A device for calibrating an ultrasonic height and weight measuring instrument

Abstract

The application provides a device for calibrating an ultrasonic height and weight measuring instrument, and belongs to the technical field of measurement, which comprises an outer frame, an inner frame, a weight table, an inner frame driving assembly, a weight table driving assembly and a weight adjusting assembly; the weight table comprises a top plate, support pipes and a bottom plate; the top plate and the bottom plate are connected through the four support pipes; the weight table is driven by the weight table driving assembly to move up and down along the inner frame; the inner frame and the weight table are driven by the inner frame driving assembly to move up and down along the outer frame; the weight adjusting assembly comprises an automatic weight adjusting assembly and a manual weight adjusting assembly; when the device is used, the whole calibration process is automatic operation except that the weight III needs to be manually taken and placed and the whole device needs to be carried, so that the labor intensity of the staff is effectively reduced; the outer frame, the inner frame and the weight table store the weight I, the weight II and the weight III in addition to serving as the reference object for calibrating the height, and the weights and the reference object are not easy to be lost in the storage and transportation process.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of measurement, and specifically discloses a device for calibrating an ultrasonic height and weight measuring instrument. BACKGROUND

[0002] The ultrasonic height and weight measuring instrument can automatically measure height, weight and BMI index, and is very convenient and fast, accurate and harmless to the human body, and is suitable for a wide range of people. For example, a height and weight detection device is disclosed in Chinese Patent No. CN221445261U, which comprises a weight detector base, a weighing plate, a connecting frame, an ultrasonic height detector and a display screen. The detection end of the upper end face of the weight detector base is connected with the weighing plate. The connecting frame is arranged on the outer peripheral wall of the weight detector base, and the ultrasonic height detector is arranged on the upper end face of the connecting frame and above the weighing plate. The detection end of the ultrasonic height detector faces downward, and the display screen is arranged on the outer peripheral wall of the connecting frame and faces one side of the weight detector base.

[0003] When calibrating the weight, the ultrasonic height and weight measuring instrument needs to manually load / unload different weights on the weighing plate multiple times, and then read the weight value displayed on the display screen to determine whether the ultrasonic height and weight measuring instrument is accurate according to whether the weight value is consistent with the weight. When calibrating the height, the ultrasonic height and weight measuring instrument needs to manually load / unload different reference objects on the weighing plate multiple times, and then read the height value displayed on the display screen to determine whether the ultrasonic height and weight measuring instrument is accurate according to whether the height value is consistent with the reference object. The whole process needs to load / unload the weights and reference objects multiple times, which is labor-intensive for the staff, and the multiple weights and reference objects are easy to be lost during storage and transportation. SUMMARY

[0004] The application provides a device for calibrating an ultrasonic height and weight measuring instrument, which at least solves one of the following technical problems:

[0005] 1. The existing ultrasonic height and weight measuring instrument calibration method needs to load / unload weights and reference objects multiple times, which is labor-intensive for the staff.

[0006] 2. The multiple weights and reference objects are easy to be lost during storage and transportation.

[0007] The device for calibrating the ultrasonic height and weight measuring instrument comprises an outer frame, an inner frame, a weight table, an inner frame driving assembly, a weight table driving assembly and a weight adjusting assembly; the weight table comprises a top plate, support pipes and a bottom plate; the top plate and the bottom plate are connected by the four support pipes; the four support pipes are arranged in a square shape, and are two support pipes I and two support pipes II respectively; the two support pipes I are located on a diagonal line I of the square, and the two support pipes II are located on a diagonal line II of the square; two through holes I are arranged on the bottom plate and below the support pipes I; the outer frame, the inner frame and the weight table have the same height; the weight table is sleeved in the inner frame and connected with the inner frame through the weight table driving assembly; the weight table is driven by the weight table driving assembly to move up and down along the inner frame; the inner frame is sleeved in the outer frame and connected with the outer frame through the inner frame driving assembly; the inner frame and the weight table are driven by the inner frame driving assembly to move up and down along the outer frame; the weight adjusting assembly comprises an automatic weight adjusting assembly and a manual weight adjusting assembly; the automatic weight adjusting assembly is provided with two groups and corresponds to the support pipes I; each group of the automatic weight adjusting assembly comprises a pad plate I, a driving telescopic rod III, a magnetic frame, an electromagnet I, a weight I, a weight II, a limiting ring, an electromagnet II and a power supply; the driving telescopic rod III is provided with a driving source, fixedly connected with the pad plate I at the bottom end and fixedly connected with the magnetic frame at the top end; the top end of the magnetic frame is fixedly connected with the electromagnet I; the limiting ring is fixed in the support pipe I; the bottom end of the weight I is provided with a magnetic layer, slidably passes through the limiting ring and is located above the electromagnet I; the weight II is located in the support pipe I and fixedly connected with the top end of the weight I; the outer diameter of the weight II is larger than the inner diameter of the limiting ring; the electromagnet II is fixed in the through hole I and provided with an adsorption hole II matched with the magnetic frame; the electromagnet I and the electromagnet II are powered by the power supply; the manual weight adjusting assembly comprises a weight III placed in the weight table.

[0008] In the device for calibrating the ultrasonic height and weight measuring instrument, one half of the support pipe is provided with a mark; the electromagnet I is provided with an adsorption hole I matched with the weight I.

[0009] In the device for calibrating the ultrasonic height and weight measuring instrument, the automatic weight adjusting assembly further comprises a support seat I and reinforcing rods; the support seat I is sleeved outside the driving telescopic rod III and fixedly connected with the pad plate I at the bottom end; a plurality of reinforcing rods are arranged around the support seat I and connected with the pad plate I and the support seat I at two ends respectively.

[0010] In the device for calibrating the ultrasonic height and weight measuring instrument, the power supply comprises a storage battery I and a storage battery II; the automatic weight adjusting assembly further comprises a socket, a sealing plate and a plug; the top end of the magnetic frame is provided with a mounting hole I and the bottom end is provided with a mounting hole II; the storage battery I is mounted in the magnetic frame and powers the electromagnet I; the socket is mounted on the storage battery I and corresponds to the mounting hole I; the sealing plate is mounted on the mounting hole II and fixedly connected with the top end of the driving telescopic rod III; the plug is mounted in the through hole I and used for connecting with the socket; the storage battery II is mounted outside the outer frame and connected with the electromagnet II and the plug respectively.

[0011] The device for calibrating the ultrasonic height and weight measuring instrument, two opposite reserved slots are formed on the inner frame; two support plates I corresponding to the reserved slots are arranged in the outer frame, the support plate I is slidingly fitted in the corresponding reserved slot to form an extension rod installation area with the reserved slot; the inner frame driving assembly includes a driving extension rod I and a driven extension rod I, the driving extension rod I is provided with a driving source, and the driven extension rod I is not provided with a driving source; the driving extension rod I and the driven extension rod I are respectively installed in the two extension rod installation areas, the bottom ends are respectively connected with the corresponding support plates I, and the top ends are respectively connected with the corresponding reserved slots.

[0012] The device for calibrating the ultrasonic height and weight measuring instrument, two opposite reserved slots are formed on the inner frame; two support plates I corresponding to the reserved slots are arranged in the outer frame, the support plate I is slidingly fitted in the corresponding reserved slot to form an extension rod installation area with the reserved slot; the inner frame driving assembly includes a driving extension rod I and a driven extension rod I, the driving extension rod I is provided with a driving source, and the driven extension rod I is not provided with a driving source; the driving extension rod I and the driven extension rod I are respectively installed in the two extension rod installation areas, the bottom ends are respectively connected with the corresponding support plates I, and the top ends are respectively connected with the corresponding reserved slots.

[0013] The device for calibrating the ultrasonic height and weight measuring instrument, two opposite reserved slots are formed on the inner frame; two support plates I corresponding to the reserved slots are arranged in the outer frame, the support plate I is slidingly fitted in the corresponding reserved slot to form an extension rod installation area with the reserved slot; the inner frame driving assembly includes a driving extension rod I and a driven extension rod I, the driving extension rod I is provided with a driving source, and the driven extension rod I is not provided with a driving source; the driving extension rod I and the driven extension rod I are respectively installed in the two extension rod installation areas, the bottom ends are respectively connected with the corresponding support plates I, and the top ends are respectively connected with the corresponding reserved slots.

[0014] The device for calibrating the ultrasonic height and weight measuring instrument, two opposite reserved slots are formed on the inner frame; two support plates I corresponding to the reserved slots are arranged in the outer frame, the support plate I is slidingly fitted in the corresponding reserved slot to form an extension rod installation area with the reserved slot; the inner frame driving assembly includes a driving extension rod I and a driven extension rod I, the driving extension rod I is provided with a driving source, and the driven extension rod I is not provided with a driving source; the driving extension rod I and the driven extension rod I are respectively installed in the two extension rod installation areas, the bottom ends are respectively connected with the corresponding support plates I, and the top ends are respectively connected with the corresponding reserved slots.

[0015] The device for calibrating the ultrasonic height and weight measuring instrument, two opposite reserved slots are formed on the inner frame; two support plates I corresponding to the reserved slots are arranged in the outer frame, the support plate I is slidingly fitted in the corresponding reserved slot to form an extension rod installation area with the reserved slot; the inner frame driving assembly includes a driving extension rod I and a driven extension rod I, the driving extension rod I is provided with a driving source, and the driven extension rod I is not provided with a driving source; the driving extension rod I and the driven extension rod I are respectively installed in the two extension rod installation areas, the bottom ends are respectively connected with the corresponding support plates I, and the top ends are respectively connected with the corresponding reserved slots.

[0016] The device for calibrating the ultrasonic height and weight measuring instrument, two opposite reserved slots are formed on the inner frame; two support plates I corresponding to the reserved slots are arranged in the outer frame, the support plate I is slidingly fitted in the corresponding reserved slot to form an extension rod installation area with the reserved slot; the inner frame driving assembly includes a driving extension rod I and a driven extension rod I, the driving extension rod I is provided with a driving source, and the driven extension rod I is not provided with a driving source; the driving extension rod I and the driven extension rod I are respectively installed in the two extension rod installation areas, the bottom ends are respectively connected with the corresponding support plates I, and the top ends are respectively connected with the corresponding reserved slots.

[0017] Compared with the prior art, the device has the following beneficial effects.

[0018] When using the above device, the entire calibration process is automated except for the manual placement and removal of weight III and the transportation of the entire device, which effectively reduces the labor intensity of the staff; in addition to serving as reference objects for calibrating height, the outer frame, inner frame, and weight platform also store weights I, weight II, and weight III. The weights and reference objects are not easily lost during storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the structure of a device for calibrating an ultrasonic height and weight measuring instrument;

[0021] Figure 2 for Figure 1 sectional view of

[0022] Figure 3 This is a connection diagram of the outer frame, inner frame, inner frame drive assembly, and weight platform drive assembly (inner frame retracted state);

[0023] Figure 4 This is a connection diagram of the outer frame, inner frame, inner frame drive assembly, and weight platform drive assembly (inner frame in upward movement);

[0024] Figure 5 This is a connection diagram of the inner frame and the weight platform;

[0025] Figure 6 This is a schematic diagram of the installation of the weight platform drive component and the automatic weight adjustment component;

[0026] Figure 7 for Figure 6 sectional view of

[0027] Figure 8 for Figure 7 Enlarged view of part A;

[0028] Figure 9 This is a disassembled diagram of the automatic weight adjustment component;

[0029] Figure 10 This is a disassembled diagram of the magnetic rack, battery I, socket, and sealing plate;

[0030] Figure 11 Schematic diagram of the connection between active telescopic rod II and support plate II;

[0031] Figure 12 Schematic view of the balancing assembly;

[0032] Figure 13 Schematic view of the device for calibrating the ultrasonic height and weight measuring instrument placed on the weighing plate.

[0033] Reference numerals in the drawing: 1, outer frame; 101, support plate I;

[0034] 2, inner frame; 201, reserved groove; 202, support plate II;

[0035] 301, top plate; 302, bottom plate; 303, support pipe I; 304, support pipe II; 305, through hole I; 306, through hole II;

[0036] 401, driving telescopic rod I; 402, driven telescopic rod I;

[0037] 501, driving telescopic rod II; 502, driven telescopic rod II;

[0038] 601, pad plate I; 602, support seat I; 603, reinforcing rod; 604, driving telescopic rod III; 605, magnetic rack; 606, electromagnet I; 607, weight I; 608, weight II; 609, limiting ring; 610, electromagnet II; 611, storage battery I; 612, storage battery II; 613, socket; 614, sealing plate; 615, plug;

[0039] 701, balancing frame; 702, partition plate; 703, counterweight; 704, control panel; 705, rubber handle;

[0040] 801, support seat II; 802, pad plate II;

[0041] 901, weight detector base; 902, weighing plate; 903, connecting frame; 904, ultrasonic height detector; 905, display screen. DETAILED DESCRIPTION

[0042] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0043] The present application provides a device for calibrating an ultrasonic height and weight measuring instrument, which calibrates the ultrasonic height and weight measuring instrument. The ultrasonic height and weight measuring instrument comprises a weight detector base 901, a weighing plate 902, a connecting frame 903, an ultrasonic height detector 904, and a display screen 905.

[0044] Embodiment 1

[0045] The embodiment provides a device for calibrating an ultrasonic height and weight measuring instrument, which comprises an outer frame 1, an inner frame 2, a weight table, an inner frame driving assembly, a weight table driving assembly and a weight adjusting assembly.

[0046] The weight table comprises a top plate 301, support pipes and a bottom plate 302; the top plate 301 and the bottom plate 302 are connected by four support pipes; the four support pipes are arranged in a square shape and are two support pipes I 303 and two support pipes II 304 respectively; the two support pipes I 303 are located on diagonal line I of the square, and the two support pipes II 304 are located on diagonal line II of the square; the bottom plate 302 is provided with two through holes I 305, and the through holes I 305 are located below the support pipes I 303.

[0047] The outer frame 1, the inner frame 2 and the weight table have the same height and are set as H; the weight table is sleeved in the inner frame 2 and is connected with the inner frame 2 through the weight table driving assembly; the weight table is driven by the weight table driving assembly to move up and down along the inner frame 2; the inner frame 2 is sleeved in the outer frame 1 and is connected with the outer frame 1 through the inner frame driving assembly; the inner frame 2 and the weight table are driven by the inner frame driving assembly to move up and down along the outer frame 1.

[0048] The weight adjusting assembly comprises an automatic weight adjusting assembly and a manual weight adjusting assembly; the automatic weight adjusting assembly is provided with two groups and corresponds to the support pipes I 303; each group of the automatic weight adjusting assembly comprises a pad plate I 601, a driving telescopic rod III 604, a magnetic frame 605, an electromagnet I 606, a weight I 607, a weight II 608, a limiting ring 609, an electromagnet II 610 and a power supply; the driving telescopic rod III 604 is provided with a driving source, the bottom end is fixedly connected with the pad plate I 601, and the top end is fixedly connected with the magnetic frame 605; the top end of the magnetic frame 605 is fixedly connected with the electromagnet I 606; the limiting ring 609 is fixed in the support pipe I 303; the bottom end of the weight I 607 is provided with a magnetic layer, is slid through the limiting ring 609 and is located above the electromagnet I 606; the weight II 608 is located in the support pipe I 303, is fixedly connected with the top end of the weight I 607 and has an outer diameter greater than an inner diameter of the limiting ring 609; the electromagnet II 610 is fixed in the through hole I 305 and is provided with an adsorption hole II matched with the magnetic frame 605; the electromagnet I 606 and the electromagnet II 610 are powered by the power supply; the manual weight adjusting assembly comprises a weight III placed in the weight table. The total mass of the whole device is set as M, the weight of the part movable with the driving telescopic rod III 604 is set as M0 (in the embodiment, the pad plate I 601, the driving telescopic rod III 604, the magnetic frame 605, the electromagnet I 606, the weight I 607 and the weight II 608 are included in M0, the power supply is included in M0 if it is movable with the driving telescopic rod III 604, otherwise it is not included in M0), the mass of the weight I 607 is set as M1, the mass of the weight II 608 is set as M2 and the mass of the weight III is set as M3.

[0049] In the initial state, the inner frame 2 and the weight platform are in the retracted state, that is, the top surface and the bottom surface of the outer frame 1, the inner frame 2 and the weight platform are flush, facilitating the carrying, storage and use of the device, reducing the space occupied by the device, the electromagnet I 606 and the electromagnet II 610 are in the powered state, the weight I 607 is fixed by magnetic attraction with the electromagnet I 606, the magnetic frame 605 is in the through hole I 305 and is fixed by magnetic attraction with the electromagnet II 610, and the two side pads I 601 are adjusted to be flush by the driving telescopic rod III 604, so as to be placed stably.

