CN110754829A - Novel electric lifting chair - Google Patents
Novel electric lifting chair Download PDFInfo
- Publication number
- CN110754829A CN110754829A CN201911118657.7A CN201911118657A CN110754829A CN 110754829 A CN110754829 A CN 110754829A CN 201911118657 A CN201911118657 A CN 201911118657A CN 110754829 A CN110754829 A CN 110754829A
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- Prior art keywords
- outer cylinder
- motor
- sleeve
- base
- seat
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- 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
- A47C3/24—Chairs or stools with vertically-adjustable seats with vertical spindle
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Abstract
The invention discloses a novel electric lifting chair, which relates to the technical field of seats and comprises a base, a seat and a lifting device, wherein the lifting device comprises a motor fixedly connected with the base, a vertically arranged screw rod in transmission connection with an output shaft of the motor, a nut in threaded connection with the screw rod, a vertically arranged ejector rod fixedly connected with the nut, a sleeve sleeved on the circumference of the screw rod and a spring, the screw rod is rotatably connected with the base, the ejector rod can move along the axial direction of the sleeve, two ends of the spring respectively apply pressure to the bottom surfaces of the base and the seat, a linear guide rail is arranged in the sleeve to enable the nut to move up and down along the linear guide rail, and the ejector rod is fixedly connected with the bottom. So set up, solved the not simple and convenient problem that just has the potential safety hazard of operation of the height-adjusting of lift chair among the prior art.
Description
Technical Field
The invention relates to the technical field of seats, in particular to a novel electric lifting chair.
Background
As a common article in work and life, a plurality of chairs with convenient and fast functions, in particular to lifting chairs, are derived under the background that people pursue high-quality life, and the chairs are widely popularized and applied due to the advantage of adjustable height.
However, most of lifting chairs in the prior art are air pressure lifting chairs, a cylinder is arranged in each lifting chair, the cylinder is filled with nitrogen, a piston rod in the cylinder moves up and down to control the lifting of the chair seat, when the chair seat needs to be lowered, a person sits on the lifting chair, namely, the piston rod is pressurized, the lifting valve is pressed down, the piston rod descends gently, and the lifting valve is loosened after the piston rod descends to a required height; when the lifting valve is pressed down, if pressure is not applied to the seat, namely the piston rod is not applied, the piston rod rebounds to the highest point at a high speed, if the seat needs to be heightened, the seat can only be rebounded to the highest point and then lowered, and therefore the operation of height adjustment is inconvenient. Because the pressure in the cylinder is higher, the explosion is very easy to cause under the conditions of high temperature in summer or frequent lifting and improper operation of the chair seat, and people are injured by too many lifting chairs in China.
Therefore, how to solve the problems of inconvenient operation and potential safety hazard of height adjustment of the lifting chair in the prior art becomes an important technical problem to be solved by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a novel electric lifting chair, which solves the problems that the operation of adjusting the height of the lifting chair is not simple and convenient and the potential safety hazard exists compared with the lifting chair in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a novel electric lifting chair, which comprises:
a base;
a chair seat;
elevating gear, including with the relative rigid coupling of base motor, with the lead screw of the vertical setting of the output shaft transmission connection of motor, with lead screw threaded connection's nut, with ejector pin, the cover of the vertical setting of nut rigid coupling are in the sleeve, the spring of lead screw circumference, the lead screw with the base is rotationally connected, the ejector pin can be followed telescopic axial displacement, the both ends of spring respectively to the base and pressure is applyed to the bottom surface of seat support, be equipped with linear guide in the sleeve so that the nut is followed linear guide reciprocates, the ejector pin with the bottom surface fixed connection of seat support.
Preferably, the linear guide rail comprises a strip-shaped protrusion arranged in the sleeve along the vertical direction, the nut is provided with a groove, and the groove is engaged with the strip-shaped protrusion and moves up and down along the strip-shaped protrusion.
Preferably, the lifting device further comprises a first outer cylinder connected to the periphery of the sleeve and a second outer cylinder connected to the periphery of the ejector rod, the spring is arranged in the first outer cylinder and the second outer cylinder, the upper end of the first outer cylinder is flush with the upper end of the screw rod, the lower end of the first outer cylinder is fixedly connected to the base, the two ends of the second outer cylinder are flush with the two ends of the ejector rod, and the diameter of the first outer cylinder is larger than that of the second outer cylinder.
Preferably, the ejector rod is provided with a hollow structure for the screw rod to extend into.
Preferably, the output shaft of the motor is in transmission connection with the screw rod in a gear transmission mode.
Preferably, the device further comprises a switch for controlling the forward and reverse rotation of the motor.
Preferably, the chair further comprises armrests which are oppositely fixed on two opposite sides of the chair seat respectively, and the switch is arranged on the armrests.
Preferably, the spring is a compression spring which is sleeved on the outer peripheries of the ejector rod and the sleeve.
Preferably, the electric vehicle further comprises an electric storage device electrically connected with the motor and a wireless charging device electrically connected with the electric storage device.
Preferably, the device further comprises a remote controller for controlling the motor to rotate forwards and reversely.
According to the technical scheme provided by the invention, the rotation direction of the screw rod is controlled by controlling the positive and negative rotation of the motor, so that the nut sleeved on the screw rod is further controlled to lift, the ejector rod connected with the nut supports the lifting or descending of the seat, the arrangement of the spring enables the seat to be more stable during lifting, the functions of auxiliary support and shock absorption are also realized, meanwhile, the situation that the seat suddenly falls down due to the fact that the nut is connected with the screw rod through threads or the seat is not firm due to the fact that the nut is used for a long time or bears an overweight human body can be prevented, the spring enables the unsupported seat to slowly settle, the sudden falling feeling of a user can not be caused, and the whole height adjusting process is simple and convenient to operate and safe. The problem of the operation of the height adjustment of lift chair among the prior art not simple and convenient and have the potential safety hazard is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a lift chair according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a lifting device in an embodiment of the invention.
In fig. 1-2:
1-base, 2-chair seat, 3-motor, 4-screw rod, 5-nut, 6-ejector rod, 7-sleeve, 8-spring, 9-strip-shaped bulge, 10-groove, 11-first outer cylinder, 12-second outer cylinder, 13-switch, 14-handrail, 15-electricity storage device, 16-chair foot, 17-universal wheel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
An object of this embodiment is to provide a lift chair, which can solve the problems that the operation of adjusting the height of the lift chair in the prior art is not simple and convenient and has potential safety hazards.
Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the contents of the invention recited in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Referring to fig. 1-2, the present embodiment provides a lifting chair, which includes a base 1, a seat 2, a chair back fixedly connected to the seat 2, and a lifting device, wherein the lifting device specifically includes a motor 3, a lead screw 4, a nut 5, a top rod 6, a sleeve 7, and a spring 8, the motor 3 is fixedly connected to the base 1, the lead screw 4 is vertically disposed and is in transmission connection with an output shaft of the motor 3, the lead screw 4 is rotatably connected to the base 1 through a thrust bearing, the nut 5 is sleeved on the lead screw 4 and is in threaded connection therewith, the top rod 6 is vertically disposed and is fixedly connected to an upper end of the nut 5, the top rod 6 can move axially along the sleeve 7, the sleeve 7 is sleeved on a circumferential direction of the lead screw 4 and is fixedly connected to the base 1, two ends of the spring 8 respectively apply pressure to bottom surfaces of the base 1 and the seat 2, a linear, the top rod 6 is fixedly connected with the bottom surface of the chair seat 2.
So set up, thereby the direction of rotation of control lead screw 4 through the positive and negative rotation of control motor 3, thereby further control cover nut 5 on lead screw 4 goes up and down, linear guide's setting guarantees that nut 5 only carries out the elevating movement and irrotational, ejector pin 6 of being connected with nut 5 just supports seat support 2 and rises or descends, setting up of spring 8 makes seat support 2 more steady when going up and down, the auxiliary stay has also been played, the absorbing effect, also can prevent simultaneously because of nut 5 and lead screw 4's threaded connection because of using for a long time or bear the condition of seat support 2 whereabouts suddenly when overweight human body is not firm, spring 8 can make the comparatively slow settlement of seat support 2 that loses the support, can not cause sudden sense of falling to the user, and the process operation of whole height regulation is simple and convenient, and safe in utilization. The problem of the operation of the height adjustment of lift chair among the prior art not simple and convenient and have the potential safety hazard is solved.
Specifically, ejector pin 6 is equipped with the hollow structure that supplies lead screw 4 to stretch into, and along with the lift of nut 5, the top of lead screw 4 is kept away from gradually or in the screw in ejector pin 6, so sets up, and the power of transmitting between the lower extreme of ejector pin 6 and the nut 5 is more even, can make the process of whole lift chair height-adjusting more steady.
Further, in order to make the appearance of the lifting device more beautiful, the lifting device can be optionally configured to further include a first outer cylinder 11 connected to the periphery of the sleeve 7, and a second outer cylinder 12 connected to the periphery of the push rod 6, the upper end of the first outer cylinder 11 is flush with the upper end of the screw rod 4, the lower end of the first outer cylinder 11 is fixedly connected to the base 1, the two ends of the second outer cylinder 12 are flush with the two ends of the push rod 6, and the diameter of the first outer cylinder 11 is larger than that of the second outer cylinder 12, specifically, the upper end of the second outer cylinder 12 is fixedly connected to the bottom surface of the seat 2, the lower end of the second outer cylinder 12 moves up and down in the first outer cylinder 11 along with the lifting of the seat 2, the spring 8 is disposed in the first outer cylinder 11 and the second outer cylinder 12, specifically, the spring 8 is configured as a compression spring, and is still in a compression state to provide an auxiliary supporting force when the seat 2 is located at the highest position, two ends of the spring are respectively and fixedly connected with the upper end of the second outer cylinder 12 of the chair seat 2 and the lower end of the first outer cylinder 11, or one end of the spring 8 is fixedly connected as a fixed end, or two ends of the spring are not connected with any structure.
Preferably, in order to facilitate the movement of the lift chair, a plurality of legs 16 may be optionally provided on the base 1, and universal wheels 17 may be provided on the legs 16.
Specifically, the linear guide rail can be set to include a strip-shaped protrusion 9 arranged on the inner wall of the sleeve 7 along the vertical direction and a groove 10 arranged on the nut 5, the groove 10 is engaged with the strip-shaped protrusion 9 and can move up and down along the strip-shaped protrusion 9, and the arrangement is simple in structure and can ensure that the nut 5 only moves up and down without rotating along with the screw rod 4.
Further, the mode of the transmission connection between the output shaft of the motor 3 and the screw rod 4 can be selectively set to be gear transmission, the output shaft of the motor 3 and the screw rod 4 are arranged in parallel and are transmitted through a gear set, and in other embodiments, the transmission connection can be realized through a synchronous belt pulley. It should be noted that the output shaft of the motor 3 and the screw rod 4 are arranged on the same axis, and the motor 3 is arranged on the bottom surface of the base 1, so that transmission can be realized. Because the lift chair that this embodiment provided need bear human weight, and the vertical installation space between base 1 and the seat support 2 is less, and the output shaft of preferred motor 3 and lead screw 4 parallel arrangement and gear drive both have been fit for narrow and small space installation, also can make the lift process of lift chair have higher controllability and control accuracy, and life is also longer.
As a preferred embodiment, the opposite sides of the seat 2 can be respectively provided with the armrests 14 fixed opposite to the two sides, and the switch 13 for controlling the forward and reverse rotation of the motor 3 is arranged on the armrests 14, so that the operation of adjusting the seat 2 is convenient and easy, and the chair is also suitable for young students.
