Lifting seat

Abstract

The utility model belongs to the technical field of furniture, and provides a lifting seat, which comprises a seat body, a left armrest and a right armrest, the left armrest and the right armrest are arranged on the seat body, the seat body comprises a base, a seat plate, a telescopic rod and a back plate, and the lifting seat further comprises a power supply module, a lifting mechanism and a lifting mechanism, the controller is arranged in the seat body, the left armrest or the right armrest, and a power input circuit of the controller is electrically connected with a power output circuit of the power module; the driving assembly is arranged in the seat body, a power input circuit of the driving assembly is electrically connected with a power output circuit of the power module, and the driving assembly is in signal connection with the controller; the man-machine interaction module is arranged on the left armrest and / or the right armrest, a power input circuit of the man-machine interaction module is electrically connected with a power output circuit of the power supply module, and the man-machine interaction module is in signal connection with the controller. The lifting seat provided by the utility model is simple in structure and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, specifically to a height-adjustable chair. Background Technology

[0002] Current height-adjustable seats typically rely on cylinders to raise and lower them. However, in actual use, when adjusting the seat height, the user must leave the seat to apply pressure and allow it to rise under the cylinder's action; conversely, when adjusting the seat height, the user must sit on the seat to apply pressure, making the operation cumbersome and inconvenient. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a height-adjustable seat to solve or alleviate the above-mentioned technical problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides a height-adjustable seat, including a seat body and left and right armrests disposed on the seat body. The seat body includes a base, a seat plate, a telescopic rod, and a backrest. A first end of the telescopic rod is fixedly connected to the base, and a second end is fixedly connected to the seat plate. The backrest is disposed on the rear side of the seat plate. The seat also includes:

[0005] A power module is mounted on the seat body;

[0006] A controller is disposed within the seat body, the left armrest, or the right armrest, and the power input circuit of the controller is electrically connected to the power output circuit of the power module.

[0007] A drive assembly is disposed within the seat body. The power input circuit of the drive assembly is electrically connected to the power output circuit of the power module. The drive assembly is signal-connected to the controller. The drive assembly is used to drive the seat plate to perform lifting and lowering movements and to hold the seat plate in a target position.

[0008] A human-computer interaction module is disposed on the left armrest and / or the right armrest. The power input circuit of the human-computer interaction module is electrically connected to the power output circuit of the power supply module, and the human-computer interaction module is signal connected to the controller.

[0009] The human-computer interaction module is used to receive a first input signal and convert the first input signal into a corresponding first electrical signal and transmit it to the controller.

[0010] The controller is used to convert the received first electrical signal into a corresponding first control signal and transmit it to the drive component to control the working state of the drive component.

[0011] Furthermore, the driving component includes:

[0012] A motor is located at the bottom of the base plate. The power input circuit of the motor is electrically connected to the power output circuit of the power module, and the motor is signal-connected to the controller.

[0013] A lead screw is coaxially arranged inside the telescopic rod. The lead screw is rotatably connected to the base plate, and the power input end of the lead screw is drively connected to the power output shaft of the motor.

[0014] A nut is disposed inside the telescopic rod and is fixedly connected to the base. The nut is sleeved on the lead screw and is connected to the lead screw for transmission, so that when the lead screw rotates, it can drive the nut to move along the axis of the lead screw.

[0015] Furthermore, the motor is a servo motor.

[0016] Furthermore, it also includes:

[0017] An airbag is located on the front side of the back panel;

[0018] An air pump, mounted on the seat body, has its power input circuit electrically connected to the power output circuit of the power module, is signal-connected to the controller, and its air outlet is connected to the airbag via a pipe; and

[0019] A solenoid valve is installed on the pipeline. The power input circuit of the solenoid valve is electrically connected to the power output circuit of the power module. The solenoid valve is signal-connected to the controller. The solenoid valve is used to control the opening and closing of the pipeline.

[0020] The human-machine interaction module is also used to receive a second input signal and convert the second input signal into a corresponding second electrical signal and transmit it to the controller. The controller is used to convert the received second electrical signal into a corresponding second control signal and transmit it to the air pump and the solenoid valve to control the working state of the air pump and / or the solenoid valve.

[0021] Furthermore, the airbag has multiple inflation chambers, each of which is connected to the air outlet of the air pump via a pipe, and each of the pipes is equipped with a solenoid valve.

