CN201641124U - Free lifting chair - Google Patents
Free lifting chair Download PDFInfo
- Publication number
- CN201641124U CN201641124U CN2010201424766U CN201020142476U CN201641124U CN 201641124 U CN201641124 U CN 201641124U CN 2010201424766 U CN2010201424766 U CN 2010201424766U CN 201020142476 U CN201020142476 U CN 201020142476U CN 201641124 U CN201641124 U CN 201641124U
- Authority
- CN
- China
- Prior art keywords
- chair
- sleeve
- support
- leg
- screw 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a free lifting chair, comprising a chair back, a chair leg for supporting the chair back and a chair seat, wherein a connecting bracket is arranged between the chair back and the chair leg and is respectively connected with the chair back and the chair leg, the connecting bracket is rotatably connected with a transmission rod, the chair leg is a lifting leg comprising a sleeve cover and a sleeve, one end of the sleeve cover is connected with the connecting bracket and the other end of the sleeve cover is arranged inside the sleeve, the sleeve cover is in sliding connection with the sleeve, the sleeve cover is internally provided with a support sleeve and the lower end of the support sleeve is arranged at the bottom of the sleeve, the upper end of the support sleeve is provided with a nut which is in inner threaded connection with a screw rod, the upper part of the screw rod is rotatably connected with the connecting bracket, the upper end of the screw rod is provided with a second helical gear and is engaged with a first gear on the transmission rod, and the chair seat is fixedly connected with the sleeve cover. The free lifting chair has the advantages of convenient adjustment in lifting and high safety.
Description
Technical field
The utility model relates to a kind of free lifting chair.
Background technology
At present, most of chairs do not possess elevating function.But under many circumstances, chair lift is necessary equipment.The chair that has part to have elevating function is now realized by using pin to fasten device, but pretty troublesome when this chair is regulated lifting, people often only once regulate when buying, just seldom move it later on, this just makes this chair lift lose the value of oneself.The chair that has some to have elevating function in addition is that the adjusting by air pressure realizes, but often there is potential safety hazard in this chair.Therefore, design the problem that a kind of people of convenient, fast, practical, safe free lifting chair face.
The utility model content
The purpose of this utility model provides the convenient and safe free lifting chair of a kind of lift adjustment.
To achieve these goals, the utility model adopts following technical scheme:
A kind of free lifting chair, comprise: the chair back, be used to support the chair leg and the seat support of the chair back, between the chair back and chair leg, be provided with to be connected support and to connect support and be connected with the chair leg with the chair back respectively, on the connection support, be rotatably connected to transmission pole, the chair leg adopts the lifting leg, the lifting leg comprises: tube cover and sleeve, one end of tube cover be connected the support connection, the other end of tube cover is located in the sleeve and the tube cover is slidingly connected with sleeve, the lower end that is provided with support tube and support tube in the tube cover is located at the bottom of sleeve, upper end at support tube is provided with nut, be connected with screw rod at nut inner thread, the top of screw rod is rotationally connected with being connected support, on the upper end of screw rod, be provided with second helical gear and with first gears engaged that is located on the transmission pole, seat support is fixedlyed connected with tube cover.
Compared with prior art, the utlity model has following advantage:
After the utility model adopts and to place screw rod in tube cover and the sleeve, avoided user's clothing etc. to be involved in the screw rod of rotation, thereby security performance of the present utility model is improved.It is that the position limiting structure of polished rod can guarantee that again screw rod of the present utility model carries out lift in height in sleeve, avoid slippage for the threaded rod Lower Half that screw rod is made the first half.Bearing etc. is wrapped in the casing, make long service life of the present utility model free from environmental pollution again.Shake just energy fast lifting of handle, make the utility model lift adjustment convenient, reliable.
Description of drawings
Fig. 1 is the front view of the utility model free lifting chair.
Fig. 2 is the equal proportion enlarged drawing of the gear train 31 in the lifting leg of the utility model free lifting chair.
Fig. 3 is the equal proportion enlarged drawing of the support frame 32 in the lifting leg of the utility model free lifting chair.
Fig. 4 is the screw rod 321 structure enlarged drawings of the utility model free lifting chair.
