CN203551079U - Calibration protection mechanism of electronic scale - Google Patents
Calibration protection mechanism of electronic scale Download PDFInfo
- Publication number
- CN203551079U CN203551079U CN201320676780.2U CN201320676780U CN203551079U CN 203551079 U CN203551079 U CN 203551079U CN 201320676780 U CN201320676780 U CN 201320676780U CN 203551079 U CN203551079 U CN 203551079U
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- cover plate
- installation cavity
- lead sealing
- hole
- cavity
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Abstract
The utility model relates to a calibration protection mechanism of an electronic scale. The bottom part of a base is provided with an installation cavity which concaves upwards independently, one side of the installation cavity is provided with a threading hole for a weighing sensor signal line to pass through, a processing printed circuit board with a calibration switch is installed in the installation cavity, a cover plate is installed at an opening of the installation cavity of the base through a fastener and provided with a calibration hole corresponding to the calibration switch, and lead sealing paper or a lead sealing screw is installed on the cover plate and blocks up the calibration hole. According to the utility model, the processing printed circuit board is independently installed in the installation cavity of the base, the cover plate is installed at the opening of the installation cavity of the base through the fastener, lead sealing is carried out on the calibration hole of the cover plate, the structure is reasonable, and maintenance can be carried out on other parts of the scale body without opening the lead sealing.
Description
Technical field
The utility model relates to a kind of calibrating protecting mechanism of electronic scales, belongs to electronic scale technical field.
Background technology
The weighing of electronic scales is to receive load by LOAD CELLS, by elastic body stress deformation, make to stick on the also distortion simultaneously of resistance strain gage on elastic body, cause the variation of resistance strain gage resistance, by metering circuit, weight signal is transformed into corresponding analog electrical signal and exports to signal processing apparatus, signal processing circuit receives signal and carries out analog to digital conversion, then provides control circuit and storage circuit by cable, realizes transmission and the demonstration of data.The variation that changes into component parameter on the treatment circuit of A/D conversion of digital signal at analog electrical signal can cause and the variation of weighing results on the printed circuit board for the treatment of circuit, is also provided with a calibration switch for this reason.But current electronic scales is that treatment circuit and main control circuit are arranged on a circuit printing plate, for avoiding user to modify to the components and parts on treatment circuit, to cover on cover plate on circuit board by lead sealing means, forbid the cover plate on user's unlocking electronic scale, only on lid, leave the demarcation hole that calibration switch is operated, for the inaccurate electronic scales of metering, by removing lead sealing, with instrument, pass the demarcation hole on cover plate and press calibration switch and again demarcate object to reach.But in order to guarantee the seriousness of metering, this calibration process need to be carried out in metrological service.Current lead sealing is carried out whole lead sealing for scale body upper and lower covers mostly, but this lead seal structure also brings a problem simultaneously, when needs keep in repair scale body inside, just must open lead sealing, and after maintenance, Xu Jing metrological service confirms lead sealing again again.But the maintenance of electronic scales is many, be not the maintenance for treatment circuit, therefore can cause unnecessary work increase, again meterage with and waste of time.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, does not open under lead sealing prerequisite, can be to the electronic scales calibrating protecting mechanism overhauling with the irrelevant other parts of metering in scale body.
The utility model is that the technical scheme achieving the above object is: a kind of calibrating protecting mechanism of electronic scales; it is characterized in that: in base bottom, be provided with the independent upwards installation cavity of indent; the side that cavity is installed is provided with the through wires hole passing for load cell signal line; the treatment circuit printed board with calibration switch is arranged on installs in cavity; cover plate is arranged on the installation cavity opening part of pedestal by securing member; cover plate is provided with the demarcation hole corresponding with calibration switch, and lead sealing paper or lead sealing screw are installed on the cover board and got lodged in and demarcate hole.
The utility model is provided with the upwards installation cavity of indent in the bottom of pedestal, the treatment circuit printed board with calibration switch is arranged on and is installed in cavity, when cover plate is arranged on the installation cavity opening part of pedestal by securing member, can shelter from treatment circuit printed board, therefore the treatment circuit that load cell signal is processed is separated with control circuit, the treatment circuit printed board that is provided with calibration switch is arranged separately, the utility model cover plate is provided with demarcates hole, by lead sealing paper or lead sealing screw, block this demarcation hole, control circuit due to other parts, power circuit is not all in this installs cavity, therefore do not opening under lead sealing prerequisite, opening bottom plate or upper cover just can detect the parts in electronic scales, maintenance or replacing, and can not affect treatment circuit, maintenance to electronic scales has brought convenience, reduced that unnecessary work increases and again meterage use.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation of the calibrating protecting mechanism of the utility model electronic scales.
Fig. 2 is that the A of Fig. 1 is to structural representation.
Fig. 3 is the structural representation of dismounting lead sealing cover plate of the calibrating protecting mechanism of the utility model electronic scales.
Fig. 4 is the structural representation that the utility model pedestal is installed cavity.
Fig. 5 is the structural representation of the utility model lead sealing cover plate.
Wherein: 1-pedestal, 1-1-installation cavity, 1-2-through wires hole, 1-3-support column, 1-4-supporting station, 1-5-supporting base, 2-cover plate, 2-1-demarcation hole, 2-2-mounting hole, 3-securing member, 4-leg, 5-bracket, 6-LOAD CELLS, the printed board of 7-treatment circuit, 7-1-calibration switch.
Embodiment
See shown in Fig. 1～3, the calibrating protecting mechanism of the utility model electronic scales, at pedestal 1 back, be provided with the independent upwards installation cavity 1-1 of indent, adjustable support leg 4 is installed at four jiaos of places of pedestal 1, the side that cavity 1-1 is installed is provided with the through wires hole 1-2 passing for load cell signal line, LOAD CELLS 6 is arranged between pedestal 1 and bracket 5, by bracket 5 by the weight transmitting of object to LOAD CELLS 6, LOAD CELLS 6 receives load, weight signal is transformed into corresponding electric signal, and be electrically connected to treatment circuit printed board through through wires hole 1-2 by load cell signal line, treatment circuit carries out A/D conversion, to collect analog electrical signal and transfer digital signal to, by data-signal, provide control circuit again, by control circuit, realize demonstration and the transmission of data, the treatment circuit printed board 7 with calibration switch 7-1 is arranged on installs in cavity 1-1.
As shown in Figure 4, the utility model is installed at least one place, diagonal angle of cavity 1-1 and is provided with for supporting the supporting station 1-4 for the treatment of circuit printed board 7, supporting station 1-4 is provided with screw, treatment circuit printed board 7 is placed on supporting station 1-4 above and is arranged on supporting station 1-4 by securing member, cover plate 2 is arranged on the installation cavity 1-1 opening part of pedestal 1 by securing member 3, installation cavity 1-1 mono-upper lateral part of the utility model pedestal 1 is also provided with supporting base 1-5, opposite side is provided with support column 1-3, on supporting base 1-5 and support column 1-3, there is respectively threaded hole, cover plate 2 is arranged on to be installed cavity 1-1 place and is supported by supporting base 1-5 and support column 1-3, securing member 3 passes respectively the mounting hole 2-2 of cover plate 2 and is screwed in threaded hole separately.
See shown in Fig. 1,3,4 and 5, the utility model cover plate 2 is provided with the demarcation hole 2-1 corresponding with calibration switch 7-1, and lead sealing paper or lead sealing screw are arranged on cover plate 2 and get lodged in and demarcate hole 2-1.When needing timing signal, remove lead sealing paper or the lead sealing screw at the 2-1 place, demarcation hole of cover plate 2, with instrument, put in and demarcate hole 2-1, calibration switch 7-1 in treatment circuit printed board 7 is operated, after demarcation, by metrological service, the demarcation hole 2-1 on cover plate 2 is carried out to lead sealing, and when electronic scales is keeped in repair, only need open other cover plate case etc., electronic scales is keeped in repair.
Claims (3)
1. the calibrating protecting mechanism of an electronic scales, it is characterized in that: in pedestal (1) bottom, be provided with the independent upwards installation cavity (1-1) of indent, the side that cavity (1-1) is installed is provided with the through wires hole (1-2) passing for load cell signal line, the treatment circuit printed board (7) with calibration switch is arranged on installs in cavity (1-1), cover plate (2) is arranged on installation cavity (1-1) opening part of pedestal (1) by securing member (3), cover plate (2) is provided with the demarcation hole (2-1) corresponding with calibration switch, and lead sealing paper or lead sealing screw are arranged on cover plate (2) and go up and get lodged in demarcation hole (2-1).
2. the calibrating protecting mechanism of electronic scales according to claim 1; it is characterized in that: described at least one place, diagonal angle of installation cavity (1-1) is provided with the supporting station (1-4) for supporting treatment circuit printed board (7); supporting station (1-4) is provided with screw, and treatment circuit printed board (7) is placed on supporting station (1-4) above and is arranged on supporting station (1-4) by securing member.
3. the calibrating protecting mechanism of electronic scales according to claim 1; it is characterized in that: a side of described installation cavity (1-1) is also provided with supporting base (1-5); opposite side is provided with support column (1-3); on supporting base (1-5) and support column (1-3), there is respectively threaded hole; cover plate (2) is arranged on installs that cavity (1-1) is located and by supporting base (1-5) and support column (1-3) supporting, the mounting hole (2-2) that securing member (3) passes respectively cover plate (2) is screwed in threaded hole separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676780.2U CN203551079U (en) | 2013-10-29 | 2013-10-29 | Calibration protection mechanism of electronic scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676780.2U CN203551079U (en) | 2013-10-29 | 2013-10-29 | Calibration protection mechanism of electronic scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551079U true CN203551079U (en) | 2014-04-16 |
Family
ID=50469177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320676780.2U Expired - Fee Related CN203551079U (en) | 2013-10-29 | 2013-10-29 | Calibration protection mechanism of electronic scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203551079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534872A (en) * | 2017-03-02 | 2018-09-14 | 碧彩股份两合公司 | Load sensor for scale |
| CN113465718A (en) * | 2021-09-03 | 2021-10-01 | 江苏卓铭电子科技有限公司 | Calibration protection mechanism of electronic scale and electronic scale |
-
2013
- 2013-10-29 CN CN201320676780.2U patent/CN203551079U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534872A (en) * | 2017-03-02 | 2018-09-14 | 碧彩股份两合公司 | Load sensor for scale |
| US10830633B2 (en) | 2017-03-02 | 2020-11-10 | Bizerba SE & Co. KG | Load cell for a scale with a switching device for changing the state of calibration data write protection |
| CN113465718A (en) * | 2021-09-03 | 2021-10-01 | 江苏卓铭电子科技有限公司 | Calibration protection mechanism of electronic scale and electronic scale |
| CN113465718B (en) * | 2021-09-03 | 2021-11-02 | 江苏卓铭电子科技有限公司 | Calibration protection mechanism of electronic scale and electronic scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20211029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |