Adjustable tilting type seat

Abstract

The utility model relates to an adjustable inclinable seat, which comprises a base, a rotating assembly, a seat, a transmission assembly, a locking assembly and a leg support assembly, and is characterized in that the seat is rotatably arranged on the base through the rotating assembly; locking assemblies used for limiting rotation of the seat are arranged on the two sides of the rotating assembly through transmission assemblies. The locking assembly comprises a cylindrical groove, an elastic movable part, an arc-shaped plate and a switch assembly, the cylindrical groove is formed in the seat, the elastic movable part is movably arranged in the cylindrical groove, the arc-shaped plate is arranged at the action end of the elastic movable part and right faces the execution tail end of the transmission assembly, and the switch assembly is arranged on the seat and matched with the action end of the elastic movable part. The whole seat can rotate by arranging the rotating assembly, any rotating angle of the seat can be locked and fixed by arranging the transmission assembly and the locking assembly, and a user can conveniently adjust the seat to a comfortable angle to have a rest when having a rest.

Description

Technical Field

[0001] This utility model relates to the field of adjustable seat technology, specifically an adjustable tiltable seat. Background Technology

[0002] CN202221806208.9 discloses a chair with quickly adjustable tilt, including a seat and chair legs. A backrest is rotatably connected to the rear of the seat, and sliding grooves are provided on both sides of the backrest. Telescopic armrests are fixedly installed on both sides of the top of the seat, and the other end of the telescopic armrests is slidably connected in the sliding grooves. Both the seat and backrest surfaces are covered with soft padding. This prior art allows the assembly with a movable backrest and sleeve to tilt backward along a support rod when leaning back. However, this prior art only allows adjustment of the backrest, and the design of only allowing the backrest to rotate limits the user's overall range of motion, making it impossible to flexibly adjust the sitting posture according to individual needs, which may lead to discomfort when resting. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable and tiltable seat to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustable reclining seat includes a base, a rotating assembly, a seat, a transmission assembly, a locking assembly, and a leg rest assembly, wherein:

[0006] The rotating assembly includes a central axis reversing tray, a rotating rod, a movable rod, an arc groove, and a torsion spring. The central axis reversing tray is mounted on the base. One end of the seat is rotatably mounted on the central axis reversing tray via the rotating rod, and the other end is movably fitted into the arc groove on the central axis reversing tray via the movable rod. The torsion spring is sleeved on the central axis reversing tray and connected to the rotating rod at both ends.

[0007] The movable rod is equipped with locking components on both sides via a transmission assembly to restrict the rotation of the seat.

[0008] Preferably, the locking assembly includes a cylindrical groove, an elastic movable part, an arc plate, and a switch assembly. The seat has a cylindrical groove, the elastic movable part is movably disposed in the cylindrical groove, the arc plate is disposed at the actuating end of the elastic movable part, the arc plate is directly opposite the actuating end of the transmission assembly, and the switch assembly is disposed on the seat and cooperates with the actuating end of the elastic movable part.

[0009] Preferably, the transmission assembly includes a movable ring, a telescopic connecting rod, and a Z-shaped connecting rod. The movable ring is movably fitted in an arc-shaped groove, and the movable rod is fixedly sleeved on the movable ring. The telescopic connecting rod is provided on the side of the movable ring. One end of the Z-shaped connecting rod is connected to the telescopic connecting rod, and the other end serves as the execution end and is vertically movable on the seat. The arc-shaped plate is directly opposite the execution end of the Z-shaped connecting rod.

[0010] Preferably, the elastic movable part includes a movable sleeve and a spring, wherein the movable sleeve is movably disposed in the cylindrical groove by the spring.

[0011] Preferably, the switch assembly includes a movable plate, a connecting rod, a movable connecting rod, a limiting groove, and a pull rod. The movable plate is movably disposed within the movable sleeve. Connecting rods are hinged to both ends of the movable plate, and a movable connecting rod is hinged to the other end of the connecting rod. The movable connecting rod is movably disposed on the side of the movable sleeve. A limiting groove is formed on the inner side of the cylindrical groove. The movable connecting rod contacts the limiting groove. The pull rod is movably disposed within the cylindrical groove. One end of the pull rod passes through the movable sleeve and connects to the movable plate, while the other end is located outside the cylindrical groove.

[0012] Preferably, the switch assembly further includes a stop block, the cylindrical groove is provided with a stop block for restricting the movement of the movable sleeve, and the movable sleeve is provided with a stop block for restricting the movement of the movable plate.

