A telescopic rotating table and chair device and a method of operating the same

Abstract

The present application relates to a telescopic rotary table and chair device and its operation method, belonging to the field of outdoor operation equipment. The device aims to solve the problem of single function and lack of safety auxiliary ability of existing folding table and chair. Its technical scheme includes telescopic column assembly, adjustable angle table board and base support structure, and height and angle adjustment is realized through mechanical linkage. The device integrates intelligent circulating light to provide visual reference for operation; and built-in vibration sensing and early warning module, through vibration sensor array to collect environmental signals, after analysis by micro signal processing unit, to execute graded early warning. The device integrates portability, stability, multi-dimensional adjustment, improves operation comfort and equipment adaptability, provides visual reference and hidden safety protection, and enhances the environmental alerting ability of users in complex environment.

Description

Technical Field

[0001] This invention belongs to the field of outdoor work equipment and relates to a telescopic rotating table and chair device and its operation method. Background Technology

[0002] In outdoor activities, camping, and temporary office settings, people often need to perform various tasks in the wilderness where there is a lack of fixed infrastructure. These tasks typically include mapping, operating electronic devices, conducting long-distance observations, and calibrating precision instruments.

[0003] However, existing folding tables and chairs have significant limitations in practical applications. First, most products have overly simple structures with fixed tabletop angles, making it difficult to adapt to the needs of users in different working postures, such as sitting or lying down. Second, existing equipment lacks functional modules directly related to specific tasks, such as necessary reference points and environmental warning aids. Although some multi-functional tables have angle adjustment functions, they often fail to meet professional standards in terms of durability, concealment, and resistance to harsh environments, making it difficult to operate stably in severe environments such as sandstorms, rain, and extreme temperatures.

[0004] Especially in tasks requiring long-term stationing or focused work, users often overlook potential risks in their surroundings. Current warning devices are mostly standalone units, which are not only inconvenient to carry but also lack coordination with the tables and chairs themselves, often resulting in untimely warning responses.

[0005] Therefore, there is an urgent need to develop a new type of telescopic table and chair device that integrates portability, stability, multifunctionality, and concealed warning capabilities. This device should have flexible height and angle adjustment functions and enhance operational safety through embedded technologies. For example, it can utilize a single-chip microcomputer (SCM) for environmental warning signal processing and pulse width modulation (PWM) technology to control lighting modes to assist visual reference positioning, thereby solving the problems of limited functionality and insufficient safety assistance capabilities in existing products. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a telescopic rotating table and chair device and its operation method.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A telescopic rotating table and chair device includes a telescopic column assembly 1, an adjustable angle tabletop 2, and a base support structure, wherein: The telescopic column assembly 1 consists of interlocking table leg shells, a telescopic rod, and a stretchable inner core located inside the telescopic rod. The telescopic rod is provided with a buckle pin, and the table leg shell is provided with a height side hole. The stretchable inner core is linked to the buckle pin by pressing a button, so that the buckle pin retracts to release the lock, or the buckle pin pops out and embeds into the height side hole to achieve height locking. The adjustable angle tabletop 2 is rotatably connected to the top of the telescopic column assembly 1 via a horizontal rotating shaft; the bottom of the adjustable angle tabletop 2 is provided with a slide rail, and a slider is slidably connected on the slide rail. The slider is connected to a limiting groove on the side wall of the telescopic column assembly 1 via a support rod; one end of the support rod is hinged to the slider, and the other end is driven by a pull rod to engage with different positions in the limiting groove, thereby locking the tilt angle of the adjustable angle tabletop 2 relative to the telescopic column assembly 1. The adjustable angle tabletop 2 is equipped with an intelligent circulating light 4 and a vibration sensing and early warning module. The vibration sensing and early warning module includes a vibration sensor array, a micro signal processing unit, and an alarm execution unit distributed at the bottom of the adjustable angle tabletop 2.

[0008] Furthermore, the vibration sensor array includes four sets of piezoelectric vibration sensors, which are arranged in a rectangular pattern. Each set of piezoelectric vibration sensors is electrically connected in sequence to an independent signal amplification chip and an active filter circuit, which are used to collect ground vibration signals and filter out invalid frequency signals below 5Hz and above 500Hz.

[0009] Furthermore, the micro signal processing unit includes a single-chip microcomputer (SCM) and a multiplexer; the multiplexer is connected to the output terminals of each of the active filter circuits, and its output terminal is connected to the analog-to-digital converter (ADC) sampling port of the single-chip microcomputer (SCM); the single-chip microcomputer (SCM) is also electrically connected to a sensitivity adjustment knob, used to determine the warning sensitivity level based on the voltage divider signal of the sensitivity adjustment knob.

[0010] Furthermore, the microcontroller SCM has a built-in vibration feature library, which is used to perform fusion analysis on the sampled signals to distinguish the target source, and calculate the distance and direction of movement of the target based on the signal strength difference between each group of piezoelectric vibration sensors.

[0011] Furthermore, the control circuit of the intelligent cycle light 4 includes a lithium battery, a voltage regulator module, a microcontroller, a constant current driver chip, and a group of light-emitting diodes (LEDs). The output terminal of the lithium battery is connected to the power supply terminals of the microcontroller and the constant current driver chip through the voltage regulator module. The signal output terminal of the microcontroller is connected to the constant current driver chip, and the constant current driver chip is controlled by a pulse width modulation (PWM) signal to drive the LED group to perform different flashing modes.

[0012] Furthermore, the alarm execution unit is electrically connected to the micro signal processing unit, and its early warning methods include: Low-risk targets trigger a weak flicker in the intelligent cycle light 4; A medium-risk target triggers the smart cycle light 4 to flash slowly and in conjunction with the adjustable angle table 2 to generate vibration, the vibration intensity being less than or equal to 0.5G; A high-risk target triggers the intelligent cycle light 4 to flash rapidly and the adjustable angle table 2 to vibrate continuously as an alarm, and simultaneously sends an audio prompt through wireless communication with external headphones.

[0013] Furthermore, the base support structure includes a foldable leg frame 3 made of 6061 aluminum alloy.

[0014] Furthermore, the surface of the adjustable angle tabletop 2 is provided with a protective coating, and its edges are provided with anti-slip textures and silicone anti-slip strips.

[0015] Furthermore, the height adjustment range of the telescopic column assembly 1 is 50cm to 90cm.

[0016] An operating method based on the aforementioned telescopic rotating table and chair device includes the following steps: Unfold the base support structure to stably support it on the ground; The height of the device can be adjusted by pressing the button on the telescopic column assembly 1; The lever is operated to drive the slider to move along the slide rail, so that the support rod is engaged in the target position groove to set the angle of the adjustable angle table 2; The early warning module is activated, and vibration signals are collected through the vibration sensor array. The micro signal processing unit performs signal processing and risk level determination, and the alarm execution unit executes the corresponding graded early warning action based on the determination result.

[0017] The beneficial effects of this invention are as follows: (1) This invention achieves multi-dimensional adjustment of height and angle through the combination of telescopic column assembly and adjustable angle table. Users can flexibly adjust the table according to terrain undulations or different working postures, which significantly improves the comfort and equipment adaptability when working in complex outdoor environments.

[0018] (2) The built-in intelligent circulating light can provide a stable visual reference point. Through the precise control of the microcontroller main control and constant current drive chip, the light can switch between multiple modes, providing clear horizontal reference and guidance for operators in tasks with insufficient light or requiring visual calibration, thereby improving work efficiency.

[0019] (3) This invention integrates a vibration sensing and early warning module, and utilizes a distributed vibration sensor array and signal processing system to achieve real-time monitoring of surrounding ground vibrations. The system can effectively distinguish target sources and determine distance and direction, providing concealed safety protection while workers are focused on their tasks, and enhancing environmental vigilance capabilities.

[0020] (4) Through a tiered alarm design, the device can trigger visual flashing, desktop vibration or external wireless prompts according to the level of risk. This tiered warning method not only ensures the effectiveness of information transmission, but also avoids the exposure of location due to abrupt sound and light signals, thus taking into account both warning and concealment.

[0021] (5) The mechanical structure adopts a tension inner core linkage buckle pin, as well as a locking method of slide rail, slider and support rod, to ensure that the device has good load-bearing capacity and structural stability after being adjusted to the target state, and to avoid shaking or displacement during use.

[0022] (6) The main structure is made of high-strength aluminum alloy, combined with foldable legs and a collapsible telescopic rod design, which reduces the weight of the device while ensuring durability. The device is compact when collapsed, which greatly facilitates carrying and transporting it by vehicle during outdoor activities.

[0023] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a magnified view of a portion of the tabletop rotation mechanism; Figure 3 This is a schematic diagram of the device in its folded and stored state. Figure 4 Here is the flowchart of the miniature signal processing unit algorithm; Figure 5 Circuit diagram for intelligent cycle light; Figure 6 This is a circuit diagram of a vibration sensor array.

[0025] Attached label: 1-Telescopic column assembly; 2-Adjustable angle tabletop; 3-Foldable leg support; 4-Intelligent circulating light. Detailed Implementation

[0026] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0028] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Example 1 This invention discloses a telescopic rotating table and chair device, the core frame of which consists of a telescopic column assembly 1, an adjustable-angle tabletop 2, and a base support structure. The base support structure includes foldable legs 3, which are made of high-strength 6061 aluminum alloy and are connected to the bottom of the telescopic column assembly 1 via hinges. When the device is in use, the foldable legs 3 extend outwards, forming a stable three- or four-legged support structure, such as... Figure 1 As shown. When the device needs to be transported, the foldable leg frame 3 can be folded up or down, fitting snugly against the outside of the telescopic column assembly 1, forming a compact storage shape, such as... Figure 3 As shown.

[0030] The telescopic column assembly 1 is the core of the height adjustment system. This assembly consists of a table leg shell, a telescopic rod, and a tension core located inside the telescopic rod. The table leg shell has multiple height-adjustable side holes along its axial direction. The telescopic rod is equipped with a spring-supported latching pin. The tension core is linked to the latching pin via a top-pressing button. When the user presses the button, the tension core depresses, causing the latching pin to retract inward and disengage from the current height-adjustable side hole, allowing the telescopic rod to slide within the table leg shell. After adjusting to the target height between 50cm and 90cm, releasing the button causes the latching pin to spring out under spring force and engage with the corresponding height-adjustable side hole, thus locking the height.

[0031] The adjustable-angle tabletop 2 is rotatably connected to the top of the telescopic column assembly 1 via a horizontal rotating shaft. (Reference) Figure 2 The bottom of the tabletop has a slide rail parallel to the desktop, and a slider is slidably connected to the slide rail. One end of the slider is hinged to a support rod, and the other end of the support rod extends into a limiting groove on the side wall of the telescopic column assembly 1. The limiting groove has multiple sets of stop slots. The user operates the pull rod connected to the slider to drive the slider to move along the slide rail, thereby changing the support angle of the support rod. When the other end of the support rod is engaged in a specific stop slot, the tilt angle of the adjustable angle tabletop 2 relative to the ground can be locked.

[0032] Example 2 An intelligent circulating light 4 is embedded in the geometric center area of ​​the adjustable-angle tabletop 2. (Reference) Figure 5The core of its control circuit is a microcontroller, powered by a lithium battery through a voltage regulator module. The voltage regulator module converts the fluctuating voltage of the lithium battery into stable DC power, which is then supplied to the microcontroller and the constant current driver chip. The signal output terminal of the microcontroller is connected to the constant current driver chip. The microcontroller outputs a pulse width modulation (PWM) signal according to a preset program, and the constant current driver chip adjusts the current flowing through the light-emitting diode (LED) group according to the duty cycle of this signal. This connection method allows the LED group to execute constant light, strobe, slow blink, or fast blink modes according to instructions, thus serving as a visual reference point during operation.

[0033] Meanwhile, an array of vibration sensors is distributed within the cavity at the bottom of the adjustable-angle tabletop 2. (Reference) Figure 6 The array comprises four rectangularly arranged piezoelectric vibration sensors. Each sensor group is independently and electrically connected to a signal amplification chip and an active filter circuit. The piezoelectric vibration sensors detect mechanical vibrations from the ground and generate a weak current. The signal amplification chip amplifies this signal with low noise, and then the active filter circuit filters out invalid frequency signals below 5Hz and above 500Hz, ensuring that the data processed subsequently is valid vibration information.

[0034] Example 3 When the device activates its warning function, its internal micro signal processing unit begins operation. The micro signal processing unit includes a single-chip microcomputer (SCM) and a multiplexer. The multiplexer is connected to the output of each active filter circuit, and its output is connected to the analog-to-digital converter (ADC) sampling port of the SCM.

[0035] refer to Figure 4 The algorithm flow involves the microcontroller-controlled vibration sensor (SCM) first reading the voltage divider signal from the sensitivity adjustment knob to determine the current warning sensitivity level. Then, the SCM controls a multiplexer to sample the four processed vibration signals in turn. The sampled data is then matched and analyzed against samples in the SCM's built-in vibration feature library.

[0036] The specific alert execution logic is as follows: When the matching result indicates environmental interference or a weak signal at a distance, it is determined to be a low-risk target. The microcontroller SCM drives the intelligent cycle light 4 to perform a weak strobe prompt through the PWM signal. When a target is identified as a medium-range moving target, it is classified as a medium-risk target. The microcontroller SCM drives the intelligent cycle light 4 to flash slowly, and at the same time, the vibration motor installed at the bottom of the table is activated, so that the adjustable table 2 generates physical vibration with an intensity of less than or equal to 0.5G to remind the user to pay attention. When a target is detected to be rapidly approaching and has obvious features, it is identified as a high-risk target. The microcontroller SCM drives the intelligent cycle light 4 to flash rapidly, the tabletop to vibrate continuously, and simultaneously transmits a high-frequency audio prompt through the Bluetooth wireless communication module to the external headphones, thereby achieving multi-dimensional notification without revealing the location.

[0037] Example 4 First, the user unfolds the foldable leg support 3 of the base support structure, stably supports it on the ground, and adjusts it to a horizontal position.

[0038] Next, press the button on the top of the telescopic column assembly 1 to adjust the overall height of the device by stretching or retracting the telescopic rod until the latching pin locks in the target height side hole.

[0039] Next, adjust the position of the slider on the slide rail using the pull rod, so that the support rod supports the adjustable angle tabletop 2, adjusts it to the desired working angle, and locks it. At this time, the user can turn on the intelligent cycle light 4 as a horizontal reference for drawing or calibration.

[0040] Finally, rotate the sensitivity adjustment knob according to environmental requirements to activate the vibration sensing and early warning module. The system will automatically execute the algorithm process described in Example 3 to monitor ground vibrations within a 15m radius. If a target approaches, the device will issue a tiered early warning via flashing lights, table vibration, or a wireless earphone signal.

[0041] The adjustable tabletop 2 in the above embodiment also has a protective coating on its surface, and its edges are provided with anti-slip textures and silicone anti-slip strips to ensure that instruments or tools on the table will not slip due to gravity or slight vibration when used at an angle. The device adopts a modular design, with clear connections between its parts, and the use of high-strength aluminum alloy ensures a balance between lightweight and durability.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A telescopic rotating table and chair device, characterized in that: Includes a telescopic column assembly (1), an adjustable angle tabletop (2), and a base support structure, wherein: The telescopic column assembly (1) consists of interlocking table leg shells, telescopic rods, and a stretching core located inside the telescopic rods. The telescopic rods are provided with buckle pins, and the table leg shells are provided with height side holes. The stretching core is linked to the buckle pins by pressing a button, so that the buckle pins retract to release the lock, or so that the buckle pins pop out and embed into the height side holes to achieve height locking. The adjustable angle tabletop (2) is rotatably connected to the top of the telescopic column assembly (1) via a horizontal rotating shaft; the bottom of the adjustable angle tabletop (2) is provided with a slide rail, and a slider is slidably connected on the slide rail. The slider is connected to the limiting groove on the side wall of the telescopic column assembly (1) via a support rod; one end of the support rod is hinged to the slider, and the other end is driven by a pull rod to engage with different positions in the limiting groove, thereby locking the tilt angle of the adjustable angle tabletop (2) relative to the telescopic column assembly (1); The adjustable angle tabletop (2) is equipped with an intelligent circulating light (4) and a vibration sensing and early warning module; The vibration sensing and early warning module includes a vibration sensor array, a micro signal processing unit, and an alarm execution unit distributed at the bottom of the adjustable angle tabletop (2).

2. The telescopic rotating table and chair device according to claim 1, characterized in that: The vibration sensor array includes four sets of piezoelectric vibration sensors, which are arranged in a rectangular pattern. Each set of piezoelectric vibration sensors is electrically connected in sequence to an independent signal amplification chip and an active filter circuit, which are used to collect ground vibration signals and filter out invalid frequency signals below 5Hz and above 500Hz.

3. The telescopic rotating table and chair device according to claim 2, characterized in that: The micro signal processing unit includes a microcontroller (SCM) and a multiplexer; the multiplexer is connected to the output of each of the active filter circuits, and its output is connected to the analog-to-digital converter (ADC) sampling port of the microcontroller (SCM); the microcontroller (SCM) is also electrically connected to a sensitivity adjustment knob, which is used to determine the warning sensitivity level based on the voltage divider signal of the sensitivity adjustment knob.

4. The telescopic rotating table and chair device according to claim 1, characterized in that: The microcontroller (SCM) has a built-in vibration feature library, which is used to perform fusion analysis on the sampled signals to distinguish the target source, and calculate the distance and direction of movement of the target based on the signal strength difference between the piezoelectric vibration sensors in each group.

5. The telescopic rotating table and chair device according to claim 4, characterized in that: The control circuit of the intelligent cycle lamp (4) includes a lithium battery, a voltage regulator module, a microcontroller, a constant current drive chip, and an LED lamp bead group; the output terminal of the lithium battery is connected to the power supply terminals of the microcontroller and the constant current drive chip through the voltage regulator module; the signal output terminal of the microcontroller is connected to the constant current drive chip, and the constant current drive chip is controlled by the pulse width modulation (PWM) signal to drive the LED lamp bead group to perform different flashing modes.

6. The telescopic rotating table and chair device according to claim 1, characterized in that: The alarm execution unit is electrically connected to the micro signal processing unit, and its early warning methods include: Low-risk targets trigger the intelligent cycle light (4) to flicker weakly; The medium-risk target triggers the intelligent circulating light (4) to flash slowly and the adjustable angle table (2) to vibrate, the vibration intensity being less than or equal to 0.5G; A high-risk target triggers the intelligent cycle light (4) to flash rapidly and the adjustable angle table (2) to vibrate continuously as an alarm, and simultaneously sends an audio prompt through wireless communication with external headphones.

7. The telescopic rotating table and chair device according to claim 1, characterized in that: The base support structure includes a foldable leg frame (3) made of 6061 aluminum alloy.

8. The telescopic rotating table and chair device according to claim 1, characterized in that: The adjustable angle tabletop (2) has a protective coating on its surface and anti-slip texture and silicone anti-slip strips on its edges.

9. The telescopic rotating table and chair device according to claim 1, characterized in that: The height adjustment range of the telescopic column assembly (1) is 50cm to 90cm.

10. A method of operating the telescopic rotating table and chair device based on any one of claims 1 to 9, characterized in that: Includes the following steps: Unfold the base support structure to stably support it on the ground; The height of the device can be adjusted by pressing the button on the telescopic column assembly (1); The lever is operated to drive the slider to move along the slide rail, so that the support rod is engaged in the target position groove to set the angle of the adjustable angle table (2); The early warning module is activated, and vibration signals are collected through the vibration sensor array. The micro signal processing unit performs signal processing and risk level determination, and the alarm execution unit executes the corresponding graded early warning action based on the determination result.

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