CN108678796B - A kind of coal mine wind-proof device - Google Patents
A kind of coal mine wind-proof device Download PDFInfo
- Publication number
- CN108678796B CN108678796B CN201810665638.5A CN201810665638A CN108678796B CN 108678796 B CN108678796 B CN 108678796B CN 201810665638 A CN201810665638 A CN 201810665638A CN 108678796 B CN108678796 B CN 108678796B
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- Prior art keywords
- air door
- gear
- door
- outer rack
- rack gear
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- 239000003245 coal Substances 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/10—Air doors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
- E05F15/67—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible or rigid rack-and-pinion arrangements
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Ventilation (AREA)
Abstract
The present invention provides a kind of coal mine wind-proof device, the first air door and the second air door including being parallel to coal mine channel cross-section, first air door includes the first set door of lower ending opening and its first sliding inner panel at middle part, the first set door is equipped with the first outer rack gear close to the second air door side, the first sliding inner panel is equipped with the first inner rack close to the second air door side, it is equipped with first gear group below the first outer rack gear, second air door and the first air door structure are symmetrical；It further include driving mechanism, the driving mechanism includes above the first air door and the second air door for driving the motor of driving wheel Double-directional rotary, and the third gear and the 4th gear engaged respectively with the first outer rack gear and the second outer rack gear, it is sequentially connected between the driving wheel, third gear and the 4th gear by transmission belt.Present apparatus structure is simple, convenient for operation, will not occupy tunnel inner space, have higher reliability and stability.
Description
Technical field
The present invention relates to a kind of coal mine wind-proof devices.
Background technique
Storm door is that underground coal mine can separate distinguished and admirable and passing vehicle pedestrian important equipment, mainly realization pair
The distinguished and admirable control of underground.And underground coal mine storm door requires at least to arrange two sects, in the case where one of storm door is closed,
It is able to achieve the unlatching at another sect, i.e. two sects cannot open simultaneously, otherwise cause to leak out or Air escape branch, influence mine ventilation
System.In the prior art, it in order to realize purpose that twice storm door cannot be opened simultaneously, generallys use interaction mechanical interlocking and sets
It sets, when a fan storm door is in the open state, another fan storm door is in close state, in interlock design, mostly
Interlocking is realized using pulley and locker, this structure in actual use, is primarily present following problems: using pulley and locking
Device carries out interaction interlocking to two fan storm doors, and structure is complicated, poor reliability, and device maintenance replacement is frequent；Using pulley and locking
Device carries out interaction interlocking to two fan storm doors, and structure is arranged in above storm door mostly, underworkings space is occupied, to coal mine
Driving exploitation and transport etc. cause hinder and interfere.
Summary of the invention
The purpose of the present invention is to provide a kind of coal mine wind-proof devices, the first wind including being parallel to coal mine channel cross-section
Door 1 and the second air door 2, first air door 1 and the second air door 2 distinguish square on a passage first sliding groove 13 and second sliding slot 23
In slide up and down, the first set door 11 of first air door 1 including lower ending opening and its first sliding inner panel 12 at middle part are described
First set door 11 is equipped with the first outer rack gear 111 close to 2 side of the second air door, and the first sliding inner panel 12 is close to the second air door 2
Side is equipped with the first inner rack 121, and first gear group 112 is equipped with below the first outer rack gear 111, and second air door 2 wraps
Second set of door 21 of lower ending opening and its second sliding inner panel 22 at middle part are included, second set of door 21 is close to the first air door 1 one
Side is equipped with the second outer rack gear 211, and the second sliding inner panel 22 is equipped with the second inner rack 221 close to 1 side of the first air door, described
Second gear group 212 is equipped with below second outer rack gear 211；It further include driving mechanism 3, the driving mechanism 3 includes being located at first
For driving the motor 31 of 32 Double-directional rotary of driving wheel above air door 1 and the second air door 2, and respectively with the first outer rack gear 111
The third gear 33 and the 4th gear 34 engaged with the second outer rack gear 211, the driving wheel 32, third gear 33 and the 4th gear
It is sequentially connected between 34 by transmission belt 35.
