CN104932578B - Silo inner ring stream controller - Google Patents

Silo inner ring stream controller Download PDF

Info

Publication number
CN104932578B
CN104932578B CN201510364482.3A CN201510364482A CN104932578B CN 104932578 B CN104932578 B CN 104932578B CN 201510364482 A CN201510364482 A CN 201510364482A CN 104932578 B CN104932578 B CN 104932578B
Authority
CN
China
Prior art keywords
main frame
inner ring
embedded control
grain
chamber door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510364482.3A
Other languages
Chinese (zh)
Other versions
CN104932578A (en
Inventor
祁波
周厚生
周大伟
朱鹏英
杨纪富
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING GOLDENBELL INFORMATION TECHNOLOGY Co Ltd
Shandong Jinzhong Science And Technology Group Ltd By Share Ltd
Original Assignee
BEIJING GOLDENBELL INFORMATION TECHNOLOGY Co Ltd
Shandong Jinzhong Science And Technology Group Ltd By Share Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BEIJING GOLDENBELL INFORMATION TECHNOLOGY Co Ltd, Shandong Jinzhong Science And Technology Group Ltd By Share Ltd filed Critical BEIJING GOLDENBELL INFORMATION TECHNOLOGY Co Ltd
Priority to CN201510364482.3A priority Critical patent/CN104932578B/en
Publication of CN104932578A publication Critical patent/CN104932578A/en
Application granted granted Critical
Publication of CN104932578B publication Critical patent/CN104932578B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Catching Or Destruction (AREA)
  • Storage Of Harvested Produce (AREA)

Abstract

The invention discloses silo inner ring stream controller; including casing, chamber door, air switch, electric machine controller module, embedded Control main frame, wireless data transmission module, Switching Power Supply, power source surge protector, A.C. contactor, relay and external wiring terminal are provided with casing;Motor control module connects air switch, and motor control module contact relay, relay is connected with the power supply of motor, and relay is connected with embedded Control main frame;Power source surge protector is connected with incoming power part;Wireless data transmission module is connected by serial ports with embedded Control main frame, embedded Control main frame is connected with host computer, storehouse temperature sensor is connected with embedded Control main frame, embedded Control main frame is connected with host computer, host computer is connected with grain inspection system, grain inspection system is connected with grain heap sensor, and LCDs, manual and automatic button, circulation and stifling button are connected with embedded Control main frame.Realize recirculation fumigation using the present invention, efficiency high, cost it is low compared with.

