CN114087534A - Wireless control inflator for combined electrical apparatus - Google Patents
Wireless control inflator for combined electrical apparatus Download PDFInfo
- Publication number
- CN114087534A CN114087534A CN202111420669.2A CN202111420669A CN114087534A CN 114087534 A CN114087534 A CN 114087534A CN 202111420669 A CN202111420669 A CN 202111420669A CN 114087534 A CN114087534 A CN 114087534A
- Authority
- CN
- China
- Prior art keywords
- wireless
- inflation
- combined electrical
- connector
- electrical apparatus
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
- F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
- F16L37/248—Bayonet-type couplings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention provides a wireless control inflator for a combined electrical appliance, which belongs to the technical field of SF6 gas inflation devices and comprises a wireless communication unit and an inflation unit, wherein the wireless communication unit comprises a control terminal and a wireless transmission module, and the control terminal is electrically connected with the wireless transmission module; the inflation unit comprises an inflation pipeline, a connector and a flow controller, the flow controller is respectively connected with the inflation pipeline and the connector pipeline, and the flow controller is in communication connection with the wireless transmitting module. The device can check the SF6 inflation flow at any time by using the control terminal, can switch the inflation device at any time, successfully inflates gas at one time during air supply, greatly improves the success rate of one-time inflation, can effectively prolong the service life of combined electricity, and avoids the strength loss of the shell caused by over-inflation. The device has the advantages of low manufacturing cost, portability, simple operation and convenient use.
Description
Technical Field
The invention belongs to the technical field of SF6 gas inflation devices, and particularly relates to a wireless control inflator for a combined electrical appliance.
Background
SF6 gas: SF6 is a strong electronegative gas, the molecules of which are easy to adsorb free electrons to form negative ions with large mass, and the impact ionization process in the gas is weakened, so the electrical insulation strength is very high, which is about 2.5 times of the insulation strength of air in a uniform electric field, and the arc extinguishing capability is about 100 times of the air. SF6 gas has been widely used as an arc-extinguishing medium for high-voltage circuit breakers since the end of the 20 th century, 50 s, due to its excellent arc-extinguishing and insulating properties and good chemical stability.
The traditional mode of charging the SF6 gas for the combined electrical appliance is generally completed by two to three persons, one person is responsible for controlling a gas cylinder valve and a pressure reducing valve at an SF6 gas cylinder, one person is responsible for installing an inflation connector and observing the gas pressure change of a density relay SF6 at an inflation port of the combined electrical appliance, and if the two persons are far away from each other, one person is additionally arranged between the two persons and is responsible for the information transmission of the two persons, so that the valves can be opened or closed in time.
When utilizing traditional mode to aerify combination electrical equipment, need many people to coordinate, it often is difficult to control to aerify the precision, often can take place gaseous undercharge of SF6 or overcharge phenomenon, owing to undercharge can lead to GIS equipment inside insulating properties not enough, overcharges and can influence GIS equipment casing intensity and seal, so need adjust it many times, consequently need to make things convenient for the combined electrical equipment wireless control that uses always to aerify the appearance.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: overcomes the defects in the prior art and provides a wireless control inflator for a combined electrical appliance.
In order to solve the problems, the invention adopts the technical scheme that:
a wireless control inflator for a combined electrical appliance comprises a wireless communication unit and an inflation unit, wherein the wireless communication unit comprises a control terminal and a wireless transmission module, and the control terminal is electrically connected with the wireless transmission module; the inflation unit comprises an inflation pipeline, a connector and a flow controller, the flow controller is respectively connected with the inflation pipeline and the connector pipeline, and the flow controller is in communication connection with the wireless transmitting module.
Preferably, the connector comprises a connector seat and a quick connector, and the quick connector is connected with the connector seat in an interference fit manner.
Preferably, the connecting head is sleeved with a lantern ring, the lantern ring is provided with an L-shaped groove, two sides of the quick plug are provided with pin shafts, and the pin shafts are connected with the L-shaped groove in a matched mode.
Preferably, the number of the quick connection-pegs is several, and the quick connection-pegs are matched with the inflation connectors of various combined electrical appliances.
