CN212903863U - Test wire clamp for high-voltage equipment test - Google Patents
Test wire clamp for high-voltage equipment test Download PDFInfo
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- CN212903863U CN212903863U CN202022043928.1U CN202022043928U CN212903863U CN 212903863 U CN212903863 U CN 212903863U CN 202022043928 U CN202022043928 U CN 202022043928U CN 212903863 U CN212903863 U CN 212903863U
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- connecting rod
- round hole
- fixing block
- fixing
- block
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Abstract
The utility model provides a high-tension apparatus test fastener, relates to power equipment maintenance technical field, the utility model discloses be equipped with the telescopic link on controlling means, be equipped with the trapping mechanism on the telescopic link, through stretching out the telescopic link on the controlling means, trapping mechanism on the telescopic link stretches to survey the electric wire on, utilizes controlling means control trapping mechanism to clip the electric wire and reaches the experimental purpose of mechanical characteristic that just can be to high-tension switch class primary equipment loop resistance on ground, the utility model discloses rational in infrastructure utility model, convenient to carry makes the staff just can carry out the test experiment to eminence loop resistance on ground, and the safety risk falls to minimumly, and test data is accurate, ensures equipment and personnel's safety promptly, can accurately accomplish equipment correlation test work again.
Description
Technical Field
The utility model belongs to the technical field of the power equipment maintenance technique and specifically relates to a high-tension apparatus test fastener is related to.
Background
It is known, at present, the electric power industry is in the development of flying speed, people also increase day by day to the demand of electric power and rely on, people hope to have qualified uninterrupted power supply's electric power service, consequently, carry out loop resistance to high tension switchgear class primary equipment, during mechanical properties is experimental, the staff need be connected to the upper end of the equipment of 6 meters height with the test wire, because of the operation place reason, most high altitude construction car can't arrive, the operation personnel can only climb equipment or use ladder disconnect wire, the safety risk that the tester falls in the high altitude and equipment topples has been increased.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough among the background art, the utility model aims at providing a high tension apparatus tests fastener is related to, the utility model discloses be equipped with the telescopic link on controlling means, be equipped with trapping mechanism on the telescopic link, through stretching out the telescopic link on the controlling means, on trapping mechanism on the telescopic link stretches to the survey electric wire, utilize controlling means control trapping mechanism to carry the electric wire and reach the experimental purpose of mechanical characteristic that just can be to high tension switchgear class primary equipment loop resistance on ground.
In order to realize the utility model aims at, the utility model adopts the following technical scheme:
the utility model provides a high-tension apparatus test fastener, including controlling means, telescopic link and trapping mechanism, be equipped with the telescopic link on controlling means, be equipped with trapping mechanism on the telescopic link, trapping mechanism is by first fixed block, the second fixed block, the third fixed block, the fixed column, gu fixed ring and spring constitute, first fixed block is connected with the telescopic link, be equipped with the second fixed block on the first fixed block, be equipped with the fixed column on the second fixed block, be equipped with the third fixed block on the fixed column, be equipped with solid fixed ring on the third fixed block, the cover has the spring on the fixed column between second fixed block and the third fixed block.
The control device is composed of a first connecting rod, a second connecting rod and a grab handle, wherein the second connecting rod is arranged on the first connecting rod, the grab handle is arranged on the second connecting rod, and the grab handle is connected with the telescopic rod.
The first connecting rod is of a cylindrical or prismatic structure, a second connecting rod is arranged at the middle position of one side of the first connecting rod, a first round hole is formed in the middle position of the other side of the first connecting rod, the second connecting rod is perpendicular to the first connecting rod, one end of the second connecting rod is connected with the first connecting rod, a third round hole is formed in the other end of the second connecting rod, a first internal thread is arranged on the inner wall of the third round hole in the second connecting rod, a clamping groove is formed in the middle lower section of the second connecting rod and penetrates through the second connecting rod, the clamping groove is balanced with the first connecting rod, a grab handle is arranged in the clamping groove in the second connecting rod, and a telescopic rod is arranged in.
The grab handle is parallel to the first connecting rod, the grab handle is inserted into the clamping groove in the second connecting rod, an eighth round hole is formed in the middle of the grab handle, grooves of arc shapes are formed in two sides of the part, located outside the second connecting rod, of the grab handle respectively, at least one groove is formed in the grab handle, the grooves are arranged on the grab handle in an orderly mode, and second round holes are formed in two sides, located on the second connecting rod, of the grab handle respectively.
The outer wall of one end of the telescopic rod is provided with a first external thread, the first external thread on the telescopic rod is matched with a first internal thread on the inner wall of a third round hole on the second connecting rod, the outer wall of the other end of the telescopic rod is provided with a second external thread, and one end of the telescopic rod provided with the second external thread is connected with the wire clamping device.
One of the first fixing block is provided with a second fixing block, the other end of the first fixing block is provided with a fourth round hole, the outer wall of one side of the first fixing block is provided with a fifth round hole, the inner wall of the fourth round hole in the first fixing block is provided with a second internal thread, and the second internal thread in the inner wall of the fourth round hole in the first fixing block is matched with the second external thread in the telescopic rod.
The second fixing block is arranged on the first fixing block, a tenth round hole is formed in one end, connected with the first fixing block, of the second fixing block, a sixth round hole is formed in the outer wall, provided with the tenth round hole, of the second fixing block, second sawteeth are arranged on the surface of the other end of the second fixing block, at least one second sawtooth is arranged on the second fixing block in an orderly mode, and fixing columns are arranged in the tenth round hole in the second fixing block.
The fixing column is movably connected with the second fixing block, a connecting ring is arranged at the bottom of one end of the fixing column in the second fixing block, a third fixing block is arranged at the other end of the fixing column, a spring is arranged between the second fixing block and the third fixing block, and the spring is sleeved on the fixing column.
The third fixing block and the second fixing block are in the same shape, a ninth round hole is formed in one fixed end of the third fixing block, the third fixing block penetrates through the ninth round hole through the fixing column and is fixed on the fixing column through a fixing ring, the third fixing block on the fixing column corresponds to the second fixing block in position, a seventh round hole is formed in the outer wall of one end, provided with the ninth round hole, of the third fixing block, first sawteeth are arranged on the surface of the other end of the third fixing block, at least one first sawtooth is arranged on the third fixing block in an orderly mode, and the first sawteeth on the third fixing block correspond to the second sawteeth on the second fixing block in position.
The connecting wire penetrates from the eighth round hole on the grab handle to wear out in the second round hole on one side of the grab handle, then the connecting ring on the fixed column penetrates the eighth round hole on the grab handle to wear out from the second round hole on the other side of the grab handle, the electric wire penetrates from the first round hole on the first connecting rod to penetrate through the fifth round hole on the first fixing block through the second connecting rod and the telescopic rod, the part of wearing out is divided into a first branch line and a second branch line, the first branch line penetrates through the seventh round hole on the third fixing block to be connected with the first sawtooth, and the second branch line penetrates through the sixth round hole on the second fixing block to be connected with the second sawtooth.
