CN114423234A - Rare metal dissolves uses PH intelligent control device - Google Patents

Rare metal dissolves uses PH intelligent control device Download PDF

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Publication number
CN114423234A
CN114423234A CN202210047700.0A CN202210047700A CN114423234A CN 114423234 A CN114423234 A CN 114423234A CN 202210047700 A CN202210047700 A CN 202210047700A CN 114423234 A CN114423234 A CN 114423234A
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China
Prior art keywords
shell
fixedly connected
intelligent
control device
inner chamber
Prior art date
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Pending
Application number
CN202210047700.0A
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Chinese (zh)
Inventor
郭金妹
钟炜华
李心婳
梁入云
吴爱国
张红功
梁宇航
叶明亮
刘家仁
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.)
Ganzhou Xike Energy Saving Automation Equipment Co ltd
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Ganzhou Xike Energy Saving Automation Equipment Co ltd
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Application filed by Ganzhou Xike Energy Saving Automation Equipment Co ltd filed Critical Ganzhou Xike Energy Saving Automation Equipment Co ltd
Priority to CN202210047700.0A priority Critical patent/CN114423234A/en
Publication of CN114423234A publication Critical patent/CN114423234A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136Forced ventilation, e.g. by fans
    • H05K7/20145Means for directing air flow, e.g. ducts, deflectors, plenum or guides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/02Apparatus therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72415User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories for remote control of appliances
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0204Mounting supporting structures on the outside of casings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20209Thermal management, e.g. fan control
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

The invention discloses a PH intelligent control device for dissolving rare metals, which comprises a bracket and a shell, wherein the middle end of the right side of the shell is fixedly connected with a semiconductor refrigerating sheet, the lower end of the left side of the inner cavity of the shell is fixedly connected with a temperature sensor, the left side of the inner cavity of the shell and the upper end of the temperature sensor are fixedly connected with a partition plate, the left side of the inner cavity of the shell and the upper end of the partition plate are fixedly connected with a 4G communication module, and the right end of the bottom of the partition plate is fixedly provided with a suction fan. The intelligent heat dissipation device is provided with the temperature sensor, the intelligent heat dissipation purpose can be achieved, the use safety of the device is effectively guaranteed, the winding motor and the detector are arranged, the winding motor can drive the detector through the lead while rotating, people can conveniently store the detector, the 4G communication module is arranged, people can remotely control the device through the smart phone, the intelligent degree of the device is effectively improved, and great convenience is brought to the use of people.

Description

Rare metal dissolves uses PH intelligent control device
Technical Field
The invention relates to the technical field of PH automatic control systems, in particular to a PH intelligent control device for dissolving rare metals.
Background
Rare metals are metals which are contained in the earth's crust in a small amount, distributed sparsely or difficult to extract from raw materials, such as lithium, beryllium, titanium, vanadium, germanium, niobium, molybdenum, cesium, lanthanum, tungsten, radium, etc., and can be classified into the following according to their physical and chemical properties and production methods: (1) rare light metals such as beryllium, lithium, rubidium, cesium, and the like; (2) rare noble metals such as platinum, iridium, osmium, and the like; (3) rare dispersed metals such as gallium, germanium, indium, thallium, and the like; (4) rare earth metals such as scandium, yttrium, lanthanum, cerium, neodymium, etc.; (5) refractory rare metals such as titanium, zirconium, tantalum, vanadium, niobium, and the like; (6) the radioactive rare metals such as polonium, radium, actinium, uranium, plutonium and the like are mainly used for manufacturing special steel, superhard alloy and high-temperature-resistant alloy, and in the aspects of electrical industry, chemical industry, ceramic industry, atomic energy industry, rocket technology and the like, the rare metals need to be used in a pH automatic control system in the dissolving process.
PH automatic control system adopts programmable controller as the regulator mostly, can input multiple signal simultaneously, for example the PH value, input flow value, the storage tank liquid level, information such as control valve state, control system carries out certain operation with each information quantity of input, accurately calculate the metering value of required neutralizer according to the PH measured value, accurate control dosage, PH automatic control system is applied to numerous industrial production processes and waste water treatment process, but current PH intelligent control device overall structure is simple, the function is single, can't satisfy people's demand that increases day by day, for this reason, we provide a PH intelligent control device for rare metal dissolves.
Disclosure of Invention
The invention aims to provide an intelligent PH control device for dissolving rare metals, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a rare metal dissolves uses PH intelligent control device, includes support and shell, the middle-end fixedly connected with semiconductor refrigeration piece on shell right side, and the left lower extreme fixedly connected with temperature sensor of shell inner chamber, the left side of shell inner chamber and the upper end fixedly connected with baffle that is located temperature sensor, the left side of shell inner chamber and the upper end fixedly connected with 4G communication module who is located the baffle, the right-hand member fixed mounting of baffle bottom has the suction fan, and the output of suction fan passes through the left end intercommunication of pipeline and shell bottom, the upper end fixed mounting at the shell inner chamber back has the rolling motor, and the output shaft of rolling motor is connected with the detector through the wire.
Preferably, both sides all have the regulation pole through pivot swing joint around the support left side upper end, and the left side of adjusting the pole is connected through the right side of pivot with the shell, and simultaneously, there is electric telescopic handle bottom on shell right side through pivot swing joint, and electric telescopic handle's right side and the left side fixed connection of support.
Preferably, the support is of an L-shaped structure, a first mounting groove is formed in the upper end of the inner surface of the support, and a second mounting groove is formed in the left end of the inner surface of the support.
Preferably, the middle end of the bottom of the shell is provided with a reserved groove, the bottom of the reserved groove is movably connected with a cover plate through a hinge, and meanwhile, the middle end of the bottom of the cover plate is fixedly provided with a handle.
Preferably, the top fixedly connected with battery at shell inner chamber, and the left end at shell top has seted up the jack that charges, and simultaneously, the left upper end fixedly connected with central processing unit at shell inner chamber, the air intake has been seted up to the left end at the shell back, and the inner chamber of air intake is provided with the active carbon filter screen.
Preferably, the upper end of the left side of the housing is fixedly connected with the display, the lower end of the left side of the housing is provided with a control key, and the left end of the front surface of the housing is provided with an interface slot.
Preferably, the right side of the shell is fixedly connected with a protective cover positioned on the outer side of the semiconductor refrigeration sheet, and the inner surface of the protective cover is provided with a through groove.
Preferably, the 4G communication module includes a 4G gateway and a remote mobile terminal, and the remote mobile terminal is a smart phone accessing to a 4G network.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is provided with the temperature sensor which can detect the temperature in the shell, when the temperature in the shell exceeds the highest preset value, the power supply of the suction fan is automatically switched on, the suction fan blows out hot air in the shell to achieve the purpose of first-stage heat dissipation of heat in the shell, when the heat in the shell continues to rise, the temperature sensor can also continue to turn on the semiconductor refrigeration sheet, the semiconductor refrigeration sheet dissipates the heat in the shell, thereby achieving the purpose of intelligent heat dissipation, effectively ensuring the use safety of the device, the winding motor and the detector are arranged, the winding motor can drive the detector through a lead while rotating, thereby being convenient for people to store the detector, the 4G communication module is arranged, people can remotely control the device through a smart phone, thereby effectively improving the intelligent degree of the device, brings great convenience for people to use.
2. The adjustable telescopic rod is provided with the adjusting rod and the electric telescopic rod, the electric telescopic rod can drive the inclination angle of the shell to be adjusted while stretching, and the bracket, the first mounting groove and the second mounting groove are arranged, so that people can conveniently mount the adjustable telescopic rod on any position, and the adjustable telescopic rod is convenient for people to use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of a stent according to the present invention;
FIG. 3 is a schematic perspective view of the housing of the present invention;
fig. 4 is a schematic diagram of the working principle of the present invention.
In the figure: the device comprises a support 1, a cover plate 2, a reserved groove 3, a suction fan 4, a detector 5, a partition plate 6, a control key 7, a temperature sensor 8, a 4G communication module 9, a central processing unit 10, a display 11, an air inlet 12, a charging jack 13, a storage battery 14, a winding motor 15, a semiconductor refrigerating sheet 16, an adjusting rod 17, a through groove 18, a protective cover 19, a first mounting groove 20, an electric telescopic rod 21, a second mounting groove 22, an interface groove 23 and a shell 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an intelligent PH control device for dissolving rare metals comprises a support 1 and a housing 24, wherein a semiconductor chilling plate 16 is fixedly connected to the middle end of the right side of the housing 24, a temperature sensor 8 is fixedly connected to the lower end of the left side of the inner cavity of the housing 24, the temperature in the housing 24 can be detected, when the temperature in the housing 24 exceeds a maximum preset value, a power supply of a suction fan 4 is automatically connected, the suction fan 4 blows out hot air in the housing 24, the purpose of first-stage heat dissipation of heat in the housing 24 is achieved, when the heat in the housing 24 continues to rise, the temperature sensor 8 can continue to turn on the semiconductor chilling plate 16, the semiconductor chilling plate 16 dissipates heat in the housing 24, the purpose of intelligent heat dissipation is achieved, the use safety of the device is effectively guaranteed, a partition plate 6 is fixedly connected to the left side of the inner cavity of the housing 24 and to the upper end of the temperature sensor 8, the left side of 24 inner chambers of shell and the upper end fixedly connected with 4G communication module 9 that is located baffle 6, this device of people's accessible smart mobile phone remote control, thereby the intelligent degree of this device has effectively been improved, bring very big facility for people's use, the right-hand member fixed mounting of 6 bottoms of baffle has suction fan 4, and the left end intercommunication of the output of suction fan 4 bottom through pipeline and shell 24, the upper end fixed mounting at the 24 inner chambers of shell back has rolling motor 15, and rolling motor 15's output shaft is connected with detector 5 through the wire, rolling motor 15 can drive detector 5 through the wire in the pivoted, thereby make things convenient for people to accomodate detector 5.
All there is regulation pole 17 around the upper end of support 1 left side both sides through pivot swing joint, and the left side of adjusting pole 17 is connected through pivot and shell 24's right side, and simultaneously, there is electric telescopic handle 21 bottom on shell 24 right side through pivot swing joint, and the right side of electric telescopic handle 21 and the left side fixed connection of support 1, and electric telescopic handle 21 can drive shell 24's inclination and adjust when flexible.
Support 1 is "L" type structure, and the upper end of support 1 internal surface has seted up first mounting groove 20, and simultaneously, the second mounting groove 22 has been seted up to the left end of support 1 internal surface, can make things convenient for people to install this device in any position, has made things convenient for people's use.
Preformed groove 3 has been seted up to the middle-end of 24 bottoms of shell, and there is apron 2 bottom of preformed groove 3 through hinge swing joint, and simultaneously, the middle-end fixed mounting of apron 2 bottom has the handle.
The top fixedly connected with battery 14 at the 24 inner chambers of shell, and the left end at 24 tops of shell has seted up the jack 13 that charges, and simultaneously, the left upper end fixedly connected with central processing unit 10 at the 24 inner chambers of shell, air intake 12 has been seted up to the left end at the 24 backs of shell, and the inner chamber of air intake 12 is provided with the active carbon filter screen.
The display 11 is fixedly connected to the upper end of the left side of the housing 24, the control key 7 is arranged at the lower end of the left side of the housing 24, and the interface slot 23 is arranged at the left end of the front surface of the housing 24.
A protective cover 19 is fixedly connected to the right side of the casing 24 and located outside the semiconductor refrigeration sheet 16, and a through groove 18 is formed in the inner surface of the protective cover 19.
The 4G communication module 9 includes a 4G gateway and a remote mobile terminal, and the remote mobile terminal is a smart phone accessing to a 4G network.
When the device is used, the temperature sensor 8 is arranged, the temperature in the shell 24 can be detected, when the temperature in the shell 24 exceeds the highest preset value, the power supply of the suction fan 4 is automatically switched on, the suction fan 4 blows out hot air in the shell 24, the purpose of first-level heat dissipation of heat in the shell 24 is achieved, when the heat in the shell 24 continues to rise, the semiconductor refrigerating sheet 16 can be continuously opened by the temperature sensor 8, the heat in the shell 24 is dissipated by the semiconductor refrigerating sheet 16, the purpose of intelligent heat dissipation is achieved, the use safety of the device is effectively guaranteed, the winding motor 15 and the detector 5 are arranged, the winding motor 15 can drive the detector 5 through a conducting wire while rotating, people can conveniently store the detector 5, the 4G communication module 9 is arranged, and people can remotely control the device through a smart phone, thereby effectively improved the intelligent degree of this device, brought very big facility for people's use, set up regulation pole 17 and electric telescopic handle 21, electric telescopic handle 21 can drive the inclination of shell 24 when flexible and adjust, set up support 1, first mounting groove 20 and second mounting groove 22, can make things convenient for people to install this device in any position, made things convenient for people's use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a rare metal dissolves uses PH intelligent control device, includes support (1) and shell (24), its characterized in that: middle-end fixedly connected with semiconductor refrigeration piece (16) on shell (24) right side, and shell (24) inner chamber left lower extreme fixedly connected with temperature sensor (8), the left side of shell (24) inner chamber and the upper end fixedly connected with baffle (6) that is located temperature sensor (8), the left side of shell (24) inner chamber and the upper end fixedly connected with 4G communication module (9) that is located baffle (6), the right-hand member fixed mounting of baffle (6) bottom has suction fan (4), and the output of suction fan (4) passes through the left end intercommunication of pipeline and shell (24) bottom, the upper end fixed mounting at the shell (24) inner chamber back has rolling motor (15), and the output shaft of rolling motor (15) is connected with detector (5) through the wire.
2. The intelligent PH control device for dissolving rare metals according to claim 1, wherein: the front side and the rear side of the upper end of the left side of the support (1) are both movably connected with an adjusting rod (17) through a rotating shaft, the left side of the adjusting rod (17) is connected with the right side of the shell (24) through the rotating shaft, meanwhile, the bottom of the right side of the shell (24) is movably connected with an electric telescopic rod (21) through the rotating shaft, and the right side of the electric telescopic rod (21) is fixedly connected with the left side of the support (1).
3. The intelligent PH control device for dissolving rare metals according to claim 1, wherein: the support (1) is of an L-shaped structure, a first mounting groove (20) is formed in the upper end of the inner surface of the support (1), and meanwhile a second mounting groove (22) is formed in the left end of the inner surface of the support (1).
4. The intelligent PH control device for dissolving rare metals according to claim 1, wherein: the middle end of the bottom of the shell (24) is provided with a reserved groove (3), the bottom of the reserved groove (3) is movably connected with a cover plate (2) through a hinge, and meanwhile, the middle end of the bottom of the cover plate (2) is fixedly provided with a handle.
5. The intelligent PH control device for dissolving rare metals according to claim 1, wherein: the top fixedly connected with battery (14) of shell (24) inner chamber, and charging jack (13) have been seted up to the left end at shell (24) top, and simultaneously, shell (24) left upper end fixedly connected with central processing unit (10) at the inner chamber, air intake (12) have been seted up to the left end at the shell (24) back, and the inner chamber of air intake (12) is provided with the active carbon filter screen.
6. The intelligent PH control device for dissolving rare metals according to claim 1, wherein: the display (11) is fixedly connected to the upper end of the left side of the shell (24), the control key (7) is arranged at the lower end of the left side of the shell (24), and meanwhile, the interface groove (23) is formed in the left end of the front surface of the shell (24).
7. The intelligent PH control device for dissolving rare metals according to claim 1, wherein: the right side of shell (24) just is located the outside fixedly connected with protection casing (19) of semiconductor refrigeration piece (16), and logical groove (18) have been seted up to the internal surface of protection casing (19).
8. The intelligent PH control device for dissolving rare metals according to claim 1, wherein: the 4G communication module (9) comprises a 4G gateway and a remote mobile terminal, and the remote mobile terminal is a smart phone accessed to a 4G network.
CN202210047700.0A 2022-01-17 2022-01-17 Rare metal dissolves uses PH intelligent control device Pending CN114423234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210047700.0A CN114423234A (en) 2022-01-17 2022-01-17 Rare metal dissolves uses PH intelligent control device

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Application Number Priority Date Filing Date Title
CN202210047700.0A CN114423234A (en) 2022-01-17 2022-01-17 Rare metal dissolves uses PH intelligent control device

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160249483A1 (en) * 2015-02-23 2016-08-25 Honeywell International Inc. Remote terminal unit (rtu) supporting elevated operating temperature and reduced power consumption
CN209296716U (en) * 2019-01-03 2019-08-23 重庆市华测检测技术有限公司 A kind of Water quality detected instrument
CN110357002A (en) * 2019-07-01 2019-10-22 河南宝威智控科技有限公司 A kind of battery handling device
CN209542599U (en) * 2019-03-02 2019-10-25 四川艾格菲科技有限公司 A kind of water quality contact detecting apparatus remotely monitored for sewage
CN111629565A (en) * 2020-06-09 2020-09-04 安徽省徽腾智能交通科技有限公司 Image recognizer that radiating effect is good
CN214491014U (en) * 2021-01-22 2021-10-26 营口柯斯莫斯耐火材料有限公司 Binding agent adding device for producing magnesia carbon bricks
CN215439184U (en) * 2021-09-03 2022-01-07 兰州瑞鼎机电设备有限公司 Intelligent emergency leveling device for elevator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160249483A1 (en) * 2015-02-23 2016-08-25 Honeywell International Inc. Remote terminal unit (rtu) supporting elevated operating temperature and reduced power consumption
CN209296716U (en) * 2019-01-03 2019-08-23 重庆市华测检测技术有限公司 A kind of Water quality detected instrument
CN209542599U (en) * 2019-03-02 2019-10-25 四川艾格菲科技有限公司 A kind of water quality contact detecting apparatus remotely monitored for sewage
CN110357002A (en) * 2019-07-01 2019-10-22 河南宝威智控科技有限公司 A kind of battery handling device
CN111629565A (en) * 2020-06-09 2020-09-04 安徽省徽腾智能交通科技有限公司 Image recognizer that radiating effect is good
CN214491014U (en) * 2021-01-22 2021-10-26 营口柯斯莫斯耐火材料有限公司 Binding agent adding device for producing magnesia carbon bricks
CN215439184U (en) * 2021-09-03 2022-01-07 兰州瑞鼎机电设备有限公司 Intelligent emergency leveling device for elevator

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