CN107598338A - A kind of MIG electric welding machines - Google Patents
A kind of MIG electric welding machines Download PDFInfo
- Publication number
- CN107598338A CN107598338A CN201710861566.7A CN201710861566A CN107598338A CN 107598338 A CN107598338 A CN 107598338A CN 201710861566 A CN201710861566 A CN 201710861566A CN 107598338 A CN107598338 A CN 107598338A
- Authority
- CN
- China
- Prior art keywords
- wire
- electric welding
- driving wheel
- welding machines
- housing
- 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
Landscapes
- Arc Welding Control (AREA)
Abstract
The invention discloses a kind of MIG electric welding machines, aim to provide a kind of clean environment firendly, MIG electric welding machines of efficient energy-saving for being easy to use, improving operating efficiency, its drip irrigation device is to include housing, the side door with housing hinge, installation room is provided with the housing, the side door is opening and closing the installation room, the installation room is provided with welding wire frame, control circuit, wire feeding motor and wire feeder, and the control circuit electrically connects wire feeding motor to control wire feeding motor start and stop；The wire feeder is fixed on the wire leading pipe in mounting seat, the driving wheel by wire feeding motor driving including mounting seat, close to welding wire rack position and to close to the left regulation wheel of the rolling surface of driving wheel；The lines of depression is provided with the rolling surface of the driving wheel.
Description
Technical field
The present invention relates to electric welding machine equipment technical field, more particularly to a kind of MIG electric welding machines.
Background technology
MIG welding is that welding portion is coated to by inert gas, promotes arc stability and prevents welding quality from changing, utilizes electricity
The metal of arc heat fusing welding portion, and be sent into welding rod and make the welding method of solder design, typically also known as semiautomatic welding, coated gas
Body arc welding or CO2 welding etc..
As license notification number is：CN205852034U Chinese patent, there is provided a kind of user only needs be welded
Welding current is adjusted in machine operation interface and selects welding material, it becomes possible to which adjust automatically goes out optimal Control Welding Process ginseng
Number, greatly reduce the MIG electric welder control systems based on expert database of welding operation difficulty.
Existing electric welding machine operationally gradually goes to develop toward convenient direction.And electric welding machine when in use, it is necessary to through
Perseverance removes replacing welding wire, and the phenomenon skidded or be broken easily occurs during wire feed in the welding wire of different model, influences to imitate
Rate, it is not easy to the use of people.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of MIG electric welding machines, have be easy to use,
Improve the advantage of operating efficiency.
The present invention above-mentioned technical purpose technical scheme is that：A kind of MIG electric welding machines, including shell
Body, with the side door of housing hinge, be provided with installation room on the housing, the side door is opening and closing the installation room, the peace
Dress room is provided with welding wire frame, control circuit, wire feeding motor and wire feeder, and the control circuit electrical connection wire feeding motor is used
To control wire feeding motor start and stop；The wire feeder includes mounting seat, is fixed on leading in mounting seat close to welding wire rack position
The left regulation wheel of fiber tube, the driving wheel by wire feeding motor driving and the rolling surface to close driving wheel；
The lines of depression is provided with the rolling surface of the driving wheel.
By above-mentioned setting, during use, welding wire is installed on welding wire frame, welding wire passes through wire leading pipe, and welding wire is by driving wheel
Clamped with left regulation wheel, the lines on driving wheel can drive welding wire to move, and lines adds frictional force, is not easy so that welding wire is beaten
Sliding, left regulation wheel plays a part of regulation to welding wire pressure, when needing to change welding wire, then can be entered by opening side
The installation and replacing of row welding wire.
Can be preferably as concrete scheme of the invention：Key connects between the output shaft of the driving wheel and wire feeding motor
Connect.
By above-mentioned setting, the output shaft dismounting facility of driving wheel and wire feeding motor can be along the axis direction of output shaft
Dismantled.
Can be preferably as concrete scheme of the invention：Governor motion is provided between the left regulation wheel and mounting seat,
The governor motion includes being rotatably connected in mounting seat and to install the rotating turret of the left regulation wheel, be movably arranged on installation
Adjusting the adjusting part of rotating turret rotational angle on seat.