In order to widen the movable range of the lift chair, an electric storage device 15 electrically connected to the motor 3 and a wireless charging device electrically connected to the electric storage device 15 may be provided on the bottom surface of the base 1. The wireless charging device specifically comprises a power receiving coil which is relatively fixed on the base 1 and electrically connected with the power storage device 15 and a power transmission coil which is connected with an external power supply, the power transmission coil can be selectively embedded in the ground of an area where the lifting chair is used, and when charging is needed, the lifting chair is moved to a position where the power receiving coil and the power transmission coil can be electromagnetically induced. In order to ensure that the electric quantity of the lifting chair is sufficient and reliable and the residual electric quantity of the electric storage device 15 can be monitored at any time, an electric quantity display device electrically connected with the electric storage device 15 can be further selected, and the charging action can be selected when the residual electric quantity is 30%.
In addition, a remote controller for controlling the positive and negative rotation of the motor 3 and a signal receiving device of the adaptive remote controller electrically connected with the motor 3 can be arranged, the height of the seat 2 is controlled by the remote controller, if the lifting speed of the seat 2 needs to be controlled, a speed regulator electrically connected with the motor 3 can be arranged, and a regulating button of the speed regulator can be arranged on the armrest 14 or on the remote controller.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the invention comprise basic schemes, are independent from each other and are not restricted with each other, but can be combined with each other under the condition of no conflict, so that multiple effects are realized together.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A novel electric lift chair, which is characterized by comprising:
a base (1);
a seat (2);
the lifting device comprises a motor (3) which is fixedly connected with the base (1) relatively, a vertically arranged screw rod (4) which is in transmission connection with an output shaft of the motor (3), a nut (5) which is in threaded connection with the screw rod (4), a vertically arranged ejector rod (6) which is fixedly connected with the nut (5), a sleeve (7) which is sleeved on the circumference of the screw rod (4) and a spring (8), the screw rod (4) is rotatably connected with the base (1), the ejector rod (6) can move along the axial direction of the sleeve (7), two ends of the spring (8) respectively apply pressure to the bottom surfaces of the base (1) and the chair seat (2), a linear guide rail is arranged in the sleeve (7) to enable the nut (5) to move up and down along the linear guide rail, and the ejector rod (6) is fixedly connected with the bottom surface of the seat (2).
2. The lift chair according to claim 1, wherein said linear guide comprises a bar-shaped protrusion (9) arranged in the sleeve (7) in a vertical direction, said nut (5) being provided with a groove (10), said groove (10) engaging with said bar-shaped protrusion (9) and moving up and down along said bar-shaped protrusion (9).
3. The lift chair according to claim 1, wherein the lift device further comprises a first outer cylinder (11) connected to the outer periphery of the sleeve (7), and a second outer cylinder (12) connected to the outer periphery of the push rod (6), the spring (8) is disposed in the first outer cylinder (11) and the second outer cylinder (12), the upper end of the first outer cylinder (11) is flush with the upper end of the screw rod (4), the lower end of the first outer cylinder (11) is fixedly connected to the base (1), the two ends of the second outer cylinder (12) are flush with the two ends of the push rod (6), and the diameter of the first outer cylinder (11) is larger than that of the second outer cylinder (12).
4. The lift chair according to claim 1, characterized in that the push rod (6) is provided with a hollow structure into which the screw (4) extends.
5. The lift chair according to claim 1, characterized in that the transmission connection of the output shaft of the motor (3) to the screw (4) is a gear transmission.
6. The lift chair according to claim 1, further comprising a switch (13) for controlling the forward and reverse rotation of the motor (3).
7. The lift chair according to claim 6, further comprising armrests (14) fixed opposite to opposite sides of the seat (2), respectively, wherein the switch (13) is provided on the armrests (14).
8. The lift chair according to claim 1, wherein the spring (8) is a compression spring which is fitted around the outer circumference of the push rod (6) and the sleeve (7).
9. The lift chair according to claim 1, further comprising an electrical storage device (15) electrically connected to the motor (3), a wireless charging device electrically connected to the electrical storage device (15).
