Device for calibrating ultrasonic height and weight measuring instrument

Abstract

The invention provides a device for calibrating an ultrasonic height and weight measuring instrument, which belongs to the technical field of measurement and 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, a supporting pipe and a bottom plate; the top plate and the bottom plate are connected through four supporting pipes. The weight table is driven by a 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 adopted, the whole calibration process is automatically operated 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 workers is effectively reduced; the outer frame, the inner frame and the weight table are used as reference objects for calibrating the height and also used for storing the weight I, the weight II and the weight III, and the weights and the reference objects are not prone to being lost in the storage and transportation process.

Description

Technical Field

[0001] The invention belongs to the technical field of measurement, and particularly discloses a device for calibrating an ultrasonic height and weight measuring instrument. Background Art

[0002] Ultrasonic height and weight measuring instruments can automatically measure height, weight, and BMI index, providing fast, accurate results. The instrument is extremely convenient and quick, harmless to the human body, and suitable for a wide range of people. For example, Chinese patent publication number CN221445261U discloses a height and weight detection device comprising 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 surface of the weight detector base is connected to the weighing plate, the connecting frame is mounted on the outer peripheral wall of the weight detector base, and the ultrasonic height detector is mounted on the upper end surface of the connecting frame, above the weighing plate. The detection end of the ultrasonic height detector faces downward, and the display screen is mounted on the outer peripheral wall of the connecting frame, both facing one side of the weight detector base.

[0003] When calibrating weight, an ultrasonic height and weight meter requires manual loading and unloading of weights of varying masses onto the weighing plate multiple times. The weight reading on the display is then read, and the accuracy of the meter is determined by whether the weight reading matches the weight. Similarly, when calibrating height, reference objects of varying heights must be manually loaded and unloaded multiple times onto the weighing plate. The height reading on the display is then read, and the accuracy of the meter is determined by whether the height reading matches the reference object. This entire process requires multiple loading and unloading of weights and reference objects, which is labor-intensive, and multiple weights and reference objects can be easily lost during storage and transportation. Summary of the Invention

[0004] The present invention provides a device for calibrating an ultrasonic height and weight measuring instrument, which solves at least one of the following technical problems: 1. The existing ultrasonic height and weight measurement instrument calibration method requires multiple loading / unloading of weights and reference objects, which is labor-intensive for workers; 2. Multiple weights and reference objects are easily lost during storage and transportation.

[0005] The above-mentioned device for calibrating an ultrasonic height and weight measuring instrument comprises an outer frame, an inner frame, a weight platform, an inner frame drive assembly, a weight platform drive assembly and a weight adjustment assembly; the weight platform comprises a top plate, a support tube and a bottom plate; the top plate and the bottom plate are connected by four support tubes; the four support tubes are arranged in a square, namely two support tubes I and two support tubes II, two support tubes I are on the diagonal I of the square, and two support tubes II are on the diagonal II of the square; two through holes I are provided on the bottom plate, and through hole I is located below support tube I; the outer frame, inner frame and weight platform have the same height; the weight platform is slidably sleeved in the inner frame, and the weight platform and the inner frame are connected by the weight platform drive assembly, and the weight platform is driven by the weight platform drive assembly to move up and down along the inner frame; the inner frame is slidably sleeved in the outer frame, and the inner frame and the outer frame are connected by the inner frame drive assembly, and the inner frame and the weight platform are driven by the inner frame drive assembly to move up and down along the outer frame. Movement; the weight adjustment component includes an automatic weight adjustment component and a manual weight adjustment component; there are two groups of automatic weight adjustment components, corresponding to the support tube I; each group of automatic weight adjustment components includes a pad I, an active telescopic rod III, a magnetic frame, an electromagnet I, a weight I, a weight II, a limit ring, an electromagnet II and a power supply; the active telescopic rod III is provided with a driving source, the bottom end is fixedly connected to the pad I, and the top end is fixedly connected to the magnetic frame; the top end of the magnetic frame is fixed with an electromagnet I; the limit ring is fixed in the support tube I; the bottom end of the weight I is provided with a magnetic layer, which slides through the limit ring and is located above the electromagnet I; the weight II is located in the support tube I and is fixedly connected to the top end of the weight I, and the outer diameter of the weight II is larger than the inner diameter of the limit ring; the electromagnet II is fixed in the through hole I and is provided with an adsorption hole II that cooperates with the magnetic frame; the electromagnet I and the electromagnet II are both powered by a power supply; the manual weight adjustment component includes a weight III placed in the weight platform.

