Seat elevator

Abstract

The utility model discloses a seat elevator which comprises a base plate supported on the ground, a seat arranged above the base plate and provided with a lowest position and a highest position, and a driving assembly used for driving the seat to move between the lowest position and the highest position, the seat comprises a seat plate, and the seat plate is recessed inwards from the bottom and forms a groove matched with the base plate. When the seat is located at the lowest position, the seat plate covers the groove and is synchronously supported on the chassis, and the front end, the left side and the right side of the seat plate are attached to the ground. The seat plate is matched with the base plate, so that the seat plate can be supported on the base plate and is attached to the ground at the same time, the operation difficulty that a person having difficulty in moving sits on the seat plate from the ground is greatly reduced, and the use experience of a user is effectively improved; meanwhile, the supporting performance of the seat plate is effectively improved, deformation is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the field of elevators, and particularly relates to a seat elevator. Background Art

[0002] A seat elevator is a tool used to assist people with limited mobility to sit on a seat from the ground and lift it to a certain height.

[0003] Currently, existing seat elevators generally include a chassis, a seat, and a lifting drive device for driving the seat to move up and down. When in use, the seat board is lowered to the lowest position so that the user can smoothly sit on the seat board from the ground, and then the seat board is lifted to a height suitable for the user's sitting posture.

[0004] However, in the actual use process, in the existing elevators, due to the height limitation of the chassis, when the seat board is at the lowest position, it cannot be close to the ground and is in a suspended state. Therefore, the user or others still need to assist in lifting it to a certain height to smoothly sit on the seat board. For people with limited mobility, the operation is very inconvenient, and the user experience is poor. In addition, when the user sits on the seat board instantaneously, due to inertia, a large impact will be generated on the seat board, and the seat board is easily deformed and damaged in the suspended state, resulting in a low service life. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a new seat elevator.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A seat elevator includes a chassis supported on the ground, a seat disposed above the chassis and having a lowest position and a highest position, and a drive assembly for driving the seat to move between the lowest position and the highest position. The seat includes a seat board, the seat board is recessed inward from the bottom to form a groove matching the chassis. When the seat is at the lowest position, the seat board covers and synchronously supports on the chassis from the groove, and the front end and the left and right sides of the seat board are respectively in contact with the ground.

[0008] According to a specific implementation and preferred aspect of the utility model, the seat board includes a horizontally disposed board body, a front end board extending downward from the front end of the board body, and side boards extending downward from the left and right sides of the board body respectively. A groove is formed between the board body, the front end board and the side boards. Herein, the structure is simple and convenient for processing.

[0009] Preferably, the left and right side boards are perpendicular to the board body; and / or, an obtuse angle is formed between the front end board and the board body. Herein, the support of the ground for the board body is enhanced by the left and right side boards, and at the same time, through the inclined front end board, a slope is formed between the board body and the ground, thereby further facilitating the user to sit on the seat board from the ground.

[0010] Further, the seat board further includes a frame fixedly connected to the bottom surface of the board body. When the seat is in the lowest position, the chassis is located in the space between the frame and the left and right side plates. Here, the support for the user after the seat board is lifted and separated from the chassis is further enhanced.

[0011] Preferably, the seat further includes a backrest connected to the drive assembly and armrests located on the left and right sides. The frame and the armrests are respectively rotatably connected to the backrest through pivot shafts, and the seat board and the armrests are turned up and down to open or fold the seat. Here, the seat can be folded to save packaging space, and at the same time, the seat can be designed without assembly, and the seat can be used after being opened.

[0012] According to another specific implementation and preferred aspect of the present invention, the chassis includes a cross bar extending left and right, and vertical bars fixedly connected to the cross bar side by side at left and right and extending front and back. When the seat is in the lowest position, the left and right vertical bars are correspondingly inserted between the frame and the left and right side plates, and the board body is supported on the left and right vertical bars from the bottom surface.

[0013] Preferably, the chassis further includes a connecting rod extending backward and upward obliquely from the cross bar, and a wheel rotatably connected to the end of the connecting rod far from the cross bar. When the vertical bar is horizontally supported on the ground, the wheel is separated from the ground; when the vertical bar is tilted upward from back to front, the wheel is supported on the ground; there are at least two wheels and they are arranged side by side at left and right with a spacing. Here, the chassis realizes two working states: one is the fixed state, which is used when the seat needs to be lifted, stored, and transported; the other is the walking state, which is used when the user is sitting on the seat and needs to move.

[0014] According to another specific implementation and preferred aspect of the present invention, the drive assembly includes a telescopic rod connected to the chassis and extending up and down, a motor for driving the telescopic rod to expand and contract, and a controller for controlling the motor, wherein the seat is fixedly connected to the telescopic rod.

[0015] Preferably, the telescopic rod extends backward and upward obliquely from the chassis; and / or, the telescopic rod includes an inner tube detachably connected to the chassis from the lower end, and an outer tube sleeved on the inner tube and capable of telescopic movement, and the seat is fixedly connected to the outer tube. Here, when lifting, it can drive the user to have a tendency to lean backward, avoiding the user from falling forward and improving safety.

[0016] Preferably, the controller is a handheld controller and is connected to the motor through a telescopic connecting wire. It is convenient for the user to control at any height.

[0017] In addition, the drive assembly further includes a push handle fixed to the upper end of the telescopic rod.

[0018] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0019] Due to the height limitation of the chassis of the existing elevator, when the seat board is at the lowest position, it cannot be close to the ground and is in a suspended state. Therefore, the user or others still need to assist in lifting it to a certain height to successfully sit on the seat board. For those with inconvenient mobility, the operation is very inconvenient, and the user experience is poor. In addition, at the moment when the user sits on the seat board, due to inertia, a great impact will be generated on the seat board, and the seat board is very easy to deform and damage in the suspended state, resulting in a low service life; while the present application conducts an overall design on the structure of the seat elevator, skillfully solves the deficiencies and defects of the existing technology. After adopting this seat elevator, the driving component drives the seat to descend to the lowest position, so that the seat board of the seat covers and supports on the chassis. At this time, the front end and the left and right sides of the seat board are in contact with the ground, and the user can sit on the seat board from the ground; then the driving component drives the seat to rise to the use height suitable for the user. Therefore, compared with the existing technology, the present utility model enables the seat board to support on the chassis and at the same time be in contact with the ground through the cooperation of the seat board and the chassis, greatly reducing the operation difficulty for those with inconvenient mobility to sit on the seat board from the ground and effectively improving the user experience; at the same time, effectively improving the support of the seat board, reducing deformation, and thus increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0021] Figure 1 is the front view structural schematic diagram of the seat elevator of the present utility model;

[0022] Figure 2 is Figure 1 the left view schematic diagram of

[0023] Figure 3 is Figure 1 the rear view schematic diagram of

[0024] Figure 4 is the three-dimensional structural schematic diagram of the seat elevator of the present utility model (the seat is at the highest position);

[0025] Figure 5 is the three-dimensional structural schematic diagram of the seat elevator of the present utility model (the seat is at the lowest position);

[0026] Figure 6 is the three-dimensional structural schematic diagram of the seat elevator of the present utility model (the seat is in the folded state);

[0027] Figure 7 is the enlarged structural schematic diagram of the controller;

[0028] Wherein: 1. Chassis; 10. Cross bar; 11. Vertical bar; 12. Connecting rod; 13. Wheel

[0029] 2. Seat; 20. Backrest; 21. Seat board; c. Groove; 210. Board body; 211. Front end board; 212. Side board; 213. Frame; 22. Armrest

[0030] 3. Driving assembly; 30. Telescopic rod; 300. Inner tube; 301. Outer tube; 31. Motor; 310. Telescopic shaft; 32. Controller; 320. Connecting wire; 33. Push handle Detailed implementation manners

[0031] To make the above objects, features, and advantages of the present application more apparent and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0034] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] In this application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0036] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0037] As Figures 1 to 7 shown, the seat lifter involved in this embodiment includes a chassis 1 supported on the ground, a seat 2 disposed above the chassis 1 and having a lowest position and a highest position, and a driving assembly 3 for driving the seat 2 to move between the lowest position and the highest position.