Preferably, the flow controller comprises a control valve and a wireless receiving module, and the wireless receiving module is in communication connection with the wireless transmitting module.
Preferably, the wireless transmitting module and the wireless receiving module are bluetooth modules, ZigBee modules or WiFi modules.
Preferably, the control valve is an electromagnetic control valve.
Preferably, the number of the flow controllers is two, and the two flow controllers are respectively arranged at two ends of the inflation pipeline.
Preferably, the control terminal comprises a handheld terminal and an app client.
Preferably, the material of the gas charging pipeline is polyurethane material or stainless steel material or brass material.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a wireless control inflator for combined electrical appliances, which can check the inflation flow of SF6 at any time by using a control terminal, can switch an inflator at any time, can successfully inflate at one time during air inflation, greatly improves the success rate of one-time inflation, can effectively prolong the service life of combined electrical equipment, and avoids the strength loss of a shell caused by over inflation. The device has the advantages of low manufacturing cost, portability, simple operation and convenient use.
2. The invention provides a wireless control inflator for combined electrical appliances, wherein a plurality of types of quick connectors are arranged in the device, and the quick connectors can be matched with combined electrical appliances of different manufacturers, so that the trouble of increasing a connector is avoided, and the work efficiency of inflation is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a connector structure according to the present invention;
fig. 3 is a schematic diagram of a separated structure of the connector part of the present invention.
In the figure: 1. the mobile phone comprises a wireless communication unit, 2, an inflation unit, 11, a control terminal, 12, a wireless transmitting module, 13, a handheld terminal, 14, an app client, 21, an inflation pipeline, 22, a connector, 23, a flow controller, 24, a control valve, 25, a wireless receiving module, 26, a connector seat, 27, a quick connector, 28, a lantern ring, 29, an L-shaped groove, 30 and a pin shaft.
Detailed Description
The following embodiments are merely provided to more clearly illustrate the technical solutions of the present invention, and modifications made by those skilled in the art on the basis of the embodiments of the present invention are within the scope of the present invention.
3. As shown in fig. 1 to 3, the invention provides a wireless control inflator for a combined electrical apparatus, which includes a wireless communication unit 1 and an inflation unit 2, wherein the wireless communication unit 1 includes a control terminal 11 and a wireless transmission module 12, and the control terminal 11 is electrically connected to the wireless transmission module 12; the inflation unit 2 comprises an inflation pipeline 21, a connector 22 and a flow controller 23, wherein the flow controller 23 is respectively connected with the inflation pipeline 21 and the connector 22 through pipelines, and the flow controller 23 is in communication connection with the wireless transmitting module 12. The control terminal 11 in the inflator can control the flow controller 23 to be opened and closed from a distance, so that the defect that an SF6 gas cylinder is far away from a combined electrical appliance and needs a plurality of persons to finish inflation is overcome, one-time inflation is successful during gas supplement, the one-time inflation success rate is greatly improved, the service life of the combined electrical appliance can be effectively prolonged, and the shell strength loss caused by over-inflation is avoided. The device has the advantages of low manufacturing cost, portability, simple operation and convenient use.
As shown in fig. 2, the connector 22 includes a connector base 26 and a quick connector 27, and the quick connector 27 is connected with the connector base 26 in an interference fit manner. Because the combined electrical apparatus producer is numerous, the connector variety is various, and each original edition connector tail mouth also is different, need design a tail mouth can effectively reduce the numerous adapter that need use among the inflation process to be applicable to all brands and aerify the joint. The quick connector 27 adopts a plurality of arrangements, and the quick connector 27 is matched with the air inflation connectors of various brands of combined electrical appliances, so that the problem of matching adaptability of the inflator device is solved.
The connector 26 is sleeved with a lantern ring 28, the lantern ring 28 is provided with an L-shaped groove 29, two sides of the quick connector 27 are provided with pin shafts 30, and the pin shafts 30 are connected with the L-shaped groove 29 in a matched mode. When the quick connector 27 is connected with the connector base 26, the quick connector 27 is convenient to replace, the problem of air tightness between the quick connector 27 and the connector base 26 is solved, and the quick connector 27 and the connector base 26 are tightly connected together by means of interference fit connection and the cooperation of the L-shaped groove 29 and the pin shaft 30.