[0013] Preferably, the leg support assembly is mounted on the seat, and the leg support assembly includes a leg support plate, a cylinder, and a damping spring. The leg support plate is hinged to the seat, the cylinder is mounted on the central axis reversing tray and is poweredly connected to the leg support plate, and a damping spring is provided between the leg support plate and the seat.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the adjustable tilting seat disclosed in this utility model can be rotated as a whole by setting a rotating component during operation, and can be locked and fixed at any rotation angle by setting a transmission component and a locking component, so that users can adjust to a comfortable angle to rest. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model from below;

[0017] Figure 3 This is a three-dimensional schematic diagram of the present invention after the leg support plate has been removed;

[0018] Figure 4 This is a side sectional view of the present invention;

[0019] Figure 5 for Figure 4 Schematic diagram of section A in the middle;

[0020] Figure 6 This is a partial sectional view of the side of this utility model;

[0021] Figure 7 This is a cross-sectional view of the upper end face of this utility model;

[0022] Figure 8 for Figure 7 Schematic diagram of section B. In the diagram: 1. Base, 2. Rotating assembly, 3. Seat, 4. Transmission assembly, 5. Locking assembly, 6. Leg support assembly, 20. Central shaft reversing tray, 21. Rotating rod, 22. Movable rod, 23. Arc groove, 24. Torsion spring, 41. Movable ring, 42. Telescopic connecting rod, 43. Z-shaped connecting rod, 50. Cylindrical groove, 51. Elastic movable part, 52. Arc plate, 53. Switch assembly, 61. Leg support plate, 62. Cylinder, 63. Damping spring, 511. Movable sleeve, 512. Spring, 531. Movable plate, 532. Connecting rod, 533. Movable connecting rod, 534. Limit groove, 535. Pull rod, 536. Stop block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figures 1 to 8 This utility model provides a technical solution:

[0026] An adjustable reclining seat includes a base 1, a rotating assembly 2, a seat 3, a transmission assembly 4, a locking assembly 5, and a leg support assembly 6, wherein:

[0027] The rotating assembly 2 includes a central axis reversing tray 20, a rotating rod 21, a movable rod 22, an arc-shaped groove 23, and a torsion spring 24. The central axis reversing tray 20 is mounted on the base 1. One end of the seat 3 is rotatably mounted on the central axis reversing tray 20 via the rotating rod 21, and the other end is movably fitted into the arc-shaped groove 23 on the central axis reversing tray 20 via the movable rod 22. The center of the arc-shaped groove 23 coincides with the rotation center of the rotating rod 21. The torsion spring 24 is sleeved on the central axis reversing tray 20 and connected to the rotating rod 21 at both ends. When the seat 3 drives the rotating rod 21 to rotate, it pulls the torsion spring 24, thereby preventing the seat 3 from tilting backward too quickly.

[0028] The movable rod 22 is equipped with locking components 5 on both sides via the transmission assembly 4 to limit the rotation of the seat 3;

[0029] In a preferred embodiment, the locking assembly 5 includes a cylindrical groove 50, an elastic movable part 51, an arc-shaped plate 52, and a switch assembly 53. The cylindrical groove 50 is located on the side of the armrest end of the seat 3. The elastic movable part 51 is movably disposed within the cylindrical groove 50. The arc-shaped plate 52 is located at the actuating end of the elastic movable part 51, directly facing the actuating end of the transmission assembly 4. The arc-shaped plate 52 and the actuating end of the transmission assembly 4 are locked together by friction. The switch assembly 53 is located on the seat 3 and cooperates with the actuating end of the elastic movable part 51. The switch assembly 53 is used to control the movement of the actuating end of the elastic movable part 51.

[0030] In a preferred embodiment, the transmission assembly 4 includes a movable ring 41, a telescopic connecting rod 42, and a Z-shaped connecting rod 43. The movable ring 41 is movably fitted within the arc-shaped groove 23, and the movable ring 41 and the arc-shaped groove 23 are keyed together. The movable rod 22 is fixedly sleeved on the movable ring 41, and the movable rod 22 drives the movable ring 41 to move within the arc-shaped groove 23. The telescopic connecting rod 42 is provided on the side of the movable ring 41, providing the movable ring 41 with a degree of freedom in the horizontal direction, allowing the movable ring 41 to move within the arc-shaped groove 23. One end of the Z-shaped connecting rod 43 is connected to the telescopic connecting rod 42, which drives the Z-shaped connecting rod 43 to move in the vertical direction. The other end serves as the actuator and is movably mounted on the seat 3 as a vertical moving part. The arc-shaped plate 52 faces the actuator of the Z-shaped connecting rod 43. The arc-shaped plate 52 can make frictional contact with the end of the connecting rod 43 located inside the seat 3, thereby achieving friction locking.

[0031] In a preferred embodiment, the elastic movable part 51 includes a movable sleeve 511 and a spring 512. The movable sleeve 511 is movably disposed within the cylindrical groove 50 via the spring 512. The movable sleeve 511 forms a sliding pair within the cylindrical groove 50, wherein the direction of movement is as shown in the attached figure. Figure 7 Y direction shown in .

[0032] In a preferred embodiment, the switch assembly 53 includes a movable plate 531, a connecting rod 532, a movable connecting rod 533, a limiting groove 534, and a pull rod 535. The movable plate 531 is movably disposed within the movable sleeve 511, forming a sliding pair within the movable sleeve 511. The connecting rod 532 is hinged to both ends of the movable plate 531, and the movable connecting rod 533 is hinged to the other end of the connecting rod 532. The movable connecting rod 533 passes through the movable sleeve 511 and is movably disposed on the side of the movable sleeve 511. A limiting groove 534 is opened on the inner side of the cylindrical groove 50. The limiting groove 534 is used to accommodate the movable connecting rod 533, and the movable connecting rod 533 contacts the limiting groove 534. The pull rod 535 is movably disposed within the cylindrical groove 50. One end of the pull rod 535 passes through the movable sleeve 511 and is connected to the movable plate 531, while the other end is located outside the cylindrical groove 50. Pushing the pull rod 535 closer to the Z-shaped connecting rod 43 allows the movable connecting rod 533 to be pulled via the connecting rod 532, thus disengaging the movable connecting rod 533 from the limiting groove 534. At this time, the movable end of the movable connecting rod 533 is still located outside the movable sleeve 511. Because the movable connecting rod 533 is no longer restricted by the limiting groove 534, the movable sleeve 511, under the elastic force of the spring 512, causes the arc-shaped plate 52 to rub against the end of the connecting rod 43 located inside the seat 3, thereby achieving friction locking. To release the lock, simply pull the pull rod 535 away from the Z-shaped connecting rod 43, which will simultaneously move the movable sleeve 511 away from the Z-shaped connecting rod 43.

[0033] In a preferred embodiment, the switch assembly 53 further includes a stop 536. The cylindrical groove 50 contains a stop 536 to restrict the movement of the movable sleeve 511. When the movable sleeve 511 moves away from the Z-shaped connecting rod 43, and contacts the stop 536, the pull rod 535 continues to pull away from the Z-shaped connecting rod 43. At this time, the movable sleeve 511 is blocked by the stop 536 and will not move. The movable connecting rod 533 is then facing the limiting groove 534, causing the movable plate 531 to pull the connecting rod 532, causing the movable connecting rod 533 to extend into the limiting groove 534, achieving a reset. The movable sleeve 511 contains a stop 536 to restrict the movement of the movable plate 531. By providing a stop 536 inside the movable sleeve 511, the movable plate 531 is prevented from moving away from the Z-shaped connecting rod 43, thus avoiding the connecting rod 532 causing the movable connecting rod 533 to retract inward.

[0034] In a preferred embodiment, the leg support assembly 6 is disposed on the seat 3. The leg support assembly 6 includes a leg support plate 61, a cylinder 62, and a damping spring 63. The leg support plate 61 is hinged to the seat 3 and can rotate on the seat 3. The cylinder 62 is disposed on the central axis reversing tray 20 and is poweredly connected to the leg support plate 61. The cylinder 62 is used to drive the leg support plate 61 to rotate. A damping spring 63 is provided between the leg support plate 61 and the seat 3.

[0035] The working principle of this utility model:

[0036] When the user sits on the seat 3, the user can lean back, which allows the seat 3 to rotate around the pivot rod 21.

[0037] Once rotated to a comfortable angle, push the pull rod 535 towards the Z-shaped connecting rod 43. The connecting rod 532 can pull the movable connecting rod 533, thereby causing the movable connecting rod 533 to disengage from the limiting groove 534. At this time, the movable end of the movable connecting rod 533 is still located outside the movable sleeve 511. Since the movable connecting rod 533 has disengaged from the limiting groove 534, the movable sleeve 511 will be subjected to the elastic force of the spring 512, causing the arc plate 52 to rub against the end of the connecting rod 43 located inside the seat 3, thereby achieving friction locking.

[0038] When the lock needs to be released, simply pull the lever 535 away from the Z-shaped connecting rod 43. This will cause the movable sleeve 511 to move away from the Z-shaped connecting rod 43 simultaneously. When the movable sleeve 511 contacts the stop block 536, continue pulling the lever 535 away from the Z-shaped connecting rod 43. At this time, the movable sleeve 511 is blocked by the stop block 536 and will not move. At this time, the movable connecting rod 533 is facing the limiting groove 534, which causes the movable plate 531 to pull the connecting rod 532, causing the movable connecting rod 533 to extend into the limiting groove 534, thus achieving the purpose of resetting. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable reclining seat, comprising a base (1), a rotating assembly (2), a seat (3), a transmission assembly (4), a locking assembly (5), and a leg support assembly (6), characterized in that: The rotating assembly (2) includes a central axis reversing tray (20), a rotating rod (21), a movable rod (22), an arc groove (23), and a torsion spring (24). The central axis reversing tray (20) is mounted on the base (1). One end of the seat (3) is rotatably mounted on the central axis reversing tray (20) via the rotating rod (21), and the other end is movably fitted in the arc groove (23) on the central axis reversing tray (20) via the movable rod (22). The torsion spring (24) is sleeved on the central axis reversing tray (20) and connected to the rotating rod (21) at both ends. The movable rod (22) is provided with locking components (5) on both sides via the transmission assembly (4) for limiting the rotation of the seat (3).

2. The adjustable reclining seat according to claim 1, characterized in that: The locking assembly (5) includes a cylindrical groove (50), an elastic movable part (51), an arc plate (52), and a switch assembly (53). The seat (3) has a cylindrical groove (50). The elastic movable part (51) is movably disposed in the cylindrical groove (50). The arc plate (52) is disposed at the actuating end of the elastic movable part (51). The arc plate (52) is directly opposite the actuating end of the transmission assembly (4). The switch assembly (53) is disposed on the seat (3) and cooperates with the actuating end of the elastic movable part (51).

3. The adjustable reclining seat according to claim 2, characterized in that: The transmission assembly (4) includes a movable ring (41), a telescopic connecting rod (42), and a Z-shaped connecting rod (43). The movable ring (41) is movably fitted in the arc groove (23). The movable rod (22) is fixedly sleeved on the movable ring (41). The telescopic connecting rod (42) is provided on the side of the movable ring (41). One end of the Z-shaped connecting rod (43) is connected to the telescopic connecting rod (42), and the other end serves as the execution end and is vertically movable on the seat (3). The arc plate (52) is directly opposite the execution end of the Z-shaped connecting rod (43).

4. The adjustable reclining seat according to claim 3, characterized in that: The elastic movable part (51) includes a movable sleeve (511) and a spring (512), wherein the movable sleeve (511) is movably disposed in the cylindrical groove (50) by means of the spring (512).

5. An adjustable reclining seat according to claim 4, characterized in that: The switch assembly (53) includes a movable plate (531), a connecting rod (532), a movable connecting rod (533), a limiting groove (534), and a pull rod (535). The movable plate (531) is movably disposed inside the movable sleeve (511). The two ends of the movable plate (531) are hinged to the connecting rod (532), and the other end of the connecting rod (532) is hinged to the movable connecting rod (533). The movable connecting rod (533) is movably disposed on the side of the movable sleeve (511). The inner side of the cylindrical groove (50) has a limiting groove (534). The movable connecting rod (533) contacts the limiting groove (534). The pull rod (535) is movably disposed inside the cylindrical groove (50). One end of the pull rod (535) passes through the movable sleeve (511) and connects to the movable plate (531), and the other end is located outside the cylindrical groove (50).

6. An adjustable reclining seat according to claim 5, characterized in that: The switch assembly (53) further includes a stop (536), the cylindrical groove (50) is provided with a stop (536) for restricting the movement of the movable sleeve (511), and the movable sleeve (511) is provided with a stop (536) for restricting the movement of the movable plate (531).

7. An adjustable reclining seat according to claim 5, characterized in that: The leg support assembly (6) is mounted on the seat (3). The leg support assembly (6) includes a leg support plate (61), a cylinder (62) and a damping spring (63). The leg support plate (61) is hinged to the seat (3). The cylinder (62) is mounted on the central axis reversing tray (20) and is poweredly connected to the leg support plate (61). A damping spring (63) is provided between the leg support plate (61) and the seat (3).

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