By above-mentioned setting, adjusting part can limit the rotational angle of rotating turret, and active frame controls to adjust wheel and active
Spacing between wheel, differ for the pressure of welding wire, it is also adjusted hence for the dynamics of wire feed, adapt to the weldering of plurality of specifications
Silk.
Can be preferably as concrete scheme of the invention：The adjusting part includes turning with the parallel axis in wire feed direction
Dynamic rotating shaft part, the screw rod being threadedly connected on rotating shaft part, the supports block being socketed on screw rod and turn to drive supports block to compress
The spring of moving frame, is provided with the neck for screw rod setting-in on the rotating turret, and the supports block is being pressed on the rotating turret.
By above-mentioned setting, screw rod can be embedded in neck, and rotating turret is tentatively spacing, and now supports block will bear against rotating turret
Top, by rotary screw, now screw rod is moved down so that spring is compressed, and the elastic force of spring drives the rotation that supports block compresses
Frame is tighter.
Can be preferably as concrete scheme of the invention：The mounting seat is threaded with protective cover at driving wheel,
The protective cover lid is sleeved on driving wheel.
By above-mentioned setting, protective cover can prevent driving wheel from departing from the output shaft of wire feeding motor.
Can be preferably as concrete scheme of the invention：The bottom of the housing is provided with roller, is set on the side door
The first in command is equipped with, the top of the housing is provided with the second in command and the 3rd handle, the 3rd handle and second in command's one
Connect and deviate from the extension of roller direction.
By above-mentioned setting, housing sets roller to move integrally in order to it, conveniently carry.Set on the top of housing
The first in command and the second in command, the first in command can be in order to side openings, and the second in command can carry equipment, and the 3rd handle can
To lift the fore-end of housing, it is easy to carry out de- row housing by roller.
Can be preferably as concrete scheme of the invention：The control circuit is included to connect the input of external power source
End, power switch, power supply indicator, blower fan, thermal protector, main transformer, motor circuit for regulating and controlling and to connecting valve rifle
Connectivity port；
Voltage switch is connected between input and main transformer to control on/off；
Power supply indicator is indicating the working condition of power supply；
Blower fan is connected to the rear class of power switch, to be radiated to enclosure interior；
Thermal protector is connected between power input and motor circuit for regulating and controlling, to disconnect motor circuit for regulating and controlling in overheat
Power supply.
By above-mentioned setting, circuit working stability, radiating effect is notable, and security is higher, when cooling requirements are unable to reach
When, the power supply of motor circuit for regulating and controlling is directly cut off by thermal protector, stops wire feeding motor work.
Can be preferably as concrete scheme of the invention：The installation interior is provided with thermal-shutdown circuit, the mistake
Warm protection circuit includes multiple temperature sensors, an adder, a divider, comparator and alarm；
Temperature sensor, to gather the temperature conditions in a finite region and output temperature signal；
Adder connects all temperature sensors, to receive all temperature signals and carry out overlap-add procedure, exports cumulative signal；
Divider connects the output end of adder, to by the proportional reduction of cumulative signal；
Between the output end and alarm of comparator connection divider, to judge temperature upper limit, when temperature reaches the upper limit, control
Alarm work processed.
By above-mentioned setting, the order of accuarcy of temperature acquisition can be effectively improved, the use of multiple temperature sensors expands
Temperature acquisition regional extent.
Can be preferably as concrete scheme of the invention：Touch-switch is provided with the temperature sensor.
By above-mentioned setting, the regional extent of temperature detection can be adjusted, facility is controlled with using work.
In summary, the invention has the advantages that：It is easy to staff to operate with, improves the conveying to welding wire
Stability, improve the security of device interior.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is the structural representation of the present embodiment wire feeder；
Fig. 3 is the explosive view of the present embodiment wire feed structure；
Fig. 4 is the theory diagram of the present embodiment control circuit；
Fig. 5 is the theory diagram of the present embodiment thermal-shutdown circuit.
