CN220024580U - Structure capable of realizing simple folding and storage of seat headrest - Google Patents

Abstract

The utility model relates to a structure capable of simply folding and storing a seat headrest, which comprises a rotary connecting seat arranged on a seat back, wherein a headrest component is rotatably connected with the rotary connecting seat; the headrest component is provided with a through bolt hole, and the rotary connecting seat is provided with a bolt groove; in the state that the headrest part rotates to the upper part of the rotating connecting seat, the bolt hole is correspondingly communicated with the bolt groove, and a fixed adjusting bolt is penetrated into the bolt hole; and a locking mechanism for locking the fixed adjustment bolt. The utility model discloses a seat back height is increased or is reduced in physics in order to satisfy the demand of not co-altitude crowd, realizes the ergonomic design of chair to headrest part supports steadily under the locking mechanical system assurance user state, and can fold fast when not needing the headrest function and accomodate behind the seat, simple structure, accomodate expansion process operation swiftly.

Description

Structure capable of realizing simple folding and storage of seat headrest

Technical Field

The utility model belongs to the technical field of seats, and particularly relates to a structure capable of simply folding and storing a seat headrest.

Background

At present, seats such as noon break chairs, noon break reclining chairs, office seats and the like for students are provided with a headrest on the chair back for a user to lean against. However, the headrest in the prior art scheme can not be folded and stored through a simple structure and operation, so that the requirements of users with different heights cannot be met, and the comfort and convenience are poor.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the utility model provides a can realize simple and easy folding structure of accomodating seat headrest, solve current seat headrest can't or be inconvenient for folding accomodate, lead to the problem that travelling comfort and convenience are not good enough of use, realize satisfying different height crowd's demand, structure and easy operation simultaneously, and guarantee that the headrest can steady rest under the user state.

According to the technical scheme of the utility model, the utility model provides a structure capable of simply folding and storing a seat headrest, which comprises a rotary connecting seat arranged on a seat back, wherein a headrest component is rotationally connected with the rotary connecting seat; the headrest component is provided with a through bolt hole, and the rotary connecting seat is provided with a bolt groove; in the state that the headrest part rotates to the upper part of the rotating connecting seat, the bolt hole is correspondingly communicated with the bolt groove, and a fixed adjusting bolt is penetrated into the bolt hole; and a locking mechanism for locking the fixed adjustment bolt.

In a preferred embodiment, the locking mechanism comprises a locking slide block, one side of the locking slide block is abutted against the fixed adjusting bolt, and the other side of the locking slide block is connected with the headrest component through a spring.

Further, a mounting hole is formed in the side face of the headrest component, and the mounting hole is communicated with the bolt hole; the locking slider sets up in the mounting hole, and the locking slider is connected with fixed cover piece through the spring, and fixed cover piece covers to close and sets up on the mounting hole.

Preferably, the fixed adjusting plug pin is provided with a rack, the locking sliding block is provided with locking teeth, the rack is opposite to the locking teeth, and the rack is matched with the locking teeth in shape.

Preferably, the tooth forms of the rack and the locking tooth are semicircular.

Preferably, a hollow groove is formed at one end of the rack through the fixed adjusting bolt; in the state that the fixed adjusting bolt is positioned outside the bolt groove, the locking teeth of the locking slide block are positioned in the empty groove.

Preferably, the rotary connecting seat is connected with the headrest component through a rotary pin shaft to form a pivot structure.

Preferably, the swivel connection mount is provided at the rear of the seat back.

Preferably, the rotary connecting seat comprises connecting lug plates positioned at two sides and a connecting block positioned in the middle; the lower part of the headrest part is provided with two connecting rods which extend downwards; the connecting rod is positioned between the connecting lug plate and the connecting block, and the connecting rod, the connecting lug plate and the connecting block are provided with shaft holes and penetrate into the rotating pin shafts; the bolt hole is located between two connecting rods, and the bolt groove is located on the connecting block.

Preferably, the end of the headrest component far away from the rotary connecting seat is a headrest body and is arranged in a forward inclined extending way.

Compared with the prior art, the utility model has the following beneficial technical effects:

1. the structure capable of simply folding and accommodating the seat headrest adopts the rotatable headrest component, is fixed and unlocked in a bolt mode, and has the locking mechanism to ensure that the headrest component is stably supported and cannot be folded in a use state. Thereby realizing that the height of the backrest of the chair is physically increased or reduced to meet the requirements of people with different heights, and realizing the ergonomic design of the chair.

2. The structure capable of realizing simple folding and storage of the seat headrest can be arranged on the existing seat, so that the seat with the folding and storage headrest function is formed, the seat can be quickly folded and stored behind the seat when the headrest function is not needed, the structure is simple, the storage and unfolding process is rapid to operate, the practical value is very high, the market performance price ratio is high, and the higher market popularization rate can be obtained.

Drawings

Fig. 1 is a perspective assembly view of an embodiment of the present utility model.

Fig. 2 is a perspective assembly view of the embodiment of fig. 1 at another angle.

Fig. 3 is a partially cross-sectional schematic illustration of the use of the headrest in the embodiment illustrated in fig. 1.

Fig. 4 is a schematic view of the structure shown in fig. 3 in an unlocked state of the fixed adjustment latch.

Fig. 5 is a partially sectional view schematically showing a folded and housed state of the headrest in the embodiment shown in fig. 1.

Fig. 6 is a schematic perspective view of a seat with a headrest according to an embodiment of the present utility model.

Fig. 7 is a schematic view of another angular perspective of the seat of fig. 6.

Reference numerals in the drawings illustrate:

1. rotating the connecting seat;

2. a headrest member;

3. a bolt hole;

4. a latch slot;

5. fixing and adjusting the bolt;

6. locking the sliding block;

7. a spring;

8. a mounting hole;

9. fixing the cover plate;

10. locking a screw;

11. a rack;

12. locking teeth;

13. a hollow groove;

14. rotating the pin shaft;

15. connecting an ear plate;

16. a connecting block;

17. a connecting rod;

A. a chair back.

Detailed Description

The utility model provides a structure capable of simply folding and storing a seat headrest, which solves the problem that the existing seat headrest cannot be folded or is inconvenient to fold and store, so that the comfort and convenience of use are poor, meets the requirements of people with different heights, is simple in structure and operation, and ensures that the headrest can be stably supported in a use state.

Referring to fig. 1 and 2, a structure for simply folding and storing a headrest of a seat according to an embodiment of the present utility model includes a rotating connection seat 1 disposed on a seat back a, wherein the rotating connection seat 1 is rotatably connected with a headrest member 2, so that the headrest member 2 can be turned up to a use position and folded and stored when not in use. The headrest part 2 is provided with a through bolt hole 3, the rotary connecting seat 1 is provided with a bolt groove 4, the bolt hole 3 is correspondingly communicated with the bolt groove 4 under the condition that the headrest part 2 rotates to the position above the rotary connecting seat 1 (namely, the headrest is in a use state), and a hard fixed adjusting bolt 5 is penetrated into the bolt hole, so that the headrest part 2 and the rotary connecting seat 1 cannot be bent and folded, and enough supporting force is provided to ensure that the headrest part 2 cannot rotate when a user leans. The locking mechanism for locking the fixed adjusting bolt 5 is further included, so that the fixed adjusting bolt 5 is ensured to be fixed in position and cannot be separated from the bolt groove 4 due to shaking or misoperation and the like.

In a specific preferred embodiment, the locking mechanism comprises a locking slide block 6, one side of the locking slide block 6 is abutted against the side surface of the fixed adjusting bolt 5, the fixed adjusting bolt 5 is tightly propped against the inner wall of the bolt hole 3, and the other side of the locking slide block 6 is connected with the headrest component 2 through a spring 7, so that automatic propping is realized by utilizing the elasticity of the spring 7. Further, a mounting hole 8 is formed in the side face of the headrest member 2, the shape of the mounting hole 8 is matched with that of the locking slide block 6, and the mounting hole 8 is communicated with the bolt hole 3. The locking slide block 6 is arranged in the mounting hole 8 and can freely move or slide in the mounting hole, the locking slide block 6 is connected with the fixed cover plate 9 through the spring 7, and the fixed cover plate 9 covers the outward opening on the mounting hole 8 to seal the opening. For example, the fixing cover 9 is connected to the side surfaces of the headrest member 2 at both ends or four corners thereof by locking screws 10.

More preferably, referring to fig. 3 to 5, the fixed adjustment latch 5 has a rack 11 thereon, the locking slider 6 has locking teeth 12 thereon, the rack 11 is disposed opposite to the locking teeth 12, and the rack 11 is matched in shape with the locking teeth 12, thereby achieving locking by engagement between the teeth. Preferably, for example, the tooth profile of the rack 11 and of the locking tooth 12 are semicircular, the edges of which are more rounded, relative to for example a saw tooth shape, so as to be able to move under smaller forces, while avoiding breakage of the teeth; of course, the staggered engagement of the row of semicircular teeth of the rack 11 with the row of semicircular teeth of the locking tooth 12 provides a locking force of sufficient magnitude to ensure that the fixed adjustment pin 5 is not moved under unintended touch forces.

It is further preferred that the fixed adjusting pin 5 is provided with a recess 13 at one end of the rack 11, i.e. a smooth-bottomed section of groove without teeth. As shown in fig. 4, in a state (unlocked state) in which the fixed adjustment pin 5 is located outside the pin groove 4, the locking teeth 12 of the locking slider 6 are located in the empty groove 13, so that the fixed adjustment pin 5 is not easily pulled out from the headrest member 2 completely, and the problem that the fixed adjustment pin 5 falls or is lost is avoided. When locking is carried out, under the action force of pressing down, the arc of the semicircular tooth below the rack 11 is in conflict with the arc of the semicircular tooth above the locking tooth 12, so that the locking sliding block 6 moves rightwards, the spring 7 is compressed, and the fixed adjusting bolt 5 can move downwards, and finally the state shown in fig. 3 is reached. In addition, the upper end of the fixed adjusting bolt 5 preferably has a hand-held part, for example, in the shape of a flat plate, a column or a ring, etc., which is convenient to operate, and at the same time the hand-held part can play a role of identification, for example, when the bottom of the hand-held part contacts the upper edge of the bolt hole 3, it is indicated that the fixed adjusting bolt 5 is already installed in place and a long enough section is inserted into the bolt slot 4.

It is conceivable that in other embodiments, the locking mechanism does not have a rack 11, locking teeth 12 structure, and only relies on the friction of the material to achieve tightening, and in combination with fixing the dead weight of the adjusting bolt 5, it is also prevented from moving upwards out of the way; or the bolt mode is adopted to realize the tight jacking and fixing of the fixed adjusting bolt 5; alternatively, the locking mechanism adopts a damping structure; and the like, can be embodied in a specific structure capable of achieving similar effects.

In some embodiments, the swivel connection mount 1 is provided at the upper end or side of the seat back a. In the preferred embodiment, as shown in fig. 1, 2, 6 and 7, the swivel connection seat 1 is provided at the rear of the seat back a. The rotary connecting seat 1 is connected with the headrest part 2 through a rotary pin shaft 14 to form a pivot structure. Further specifically, the rotary connecting seat 1 comprises connecting lugs 15 positioned on two sides and a connecting block 16 positioned in the middle, the lower part of the headrest component 2 is provided with two connecting rods 17 which extend downwards, the connecting rods 17 are positioned between the connecting lugs 15 and the connecting block 16, the connecting rods 17, the connecting lugs 15 and the connecting block 16 are provided with shaft holes and penetrate into the rotary pin shafts 14, so that the headrest component 2 is limited during pivot connection, the headrest component 2 basically cannot shake left and right, and a stable headrest effect is provided. The bolt hole 3 is located between two connecting rods 17, and the bolt groove 4 is located on the connecting block 16, namely, the locking mechanism is located in the middle of the rotary connecting structure, and the locking effect is good. In the folded headrest storage state, as shown in fig. 5, the headrest member 2 is positioned behind the seat back a, and no additional space occupation is generated around the seat, and no collision is likely to occur.

Referring to fig. 3, 6 and 7, the end of the headrest member 2 away from the rotational connection seat 1 is a headrest body, for example, having a cushion structure, and the headrest body is disposed in a forward inclined extending manner. So that in a state where the headrest member 2 is rotated to above the rotation connection seat 1 (headrest use state), the headrest body is positioned at the front side of the seat back a, forming an ergonomic design.

In summary, the structure capable of simply folding and storing the seat headrest of the utility model adopts the rotatable headrest component 2 and fixes and unlocks the headrest component in a bolt manner, and the locking mechanism ensures that the headrest component 2 cannot be folded in a use state, provides a stable supporting effect, and meets the requirements of people with different heights. During the use, utilize the structure complementary relation between the semicircle tooth of fixed regulation bolt 5 and the semicircle tooth of locking slider 6, promote locking slider 6 through spring 7 to realize the interlock of fixed regulation bolt 5 and locking slider 6 and tightly close, it is fixed to cooperate fixed regulation bolt 5 and the bolt groove 4 of seat back A, realize the fixing of headrest. When the headrest function is not needed, the folding and storage can be fast carried out: the fixed adjusting bolt 5 is pulled upwards, the spring 7 is compressed under the mutual pushing action force of the semicircular teeth, the locking sliding block 6 is moved, the semicircular teeth are meshed and separated, the fixed adjusting bolt 5 can be pulled out of the bolt groove 4 of the chair back A, then the headrest part 2 is rotated through the rotating shaft pin 14, and the headrest part is folded to the back of the chair back A to realize the containing function. And can install the rotation connecting seat 1 on current seat through modes such as screw or bonding to repacking ordinary seat into the seat that has the headrest function of collapsible accomodating, use in a flexible way, simple structure, accomodate expansion process operation swiftly, have high practical value and marketization price/performance ratio.

Claims (10)

1. The structure capable of realizing simple folding and containing of the seat headrest is characterized by comprising a rotary connecting seat (1) arranged on a seat back (A), wherein the rotary connecting seat (1) is rotationally connected with a headrest part (2); the headrest component (2) is provided with a through bolt hole (3), and the rotary connecting seat (1) is provided with a bolt groove (4); in a state that the headrest component (2) rotates to the upper part of the rotating connecting seat (1), the bolt hole (3) is correspondingly communicated with the bolt groove (4) and is penetrated with a fixed adjusting bolt (5); and the locking mechanism is used for locking the fixed adjusting bolt (5).

2. The structure for realizing simple folding and containing of the headrest of the seat according to claim 1, wherein the locking mechanism comprises a locking slide block (6), one side of the locking slide block (6) is abutted against the fixed adjusting bolt (5), and the other side of the locking slide block (6) is connected with the headrest component (2) through a spring (7).

3. The structure for realizing simple folding and storing of the seat headrest according to claim 2, characterized in that a mounting hole (8) is provided on the side surface of the headrest member (2), the mounting hole (8) being communicated with the latch hole (3); the locking slide block (6) is arranged in the mounting hole (8), the locking slide block (6) is connected with the fixed cover plate (9) through the spring (7), and the fixed cover plate (9) is arranged on the mounting hole (8) in a covering mode.

4. The structure capable of simply folding and storing the seat headrest according to claim 2, wherein the fixed adjusting bolt (5) is provided with a rack (11), the locking slide block (6) is provided with locking teeth (12), the rack (11) is opposite to the locking teeth (12), and the rack (11) is matched with the locking teeth (12) in shape.

5. The structure for realizing the simple folding and storing seat headrest according to claim 4, wherein the tooth shapes of the rack (11) and the locking tooth (12) are semicircular.

6. The structure for realizing simple folding and containing of the seat headrest according to claim 4, wherein the fixed adjusting bolt (5) is provided with a hollow groove (13) at one end of the rack (11); in the state that the fixed adjusting bolt (5) is positioned outside the bolt groove (4), the locking teeth (12) of the locking sliding block (6) are positioned in the empty groove (13).

7. The structure for a headrest for a seat capable of being folded and stored simply according to any one of claims 1-6, characterized in that the pivot structure is formed by the connection between the pivot connection base (1) and the headrest member (2) via a pivot pin (14).

8. The structure for enabling easy folding and stowing of a headrest of a seat according to claim 7, characterized in that said swivel connection seat (1) is provided at the rear of said seat back (a).

9. The structure for realizing the simple folding and containing seat headrest according to claim 8, wherein the rotary connecting seat (1) comprises connecting lugs (15) positioned at two sides and a connecting block (16) positioned at the middle part; the lower part of the headrest component (2) is provided with two connecting rods (17) which extend downwards; the connecting rod (17) is positioned between the connecting lug plate (15) and the connecting block (16), and the connecting rod (17), the connecting lug plate (15) and the connecting block (16) are provided with shaft holes and penetrate into the rotating pin shaft (14); the bolt hole (3) is positioned between the two connecting rods (17), and the bolt groove (4) is positioned on the connecting block (16).

10. The structure for realizing the simple folding and storing seat headrest according to claim 8, wherein one end of the headrest component (2) far away from the rotating connecting seat (1) is a headrest body and is arranged in a forward inclined extending way.