[0006] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, a mark is provided at one-half of the support tube; and an adsorption hole I is provided on the electromagnet I to cooperate with the weight I.

[0007] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, the automatic weight adjustment component also includes a support seat I and a reinforcement rod; the support seat I is sleeved on the outside of the active telescopic rod III, and the bottom end is fixedly connected to the pad I; multiple reinforcement rods are arranged around the support seat I, and the two ends are respectively connected to the pad I and the support seat I.

[0008] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, the power supply includes battery I and battery II; the automatic weight adjustment component also includes a socket, a sealing plate and a plug; the top of the magnetic frame is provided with a mounting hole I, and the bottom is provided with a mounting hole II; battery I is installed in the magnetic frame to power the electromagnet I; the socket is installed on battery I, corresponding to the mounting hole I; the sealing plate is installed on the mounting hole II and is fixedly connected to the top of the active telescopic rod III; the plug is installed in the through hole I for connection to the socket; battery II is installed outside the outer frame and is respectively connected to the electromagnet II and the plug.

[0009] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, two opposing reserved grooves are provided on the inner frame; two support plates I corresponding to the reserved grooves are provided in the outer frame, and the support plates I are slidably engaged in the corresponding reserved grooves and enclosed with the reserved grooves to form a telescopic rod installation area; the inner frame drive assembly includes an active telescopic rod I and a driven telescopic rod I, the active telescopic rod I is provided with a driving source, and the driven telescopic rod I is not provided with a driving source; the active telescopic rod I and the driven telescopic rod I are respectively installed in the two telescopic rod installation areas, and the bottom ends are respectively connected to the corresponding support plates I, and the top ends are respectively connected to the corresponding reserved grooves.

[0010] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, two through holes II are provided on the bottom plate, and the through holes II are located below the support tube II; two support plates II corresponding to the through holes II are provided in the inner frame; the weight platform drive assembly includes an active telescopic rod II and a driven telescopic rod II, the active telescopic rod II is provided with a driving source, and the driven telescopic rod II is not provided with a driving source; the active telescopic rod II and the driven telescopic rod II are respectively installed in the two support tubes II, and the bottom ends are respectively connected to the corresponding support plates II, and the top ends are respectively connected to the top plate.

[0011] The above-mentioned device for calibrating an ultrasonic height and weight measuring instrument also includes a balancing assembly symmetrically installed on both sides of the outer frame; the balancing assembly includes a balancing frame, a partition and a counterweight; the balancing frame is fixedly connected to the outer frame; the partition is installed in the balancing frame, dividing the balancing frame into an upper space and a lower space; the counterweight and battery II are respectively installed in the upper spaces of the two balancing frames, and the mass of the counterweight and battery II are equal.

[0012] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, a control panel is installed on the balance frame; the control panel is powered by battery II; the inner frame drive assembly, weight platform drive assembly, active telescopic rod III, electromagnet I, and electromagnet II are all controlled by the control panel.

[0013] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, the balancing component further includes a rubber handle; the rubber handle is installed at the bottom end of the balancing frame.

[0014] The above-mentioned device for calibrating an ultrasonic height and weight measuring instrument also includes an auxiliary support mechanism; the auxiliary support mechanism includes a support base II and a pad II; the two ends of the support base II are respectively connected to the support plate II and the pad II.

[0015] Compared with the prior art, the present invention has the following beneficial effects.

[0016] 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

[0017] 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.

[0018] Figure 1 A schematic diagram of the structure of a device for calibrating an ultrasonic height and weight measuring instrument; Figure 2 for Figure 1 sectional view of 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); 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); Figure 5 This is a connection diagram of the inner frame and the weight platform; Figure 6 This is a schematic diagram of the installation of the weight platform drive component and the automatic weight adjustment component; Figure 7 for Figure 6 sectional view of Figure 8 for Figure 7 Enlarged view of part A; Figure 9 This is a disassembled diagram of the automatic weight adjustment component; Figure 10 This is a disassembled diagram of the magnetic rack, battery I, socket, and sealing plate; Figure 11 Schematic diagram of the connection between active telescopic rod II and support plate II; Figure 12 is a schematic diagram of the balancing component; Figure 13 Schematic diagram of the device for calibrating an ultrasonic height and weight measuring instrument placed on a weighing plate.

[0019] Reference numerals in the figure: 1, outer frame; 101, support plate I; 2. Inner frame; 201. Reserved slot; 202. Support plate II; 301, top plate; 302, bottom plate; 303, support tube I; 304, support tube II; 305, through hole I; 306, through hole II; 401, active telescopic rod I; 402, driven telescopic rod I; 501, active telescopic rod II; 502, driven telescopic rod II; 601, backing plate I; 602, support base I; 603, reinforcement rod; 604, active telescopic rod III; 605, magnetic frame; 606, electromagnet I; 607, weight I; 608, weight II; 609, limit ring; 610, electromagnet II; 611, battery I; 612, battery II; 613, socket; 614, sealing plate; 615, plug; 701, balancing frame; 702, partition; 703, counterweight; 704, control panel; 705, rubber handle; 801, support seat II; 802, pad II; 901. Weight detector base; 902. Weighing plate; 903. Connecting frame; 904. Ultrasonic height detector; 905. Display screen. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0021] The present invention provides a device for calibrating an ultrasonic height and weight measuring instrument, which is used to calibrate the ultrasonic height and weight measuring instrument. The ultrasonic height and weight measuring instrument includes a weight detector base 901, a weighing plate 902, a connecting frame 903, an ultrasonic height detector 904, and a display screen 905.

[0022] Example 1 This embodiment provides a device for calibrating an ultrasonic height and weight measuring instrument, comprising an outer frame 1, an inner frame 2, a weight platform, an inner frame drive assembly, a weight platform drive assembly, and a weight adjustment assembly.

[0023] The weight platform includes a top plate 301, a support tube and a bottom plate 302; the top plate 301 and the bottom plate 302 are connected by four support tubes; the four support tubes are arranged in a square, namely two support tubes I 303 and two support tubes II 304, the two support tubes I 303 are on the diagonal I of the square, and the two support tubes II 304 are 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 tubes I 303.

[0024] The outer frame 1, the inner frame 2 and the weight platform have the same height, which is set to H; the weight platform is slidably sleeved in the inner frame 2, and the weight platform and the inner frame 2 are connected by a weight platform driving component, and the weight platform is driven by the weight platform driving component 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 by an inner frame driving component, and the inner frame 2 and the weight platform are driven by the inner frame driving component to move up and down along the outer frame 1.

[0025] The weight adjustment component includes an automatic weight adjustment component and a manual weight adjustment component; there are two groups of automatic weight adjustment components, corresponding to the support tube Ⅰ303; each group of automatic weight adjustment components includes a pad Ⅰ601, an active telescopic rod Ⅲ604, a magnetic frame 605, an electromagnet Ⅰ606, a weight Ⅰ607, a weight Ⅱ608, a limit ring 609, an electromagnet Ⅱ610 and a power supply; the active telescopic rod Ⅲ604 is provided with a driving source, the bottom end is fixedly connected to the pad Ⅰ601, and the top end is fixedly connected to the magnetic frame 605; the top end of the magnetic frame 605 is fixed with an electromagnet Ⅰ606; the limit ring 609 is fixed in the support tube I 303; the bottom end of the weight I 607 is provided with a magnetic layer, which slides through the limit 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 limit 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 assembly includes a weight III placed in the weight platform. The total mass of the entire device is set to M, and the weight of the part that can move with the active telescopic rod III 604 is set to M0 (in this embodiment, the pad I 601, the active 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. If the power supply can move with the active telescopic rod III 604, it is included in M0; otherwise, it is not included in M0). The mass of the weight I 607 is set to M1, the mass of the weight II 608 is set to M2, and the mass of the weight III is set to M3.

[0026] In the initial state, the inner frame 2 and the weight platform are in a retracted state, that is, the top and bottom surfaces of the outer frame 1, the inner frame 2, and the weight platform are all flush, which facilitates the transportation, storage and use of the device and reduces the space occupied by the device. The electromagnet I606 and the electromagnet II610 are both in an energized state, the weight I607 is fixed to the electromagnet I606 by magnetic adsorption, the magnetic frame 605 is in the through hole I305 and is fixed to the electromagnet II610 by magnetic adsorption, and the two side pads I601 are adjusted to be flush through the active telescopic rod III604 so that they can be placed stably.