The number of the quick connection-peg 27 is several, and the quick connection-peg 27 is matched with the inflation connectors of various combined electrical appliances. To accommodate all brands of inflation connectors. The quick connector 27 adopts a plurality of arrangements, and the quick connector 27 is matched with the air inflation connectors of various brands of combined electrical appliances, so that the problem of matching adaptability of the inflator device is solved.
The flow controller 23 comprises a control valve 24 and a wireless receiving module 25, and the wireless receiving module 25 is in communication connection with the wireless transmitting module 12.
The wireless transmitting module 12 and the wireless receiving module 25 are bluetooth modules, ZigBee modules or WiFi modules. At present, two main types of wireless communication methods are cellular wireless communication and non-cellular wireless communication. The cellular wireless communication mode has a simple topological structure, is suitable for simple control commands, and can send the simple control commands point to point by using a short message system without an additional transfer server. However, in a complex region of a magnetic field of a transformer substation, the communication capability is poor, information is easy to lose in the transmission process, and the safety is low. Compared with a cellular wireless communication mode, the non-cellular wireless communication mode is an open protocol, a network can be automatically formed, each node of the network can transmit data by virtue of the power, and the short-distance information transmission reliability is high and the safety is high. The non-cellular wireless communication uses a 2.4GHz frequency band, is not influenced by high-frequency signals (500kHz-1600kHz) generated by high-voltage corona noise, and can effectively avoid the influence of a high-voltage strong electromagnetic field in a transformer substation on wireless signals. In conclusion, the combined electrical appliance wireless control inflator is more suitable for selecting a non-cellular wireless communication mode. The non-cellular wireless communication is a wireless communication technology established based on the IEEE802 protocol standard and mainly comprises three wireless transmission modes such as WIFI, ZIGBEE, Bluetooth and the like. The combined electrical apparatus wireless control inflator is used for a high-voltage chamber of a transformer substation, and firstly, the timeliness and the accuracy of wireless communication are ensured, and secondly, the anti-interference capability, the hardware cost and the like of a wireless module are considered.
The control valve 24 is an electromagnetic control valve. Aiming at the application environment of the developed inflator, the flow controller is divided into two parts, namely a control valve and a wireless receiver. The wireless receiver adopts a built-in battery mode, so that the field work and application are more convenient, although the battery capacity limits the durable use of the inflator, the 2000mA electric quantity can continuously supply power to the inflator for 70min, the power consumption time for each inflation is only 5min, and the actual requirements can be completely met.
The number of the flow controllers 23 is two, and the two flow controllers are respectively arranged at two ends of the inflation pipeline 21.
The control terminal 11 comprises a handheld terminal 13 and an app client 14, and the handheld terminal 13 is a tablet or a mobile phone based on an android system. Although the application technology of the handheld wireless remote controller is mature at present, communication signals are easy to interfere, terminals are easy to damage, the packaging volume is limited, the development function is very limited, and the handheld wireless remote controller is not suitable for the device. The communication terminal with the built-in app client can select a mobile phone or a tablet personal computer as a carrier at present, is convenient to carry, and has rich development functions without being limited by the size of the terminal. Therefore, the communication terminal (tablet/mobile phone) with the app program client is selected as the wireless control terminal for charging the combined electrical appliance.
The material of the air charging pipeline 21 is polyurethane material, stainless steel material or brass material.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that the invention is not limited thereto, and may be embodied in other forms without departing from the spirit or essential characteristics thereof. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.
Claims (10)
1. Appearance is aerifyd in combined electrical apparatus wireless control, its characterized in that:
the inflatable air bag comprises a wireless communication unit (1) and an inflatable unit (2), wherein the wireless communication unit (1) comprises a control terminal (11) and a wireless transmitting module (12), and the control terminal (11) is electrically connected with the wireless transmitting module (12);
aerify unit (2) including gas tube way (21), connector (22) and flow controller (23), flow controller (23) respectively with gas tube way (21), connector (22) tube coupling, flow controller (23) with wireless transmitting module (12) communication is connected.
2. The combined electrical apparatus wireless control inflator according to claim 1, characterized in that:
the connector (22) comprises a connector base (26) and a quick connector (27), and the quick connector (27) is connected with the connector base (26) in an interference fit manner.
3. The combined electrical apparatus wireless control inflator according to claim 2, characterized in that:
the quick connector is characterized in that a sleeve ring (28) is sleeved on the connector (26), an L-shaped groove (29) is formed in the sleeve ring (28), pin shafts (30) are arranged on two sides of the quick connector (27), and the pin shafts (30) are connected with the L-shaped groove (29) in a matched mode.
4. The combined electrical apparatus wireless control inflator according to claim 2, characterized in that:
the number of the quick connection-pegs (27) is several, and the quick connection-pegs (27) are matched with the air inflation connectors of various combined electrical appliances.
5. The combined electrical apparatus wireless control inflator according to claim 1, characterized in that:
the flow controller (23) comprises a control valve (24) and a wireless receiving module (25), and the wireless receiving module (25) is in communication connection with the wireless transmitting module (12).
6. The combined electrical apparatus wireless control inflator according to claim 5, characterized in that:
the wireless transmitting module (12) and the wireless receiving module (25) are Bluetooth modules or ZigBee modules or WiFi modules.
7. The combined electrical apparatus wireless control inflator according to claim 1, characterized in that:
the control valve (24) is an electromagnetic control valve.
8. The combined electrical apparatus wireless control inflator according to claim 1, characterized in that:
the number of the flow controllers (23) is two, and the two flow controllers are respectively arranged at two ends of the inflation pipeline (21).
9. The combined electrical apparatus wireless control inflator according to claim 4, characterized in that:
the control terminal (11) comprises a handheld terminal (13) and an app client (14), and the handheld terminal (13) is a tablet or a mobile phone based on an android system.
10. The combined electrical apparatus wireless control inflator according to claim 1, characterized in that:
the material of the air charging pipeline (21) is polyurethane material or stainless steel material or brass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111420669.2A CN114087534A (en) | 2021-11-26 | 2021-11-26 | Wireless control inflator for combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111420669.2A CN114087534A (en) | 2021-11-26 | 2021-11-26 | Wireless control inflator for combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114087534A true CN114087534A (en) | 2022-02-25 |
Family
ID=80304972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111420669.2A Pending CN114087534A (en) | 2021-11-26 | 2021-11-26 | Wireless control inflator for combined electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114087534A (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100193045A1 (en) * | 2007-07-12 | 2010-08-05 | Huanen Xu | Low consumption and intelligent safe gas-supply system for gas tanks |
| CN201846013U (en) * | 2010-09-29 | 2011-05-25 | 常州市德春电器有限公司 | Gas filled tank with multiple inlets and multiple outlets |
| CN102913704A (en) * | 2012-10-16 | 2013-02-06 | 中国北方车辆研究所 | Hydraulic quick joint convenient for mounting |
| CN202791030U (en) * | 2012-09-27 | 2013-03-13 | 杨益荣 | Conduit joint for grain depot |
| CN203176735U (en) * | 2013-01-12 | 2013-09-04 | 李华丽 | Flow detector with wireless monitoring system |
