CN-224219761-U - Regulator for tilting buffer elastic piece and chassis using regulator

CN224219761UCN 224219761 UCN224219761 UCN 224219761UCN-224219761-U

Abstract

The utility model discloses a regulator for a tilting buffer elastic piece and a chassis using the regulator, wherein the regulator comprises a supporting shaft for supporting the tilting buffer elastic piece, the chassis comprises a base, a seat connecting piece, a back connecting piece, the tilting buffer elastic piece and the regulator, the supporting shaft is rotatably arranged on the back connecting piece, at least two gear grooves with different depths or heights are arranged on the supporting shaft in a radial sunk mode and are circumferentially arranged, the elastic piece can be switched in the grooves, the supporting shaft is integrally formed or fixedly connected with a regulating block, the regulating block is also provided with gear grooves with different heights, the tilting buffer elastic piece is switched among the gear grooves to change initial elasticity and adapt to people with different weights, compared with stepless regulation, the scheme has the advantages of high regulating speed, the elasticity can be switched by rotating a certain angle, the change of the elasticity of the gear is remarkable, the operation is convenient, the gear grooves can be prevented from being separated, the stability is strong, the service life is small, and the quick regulation requirement of a seat is met.

Inventors

HUANG ZHONGLIANG
WANG JUN
CHENG ZEYU
LIU ZHU

Assignees

永艺家具股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250512

Claims (10)

1. The regulator for the tilting buffer elastic piece is characterized by comprising an abutting shaft for abutting the tilting buffer elastic piece in a chassis, wherein at least two gear grooves are formed in the abutting shaft, the gear grooves are recessed along the radial direction of the abutting shaft and different in depth, the different gear grooves are arranged along the circumferential direction of the abutting shaft, the tilting buffer elastic piece is abutted in the gear grooves, and the tilting buffer elastic piece is switched in the different gear grooves when the abutting shaft rotates.
2. The regulator for the tilting buffer elastic piece is characterized by comprising an abutting shaft for abutting the tilting buffer elastic piece in a chassis, wherein an adjusting block is integrally formed on or fixedly connected with the abutting shaft, the adjusting block radially protrudes out of the abutting shaft, at least two gear grooves with different heights are formed in the adjusting block, the gear grooves are radially recessed along the abutting shaft, different gear grooves are arranged along the circumferential direction of the adjusting block, the gear grooves are configured to enable the tilting buffer elastic piece to abut in the gear grooves, and the tilting buffer elastic piece is switched in the different gear grooves when the adjusting block rotates.
3. The regulator for tilting buffer elastic member according to claim 2, wherein the bag regulating block comprises a connecting portion and an acting portion, the connecting portion is sleeve-shaped and sleeved on the abutting shaft, the acting portion protrudes from the connecting portion in the radial direction, and the gear groove is formed in the acting portion.
4. The regulator for tilting buffer elastic member according to claim 3, wherein the action portion is provided with five said shift grooves in the circumferential direction, the heights of the five shift grooves being sequentially increased.
5. The regulator for tilting buffer elastic member according to claim 3, wherein the blocking portions are provided at both front and rear end portions of the acting portion, the two blocking portions being located at sides of the first gear groove and the last gear groove, respectively.
6. The regulator for a pitch buffer spring as claimed in claim 1 or 2, wherein a convex spanning portion is provided between each two adjacent shift grooves.
7. The chassis is characterized by comprising a base, a seat connecting piece, a back connecting piece, a tilting buffer elastic piece and the regulator according to any one of claims 1-5, wherein the base is configured to be a main body support and is used for being connected with a supporting base of a seat, the seat connecting piece is arranged on the base and is configured to be connected with a seat, the back connecting piece is rotatably arranged on the base and is configured to be connected with a chair back, the back connecting piece is rotatably connected on the base through a rotating shaft, the tilting buffer elastic piece is arranged on the rotating shaft, one end of the tilting buffer elastic piece is abutted against the base or the seat connecting piece, the other end of the tilting buffer elastic piece is abutted against the gear groove, the abutment shaft is rotatably arranged on the back connecting piece, and the gear groove rotates along with the abutment shaft when the abutment shaft rotates and enables the tilting buffer elastic piece to be switched in different gear grooves.
8. The chassis of claim 7, wherein the tilt buffer spring is a torsion spring having a first arm and a second arm extending therefrom, the first arm being in abutment with the gear slot and the second arm being in abutment with the base or the seat attachment.
9. The chassis of claim 8, wherein the torsion springs are arranged symmetrically left and right, the back end of the base is fixedly provided with spring seats, the spring seats are provided with two accommodating grooves, and the second support arms are arranged in the accommodating grooves and are abutted with the spring seats.
10. The chassis of claim 8, wherein the end of the first arm is bent to form an abutment disposed in the left-right direction, the abutment being disposed in the gear slot.

