CN111265042A - Chassis structure of swivel chair - Google Patents
Chassis structure of swivel chair Download PDFInfo
- Publication number
- CN111265042A CN111265042A CN201811480601.1A CN201811480601A CN111265042A CN 111265042 A CN111265042 A CN 111265042A CN 201811480601 A CN201811480601 A CN 201811480601A CN 111265042 A CN111265042 A CN 111265042A
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- Prior art keywords
- gear
- locking
- transmission
- pressure spring
- bottom shell
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/18—Chairs or stools with rotatable seat
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/20—Chairs or stools with vertically-adjustable seats
- A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
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- 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
- A47C7/002—Chair or stool bases
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a chassis structure of a swivel chair, which comprises a bottom plate, a bottom shell arranged at the lower side of the bottom plate, a tail plate linked with a backrest, a reclining leisure structure capable of realizing the reclining function, and a leisure angle locking structure capable of adjusting the leisure angle; the tilting leisure structure comprises a fulcrum shaft which is connected between the tail plate and the bottom shell and plays a role of a fulcrum, a rotating shaft which is connected between the tail plate and the bottom shell and can rotate around the fulcrum shaft, and a pressure spring which is arranged in the bottom shell and plays a role of returning the rotating shaft; the free angle locking structure comprises a free locking handle arranged outside the bottom shell, a gear locking tooth arranged in the base and provided with a plurality of gear holes, a locking pin arranged in the free locking handle and capable of being inserted into the corresponding gear holes, and a gear piece sleeved on the support shaft and the rotating shaft, wherein a first arc-shaped tooth edge is arranged on the gear locking tooth, a second arc-shaped tooth edge meshed with the first arc-shaped tooth edge is arranged on the gear piece, and therefore the gear locking tooth and the gear piece are in meshing transmission to form a split gear transmission structure.
Description
Technical Field
The invention relates to the technical field of swivel chairs, in particular to a chassis structure of a swivel chair.
Background
People invent a swivel chair capable of lifting, leaning and rotating in order to provide comfort of a seat, the swivel chair mainly comprises chair feet, a pneumatic rod, a cylinder, a chassis structure, a cushion and a backrest, various functions of the swivel chair are mainly realized through the chassis structure, the design of a free angle locking structure of the conventional chassis structure is complicated, the structural design is unreasonable, the swivel chair is generally a translation transmission type structure consisting of a transmission rod, a transmission sheet and a spring, the transmission of the translation transmission type structure is not stable and smooth enough, the transmission speed is slow, the adjusting efficiency of a rotating free locking handle is low, the transmission stability is general, the required design space is large, the thickness of the bottom shell is large, the design is difficult to be light and thin, the parts are various, the production processes are various, the production cost is high, and the product lacks competitiveness.
Therefore, how to realize a simple structure is ingenious and reasonable, gear drive is steady smooth, and transmission stability is high, and transmission speed is fast, rotates carefree locking handle's regulation efficiency height, and it is convenient to use, and effectively reduces the design space, and the drain pan can frivolous design, and the chassis structure of the swivel chair that spare part quantity is simplified is the technological problem that awaits a urgent need in the industry.
Disclosure of Invention
The invention mainly aims to provide a chassis structure of a swivel chair, aiming at realizing the chassis structure of the swivel chair which has simple, ingenious and reasonable structure, stable and smooth gear transmission, high transmission stability, high transmission speed, high adjustment efficiency of rotating a free locking handle, convenient use, effectively reduced design space, light and thin design of a bottom shell and simplified number of parts.
The invention provides a chassis structure of a swivel chair, which comprises a bottom plate, a bottom shell arranged at the lower side of the bottom plate, a tail plate linked with a backrest, a reclining leisure structure capable of realizing the reclining function, and a leisure angle locking structure capable of adjusting the leisure angle; the tilting leisure structure comprises a fulcrum shaft which is connected between the tail plate and the bottom shell and plays a role of a fulcrum, a rotating shaft which is connected between the tail plate and the bottom shell and can rotate around the fulcrum shaft, and a pressure spring which is arranged in the bottom shell and plays a role of returning the rotating shaft; the free angle locking structure comprises a free locking handle arranged outside the bottom shell, a gear locking tooth which is arranged in the base and is provided with a plurality of gear holes, a locking pin which is arranged in the free locking handle and can be inserted into the corresponding gear holes, and a gear piece which is sleeved on the fulcrum shaft and the rotating shaft, wherein the gear locking tooth is provided with a first arc-shaped tooth edge, the gear piece is provided with a second arc-shaped tooth edge which is in meshing transmission with the first arc-shaped tooth edge, the gear locking tooth and the gear piece are in meshing transmission to form a split gear transmission structure, when the user leans on the free, the tail plate rotates along with the backrest, the tail plate drives the rotating shaft to rotate around the fulcrum shaft so as to drive the gear piece to rotate, the gear piece drives the gear locking tooth to rotate in a meshing transmission mode so as to enable the gear holes to move, when the free angle needs to, the locking pin card is inserted into the corresponding gear hole by rotating the free locking handle, thereby playing the free angle locking function.
Preferably, the reclining structure further comprises a T-shaped sleeve sleeved outside the rotating shaft, and a protective rubber arranged at the rear end of the bottom case and hinged to the tail plate through a connecting shaft, wherein the T-shaped sleeve comprises a sleeve part sleeved outside the rotating shaft, and a pressure spring base part located at the bottom of the pressure spring and extending outwards from the side edge of the sleeve part.
Preferably, the chassis structure further comprises a lifting function structure, a free force adjusting structure and a front-back sliding structure.
Preferably, the structure is adjusted to free power includes that it stretches into the inside dynamics adjusting screw of drain pan from the drain pan epitaxy, locate outside the dynamics adjusting screw and can control the sloping block is adjusted to the dynamics that is triangle-shaped along with the rotation of dynamics adjusting screw, install in the pressure spring upper end and can adjust the sloping block along with the dynamics and control the pressure spring that is triangle-shaped that moves about and reciprocate that the sloping block is adjusted to the dynamics, the sloping block is adjusted to the pressure spring passes through the connecting rod and is connected with the telescopic pressure spring base part of T style of calligraphy, thereby rotate dynamics adjusting screw and make the dynamics adjust the sloping block and control about the sloping block and make the pressure spring adjust the sloping block and reciprocate, thereby the reciprocating of pressure spring adjust the sloping block to the pressure spring play the rebound.
Preferably, the elevating function structure locates the gum cover outside the counter roll including the cover, locate on the drain pan and the cylinder switch of the cylinder work of steerable swivel chair, be equipped with gum cover transmission seat on the side of gum cover, the air spindle head of steerable cylinder switch work, the elevating function structure still includes and is connected and can drive gum cover transmission seat pivoted drive strip with gum cover transmission seat, the cover is located outside the dynamics adjusting screw and can drive the lift adjustment handle that the drive strip removed, thereby it can drive the drive strip and remove to break the lift adjustment handle off with the fingers and thumb and drive the gum cover transmission seat and rotate, thereby the air spindle head rotates the work of control cylinder switch along with the rotation of gum cover transmission seat.
Preferably, the front-back sliding structure comprises a sliding plate arranged between the swivel seat cushion and the bottom plate and provided with a plurality of adjusting holes, a sliding plate locking sleeve arranged outside the locking pin, a transmission rod in transmission connection with the sliding plate locking sleeve, a clamping strip capable of moving up and down along with the movement of the transmission rod and being clamped into the adjusting holes, and a return spring playing a return role for the transmission rod.
The chassis structure of the swivel chair has the advantages of simple, ingenious and reasonable structure, stable and smooth gear transmission, high transmission stability, high transmission speed, high adjustment efficiency of the rotating free-locking handle, convenience in use, effective reduction of design space, light and thin design of the bottom shell and simplification of the number of parts.
Drawings
FIG. 1 is a perspective view of a swivel chair according to an embodiment of the present invention;
FIG. 2 is a second perspective view of the base structure of the swivel chair according to the present invention;
FIG. 3 is an exploded view of an embodiment of the base structure of the swivel chair of the present invention;
FIG. 4 is a schematic view showing the internal structure of an embodiment of the chassis structure of the swivel chair of the present invention, wherein the compression spring is not shown;
fig. 5 is a schematic perspective view of a T-shaped sleeve according to an embodiment of the base structure of the swivel chair of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 5, an embodiment of a chassis structure of a swivel chair of the present invention is provided, which includes a bottom plate 101, a bottom case 102 installed at a lower side of the bottom plate 101, a tailboard 103 linked with a backrest, a reclining structure capable of performing a reclining function, and a reclining angle locking structure capable of adjusting a reclining angle.
The reclining mechanism includes a fulcrum 104 connected between the tailgate 103 and the bottom case 102 and functioning as a fulcrum, a rotating shaft 105 connected between the tailgate 103 and the bottom case 102 and rotatable around the fulcrum 104, and a pressure spring 106 disposed in the bottom case 102 and functioning to return the rotating shaft 105. The reclining mechanism further comprises a T-shaped sleeve sleeved outside the rotating shaft 105, and a protective rubber 107 disposed at the rear end of the bottom case 102 and hinged to the tail plate 103 through a connecting shaft, wherein the T-shaped sleeve comprises a sleeve portion 108 sleeved outside the rotating shaft 105, and a pressure spring base portion 109 extending outward from the side edge of the sleeve portion 108 and located at the bottom of the pressure spring 106.
The locking structure for free angle comprises a free locking handle 110 arranged outside the bottom case 102, a gear locking tooth 112 provided with a plurality of gear holes 111 and positioned in the base, a locking pin arranged in the free locking handle 110 and capable of being inserted into the corresponding gear holes 111, and a gear piece 113 sleeved on the fulcrum shaft 104 and the rotating shaft 105, wherein a first arc-shaped tooth edge is arranged on the gear locking tooth 112, and a second arc-shaped tooth edge meshed with the first arc-shaped tooth edge for transmission is arranged on the gear piece 113, in the embodiment, 2 gear locking teeth 112 and 2 gear pieces 113 are arranged. The gear locking teeth 112 and the gear piece 113 are in meshing transmission, so that a split type gear transmission structure is formed. When the user leans on the chair, the tailboard 103 rotates along with the backrest, the tailboard 103 drives the rotating shaft 105 to rotate around the fulcrum shaft 104 so as to drive the gear piece 113 to rotate, the gear piece 113 drives the gear locking tooth 112 to rotate through a meshing transmission mode so as to enable the gear hole 111 to move, and when the chair angle needs to be locked, the rocking locking handle 110 is rotated so as to enable the locking pin card to be inserted into the corresponding gear hole 111, so that the rocking angle locking function is achieved.
The split type gear transmission structure is formed by meshing transmission between the gear locking teeth 112 and the gear pieces 113, the structure is simple, ingenious and reasonable, the gear transmission is stable and smooth, the transmission stability is high, besides the gear transmission structure, the split type gear transmission structure is designed, under the condition that the same transmission distance is achieved and the same angle is rotated, the integrated type gear structure can complete the transmission operation only by a larger gear edge, the split type gear structure can complete the transmission operation with the same transmission distance only by half of the gear edge, the rotating angle is small, the volume of the split type gear structure is much smaller than that of the integrated type gear structure, the transmission speed of the split type gear structure is high, the design space is effectively reduced, the bottom shell 102 can be lightened and thinned, the adjustment efficiency of the rotating free locking handle 110 is high, and the use is convenient, and the number of parts of the free angle locking structure is simplified, the production process is simplified, the production cost is greatly reduced, and the product competitiveness is high.
The chassis structure further comprises a lifting function structure, a free force adjusting structure and a front-back sliding structure.
The free force adjusting structure comprises a force adjusting screw 114 extending into the bottom shell 102 from the outside of the bottom shell 102, a force adjusting rocker 127 in transmission connection with the force adjusting screw 114, a triangular force adjusting inclined block 115 arranged outside the force adjusting screw 114 and capable of moving left and right along with the rotation of the force adjusting screw 114, a triangular pressure spring adjusting inclined block 116 arranged at the upper end of the pressure spring 106 and capable of moving up and down along with the left and right movement of the force adjusting inclined block 115, the pressure spring adjusting inclined block 116 is connected with the pressure spring base part 109 of the T-shaped sleeve through a connecting rod, the force adjusting screw 114 is rotated to enable the force adjusting inclined block 115 to move left and right, so that the pressure spring adjusting inclined block 116 moves up and down, the pressure spring adjusting inclined block 116 moves up and down to adjust the resilience of the pressure spring 106 by compressing the pressure spring 106, and the free force adjusting function is achieved.
The lifting function structure comprises a rubber sleeve 117 sleeved outside the fulcrum shaft 104, an air cylinder switch arranged on the bottom shell 102 and capable of controlling an air cylinder of the swivel chair to work, a rubber sleeve transmission seat 118 arranged on the side face of the rubber sleeve 117 and an air rod head 119 capable of controlling the air cylinder switch to work, the lifting function structure further comprises a transmission strip 120 which is connected with the rubber sleeve transmission seat 118 and capable of driving the rubber sleeve transmission seat 118 to rotate, a lifting adjusting handle 121 which is sleeved outside the force adjusting screw 114 and capable of driving the transmission strip 120 to move, the lifting adjusting handle 121 can be pulled to drive the transmission strip 120 to move so as to drive the rubber sleeve transmission seat 118 to rotate, the air rod head 119 rotates along with the rotation of the rubber sleeve transmission seat 118 to control the air cylinder switch to work, and therefore the lifting function is achieved.
The front-back sliding structure comprises a sliding plate 122 which is arranged between a seat cushion and a bottom plate 101 and is provided with a plurality of adjusting holes, a sliding plate locking sleeve 123 which is arranged outside a locking pin, a transmission rod 124 which is in transmission connection with the sliding plate locking sleeve 123, a clamping strip 125 which can move up and down along with the movement of the transmission rod 124 and can be clamped in the adjusting holes, and a return spring 126 which plays a return role for the transmission rod 124.
The chassis structure of the swivel chair has the functions of leaning, free angle locking, free force adjusting, lifting, front and back sliding locking and the like, and the swivel chair has various functions.
The invention realizes the chassis structure of the swivel chair, which has the advantages of simple, ingenious and reasonable structure, stable and smooth gear transmission, high transmission stability, high transmission speed, high adjustment efficiency of the rotating free locking handle 110, convenient use, effective reduction of design space, light and thin design of the bottom shell 102 and simplified number of parts.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (6)
1. The chassis structure of the swivel chair is characterized by comprising a bottom plate, a bottom shell arranged at the lower side of the bottom plate, a tail plate linked with a backrest, a reclining leisure structure capable of realizing the reclining leisure function, and a leisure angle locking structure capable of adjusting the leisure angle;
the tilting leisure structure comprises a fulcrum shaft which is connected between the tail plate and the bottom shell and plays a role of a fulcrum, a rotating shaft which is connected between the tail plate and the bottom shell and can rotate around the fulcrum shaft, and a pressure spring which is arranged in the bottom shell and plays a role of returning the rotating shaft;
the free angle locking structure comprises a free locking handle arranged outside the bottom shell, a gear locking tooth arranged in the base and provided with a plurality of gear holes, a locking pin arranged in the free locking handle and capable of being inserted into the corresponding gear holes, and a gear piece sleeved on the support shaft and the rotating shaft, wherein a first arc-shaped tooth edge is arranged on the gear locking tooth, a second arc-shaped tooth edge meshed with the first arc-shaped tooth edge is arranged on the gear piece, and therefore the gear locking tooth and the gear piece are in meshing transmission to form a split gear transmission structure.
