CN105261500B - The blocking device of mine-used frequency-converter - Google Patents
The blocking device of mine-used frequency-converter Download PDFInfo
- Publication number
- CN105261500B CN105261500B CN201510766585.2A CN201510766585A CN105261500B CN 105261500 B CN105261500 B CN 105261500B CN 201510766585 A CN201510766585 A CN 201510766585A CN 105261500 B CN105261500 B CN 105261500B
- Authority
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- China
- Prior art keywords
- locking
- copper sheathing
- gag lever
- lever post
- button
- Prior art date
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Links
- 230000000903 blocking effect Effects 0.000 title claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 44
- 229910052802 copper Inorganic materials 0.000 claims description 44
- 239000010949 copper Substances 0.000 claims description 44
- 238000009434 installation Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 206010029987 Obturator Hernia Diseases 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
Landscapes
- Lock And Its Accessories (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a kind of blocking device of mine-used frequency-converter, including button assembling, switch lever assembling, the assembling of up and down bar, door locking assembling, disconnecting switch and travel switch, each component cooperates, realize the interlock function that the electric starting of complete machine is opened with door, when electrically starting, door is in blocking and can not open, and after electric stop, door is automatically switched to released state.The present invention is compact-sized, manually operated simple, reliable, preferably solves mine-used frequency-converter door and electric inter lock problem, is effectively guaranteed the life security of staff.
Description
Technical field
The invention belongs to mining equipment technical field, particularly a kind of blocking device of mine-used frequency-converter.
Background technology
The operating voltage of mine-used frequency-converter is high voltage, very high to security requirement, it is desirable to the electric starting of complete machine with
Door, which is opened, realizes interlocking, i.e., when electrically starting, door is in blocking and can not opened, after electric stop, door automatic conversion
To released state, now staff, which can open the door, carries out internal maintenance work.
The interlock function mechanical structure of mine-used frequency-converter is more complicated in the market, malfunction, processing and safeguard into
This is higher.
The content of the invention
It is an object of the invention to provide a kind of blocking device of mine-used frequency-converter simple in construction, the electric of complete machine is realized
Starting the interlock function opened with door, i.e., when electrically starting, door is in blocking and can not opened, after electric stop, door
Released state is automatically switched to, now staff, which can open the door, carries out internal maintenance work.
The technical solution for realizing the object of the invention is：
A kind of blocking device of mine-used frequency-converter, including button assembling, switch lever assembling, the assembling of up and down bar, door
Locking assembling, disconnecting switch and travel switch；
Button assembling includes button set, button copper sheathing, combined floodgate gag lever post, button spring and outer pad, and button set is consolidated with cavity wall
Fixed connection, button copper sheathing and button set interference fit installation, combined floodgate gag lever post in the presence of button spring with button copper sheathing gap
Coordinate, combined floodgate gag lever post bottom is fixedly connected with outer pad；Combined floodgate gag lever post can enter button set inside under external force, remove
After selling external force, combined floodgate gag lever post automatically resets under the elastic force effect of button spring；
Switch lever assembling includes handle disk body, close a floodgate set, combined floodgate copper sheathing, handle set, handle, combined floodgate axle and eccentric wheel,
The set that closes a floodgate is fixedly connected with cavity wall, combined floodgate copper sheathing and set interference fit installation of closing a floodgate；Combined floodgate axle right-hand member square shaft part and handle set
Square hole gap coordinates installation, and middle circle shaft portion coordinates with combined floodgate copper sheathing inner circle gap to be installed, left end square shaft part and eccentric wheel
Square hole gap coordinates installation；Handle set is connected to one with handle disk body, handle, and is fixedly connected with combined floodgate axle；Close a floodgate
Handle fits through the square hole of eccentric wheel and the square bar gap of disconnecting switch coordinates installation；
Up and down bar assembling includes copper sheathing, spacing axle bed, up and down bar spring and up and down bar, copper sheathing and top plate
Interference fit installation, up and down bar are arranged on limit shaft in the presence of up and down bar spring by coordinating with copper sheathing gap