Description

Regulator for tilting buffer elastic piece and chassis using regulator Technical Field The utility model relates to the field of furniture, in particular to a regulator for tilting a buffer elastic piece and a chassis using the regulator. Background In the seat manufacturing industry, the tilting function of the seat chassis is a key technology for improving the comfort of users, and the tilting buffer elastic piece is used as a core component for realizing the function, so that the elastic force adjusting performance of the buffer elastic piece directly influences the use experience of the seat, and the existing seat chassis has a certain problem in the part more or less. Most traditional seat chassis adopts the fixed elastic tilting buffer elastic piece, can not be flexibly adjusted according to the weight, sitting habit and use scene of different users, when the user with lighter weight uses the spring with overlarge elastic force, the tilting resistance of the chair back is too high, smooth tilting is difficult to realize, and when the user with heavier weight uses the spring with overlarge elastic force, enough buffer support can not be obtained, so that the tilting process is too rapid and even potential safety hazard exists, and in addition, the single elastic force spring can not meet the different requirements of the user on the tilting force of the chair back in different scenes such as offices, rest and the like. The seat chassis with the elastic force adjusting function is realized in a stepless adjustment way, for example, a chassis rocker is connected with a pressure spring, the pressure spring is compressed when the rocker rotates, the initial length of the pressure spring is adjusted through an external knob, generally a shell-shaped knob, so that the elastic force of the pressure spring is adjusted, other similar stepless adjustment ways exist, for example, two inclined blocks are matched with each other to change the lifting height of one torsion arm of the torsion spring through the movement of an inclined plane, the stepless adjustment speed is very slow, and a user needs to adjust the elastic force for a long time. Thus, there is a continuing need for an adjuster for a pitch-over cushioning elastic member and a chassis using the same to solve the above-described problems. Disclosure of Invention In order to solve the technical problems, the utility model provides a regulator for a tilting buffer elastic piece, which comprises an abutting shaft for abutting the tilting buffer elastic piece, wherein at least two gear grooves with different depths or heights are arranged on the shaft, the gear grooves are recessed along the radial direction and are circumferentially arranged, the elastic piece can be switched in the grooves, the abutting shaft or an integrated forming or fixed connection regulating block is also arranged on the abutting shaft, the regulating block is also provided with the gear grooves with different heights, the tilting buffer elastic piece is switched among the gear grooves to change initial elasticity and adapt to people with different weights, compared with stepless regulation, the regulating speed of the scheme is high, the elasticity can be switched by rotating a certain angle, the change of the gear to the elasticity is obvious, the operation is convenient, the gear grooves can be prevented from disengaging, the stability is strong, the abrasion is small, the service life is long, and the requirement of quick regulation of a seat is met. The chassis comprises a base, a seat connecting piece, a back connecting piece, a tilting buffer elastic piece and the adjuster, wherein the abutting shaft is rotatably arranged on the back connecting piece, and the gear grooves rotate along with the abutting shaft when the abutting shaft rotates and enable the tilting buffer elastic piece to be switched among different gear grooves. The technical scheme of the utility model is realized as follows: The regulator for the tilting buffer elastic piece comprises an abutting shaft for abutting the tilting buffer elastic piece in a chassis, wherein at least two gear grooves are formed in the abutting shaft, the gear grooves are recessed along the radial direction of the abutting shaft and different in depth, the different gear grooves are arranged along the circumferential direction of the abutting shaft, the gear grooves are configured to be in abutting connection with the tilting buffer elastic piece in the gear grooves, and the tilting buffer elastic piece is switched in the different gear grooves when the abutting shaft rotates. The utility model provides a regulator for leaning on buffering elastic component, including the butt axle that supplies leaning on buffering elastic component butt in the chassis, integrated into one piece or fixedly connected with regulating block on the butt axle, the regulating block radially protrudes in the butt axle, is equipped with the gear groove of