CN109864476B - Automatic locking chair - Google Patents
Automatic locking chair Download PDFInfo
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- CN109864476B CN109864476B CN201910215177.6A CN201910215177A CN109864476B CN 109864476 B CN109864476 B CN 109864476B CN 201910215177 A CN201910215177 A CN 201910215177A CN 109864476 B CN109864476 B CN 109864476B
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Abstract
The invention discloses an automatic locking chair, which belongs to the field of office equipment and comprises a chair body and a roller mechanism; the roller mechanism comprises a supporting part, a shell, a spring, a locking mechanism and a roller; a supporting part is arranged below the chair body; the supporting part can be stressed to move downwards, extends into the shell and is supported on the roller; the roller can be arranged in the shell in a grounded rolling manner; a spring is arranged between the shell and the supporting part; the spring is used for separating from the roller when the supporting part is not stressed; the locking mechanism can be linked with the supporting part moving downwards to hold the brake roller. Due to the structure, the automatic locking of the chair can be realized, and the chair is difficult to move when a person sits on the chair; when no one sits on the chair, the chair can be easily moved and adjusted.
Description
Technical Field
The invention belongs to the field of office equipment, and particularly relates to an automatic locking chair.
Background
The chair is a daily-life furniture, a seat with a backrest and armrests. The chair with the pulley is convenient to move and adjust, but the chair without the pulley is not stable, and although the lockable chair with the pulley is available on the market, the chair with the pulley is inconvenient to adjust every time; especially, it is inconvenient for students and white-collar workers who need to adjust their chairs frequently.
Disclosure of Invention
The invention aims to provide an automatic locking chair aiming at the defects, and the problem that the chair needs to be adjusted inconveniently every time is solved. In order to achieve the purpose, the invention provides the following technical scheme:
an automatic locking chair comprises a chair body and a roller mechanism; the roller mechanism comprises a supporting part, a shell, a spring, a locking mechanism and a roller; a supporting part is arranged below the chair body; the supporting part can be stressed to move downwards, extends into the shell and is supported on the roller; the roller can be arranged in the shell in a grounded rolling manner; a spring is arranged between the shell and the supporting part; the spring is used for separating from the roller when the supporting part is not stressed; the locking mechanism can be linked with the supporting part moving downwards to hold the brake roller.
Due to the structure, when a person sits on the chair, the chair body presses the supporting part downwards, and the supporting part can be forced to move downwards and extend into the shell until the supporting part is supported on the roller; meanwhile, the locking mechanism can be linked with the support part which moves downwards to brake the roller, so that the chair is difficult to move in the state; when no one sits on the chair, a spring is arranged between the shell and the supporting part; the spring is used for separating from the roller when the supporting part is not stressed; the rollers can be arranged in the shell in a grounding rolling manner and can drive the whole chair to move; the locking mechanism can be arranged in the shell to protect the locking mechanism and avoid collision.
Further, the locking mechanism comprises two rod parts; the rod part comprises a rod body hinged in the shell and a small roller arranged at one end of the rod body; the other end of the rod body and the lower end of the supporting part are both provided with an extruding part; the supporting part comprises inclined plane parts arranged on two sides of the lower part of the supporting part; the rod body is provided with a torsion spring which enables the rod body to keep a torsion trend, and the torsion spring is used for enabling a small roller at one end of the rod body to be attached to the inclined plane part all the time; when the inclined plane part moves downwards, the rod bodies of the two rod parts rotate in opposite directions, and the extrusion part at the other end of the rod body holds the brake roller.
Due to the structure, the locking mechanism comprises two rod parts which are symmetrically arranged; the supporting part comprises inclined plane parts arranged on two sides of the lower part of the supporting part; the rod body is provided with a torsion spring which enables the rod body to keep a torsion trend, and the torsion spring is used for enabling a small roller at one end of the rod body to be attached to the inclined plane part all the time; the torsion spring ensures that the rod body rotates after the inclined plane part moves upwards, and the extrusion part at the other end of the rod body is far away from the roller; the small roller is convenient for spreading the two rod bodies when the inclined plane part moves downwards; when the two rod bodies are propped open by the inclined plane part moving downwards, the extrusion part at the other end of the rod body brakes the roller; the lower end of the supporting part is also provided with an extrusion part, and the lower end of the supporting part can be pressed on the roller through the extrusion part; the squeezing part has better locking effect by locking the braking rollers from the upper part, the left part and the right part, and ensures that the chair is difficult to move when a person sits on the chair.
