CN113662383A - Self-adaptive lifting handrail - Google Patents
Self-adaptive lifting handrail Download PDFInfo
- Publication number
- CN113662383A CN113662383A CN202110972183.3A CN202110972183A CN113662383A CN 113662383 A CN113662383 A CN 113662383A CN 202110972183 A CN202110972183 A CN 202110972183A CN 113662383 A CN113662383 A CN 113662383A
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- China
- Prior art keywords
- handrail
- tube
- hole
- pipe
- limiting
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- Pending
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- 230000003044 adaptive effect Effects 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- A47C7/541—Supports for the arms of adjustable type
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- Steps, Ramps, And Handrails (AREA)
Abstract
The invention provides a self-adaptive lifting handrail which comprises a handrail main body and a handrail tube assembly, wherein the handrail main body is arranged at the top of the handrail tube assembly; the handrail pipe assembly comprises a handrail outer pipe and a handrail inner pipe, and the handrail outer pipe is sleeved on the handrail inner pipe and can move up and down along the handrail inner pipe; an elastic reset element is arranged between the outer handrail tube and the inner handrail tube, and the elastic reset element enables the outer handrail tube to always have the upward springing trend; the handrail main body is arranged at the upper end of the handrail outer tube. The handrail realizes lifting by nesting and movably matching the handrail outer tube and the handrail inner tube, and balances the acting force of the elastic reset element with the weight applied by a user, thereby realizing stepless self-adaptive lifting adjustment and ensuring that the hand of the user enjoys a comfortable bearing state.
Description
Technical Field
The invention belongs to the field of office chair accessories, and particularly relates to a self-adaptive lifting handrail.
Background
The seat armrests are arranged on two sides of the seat and used for being leaned by hands of people, and the arrangement of the seat armrests increases the comfort level of the seat. However, most of the existing seat armrests are fixed at unadjustable height and cannot meet the use requirements of consumers with different body types. The height of the small part of adjustable seat armrests is adjusted step by arranging a plurality of hole sites, and the height position of each step can not be matched with a user.
Disclosure of Invention
The invention aims to provide a self-adaptive lifting handrail, which comprises a handrail main body and a handrail pipe assembly, wherein the handrail main body is arranged at the upper end of the handrail pipe assembly; the handrail pipe assembly comprises a handrail outer pipe and a handrail inner pipe, and the handrail outer pipe is sleeved on the handrail inner pipe and can move up and down along the handrail inner pipe; an elastic reset element is arranged between the outer handrail tube and the inner handrail tube, and the elastic reset element enables the outer handrail tube to always have the upward springing trend; the handrail main body is arranged at the upper end of the handrail outer tube.
The handrail realizes lifting by nesting and movably matching the handrail outer tube and the handrail inner tube, and balances the acting force of the elastic reset element with the weight applied by a user, thereby realizing stepless self-adaptive lifting adjustment and ensuring that the hand of the user enjoys a comfortable bearing state.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a first exploded view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is a second exploded view of the present invention.
Fig. 5 is a third exploded view of the present invention.
Fig. 6 is an exploded view of the armrest body according to the present invention.
Detailed Description
The scheme of the present application is further described below with reference to the accompanying drawings, 1 to 6:
an adaptive lifting handrail comprises a handrail main body 1 and a handrail tube assembly 2, wherein the handrail main body 1 is installed at the top of the handrail tube assembly 2; the handrail pipe assembly 2 comprises a handrail outer pipe 21 and a handrail inner pipe 22, wherein the handrail outer pipe 21 is sleeved on the upper part of the handrail inner pipe 22 and can move up and down along the handrail inner pipe 22; an elastic reset element 23 is arranged between the handrail outer tube 21 and the handrail inner tube 22, and the elastic reset element 23 enables the handrail outer tube 21 to always have a tendency of popping upwards; the handrail main body 1 is installed at the upper end of the handrail outer tube 21.