The first gear group 112 is just engaged with the first inner rack 121 when engaging with third gear 33, second tooth
Wheel group 212 is just engaged with the second inner rack 221 when engaging with the 4th gear 34.When original state, as shown in Figure 1, described
A set of door 11 and the first sliding inner panel 12 be bonded with passage bottom it is closed, and second set of door 21 and second slide inner panel 22 bottom
End is then flushed with channel roof；When the first air door 1, which needs to open, to be passed in and out for people and/or object, the motor 31 drives driving wheel
32 rotate clockwise to driving third gear 33 and the 4th gear 34 to rotate clockwise, at this point, the third gear 33 and the
The one outer engagement of rack gear 111 is to drive 11 upward sliding of first set door, while the 4th gear 34 is nibbled with second gear group 212
It closes to drive the second sliding 22 slide downward of inner panel, reaches state shown in Fig. 2；Then since first set door 11 reaches the limit of position
It sets so that third gear 33, which is jumped to, engages to drive with first gear group 112 first sliding 12 upward sliding of inner panel, simultaneously
It is engaged with the second outer rack gear 211 since the second sliding inner panel 22 reaches the limit of position and jumps to the 4th gear 34 to drive
Second set of 21 slide downward of door, until first air door 1 is opened, the second air door 2 is closed, and reaches state as shown in Figure 3；With
Wait people and/or object by the way that after the first air door 1, the motor 31 drives driving wheel 32 to rotate counterclockwise to drive third tooth afterwards
Wheel 33 and the 4th gear 34 rotate counterclockwise, at this point, the third gear 33 engages to drive first with first gear group 112
Slide 12 slide downward of inner panel, while the 4th gear 34 engaged with the second outer rack gear 211 thus drive second set of door 21 to
Upper sliding reaches state shown in Fig. 2；Then since second set of door 21 reaches the limit of position the 4th gear 34 is jumped to and the
The engagement of two gear sets 212 is to drive the second sliding 22 upward sliding of inner panel, simultaneously because the first sliding inner panel 12 reaches the limit of
Position jumps to third gear 33 to engage to drive 11 slide downward of first set door with the first outer rack gear 111, return just
Beginning state.
In one embodiment of the invention, the ground of the underface of first air door 1 and the second air door 2 is equipped with ground
Slot 4 is limited and is sealed when for closing the first air door 1 and/or the second air door 2.
The geosyncline 4 prevents the sealing function of air circulation in addition to position-limiting action can also further function as.
In one embodiment of the invention, the first gear group 112 includes the pinion gear that even number successively engages,
And the second gear group 212 includes the pinion gear that even number successively engages.
In one embodiment of the invention, the front and rear sides of first air door 1 are equipped with two group of first outer rack gear
111, the front and rear sides of the first inner rack 121 and first gear group 112, second air door 2 are equipped with two group of second outer rack gear
211, the second inner rack 221 and second gear group 212, correspondingly, being equipped with two sets between first air door 1 and the second air door 2
Driving mechanism 3, two sets of driving mechanisms 3 share a motor 31, and two driving wheels 32 pass through same root drive shaft and motor
31 are drivingly connected.
The setting of two sets of said mechanisms makes the safer stabilization of wind-proof device.
Using technical solution of the present invention, there is following beneficial technical effect:
1, driving structure 3 is located at the top in channel in the present apparatus, will not occupy tunnel inner space, and structure is simple, just
In operation, be conducive to the small space in optimization and reasonable distribution channel, improve coal mining efficiency.
2, it is driven in the present apparatus using gear and rack gear, improves the reliability and stability that device uses.
3, the present apparatus can guarantee that at least one in the first air door 1 and the second air door 2 is stablized in closed state, ensure that
The security reliability of device.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of coal mine wind-proof device original state disclosed by the invention；
Fig. 2 is the structural schematic diagram that a kind of coal mine wind-proof device disclosed by the invention runs intermediate state；
Fig. 3 is structural schematic diagram when a kind of the first air door of coal mine wind-proof device 1 disclosed by the invention is opened；
Fig. 4 is the enlarged structure schematic diagram of dotted line frame in Fig. 2.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
Embodiment 1
As shown in Figure 1-3, the present embodiment provides a kind of coal mine wind-proof device, including being parallel to coal mine channel cross-section
The first sliding groove 13 of side and second is slided on a passage respectively for one air door 1 and the second air door 2, first air door 1 and the second air door 2
It being slided up and down in slot 23, first air door 1 includes that the first set door 11 of lower ending opening and its first of middle part slide inner panel 12,
The first set door 11 is equipped with the first outer rack gear 111 close to 2 side of the second air door, and the first sliding inner panel 12 is close to the second wind
2 sides of door are equipped with the first inner rack 121, are equipped with first gear group 112, second air door 2 below the first outer rack gear 111
Second sliding inner panel 22 of second set of door 21 and its middle part including lower ending opening, second set of door 21 is close to the first air door 1
Side is equipped with the second outer rack gear 211, and the second sliding inner panel 22 is equipped with the second inner rack 221, institute close to 1 side of the first air door
It states and is equipped with second gear group 212 below the second outer rack gear 211；It further include driving mechanism 3, the driving mechanism 3 includes being located at the
For driving the motor 31 of 32 Double-directional rotary of driving wheel above one air door 1 and the second air door 2, and respectively with the first outer rack gear
111 and second outer rack gear 211 the third gear 33 and the 4th gear 34 that engage, the driving wheel 32, third gear 33 and the 4th
It is sequentially connected between gear 34 by transmission belt 35.
Embodiment 2
As shown in Figure 1-3, the present embodiment provides a kind of coal mine wind-proof device, including being parallel to coal mine channel cross-section
The first sliding groove 13 of side and second is slided on a passage respectively for one air door 1 and the second air door 2, first air door 1 and the second air door 2
It being slided up and down in slot 23, first air door 1 includes that the first set door 11 of lower ending opening and its first of middle part slide inner panel 12,
The first set door 11 is equipped with the first outer rack gear 111 close to 2 side of the second air door, and the first sliding inner panel 12 is close to the second wind
2 sides of door are equipped with the first inner rack 121, are equipped with first gear group 112, second air door 2 below the first outer rack gear 111
Second sliding inner panel 22 of second set of door 21 and its middle part including lower ending opening, second set of door 21 is close to the first air door 1
Side is equipped with the second outer rack gear 211, and the second sliding inner panel 22 is equipped with the second inner rack 221, institute close to 1 side of the first air door
It states and is equipped with second gear group 212 below the second outer rack gear 211；It further include driving mechanism 3, the driving mechanism 3 includes being located at the
For driving the motor 31 of 32 Double-directional rotary of driving wheel above one air door 1 and the second air door 2, and respectively with the first outer rack gear
111 and second outer rack gear 211 the third gear 33 and the 4th gear 34 that engage, the driving wheel 32, third gear 33 and the 4th
It is sequentially connected between gear 34 by transmission belt 35.The ground of the underface of first air door 1 and the second air door 2 is equipped with geosyncline
4, it is limited and is sealed when for closing the first air door 1 and/or the second air door 2.
Embodiment 3
As shown in Figs 1-4, the present embodiment provides a kind of coal mine wind-proof devices, and including being parallel to coal mine channel cross-section
The first sliding groove 13 of side and second is slided on a passage respectively for one air door 1 and the second air door 2, first air door 1 and the second air door 2
It being slided up and down in slot 23, first air door 1 includes that the first set door 11 of lower ending opening and its first of middle part slide inner panel 12,
The first set door 11 is equipped with the first outer rack gear 111 close to 2 side of the second air door, and the first sliding inner panel 12 is close to the second wind
2 sides of door are equipped with the first inner rack 121, are equipped with first gear group 112, second air door 2 below the first outer rack gear 111
Second sliding inner panel 22 of second set of door 21 and its middle part including lower ending opening, second set of door 21 is close to the first air door 1
Side is equipped with the second outer rack gear 211, and the second sliding inner panel 22 is equipped with the second inner rack 221, institute close to 1 side of the first air door
It states and is equipped with second gear group 212 below the second outer rack gear 211；It further include driving mechanism 3, the driving mechanism 3 includes being located at the
For driving the motor 31 of 32 Double-directional rotary of driving wheel above one air door 1 and the second air door 2, and respectively with the first outer rack gear
111 and second outer rack gear 211 the third gear 33 and the 4th gear 34 that engage, the driving wheel 32, third gear 33 and the 4th
It is sequentially connected between gear 34 by transmission belt 35.The first gear group 112 includes two pinion gears successively engaged, and institute
Stating second gear group 212 includes two pinion gears successively engaged.
Embodiment 4
The present embodiment provides a kind of coal mine wind-proof devices, the first air door 1 and including being parallel to coal mine channel cross-section
Two air doors 2, first air door 1 and the second air door 2 are distinguished in square on a passage first sliding groove 13 and second sliding slot 23 up and down
Sliding, first air door 1 include the first set door 11 of lower ending opening and its first sliding inner panel 12 at middle part, the first set
Door 11 is equipped with the first outer rack gear 111 close to 2 side of the second air door, and the first sliding inner panel 12 is set close to 2 side of the second air door
There is the first inner rack 121, first gear group 112 is equipped with below the first outer rack gear 111, second air door 2 includes lower end
Second set of door 21 of opening and its second sliding inner panel 22 at middle part, second set of door 21 are equipped with close to 1 side of the first air door
Second outer rack gear 211, the second sliding inner panel 22 is equipped with the second inner rack 221 close to 1 side of the first air door, outside described second
Second gear group 212 is equipped with below rack gear 211；It further include driving mechanism 3, the driving mechanism 3 includes being located at 1 He of the first air door
It is used to drive the motor 31 of 32 Double-directional rotary of driving wheel above second air door 2, and respectively and outside the first outer rack gear 111 and second
The third gear 33 and the 4th gear 34 that rack gear 211 engages lead between the driving wheel 32, third gear 33 and the 4th gear 34
Cross the transmission connection of transmission belt 35.The first gear group 112 includes four pinion gears successively engaged, and the second gear group
212 include four pinion gears successively engaged.The front and rear sides of first air door 1 are equipped with two group of first outer rack gear 111, first
The front and rear sides of inner rack 121 and first gear group 112, second air door 2 are equipped in two group of second outer rack gear 211, second
Rack gear 221 and second gear group 212, correspondingly, two sets of driving mechanisms 3 are equipped between first air door 1 and the second air door 2,
Two sets of driving mechanisms 3 share a motor 31, and two driving wheels 32 are drivingly connected by same root drive shaft and motor 31.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (4)
1. a kind of coal mine wind-proof device, it is characterised in that: the first air door (1) and second including being parallel to coal mine channel cross-section
Air door (2), first air door (1) and the second air door (2) distinguish square on a passage first sliding groove (13) and second sliding slot
(23) it is slided up and down in, first air door (1) includes in the first set door (11) of lower ending opening and its first sliding at middle part
Plate (12), the first set door (11) close to the second air door (2) side be equipped with the first outer rack gear (111), it is described first slide in
Plate (12) is equipped with the first inner rack (121) close to the second air door (2) side, is equipped with first below the first outer rack gear (111)
Gear set (112), second air door (2) include second set of door (21) of lower ending opening and its second sliding inner panel at middle part
(22), second set of door (21) is equipped with the second outer rack gear (211), the second sliding inner panel close to the first air door (1) side
(22) the second inner rack (221) are equipped with close to the first air door (1) side, are equipped with the second tooth below the second outer rack gear (211)
Wheel group (212)；It further include driving mechanism (3), the driving mechanism (3) includes being located on the first air door (1) and the second air door (2)
Side is for driving the motor (31) of driving wheel (32) Double-directional rotary, and the third gear engaged with the first outer rack gear (111)
(33) and with the second outer rack gear (211) the 4th gear (34) engaged, the driving wheel (32), third gear (33) and the 4th tooth
It takes turns and is sequentially connected between (34) by transmission belt (35).
2. coal mine wind-proof device according to claim 1, it is characterised in that: first air door (1) and the second air door
(2) ground of underface is equipped with geosyncline (4), for close the first air door (1) and/or whens the second air door (2) carry out limit and
Sealing.
3. coal mine wind-proof device according to claim 1, it is characterised in that: the first gear group (112) includes even
Several pinion gears successively engaged, and the second gear group (212) includes the pinion gear that even number successively engages.
4. coal mine wind-proof device according to claim 1, it is characterised in that: the front and rear sides of first air door (1)
Equipped with two group of first outer rack gear (111), the first inner rack (121) and first gear group (112), before second air door (2)
Two sides are equipped with two group of second outer rack gear (211), the second inner rack (221) and second gear group (212) afterwards, correspondingly, described the
Two sets of driving mechanisms (3) are equipped between one air door (1) and the second air door (2), two sets of driving mechanisms (3) share a motor
(31), two driving wheels (32) are drivingly connected by same root drive shaft and motor (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665638.5A CN108678796B (en) | 2018-06-26 | 2018-06-26 | A kind of coal mine wind-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810665638.5A CN108678796B (en) | 2018-06-26 | 2018-06-26 | A kind of coal mine wind-proof device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108678796A CN108678796A (en) | 2018-10-19 |
| CN108678796B true CN108678796B (en) | 2019-09-24 |
Family
ID=63812223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810665638.5A Active CN108678796B (en) | 2018-06-26 | 2018-06-26 | A kind of coal mine wind-proof device |
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| Country | Link |
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| CN (1) | CN108678796B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242341B (en) * | 2019-06-11 | 2024-01-12 | 太原理工大学 | A dustproof ponding air door that prevents for colliery main ventilation system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7769294A (en) * | 1993-11-10 | 1995-05-18 | Atlas Copco Rocktech Ab | Device for lifting and alignment of nets in rock reinforcement |
| CN202707117U (en) * | 2012-08-01 | 2013-01-30 | 兖州煤业股份有限公司 | Novel locking device of air door for coal mine ventilation |
| CN204238966U (en) * | 2014-11-27 | 2015-04-01 | 哈尔滨理工大学 | Coal mine ventilation door machinery Self-closing lock device |
-
2018
- 2018-06-26 CN CN201810665638.5A patent/CN108678796B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7769294A (en) * | 1993-11-10 | 1995-05-18 | Atlas Copco Rocktech Ab | Device for lifting and alignment of nets in rock reinforcement |
| CN202707117U (en) * | 2012-08-01 | 2013-01-30 | 兖州煤业股份有限公司 | Novel locking device of air door for coal mine ventilation |
| CN204238966U (en) * | 2014-11-27 | 2015-04-01 | 哈尔滨理工大学 | Coal mine ventilation door machinery Self-closing lock device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108678796A (en) | 2018-10-19 |
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Effective date of registration: 20190903 Address after: 312500 Dagunian Village 7-2, Jingling Town, Xinchang County, Shaoxing City, Zhejiang Province Applicant after: Xinchang Pingzhong Machinery Factory Address before: 315040 Jiangnan Road No. 586, Ningbo High-tech Zone, Zhejiang Province Applicant before: NINGBO FEICHAI ROBOT TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20211224 Address after: 276000 Economic Development Zone, Mengyin County, Linyi City, Shandong Province Patentee after: SHANDONG LUOXIANG AUTOMOBILE MANUFACTURING Co.,Ltd. Address before: 312500 No. 7-2, daguinian village, jingling Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: Xinchang Pingzhong Machinery Factory |
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Effective date of registration: 20221114 Address after: Room 1813, Administrative Service Center, No. 1, Renmin Road, Pingshang Town, Lingang Economic Development Zone, Linyi City, Shandong Province, 276000 Patentee after: Shandong Port Investment Development Co.,Ltd. Address before: 276000 Economic Development Zone, Mengyin County, Linyi City, Shandong Province Patentee before: SHANDONG LUOXIANG AUTOMOBILE MANUFACTURING Co.,Ltd. |