CN214230610U - Chair wheel structure of movable swivel chair - Google Patents
Chair wheel structure of movable swivel chair Download PDFInfo
- Publication number
- CN214230610U CN214230610U CN202120273255.0U CN202120273255U CN214230610U CN 214230610 U CN214230610 U CN 214230610U CN 202120273255 U CN202120273255 U CN 202120273255U CN 214230610 U CN214230610 U CN 214230610U
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- CN
- China
- Prior art keywords
- rotating shaft
- supporting seat
- wheel
- rotating
- hole
- 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
- 238000013016 damping Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Images
Abstract
The utility model provides a chair wheel structure of portable swivel chair, include: the two groups of rotating wheels are oppositely arranged, the rotating shaft is connected with the rotating wheels, and a supporting seat is arranged between the rotating wheels; a through hole is arranged on the supporting seat, and a supporting rod is arranged on the through hole; the rotating shaft penetrates through the through hole to be connected with the rotating wheel, and a gap is reserved between the rotating shaft and the through hole; the rotating shaft is provided with a buffer device, and one end of the buffer device extends into the through hole and is sleeved on the supporting rod; the top of the supporting seat is provided with a connecting rod; when the connecting rod applies pressure in the vertical direction to the supporting seat, the supporting seat decomposes the pressure in the vertical direction transferred by the connecting rod to the buffer device; the utility model limits the buffer device on the rotating shaft through the supporting seat, and can effectively disperse the vertical stamping acting force borne by the rotating shaft; in addition, the rotating shaft arranged at the bottom of the supporting seat can be contacted with the ground after being pressed so as to share the stress of the rotating wheel and facilitate the rotation of the rotating wheel, thereby enhancing the bearing capacity of the chair wheel.
Description
Technical Field
The utility model relates to a chair wheel field specifically is a chair wheel structure of portable swivel chair.
Background
The existing wheel chairs are generally installed at the bottom of the front ends of the support legs, and in order to improve the supporting force of the support legs, people usually increase the material of the support legs to improve the durability of the support legs, but the gravity borne by the wheel chairs is increased. The chair wheel is usually made of metal or engineering plastics under the condition of no special requirement, although the wear resistance of the metal material is stronger, the chair wheel and the support legs are only fixed through bolts, so that the stress of the chair wheel is larger, and the chair wheel is generally fixed through a rod shaft to realize rotation; when a human body leans on the seat, the seat wheel is pressed downwards under stress, and due to the fact that the two ends of the rod shaft in the seat wheel are stressed unevenly due to the fact that the ground is inclined or the human body leans against the inclined surface, the rod shaft is prone to lateral bending and easy to damage, the seat wheel of the seat needs to be replaced frequently, and therefore a seat wheel structure with high bearing capacity needs to be designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chair wheel structure of portable swivel chair has solved the problem that its axostylus axostyle pressurized of the chair wheel that exists among the prior art can be easily buckled and damaged.
In order to achieve the above object, the utility model provides a following technical scheme: a wheel structure of a movable swivel chair, comprising: the two groups of rotating wheels are oppositely arranged, the rotating shaft is connected with the rotating wheels, and a supporting seat is arranged between the rotating wheels; a through hole is arranged on the supporting seat, and a supporting rod is erected in the through hole; the rotating shaft penetrates through the through hole to be connected with the rotating wheel, and a gap is reserved between the rotating shaft and the through hole; the rotating shaft is provided with a buffer device, one end of the buffer device extends into the through hole and is sleeved on the supporting rod, and the other end of the buffer device is abutted against the rotating wheel; the top of the supporting seat is provided with a connecting rod; when the connecting rod gives the pressure of vertical direction towards the supporting seat, the supporting seat decomposes the pressure of vertical direction of connecting rod transmission to buffer on to avoid the runner to receive the force suddenly and drive the rod axle crooked.
As a preferred aspect of the present invention, the buffering device includes: the movable rod, the first bearing, the fixed plate and the spring; the first bearings are symmetrically sleeved on the rotating shaft; one end of the spring is abutted against the side wall of the rotating wheel, and the other end of the spring is abutted against the first bearing so as to realize effective positioning of the spring; the fixing plate is arranged on the outer surface of the first bearing; one end of the movable rod is hinged with the fixed plate, and the other end of the movable rod is hinged with the supporting seat.
