CN208366437U - A kind of digital display weighing-appliance of farm high security - Google Patents

Abstract

The utility model discloses a kind of digital display weighing-appliances of farm high security, it is related to weighing instrument technical field, including the cabinet with channel, control circuit box above cabinet is set, the weighing unit of the bottom of box is set, and into the pedal and out pedal of cabinet channel both ends connection, control circuit box upper surface are provided with display and key, it is described into pedal and out that the two sides of pedal are provided with Telescopic guardrail；The weighing unit, display and key are connect with control circuit box, weighing sensor is provided in the weighing unit, instrument amplifier, A/D converter and single-chip microcontroller are provided in the control circuit box, it solves the animal weighting manner that existing farm uses to be easy to cause animal injured and cause to weigh inaccuracy because animal tampers on weighting platform, and there are problems that security risk.

Description

A kind of digital display weighing-appliance of farm high security

Technical field

The utility model relates to weighing instrument technical field, in particular to the digital display weighing of a kind of farm high security is set It is standby.

Background technique

As the improvement of people's living standards, the mankind as food chain top, the carnivorous type on dining table is more and more, Carnivorous demand in the market is also increasing, and in face of the market being growing, farm family also faces significant challenge, needs Constantly expand cultivation quantity and cultivation type, it is also contemplated that artificial and equipment cost.

In cultivation farm, the weight of animal is one of most concerned problem of raiser, and whether measure animal can be with One of essential condition of sale, and farm-animals weighing is that a workload is very big, needs the task of a large amount of manpowers, does not have also at present There is the equipment dedicated for farm-animals weighing, so, traditional approach is typically used, animal puts into cage, together with cage It slings and weighs together, after having claimed, rushed in fence by animal, not only to consume a large amount of manpowers and also waste time very much, also Mode be to be weighed using common platform balance, animal is rushed on weighing unit, is lived with fence circle, still, animal can activity, can shadow The accuracy for ringing weighing, if animal pinioned, and can hurt animal, furthermore, because animal faces too many people, it is possible to meeting It is frightened, it runs about, to the people of weighing there is also certain risk, be easy to cause injury to personnel.

Therefore, animal can not be injured by designing one kind, not influenced by animal activity, be weighed accurate and time saving and energy saving high-precision It is very necessary for spending weighing instrument.

Summary of the invention

The purpose of this utility model is that: a kind of digital display weighing-appliance of farm high security is provided, is solved existing The animal weighting manner for having farm to use is easy to cause animal injured and causes to weigh inaccuracy because animal tampers on weighting platform, And there are problems that security risk.

The technical solution adopted in the utility model is as follows:

A kind of digital display weighing-appliance of farm high security is arranged in above cabinet including the cabinet with channel The weighing unit of the bottom of box and into the pedal and out pedal of cabinet channel both ends connection, the control is arranged in control circuit box Circuit box upper surface processed is provided with display and key, and described into pedal and out the two sides of pedal are provided with Telescopic guardrail；

Further, the weighing unit, display and key are connect with control circuit box, and title is provided in the weighing unit Sensor is retransmitted, is provided with instrument amplifier, A/D converter and single-chip microcontroller in the control circuit box.

It further, further include the movable pulley being arranged in below cabinet, the upper cover being connect with control circuit box.

Further, the interior, the material of pedal is mirror face stainless steel plate into pedal and out.

Further, into the pedal and out pedal is provided with locking device at the front end on ground, is controlling with setting Fixation device matching on circuit box processed.

Further, the weighing sensor is resistance strain type sensor, constitutes detection circuit with Wheatstone bridge.

Further, the instrument amplifier uses tri- amplifier structure of OP07, and one end of grid resistance RG1 and A1 connect It connects, is connect after parallel resistance R1 with R3, reconnect Rf and A3, the other end of grid resistance RG1 is connect with A2, after parallel resistance R2 It is connect with R4, reconnects R5 and A3 output.

Further, the A/D converter uses chip HX711, and it is poor that instrument amplifier output is connected to channel analogy Divide input terminal, the port 1 and 16 of the chip HX711 connects to power supply, and port 2 is connect with Q1, and port 3 connects R8 and C3 and is followed by Ground, port 4 connect R9, and port 5 is grounded, and port 6 is grounded after connecting C2, and port 7 connects R6, are connected by C1 parallel connection port 8 R7, port 11 and 12 are connect with single-chip microcontroller.

Further, the single-chip microcontroller uses AT89C51 chip, and with display and by key connection, weighing data is sent It is shown to display.

In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:

1. a kind of digital display weighing-appliance of farm high security, special using resistance strain weighing transducer and electronic scale It is controlled to form high-precision weighing instrument with chip HX711 and single-chip microcontroller, and shows weighing results over the display, be suitble to various The animal of size is weighed, and animal orderly enters weighing unit through channel, do not need to be additionally carried out binding and pursuit, avoid to animal It damages and animal rushes and causes the accident to human body；

2. the utility model further includes the movable pulley being arranged in below cabinet, the upper cover connecting with control circuit box is convenient Mobile device and preservation equipment；

3. the utility model interior, the material of pedal is mirror face stainless steel plate into pedal and out, make animal quilt Oneself attracting in mirror, weighing as can smoothly enter into weighing unit after similar, saving the weighing time, improves weighing effect Rate；

4. the utility model weighing sensor is resistance strain type sensor, detection circuit, energy are constituted with Wheatstone bridge Two kinds of weighing modes of static weighing and Dynamic Weighting are better meet, effectively avoid measuring inaccuracy caused by because of animal activity.

Detailed description of the invention

The utility model will illustrate by example and with reference to the appended drawing, in which:

Fig. 1 is a kind of structural schematic diagram of the digital display weighing-appliance of farm high security；

Fig. 2 is the weighing sensor detection circuit of the utility model；

Fig. 3 is the magnifier of the utility model；

Fig. 4 is the A/D conversion circuit of the utility model；

Fig. 5 is the interface microcontroller circuit of the utility model；

In figure, 1. cabinets, 2. control circuit boxes, 3. displays, 4. keys, 5. into pedal, 6 go out pedal, 7. Telescopic guardrails, 71. locking device, 72. fixed devices, 8. movable pulleys, 9. upper covers, 10. weighing units.

Specific embodiment

All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive Feature and/or step other than, can combine in any way.

It elaborates below with reference to Fig. 1 to Fig. 5 to the utility model.

A kind of digital display weighing-appliance of farm high security is arranged above cabinet 1 including the cabinet 1 with channel Control circuit box 2, be arranged in 1 bottom of cabinet weighing unit 10 and 1 channel both ends of cabinet connection into pedal 5 and go out step on Plate 6,2 upper surface of control circuit box are provided with display 3 and key 4, and described into pedal 5 and out the two sides of pedal 6 are all provided with It is equipped with Telescopic guardrail 7；

Further, the weighing unit 10, display 3 and key 4 are connect with control circuit box 2, in the weighing unit 10 It is provided with weighing sensor, is provided with instrument amplifier, A/D converter and single-chip microcontroller in the control circuit box 2.

It further, further include the movable pulley 8 being arranged in below cabinet 1, the upper cover 9 connecting with control circuit box 2 is convenient Mobile device and preservation equipment.

Further, 1 inner surface of cabinet, the material of pedal 6 is mirror face stainless steel plate into pedal 5 and out, make Animal being weighed as can smoothly enter into weighing unit after similar by oneself attracting in mirror, more being saved the time, will not pay attention to It to the staff of surrounding, avoids frightened, runs about.

Further, into the pedal 5 and out pedal 6 is provided with locking device 71 at the front end on ground, with setting Fixation device 72 on control circuit box 2 matches.

Further, the weighing sensor is resistance strain type sensor, by resistance strain gage, elastomer and detection Several major part compositions such as circuit, the weighing sensor and Wheatstone bridge constitute detection circuit, can better meet quiet State weighs and two kinds of weighing modes of Dynamic Weighting, effectively avoids measuring inaccuracy caused by because of animal activity.

Further, the instrument amplifier uses tri- amplifier structure of OP07, and one end of grid resistance RG1 and A1 connect It connects, is connect after parallel resistance R1 with R3, reconnect Rf and A3, the other end of grid resistance RG1 is connect with A2, after parallel resistance R2 It is connect with R4, reconnects R5 and A3 output.

Further, the A/D converter uses chip HX711, and it is poor that instrument amplifier output is connected to channel analogy Divide input terminal, the port 1 and 16 of the chip HX711 connects to power supply, and port 2 is connect with Q1, and port 3 connects R8 and C3 and is followed by Ground, port 4 connect R9, and port 5 is grounded, and port 6 is grounded after connecting C2, and port 7 connects R6, are connected by C1 parallel connection port 8 R7, port 11 and 12 are connect with single-chip microcontroller.

Further, the single-chip microcontroller uses AT89C51 chip, connect with display 3 and key 4, by weighing data It send to display 3 and shows.

Further, gate can also be set at into pedal 5 and out 6 both ends of pedal, animal is separated one by one, is not easy to make At confusion.