[0050] The working process of the device for calibrating the ultrasonic height and weight measuring instrument is as follows:

[0051] S1, the weight and height indications of the ultrasonic height and weight measuring instrument are zeroed.

[0052] S2, the device in the initial state is carried to be placed on the weighing plate 902, the bottom surface of the outer frame 1 is in contact with the weighing plate 902, the two groups of automatic weight adjusting assemblies cross the weight detector base 901 and are located on the two sides of the weight detector base 901, the pad I 601 is in a suspended state, the ultrasonic height and weight measuring instrument is started, the first weight indication m1 and the first height indication h1 are obtained, if m1=M and h1=H, it indicates that the first calibration is qualified, otherwise, the calibration is unqualified, the ultrasonic height and weight measuring instrument is adjusted until m1=M and h1=H.

[0053] S3, the pad I 601 is lowered onto the support surface of the ultrasonic height and weight measuring instrument by the extension of the driving telescopic rod III 604, the control of the electromagnet II 610 is powered off, the magnetic attraction between the magnetic frame 605 and the electromagnet II 610 is released, the driving telescopic rod III 604 is retracted, the magnetic frame 605, the electromagnet I 606, the weight I 607 and the weight II 608 are moved downward until the magnetic frame 605 is separated from the through hole I 305 and the weight II 608 is not in contact with the limiting ring 609, at this time, the weight I 607 and the weight II 608 are supported by the electromagnet I 606, the magnetic frame 605, the driving telescopic rod III 604 and the pad I 601, no force is applied to the weighing plate 902, the weight platform driving assembly is controlled to drive the weight platform to move upward along the inner frame 2 until the middle of the weight platform is flush with the top surface of the inner frame 2, the ultrasonic height and weight measuring instrument is started, the second weight indication m2 and the second height indication h2 are obtained, if m2=M-M0 and h2=1.5H, it indicates that the second calibration is qualified, otherwise, the calibration is unqualified, the ultrasonic height and weight measuring instrument is adjusted until m2=M-M0 and h2=1.5H.

[0054] S4, the control weight platform drive assembly drives the weight platform to continue to move upward along the inner frame 2, when the weight platform moves up and appears to be stuck, it indicates that the limit ring 609 contacts with the weight II 608, the control electromagnet I 606 is powered off, the magnetic adsorption between the weight I 607 and the electromagnet I 606 is released, the weight platform drive assembly drives the weight platform to continue to move upward, the limit ring 609 lifts the weight II 608 and the weight I 607, so that the weight I 607 is separated from the electromagnet I 606, until the bottom surface of the weight platform is flush with the top surface of the inner frame 2, at this time, the weight I 607 and the weight II 608 are supported by the limit ring 609 and the support pipe I 303, and the force is applied to the counterweight plate 902, the ultrasonic height and weight measuring instrument is started, the third weight indication value m3 and the third height indication value h3 are obtained, if m3=M-M0+M1+M2 and h3=2H, it indicates that the third calibration is qualified, otherwise the calibration is unqualified, the ultrasonic height and weight measuring instrument is adjusted until m3=M-M0+M1+M2 and h3=2H.

[0055] S5, the weight III placed in the weight platform is taken out, the inner frame drive assembly drives the inner frame 2 and the weight platform to move upward along the outer frame 1, until the bottom surface of the inner frame 2 is flush with the top surface of the outer frame 1, the ultrasonic height and weight measuring instrument is started, the fourth weight indication value m4 and the fourth height indication value h4 are obtained, if m4= M-M0+M1+M2-M3 and h4=3H, it indicates that the fourth calibration is qualified, otherwise the fourth calibration is unqualified, the ultrasonic height and weight measuring instrument is adjusted until m4= M-M0+M1+M2-M3 and h4=3H.

[0056] S6, after the calibration is completed, the control weight platform drive assembly drives the weight platform to move downward along the inner frame 2, the inner frame drive assembly drives the inner frame 2 and the weight platform to move downward along the outer frame 1, the weight platform and the inner frame 2 are completely retracted, the weight I 607 recontacts with the electromagnet I 606, the control electromagnet I 606 is powered on, the active telescopic rod III 604 is extended, the magnetic frame 605 is inserted into the through hole I 305, the control electromagnet II 610 is powered on, the active telescopic rod III 604 is retracted, and the device returns to the initial state.

[0057] The entire calibration process is automatic operation except that the weight III needs to be manually taken out and placed, and the entire device needs to be carried, which effectively reduces the labor intensity of the staff; the outer frame 1, the inner frame 2 and the weight platform store the weight I 607, the weight II 608 and the weight III in addition to serving as a reference for calibrating height, and the weight and the reference are not easy to lose during storage and transportation.

[0058] In the above device for calibrating the ultrasonic height and weight measuring instrument, one half of the support pipe is provided with a mark to determine whether one half of the weight platform is flush with the top surface of the inner frame 2; the electromagnet I 606 is provided with an adsorption hole I matched with the weight I 607 to position the weight I 607.

[0059] Embodiment 2

[0060] On the basis of embodiment 1, the automatic weight adjusting assembly further comprises a support seat I 602 and a reinforcing rod 603; the support seat I 602 is sleeved on the outer side of the active telescopic rod III 604, and the bottom end is fixedly connected with the base plate I 601; a plurality of reinforcing rods 603 are arranged around the support seat I 602, and the two ends are respectively connected with the base plate I 601 and the support seat I 602.

[0061] In the above device for calibrating the ultrasonic height and weight measuring instrument, the power supply comprises a battery I 611 and a battery II 612; the automatic weight adjusting assembly further comprises a socket 613, a sealing plate 614 and a plug 615; the top end of the magnetic frame 605 is provided with a mounting hole I, and the bottom end is provided with a mounting hole II; the battery I 611 is installed in the magnetic frame 605 to supply power to the electromagnet I 606; the socket 613 is installed on the battery I 611 and corresponds to the mounting hole I; the sealing plate 614 is installed on the mounting hole II and is fixedly connected with the top end of the active telescopic rod III 604; the plug 615 is installed in the through hole I 305 and is used for connecting with the socket 613; the battery II 612 is installed outside the outer frame 1 and is connected with the electromagnet II 610 and the plug 615 respectively to supply power to the electromagnet II 610 and the battery I 611.

[0062] In this embodiment, the base plate I 601, the support seat I 602, the reinforcing rod 603, the active telescopic rod III 604, the magnetic frame 605, the electromagnet I 606, the weight I 607, the weight II 608, the battery I 611, the socket 613 and the sealing plate 614 are included in M0.

[0063] In the above device for calibrating the ultrasonic height and weight measuring instrument, two opposite reserved grooves 201 are formed on the inner frame 2; two support plates I 101 corresponding to the reserved grooves 201 are arranged in the outer frame 1, the support plate I 101 is slidingly fitted in the corresponding reserved groove 201, and the reserved groove 201 is enclosed to form a telescopic rod mounting area; the inner frame driving assembly comprises an active telescopic rod I 401 and a driven telescopic rod I 402, the active telescopic rod I 401 is provided with a driving source, and the driven telescopic rod I 402 is not provided with a driving source; the active telescopic rod I 401 and the driven telescopic rod I 402 are respectively installed in the two telescopic rod mounting areas, the bottom ends are respectively connected with the corresponding support plates I 101, and the top ends are respectively connected with the corresponding reserved grooves 201. The driven telescopic rod I 402 is telescopic with the active telescopic rod I 401.

[0064] The device for calibrating the ultrasonic height and weight measuring instrument, the bottom plate 302 is provided with two through holes 306, the through holes 306 are located below the support tubes 304; the inner frame 2 is provided with two support plates 202 corresponding to the through holes 306; the weight platform driving assembly comprises a driving telescopic rod 501 and a driven telescopic rod 502, the driving telescopic rod 501 is provided with a driving source, and the driven telescopic rod 502 is not provided with a driving source; the driving telescopic rod 501 and the driven telescopic rod 502 are respectively installed in the two support tubes 304, the bottom ends are respectively connected with the corresponding support plates 202, and the top ends are respectively connected with the top plate 301. The driven telescopic rod 502 is telescopic with the driving telescopic rod 501.

[0065] In the embodiment, the driving sources of the driving telescopic rods 401, 501 and 604 can be separately provided, or a battery 612 can be used.

[0066] The device for calibrating the ultrasonic height and weight measuring instrument further comprises balance assemblies symmetrically installed on both sides of the outer frame 1; the balance assemblies comprise balance frames 701, partition plates 702 and counterweights 703; the balance frames 701 are fixedly connected with the outer frame 1; the partition plates 702 are installed in the balance frames 701, and the balance frames 701 are divided into upper spaces and lower spaces; the counterweights 703 and the battery 612 are respectively installed in the upper spaces of the two balance frames 701, the mass of the counterweight 703 is equal to that of the battery 612, so that the device is balanced; and the lower space of the balance frame 701 provides a force point for the staff to carry the device.

[0067] In the device for calibrating the ultrasonic height and weight measuring instrument, the balance frame 701 is provided with a control panel 704; the control panel 704 is powered by the battery 612; the inner frame driving assembly, the weight platform driving assembly, the driving telescopic rod 604, the electromagnet 606 and the electromagnet 610 are all controlled by the control panel 704.

[0068] In the device for calibrating the ultrasonic height and weight measuring instrument, the balance assemblies further comprise rubber handles 705; the rubber handles 705 are installed at the bottom ends of the balance frames 701, and the rubber handles 705 reduce the friction between the staff and the balance frames 701, thereby protecting the staff.

[0069] The device for calibrating the ultrasonic height and weight measuring instrument further comprises an auxiliary supporting mechanism; the auxiliary supporting mechanism comprises a supporting seat Ⅱ 801 and a backing plate Ⅱ 802; two ends of the supporting seat Ⅱ 801 are connected with the supporting plate Ⅱ 202 and the backing plate Ⅱ 802 respectively. The backing plate Ⅰ 601 and the backing plate Ⅱ 802 constitute four supporting points, so as to ensure that the whole device is placed stably. When calibration is performed, the two groups of auxiliary supporting mechanisms are arranged to cross the weight detector base 901 and are located on two sides of the weight detector base 901, and the backing plate Ⅱ 802 is in a suspended state.

[0070] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A device for calibrating an ultrasonic height and weight measuring instrument, characterized in that: It includes an outer frame (1), an inner frame (2), a weight platform, an inner frame drive component, a weight platform drive component and a weight adjustment component; The weight platform comprises a top plate (301), a support tube and a bottom plate (302); The top plate (301) and the bottom plate (302) are connected via four support pipes; The four support tubes are arranged in a square shape, namely two support tubes I (303) and two support tubes II (304), the two support tubes I (303) are located on the diagonal I of the square, and the two support tubes II (304) are located on the diagonal II of the square; Two through holes I (305) are provided on the bottom plate (302), and the through holes I (305) are located below the support tube I (303); The outer frame (1), the inner frame (2), and the weight platform have the same height; The weight platform is slidingly sleeved in the inner frame (2), and the weight platform and the inner frame (2) are connected via a weight platform driving assembly, and the weight platform is driven by the weight platform driving assembly to move up and down along the inner frame (2); The inner frame (2) is slidably sleeved in the outer frame (1), and the inner frame (2) and the outer frame (1) are connected via an inner frame driving assembly, and the inner frame (2) and the weight platform are driven by the inner frame driving assembly to move up and down along the outer frame (1); The weight adjustment component includes an automatic weight adjustment component and a manual weight adjustment component; The automatic weight adjustment components are provided in two groups, corresponding to the support tube I (303); Each set of automatic weight adjustment components includes a backing plate I (601), an active telescopic rod III (604), a magnetic frame (605), an electromagnet I (606), a weight I (607), a weight II (608), a limiting ring (609), an electromagnet II (610) and a power supply; The active telescopic rod III (604) is provided with a driving source, the bottom end of which is fixedly connected to the backing plate I (601), and the top end of which is fixedly connected to the magnetic frame (605); An electromagnet I (606) is fixed to the top of the magnetic frame (605); The limiting ring (609) is fixed in the support tube I (303); The bottom end of the weight I (607) is provided with a magnetic layer, slides through the limiting ring (609), and is located above the electromagnet I (606); The weight II (608) is located in the support tube I (303) and is fixedly connected to the top of the weight I (607). The outer diameter of the weight II (608) is larger than the inner diameter of the limiting ring (609); The electromagnet II (610) is fixed in the through hole I (305) and is provided with an adsorption hole II that cooperates with the magnetic frame (605); The electromagnet I (606) and the electromagnet II (610) are both powered by a power supply; The manual weight adjustment component includes a weight III placed in the weight platform.

2. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 1, characterized in that: A mark is provided at one-half of the support tube; The electromagnet I (606) is provided with an adsorption hole I that cooperates with the weight I (607).

3. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 1, wherein: The automatic weight adjustment assembly further includes a support seat I (602) and a reinforcing rod (603); The support seat I (602) is sleeved on the outside of the active telescopic rod III (604), and the bottom end is fixedly connected to the pad I (601); A plurality of reinforcing rods (603) are arranged around the support base I (602), and the two ends are connected to the pad I (601) and the support base I (602) respectively.

4. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 1, wherein: The power supply includes battery I (611) and battery II (612); The automatic weight adjustment assembly further includes a socket (613), a sealing plate (614) and a plug (615); The top end of the magnetic frame (605) is provided with a mounting hole I, and the bottom end is provided with a mounting hole II; The battery I (611) is installed in the magnetic frame (605) to supply power to the electromagnet I (606); The socket (613) is mounted on the battery I (611) and corresponds to the mounting hole I; The sealing plate (614) is mounted on the mounting hole II and fixedly connected to the top end of the active telescopic rod III (604); The plug (615) is installed in the through hole I (305) and is used to connect with the socket (613); The battery II (612) is installed outside the outer frame (1) and is connected to the electromagnet II (610) and the plug (615) respectively.

5. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 1, wherein: The inner frame (2) is provided with two opposite reserved grooves (201); Two support plates I (101) corresponding to the reserved grooves (201) are provided in the outer frame (1), and the support plates I (101) are slidably engaged in the corresponding reserved grooves (201) to enclose the telescopic rod installation area with the reserved grooves (201); The inner frame driving assembly includes an active telescopic rod I (401) and a driven telescopic rod I (402), wherein the active telescopic rod I (401) is provided with a driving source, and the driven telescopic rod I (402) is not provided with a driving source; The active telescopic rod I (401) and the driven telescopic rod I (402) are respectively installed in the two telescopic rod installation areas, with their bottom ends respectively connected to the corresponding support plates I (101) and their top ends respectively connected to the corresponding reserved grooves (201).

6. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 1, characterized in that: Two through holes II (306) are provided on the bottom plate (302), and the through holes II (306) are located below the support tube II (304); Two support plates II (202) corresponding to the through holes II (306) are provided in the inner frame (2); The weight platform driving assembly includes an active telescopic rod II (501) and a driven telescopic rod II (502), wherein the active telescopic rod II (501) is provided with a driving source, and the driven telescopic rod II (502) is not provided with a driving source; The active telescopic rod II (501) and the driven telescopic rod II (502) are respectively installed in two support tubes II (304), with their bottom ends respectively connected to the corresponding support plates II (202) and their top ends respectively connected to the top plates (301).

7. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 4, characterized in that: It also includes a balancing component symmetrically mounted on both sides of the outer frame (1); The balancing assembly comprises a balancing frame (701), a partition (702) and a counterweight (703); The balancing frame (701) is fixedly connected to the outer frame (1); The partition (702) is installed in the balancing frame (701) to separate the balancing frame (701) into an upper space and a lower space; The counterweight (703) and battery II (612) are respectively installed in the upper space of the two balancing frames (701), and the masses of the counterweight (703) and battery II (612) are equal.

8. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 7, characterized in that: A control panel (704) is mounted on the balancing frame (701); The control panel (704) is powered by battery II (612); The inner frame drive assembly, the weight platform drive assembly, the active telescopic rod III (604), the electromagnet I (606), and the electromagnet II (610) are all controlled by the control panel (704).

9. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 7, characterized in that: The balancing assembly also includes a rubber grip (705); A rubber grip (705) is mounted on the bottom end of the balancing frame (701).

10. The device for calibrating an ultrasonic height and weight measuring instrument according to claim 3, characterized in that: Also included is an auxiliary support mechanism; The auxiliary support mechanism includes a support seat II (801) and a pad II (802); The two ends of the support seat II (801) are respectively connected to the support plate II (202) and the pad II (802).

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