Lifting student bed

Abstract

The utility model provides a lifting student bed, including bed frame main body, liftable bed board, lifting mechanism, transmission, drive arrangement and microcontroller, the lifting mechanism is at least two groups of scissors type lifting arm that sets up symmetrically in the bed frame main body, drive arrangement is an electric motor, transmission includes a with electric motor connection lead screw and a nut with the screw thread cooperation of lead screw, the nut is connected with scissors type lifting arm through connecting rod mechanism, microcontroller controls electric motor and drives lead screw rotation, makes the nut produce translation movement, in turn promotes the unfolding or the folding of scissors type lifting arm, to realize the automatic lifting of bed board, the utility model discloses sleep bed and desk function are fused into one, and the easy switching between two kinds of modes is realized through the electric mode, greatly improves the space utilization rate, and the stable structure is convenient to operate, safe and reliable.

Description

Technical Field

[0001] This utility model relates to a height-adjustable student bed. Background Technology

[0002] Student dormitories, single apartments, and other living spaces are usually limited in area. How to efficiently arrange necessary furniture such as beds and desks within such limited space is an urgent problem to be solved.

[0003] In existing technologies, traditional furniture arrangements typically separate the bed and desk into two independent units. This approach occupies a significant amount of floor space, making the room feel cramped, limiting activity space, and resulting in low space utilization.

[0004] To address these issues, some modular furniture designs have emerged, such as beds with a desk underneath. While this design saves floor space to some extent, it also has inherent drawbacks: First, the height of the bed and desk is fixed, and the desk area below often suffers from poor lighting and a cramped feeling, affecting user comfort; second, users need to climb a ladder to get in and out of the bed, which is not only inconvenient but also poses certain safety hazards.

[0005] In addition, there are also some foldable or manually height-adjustable beds. However, these beds usually require manual operation when switching modes, which is cumbersome and laborious, especially for users with less strength. Furthermore, some simple manual height-adjustable or folding mechanisms may lack stability, making them prone to wobbling when used as desks, affecting the user experience, and lacking precise limit protection, making them susceptible to structural damage due to improper operation.

[0006] Therefore, how to provide a height-adjustable student bed that can efficiently utilize space, is easy to operate, and has a stable and safe structure is a technical problem that needs to be solved by those skilled in the art. The technical background section of this utility model aims to describe the current status of the existing technical field. The shortcomings of the existing technology indicate that the content of this section will provide necessary background information for understanding the technical contributions and innovations of this utility model. The signals disclosed in this background section are only intended to increase the understanding of the overall background of this utility model and should not be regarded as implying subjective intent in any form. Utility Model Content

[0007] In view of the above, the purpose of this utility model is to provide a height-adjustable student bed.

[0008] The technical solution adopted to achieve the purpose of this utility model is a height-adjustable student bed, comprising:

[0009] The bed frame body has an internal space for accommodating components;

[0010] The bed board is heightably mounted within the receiving space of the bed frame body and has an upper surface that serves as a work surface;

[0011] A lifting mechanism is provided within the accommodating space and connected between the lower surface of the bed frame body and the bed board. The lifting mechanism includes at least two sets of scissor-type lifting arms symmetrically arranged on the inner sidewall of the bed frame body. Each set of scissor-type lifting arms is composed of multiple intersecting rods that are rotatably connected by a central pivot. The upper end of each scissor-type lifting arm is connected to the lower surface of the bed board, and its lower end is connected to the bottom of the bed frame body.

[0012] The system includes a transmission device and a drive device. The transmission device is connected to the drive device and is also connected to the scissor-type lifting arm. It is used to transmit the power of the drive device to the scissor-type lifting arm to drive the bed board to move up and down within the bed frame body. The drive device is a motor. The transmission device includes a lead screw connected to the output end of the motor and a nut that is threaded into the lead screw. The nut is connected to the lower part of the scissor-type lifting arm through a linkage mechanism. The rotation of the motor drives the lead screw to rotate, thereby causing the nut to translate along the axial direction of the lead screw, which in turn pushes the scissor-type lifting arm to unfold or retract through the linkage mechanism.

[0013] A microcontroller, which is electrically connected to a drive device.

[0014] Furthermore, at the lower end of each set of scissor-type lifting arms, one end is rotatably connected to the bottom of the bed frame body via a fixed pivot, and the other end is slidably connected to the bottom of the bed frame body via a sliding assembly, so as to allow the scissor-type lifting arms to extend and retract horizontally during the lifting process.

