CN202234072U - Free ascending and descending chair - Google Patents
Free ascending and descending chair Download PDFInfo
- Publication number
- CN202234072U CN202234072U CN2011203188828U CN201120318882U CN202234072U CN 202234072 U CN202234072 U CN 202234072U CN 2011203188828 U CN2011203188828 U CN 2011203188828U CN 201120318882 U CN201120318882 U CN 201120318882U CN 202234072 U CN202234072 U CN 202234072U
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- CN
- China
- Prior art keywords
- chair
- support
- sleeve
- 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 - Lifetime
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Abstract
The utility model discloses a free ascending and descending chair, which comprises a chair back, a chair leg and a chair seat, wherein the chair leg is used for supporting the chair back; a connecting bracket is arranged between the chair back and the chair leg, and is connected with the chair back and the chair legs respectively; a transmission rod is rotationally connected to the connecting bracket; the chair leg is an ascending and descending leg; the ascending and descending leg comprises a casing and a sleeve; one end of the casing is connected with the connecting bracket; the other end of the casing is arranged in the sleeve; the casing is in sliding connection with the sleeve; a support barrel is arranged in the casing; the lower end of the support barrel is arranged at the bottom of the sleeve; the upper end of the support barrel is provided with a nut; a screw rod is in threaded connection with the inside of the nut; the upper part of the screw rod is rotationally connected with the connecting bracket; the upper end of the screw rod is provided with a second bevel gear, and is meshed with a first gear arranged on the transmission rod; and the chair seat is fixedly connected with the casing. The free ascending and descending chair has the advantages of convenience for raising, lowering and adjusting and high safety.
Description
Technical field
The utility model relates to furniture, is specially the 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 through using pin to fasten device; But pretty troublesome when this chair is regulated, 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 through 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 technical problem that the utility model solved is to provide the free lifting chair, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved adopts following technical scheme to realize:
The free lifting chair comprises the chair back, is used to support the chair leg and the seat support of the chair back, between the chair back and chair leg, is provided with to be connected support and to connect support to 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 up-down leg, and the up-down leg comprises a tube cover and a 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, and the lower end that in the tube cover, is provided with support tube and support tube is located at the bottom of sleeve, is provided with nut in the upper end of support tube; 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 fixedly connected with tube cover.
Beneficial effect
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 the security performance of the utility model is improved.It is that the position limiting structure of polished rod can guarantee that again the screw rod of the 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 the long service life of the utility model free from environmental pollution again.Shake just ability 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 up-down leg of the utility model free lifting chair.
Fig. 3 is that the utility model is in vain by the equal proportion enlarged drawing of the support frame 32 in the up-down leg of chair lift.
Fig. 4 is the screw rod 321 structure enlarged drawings of the utility model free lifting chair.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
The 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 up-down leg 3; Up-down leg 3 comprises: tube cover 323 and sleeve 324, an 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; The lower end that in tube cover 323, is provided with support tube 322 and support tube 322 is located at the bottom of sleeve 324; Be provided with nut 319 in the upper end of support tube 322, be connected with on the screw rod 32 at nut 319 internal threads, the top on the screw rod 32 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 fixedly 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.
Shown in Figure 1 is the front view of the utility model.The free lifting chair is made up of the chair back 1, handle 2, up-down leg 3, seat support 4, base 5.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, be rotatably connected to transmission pole 311 connecting on the support 320, chair leg employing up-down leg 3 comprises gear train 31 and support frame 32 in the up-down leg 3.Tube cover 323 in seat support 4 and the up-down leg 3 is fixedly connected.
The equal proportion enlarged drawing of the gear train 31 in the up-down leg 3 of shown in Figure 2 is the utility model free lifting chair.Gear train 31 comprises transmission pole 311, the first helical gears 312, clutch shaft bearing 313, the second helical gears 314, the second bearings 310, the three bearings 316, the 4th bearing 317, casing 318, connects support 320, nut 319.
The equal proportion enlarged drawing of the support frame 32 in the up-down leg of shown in Figure 3 is the utility model free lifting chair.Support frame 32 comprises screw rod 321, support tube 322, and tube cover 323, sleeve 324, footmuff 325, plastic rails 326 when handle 2 rotates, drive the rotation of the transmission pole 311 in the up-down leg 3, and then drives 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 will fix on the chair back, and therefore connecting support 320 can play fixation; Casing 318 is fixed clutch shaft bearing 313, clutch shaft 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 up-down 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 in tube cover 323, is provided with support tube 322 and support tube 322 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.
Owing to be the rotation oscilaltion on the screw rod 32, 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.Base 5 is fixedly connected with sleeve 324, the free lifting chair has been played the effect of fixed support.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model; The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. free lifting chair comprises the chair back, is used to support the chair leg and the seat support of the chair back, it is characterized in that; Between the chair back and chair leg, be provided with to be connected support and to connect support and be connected with the chair back and chair leg respectively, be rotatably connected to transmission pole, chair leg employing up-down leg connecting on the support; Said up-down leg comprises a tube cover and a sleeve, an end of tube cover with is connected support and connects, the other end of tube cover is located in the sleeve and tube covers and sleeve is slidingly connected; The lower end that in the tube cover, is provided with support tube and support tube is located at the bottom of sleeve; Upper end at support tube is provided with nut, is connected with screw rod at nut inner thread, the top of screw rod be connected support and be rotationally connected; On the upper end of screw rod, be provided with second helical gear and with first helical gear engagement that is located on the transmission pole, said seat support covers with tube and is fixedly connected.
2. free lifting chair according to claim 1 is characterized in that, is connected with polished rod in the lower end of screw rod.
3. free lifting chair according to claim 1 is characterized in that, is arranged with footmuff in the lower end of sleeve.
4. free lifting chair according to claim 3 is characterized in that, on transmission pole, is connected with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203188828U CN202234072U (en) | 2011-08-29 | 2011-08-29 | Free ascending and descending chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203188828U CN202234072U (en) | 2011-08-29 | 2011-08-29 | Free ascending and descending chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202234072U true CN202234072U (en) | 2012-05-30 |
Family
ID=46095396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203188828U Expired - Lifetime CN202234072U (en) | 2011-08-29 | 2011-08-29 | Free ascending and descending chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202234072U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106923538A (en) * | 2017-04-25 | 2017-07-07 | 安徽斌欣电子科技有限公司 | A kind of adjustable chair lift |
| CN107048786A (en) * | 2017-04-25 | 2017-08-18 | 安徽斌欣电子科技有限公司 | A kind of adjustable office chair |
-
2011
- 2011-08-29 CN CN2011203188828U patent/CN202234072U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106923538A (en) * | 2017-04-25 | 2017-07-07 | 安徽斌欣电子科技有限公司 | A kind of adjustable chair lift |
| CN107048786A (en) * | 2017-04-25 | 2017-08-18 | 安徽斌欣电子科技有限公司 | A kind of adjustable office chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 313300 Sunshine Avenue 2888, Dipa Street, Anji County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Qianmen Science and Technology Co., Ltd. Address before: 313300 Sunshine Industrial Park, Dipu Town, Anji County, Huzhou City, Zhejiang Province Patentee before: Zhejiang Guo Hua furniture Co., Ltd |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |