Lower limb balance force monitoring pedal

Abstract

The utility model relates to the technical field of lower limb balance force monitoring, in particular to a lower limb balance force monitoring pedal which comprises a supporting structure and a monitoring structure. The supporting structure comprises an upper plate, a lower plate and supporting legs; an annular connecting frame is arranged between the upper plate and the lower plate; the annular connecting frame is formed by connecting two concentric circular frames with different sizes through a connecting rod; a notch is formed in one side of the circular frame of the outer ring of the annular connecting frame; an inflatable airbag is arranged in the center of the bottom of the lower plate; the monitoring structure comprises a pressure sensor, a PCB mainboard and a data interface. The four peripheral pressure sensors are installed at four corners. The central pressure sensor is located at the bottom center of the upper plate; the device is simple in structure and light in size, the interior of the device is easy to maintain, different levels of daily monitoring can be conducted on the balance force of the lower limbs through the lower plate air bag and the pressure sensor, and decline of the balance force can be conveniently perceived in time.

Description

Technical Field

[0001] The utility model relates to the technical field of lower limb balance force monitoring, in particular to a lower limb balance force monitoring pedal. Background Art

[0002] The balance ability reflects the coordinated and comprehensive ability of the human body to various stimuli such as the vestibular organ, muscles, tendons, proprioceptors in joints, and vision. As people age, the musculoskeletal function gradually declines, and the ability to maintain balance decreases day by day, and the ability to take care of daily life will gradually be lost. Since the decline of balance ability is a gradual process, many people may find it too late when they notice, so the daily monitoring of lower limb balance ability is particularly important. Most of the existing balance test equipment is the dynamic balance instrument in the hospital, with a complex overall structure and an overly large equipment volume, which is not suitable for the daily monitoring of ordinary people, and it is not very convenient for machine maintenance and replacement of parts, etc. Content of the Utility Model

[0003] The purpose of this application is to provide a lower limb balance force monitoring pedal, aiming to solve the problems in the prior art.

[0004] An embodiment of this application provides a lower limb balance force monitoring pedal, which includes a support structure and a monitoring structure; the support structure includes an upper plate, a lower plate and support feet; an annular connecting frame is provided between the upper plate and the lower plate; the annular connecting frame is formed by connecting two concentric circular frames with different sizes through connecting rods; a notch is provided on one side of the outer ring circular frame of the annular connecting frame; the annular connecting frame is fixedly connected to the upper surface of the lower plate; support feet are installed at the bottom of the lower plate; an inflatable airbag is provided at the center of the bottom of the lower plate; the monitoring structure includes a pressure sensor, a PCB main board and a data interface; the monitoring structure is arranged on the bottom surface of the upper plate; the pressure sensor is divided into a central pressure sensor and peripheral pressure sensors; there are a total of four peripheral pressure sensors, and their installation positions are distributed at the four corners; the central pressure sensor is located at the center of the bottom surface of the upper plate.

[0005] Further, the data interface is located at the notch of the outer ring circular frame, and the PCB main board is horizontally installed on the right side of the data interface; a power-off switch and a power supply are provided on the side of the data interface.

[0006] Further, the pressure sensor and the data interface are both electrically connected to the PCB main board; the power supply is electrically connected to the PCB main board and the power-off switch.

[0007] Further, convex contacts are provided on the upper surface of the upper plate; an arc-shaped installation groove is provided on the bottom surface of the upper plate.

[0008] Further, elastic bands and fixing buckles are respectively provided on the bottom surface of the lower plate on both sides of the inflatable airbag; an inflation port is provided on the surface of the inflatable airbag.

[0009] The beneficial effects of the present utility model are as follows: The device has a simple structure, is light in volume, and the setting of the installation groove makes the disassembly of the whole device simple and easy for internal maintenance of the device; by the retraction and expansion of the bottom airbag, two different balance force monitoring structures are set. When the airbag is tightened and the whole device is placed on a flat ground, the user makes corresponding postures on the board surface, and data is measured through the pressure sensor at the bottom of the upper board. The data is connected to an external device through the data interface for recording and analysis to complete the detailed monitoring of the lower limb balance force; when the airbag is inflated, a simple monitoring of the lower limb balance force is carried out by recording the standing time of the user on the pedal. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the overall structure diagram of the present utility model.

[0011] Figure 2 It is the schematic diagram of the split structure of the present utility model.

[0012] Figure 3 It is the schematic diagram of the structure of the annular connecting frame.

[0013] Figure 4 It is the schematic diagram of the bottom structure of the upper board.

[0014] Figure 5 It is the schematic diagram of the bottom structure of the lower board.

[0015] In the figure:

[0016] 1. Upper board; 10. Arc-shaped installation groove; 11. Protruding contact; 2. Lower board; 20. Inflatable airbag; 21. Inflation port; 22. Elastic band; 23. Fixed buckle; 3. Support feet; 4. Annular connecting frame; 40. Notch; 41. Connecting rod; 42. Inner ring circular frame; 43. Outer ring circular frame; 5. Peripheral pressure sensor; 6. PCB main board; 7. Data interface; 8. Central pressure sensor; 9. Power supply; 15. Power-off switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Such as Figures 1 to 5A lower limb balance force monitoring pedal shown in the figure includes a supporting structure and a monitoring structure; the supporting structure includes an upper plate 1, a lower plate 2 and a supporting foot 3; an annular connecting frame 4 is arranged between the upper plate 1 and the lower plate 2; the annular connecting frame 4 is formed by two concentric circular frames of different sizes connected by a connecting rod 41; a notch 40 is arranged on one side of the outer ring circular frame 43 of the annular connecting frame 4; the annular connecting frame 4 is fixedly connected to the upper surface of the lower plate 2; a supporting foot 3 is installed at the bottom of the lower plate 2; an inflatable airbag 20 is arranged at the bottom center of the lower plate 2; the monitoring structure includes a pressure sensor, a PCB main board 6 and a data interface 7; the interface is a type-c interface, and the monitoring structures are all arranged on the bottom surface of the upper plate 1; the pressure sensor is divided into a central pressure sensor 8 and a peripheral pressure sensor 5; there are four peripheral pressure sensors 5, and their installation positions are distributed in four corners; the central pressure sensor 8 is located at the center of the bottom surface of the upper plate 1, corresponding to the position of the inner ring circular frame 43; since different actions need to be made on the pedal during the balance force test, and the positions of the feet standing are also different, setting pressure sensors at different positions can minimize test errors.

[0019] The data interface 7 is located at the notch 40 of the outer ring frame 43, and the PCB main board 6 is horizontally installed on the right side of the data interface 7; a power-off switch 15 and a power supply 9 are provided on the side of the data interface 7.

[0020] The pressure sensor and the data interface 7 are both electrically connected to the PCB main board 6; the power supply 9 is electrically connected to the PCB main board 6 and the power-off switch 15; a single-chip microcomputer, a PC terminal, a pressure acquisition module, a signal processing module, a storage unit, a data processing circuit and a communication unit are installed on the PCB main board 6 for connecting with external devices to facilitate data transmission; the plantar pressure electrical signal emitted by the pressure sensor can be collected and received by the signal processing module and the pressure acquisition module, and conditioned into a digital signal for characterizing the pressure collected by the pressure sensor, and then the digital signal is packaged and managed according to a preset protocol through the data processing circuit, and can be stored in the storage unit after packaging, and finally the digital signal is transmitted to the external device through the communication unit.

[0021] The upper surface of the upper plate 1 is provided with a raised contact point 11 ; the bottom surface of the upper plate 1 is provided with an arc-shaped mounting groove 10 for clamping the annular connecting frame 4 .

[0022] The bottom surfaces of the lower plates 2 on both sides of the inflatable airbag 20 are respectively provided with elastic bands 2 and fixing buckles 23 for fixing the airbag in a deflated state; an inflation port 21 is provided on the surface of the inflatable airbag 20. The inflation of the airbag 20 is similar to a balance board. When the user stands on the pedal, he needs to adjust the lower limb strength to maintain balance and stability. When the balance ability is weak, the lower limb strength cannot be well controlled, causing the pedal to shake all the time, resulting in uneven pressure on the pedal, resulting in a large fluctuation in the difference in pressure with the flat ground.

[0023] The monitoring pedal is divided into two working states. In State 1, when the airbag 20 is tightened, the power-off switch 15 is turned on and the entire device is placed on a flat ground. The user makes corresponding postures on the board surface, such as standing with feet together, standing with feet front and back, or standing on one foot, etc. Then, under the combined action of the two pressure sensors at the bottom of the upper board 1 and the PCB main board 6, the measurement data generated by the corresponding postures is collected, processed, and stored. In State 2, when the airbag 20 is fully inflated, the height of the airbag 20 is greater than the height of the support foot 3. At this time, the bottom of the pedal is supported by the arc-shaped airbag 20. The user steps on the pedal and makes the same actions as in State 1 and maintains stable balance, and the standing duration of maintaining balance is recorded. At the same time, the pressure sensors at the bottom and the PCB main board 6 collect, process, and store the generated measurement data. After measuring multiple times, the data of the two states are collected and connected to an external device through the data interface 7, and the data is exported, recorded, and analyzed and compared. By comparing the data of the pressure sensors in the two working states, if the difference between the two is stable and there is no large fluctuation, and at the same time the longer the standing duration during airbag inflation, it indicates better balance ability.

[0024] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A lower limb balance monitoring pedal, characterized in that: It includes a supporting structure and a monitoring structure; the supporting structure includes an upper plate, a lower plate and supporting feet; an annular connecting frame is provided between the upper plate and the lower plate; the annular connecting frame is formed by two concentric circular frames of different sizes connected by a connecting rod; a notch is provided on one side of the outer ring circular frame of the annular connecting frame; the annular connecting frame is fixedly connected to the upper surface of the lower plate; supporting feet are installed at the bottom of the lower plate; an inflatable airbag is provided at the center of the bottom of the lower plate; the monitoring structure includes a pressure sensor, a PCB main board and a data interface; the monitoring structures are all arranged on the bottom surface of the upper plate; the pressure sensor is divided into a central pressure sensor and a peripheral pressure sensor; there are four peripheral pressure sensors in total, and their installation positions are distributed in four corners; the central pressure sensor is located at the center of the bottom surface of the upper plate.

2. The lower limb balance force monitoring pedal according to claim 1, characterized in that: The data interface is located at the notch of the outer ring circular frame, and the PCB mainboard is horizontally installed on the right side of the data interface; a power-off switch and a power supply are arranged on the side of the data interface.

3. The lower limb balance force monitoring pedal according to claim 2, characterized in that: The pressure sensor and the data interface are both electrically connected to the PCB mainboard; the power supply is electrically connected to the PCB mainboard and the power-off switch.

4. The lower limb balance force monitoring pedal according to claim 1, characterized in that: The upper surface of the upper plate is provided with a raised contact point; the bottom surface of the upper plate is provided with an arc-shaped installation groove.

5. The lower limb balance force monitoring pedal according to claim 1, characterized in that: The bottom surfaces of the lower plates on both sides of the inflatable airbag are respectively provided with elastic bands and fixing buckles; and the surface of the inflatable airbag is provided with an inflation port.

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