Description

Silo inner ring stream controller
Technical field
The present invention relates to grain face temperature testing equipment technical field, more particularly to a kind of silo inner ring stream controller, realize Grain temperature is controlled to adjust, while using interior circulating line and blower fan, by phosphine gas by negative pressure from grain face into grain heap Portion is circulated, and realizes the interior recirculation fumigation in storehouse.
Background technology
Grain is lived live body, and it produces again unique with consumption, and how safe storage turns into the world to grain Property problem, and develop grain storage technology and have important practical significance.Intelligent control technology is had started in China's grain Used in storage, so as to greatly improve the complex art platform and automatic management level of grain storage, reduce grain mould Become and pest injurious loss.In the food storage of prior art, the equipment used in terms of silo temperature control of divulging information mainly uses axle stream Blower fan cooling, air-conditioning temperature-reducing, paddy cold cooling etc. mode, the defect existed is that control accuracy is poor, exist ventilation time length, The drawback such as power consumption is big, grain moisture content loss is serious, lack in the prior art can realize automatically control, the grain temperature control of energy-conserving and environment-protective Control equipment.
The content of the invention
For solving the above-mentioned problems of the prior art, it is an object of the present invention to provide a kind of silo inner ring flow control Device;The present invention can automatic detection grain face temperature, according to setting value open circulation fan enter firm position inner ring stream, do not losing moisture In the case of make the grain temperature drop of grain heap surface and surrounding low, it is ensured that grain is in one compared with low ambient temperature, with efficiently, section Energy, the advantage of environmental protection, realize safety, green, the purpose of detraction grain storage.
The present invention solve technical problem technical scheme be:
A kind of silo inner ring stream controller, including inner ring flow control case, inner ring flow control case is connected with external power source, described Inner ring flow control case includes casing, the chamber door being connected, it is characterized in that, electric wiring disk is provided with the casing, it is described electric Wire plate is provided with air switch, electric machine controller module, embedded Control main frame, wireless data transmission module, Switching Power Supply, power supply Surge Protector, motor control module are A.C. contactor, relay and external wiring terminal;External power source, circulation fan Power control line, collection signal wire, the power line of Switching Power Supply of storehouse temperature sensor are linked into the corresponding of external wiring terminal On terminal;Motor controlling module input end connects the output end of air switch, A.C. contactor input termination electric machine controller module Output end, the power interface of output termination motor, relay is connected with A.C. contactor and controlled by embedded Control main frame System;Power source surge protector is connected with incoming power part;The wireless data transmission module one of inner ring flow control case passes through serial ports and case Internal embedded Control main frame connection, wireless data transmission module one is connected by wireless data transmission module two with host computer, embedded Control main frame sends the signal to host computer by wireless antenna, and storehouse temperature sensor passes through data acquisition line and inner ring flow control case Interior embedded Control main frame connection, embedded Control main frame is connected with host computer, and host computer is connected with grain inspection system, grain Feelings detecting system is connected with grain heap sensor, and chamber door is provided with LCDs, manually and automatic button, circulation and stifling press Button, LCDs, manual and automatic button, circulation and stifling button are connected with embedded Control main frame respectively.
The chamber door includes outer chamber door, interior chamber door, and outer chamber door is equipped with case lock, outer chamber door, interior chamber door difference with interior chamber door It is hinged by loose-leaf with casing side, LCDs, manual and automatic button, circulation and stifling button are on interior chamber door.
The casing is being provided with upper boss, lower boss close to bulkhead side, in upper boss, lower boss provided with peace Hole is filled, control cabinet with the setscrew that mounting hole coordinates by being fixed on metope.
The bottom edge sealing plate of the casing is provided with strip heat emission hole, it is ensured that good heat radiating and effectively prevent outdoor in rack Rainwater penetrates into.
Casing, the chamber door of the inner ring flow control case are made using stainless steel.
When the circulation in casing and stifling button rotation are to inner ring stream mode position, controller is in interior circulation Working mould Formula, embedded Control main frame detects temperature in storehouse in real time, when temperature reaches higher limit, embedded Control host computer control motor fortune Turn;When temperature drops to lower limit, embedded Control host computer control motor is stopped;Embedded Control host record temperature conditions And run time, the data such as temperature information and motor action time are uploaded to by host computer, host computer by wireless data transmission module Display, real-time monitoring site running situation in real time are received after signal, host computer is connected with grain inspection system, grain inspection system It is connected with grain heap sensor, grain heap sensor collection grain heap temperature is entered by temperature data to drafting efficiency and situations such as power consumption Row comprehensive analysis;When circulation and stifling button rotation are to recirculation fumigation position, controller is in recirculation fumigation pattern, in grain face Upper release aluminum phosphide tablet, using air natural deliquescence, now motor reversal, the wind speed and pressure of interior circulating line is reduced, empty Gas is internally formed negative pressure when being extracted into grain face from air channel, by phosphine gas by negative pressure from grain face to grain heap inner loop, realizes Recirculation fumigation inside silo.
Beneficial effects of the present invention:
1. the present invention can automatic detection grain face temperature, according to setting value open circulation fan enter firm position inner ring stream, it is ensured that Grain is in one, and compared with low ambient temperature, blower fan improves drafting efficiency according to grain face temperature automatic control, saves a large amount of Electric energy and human cost;Data can carry out System collection, and the synthesis grain feelings of silo are grasped in real time;Grain is realized with control The interior circulation in storehouse and recirculation fumigation function, reduce manufacture cost of investment, have the advantages that efficient, energy-saving and environmental protection.
2. the stainless steel that inner ring flow control case is used makes, using layer door structure, outer chamber door, interior chamber door pass through work respectively Page is hinged with casing side, with good dust-proof, rainproof effect, is effectively protected LCD MODULE and is reduced or remitted controlling switch Unexpected touching and safeguard protection, outer chamber door are equipped with case lock with interior chamber door, prevent personnel's maloperation, improve device security.
3. the bottom edge sealing plate of casing is provided with strip heat emission hole, it is ensured that good heat radiating and effectively prevent outdoor rain in rack Water penetrates into.
Brief description of the drawings
Fig. 1 detracts grain storage system electrical schematic diagram for the interior circulation temperature control of the present invention;
Fig. 2 is inner ring flow control case shape assumption diagram;
Fig. 3 is that inner ring flow control case opens the structural representation of outer container behind the door;
Fig. 4 is the structural representation after chamber door in inner ring flow control case is opened;
Fig. 5 is component locations structure chart in inner ring flow control case.
Embodiment
For a better understanding of the present invention, embodiments of the present invention are explained in detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 5, a kind of silo inner ring stream controller, including inner ring flow control case, the inner ring flow control case Including casing, electric wiring disk 27 is provided with the casing, electric wiring disk is bolted on box house, described electric Wire plate 27 provided with air switch 28, electric machine controller module 29, embedded Control main frame 30, wireless data transmission module 1, Switching Power Supply 32, power source surge protector 33, motor control module are A.C. contactor 34, relay and external wiring terminal 35.External power source case power line, the power control line of circulation fan, the collection signal wire of storehouse temperature sensor, Switching Power Supply 32 Power line is linked into the respective terminal of external wiring terminal 35;Air switch 28 is the power supply of inner ring flow control case Device, controls the break-make of power supply, with creepage protection function;The input of electric machine controller module 29 and the output of air switch 28 End connection, output end connection A.C. contactor 34;The output end of the input of A.C. contactor 34 connection electric machine controller module 29, The power interface of output termination motor, relay is connected with A.C. contactor 34 and by the control of embedded Control main frame 30;Electricity Source Surge Protector 33 is connected with incoming power part, prevent thunderbolt or high current by when damage to equipment;Interior circulation The wireless data transmission module 1 of control cabinet is connected by serial ports with the embedded Control main frame 30 in casing, wireless data transmission module one 31 are connected by wireless data transmission module 2 44 with host computer 37, and embedded Control main frame 30 is sent the signal to by wireless antenna Host computer 37 is analyzed.
The casing of the inner ring flow control case is made using thickness 2mm 304 stainless steels, using outer chamber door 24, interior chamber door 22 layer door structure, with good dust-proof, rainproof effect.The casing of control cabinet 4 close to bulkhead side provided with upper boss, Lower boss, mounting hole 18 is provided with upper boss, lower boss, and control cabinet 4 passes through the setscrew that coordinates with mounting hole 18 Be fixed on metope, company LOGO and name of product corroded in the front panel of outer chamber door, product nameplate 21 is installed in side, outer chamber door with Interior chamber door is equipped with case lock 20, prevents personnel's maloperation, the outer chamber door 24, interior chamber door 22 pass through loose-leaf 19 and casing one respectively Side is hinged;Interior chamber door sets LCDs 23, manual and automatic button 26, circulation and stifling button 25, LCDs 23 Show Current Temperatures, the information of running status and parameter setting, LCDs 23, manually and automatic button 26, circulation and Stifling button 25 is connected with controller respectively.
During interior circulation mode of operation, the circulation of control cabinet 4 and stifling button 25 rotate to inner ring stream mode position, embedded Temperature in the automatic data collection storehouse of control main frame 30, when temperature reaches higher limit, system automatically controls blower fan action, when temperature in storehouse During less than design temperature, system is automatically stopped blower fan action, and status data is sent to host computer 37.During recirculation fumigation pattern, control The circulation and stifling knob 25 of case 4 processed go to stifling state position, and now blower fan is reversely rotated, and wind speed and air quantity reduce, in grain Aluminum phosphide tablet is discharged on face, using air natural deliquescence, starts stifling circulation, by phosphine gas by negative pressure from grain face to Grain heap inner loop, realizes the recirculation fumigation inside silo, and circulation time performs according to default value.
The bottom edge sealing plate of the casing is provided with strip heat emission hole 41, it is ensured that good heat radiating and effectively prevent room in rack Outer rainwater penetrates into.
Storehouse temperature sensor 12 is connected by data acquisition line with embedded Control main frame 30, and embedded Control main frame 30 is real-time Temperature in storehouse is detected, when temperature reaches higher limit, the operating of the controlled motor of embedded Control main frame 30;Temperature drops to lower limit When, the controlled motor of embedded Control main frame 30 is stopped;When embedded Control main frame 30 records temperature conditions and operation automatically Between, the data such as temperature information and motor action time are uploaded to by host computer 37, host computer 37 by wireless data transmission module 1 Receive can be shown in real time after signal, real-time monitoring site running situation, while host computer 37 is connected with grain inspection system 42, Grain inspection system 42 is connected with grain heap sensor 10, is gathered grain heap temperature by grain heap sensor 10, is passed through temperature data pair Situations such as drafting efficiency and power consumption, carries out comprehensive analysis.
Although above-mentioned the embodiment of invention is described with reference to accompanying drawing, not to the scope of the present invention Limitation, on the basis of technical scheme, those skilled in the art need not pay creative work and can make Various modifications or deform still within protection scope of the present invention.

Claims (5)

1. a kind of silo inner ring stream controller, including inner ring flow control case, inner ring flow control case are connected with external power source, described interior Circulation control cabinet includes casing, the chamber door being connected, it is characterized in that, electric wiring disk, the electric cloth are provided with the casing Drum is provided with air switch, electric machine controller module, embedded Control main frame, wireless data transmission module, Switching Power Supply, power supply wave Surge protector, A.C. contactor, relay and external wiring terminal;External power source, the power control line of circulation fan, storehouse temperature are passed Collection signal wire, the power line of Switching Power Supply of sensor are linked into the respective terminal of external wiring terminal;Motor control mould The output end of block input termination air switch, the output end of A.C. contactor input termination electric machine controller module, output termination The power interface of motor, relay is connected with A.C. contactor and controlled by embedded Control main frame;Power source surge protector It is connected with incoming power part;The wireless data transmission module one of inner ring flow control case passes through the embedded Control master in serial ports and casing Machine is connected, and wireless data transmission module one is connected by wireless data transmission module two with host computer, and embedded Control main frame passes through wireless day Line sends the signal to host computer, and storehouse temperature sensor passes through the embedded Control main frame in data acquisition line and inner ring flow control case Connection, embedded Control main frame is connected with host computer, and host computer is connected with grain inspection system, and grain inspection system is passed with grain heap Sensor connect, chamber door provided with LCDs, manually and automatic button, circulation and stifling button, LCDs, manually and Automatic button, circulation and stifling button are connected with embedded Control main frame respectively;
When the circulation in casing and stifling button rotation are to inner ring stream mode position, controller is in interior circulation mode of operation, Embedded Control main frame detects temperature in storehouse in real time, when temperature reaches higher limit, the operating of embedded Control host computer control motor; When temperature drops to lower limit, embedded Control host computer control motor is stopped;Embedded Control host record temperature conditions and Run time, uploads to host computer, host computer is received by wireless data transmission module by temperature information and motor action time data Display, real-time monitoring site running situation in real time after signal, host computer is connected with grain inspection system, grain inspection system and grain Heap sensor is connected, grain heap sensor collection grain heap temperature, and drafting efficiency and energy consumption condition are integrated by temperature data Analysis;When circulation and stifling button rotation are to recirculation fumigation position, controller is in recirculation fumigation pattern, is discharged in grain face Aluminum phosphide tablet, using air natural deliquescence, now motor reversal, wind speed and pressure is reduced, when air is extracted into grain face from air channel Negative pressure is internally formed, phosphine gas is realized into the recirculation fumigation inside silo by negative pressure from grain face to grain heap inner loop.
2. silo inner ring stream controller as claimed in claim 1, it is characterized in that, the chamber door includes outer chamber door, interior chamber door, outside Chamber door is equipped with case lock with interior chamber door, and outer chamber door, interior chamber door are hinged by loose-leaf and casing side respectively, LCDs, hand Dynamic and automatic button, circulation and stifling button are on interior chamber door.
3. silo inner ring stream controller as claimed in claim 1, it is characterized in that, the casing is being provided with upper close to bulkhead side Portion's boss, lower boss, mounting hole is provided with upper boss, lower boss, and control cabinet passes through the expanding screw that coordinates with mounting hole Silk is fixed on metope.
4. silo inner ring stream controller as claimed in claim 1, it is characterized in that, the bottom edge sealing plate of the casing is provided with bar Shape heat emission hole, it is ensured that good heat radiating and effectively prevent outdoor rain from penetrating into rack.
5. silo inner ring stream controller as claimed in claim 1, it is characterized in that, casing, the chamber door of the inner ring flow control case Made using stainless steel.
CN201510364482.3A 2015-06-26 2015-06-26 Silo inner ring stream controller Active CN104932578B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510364482.3A CN104932578B (en) 2015-06-26 2015-06-26 Silo inner ring stream controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510364482.3A CN104932578B (en) 2015-06-26 2015-06-26 Silo inner ring stream controller

Publications (2)

Publication Number Publication Date
CN104932578A CN104932578A (en) 2015-09-23
CN104932578B true CN104932578B (en) 2017-08-25

Family

ID=54119782

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510364482.3A Active CN104932578B (en) 2015-06-26 2015-06-26 Silo inner ring stream controller

Country Status (1)

Country Link
CN (1) CN104932578B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106227178A (en) * 2016-09-18 2016-12-14 济南金钟电子衡器股份有限公司 A kind of multiparameter grain feelings control system and intelligent aeration method
CN106525702B (en) * 2016-11-08 2023-05-26 河南工业大学 Fumigating-resistant testing device and fumigating-resistant testing method for granary equipment
CN108088958A (en) * 2017-12-19 2018-05-29 中国农业生产资料流通协会 A kind of phosphine concentration detection method applied to warehouse circulation fumigating system
CN108307813A (en) * 2018-01-08 2018-07-24 中储粮成都粮食储藏科学研究所 A kind of paddy Storing in quality guaranteed technique
CN111240257A (en) * 2020-03-21 2020-06-05 河南鑫道科技有限公司 Special intelligent measurement and control terminal control cabinet for granary

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0907152D0 (en) * 2009-04-27 2009-06-03 Vegetable Consultancy Services Ventilation system for a perishable goods store
CN101751027A (en) * 2009-12-22 2010-06-23 中央储备粮梧州直属库 Grain warehouse electrical automation control system
CN102907220A (en) * 2012-08-21 2013-02-06 国家粮食局科学研究院 Circular inflation modified atmosphere grain storage device and method using device
CN204790620U (en) * 2015-06-26 2015-11-18 济南金钟电子衡器股份有限公司 Circulation control ware in granary

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224016C2 (en) * 1992-07-21 1996-07-04 Goldsaat Fritz Doering Gmbh & Method and device for regulating the cooling of agricultural bulk goods
CN1186595A (en) * 1997-01-01 1998-07-08 萍乡市粮食局芦溪粮食管理所 Circular flow fumigation device and fumigation process by applying pesticide outside storehouse
US20060108434A1 (en) * 2001-08-10 2006-05-25 Cerys Systems Inc. Impartial co-management to aid crop marketing
CN2544444Y (en) * 2002-06-10 2003-04-09 卢旭 Outdoor used electric control box for oil production
JP3930438B2 (en) * 2003-02-03 2007-06-13 アース製薬株式会社 Pest control equipment
CN201123268Y (en) * 2007-11-28 2008-10-01 刘经天 Automatic temperature controlling and ventilating apparatus for food storage
NL2006973C2 (en) * 2011-06-21 2012-12-28 Meir Techniek B V Van STORAGE HALL FOR AGRICULTURAL PRODUCTS, SIDE WALL MODULE FOR SUCH STORAGE HALL, AND USE OF SUCH STORAGE HALL.
CN202890003U (en) * 2012-10-31 2013-04-24 罗庆杰 Five-network integrated intelligent grain depot equipment system
US8991123B2 (en) * 2013-03-15 2015-03-31 Storage Systems Northwest, Inc. Environmentally controlled storage facility for potatoes and other crops
CN203163171U (en) * 2013-03-29 2013-08-28 宁波思博达电子科技有限公司 Intelligent measure and control ventilation device
CN103885478A (en) * 2014-03-08 2014-06-25 苏州边枫电子科技有限公司 Intelligent timing control WIFI wireless transmission regulation and control system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0907152D0 (en) * 2009-04-27 2009-06-03 Vegetable Consultancy Services Ventilation system for a perishable goods store
CN101751027A (en) * 2009-12-22 2010-06-23 中央储备粮梧州直属库 Grain warehouse electrical automation control system
CN102907220A (en) * 2012-08-21 2013-02-06 国家粮食局科学研究院 Circular inflation modified atmosphere grain storage device and method using device
CN204790620U (en) * 2015-06-26 2015-11-18 济南金钟电子衡器股份有限公司 Circulation control ware in granary

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
新建平房仓磷化氢环流熏蒸杀虫试验;张来林 等;《粮食储藏》;20010630;第30卷;第22-25页 *

Also Published As

Publication number Publication date
CN104932578A (en) 2015-09-23

Similar Documents

Publication Publication Date Title
CN104932578B (en) Silo inner ring stream controller
CN104919992B (en) Interior circulation temperature control detracts grain storage system
CN206302655U (en) A kind of good regulator cubicle of security
CN202150650U (en) Combined type dehumidifying and heat dissipation device used for power distribution cabinet
CN206422682U (en) A kind of high-efficient heat dissipation device for frequency conversion control cabinet
CN207505324U (en) A kind of green building electric energy-saving switch board of high efficiency and heat radiation
CN204044643U (en) Intelligent Mobile Robot intelligent temperature control system
CN205609968U (en) Low pressure distribution equipment with dustproof function of high -efficient heat dissipation
CN206602282U (en) A kind of Multi-functional portable intelligent electric switch board for water supply installation
CN205212285U (en) Energy -concerving and environment -protective type block terminal
CN205319561U (en) Outdoor long -range block terminal of wall formula
CN202710626U (en) Outdoor electric meter box
CN203607719U (en) Portable small-size heat extraction device of floor-type low voltage power distribution cabinet
CN207611967U (en) One kind is from dedusting heat radiating type power distribution cabinet
CN204790620U (en) Circulation control ware in granary
CN218647040U (en) Intelligent electric energy metering box with real-time monitoring function
CN204597298U (en) A kind of intelligent heat dissipation dustproof power distribution cabinet
CN204242000U (en) A kind of electric blanket automatic temperature control system
CN203825507U (en) Coverage type monitoring intelligent regulation and control system of granary
CN105320192A (en) Automatic control device of large-power exhaust fan and heater
CN205985789U (en) Outdoor LED screen body and function rack
CN206259632U (en) A kind of rain-proof heat dissipation power distribution box
CN212081583U (en) Cabinet with fresh air device
CN205377040U (en) Power plant uses novel electric control box
CN209224956U (en) A kind of vehicle-mounted braking resistor of intelligent heat dissipation

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 250002 Ji'nan, central city, Shandong hero hill road, No. 147

Applicant after: Shandong Jinzhong science and technology group Limited by Share Ltd

Applicant after: BEIJING GOLDENBELL INFORMATION TECHNOLOGY CO., LTD.

Address before: 250002 Ji'nan, central city, Shandong hero hill road, No. 147

Applicant before: Jinan Jinzhong Electronic Scale Co., Ltd.

Applicant before: BEIJING GOLDENBELL INFORMATION TECHNOLOGY CO., LTD.

GR01 Patent grant
GR01 Patent grant