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Intelligent dual-step weighing sensor

A kind of weighing sensor, intelligent technology, applied in the detailed information of weighing equipment, instruments, weighing and other directions, can solve the problems of use, large error, and can not be used as a weight scale.

Inactive Publication Date: 2016-09-14
申俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The weight electronic scales currently on the market are mainly composed of a loading board, a display screen, an adjustment button, a power module and a load cell for supporting the loading board. When the weight of the loaded object exceeds the preset value, the display screen will start to display the value. The preset value is generally 5 kg; in addition, the maximum range of this kind of weight electronic scale is generally 180 kg, and the accuracy value is only 100 grams. The error is large. Therefore, this traditional weight electronic scale can basically not be used for other purposes except for weighing, especially it cannot be used as a kitchen electronic scale.
However, the existing kitchen electronic scales have an accuracy of 1 gram or even less, but their range generally does not exceed 10 kilograms, so they cannot be used as weighing scales.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment is an intelligent two-stage load cell, see Figure 1 to Figure 6 As shown, it includes the first mounting seat 1, the first precision load cell 2, the first support foot 3, the elastic support 4, the second mounting seat 5, the second precision load cell 6 and the second Support feet7.

[0026] On the bottom wall of the first mounting seat, there is provided with an annular force-guiding crimping portion 11 and a first card seat 12 located at the center of the force-guiding crimping portion; in this embodiment, the bottom of the force-guiding crimping portion 11 The wall is an annular plane, and the top wall of the first installation seat also has a plane, which is used for bonding and fixing on the bottom wall of the external carrier board.

[0027] The first precision load cell is provided with a first fixed portion 21, a first force-bearing deformation portion 22, and a first resistance strain gauge 23 arranged on the first force-bearing deformation ...

Embodiment 2

[0053] This embodiment is basically the same as Embodiment 1, the difference is: see Figure 7 to Figure 10As shown, in this embodiment, the structural shape of the second precision load cell, the second support leg and the cover is different from that of Embodiment 2, and the second precision load cell in this embodiment is still provided with a second fixed part 61, the second force-bearing deformation part 62, and the second resistance strain gauge 63 arranged on the second force-bearing deformation part for detecting the deformation amount of the second force-bearing deformation part; but the second precision in this embodiment The shape of the load cell is similar to the reverse "G" shape, its second fixed part is similar to "C" shape, and the shape of the second force-bearing deformation part is similar to a smaller "C" shape, and it is connected with the second fixed part , combined to form a reverse "G" shape. The measuring range and precision of this second precision...

Embodiment 3

[0058] This embodiment is basically the same as Embodiment 1, the difference is: see Figure 11 to Figure 14 As shown, in this embodiment, the static contact 91 and the moving contact 92 are no longer provided, and the upper part of the outer peripheral wall of the first support leg is no longer provided with the annular crimping part 32, and the lower part is no longer used as the sliding column part 33.

[0059] In this embodiment, an adjustment hole 35 is provided at the center of the first supporting leg, and a circular connecting column 59 protruding upward from the mounting plate is also provided at the center of the tubular boss 53 of the mounting plate. There is a connecting screw hole 591 at the center of the top wall of the pillar; the tubular boss and the circular connecting pillar form an annular limiting groove 592; the bottom end of the spring is located in the annular limiting groove and abuts against the mounting plate On the part, the top end of the spring abu...

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Abstract

The invention discloses an intelligent dual-step weighing sensor comprising a first mounting seat, a first precision weighing sensor, a first supporting leg, an elastic supporting element, a second mounting seat, a second precision weighing sensor and a second supporting leg. The above-mentioned units are successively arranged in a pressing mode. A guiding and pressing part is arranged at the first mounting seat; and the second mounting seat is provided with a mounting plate part and a guiding and supporting part for transmitting the received pressure to the mounting plate part. A static contact is arranged at the top end of the guiding and supporting part; and the guiding and pressing part of the first mounting seat is provided with a moving contact matching the static contact. In a free state, the guiding and pressing part is higher than the guiding and supporting part. When the force is applied on the first mounting seat, the elastic supporting element is pressed and then the first mounting seat moves down; and when the force exerted on the first mounting seat reaches a preset degree, the guiding and pressing part of the first mounting seat moves down and presses the guiding and supporting part, and thus the moving contact is arranged on the static contact in a pressing mode. The dual-step weighing sensor has the continuous dual-step ranges and has different precision values in ranges at all steps.

Description

technical field [0001] The invention belongs to the technical field of load cell structure design, and in particular relates to an intelligent double-stage load cell. Background technique [0002] The weight electronic scales currently on the market are mainly composed of a loading board, a display screen, an adjustment button, a power module and a load cell for supporting the loading board. When the weight of the loaded object exceeds the preset value, the display screen will start to display the value. The preset value is generally 5 kg; in addition, the maximum range of this kind of weight electronic scale is generally 180 kg, and the accuracy value is only 100 grams. The error is large. Therefore, this traditional weight electronic scale can not be used for other purposes except weighing the body on weekdays, especially it cannot be used as a kitchen electronic scale. And existing kitchen electronic scale, its precision value can reach 1 gram even smaller, but its measu...

Claims

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Application Information

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IPC IPC(8): G01G19/44G01G19/00G01G21/23
CPCG01G19/00G01G19/44G01G21/23
Inventor 申俊
Owner 申俊
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