Movable chair base and chair

Abstract

The present application discloses a movable chair base and a chair. The movable chair base comprises: a base frame, the base frame being provided with an accommodating area; at least one sliding wheel assembly, the sliding wheel assembly being assembled in the accommodating area; and a driving assembly, the driving assembly being connected to the sliding wheel assembly and used for driving the sliding wheel assembly to extend out of the accommodating area or be accommodated in the accommodating area.

Description

Movable seat and chair Technical Field

[0001] The present application relates to the field of furniture technology, and in particular to a movable seat and a chair. Background Art

[0002] Existing seats are generally divided into two types: fixed seats and mobile seats. Fixed seats generally use legs or pads to directly contact the ground, thus fixing the seat in a specific location and making it extremely inconvenient to move. Mobile seats, on the other hand, often use rollers to directly connect to the ground, which cannot effectively fix the seat in a specific location and is prone to uncontrolled sliding, posing a potential safety hazard to the user. This is especially true for the elderly or children. Fixed seats limit their use in various scenarios, while mobile seats cannot guarantee the safety of the user, resulting in a poor user experience. Therefore, it is necessary to develop a seat that can meet the needs of different usage scenarios and has a high level of safety. Summary of the Invention

[0003] In order to overcome at least one of the defects described in the above-mentioned prior art, the present application provides a movable seat that can ensure the safety of seat users and meet the needs of use in different scenarios.

[0004] A movable chair seat according to an embodiment of the present application includes: a base frame, which is provided with a accommodating area; at least one pulley assembly, which is assembled in the accommodating area; and a drive assembly, which is connected to the pulley assembly and is used to drive the pulley assembly to extend out of the accommodating area or be accommodated in the accommodating area.

[0005] In this movable chair seat, the driving assembly drives the pulley assembly to extend out of the accommodating area, so that the seat is connected to the ground through the pulley assembly in a rolling manner, which is convenient for moving the seat and for use in different scenarios. Alternatively, the driving assembly drives the pulley assembly to be accommodated in the accommodating area, so that the seat is reliably fixed on the ground, avoiding uncontrollable sliding of the seat, ensuring the safety of the seat user, making the seat meet the use of different scenarios and effectively ensuring the safety of the seat user, thereby improving the user experience.

[0006] According to some embodiments of the present application, an assembly bracket is further included, which is arranged in the accommodating area and fixedly connected to the base frame; the pulley assembly is hinged to the assembly bracket.

[0007] According to some embodiments of the present application, the chassis includes a first crossbeam and a second crossbeam, and the assembly bracket is disposed between the first crossbeam and the second crossbeam.

[0008] According to some embodiments of the present application, a pad is provided at the lower end of the first beam, and both ends of the second beam are equipped with first rollers connected to the ground for rolling, wherein the distance between the pulley assembly and the first beam is smaller than the distance between the pulley assembly and the second beam.

[0009] According to some embodiments of the present application, a longitudinal beam is further included, and the first transverse beam, the second transverse beam and the assembly bracket are all fixedly connected to the longitudinal beam.

[0010] According to some embodiments of the present application, the pulley assembly includes a rotating square tube and at least one second roller, the second roller is assembled on the rotating square tube, the rotating square tube is hinged to the assembly bracket, and the drive assembly is connected to the rotating square tube.

[0011] According to some embodiments of the present application, the drive assembly includes a handle connected to the pulley assembly.

[0012] According to some embodiments of the present application, the drive assembly further includes a transmission arm and a transmission bracket, one end of the transmission arm is hinged to the pulley assembly, the other end of the transmission arm is hinged to the transmission bracket, one end of the transmission bracket is hinged to the base frame, and the handle is fixedly connected to the other end of the transmission bracket.

[0013] According to some embodiments of the present application, it also includes a rotating assembly plate, which is fixedly connected to the base frame, one end of the transmission bracket is hinged to the rotating assembly plate, and a contact switch is installed on the rotating assembly plate that is arranged opposite to the transmission bracket; when the transmission bracket drives the pulley assembly to extend out of the accommodating area through the transmission arm, the contact switch abuts against the transmission bracket.

[0014] Based on the same inventive concept, the present application also proposes a chair, which includes: the movable seat as described above.

[0015] In summary, the movable seat provided by this application has the following technical effects:

[0016] The driving assembly drives the pulley assembly to extend out of the accommodating area so that the seat is connected to the ground through the pulley assembly in a rolling manner, which is convenient for moving the seat and for use in different scenarios. Alternatively, the driving assembly drives the pulley assembly to be accommodated in the accommodating area so that the seat can be reliably fixed on the ground, avoiding uncontrollable sliding of the seat and ensuring the safety of the seat users. This makes the seat suitable for use in different scenarios and can effectively ensure the safety of the seat users, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of a movable seat when the pulley assembly extends out of the accommodation area according to an embodiment of the present application;

[0018] FIG2 is an enlarged schematic diagram of area A in FIG1 ;

[0019] FIG3 is a schematic structural diagram of the movable seat when the pulley assembly is accommodated in the accommodation area according to an embodiment of the present application;

[0020] FIG4 is an enlarged schematic diagram of area A in FIG3 ;

[0021] FIG5 is a schematic structural diagram of a drive assembly according to an embodiment of the present application;

[0022] FIG6 is a schematic structural diagram of a pulley assembly according to an embodiment of the present application.

[0023] Among them, the meanings of the figure marks are as follows: 1. Base frame; 11. Accommodating area; 12. Assembly bracket; 13. First crossbeam; 14. Second crossbeam; 15. Pad; 16. First roller; 17. Longitudinal beam; 18. Rotating assembly plate; 2. Pulley assembly; 21. Rotating square tube; 22. Second roller; 3. Drive assembly; 31. Handle; 32. Transmission arm; 33. Transmission bracket; 4. Contact switch. DETAILED DESCRIPTION

[0024] For better understanding and implementation, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0025] In the description of this application, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0027] Referring to Figures 1 and 3, the present application discloses a movable seat, which is applicable to a chair. The movable seat includes: a base frame 1, at least one pulley assembly 2, and a drive assembly 3. In some embodiments, the base frame 1 is provided with a storage area 11; the pulley assembly 2 is mounted in the storage area 11; and the drive assembly 3 is connected to the pulley assembly 2 and is used to drive the pulley assembly 2 to extend from the storage area 11 or to be accommodated in the storage area 11. Preferably, the drive assembly 3 drives the pulley assembly 2 to extend from the storage area 11, so that the seat is connected to the ground through the pulley assembly 2 in a rolling manner, facilitating the movement of the seat and facilitating use in different scenarios. Alternatively, the drive assembly 3 drives the pulley assembly 2 to be accommodated in the storage area 11, so that the seat is securely fixed to the ground, preventing uncontrolled sliding of the seat, ensuring the safety of the seat user, and making the seat suitable for use in different scenarios and effectively ensuring the safety of the seat user, thereby improving the user experience.

[0028] In some embodiments, the number of the pulley assemblies 2 can be multiple, and by distributing the multiple pulley assemblies 2 on the base frame 1, the multiple pulley assemblies 2 are simultaneously driven to extend out of the accommodating area 11 by the driving assembly 3, or each pulley assembly 2 is driven to extend out of the accommodating area 11 one by one by the driving assembly 3, so that the multiple pulley assemblies 2 form a stable support structure, and the movable seat is smoothly moved on the ground by the multiple pulley assemblies 2. When it is not necessary to move, the pulley assembly 2 is accommodated in the accommodating area 11 by the driving assembly 3, so that the seat is reliably fixed on the ground, preventing the seat from uncontrollable sliding, and ensuring the safety of the seat user.

[0029] Referring to Figures 1 and 3, in some embodiments, the base frame 1 includes a first crossbeam 13 and a second crossbeam 14. In some embodiments, the first crossbeam 13 and the second crossbeam 14 are composed of square tubes. In some embodiments, the accommodating area 11 is the area between the first crossbeam 13 and the second crossbeam 14. Preferably, the assembly bracket 12 is provided between the first crossbeam 13 and the second crossbeam 14, that is, the assembly bracket 12 is provided in the accommodating area 11. In some embodiments, the pulley assembly 2 is hinged to the assembly bracket 12. Preferably, the driving assembly 3 is used to drive the pulley assembly 2 to rotate around the assembly bracket 12, so that the pulley assembly 2 extends out of the accommodating area 11 or is accommodated in the accommodating area 11.

[0030] 1 and 3 , in some embodiments, the chassis 1 further includes a longitudinal beam 17. In some embodiments, the number of the longitudinal beams 17 may be one or more. When the number of the longitudinal beam 17 is one, the longitudinal beam 17, the first cross beam 13 and the second cross beam 14 may be combined into an I-shaped structure, that is, the first cross beam 13 and the second cross beam 14 are respectively connected to the ends of the longitudinal beam 17, and the assembly bracket 12 is arranged between the first cross beam 13 and the second cross beam 14. When the number of the longitudinal beams 17 is multiple, the longitudinal beam 17, the first cross beam 13 and the second cross beam 14 may be combined into a square frame structure. The accommodating area 11 may be a chamber surrounded by the longitudinal beam 17, the first cross beam 13 and the second cross beam 14. The assembly bracket 12 is arranged in the accommodating area 11. Preferably, the first cross beam 13, the second cross beam 14 and the assembly bracket 12 are all fixedly connected to the longitudinal beam 17. In some embodiments, the pulley assembly 2 is hinged to the assembly bracket 12, so the pulley assembly 2 can be driven by the driving assembly 3 to rotate around the assembly bracket 12, so that the pulley assembly 2 is accommodated in the cavity surrounded by the longitudinal beam 17, the first cross beam 13 and the second cross beam 14 or extends therefrom.

[0031] Referring to Figures 1 and 3, in some embodiments, a pad 15 is provided at the lower end of the first crossbeam 13, and both ends of the second crossbeam 14 are equipped with first rollers 16 that are in rolling connection with the ground, wherein the distance between the pulley assembly 2 and the first crossbeam 13 is smaller than the distance between the pulley assembly 2 and the second crossbeam 14. That is, the pad 15 is provided at one end of the base frame 1, and the first roller 16 is provided at the other end of the base frame 1. Specifically, when the pulley assembly 2 is accommodated in the accommodating area 11, the base frame 1 is in contact with the ground through the pad 15 and the first roller 16. At this time, since the pad 15 is fixedly assembled at the lower end of the first crossbeam 13, the seat can be securely parked on the ground. When the seat needs to be moved, the drive assembly 3 drives the pulley assembly 2 to rotate around the assembly bracket 12, so that the pulley assembly 2 extends out of the accommodating area 11. At the same time, the distance between the pulley assembly 2 and the first crossbeam 13 is smaller than the distance between the pulley assembly 2 and the second crossbeam 14, that is, the distance between the pulley assembly 2 and the cushion block 15 is smaller than the distance between the pulley assembly 2 and the first roller 16, so that after the pulley assembly 2 extends out of the accommodating area 11, there is a sufficiently large distance between the pulley assembly 2 and the first roller 16, and the two can effectively and stably support the base frame 1, thereby improving the safety performance of the seat and avoiding the unstable center of gravity of the base, which increases the probability of the seat tipping over.

[0032] Referring to Figures 1, 3, and 6, in some embodiments, the pulley assembly 2 includes a rotating square tube 21 and at least one second roller 22. The second roller 22 is mounted on the rotating square tube 21, the rotating square tube 21 is hingedly connected to the assembly bracket 12, and the drive assembly 3 is connected to the rotating square tube 21. In some embodiments, when there is only one second roller 22, the second roller 22 is mounted in the middle of the rotating square tube 21. When there are multiple second rollers 22, the second rollers 22 are distributed along the length of the rotating square tube 21. In some embodiments, a connecting plate may be fixedly connected to the rotating square tube 21, and the rotating square tube 21 is hingedly connected to the assembly bracket 12 via the connecting plate. For ease of description, the hinge point between the connecting plate and the assembly bracket 12 is referred to as the first hinge point. Specifically, the drive assembly 3 drives the rotating square tube 21 to rotate about the first hinge point, thereby driving the second roller 22 to extend out of the accommodating area 11 or to be accommodated in the accommodating area 11 through the rotating square tube 21.

[0033] Referring to Figures 1, 3, and 5, in some embodiments, the drive assembly 3 includes a handle 31, which is connected to the pulley assembly 2. Specifically, the handle 31 directly drives the rotating square tube 21 to rotate about a first hinge point. In some embodiments, the drive member further includes a transmission arm 32 and a transmission bracket 33. One end of the transmission arm 32 is hinged to the pulley assembly 2, and the other end of the transmission arm 32 is hinged to the transmission bracket 33. One end of the transmission bracket 33 is hinged to the base frame 1, and the handle 31 is fixedly connected to the other end of the transmission bracket 33. Specifically, for ease of description, the hinge point between the transmission bracket 33 and the base frame 1 is referred to as the second hinge point. The handle 31 drives the transmission bracket 33 to rotate about the second hinge point, thereby driving the rotating square tube 21 to rotate about the first hinge point via the transmission arm 32, thereby driving the second roller 22 to extend out of the accommodating area 11 or to be accommodated in the accommodating area 11 via the rotating square tube 21.

[0034] Referring to Figures 1, 2, 3, 4 and 5, in some embodiments, a rotating assembly plate 18 is further included, one end of the transmission bracket 33 is hinged to the rotating assembly plate 18, and the rotating assembly plate 18 is fixedly connected to the base frame 1, so the second hinge point is essentially the hinge point between the transmission bracket 33 and the rotating assembly plate 18. In some embodiments, a contact switch 4 is mounted on the rotating assembly plate 18 and is arranged opposite to the transmission bracket 33; when the transmission bracket 33 drives the pulley assembly 2 to extend out of the accommodating area 11 through the transmission arm 32, the contact switch 4 abuts against the transmission bracket 33. Preferably, the contact switch 4 opens and closes to drive the electrical equipment on the chair seat, such as the leg motor and the backrest motor. In some embodiments, the handle 31 is used to drive the transmission bracket 33 to rotate downward around the second hinge point, thereby driving the rotating square tube 21 to rotate downward around the first hinge point through the transmission arm 32, so that the rotating square tube 21 drives the second roller 22 to extend out of the accommodating area 11. At the same time, the transmission bracket 33 abuts against the contact switch 4 to cut off the power to the electrical equipment such as the leg motor and the backrest motor, avoiding electric shock accidents during movement, thereby improving the safety of the chair seat and ensuring the safety of the seat users.

[0035] In some embodiments, a chair includes the movable seat described above. This is particularly suitable for use with elderly people or children, making it convenient for caregivers to accompany the elderly or children when going out. The drive assembly 3 can be used to drive the pulley assembly 2 to extend or retract into the accommodating area 11, thereby enabling the chair to be used in different scenarios and improving the user experience.

[0036] 1 , 2 , 3 , 4 , 5 and 6 , in some embodiments, a plurality of longitudinal beams 17 , the first cross beam 13 and the second cross beam 14 can be combined into a square frame structure. In some embodiments, a pad 15 is provided at the lower end of the first cross beam 13 , and both ends of the second cross beam 14 are equipped with first rollers 16 connected to the ground for rolling. In some embodiments, the assembly bracket 12 is provided between the first cross beam 13 and the second cross beam 14 , the rotating square tube 21 is hinged to the assembly bracket 12 , and the two second rollers 22 are distributed along the length direction of the rotating square tube 21 . In some embodiments, a connecting plate can be fixedly connected to the rotating square tube 21 , and the rotating square tube 21 is hinged to the assembly bracket 12 through the connecting plate. For the convenience of description, the hinge point between the connecting plate and the assembly bracket 12 is referred to as the first hinge point; one end of the transmission arm 32 is hinged to the rotating square tube 21 , and the other end of the transmission arm 32 is hinged to the rotating square tube 21 It is connected to the transmission bracket 33, one end of the transmission bracket 33 is hinged to the rotating assembly plate 18 on the base frame 1, and the hinge point between the transmission bracket 33 and the rotating assembly plate 18 is referred to as the second hinge point. The handle 31 is fixedly connected to the other end of the transmission bracket 33. In some embodiments, the rotating assembly plate 18 is equipped with a contact switch 4 arranged opposite to the transmission bracket 33; when the seat needs to be moved, the handle 31 is used to drive the transmission bracket 33 to rotate downward around the second hinge point, thereby driving the rotating square tube 21 to rotate downward around the first hinge point through the transmission arm 32, so that the rotating square tube 21 drives the second roller 22 to extend out of the accommodating area 11. At this time, the seat is connected to the ground through the first roller 16 and the second roller 22, and the user can easily push the seat. At the same time, the transmission bracket 33 abuts against the contact switch 4 to cut off the power to electrical equipment such as the leg motor and the backrest motor to avoid electric shock accidents during movement. When the seat needs to be fixed, the handle 31 is used to drive the transmission bracket 33 to rotate upward around the second hinge point. At this time, the transmission bracket 33 is separated from the contact switch 4, and electrical equipment such as the leg motor and the backrest motor can be used normally. At the same time, the transmission arm 32 drives the rotating square tube 21 to rotate upward around the first hinge point, so that the rotating square tube 21 drives the second roller 22 to be accommodated in the accommodating area 11. At this time, the seat is in contact with the ground through the first roller 16 and the pad 15, so that the seat is reliably fixed on the ground, avoiding uncontrollable sliding of the seat and ensuring the safety of the seat user.

[0037] The technical means disclosed in the present application are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present application, and such improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A movable chair seat comprising: A base frame (1), wherein the base frame (1) is provided with a receiving area (11); at least one pulley assembly (2), the pulley assembly (2) being mounted in the accommodation area (11); A drive assembly (3) is connected to the pulley assembly (2) and is used to drive the pulley assembly (2) to extend out of the accommodating area (11) or to be accommodated in the accommodating area (11).

2. The movable seat according to claim 1, further comprising an assembly bracket (12), wherein the assembly bracket (12) is arranged in the accommodating area (11) and is fixedly connected to the base frame (1); The pulley assembly (2) is hinged to the assembly bracket (12).

3. The movable seat according to claim 2, wherein: The base frame (1) comprises a first crossbeam (13) and a second crossbeam (14), and the assembly bracket (12) is arranged between the first crossbeam (13) and the second crossbeam (14).

4. The movable seat according to claim 3, wherein: A pad (15) is provided at the lower end of the first crossbeam (13), and both ends of the second crossbeam (14) are equipped with first rollers (16) connected to the ground in a rolling manner, wherein the distance between the pulley assembly (2) and the first crossbeam (13) is smaller than the distance between the pulley assembly (2) and the second crossbeam (14).

5. The movable seat according to claim 3, further comprising a longitudinal beam (17), wherein the first transverse beam (13), the second transverse beam (14) and the assembly bracket (12) are all fixedly connected to the longitudinal beam (17).

6. The movable seat according to claim 2, wherein: The pulley assembly (2) comprises a rotating square tube (21) and at least one second roller (22), wherein the second roller (22) is assembled on the rotating square tube (21), the rotating square tube (21) is hinged to the assembly bracket (12), and the driving assembly (3) is connected to the rotating square tube (21).

7. The movable seat according to claim 1, wherein: The driving assembly (3) comprises a handle (31), and the handle (31) is connected to the pulley assembly (2).

8. The movable seat according to claim 7, wherein: The driving assembly (3) further comprises a transmission arm (32) and a transmission bracket (33), one end of the transmission arm (32) is hinged to the pulley assembly (2), the other end of the transmission arm (32) is hinged to the transmission bracket (33), one end of the transmission bracket (33) is hinged to the base frame (1), and the handle (31) is fixedly connected to the other end of the transmission bracket (33).

9. The movable chair seat according to claim 8, further comprising a rotating assembly plate (18), wherein the rotating assembly plate (18) is fixedly connected to the base frame (1), one end of the transmission bracket (33) is hinged to the rotating assembly plate (18), and the rotating assembly plate (18) is equipped with a contact switch (4) arranged opposite to the transmission bracket (33); When the transmission bracket (33) drives the pulley assembly (2) to extend out of the accommodating area (11) through the transmission arm (32), the contact switch (4) abuts against the transmission bracket (33).

10. A seat comprising: A movable seat according to any one of claims 1 to 9.

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