| CN103486440A (en) * | 2013-09-23 | 2014-01-01 | 国网安徽省电力公司淮南供电公司 | Rapid vacuum pumping and gas filling recycling connecting device, vacuum pumping method and gas filling method |
| CN103697324A (en) * | 2013-12-17 | 2014-04-02 | 国家电网公司 | Electrical intelligent SF6 gas charging device |
| CN203784542U (en) * | 2014-04-02 | 2014-08-20 | 宁波百瑞天然气高压压缩机有限公司 | Multi-path inflating joint |
| CN203810033U (en) * | 2014-01-24 | 2014-09-03 | 浙江大学 | Automatic inflator |
| CN204064321U (en) * | 2014-08-12 | 2014-12-31 | 国家电网公司 | Portable SF 6electrical equipment gas-charging connection connector |
| CN104534274A (en) * | 2015-01-19 | 2015-04-22 | 国家电网公司 | SF6 automatic air inflation device and automatic air inflation method thereof |
| CN104576470A (en) * | 2013-10-24 | 2015-04-29 | 陈明生 | Wireless transmission module and inflatable seat and inflatable cabinet applying wireless transmission module |
| CN205208133U (en) * | 2015-12-08 | 2016-05-04 | 国网福建省电力有限公司泉州供电公司 | But wireless control's full -automatic SF6 aerating device |
| CN205745796U (en) * | 2016-05-07 | 2016-11-30 | 浙江宁巍机械科技有限公司 | A kind of quick connector |
| CN106711834A (en) * | 2017-01-18 | 2017-05-24 | 国网安徽省电力公司宣城供电公司 | Rapid combined air supplement device for 10 kVSF6 gas insulated metal enclosed switch cabinet |
| CN106885085A (en) * | 2017-03-24 | 2017-06-23 | 安徽江淮汽车集团股份有限公司 | A kind of quick connector composite module |
| CN107606356A (en) * | 2017-09-05 | 2018-01-19 | 无锡市永兴金属软管有限公司 | It is a kind of can Fast Installation or dismounting metal hose joint |
| US20190232808A1 (en) * | 2016-10-10 | 2019-08-01 | In2Power Nv | Energy transmitter and receiver module |
| CN209925837U (en) * | 2019-05-24 | 2020-01-10 | 国家电网有限公司 | Combined SF6 inflator joint |
| CN211344367U (en) * | 2019-12-21 | 2020-08-25 | 玉环大地铜业股份有限公司 | Quick connector |
| CN211853507U (en) * | 2019-12-06 | 2020-11-03 | 河南省智仪系统工程有限公司 | Sulfur hexafluoride gas supply metering device based on Bluetooth communication |
| CN211853132U (en) * | 2020-03-27 | 2020-11-03 | 苏州派普机械有限公司 | Quick-connection type oil field oil pipe head fixed connection structure |
| CN112032158A (en) * | 2020-09-28 | 2020-12-04 | 贵阳甬鑫塑管制造有限公司 | Phosphogypsum composite PVC double-wall multipurpose pipe and manufacturing process thereof |
-
2021
- 2021-11-26 CN CN202111420669.2A patent/CN114087534A/en active Pending
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100193045A1 (en) * | 2007-07-12 | 2010-08-05 | Huanen Xu | Low consumption and intelligent safe gas-supply system for gas tanks |
| CN201846013U (en) * | 2010-09-29 | 2011-05-25 | 常州市德春电器有限公司 | Gas filled tank with multiple inlets and multiple outlets |
| CN202791030U (en) * | 2012-09-27 | 2013-03-13 | 杨益荣 | Conduit joint for grain depot |
| CN102913704A (en) * | 2012-10-16 | 2013-02-06 | 中国北方车辆研究所 | Hydraulic quick joint convenient for mounting |
| CN203176735U (en) * | 2013-01-12 | 2013-09-04 | 李华丽 | Flow detector with wireless monitoring system |
| CN103486440A (en) * | 2013-09-23 | 2014-01-01 | 国网安徽省电力公司淮南供电公司 | Rapid vacuum pumping and gas filling recycling connecting device, vacuum pumping method and gas filling method |
| CN104576470A (en) * | 2013-10-24 | 2015-04-29 | 陈明生 | Wireless transmission module and inflatable seat and inflatable cabinet applying wireless transmission module |
| CN103697324A (en) * | 2013-12-17 | 2014-04-02 | 国家电网公司 | Electrical intelligent SF6 gas charging device |
| CN203810033U (en) * | 2014-01-24 | 2014-09-03 | 浙江大学 | Automatic inflator |
| CN203784542U (en) * | 2014-04-02 | 2014-08-20 | 宁波百瑞天然气高压压缩机有限公司 | Multi-path inflating joint |
| CN204064321U (en) * | 2014-08-12 | 2014-12-31 | 国家电网公司 | Portable SF 6electrical equipment gas-charging connection connector |
| CN104534274A (en) * | 2015-01-19 | 2015-04-22 | 国家电网公司 | SF6 automatic air inflation device and automatic air inflation method thereof |
| CN205208133U (en) * | 2015-12-08 | 2016-05-04 | 国网福建省电力有限公司泉州供电公司 | But wireless control's full -automatic SF6 aerating device |
| CN205745796U (en) * | 2016-05-07 | 2016-11-30 | 浙江宁巍机械科技有限公司 | A kind of quick connector |
| US20190232808A1 (en) * | 2016-10-10 | 2019-08-01 | In2Power Nv | Energy transmitter and receiver module |
| CN106711834A (en) * | 2017-01-18 | 2017-05-24 | 国网安徽省电力公司宣城供电公司 | Rapid combined air supplement device for 10 kVSF6 gas insulated metal enclosed switch cabinet |
| CN106885085A (en) * | 2017-03-24 | 2017-06-23 | 安徽江淮汽车集团股份有限公司 | A kind of quick connector composite module |
| CN107606356A (en) * | 2017-09-05 | 2018-01-19 | 无锡市永兴金属软管有限公司 | It is a kind of can Fast Installation or dismounting metal hose joint |
| CN209925837U (en) * | 2019-05-24 | 2020-01-10 | 国家电网有限公司 | Combined SF6 inflator joint |
| CN211853507U (en) * | 2019-12-06 | 2020-11-03 | 河南省智仪系统工程有限公司 | Sulfur hexafluoride gas supply metering device based on Bluetooth communication |
| CN211344367U (en) * | 2019-12-21 | 2020-08-25 | 玉环大地铜业股份有限公司 | Quick connector |
| CN211853132U (en) * | 2020-03-27 | 2020-11-03 | 苏州派普机械有限公司 | Quick-connection type oil field oil pipe head fixed connection structure |
| CN112032158A (en) * | 2020-09-28 | 2020-12-04 | 贵阳甬鑫塑管制造有限公司 | Phosphogypsum composite PVC double-wall multipurpose pipe and manufacturing process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105182276A (en) | Intelligent electric energy meter detection module based on bluetooth communication and 485 communication and detection method | |
| CN201315390Y (en) | Socket | |
| CN114087534A (en) | Wireless control inflator for combined electrical apparatus | |
| CN106848759B (en) | A kind of Intelligent socket based on wireless charging | |
| CN208850083U (en) | A kind of debugging air conditioner system | |
| CN204305282U (en) | A kind of blue teeth wireless microphone | |
| CN210040051U (en) | SF based on NB-IoT narrowband Internet of things communication technology6Gas density relay | |
| CN110137754A (en) | A kind of charging connector of controllable mobile terminal temperature rise | |
| CN106443088B (en) | Electric shock preventing connector for discharge test of small-capacity storage battery pack | |
| CN209401158U (en) | A kind of communication device of data safety subregion | |
| CN205301568U (en) | Intelligent ammeter detection module based on bluetooth communication and 485 communications | |
| Xu et al. | Design of SMS-based remote control system using TC35 and MCU | |
| CN111932841A (en) | Gas leakage alarm system based on NB-IoT | |
| CN202308641U (en) | Intelligent plug and home network system | |
| CN208873017U (en) | A kind of voice switch panel | |
| CN201904448U (en) | N-type pin contact element radio frequency connector matched and connected with 1/2'' coaxial leaked cables | |
| CN101420243A (en) | Safe environment protection type mobile communication terminal and working method therefor | |
| CN208079055U (en) | A kind of radio transmitting receiving device for electrical appliance equipment | |
| CN216356006U (en) | Mobile power supply capable of replacing battery | |
| CN209447009U (en) | A kind of household electricity consumption on-off control system | |
| CN203787341U (en) | Solid-sealed insulated outdoor high-voltage switchgear | |
| CN217087900U (en) | Signal relay conversion receiver | |
| CN210692931U (en) | Intelligent socket of a key networking | |
| CN214412410U (en) | Wireless electric energy transmitting terminal and auxiliary positioning device | |
| CN202034548U (en) | Vertical cable plug for vehicle-mounted system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |