CN217792147U - Office chair backrest adjusting mechanism - Google Patents
Office chair backrest adjusting mechanism Download PDFInfo
- Publication number
- CN217792147U CN217792147U CN202220929543.1U CN202220929543U CN217792147U CN 217792147 U CN217792147 U CN 217792147U CN 202220929543 U CN202220929543 U CN 202220929543U CN 217792147 U CN217792147 U CN 217792147U
- Authority
- CN
- China
- Prior art keywords
- plate
- fixedly connected
- mounting panel
- locating plate
- 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.)
- Active
Links
Images
Abstract
The utility model discloses an office chair backrest adjustment mechanism, concretely relates to office chair technical field, comprising a base plate, bottom plate top fixedly connected with telescopic cylinder, telescopic cylinder top fixedly connected with mounting panel, mounting panel one side fixedly connected with locating plate, mounting panel opposite side fixedly connected with fixed plate, the locating plate deviates from mounting panel one side fixedly connected with closed shell, the inside rotation axis that is provided with of closed shell, rotation axis one end deviates from mounting panel one side fixed connection with the locating plate, rotation axis surface rotates and is connected with the rotor plate, the closed shell top has been seted up and has been dodged the hole. The utility model discloses a poker rod can drive the drive plate and rotate clockwise around the axis of rotation axis, and when the drive plate rotated, the transmission post drive was accepted the board and is wound the axis anticlockwise rotation of second support column, and the poker rod of this design is installed in the mounting panel side, and the user need not to bow and can realize the regulation to the back angle, has made things convenient for user's operation.
Description
Technical Field
The utility model relates to an office chair technical field specifically is an office chair back adjustment mechanism.
Background
The office chair refers to various chairs which are equipped for convenient work in daily work and social activities, the narrowly defined office chair refers to a backrest chair on which a person sits when performing desktop work in a sitting posture, and the broadly defined office chair refers to all chairs used in offices, including office chairs, middle class chairs, guest-meeting chairs, employee chairs, conference chairs, visitor chairs, training chairs and the like.
The following problems exist in the prior art:
under the prior art, the backrest of most office chairs is rotatably installed at the rear end of a seat cushion, and an adjusting device is installed at the position where the backrest is connected with the seat cushion to adjust the inclination angle of the backrest.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an office chair back adjustment mechanism to solve the problem that proposes among the above-mentioned background art.
In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an office chair backrest adjusting mechanism, includes the bottom plate, bottom plate top fixedly connected with telescopic cylinder, telescopic cylinder top fixedly connected with mounting panel, mounting panel one side fixedly connected with locating plate, mounting panel opposite side fixedly connected with fixed plate, the locating plate deviates from mounting panel one side fixedly connected with closed shell, the inside rotation axis that is provided with of closed shell, rotation axis one end deviates from mounting panel one side fixed connection with the locating plate, rotation axis surface rotates and is connected with the rotor plate, the closed shell top has been seted up and has been dodged the hole, the rotor plate passes and dodges the hole and outwards extends, rotation axis surface fixedly connected with backup pad, be provided with first support column and second support column between backup pad and the locating plate, second support column surface rotates and is connected with accepts the board, rotation axis surface rotates and is connected with the drive plate.
Preferably, a fixing column and a guide column are fixedly connected to one side, away from the positioning plate, of the rotating plate, a coil spring is sleeved on the surface of the rotating shaft, one end of the coil spring is fixedly connected with the rotating shaft, the other end of the coil spring is fixedly connected with the fixing column, a positioning hole is formed in the supporting plate, and the hole wall of the positioning hole is in sliding connection with the surface of the guide column.
Preferably, one end of the first support column is fixedly connected with the support plate, the other end of the first support column is fixedly connected with the positioning plate, one end of the second support column is fixedly connected with the support plate, the other end of the second support column is fixedly connected with the positioning plate, the bearing plate is fixedly connected with a second ratchet wheel, the rotating plate is fixedly connected with a first ratchet wheel, and the first ratchet wheel is matched with the second ratchet wheel.
Preferably, the locating plate has seted up built-in groove towards drive plate one side, the locating plate is towards drive plate one side fixedly connected with spliced pole, the drive plate is towards locating plate one side fixedly connected with guide post, guide post surface and built-in groove cell wall sliding connection, set up the hole of wearing to establish on the drive plate, it deviates from locating plate one side fixedly connected with transmission post to accept the board, transmission post surface and wear to establish hole pore wall sliding connection, be provided with the spring between spliced pole and the drive plate, spring one end and spliced pole fixed connection, the spring other end and drive plate fixed connection, the drive plate deviates from locating plate one side fixedly connected with poker rod, the closed shell deviates from locating plate one side and has seted up the slip hole, poker rod surface and slip hole pore wall sliding connection.
Preferably, one side of the fixing plate, which is away from the mounting plate, is fixedly connected with an extension shell and an extension shaft, the surface of the extension shaft is rotatably connected with a rotating plate, a group of connecting rods is fixedly connected between the rotating plate and the rotating plate, the surface of each connecting rod is fixedly connected with a backrest, and the bottom of the bottom plate is provided with a group of universal wheels.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model discloses a poker rod can drive the drive plate and rotate clockwise around the axis of rotation axis, when the drive plate pivoted, the transmission post drive is accepted the board and is wound the axis anticlockwise rotation of second support column, thereby make the second ratchet break away from with the meshing of first ratchet, when the rotor plate adjusts to suitable angle, the user loosens the poker rod, the elasticity of spring orders about drive plate anticlockwise rotation and gets back to initial position, when the drive plate motion, it rotates and gets back to initial position around the clockwise synchronization of axis of second support column to accept the board, thereby make second ratchet and first ratchet meshing, the second ratchet is mutually supported the rigidity with the rotor plate with first ratchet, the poker rod of this design is installed in the mounting panel side, the user need not to bow and can realize the regulation to the back angle, user's operation has been made things convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 is a schematic view of a part of the structure of the present invention.
Fig. 4 is a schematic view of a part of the structure of the present invention.
Fig. 5 is a schematic view of the rotating plate, the driving plate, the supporting plate and the receiving plate of the present invention.
Fig. 6 is a schematic view of the rotating plate and the receiving plate of the present invention.
Fig. 7 is a schematic view of the driving plate and the supporting plate of the present invention.
In the figure: 1. a base plate; 11. a universal wheel; 12. a telescopic cylinder; 13. mounting a plate; 2. positioning a plate; 21. A containment vessel; 22. a built-in groove; 23. connecting columns; 24. a spring; 3. a fixing plate; 31. an extension case; 4. an extension shaft; 41. a rotating plate; 5. a rotating shaft; 51. a rotating plate; 511. fixing a column; 512. a guide post; 513. a first ratchet wheel; 52. a coil spring; 6. a connecting rod; 61. a backrest; 7. a drive plate; 71. a poke rod; 72. perforating holes; 73. a guide post; 8. a support plate; 81. a first support column; 82. a second support column; 83. positioning holes; 9. a bearing plate; 91. a transfer column; 92. a second ratchet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment is as follows: as shown in fig. 1-7, the utility model provides an office chair backrest adjusting mechanism, comprising a base plate 1, bottom plate 1 top fixedly connected with telescopic cylinder 12, telescopic cylinder 12 top fixedly connected with mounting panel 13, mounting panel 13 one side fixedly connected with locating plate 2, mounting panel 13 opposite side fixedly connected with fixed plate 3, locating plate 2 deviates from mounting panel 13 one side fixedly connected with closed shell 21, closed shell 21 is inside to be provided with rotation axis 5, rotation axis 5 one end deviates from mounting panel 13 one side fixed connection with locating plate 2, rotation axis 5 surface rotation is connected with rotor plate 51, closed shell 21 top has been seted up and has been dodged the hole, rotor plate 51 passes and dodges the hole and outwards extends, rotation axis 5 fixed surface is connected with backup pad 8, be provided with first support column 81 and second support column 82 between backup pad 8 and the locating plate 2, second support column 82 surface rotation is connected with accepts board 9, rotation of rotation axis 5 surface is connected with drive plate 7.
Further, the rotating plate 51 deviates from one side of the positioning plate 2 and is fixedly connected with a fixing column 511 and a guiding column 512, a coil spring 52 is sleeved on the surface of the rotating shaft 5, one end of the coil spring 52 is fixedly connected with the rotating shaft 5, the other end of the coil spring 52 is fixedly connected with the fixing column 511, a positioning hole 83 is formed in the supporting plate 8, the hole wall of the positioning hole 83 is in sliding connection with the surface of the guiding column 512, one end of a first supporting column 81 is fixedly connected with the supporting plate 8, the other end of the first supporting column 81 is fixedly connected with the positioning plate 2, one end of a second supporting column 82 is fixedly connected with the supporting plate 8, the other end of the second supporting column 82 is fixedly connected with the positioning plate 2, a second ratchet 92 is fixedly connected with the bearing plate 9, a first ratchet 513 is fixedly connected with the rotating plate 51, and the first ratchet 513 is matched with the second ratchet 92.
Further, locating plate 2 has seted up built-in groove 22 towards drive plate 7 one side, locating plate 2 has seted up spliced pole 23 towards drive plate 7 one side fixedly connected with of drive plate 7, drive plate 7 towards locating plate 2 one side fixedly connected with guide post 73, guide post 73 surface and built-in groove 22 cell wall sliding connection, wear to establish hole 72 has been seted up on the drive plate 7, accept board 9 and deviate from locating plate 2 one side fixedly connected with transmission post 91, transmission post 91 surface and wear to establish hole 72 pore wall sliding connection, be provided with spring 24 between spliced pole 23 and the drive plate 7, spring 24 one end and spliced pole 23 fixed connection, the spring 24 other end and drive plate 7 fixed connection, drive plate 7 deviates from locating plate 2 one side fixedly connected with poking rod 71, closed shell 21 deviates from locating plate 2 one side and has seted up the slip hole, poking rod 71 surface and slip hole sliding connection.
Further, fixed plate 3 deviates from mounting panel 13 one side fixedly connected with and extends shell 31 and extension axle 4, and extension axle 4 rotates in surface to be connected with rotor plate 41, and a set of connecting rod 6 of fixedly connected with between rotor plate 41 and the rotor plate 51, connecting rod 6 fixed surface are connected with back 61, and bottom plate 1 bottom is provided with a set of universal wheel 11.
The working principle is as follows: in actual operation, a user sits on the top of the mounting plate 13, holds the dial lever 71 and drives the driving plate 7 to rotate clockwise around the axis of the rotating shaft 5 through the dial lever 71, while the driving plate 7 rotates, the transmission post 91 slides anticlockwise and synchronously along the hole wall of the through hole 72, the transmission post 91 moves and drives the receiving plate 9 to rotate anticlockwise and synchronously around the axis of the second supporting post 82, at this time, the second ratchet 92 is disengaged from the first ratchet 513, the elastic force of the coil spring 52 drives the rotating plate 51 to rotate anticlockwise and synchronously around the axis of the rotating shaft 5, when the user leans back, the thrust of the back of the user drives the rotating plate 51 to rotate clockwise around the axis of the rotating shaft 5, when the rotating plate 51 is adjusted to a proper angle, the user releases the dial lever 71, the elastic force of the spring 24 drives the driving plate 7 to rotate anticlockwise around the axis of the rotating shaft 5 and return to the initial position, while the driving plate 7 moves, the receiving plate 9 rotates clockwise and synchronously around the axis of the second supporting post 82 and returns to the initial position, at this time, the second ratchet 92 is engaged with the first ratchet 513, and the second ratchet 92 is engaged with the first ratchet 513 to fix the position of the rotating plate 51.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. The utility model provides an office chair back adjustment mechanism, includes bottom plate (1), its characterized in that: bottom plate (1) top fixedly connected with telescopic cylinder (12), telescopic cylinder (12) top fixedly connected with mounting panel (13), mounting panel (13) one side fixedly connected with locating plate (2), mounting panel (13) opposite side fixedly connected with fixed plate (3), locating plate (2) deviate from mounting panel (13) one side fixedly connected with closed shell (21), closed shell (21) inside is provided with rotation axis (5), rotation axis (5) one end deviates from mounting panel (13) one side fixed connection with locating plate (2), rotation axis (5) surface rotation is connected with rotor plate (51), the hole of dodging has been seted up at closed shell (21) top, rotor plate (51) pass and dodge the hole and outwards extend, rotation axis (5) surface fixed connection has backup pad (8), be provided with first support column (81) and second support column (82) between backup pad (8) and locating plate (2), second support column (82) surface rotation is connected with accepts board (9), rotation axis (5) surface rotation is connected with drive plate (7).
2. An office chair back adjustment mechanism according to claim 1, wherein: the rotating plate (51) is fixedly connected with a fixing column (511) and a guide column (512) on one side departing from the positioning plate (2), a coil spring (52) is sleeved on the surface of the rotating shaft (5), one end of the coil spring (52) is fixedly connected with the rotating shaft (5), the other end of the coil spring (52) is fixedly connected with the fixing column (511), a positioning hole (83) is formed in the supporting plate (8), and the hole wall of the positioning hole (83) is in sliding connection with the surface of the guide column (512).
3. An office chair back adjustment mechanism according to claim 1, wherein: first support column (81) one end and backup pad (8) fixed connection, first support column (81) other end and locating plate (2) fixed connection, second support column (82) one end and backup pad (8) fixed connection, second support column (82) other end and locating plate (2) fixed connection, fixedly connected with second ratchet (92) on accepting board (9), first ratchet (513) of fixedly connected with on rotor plate (51), first ratchet (513) and second ratchet (92) phase-match.
4. An office chair back adjustment mechanism according to claim 1, wherein: locating plate (2) have seted up built-in groove (22) towards drive plate (7) one side, locating plate (2) have seted up through-hole (72) towards drive plate (7) one side fixedly connected with spliced pole (23), drive plate (7) have guide post (73) towards locating plate (2) one side fixedly connected with, guide post (73) surface and built-in groove (22) cell wall sliding connection, wear-out hole (72) have been seted up on drive plate (7), receiving board (9) deviate from locating plate (2) one side fixedly connected with transmission post (91), transmission post (91) surface and wear-out hole (72) pore wall sliding connection, be provided with spring (24) between spliced pole (23) and drive plate (7), spring (24) one end and spliced pole (23) fixed connection, the spring (24) other end and drive plate (7) fixed connection, drive plate (7) deviate from locating plate (2) one side fixedly connected with poker rod (71), closed shell (21) deviate from locating plate (2) one side and seted up the sliding hole, poker rod (71) surface and poker hole sliding connection.
5. An office chair back adjustment mechanism according to claim 1, wherein: fixed plate (3) deviate from mounting panel (13) one side fixedly connected with and extend shell (31) and extend axle (4), it is connected with rotor plate (41) to extend axle (4) surface rotation, a set of connecting rod (6) of fixedly connected with between rotor plate (51) and rotor plate (41), connecting rod (6) fixed surface is connected with back (61), bottom plate (1) bottom is provided with a set of universal wheel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220929543.1U CN217792147U (en) | 2022-04-21 | 2022-04-21 | Office chair backrest adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220929543.1U CN217792147U (en) | 2022-04-21 | 2022-04-21 | Office chair backrest adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217792147U true CN217792147U (en) | 2022-11-15 |
Family
ID=83982361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220929543.1U Active CN217792147U (en) | 2022-04-21 | 2022-04-21 | Office chair backrest adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217792147U (en) |
-
2022
- 2022-04-21 CN CN202220929543.1U patent/CN217792147U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1423986A (en) | Chairs | |
| CN112586887B (en) | Desk and chair with storage function | |
| CN217792147U (en) | Office chair backrest adjusting mechanism | |
| CN213820298U (en) | Novel portable study record frame | |
| CN215271631U (en) | Zero-back-rubbing-feeling movable sofa backrest and sofa | |
| CN220529613U (en) | Chassis for office chair | |
| CN211344678U (en) | Height adjuster for notebook computer | |
| CN216438859U (en) | Self-loading seat chassis and seat | |
| CN210055304U (en) | Waist is by with lift adjustment function around having | |
| CN218074202U (en) | Adjusting mechanism | |
| CN217987000U (en) | Multifunctional school chair | |
| CN219147151U (en) | Massaging chair | |
| CN218791342U (en) | Liftable auditorium chair | |
| CN218832228U (en) | Multifunctional office desk | |
| CN215686094U (en) | Personnel office chair for bank counter | |
| CN208740409U (en) | One kind is for adjusting the movable regulating device of sofa | |
| CN219629136U (en) | Rattan chair capable of adjusting lying posture | |
| CN218044422U (en) | Mechanical single chair waist support adjusting structure | |
| CN211269531U (en) | Seat surface adjusting chair | |
| CN219720195U (en) | Aluminum alloy seat with lumbar support | |
| CN219895147U (en) | Supporting angle adjusting structure of office chair backrest | |
| CN219962247U (en) | Ergonomic desk | |
| CN216393576U (en) | Wooden frame sofa with adjusting headrest function | |
| CN210780997U (en) | 5G self-service terminal camera rotating device | |
| CN213930279U (en) | Support arrangement convenient to computer machine case supports |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |