Body fat scale

Abstract

The utility model belongs to the technical field of health management instruments, and relates to a body fat scale which comprises a handle and a scale body, a handle electrode and a trigger piece are arranged in the handle, and a foot electrode, a gravity sensor, an induction unit and an MCU master control module are arranged in the scale body. The gravity sensor is electrically connected with the MCU master control module so as to obtain weight measurement data of a user. The triggering piece and the sensing unit sense in the air to trigger the sensing unit to be electrically connected with the MCU main control module, so that the handle electrode and the foot electrode are electrically connected with the MCU main control module to obtain body fat measurement data of a user. As long as a user does not pull up the handle, the MCU master control module only arranges a body weight measurement item and does not start a body fat measurement item, so that the safety of preventing pregnant women or people with cardiac pacemakers and other uncomfortable people from standing on the scale to measure the body weight is improved; the influence on pregnant women, persons with cardiac pacemakers and the like caused by starting of biological impedance test weak current is effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of health management equipment, and in particular relates to a body fat scale. Background Art

[0002] A body fat scale is an electronic scale used to measure body fat content. The scale measures body fat data by applying an AC signal with a safe voltage to the human body through eight electrodes (four electrodes on the hands and four electrodes on the feet). This performs a bioimpedance test, and then calculates body fat content and other body parameters based on the test data. Currently, the most common testing method for body fat scales is: when a person steps on the scale, they first measure their weight. After the weight is measured, a low-voltage AC signal is immediately applied to the eight electrodes for a bioimpedance test. Although this impedance test uses a low-voltage (voltage signal less than 3.3V) AC signal, it may pose a safety hazard to pregnant women and those with physical discomfort, such as pacemakers. Therefore, these two groups of people are not suitable for using a body fat scale to measure body fat and other parameters. Summary of the Invention

[0003] The purpose of the utility model is to provide a body fat scale, aiming to solve the problem of potential safety hazards when people with physical discomfort use the body fat scale to measure body fat.

[0004] To achieve the above objectives, the present invention provides a body fat scale comprising a handle and a scale body. The handle is provided with handle electrodes and a trigger element, and the scale body is provided with foot electrodes, a gravity sensor, a sensing unit, and an MCU main control module. The gravity sensor is electrically connected to the MCU main control module to obtain user weight measurement data. The trigger element and the sensing unit are electrically connected to the MCU main control module through air induction, thereby triggering the electrical connection between the sensing unit and the MCU main control module, thereby electrically connecting the handle electrodes and foot electrodes to the MCU main control module to obtain user body fat measurement data.

[0005] Furthermore, the triggering member adopts a magnet and the sensing unit adopts a Hall switch. There is an adaptation distance between the two. When the distance between the triggering member and the sensing unit is lower than the minimum value of the adaptation distance, the sensing unit is not triggered; when the distance between the triggering member and the sensing unit exceeds the maximum value of the adaptation distance, the sensing unit is triggered.

[0006] 进一步,适配距离范围值在10~20mm。

[0007] Furthermore, the handle electrodes are divided into a first handle electrode sheet, a second handle electrode sheet, a third handle electrode sheet and a fourth handle electrode sheet, which are arranged in groups of two. The first handle electrode sheet and the second handle electrode sheet are respectively located at the upper and lower ends of the left part of the handle; the third handle electrode sheet and the fourth handle electrode sheet are respectively located at the upper and lower ends of the right part of the handle.

[0008] Further, the foot electrodes are divided into a first weighing body electrode sheet, a second weighing body electrode sheet, a third weighing body electrode sheet, and a fourth weighing body electrode sheet, which are sequentially arranged on the weighing body.

[0009] Further, an LED display module is also provided in the weighing body, and the LED display module is located on the opposite side of the MCU main control module.

[0010] Further, four groups of support feet are provided at the lower end of the weighing body. The support feet are evenly distributed at the corner ends of the weighing body, and the gravity sensor is located inside the support feet.

[0011] Further, a wire reel is also provided in the weighing body. The wire reel is used for winding the cable. One end of the cable passes through the wire reel and is connected to the MCU main control module, and the other end passes through the weighing body and is connected to the handle.

[0012] Further, a connecting guide groove is also provided in the weighing body. One end of the cable is connected to the MCU main control module, and the other end passes through the wire reel in sequence and penetrates through the connecting guide groove and is connected to the handle.

[0013] One or more of the above technical solutions in the body fat scale provided by the embodiments of the present invention at least have the following technical effects:

[0014] In this design: 1. If the user chooses to measure only the body weight and does not lift the handle, the handle is in a fitting state with the weighing body. The sensing unit in the weighing body senses the trigger of the handle, thereby restricting the MCU main control module from activating the handle electrode and the foot electrode. At this time, the user steps on the weighing body, and the gravity sensor collects data, and the weighing body performs body weight detection and does not allow body fat detection. 2. If the user chooses to measure body fat, first hold the handle, overcome the pulling force of the wire reel, separate the handle from the weighing body. The sensing unit in the weighing body senses that the trigger of the handle is far away, thereby lifting the restriction, so that the MCU main control module sends a low-voltage alternating current signal to the handle electrode and the foot electrode for bioelectrical impedance testing to complete the user's body fat detection. As long as the user does not lift the handle, the MCU main control module only arranges the body weight measurement item and does not start the body fat measurement item. This increases the safety of preventing pregnant women or people with physical discomfort such as those with a heart pacemaker from standing on the scale for body weight measurement, and effectively prevents the influence of the weak current of the bioelectrical impedance test on pregnant women and people with a heart pacemaker. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 Structural diagram of the body fat scale provided by the embodiment of the present utility model.

[0017] Figure 2 Usage state diagram of the body fat scale provided by the embodiment of the present utility model.

[0018] Figure 3 Disassembly diagram of the body fat scale provided by the embodiment of the present utility model.

[0019] Figure 4 Disassembly diagram of the handle of the body fat scale provided by the embodiment of the present utility model.

[0020] Figure 5 Partial view of the body fat scale provided by the embodiment of the present utility model.

[0021] Figure 6 Flowchart of the MCU main control module of the body fat scale provided by the embodiment of the present utility model.

[0022] Main reference numeral description: 100, handle; 110, handle electrode; 111, first handle electrode piece; 112, second handle electrode piece; 113, third handle electrode piece; 114, fourth handle electrode piece; 120, trigger member;

[0023] 200, scale body; 210, foot electrode; 211, first scale body electrode piece; 212, second scale body electrode piece; 213, third scale body electrode piece; 214, fourth scale body electrode piece; 220, wire reel; 230, induction unit; 240, MCU main control module; 250, gravity sensor;

[0024] 300, LED display module; 310, support foot seat; 320, connection guide groove; 330, cable. Detailed implementation manners

[0025] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the accompanying Figures 1 to 6 drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The following embodiments described with reference to the accompanying Figures 1 to 6 drawings are exemplary and are intended to explain the embodiments of the present utility model and should not be construed as a limitation of the present utility model.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0028] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0029] In an embodiment of the present invention, this case provides a body fat scale, including a handle 100 and a scale body 200. The handle 100 is provided with a handle electrode 110 and a trigger member 120, and the scale body 200 is provided with a foot electrode 210, a gravity sensor 240, a sensing unit 230, and an MCU main control module 240. The gravity sensor 250 is electrically connected to the MCU main control module 240 to obtain the user's weight measurement data. The trigger member 120 and the sensing unit 230 are inductively connected in the air to trigger the electrical connection between the sensing unit 230 and the MCU main control module 240, so that the handle electrode 110 and the MCU main control module 240 are electrically connected to obtain the user's body fat measurement data.

