Novel weight and height detection device

Abstract

A novel weight and height detection device comprises an automatic weight and height detection device body, a photoelectric switch, a detection mechanism and a prompt circuit. Each set of detection mechanism comprises a fixed shell, a movable plate, a pressure resistor, a sealing plate and a contact plate which are mounted together, a photoelectric switch is mounted at the front part of the supporting seat, the fixed shells of the two sets of detection mechanisms are respectively mounted at the front end of the supporting seat and the front part of the measuring rod, and a prompt circuit is mounted in the element box. After a related person stands on the weighing bedplate, the photoelectric switch can automatically control the detection mechanism and the prompt circuit to work together to detect the postures of the back and the rear side of the head of the related person; and when the height measurement data is influenced due to the fact that the rear sides of the head and the back do not effectively contact the front side ends of the two contact plates, the two buzzers can respectively prompt related personnel to adjust the posture data of the head or the back, so that a favorable technical support is provided for realizing accurate height measurement as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of height and weight detection equipment, in particular to a novel weight and height detection device. Background Art

[0002] Automatic weight and height detection equipment is widely used in institutions (such as hospitals, physical examination centers or public places, etc.). In its application, after the relevant personnel stand on the weighing platform of the equipment, the equipment automatically weighs and measures the height of the relevant personnel (when detecting the height, the control system in the equipment controls the measuring rod in the support seat to gradually move downward through the electric push rod. After the measuring rod touches the person's head, the measuring rod no longer moves downward. After the measurement is completed, the electric push rod controls the measuring rod to move upward and prepare for the next person to measure the weight and height). After the detection, the control system controls the display screen to display the weight and height data of the relevant person, or prompts the measured person's weight and height data through voice.

[0003] While existing automatic weight and height measurement equipment has met certain requirements for measuring a person's weight and height, it still faces some technical challenges due to structural limitations. Specifically, current automatic weight and height measurement equipment cannot detect a person's standing posture. This means that if the person standing on the weighing platform is not standing straight, the resulting height measurement data will be inaccurate. Considering these factors, it is crucial to provide a device that can detect a person's standing posture in real time during a height measurement, thereby improving the accuracy of the height measurement data. Utility Model Content

[0004] In order to overcome the disadvantage of existing automatic weight and height detection equipment that, due to structural limitations, cannot detect the standing posture of the relevant person, which will have an adverse effect on the height detection data, the utility model provides a new weight and height detection device based on the automatic weight and height detection device body. In application, after the relevant person stands on the weighing platform, the device can automatically detect the posture of the relevant person's back and the back of the head. When the back and head are not in a vertical state as much as possible, which affects the height measurement data, two buzzers will respectively remind the relevant person to adjust the head or back posture data, thereby providing favorable technical support for achieving accurate height measurement as much as possible.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A new weight and height detection device includes an automatic weight and height detection device body, a photoelectric switch, and is characterized in that it also has a detection mechanism and a prompt circuit; the detection mechanism and the prompt circuit are respectively provided with at least two sets, each detection mechanism includes a fixed shell, a movable plate, a pressure resistor, a sealing plate, and a contact plate, the front of the sealing plate has an axial hole, the rear end of the contact plate is equipped with a shaft, the front side of the movable plate is installed on the rear side of the shaft, the middle part of the shaft is located in the axial hole of the sealing plate, the pressure resistor is installed at the rear end of the fixed shell, and its force-bearing surface is located at the front, the front end of the pressure resistor is equipped with a rubber pad, and the outer side of the sealing plate is installed on the fixed shell. The front end of the fixed shell is outside, and the movable plate is located in the fixed shell; the photoelectric switch is installed in the front part of the support base of the automatic weight and height detection equipment body, and the detection head of the photoelectric switch faces the front end; the fixed shells of the two sets of detection mechanisms are respectively installed at the front end of the support base and the front part of the measuring rod of the automatic weight and height detection equipment body, and the contact plates of the two sets of detection mechanisms are located at the front side end; the prompt circuit is installed in the component box, the power output end of the photoelectric switch and the signal input end of the two sets of detection mechanisms are respectively electrically connected, and the signal output ends of the two sets of detection mechanisms are respectively electrically connected to the signal input ends of the two sets of prompt circuits.

[0007] Furthermore, the contact plates of the two sets of detection mechanisms are located in a vertical plane from top to bottom.

[0008] Furthermore, the outer diameter of the movable plate is smaller than the inner diameter of the fixed shell.

[0009] Furthermore, the rear end of the movable plate contacts the rubber pad on the front side of the pressure resistor.

[0010] Furthermore, each set of prompt circuits includes an electrically connected resistor, a transistor, and a buzzer, one end of the first resistor is connected to one end of the second resistor, the collector of the transistor is connected to the negative power input end of the buzzer, and the base of the transistor is connected to the other end of the second resistor.

[0011] Compared with the existing technology, the beneficial effects of the present invention are: the present invention is based on the automatic weight and height detection equipment body. In application, after the relevant person stands on the weighing platform, the photoelectric switch can automatically control the detection mechanism and the prompt circuit to work together to detect the posture of the back and the back of the head of the relevant person. When the back and the head are not in a vertical state as much as possible, that is, the head and the back of the back do not effectively contact the front ends of the two contact plates, affecting the height measurement data, the two buzzers will respectively prompt the relevant person to adjust the head or back posture data, which provides favorable technical support for achieving accurate height measurement as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a partial structural diagram of the utility model.

[0015] Figure 3 It is a circuit diagram of the present utility model. DETAILED DESCRIPTION

[0016] Figure 1 、 2 As shown in , 3, a new weight and height detection device includes an automatic weight and height detection device body 1, a power module Y1, a photoelectric switch Y2, and a detection mechanism 2 and a prompt circuit 3; the detection mechanism 2 and the prompt circuit 3 are respectively provided with two sets, and each set of the detection mechanism 2 includes a fixed shell 21, a movable plate 22, a pressure resistor T, a sealing plate 23, and a contact plate 24. The front middle portion of the sealing plate 23 has an opening, and a shaft 25 is longitudinally welded to the middle portion of the rear end of the contact plate 24. The front middle portion of the movable plate 22 is welded to the rear end of the shaft 25, and the middle portion of the shaft 25 is located in the opening of the sealing plate 23 (the inner diameter of the opening is larger than the outer diameter of the shaft 25). A circuit board is bonded to the middle portion of the rear end of the fixed shell 21, and the pressure resistor T is welded to the front end of the circuit board, and its force-bearing surface is located at the front. The front side of the pressure resistor T A protective rubber pad 26 is glued to the end (which protects the stress-bearing surface of the pressure resistor T), and the outer sides of the sealing plate 23 are bolted to the outer sides of the front end of the fixed shell 21, and the movable plate 22 is located inside the fixed shell 21 (the contact plate is located outside the front end of the fixed shell); the photoelectric switch Y2 is longitudinally bolted to the front of the lower end of the support base 101 of the automatic weight and height detection device body, and the detection head of the photoelectric switch Y2 faces the front end; the rear outer sides of the fixed shell 21 of the two sets of detection mechanisms are respectively bolted to the middle of the front upper end of the support base 101 and the front upper end of the measuring rod 102 of the automatic weight and height detection device body, and the contact plates 24 of the two sets of detection mechanisms are located at the front side end; the power module Y1 and the prompt circuit 3 are installed in the component box of the automatic weight and height detection device body 1.

