further, the hollow stub shafts upper end is connect with seat, and connection type can be used screw and is threadedly coupled, or
According to other connection type changing mechanism of existing seat.
Further, the motor and power supply, control module, including power supply, control stick, fanning strip, pass through lever principle
Realize that power electrode accesses direction change, to realize motor positive and inverse to variation.
Further, the sleeve inner convex platform is contacted with double-direction thrust ball bearing, double-direction thrust ball bearing outer ring with it is described
Sleeve lining transition fit, the outer ring transition fit of the double-direction thrust ball bearing and hollow stub shafts lower end.
Further, the steering of the planetary gear train central gear directly connected by motor steering control, centre tooth
Wheel drives sun gear in planetary gear train planetary gear and the sleeve being engaged with, to realize sleeve course changing control, realizes sleeve pair
In the lifting of threaded rod, to realize the lifting of the seat surface of chair connected above with hollow stub shafts
Further, lead angle Ψ=5 ° of trapezoidal thread < equivalent friction angle ρ '=5 ° 55 ' (meet trapezoidal thread certainly
The condition of lock is that lead angle is less than equivalent friction angle) it is self-locking so as to realize.
Further, the threaded rod lower end is connect with Seat foot frame, and connection type is also using threaded connection.
Income effect of the invention is:
1, using mechanical lifting gear, evaded risk of explosion existing for Pneumatic lifting mechanism, improved safety,
Mechanical lifting gear of the invention will not cause pneumatic even if frequently use leads to parts depreciation, aging, is even broken
Serious security problem existing for formula mechanism.
2, using motor driven, user is sitting on chair the lifting that seat height can be realized using control stick, is not necessarily to
It stands up, and the precision of screw thread elevating mechanism is higher compared with pneumatic type, more accurate freely adjust can arrive required height.
3, compared to other similar mechanical lifting gear, the present invention uses screw thread self-locking, without additional locking device,
Components are reduced, failure rate is reduced, it is simpler reliable.
4, elevating mechanism of the invention, can be adapted to various seats and foot prop on the market, and user can according to need selection
Seat style, control stick pattern, battery types etc., it might even be possible to use remote control device, flexibility is high, strong applicability, is worth big
It pushes wide.
It, still can be with 5, even if the present invention causes mechanism that can not be driven by motor due to various reasons in use
By can be manually rotated the lifting of sleeve implementation mechanism, keep elevating function unaffected, this is that traditional, pneumatic formula structure can not phase
Ratio.
6, screw thread standard used in the present invention, the form of gear tooth all use national standard, and processing cost is lower, is made
Double-direction thrust ball bearing is also state's tender, cheap, therefore lower production costs.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is an embodiment schematic diagram of electronic self-locking seat riser of the present invention:
Fig. 2 is the enlarged drawing of the part a1 in Fig. 1:
Fig. 3 is the enlarged drawing of the part b2 in Fig. 1:
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1-3, the present invention is electronic self-locking seat riser, including hollow stub shafts 1, sleeve, threaded rod
4, transverse plane with chair top for connecting on hollow stub shafts 1, hollow parts clamping reversing motor 7 and power supply in hollow stub shafts 1
Control module a1, hollow stub shafts lower end are carried on 6 upper end of double-direction thrust ball bearing, and 6 lower end of double-direction thrust ball bearing is carried on set
The working shaft of the boss 21 that vehicle is produced in cylinder, motor 7 passes through hollow stub shafts 1 and double-direction thrust ball bearing and lower section planetary gear set b2
Central gear 15 be connected, by motor 7 rotation drive central gear 15 rotation, thus drive with planetary gear set center
The rotation for two planetary gears 14 that gear 15 engages, sleeve lining insert the row in straight tooth-shaped sun gear 22 and planetary gear set b2
Star-wheel 14 engages, and is rotated by the sun gear 22 in the sleeve that engages with planetary gear 14 with moving sleeve, sleeve lower end is tapped with trapezoidal spiral shell
Screw thread similar shape on line 31, trapezoidal thread 31 and threaded rod 4 and the connection that cooperates, the rotation for passing through sleeve drive threaded rod 4
Rotation (meet ladder to realize lifting, and lead angle Ψ=5 ° of the trapezoidal thread < equivalent friction angle ρ '=5 ° 55 '
The condition of shape screw thread self-locking is that lead angle is less than equivalent friction angle) it is self-locking to realize.