The inside of seat, spacing axle bed are fixed with top plate；Up and down bar is protected with eccentric wheel all the time in the presence of up and down bar spring
Hold contact condition；
Door locking assembling include deadlock lever, gag lever post, locking copper sheathing, spacing copper sheathing, locking location-plate, locking fixed seat,
Lock nut, gag lever post compression spring, locking hand handle, closing piece and door；The interference fit installation of the circular hole of locking copper sheathing and front panel；
One end of deadlock lever coordinates with locking copper sheathing gap is installed, and the other end is fixed with locking location-plate；Spacing copper sheathing and front panel
Circular hole interference fit installation；One end of gag lever post is fixed under the elastic force of gag lever post compression spring and the pressure effect of lock nut
In the inside of locking fixed seat, center section coordinates with spacing copper sheathing gap is installed, and the other end is fixed with locking location-plate；Locking
Fixed seat is fixed with front panel；Lock nut is threadedly coupled with locking fixed seat installed in the inside of locking fixed seat；Locking hand
End and lock nut square hole gap coordinate install；Closing piece is connected with front panel, and the obturator hernia of door aligns deadlock lever
One end；
In approximately the same plane, the up and down motion of up and down bar can enter for the axis of up and down bar and the axis of gag lever post
Go out the gap position of gag lever post；
The square hole gap of disconnecting switch right-hand member square bar and eccentric wheel coordinates installation, and its bottom is fixed with top plate；Travel switch
It is fixed on front panel, the shake-up part of travel switch keeps contacting with locking location-plate just.
The present invention compared with prior art, has advantages below：
(1) present invention is compact-sized, and easy for installation, applicability is wide；
(2) the square bar rotary motion of the rotational movement disconnecting switch of eccentric wheel of the present invention and up and down bar up and down
Motion, the square bar rotary motion of disconnecting switch can realize the state switching (stopping, power frequency or frequency conversion) of disconnecting switch, up and down
The up and down motion of bar can control door to be in blocking or released state；
(3) in door locking assembling, two deadlock levers are realized by locking location-plate and are synchronized with the movement with gag lever post, locking
The obturator hernia of bar into and out of door can realize the locking or unblock of door.
Brief description of the drawings
Fig. 1 is the structural representation of the blocking device of mine-used frequency-converter of the present invention.
Fig. 2 is the structural representation of button of the present invention assembling and switch lever assembling.
Fig. 3 is the structural representation of door locking of the present invention assembling.
Fig. 4 is the structural representation of button of the present invention assembling.
Fig. 5 is the structural representation of eccentric wheel of the present invention and up and down bar.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
With reference to Fig. 1, a kind of blocking device of mine-used frequency-converter, including button assembling, switch lever assembling, up and down bar
Assembling, door locking assembling, disconnecting switch 15 and travel switch 34.
With reference to Fig. 4, button assembling includes button set 1, button copper sheathing 2, combined floodgate gag lever post 3, button spring 4, outer pad 5；Press
Button set 1 and the two-sided continuous welding of cavity wall 6；Button copper sheathing 2 is installed with the interference fit of button set 1；Combined floodgate gag lever post 3 is in button spring 4
In the presence of, fixed by coordinating with the gap of button copper sheathing 2 with the outer screw of pad 5.Combined floodgate gag lever post 3 under external force may be used
Into inside button set 1, after cancelling external force, combined floodgate gag lever post 3 automatically resets under the elastic force effect of button spring 4.
Switch lever assembling includes handle disk body 7, the set 8 that closes a floodgate, combined floodgate copper sheathing 9, pressure pad 10, handle set 11, handle 12, conjunction
Lock axle 13, eccentric wheel 14；Close a floodgate and cover 8 and the two-sided continuous welding of cavity wall 6；Combined floodgate copper sheathing 9 is installed with the interference fit of set 8 of closing a floodgate；Close
The right-hand member square shaft part of lock axle 13 coordinates with the square hole gap of handle set 11 installs, middle circle shaft portion and the inner circle gap of combined floodgate copper sheathing 9
Coordinate installation, left end square shaft part coordinates with the square hole gap of eccentric wheel 14 installs；Handle set 11 welds with handle disk body 7, handle 12
One is connected in, and is fixedly connected by pressure pad 10 with the screw of combined floodgate axle 13；Switch lever fit through the square hole of eccentric wheel 14 with
The square bar gap of disconnecting switch 15 coordinates installation.
Button assembling is used cooperatively with switch lever, in order to prevent misoperation starting frequency converter from causing unnecessary danger
Evil, as shown in Fig. 2 the handle disk body 7 is provided with three arc notch, power frequency, frequency conversion and stopping are corresponded to respectively, is closed a floodgate spacing
Bar 3 is in one of arc notch all the time；Only after the combined floodgate gag lever post 3 of button assembling is pressed, staff's ability
The handle 12 for rotating switch lever assembling carries out state switching to disconnecting switch 15.
Up and down bar assembling includes copper sheathing 17, spacing axle bed 18, up and down bar spring 19, up and down bar 20.Copper
Set 17 is installed with the interference fit of top plate 16；Up and down bar 20 is in the presence of up and down bar spring 19 by between copper sheathing 17
Gap coordinates is fixed installed in the inside of spacing axle bed 18, spacing axle bed 18 by screw and top plate 16；It is as shown in figure 5, living up and down
Lever 20 keeps contact condition with eccentric wheel 14 all the time in the presence of up and down bar spring 19.
As shown in figure 3, door locking assembling includes deadlock lever 21, gag lever post 22, locking copper sheathing 23, spacing copper sheathing 24, locking
Location-plate 25, locking fixed seat 26, lock nut 27, gag lever post compression spring 28, locking hand are 29, closing piece 30, door 31.Locking
The circular hole interference fit of copper sheathing 23 and front panel 35 is installed；One end of deadlock lever 21 coordinates with the gap of locking copper sheathing 23 installs, separately
One end is fixed by screw and locking location-plate 25；The circular hole interference fit of spacing copper sheathing 24 and front panel 35 is installed；Gag lever post
22 one end is fixed on locking fixed seat 26 under the elastic force of gag lever post compression spring 28 and the pressure effect of lock nut 27
Inside, center section coordinates with the spacing gap of copper sheathing 24 is installed, and the other end is fixed by screw and locking location-plate 25；Locking is consolidated
Reservation 26 is fixed by screw and front panel 35；Lock nut 27 is threadedly coupled with locking fixed seat 26 is arranged on locking fixed seat
26 inside；Locking hand, which coordinates 29 end with the square hole gap of lock nut 27, to be installed；Closing piece 30 is by screw and above
Plate 35 connects, it is therefore an objective to which the stepped portion by blocking a relevant position realizes pressing door, ensures the gap of door and front panel 35
Less than 0.3mm；If the Unscrew of door 31, door outwards lateral movement must exit closing piece 30, then Unscrew；Door 31 closes
Lockhole aligns one end of deadlock lever 21.
The axis of up and down bar 20 and the axis of gag lever post 22 are in approximately the same plane, the fortune up and down of up and down bar 20
The dynamic gap position that can pass in and out gag lever post 22.The up and down motion of up and down bar 20 represents electric starting or stopping, gag lever post
22 horizontal movement represents being turned on and off for door, and the gap position whether up and down bar 20 can pass in and out gag lever post 22 is realized
Electrically with the interlocking of door.
The square hole gap of the right-hand member square bar of disconnecting switch 15 and eccentric wheel 14, which coordinates, installs, and its bottom passes through screw and top plate 16
It is fixed.Travel switch is fixed on front panel 35 by substrate 32 and installing plate 33, and substrate 32 is welded with front panel 35, and stroke is opened
34 are closed to install by installing plate 33 and the transition of substrate 32；The shake-up part of travel switch 34 keeps connecing with locking location-plate 25 just
Touch, the position of travel switch is constant all the time, and inwardly motion can touch travel switch to locking location-plate 25.
The course of work of blocking device of the present invention is：
When frequency converter normal work, the blocking device is in the electric released state of door locking：It is inverse 29 using locking hand
Hour hands blocks rotation nut 27, gag lever post 22 are moved out under the effect of gag lever post compression spring 28, and the motion of gag lever post 22 is led to
Crossing locking location-plate 25 makes 21 synchronous outward movment of deadlock lever, and the end of deadlock lever 21 aligns the obturator hernia into introduction 31, at door 31
In blocking, now the lower position of up and down bar 20 aligns the gap position for blocking gag lever post 22 in a locking assembling,
During pressing combined floodgate gag lever post 3 and rotating switch lever 12, the rotary motion of the eccentric wheel 14 of switch lever assembling makes up and down
The lower end of motion bar 20 aligns the gap into gag lever post 22, realizes normal switching (power frequency or the change of the state of disconnecting switch 15
Frequently), it is ensured that staff only could start frequency converter after the closing of door 31；
When frequency converter needs repairing, the blocking device is in door unblock electric blocking state：, must when needing enabling 31
Switch lever 12, which must be rotated, makes disconnecting switch 15 be in halted state, and now up and down bar 20 is in up and down bar spring 19
The gap position of gag lever post 22 in locking assembling is exited under effect, is turned clockwise lock nut 27 29 using locking hand,
Being turned clockwise lock nut 27 29 using locking hand, gag lever post 22 inwardly moves under the effect of gag lever post compression spring 28,
The motion of gag lever post 22 makes 21 synchronous inward movement of deadlock lever by locking location-plate 25, and closing for door 31 is exited in the end of deadlock lever 21
Lockhole, door 31 are in open mode, and now the lower position of up and down bar 20 is spacing in can not aligning into introduction locking assembling
The gap position of bar 22, in rotary course, the eccentric wheel 14 of switch lever assembling is blocked switch lever 12 by up and down bar 20
Firmly, state switching (power frequency or frequency conversion) can not be carried out to disconnecting switch 15, it is ensured that staff can not start after enabling 31
Frequency converter.
Travel switch 34 by door locking assemble touch closure, when open the door 31 when, turned clockwise and closed 29 using locking hand
Split nut 27 touches travel switch 34 by gag lever post 22, locking location-plate 25 and closed, and now frequency converter control system receives door
Open signal.
Claims (10)
1. a kind of blocking device of mine-used frequency-converter, it is characterised in that assembled including button, switch lever assembles, be up and down
Bar assembling, door locking assembling, disconnecting switch (15) and travel switch (34)；
Button assembling includes button set (1), button copper sheathing (2), combined floodgate gag lever post (3), button spring (4) and outer pad (5), button
Set (1) is fixedly connected with cavity wall (6), and button copper sheathing (2) is installed with button set (1) interference fit, and combined floodgate gag lever post (3) is in button
Coordinate in the presence of spring (4) with button copper sheathing (2) gap, combined floodgate gag lever post (3) bottom is fixedly connected with outer pad (5)；Close a floodgate
Gag lever post (3) can enter button set (1) inside under external force, and after cancelling external force, combined floodgate gag lever post (3) is in button spring (4)
Elastic force effect under automatically reset；
Switch lever assembling includes handle disk body (7), the set (8) that closes a floodgate, combined floodgate copper sheathing (9), handle set (11), handle (12), conjunction
Lock axle (13) and eccentric wheel (14), the set (8) that closes a floodgate are fixedly connected with cavity wall (6), and combined floodgate copper sheathing (9) is matched somebody with somebody with set (8) interference of closing a floodgate
Close installation；Combined floodgate axle (13) right-hand member square shaft part coordinates with handle set (11) square hole gap installs, and middle circle shaft portion is with closing a floodgate
Copper sheathing (9) inner circle gap coordinates installation, and left end square shaft part coordinates with eccentric wheel (14) square hole gap installs；Handle set (11) with
Handle disk body (7), handle (12) are connected to one, and are fixedly connected with combined floodgate axle (13)；Switch lever fits through partially
The square hole of heart wheel (14) coordinates with the square bar gap of disconnecting switch (15) to be installed；
Up and down bar assembling includes copper sheathing (17), spacing axle bed (18), up and down bar spring (19) and up and down bar
(20), copper sheathing (17) is installed with top plate (16) interference fit, effect of the up and down bar (20) in up and down bar spring (19)
Under it is fixed installed in the inside of spacing axle bed (18), spacing axle bed (18) and top plate (16) by coordinating with copper sheathing (17) gap；
Up and down bar (20) keeps contact condition with eccentric wheel (14) all the time in the presence of up and down bar spring (19)；
Door locking assembling includes deadlock lever (21), gag lever post (22), locking copper sheathing (23), spacing copper sheathing (24), locking location-plate
(25), locking fixed seat (26), lock nut (27), gag lever post compression spring (28), locking hand are (29), closing piece (30) and door
(31)；The circular hole interference fit of locking copper sheathing (23) and front panel (35) is installed；One end of deadlock lever (21) and locking copper sheathing
(23) gap coordinates installation, and the other end is fixed with locking location-plate (25)；Spacing copper sheathing (24) and the circular hole mistake of front panel (35)
Cooperation of being full of is installed；One end of gag lever post (22) is in the elastic force of gag lever post compression spring (28) and the pressure effect of lock nut (27)
Under be fixed on the inside of locking fixed seat (26), center section coordinates with spacing copper sheathing (24) gap installs, the other end and locking
Location-plate (25) is fixed；Locking fixed seat (26) is fixed with front panel (35)；Lock nut (27) and locking fixed seat (26) spiral shell
Line connection is installed in the inside of locking fixed seat (26)；Locking hand matches somebody with somebody the end of (29) and the square hole gap of lock nut (27)
Close installation；Closing piece (30) is connected with front panel (35), and the obturator hernia of door (31) aligns one end of deadlock lever (21)；
The axis of up and down bar (20) and the axis of gag lever post (22) are in approximately the same plane, above and below up and down bar (20)
Motion can pass in and out the gap position of gag lever post (22)；
The square hole gap of disconnecting switch (15) right-hand member square bar and eccentric wheel (14), which coordinates, installs, and its bottom is fixed with top plate (16)；
Travel switch is fixed on front panel (35), and the shake-up part of travel switch (34) keeps connecing with locking location-plate (25) just
Touch.
2. the blocking device of mine-used frequency-converter according to claim 1, it is characterised in that the handle disk body (7) is set
There are three arc notch, correspond to power frequency, frequency conversion and stopping respectively, combined floodgate gag lever post (3) is in one of arc notch all the time
In.
3. the blocking device of mine-used frequency-converter according to claim 2, it is characterised in that travel switch (34) passes through substrate
(32) it is fixed on installing plate (33) on front panel (35), substrate (32) welds with front panel (35), and travel switch (34) passes through
Installing plate (33) is installed with substrate (32) transition.
4. the blocking device of the mine-used frequency-converter according to claim 1,2 or 3, it is characterised in that described button set (1)
The mode being fixedly connected with cavity wall (6) is two-sided continuous welding, and combined floodgate gag lever post (3) is fixed with outer pad (5) by screw to be connected
Connect.
5. the blocking device of the mine-used frequency-converter according to claim 1,2 or 3, it is characterised in that described combined floodgate set (8)
The mode being fixedly connected with cavity wall (6) is two-sided continuous welding.
6. the blocking device of the mine-used frequency-converter according to claim 1,2 or 3, it is characterised in that handle set (11) and hand
Handle disk body (7), handle (12) are welded as a whole, and are fixedly connected by pressure pad (10) with combined floodgate axle (13) screw.
7. the blocking device of the mine-used frequency-converter according to claim 1,2 or 3, it is characterised in that spacing axle bed (18) is logical
It is fixed with top plate (16) to cross screw.
8. the blocking device of the mine-used frequency-converter according to claim 1,2 or 3, it is characterised in that described deadlock lever
(21) and gag lever post (22) is fixed by screw and locking location-plate (25).
9. the blocking device of the mine-used frequency-converter according to claim 1,2 or 3, it is characterised in that described locking is fixed
Seat (26) and closing piece (30) are fixed by screw and front panel (35).
10. the blocking device of the mine-used frequency-converter according to claim 1,2 or 3, it is characterised in that described disconnecting switch
(15) bottom is fixed by screw and top plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766585.2A CN105261500B (en) | 2015-11-11 | 2015-11-11 | The blocking device of mine-used frequency-converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766585.2A CN105261500B (en) | 2015-11-11 | 2015-11-11 | The blocking device of mine-used frequency-converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105261500A CN105261500A (en) | 2016-01-20 |
| CN105261500B true CN105261500B (en) | 2018-01-02 |
Family
ID=55101141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510766585.2A Active CN105261500B (en) | 2015-11-11 | 2015-11-11 | The blocking device of mine-used frequency-converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105261500B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106449226B (en) * | 2016-10-28 | 2019-04-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | A kind of high-speed switch latching device and method |
| CN107808789A (en) * | 2017-12-12 | 2018-03-16 | 江苏新力科技实业有限公司 | A kind of mine explosion-suppression and intrinsic safety type enabling interlock |
| CN112201499A (en) * | 2020-09-21 | 2021-01-08 | 青岛中加特电气股份有限公司 | Locking device and method for using the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0219211A2 (en) * | 1985-08-30 | 1987-04-22 | Westinghouse Electric Corporation | Circuit breaker with replaceable rating plug interlock and push to trip button |
| CN102779669A (en) * | 2012-07-26 | 2012-11-14 | 三一重型装备有限公司 | Interlocking device and electric control box |
| CN103093985A (en) * | 2012-12-29 | 2013-05-08 | 沈阳北方重矿机械有限公司 | Mechanical latch linkage device in heading machine explosive-proof electric cabinet dual-quick-opening door |
| CN104299815A (en) * | 2013-07-19 | 2015-01-21 | 天地（常州）自动化股份有限公司 | Locking device of mining flameproof and intrinsically-safe multi-loop vacuum electromagnetic starter |
| CN205122420U (en) * | 2015-11-11 | 2016-03-30 | 中国船舶重工集团公司第七一六研究所 | Mine used frequency converter's blocking device |
-
2015
- 2015-11-11 CN CN201510766585.2A patent/CN105261500B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0219211A2 (en) * | 1985-08-30 | 1987-04-22 | Westinghouse Electric Corporation | Circuit breaker with replaceable rating plug interlock and push to trip button |
| CN102779669A (en) * | 2012-07-26 | 2012-11-14 | 三一重型装备有限公司 | Interlocking device and electric control box |
| CN103093985A (en) * | 2012-12-29 | 2013-05-08 | 沈阳北方重矿机械有限公司 | Mechanical latch linkage device in heading machine explosive-proof electric cabinet dual-quick-opening door |
| CN104299815A (en) * | 2013-07-19 | 2015-01-21 | 天地（常州）自动化股份有限公司 | Locking device of mining flameproof and intrinsically-safe multi-loop vacuum electromagnetic starter |
| CN205122420U (en) * | 2015-11-11 | 2016-03-30 | 中国船舶重工集团公司第七一六研究所 | Mine used frequency converter's blocking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105261500A (en) | 2016-01-20 |
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Effective date of registration: 20201119 Address after: 222061 Jiangsu city of Lianyungang Province Lake Road No. 18 Patentee after: 716TH RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. Patentee after: CSIC Information Technology Co.,Ltd. Address before: 222061 Jiangsu city of Lianyungang Province Lake Road No. 18 Patentee before: 716TH RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. Patentee before: JIANGSU JARI TECHNOLOGY GROUP Co.,Ltd. |
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Address after: 222061 No.18, Shenghu Road, Lianyungang City, Jiangsu Province Patentee after: The 716th Research Institute of China Shipbuilding Corp. Patentee after: CSIC Information Technology Co.,Ltd. Address before: 222061 No.18, Shenghu Road, Lianyungang City, Jiangsu Province Patentee before: 716TH RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. Patentee before: CSIC Information Technology Co.,Ltd. |
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Address after: 222061 No.18, Shenghu Road, Lianyungang City, Jiangsu Province Patentee after: The 716th Research Institute of China Shipbuilding Corp. Patentee after: China Shipbuilding Digital Information Technology Co.,Ltd. Address before: 222061 No.18, Shenghu Road, Lianyungang City, Jiangsu Province Patentee before: The 716th Research Institute of China Shipbuilding Corp. Patentee before: CSIC Information Technology Co.,Ltd. |
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