[0017] Figure 1 、 2As shown in Figures 3 and 4, the contact plates 24 of the two detection mechanisms are arranged in a vertical plane from top to bottom. The outer diameter of the movable plate 22 is 1 mm smaller than the inner diameter of the fixed housing 21. The rear end of the movable plate 22 contacts the protective rubber pad 26 on the front side of the pressure resistor T. Each warning circuit includes resistors R1 and R2, a transistor VT, and a buzzer B connected via circuit board wiring. One end of the first resistor R1 is connected to one end of the second resistor R2. The other end of the second resistor R2 is connected to the base of the transistor VT. The collector of the transistor VT is connected to the negative power input terminal of the buzzer B. The power input terminals 1 and 2 of the power module Y1 are connected to the two poles of the AC 220V power supply via wires respectively. The power output terminals 3 and 4 of the power module Y1 are connected to the power input terminals 1 and 2 of the photoelectric switch Y2, the power input terminals of the two prompt circuits, the positive power input terminals of the buzzer B and the emitter of the transistor VT via wires respectively. The power output terminal 3 of the photoelectric switch Y2 is connected to the other end of the signal input terminal resistor R1 of the two prompt circuits via wires respectively. The two ends of the pressure resistor T of the two detection mechanisms are connected to one end of the first resistor R1 of the two prompt circuits and the emitter of the transistor VT via wires respectively. Figure 3 In the figure, the resistance values ​​of resistors R1 and R2 are 4.7K and 10K respectively; the model of transistor VT is 9013 (NPN type); the power module Y1 is a finished product of a 220V AC to 12V DC power module; the buzzer B is a finished product of an active continuous sound buzzer alarm, model SF12V (the buzzer sounds of the two sets of prompt circuits are inconsistent, or a voice chip is used, so that relevant personnel can specifically understand whether the head or back is not leaning against the contact plate of the corresponding set of detection mechanisms); the photoelectric switch Y2 is a finished product of a photoelectric switch, model E3F-DS30C4, which has two power input terminals and one signal output terminal. When in operation, the signal output terminal outputs power when the front end probe is blocked by an obstacle, and does not output power when there is no obstacle (detection distance 30 cm); the pressure resistor T is a finished product of a resistive pressure sensor, model FSR402.

[0018] Figure 1 、 2As shown in Figures 3 and 4, this novel device is based on an automatic weight and height detection device body 1. In use, after a person stands on the device's weighing platform 103, the device automatically weighs and measures their height. (During height detection, the device's control system, via an electric push rod, gradually moves downward within the support base. Once the measuring rod 102 contacts the person's head, it no longer moves downward. After the measurement is complete, the electric push rod moves the measuring rod 102 upward, preparing for the next person's weight and height measurement.) After detection, the control system controls the display to display the person's weight and height data, or provides a voice prompt to the person being measured. The aforementioned automatic weight and height detection device body 1 is a mature technology. This application does not elaborate on the operating principle of the automatic weight and height detection device body 1, nor does it provide any protection for the automatic weight and height detection device body 1. After a 220V power supply enters the power input terminal of the power module Y1, pins 3 and 4 of the power module Y1 output a stable DC 12V power supply that enters the power input terminal of two prompt circuits and the photoelectric switch Y1. When no one stands on the weighing platform 103, there is no power output at pin 3 of the photoelectric switch Y2 because there is no shield in front of the detection head. The transistors VT of the two prompt circuits will not be turned on and the corresponding buzzer B will not be powered and sound. When a person stands on the weighing platform 103, the detection head of the photoelectric switch Y2 is blocked, and its 3rd pin outputs a high level and enters the other end of the resistor R1 of the two detection mechanisms. When the relevant person does not stand upright and his head or back does not touch the contact plate 24 of the two detection mechanisms, the pressure resistor T of the two detection mechanisms has no pressure, its resistance value is relatively high, and the voltage divided by the resistor R1 is relatively large. The power output from the 3rd pin of the photoelectric switch Y2 is divided by the pressure resistor T and the resistor R1, and the resistor R2 reduces the voltage and limits the current to enter the base of the transistor VT, which is higher than 0.7V. The transistor VT is turned on, and the collector outputs a low level and enters the negative power input terminal of the buzzer B. As a result, the buzzer B of the two detection mechanisms is energized and sounds, reminding the relevant person that his head and back are not leaning against the front end of the contact plate 24 of the two detection mechanisms.When the relevant personnel stand on the weighing platform 103, stand up straight and touch the front end of the contact plates 24 of the two sets of detection mechanisms with their heads and backs synchronously (slightly force backwards), the contact plates 24 of the two sets of detection mechanisms push the movable plate 22 to move to the rear side end via the shaft 25. The movable plate 22 is compressed on the force surface of the pressure resistor T, and the force acting on it is relatively large. The resistance value of the pressure resistor T is relatively small, and the voltage divided between it and the resistor R is relatively small. The power output from the 3rd pin of the photoelectric switch Y2 is divided by the pressure resistor T and the resistor R1, and the voltage is reduced and limited by the resistor R2 to enter the base of the transistor VT below 0.7V. The transistor VT is cut off, and the collector no longer outputs a low level and enters the negative power input terminal of the buzzer B. Therefore, the two sets of detection mechanisms are When buzzer B of the detection mechanism loses power and stops sounding, it indicates that the person's head and back are effectively resting against the front ends of the contact plates 24 of the two detection mechanisms. This makes subsequent height measurement data more reliable. (Specifically, if one of the buzzers continues to sound, it means that the person's head or back is not resting against the contact plates of the upper or lower detection mechanism. The person can then immediately place their head or back against the contact plates of the upper or lower detection mechanism and slightly push backward, making the measured height data more accurate. When the head and back are upright and in contact with the contact plates of the two detection mechanisms, neither the person's back nor the head will bend forward, so the measured height data is relatively more accurate.) This novel technology provides advantageous technical support for achieving the most accurate height measurement possible.

[0019] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

[0020] In addition, it should be understood that although this specification is described in terms of implementation methods, the implementation methods do not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A new weight and height detection device, comprising an automatic weight and height detection device body and a photoelectric switch, characterized in that: It also has a detection mechanism and a prompt circuit; the detection mechanism and prompt circuit each have at least two sets, each set of detection mechanism includes a fixed shell, a movable plate, a pressure resistor, a sealing plate, and a contact plate. The front of the sealing plate has an axial hole, and the rear end of the contact plate is installed with a shaft rod. The front side of the movable plate is installed on the rear side of the shaft rod, and the middle part of the shaft rod is located in the axial hole of the sealing plate. The pressure resistor is installed at the rear end of the fixed shell, and its force-bearing surface is located at the front. A rubber pad is installed at the front end of the pressure resistor, and the outer side of the sealing plate is installed on the outer side of the front end of the fixed shell, and the movable plate is located in the fixed shell; the photoelectric switch is installed in the front part of the support seat of the automatic weight and height detection equipment body, and the detection head of the photoelectric switch faces the front end; the fixed shells of the two sets of detection mechanisms are respectively installed at the front end of the support seat and the front part of the measuring rod of the automatic weight and height detection equipment body, and the contact plates of the two sets of detection mechanisms are located at the front end; the prompt circuit is installed in the component box, the power output end of the photoelectric switch and the signal input end of the two sets of detection mechanisms are respectively electrically connected, and the signal output ends of the two sets of detection mechanisms are respectively electrically connected to the signal input ends of the two sets of prompt circuits.

2. The novel weight and height detection device according to claim 1, characterized in that: The contact plates of the two sets of detection mechanisms are located in a vertical plane from top to bottom.

3. The novel weight and height detection device according to claim 1, characterized in that: The outer diameter of the movable plate is smaller than the inner diameter of the fixed shell.

4. The novel weight and height detection device according to claim 1, characterized in that: The rear end of the movable plate contacts the rubber pad on the front side of the pressure resistor.

5. The novel weight and height detection device according to claim 1, characterized in that: Each prompt circuit includes an electrically connected resistor, a transistor, and a buzzer. One end of the first resistor is connected to one end of the second resistor, the transistor collector is connected to the negative power input end of the buzzer, and the transistor base is connected to the other end of the second resistor.

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