A portable multi-functional warning area device, in order to overcome not enough among the background, the utility model discloses be equipped with the telescopic link on controlling means, be equipped with the trapping mechanism on the telescopic link, through stretching out the telescopic link on the controlling means, trapping mechanism on the telescopic link stretches to survey the electric wire, utilizes controlling means control trapping mechanism to clip the electric wire and reaches just can be to the experimental purpose of the mechanical characteristic of high tension switchgear class primary equipment loop resistance on ground, the utility model discloses rational in infrastructure utility model, convenient to carry makes the staff just can carry out the test experiment to eminence loop resistance on ground, and the safety risk falls to minimumly, and test data is accurate, ensures equipment and personnel's safety promptly, can accurately accomplish equipment correlation test work again.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the assembly of the present invention;
fig. 3 is a sectional schematic view of the present invention;
FIG. 4 is a schematic structural view of the wire clamping device of the present invention;
fig. 5 is a schematic view of the telescopic rod structure of the present invention;
fig. 6 is a schematic structural diagram of the control device of the present invention;
1. a control device; 2. a telescopic rod; 3. a wire clamping device; 4. an electric wire; 5. a handle; 6. a first circular hole; 7. a card slot; 8. a second circular hole; 9. a third circular hole; 10. a first internal thread; 11. a first external thread; 12. a second external thread; 13. a first fixed block; 14. a first connecting rod; 15. a second fixed block; 16. a third fixed block; 17. fixing a column; 18. a fixing ring; 19. a spring; 20. a first saw tooth; 21. a second saw tooth; 22. a fourth circular hole; 23. a second internal thread; 24. a fifth circular hole; 25. a sixth circular hole; 26. a seventh circular hole; 27. a first branch line; 28. a connecting wire; 29. a connecting ring; 30. an eighth circular hole; 31. a tenth circular hole; 32. a second branch line; 33. a second connecting rod; 34. a groove; 35. a ninth circular aperture.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
The high-voltage equipment test wire clamp comprises a control device 1, an expansion link 2 and a wire clamping device 3, the expansion link 2 is arranged on the control device 1, the wire clamping device 3 is arranged on the expansion link 2, the wire clamping device 3 is composed of a first fixing block 13, a second fixing block 15, a third fixing block 16, a fixing column 17, a fixing ring 18 and a spring 19, the first fixing block 13 is connected with the expansion link 2, the second fixing block 15 is arranged on the first fixing block 13, the fixing column 17 is arranged on the second fixing block 15, the third fixing block 16 is arranged on the fixing column 17, the fixing ring 18 is arranged on the third fixing block 16, and the spring 19 is sleeved on the fixing column 17 between the second fixing block 15 and the third fixing block 16.
The control device 1 is composed of a first connecting rod 14, a second connecting rod 33 and a handle 5, wherein the first connecting rod 14 is provided with the second connecting rod 33, the handle 5 is arranged on the second connecting rod 33, and the handle 5 is connected with the telescopic rod 2.
The first connecting rod 14 is of a cylindrical or prismatic structure, a second connecting rod 33 is arranged at the middle position of one side of the first connecting rod 14, a first round hole 6 is arranged at the middle position of the other side of the first connecting rod 14, the second connecting rod 33 is perpendicular to the first connecting rod 14, one end of the second connecting rod 33 is connected with the first connecting rod 14, a third round hole 9 is arranged at the other end of the second connecting rod 33, a first internal thread 10 is arranged on the inner wall of the third round hole 9 on the second connecting rod 33, a clamping groove 7 is formed in the middle lower section of the second connecting rod 33, the clamping groove 7 penetrates through the second connecting rod 33, the clamping groove 7 and the first connecting rod 14 are balanced, a grab handle 5 is arranged in the clamping groove 7 on the second connecting rod 33, and a telescopic rod 2 is arranged in.
The grab handle 5 is parallel to the first connecting rod 14, the grab handle 5 is inserted into the clamping groove 7 on the second connecting rod 33, the eighth round hole 30 is arranged in the middle of the grab handle 5, the two sides of the part of the grab handle 5, which is positioned outside the second connecting rod 33, are respectively provided with a circular arc groove 34, at least one groove 34 is formed, the grooves 34 are orderly arranged on the grab handle 5, and the two sides of the grab handle 5, which are positioned on the second connecting rod 33, are respectively provided with a second round hole 8.
Be equipped with first external screw thread 11 on the outer wall of 2 one ends of telescopic link, first internal thread 10 looks adaptation on the first external screw thread 11 on the telescopic link 2 and the third round hole 9 inner wall on the second connecting rod 33 is equipped with second external screw thread 12 on the outer wall of the 2 other ends of telescopic link, and telescopic link 2 is connected with trapping mechanism 3 in the one end that is equipped with second external screw thread 12.
One end of the first fixing block 13 is provided with a second fixing block 15, the other end of the first fixing block 13 is provided with a fourth round hole 22, the outer wall of one side of the first fixing block 13 is provided with a fifth round hole 24, the inner wall of the fourth round hole 22 on the first fixing block 13 is provided with a second internal thread 23, and the second internal thread 23 on the inner wall of the fourth round hole 22 on the first fixing block 13 is matched with the second external thread 12 on the telescopic rod 2.
The second fixing block 15 is arranged on the first fixing block 13, one end, connected with the first fixing block 13, of the second fixing block 15 is provided with a tenth round hole 31, the outer wall of one end, provided with the tenth round hole 31, of the second fixing block 15 is provided with a sixth round hole 25, the surface of the other end of the second fixing block 15 is provided with second saw teeth 21, at least one second saw tooth 21 is arranged, the second saw teeth 21 are sequentially arranged on the second fixing block 15, and fixing columns 17 are arranged in the tenth round hole 31 in the second fixing block 15.
The fixed column 17 is movably connected with the second fixed block 15, a connecting ring 29 is arranged at the bottom of one end of the fixed column 17 in the second fixed block 15, a third fixed block 16 is arranged at the other end of the fixed column 17, a spring 19 is arranged between the second fixed block 15 and the third fixed block 16, and the spring 19 is sleeved on the fixed column 17.
The shape of the third fixed block 16 is consistent with that of the second fixed block 15, one end of the third fixed block 16 is provided with a ninth round hole 35, the third fixed block 16 passes through the ninth round hole 35 through the fixed column 17 and is fixed on the fixed column 17 by the fixing ring 18, the third fixed block 16 on the fixed column 17 corresponds to the second fixed block 15 in position, the outer wall of one end of the third fixed block 16 provided with the ninth round hole 35 is provided with a seventh round hole 26, the surface of the other end of the third fixed block 16 is provided with first sawteeth 20, at least one first sawteeth 20 are arranged on the third fixed block 16 in sequence, and the first sawteeth 20 on the third fixed block 16 correspond to the second sawteeth 21 on the second fixed block 15 in position.
The connecting wire 28 penetrates through the second round hole 8 on one side of the handle 5 and penetrates out of the eighth round hole 30 on the handle 5, then penetrates through the connecting ring 29 on the fixing column 17 and then penetrates through the eighth round hole 30 on the handle 5 and penetrates out of the second round hole 8 on the other side of the handle 5, the wire 4 penetrates through the first round hole 6 on the first connecting rod 14 and penetrates out of the fifth round hole 24 on the first fixing block 13 through the second connecting rod 33 and the telescopic rod 2, the penetrating part is divided into a first branch wire 27 and a second branch wire 32, the first branch wire 27 penetrates through the seventh round hole 26 on the third fixing block 16 and is connected with the first saw teeth 20, and the second branch wire 32 penetrates through the sixth round hole 25 on the second fixing block 15 and is connected with the second saw teeth 21.
Embodiment 1, it is shown with combination attached figure 1~6 the utility model discloses be equipped with telescopic link 2 on controlling means 1, be equipped with trapping mechanism 3 on telescopic link 2, through stretching out telescopic link 2 on controlling means 1, on trapping mechanism 3 on the telescopic link 2 stretched to survey the electric wire, utilize controlling means 1 control trapping mechanism 3 to carry the electric wire and reach the experimental purpose of mechanical characteristic just can be to high tension switchgear class primary equipment loop resistance on ground.
In addition, the connecting wire 28 penetrates through the second round hole 8 on one side of the handle 5 and penetrates out of the eighth round hole 30 on the handle 5, then passes through the connecting ring 29 on the fixed column 17 and then penetrates through the eighth round hole 30 on the handle 5 and penetrates out of the second round hole 8 on the other side of the handle 5, when the telescopic rod 2 is extended to a required height, two ends of the connecting wire 28 are respectively fixed on the handle 5, the electric wire 4 penetrates through the first round hole 6 on the first connecting rod 14 and passes through the second connecting rod 33 and the telescopic rod 2 and passes through 24 the fifth round hole on the first fixing block 13, the penetrating part is divided into a first branch 27 and a second branch 32, the first branch 27 penetrates through the seventh round hole 26 on the third fixing block 16 and is connected with the first saw teeth 20, the second branch 32 penetrates through the sixth round hole 25 on the second fixing block 15 and is connected with the second saw teeth 21, the first branch 27 is in an elastic, when the second fixing block 15 and the third fixing block 16 are clamped on a measured wire, the handle 5 is held and pulled downwards, the handle 5 moves downwards, the fixing column 17 is pulled by the connecting wire 28 to move downwards, the fixing column 17 moves downwards to drive the third fixing block 16 on the fixing column 17 to move downwards, the third fixing block 16 and the second fixing block 15 clamp the wire, and the first saw teeth 20 of the third fixing block 16 and the second saw teeth 21 on the second fixing block 15 can break open an oxide film on the surface of the wire.