Wherein, referring to Fig.1, motor-driven threaded self-locking seat riser includes hollow stub shafts 1, is held level with both hands in short axle
Face is only represented in threaded connection for connecting with seat, in figure for cooperating the through-hole of stud, should not be understood as this hair
Bright limitation.
Wherein, the hollow parts clamping reversing motor 7 in hollow stub shafts 1, power supply and control module a1 pass through referring to Fig. 2
Lifting or pushing control stick 5 is realized the decline and rising of fanning strip 12 by lever principle, realizes control stick 5 by spring 11
It resetting, circuit conduction module 9 and 10 is fixed on fanning strip 12, when fanning strip 12 declines, module 9 accesses circuit, and circuit is connected,
Motor rotates forward；When fanning strip 12 rises, module 10 accesses circuit, circuit conducting, and current direction changes, motor reversal.
The general diagram for only realizing motor control in the figure at expression, due to the flexibility of the invention, specific manipulation side
Formula can change according to user's demand, should not be understood as limitation of the invention.
Wherein, it drives the central gear 15 of cyclic train b2 to rotate after motor 7 rotates, makes the tooth being connected directly with motor 7
Wheel 15 drives two planetary gears 14 being engaged with to rotate as the driving wheel in planetary gear train.Load the pivoted arm 8 of planetary gear 14
It is loaded on hollow stub shafts 1, and can relatively rotate with hollow stub shafts 1, to realize the revolution of planetary gear 14, then by planet
Wheel 14 drives the rotation of sun gear 22 to rotate with moving sleeve.
Wherein, in one embodiment of the present invention easy to disassemble, sleeve is made of upper bush 2 and lower sleeve 3, upper bush 2
With key connection (3 one of key and sleeve) between lower sleeve 3, they can be rotated synchronously, and wherein vehicle produces boss in upper bush 2
21, and 2 inner wall of upper bush has inserted straight-tooth tooth form sun gear 22, is tapped with trapezoidal thread 31 in sleeve 3.
Have the boss 21 for carrying double-direction thrust ball bearing 6 in upper bush 2, the lower end surface of double-direction thrust ball bearing 6 with
Boss in upper bush 2 is in contact, and outer surface and 2 inner surface of upper bush carry out transition at 6 maximum gauge of double-direction thrust ball bearing
Cooperation.Surface and 1 lower extending end outer peripheral surface transition fit of hollow stub shafts at 6 inner hole minimum diameter of double-direction thrust ball bearing.By
Double-direction thrust ball bearing 6, hollow stub shafts 1 are realized with upper bush 2 and mutually rotate and be independent of each other, i.e., when will not be gone up and down on seat
The influence of axle sleeve rotation, when same seat rotation, will not drive axle sleeve to rotate and cause integral elevating.
Upper bush 2 is driven to transmit torque to lower sleeve 3 by key by planetary gear train b2, the screw thread 31 on lower sleeve 3
Be similar shape screw thread with the get on the bus screw thread of system of threaded rod 4, and lower sleeve 3 is connected through a screw thread with threaded rod 4, by lower sleeve 3 and
Lifting is realized in the mutual cooperation of threaded rod 4.Due to lead angle Ψ=5 ° < equivalent friction angle ρ '=5 ° 55 ' of the trapezoidal thread
(meeting the self-locking condition of trapezoidal thread is that lead angle is less than equivalent friction angle), meets condition of self-locking, i.e. user is sitting in seat
When on chair, if axle sleeve 3 will not move on vertical direction (z-axis direction) there is no rotation, realization is self-locking,
Meet invention expection and requirement.
Wherein, double-direction thrust ball bearing 6 can carry two-way axial load, user's weight transmitting to hollow stub shafts 1
Axis body on, user's weight and the self weight of its own and internal part are transferred to double-direction thrust ball bearing again by hollow stub shafts 1
6, upper bush 2 is transferred loads to via double-direction thrust ball bearing 6, upper bush 2 is passed to lower sleeve 3, and lower sleeve 3 again will
On all load transmissions to the trapezoidal thread of it and threaded rod 4.
Wherein, 4 lower end of threaded rod is connect with foot prop, can also fill switching device directly using included threaded connection,
It is adapted to different model foot prop, embodies flexibility and universality of the invention.
It, can not the burst shape such as driving motor or manipulation device damage when occurring that electric quantity of power supply is too low due to the advantage of the design
When condition, user can still can be manually rotated upper bush 2 and lower sleeve 3, the lifting of realization device, embody of the invention practical
Property.The accident being likely to occur when in order to avoid using, 4 upper end larger diameter of threaded rod limit the rising limit of device,
Falling-threshold is limited by pinch, and in principle during decline, threaded rod topmost topmost no more than lower sleeve 3, is trapped
3 length of cylinder are determined by actual demand, embody safe and reliable and flexibility of the invention.
In the description of this specification, the descriptions such as reference term " one embodiment ", " example ", " specific example " mean to tie
Specific features, mechanism, the material for closing embodiment or example description live feature and are contained at least one embodiment of the present invention
Or in example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.And
And specific features, mechanism, material or the feature of description can be in any one or more of the embodiments or examples with suitable
Mode combine.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (9)
1. electronic self-locking seat riser, including hollow stub shafts (1), sleeve, threaded rod (4), it is characterised in that: hollow short
The interior hollow parts clamping motor (7) of axis (1) and energy supply control module (a1), vehicle is produced boss (21) in sleeve, is inserted in sleeve
Have straight tooth-shaped sun gear (22), lower end is tapped with trapezoidal thread (31) in sleeve, lower thread in the screw thread and sleeve of threaded rod (4)
(31) similar shape and the connection that can cooperate.
2. electronic self-locking seat riser according to claim 1, it is characterised in that: the hollow stub shafts (1)
Upper transverse plane is connect with chair top, and threaded rod (4) lower end is connect with foot prop.
3. a kind of electronic self-locking seat riser according to claim 1, it is characterised in that: the trapezoidal thread
(31) with lead angle Ψ=5 ° of the trapezoidal thread of threaded rod (4).
4. electronic self-locking seat riser according to claim 3, it is characterised in that: have below hollow stub shafts (1)
Double-direction thrust ball bearing (6), hollow stub shafts (1) are carried on double-direction thrust ball bearing (6), and double-direction thrust ball bearing (6) is held
It is loaded on the boss (21) of vehicle in sleeve.
5. electronic self-locking seat riser according to claim 4, it is characterised in that: the working shaft of motor (7) is worn
It crosses hollow stub shafts (1) and double-direction thrust ball bearing (6) and the central gear (15) of lower section planetary gear set (b2) is connected directly, planet
Two planetary gears (14) and central gear (15) in wheel group (b2) are intermeshed, and the pivoted arm (8) for loading planetary gear (14) loads
On hollow stub shafts (1), and it can relatively rotate with hollow stub shafts (1).
6. electronic self-locking seat riser according to claim 5, it is characterised in that: cylinder interpolation is formed with straight tooth-shaped too
Sun wheel (22) is engaged with planetary gear (14), to drive central gear (15) rotation by the rotation of motor (7), realizes planetary gear
(14) revolution, then drive sun gear (22) rotation to rotate with moving sleeve by planetary gear (14).
7. electronic self-locking seat riser according to claim 6, it is characterised in that: energy supply control module (a1)
In, by the decline and rising of control stick (5) control fanning strip (12), to control circuit conducting mould fixed on fanning strip (12)
Current direction after block (9) and (10) control access conduction module is realized to control the positive and reverse steering of motor (7) to planet
The course changing control of wheel group (b2) and sleeve, to realize the lifting of hollow stub shafts (1).
