CN215726333U

CN215726333U - Automatic calibration structure for electronic balance

Info

Publication number: CN215726333U
Application number: CN202122002808.1U
Authority: CN
Inventors: 王胜利; 冯霞; 李颖; 李天祐; 宋超凡
Original assignee: China Gauge Measurement And Testing Co ltd
Current assignee: China Gauge Measurement And Testing Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-01
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses an automatic calibration structure for an electronic balance, which relates to the field of balance calibration and comprises an adjusting base, wherein the upper surface of the adjusting base is connected with an electronic balance main body through a protection device, a calibrator is fixedly connected at the center of the upper surface of the electronic balance main body, the calibrator comprises a calibration shell, the lower surface of the calibration shell is fixedly connected with the center of the upper surface of the electronic balance main body, a micro cylinder is fixedly connected at the center of the lower surface of the inner wall of the calibration shell, and the upper end of the micro cylinder is automatically connected with a rotating connector. The utility model can clearly observe the offset position and the reverse direction of the device, is convenient for integral adjustment, and can calibrate the electronic balance when the electronic balance is placed, thereby preventing the error of the device in weighing caused by inaccurate placement.

Description

Automatic calibration structure for electronic balance

Technical Field

The utility model relates to the field of balance calibration, in particular to an automatic calibration structure for an electronic balance.

Background

People refer to a balance for balancing the weight of a weighed object by electromagnetic force as an electronic balance, and the electronic balance is characterized by accurate and reliable weighing, quick and clear display, an automatic detection system, a simple and convenient automatic calibration device, overload protection and other devices, is used for weighing the mass of an object, generally adopts a strain sensor, a capacitance sensor, an electromagnetic balance type sensor and a strain sensor, has simple structure and low manufacturing cost, but has limited precision, and cannot realize high precision before 2009; the electronic balance using the electromagnetic balance sensor has the characteristics of accurate and reliable weighing, quick and clear display, automatic detection system, simple and convenient automatic calibration device, overload protection and the like.

At present, the electronic balance needs to be calibrated firstly when being used, so that errors are prevented, the existing electronic balance is generally placed on a plane smooth to glue when being used, but the electronic balance is not absolutely horizontal and flat when being placed and the placed plane, so that the electronic balance can be caused to have errors when being weighed.

Therefore, it is necessary to invent an automatic calibration structure for an electronic balance to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic calibration structure for an electronic balance, which aims to solve the problem that the electronic balance proposed in the background art is generally placed on a flat plane of glue when in use, but the electronic balance is not absolutely horizontal and flat when in placement and the placed plane, so that errors occur when the electronic balance is used for weighing.

In order to achieve the purpose, the utility model provides the following technical scheme: an automatic calibration structure for an electronic balance comprises an adjusting base, wherein the upper surface of the adjusting base is connected with an electronic balance main body through a protection device, and a calibrator is fixedly connected to the center of the upper surface of the electronic balance main body;

the calibrator comprises a calibration shell, the lower surface of the calibration shell is fixedly connected with the center of the upper surface of an electronic balance main body, the center of the lower surface of the inner wall of the calibration shell is fixedly connected with a micro cylinder, the upper end of the micro cylinder is automatically connected with a rotating connector, the surface of one side of the rotating connector is fixedly connected with an offset pointer, the upper surface of the calibration shell is fixedly connected with a transparent shell, the inner wall of the transparent shell is provided with a bubble cavity, and calibration beads are placed in the inner wall of the bubble cavity;

the inner wall of adjusting the base has seted up the installation cavity, the equal fixedly connected with bearing in inner wall upper surface four corners department of installation cavity is a plurality of the equal fixedly connected with threaded rod of lower surface of bearing, it is a plurality of the equal fixedly connected with worm wheel in pole wall surface of threaded rod upper surface, the both sides of adjusting the base are all rotated and are connected with the worm that two symmetries set up, and are a plurality of a side surface of worm meshes with corresponding worm wheel surface respectively, and is a plurality of the equal threaded connection in lower surface of threaded rod has the threaded sleeve, the inner wall lower surface four corners department of installation cavity all sets up with the circular opening of threaded sleeve assorted, and is a plurality of the threaded sleeve all extends to the lower surface of adjusting the base through corresponding circular opening, and is a plurality of the equal fixedly connected with bottom plate of threaded sleeve's lower surface.

Preferably, the lower surface of the bottom plate is fixedly connected with a non-slip mat, and the non-slip mat is made of rubber materials.

Preferably, the upper surface of the threaded sleeve is fixedly connected with an anti-falling ring, and one end of the worm is fixedly connected with a knob.

Preferably, it is a plurality of the both sides equal fixedly connected with direction strip shaped plate in threaded sleeve's both sides surface, it is a plurality of the direction opening has all been seted up to circular open-ended both sides, and is a plurality of the surface of direction strip shaped plate is corresponding direction opening inner wall sliding connection.

Preferably, the protector includes transparent protection case, the lower surface of transparent protection case and the last fixed surface who adjusts the base are connected, the center department of transparent protection incasement wall lower surface and the lower fixed surface who calibrates the shell are connected, the surperficial one side of transparent protection case is connected with the chamber door through the hinge rotation, surperficial one side fixedly connected with handle of chamber door.

Preferably, the two sides of the lower surface of the electronic balance main body are fixedly connected with supporting blocks, and the upper surfaces of the supporting blocks are jointly provided with the article placing plate.

The utility model has the technical effects and advantages that:

1. through setting up the regulation base, the calibration shell, little shape cylinder, rotate the connector, the skew pointer, transparent shell, the bubble cavity, the calibration pearl, the bearing, the threaded rod, the worm wheel, the worm, the screw sleeve, the bottom plate to can be very clear observe the device and place the position and the reversal of skew, be convenient for carry out the overall adjustment, can also calibrate electronic balance when having placed electronic balance, prevent to appear because of placing inaccurate problem and lead to the device error in weighing.

2. Through setting up the slipmat to can prevent that the device from taking place the slip phenomenon because place the plane wet and smooth, through setting up the anticreep ring, thereby can prevent that screw sleeve and regulation base from taking place the condition that drops in adjusting device.

3. Through setting up direction strip shaped plate, direction opening to can lead reciprocating of threaded sleeve, through setting up transparent guard box, chamber door, handle, thereby can protect the electronic balance main part, and conveniently open the chamber door and use.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic front sectional view of the present invention.

FIG. 3 is a schematic diagram of the calibrator according to the present invention.

Fig. 4 is a schematic cross-sectional view of an adjusting base according to the present invention.

In the figure: 1. adjusting the base; 2. an electronic balance body; 3. calibrating the shell; 4. a miniature cylinder; 5. rotating the connector; 6. offsetting the pointer; 7. a transparent shell; 8. a bubble cavity; 9. calibrating the beads; 10. a bearing; 11. a threaded rod; 12. a worm gear; 13. a worm; 14. a threaded sleeve; 16. a base plate; 17. a non-slip mat; 18. a knob; 19. an anti-drop ring; 20. a guide strip plate; 21. a guide opening; 22. a transparent protection box; 23. a box door; 24. a handle; 25. a support block; 26. an article placement tray.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides an automatic calibration structure for an electronic balance, which is shown in figures 1-4 and comprises an adjusting base 1, wherein the upper surface of the adjusting base 1 is connected with an electronic balance main body 2 through a protection device, a calibrator is fixedly connected at the center of the upper surface of the electronic balance main body 2, and the calibrator can be used for weighing objects and installing the calibrator;

as shown in fig. 3, the calibrator comprises a calibration shell 3, the lower surface of the calibration shell 3 is fixedly connected with the center of the upper surface of the electronic balance main body 2, the center of the lower surface of the inner wall of the calibration shell 3 is fixedly connected with a micro cylinder 4, the upper end of the micro cylinder 4 is automatically connected with a rotating connector 5, the rotating connector 5 is a deviation pointer 6 fixedly connected with the surface of one side, the upper surface of the calibration shell 3 is fixedly connected with a transparent shell 7, the inner wall of the transparent shell 7 is provided with a bubble cavity, and a calibration bead 9 is placed in the inner wall of the bubble cavity, so that the position where the device is placed to deviate and the direction can be clearly observed, and the overall adjustment is facilitated;

as shown in fig. 4, an inner wall of the adjusting base 1 is provided with an installation cavity, four corners of an upper surface of the inner wall of the installation cavity are fixedly connected with bearings 10, lower surfaces of the bearings 10 are fixedly connected with threaded rods 11, rod wall surfaces of upper surfaces of the threaded rods 11 are fixedly connected with worm wheels 12, two sides of the adjusting base 1 are rotatably connected with two symmetrically arranged worms 13, one side surfaces of the worms 13 are respectively meshed with the surfaces of the corresponding worm wheels 12, lower surfaces of the threaded rods 11 are respectively connected with threaded sleeves 14 in a threaded manner, four corners of a lower surface of the inner wall of the installation cavity are respectively provided with a circular opening matched with the threaded sleeves 14, the threaded sleeves 14 extend to the lower surface of the adjusting base 1 through the corresponding circular openings, lower surfaces of the threaded sleeves 14 are respectively and fixedly connected with a bottom plate 16, so as to calibrate the electronic balance after the electronic balance is placed, the problem of inaccurate placement causes the device to appear the error when weighing is prevented.

As shown in fig. 1 and 2, the protector includes transparent protection box 22, the lower surface of transparent protection box 22 is connected with the last fixed surface who adjusts base 1, the center department of transparent protection box 22 inner wall lower surface is connected with the lower fixed surface of calibration shell 3, surface one side of transparent protection box 22 is connected with chamber door 23 through hinge rotation, surface one side fixedly connected with handle 24 of chamber door 23, can protect electronic balance main part 2, and conveniently open chamber door 23 and use, the equal fixedly connected with bracer 25 in lower surface both sides of electronic balance main part 2, article placing tray 26 has been placed jointly to the upper surface of two bracers 25, be convenient for place the article that needs weigh, and be convenient for take off when observing calibrating device and observe.

As shown in fig. 3, the equal fixedly connected with slipmat 17 of lower surface of a plurality of bottom plates 16, a plurality of slipmats 17 are made of rubber materials, can prevent the device from taking place the slip phenomenon because it is wet smooth to place the plane, the equal fixedly connected with anticreep ring 19 of upper surface of a plurality of threaded sleeves 14, can prevent that threaded sleeves 14 from taking place the condition that drops with regulation base 1 in adjusting device, the equal fixedly connected with knob 18 of one end of a plurality of worms 13, the equal fixedly connected with direction strip shaped plate 20 in both sides surface of a plurality of threaded sleeves 14, direction opening 21 has all been seted up to a plurality of circular open-ended both sides, the surface of a plurality of direction strip shaped plates 20 is corresponding direction opening 21 inner wall sliding connection, can lead reciprocating of threaded sleeves 14.

The working principle of the utility model is as follows: firstly, the device is placed on a relatively flat desktop, then a box door 23 is opened through a handle 24, then an article placing disc 26 is taken out, then the reverse direction of a calibration bead 9 and an offset pointer 6 in a bubble cavity 8 is observed, finally, a worm 13 at a corresponding position is rotated through the observed reverse direction, when the worm 13 is rotated, the worm 13 is driven by a knob 18 to rotate, the worm 13 drives a worm wheel 12 to rotate, the worm wheel 12 drives a threaded rod 11 to rotate, the threaded rod 11 drives a threaded sleeve 14 to move, and the threaded sleeve 14 moves up and down in a matching manner of a guide strip-shaped plate 20 and a guide opening 21, so that the device is subjected to flat calibration and then is carried out until the calibration bead 9 is positioned at the center of the bubble cavity 8;

then, after the article placing tray 26 is placed on the lower surfaces of the two brace pieces 25, the electronic balance main body 2 is zeroed, and finally, the article to be weighed is placed in the article placing tray 26 to be weighed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. An automatic calibration structure for an electronic balance, characterized in that: the electronic balance comprises an adjusting base (1), wherein the upper surface of the adjusting base (1) is connected with an electronic balance main body (2) through a protection device, and a calibrator is fixedly connected to the center of the upper surface of the electronic balance main body (2);

the calibrator comprises a calibration shell (3), the lower surface of the calibration shell (3) is fixedly connected with the center of the upper surface of an electronic balance main body (2), the center of the lower surface of the inner wall of the calibration shell (3) is fixedly connected with a micro cylinder (4), the upper end of the micro cylinder (4) is automatically connected with a rotating connector (5), the rotating connector (5) is a deviation pointer (6) fixedly connected with the surface of one side, the upper surface of the calibration shell (3) is fixedly connected with a transparent shell (7), the inner wall of the transparent shell (7) is provided with a bubble cavity (8), and a calibration bead (9) is placed in the inner wall of the bubble cavity (8);

the inner wall of the adjusting base (1) is provided with an installing cavity, four corners of the inner wall of the installing cavity are fixedly connected with bearings (10), the lower surfaces of the bearings (10) are fixedly connected with threaded rods (11), the rod wall surfaces of the upper surfaces of the threaded rods (11) are fixedly connected with worm wheels (12), two symmetrically arranged worms (13) are rotatably connected to two sides of the adjusting base (1), one side surfaces of the worms (13) are respectively meshed with the surfaces of the corresponding worm wheels (12), the lower surfaces of the threaded rods (11) are respectively in threaded connection with threaded sleeves (14), circular openings matched with the threaded sleeves (14) are formed in four corners of the inner wall of the installing cavity, and the threaded sleeves (14) extend to the lower surface of the adjusting base (1) through the corresponding circular openings, the lower surfaces of the plurality of threaded sleeves (14) are fixedly connected with a bottom plate (16).

2. The automatic calibration structure for an electronic balance according to claim 1, wherein: the lower surface of the bottom plates (16) is fixedly connected with anti-skid pads (17), and the anti-skid pads (17) are made of rubber materials.

3. The automatic calibration structure for an electronic balance according to claim 1, wherein: the upper surface of the threaded sleeve (14) is fixedly connected with an anti-falling ring (19), and one end of the worm (13) is fixedly connected with a knob (18).

4. The automatic calibration structure for an electronic balance according to claim 1, wherein: it is a plurality of equal fixedly connected with direction BAR (20) in both sides surface of threaded sleeve (14), it is a plurality of direction opening (21) have all been seted up to circular open-ended both sides, and are a plurality of the surface of direction BAR (20) is corresponding direction opening (21) inner wall sliding connection.

5. The automatic calibration structure for an electronic balance according to claim 1, wherein: the protection device comprises a transparent protection box (22), the lower surface of the transparent protection box (22) is fixedly connected with the upper surface of the adjusting base (1), the center of the lower surface of the inner wall of the transparent protection box (22) is fixedly connected with the lower surface of the adjusting shell (3), one side of the surface of the transparent protection box (22) is rotatably connected with a box door (23) through a hinge, and one side of the surface of the box door (23) is fixedly connected with a handle (24).

6. The automatic calibration structure for an electronic balance according to claim 1, wherein: the lower surface both sides of electronic balance main part (2) all fixedly connected with bracer (25), two article placing tray (26) have been placed jointly to the upper surface of bracer (25).