Self-adaptive adjustment leisure chair

Abstract

The utility model provides a self-adaptive adjusting leisure chair which comprises a cushion, a backrest arranged behind the cushion, supporting legs fixedly connected to the two sides of the lower surface of the cushion, first supporting rods fixedly connected to the two sides of the lower end of the backrest, a first rotating shaft arranged at the rear end of the cushion, and two first supporting rods rotationally connected with the first rotating shaft. A vertical groove is formed in one side of the cushion in a penetrating mode, a sliding block is arranged in the vertical groove, and the front end of the sliding block is fixedly connected with a waist pillow. According to the self-adaptive adjustment leisure chair provided by the utility model, through the waist cushion, the armrests are lifted, moved to proper positions and fixed, and when the backrest inclines backwards, the second gear rotates to drive the rack to move, so that the sliding block drives the waist cushion to move downwards; the sliding block drives the waist cushion to move downwards, so that a user does not need to manually adjust the waist cushion to a proper position when the backrest of the leisure chair is inclined backwards, the use is more convenient, and the use effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of leisure chairs, in particular to a self-adaptive adjustment leisure chair. Background Art

[0002] Chairs are items that people often need to use in daily life. They are convenient for people to rest anytime and anywhere and free their legs. Among them, leisure chairs are the most widely used. Whether it is a nap or a cool breeze, leisure chairs are people's best choice.

[0003] In the existing leisure chairs, the human body is supported by a backrest frame, a seat cushion frame, a foot frame and an armrest. For example, a leisure chair disclosed in Chinese patent CN211021772U includes a seat cushion frame, a front end of the seat cushion frame is hinged to the foot frame, and a rear end is hinged to the backrest frame, and the armrests are fixedly connected on both sides. The disadvantage of this method is that people who sit for a long time will place a lumbar support device on the leisure chair to reduce the body gravity borne by the lumbar spine. Therefore, when the angle of the chair backrest is adjusted, the angle of the user's body will also change, and the lumbar support device needs to be manually adjusted to the appropriate position. However, the existing leisure chairs with built-in lumbar support devices fix the lumbar support device on the backrest, and the position of the lumbar support device cannot be adjusted after the backrest is adjusted, which is very inconvenient and has some shortcomings in use.

[0004] Therefore, it is necessary to provide a new self-adaptive adjustment leisure chair to solve the above-mentioned technical problems. Summary of the Invention

[0005] The utility model provides a self-adapting and adjustable leisure chair, which solves the technical problem that the position of a lumbar support device needs to be adjusted manually.

[0006] In order to solve the above technical problems, the adaptively adjustable leisure chair provided by the utility model includes a seat cushion, a backrest is provided behind the seat cushion, support feet are fixedly connected to both sides of the lower surface of the seat cushion, first support rods are vertically fixedly connected to both sides of the lower end of the backrest, the rear end of the seat cushion is fixedly connected to the first rotating shaft along its width direction, the two first support rods are rotatably connected to the first rotating shaft, a vertical groove is opened through one side of the seat cushion, a sliding block is provided in the vertical groove which can slide up and down, a lumbar pillow is fixedly connected to the front end of the sliding block, and a driving mechanism for driving the sliding block to slide up and down is provided between the two first supports. When the backrest tilts backward, the lumbar pillow moves downward along the front side of the backrest.

[0007] Preferably, the driving mechanism includes a first gear and a second gear, the first gear is fixedly sleeved on the outer surface of the first rotating shaft, a second rotating shaft is rotatably provided between the two first support rods, the second gear is fixedly sleeved on the outer surface of the second rotating shaft and meshes with the first gear, the rear end of the sliding block is fixedly connected to a rack meshed with the second gear, one side of the two first support rods is fixedly connected to the second support rod, and the rack is slidably connected to the second support rod.

[0008] Preferably, a headrest is fixedly connected to the upper end of the backrest, a leg pad is hinged to the front section of the seat cushion, a third support rod is rotatably provided on the inner side of the two first support rods, the front end of the third support rod is hinged to the leg pad, and the leg pad opens forward when the backrest tilts backward.

[0009] Preferably, L-shaped armrests are provided on both sides of the seat cushion so as to be slidable left and right, and one end of the two armrests is hinged to the backrest.

[0010] Preferably, transverse sliding grooves are provided on both sides of the seat cushion, and the lower inner ends of the two armrests are fixedly connected with a first fixed block, and a plurality of L-shaped second fixed blocks are fixedly connected at intervals in the sliding grooves. The first fixed block can be engaged with the second fixed block, and the backrest is fixed when the first fixed block and the second fixed block are engaged with each other.

[0011] Preferably, an armrest pad is detachably provided on the upper surface of the armrest, and rubber pads are detachably provided on the lower ends of the support foot.