Furthermore, the extrusion part at the other end of the rod body can move in a certain angle.
Due to the structure, the extrusion part at the other end of the rod body is pressed on the roller through rotation, the extrusion part at the other end of the rod body can move in a certain angle, when not extruded, the extrusion part is slightly inclined downwards by gravity, when pressed, the cambered surface arranged on the extrusion part is just attached to the cambered surface of the roller, and the locking effect is better; the extrusion portion of supporting part lower extreme can not rotate because the supporting part moves down, and the last cambered surface that is equipped with of extrusion portion just in time laminates with the last cambered surface of gyro wheel.
Furthermore, the extrusion parts at the other ends of the two rod bodies respectively embrace and brake the left side and the right side of the roller.
Due to the structure, the squeezing parts brake the rollers from the upper part, the left part and the right part, the locking effect is better, and the chair is difficult to move when a person sits on the chair.
Furthermore, the extrusion part is made of rubber, and the roller is wrapped by a rubber material layer.
Due to the structure, the friction force is large, and the locking effect is good.
Further, the housing includes a cover portion and a barrel portion; the locking mechanism and the roller are arranged in the cover part; a cylinder part is connected above the cover part; the supporting part also comprises a guide part, a supporting rod and a supporting plate; the supporting rod penetrates through the spring, and two ends of the supporting rod are respectively fixed with the guide part and the supporting plate; the spring is supported between the cylinder part and the supporting plate; the lower part of the guide part is connected with the inclined plane part and can move in the cylinder part in a guiding way.
Due to the structure, the guide part realizes the guide that the whole supporting rod can only move up and down, the spring is supported between the barrel part and the supporting plate, and the supporting rod penetrates through the spring to prevent the spring from falling off.
Furthermore, a limiting step is arranged in the cylinder part; the limiting step is used for limiting the upward movement distance of the guide part.
Due to the structure, the cylindrical part is internally provided with the limiting step; the limiting step is used for limiting the upward movement distance of the guide part.
Furthermore, the support rod and the support plate are detachably connected.
Due to the structure, the installation of the integral roller mechanism is convenient.
The invention has the beneficial effects that:
1. when a person sits on the chair, the chair body presses the supporting part downwards, and the supporting part can be forced to move downwards and extend into the shell until the supporting part is supported on the roller; meanwhile, the locking mechanism can be linked with the support part which moves downwards to brake the roller, so that the chair is difficult to move in the state; when no one sits on the chair, a spring is arranged between the shell and the supporting part; the spring is used for separating from the roller when the supporting part is not stressed; the rollers can be arranged in the shell in a grounding rolling manner and can drive the whole chair to move.
Drawings
FIG. 1 is a schematic view of the present invention in an unstressed configuration;
FIG. 2 is a schematic view of the present invention in a stressed configuration;
in the drawings: 1-supporting part, 2-shell, 3-spring, 4-locking mechanism, 5-roller, 41-rod part, 42-rod body, 44-small roller, 43-extrusion part, 11-inclined plane part, 21-cover part, 22-cylinder part, 12-guide part, 13-supporting rod, 14-supporting plate and 23-limiting step.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and the embodiments, but the present invention is not limited to the following examples.
See figures 1-2. An automatic locking chair comprises a chair body and a roller mechanism; the roller mechanism comprises a supporting part 1, a shell 2, a spring 3, a locking mechanism 4 and a roller 5; a supporting part 1 is arranged below the chair body; the supporting part 1 can be forced to move downwards, extends into the shell 2 and is supported on the roller 5; the roller 5 can be arranged in the shell 2 in a grounded rolling mode; a spring 3 is arranged between the shell 2 and the supporting part 1; the spring 3 is used for separating from the roller 5 when the supporting part 1 is not stressed; the locking mechanism 4 can be linked with the support part 1 moving downwards to hold the brake roller 5. Due to the structure, when a person sits on the chair, the chair body presses the supporting part 1 downwards, and the supporting part 1 can be forced to move downwards and extend into the shell 2 until the supporting part 1 is supported on the roller 5; meanwhile, the locking mechanism 4 can be linked with the support part 1 moving downwards to brake the roller 5, and the chair is difficult to move in the state; when no one sits on the chair, a spring 3 is arranged between the shell 2 and the support part 1; the spring 3 is used for separating from the roller 5 when the supporting part 1 is not stressed; the roller 5 can be arranged in the shell 2 in a grounding rolling way and can drive the whole chair to move; the locking mechanism 4 may be disposed within the housing 2 to protect the locking mechanism 4 from collisions.
The locking mechanism 4 comprises two lever portions 41; the rod part 41 comprises a rod body 42 hinged in the shell 2 and a small roller 44 arranged at one end of the rod body 42; the other end of the rod body 42 and the lower end of the support part 1 are provided with extrusion parts 43; the supporting part 1 comprises inclined plane parts 11 arranged at two sides of the lower part of the supporting part; the shaft 42 is provided with a torsion spring which keeps the shaft in a torsion trend, and the torsion spring is used for enabling a small roller 44 at one end of the shaft 42 to be attached to the inclined plane part 11 all the time; when the inclined plane part 11 moves downwards, the shafts 42 of the two rods 41 rotate in opposite directions, and the squeezing parts 43 at the other ends of the shafts 42 brake the rollers 5. Due to the above structure, the locking mechanism 4 comprises two rod parts 41, and the two rod parts 41 are symmetrically arranged; the supporting part 1 comprises inclined plane parts 11 arranged at two sides of the lower part of the supporting part; the shaft 42 is provided with a torsion spring which keeps the shaft in a torsion trend, and the torsion spring is used for enabling a small roller 44 at one end of the shaft 42 to be attached to the inclined plane part 11 all the time; the torsion spring ensures that the rod body 42 rotates after the inclined plane part 11 moves upwards, and the extrusion part 43 at the other end of the rod body 42 is far away from the roller 5; the small roller 44 is convenient for spreading the two shafts 42 when the inclined plane part 11 moves downwards; when the two shafts 42 are opened by the inclined plane part 11 moving downwards, the extrusion part 43 at the other end of the shaft 42 brakes the roller 5; the lower end of the supporting part 1 is also provided with a squeezing part 43, and the lower end of the supporting part 1 can be pressed on the roller 5 through the squeezing part 43; the squeezing part 43 has better locking effect from the upper, left and right band-type brake rollers 5, and ensures that the chair is difficult to move when a person sits on the chair.
The pressing part 43 at the other end of the shaft 42 is movable within a certain angle. Because the rod body 42 rotates, the extrusion part 43 at the other end of the rod body 42 is pressed on the roller 5, the extrusion part 43 at the other end of the rod body 42 can move in a certain angle, when not extruded, the extrusion part is slightly inclined downwards by gravity, and when pressed, the cambered surface arranged on the extrusion part 43 is just attached to the cambered surface of the roller 5, so that the locking effect is better; the pressing part 43 at the lower end of the supporting part 1 cannot rotate, and because the supporting part 1 moves downwards, the cambered surface arranged on the pressing part 43 is just attached to the upper cambered surface of the roller 5.
The squeezing parts 43 at the other ends of the two shafts 42 respectively embrace and brake the left and right sides of the roller 5. Due to the structure, the squeezing parts 43 have better locking effect from the upper, the left and the right braking rollers 5, and the chair is ensured to be difficult to move when a person sits on the chair.
The extrusion part 43 is made of rubber, and the roller 5 is wrapped by a rubber layer. The friction is large, and the locking effect is good.
The housing 2 includes a cover portion 21 and a cylindrical portion 22; the locking mechanism 4 and the roller 5 are both arranged in the cover part 21; a cylinder part 22 is connected above the cover part 21; the support part 1 further comprises a guide part 12, a support rod 13 and a support plate 14; the supporting rod 13 penetrates through the spring 3, and two ends of the supporting rod are respectively fixed with the guide part 12 and the supporting plate 14; the spring 3 is supported between the cylinder part 22 and the support plate 14; the lower part of the guide part 12 is connected with the inclined plane part 11 and can move in the cylinder part 22 in a guiding way. Due to the above structure, the guide part 12 realizes the guide that the whole support rod 13 can only move up and down, the spring 3 is supported between the barrel part 22 and the support plate 14, and the support rod 13 penetrates through the spring 3 to prevent the spring 3 from falling off.
A limiting step 23 is arranged in the barrel part 22; the limit step 23 is used to limit the upward movement distance of the guide part 12. The support rod 13 and the support plate 14 are detachably connected, so that the installation of the integral roller mechanism is facilitated.
In summary, when a person sits on the chair, the chair body presses the support part 1 downwards, and the support part 1 can be forced to move downwards and extend into the shell 2 until the support part 1 is supported on the roller 5; meanwhile, the locking mechanism 4 can be linked with the support part 1 moving downwards to brake the roller 5, and the chair is difficult to move in the state; when no one sits on the chair, a spring 3 is arranged between the shell 2 and the support part 1; the spring 3 is used for separating from the roller 5 when the supporting part 1 is not stressed; the rollers 5 can be arranged in the shell 2 in a grounding rolling way and can drive the whole chair to move.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. An automatic locking chair is characterized by comprising a chair body and a roller mechanism; the roller mechanism comprises a supporting part (1), a shell (2), a spring (3), a locking mechanism (4) and a roller (5); a supporting part (1) is arranged below the chair body; the supporting part (1) can be forced to move downwards, extends into the shell (2), and is supported on the roller (5); the roller (5) can be arranged in the shell (2) in a grounded rolling manner; a spring (3) is arranged between the shell (2) and the supporting part (1); the spring (3) is used for separating the roller (5) when the supporting part (1) is not stressed; the locking mechanism (4) can be linked with the support part (1) moving downwards to brake the roller (5); the locking mechanism (4) comprises two rod parts (41); the rod part (41) comprises a rod body (42) hinged in the shell (2) and a small roller (44) arranged at one end of the rod body (42); the other end of the rod body (42) and the lower end of the supporting part (1) are provided with extrusion parts (43); the supporting part (1) comprises inclined plane parts (11) arranged on two sides of the lower part of the supporting part; the shaft body (42) is provided with a torsion spring which enables the shaft body to keep a twisting trend, and the torsion spring is used for enabling a small roller (44) at one end of the shaft body (42) to be attached to the inclined plane part (11) all the time; when the inclined plane part (11) moves downwards, the rod bodies (42) of the two rod parts (41) rotate reversely, and the extrusion part (43) at the other end of the rod body (42) embraces the brake roller (5).
2. The automatic locking chair as claimed in claim 1, wherein the pressing part (43) at the other end of the shaft (42) is movable within a certain angle.
3. The automatic locking chair as claimed in claim 2, wherein the pressing parts (43) at the other ends of the two rods (42) are respectively braked at the left and right sides of the roller (5).
4. An automatic locking chair as claimed in claim 1, characterised in that said pressing portion (43) is made of rubber and said roller (5) is coated with a layer of rubber.
5. An automatic locking chair as claimed in any one of claims 1 to 4, characterised in that the housing (2) comprises a hood (21) and a barrel (22); the locking mechanism (4) and the roller (5) are both arranged in the cover part (21); a cylinder part (22) is connected above the cover part (21); the support part (1) further comprises a guide part (12), a support rod (13) and a support plate (14); the supporting rod (13) penetrates through the spring (3), and two ends of the supporting rod are respectively fixed with the guide part (12) and the supporting plate (14); the spring (3) is supported between the cylinder part (22) and the support plate (14); the lower part of the guide part (12) is connected with the inclined surface part (11) and can move in the cylinder part (22) in a guiding way.
6. An automatic locking chair as claimed in claim 5, characterized in that the barrel portion (22) is provided with a limit step (23); the limiting step (23) is used for limiting the upward movement distance of the guide part (12).
7. An automatic locking chair as claimed in claim 5, characterised in that the support bar (13) is removably connected to the support plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215177.6A CN109864476B (en) | 2019-03-21 | 2019-03-21 | Automatic locking chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215177.6A CN109864476B (en) | 2019-03-21 | 2019-03-21 | Automatic locking chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109864476A CN109864476A (en) | 2019-06-11 |
| CN109864476B true CN109864476B (en) | 2022-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910215177.6A Active CN109864476B (en) | 2019-03-21 | 2019-03-21 | Automatic locking chair |
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| CN (1) | CN109864476B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114481862A (en) * | 2022-01-06 | 2022-05-13 | 中国五冶集团有限公司 | Movable truss device and construction process |
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| CN109864476A (en) | 2019-06-11 |
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