2. The base structure of the swivel chair of claim 1, wherein the reclining mechanism further comprises a T-shaped sleeve sleeved outside the rotating shaft, and a protective rubber provided at the rear end of the bottom shell and hinged to the tailgate by a connecting shaft, wherein the T-shaped sleeve comprises a sleeve part sleeved outside the rotating shaft, and a pressure spring base part located at the bottom of the pressure spring and extending outward from the side edge of the sleeve part.
3. The base structure of the swivel chair of claim 2, wherein the base structure further comprises a lifting function structure, a free force adjusting structure, and a front-back sliding structure.
4. The base plate structure of the swivel chair of claim 3, wherein the free force adjusting structure comprises a force adjusting screw rod extending into the bottom shell from the outer side of the bottom shell, a triangular force adjusting inclined block arranged outside the force adjusting screw rod and capable of moving left and right along with the rotation of the force adjusting screw rod, and a triangular pressure spring adjusting inclined block arranged at the upper end of the pressure spring and capable of moving up and down along with the left and right movement of the force adjusting inclined block, wherein the pressure spring adjusting inclined block is connected with a pressure spring base part of the T-shaped sleeve through a connecting rod, the force adjusting screw rod is rotated to move the force adjusting inclined block left and right so as to move the pressure spring adjusting inclined block up and down, and the up and down movement of the pressure spring adjusting inclined block compresses the pressure spring to adjust the resilience of the pressure spring and further adjust.
5. The chassis structure of a swivel chair according to claim 4, wherein the lifting function structure comprises a rubber sleeve sleeved outside the fulcrum shaft, a cylinder switch disposed on the bottom shell and capable of controlling the operation of a cylinder of the swivel chair, a rubber sleeve transmission seat disposed on a side surface of the rubber sleeve, and a gas rod head capable of controlling the operation of the cylinder switch, the lifting function structure further comprises a transmission strip connected with the rubber sleeve transmission seat and capable of driving the rubber sleeve transmission seat to rotate, and a lifting adjustment handle sleeved outside the force adjustment screw and capable of driving the transmission strip to move, the lifting adjustment handle is pulled to drive the transmission strip to move so as to drive the rubber sleeve transmission seat to rotate, and the gas rod head rotates along with the rotation of the rubber sleeve transmission seat to control the operation of the cylinder switch.
6. A chassis structure of a swivel chair as claimed in claim 3, 4 or 5, wherein the front and rear sliding structure comprises a sliding plate disposed between the seat cushion and the bottom plate and having a plurality of adjustment holes, a sliding plate locking sleeve disposed outside the locking pin, a transmission rod in transmission connection with the sliding plate locking sleeve, a locking bar capable of moving up and down with the movement of the transmission rod and being inserted into the adjustment holes, and a return spring for returning the transmission rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480601.1A CN111265042A (en) | 2018-12-05 | 2018-12-05 | Chassis structure of swivel chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480601.1A CN111265042A (en) | 2018-12-05 | 2018-12-05 | Chassis structure of swivel chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111265042A true CN111265042A (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811480601.1A Pending CN111265042A (en) | 2018-12-05 | 2018-12-05 | Chassis structure of swivel chair |
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| Country | Link |
|---|---|
| CN (1) | CN111265042A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957658A (en) * | 2021-02-05 | 2021-06-15 | 河南省中医院（河南中医药大学第二附属医院） | Cardiovascular disease rehabilitation device |
-
2018
- 2018-12-05 CN CN201811480601.1A patent/CN111265042A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112957658A (en) * | 2021-02-05 | 2021-06-15 | 河南省中医院（河南中医药大学第二附属医院） | Cardiovascular disease rehabilitation device |
| CN112957658B (en) * | 2021-02-05 | 2022-03-08 | 河南省中医院（河南中医药大学第二附属医院） | Cardiovascular disease rehabilitation device |
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