[0015] Furthermore, the transmission device includes a synchronous shaft, the axis of which is parallel to the axis of the lead screw; both ends of the synchronous shaft are respectively connected to the corresponding positions of the scissor-type lifting arm to ensure that the scissor-type lifting arm moves synchronously during the lifting process.

[0016] Furthermore, vertical guide rails are fixedly installed on the two opposite inner side walls of the bed frame body; sliders that cooperate with the guide rails are fixedly installed on both sides of the bed board, and the sliders are slidably accommodated in the guide rails to guide and limit the lifting and lowering movement of the bed board and prevent it from shaking.

[0017] Furthermore, it also includes physical operation buttons set on the outer surface of the bed frame body; the bed frame body is also equipped with at least one upper limit switch and one lower limit switch, which are located near the highest and lowest points of the bed board's movement path, respectively; a triggering component that cooperates with the limit switch is provided on the bed board or lifting mechanism. When the bed board moves to the preset upper or lower limit position, the triggering component triggers the corresponding limit switch and sends a signal to the microcontroller to stop the operation of the drive device.

[0018] The beneficial effects of this utility model are:

[0019] 1. High space utilization and strong functional integration: This utility model combines the functions of a bed and a workbench (desk) into one, switching between them via vertical lifting, greatly saving valuable indoor horizontal space. It is especially suitable for living environments with limited space, such as student dormitories and apartments, realizing multifunctional and intensive use of space.

[0020] 2. Convenient, labor-saving, and reliable operation: With a motor-driven transmission device and microcontroller, users can easily achieve automatic raising and lowering of the bed board simply by pressing a physical button. The operation is labor-saving and smooth. Compared to traditional manual folding, this invention offers a high degree of automation and a superior user experience.

[0021] 3. Stable structure and high safety: The symmetrically arranged double scissor-type lifting arms, combined with screw drive and guide rail-slider guiding mechanisms on both sides, ensure that the bed board is stable and does not wobble or tilt during lifting. Meanwhile, the upper and lower limit switches enable automatic limit stopping during the lifting process, effectively preventing damage or safety hazards caused by misoperation due to overtravel, thus ensuring safe use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model;

[0025] In the diagram, 100 is the bed board, 101 is the scissor-type lifting arm, 102 is the accommodating space, 200 is the drive device, and 201 is the transmission device. Detailed Implementation

[0026] The present invention will now be described in this embodiment with reference to the accompanying drawings and some embodiments.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] The following description, in conjunction with the accompanying drawings and embodiments, further illustrates the adjustable student bed of this utility model, aiming to help understand the technical concept and specific implementation of this utility model. However, this description should not be construed as a limitation on the scope of protection of this utility model.

[0029] See Figure 1-2 As shown, the adjustable student bed includes: a bed frame body, a bed board, a lifting mechanism, a transmission device, a drive device, and a microcontroller.

[0030] In this embodiment, the bed frame body is the supporting structure of the entire device, and its interior forms a receiving space 102 for accommodating other components. The bed frame body can be made of metal, high-strength composite board, or other materials with sufficient supporting strength to ensure the stability and durability of the overall structure.

[0031] The bed board 100 is height-adjustable and is housed within the receiving space 102 of the bed frame body. The bed board 100 has a flat upper surface that can be used as a work surface. In the higher position, this upper surface can be used as a desk or workbench; in the lower position, the bed board 100 reverts to its basic function as a bed.

[0032] To achieve smooth lifting and lowering of the bed board 100, this embodiment includes a lifting mechanism. The lifting mechanism is located within the accommodating space 102 and connected between the bed frame body and the lower surface of the bed board 100. Preferably, the lifting mechanism includes at least two sets of scissor-type lifting arms 101 symmetrically arranged on the inner sidewall of the bed frame body. Each set of scissor-type lifting arms 101 consists of multiple intersecting rods rotatably connected by a central pivot. This scissor-type structure enables a large lifting stroke within a small storage space, providing structural stability and strong load-bearing capacity. The upper end of the scissor-type lifting arm 101 connects to the lower surface of the bed board 100, and its lower end connects to the bottom of the bed frame body, thus forming a stable quadrilateral linkage system.

