CN111481008A - Seat tray structure and office chair - Google Patents
Seat tray structure and office chair Download PDFInfo
- Publication number
- CN111481008A CN111481008A CN202010523918.XA CN202010523918A CN111481008A CN 111481008 A CN111481008 A CN 111481008A CN 202010523918 A CN202010523918 A CN 202010523918A CN 111481008 A CN111481008 A CN 111481008A
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- Prior art keywords
- seat
- base
- pin
- fixed
- tray structure
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims description 4
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 230000007306 turnover Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010959 steel Substances 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
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention provides a seat tray structure and an office seat, which comprise a base, a large disc, a turnover cover and a supporting seat, wherein a third pin is fixed at one end of the supporting seat, which is far away from the large disc, a movable hole for the third pin to pass through is formed in the turnover cover, and the inner wall of the movable hole and the outer wall of the third pin are arranged at intervals; the fixed seat of adjusting in supporting seat bottom, it sets up two at least gear grooves to adjust the seat to be close to base one side, rotate on the base and connect an regulation pole, it connects a locking plate to adjust the pole through coupling mechanism, the rotation in the middle part of lockplate is installed on the base, coupling mechanism includes and adjusts the fixed regulating block of pole, one end is connected on the regulating block and the other end is connected telescopic elasticity on the lockplate and holds the power piece, elasticity holds the line of the flexible direction of power piece along its two extreme points, it is protruding to be fixed with the location on the regulating block, the base is located the spacing seat of regulating block below installation elasticity. This scheme replaces two original little pressure springs with an elasticity and holds the power piece, and the structure is simpler, simple to operate.
Description
Technical Field
The invention relates to the field of pneumatic seats, in particular to a seat tray structure and an office seat.
Background
The seat tray is a core component of the office seat, and can complete functions of adjusting the inclination angle of the backrest and the like so as to meet the requirement of comfort of a user.
Its structure of seat tray is its swivel chair tray gear locking device who discloses for CN208463367U with bulletin number, including the tray main part, the tray main part pass through connecting screw and connect the wane, tray main part middle part is connected with the base, be fixed with supporting seat and rack on the base, the cross-under has the gear check lock lever in the tray main part, the gear check lock lever is connected with the gear regulating block, the cross-under of gear regulating block has connecting pin, the last cross-under of connecting pin has little pressure spring, connecting pin is connected with the locking plate that can insert the rack through coupling mechanism. The utility model discloses there is a rebound protection effect after setting up little pressure spring, under the lock-out state, when pulling back the gear check lock lever, the locking plate can not part with the rack at once, needs an exogenic action just can loosen on the wane. The small pressure springs are respectively arranged on two sides of the gear adjusting block.
In the mode, because the two sections of small pressure springs are arranged and connected with the regulating block through the pins, the structure is complex, the requirement on the installation and matching precision of the small pressure springs is high, the assembly is difficult, and the requirements on the elasticity of the two sections of small pressure springs are higher because the elasticity generated by the small pressure springs at the two ends can be mutually offset; in order to limit the position of the small pressure spring, one end of the pin close to the pull rod needs to be flattened, the precision requirement is high, the size is not easy to guarantee, and the processing cost is high.
Disclosure of Invention
In view of the disadvantages of the prior art, a first object of the present invention is to provide a seat tray structure, the structure of the adjusting device of which is simpler.
The technical purpose of the invention is realized by the following technical scheme: a seat tray structure comprises a base, a large disc, a turnover cover and a supporting seat, wherein the large disc is rotatably installed in the middle of the base through a first pin, one end of the turnover cover is rotatably connected to one end of the base through a second pin, the supporting seat is fixed below the large disc, a third pin is fixed at one end, far away from the large disc, of the supporting seat, a movable hole for the third pin to penetrate through is formed in the turnover cover, and the inner wall of the movable hole and the outer wall of the third pin are arranged at intervals; the fixed seat of adjusting in supporting seat bottom, it sets up two at least gear grooves near base one side to adjust the seat, rotate on the base and connect an regulation pole, adjust the pole and connect one can block into or break away from the lockplate in gear groove through coupling mechanism, the rotation in the middle part of lockplate is installed on the base, coupling mechanism includes and connects on the regulating block and the other end is connected telescopic elasticity on the lockplate and holds the power piece with adjusting fixed regulating block, one end, elasticity holds the line of power piece flexible direction along its two extreme points, it is protruding to be fixed with the location on the regulating block, the base is located the regulating block below installation one and hinders the protruding spacing seat of elasticity along with regulating block pivoted in location.
