CN219720197U

CN219720197U - Chair with adjustable headrest

Info

Publication number: CN219720197U
Application number: CN202321086354.3U
Authority: CN
Inventors: 吴文星
Original assignee: Dongguan Xingrong Plastic Hardware Co ltd
Current assignee: Dongguan Xingrong Plastic Hardware Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-09-22
Anticipated expiration: 2033-05-06

Abstract

The utility model discloses a seat with an adjustable headrest, which comprises a seat body, a backrest and the headrest, wherein a fixed seat is arranged on the back of the backrest, the fixed seat is provided with an adjusting seat, and the headrest is fixedly connected with the adjusting seat; the adjusting seat is rotated forwards after the headrest is lifted up by sliding upwards, and the headrest is turned forwards until the front surface of the headrest is suspended above the backrest forwards; the fixing seat and the adjusting seat are provided with positioning structures which are matched with each other, and the lifted headrest is positioned through the positioning structures; the headrest is attached to the back of the backrest when being folded. According to the utility model, the backrest is provided with the fixing seat, the adjusting seat which can slide up and down and is positioned along the fixing seat is arranged through the fixing seat, and the headrest is arranged on the adjusting seat. The headrest can be unfolded at the position on the front side of the backrest through the sliding adjusting seat, and can be adjusted up and down to adapt to students with different heights. The headrest can be returned to the position which is attached to the back of the backrest through the sliding adjusting seat, so that the sight of the students behind the headrest is not blocked.

Description

Chair with adjustable headrest

Technical Field

The utility model relates to the technical field of seat products, in particular to a seat with a headrest, and particularly relates to a tablet chair for students to take lessons.

Background

Seating is furniture, such as a tablet chair for students, indispensable for life, work and study of people. Conventional chairs with backs are all of a fixed height, which results in a student of a higher stature not being able to lean against the head and not being able to use the chair properly. For this reason, although some seats with a headrest have been invented, most of them use a fixed headrest, which is not only not used by a student sitting in front of a shorter stature, but may also obstruct the line of sight of a student at the back. Although some parts are designed with the structure of the adjustable headrest, the headrest is complex in adjusting structure or troublesome in operation, and the headrest can only be folded for a part or folded forwards, so that the headrest is inconvenient to use.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides the seat with the adjustable headrest, which has the advantages of simpler structure, lower cost and convenient operation and use and can completely receive the headrest behind the backrest.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a take seat of adjustable headrest, is including the chair body, back and headrest, and the back is installed on the chair body, and the headrest is installed on the back, its characterized in that: a fixed seat is arranged on the back of the backrest, an adjusting seat which can slide up and down along the fixed seat and can rotate back and forth is arranged on the fixed seat, and the headrest is fixedly connected with the adjusting seat; the adjusting seat is rotated forwards after the headrest is lifted up by sliding upwards, and the headrest is turned forwards until the front surface of the headrest is suspended above the backrest forwards; positioning structures matched with each other are arranged on the fixed seat and the adjusting seat, and the lifted headrest is positioned through the positioning structures; when the headrest is retracted, the headrest and the backrest are in a back-to-back state, so that the headrest is attached to the back surface of the backrest.

Further, sliding shafts extending outwards are arranged on two sides of the fixed seat, a sliding groove for accommodating the sliding shafts is formed in the adjusting seat, the sliding shafts are inserted into the sliding groove, and the adjusting seat is adjusted by sliding up and down so as to achieve adjustment of the height position of the headrest; the end part of the fixing seat, which is positioned between the sliding shafts, is provided with a positioning head in an arc-shaped protruding structure, the head end of the sliding groove is provided with a shape matched with the positioning head, and the head rest is embedded into the head end of the sliding groove to realize fixation when being unfolded and positioned at the highest position.

Further, be provided with the guide way that is used for holding the fixing base in the adjustment seat, two spouts are located the left and right sides of guide way, and spout and guide way intercommunication, the fixing base inlays and locates in the guide way.

Further, positioning blocks extending outwards are arranged on two sides of the fixing seat, a clearance groove matched with the positioning blocks is formed on two sides of the guide groove, the adjusting seat slides up to a required position and then rotates forwards along the sliding shaft to enable the headrest to be overturned to the front side, the positioning blocks are embedded into the sliding grooves through the clearance groove, and therefore the headrest is fixed, and therefore the headrest can be used for leaning on the head.

Further, the headrest is provided with a bent connector, and is fixedly connected with the adjusting seat through the connector; the radian of the connector enables a gap with the width larger than the thickness of the upper part of the backrest to be arranged between the headrest and the adjusting seat, the upper part of the backrest is embedded into the gap when the headrest descends after being unfolded, and the position avoidance when the headrest is adjusted up and down is achieved, so that the headrest has a larger adjusting range. Whereas conventional headrests are typically only adjustable over the top of the backrest, resulting in a small adjustment range.

Preferably, the positioning block, the sliding shaft and the fixing seat are of an integrated structure, and can be made of plastic or metal; the connector and the headrest are of an integrated structure, and are preferably made of plastic.

Further, a mounting hole is formed in the fixing seat, a positioning marble with a spring is mounted in the mounting hole, a plurality of arc-shaped positioning holes are longitudinally formed in the guide groove of the adjusting seat, and after the headrest is unfolded, the headrest is clamped into any positioning hole through the positioning marble to position the headrest.

Furthermore, the foot rest is arranged on the bottom surface of the seat of the chair body through the telescopic rod, and is folded and stuck on the bottom surface of the seat of the chair body, so that the additional space is not occupied completely.

Further, a fixed head is fixed at the front end of the telescopic rod, the fixed rod is penetrated in the fixed head, two foot rests are arranged on the fixed rod, and the two foot rests are respectively arranged at two sides of the fixed head.

Further, the fixed rod is rotatably arranged in the fixed head, two sides of the fixed head are provided with rotary grooves, and stop blocks are arranged in the rotary grooves; the foot rest is provided with a convex limiting block on one side facing the fixed head, the limiting block is embedded in the rotary groove, and the foot rest is abutted against the limiting block through the limiting block after being completely unfolded so as to realize positioning of the unfolding state of the foot rest, so that the foot rest can not rotate downwards any more, and the foot rest can be used for leaning on the foot.

Further, the foot rest is provided with a jack corresponding to the fixed rod, and a positioning sheet is arranged in the jack; the end of the fixed rod is provided with an inserting port matched with the locating plate, and the fixed rod is inserted into the inserting port through the locating plate after being inserted into the inserting hole, so that the two foot rests form a structure capable of synchronously rotating. Therefore, the operation is more convenient when the foot rest is unfolded and folded, the foot rest can be ensured to keep the same angle all the time, and the phenomenon of one high and one low is avoided.

According to the utility model, the backrest is provided with the fixing seat, the adjusting seat which can slide up and down and is positioned along the fixing seat is arranged through the fixing seat, and the headrest is arranged on the adjusting seat. The headrest can be unfolded at the position on the front side of the backrest through the sliding adjusting seat, and can be adjusted up and down to adapt to students with different heights. The headrest can be retracted to the position which is close to the back of the backrest through the sliding adjusting seat, so that the headrest can be completely retracted, and the headrest can not block the sight of a student at the back.

Drawings

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

FIG. 2 is a general block diagram of the stowed headrest of the present utility model;

FIG. 3 is a block diagram of the utility model after the back rest is reclined, the headrest and the footrests are extended;

FIG. 4 is an overall block diagram of the headrest;

FIG. 5 is an overall block diagram of another angle of the headrest;

FIG. 6 is an exploded view of the headrest;

FIG. 7 is an exploded view of the footrest assembly;

FIG. 8 is an exploded view of another angle of the footrest assembly.

In the figure, 1 is a chair body, 2 is a backrest, 3 is a headrest, 31 is a connector, 4 is a fixed seat, 41 is a sliding shaft, 42 is a positioning block, 43 is a mounting hole, 44 is a positioning head, 5 is an adjusting seat, 51 is a guide groove, 52 is a sliding groove, 53 is a avoiding groove, 54 is a positioning hole, 6 is a foot rest, 61 is an inserting hole, 62 is a positioning plate, 63 is a positioning block, 7 is a telescopic rod, 71 is a fixed head, 72 is a rotating groove, 73 is a stop block, 8 is a fixed rod, and 81 is an inserting port.

Detailed Description

In this embodiment, referring to fig. 1, 2, and 4-6, the seat with an adjustable headrest includes a seat body 1, a backrest 2, and a headrest 3, where the backrest 2 is mounted on the seat body 1, and the headrest 3 is mounted on the backrest 2; a fixed seat 4 is arranged on the back of the backrest 2, an adjusting seat 5 which can slide up and down along the fixed seat 4 and can rotate back and forth is arranged on the fixed seat 4, and the headrest 3 is fixedly connected with the adjusting seat 5; the headrest 3 is lifted by the upward sliding of the adjusting seat 5, and then the adjusting seat 5 is rotated forwards, so that the headrest 3 can be turned forwards until the front surface of the headrest is suspended above the backrest 2 forwards; the fixing seat 4 and the adjusting seat 5 are provided with mutually matched positioning structures, and the lifted headrest 3 is positioned through the positioning structures; when the headrest 3 is retracted, the headrest and the backrest 2 are in a back-to-back state, so that the headrest 3 is attached to the back surface of the backrest 2.