[0012] Compared with the related art, the adaptive adjustment leisure chair provided by the present invention has the following beneficial effects:

[0013] The utility model provides an adaptively adjustable leisure chair, which lifts the lower end of the armrest through a sliding block and a lumbar pad, moves it to a suitable position along the length direction of a horizontal sliding groove, and embeds the first fixing block with the adjacent second fixing block, so that the backrest is tilted backward and fixed at a specified angle. When the backrest is tilted backward, the second gear rotates around the first gear and drives the rack to move downward, so that the sliding block drives the lumbar pad to move downward together. When the backrest is tilted backward, the third support rod drives the leg pad to tilt forward, so that the lower end of the leg pad automatically rises. Since when the backrest is tilted backward, the second gear rotates around the first gear and the rack moves downward, so that the sliding block drives the lumbar pad to move downward together. The user does not need to manually adjust the lumbar pad to a suitable position when the backrest of the leisure chair is tilted backward, which is more convenient to use and has a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of the self-adaptive adjustment leisure chair provided by the present invention;

[0015] Figure 2for Figure 1 A schematic diagram of the rear view structure;

[0016] Figure 3 for Figure 1 Schematic diagram of the reclining chair shown;

[0017] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at A shown.

[0018] Numbers in the figure: 1. seat cushion, 2. backrest, 3. support foot, 4. first support rod, 5. first rotating shaft, 6. second rotating shaft, 7. first gear, 8. second gear, 9. sliding block, 10. lumbar pillow, 11. rack, 12. second support rod, 13. headrest, 14. leg pad, 15. third support rod, 16. armrest. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0020] Please refer to Figure 1-4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the self-adaptive adjustment leisure chair provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the rear view structure; Figure 3 for Figure 1 Schematic diagram of the reclining chair shown; Figure 4 for Figure 1 The enlarged structural diagram of point A is shown. Embodiment 1, the self-adaptive adjustment leisure chair comprises: comprising a seat cushion 1, a backrest 2 is provided at the rear of the seat cushion 1, support feet 3 are fixedly connected to both sides of the lower surface of the seat cushion 1, first support rods 4 are vertically fixedly connected to both sides of the lower end of the backrest 2, a first rotating shaft 5 is fixedly connected to the rear end of the seat cushion 1 along its width direction, two first support rods 4 are rotatably connected to the first rotating shaft 5, a vertical groove is formed through one side of the seat cushion 1, a sliding block 9 is provided in the vertical groove so as to be slidable up and down, a lumbar pillow 10 is fixedly connected to the front end of the sliding block 9, and a driving mechanism for driving the sliding block 9 to slide up and down is provided between the two first supports 4.

[0021] The two first support rods 4 and the backrest 2 form a whole. When the first support rods 4 are tilted, the backrest 2 and the first support rods always remain parallel. The horizontal plane of the upper end of the vertical groove is higher than the upper end of the armrest 16. When the backrest 2 tilts backward, the driving mechanism drives the sliding block 9 to move the lumbar pad 10 downward along the front side of the backrest 2.

[0022] Please refer to Figure 3 and 4The driving mechanism includes a first gear 7 and a second gear 8. The first gear is fixedly sleeved on the outer surface of the first rotating shaft 5. A second rotating shaft 6 is rotatably provided between the two first support rods 4. The second gear 8 is fixedly sleeved on the outer surface of the second rotating shaft 6 and meshes with the first gear 7. The rear end of the sliding block 9 is fixedly connected to a rack 11 that meshes with the second gear 8. A second support rod 12 is fixedly connected to one side of the two first support rods 4. The rack 11 is slidably connected to the second support rod 12.

[0023] When the backrest 2 tilts backward, the second gear 8 rotates around the first gear 7 and drives the rack 11 to move downward, so that the sliding block 9 drives the lumbar pad 10 to move downward together. The first gear 7 and the second gear 8 can be replaced with different sizes to speed up or slow down the speed of the rack lifting.

[0024] Please refer to Figure 1 and 3 The seat cushion 1 is provided with L-shaped armrests 16 on both sides thereof so as to be slidable left and right, and one end of the two armrests 16 is hinged to the backrest 2 .

[0025] When the backrest 2 is tilted backward, the upper surface of the armrest 16 is tilted backward and downward.

[0026] Please refer to Figure 3 , transverse sliding grooves are opened on both sides of the seat cushion 1, and the lower inner ends of the two armrests 16 are fixedly connected with first fixing blocks, and a plurality of L-shaped second fixing blocks are fixedly connected at intervals in the sliding grooves.

[0027] The first fixing block can be locked with the second fixing block, and the backrest 2 is fixed when the first fixing block and the second fixing block are locked with each other.

[0028] Example 2, please refer to Figure 1 and 3 The upper end of the backrest 2 is fixedly connected to a headrest 13, the front section of the seat cushion 1 is hinged to a leg pad 14, and a third support rod 15 is rotatably provided on the inner side of the two first support rods 4, and the front end of the third support rod 15 is hinged to the leg pad 14.

[0029] When the backrest 2 tilts backward, the third support rod 15 drives the leg pad 14 to tilt forward, so that the lower end of the leg pad 14 opens forward.

[0030] The first fixing block can be embedded with the second fixing block to fix the backrest 2 at a specified angle.

[0031] Please refer to Figure 1 and 3 The upper surface of the armrest 16 is detachably provided with an armrest pad, and the lower ends of the support foot 3 are detachably provided with rubber pads.

[0032] The working principle of the self-adaptive adjustment leisure chair provided by the utility model is as follows:

[0033] Lift the lower end of the armrest 16 and move it to a suitable position along the length direction of the horizontal sliding groove, and inlay the first fixed block with the adjacent second fixed block to tilt the backrest 2 backward and fix it at a specified angle. When the backrest 2 tilts backward, the second gear 8 rotates around the first gear 7 and drives the rack 11 to move downward, so that the sliding block 9 drives the lumbar pad 10 to move downward together. When the backrest 2 tilts backward, the third support rod 15 drives the leg pad 14 to tilt forward, so that the lower end of the leg pad 14 automatically rises.

[0034] Compared with the related art, the adaptive adjustment leisure chair provided by the present invention has the following beneficial effects:

[0035] The utility model provides a self-adaptive adjustable leisure chair with a sliding block and a lumbar pad. The lower end of the armrest is lifted and moved along the length direction of the transverse sliding groove to a suitable position, and the first fixed block is inlaid with the adjacent second fixed block, so that the backrest is tilted backward and fixed at a specified angle. When the backrest is tilted backward, the second gear rotates around the first gear and drives the rack to move downward, so that the sliding block drives the lumbar pad to move downward together. When the backrest is tilted backward, the third support rod drives the leg pad to tilt forward, so that the lower end of the leg pad automatically rises. Since when the backrest is tilted backward, the second gear rotates around the first gear and the rack moves downward, so that the sliding block drives the lumbar pad to move downward together. The user does not need to manually adjust the lumbar pad to a suitable position when the backrest of the leisure chair is tilted backward. The use is more convenient and the use effect is better.

[0036] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adaptive adjustment leisure chair, characterized in that: The invention comprises a seat cushion (1), a backrest (2) is provided at the rear of the seat cushion (1), support feet (3) are fixedly connected to both sides of the lower surface of the seat cushion (1), first support rods (4) are vertically fixedly connected to both sides of the lower end of the backrest (2), a first rotating shaft (5) is fixedly connected to the rear end of the seat cushion (1) along its width direction, two first support rods (4) are rotatably connected to the first rotating shaft (5), a vertical groove is provided through one side of the seat cushion (1), a sliding block (9) is provided in the vertical groove so as to slide up and down, a lumbar pillow (10) is fixedly connected to the front end of the sliding block (9), a driving mechanism for driving the sliding block (9) to slide up and down is provided between the two first support rods (4), and when the backrest (2) tilts backward, the lumbar pillow (10) moves downward along the front side of the backrest (2).

2. The self-adaptive leisure chair according to claim 1, characterized in that: The driving mechanism comprises a first gear (7) and a second gear (8), wherein the first gear is fixedly sleeved on the outer surface of the first rotating shaft (5), a second rotating shaft (6) is rotatably provided between the two first support rods (4), the second gear (8) is fixedly sleeved on the outer surface of the second rotating shaft (6) and meshes with the first gear (7), a rear end of the sliding block (9) is fixedly connected to a rack (11) meshed with the second gear (8), one side of the two first support rods (4) is fixedly connected to a second support rod (12), and the rack (11) is slidably connected to the second support rod (12).

3. The self-adaptive leisure chair according to claim 1, characterized in that: The upper end of the backrest (2) is fixedly connected to a headrest (13), the front section of the seat cushion (1) is hinged to a leg pad (14), a third support rod (15) is rotatably provided inside the two first support rods (4), the front end of the third support rod (15) is hinged to the leg pad (14), and the leg pad (14) is opened forward when the backrest (2) is tilted backward.

4. The self-adaptive leisure chair according to claim 1, characterized in that: L-shaped armrests (16) are provided on both sides of the seat cushion (1) so as to be slidable left and right, and one end of the two armrests (16) is hinged to the backrest (2).

5. The self-adaptive leisure chair according to claim 4, characterized in that: The seat cushion (1) has transverse sliding grooves on both sides, and the lower inner ends of the two armrests (16) are fixedly connected with a first fixing block. A plurality of L-shaped second fixing blocks are fixedly connected at intervals in the sliding grooves, and the first fixing block can be locked with the second fixing block. When the first fixing block and the second fixing block are locked with each other, the backrest (2) is fixed.

6. The self-adaptive leisure chair according to claim 4, characterized in that: An armrest pad is detachably provided on the upper surface of the armrest (16), and rubber pads are detachably provided at the lower ends of the support foot (3).

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