In figure：100th, housing；200th, side door；The 300th, room is installed；400th, welding wire frame；500th, control circuit；510th, input；
520th, power switch；530th, power supply indicator；540th, blower fan；550th, thermal protector；560th, main transformer；570th, motor regulation and control electricity
Road；580th, connectivity port；600th, wire feeding motor；700th, wire feeder；710th, mounting seat；720th, wire leading pipe；730th, driving wheel；
731st, lines；740th, left regulation wheel；750th, governor motion；751st, rotating turret；7511st, neck；752nd, adjusting part；7521st, rotating shaft
Part；7522nd, screw rod；7523rd, supports block；7524th, spring；760th, protective cover；810th, roller；820th, the first in command；830th, it is second
Hand；840th, the 3rd handle；910th, temperature sensor；920th, adder；930th, divider；940th, comparator；950th, alarm；
960th, touch-switch.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment：
A kind of MIG electric welding machines, as shown in figure 1, the side door 200 being hinged including housing 100, with housing 100, is set on housing 100
There is installation room 300.Side door 200 installs room 300 to open and close.
Installation is provided with welding wire frame 400, control circuit 500, wire feeding motor 600 in room 300（Do not illustrate in Fig. 1）And
Wire feeder 700.
Control circuit 500 electrically connects wire feeding motor 600 to control the start and stop of wire feeding motor 600.Wire feeder 700 includes peace
Dress seat 710, the wire leading pipe 720 being fixed on close to the position of welding wire frame 400 in mounting seat 710, the master driven by wire feeding motor 600
Driving wheel 730 and to close to driving wheel 730 rolling surface left regulation wheel 740.
With reference to shown in Fig. 2 and Fig. 3, key connection between the output shaft of driving wheel 730 and wire feeding motor 600.The He of driving wheel 730
The output shaft dismounting facility of wire feeding motor 600, can be dismantled along the axis direction of output shaft.
Governor motion 750 is provided between left regulation wheel 740 and mounting seat 710, governor motion 750 includes being rotatably connected on peace
Fill on seat 710 and to the rotating turret 751 of installation and adjustment wheel 740, be movably arranged in mounting seat 710 to adjust rotating turret
The adjusting part 752 of 751 rotational angles.
Adjusting part 752 includes with the rotating shaft part 7521 of the parallel axis rotation in wire feed direction, is threadedly connected to rotating shaft part
Screw rod 7522 on 7521, the supports block 7523 being socketed on screw rod 7522 and to drive supports block 7523 to compress rotating turret 751
Spring 7524, be provided with the neck 7511 being embedded in for screw rod 7522 on rotating turret 751, supports block 7523 is being pressed on rotating turret
On 751.
During using adjusting part 752：Adjusting part 752 can limit the rotational angle of rotating turret 751, active frame
The spacing between wheel 740 and driving wheel 730 is controlled to adjust, is differed for the pressure of welding wire, is also obtained hence for the dynamics of wire feed
To regulation, the welding wire of plurality of specifications is adapted to.
Screw rod 7522 can be embedded in neck 7511, and rotating turret 751 is tentatively spacing, and now supports block 7523 will bear against rotation
The top of frame 751, by rotary screw 7522, now screw rod 7522 is moved down so that spring 7524 is compressed, the bullet of spring 7524
The rotating turret 751 that power drives supports block 7523 to compress is tighter.
Mounting seat 710 is threaded with protective cover 760 at driving wheel 730, and the lid of protective cover 760 is sleeved on driving wheel 730
On.Protective cover 760 can prevent driving wheel 730 from departing from the output shaft of wire feeding motor 600.
The lines 731 of depression is provided with the rolling surface of driving wheel 730.
During use：Welding wire is installed, welding wire passes through wire leading pipe 720, and welding wire is by driving wheel 730 and adjusts on welding wire frame 400
Section wheel 740 clamps, and the lines 731 on driving wheel 730 can drive welding wire to move, and lines 731 adds frictional force, be not easy so that
Welding wire skids, and left regulation wheel 740 plays a part of regulation to welding wire pressure, then can be by beating when needing to change welding wire
Side is opened, carries out the installation and replacing of welding wire.