Slide shafts 41 extending outwards are arranged on two sides of the fixed seat 4, sliding grooves 52 for accommodating the slide shafts 41 are arranged in the adjusting seat 5, the slide shafts 41 are inserted into the sliding grooves 52, and the adjusting seat 5 is adjusted by sliding up and down so as to adjust the height of the headrest 3, so that students with different heights can be accommodated; the positioning heads 44 with arc-shaped protruding structures are arranged at the end positions of the fixing base 4 between the sliding shafts 41, the head ends of the sliding grooves 52 are provided with shapes matched with the positioning heads 44, and the positioning heads 44 are embedded into the head ends of the sliding grooves 52 to realize close-fitting fixation, so that the headrest 3 is prevented from shaking when being knocked down.

The adjusting seat 5 is provided with a guide groove 51 for accommodating the fixing seat 4, two sliding grooves 52 are positioned on the left side and the right side of the guide groove 51, the sliding grooves 52 are communicated with the guide groove 51, and the fixing seat 4 is embedded in the guide groove 51.

Positioning blocks 42 extending outwards are arranged on two sides of the fixed seat 4, a clearance groove 53 matched with the positioning blocks 42 is arranged on two sides of the guide groove 51, the adjusting seat 5 slides up to a required position and then rotates forwards along the sliding shaft 41 to enable the headrest 3 to turn to the front side forwards, the positioning blocks 42 are embedded into the sliding grooves 51 through the clearance groove 53 to tightly abut against the adjusting seat 5, and therefore a positioning structure of the headrest 3 is formed, and the headrest 3 can be used for leaning on the head.

The headrest 3 is provided with a bent connector 31, and the headrest 3 is fixedly connected with the adjusting seat 5 through the connector 31; the radian of the connector 31 enables a gap with the width larger than the thickness of the upper part of the backrest 2 to be formed between the headrest 3 and the adjusting seat 5, the upper part of the backrest 2 is embedded into the gap when the headrest 3 descends after being unfolded, the position avoiding during up-and-down adjustment of the headrest 3 is realized, and the headrest 3 has a larger adjusting range. Whereas conventional headrests are typically only adjustable over the top of the backrest, resulting in a small adjustment range.

The positioning block 42, the sliding shaft 41 and the fixing seat 4 are of an integrated structure and can be made of plastic or metal; the connector 31 and the headrest 3 are of an integral structure, and are preferably made of plastic.

The fixing seat 4 is provided with a mounting hole 43, a positioning marble (for directly purchasing products, not shown) with a spring is arranged in the mounting hole 43, a plurality of arc-shaped positioning holes 54 are longitudinally arranged in the guide groove 51 of the adjusting seat 5, and after the headrest 3 is unfolded, the positioning marble is clamped into any one of the positioning holes 54 to position the headrest 3. For example, the uppermost positioning hole 54 corresponds to the highest position of the headrest 3, the lowermost positioning hole 54 corresponds to the lowest position of the headrest 3, and when the adjusting seat 5 slides up and down, the positioning marble passes through the different positioning holes 54.

Referring to fig. 1, 3, 7 and 8, a footrest 6 is mounted on the bottom surface of the seat body 1 through a telescopic rod 7, and the footrest 6 is retracted and attached to the bottom surface of the seat body 1, so that no additional space is occupied.

A fixed head 71 is fixed at the front end of the telescopic rod 7, a fixed rod 8 is penetrated in the fixed head 71, two foot rests 6 are arranged on the fixed rod 8, and the two foot rests 6 are respectively arranged at two sides of the fixed head 71.

The fixed rod 8 is rotatably arranged in the fixed head 71, the two sides of the fixed head 71 are provided with rotary grooves 72, and the rotary grooves 72 are provided with stop blocks 73; a protruding limiting block 63 is arranged on one side of the foot rest 6 facing the fixed head 71, the limiting block 63 is embedded in the rotating groove 72, and after the foot rest 6 is rotated to be fully unfolded, the limiting block 63 is propped against the limiting block 73 to realize positioning of the unfolded state of the foot rest 6, so that the foot rest 6 can not rotate downwards any more, and the foot rest can be used for leaning on a foot.

The foot rest 6 is provided with an inserting hole 61 corresponding to the fixed rod 8, and a positioning sheet 62 is arranged in the inserting hole 61; the end of the fixing rod 8 is provided with an inserting port 81 matched with the positioning plate 62, and after the fixing rod 8 is inserted into the inserting port 61, the fixing rod is clamped into the inserting port 81 through the positioning plate 62, so that the two foot rests 6 form a synchronous rotating structure. Therefore, the operation is more convenient when the foot rest 6 is unfolded and folded, the same angle of the foot rest 6 can be ensured all the time, and the phenomenon of high and low is avoided.

Therefore, when students are in noon break, the seats of the utility model can be matched with a special desk (filed in another mode) after being put flat, the desk can be put at an inclined position without moving the positions of the desk and the chair, and the comfortable noon break environment can be provided for the students by utilizing the original seat space.

The foregoing detailed description of the utility model has been presented for purposes of illustration and description, but is not intended to limit the scope of the utility model, i.e., the utility model is not limited to the details shown and described.

Claims

1. The utility model provides a take seat of adjustable headrest, is including the chair body, back and headrest, and the back is installed on the chair body, and the headrest is installed on the back, its characterized in that: a fixed seat is arranged on the back of the backrest, an adjusting seat which can slide up and down along the fixed seat and can rotate back and forth is arranged on the fixed seat, and the headrest is fixedly connected with the adjusting seat; the adjusting seat is rotated forwards after the headrest is lifted up by sliding upwards, and the headrest is turned forwards until the front surface of the headrest is suspended above the backrest forwards; positioning structures matched with each other are arranged on the fixed seat and the adjusting seat, and the lifted headrest is positioned through the positioning structures; when the headrest is retracted, the headrest and the backrest are in a back-to-back state, so that the headrest is attached to the back surface of the backrest.

2. The seat with adjustable headrest according to claim 1, wherein: sliding shafts extending outwards are arranged on two sides of the fixed seat, a sliding groove for accommodating the sliding shafts is arranged in the adjusting seat, the sliding shafts are inserted into the sliding grooves, and the adjusting seat is adjusted by sliding up and down so as to realize the adjustment of the height position of the headrest; the end part of the fixing seat, which is positioned between the sliding shafts, is provided with a positioning head in an arc-shaped protruding structure, the head end of the sliding groove is provided with a shape matched with the positioning head, and the head rest is embedded into the head end of the sliding groove to realize fixation when being unfolded and positioned at the highest position.

3. The seat with adjustable headrest according to claim 2, wherein: the adjusting seat is provided with a guide groove for accommodating the fixing seat, the two sliding grooves are positioned on the left side and the right side of the guide groove, the sliding grooves are communicated with the guide groove, and the fixing seat is embedded in the guide groove.

4. A seat with an adjustable headrest as claimed in claim 3, wherein: positioning blocks extending outwards are arranged on two sides of the fixed seat, and a clearance groove matched with the positioning blocks is arranged on two sides of the guide groove; the adjusting seat slides up to a required position and then rotates forwards along the sliding shaft to enable the headrest to turn over to the front side and the positioning block is embedded into the sliding groove through the clearance groove, so that the headrest is fixed.

5. The seat with adjustable headrest according to claim 4, wherein: the headrest is provided with a bent connector, and is fixedly connected with the adjusting seat through the connector; the arc of the connector enables a gap with the width larger than the thickness of the upper part of the backrest to be arranged between the headrest and the adjusting seat, and the upper part of the backrest is embedded into the gap when the headrest descends after being unfolded.

6. The seat with adjustable headrest according to claim 4, wherein: the fixing seat is provided with a mounting hole, a positioning marble with a spring is arranged in the mounting hole, a plurality of arc-shaped positioning holes are longitudinally arranged in a guide groove of the adjusting seat, and the headrest is clamped into any positioning hole through the positioning marble after being unfolded, so that the headrest is positioned.

7. The seat with adjustable headrest according to claim 1, wherein: the foot rest is arranged on the bottom surface of the seat of the chair body through the telescopic rod and is folded and stuck on the bottom surface of the seat of the chair body.

8. The seat with adjustable headrest according to claim 7, wherein: the front end of the telescopic rod is fixed with a fixed head, the fixed head is internally penetrated with a fixed rod, two foot rests are arranged on the fixed rod and are respectively arranged at two sides of the fixed head.

9. The seat with adjustable headrest according to claim 8, wherein: the fixed rod is rotatably arranged in the fixed head, two sides of the fixed head are provided with rotary grooves, and stop blocks are arranged in the rotary grooves; a protruding limiting block is arranged on one side of the foot rest, which faces the fixed head, and is embedded into the rotary groove, and the foot rest is abutted against the limiting block through the limiting block after being completely unfolded so as to realize positioning of the unfolding state of the foot rest.

10. The seat with adjustable headrest according to claim 8, wherein: the foot rest is provided with a jack corresponding to the fixed rod, and a locating piece is arranged in the jack; the end of the fixed rod is provided with an inserting port matched with the locating plate, and the fixed rod is inserted into the inserting port through the locating plate after being inserted into the inserting hole, so that the two foot rests form a structure capable of synchronously rotating.