CN208226331U - A kind of low-pressure chamber AC switch cubicle - Google Patents
A kind of low-pressure chamber AC switch cubicle Download PDFInfo
- Publication number
- CN208226331U CN208226331U CN201820621725.6U CN201820621725U CN208226331U CN 208226331 U CN208226331 U CN 208226331U CN 201820621725 U CN201820621725 U CN 201820621725U CN 208226331 U CN208226331 U CN 208226331U
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- fixedly connected
- cabinet door
- sliding
- block
- pressure chamber
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Abstract
The utility model discloses a kind of low-pressure chamber AC switch cubicles, including cabinet body, the front of cabinet body is fixedly connected with the first support plate and the second support plate, and first the opposite face of support plate and the second support plate offer first sliding groove and second sliding slot respectively, and be slidably connected that there are two the first sliding blocks in first sliding groove.The low-pressure chamber AC switch cubicle, by the way that telescopic device is arranged, electric pushrod, fixture block, card slot, connecting plate, baffle, first sliding block and second spring, when needing to repair the intracorporal electronic original part of cabinet, control electric pushrod extends so that electric pushrod drives jacking block to move up, and two connecting plates drive left cabinet door and right cabinet door mutually separate respectively, so that left cabinet door and right cabinet door no longer block cabinet body, the intracorporal electronic component of cabinet is repaired to facilitate worker, and it does not need worker Xie Kaisuo or unscrews bolt, and cabinet door will not rotate automatically and cover cabinet body, the operation of worker is not only facilitated in this way, so that work task efficiency improves.
Description
Technical field
The utility model relates to technical field of electric power, specially a kind of low-pressure chamber AC switch cubicle.
Background technique
Switchgear is a kind of electric equipment, and outside line is introduced into master switch in cabinet, then enters back into sub-control switch, and each branch is pressed
It needs to be arranged.Such as instrument, motor magnetic switch and various A.C. contactors, some also sets hyperbaric chamber and low-pressure chamber switchs
Cabinet, is equipped with high voltage bus, such as power plant, and some is additionally provided with to protect the low-frequency load reduction of capital equipment.
Electronic original part in present power distribution cabinet generally requires worker and opens the cabinet door repairing intracorporal electronics of cabinet in damage
Element, however present cabinet door generally requires worker Xie Kaisuo or unscrew bolt when opening, and cabinet door after opening can not be by
It is fixed, so that cabinet door may rotate automatically and cover cabinet body, electronic original part not only is repaired to worker in this way and causes to hinder,
And the operation of worker is bothered, and working efficiency of the worker when repairing electronic original part is reduced.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of low-pressure chamber AC switch cubicle, solves now
Cabinet door generally require worker Xie Kaisuo when opening or unscrew bolt, and cabinet door can not be fixed after opening so that
Cabinet door may rotate automatically and cover cabinet body, not only repair electronic original part to worker in this way and cause to hinder, and bothered worker
Operation, and the problem of working efficiency of the worker when repairing electronic original part is reduced.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions: a kind of low-pressure chamber AC switch cubicle, including
Cabinet body, the front of the cabinet body are fixedly connected with the first support plate and the second support plate, and the first support plate and the second support plate
Opposite face offer first sliding groove and second sliding slot respectively, and be slidably connected in first sliding groove there are two the first sliding block, it is described
Be slidably connected in second sliding slot there are two the second sliding block, and the opposite face of first sliding block on right side and the second sliding block respectively with right cabinet
The upper and lower surfaces of door are fixedly connected, and first sliding block in left side and the opposite face of the second sliding block are upper with left cabinet door respectively
Surface is fixedly connected with lower surface.