The utility model discloses rational in infrastructure practicality, convenient to carry makes the staff just can carry out the test experiment to eminence loop resistance on ground, and the safety risk falls to minimumly, and test data is accurate, ensures equipment and personnel's safety promptly, can accurately accomplish the relevant experimental work of equipment again.
The invention is not described in detail in the prior art, and although the invention has been specifically shown and described in connection with the preferred embodiments, the method and the way of implementing the technical solution are numerous, and only the preferred embodiments of the invention have been described above, it should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims, which are within the scope of the invention.
Claims (10)
1. The utility model provides a high-tension apparatus test fastener, includes controlling means (1), telescopic link (2) and trapping mechanism (3), characterized by: be equipped with telescopic link (2) on controlling means (1), be equipped with trapping mechanism (3) on telescopic link (2), trapping mechanism (3) are by first fixed block (13), second fixed block (15), third fixed block (16), fixed column (17), gu fixed ring (18) and spring (19) constitute, first fixed block (13) are connected with telescopic link (2), be equipped with second fixed block (15) on first fixed block (13), be equipped with fixed column (17) on second fixed block (15), be equipped with third fixed block (16) on fixed column (17), be equipped with on third fixed block (16) gu fixed ring (18), the cover has spring (19) on fixed column (17) between second fixed block (15) and third fixed block (16).
2. The test wire clamp for the high-voltage equipment according to claim 1, which is characterized in that: the control device (1) is composed of a first connecting rod (14), a second connecting rod (33) and a handle (5), the second connecting rod (33) is arranged on the first connecting rod (14), the handle (5) is arranged on the second connecting rod (33), and the handle (5) is connected with the telescopic rod (2).
3. The test wire clamp for the high-voltage equipment according to claim 2, which is characterized in that: the connecting rod structure is characterized in that the first connecting rod (14) is of a cylindrical or prismatic structure, a second connecting rod (33) is arranged at the middle position of one side of the first connecting rod (14), a first round hole (6) is arranged at the middle position of the other side of the first connecting rod (14), the second connecting rod (33) is perpendicular to the first connecting rod (14), one end of the second connecting rod (33) is connected with the first connecting rod (14), a third round hole (9) is arranged at the other end of the second connecting rod (33), a first internal thread (10) is arranged on the inner wall of the third round hole (9) on the second connecting rod (33), a clamping groove (7) is formed in the middle lower section of the second connecting rod (33), the clamping groove (7) penetrates through the second connecting rod (33), the clamping groove (7) is balanced with the first connecting rod (14), a grab handle (5) is arranged in the clamping groove (7) on the second connecting rod (33), and a telescopic rod (.
4. The test wire clamp for the high-voltage equipment according to claim 2, which is characterized in that: grab handle (5) are parallel with head rod (14), grab handle (5) insert on second connecting rod (33) in draw-in groove (7), the intermediate position of grab handle (5) is equipped with eighth round hole (30), grab handle (5) are located both sides on the outer part of second connecting rod (33) and are equipped with recess (34) of circular arc type respectively, recess (34) are at least one, the orderly range of recess (34) is on grab handle (5), grab handle (5) are being located second connecting rod (33) both sides and are being equipped with second round hole (8) respectively.
5. The test wire clamp for the high-voltage equipment according to claim 1, which is characterized in that: be equipped with first external screw thread (11) on the outer wall of telescopic link (2) one end, first internal thread (10) looks adaptation on first external screw thread (11) on telescopic link (2) and third round hole (9) inner wall on second connecting rod (33) is equipped with second external screw thread (12) on the outer wall of the telescopic link (2) other end, and telescopic link (2) are connected with trapping mechanism (3) in the one end that is equipped with second external screw thread (12).
6. The test wire clamp for the high-voltage equipment according to claim 1, which is characterized in that: one of the first fixing block (13) is provided with a second fixing block (15), the other end of the first fixing block (13) is provided with a fourth round hole (22), the outer wall of one side of the first fixing block (13) is provided with a fifth round hole (24), the inner wall of the fourth round hole (22) on the first fixing block (13) is provided with a second internal thread (23), and the second internal thread (23) on the inner wall of the fourth round hole (22) on the first fixing block (13) is matched with the second external thread (12) on the telescopic rod (2).
7. The test wire clamp for the high-voltage equipment according to claim 1, which is characterized in that: second fixed block (15) are established on first fixed block (13), one of second fixed block (15) and first fixed block (13) connection is served and is equipped with tenth round hole (31), second fixed block (15) are equipped with sixth round hole (25) on the one end outer wall that is equipped with tenth round hole (31), the other end of second fixed block (15) is equipped with second sawtooth (21) on the surface, second sawtooth (21) are at least one, the orderly range of second sawtooth (21) is on second fixed block (15), be equipped with fixed column (17) in tenth round hole (31) on second fixed block (15).
8. The test wire clamp for the high-voltage equipment according to claim 1, which is characterized in that: the fixing column (17) is movably connected with the second fixing block (15), a connecting ring (29) is arranged at the bottom of one end of the fixing column (17) in the second fixing block (15), a third fixing block (16) is arranged at the other end of the fixing column (17), a spring (19) is arranged between the second fixing block (15) and the third fixing block (16), and the spring (19) is sleeved on the fixing column (17).
9. The test wire clamp for the high-voltage equipment according to claim 1, which is characterized in that: the shape of the third fixing block (16) is consistent with that of the second fixing block (15), one end of the third fixing block (16) is provided with a ninth round hole (35), the third fixing block (16) penetrates through the ninth round hole (35) through the fixing column (17) and is fixed on the fixing column (17) by a fixing ring (18), the third fixing block (16) on the fixing column (17) corresponds to the position of the second fixing block (15), the outer wall of one end of the third fixing block (16) provided with the ninth round hole (35) is provided with a seventh round hole (26), the surface of the other end of the third fixing block (16) is provided with first sawteeth (20), at least one first sawteeth (20), the first sawteeth (20) are orderly arranged on the third fixing block (16), and the first sawteeth (20) on the third fixing block (16) correspond to the position of the second sawteeth (21) on the second fixing block (15).
10. The test wire clamp for the high-voltage equipment according to claim 4, which is characterized in that: the grab handle (5) is provided with a connecting wire (28), the connecting wire (28) penetrates through the second round hole (8) on one side of the grab handle (5) and penetrates out of the eighth round hole (30) on the grab handle (5), then, the connecting ring (29) penetrating through the fixing column (17) penetrates through an eighth round hole (30) in the grab handle (5) and penetrates out of a second round hole (8) in the other side of the grab handle (5), the electric wire (4) penetrates through a first round hole (6) in the first connecting rod (14) and penetrates through a fifth round hole (24) in the first fixing block (13) through the second connecting rod (33) and the telescopic rod (2), the penetrating part is divided into a first branch line (27) and a second branch line (32), the first branch line (27) penetrates through a seventh round hole (26) in the third fixing block (16) and is connected with the first sawteeth (20), and the second branch line (32) penetrates through a sixth round hole (25) in the second fixing block (15) and is connected with the second sawteeth (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022043928.1U CN212903863U (en) | 2020-09-17 | 2020-09-17 | Test wire clamp for high-voltage equipment test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022043928.1U CN212903863U (en) | 2020-09-17 | 2020-09-17 | Test wire clamp for high-voltage equipment test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212903863U true CN212903863U (en) | 2021-04-06 |
Family
ID=75258675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022043928.1U Expired - Fee Related CN212903863U (en) | 2020-09-17 | 2020-09-17 | Test wire clamp for high-voltage equipment test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212903863U (en) |
-
2020
- 2020-09-17 CN CN202022043928.1U patent/CN212903863U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210406 |
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| CF01 | Termination of patent right due to non-payment of annual fee |