Specific embodiment of the present utility model are as follows:

Weighing instrument is moved at captive animal, will be put down into pedal 5, and the Telescopic guardrail 7 on pedal 5 is pulled up It stretches, is connect with the channel of cabinet 1, pedal 6 keeps lock state out；Due to 1 inner surface of cabinet, into the pedal 5 and out material of pedal 6 Matter is mirror face stainless steel plate, when animal sees the mirror image of oneself, is thought as similar, can draw close automatically, while entering weighing unit On 10, the elastomer of weighing sensor generates flexible deformation under external force, makes the resistance strain gage for being pasted onto his surface In company with being deformed, after resistance strain gage deformation, its resistance value will change, then this resistance variations is turned through measuring circuit It is changed to electric signal, is sent in instrument amplifier circuit and amplifies, then is connected to the channel analogy differential input end of A/D conversion circuit, After finally being handled again by single-chip microcontroller, weighing data is sent to display and is shown；After weighing, pedal 6 out is opened, then again Claim next animal.

The present invention controls shape using resistance strain weighing transducer and electronic scale special chip HX711 and single-chip microcontroller At high-precision weighing instrument, and weighing results being shown over the display, being suitble to the animal weighing of all size, animal is orderly through channel It into weighing unit, does not need to be additionally carried out binding and pursuit, avoids and animal is damaged and animal rushes and causes to human body Accident, the animal weighting manner for solving existing farm use is easy to cause animal injured and because animal tampers on weighting platform and leads It causes to weigh inaccuracy, and there are problems that security risk.

The above, only preferred embodiments of the present invention, but the protection scope of the utility model is not limited to In this, anyone skilled in the art, can be without creative labor in the technical scope disclosed by the utility model The dynamic change or replacement expected, should be covered within the scope of the utility model.Therefore, the protection model of the utility model Enclosing be determined by the scope of protection defined in the claims.

Claims (9)

1. a kind of digital display weighing-appliance of farm high security, including the cabinet (1) with channel, it is characterised in that: also wrap The control circuit box (2) being arranged above cabinet (1) is included, weighing unit (10) and cabinet (1) in cabinet (1) bottom are set The connection of channel both ends pedal (6), control circuit box (2) upper surface are provided with display (3) and press into pedal (5) and out Key (4), described into pedal (5) and out the two sides of pedal (6) are provided with Telescopic guardrail (7).

2. a kind of digital display weighing-appliance of farm high security according to claim 1, it is characterised in that: the weighing Platform (10), display (3) and key (4) are connect with control circuit box (2), are provided with weighing and sensing in the weighing unit (10) Device, the control circuit box (2) is interior to be provided with instrument amplifier, A/D converter and single-chip microcontroller.

3. a kind of digital display weighing-appliance of farm high security according to claim 1 or 2, it is characterised in that: also wrap Include the movable pulley (8) being arranged below cabinet (1), the upper cover (9) connecting with control circuit box (2).

4. a kind of digital display weighing-appliance of farm high security according to claim 1, it is characterised in that: the cabinet (1) inner surface, the material of pedal (6) is mirror face stainless steel plate into pedal (5) and out.

5. a kind of digital display weighing-appliance of farm high security according to claim 1 or 4, it is characterised in that: described Pedal (6) is provided with locking device (71) at the front end on ground into pedal (5) and out, and is arranged in control circuit box (2) On fixation device (72) matching.

6. a kind of digital display weighing-appliance of farm high security according to claim 2, it is characterised in that: the weighing Sensor is resistance strain type sensor, constitutes detection circuit with Wheatstone bridge.

7. a kind of digital display weighing-appliance of farm high security according to claim 2, it is characterised in that: the instrument Amplifier uses tri- amplifier structure of OP07, and one end of grid resistance RG1 connect with A1, connect after parallel resistance R1 with R3, then connect Rf and A3 are met, the other end of grid resistance RG1 is connect with A2, is connect after parallel resistance R2 with R4, and R5 and A3 output is reconnected.

8. a kind of digital display weighing-appliance of farm high security according to claim 2 or 7, it is characterised in that: described A/D converter uses chip HX711, and instrument amplifier output is connected to channel analogy differential input end, the chip HX711's Port 1 and 16 connects to power supply, and port 2 is connect with Q1, and port 3 is grounded after connecting R8 and C3, and port 4 connects R9, and port 5 connects Ground, port 6 are grounded after connecting C2, and port 7 connects R6, the R7 connected by C1 parallel connection port 8, and port 11 and 12 and single-chip microcontroller connect It connects.

9. a kind of digital display weighing-appliance of farm high security according to claim 2, it is characterised in that: the monolithic Machine uses AT89C51 chip, connect with display (3) and key (4), and weighing data is sent to display (3) and is shown.