Furthermore, a sliding groove is formed in the fixed plate, one end of the movable rod is hinged in the sliding groove, the movable rod can move along the sliding groove, and the other end of the movable rod is connected to the supporting rod in a sleeved mode so as to achieve limiting rotation of the movable rod.
Furthermore, all be equipped with the tight pulley on the both ends terminal surface of pivot, tight pulley fixed connection runner is by the tight pulley that is equipped with in order to increase the area of contact of pivot and runner to reduce the pressurized of runner.
As a preferred scheme of the utility model, the axis of rotation is inserted and is equipped with in the bottom of supporting seat, and the surface of runner and axis of rotation all is stained with the rubber pad, just can contact with the ground end after the axis of rotation atress that the supporting seat bottom that is equipped with to reduce the atress of chair, and the runner of being convenient for rotates.
Furthermore, the top of the connecting rod is sleeved with a second bearing so as to facilitate the rotation of the rotating wheel when being connected with the chair leg.
Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model limits the buffer device on the rotating shaft through the supporting seat, and can effectively disperse the vertical stamping acting force borne by the rotating shaft; in addition, the rotating shaft arranged at the bottom of the supporting seat can be contacted with the ground after being pressed so as to share the stress of the rotating wheel and facilitate the rotation of the rotating wheel, thereby enhancing the integral bearing capacity of the chair wheel.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1;
in the figure: 1. a connecting rod; 2. a rotating shaft; 21. a fixed wheel; 3. a rotating wheel; 4. a supporting seat; 41. a through hole; 42. a support bar; 5. a buffer device; 51. a movable rod; 52. a first bearing; 53. a fixing plate; 531. a chute; 54. a spring; 6. a rubber pad; 7. a second bearing; 8. and rotating the shaft.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
As shown in fig. 1 and 2, a wheel structure of a movable swivel chair comprises: two groups of rotating wheels 3 (as shown in fig. 1, two groups of rotating wheels 3 are arranged) which are arranged oppositely, and a rotating shaft 2 connected with the rotating wheels 3, wherein a supporting seat 4 is arranged between the rotating wheels 3; a through hole 41 is arranged on the supporting seat 4, and a supporting rod 42 is erected in the through hole 41; the rotating shaft 2 penetrates through the through hole 41 to be connected with the rotating wheel 3, and a gap is reserved between the rotating shaft 2 and the through hole 41; the two opposite ends of the rotating shaft 2 are provided with buffer devices 5 (as shown in fig. 1, two sets of buffer devices 5 are provided, one end of each buffer device 5 extends into the through hole 41 and is sleeved on the support rod 42, the other end of each buffer device 5 abuts against the side wall of the rotating wheel 3, the top of the support seat 4 is provided with the connecting rod 1, and when the connecting rod 1 applies vertically downward pressure to the support seat 4, the support seat 4 decomposes the vertically downward pressure transmitted by the connecting rod 1 to the buffer devices 5 on the left side and the right side so as to effectively protect the rotating shaft 2.
As shown in fig. 1, the damper 5 includes: a movable rod 51, a first bearing 52, a fixed plate 53, a spring 54; the number of the first bearings 52 is two, and the first bearings 52 are symmetrically sleeved on the rotating shaft 2; one end of the spring 54 abuts against the side wall of the runner 3, and the other end abuts against the outer ring of the first bearing 52; the fixing plate 53 is disposed on an outer surface of the first bearing 52 to achieve relative fixation of the fixing plate 53; one end of the movable rod 51 is hinged with the fixed plate 53, and the other end is hinged with the supporting seat 4; the utility model discloses in, two movable rods 51 are "eight" style of calligraphy and set up, and when receiving the effort of pushing down, two movable rods 51's horizontal opposite direction removes, converts vertical decurrent atress into two springs 54 that the level set up on, can change the effect of effort direction and dispersion effectively.
As shown in fig. 1, a sliding slot 531 is formed on the fixed plate 53, one end of the movable rod 51 is hinged in the sliding slot 531, the movable rod 51 can slide along the sliding slot 531, and the other end is hinged on the support rod 42.
As shown in fig. 1, the left and right end surfaces of the rotating shaft 2 are provided with fixed wheels 21 (i.e. two fixed wheels 21 are provided as shown in fig. 1), and the fixed wheels 21 are embedded in the rotating wheel 3 to prevent the rotating wheel 3 from separating from the rotating shaft 2.
As shown in fig. 1, a rotating shaft 8 is inserted into the bottom of the supporting seat 4, and after the supporting seat 4 is pressed, the rotating shaft 8 can contact the ground with the rotating wheel 3 simultaneously so as to share the stress of the rotating wheel 3, the rotating wheel 3 can normally move and operate conveniently, a rubber pad 6 is adhered to the outer surfaces of the rotating wheel 3 and the rotating shaft 8, and the outer surface of the rubber pad 6 is provided with grains to play a role in anti-skidding.
As shown in fig. 1, the top of the connecting rod 1 is sleeved with a second bearing 7, so that the rotating wheel 3 can rotate 360 degrees when being connected with the chair leg.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (6)
1. A wheel structure of a movable swivel chair, comprising: two sets of runners (3) and pivot (2) of connecting runner (3) that set up relatively, its characterized in that: a supporting seat (4) is arranged between the rotating wheels (3); a through hole (41) is formed in the supporting seat (4) in a penetrating manner, and a supporting rod (42) is erected in the through hole (41); the rotating shaft (2) penetrates through the through hole (41) to be connected with the rotating wheel (3), and a gap is reserved between the rotating shaft (2) and the through hole (41); a buffer device (5) is arranged on the rotating shaft (2), one end of the buffer device (5) extends into the through hole (41) and is sleeved on the supporting rod (42), and the other end of the buffer device is abutted against the rotating wheel (3); the top of the supporting seat (4) is provided with a connecting rod (1); when the connecting rod (1) gives pressure in the vertical direction towards the supporting seat (4), the supporting seat (4) decomposes the pressure in the vertical direction transmitted by the connecting rod (1) onto the buffer device (5).
2. A wheel structure of a movable swivel chair as claimed in claim 1, wherein: the damping device (5) comprises: a movable rod (51), a first bearing (52), a fixed plate (53) and a spring (54); the first bearings (52) are symmetrically sleeved on the rotating shaft (2); one end of the spring (54) is abutted against the side wall of the rotating wheel (3), and the other end of the spring is abutted against the first bearing (52); the fixing plate (53) is arranged on the outer surface of the first bearing (52); one end of the movable rod (51) is hinged with the fixed plate (53), and the other end of the movable rod is hinged with the supporting seat (4).
3. A wheel structure of a movable swivel chair as claimed in claim 2, wherein: a sliding groove (531) is formed in the fixed plate (53), one end of the movable rod (51) is hinged in the sliding groove (531), and the other end of the movable rod is hinged on the supporting rod (42).
4. A wheel structure of a movable swivel chair as claimed in claim 3, wherein: and the two end faces of the rotating shaft (2) are respectively provided with a fixed wheel (21), and the fixed wheels (21) are fixedly connected with the rotating wheel (3).
5. A chair wheel structure of a movable swivel chair as claimed in claim 4, wherein: a rotating shaft (8) is inserted into the bottom of the supporting seat (4), and rubber pads (6) are adhered to the outer surfaces of the rotating wheel (3) and the rotating shaft (8).
6. A wheel structure of a movable swivel chair as claimed in claim 1, wherein: and the top of the connecting rod (1) is sleeved with a second bearing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120273255.0U CN214230610U (en) | 2021-01-28 | 2021-01-28 | Chair wheel structure of movable swivel chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120273255.0U CN214230610U (en) | 2021-01-28 | 2021-01-28 | Chair wheel structure of movable swivel chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214230610U true CN214230610U (en) | 2021-09-21 |
Family
ID=77795487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120273255.0U Expired - Fee Related CN214230610U (en) | 2021-01-28 | 2021-01-28 | Chair wheel structure of movable swivel chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214230610U (en) |
-
2021
- 2021-01-28 CN CN202120273255.0U patent/CN214230610U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |