CN218635649U - Seat sitting depth adjusting mechanism and seat - Google Patents
Seat sitting depth adjusting mechanism and seat Download PDFInfo
- Publication number
- CN218635649U CN218635649U CN202222217326.2U CN202222217326U CN218635649U CN 218635649 U CN218635649 U CN 218635649U CN 202222217326 U CN202222217326 U CN 202222217326U CN 218635649 U CN218635649 U CN 218635649U
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- seat
- connecting piece
- backrest
- adjusting mechanism
- locking
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Abstract
The utility model relates to a seat technical field especially relates to a deep adjustment mechanism of seat and seat. The seat depth adjusting mechanism comprises a locking assembly, a chair frame connecting piece and a backrest connecting piece which is connected with the chair frame connecting piece in a sliding mode in the seat depth direction; the chair frame connecting piece comprises a plurality of locking notches which are arranged along the sitting depth direction; the locking assembly comprises a lock head rotatably connected to the backrest connecting piece and a locking toothed plate elastically connected to the backrest connecting piece; the lock head comprises a convex block part which is used for abutting against the lock tooth plate so as to enable the lock tooth plate to be clamped in the corresponding locking hole. The seat comprises a seat depth adjusting mechanism, a seat frame and a backrest, wherein the backrest is arranged on the seat frame through the seat depth adjusting mechanism. The utility model discloses it is dark that the user of being convenient for adjusts the seat, moreover, is used for adjusting the deep adjustment mechanism's of seat simple structure of sitting, is favorable to reduction in production cost, still is convenient for install and later stage maintenance.
Description
Technical Field
The utility model relates to a seat technical field especially relates to a dark adjustment mechanism of seat and seat.
Background
In modern society, people who need to bend over a table for a long time to do mental work occupy a large proportion, and the prior art has a plurality of seats with waist supporting functions to reduce the waist fatigue degree of long-time sitting people.
Chinese utility model patent with application number CN202220017220.5 discloses a from laminating back-tracking waist back, including support frame, waist backup plate, support member, the articulated accessory that is equipped with in upper end of support member, the one end of going up articulated accessory is fixed in the middle part of support frame, the articulated accessory that is equipped with down of lower extreme of support member, the waist backup plate passes through the bolt fastening in on the articulated accessory down, it has drive assembly to articulate on the support frame, drive assembly's one end pass through the hinge post articulate in on the support member. This scheme the user of being convenient for is in order to adjust the seat depth through the position of adjusting the back for the back can laminate the back that supports the user, but the back coupling mechanism's of this scheme part is numerous, and the articulated relation between each part is loaded down with trivial details complicated, and manufacturing cost is higher and be not convenient for installation and maintenance.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that prior art exists, provided a deep adjustment mechanism of seat and seat, simple structure, the user of being convenient for sits deeply and adjusts, is favorable to reduction in production cost moreover to and be convenient for installation and maintenance.
The utility model discloses a can realize through following technical scheme:
a seat depth adjusting mechanism comprises a locking assembly, a seat frame connecting piece and a backrest connecting piece which is connected with the seat frame connecting piece in a sliding mode in the seat depth direction; the chair frame connecting piece comprises a plurality of locking notches which are arranged along the sitting depth direction; the locking assembly comprises a lock head which is rotatably connected to the backrest connecting piece and a lock toothed plate which is elastically connected to the backrest connecting piece; the lock head comprises a convex block part which is used for abutting against the lock tooth plate so as to enable the lock tooth plate to be clamped in the corresponding locking hole.
The chair frame connecting piece is connected with the chair frame, the back connecting piece is connected with the back, the pinion rack can be connected in the back connecting piece through prior art's spring part elasticity. Install the back in the chair frame back through this seat deep adjustment mechanism, the user can rotate the tapered end, make lug portion break away from the pinion rack, the pinion rack breaks away from the fore shaft at place under the effect of spring part, then, the user can remove the relative chair frame connecting piece of back connecting piece to suitable position according to self demand, the completion removes the back, rotate the tapered end, make the lug portion of tapered end support and press the pinion rack, the pinion rack closes in the fore shaft that corresponds, just can be in required seat under dark with back connecting piece and the relative locking of chair frame connecting piece. The scheme is beneficial to the user to conveniently and quickly complete the sitting depth adjustment; and the seat depth adjusting mechanism of the seat is simple in structure, beneficial to reducing the production cost and convenient to install and maintain in the later period.
Preferably, the backrest connecting piece is sleeved outside the chair frame connecting piece, and the backrest connecting piece is provided with a through groove leading to the locking notch; the locking assembly is disposed at the through slot.
