CN216534574U - Office chair headrest rotating structure - Google Patents

Abstract

The utility model discloses a rotating structure of a headrest of an office chair, which comprises: the back part of the pillow piece is provided with two mounting parts which are oppositely distributed left and right, the two mounting parts are provided with shaft holes which are coaxially arranged, the opposite side surfaces of the two mounting parts are provided with a plurality of concave holes, and the concave holes are sequentially and concentrically distributed around the center of the shaft hole at the same side; the supporting piece is provided with a connecting part, the connecting part is matched with the shaft hole through a rotating shaft and is rotatably arranged between the two mounting parts, an elastic clamping piece is arranged on the side surface of the connecting part opposite to the surface where the concave hole is located, and the end part of the elastic clamping piece extends into the concave hole; when the pillow piece rotates relative to the supporting piece, the elastic clamping piece can slide out of the current concave hole and then slide into the next adjacent concave hole according to the rotating direction; utilize the turned angle of cooperation location pillow piece of elasticity fastener and shrinkage pool, can utilize the quantity and the position distribution of shrinkage pool to regard as pillow piece turned angle's gear simultaneously, can also send the suggestion user of sound, overall structure is simple ingenious, convenient to use.

Description

Office chair headrest rotating structure

Technical Field

The utility model relates to an office chair, in particular to a rotating structure of a headrest of an office chair.

Background

The traditional headrest has no noise when rotating, is rubbed by plastic, and influences the rotation and the positioning of the headrest due to the abrasion of the plastic after long-term use; the rotation process does not have the gear and adjusts, experiences and feels poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the related art. Therefore, the utility model provides a rotating structure of a headrest of an office chair.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a headrest rotating structure for an office chair according to an embodiment of a first aspect of the present invention includes:

the back part of the pillow piece is provided with two mounting parts which are oppositely distributed left and right, the two mounting parts are provided with shaft holes which are coaxially arranged, the opposite side surfaces of the two mounting parts are provided with a plurality of concave holes, and the concave holes are sequentially and concentrically distributed around the center of the shaft hole at the same side;

the support piece is provided with a connecting part, the connecting part is matched with the shaft hole through a rotating shaft and is rotatably installed between the two installation parts, an elastic clamping piece is arranged on the side surface of the connecting part opposite to the surface where the concave hole is located, and the end part of the elastic clamping piece extends into the concave hole;

the pillow piece can slide out of the concave hole and then slide into the next adjacent concave hole in the rotating process relative to the supporting piece according to the rotating direction.

The office chair headrest rotating structure provided by the embodiment of the utility model at least has the following beneficial effects: utilize the turned angle of cooperation location pillow piece of elasticity fastener and shrinkage pool, can utilize the quantity and the position distribution of shrinkage pool to regard as pillow piece turned angle's gear simultaneously, can also send the suggestion user of sound, overall structure is simple ingenious, convenient to use.

According to some embodiments of the utility model, the side surface of the connecting part is provided with a mounting hole for mounting the elastic clamping piece, the elastic clamping piece comprises a spring and a bolt, one end of the spring is abutted against the inner wall of the mounting hole, and the other end of the spring is abutted against the bolt.

According to some embodiments of the utility model, the contact surface of the pin and the concave hole is a cambered surface.

According to some embodiments of the utility model, a limiting block is arranged on the side wall of the connecting part parallel to the axis of the rotating shaft, the pillow member is provided with a limiting groove, and the limiting block can slide up and down in the limiting groove to limit the relative rotation stroke of the pillow member relative to the supporting member.

According to some embodiments of the present invention, the connecting portion is provided with a through hole for mounting the rotating shaft, and the connecting portion surrounding the through hole is provided with a hollow groove.

According to some embodiments of the utility model, the shaft is a bolt.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the structural assembly of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a schematic view of the pillow structure of the present invention.

Reference numerals: a pillow 100; a mounting portion 110; a shaft hole 120; a recessed hole 130; a support member 200; a connecting portion 210; a rotating shaft 300; an elastic clip 400; mounting holes 220; a spring 410; a latch 420; a stopper block 230; a stopper groove 140; a through-hole 240; a hollow channel 250.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 and 2, an office chair headrest rotating structure includes: a pillow 100 and a support 200. The back of the pillow 100 is provided with two mounting parts 110 which are oppositely distributed left and right, two shaft holes 120 which are coaxially arranged are arranged on the two mounting parts 110, each concave hole 130 is sequentially and concentrically distributed around the center of the shaft hole 120 at the same side, and each concave hole 130 is sequentially and concentrically distributed around the center of the shaft hole 120. The supporting piece 200 is provided with a connecting part 210, the connecting part 210 is inserted with a rotating shaft 300, the connecting part 210 is rotatably installed between the two installation parts 110 through the matching of the rotating shaft 300 and the shaft hole 120, the side surface of the connecting part 210 opposite to the surface where the concave hole 130 is located is provided with an elastic clamping piece 400, namely the left side surface and the right side surface of the connecting part 210 are both provided with the elastic clamping pieces 400, and the end parts of the elastic clamping pieces 400 respectively extend into the concave holes 130 on the installation parts 110 where the elastic clamping pieces 400 are located; in the process of the pillow 100 rotating relative to the supporting member 200, the elastic clip 400 can slide out of the front concave hole 130 and then slide into the next adjacent concave hole 130 according to the rotating direction.