10. The lift chair according to claim 1, further comprising a remote control for controlling the forward and reverse rotation of the motor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118657.7A CN110754829A (en) | 2019-11-15 | 2019-11-15 | Novel electric lifting chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118657.7A CN110754829A (en) | 2019-11-15 | 2019-11-15 | Novel electric lifting chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110754829A true CN110754829A (en) | 2020-02-07 |
Family
ID=69337933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911118657.7A Pending CN110754829A (en) | 2019-11-15 | 2019-11-15 | Novel electric lifting chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110754829A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681198A (en) * | 2020-12-11 | 2021-04-20 | 山东汇强重工科技有限公司 | Vehicle-mounted foreign matter collector |
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| JPH02198513A (en) * | 1989-01-27 | 1990-08-07 | Yoshida Dental Mfg Co Ltd | Chair-raising or lowering device |
| CN2179049Y (en) * | 1993-12-22 | 1994-10-12 | 邹世才 | Chair fountain apparatus |
| US6000758A (en) * | 1996-07-26 | 1999-12-14 | Pride Health Care, Inc. | Reclining lift chair |
| JP2000084005A (en) * | 1998-09-11 | 2000-03-28 | Nisshin Iryoki Kk | Support structure of control panel of electric wheelchair |
| CN103565145A (en) * | 2012-07-31 | 2014-02-12 | 西安润丰电子科技有限责任公司 | Automatic lifting chair |
| CN204915357U (en) * | 2015-08-20 | 2015-12-30 | 王一坤 | Height -adjustable vehicle security seat chair |
| CN205842140U (en) * | 2016-07-20 | 2016-12-28 | 模阿斯电子（深圳）有限公司 | A kind of display lifting support |
| CN106308183A (en) * | 2016-08-24 | 2017-01-11 | 宁波市沃瑞斯机械科技有限公司 | Conference smart chair capable of positioning and self-walking |
| CN207653887U (en) * | 2017-06-15 | 2018-07-27 | 鞍山师范学院 | A kind of children's piano seat |
| CN108618436A (en) * | 2018-05-10 | 2018-10-09 | 芜湖金钥匙信息科技有限公司 | A kind of roller type office chair for preventing from rolling automatically |
| CN109106115A (en) * | 2018-10-27 | 2019-01-01 | 深圳市星鼎源科技有限公司 | A kind of electric lifting chair with deceleration device |
-
2019
- 2019-11-15 CN CN201911118657.7A patent/CN110754829A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02198513A (en) * | 1989-01-27 | 1990-08-07 | Yoshida Dental Mfg Co Ltd | Chair-raising or lowering device |
| CN2179049Y (en) * | 1993-12-22 | 1994-10-12 | 邹世才 | Chair fountain apparatus |
| US6000758A (en) * | 1996-07-26 | 1999-12-14 | Pride Health Care, Inc. | Reclining lift chair |
| JP2000084005A (en) * | 1998-09-11 | 2000-03-28 | Nisshin Iryoki Kk | Support structure of control panel of electric wheelchair |
| CN103565145A (en) * | 2012-07-31 | 2014-02-12 | 西安润丰电子科技有限责任公司 | Automatic lifting chair |
| CN204915357U (en) * | 2015-08-20 | 2015-12-30 | 王一坤 | Height -adjustable vehicle security seat chair |
| CN205842140U (en) * | 2016-07-20 | 2016-12-28 | 模阿斯电子（深圳）有限公司 | A kind of display lifting support |
| CN106308183A (en) * | 2016-08-24 | 2017-01-11 | 宁波市沃瑞斯机械科技有限公司 | Conference smart chair capable of positioning and self-walking |
| CN207653887U (en) * | 2017-06-15 | 2018-07-27 | 鞍山师范学院 | A kind of children's piano seat |
| CN108618436A (en) * | 2018-05-10 | 2018-10-09 | 芜湖金钥匙信息科技有限公司 | A kind of roller type office chair for preventing from rolling automatically |
| CN109106115A (en) * | 2018-10-27 | 2019-01-01 | 深圳市星鼎源科技有限公司 | A kind of electric lifting chair with deceleration device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681198A (en) * | 2020-12-11 | 2021-04-20 | 山东汇强重工科技有限公司 | Vehicle-mounted foreign matter collector |
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