The front of the right side of the left cabinet door and the left side overlap joint of right cabinet door, the left cabinet door and right cabinet door is fixed
Be connected with handle, the front of the left cabinet door and right cabinet door is fixedly connected to connecting plate, and two connecting plates it is mutually close one
Face is fixedly connected with two mutually separate one end of telescopic device respectively, and the mutually close one end of two telescopic devices respectively with two
Baffle is mutually separate to be fixedly connected on one side, and the back side of the baffle is fixedly connected with the front of the first support plate, the right cabinet door
Front be fixedly connected with fixed plate, the upper surface of the fixed plate is fixedly connected with driving device, the driving device it is upper
Surface and the lower surface of pressing plate overlap, and the upper surface of the pressing plate is connected with sliding sleeve, slide bar, the cunning are socketed in the sliding sleeve
The bottom end of bar is fixedly connected with the upper surface of fixed plate.
The outer surface of the slide bar is socketed with second spring, and the top and bottom end of the second spring are respectively and under sliding sleeve
Surface is fixedly connected with the upper surface of fixed plate, and the lower surface of the pressing plate is fixedly connected with fixture block, and the fixture block is arranged in card
In slot, the card slot is provided with the upper surface of fixed block, and the back side of the fixed block is fixedly connected with the front of left cabinet door.
Preferably, the telescopic device includes telescopic rod, and the outer surface of the telescopic rod is socketed with the first spring, described to stretch
The left and right ends of contracting bar and the first spring are fixedly connected with the left side of the right side of baffle and connecting plate respectively.
Preferably, the driving device includes electric pushrod, and the bottom end of the electric pushrod and the upper surface of fixed plate are solid
Fixed connection, the top of the electric pushrod are fixedly connected with the lower surface of jacking block, the upper surface of the jacking block and the following table of pressing plate
Face overlap joint.
Preferably, cabinet body lower surface four corners are fixedly connected to supporting leg, and the lower surface of the supporting leg is fixed
It is connected with friction pad.
Preferably, the back side of the cabinet body is fixedly connected with power supply, and the front of first support plate is fixedly connected with out
It closes.
Preferably, the output end of the power supply is electrically connected with the input terminal of switch, and the output end of the switch is pushed away with electronic
The input terminal of bar is electrically connected.
(3) beneficial effect
The utility model provides a kind of low-pressure chamber AC switch cubicle, have it is following the utility model has the advantages that
1, low-pressure chamber AC switch cubicle, by the way that telescopic device, electric pushrod, fixture block, card slot, connecting plate, gear is arranged
Plate, the first sliding block and second spring, when needing to repair the intracorporal electronic original part of cabinet, control electric pushrod elongation is so that electronic push away
Bar drives jacking block to move up, so that jacking block band dynamic pressure plate moves up, so that pressing plate drives fixture block to move upwardly so that fixture block
It is no longer stuck in card slot, while two telescopic devices extend so that two connecting plates are mutually separate, and two connecting plates drive respectively
Left cabinet door and right cabinet door are mutually separate, so that left cabinet door and right cabinet door no longer block cabinet body, repair in cabinet body to facilitate worker
Electronic component, and do not need worker Xie Kaisuo or unscrew bolt, and cabinet door will not rotate automatically and cover cabinet body, so not only
The operation of worker is facilitated, so that work task efficiency improves.
2, low-pressure chamber AC switch cubicle, by the first sliding block of setting and first sliding groove, so that left cabinet door and the right side
Cabinet door can drive the first sliding block to move left and right when moving left and right, so that the first sliding block moves left and right in first sliding groove, thus
So that left cabinet door and right cabinet door will not shake and more stable when moving left and right.
3, low-pressure chamber AC switch cubicle, by setting sliding sleeve and slide bar, so that pressing plate can be with when moving up and down
It drives sliding sleeve to move up and down, sliding sleeve is moved up and down along slide bar, so that pressing plate will not shake when moving up and down
It is dynamic and more stable, and the utility model which has a compact structure and a reasonable design, it is practical.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure that the utility model is faced；
Fig. 2 is the structural schematic diagram of the utility model backsight；
Fig. 3 is the structural schematic diagram amplified at the utility model A.
In figure: 1 switch, 2 first support plates, 3 baffles, 4 first sliding blocks, 5 telescopic devices, 501 first springs, 502 are stretched
Bar, 6 connecting plates, 7 first sliding grooves, 8 friction pads, 9 supporting legs, 10 right cabinet doors, 11 second sliding blocks, 12 second support plates, 13 second
Sliding slot, 14 left cabinet doors, 15 fixed blocks, 16 card slots, 17 fixture blocks, 18 pressing plates, 19 slide bars, 20 sliding sleeves, 21 second springs, 22 driving dresses
It sets, 221 jacking blocks, 222 electric pushrods, 23 fixed plates, 24 handles, 25 power supplys, 26 cabinet bodies.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figs. 1-2, the utility model provides a kind of technical solution: a kind of low-pressure chamber AC switch cubicle, including cabinet
Body 26,26 lower surface four corners of cabinet body are fixedly connected to supporting leg 9, and the lower surface of supporting leg 9 is fixedly connected with friction pad 8,
By the way that friction pad 8 is arranged, so that the supporting leg 9 when placing of cabinet body 26 will not skid with ground, so that cabinet body 26 is put
It set more stable and will not shake, the back side of cabinet body 26 is fixedly connected with power supply 25, by the way that power supply 25 is arranged, so that electric
Source 25 can power for electric pushrod 222, so that electric pushrod 222 can work normally, the front of the first support plate 2 is solid
Surely it is connected with switch 1, the output end of power supply 25 is electrically connected with the input terminal of switch 1, by the way that switch 1 is arranged, so that worker
Electric pushrod 222 can be controlled by switch 1 to work, the input terminal of the output end and electric pushrod 222 of switch 1 is electrically connected
It connects, the front of cabinet body 26 is fixedly connected with the first support plate 2 and the second support plate 12, and the first support plate 2 and the second support plate
12 opposite face offers first sliding groove 7 and second sliding slot 13 respectively, by the first sliding block 4 of setting and first sliding groove 7, to make
Left cabinet door 14 and right cabinet door 10 can drive the first sliding block 4 to move left and right when moving left and right so that the first sliding block 4 is sliding first
It is moved left and right in slot 7, so that left cabinet door 14 and right cabinet door 10 will not shake and more stable when moving left and right, and first
It is slidably connected in sliding slot 7 there are two the first sliding block 4, is slidably connected in second sliding slot 13 there are two the second sliding block 11, and right side
The opposite face of first sliding block 4 and the second sliding block 11 is fixedly connected with the upper and lower surfaces of right cabinet door 10 respectively, passes through setting
Second sliding block 11 and second sliding slot 13, so that left cabinet door 14 and right cabinet door 10 can drive the second sliding block 11 when moving left and right
It moves left and right, so that the second sliding block 11 moves left and right in second sliding slot 13, so that left cabinet door 14 and right cabinet door 10 are on a left side
Will not be shaken when moving right and more stable, and the opposite face of first sliding block 4 in left side and the second sliding block 11 respectively with left cabinet door
14 upper and lower surfaces are fixedly connected.
The front of the right side of left cabinet door 14 and the left side overlap joint of right cabinet door 10, left cabinet door 14 and right cabinet door 10 is fixed
It is connected with handle 24, the front of left cabinet door 14 and right cabinet door 10 is fixedly connected to connecting plate 6, by the way that connecting plate 6 is arranged, thus
Telescopic device 5 is allowed to drive left cabinet door 14 and right cabinet door 10 mobile by connecting plate 6 when extending, and two 6 phases of connecting plate
Close one side is fixedly connected with two mutually separate one end of telescopic device 5 respectively, by the way that telescopic device 5 is arranged, so that
Telescopic device 5 can drive left cabinet door 14 and right cabinet door 10 mutually separate when extending, and telescopic device 5 includes telescopic rod 502, telescopic rod
502 outer surface is socketed with the first spring 501, the left and right ends of telescopic rod 502 and the first spring 501 right side with baffle 3 respectively
Side is fixedly connected with the left side of connecting plate 6, by the way that baffle 3 is arranged, so that telescopic device 5 will not shake at work
And it is more stable, and the mutually close one end of two telescopic devices 5 respectively with two baffles 3 are mutually separate is fixedly connected on one side, keep off
The back side of plate 3 is fixedly connected with the front of the first support plate 2, and the front of right cabinet door 10 is fixedly connected with fixed plate 23, by setting
Fixed plate 23 is set, so that electric pushrod 222 will not shake and more stable at work, the upper surface of fixed plate 23 is fixed
It is connected with driving device 22, driving device 22 includes electric pushrod 222, the bottom end of electric pushrod 222 and the upper table of fixed plate 23
Face is fixedly connected, and the top of electric pushrod 222 is fixedly connected with the lower surface of jacking block 221, by the way that jacking block 221 is arranged, to make
Obtaining when jacking block 221 moves up can move up with dynamic pressure plate 18, and the upper surface of jacking block 221 and the lower surface of pressing plate 18 are taken
It connects, the lower surface of the upper surface of driving device 22 and pressing plate 18 overlaps, and the upper surface of pressing plate 18 is connected with sliding sleeve 20, in sliding sleeve 20
It is socketed with slide bar 19, by setting sliding sleeve 20 and slide bar 19, so that pressing plate 18 can drive on sliding sleeve 20 when moving up and down
Lower movement, moves up and down sliding sleeve 20 along slide bar 19 so that pressing plate 18 will not be shaken when moving up and down and
More stable, the bottom end of slide bar 19 is fixedly connected with the upper surface of fixed plate 23.
The outer surface of slide bar 19 is socketed with second spring 21, by the way that second spring 21 is arranged, so that second spring 21
Sliding sleeve 20 can be driven to move down when contraction, so that sliding sleeve 20 is moved down with dynamic pressure plate 18, allow fixture block 17 downward
Mobile card is in card slot 16, the top and bottom end of second spring 21 upper surface with the lower surface of sliding sleeve 20 and fixed plate 23 respectively
It is fixedly connected, the lower surface of pressing plate 18 is fixedly connected with fixture block 17, and fixture block 17 is arranged in card slot 16, by the way that 17 He of fixture block is arranged
Card slot 16, so that left cabinet door 14 will not be mutually separate again with right cabinet door 10 when fixture block 17 is stuck in card slot 16, so that left cabinet door
14 and right cabinet door 10 can be very good to cover the electronic original part in cabinet body 26, card slot 16 is provided with the upper surface of fixed block 15, Gu
The back side for determining block 15 is fixedly connected with the front of left cabinet door 14.
In use, worker controls electric pushrod 222 by switch 1 and stretches when needing to repair the electronic original part in cabinet body 26
Length is so that electric pushrod 222 drives jacking block 221 to move up, so that jacking block 221 is moved up with dynamic pressure plate 18, so that pressing plate 18
Fixture block 17 is driven to move upwardly so that fixture block 17 is no longer stuck in card slot 16, while two telescopic devices 5 extend so that two simultaneously
A connecting plate 6 is mutually separate, and two connecting plates 6 drive left cabinet door 14 and right cabinet door 10 mutually separate respectively, so that 14 He of left cabinet door
Right cabinet door 10 no longer blocks cabinet body 26, and when worker repairs the electronic component in cabinet body 26, worker pulls two handles 24 to make
It obtains left cabinet door 14 and right cabinet door 10 is mutually close, then control electric pushrod 222 and shrink so that electric pushrod 222 drives jacking block 221
It moves down, so that jacking block 221 no longer pushes pressing plate 18 upwards, drives sliding sleeve 20 to move down so that second spring 21 is shunk,
So that sliding sleeve 20 is moved down with dynamic pressure plate 18, so that pressing plate 18 drives fixture block 17 to stick into card slot 16, so that 14 He of left cabinet door
Right cabinet door 10 is fixed immovable, and left cabinet door 14 and right cabinet door 10 is allowed to cover cabinet body 26 always.
Can to sum up obtain, 1, the low-pressure chamber AC switch cubicle, by setting telescopic device 5, electric pushrod 222, fixture block 17,
Card slot 16, connecting plate 6, baffle 3, the first sliding block 4 and second spring 21, when needing to repair the electronic original part in cabinet body 26, control
Electric pushrod 222 processed extends so that electric pushrod 222 drives jacking block 221 to move up, so that jacking block 221 is upward with dynamic pressure plate 18
It is mobile, so that pressing plate 18 drives fixture block 17 to move upwardly so that fixture block 17 is no longer stuck in card slot 16, while two telescopic devices 5
Elongation is so that two connecting plates 6 are mutually separate, and two connecting plates 6 drive left cabinet door 14 and right cabinet door 10 mutually separate respectively, so that
Left cabinet door 14 and right cabinet door 10 no longer block cabinet body 26, to facilitate the electronic component in worker's repairing cabinet body 26, and are not required to
It wants worker Xie Kaisuo or unscrews bolt, and cabinet door will not rotate automatically and cover cabinet body 26, not only facilitate the behaviour of worker in this way
Make, so that work task efficiency improves.
2, low-pressure chamber AC switch cubicle, by the first sliding block 4 of setting and first sliding groove 7, so that left cabinet door 14
The first sliding block 4 can be driven to move left and right when moving left and right with right cabinet door 10, so that the first sliding block 4 left and right in first sliding groove 7
It is mobile, so that left cabinet door 14 and right cabinet door 10 will not shake and more stable when moving left and right.
3, low-pressure chamber AC switch cubicle, by setting sliding sleeve 20 and slide bar 19, so that pressing plate 18 moves up and down
When sliding sleeve 20 can be driven to move up and down, sliding sleeve 20 is moved up and down along slide bar 19, so that pressing plate 18 is upper
It will not be shaken when lower mobile and more stable, and the utility model which has a compact structure and a reasonable design, it is practical.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of low-pressure chamber AC switch cubicle, including cabinet body (26), it is characterised in that: the front of the cabinet body (26) is fixed to be connected
It is connected to the first support plate (2) and the second support plate (12), and the opposite face of the first support plate (2) and the second support plate (12) is distinguished
It offers first sliding groove (7) and second sliding slot (13), and is slidably connected that there are two the first sliding block (4) in first sliding groove (7), it is described
It is slidably connected in second sliding slot (13) there are two the second sliding block (11), and first sliding block (4) on right side and the second sliding block (11)
Opposite face is fixedly connected with the upper and lower surfaces of right cabinet door (10) respectively, and first sliding block (4) and the second sliding block in left side
(11) opposite face is fixedly connected with the upper and lower surfaces of left cabinet door (14) respectively；
The right side of the left cabinet door (14) and the left side overlap joint of right cabinet door (10), the left cabinet door (14) and right cabinet door (10)
Front be fixedly connected to handle (24), the front of the left cabinet door (14) and right cabinet door (10) is fixedly connected to connecting plate
(6), and the mutually close one side of two connecting plates (6) is fixedly connected with two mutually separate one end of telescopic device (5) respectively, and two
The mutually close one end of a telescopic device (5) respectively with two baffles (3) are mutually separate is fixedly connected on one side, the baffle (3)
The back side is fixedly connected with the front of the first support plate (2), and the front of the right cabinet door (10) is fixedly connected with fixed plate (23), institute
The upper surface for stating fixed plate (23) is fixedly connected with driving device (22), the upper surface and pressing plate (18) of the driving device (22)
Lower surface overlap joint, the upper surface of the pressing plate (18) is connected with sliding sleeve (20), is socketed with slide bar (19) in the sliding sleeve (20),
The bottom end of the slide bar (19) is fixedly connected with the upper surface of fixed plate (23)；
The outer surface of the slide bar (19) is socketed with second spring (21), the top and bottom end of the second spring (21) respectively with
The lower surface of sliding sleeve (20) is fixedly connected with the upper surface of fixed plate (23), and the lower surface of the pressing plate (18) is fixedly connected with card
Block (17), in card slot (16), the card slot (16) is provided with the upper surface of fixed block (15), described for fixture block (17) setting
The back side of fixed block (15) is fixedly connected with the front of left cabinet door (14).
2. a kind of low-pressure chamber AC switch cubicle according to claim 1, it is characterised in that: telescopic device (5) packet
It includes telescopic rod (502), the outer surface of the telescopic rod (502) is socketed with the first spring (501), the telescopic rod (502) and
The left and right ends of one spring (501) are fixedly connected with the left side of the right side of baffle (3) and connecting plate (6) respectively.
3. a kind of low-pressure chamber AC switch cubicle according to claim 1, it is characterised in that: driving device (22) packet
It includes electric pushrod (222), the bottom end of the electric pushrod (222) is fixedly connected with the upper surface of fixed plate (23), described electronic
The top of push rod (222) is fixedly connected with the lower surface of jacking block (221), upper surface and pressing plate (18) of the jacking block (221)
Lower surface overlap joint.
4. a kind of low-pressure chamber AC switch cubicle according to claim 1, it is characterised in that: cabinet body (26) lower surface
Four corners are fixedly connected to supporting leg (9), and the lower surface of the supporting leg (9) is fixedly connected with friction pad (8).
5. a kind of low-pressure chamber AC switch cubicle according to claim 1, it is characterised in that: the back side of the cabinet body (26)
It is fixedly connected with power supply (25), the front of first support plate (2) is fixedly connected with switch (1).
6. a kind of low-pressure chamber AC switch cubicle according to claim 5, it is characterised in that: the output of the power supply (25)
It holds and is electrically connected with the input terminal of switch (1), the output end of the switch (1) is electrically connected with the input terminal of electric pushrod (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621725.6U CN208226331U (en) | 2018-04-27 | 2018-04-27 | A kind of low-pressure chamber AC switch cubicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621725.6U CN208226331U (en) | 2018-04-27 | 2018-04-27 | A kind of low-pressure chamber AC switch cubicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208226331U true CN208226331U (en) | 2018-12-11 |
Family
ID=64512932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820621725.6U Expired - Fee Related CN208226331U (en) | 2018-04-27 | 2018-04-27 | A kind of low-pressure chamber AC switch cubicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208226331U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210887A (en) * | 2021-05-12 | 2021-08-06 | 赵璐 | Double-head laser cutting machine and using method thereof |
| CN113281585A (en) * | 2021-04-23 | 2021-08-20 | 武汉伊莱维特电力科技有限公司 | Partial discharge data acquisition device based on GIS switch cabinet equipment |
-
2018
- 2018-04-27 CN CN201820621725.6U patent/CN208226331U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113281585A (en) * | 2021-04-23 | 2021-08-20 | 武汉伊莱维特电力科技有限公司 | Partial discharge data acquisition device based on GIS switch cabinet equipment |
| CN113210887A (en) * | 2021-05-12 | 2021-08-06 | 赵璐 | Double-head laser cutting machine and using method thereof |
| CN113210887B (en) * | 2021-05-12 | 2022-08-05 | 深圳市海目芯微电子装备科技有限公司 | Double-head laser cutting machine and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190610 Address after: 650000 Yunnan Yundaxi Road, Kunming Economic and Technological Development Zone, Yunnan Province, 105 Yundian Science and Technology Park Patentee after: KUNMING YAOLONG ELECTRICAL Co.,Ltd. Address before: 312500 Dong Chen 110, East West Village, Chengtan Town, Xinchang, Shaoxing, Zhejiang Patentee before: XINCHANG COUNTY CHENGTAN TOWN BONA MACHINERY PLANT |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 |