CN-224206497-U - Rotation adjusting mechanism and foot support assembly of seat

Abstract

The utility model discloses a rotation adjusting mechanism and a foot rest assembly of a seat, wherein the rotation adjusting mechanism comprises a mounting seat, a rotation seat, a locking piece and an elastic piece, the rotation seat is pivoted on the mounting seat, the locking piece and the elastic piece are arranged between the mounting seat and the rotation seat, a pushing inclined plane, a supporting end face and a poking part are arranged on the rotation seat, a hanging part is arranged on the locking piece, a hanging groove is arranged on the mounting seat, the hanging part can be embedded in the hanging groove, the locking piece is prevented from rotating around an axis relative to the mounting seat through the matching of the hanging part and the hanging groove, the locking piece is prevented from moving towards a direction close to the rotation seat along the axis relative to the mounting seat, and an inclined guide wall is formed on one side of the hanging groove. According to the utility model, the angle adjustment of the rotating seat relative to the mounting seat can be realized by only operating the rotating seat by one hand, and the operation process is simple and convenient.

Inventors

• FENG XIAOWEI
• Request for anonymity

Assignees

• 杭州黑白调科技有限公司

Dates

Publication Date

20260508

Application Date

20250630

Claims (10)

1. 1. The rotation adjusting mechanism is characterized by comprising a mounting seat, a rotation seat, a locking piece and an elastic piece; The rotating seat is pivoted on the mounting seat so that the rotating seat can rotate relative to the mounting seat around an axis, the locking piece and the elastic piece are arranged between the mounting seat and the rotating seat, and the elastic piece is used for applying elastic stress to the locking piece so as to enable the locking piece to always keep a trend of moving towards the rotating seat; The rotating seat is provided with a pushing inclined surface, a supporting end surface and a poking part, wherein the pushing inclined surface is matched with the locking piece and used for pushing the locking piece from a first position far away from the mounting seat to a second position close to the mounting seat when the rotating seat rotates around the axis along the anticlockwise relative to the mounting seat; The locking piece is provided with a hanging part, the mounting seat is provided with a hanging groove, when the locking piece is in a fourth position, the hanging part is embedded in the hanging groove so as to prevent the locking piece from rotating around the axis relative to the mounting seat and prevent the locking piece from moving along the axis relative to the mounting seat towards a direction close to the rotating seat through the matching of the hanging part and the hanging groove, one side of the hanging groove forms an inclined guide wall, and when the stirring part rotates around the axis along the clockwise direction relative to the mounting seat along with the rotating seat so that the stirring part stirs the locking piece to rotate around the axis along the clockwise direction relative to the mounting seat, the inclined guide wall is used for pushing the locking piece to enable the hanging part to be separated from the hanging groove.
2. 2. The rotation adjustment mechanism according to claim 1, wherein a boss extending toward the mount is provided on the rotation seat, a pushing inclined surface is formed on one side of the boss, a supporting end surface is formed on an end surface of the boss toward the mount, a recess for accommodating the boss is provided on an end of the locking member toward the rotation seat, and a mating inclined surface matching the pushing inclined surface is provided on one side of the recess.
3. 3. The rotary adjusting mechanism as claimed in claim 2, wherein the striking part is located at an inner edge of the boss, the striking part extends toward the mounting seat along the axis and protrudes out of the supporting end surface, a through hole for the striking part to penetrate is provided in the middle of the locking member, a stopper extending along the axis is provided on an inner wall of the through hole, and the stopper is matched with the striking part so that the striking part can strike the stopper to rotate around the axis.
4. 4. The rotary adjusting mechanism according to claim 1, wherein the mounting base is provided with a mounting groove recessed from an end surface of the mounting base facing the rotary base in a direction away from the rotary base, the locking member and the elastic member are both located in the mounting groove, an inner wall surface of the mounting groove is provided with a sliding groove extending along the axis, and an outer periphery of the locking member is provided with a sliding block slidably embedded in the sliding groove.
5. 5. The rotary adjusting mechanism as set forth in claim 4, wherein a notch is provided on one side of the slider, the notch being recessed from one end of the slider toward the rotary seat toward the mounting seat, a hooking portion protruding toward the rotary seat is formed between the notch and a side wall of the one side of the slider, the side of the hooking portion away from the notch forming an inclined wall, an opening of the hooking groove being directed away from the rotary seat, a protruding portion protruding toward a direction away from the rotary seat is formed between an end of one side wall of the chute away from the rotary seat and the hooking groove, a side wall of the hooking groove near the protruding portion forming an inclined guide wall, a side of the hooking groove away from the protruding portion forming a blocking wall, the protruding portion being caught in the notch when the locking member is in the fourth position.
6. 6. The rotary adjusting mechanism according to claim 5, wherein two sliding grooves staggered along the circumferential direction of the mounting seat are formed in the inner wall of the mounting groove, two sliding blocks are arranged on the outer periphery of the locking piece, and the two sliding blocks are respectively and slidably embedded in the two sliding grooves.
7. 7. The rotary adjusting mechanism according to claim 1, wherein the middle part of the locking piece is provided with a through hole, the rotary seat is provided with a shaft hole, a rotary shaft is penetrated into the shaft hole, and the rotary shaft is fixedly connected to the mounting seat through bolts after penetrating through the through hole of the locking piece.
8. 8. The rotary adjusting mechanism as claimed in claim 7, wherein the elastic member is a spring sleeved outside the rotary shaft, and both ends of the spring are respectively abutted against the locking member and the mounting seat.
9. 9. A foot rest assembly of a seat, characterized by comprising a rotation adjusting mechanism, a movable rod, a fixed seat and a foot rest according to any one of claims 1-8, wherein the movable rod is connected to the fixed seat in a penetrating way and can move relative to the fixed seat, a mounting seat of the rotation adjusting mechanism is fixedly connected to the end part of the movable rod, and the foot rest is connected to a rotation seat of the rotation adjusting mechanism.
10. 10. The seat foot rest assembly of claim 9, wherein the mounting seat has a mounting hole therein, two opposed spacers are disposed in the mounting hole and fastened to each other, a guide hole is formed between the two spacers, and the movable rod is inserted into the guide hole.