[0022] Furthermore, the left handrail and the right handrail include a connecting post and a handrail support arm disposed at the top of the connecting post;

[0023] The connecting column is hollow and open at both ends. The bottom end of the connecting column is fixedly connected to the seat body. The top end of the connecting column is provided with a connecting hole. The armrest support arm is provided with a corresponding insertion part that matches the connecting hole. The insertion part is interference-fitted with the connecting hole. When the torque applied to the armrest support arm exceeds a preset value, the armrest support arm can rotate around the axis of the insertion part.

[0024] Furthermore, the handrail arm includes a handrail body with a groove and a handrail cover fastened to the handrail body.

[0025] The beneficial effects of this utility model are:

[0026] The adjustable seat provided by this utility model, by setting up a human-machine interaction module, a controller and a drive component, allows for automatic adjustment of the seat height when the height needs to be adjusted. The human-machine interaction module inputs the corresponding input signal, which is then converted into a corresponding electrical signal and transmitted to the controller. The controller converts the received electrical signal into a corresponding control signal and transmits it to the drive component, thereby controlling the working state of the drive component and achieving the purpose of automatically adjusting the height of the adjustable seat. It is simple to operate and convenient to use. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0028] Figure 1 A perspective view of a height-adjustable seat provided according to an embodiment of the present utility model;

[0029] Figure 2 for Figure 1 The exploded view of the lifting seat shown in the first direction;

[0030] Figure 3 for Figure 1 The exploded view of the lifting seat shown in the second direction;

[0031] Figure 4 for Figure 3 An enlarged view of part A shown;

[0032] Figure 5 for Figure 1 An exploded view of the height-adjustable seat is shown.

[0033] Figure label:

[0034] 110. Base; 120. Seat plate; 131. Outer rod; 132. Inner rod; 140. Backrest plate; 150. Housing; 160. Sleeve; 210. Left armrest; 220. Right armrest; 201. Connecting column; 202. Armrest body; 203. Armrest cover; 310. Battery; 320. Protection control board; 410. Controller; 510. Motor; 520. Lead screw; 530. Nut; 610. Touch screen; 710. Airbag; 720. Air pump; 730. Solenoid valve. Detailed Implementation

[0035] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0036] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] like Figure 1-5 As shown, this utility model provides a liftable seat, including a seat body and a left armrest 210 and a right armrest 220 disposed on the seat body.

[0042] The seat body includes a base 110, a seat plate 120, a telescopic rod, and a backrest 140. The first end of the telescopic rod is fixedly connected to the base 110, and the second end is fixedly connected to the seat plate 120. Specifically, the telescopic rod includes an inner rod 132 and an outer rod 131 coaxially sleeved around and slidably connected to the inner rod 132. In this embodiment, the inner rod 132 is fixedly connected to the seat plate 120, and the outer rod 131 is fixedly connected to the base 110. The backrest 140 is located on the rear side of the seat plate 120.

[0043] The height-adjustable seat provided by this utility model also includes a power module, a controller 410, a drive component, and a human-machine interaction module.

[0044] The power module is located on the seat body. The controller 410 is located in the seat body, the left armrest 210 or the right armrest 220, and the power input circuit of the controller 410 is electrically connected to the power output circuit of the power module.

[0045] The drive assembly is located inside the seat body. The circuit input circuit of the drive assembly is electrically connected to the power output circuit of the power module. The drive assembly is signal connected to the controller 410. The drive assembly is used to drive the seat plate 120 to perform lifting and lowering movements and can hold the seat plate 120 in the target position to achieve the purpose of adjusting the height of the seat plate 120. This allows the seat plate 120 of the height-adjustable seat to be adjusted according to the current user's height and usage habits, thereby improving the versatility of the height-adjustable seat.

[0046] The human-machine interface module is located on the left armrest 210 and / or the right armrest 220. Specifically, in this embodiment, the human-machine interface module is located on the left armrest 210. The circuit input circuit of the human-machine interface module is electrically connected to the circuit output circuit of the power supply module, and the human-machine interface module is signal-connected to the controller 410.

[0047] The human-computer interaction module is used to receive a first input signal and convert the first input signal into a corresponding first electrical signal and transmit it to the controller 410. The controller 410 is used to convert the received first electrical signal into a corresponding first control signal and transmit it to the drive component to control the working state of the drive component.