8. electronic self-locking seat riser according to claim 7, it is characterised in that: sleeve by upper bush (2) and
Lower sleeve (3) composition, with key connection between upper bush (2) and lower sleeve (3), they are rotated synchronously, wherein upper bush (2) interior vehicle
It produces boss (21), and upper bush (2) inner wall has inserted straight-tooth tooth form sun gear (22), is tapped with trapezoidal thread in lower sleeve (3)
(31)。
9. electronic self-locking seat riser according to claim 8, it is characterised in that: threaded rod (4) upper end is larger
The rising limit of device is limited at diameter, falling-threshold is limited by the pinch installed, and during decline, threaded rod is most
Upper end is no more than lower sleeve (3) topmost, and the length of lower sleeve (3) and threaded rod (4) is determined by actual demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811411982.8A CN109330249A (en) | 2018-11-25 | 2018-11-25 | Electronic self-locking seat riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811411982.8A CN109330249A (en) | 2018-11-25 | 2018-11-25 | Electronic self-locking seat riser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109330249A true CN109330249A (en) | 2019-02-15 |
Family
ID=65317487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811411982.8A Pending CN109330249A (en) | 2018-11-25 | 2018-11-25 | Electronic self-locking seat riser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109330249A (en) |
Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557454A (en) * | 1983-07-20 | 1985-12-10 | Urella Anthony R | Lift mechanism for a dental chair |
| FR2746002A1 (en) * | 1996-03-15 | 1997-09-19 | Sehp Matifas | Back=up actuating mechanism for linear electrical motor of hospital bed |
| JP2000253618A (en) * | 1999-03-04 | 2000-09-14 | Aichi Electric Co Ltd | Motor-driven actuator |
| KR20020026935A (en) * | 2002-03-21 | 2002-04-12 | 김덕철 | Ascending and descending Apparadus for chairs |
| CN2509936Y (en) * | 2001-11-23 | 2002-09-11 | 高航 | Electric lifting seat |
| JP2004024831A (en) * | 2002-05-10 | 2004-01-29 | Takeda Giken:Kk | Work auxiliary device and working method |
| CN2607870Y (en) * | 2003-04-14 | 2004-03-31 | 崔雪海 | Electric lifting chair |
| JP2005127395A (en) * | 2003-10-22 | 2005-05-19 | Nsk Ltd | Synchronous driving device of rotational direction and axial direction |
| JP2007151787A (en) * | 2005-12-05 | 2007-06-21 | Takara Belmont Co Ltd | Lifting device for hairdressing chair or the like |
| CN101264723A (en) * | 2007-03-14 | 2008-09-17 | 奥迪股份公司 | Height adjustment device for motor vehicles |
| JP2008312436A (en) * | 2007-05-15 | 2008-12-25 | Ntn Corp | Electric direct acting actuator and electric braking device |
| JP2010223277A (en) * | 2009-03-20 | 2010-10-07 | Soki Sekkei:Kk | Linear actuator |
| JP2012067771A (en) * | 2010-09-21 | 2012-04-05 | Mitsuba Corp | Linear actuator |
| CN202981047U (en) * | 2012-11-15 | 2013-06-12 | 重庆洋迪机电有限公司 | Self-locking swivel chair |
| CN204244001U (en) * | 2014-11-19 | 2015-04-01 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod of electric machine built-in |
| JP2015149799A (en) * | 2014-02-05 | 2015-08-20 | トヨタ紡織株式会社 | hollow motor |
| CN105089408A (en) * | 2014-05-15 | 2015-11-25 | 德昌电机(深圳)有限公司 | Electric lifting device for automobile stern door |
| CN106122407A (en) * | 2015-05-04 | 2016-11-16 | 斯泰必鲁斯有限公司 | Screw-driven assembly and the seat assembly with screw-driven assembly |
| US20170097112A1 (en) * | 2014-06-20 | 2017-04-06 | Alfred Kärcher Gmbh & Co. Kg | Coupling arrangement for screw coupling |
| CN206149082U (en) * | 2016-07-01 | 2017-05-03 | 浙江捷昌线性驱动科技股份有限公司 | Electric pushing rod |
| CN206219132U (en) * | 2016-11-29 | 2017-06-06 | 苏州宏远电子有限公司 | Lifting device |
| CN206324515U (en) * | 2016-08-12 | 2017-07-14 | 西南大学 | A kind of Pneumatic type lifting chair safety pre-warning system and chair lift |
| CN108386513A (en) * | 2018-03-22 | 2018-08-10 | 上海理工大学 | A kind of design method of harmonic gear drive |
| CN108378609A (en) * | 2018-05-22 | 2018-08-10 | 安吉辰霖家具有限公司 | A kind of swivel chair with chassis driving device |
| CN209825887U (en) * | 2018-11-25 | 2019-12-24 | 倪旭涛 | Electric self-locking type seat lifting mechanism |
-
2018
- 2018-11-25 CN CN201811411982.8A patent/CN109330249A/en active Pending
Patent Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557454A (en) * | 1983-07-20 | 1985-12-10 | Urella Anthony R | Lift mechanism for a dental chair |
| FR2746002A1 (en) * | 1996-03-15 | 1997-09-19 | Sehp Matifas | Back=up actuating mechanism for linear electrical motor of hospital bed |
| JP2000253618A (en) * | 1999-03-04 | 2000-09-14 | Aichi Electric Co Ltd | Motor-driven actuator |
| CN2509936Y (en) * | 2001-11-23 | 2002-09-11 | 高航 | Electric lifting seat |
| KR20020026935A (en) * | 2002-03-21 | 2002-04-12 | 김덕철 | Ascending and descending Apparadus for chairs |
| JP2004024831A (en) * | 2002-05-10 | 2004-01-29 | Takeda Giken:Kk | Work auxiliary device and working method |
| CN2607870Y (en) * | 2003-04-14 | 2004-03-31 | 崔雪海 | Electric lifting chair |
| JP2005127395A (en) * | 2003-10-22 | 2005-05-19 | Nsk Ltd | Synchronous driving device of rotational direction and axial direction |
| JP2007151787A (en) * | 2005-12-05 | 2007-06-21 | Takara Belmont Co Ltd | Lifting device for hairdressing chair or the like |
| CN101264723A (en) * | 2007-03-14 | 2008-09-17 | 奥迪股份公司 | Height adjustment device for motor vehicles |
| JP2008312436A (en) * | 2007-05-15 | 2008-12-25 | Ntn Corp | Electric direct acting actuator and electric braking device |
| JP2010223277A (en) * | 2009-03-20 | 2010-10-07 | Soki Sekkei:Kk | Linear actuator |
| JP2012067771A (en) * | 2010-09-21 | 2012-04-05 | Mitsuba Corp | Linear actuator |
| CN202981047U (en) * | 2012-11-15 | 2013-06-12 | 重庆洋迪机电有限公司 | Self-locking swivel chair |
| JP2015149799A (en) * | 2014-02-05 | 2015-08-20 | トヨタ紡織株式会社 | hollow motor |
| CN105089408A (en) * | 2014-05-15 | 2015-11-25 | 德昌电机(深圳)有限公司 | Electric lifting device for automobile stern door |
| US20170097112A1 (en) * | 2014-06-20 | 2017-04-06 | Alfred Kärcher Gmbh & Co. Kg | Coupling arrangement for screw coupling |
| CN204244001U (en) * | 2014-11-19 | 2015-04-01 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod of electric machine built-in |
| CN106122407A (en) * | 2015-05-04 | 2016-11-16 | 斯泰必鲁斯有限公司 | Screw-driven assembly and the seat assembly with screw-driven assembly |
| CN206149082U (en) * | 2016-07-01 | 2017-05-03 | 浙江捷昌线性驱动科技股份有限公司 | Electric pushing rod |
| CN206324515U (en) * | 2016-08-12 | 2017-07-14 | 西南大学 | A kind of Pneumatic type lifting chair safety pre-warning system and chair lift |
| CN206219132U (en) * | 2016-11-29 | 2017-06-06 | 苏州宏远电子有限公司 | Lifting device |
| CN108386513A (en) * | 2018-03-22 | 2018-08-10 | 上海理工大学 | A kind of design method of harmonic gear drive |
| CN108378609A (en) * | 2018-05-22 | 2018-08-10 | 安吉辰霖家具有限公司 | A kind of swivel chair with chassis driving device |
| CN209825887U (en) * | 2018-11-25 | 2019-12-24 | 倪旭涛 | Electric self-locking type seat lifting mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 孙立峰;: "升降可调激光测试转台结构设计方案研究", 西部皮革, no. 18 * |
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