The scheme replaces the original two small pressure springs with the elastic force storage piece, changes the position of the elastic force storage piece, omits the original pull rod and pin structure and has simpler structure; and because the elasticity generated between the two small pressure springs is not offset, the installation precision requirement is reduced.
The adjusting block is further provided with a first connecting hole, the locking plate is provided with a second connecting hole, and hooks formed at two ends of the elastic force storage piece are respectively hooked in the first connecting hole and the second connecting hole.
The installation of the elastic force storage part can be rapidly completed by hooking the elastic force storage part in the first connecting hole and the second connecting hole, and the installation is convenient.
Further, the elastic force storage part is a serpentine spring or a spiral expansion spring which is bent back and forth on the same plane.
The resilient power storage member may take a variety of forms, two specific ones of which are described above.
Further setting, a sleeve pipe is fixed on the base, the locking plate is sleeved on the sleeve pipe and rotates relative to the sleeve pipe, a limiting plate is arranged on the sleeve pipe, a bolt penetrates through the sleeve pipe, the bolt penetrates through a limiting plate connecting nut simultaneously, the lower surface of the limiting plate is abutted to the upper surface of the sleeve pipe, and the lower surface of the limiting plate is arranged in a gap with the upper surface of the locking plate.
The locking plate rotates by taking the sleeve as a center, the limiting plate is used for limiting the locking piece to axially move relative to the sleeve, and the lower surface of the limiting plate and the upper surface of the locking plate are arranged in a clearance mode, so that the clearance is small, and friction is reduced mainly for the locking plate to rotate.
Furthermore, the elastic limiting seat is of an annular structure, and an inverted V-shaped bulge is formed on one side, which is far away from the base, of the elastic limiting seat.
The middle of the annular structure is hollow, so that the elastic limiting seat is convenient to deform.
And a limiting bulge is fixed on the side wall of the adjusting rod, and a limiting groove corresponding to the limiting bulge is formed in the adjusting block.
Through the cooperation of spacing arch and spacing groove for when adjusting the pole and rotate, the regulating block rotates along with the adjusting lever synchronization.
Further, the adjusting seat is formed by combining a plurality of adjusting sheets with the same structure.
Through the mode of monolithic equipment, can control the number of pieces as required, the adaptability is stronger.
Further, the outer side surface of the positioning protrusion is in arc transition.
The outer side surface of the positioning protrusion is set to be in arc transition, and the arc has a guiding effect, so that the positioning protrusion can rotate conveniently.
The second purpose of the invention is to provide an office chair, which comprises the chair tray structure.
In conclusion, the invention has the following beneficial effects: the elastic force storage part is adopted for replacing, the position of the elastic force storage part is changed, the original structure of a pull rod and a pin is omitted, and the structure is simpler; and because the elasticity generated between the two small pressure springs is not offset, the installation precision requirement is reduced; the elastic force storage piece is connected with the locking plate and the adjusting block in a mode of hooking two ends, and the assembly is simple.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic view of the structure of embodiment 1 after hiding the large disc;
FIG. 3 is a schematic structural view of FIG. 2 with the adjustment lever and the limiting plate hidden;
FIG. 4 is a schematic view of the adjustment rod and the adjustment block cooperating with the elastic limit seat;
FIG. 5 is a schematic view of the structure of the adjustment lever;
fig. 6 is a schematic structural view of the adjustment block.
Reference numerals: 11. a base; 12. a cover is turned; 13. a large plate; 14. a sleeve; 21. a first pin; 22. a second pin; 23. a third pin; 3. a supporting seat; 31. a movable hole; 4. an adjusting seat; 41. a gear groove; 5. adjusting a rod; 51. a limiting bulge; 6. an adjusting block; 61. a boss mounting portion; 611. a first connection hole; 62. a limiting groove; 7. a locking plate; 71. a second connection hole; 81. a limiting plate; 82. a bolt; 83. a nut; 91. an elastic force storage member; 92. positioning the projection; 93. an elastic limiting seat; 931. a V-shaped boss.
Detailed Description
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Example 1: a seat tray structure, as shown in figures 1-6, comprises a base 11, a large plate 13 rotatably mounted in the middle of the base 11 through a first pin 21, a flip 12 rotatably connected to one end of the base 11 through a second pin 22 at one end, and a support base 3 fixed below the large plate 13. The supporting seat 3 is an inverted U-shaped structure, the third pin 23 is fixed at one end of the supporting seat 3, which is far away from the large disc 13, the flip 12 is provided with a movable hole 31 for the third pin 23 to pass through, the movable hole 31 is a waist-shaped hole, the minimum inner diameter of the waist-shaped hole is larger than the diameter of the third pin 23, and the inner wall of the movable hole 31 and the outer wall of the third pin 23 form an interval, so that the third pin 23 can rotate and move horizontally or vertically in the movable hole 31.
An adjusting seat 4 is fixed at the bottom of the supporting seat 3, and the adjusting seat 4 is formed by combining a plurality of adjusting sheets with the same structure. The adjusting seat 4 is provided with at least two gear grooves 41 on one side close to the base 11, and a groove on the other side, and four gear grooves 41 are provided in this embodiment, so that four-gear adjustment can be performed. An adjusting rod 5 penetrates into the base 11, and the adjusting rod 5 can rotate relative to the base 11.
The adjusting rod 5 is connected with a locking plate 7 which can be clamped into or separated from the gear groove 41 through a connecting mechanism, the locking plate 7 is approximately L-shaped, two sleeves 14 are fixed on the base 11, the locking plate 7 is sleeved on the sleeve 14 on the same side of the adjusting rod 5 and rotates relative to the sleeve 14, a limiting plate 81 is arranged on the sleeve 14, a bolt 82 penetrates through the sleeve 14, the bolt 82 penetrates through the limiting plate 81 from the bottom of the base 11 upwards to be connected with a nut 83, the lower surface of the limiting plate 81 is abutted against the upper surface of the sleeve 14, and the lower surface of the limiting plate 81 and the upper surface of the locking plate 7 are arranged in a gap which is small and is 0.
The connecting mechanism comprises an adjusting block 6 fixed with the adjusting rod 5 and an elastic force storage piece 91 with one end connected to the adjusting block 6 and the other end connected to the locking plate 7. The adjusting block 6 is a ring structure with a convex mounting part 61, and is matched with the limiting bulge 51 on the adjusting rod 5 to synchronously rotate in the circumferential direction through a limiting groove 62 on the inner wall. The protrusion mounting portion 61 is formed with a first connecting hole 611, and a second connecting hole 71 is formed at a side of the locking plate 7 close to the adjusting block 6, in this embodiment, the elastic energy storage member 91 is a serpentine spring bent back and forth in the same plane, and hooks are formed at two ends thereof to be hooked in the first connecting hole 611 and the second connecting hole 71, respectively. Of course, the elastic energy storage element 91 can also be another elastic element that can be extended or retracted, for example a helical extension spring.
The adjusting block 6 is fixed with three positioning protrusions 92, and the outer side surfaces of two of the positioning protrusions 92 are in arc transition. The base 11 is provided with an elastic limiting seat 93 located below the adjusting block 6 for blocking the positioning protrusion 92 from rotating with the adjusting block 6, and the elastic limiting seat 93 is of an annular structure and forms an inverted V-shaped protrusion 931 on a side away from the base 11. In this embodiment, the elastic limiting seat 93 is made of plastic, and may also be made of elastic steel.
The principle is as follows: during adjustment, the adjusting rod 5 is rotated clockwise until the positioning protrusion 92 abuts against the left side (the side far away from the locking plate 7) of the V-shaped protrusion 931, in the process, the elastic force storage piece 91 compresses the stored force, and then the action force is actively applied to the flip cover 12 (chair back) to separate the locking plate 7 from the gear groove 41, so that gear adjustment can be performed; conversely, the adjustment lever 5 is rotated counterclockwise until the positioning projection 92 abuts against the right side of the V-shaped projection 931, in the process, the elastic force accumulating member 91 stretches and accumulates force, and then, the flip 12 (seat back) is actively applied with force so that the lock plate 7 enters the shift groove 41 to be locked.
Example 2: an office chair comprising embodiment 1.
Claims (9)
1. A seat tray structure comprises a base (11), a large disc (13) rotatably mounted in the middle of the base (11) through a first pin (21), a flip cover (12) with one end rotatably connected to one end of the base (11) through a second pin (22), and a supporting seat (3) fixed below the large disc (13), wherein a third pin (23) is fixed at one end, far away from the large disc (13), of the supporting seat (3), a movable hole (31) for the third pin (23) to pass through is formed in the flip cover (12), and the inner wall of the movable hole (31) and the outer wall of the third pin (23) are arranged at intervals; support seat (3) bottom is fixed one and is adjusted seat (4), adjust seat (4) and set up two at least gear groove (41) near base (11) one side, rotate on base (11) and connect one and adjust pole (5), adjust pole (5) and connect one can block into or break away from lockplate (7) of gear groove (41) through coupling mechanism, the rotation in the middle part of lockplate (7) is installed on base (11), characterized by: coupling mechanism includes and connects on regulating block (6) and the other end is connected on lockplate (7) telescopic elasticity and holds power piece (91) with regulating block (6), the one end of adjusting pole (5) fixed, elasticity holds the line of power piece (91) flexible direction along its two extreme points, be fixed with location arch (92) on regulating block (6), base (11) are located regulating block (6) below installation one and hinder location arch (92) along with regulating block (6) pivoted elasticity spacing seat (93).
2. The seat tray structure of claim 1, wherein: the adjusting block (6) is provided with a first connecting hole (611), the locking plate (7) is provided with a second connecting hole (71), and two ends of the elastic force storage piece (91) form hooks which are respectively hooked in the first connecting hole (611) and the second connecting hole (71).
3. The seat tray structure of claim 1, wherein: the elastic force storage part (91) is a serpentine spring or a spiral expansion spring which is bent back and forth on the same plane.
4. The seat tray structure of claim 1, wherein: the utility model discloses a locking plate, including base (11), lockplate (7) cover relative sleeve pipe (14) rotation on sleeve pipe (14), set up a limiting plate (81) on sleeve pipe (14), pass a bolt (82) in sleeve pipe (14), limiting plate (81) coupling nut (83) are passed simultaneously in bolt (82), the lower surface butt sleeve pipe (14) upper surface of limiting plate (81), and the lower surface of limiting plate (81) sets up with the upper surface clearance of lockplate (7).
5. The seat tray structure of claim 1, wherein: the elastic limiting seat (93) is of an annular structure, and an inverted V-shaped protruding part (931) is formed on the side, away from the base (11).
6. The seat tray structure of claim 1, wherein: a limiting bulge (51) is fixed on the side wall of the adjusting rod (5), and a limiting groove (62) corresponding to the limiting bulge (51) is formed in the adjusting block (6).
7. The seat tray structure of claim 1, wherein: the adjusting seat (4) is formed by combining a plurality of adjusting sheets with the same structure.
8. The seat tray structure of claim 1, wherein: the outer side surface of the positioning bulge (92) is in arc transition.
9. An office chair comprising a seat tray structure as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523918.XA CN111481008A (en) | 2020-06-10 | 2020-06-10 | Seat tray structure and office chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010523918.XA CN111481008A (en) | 2020-06-10 | 2020-06-10 | Seat tray structure and office chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111481008A true CN111481008A (en) | 2020-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010523918.XA Pending CN111481008A (en) | 2020-06-10 | 2020-06-10 | Seat tray structure and office chair |
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| Country | Link |
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| CN (1) | CN111481008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113749449A (en) * | 2021-09-16 | 2021-12-07 | 嘉兴市永泰五金塑料有限责任公司 | Office chair chassis with rotating structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043472A1 (en) * | 2013-09-24 | 2015-04-02 | 浙江永艺家具股份有限公司 | Chassis for swivel chair |
| CN207544715U (en) * | 2017-06-19 | 2018-06-29 | 杭州杨氏实业有限公司 | A kind of Revolving chair chassis |
| CN208463367U (en) * | 2017-11-21 | 2019-02-05 | 杭州中泰实业集团有限公司 | Revolving chair tray gear locking device with rebound protection |
| US20190343287A1 (en) * | 2018-05-11 | 2019-11-14 | Hangzhou Zhongtai Industrial Group Co., Ltd. | Slider-crank mechanism adjustment type swivel chair tray |
| CN212325922U (en) * | 2020-06-10 | 2021-01-12 | 浙江安吉铭成椅业有限公司 | Seat tray structure and office chair |
-
2020
- 2020-06-10 CN CN202010523918.XA patent/CN111481008A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043472A1 (en) * | 2013-09-24 | 2015-04-02 | 浙江永艺家具股份有限公司 | Chassis for swivel chair |
| CN207544715U (en) * | 2017-06-19 | 2018-06-29 | 杭州杨氏实业有限公司 | A kind of Revolving chair chassis |
| CN208463367U (en) * | 2017-11-21 | 2019-02-05 | 杭州中泰实业集团有限公司 | Revolving chair tray gear locking device with rebound protection |
| US20190343287A1 (en) * | 2018-05-11 | 2019-11-14 | Hangzhou Zhongtai Industrial Group Co., Ltd. | Slider-crank mechanism adjustment type swivel chair tray |
| CN212325922U (en) * | 2020-06-10 | 2021-01-12 | 浙江安吉铭成椅业有限公司 | Seat tray structure and office chair |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113749449A (en) * | 2021-09-16 | 2021-12-07 | 嘉兴市永泰五金塑料有限责任公司 | Office chair chassis with rotating structure |
| CN113749449B (en) * | 2021-09-16 | 2024-04-16 | 嘉兴市永泰五金塑料有限责任公司 | Office chair chassis with rotating structure |
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