Foldable deck chair capable of being stably adjusted

Abstract

The technical scheme belongs to the technical field of reclining chairs, and particularly relates to a stably adjustable folding reclining chair which comprises a seat body, supporting legs movably arranged on the two opposite sides of the seat body and armrest parts, the seat body comprises a seat part and a chair back part, the chair back part is hinged to the rear side of the seat part to form a hinge point, and a positioning structure is arranged between the seat body and the supporting legs. The positioning structure comprises a clamping part arranged on the rear side of the supporting leg and a clamping and embedding part arranged on the base body, the clamping and embedding part and the hinge point are coaxially arranged, the clamping part is provided with a positioning groove for the clamping part to be embedded and matched, and the clamping part abuts against the side wall of the positioning groove to limit overturning of the base body and the supporting leg. The seat body is matched with the supporting legs to be folded; the pressure applied by the sitting posture of a human body abuts against the side walls of the positioning grooves through the clamping parts on the two sides and is transmitted to the supporting legs provided with the clamping and embedding parts, stable supporting is formed, the seat body and the supporting legs cannot be driven to be folded when the chair back part is adjusted, and the using stability of the deck chair is improved.

Description

Technical Field

[0001] The present technical solution relates to the technical field of reclining chairs, and particularly refers to a foldable reclining chair that can be stably adjusted. Background Art

[0002] A reclining chair is a piece of furniture designed for rest and relaxation, usually having an inclined or adjustable backrest, an ergonomic seat, and soft armrests. Depending on ergonomics and comfort, it is designed to conform to the body curve of a person, and through its adjustment ability, it can achieve semi-reclining, semi-sitting, or fully lying flat use, thus obtaining a comfortable experience as a modern household item.

[0003] The adjustment of the existing reclining chair backrest is generally set at the armrest. There are adjustment gears provided under the armrest, and the rear end thereof is movably connected to the chair back. A user can adjust the comfortable angle they want. When the chair back is adjusted to different angles, especially a relatively inclined position, due to the characteristics of the connection between the adjustment gears under the armrest and the chair back, and the limitation of the folding function of the seat, it is prone to shaking, tilting, or even collapsing, resulting in poor overall stability of the seat, which needs to be improved. Summary of the Invention

[0004] The present technical solution provides a foldable reclining chair that can be stably adjusted in order to improve the problem of poor stability of a foldable seat with an armrest-adjustable chair back.

[0005] The purpose of the present technical solution is achieved as follows:

[0006] A foldable reclining chair that can be stably adjusted includes a seat body, support legs movably arranged on opposite sides of the seat body, and an armrest part. The seat body includes a seat portion and a chair back portion. The chair back portion is hinged to the rear side of the seat portion to form a hinge point. A positioning structure is provided between the seat body and the support legs. The positioning structure includes a locking part arranged at the rear side of the support legs and a clamping part arranged on the seat body. The clamping part is coaxially arranged with the hinge point. The locking part has a positioning groove for the locking part to be fitted into. The locking part abuts against the side wall of the positioning groove to limit the flipping of the seat body and the support legs. When the locking part disengages from the positioning groove, the seat body and the support legs can cooperate to be folded.

[0007] Through the above technical solution, when the adjustable folding deck chair is in normal use, the lower end of the backrest in the seat body is hinged to the rear end of the seat portion, and this hinged portion is a hinge point, enabling the backrest to be flipped relative to the seat portion to adjust different angles to meet different sitting and lying needs. Two support legs are movably installed on opposite sides of the seat body to form a stable support, and the height between the seat portion and the ground is adapted to the height of the legs in the human sitting position, and the height between the armrest portion and the seat portion is suitable for the arm support in the sitting position to ensure comfort. The locking portion fixed to the seat body is embedded in the positioning groove on the clamping portion, and the pressure exerted by the human sitting posture is applied through the locking portions on both sides against the side walls of the positioning groove and transmitted to the support leg provided with the clamping portion to form a stable support, so that the folding between the seat body and the support legs will not be driven when the backrest is adjusted, improving the stability of the deck chair during use.

[0008] Preferably, the support leg includes a front support leg and a rear support leg. The end of the front support leg is hinged to the end of the rear support leg. The middle of the front support leg is hinged to the seat portion, and the locking portion is provided at the rear side of the rear support leg.

[0009] The seat body is provided with a connecting rod. One end of the connecting rod is arranged on the locking portion, and the other end is hinged downward in the middle of the rear support leg.

[0010] Through the above technical solution, based on each support leg including two legs, the two support legs form four support points on the ground to stably support the overall use. The front support leg is hinged to the rear support leg, the front support leg is hinged to the seat portion, and the seat portion is hinged to the backrest, enabling these components to be flexibly flipped along the hinged positions to achieve folding. With the connecting rod taking the hinge point as the center of the circle, one end is provided with a locking portion, and with the distance from the locking portion to the hinged portion as the radius, the position of the locking portion is a point on this circumference, realizing that the connecting rod enables the locking portion to be on the trajectory where it can be fitted with the positioning groove along its rotation direction, so that it is not necessary to align the locking portion with the positioning groove when the seat body is opened, improving the convenience of use and the accuracy of fitting, and at the same time improving the stability of the seat and further enhancing the stability.

[0011] Preferably, the rear end of the armrest portion is hinged to the backrest. A locking structure is provided between the armrest portion and the support leg. The locking structure includes an adjusting member provided at the top of the front support leg and a locking member provided on the armrest portion.

[0012] The locking member has a locking portion. The locking portion is distributed along the length direction of the locking member, and a locking groove is left between two adjacent locking portions.

[0013] The adjusting member has an adjusting portion that slidably cooperates with the locking member, so that the adjusting portion is fitted with different locking grooves to adjust the rotation angle of the backrest.

[0014] Through the above technical solution, when it is necessary to adjust the rotation angle of the chair backrest, the locking member is lifted by pulling the armrest, and the adjusting portion originally fitted in the locking groove is released. The user can move the armrest back and forth, and the armrest rotates relative to the chair backrest, correspondingly driving the rotation of the chair backrest. Align the selected position of the locking groove with the adjusting portion and insert and fit them to limit the continuous rotation of the chair backrest. The chair backrest can be conveniently adjusted to different angles, enhancing the adjustment flexibility and practicality of the recliner.

[0015] Preferably, the locking member is provided with a limiting portion. There are two limiting portions, and the two limiting portions are respectively located on the opposite sides of the locking member along the relative sliding direction of the adjusting portion and the locking member. The width of the adjusting portion is greater than the distance between the two limiting portions.

[0016] Through the above technical solution, to ensure the relative sliding relationship between the locking member and the adjusting member, the cooperation of the two limiting portions of the locking member causes the adjusting portion to be restricted by the limiting portions during the sliding of the locking member, so as to maintain in a stable sliding track, limit the detachment between the adjusting member and the locking member when the armrest is pulled, and achieve a stable locking effect, improving the reliability of the adjustment.

[0017] Preferably, an installation groove is formed on the lower end surface of the armrest, and the locking member is installed in the installation groove, and the adjusting portion is located in the installation groove;

[0018] The armrest is further provided with two mounting plates, and the two mounting plates are arranged at the notch of the installation groove for restricting the detachment of the locking member.

[0019] Through the above technical solution, the locking member is installed in the installation groove, and the two mounting plates are arranged at the notch position of the installation groove to limit the moving range of the locking member in the installation groove, thereby preventing the locking member from accidentally falling off or loosening during use.

[0020] Preferably, a relief groove is formed on the mounting plate, and the two relief grooves are respectively formed on the opposite end faces of the two mounting plates, and the relief grooves on both sides are spliced and matched for the adjusting member to pass through.

[0021] Through the above technical solution, the relief grooves on the two mounting plates are opposite. When the two mounting plates are fixed at the notch position of the installation groove, the two relief grooves will be spliced and matched into a complete channel, and the adjusting member will slide smoothly along the direction of the relief groove to cooperate or unlock with the locking member, while ensuring the limiting effect of the mounting plate on the locking member.

[0022] Preferably, the opposite inner walls of the locking groove are inclined outward along the distribution direction, and the inclination direction is such that the width of the locking groove is flared toward the through end, and the shape of the adjusting portion is adapted to the locking groove.

[0023] Through the above technical solution, the flared opening of the locking groove faces the adjusting part, which facilitates the more accurate fitting of the adjusting part with the locking groove during the sliding process, making the adjustment process of the locking structure smoother and easier to operate.

[0024] The prominent and beneficial technical effects of this technical solution compared with the prior art are as follows:

[0025] 1. In this technical solution, by embedding the locking part provided on the seat body into the positioning groove on the clamping part, the pressure exerted by the human sitting posture is transmitted through the two-sided locking parts against the side walls of the positioning groove and then to the support leg provided with the clamping part, forming a stable support, so that the folding between the seat body and the support leg will not occur when adjusting the backrest of the chair, improving the stability of the reclining chair during use;

[0026] 2. In this technical solution, a locking structure is provided between the armrest part and the support leg, which includes an adjusting part provided at the top of the front support leg and a locking part provided on the armrest part. The locking part has several locking parts, and a locking groove is left between two adjacent locking parts. By aligning and inserting the selected position of the locking groove with the adjusting part, the backrest of the chair can be conveniently adjusted to different angles, enhancing the adjustment flexibility and practicality of the reclining chair. Description of the Drawings

[0027] Figure 1 is the overall structure schematic diagram of this embodiment;

[0028] Figure 2 is of this embodiment Figure 1 frame structure schematic diagram;

[0029] Figure 3 is of this embodiment Figure 2 another perspective schematic diagram;

[0030] Figure 4 is of this embodiment Figure 3 partial enlarged schematic diagram;

[0031] Figure 5 is the partial exploded structure schematic diagram of the mounting plate in the embodiment;

[0032] Figure 6 is the overall structure schematic diagram of the locking structure in the embodiment;

[0033] Figure 7 is of this embodiment Figure 2 another operating structure schematic diagram.

[0034] Reference numerals: 1, seat body; 11, seat portion; 12, backrest portion; 2, support legs; 21, front support leg; 22, rear support leg; 3, armrest portion; 4, positioning structure; 41, locking portion; 42, clamping portion; 5, positioning groove; 6, connecting rod; 7, locking structure; 71, adjusting member; 72, locking member; 8, locking portion; 9, locking groove; 10, adjusting portion; 13, limiting portion; 14, mounting groove; 15, mounting plate; 16, relief groove. Detailed implementation manners

[0035] The following further elaborates on the detailed implementation manners of the present technical solution with reference to the accompanying drawings.

[0036] Embodiment:

[0037] See Figure 1 , a foldable reclining chair that can be stably adjusted, including a seat body 1, support legs 2, and an armrest portion 3. The upper layer of the seat is covered with a seat cloth. Among them, the seat body 1 includes a seat portion 11 and a backrest portion 12. The seat portion 11 is located on the front side relative to the backrest portion 12, and its rear end is hinged to the lower end of the backrest portion 12. The hinge axis is arranged horizontally, and a hinge point is formed at the hinge position, which is set as hinge axis one; the width of the backrest portion 12 is adapted to that of the seat portion 11, and it slopes obliquely upward away from the seat portion 11 for the human back to rest against.

[0038] There are two sets of support legs 2 and armrest portions 3 respectively, which are arranged in one-to-one correspondence on opposite sides of the seat body 1. The rear end of each armrest portion 3 is hinged to one side of the backrest portion 12, set as hinge axis two, which is parallel to hinge axis one. The armrest portion 3 is movably arranged at the top of the support legs 2, and its front-back sliding relative to the support legs 2 drives the adjustment of the backrest portion 12.

[0039] See Figure 2 , each set of support legs 2 on each side includes a front support leg 21 and a rear support leg 22. The front support leg 21 slopes obliquely upward towards the rear support leg 22. The higher end of the front support leg 21 is hinged to the end of the rear support leg 22, set as hinge axis three, and the middle of the front support leg 21 is hinged to one side of the seat portion 11, set as hinge axis four. The rear support leg 22 slopes downward away from the higher end of the front support leg 21, so that the support legs 2 on both sides form four stable support points on the placement plane.

[0040] See Figure 5 and Figure 6 , a locking structure 7 is provided between each armrest portion 3 and the support legs 2, which includes an adjusting member 71 and a locking member 72. The adjusting member 71 is arranged on hinge axis three at the top of the front support leg 21 and the rear support leg 22, and it moves synchronously with the rotation of the rear support leg 22. The upper end of the adjusting member 71 has an adjusting portion 10 that slidably cooperates with the locking member 72, and its width is adapted to that of the locking member 72.

[0041] The armrest portion 3 is provided with a mounting groove 14, which is opened on the end surface of the armrest portion 3 close to the supporting leg 2. The locking member 72 is fixedly installed in the mounting groove 14. The locking member 72 has a locking portion 8, which is located on the side of the locking member 72 away from the bottom of the mounting groove 14, and is provided with a plurality of locking portions 8. The plurality of locking portions 8 are distributed along the length direction of the locking member 72. In this embodiment, two groups of symmetrically arranged multiple locking portions 8 are shown; a locking groove 9 is left between two adjacent locking portions 8 along the length direction of the locking member 72, and each locking groove 9 is inclined outwardly along the relative inner wall of the distribution direction, and the inclination direction guides the groove width of the locking groove 9 toward the through end The locking member 72 is also provided with two limiting portions 13, and the two limiting portions 13 correspond one-to-one to the two groups of locking portions 8, and are located on one side of the notch of the locking groove 9, so that the two limiting portions 13 are distributed on the opposite sides of the locking member 72 along the relative sliding direction of the adjusting portion 10 and the locking member 72, and the width of the adjusting portion 10 is greater than the spacing between the two limiting portions 13, so that the two ends of the adjusting portion 10 are respectively located between the locking portions 8 on both sides and their corresponding limiting portions 13, and the shape of the adjusting portion 10 is adapted to the locking groove 9, and the adjusting portion 10 is embedded in corresponding to different locking grooves 9 to adjust the rotation angle of the chair back 12.

[0042] The armrest portion 3 is also provided with two mounting plates 15, which are bolted to the notches of the mounting grooves 14. Each mounting plate 15 is provided with a clearance groove 16. The two clearance grooves 16 are correspondingly provided on the opposite end faces of the two mounting plates 15. The clearance grooves 16 on both sides are spliced and matched, so that when the adjustment portion 10 is embedded in the locking groove 9, the adjustment member 71 can pass through the clearance groove 16. By pulling up the armrest portion 3, the adjustment portion 10 and the locking groove 9 are disengaged at this time. The armrest portion 3 is slid forward and backward, and the chair back 12 is turned over in coordination. Different mounting grooves 14 positions can be aligned with the adjustment portion 10. After the required mounting grooves 14 are aligned with the adjustment portion 10 and fitted, the armrest portion 3 is restricted from sliding, and the adjustment of the chair back 12 is completed at this time.

[0043] A positioning structure 4 is provided between the seat body 1 and the support leg 2, which includes a locking portion 41 and an embedded portion 42. The locking portion 41 is provided at the rear side of the rear support leg 22, the embedded portion 42 is located at hinge axis one, and protrudes toward the position of the locking portion 41. The embedded portion 42 is coaxially arranged with the hinge point, the locking portion 41 has a positioning groove 5, the embedded portion 42 is embedded in the positioning groove 5, and abuts against the side wall of the positioning groove 5 to limit the flipping of the seat body 1 and the support leg 2. The seat body 1 is provided with a connecting rod 6, one end of which is provided at the locking portion 41, and the other end is hinged downward at the middle part of the rear support leg 22, and is provided as hinge axis five.

[0044] When the recliner needs to be folded as a whole, Figure 7As shown, unlock the locking structure 7, and the seat portion 11 rotates around the first hinge axis to approach the backrest portion 12. The armrest portion 3 rotates around the second hinge axis accordingly. The front end of the armrest portion 3 is lifted to approach the backrest portion 12 and slides backward relative to the adjusting member 71. The rotation of the seat portion 11 drives the front leg 21 through the fourth hinge axis, so that the front leg 21 rotates around the third hinge axis to approach. At the same time, the position of the first hinge axis of the seat portion 11 changes relative to the rear leg 22, driving the engaging portion 42 to disengage from the positioning groove 5, and the connecting rod 6 rotates around the fifth hinge axis accordingly.

[0045] The specific working process of this solution is as follows:

[0046] In this technical solution, the lower end of the backrest portion 12 in the seat body 1 is hinged to the rear end of the seat portion 11. This hinge is a hinge point, enabling the backrest portion 12 to be flipped relative to the seat portion 11 to adjust different angles to meet different sitting and lying needs. The two support legs 2 are movably installed on opposite sides of the seat body 1 to form a stable support, and the height between the seat portion 11 and the ground is adapted to the leg height in the human sitting posture. Moreover, the height between the armrest portion 3 and the seat portion 11 is suitable for arm support in the sitting posture to ensure comfort. The locking portion 41 fixed to the seat body 1 is inserted into the positioning groove 5 on the engaging portion 42. The pressure exerted by the human sitting posture is transmitted through the locking portions 41 on both sides against the side walls of the positioning groove 5 and then to the support leg 2 provided with this engaging portion 42, forming a stable support, so that the backrest portion 12 will not drive the folding between the seat body 1 and the support leg 2 during adjustment, improving the stability of the recliner during use.

[0047] The above shows and describes the basic principles, main features and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of this technical solution. Without departing from the spirit and scope of this technical solution, this technical solution will have various changes and improvements, and these changes and improvements all fall within the scope of this technical solution claimed. The scope of protection required by this technical solution is defined by the appended claims and their equivalents.

Claims

1. A foldable reclining chair with stable adjustment, comprising a seat body (1), support legs (2) movably arranged on opposite sides of the seat body (1), and an armrest part (3). The seat body (1) includes a seat part (11) and a backrest part (12). The backrest part (12) is hinged to the rear side of the seat part (11) to form a hinge point. It is characterized in that: A positioning structure (4) is provided between the seat body (1) and the support legs (2). The positioning structure (4) includes a locking part (41) arranged on the rear side of the support legs (2) and a clamping part (42) arranged on the seat body (1). The clamping part (42) is coaxially arranged with the hinge point. The locking part (41) has a positioning groove (5) for the locking part (41) to be fitted. The locking part (41) abuts against the side wall of the positioning groove (5) to limit the flipping of the seat body (1) and the support legs (2). When the locking part (41) disengages from the positioning groove (5), the seat body (1) and the support legs (2) can be folded in cooperation.

2. The adjustable folding deck chair according to claim 1, wherein: The support legs (2) include a front support leg (21) and a rear support leg (22). The end of the front support leg (21) is hinged to the end of the rear support leg (22). The middle of the front support leg (21) is hinged to the seat part (11). The locking part (41) is arranged on the rear side of the rear support leg (22); The seat body (1) is provided with a connecting rod (6). One end of the connecting rod (6) is arranged on the locking part (41), and the other end is hinged downward in the middle of the rear support leg (22).

3. A foldable reclining chair capable of stable adjustment according to claim 2, characterized in that: The rear end of the armrest part (3) is hinged to the backrest part (12). A locking structure (7) is provided between the armrest part (3) and the support legs (2). The locking structure (7) includes an adjusting part (71) arranged at the top of the front support leg (21) and a locking part (72) arranged on the armrest part (3); The locking part (72) has a locking part (8). The locking part (8) is distributed along the length direction of the locking part (72), and a locking groove (9) is left between two adjacent locking parts (8); The adjusting part (71) has an adjusting part (10) that slidably cooperates with the locking part (72), so that the adjusting part (10) is fitted into different locking grooves (9) for adjusting the rotation angle of the backrest part (12).

4. A foldable reclining chair capable of stable adjustment according to claim 3, characterized in that: The locking part (72) is provided with two limiting parts (13). The two limiting parts (13) are respectively located on opposite sides of the locking part (72) along the relative sliding direction of the adjusting part (10) and the locking part (72). The width of the adjusting part (10) is greater than the distance between the two limiting parts (13).

5. The adjustable folding deck chair according to claim 3, characterized in that: An installation groove (14) is formed on the lower end surface of the armrest part (3), and the locking part (72) is installed in the installation groove (14). The adjusting part (10) is located in the installation groove (14); The armrest part (3) is further provided with two mounting plates (15). The two mounting plates (15) are arranged at the notch of the installation groove (14) for preventing the locking part (72) from disengaging.

6. A foldable reclining chair that can be stably adjusted according to claim 5, characterized in that: The mounting plate (15) is provided with a relief groove (16), and the two relief grooves (16) are correspondingly provided on the opposite end faces of the two mounting plates (15). The relief grooves (16) on both sides are spliced and matched for the adjusting member (71) to pass through.

7. The adjustable folding deck chair according to claim 3, characterized in that: The opposite inner walls of the locking groove (9) along the distribution direction are inclined outward, and the inclination direction is such that the width of the locking groove (9) is flared toward the through end, and the shape of the adjusting portion (10) is adapted to the locking groove (9).

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