Description

Rotation adjusting mechanism and foot support assembly of seat Technical Field The utility model relates to the technical field of seats, in particular to a rotation adjusting mechanism and a foot rest assembly of a seat. Background Some office chairs and ergonomic chairs are often configured with a foot rest assembly for increased comfort of the chair, the foot rest assembly comprising a telescoping rod connected to a frame portion of the chair, and a foot rest connected to the telescoping rod, the foot rest rotatably connected to an end of the telescoping rod to configure the foot rest to be adjustable in angle relative to the telescoping rod, and in use, the foot rest is pulled out of the bottom of the chair, rotated to an angle suitable for support, and when not in use, rotated to bring the foot rest and telescoping rod into a collapsed state, and then pushed to the bottom of the chair. The existing foot support assembly can realize foot support adjustment, but when the foot support is turned over, a user needs to operate a switch mechanism between the foot support and the telescopic rod through one hand, so that the foot support and the telescopic rod are unlocked, and the foot support is rotated through the other hand, so that the operation process is complicated. Disclosure of utility model The utility model aims to provide a rotation adjusting mechanism and a foot rest assembly of a seat, which can realize the adjustment of a rotation angle by only one-hand operation and are simple and convenient to operate. In order to achieve the above purpose, the utility model adopts the following technical scheme: The rotation adjusting mechanism comprises a mounting seat, a rotation seat, a locking piece and an elastic piece; The rotating seat is pivoted on the mounting seat so that the rotating seat can rotate relative to the mounting seat around an axis, the locking piece and the elastic piece are arranged between the mounting seat and the rotating seat, and the elastic piece is used for applying elastic stress to the locking piece so as to enable the locking piece to always keep a trend of moving towards the rotating seat; The rotating seat is provided with a pushing inclined surface, a supporting end surface and a poking part, wherein the pushing inclined surface is matched with the locking piece and used for pushing the locking piece from a first position far away from the mounting seat to a second position close to the mounting seat when the rotating seat rotates around the axis along the anticlockwise relative to the mounting seat; The locking piece is provided with a hanging part, the mounting seat is provided with a hanging groove, when the locking piece is in a fourth position, the hanging part is embedded in the hanging groove so as to prevent the locking piece from rotating around the axis relative to the mounting seat and prevent the locking piece from moving along the axis relative to the mounting seat towards a direction close to the rotating seat through the matching of the hanging part and the hanging groove, one side of the hanging groove forms an inclined guide wall, and when the stirring part rotates around the axis along the clockwise direction relative to the mounting seat along with the rotating seat so that the stirring part stirs the locking piece to rotate around the axis along the clockwise direction relative to the mounting seat, the inclined guide wall is used for pushing the locking piece to enable the hanging part to be separated from the hanging groove. Preferably, a boss extending towards the mounting seat is arranged on the rotating seat, a pushing inclined plane is formed on one side of the boss, a supporting end face is formed on the end face of the boss towards the mounting seat, a concave position for accommodating the boss is arranged at one end of the locking piece towards the rotating seat, and a matching inclined plane matched with the pushing inclined plane is arranged on one side of the concave position. Preferably, the stirring part is located at the inner edge of the boss, the stirring part extends towards the mounting seat along the axis and protrudes out of the supporting end face, a through hole for the stirring part to penetrate is formed in the middle of the locking piece, a stop block extending along the axis is arranged on the inner wall of the through hole, and the stop block is matched with the stirring part, so that the stirring part can stir the stop block to rotate around the axis. Preferably, the mounting seat is provided with a mounting groove which is recessed from the end face, facing the rotating seat, of the mounting seat towards the direction away from the rotating seat, the locking piece and the elastic piece are both positioned in the mounting groove, the inner wall surface of the mounting groove is provided with a sliding groove extending along the axis, and the outer periphery of the locking piece is provided with a sliding block which is emb