[0038] Specifically, the chassis 1 includes a cross bar 10 extending left and right, vertical bars 11 fixedly connected to the left and right ends of the cross bar 10 and extending front and back, a connecting rod 12 extending backward and upward obliquely from the cross bar 10, and wheels 13 rotatably connected to the end of the connecting rod 12 away from the cross bar. When the vertical bars 11 are horizontally supported on the ground, the wheels 13 are off the ground; when the vertical bars 11 are tilted forward and upward, the wheels 13 are supported on the ground; in some specific embodiments, there are at least two wheels 13 and they are arranged side by side at intervals left and right. Here, the chassis realizes two working states: one is the fixed state, which is used when the seat needs to be lifted, stored, and transported; the other is the walking state, which is used when the user is sitting on the seat and needs to move.

[0039] In this example, the seat 2 includes a backrest 20 connected to the driving assembly 3, a seat board 21, and armrests 22 on both left and right sides. The seat board 21 and the armrests 22 are respectively rotatably connected to the backrest 20 through pivot shafts, and the seat board 21 and the armrests 22 are turned up and down to open or fold the seat 2; at the same time, the seat board 21 is recessed inward from the bottom to form a groove c matching the chassis. When the seat 2 is in the lowest position, the seat board 21 covers and synchronously supports on the chassis 1 from the groove, and the front end and both left and right sides of the seat board 21 are respectively in contact with the ground.

[0040] In some specific embodiments, the seat board 21 includes a horizontally arranged board body 210, a front end board 211 extending downward from the front end of the board body 210, and side boards 212 extending downward from the left and right sides of the board body 210 respectively. A groove c is formed among the board body 210, the front end board 211 and the side boards 212. The left and right side boards 212 are vertically arranged with respect to the board body 210; an obtuse angle is formed between the front end board 211 and the board body 210.

[0041] For the convenience of implementation, the seat board 21 further includes a rectangular frame 213 fixedly connected to the bottom surface of the board body 210. The thickness of the frame 213 is the same as that of the vertical rod 11. When the seat 2 is in the lowest position, the chassis 1 is located in the space between the frame 213 and the left and right side boards 212. That is to say, when the seat 2 is in the lowest position, the left and right vertical rods 11 are correspondingly inserted between the frame 213 and the left and right side boards 212, and the board body 210 supports itself on the left and right vertical rods 11 from the bottom surface.

[0042] In this example, the drive assembly 3 includes a telescopic rod 30 connected to the chassis 1 and extending up and down, a motor 31 for driving the telescopic rod 30 to perform telescopic movement, and a controller 32 for controlling the motor. The seat 2 is fixedly connected to the telescopic rod 30.

[0043] In some specific embodiments, the telescopic rod 30 extends obliquely backward and upward from the chassis 1; the telescopic rod 30 includes an inner tube 300 detachably connected to the chassis 1 at the lower end, an outer tube 301 sleeved on the inner tube 300 and capable of telescopic movement. The seat 2 is fixedly connected to the outer tube 301; the motor 31 is rotatably connected to the upper end of the telescopic rod 30 through a telescopic shaft 310, and drives the telescopic rod 30 to perform telescopic movement during the telescopic movement of the telescopic shaft 310; the controller 32 is a handheld controller, and the controller 32 is connected to the motor 31 through a telescopic connecting wire 320.

[0044] In addition, the drive assembly 3 further includes a push handle 33 fixed to the upper end of the telescopic rod 30, which is convenient for others to hold the push handle 33 to drive the chassis 1 to switch from the fixed state to the walking state, and push it to walk and move.

[0045] In summary, after adopting this seat lifter, the seat is driven by the driving component to descend to the lowest position, so that the seat board of the seat covers and supports on the chassis. At this time, the front end and the left and right sides of the seat board are in contact with the ground. The user can sit on the seat board from the ground; then the driving component drives the seat to rise to a suitable height for the user to use. Therefore, compared with the prior art, on the one hand, through the cooperation of the seat board and the chassis, the seat board can be supported on the chassis and at the same time be in contact with the ground, greatly reducing the operation difficulty for the disabled to sit on the seat board from the ground and effectively improving the user experience; at the same time, the support of the seat board is effectively improved, reducing deformation and thus increasing the service life; on the other hand, the left and right side plates improve the support of the ground for the board body. At the same time, through the front end plate arranged obliquely, a slope is formed between the board body and the ground, further facilitating the user to sit on the seat board from the ground; on the third hand, the seat can be folded to save packaging space, and at the same time, the seat is designed to be assembled-free, and the seat can be used after being opened; on the fourth hand, by operating the push handle, the chassis realizes two working states: one is the fixed state, which is used when the seat needs to be lifted, stored, and transported; the other is the walking state, which is used when the user is sitting on the seat and needs to move; on the fifth hand, when lifting, it can drive the user to have a tendency to lean back, avoiding the user from falling forward and improving safety; on the sixth hand, the controller adopts an independently powered hand controller, and through a retractable connecting wire, it is convenient for the user to control at any height.

[0046] The above has made a detailed description of the present invention, but the present invention is not limited to the above embodiments. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A seat lifter, which comprises a chassis supported on the ground, a seat disposed above the chassis and having a lowest position and a highest position, and a driving assembly for driving the seat to move between the lowest position and the highest position, wherein the seat comprises a seat board, and is characterized in that: The seat board is recessed inward from the bottom to form a groove matching the chassis. When the seat is in the lowest position, the seat board covers and synchronously supports on the chassis from the groove, and the front end and the left and right sides of the seat board are respectively in contact with the ground.

2. The seat lifter according to claim 1, wherein: The seat board includes a horizontally arranged board body, a front end board extending downward from the front end of the board body, and side boards extending downward from the left and right sides of the board body respectively. The groove is formed among the board body, the front end board and the side boards.

3. The seat lifter according to claim 2, wherein: The left and right side boards are perpendicular to the board body; and / or, an obtuse angle is formed between the front end board and the board body.

4. The seat lifter according to claim 2, characterized in that: The seat board further includes a frame fixedly connected to the bottom surface of the board body. When the seat is in the lowest position, the chassis is located in the space between the frame and the left and right side boards.

5. The seat lifter according to claim 4, wherein: The seat further includes a backrest connected to the driving assembly and armrests on the left and right sides. The frame and the armrests are respectively rotatably connected to the backrest through pivot shafts, and the seat board and the armrests are turned up and down to open or fold the seat.

6. The seat lifter according to claim 4, characterized in that: The chassis includes a horizontally extending cross bar, and vertical bars fixedly connected to the cross bar in parallel at left and right and extending forward and backward. When the seat is in the lowest position, the two left and right vertical bars are correspondingly inserted between the frame and the left and right side boards, and the board body supports on the left and right vertical bars from the bottom surface.

7. The seat lifter according to claim 6, characterized in that: The chassis further includes a connecting rod extending backward and upward obliquely from the cross bar, and wheels rotatably connected to one end of the connecting rod far from the cross bar. When the vertical bars horizontally support on the ground, the wheels are separated from the ground; when the vertical bars tilt upward from back to front, the wheels support on the ground; there are at least two wheels and they are arranged in parallel at left and right with intervals.

8. The seat lifter according to claim 1, characterized in that: The driving assembly includes a telescopic rod connected to the chassis and extending up and down, a motor for driving the telescopic rod to perform telescopic movement, and a controller for controlling the motor. The seat is fixedly connected to the telescopic rod.

9. The seat lifter according to claim 8, wherein: The telescopic rod extends backward and upward obliquely from the chassis; and / or, the telescopic rod includes an inner tube detachably connected to the chassis from the lower end, and an outer tube sleeved on the inner tube and capable of performing telescopic movement. The seat is fixedly connected to the outer tube; and / or, the controller is a handheld controller and is connected to the motor through a retractable connecting line.

10. The seat lifter according to claim 8, characterized in that: The driving assembly further includes a push handle fixed to the upper end of the telescopic rod.

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