A headrest key for a study chair that can be folded down and easily stored

Abstract

The utility model discloses a headrest key of a study chair that can be flipped down and conveniently stored, and relates to the technical field related to study chairs, including a backrest, the outer wall of the backrest is movably connected with a special-shaped support rod, the top of the special-shaped support rod is fixedly installed with a symmetrically distributed fixing piece, the outer wall of the fixing piece is fixedly installed with a fixing block, a rotating shaft is rotatably connected between the fixing blocks, a first supporting piece is fixedly installed on the upper part of the rotating shaft, a second supporting piece is fixedly installed on the lower part of the rotating shaft, and the first supporting piece is hingedly fixed to the second supporting piece by setting a hinge chain. The headrest key of the study chair that can be flipped down and conveniently stored runs through the first supporting piece and the second supporting piece through the rotating shaft, and the first supporting piece and the second supporting piece are movably fixed by a hinge chain, which is convenient for rotating the first supporting piece and the second supporting piece, and convenient for folding and storing, and then convenient for flipping down and folding the first headrest and the second headrest for storage, and is flexible and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field related to learning chairs, in particular to a headrest key of a learning chair which can be folded down and conveniently stored. Background Art

[0002] A study chair is an essential tool for children to study. Most of the study chairs on the market can be adjusted in height, sitting posture and comfort to help children achieve efficient learning results to the greatest extent. Therefore, there is an urgent need for a study chair with a headrest button that can be folded down and easily stored.

[0003] Currently, it is inconvenient to fold the headrest of the study chair, and it is inconvenient to adjust the height and angle, and the use of the study chair is not flexible enough. Utility Model Content

[0004] The utility model aims to provide a study chair with a headrest key that can be folded down and easily stored, so as to solve the problem that the study chair proposed in the above background technology is inconvenient to fold the headrest, inconvenient to adjust the height and angle, and not flexible enough to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a study chair with a headrest that can be folded down and easily stored, comprising a backrest, the outer wall of the backrest is movably connected with a special-shaped support rod, the top of the special-shaped support rod is fixedly installed with symmetrically distributed fixing parts, the fixing parts are connected and fixed to the backrest by setting mounting bolts, the outer wall of the fixing part is fixedly installed with a fixing block, the fixing blocks are rotatably connected with a rotating shaft, the upper part of the rotating shaft is fixedly installed with a first support member, the lower part of the rotating shaft is fixedly installed with a second support member, the first support member is hingedly fixed to the second support member by setting a hinge chain.

[0006] Preferably, a first headrest is fixedly mounted on the top of the first support member, and a second headrest is fixedly mounted on the bottom of the second support member.

[0007] Preferably, a seat cushion is fixedly provided at the bottom of the backrest, a telescopic beam is movably connected to the bottom of the seat cushion, a symmetrically distributed telescopic gas rod is movably connected to the bottom of the seat cushion, and a regulating valve is movably mounted at one end of the telescopic beam.

[0008] Preferably, a connecting crossbeam is fixedly connected between the telescopic gas rods, and the connecting crossbeam is connected and fixed to the telescopic gas rods by setting fastening bolts.

[0009] Preferably, a balancing support leg is fixedly mounted on the bottom end of the telescopic gas rod, and anti-slip foot covers are movably mounted on both ends of the balancing support leg.

[0010] Preferably, the other end of the telescopic crossbeam is internally rotatably connected with a rotating pin, and the external part of the rotating pin is movably mounted with auxiliary support pads that are symmetrically distributed.

[0011] Preferably, a special-shaped support rod is fixedly connected to the top of one end of the telescopic beam.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The headrest key of the study chair can be folded down and conveniently stored. The rotating shaft is conveniently fixed by a fixing block. The rotating shaft passes through the first support member and the second support member. The first support member and the second support member are movably fixed by a hinge chain, which is convenient for rotating the first support member and the second support member, and convenient for folding and storing the first support member and the second support member, thereby facilitating the folding down and folding storage of the first headrest and the second headrest, and is flexible and convenient to use;

[0014] 2. The study chair has a headrest button that can be folded down and easily stored. It is connected and fixed to the special-shaped support rod through a telescopic crossbeam, which is convenient for providing support for the backrest and the seat cushion. The telescopic crossbeam can easily drive the auxiliary support pad to be extended and retracted, and the length of the auxiliary support pad can be controlled according to use. The auxiliary support pad can be driven to rotate by rotating the pin shaft, so that the auxiliary support pad can be extended and folded, and the angle can be flexibly adjusted. The telescopic gas rod can be adjusted to rise and fall through the regulating valve, and the height of the seat cushion can be adjusted according to use, thereby improving the actual practical effect. The telescopic gas rod can be connected through the connecting crossbeam, and the stability of the overall support can be improved through the balancing support legs. The non-slip foot covers can prevent the balancing support legs from slipping, which helps to improve the stability of the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0017] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0018] Figure 4 It is a side structural schematic diagram of the utility model.

[0019] In the figure: 1. backrest; 2. special-shaped support rod; 3. fixing piece; 4. mounting bolt; 5. fixing block; 6. rotating shaft; 7. first support member; 8. second support member; 9. hinge chain; 10. first headrest; 11. second headrest; 12. seat cushion; 13. telescopic beam; 14. telescopic gas rod; 15. regulating valve; 16. connecting beam; 17. fastening bolt; 18. balancing support leg; 19. non-slip foot cover; 20. rotating pin; 21. auxiliary support pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution: a headrest key of a study chair that can be folded down and conveniently stored, comprising a backrest 1, an outer wall of the backrest 1 is movably connected with a special-shaped support rod 2, the top of the special-shaped support rod 2 is fixedly installed with a symmetrically distributed fixing member 3, the fixing member 3 is connected and fixed to the backrest 1 by setting a mounting bolt 4, a fixing block 5 is fixedly installed on the outer wall of the fixing member 3, a rotating shaft 6 is rotatably connected between the fixing blocks 5, a first supporting member 7 is fixedly installed on the upper part of the rotating shaft 6, a second supporting member 8 is fixedly installed on the lower part of the rotating shaft 6, the first supporting member 7 is hingedly fixed to the second supporting member 8 by setting a hinge chain 9, and the top of the first supporting member 7 is fixedly installed with a second supporting member 8. A headrest 10, a second headrest 11 is fixedly installed at the bottom of the second support member 8, the backrest 1 provides supporting force through the special-shaped support rod 2, the special-shaped support rod 2 is connected and fixed to the backrest 1 through the top fixing member 3 with a fastening bolt 17, and the fixing block 5 is convenient for movably fixing the rotating shaft 6, the rotating shaft 6 passes through the first support member 7 and the second support member 8, the first support member 7 and the second support member 8 are movably fixed by the hinge chain 9, it is convenient to rotate the first support member 7 and the second support member 8, and it is convenient to fold and store the first support member 7 and the second support member 8, and then it is convenient to flip down and fold the first headrest 10 and the second headrest 11 for storage, which is flexible and convenient to use.

[0022] A seat cushion 12 is fixedly provided at the bottom of the backrest 1, a telescopic crossbeam 13 is movably connected to the bottom of the seat cushion 12, a symmetrically distributed telescopic gas rod 14 is movably connected to the bottom of the seat cushion 12, a regulating valve 15 is movably installed at one end of the telescopic crossbeam 13, a connecting crossbeam 16 is fixedly connected between the telescopic gas rods 14, the connecting crossbeam 16 is connected and fixed to the telescopic gas rods 14 by setting fastening bolts 17, a balancing support leg 18 is fixedly installed at the bottom end of the telescopic gas rod 14, and anti-slip foot covers 19 are movably installed at both ends of the balancing support leg 18, the other end of the telescopic crossbeam 13 is internally rotatably connected to a rotating pin 20, and the external part of the rotating pin 20 is movably installed with auxiliary support pads 21 symmetrically distributed, and a special-shaped support rod 2 is fixedly connected to the top of one end of the telescopic crossbeam 13, through The telescopic crossbeam 13 is connected and fixed to the special-shaped support rod 2, so as to provide support force for the backrest 1 and the seat cushion 12. The telescopic crossbeam 13 can drive the auxiliary support pad 21 to be telescopic, so as to control the length of the auxiliary support pad 21 according to use. The auxiliary support pad 21 can be driven to rotate by rotating the pin shaft 20, so as to telescope and fold the auxiliary support pad 21, and the angle can be flexibly controlled. The lifting and lowering of the telescopic gas rod 14 can be adjusted by the regulating valve 15, so as to adjust the height of the seat cushion 12 according to use, thereby improving the actual practical effect. The telescopic gas rod 14 can be connected by connecting the crossbeam 16, and the stability of the overall support can be improved by the balancing support legs 18. The anti-slip foot covers 19 can prevent the balancing support legs 18 from slipping, which helps to improve the stability of the support.

[0023] Working principle: first, the fixing block 5 is used to movably fix the rotating shaft 6, and the rotating shaft 6 passes through the first support member 7 and the second support member 8. The first support member 7 and the second support member 8 are movably fixed through the hinge chain 9, which is convenient for rotating the first support member 7 and the second support member 8, and convenient for folding and storing the first support member 7 and the second support member 8, and then convenient for turning down and folding the first headrest 10 and the second headrest 11. It is flexible and convenient to use, and is connected and fixed with the special-shaped support rod 2 through the telescopic crossbeam 13, which is convenient for providing support force to the backrest 1 and the seat cushion 12. The telescopic crossbeam 13 is convenient for driving the auxiliary support pad 21 to be telescopic, which is convenient according to the use. By controlling the length of the auxiliary support pad 21, the auxiliary support pad 21 can be driven to rotate by rotating the pin shaft 20, so that the auxiliary support pad 21 can be telescoped and folded, and the angle can be flexibly adjusted. The telescopic gas rod 14 can be adjusted by adjusting the valve 15, so that the height of the seat cushion 12 can be adjusted according to use, thereby improving the actual practical effect. The telescopic gas rod 14 can be connected by connecting the cross beam 16, and the stability of the overall support can be improved by using the balancing support legs 18. The anti-slip foot covers 19 can prevent the balancing support legs 18 from slipping, which helps to improve the stability of the support. In this way, the operation process of the headrest key of a learning chair that can be folded down and easily stored is completed.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A study chair with a headrest key that can be folded down and easily stored, characterized in that: The invention comprises a backrest (1), wherein the outer wall of the backrest (1) is movably connected with a special-shaped support rod (2), the top of the special-shaped support rod (2) is fixedly installed with a symmetrically distributed fixing member (3), the fixing member (3) is connected and fixed to the backrest (1) by means of a mounting bolt (4), a fixing block (5) is fixedly installed on the outer wall of the fixing member (3), a rotating shaft (6) is rotatably connected between the fixing blocks (5), a first supporting member (7) is fixedly installed on the upper part of the rotating shaft (6), a second supporting member (8) is fixedly installed on the lower part of the rotating shaft (6), and the first supporting member (7) is hingedly fixed to the second supporting member (8) by means of a hinge chain (9).

2. The headrest key of a study chair that can be folded down and easily stored according to claim 1, characterized in that: A first headrest (10) is fixedly mounted on the top of the first support member (7), and a second headrest (11) is fixedly mounted on the bottom of the second support member (8).

3. The headrest key of a study chair that can be folded down and easily stored according to claim 1 is characterized in that: A seat cushion (12) is fixedly arranged at the bottom of the backrest (1), a telescopic crossbeam (13) is movably connected to the bottom of the seat cushion (12), a symmetrically distributed telescopic gas rod (14) is movably connected to the bottom of the seat cushion (12), and a regulating valve (15) is movably installed at one end of the telescopic crossbeam (13).

4. The headrest key of a study chair that can be folded down and easily stored according to claim 3 is characterized by: A connecting crossbeam (16) is fixedly connected between the telescopic gas rods (14), and the connecting crossbeam (16) is connected and fixed to the telescopic gas rods (14) by means of fastening bolts (17).

5. The headrest key of a study chair that can be folded down and conveniently stored according to claim 3 is characterized by: A balancing support leg (18) is fixedly mounted on the bottom end of the telescopic gas rod (14), and anti-slip foot covers (19) are movably mounted on both ends of the balancing support leg (18).

6. The headrest key of a study chair that can be folded down and easily stored according to claim 3 is characterized by: The other end of the telescopic crossbeam (13) is internally rotatably connected to a rotating pin shaft (20), and the external part of the rotating pin shaft (20) is movably mounted with auxiliary support pads (21) that are symmetrically distributed.

7. The headrest key of a study chair that can be folded down and easily stored according to claim 3 is characterized by: A special-shaped support rod (2) is fixedly connected to the top of one end of the telescopic crossbeam (13).

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