CN109330255B - Lifting armrest of chair seat - Google Patents
Lifting armrest of chair seat Download PDFInfo
- Publication number
- CN109330255B CN109330255B CN201811419903.8A CN201811419903A CN109330255B CN 109330255 B CN109330255 B CN 109330255B CN 201811419903 A CN201811419903 A CN 201811419903A CN 109330255 B CN109330255 B CN 109330255B
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- CN
- China
- Prior art keywords
- lifting
- armrest
- handrail
- locking pin
- locking
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Links
- 238000003780 insertion Methods 0.000 claims description 16
- 230000037431 insertion Effects 0.000 claims description 16
- 230000009347 mechanical transmission Effects 0.000 abstract description 3
- 230000005012 migration Effects 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
- A47C7/54—Supports for the arms
Landscapes
- Rehabilitation Tools (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention relates to a lifting handrail of a chair seat. The lifting handrail body can stretch up and down relative to the handrail outer sleeve, the lifting handrail body is provided with the locking component, the lifting sliding block of the locking component is matched with the inclined plane of the locking pin, and when the lifting sliding block slides up and down, the locking pin is driven to be separated from the locking hole or is driven to be inserted into the locking hole, so that the lifting handrail body is unlocked or locked. After the locking pin unlocks the lifting handrail body, a user can lift or press the lifting handrail body upwards until the lifting handrail body is adjusted to be suitable for the height of the handrail, and then the locking pin locks the lifting handrail body again, so that the height of the lifting handrail body is adjusted finally, and the adjustment is very convenient. According to the invention, the lifting handrail body is unlocked by adopting the pull rope, and the phenomenon of mechanical transmission jamming of the pull rope is not easy to occur, so that the adjustable stroke (height) of the lifting handrail body can be set larger, and the requirements of users with different heights can be met.
Description
Technical Field
The invention relates to the technical field of armrests of chairs, in particular to a lifting armrest of a chair.
Background
The lifting adjusting mechanism of the lifting handrail of the existing chair is complex in structure, the lifting adjusting mechanism is inserted into the handrail and the outer pipe of the handrail through the connecting rod to drive the locking assembly so as to unlock the lifting handrail, and the phenomena of transmission failure and blocking easily occur when the connecting rod is overlong, so that in order to prevent the connecting rod from overlong and easily unlocking failure, the length of the connecting rod and the handrail can be generally limited by a chair manufacturer, the adjustable stroke of the lifting handrail is small, the adjustable height is small, and the handrail can not meet the requirements of users with different heights.
Disclosure of Invention
The invention aims to provide the lifting handrail of the chair seat, which has the advantages of simple and reasonable structure, convenient adjustment and large adjustable stroke.
The purpose of the invention is realized in the following way:
the utility model provides a lift handrail of seat support, includes handrail overcoat and lift handrail body, the lift handrail body is flexible to be set up on the handrail overcoat along the length direction of lift handrail body, characterized by, be equipped with locking Assembly on the lift handrail body, locking Assembly includes fixing base, lifting slide block, locking pin and reset spring, the fixing base is located in the lift handrail body, lifting slide block slides along the length direction of lift handrail body and sets up on the fixing base, reset spring locates between lifting slide block and the fixing base, locking pin horizontal slip sets up on the fixing base, the lift handrail body corresponds the locking pin position and is equipped with the through-hole, the lateral wall of handrail overcoat is provided with a plurality of locking holes along the length direction of lift handrail body, lifting slide block cooperates with the locking pin inclined plane to drive locking pin horizontal slip, the locking pin passes through-hole, locking hole from inside to outside in proper order, in order to lock the lift handrail body.
The aim of the invention can be also solved by adopting the following technical measures:
the upper portion rotation of lift handrail body is equipped with the unblock handle, the unblock handle passes through the stay cord and is connected with the lift slider, and the unblock handle exposes the upper portion of lift handrail body outward, and the user can dial the unblock handle upwards, and the unblock handle passes through the stay cord and drives the lift slider and upwards moves, and the drive sloping block of lift slider drives the locking pin and slides in to the lift handrail body, breaks away from the locking hole to realize the unblock lift handrail body, the lift handrail body can be relative handrail overcoat oscilaltion.