During the use, elasticity fastener 400 one end joint is in one of them shrinkage pool 130, utilizes the damping that produces between elasticity fastener 400 and the shrinkage pool 130 to fix pillow 100 and support piece 200 at current angle. According to user's user demand to support piece 200 is as the fulcrum, throw pillow 100, elastic deformation takes place after elastic clip 400 receives the effort of current shrinkage pool 130, elastic clip 400 breaks away from current shrinkage pool 130, pillow 100 rotates for support piece 200 through pivot 300, elastic clip 400 is in popping into current pillow 100 turned angle's corresponding shrinkage pool 130 simultaneously, elastic clip 400 can strike shrinkage pool 130 inner wall at the in-process of popping into different positions shrinkage pool 130, the sound of tickling is sent out. Utilize the cooperation location pillow 100's of elasticity fastener 400 and shrinkage pool 130 turned angle, can utilize the quantity and the position distribution of shrinkage pool 130 to regard as pillow 100 turned angle's gear simultaneously, can also send the suggestion user of sound, overall structure is simple ingenious, convenient to use.

In some embodiments of the present invention, the side of the connecting portion 210 is provided with a mounting hole 220 for mounting the elastic clip 400, the elastic clip 400 comprises a spring 410 and a latch 420, one end of the spring 410 abuts against the inner wall of the mounting hole 220, and the other end abuts against the latch 420. The latch 420 may be stepped, the spring 410 is sleeved on the latch 420, and the latch 420 is axially and telescopically moved on the mounting hole 220 by the elastic action of the spring 410. As the pillow 100 rotates, the recess 130 exerts a force on the end of the pin 420, causing the pin 420 to retract back out of the recess 130 toward the mounting hole 220, compressing the spring 410. When the next recess 130 is rotated, the latch 420 is forced into the corresponding recess 130 by the spring 410.

Further, the contact surface of the bolt 420 and the concave hole 130 is an arc surface, and when the pillow 100 rotates, the end of the bolt 420 and the inner wall of the concave hole 130 convert the arc surface tangent acting force into the axial acting force of the bolt 420 so that the end of the bolt 420 moves away from the current concave hole 130.

As shown in fig. 2 and 3, in some embodiments of the present invention, a limiting block 230 is disposed on a sidewall of the connecting portion 210 parallel to an axis of the rotating shaft 300, the pillow 100 is provided with a limiting groove 140, and the limiting block 230 can slide up and down in the limiting groove 140 to limit a relative rotation stroke of the pillow 100 with respect to the supporting member 200; the limiting block 230 is located in the limiting groove 140 in a normal state, and when the pillow 100 rotates, the limiting groove 140 moves relative to the limiting block 230, which is equivalent to the limiting block 230 sliding in the limiting groove 140, and the up-and-down moving stroke of the upper and lower surfaces of the limiting block 230 is limited by the distance between the upper and lower inner side walls of the limiting groove 140.

In some embodiments of the present invention, the connection portion 210 is provided with a through hole 240 for installing the rotation shaft 300, and the connection portion 210 surrounding the through hole 240 is provided with a hollow groove 250. The empty groove increases the structural strength of the connection portion 210.

Further, the rotation shaft 300 is a bolt, and the mounting portion 110 and the connecting portion 210 are connected by a bolt and a nut, and the tightness of the bolt and the nut can be controlled to control the magnitude of the acting force when the pillow 100 rotates relative to the support member 200.

In the description herein, references to the description of "some specific embodiments" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. The utility model provides an office chair headrest revolution mechanic which characterized in that includes:

the pillow comprises a pillow piece (100), wherein the rear part of the pillow piece is provided with two installation parts (110) which are oppositely distributed left and right, the two installation parts (110) are provided with shaft holes (120) which are coaxially arranged, the opposite side surfaces of the two installation parts (110) are provided with a plurality of concave holes (130), and the concave holes (130) are sequentially and concentrically distributed around the centers of the shaft holes (120) on the same side;

the supporting piece (200) is provided with a connecting part (210), the connecting part (210) is matched with the shaft hole (120) through a rotating shaft (300) and is rotatably installed between the two installation parts (110), an elastic clamping piece (400) is arranged on the side surface of the connecting part (210) opposite to the surface where the concave hole (130) is located, and the end part of the elastic clamping piece (400) extends into the concave hole (130);

wherein, pillow piece (100) relative support piece (200) rotation in-process, according to the direction of rotation elasticity fastener (400) can roll off present recess (130) after slide into next adjacent in recess (130).

2. The office chair headrest rotating structure according to claim 1, wherein: the side of connecting portion (210) is equipped with and is used for installing mounting hole (220) of elasticity fastener (400), elasticity fastener (400) include spring (410) and bolt (420), spring (410) one end with mounting hole (220) inner wall butt, the other end with bolt (420) butt.

3. The office chair headrest rotating structure according to claim 2, wherein: the contact surface of the bolt (420) and the concave hole (130) is an arc surface.

4. The office chair headrest rotating structure according to claim 1, wherein: the side wall of the connecting part (210) parallel to the axis of the rotating shaft (300) is provided with a limiting block (230), the pillow piece (100) is provided with a limiting groove (140), and the limiting block (230) can slide up and down in the limiting groove (140) to limit the relative rotation stroke of the pillow piece (100) relative to the supporting piece (200).

5. The office chair headrest rotating structure according to claim 1, wherein: be equipped with on connecting portion (210) and be used for the installation through-hole (240) of pivot (300), encircle through-hole (240) be equipped with hollow groove (250) on connecting portion (210).

6. The office chair headrest rotating structure according to claim 1, wherein: the rotating shaft (300) is a bolt.

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