[0048] The height-adjustable seat provided by this utility model, by setting up a human-machine interaction module, a controller 410 and a drive component, allows for automatic adjustment of the height of the seat when the height needs to be adjusted. The human-machine interaction module inputs the corresponding information, converts the received input signal into a corresponding electrical signal and transmits it to the controller 410. The controller 410 converts the received electrical signal into a corresponding control signal and transmits it to the drive component, thereby controlling the working state of the drive component and achieving the purpose of automatically adjusting the height of the seat. It is simple to operate and convenient to use.

[0049] The human-computer interaction module can be a button, toggle switch, or touch screen 610 used to control the lifting and lowering of the drive component drive base plate, and the controller can be a relay or a microcontroller.

[0050] like Figures 3-5 As shown, in this embodiment, the power module includes a battery 310 and a protection control board 320 disposed on the seat body.

[0051] Specifically, a housing 150 is provided at the bottom of the base plate 120, and the battery 310 and the protection control board 320 are disposed inside the housing 150. The battery 310 is used to store electrical energy and transmit the stored electrical energy to the controller 410, the human-machine interaction module and the drive components, so as to provide the necessary electrical energy for the controller 410, the human-machine interaction module and the drive components.

[0052] The protection control board 320 is used to monitor the status of the battery 310 in real time and ensure the safe operation of the battery 310 through multiple protection mechanisms to extend the service life of the battery 310. For example, it provides overcharge protection, over-discharge protection, short circuit protection, overcurrent protection, temperature monitoring and protection, and equalization of cell voltage for the battery 310.

[0053] Specifically, overcharge protection and over-discharge protection refer to the protection control board 320 automatically cutting off the circuit when the charging voltage or discharging voltage exceeds the safety threshold, in order to prevent the battery 310 from being damaged due to abnormal voltage. Short circuit and overcurrent protection refer to the protection control board 320 quickly (usually within milliseconds) cutting off the current when the circuit is short-circuited or the current exceeds the set value, in order to avoid the battery 310 overheating, catching fire, or being damaged.

[0054] Temperature detection and protection refers to real-time monitoring of the battery 310's temperature using a temperature sensor. When the temperature exceeds a first preset value (e.g., 60℃) or falls below a second preset value (e.g., 0℃), the charging and discharging of the battery 310 is limited to prevent electrolyte decomposition or a surge in internal resistance due to extreme temperatures. The first preset value is greater than the second preset value. Cell voltage balancing refers to the protection control board 320 adjusting the voltage differences between individual cells using active or passive balancing techniques to avoid the "weakest link" effect that reduces overall capacity. The balancing accuracy is typically ±10mV.

[0055] The human-computer interaction module includes a touch screen 610, which is mounted on either the left armrest 210 or the right armrest 220. A controller 410 is mounted within either the left armrest 210 or the right armrest 220. Preferably, when the touch screen 610 is mounted on the left armrest 210, the controller 410 is mounted within the left armrest 210; when the touch screen 610 is mounted on the right armrest 220, the controller 410 is mounted within the right armrest 220, to save wiring and facilitate assembly.

[0056] like Figure 5 As shown, the drive assembly includes a motor 510, a lead screw 520, and a nut 530.

[0057] The motor 510 is mounted at the bottom of the base plate 120. The power input circuit of the motor 510 is electrically connected to the power output circuit of the power module, and the motor 510 is signal-connected to the controller 410. The lead screw 520 is coaxially mounted inside the telescopic rod and is rotatably connected to the base plate 120. The power input end of the lead screw 520 is drive-connected to the power output shaft of the motor 510. In this embodiment, the lead screw 520 is coaxially mounted with the power output shaft of the motor 510 and is drive-connected to the power output shaft of the motor 510.

[0058] A nut 530 is disposed inside the telescopic rod and is fixedly connected to the base 110. Specifically, in this embodiment, a sleeve 160 is coaxially disposed inside the telescopic rod, the bottom end of the sleeve 160 is fixedly connected to the base 110, and the nut 530 is fixedly connected to the sleeve 160. The nut 530 is sleeved on the lead screw 520 and is drivenly connected to the lead screw 520 so that when the lead screw 520 rotates, it can drive the nut 530 to move along the axis of the lead screw 520.