This preferred back connecting piece cover is located the outside of chair frame connecting piece is favorable to improving the connection stability of back connecting piece and chair frame connecting piece, still is favorable to reducing the packing volume of the dark adjustment mechanism of seat, and then sparingly packs, stores in a warehouse and the cost of transportation. The backrest connecting piece is provided with a through groove communicated with the locking notch; the locking assembly is arranged at the through groove, so that the problem that the locking tooth plate of the locking assembly is difficult to clamp in the locking opening due to the fact that the backrest connecting piece is sleeved on the outer side of the chair frame connecting piece is solved.
Preferably, the locker plate includes a locking block portion for locking the locking head when the seat frame link and the back link are relatively locked.
Therefore, when the lock head rotates in place to fix the chair frame connecting piece and the backrest connecting piece relatively, the lock head can be buckled and fixed by the buckling block part, and the stability of the relative fixation of the chair frame connecting piece and the backrest connecting piece is improved.
Preferably, the lock cylinder further comprises a rotating part and a handle part, the lock cylinder is rotatably connected to the backrest connecting part through the rotating part, and the handle part and the projection part are respectively connected to the rotating part.
Preferably, the handle portion is adapted to be readily grasped by a user to turn the locking head.
Preferably, the surface of the backrest connecting piece is provided with a protective rubber layer.
The backrest connecting piece is sleeved on the outer side of the chair frame connecting piece, and the protective rubber layer is preferably arranged on the sleeved surface of the backrest connecting piece, so that abrasion at the sleeved position when the backrest connecting piece and the chair frame connecting piece slide relatively is reduced, the rubber layer has elasticity, and shock absorption can be realized in the relative sliding process of the backrest connecting piece and the chair frame connecting piece.
Preferably, the chair further comprises a spring, and the chair frame connecting piece and the backrest connecting piece are respectively connected with two ends of the spring.
Therefore, when the user leans against the backrest, the backrest connecting piece and the chair frame connecting piece are not locked, the backrest can follow the back of the user attached to the chair under the action of the preferable spring, and the chair with the chair seat depth adjusting mechanism has a function of following the back.
Preferably, the chair frame connecting piece comprises a limiting groove, and the backrest connecting piece is connected with a limiting rod; the backrest connecting piece slides relative to the chair frame connecting piece in the sitting depth direction to drive the limiting rod to slide in the limiting groove, and the two inner walls of the limiting groove in the sitting depth direction are used for limiting the sliding range of the limiting rod and further limiting the sliding range of the backrest connecting piece relative to the chair frame connecting piece.
This preferred two inner walls of spacing groove on the seat depth direction can prescribe a limit to the sliding range of gag lever post, and then prescribe a limit to the gliding sliding range of back connecting piece relative to the chair frame connecting piece, is favorable to avoiding the back connecting piece to excessively slide relative to the chair frame connecting piece and lead to the spring by the pressure loss or draw the damage.
Preferably, the limit rod is screwed to the backrest connecting member.
The limiting rod can collide with the two inner walls of the limiting groove in the sitting depth direction frequently in the using process, the preferred limiting rod is in threaded connection with the backrest connecting piece, and replacement is convenient after the limiting rod is damaged due to collision.
The utility model also provides a seat which is provided with the seat depth adjusting mechanism; the seat further comprises a seat frame and a backrest, and the backrest is mounted on the seat frame through the seat depth adjusting mechanism.
The embodiment of the utility model has the following beneficial effect:
1. the chair frame connecting piece is connected with the backrest connecting piece in a sliding way in the sitting depth direction and comprises a plurality of locking notches which are arranged in the sitting depth direction; the locking assembly comprises a lock head rotationally connected with the backrest connecting piece and a lock toothed plate elastically connected with the backrest connecting piece; the lock head comprises a convex block part which is used for abutting against the lock toothed plate so as to enable the lock toothed plate to be clamped in the corresponding lock opening. From this, the user is through rotating the tapered end for lug portion supports to press in the pinion rack, and the pinion rack and then block in the fore shaft that corresponds, just can lock back connecting piece and chair frame connecting piece relatively, and perhaps, the user is through rotating the tapered end, makes lug portion break away from the pinion rack, and the pinion rack reconversion and break away from the fore shaft at place just can relieve the relative locking of back connecting piece and chair frame connecting piece. From this, this seat sits dark adjustment mechanism convenient operation and simple structure, is favorable to reduction in production cost, still is convenient for install and later stage maintenance.
2. The backrest connecting piece is sleeved on the outer side of the chair frame connecting piece, so that the connection stability of the backrest connecting piece and the chair frame connecting piece is improved, the packaging volume of the seat depth adjusting mechanism is reduced, and the packaging, storage and transportation cost is saved. Furthermore, the surface of the backrest connecting piece is provided with a protective rubber layer, so that abrasion at the sleeved position when the backrest connecting piece and the chair frame connecting piece slide relatively is reduced, the rubber layer has elasticity, and the shock absorption can be realized in the process of relative sliding of the backrest connecting piece and the chair frame connecting piece.
3. The seat depth adjusting mechanism further comprises a spring, and the chair frame connecting piece and the backrest connecting piece are respectively connected with two ends of the spring. Therefore, when a user leans against the backrest, the relative locking of the chair frame connecting piece and the backrest connecting piece can be released, the backrest can follow the back of the user attached to the chair under the action of the spring, and the chair with the chair sitting depth adjusting mechanism has a back following function.
4. The chair frame connecting piece comprises a limiting groove, and the backrest connecting piece is connected with a limiting rod; the limiting groove can be limited in two inner walls in the sitting depth direction, the sliding range of the limiting rod is limited, the backrest connecting piece is relative, the sliding range of the chair frame connecting piece is limited, and the situation that the spring is damaged by pressure or pulling due to excessive sliding of the backrest connecting piece is avoided.
Drawings
FIG. 1 is a side elevational view, partially in section, of a seat having a seat depth adjustment mechanism mounted thereto;
fig. 2 is an enlarged schematic view of the area a in fig. 1.
In the figure: the chair comprises a chair frame connecting piece 1, a locking notch 11, a limiting groove 12, a backrest connecting piece 2, a through groove 21, a locking component 3, a locking head 31, a convex block 311 part, a rotating part 312, a handle 313 part, a tooth locking plate 32, a buckling block 321 part, a spring 4, a chair frame 5, a backrest 6 and a limiting rod 7.
Detailed Description
The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.
A seat depth adjusting mechanism is shown in figures 1 and 2 and comprises a locking assembly 3, a chair frame connecting piece 1 used for being installed on a chair frame 5 and a backrest connecting piece 2 used for being installed on a backrest 6, wherein the chair frame connecting piece 1 is connected with the backrest connecting piece 2 in a sliding mode in the depth direction.
The backrest connecting piece 2 is sleeved on the outer side of the chair frame connecting piece 1, and a protective rubber layer is further arranged on the sleeved surface of the backrest connecting piece 2.
The chair frame connecting piece 1 comprises a plurality of locking notches 11 which are arranged along the sitting depth direction, and the backrest connecting piece 2 is provided with a through groove 21 leading to the locking notches 11. The locking assembly 3 is installed at the through groove 21 of the backrest connector 2, the locking assembly 3 comprises a locking toothed plate 32 elastically connected to the backrest connector 2 through a spring element, and a locking head 31 rotatably connected to the backrest connector 2, the locking head 31 comprises a protruding block portion 311, a rotating portion 312 and a handle portion 313, the locking head 31 is rotatably connected to the backrest connector 2 through the rotating portion 312, and the handle portion 313 and the protruding block portion 311 are respectively connected to the rotating portion 312. The protruding block portion 311 is used for pressing the lock tooth plate 32, so as to press the lock tooth plate 32 to be clamped in the corresponding locking opening 11, and further lock the chair frame connecting piece 1 and the backrest connecting piece 2 relatively.
The latch plate 32 includes a locking block portion 321 for locking the locking head 31 when the frame link 1 and the back link 2 are relatively locked.
When the user needs to perform the sitting depth adjustment, the following steps can be performed: firstly, rotating the lock head 31 to make the convex block part 311 separate from the buckling block part 321, releasing the support of the lock tooth plate 32 elastically connected to the backrest connecting piece 2, and moving the lock tooth plate 32 back to separate from the lock notch 11; secondly, relatively moving the chair frame connecting piece 1 and the backrest connecting piece 2 to adjust the required seating depth; thirdly, the lock head 31 is rotated to the bump portion 311 to be locked on the locking block portion 321 again, and at this time, the lock tooth plate 32 is pressed and clamped into the corresponding locking notch 11 again. Therefore, the sitting depth adjustment can be completed quickly.
Chair frame connecting piece 1 with back connecting piece 2 still passes through spring 4 and connects, specifically, chair frame connecting piece 1 with back connecting piece 2 connect respectively in the both ends of spring 4. Therefore, when a user leans against the backrest 6, the backrest 6 can follow the back of the user under the action of the spring 4 without locking the chair frame connecting piece 1 and the backrest connecting piece 2, and the seat provided with the backrest 6 through the seat depth adjusting mechanism can have a function of following the back.
Further, the chair frame connecting piece 1 comprises a limiting groove 12, and the backrest connecting piece 2 is connected with a limiting rod 7; the backrest connecting piece 2 slides relative to the chair frame connecting piece 1 in the sitting depth direction to drive the limiting rod 7 to slide in the limiting groove 12, and the two inner walls of the limiting groove 12 in the sitting depth direction are used for limiting the sliding range of the limiting rod 7, so that the sliding range of the backrest connecting piece 2 relative to the chair frame connecting piece 1 is limited. This is advantageous in that excessive slippage of the backrest link 2 relative to the frame link 1, which could result in compression or tension loss of the spring 4, is avoided.
Further, when the seat depth is adjusted, the limiting rod 7 may collide with the inner wall of the limiting groove 12, so that a new limiting rod 7 may be replaced after the limiting rod 7 is damaged by multiple collisions, and preferably, the limiting rod 7 is screwed to the backrest connecting member 2.
The utility model also provides a seat which is provided with the seat depth adjusting mechanism; the seat further comprises a seat frame 5 and a backrest 6, wherein the backrest 6 is arranged on the seat frame 5 through the seat depth adjusting mechanism.
The embodiments of the invention described above and shown in the drawings are given by way of example only and are not intended to limit the invention. Those skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope of the present disclosure, and such modifications or substitutions are intended to be included within the scope of the present disclosure. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The purpose of the utility model is completely and effectively realized. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.
Claims (9)
1. A seat depth adjusting mechanism is characterized by comprising a locking component (3), a chair frame connecting piece (1) and a backrest connecting piece (2) which is connected with the chair frame connecting piece (1) in a sliding manner in the depth direction; the chair frame connecting piece (1) comprises a plurality of locking notches (11) which are arranged along the sitting depth direction; the locking assembly (3) comprises a lock head (31) rotatably connected to the backrest connecting piece (2) and a lock toothed plate (32) elastically connected to the backrest connecting piece (2); the lock head (31) comprises a convex block part (311) which is used for pressing the lock tooth plate (32) so as to enable the lock tooth plate (32) to be clamped with the corresponding lock opening (11).
2. The seat depth adjusting mechanism of claim 1, wherein the backrest connector (2) is sleeved outside the seat frame connector (1), and the backrest connector (2) is provided with a through slot (21) leading to the locking notch (11); the locking assembly (3) is arranged at the through groove (21).
3. The seat depth adjustment mechanism according to claim 1, wherein the tooth lock plate (32) comprises a block locking portion (321) for locking the lock head (31) when the frame link (1) and the backrest link (2) are locked relatively.
4. The seat depth adjusting mechanism of claim 3, wherein the lock head (31) further comprises a rotating portion (312) and a handle portion (313), the lock head (31) is rotatably connected to the backrest connector (2) through the rotating portion (312), and the handle portion (313) and the projection portion (311) are respectively connected to the rotating portion (312).
5. The seat depth adjusting mechanism as claimed in claim 2, wherein the covering surface of the backrest connecting member (2) is provided with a rubber layer.
6. The seat depth adjusting mechanism of claim 2, further comprising a spring (4), wherein the frame connecting member (1) and the backrest connecting member (2) are connected to two ends of the spring (4), respectively.
7. The seat depth adjusting mechanism according to claim 6, wherein the frame connecting member (1) comprises a limiting groove (12), and the backrest connecting member (2) is connected with a limiting rod (7); backrest connecting piece (2) are relative in the direction of sitting the depth chair frame connecting piece (1) slides to drive gag lever post (7) are in slide in spacing groove (12), spacing groove (12) are used for injecing at two ascending inner walls of sitting depth the sliding range of gag lever post (7), and then inject backrest connecting piece (2) are relative chair frame connecting piece (1) gliding sliding range.
8. The seat depth adjusting mechanism according to claim 7, wherein the limit rod (7) is screwed to the backrest connecting member (2).
9. A seat having the seat depth adjusting mechanism of any one of claims 1 to 8; the seat further comprises a seat frame (5) and a backrest (6), wherein the backrest (6) is mounted on the seat frame (5) through the seat depth adjusting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222217326.2U CN218635649U (en) | 2022-08-23 | 2022-08-23 | Seat sitting depth adjusting mechanism and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222217326.2U CN218635649U (en) | 2022-08-23 | 2022-08-23 | Seat sitting depth adjusting mechanism and seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218635649U true CN218635649U (en) | 2023-03-17 |
Family
ID=85490261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222217326.2U Active CN218635649U (en) | 2022-08-23 | 2022-08-23 | Seat sitting depth adjusting mechanism and seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218635649U (en) |
-
2022
- 2022-08-23 CN CN202222217326.2U patent/CN218635649U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |