阅读说明：本技术 一种防作弊称重传感器 (Anti-cheating weighing sensor ) 是由 吴科杰 于 2019-10-25 设计创作，主要内容包括：本发明涉及一种防作弊称重传感器,包括弹性体、应变片和导线,所述弹性体内安装有应变片,外延在弹性体左侧的所述导线贯穿弹性体与所述应变片相连接,所述弹性体内还安装有光感传感器,所述光感传感器分别与应变片和导线相连；本发明通过在弹性体内安装光感传感器,且光感传感器分别与应变片和外延导线相连,当作弊者打开弹性体对应变片进行改装或加装遥控装置时,光感传感器一见光立刻开始工作将光信号转换成电信号向应变片输出致使应变片和整个称重传感器启动自毁程序停止工作,计量称重系统也随之自行锁机,这样完全杜绝了作弊的机会,其结构和原理简单生产成本低,防作弊性能明显。(The invention relates to an anti-cheating weighing sensor which comprises an elastic body, a strain gauge and a lead, wherein the strain gauge is installed in the elastic body, the lead extending out of the left side of the elastic body penetrates through the elastic body to be connected with the strain gauge, a light sensing sensor is also installed in the elastic body, and the light sensing sensor is respectively connected with the strain gauge and the lead; according to the invention, the light-sensitive sensor is arranged in the elastic body and is respectively connected with the strain gauge and the epitaxial lead, when a cheater opens the elastic body to modify the strain gauge or add a remote control device, the light-sensitive sensor immediately starts working after light is emitted, converts an optical signal into an electrical signal and outputs the electrical signal to the strain gauge, so that the strain gauge and the whole weighing sensor start a self-destruction program to stop working, and the metering and weighing system automatically locks the machine accordingly, thus completely avoiding the cheating opportunity, and the metering and weighing system has simple structure and principle, low production cost and obvious cheating prevention performance.)

1. An anti-cheating weighing sensor, characterized in that: including elastomer (2), foil gage (3) and wire (5), install foil gage (3) in elastomer (2), it is epitaxial on elastomer (2) left wire (5) run through elastomer (2) with foil gage (3) are connected, still install light sense sensor (4) in elastomer (2), light sense sensor (4) link to each other with foil gage (3) and wire (5) respectively.

2. The anti-cheating weighing sensor of claim 1, wherein: be equipped with strain hole (201) in elastomer (2), install respectively in strain hole (201) foil gage (3) with light sense sensor (4).

3. The anti-cheating weighing sensor of claim 2, wherein: and a sealing cover (6) is arranged on the outer cover of the strain hole (201).

4. The anti-cheating weighing sensor of claim 3, wherein: strain hole (201) are seted up at the middle part of elastomer (2), and the quantity in strain hole (201) is 2 looks symmetries and sets up, bolt (9) fixedly connected with base (1) are passed through to the bottom of elastomer (2), and the quantity of bolt (9) is about 2 each 1 symmetrical arrangement, and is equipped with stress groove (101) between elastomer (2) and base (1).

5. The anti-cheating weighing sensor of claim 4, wherein: and a protective cover (8) is arranged on the top of the elastic body (2).

6. The anti-cheating weighing sensor of claim 5, wherein: sealing strips (7) are sealed at the front opening and the rear opening of the stress groove (101).

7. The anti-cheating weighing sensor of claim 6, wherein: the bottom fixedly connected with mounting bracket (10) of base (1), four mounting holes (11) have been seted up in proper order to open the four corners of mounting bracket (10).

8. The anti-cheating weighing sensor of claim 7, wherein: the elastic body (2) is an elastic main body (12) and is of an integrated structure, a strain hole (201) and a stress groove (101) are respectively arranged in the elastic main body (12), and a light sensor (4) is arranged in the strain hole (201); the bottom of the elastic main body (12) is fixedly connected with a mounting rack (10); the top of the elastic main body (12) is also provided with a groove (120).

9. The anti-cheating weighing sensor of claim 8, wherein: the protective cover (8) is a n-shaped protective cover (13) which is of a n-shaped structure, the protective cover is arranged at the top of the elastic main body (12) and fixed through a bolt (9), and a limiting hole (131) is formed in the n-shaped protective cover (13) to limit the force transmission body; and a protection pad (132) is embedded in the limiting hole (131).

Technical Field

The invention relates to the technical field of weighing sensors, in particular to an anti-cheating weighing sensor.

Background

The weighing sensor is a device which converts a mass signal into a measurable electric signal and outputs the measurable electric signal; the existing weighing sensor devices all have the defects that cheating cannot be prevented, remote control cannot be stopped from the source, cheating devices are additionally arranged to change cheating means of weighing data, and serious economic losses are caused to the country and individuals. Chinese utility model patent with publication number CN 209055193U opened an anti-cheating strain gauge sensor in 2019, 7, 2, including elastomer, strain gauge, processing circuit board, output cable, its characterized in that: the strain gauge comprises a first group of strain gauges and a second group of strain gauges, the processing circuit board comprises a first group of processing circuit boards and a second group of processing circuit boards, and the output cables comprise a first group of output cables and a second group of output cables; the first group of strain gauges and the second group of strain gauges are respectively arranged in the elastic body, the output ends of the first group of strain gauges are connected with the input ends of the first group of processing circuit boards, the output ends of the first group of processing circuit boards are connected with the first group of output cables, and the first group of output cables are connected with the first group of display instruments; the output end of the second group of strain gauges is connected with the input end of the second group of processing circuit boards, the output end of the second group of processing circuit boards is connected with the second group of output cables, and the second group of output cables is connected with the second group of display instruments. The anti-cheating strain gauge sensor is characterized in that another set of strain gauges is added on a sensor elastic body, so that the sensor generates two paths of outputs with the same signal, and the two paths of outputs are connected with two same display instruments. Because the sensor and two display instruments with two outputs are used, a cheater adds two remote control devices on two groups of strain gauges even if the output signals of the strain gauges are very weak, zero points of the two strain gauges are different, resistances are different, the two remote control signals cannot be the same, so that the output displays of the instruments are different, and a weigher can find out problems, stop weighing and achieve the purposes of cheating prevention and remote control prevention.

However, the anti-cheating strain gauge sensor described above needs to stop weighing by manually finding the problem of the meter output display by means of inconsistency of two sets of output remote control signals, and cannot completely prevent weighing cheating; a cheater can still refit the symmetrical strain gauge, and the cheating purpose can be achieved only by refitting the two groups of strain gauges at the same time to change the output frequency of the strain gauges and installing two groups of inconsistent remote control devices to enable the two groups of output signals to be consistent. In addition, two groups of strain gauges are arranged simultaneously to avoid cheating, so that the production cost is increased due to the fact that the internal structure of the elastic body of the sensor needs to be changed, and the workload of a weigher is increased when weighing is carried out.

Disclosure of Invention

The invention aims to solve the technical problem that a weighing sensor cannot prevent cheating, and provides an anti-cheating weighing sensor which prevents cheaters from cheating, and is simple in structure and low in production cost.

The technical scheme adopted by the invention for solving the problems is as follows: an anti-cheating weighing sensor comprises an elastic body, a strain gauge and a lead, wherein the strain gauge is installed in the elastic body, the lead extending out of the left side of the elastic body penetrates through the elastic body to be connected with the strain gauge, a light sensor is further installed in the elastic body, and the light sensor is respectively connected with the strain gauge and the lead; the anti-cheating weighing sensor is characterized in that a light sensor is arranged in an elastic body and is respectively connected with a strain gauge and an extension lead, when an cheater opens the elastic body to modify the strain gauge or additionally install a remote control device, the light sensor immediately starts working by light to convert light signals into electric signals and output the electric signals to the strain gauge, so that the strain gauge and the whole weighing sensor start a self-destruction program to stop working, a metering weighing system automatically locks the machine along with the self-destruction program, and meanwhile, the extension lead activates a connected intelligent security system to alarm and call for help; thus completely eradicating the opportunity of cheating, and the structure and the principle are simple, the production cost is low, and the anti-cheating performance is obvious.

Preferably, the elastic body is provided with strain holes, and the strain gauge and the light sensor are respectively installed in the strain holes.

Preferably, the strain hole outer cover is provided with a sealing cover for sealing the light sensor, so that when a cheater wants to refit or install a remote control device by opening the strain sheet in the strain hole corresponding to the sealing cover, the light sensor connected with the strain sheet and installed in the strain hole automatically starts to work as soon as the cheater sees light.

Preferably, the strain holes are formed in the middle of the elastic body, the strain holes are arranged in 2 symmetry, the bottom of the elastic body is fixedly connected with the base through bolts, the bolts are arranged in 1 symmetrical mode on the left side and the right side of the elastic body respectively, and the stress grooves are formed between the elastic body and the base.

Preferably, a protective cover is arranged on the top of the elastic body to prevent the elastic body from being damaged and deformed due to the fact that the force transmission body directly contacts the elastic body when weighing.

Preferably, sealing strips are sealed at the front opening and the rear opening of the stress groove, so that the weighing precision is prevented from being influenced by the entering of impurities and dust.

Preferably, the bottom of base fixedly connected with mounting bracket, four mounting holes have been seted up in proper order to the four corners division of mounting bracket.

Preferably, the elastic body is an elastic main body and is of an integrated structure, a strain hole and a stress groove are respectively formed in the elastic main body, and a light sensor is installed in the strain hole; the bottom of the elastic main body is fixedly connected with a mounting frame; the top of the elastic main body is also provided with a groove.

Preferably, the protective cover is a n-shaped protective cover which is of a n-shaped structure, the protective cover is mounted at the top of the elastic main body and fixed through a bolt, and a limiting hole is formed in the n-shaped protective cover to limit the force transmission body; and a protection pad is embedded in the limiting hole.

Compared with the prior art, the invention has the advantages that due to the adoption of the technical scheme, the invention has the following advantages: the optical sensor is arranged in the strain hole, so that cheating behaviors of opening the dust sealing cover by a cheater and entering the strain hole for adding or modifying are completely avoided, and the cheating prevention effect is achieved in hundred percent; meanwhile, cheating can be avoided only by installing the light sensor in the strain hole, and the strain hole is simple in structure, low in production cost and good in effect.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a schematic perspective view of a second embodiment of the present invention;

FIG. 3 is a second schematic perspective view of a second embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a schematic perspective view of a third embodiment of the present invention;

FIG. 6 is a schematic perspective view of a second embodiment of the present invention;

shown in the figure: 1. the novel sensor comprises a base, 101 stress grooves, 2 elastic bodies, 201 strain holes, 3 strain gauges, 4 light-sensitive sensors, 5 conducting wires, 6 sealing covers, 7 sealing strips, 8 protective covers, 9 bolts, 10 mounting frames, 11 mounting holes, 12 elastic bodies, 120 grooves, 13 protective covers in a shape like a Chinese character 'ji', 131 limiting holes and 132 protective pads.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.