The handrail of the technical scheme realizes lifting by nesting and movably matching the handrail outer tube 21 and the handrail inner tube 22, and balances the acting force of the elastic reset element 23 and the weight applied by a user, thereby realizing stepless self-adaptive lifting adjustment and enabling the hand of the user to enjoy a comfortable bearing state.
Specifically, the method comprises the following steps: an outer tube end cover 211 is fixedly arranged at the upper end of the handrail outer tube 21; an inner pipe end cover 221 is fixedly arranged at the upper end of the handrail inner pipe 22; the elastic reset element 23 is a spring, one end of the spring abuts against the outer tube end cover 211, and the other end of the spring abuts against the inner tube end cover 221.
An outer tube limiting hole 212 is formed in the handrail outer tube 21, and the outer tube limiting hole 212 extends along the axial direction of the handrail outer tube; the armrest inner tube 22 is provided with a limiting member 24, and the limiting member 24 is inserted into the outer tube limiting hole 212 and has a movable gap with the hole wall of the outer tube limiting hole 212, so that the outer tube limiting hole 212 can move relative to the limiting member 24 when the armrest outer tube 21 moves up and down.
The outer tube retention hole 212 has an upper extended end 2121 and a lower extended end 2122; when the upper extending end 2121 of the outer tube limiting hole 212 abuts against the limiting member 24, the armrest outer tube 21 is at the downward moving limit; when the lower extending end of the outer tube limiting hole 212 abuts against the limiting member 24, the armrest outer tube 21 is at the upper limit.
The outer tube limiting hole 212 is matched with the limiting member 24, so that the vertical moving range of the handrail outer tube 21 is limited, and the circumferential rotation of the handrail outer tube 21 is limited.
The limiting member 24 is a screw or a column fixed on the inner tube 22 of the handrail.
In the embodiment, the limiting member 24 is a screw, which is simpler to install than a column; the handrail inner pipe 22 is provided with a screw hole 222 for mounting the screw; the nut of the screw is partially exposed out of the outer tube 21 and has an outer diameter larger than the width of the outer tube limiting hole 212.
A plastic inner sleeve 25 is nested in the handrail outer tube 21; the plastic inner sleeve 25 is provided with an inner sleeve limiting hole 251 corresponding to the outer tube stroke hole 212 in shape. The plastic inner sleeve 25 is in a hollow tubular shape, and the lower end of the plastic inner sleeve 25 is provided with a convex edge 252 extending outwards in the radial direction, when the plastic inner sleeve 25 is installed, the plastic inner sleeve 25 is inserted into the handrail outer tube 21 from the pipe orifice at the lower end of the handrail outer tube 21, the outer wall of the plastic inner sleeve 25 is tightly attached to the inner wall of the handrail outer tube 21, the convex edge 252 is tightly attached to the lower end face of the handrail outer tube 21, and the inner sleeve limiting hole 251 is aligned with the outer tube limiting hole 212.
The plastic inner sleeve 25 can avoid collision and friction between metal pipe fittings, and solves the problem that the friction between the outer handrail pipe 21 and the inner handrail pipe can generate noise when moving.
As shown in fig. 2, when the handrail tube assembly 2 is installed, the plastic inner sleeve 25 is first inserted into the handrail outer tube 21, the spring is then placed into the handrail outer tube 21, the handrail inner tube 22 is then inserted into the handrail outer tube 21 from the tube opening at the lower end of the handrail outer tube 21, the screw hole 222 on the handrail inner tube 22 is exposed from the outer tube stroke hole 212, and finally, the screw (stopper) is installed on the handrail inner tube 22.
The top of the handrail outer tube 21 is provided with a connecting piece 3, and the connecting piece 3 is provided with a first connecting hole 31; a groove 10 corresponding to the connecting sheet 3 in shape is formed in the bottom of the handrail main body 1, and a second connecting hole 101 is formed in the bottom of the groove 10; the connecting piece 3 is embedded in the groove 10 and fixed by connecting the first connecting hole 31 and the second connecting hole 101 through the first screw 4.
The handrails of most seats are integrally formed plastic parts, cannot be disassembled, cause packaging difficulty, are high in packaging cost and are easy to damage in the transportation process.
The handrail tube component of the technical scheme is fixed with the handrail main body 1 through the connecting sheet 3 by screws, is detachably connected, can be disassembled for packaging and selling, saves space, reduces packaging materials, is environment-friendly and saves cost; in addition, the installation and operation are simple, the consumer can assemble the device independently, and the device is convenient to repair and replace after sale.
The armrest body 1 comprises a surface cover 11 and a bottom shell 12; the upper end of the bottom shell 12 is provided with an opening 120, the edge of the bottom surface of the surface cover 11 is provided with an annular limiting convex rib 113, the surface cover 11 covers the opening 120 of the bottom shell 12, and the limiting convex rib 113 is tightly matched with the opening 120 of the bottom shell 12; the surface cover 11 is fixedly connected with the bottom shell 12 through a second screw 5.
In the market, except for integrally formed plastic handrails, a part of detachable handrails are formed by combining a plurality of plastic parts, namely a surface cover, a middle cover and a bottom cover; and the handrail main part of this technical scheme only needs face lid and drain pan to be connected fixedly, has both reduced the cost, has also reduced the assembly degree of difficulty.
The edge of the top surface of the surface cover 11 is an arc chamfer edge; smooth transition and difficult scraping.
The bottom surface of the bottom shell 12 is an arc surface, and the connecting piece 3 is arc-shaped. Connecting piece 3 all adopts the circular arc cooperation with drain pan 12 in the outward appearance, does not have outstanding drain pan 12 surface after the assembly, and the outward appearance is not influenced.
A connecting column 111 extending into the bottom shell 12 is arranged at the bottom side of the face cover 11, a third connecting hole 112 is formed in the connecting column 111, and the third connecting hole 112 is a blind hole; a fourth connecting hole 121 is formed at the bottom of the bottom shell 12; the fourth connecting hole 121 is an inward-turned hole, the fourth connecting hole 121 is turned over at the inner side of the bottom case 12 to form a ring platform 122, and the connecting column 111 abuts against the ring platform 122; the second screw 5 is inserted into the fourth connecting hole 121 and the third connecting hole 112.
As shown in fig. 6, during installation, the second screw 5 penetrates into the bottom case 12 from the bottom of the bottom case 12 through the fourth connection hole 121 to connect with the third connection hole 112 on the connection post 111. The connecting column 111 abuts against the annular table 122 on the inner side of the inward-flanging hole, so that the third connecting hole 112 is in butt joint with the fourth connecting hole 121, dislocation is avoided, and the difficulty of autonomous installation is reduced.
The second screw is preferably a long screw. Because the third connecting hole is a blind hole, the screw cannot be exposed at the top of the face cover, and the appearance is not influenced. Compared with an assembly mode of directly screwing the top of the face cover, the face cover of the technical scheme is not provided with a through hole and is not easy to crack.
The surface cover 11 is a plastic part and is easy to mold and process. The bottom shell 12 is made of metal pieces, so that the handrail is stable, difficult to deform, environment-friendly and durable, and the service life of the handrail is prolonged.
The connecting piece 3 is a metal piece, and the connecting piece 3 is welded on the top of the handrail outer tube 21.
Specifically, the top of the handrail outer tube 21 is arranged on the connecting piece 3 through a through hole on the connecting piece 3 and fixed by welding.
As shown in fig. 5, a tube hole 102 for the top of the handrail outer tube 21 to penetrate through is formed in the bottom of the groove 10, when the handrail outer tube 21 is installed, the upper end of the handrail outer tube 21 extends into the bottom shell 12 through the tube hole 102, the connecting piece 3 is embedded into the groove 10 to be engaged with the bottom surface of the bottom shell 12, and then the first screw 4 is screwed into the groove to connect the first connecting hole 31 and the second connecting hole 101 for fixing.