The specific embodiment
A kind of free lifting chair, comprise: the chair back 1, be used to support the chair leg and the seat support 4 of the chair back 1, between the chair back 1 and chair leg, be provided with to be connected support 320 and to connect support 320 and be connected with the chair leg with the chair back 1 respectively, on connection support 320, be rotatably connected to transmission pole 311, the chair leg adopts lifting leg 3, lifting leg 3 comprises: tube cover 323 and sleeve 324, one end of tube cover 323 be connected support 320 connections, the other end of tube cover 323 is located in the sleeve 324 and tube cover 323 is slidingly connected with sleeve 324, the lower end that is provided with support tube 322 and support tube 322 in tube cover 323 is located at the bottom of sleeve 324, be provided with nut 319 in the upper end of support tube 322, be connected with screw rod 321 at nut 319 internal threads, the top of screw rod 321 be connected support 320 and be rotationally connected, be provided with second helical gear 314 on the upper end of screw rod 321 and meshing with first gear 312 that is located on the transmission pole 311, seat support 4 is fixedlyed connected with tube cover 323.
In the present embodiment,
Be connected with polished rod 3212 in the lower end of screw rod 321, the first half that is about to screw rod 321 is made threaded rod 3211, and Lower Half is made polished rod 3212; Be arranged with footmuff 325 in the lower end of sleeve 324; On transmission pole 311, be connected with handle 2.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Shown in Figure 1 is the front view of the utility model free lifting chair.The free lifting chair is made up of the chair back 1, handle 2, lifting leg 3, seat support 4, base 5.Be provided with to be connected support 320 and to connect support 320 between the chair back 1 and chair leg and be connected with the chair leg with the chair back 1 respectively, be rotatably connected to transmission pole 311 on connection support 320, chair leg employing lifting leg 3 comprises gear train 31 and support frame 32 in the lifting leg 3.Seat support 4 is fixedlyed connected with the tube cover 323 in the lifting leg 3.
The equal proportion enlarged drawing of the gear train 31 in the lifting leg 3 of shown in Figure 2 is the utility model free lifting chair.Gear train 31 comprises transmission pole 311, first helical gear 312, clutch shaft bearing 313, second helical gear 314, second bearing 315, the 3rd bearing 316, the 4th bearing 317, casing 318, connects support 320, nut 319.
The equal proportion enlarged drawing of the support frame 32 in the lifting leg of shown in Figure 3 is the utility model free lifting chair.Support frame 32 comprises screw rod 321, support tube 322, tube cover 323, sleeve 324, footmuff 325, plastic rails 326.
When handle 2 rotates, drive the rotation of the transmission pole 311 in the lifting leg 3, and then drive 312 rotations of first helical gear.First helical gear 312 and 314 engagements of second helical gear when first helical gear 312 rotates, drive second helical gear 314 and rotate.
Connecting support 320 is the devices that connect the chair leg and the chair back 1, because screw rod 321 is spiral escalation or decline, and the chair back 1 will be fixed, and therefore connecting support 320 can play fixation; Casing 318 is fixed clutch shaft bearing 313, second bearing 315, the 3rd bearing 316 simultaneously, can be so that gear and bearing be unlikely to be exposed to the outside, can better prolong lubrication, can make gear and bearing machine oil not pollute external environment again, prolong service life.
Clutch shaft bearing 313 in the lifting leg 3 and the 3rd bearing 316 both can support transmission poles 311, can play lubricated effect again.
One end of tube cover 323 with is connected support 320 and connects, the other end of tube cover 323 is located in the sleeve 324 and tube cover 323 and sleeve 324 be slidingly connected.Screw rod 321 passes from tube cover 323 and the upper end is provided with second helical gear 314, and as the rotating shaft of second helical gear 314, when second helical gear 314 rotated, screw rod 321 will rotate thereupon.The lower end that is provided with support tube 322 and support tube 322 in tube cover 323 is located at the bottom of sleeve 324, is provided with nut 319 in the upper end of support tube 322, and thus, screw rod 321 and nut 319 have just been formed one promptly to stop be locking device.The first half of screw rod 321 is made threaded rod 3211, and Lower Half is made polished rod 3212.When screw rod 321 rises to threaded rod 3211 ends, stop immediately rising, this has just played spacing function, has avoided screw rod 321 slippages.During screw rod 321 oscilaltions, drive 323 oscilaltions thereupon of tube cover, also just driven seat support 4 oscilaltions.
Because screw rod 321 is rotation oscilaltions, and 323 on tube cover needs oscilaltion, therefore, be provided with plastic rails 326 at the inwall of sleeve 324, avoided tube cover 323 rotation and liftings.
Be arranged with footmuff 325 in the lower end of sleeve 324.
Claims (4)
1. free lifting chair, comprise: the chair back (1), be used to support the chair leg and the seat support (4) of the chair back (1), it is characterized in that, between the chair back (1) and chair leg, be provided with to be connected support (320) and to connect support (320) and be connected with the chair back (1) and chair leg respectively, on connection support (320), be rotatably connected to transmission pole (311), the chair leg adopts lifting leg (3), described lifting leg (3) comprising: tube cover (323) and sleeve (324), one end of tube cover (323) be connected support (320) connection, the other end of tube cover (323) is located in the sleeve (324) and tube cover (323) is slidingly connected with sleeve (324), the lower end that is provided with support tube (322) and support tube (322) in tube cover (323) is located at the bottom of sleeve (324), be provided with nut (319) in the upper end of support tube (322), be connected with screw rod (321) at nut (319) internal thread, the top of screw rod (321) be connected support (320) and be rotationally connected, be provided with second helical gear (314) on the upper end of screw rod (321) and meshing with first helical gear (312) that is located on the transmission pole (311), described seat support (4) is fixedlyed connected with tube cover (323).
2. free lifting chair according to claim 1 is characterized in that, is connected with polished rod (3212) in the lower end of screw rod (321).
3. free lifting chair according to claim 1 and 2 is characterized in that, is arranged with footmuff (325) in the lower end of sleeve (324).
4. free lifting chair according to claim 3 is characterized in that, is connected with handle (2) on transmission pole (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201424766U CN201641124U (en) | 2010-03-26 | 2010-03-26 | Free lifting chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201424766U CN201641124U (en) | 2010-03-26 | 2010-03-26 | Free lifting chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201641124U true CN201641124U (en) | 2010-11-24 |
Family
ID=43106298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201424766U Expired - Fee Related CN201641124U (en) | 2010-03-26 | 2010-03-26 | Free lifting chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201641124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143782A (en) * | 2011-12-06 | 2013-06-12 | 苏州维赛克阀门检测技术有限公司 | Cutting tool |
-
2010
- 2010-03-26 CN CN2010201424766U patent/CN201641124U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143782A (en) * | 2011-12-06 | 2013-06-12 | 苏州维赛克阀门检测技术有限公司 | Cutting tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203555323U (en) | Double-linkage multifunctional desk | |
| CN201630555U (en) | Free lifting table | |
| CN201772216U (en) | Angle-adjustable television support | |
| CN202234072U (en) | Free ascending and descending chair | |
| CN207569475U (en) | A kind of computer software research and development training device | |
| CN201641124U (en) | Free lifting chair | |
| CN109210342A (en) | A kind of height-adjustable computer display screen | |
| CN205668915U (en) | Electric screw-jacks | |
| CN201806176U (en) | Multifunctional electric rotating dining table | |
| CN204561931U (en) | A kind of height-adjustable washbasin racks | |
| CN110566787A (en) | Mechanical lifting upright post | |
| CN202269688U (en) | Freely lifting chair | |
| CN204071048U (en) | The Intelligent adjustment table that a kind of the elderly is special | |
| CN205541718U (en) | Display device is used in plane advertisement design | |
| CN208207011U (en) | It is a kind of to facilitate the instrument and meter testing stand for adjusting height | |
| CN205838490U (en) | A kind of electric up-down ladder | |
| CN208648638U (en) | A kind of lifting device of freely adjustable carrier height | |
| CN202874348U (en) | Rostrum with height capable of being adjusted | |
| CN100493415C (en) | Automatic baby cradle | |
| CN208834224U (en) | A kind of computer display being applicable in different heights | |
| CN203903901U (en) | Height changing portable elevator | |
| CN212361486U (en) | Product characteristic acquisition device for industrial design | |
| CN202874700U (en) | Pergola capable of being lifted | |
| CN207168231U (en) | A kind of table leg telescoping mechanism | |
| CN201515808U (en) | Lifting table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20170326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |