CN223232406U

CN223232406U - Multifunctional self-adaptive lumbar support for seat

Info

Publication number: CN223232406U
Application number: CN202422298958.5U
Authority: CN
Inventors: 黄伟
Original assignee: Jiaxing Nuoyu Chair Technology Co ltd
Current assignee: Jiaxing Nuoyu Chair Technology Co ltd
Priority date: 2024-09-20
Filing date: 2024-09-20
Publication date: 2025-08-19
Anticipated expiration: 2034-09-20

Abstract

The present invention relates to a multifunctional adaptive lumbar support for a seat, comprising a base for connecting to the seat and a lumbar support for supporting the seat back. The base is provided with a connecting groove, the connecting groove is provided with a slidable connecting seat, one end of the connecting seat extends outside the connecting groove as a coupling end, the lumbar support is provided with a coupling portion on the side facing the base, the coupling portion is coupled to the coupling end and can form a sliding fit between the two to achieve vertical adjustment of the lumbar support, the connecting groove is provided with a support spring, one end of the support spring is fixed to the bottom of the connecting groove, and the other end is fixed to the connecting seat, the support spring provides support force to the lumbar support through the connecting seat. The present invention has the following advantages and effects: it can provide more sufficient support for the lumbar and improve user comfort.

Description

Multifunctional self-adaptive lumbar support for seat

Technical Field

The utility model relates to the technical field of seats, in particular to a multifunctional self-adaptive lumbar support for a seat.

Background

The chair is a piece of seating furniture capable of leaning, and the chair back of part of the chair is laid with a net surface so as to have better air permeability.

For example, the present application discloses a multifunctional swivel chair based on ergonomics in chinese patent publication No. CN211533487U, which comprises supporting legs, a pneumatic telescopic rod, a chassis support, a seat plate, a seat surface, a back support and a chair back, wherein the lower end of the pneumatic telescopic rod is fixed with the supporting legs, the lower end surface of the chassis support is fixed with the upper end of the pneumatic telescopic rod, the seat surface is fixed on the seat plate, the chair back is fixed with the front side of the upper end of the back support, a sliding plate is arranged above the chassis support, the front end of the sliding plate is connected with the front end of the chassis support through a rotating frame, the upper end of the rotating frame is hinged with the front end of the sliding plate, the lower end of the rotating frame is hinged with the front end of the chassis support, the rear end of the sliding plate is hinged with the upper edge of the lower end of the back support, an elastic traction mechanism for driving the sliding plate to move forward and reset is arranged between the sliding plate and the chassis support, and the seat plate is fixed on the sliding plate.

In the above technical scheme, the waist of the user is supported mainly through a single chair back, and the problem that the whole application comfort is affected due to insufficient support of the waist easily occurs in the mode of supporting the waist of the user through the single chair back in the actual use process.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a multifunctional self-adaptive lumbar support for a seat, which can fully support the waist and improve the comfort of use.

The multifunctional self-adaptive lumbar support for the seat comprises a base for connecting the seat and a lumbar support for supporting the seat back, wherein a connecting groove is formed in the base, a connecting seat capable of sliding is arranged in the connecting groove, one end of the connecting seat extends out of the connecting groove to serve as a coupling end, a coupling part is arranged on one side, facing the base, of the lumbar support, the coupling part is coupled with the coupling end and can form sliding fit between the coupling end and the coupling end, so that the adjustment of the lumbar support in the vertical direction is realized, a supporting spring is arranged in the connecting groove, one end of the supporting spring is fixed at the bottom of the connecting groove, the other end of the supporting spring is fixed on the connecting seat, and the supporting spring provides supporting force for the lumbar support through the connecting seat.

The utility model is further provided with a waist support locking device between the coupling end and the coupling part, wherein the waist support locking device is used for locking the waist support so as to avoid shaking of the waist support.

The waist support locking device further comprises a plurality of locking grooves which are arranged on one side, away from the base, of the coupling part, wherein the plurality of locking grooves are arranged at intervals, the coupling end is provided with a mounting groove which can be opposite to the locking grooves, a locking spring is fixed in the mounting groove, one end, away from the mounting groove, of the locking spring is fixed with a locking steel ball, and the locking spring is used for pushing the locking steel ball into the locking groove so as to form limit fit between the locking groove and the mounting groove.

The utility model is further provided with a connecting seat locking device between the base and the connecting seat, wherein the connecting seat locking device is used for locking the connecting seat so that the supporting spring provides constant supporting force for the waist support through the connecting seat.

The connecting seat locking device is further arranged in a way that the connecting seat locking device comprises a locking block capable of moving along the vertical direction, a plurality of locking grooves are formed in one side of the connecting seat, facing the locking block, of the connecting seat, the locking grooves are arranged at intervals, locking protrusions matched with the locking grooves are arranged on the locking block, and the locking block moves along the vertical direction to enable the locking protrusions to be clamped into the locking grooves, so that the connecting seat is locked.

The utility model is further characterized in that the base is provided with a downward extending guide post, and the locking block is sleeved on the guide post and can form sliding fit between the guide post and the locking block.

The utility model is further characterized in that a positioning block is arranged below the locking block and is rotationally connected with the base, and the positioning block is in abutting connection with the locking block through rotation to form the limit of the locking block.

The utility model is further characterized in that a handle is fixed on the positioning block and used for driving the positioning block to rotate.

Compared with the prior art, the utility model has the beneficial effects that:

Owing to set up the waist and hold in the palm, and the waist holds in the palm the coupling end of being connected with the connecting seat through coupling portion, and be equipped with the supporting spring who is connected with the connecting seat in the spread groove, when leaning on the back of the chair, the waist holds in the palm can support the back of the chair, and the waist holds in the palm the connecting seat and slide towards the spread groove when pressing, in order to extrude supporting spring, the effort that the supporting spring produced because of deformation like this can act on the waist through the connecting seat again, make the waist hold in the palm can provide abundant holding power to the back of the chair, in order to more abundant while to the support of waist, can make the waist hold in the palm can provide different holding power to the back of the chair through the different compression ranges of supporting spring again, realize the self-adaptation, therefore, effectively solved the single back of the chair in the prior art and to the insufficient technical problem of support of user's waist, and then improve the travelling comfort of use, and through carrying out vertical direction's regulation to the waist support, can be according to user's different states, adjust to suitable position with the waist support, ensure that when leaning on the user in different states, the waist holds in the waist, can both can satisfy the user more abundant demands to the waist support when leaning on.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall structure of the transverse section of the present utility model;

FIG. 3 is a schematic view of a longitudinal cross-sectional structure of the present utility model;

fig. 4 is a schematic view of the whole structure of the present utility model when it is mounted on a seat.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 4, the utility model discloses a multifunctional self-adaptive lumbar support for a seat, which comprises a base 1 for connecting a seat 3 and a lumbar support 2 for supporting a seat back, wherein a connecting groove 101 is formed in the base 1, a connecting seat 3 capable of sliding is arranged in the connecting groove 101, one end of the connecting seat 3 extends out of the connecting groove 101 to serve as a coupling end 31, a coupling part 21 is arranged on one side of the lumbar support 2 facing the base 1, the coupling part 21 is coupled with the coupling end 31 and can form sliding fit between the coupling end 31 and the coupling end, so that the adjustment of the lumbar support 2 in the vertical direction is realized, a supporting spring 4 is arranged in the connecting groove 101, one end of the supporting spring 4 is fixed at the bottom of the connecting groove 101, one end of the supporting spring 4 is fixed at the connecting seat 3, the supporting spring 4 provides supporting force for the lumbar support 2 through the connecting seat 3, when the seat back leans on the seat back, the connecting seat 3 can slide towards the connecting groove 101 so as to squeeze the supporting spring 4, the acting force generated by deformation of the supporting spring 4 can act on the lumbar support 2 through the connecting seat 3, the lumbar support 2 can not fully meet the requirements of the lumbar support 2, and the requirements of the user can not be met by the user in the same condition as the supporting position of the lumbar support 2, and the requirements of the lumbar support 2 can not be fully adjusted by the supporting the lumbar support 2 can be fully adjusted, and the requirements of the user can not be met.

In this embodiment, a lumbar support locking device is further disposed between the coupling end 31 and the coupling portion 21, the lumbar support locking device is used for locking the lumbar support 2, so as to avoid shaking of the lumbar support 2 after adjusting the position, the specific structure of the lumbar support locking device includes a plurality of locking grooves 51 disposed on one side of the coupling portion 21 opposite to the base 1, the locking grooves 51 are disposed at intervals, an installation groove 52 opposite to the locking grooves 51 is disposed on the coupling end 31, a locking spring 53 is fixed in the installation groove 52, a locking steel ball 54 is fixed at one end of the locking spring 53 far away from the installation groove 52, the locking spring 53 is used for pushing the locking steel ball 54 into the locking groove 51, so as to form limit fit between the locking steel ball 54 and the lumbar support 2, when the position of the lumbar support 2 needs to be adjusted, since the lumbar support 2 has a certain toughness, and a certain gap exists between the coupling portion 21 and the coupling end 31, the distance between the locking groove 51 and the installation groove 52 is increased, the locking spring 54 can be pushed from the locking groove 51, at this time, the lumbar support 2 can be pushed out of the locking steel ball 21 and the coupling end 31, and the locking steel ball can be pushed into the limit fit between the two in the direction of the right, and the limit fit between the locking steel ball 2, and the limit fit between the two can be realized, and the limit fit between the locking steel ball 2 and the limit position can be adjusted.

In this embodiment, a connecting seat locking device is further arranged between the base 1 and the connecting seat 3, the connecting seat locking device is used for locking the connecting seat 3, so that the supporting spring 4 provides a constant supporting force for the lumbar support 2 through the connecting seat 3, the connecting seat 3 is locked through the connecting seat locking device, when a user leans on the chair back, the lumbar support 2 cannot push the connecting seat 3 to slide, so that the supporting spring 4 cannot generate different deformation degrees, the supporting spring 4 can provide a constant supporting force for the lumbar support 2 through the connecting seat 3, the flexibility of use can be improved, more use requirements can be met, the specific structure of the connecting seat locking device comprises a locking block 61 capable of moving along the vertical direction, the connecting seat 3 is provided with a plurality of locking grooves 62 on one side facing the locking block 61, the locking grooves 62 are arranged at intervals, when the connecting seat 3 needs to be locked, the locking block 61 moves along the vertical direction until the locking block 61 approaches the locking groove 62, and the locking block 61 approaches the locking groove 611 until the connecting seat 3 can be locked into the locking groove 3, and thus the connecting seat 3 can be locked;

The locking block 61 moves along the vertical direction, wherein a guide post 102 extending downwards is arranged on the base 1, the locking block 61 is sleeved on the guide post 102 and can form sliding fit between the two, and thus the locking block 61 can move by sliding along the guide post 102;

In addition, in order to avoid the locking of the connecting seat 3 by the locking block 61, the locking block 61 is provided with the positioning block 7 below the locking block 61, the positioning block 7 is rotatably connected to the base 1, and the connection part between the positioning block 7 and the base 1 is locked by the locking piece, and the positioning block 7 is rotated to be in contact with the locking block 61 to form the limit of the locking block 61, so when the connecting seat 3 needs to be slid, the locking piece at the connection part between the positioning block 7 and the base 1 is unscrewed, the positioning block 7 can be rotated, the positioning block 7 is far away from the locking block 61, at this time, the locking block 61 can be moved to release the locking protrusion 611 from the locking groove 62, and then the connecting seat 3 can be slid, and after the connecting seat 3 is slid to a proper position, the positioning block 7 can be abutted with the locking block 61 by rotating the positioning block 7, and the locking piece 611 at the connection part between the positioning block 7 and the base 1 is screwed tightly, so that the locking protrusion 611 can be prevented from being separated from the locking groove 62, and stable locking of the connecting seat 3 can be realized.

In this embodiment, a handle 71 is further fixed on the positioning block 7, and the handle 71 is used for driving the positioning block 7 to rotate, so that the positioning block 7 can be rotated more conveniently through the arrangement of the handle 71.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims

1. The utility model provides a multi-functional self-adaptation waist is supported for seat, its characterized in that, including the base that is used for connecting the seat with be used for carrying out the waist to the seat back and hold in the palm, be equipped with the spread groove in the base, be equipped with the connecting seat that can slide in the spread groove, connecting seat one end extends to the spread groove and regard as the coupling end outward, the waist holds in the palm one side that is located towards the base and is equipped with coupling portion, coupling portion couples in the coupling end and can constitute sliding fit between the two to realize the regulation of waist support vertical direction, be equipped with supporting spring in the spread groove, supporting spring one end is fixed in the bottom of the groove, and one end is fixed in the connecting seat, supporting spring is through the connecting seat in order to provide holding in the palm the support power to the waist.

2. The multifunctional self-adaptive lumbar support for a seat according to claim 1, wherein a lumbar support locking device is arranged between the coupling end and the coupling part, and the lumbar support locking device is used for locking the lumbar support so as to prevent the lumbar support from shaking.

3. The multifunctional self-adaptive lumbar support for a seat according to claim 2, wherein the lumbar support locking device comprises a plurality of locking grooves which are arranged on one side of the coupling part, which is opposite to the base, and are arranged at intervals, the coupling end is provided with a mounting groove which can be opposite to the locking grooves, a locking spring is fixed in the mounting groove, one end of the locking spring, which is far away from the mounting groove, is fixed with a locking steel ball, and the locking spring is used for pushing the locking steel ball into the locking groove so as to form limit fit between the locking steel ball and the locking groove.

4. A multi-functional, self-adapting lumbar support for a chair according to claim 1, wherein a connector locking means is provided between the base and the connector for locking the connector such that the support spring provides a constant support force to the lumbar support through the connector.

5. The multifunctional self-adaptive lumbar support for a seat according to claim 4, wherein the connection seat locking device comprises a locking block capable of moving in a vertical direction, a plurality of locking grooves are formed in one side of the connection seat facing the locking block, the locking grooves are arranged at intervals, locking protrusions matched with the locking grooves are arranged on the locking block, and the locking block moves in the vertical direction to enable the locking protrusions to be clamped into the locking grooves so as to lock the connection seat.

6. The multifunctional self-adaptive lumbar support for a seat according to claim 5, wherein the base is provided with a downward extending guide post, and the locking block is sleeved on the guide post and can form a sliding fit between the guide post and the base.

7. A multi-functional, self-adapting lumbar support for a chair according to claim 5 or 6, wherein a positioning block is provided below the locking block, said positioning block being rotatably connected to the base, said positioning block being configured to limit the locking block by rotating to abut the locking block.

8. The multi-functional, self-adapting lumbar support for a seat of claim 7, wherein a handle is secured to said positioning block, said handle being adapted to rotate said positioning block.