[0033] To ensure smooth movement of the scissor-type lifting arms 101 during deployment and retraction, the lower end of each set of scissor-type lifting arms 101 is rotatably connected to the bottom of the bed frame body via a fixed pivot, while the other end is slidably connected to the bottom of the bed frame body via a sliding assembly. This sliding assembly can be a slider located in a groove at the bottom of the bed frame body, or a roller structure. This "one end fixed, one end sliding" design allows the scissor-type lifting arms 101 to extend and retract horizontally during lifting, avoiding motion interference and structural stress concentration.

[0034] The drive unit 200 provides power to the entire system. In this embodiment, the drive unit 200 is a motor, such as a DC servo motor or a stepper motor, to facilitate precise control via a microcontroller. The transmission unit 201 is responsible for efficiently transmitting the power of the drive unit 200 to the lifting mechanism. Specifically, the transmission unit 201 includes a lead screw connected to the output end of the motor and a nut threadedly engaged with the lead screw. The nut is connected to the lower part of one or two sets of scissor-type lifting arms 101 via a linkage mechanism. Its working principle is as follows: the motor rotates, driving the lead screw to rotate synchronously. Due to the threaded engagement between the nut and the lead screw, the nut will translate along the axial direction of the lead screw. Furthermore, the nut pushes (or pulls) the lower connecting rod of the scissor-type lifting arm 101 through the linkage mechanism, forcing the scissor-type lifting arm 101 to unfold or retract, thereby driving the bed board 100 to achieve smooth upward or downward movement.

[0035] To ensure synchronized movement of the scissor-type lifting arms 101 on both sides and prevent tilting or jamming of the bed board 100 during lifting, the transmission device 201 may further include a synchronous shaft. The axis of this synchronous shaft is parallel to the axis of the lead screw. Both ends of the synchronous shaft are connected to corresponding positions (such as the lower connecting rod) of the scissor-type lifting arms 101 on both sides via gears, chains, or other synchronous transmission methods. When the lead screw drives the lifting arm on one side, this movement is precisely transmitted to the other side via the synchronous shaft, ensuring that the scissor-type lifting arms 101 on both sides lift at exactly the same speed and stroke, thus guaranteeing the smooth movement of the bed board 100.

[0036] To further improve the guidance and stability of the bed board 100 during its lifting and lowering process, guide rails are fixedly installed vertically on the two opposite inner side walls of the bed frame body. Correspondingly, sliders that cooperate with the guide rails are fixedly installed on both sides of the bed board 100. The sliders are slidably accommodated within the guide rails. This cooperative structure of guide rails and sliders effectively guides and limits the lifting and lowering movement of the bed board 100, significantly reducing wobbling of the bed board 100 during use (especially when used as a desk), and improving overall rigidity and stability.

[0037] In this embodiment, the microcontroller is electrically connected to the drive unit 200. The user can send commands to the microcontroller via physical operation buttons (e.g., up, down, and stop buttons) located on the outer surface of the bed frame body. To ensure safe operation and achieve automated limit switching, the bed frame body is also equipped with at least one upper limit switch and one lower limit switch. These two limit switches are respectively installed near the highest and lowest points of the bed board 100's movement path. Simultaneously, a triggering component that cooperates with the limit switches is provided on a follower component of the bed board 100 or the lifting mechanism. When the bed board 100 moves to a preset upper or lower limit position, the triggering component will trigger the corresponding limit switch, which will then send a signal to the microcontroller. Upon receiving this signal, the microcontroller will immediately cut off the power supply to the drive unit 200, stopping its operation and preventing damage due to user error or control system malfunction.

[0038] The working process of this utility model is as follows: When the bed board 100 is in the low position (bed state), if the user wants to raise it to the high position (desk state), they press the raise button. After receiving the command, the microcontroller controls the motor to rotate forward. The motor drives the lead screw to rotate, causing the nut to move along the lead screw and push the scissor-type lifting arm 101 to unfold through the linkage mechanism. Guided by the guide rail and slider, the bed board 100 rises smoothly. When the bed board 100 rises to the preset highest position, the trigger component on it triggers the upper limit switch, the microcontroller stops the motor, and the bed board 100 stops at the highest point. The lowering process is the reverse.

[0039] In summary, this utility model cleverly integrates the functions of a bed and a desk by organically combining a scissor-type lifting mechanism, a lead screw drive, and a micro-control system. It achieves vertical and intensive use of space, has a reasonable structural design, and operates smoothly and reliably, thus possessing high practical value and market prospects.

[0040] The above-described specific embodiments are typical examples of this utility model, but this utility model is not limited thereto. Without departing from the core technical concept of this utility model, reasonable changes can be made to its structure, materials, and control logic, and all improvements based thereon fall within the protection scope of this utility model.

[0041] The control components such as "central control unit" and "microcontroller" mentioned in this technical solution embodiment can be common standard controllers on the market, such as single-chip microcomputers (MCUs), programmable logic controllers (PLCs), or processor-based embedded systems.

[0042] In this technical solution, the function of these control components is to achieve coordinated linkage and logical control between the various structural components or functional modules described above. For those skilled in the art, implementing the control logic of the above components through programming or circuit design based on the structural layout and functional relationships disclosed in this patent is a well-known conventional technical means and not the core innovation of this patent.

[0043] Therefore, the scope of protection of this patent is intended to protect the physical structure and its cooperative working relationship, without involving the specific circuit design inside the control unit, the software program code it executes, or the firmware algorithm itself. Any existing or future-developed control method that can achieve the same control function can be applied to the embodiments of this patent, and this patent does not limit it.

[0044] The specific embodiments described herein are merely illustrative and do not limit the scope of protection of this utility model. Various changes and modifications can be made to the specific embodiments of this utility model without departing from its spirit and essence. All such changes and modifications fall within the scope of this utility model.

[0045] It is worth noting that in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly 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 connection; they can also refer to a mechanical connection. The circuits described in this utility model are all commonly used circuits in the art, and other related components are all commonly used existing components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lifting student bed, characterized in that, include: The bed frame body has an internal space for accommodating components; The bed board is heightably mounted within the receiving space of the bed frame body and has an upper surface that serves as a work surface; A lifting mechanism is provided within the accommodating space and connected between the lower surface of the bed frame body and the bed board. The lifting mechanism includes at least two sets of scissor-type lifting arms symmetrically arranged on the inner sidewall of the bed frame body. Each set of scissor-type lifting arms is composed of multiple intersecting rods that are rotatably connected by a central pivot. The upper end of each scissor-type lifting arm is connected to the lower surface of the bed board, and its lower end is connected to the bottom of the bed frame body. The system includes a transmission device and a drive device. The transmission device is connected to the drive device and is also connected to the scissor-type lifting arm. It is used to transmit the power of the drive device to the scissor-type lifting arm to drive the bed board to move up and down within the bed frame body. The drive device is a motor. The transmission device includes a lead screw connected to the output end of the motor and a nut that is threaded into the lead screw. The nut is connected to the lower part of the scissor-type lifting arm through a linkage mechanism. The rotation of the motor drives the lead screw to rotate, thereby causing the nut to translate along the axial direction of the lead screw, which in turn pushes the scissor-type lifting arm to unfold or retract through the linkage mechanism. A microcontroller, which is electrically connected to a drive device.

2. The lift bed as defined in claim 1, wherein, The lower end of each scissor lift arm is rotatably connected to the bottom of the bed frame body via a fixed pivot, and the other end is slidably connected to the bottom of the bed frame body via a sliding assembly, allowing the scissor lift arm to extend and retract horizontally during lifting.

3. The lift bed as defined in claim 1, wherein, The transmission device includes a synchronous shaft, the axis of which is parallel to the axis of the lead screw; both ends of the synchronous shaft are respectively connected to the corresponding positions of the scissor-type lifting arm to ensure that the scissor-type lifting arm moves synchronously during the lifting process.

4. The lift bed of claim 1, wherein, Vertical guide rails are fixedly installed on the two opposite inner side walls of the bed frame body; sliders that cooperate with the guide rails are fixedly installed on both sides of the bed board. The sliders are slidably accommodated in the guide rails to guide and limit the lifting and lowering movement of the bed board and prevent it from shaking.

5. The lift bed of claim 1, wherein, It also includes physical operation buttons set on the outer surface of the bed frame body; the bed frame body is also equipped with at least one upper limit switch and one lower limit switch, which are located near the highest and lowest points of the bed board's movement path, respectively; a triggering component that cooperates with the limit switch is set on the bed board or lifting mechanism. When the bed board moves to the preset upper or lower limit position, the triggering component triggers the corresponding limit switch and sends a signal to the microcontroller to stop the operation of the drive device.

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