The lifting handrail body comprises a handrail part and a handrail insertion pipe, the handrail insertion pipe and a handrail outer sleeve are arc-shaped, the handrail part is arranged at the upper end of the handrail insertion pipe, the handrail insertion pipe is inserted into the handrail outer sleeve, the locking assembly and the pull rope are arranged in the handrail insertion pipe, the unlocking handle is rotatably arranged on the handrail part, and one end of the unlocking handle is exposed out of the handrail part.
The shape and the size of the armrest cannula are mutually matched with those of the armrest jacket.
The fixing base is equipped with the lift slide rail along the length direction of lift handrail body, the fixing base is equipped with horizontal slide rail along the horizontal direction, and the lift slide rail is located the top of horizontal slide rail, and the lower extreme and the upside intercommunication of horizontal slide rail of lift slide rail, the one end and the through-hole intercommunication of horizontal slide rail, the slip of lift slider set up on the lift slide rail, the locking pin slides and sets up on horizontal slide rail.
The lower extreme of lift slider is equipped with the drive sloping block, be equipped with the chute on the locking pin, the drive sloping block passes the chute downwards and cooperates with the chute inclined plane, and when lift slider was slided down, the inwards horizontal migration of drive sloping block drive locking pin, and the locking pin breaks away from the locking hole, and lift handrail body realizes the unblock, and when lift slider upwards slided, the outwards horizontal migration of drive sloping block drive locking pin, locking pin insert the locking hole, and lift handrail body realizes the locking.
The lower side of the horizontal sliding rail is provided with a yielding hole, the driving inclined block downwards passes through the yielding hole, and the driving inclined block can downwards move so as to drive the locking pin to horizontally move.
The driving inclined block is 7-shaped.
The lifting slide rail is communicated with the horizontal slide rail in an inverted T shape.
The lower part of horizontal slide rail is equipped with the spacing groove, the lower extreme of drive sloping block is equipped with spacing piece of supporting, and spacing piece of supporting supports and leans on in the spacing groove to the restriction drive sloping block continues to slide downwards.
The lifting sliding block is provided with a spring fixing groove along the length direction of the lifting handrail body, the reset spring is arranged in the spring fixing groove, the top end of the reset spring is propped against the fixing seat, and the bottom end of the reset spring is propped against the lower end of the spring fixing groove.
The lifting slide rail is provided with an upper positioning bulge, the upper positioning bulge stretches into the spring fixing groove, the top end of the reset spring is sleeved on the upper positioning bulge, the lower end of the spring fixing groove is provided with a lower positioning bulge, and the bottom end of the reset spring is sleeved on the lower positioning bulge.
The beneficial effects of the invention are as follows:
the lifting handrail body can extend up and down relative to the handrail outer sleeve, the lifting handrail body is provided with the locking component, the lifting sliding block of the locking component is matched with the inclined plane of the locking pin, and when the lifting sliding block slides up and down, the locking pin is driven to slide inwards and horizontally to be separated from the locking hole or is driven to slide outwards and horizontally to be inserted into the locking hole, so that the lifting handrail body is unlocked or locked. After the locking pin unlocks the lifting handrail body, a user can lift or press the lifting handrail body upwards until the lifting handrail body is adjusted to be suitable for the height of the handrail, and then the locking pin locks the lifting handrail body again, so that the height of the lifting handrail body is adjusted finally, and the adjustment is very convenient. According to the invention, the lifting handrail body is unlocked by adopting the pull rope, and the phenomenon of mechanical transmission jamming of the pull rope is not easy to occur, so that the adjustable stroke (height) of the lifting handrail body can be set larger, and the requirements of users with different heights can be met.
And (II) the upper portion of lift handrail body is equipped with the unblock handle, and the user is through upwards stirring the unblock handle, and the unblock handle passes through the stay cord and drives lift slider and upwards moves, just can unblock lift handrail body, and the unblock is very convenient. Compared with the connecting rod, the lifting handrail body is unlocked through the pull rope, so that the lifting handrail is more stable in transmission and is not easy to cause the phenomenon of mechanical transmission jamming.
Drawings
Fig. 1 is a schematic view of a lifting handrail of a seat according to the present invention.
Fig. 2 is a schematic cross-sectional view of a lifting arm of the seat of the present invention.
Fig. 3 is a schematic view of the locking assembly of the seat of the present invention in a locked state.
Fig. 4 is a schematic view of the structure of the locking assembly of the present invention in an unlocked state.
Fig. 5 is a schematic view of an exploded construction of the locking assembly of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1 to 5, a lifting armrest of a chair seat comprises an armrest outer sleeve 12 and a lifting armrest body 11, wherein the lifting armrest body 11 is telescopically arranged on the armrest outer sleeve 12 along the length direction of the lifting armrest body, a locking assembly 2 is arranged on the lifting armrest body 11, the locking assembly 2 comprises a fixed seat 21, a lifting sliding block 23, a locking pin 24 and a return spring 25, the fixed seat 21 is positioned in the lifting armrest body 11, the lifting sliding block 23 is arranged on the fixed seat 21 in a sliding manner along the length direction of the lifting armrest body, the locking pin 24 is horizontally arranged on the fixed seat 21 in a sliding manner, the return spring 25 is arranged between the fixed seat 21 and the lifting sliding block 23, a through hole 14 is arranged at the position of the lifting armrest body 11 corresponding to the locking pin 24, the side wall of the armrest outer sleeve 12 is provided with a plurality of locking holes 13 along the length direction of the lifting armrest body, the lifting sliding block 23 is matched with the locking pin 24 in an inclined plane so as to drive the locking pin 24 to horizontally slide, and the locking pin 24 sequentially passes through the through hole 14 and the locking hole 13 from inside to outside so as to lock the lifting armrest body 11.
As a more specific technical scheme of the invention.
The lifting handrail body 11 comprises a handrail portion 112 and a handrail insertion tube 111, the handrail insertion tube and a handrail outer sleeve are arc-shaped, the handrail portion 112 is arranged at the upper end of the handrail insertion tube, the handrail insertion tube 111 is inserted into the handrail outer sleeve 12, the locking assembly and the pull rope are arranged in the handrail insertion tube, the unlocking handle is rotatably arranged on the handrail portion, and one end of the unlocking handle is exposed out of the handrail portion.
The shape and size of the handrail insertion tube 111 are adapted to the shape and size of the handrail outer jacket 12.
The upper portion rotation of lift handrail body 11 is equipped with unblock handle 22, unblock handle 22 passes through stay cord 26 and lift slider 23 to be connected, and the user can dial up unblock handle 22, and unblock handle 22 passes through stay cord 26 and drives lift slider 23 and reciprocate, and the drive sloping block 231 of lift slider 23 drives locking pin 24 and breaks away from locking hole 13 to realize unblock lift handrail body 11, lift handrail body 11 can reciprocate relative handrail overcoat 12.
The fixing base 21 is equipped with the lift slide rail 211 along the length direction of lift handrail body, the fixing base 21 is equipped with horizontal slide rail 212 along the horizontal direction, and lift slide rail 211 is located the top of horizontal slide rail 212, and the lower extreme of lift slide rail 211 communicates with the upside of horizontal slide rail 212, the one end and the through-hole 14 intercommunication of horizontal slide rail 212, and the slip of lift slider 23 sets up on lift slide rail 211, locking pin 24 slip sets up on horizontal slide rail 212.
The lower extreme of lift slider 23 is equipped with the drive sloping block 231, be equipped with chute 241 on the locking pin 24, the drive sloping block 231 passes chute 241 downwards and cooperates with chute 241 inclined plane, when lift slider 23 slides downwards, the drive sloping block 231 drives locking pin 24 inwards horizontal migration, locking pin 24 breaks away from locking hole 13, lift handrail body 11 realizes the unblock, when lift slider 23 slides upwards, the drive sloping block 231 drives locking pin 24 outwards horizontal migration, locking pin 24 inserts locking hole 13, lift handrail body 11 realizes the locking.
The lower side of the horizontal sliding rail 212 is provided with a yielding hole 215, the driving inclined block 231 passes through the yielding hole 215 downwards, the driving inclined block 231 can move downwards, and the driving locking pin 24 moves horizontally.
The driving ramp 231 is 7-shaped.
The lifting sliding rail 211 is communicated with the horizontal sliding rail 212 in an inverted T shape.
The lower part of the horizontal sliding rail 212 is provided with a limit groove 216, the lower end of the driving inclined block 231 is provided with a limit abutting block 217, and the limit abutting block 217 abuts downwards in the limit groove 216 so as to limit the driving inclined block 231 to slide downwards continuously.
The lifting sliding block 23 is provided with a spring fixing groove 232 along the length direction of the lifting handrail body, the reset spring 25 is arranged in the spring fixing groove 232, the top end of the reset spring 25 is abutted against the fixing seat 21, and the bottom end of the reset spring 25 is abutted against the lower end of the spring fixing groove 232.
The lifting sliding rail 211 is provided with an upper positioning protrusion 213, the upper positioning protrusion 213 extends into the spring fixing groove 232, the top end of the return spring 25 is sleeved on the upper positioning protrusion 213, the lower end of the spring fixing groove 232 is provided with a lower positioning protrusion 233, and the bottom end of the return spring 25 is sleeved on the lower positioning protrusion 233.
The working principle of the invention is as follows:
when the user wants to adjust the armrest height of the seat, the user can dial the unlocking handle 22 upwards, the unlocking handle 22 drives the lifting slide block 23 to move upwards through the pull rope 26, the driving inclined block 231 of the lifting slide block 23 drives the locking pin 24 to slide inwards and horizontally, the locking pin 24 is separated from the locking hole 13, the lifting armrest body 11 can move up and down in a telescopic manner relative to the armrest outer sleeve 12, so that the lifting armrest body 11 is unlocked, meanwhile, the user can lift or press the lifting armrest body 11 upwards until the lifting armrest body is adjusted to be suitable for the armrest height of the user, then the user releases the unlocking handle 22 again, the reset spring 25 enables the lifting slide block 23 to slide downwards for reset, the driving inclined block 231 drives the locking pin 24 to extend outwards and be inserted into the locking hole 13, and accordingly the lifting armrest body 11 is locked.
Claims (9)
1. The utility model provides a lifting armrest of seat support, includes handrail overcoat and lifting armrest body, lifting armrest body is flexible to be set up on the handrail overcoat along the length direction of lifting armrest body, characterized by, be equipped with locking component on the lifting armrest body, locking component includes fixing base, lifting slider, locking pin and reset spring, the fixing base is located in the lifting armrest body, lifting slider slides along the length direction of lifting armrest body and sets up on the fixing base, reset spring locates between lifting slider and the fixing base, locking pin horizontal slip sets up on the fixing base, lifting armrest body corresponds the locking pin position and is equipped with the through-hole, the lateral wall of handrail overcoat is provided with a plurality of locking holes along the length direction of lifting armrest body, lifting slider cooperates with the locking pin inclined plane to drive locking pin horizontal slip, the locking pin passes through-hole, locking hole in proper order from inside to outside, in order to lock lifting armrest body, lifting armrest body's upper portion rotation is equipped with the unblock handle, the unblock handle passes through being connected with lifting slider.
2. The lifting armrest of claim 1, wherein the lifting armrest body comprises an armrest portion and an armrest insertion tube, the armrest insertion tube and the armrest outer sleeve are arc-shaped, the armrest portion is disposed at the upper end of the armrest insertion tube, the armrest insertion tube is inserted into the armrest outer sleeve, the locking assembly and the pull rope are disposed in the armrest insertion tube, and the unlocking handle is rotatably disposed on the armrest portion.
3. The lifting handrail of the chair seat according to claim 1, wherein the fixing seat is provided with a lifting sliding rail along the length direction of the lifting handrail body, the fixing seat is provided with a horizontal sliding rail along the horizontal direction, the lifting sliding rail is located above the horizontal sliding rail, the lower end of the lifting sliding rail is communicated with the upper side of the horizontal sliding rail, one end of the horizontal sliding rail is communicated with the through hole, the lifting sliding block is arranged on the lifting sliding rail in a sliding manner, and the locking pin is arranged on the horizontal sliding rail in a sliding manner.
4. A lifting handrail of a chair according to claim 3, wherein the lower end of the lifting slider is provided with a driving bevel block, the locking pin is provided with a bevel groove, and the driving bevel block passes through the bevel groove downwards and is matched with the bevel groove bevel.
5. The lifting armrest of claim 4, wherein the underside of the horizontal rail is provided with a relief hole, and the drive ramp extends downwardly through the relief hole.
6. The lifting armrest of claim 5, wherein the lifting rail is in t-shaped communication with the horizontal rail.
7. The lifting handrail of claim 6, wherein a limit groove is arranged below the horizontal sliding rail, and a limit abutting block is arranged at the lower end of the driving oblique block and abuts against the limit groove.
8. The lifting armrest of the seat according to claim 1, wherein the lifting slider is provided with a spring fixing groove along the length direction of the lifting armrest body, the return spring is arranged in the spring fixing groove, the top end of the return spring abuts against the fixing seat, and the bottom end of the return spring abuts against the lower end of the spring fixing groove.
9. The lifting handrail of the chair seat according to claim 8, wherein the lifting sliding rail is provided with an upper positioning protrusion, the upper positioning protrusion extends into the spring fixing groove, the top end of the return spring is sleeved on the upper positioning protrusion, the lower end of the spring fixing groove is provided with a lower positioning protrusion, and the bottom end of the return spring is sleeved on the lower positioning protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419903.8A CN109330255B (en) | 2018-11-26 | 2018-11-26 | Lifting armrest of chair seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811419903.8A CN109330255B (en) | 2018-11-26 | 2018-11-26 | Lifting armrest of chair seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109330255A CN109330255A (en) | 2019-02-15 |
| CN109330255B true CN109330255B (en) | 2024-04-12 |
Family
ID=65318224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811419903.8A Active CN109330255B (en) | 2018-11-26 | 2018-11-26 | Lifting armrest of chair seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109330255B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109805656B (en) * | 2019-03-23 | 2023-10-20 | 肖增荣 | Three-dimensional adjustable armrest and swivel chair |
| CN112776686B (en) * | 2019-11-11 | 2023-03-21 | 明门(中国)幼童用品有限公司 | Carrier and height-adjustable handle of child safety seat thereof |
| CN110876539A (en) * | 2019-12-26 | 2020-03-13 | 范会鑫 | Lifting armrest of chair |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005096485A (en) * | 2003-09-22 | 2005-04-14 | Tachi S Co Ltd | Arm rest used for automobile seat |
| CN101449888A (en) * | 2007-12-04 | 2009-06-10 | 蔡博全 | Lifting structure of chair armrest |
| KR101547275B1 (en) * | 2014-05-02 | 2015-08-26 | 주식회사 다원체어스 | Armrest for Chair |
| CN105286344A (en) * | 2014-06-18 | 2016-02-03 | 及桦实业股份有限公司 | Lifting handrail |
| CN106073274A (en) * | 2016-08-24 | 2016-11-09 | 开平瑞信家具配件有限公司 | A kind of Liftable armrest assembly of being unlocked by pressing |
| CN209733165U (en) * | 2018-11-26 | 2019-12-06 | 陈敏 | Lifting armrest of chair seat |
-
2018
- 2018-11-26 CN CN201811419903.8A patent/CN109330255B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005096485A (en) * | 2003-09-22 | 2005-04-14 | Tachi S Co Ltd | Arm rest used for automobile seat |
| CN101449888A (en) * | 2007-12-04 | 2009-06-10 | 蔡博全 | Lifting structure of chair armrest |
| KR101547275B1 (en) * | 2014-05-02 | 2015-08-26 | 주식회사 다원체어스 | Armrest for Chair |
| CN105286344A (en) * | 2014-06-18 | 2016-02-03 | 及桦实业股份有限公司 | Lifting handrail |
| CN106073274A (en) * | 2016-08-24 | 2016-11-09 | 开平瑞信家具配件有限公司 | A kind of Liftable armrest assembly of being unlocked by pressing |
| CN209733165U (en) * | 2018-11-26 | 2019-12-06 | 陈敏 | Lifting armrest of chair seat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109330255A (en) | 2019-02-15 |
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