The armrest inner tube 22 is L-shaped, the fixing part 6 is arranged at the end of the bottom of the armrest inner tube 22, the self-adaptive lifting armrest is connected with the seat body through the fixing part 6, and specifically, the fixing part 6 is connected with the seat body through a screw.
The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.
Claims (10)
1. An adaptive lifting handrail comprises a handrail body and a handrail tube assembly, wherein the handrail body is arranged on the top of the handrail tube assembly; the method is characterized in that:
the handrail pipe assembly comprises a handrail outer pipe and a handrail inner pipe, and the handrail outer pipe is sleeved on the handrail inner pipe and can move up and down along the handrail inner pipe;
an elastic reset element is arranged between the outer handrail tube and the inner handrail tube, and the elastic reset element enables the outer handrail tube to always have the upward springing trend;
the handrail main body is arranged at the upper end of the handrail outer tube.
2. The adaptive lifting handrail of claim 1, wherein:
the upper end of the outer handrail tube is provided with an outer tube end cover;
the upper end of the handrail inner pipe is provided with an inner pipe end cover;
the elastic reset element is a spring, one end of the spring is abutted against the outer tube end cover, and the other end of the spring is abutted against the inner tube end cover.
3. An adaptive lifting handrail as claimed in claim 1 or 2, wherein:
an outer tube limiting hole is formed in the outer handrail tube and extends along the axial direction of the outer handrail tube;
the handrail inner tube is provided with a limiting piece, the limiting piece is arranged in the outer tube limiting hole in a penetrating mode, and a movable gap is formed between the limiting piece and the hole wall of the outer tube limiting hole;
the outer tube limiting hole is provided with an upper extending tail end and a lower extending tail end;
when the upper extending tail end of the outer pipe limiting hole abuts against the limiting piece, the outer handrail pipe is in a downward moving limit;
when the lower extension tail end of the outer pipe limiting hole abuts against the limiting part, the outer handrail pipe is in an upward moving limit.
4. The adaptive lifting handrail of claim 3, wherein:
the limiting part is a screw or an upright post fixed on the inner pipe of the handrail.
5. The adaptive lifting handrail of claim 3, wherein:
a plastic inner sleeve is nested in the handrail outer tube; and the plastic inner sleeve is provided with an inner sleeve limiting hole corresponding to the shape of the outer pipe stroke hole.
6. The adaptive lifting handrail of claim 1, wherein:
the top of the handrail outer pipe is provided with a connecting sheet, and the connecting sheet is provided with a first connecting hole;
a groove corresponding to the connecting sheet in shape is formed in the bottom of the handrail main body, and a second connecting hole is formed in the bottom of the groove;
the connecting piece is embedded in the groove and is connected with the first connecting hole and the second connecting hole through a first screw to be fixed.
7. The adaptive lifting handrail of claim 6, wherein:
the armrest body comprises a surface cover and a bottom shell;
the upper end of the bottom shell is provided with an opening, the edge of the bottom surface of the surface cover is provided with an annular limiting convex rib, the surface cover covers the opening of the bottom shell, and the limiting convex rib is tightly matched with the opening of the bottom shell;
the face cover is fixedly connected with the bottom shell through a second screw.
8. The adaptive lifting handrail of claim 7, wherein:
a connecting column extending into the bottom shell is arranged on the bottom side of the face cover, a third connecting hole is formed in the connecting column, and the third connecting hole is a blind hole;
a fourth connecting hole is formed in the bottom of the bottom shell; the fourth connecting hole is an inward-turned hole, the fourth connecting hole is turned over on the inner side of the bottom shell to form a ring platform, and the connecting column is abutted against the ring platform;
and the second screw penetrates through the fourth connecting hole and the third connecting hole.
9. The adaptive lifting handrail of claim 7, wherein:
the surface cover is a plastic part; the bottom shell is a metal piece;
the connecting piece is a metal piece and is welded at the top of the outer handrail tube.
10. The adaptive lifting handrail of claim 7, wherein:
the edge of the top surface of the surface cover is an arc chamfer edge;
the bottom surface of drain pan is the cambered surface, the connection piece is the arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110972183.3A CN113662383A (en) | 2021-08-24 | 2021-08-24 | Self-adaptive lifting handrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110972183.3A CN113662383A (en) | 2021-08-24 | 2021-08-24 | Self-adaptive lifting handrail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113662383A true CN113662383A (en) | 2021-11-19 |
Family
ID=78545522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110972183.3A Pending CN113662383A (en) | 2021-08-24 | 2021-08-24 | Self-adaptive lifting handrail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113662383A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW457894U (en) * | 2000-11-01 | 2001-10-01 | Su Wen Fa | Structure of armrest seat |
| CN2464975Y (en) * | 2001-01-11 | 2001-12-12 | 徐光平 | Bearing type screw lifting/lowering middle pipe |
| US20040183355A1 (en) * | 2001-06-20 | 2004-09-23 | Soon-Won Lee | Armrest apparatus installed in chair for computer work |
| JP2010051614A (en) * | 2008-08-29 | 2010-03-11 | Itoki Corp | Armrest apparatus |
| CN203762675U (en) * | 2014-02-25 | 2014-08-13 | 张成龙 | Handrail with adjustable force ratio |
| CN203914120U (en) * | 2014-03-11 | 2014-11-05 | 陈浪 | A kind of armrest |
| CN206044073U (en) * | 2016-07-25 | 2017-03-29 | 江西兴海床具有限公司 | Adaptive equalization bed |
| CN209629155U (en) * | 2018-04-03 | 2019-11-15 | 刘勇 | A kind of two-tube lifting handrail |
| CN212308786U (en) * | 2019-12-09 | 2021-01-08 | 北京智融康成科技有限公司 | Upper limb rehabilitation assistance training instrument |
| CN212439276U (en) * | 2020-04-23 | 2021-02-02 | 广州市枫丹医疗器械有限公司 | Rotatable handrail and dental treatment chair |
| CN213154950U (en) * | 2020-08-10 | 2021-05-11 | 佛山市科智美家具有限公司 | Armchair lifting mechanism |
-
2021
- 2021-08-24 CN CN202110972183.3A patent/CN113662383A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW457894U (en) * | 2000-11-01 | 2001-10-01 | Su Wen Fa | Structure of armrest seat |
| CN2464975Y (en) * | 2001-01-11 | 2001-12-12 | 徐光平 | Bearing type screw lifting/lowering middle pipe |
| US20040183355A1 (en) * | 2001-06-20 | 2004-09-23 | Soon-Won Lee | Armrest apparatus installed in chair for computer work |
| JP2010051614A (en) * | 2008-08-29 | 2010-03-11 | Itoki Corp | Armrest apparatus |
| CN203762675U (en) * | 2014-02-25 | 2014-08-13 | 张成龙 | Handrail with adjustable force ratio |
| CN203914120U (en) * | 2014-03-11 | 2014-11-05 | 陈浪 | A kind of armrest |
| CN206044073U (en) * | 2016-07-25 | 2017-03-29 | 江西兴海床具有限公司 | Adaptive equalization bed |
| CN209629155U (en) * | 2018-04-03 | 2019-11-15 | 刘勇 | A kind of two-tube lifting handrail |
| CN212308786U (en) * | 2019-12-09 | 2021-01-08 | 北京智融康成科技有限公司 | Upper limb rehabilitation assistance training instrument |
| CN212439276U (en) * | 2020-04-23 | 2021-02-02 | 广州市枫丹医疗器械有限公司 | Rotatable handrail and dental treatment chair |
| CN213154950U (en) * | 2020-08-10 | 2021-05-11 | 佛山市科智美家具有限公司 | Armchair lifting mechanism |
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