[0030] Specifically, 1. If the user chooses to measure only weight, without lifting the handle, the handle 100 and the scale body 200 are in contact. The sensing unit 230 in the scale body 200 senses the trigger of the handle 100, thereby restricting the MCU main control module 240 from activating the handle electrode 110 and the foot electrode 210. At this time, the user's foot is on the scale body 200, the gravity sensor 250 collects data, and the scale body 200 performs weight detection without allowing body fat detection. 2. If the user chooses to measure body fat, first hold the handle 100, overcome the tension of the take-up reel 220, and separate the handle 100 from the scale body 200. The sensing unit 230 in the scale body 200 senses the handle 100 trigger 120 moving away, thereby releasing the restriction, causing the MCU main control module 240 to send a low-voltage AC signal to the handle electrode 110 and the foot electrode 210, performing a bioimpedance test, and completing the user's body fat test. As long as the user does not pull up the handle 100, the MCU main control module 240 will only arrange the weight measurement item and will not start the body fat measurement item. This increases the safety of preventing pregnant women or people with pacemakers and other physical discomfort from standing on the scale to measure their weight, and effectively prevents the impact of the weak current of the bio-impedance test on pregnant women and people with pacemakers.

[0031] In another embodiment of the utility model, the trigger member 120 is a magnet, and the sensing unit 230 is a Hall switch. There is an adaptive distance between the trigger member 120 and the sensing unit 230. When the distance between the trigger member 120 and the sensing unit 230 is below a minimum adaptive distance, the sensing unit 230 is not triggered. When the distance between the trigger member 120 and the sensing unit 230 exceeds a maximum adaptive distance, the sensing unit 230 is triggered. The adaptive distance range is 10 to 20 mm. Specifically, the Hall switch is a separate sensor connected to the MCU main control module 240, using a combination of a magnet and a Hall switch. By installing a magnet on the handle 100 and designing a Hall switch inside the scale body 200, if the user does not pull up the handle 100, the distance between the magnet and the Hall switch inside the body fat scale is less than the minimum value of 10mm. The Hall switch detects the attached magnetic field signal and will cause the MCU main control module 240 to only arrange the weight measurement item and not start the body fat measurement item. When the handle 100 is lifted and the distance between the magnet and the Hall switch inside the body fat scale exceeds the maximum value of 20mm, the IO port of the MCU main control module 240 allows a low-voltage AC signal to be sent to the handle electrode 110 and the foot electrode 210 for body fat and heart rate measurement. Otherwise, the MCU only allows weight weighing, and the IO port does not send a test signal, and body fat and heart rate measurements will not be performed. This increases the safety of preventing pregnant women or people with pacemakers and other physical discomfort from standing on the scale to measure their weight, and effectively prevents the impact of the weak current of the bioimpedance test on pregnant women and people with pacemakers.

[0032] In another embodiment of the utility model, the handle electrode 110 is divided into a first handle electrode piece 111, a second handle electrode piece 112, a third handle electrode piece 113, and a fourth handle electrode piece 114. The four are set in pairs. The first handle electrode piece 111 and the second handle electrode piece 112 are respectively located at the upper and lower ends of the left part of the handle 100, and the third handle electrode piece 113 and the fourth handle electrode piece 114 are respectively located at the upper and lower ends of the right part of the handle 100. When the user holds the handle 100 with both hands, ensure that the fingers or palms of each hand cover at least two electrode pieces on the same side, that is, the left hand covers the first handle electrode piece 111 and the second handle electrode piece 112, and the right hand covers the third handle electrode piece 113 and the fourth handle electrode piece 114. Combining the multi-point tests of the foot electrode 210 and the handle electrode 110 can more comprehensively evaluate the bio-impedance characteristics of the human body, and thus more accurately reflect the body fat condition and health level of the user.

[0033] In another embodiment of the utility model, the foot electrode 210 is divided into a first scale body electrode piece 211, a second scale body electrode piece 212, a third scale body electrode piece 213, and a fourth scale body electrode piece 214. The four are arranged in sequence on the scale body 200. When detecting body fat, the user steps on the scale body 200 with both feet. The left foot covers the first scale body electrode piece 211 and the second scale body electrode piece 212, and the right foot covers the third scale body electrode piece 213 and the fourth scale body electrode piece 214. Combining the multi-point tests of the foot electrode 210 and the handle electrode 110 can more comprehensively evaluate the bio-impedance characteristics of the human body, and thus more accurately reflect the body fat condition and health level of the user.

[0034] In another embodiment of the utility model, an LED display module 300 is further provided inside the scale body 200. The LED display module 300 is located on the back opposite side of the MCU main control module 240. The LED display module 300 is cleverly installed inside the scale body 200 and is located on the back opposite side of the MCU main control module 240. This layout not only avoids direct interference between the display module and the main control module, but also optimizes the use of internal space, making the appearance of the scale body 200 more concise and smooth.

[0035] In another embodiment of the utility model, four groups of support foot seats 310 are provided at the lower end of the scale body 200. The support foot seats 310 are evenly distributed at the corner ends of the scale body 200, and the gravity sensor 250 is located inside the support foot seats 310. This design not only ensures the stability and balance of the scale body 200, but also improves the safety and comfort of the user during use.

[0036] In another embodiment of the utility model, a wire reel 220 is further provided inside the weighing body 200. The wire reel 220 is used for winding the cable 330. One end of the cable 330 passes through the wire reel 220 and is connected to the MCU main control module 240, and the other end passes through the weighing body 200 and is connected to the handle 100. The automatic wire winding design of the wire reel 220 facilitates the user to automatically retract the handle 100 after detecting the body fat item, avoiding the cable 330 being exposed outside, which affects the appearance and occupies space.

[0037] In another embodiment of the utility model, a connecting guide groove 320 is further provided inside the weighing body 200. One end of the cable 330 is connected to the MCU main control module 240, and the other end passes through the wire reel 220 in sequence and penetrates through the connecting guide groove 320 and is connected to the handle 100. Specifically, by guiding the cable 330 to pass through the weighing body 200 along the connecting guide groove 320, it can effectively avoid the cable being squeezed, worn or damaged during movement or use, effectively protecting the cable 330 and extending the service life of the cable 330.

[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A body fat scale, characterized in that, It includes a handle and a scale body, wherein the handle is provided with a handle electrode and a trigger component, and the scale body is provided with a foot electrode, a gravity sensor, a sensing unit and an MCU main control module; the gravity sensor is electrically connected to the MCU main control module to obtain the user's weight measurement data; the trigger component and the sensing unit are inductively sensed in the air to trigger the electrical connection between the sensing unit and the MCU main control module, so that the handle electrodes and the foot electrodes are electrically connected to the MCU main control module to obtain the user's body fat measurement data.

2. The body fat scale according to claim 1, wherein The triggering member adopts a magnet and the sensing unit adopts a Hall switch. There is an adaptation distance between the two. When the distance between the triggering member and the sensing unit is lower than the minimum value of the adaptation distance, the sensing unit is not triggered; when the distance between the triggering member and the sensing unit exceeds the maximum value of the adaptation distance, the sensing unit is triggered.

3. The body fat scale according to claim 2, wherein The adaptation distance range is 10 to 20 mm.

4. The body fat scale according to claim 1, wherein, The handle electrodes are divided into a first handle electrode sheet, a second handle electrode sheet, a third handle electrode sheet and a fourth handle electrode sheet, which are arranged in groups of two. The first handle electrode sheet and the second handle electrode sheet are respectively located at the upper and lower ends of the left part of the handle; the third handle electrode sheet and the fourth handle electrode sheet are respectively located at the upper and lower ends of the right part of the handle.

5. The body fat scale according to claim 4, wherein The foot electrodes are divided into a first scale body electrode piece, a second scale body electrode piece, a third scale body electrode piece and a fourth scale body electrode piece, which are sequentially arranged on the scale body.

6. The body fat scale according to claim 1, wherein The scale body is further provided with an LED display module, which is located opposite to the MCU main control module.

7. The body fat scale according to claim 1, wherein, Four groups of supporting feet are provided at the lower end of the scale body. The supporting feet are evenly distributed at the corner ends of the scale body, and the gravity sensor is located inside the supporting feet.

8. The body fat scale according to claim 1, characterized in that, A cable reel is also provided in the scale body for reeling in the cable. One end of the cable passes through the cable reel and is connected to the MCU main control module, and the other end passes through the scale body and is connected to the handle.

9. The body fat scale according to claim 8, wherein The scale body is further provided with a connecting guide groove, one end of the cable is connected to the MCU main control module, and the other end passes through the take-up reel in sequence, passes through the connecting guide groove, and is connected to the handle.

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