As described in Figure 1, the bottom of housing 100 is provided with roller 810, and the first in command 820, housing are provided with side door 200
100 top is provided with the handle 840 of the second in command 830 and the 3rd, and the 3rd handle 840 and the integrally connected of the second in command 830 are simultaneously
Extend away from the direction of roller 810.
Housing 100 sets roller 810 to move integrally in order to it, conveniently carry.First is set on the top of housing 100
Handle 820 and the second in command 830, the first in command 820 can be in order to side openings, and the second in command 830 can carry equipment, the
Three handles 840 can lift the fore-end of housing 100, be easy to carry out de- row housing 100 by roller 810.
As shown in figure 4, control circuit 500 is included to connect the input 510 of external power source, power switch 520, power supply
Indicator lamp 530, blower fan 540, thermal protector 550, main transformer 560, motor circuit for regulating and controlling 570 and to connecting valve rifle
Connectivity port 580.
Voltage switch is connected between input 510 and main transformer 560 to control on/off；Power supply indicator
530 indicating the working condition of power supply；Blower fan 540 is connected to the rear class of power switch 520, to be dissipated to the inside of housing 100
Heat；Thermal protector 550 is connected between power input 510 and motor circuit for regulating and controlling 570, is adjusted to disconnect motor in overheat
Control the power supply of circuit 570.
Circuit working stability, radiating effect is notable, and security is higher, when cooling requirements are unable to reach, passes through heat
Protector 550 directly cuts off the power supply of motor circuit for regulating and controlling 570, stops wire feeding motor 600 and works.
As shown in figure 5, being provided with thermal-shutdown circuit in installation room 300, thermal-shutdown circuit includes multiple TEMPs
The adder 920, one of device 910, one divider 930, comparator 940 and alarm 950.
Temperature sensor 910, to gather the temperature conditions in a finite region and output temperature signal；Adder 920
All temperature sensors 910 are connected, to receive all temperature signals and carry out overlap-add procedure, export cumulative signal；Divider
The output end of 930 connection adders 920, to by the proportional reduction of cumulative signal；Comparator 940 connects the defeated of divider 930
Go out between end and alarm 950, to judge temperature upper limit, control alarm 950 to work if temperature reaches the upper limit.
The order of accuarcy of temperature acquisition, the temperature acquisition of the use expansion of multiple temperature sensors 910 can be effectively improved
Regional extent.
Touch-switch 960 is provided with temperature sensor 910.The regional extent of temperature detection can be adjusted, with using work
It is controlled facility.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Claims (9)
- A kind of 1. MIG electric welding machines, it is characterised in that：The side door (200) being hinged including housing (100), with housing (100), it is described Be provided with housing (100) installation room (300), the side door (200) to open and close it is described installation room (300), the installation room (300) welding wire frame (400), control circuit (500), wire feeding motor (600) and wire feeder (700), the control are provided with Circuit (500) electrically connects wire feeding motor (600) to control wire feeding motor (600) start and stop；The wire feeder (700) includes peace Dress seat (710), the wire leading pipe (720) being fixed on close to welding wire frame (400) position in mounting seat (710), by wire feeding motor (600) left regulation wheel (740) of the driving wheel (730) of driving and the rolling surface to close driving wheel (730)；The lines (731) of depression is provided with the rolling surface of the driving wheel (730).
- A kind of 2. MIG electric welding machines according to claim 1, it is characterised in that：The driving wheel (730) and wire feeding motor (600) key connection between output shaft.
- A kind of 3. MIG electric welding machines according to claim 1, it is characterised in that：The left regulation wheel (740) and mounting seat (710) governor motion (750) is provided between, the governor motion (750) includes being rotatably connected in mounting seat (710) being used in combination To install the rotating turret of the left regulation wheel (740) (751), be movably arranged in mounting seat (710) to adjust rotating turret (751) The adjusting part (752) of rotational angle.