[0027] The working process of the device for calibrating the ultrasonic height and weight measuring instrument is as follows: S1, zeroing the weight and height indications of the ultrasonic height and weight measuring instrument; S2, move the device in the initial state to be placed on the weighing plate 902, with the bottom surface of the outer frame 1 in contact with the weighing plate 902, so that the two sets of automatic weight adjustment components span the weight detector base 901 and are located on both sides of the weight detector base 901, and the pad I 601 is in a suspended state. Start the ultrasonic height and weight measuring instrument to obtain the first weight indication m1 and the first height indication h1. If m1=M and h1=H, it means that the first calibration is qualified. Otherwise, the calibration fails. Adjust the ultrasonic height and weight measuring instrument until m1=M and h1=H. S3, the active telescopic rod III 604 extends to make the pad I 601 fall onto the support surface of the ultrasonic height and weight measuring instrument, and the electromagnet II 610 is controlled to be powered off. The magnetic attraction between the magnetic frame 605 and the electromagnet II 610 is released, and the active telescopic rod III 604 contracts, so that the magnetic frame 605, the electromagnet I 606, the weight I 607, and the weight II 608 move downward until the magnetic frame 605 is out of the through hole I 305 and the weight II 608 is not in contact with the limit ring 609. At this time, the weight I 607 and the weight II 608 are held by the electromagnet I 606 and the magnetic frame 605. 5. Actively support the telescopic rod III 604 and the pad I 601. No force is applied to the weighing plate 902. The weight platform drive assembly is controlled to drive the weight platform upward along the inner frame 2 until the half of the weight platform is flush with the top surface of the inner frame 2. The ultrasonic height and weight measuring instrument is started to obtain the second weight value m2 and the second height value h2. If m2 = M-M0 and h2 = 1.5H, the second calibration is qualified. Otherwise, the calibration fails. The ultrasonic height and weight measuring instrument is adjusted until m2 = M-M0 and h2 = 1.5H. S4, control the weight platform drive assembly to drive the weight platform to continue to move upward along the inner frame 2. When the weight platform is stuck when moving up, it means that the limit ring 609 is in contact with the weight II 608. The control electromagnet I 606 is powered off, and the magnetic attraction 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 in contact with the inner frame 2. The top surface of the weight is flush, and weights I 607 and II 608 are supported by the limit ring 609 and the support tube I 303. A force is applied to the weighing plate 902, and the ultrasonic height and weight measuring instrument is started to obtain the third weight indication m3 and the third height indication h3. If m3 = M - M0 + M1 + M2 and h3 = 2H, it means that the third calibration is qualified. Otherwise, the calibration fails. The ultrasonic height and weight measuring instrument is adjusted until m3 = M - M0 + M1 + M2 and h3 = 2H. S5, remove weight III placed in the weight platform, and 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 to obtain the fourth weight value m4 and the fourth height value h4. If m4 = M-M0+M1+M2-M3, and h4 = 3H, it means that the fourth calibration is qualified. Otherwise, the fourth calibration fails. The ultrasonic height and weight measuring instrument is adjusted until m4 = M-M0+M1+M2-M3, and h4 = 3H; S6, calibration is completed, the weight platform drive assembly is controlled to drive 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 contacts the electromagnet I 606 again, the electromagnet I 606 is controlled to be energized, the active telescopic rod III 604 is extended, and the magnetic frame 605 is pushed into the through hole I 305, the electromagnet II 610 is controlled to be energized, the active telescopic rod III 604 is retracted, and the device returns to its initial state.

[0028] Except for the manual placement and removal of weight III and the transportation of the entire device, the entire calibration process is automated, effectively reducing the labor intensity of the staff; in addition to serving as reference objects for calibrating height, the outer frame 1, inner frame 2, and weight table also store weight I607, weight II608, and weight III. The weights and reference objects are not easily lost during storage and transportation.

[0029] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, a mark is provided at one-half of the support tube to determine whether one-half of the weight platform is flush with the top surface of the inner frame 2; an adsorption hole I is provided on the electromagnet I606 to cooperate with the weight I607 to position the weight I607.

[0030] Example 2 Based on Example 1, the automatic weight adjustment component also includes a support seat I602 and a reinforcement rod 603; the support seat I602 is mounted on the outside of the active telescopic rod III604, and the bottom end is fixedly connected to the pad I601; multiple reinforcement rods 603 are arranged around the support seat I602, and the two ends are respectively connected to the pad I601 and the support seat I602.

[0031] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, the power supply includes battery I 611 and battery II 612; the automatic weight adjustment component also includes a socket 613, a sealing plate 614 and a plug 615; the top of the magnetic frame 605 is provided with a mounting hole I, and the bottom is provided with a mounting hole II; battery I 611 is installed in the magnetic frame 605 to supply power to the electromagnet I 606; the socket 613 is installed on battery I 611, corresponding to the mounting hole I; the sealing plate 614 is installed on the mounting hole II and is fixedly connected to the top of the active telescopic rod III 604; the plug 615 is installed in the through hole I 305 for connecting to the socket 613; the battery II 612 is installed outside the outer frame 1, and is respectively connected to the electromagnet II 610 and the plug 615 to supply power to the electromagnet II 610 and the battery I 611.

[0032] In this embodiment, the pad 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.

[0033] In the device for calibrating an ultrasonic height and weight measuring instrument, the inner frame 2 is provided with two opposing reserved slots 201. Two support plates I 101 corresponding to the reserved slots 201 are disposed within the outer frame 1. The support plates I 101 slide and fit within the corresponding reserved slots 201, forming a telescopic rod mounting area. The inner frame drive assembly includes an active telescopic rod I 401 and a passive telescopic rod I 402. The active telescopic rod I 401 is provided with a drive source, while the passive telescopic rod I 402 is not. The active telescopic rod I 401 and the passive telescopic rod I 402 are respectively mounted within the two telescopic rod mounting areas, with their bottom ends connected to the corresponding support plates I 101 and their top ends connected to the corresponding reserved slots 201. The passive telescopic rod I 402 extends and retracts with the active telescopic rod I 401.

[0034] In the device for calibrating an ultrasonic height and weight measuring instrument, the bottom plate 302 is provided with two through-holes II306, located below the support tube II304. Two support plates II202 corresponding to the through-holes II306 are provided within the inner frame 2. The weight platform drive assembly includes an active telescopic rod II501 and a passive telescopic rod II502. The active telescopic rod II501 is provided with a drive source, while the passive telescopic rod II502 is not. The active telescopic rod II501 and the passive telescopic rod II502 are respectively installed within the two support tubes II304, with their bottom ends connected to the corresponding support plates II202 and their top ends connected to the top plate 301. The passive telescopic rod II502 extends and retracts with the active telescopic rod II501.

[0035] In this embodiment, the driving sources of the active telescopic rod I 401 , the active telescopic rod II 501 , and the active telescopic rod III 604 may be provided separately, or the battery II 612 may be used.

[0036] The above-mentioned device for calibrating an ultrasonic height and weight measuring instrument also includes a balancing assembly symmetrically installed on both sides of the outer frame 1; the balancing assembly includes 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, dividing the balancing frame 701 into an upper space and a lower space; the counterweight 703 and the battery II 612 are respectively installed in the upper spaces of the two balancing frames 701, and the masses of the counterweight 703 and the battery II 612 are equal to ensure the balance of the device; the lower space of the balancing frame 701 provides a fulcrum for workers to carry the device.

[0037] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, a control panel 704 is installed on the balance 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.

[0038] In the above-mentioned device for calibrating an ultrasonic height and weight measuring instrument, the balancing assembly further includes a rubber handle 705 ; the rubber handle 705 is installed at the bottom end of the balancing frame 701 . The provision of the rubber handle 705 reduces friction between the worker and the balancing frame 701 , thereby protecting the worker.

[0039] The aforementioned device for calibrating an ultrasonic height and weight measuring instrument also includes an auxiliary support mechanism comprising a support base II 801 and a pad II 802. The two ends of the support base II 801 are connected to the support plate II 202 and pad II 802, respectively. Pad I 601 and pad II 802 form four support points, ensuring the stability of the entire device. During calibration, the two sets of auxiliary support mechanisms are positioned across the weight measuring instrument base 901 and on either side of the base, with pad II 802 suspended in the air.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

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 assembly 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 handle (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).

Images