[0059] During operation, the motor 510 drives the lead screw 520 to rotate, and the lead screw 520 drives the nut 530 to move, thereby driving the base plate 120 to perform lifting and lowering movements. Specifically, when the motor 510 drives the lead screw 520 to rotate in the forward direction, the base plate 120 is driven to rise; when the motor 510 drives the lead screw 520 to rotate in the reverse direction, the base plate 120 is driven to fall.

[0060] Preferably, the motor 510 is a servo motor 510, so as to facilitate the control of the lead screw 520 rotation and to facilitate the locking of the lead screw 520 when the seat plate 120 is adjusted to the target position.

[0061] like Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, in this embodiment, an airbag 710, an air pump 720, and a solenoid valve 730 are also included.

[0062] The airbag 710 is located on the front side of the backrest 140. An air pump 720 is mounted on the seat body; its power input circuit is electrically connected to the power output circuit of the power module, and it is also signal-connected to the controller 410. The air outlet of the air pump 720 is connected to the airbag 710 via a pipe, and the air pump 720 is used to inflate the airbag 710. A solenoid valve 730 is mounted on the pipe; its power input circuit is electrically connected to the power output circuit of the power module, and it is also signal-connected to the controller 410. The solenoid valve 730 is used to control the opening and closing of the pipe.

[0063] The human-machine interaction module is also used to receive the second input signal and convert the second input signal into a corresponding second electrical signal and transmit it to the controller 410. The controller 410 converts the received second electrical signal into a corresponding second control signal to control the working state of the air pump 720 and / or the solenoid valve 730.

[0064] Specifically, when it is necessary to inflate the airbag 710, an inflation signal is input through the human-machine interface module. The human-machine interface module converts the received inflation signal into a corresponding electrical signal and transmits it to the controller 410. The controller 410 converts the received electrical signal into a corresponding control signal and transmits it to the air pump 720 and the solenoid valve 730, so that the air pump 720 and the solenoid valve 730 open, thereby achieving the purpose of inflating the airbag 710 with gas.

[0065] When it is necessary to release the gas in the airbag 710, a release signal is input through the human-machine interface module. The human-machine interface module converts the received release signal into a corresponding electrical signal and transmits it to the controller 410. The controller 410 converts the received electrical signal into a corresponding control signal and transmits it to the solenoid valve 730, so that the solenoid valve 730 opens, thereby achieving the purpose of releasing the gas.

[0066] In this embodiment, air is pumped into the airbag 710 by the air pump 720 to support the user's back, thereby improving the user's experience. At the same time, the hardness and support position of the airbag 710 can be changed according to the amount of air injected into it, thereby improving its versatility.

[0067] Preferably, the airbag 710 has multiple inflation chambers, each of which is connected to the air outlet of the air pump 720 via a pipe, and each pipe is equipped with a solenoid valve 730. Specifically, in this embodiment, the airbag 710 has four inflation chambers, and correspondingly, four pipes and four solenoid valves 730 are also provided.

[0068] When it is necessary to inject gas into the target inflation chamber, the corresponding inflation signal is input through the human-machine interface module. The human-machine interface module converts the received inflation signal into a corresponding electrical signal and transmits it to the controller 410. The controller 410 converts the received electrical signal into a corresponding control signal and transmits it to the corresponding air pump 720 and solenoid valve 730, so that the air pump 720 and solenoid valve 730 open, thereby achieving the purpose of injecting gas into the target inflation chamber.

[0069] When it is necessary to release the gas in the target inflation chamber, the corresponding deflation signal is input through the human-machine interface module. The human-machine interface module converts the received deflation signal into a corresponding electrical signal and transmits it to the controller 410. The controller 410 converts the received electrical signal into a corresponding control signal and transmits it to the corresponding solenoid valve 730, so that the solenoid valve 730 opens, thereby achieving the purpose of deflation of the target inflation chamber.

[0070] In this embodiment, by filling multiple inflation chambers with gas of different volumes, the support orientation of the airbag 710 can be better changed, thereby enabling the airbag 710 to better support the user according to the user's current usage habits, and thus further improving its versatility.

[0071] like Figure 2 As shown, in this embodiment, the left armrest 210 and the right armrest 220 include a connecting post 201 and an armrest arm disposed at the top of the connecting post 201. The connecting post 201 is hollow and open at both ends to provide a channel for cables, thereby facilitating cable assembly and disassembly. The bottom end of the connecting post 201 is fixedly connected to the seat body, and the top end of the connecting post 201 is provided with a connecting socket. The armrest arm is correspondingly provided with a plug-in part adapted to the connecting socket. The plug-in part and the connecting socket are interference-fitted, and when the torque applied to the armrest arm exceeds a preset value, the armrest arm can rotate around the axis of the plug-in part, so as to adjust the angle between the two armrest arms according to the actual situation of the current patient (height, weight, usage habits, etc.), thereby improving its versatility.

[0072] like Figure 2As shown, in this embodiment, the handrail arm includes a handrail body 202 with a groove and a handrail cover 203 fastened to the handrail body 202. In this structure, a receiving cavity is formed between the handrail body 202 and the handrail cover 203 for storing items and / or installing components such as the controller 410.

[0073] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A height-adjustable seat, comprising a seat body and a left armrest and a right armrest disposed on the seat body, the seat body comprising a base, a seat plate, a telescopic rod, and a backrest, wherein a first end of the telescopic rod is fixedly connected to the base and a second end is fixedly connected to the seat plate, and the backrest is disposed on the rear side of the seat plate, characterized in that, Also includes: A power module is mounted on the seat body; A controller is disposed within the seat body, the left armrest, or the right armrest, and the power input circuit of the controller is electrically connected to the power output circuit of the power module. A drive assembly is disposed within the seat body. The power input circuit of the drive assembly is electrically connected to the power output circuit of the power module. The drive assembly is signal-connected to the controller. The drive assembly is used to drive the seat plate to perform lifting and lowering movements and to hold the seat plate in a target position. A human-computer interaction module is disposed on the left armrest and / or the right armrest. The power input circuit of the human-computer interaction module is electrically connected to the power output circuit of the power supply module, and the human-computer interaction module is signal connected to the controller. The human-computer interaction module is used to receive a first input signal and convert the first input signal into a corresponding first electrical signal and transmit it to the controller. The controller is used to convert the received first electrical signal into a corresponding first control signal and transmit it to the drive component to control the working state of the drive component.

2. The adjustable seat according to claim 1, characterized in that, The driving component includes: A motor is located at the bottom of the base plate. The power input circuit of the motor is electrically connected to the power output circuit of the power module, and the motor is signal-connected to the controller. A lead screw is coaxially arranged inside the telescopic rod. The lead screw is rotatably connected to the base plate, and the power input end of the lead screw is drively connected to the power output shaft of the motor. A nut is disposed inside the telescopic rod and is fixedly connected to the base. The nut is sleeved on the lead screw and is connected to the lead screw for transmission, so that when the lead screw rotates, it can drive the nut to move along the axis of the lead screw.

3. The height-adjustable seat according to claim 2, characterized in that, The motor is a servo motor.

4. The adjustable seat according to any one of claims 1-3, characterized in that, Also includes: An airbag is located on the front side of the back panel; An air pump, mounted on the seat body, has its power input circuit electrically connected to the power output circuit of the power module, is signal-connected to the controller, and its air outlet is connected to the airbag via a pipe; and A solenoid valve is installed on the pipeline. The power input circuit of the solenoid valve is electrically connected to the power output circuit of the power module. The solenoid valve is signal-connected to the controller. The solenoid valve is used to control the opening and closing of the pipeline. The human-machine interaction module is also used to receive a second input signal and convert the second input signal into a corresponding second electrical signal and transmit it to the controller. The controller is used to convert the received second electrical signal into a corresponding second control signal and transmit it to the air pump and the solenoid valve to control the working state of the air pump and / or the solenoid valve.

5. The height-adjustable seat according to claim 4, characterized in that, The airbag has multiple inflation chambers, each of which is connected to the air outlet of the air pump via a pipe, and each of the pipes is equipped with a solenoid valve.

6. The adjustable seat according to claim 1, 2, 3 or 5, characterized in that, The left handrail and the right handrail each include a connecting post and a handrail support arm disposed at the top of the connecting post. The connecting column is hollow and open at both ends. The bottom end of the connecting column is fixedly connected to the seat body. The top end of the connecting column is provided with a connecting hole. The armrest support arm is provided with a corresponding insertion part that matches the connecting hole. The insertion part is interference-fitted with the connecting hole. When the torque applied to the armrest support arm exceeds a preset value, the armrest support arm can rotate around the axis of the insertion part.

7. The adjustable seat according to claim 6, characterized in that, The handrail arm includes a handrail body with a groove and a handrail cover fastened to the handrail body.

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