- A kind of 4. MIG electric welding machines according to claim 3, it is characterised in that：The adjusting part (752) is included with wire feed The rotating shaft part (7521) of the parallel axis rotation in direction, the screw rod (7522) being threadedly connected on rotating shaft part (7521), it is socketed in Supports block (7523) on screw rod (7522) and to drive supports block (7523) to compress the spring (7524) of rotating turret (751), institute The neck (7511) being provided with rotating turret (751) for screw rod (7522) setting-in is stated, the supports block (7523) is to be pressed on State on rotating turret (751).
- A kind of 5. MIG electric welding machines according to claim 1, it is characterised in that：The mounting seat (710) is in driving wheel (730) place is threaded with protective cover (760), and protective cover (760) lid is sleeved on driving wheel (730).
- A kind of 6. MIG electric welding machines according to claim 1, it is characterised in that：The bottom of the housing (100) is provided with rolling Take turns (810), be provided with the first in command (820) on the side door (200), the top of the housing (100) is provided with the second in command (830) and the 3rd handle (840), the 3rd handle (840) and the second in command's (830) integrally connected and away from roller (810) side To extension.
- A kind of 7. MIG electric welding machines according to claim 1, it is characterised in that：The control circuit (500) is included to even Connect input (510), power switch (520), power supply indicator (530), blower fan (540), the thermal protector of external power source (550), main transformer (560), motor circuit for regulating and controlling (570) and the connectivity port (580) to connecting valve rifle；Voltage switch is connected between input (510) and main transformer (560) to control on/off；Power supply indicator (530) is indicating the working condition of power supply；Blower fan (540) is connected to the rear class of power switch (520), to housing (100) internal heat dissipating；Thermal protector (550) is connected between power input (510) and motor circuit for regulating and controlling (570), to break in overheat Open the power supply of motor circuit for regulating and controlling (570).
- A kind of 8. MIG electric welding machines according to claim 1, it is characterised in that：Excess temperature is provided with installation room (300) Protection circuit, the thermal-shutdown circuit include multiple temperature sensors (910), an adder (920), a divider (930), comparator (940) and alarm (950)；Temperature sensor (910), to gather the temperature conditions in a finite region and output temperature signal；Adder (920) connects all temperature sensors (910), defeated to receive all temperature signals and carry out overlap-add procedure Go out cumulative signal；The output end of divider (930) connection adder (920), to by the proportional reduction of cumulative signal；Between the output end and alarm (950) of comparator (940) connection divider (930), to judge temperature upper limit, in temperature When degree reaches the upper limit, control alarm (950) work.
- A kind of 9. MIG electric welding machines according to claim 8, it is characterised in that：It is provided with the temperature sensor (910) Touch-switch (960).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861566.7A CN107598338A (en) | 2017-09-21 | 2017-09-21 | A kind of MIG electric welding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710861566.7A CN107598338A (en) | 2017-09-21 | 2017-09-21 | A kind of MIG electric welding machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107598338A true CN107598338A (en) | 2018-01-19 |
Family
ID=61061884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710861566.7A Pending CN107598338A (en) | 2017-09-21 | 2017-09-21 | A kind of MIG electric welding machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107598338A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772617A (en) * | 2018-07-11 | 2018-11-09 | 西安增材制造国家研究院有限公司 | A kind of precise fine silk wire-feed motor |
| CN113439000A (en) * | 2019-02-14 | 2021-09-24 | 亚历山大·宾策尔焊接技术两合公司 | Wire feed device and method for producing a wire feed |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788953Y (en) * | 2005-05-09 | 2006-06-21 | 邓上云 | Wire feeding mechanism for CO2 welder |
| CN201186368Y (en) * | 2008-04-24 | 2009-01-28 | 华四炜 | Gas shield welding machine |
| CN101743087A (en) * | 2007-08-31 | 2010-06-16 | 霍伯特兄弟公司 | Portable battery powered welder |
| CN103752999A (en) * | 2013-12-23 | 2014-04-30 | 上海广为焊接设备有限公司 | Lighting device of gas shielded welding machine and welding machine therewith |
| CN203887376U (en) * | 2014-04-30 | 2014-10-22 | 山东奥太电气有限公司 | Gas-shield welding machine with integrated wire feeder and welding power supply |
| CN105414706A (en) * | 2015-12-08 | 2016-03-23 | 上海沪工焊接集团股份有限公司 | Welding equipment structure |
| CN105583496A (en) * | 2014-11-07 | 2016-05-18 | 依赛彼集团公司 | Multifunction wire feeder for protable welding system |
-
2017
- 2017-09-21 CN CN201710861566.7A patent/CN107598338A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2788953Y (en) * | 2005-05-09 | 2006-06-21 | 邓上云 | Wire feeding mechanism for CO2 welder |
| CN101743087A (en) * | 2007-08-31 | 2010-06-16 | 霍伯特兄弟公司 | Portable battery powered welder |
| CN201186368Y (en) * | 2008-04-24 | 2009-01-28 | 华四炜 | Gas shield welding machine |
| CN103752999A (en) * | 2013-12-23 | 2014-04-30 | 上海广为焊接设备有限公司 | Lighting device of gas shielded welding machine and welding machine therewith |
| CN203887376U (en) * | 2014-04-30 | 2014-10-22 | 山东奥太电气有限公司 | Gas-shield welding machine with integrated wire feeder and welding power supply |
| CN105583496A (en) * | 2014-11-07 | 2016-05-18 | 依赛彼集团公司 | Multifunction wire feeder for protable welding system |
| CN105414706A (en) * | 2015-12-08 | 2016-03-23 | 上海沪工焊接集团股份有限公司 | Welding equipment structure |
Non-Patent Citations (1)
| Title |
|---|
| 中国专利局专利文献服务中心: "物品分布控制装置", 《专利文献通报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108772617A (en) * | 2018-07-11 | 2018-11-09 | 西安增材制造国家研究院有限公司 | A kind of precise fine silk wire-feed motor |
| CN113439000A (en) * | 2019-02-14 | 2021-09-24 | 亚历山大·宾策尔焊接技术两合公司 | Wire feed device and method for producing a wire feed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107598338A (en) | A kind of MIG electric welding machines | |
| EP1802845A4 (en) | Power tool anti-kickback system with rotational rate sensor | |
| CN203269992U (en) | Saw blade quenching machine | |
| CN215113895U (en) | Raw materials hot melting equipment is used in copper wire processing | |
| CN217717934U (en) | Distribution automation feeder terminal | |
| CN206846264U (en) | A kind of supervising device being easily installed | |
| CN215214049U (en) | Control module for human body automatic induction | |
| CN108672850A (en) | A kind of spark cutting machine | |
| CN208304193U (en) | A kind of electronics stator welder with slideway device for precisely regulating | |
| CN114566900A (en) | Block terminal and line control system with high temperature alarming function | |
| CN207304300U (en) | A kind of motor with overhead auxiliary radiating device | |
| CN207227837U (en) | A kind of electrothermal guillotine for chamferring fabric is put | |
| CN215548275U (en) | Electric screwdriver capable of electronically adjusting torque | |
| CN206185296U (en) | Two welder's motor casing automatic weld machine | |
| CN208584126U (en) | It is a kind of can bidirectional modulation motor stator welder | |
| CN107565760A (en) | A kind of motor with overhead auxiliary radiating device | |
| CN216858081U (en) | Press cutting tin wire machine | |
| CN220242318U (en) | Lamp shade injection molding machine convenient to regulation and control temperature | |
| CN209683412U (en) | A kind of car blinds band production processing equipment | |
| CN212043369U (en) | Welding gun for welding steel pipe by pipe making machine | |
| CN221870626U (en) | Stator coil resistance welding anti-deformation device | |
| CN214641284U (en) | Protection device of plasma cutting power supply | |
| CN207952907U (en) | A kind of butt-welding machine with protective cover | |
| CN211422985U (en) | Intelligent fan based on internet of things control | |
| CN219938832U (en) | Electric power centralized monitoring display screen |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |
|
| RJ01 | Rejection of invention patent application after publication |