CN211102751U - General plastic drilling frock of transformer - Google Patents
General plastic drilling frock of transformer Download PDFInfo
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- CN211102751U CN211102751U CN201922009667.9U CN201922009667U CN211102751U CN 211102751 U CN211102751 U CN 211102751U CN 201922009667 U CN201922009667 U CN 201922009667U CN 211102751 U CN211102751 U CN 211102751U
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Abstract
The utility model provides a general plastic drilling frock of transformer that is applied to transformer processing technology field, general plastic drilling frock of transformer on set up panel opening (2) on the frock panel (1), the mounting hole integrated board (3) is connected to frock panel (1) bottom, installation iron core height board (5) are installed to mounting hole integrated board (3) below, set up support slider groove (6) on panel opening (2), support slider groove (6) internal activity clamps support slider (7), support bolt hand wheel (8) is installed on support slider (7), panel opening (2) still set up transformer slider groove (9), transformer slider (12) is installed to transformer slider groove (9) internal card, install transformer hand wheel bolt (13) on transformer slider (12), general plastic drilling frock of transformer, can conveniently and reliably realize the location of transformer and support, ensuring that the drilling holes do not need to be measured again after the transformer is dipped in paint.
Description
Technical Field
The utility model belongs to the technical field of the transformer processing, more specifically say, relate to a general plastic drilling frock of transformer.
Background
Due to the fact that production specifications of transformers are increased, production batches of the transformers are changed, the tolerance range of an iron core is changed, after supports on two sides of the transformers are assembled, a relatively stable reference surface does not exist, mounting holes on the supports of the transformers need to be drilled and tapped after paint dipping, after the supports are assembled with steel strips and fastened, the supports need to be readjusted to reasonable positions, the supports are reassembled and changed once within a small range, the heated deformation of the paint dipping is increased, and each product is possibly different, so that drilling needs to be measured again for each transformer, and rework is possibly needed in some cases. In the transformer in the prior art, two sides of the transformer are fastened by steel belts after being assembled with brackets, and two right-angle sides for fixing the two brackets are used as references, so that the relative positions of the two brackets are adjusted, and smooth processing of mounting holes in the later period is guaranteed. The adjustment after fastening can only be the removal of minim scope at first, and skew that the relative position of iron core and support probably appears and unable adjustment, and the adjustment can only be strikeed the support secondly, lets two supports parallel equal altitude. And after paint dipping, mounting screw holes are machined in the bracket, the hole positions have tolerance, and the consistency difference of the transformer is large due to early adjustment, so that each piece of the mounting screw holes needs to be measured and observed. Thus, the uncertain factors of manufacture are too many, new problems can be generated in each batch, the efficiency is low, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the transformer general shaping and drilling tool is simple in structure, can conveniently and reliably realize positioning of a transformer and a support in the production process of the transformer, ensures that the transformer does not need to be re-measured and re-processed after being dipped in paint, and accordingly improves the processing convenience and the processing efficiency of the transformer.
To solve the technical problem, the utility model discloses the technical scheme who takes does:
the utility model relates to a general plastic drilling frock of transformer, including the frock panel, set up the panel opening on the frock panel, the mounting hole circuit board is connected to frock panel bottom, set up the circuit board opening on the mounting hole circuit board, the high board of installation iron core below the mounting hole circuit board sets up the support take-up housing groove on the panel opening, support take-up housing inslot activity clamps the support slider, the interior installing support bolt hand wheel of screw hole on the support slider, the panel opening still sets up the transformer take-up housing groove, the activity of transformer take-up housing inslot clamps the transformer slider, installation transformer bolt hand wheel in the screw hole on the transformer slider.
The support sliding block groove of the general reshaping and drilling tool for the transformer comprises a support sliding block groove I and a support sliding block groove II, wherein the support sliding block groove I is arranged on one side of the side face of a panel opening part, the support sliding block groove II is arranged on the other side of the side face of the panel opening part, a support sliding block is clamped in the support sliding block groove I, another support sliding block is clamped in the support sliding block groove II, a support clamping block I is connected to one support sliding block, and a support clamping block II is connected to another support sliding block 7.
The transformer sliding block groove comprises a transformer sliding block groove I and a transformer sliding block groove II, the transformer sliding block groove I is arranged at the front position of the opening part of the panel, the transformer sliding block groove II is arranged at the rear position of the opening part of the panel, a transformer sliding block is clamped in the transformer sliding block groove I, a transformer sliding block is clamped in the transformer sliding block groove II, a transformer sliding block I is connected to one transformer sliding block, and a transformer sliding block II is connected to the other transformer sliding block.
A support slider lower extreme is connected with support side station board I, and another support slider lower extreme is connected with support side station board II, and support bolt hand wheel passes the screw hole on support side station board I and the screw hole on support side station board II.
The lower end of a transformer sliding block of the general shaping and drilling tool for the transformer is connected with the transformer station plate I, the lower end of another transformer sliding block of the general shaping and drilling tool for the transformer is connected with the transformer station plate II, and a transformer bolt hand wheel penetrates through a threaded hole in the transformer station plate I and a threaded hole in the transformer station plate II.
A bracket slider and a bracket clamping block I of the general reshaping and drilling tool for the transformer are provided with a bracket isometric cushion block I, and a bracket isometric cushion block II is arranged between the other bracket slider and the bracket clamping block II.
The support bolt hand wheel comprises a support hand wheel part and a support bolt part, and the support bolt part penetrates through a threaded hole in the support side standing plate I and a threaded hole in the support side standing plate II.
The transformer bolt hand wheel comprises a transformer hand wheel part and a transformer bolt part, and the transformer bolt part penetrates through a threaded hole in the transformer station plate I and a threaded hole in the transformer station plate II.
And a bracket side guide shaft is arranged between the bracket side standing plate I and the bracket side standing plate II.
And a transformer side guide shaft is arranged between the transformer station plate I and the transformer station plate II.
Adopt the technical scheme of the utility model, can obtain following beneficial effect:
general plastic drilling frock of transformer, set up the panel opening on the frock panel, the mounting hole integrated board is connected to frock panel bottom, sets up the integrated board opening on the mounting hole integrated board, the high board of installation iron core below the mounting hole integrated board, like this, the frock panel is the board of placing of all spare parts. The mounting hole integrated board is an integrated board of all mounting screw holes of the transformer, a plurality of mounting hole integrated boards can be arranged according to specific conditions, and model marks are made at each hole. The mounting hole integrated board is fixedly connected with the tool panel through a fastener. The iron core height plate is a height adjusting plate of the transformer iron core, and the height difference between the iron core height plate and the mounting hole integrated plate is adjusted by the aid of diagonal screw holes in a tightness mode, so that requirements are met. After the transformer and the bracket are placed on the tooling panel, the bracket bolt handwheel is rotated to drive the bracket sliding block to move in the bracket sliding block groove, the bracket sliding block adjusts the position of the transformer bracket, and the transformer bolt handwheel is rotated to drive the transformer sliding block to move in the transformer sliding block groove, and the transformer sliding block groove pushes the position of the adjusting transformer. Therefore, the relative adjustment of the positions of the bracket and the transformer is realized, and the relative positions of the transformer and the bracket can be accurately adjusted as long as the transformer and the bracket are placed whenever the positions of the transformer and the bracket need to be adjusted. And the drilling is not required to be measured again after the transformer is dipped in paint, and rework is not required, so that the processing convenience and the processing efficiency of the transformer are improved. General plastic drilling frock of transformer, simple structure in transformer production process, can make things convenient for the reliable location that realizes transformer and support, ensure that the transformer need not measure drilling again after the paint dipping, need not rework again to improve transformer processing convenience and machining efficiency, reduce the process circulation simultaneously, reduce the human factor influence, reduce cost.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic view of the overall structure of the universal shaping and drilling tool for transformers according to the present invention;
fig. 2 is an explosion structure diagram of the universal shaping and drilling tool for transformers according to the present invention;
in the drawings, the reference numbers are respectively: 1. a tooling panel; 2. a panel opening part; 3. mounting a hole integration plate; 4. an opening of the integrated board; 5. an iron core height plate; 6. a bracket slider slot; 7. a bracket slider; 8. a bracket bolt handwheel; 9. a transformer slider slot; 12. a transformer slider; 13. a transformer bolt hand wheel; 14. a bracket sliding block groove I; 15. a bracket sliding block groove II; 16. a bracket clamping block I; 17. a bracket clamping block II; 18. a transformer slider slot I; 19. a transformer slider slot II; 20. a transformer push block I; 21. a transformer push block II; 22. a bracket side standing plate I; 23. a bracket side standing plate II; 24. a transformer station plate I; 25. a transformer station board II; 26. the support is provided with a cushion block I with equal length; 27. a support equal-length cushion block II; 28. a bracket hand wheel part; 29. a bracket bolt part; 30. a transformer hand wheel portion; 31. a transformer bolt part; 32. a bracket side guide shaft; 33. the transformer side guides the shaft.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes, structures, mutual positions and connection relations of the components, the functions and operation principles of the components, and the like:
as attached figure 1, as shown in figure 2, the utility model relates to a general plastic drilling frock of transformer, including frock panel 1, set up panel opening 2 on the frock panel 1, mounting hole circuit board 3 is connected to 1 bottom of frock panel, set up circuit board opening 4 on the mounting hole circuit board 3, installation iron core height board 5 below the mounting hole circuit board 3, set up support slider groove 6 on the panel opening 2, support slider groove 6 internalization clamps support slider 7, the interior mounting bracket bolt hand wheel 8 of screw on the support slider 7, panel opening 2 still sets up transformer slider groove 9, transformer slider 12 is clamped to the interior activity of transformer slider groove 9, installation transformer bolt hand wheel 13 in the screw on the transformer slider 12. Above-mentioned structure sets up panel opening 2 on the frock panel 1, and mounting hole circuit board 3 is connected to frock panel 1 bottom, sets up circuit board opening 4 on the mounting hole circuit board 3, and the high board 5 of iron core is installed to 3 below mounting hole circuit boards, and like this, frock panel 1 is the board of placing of all spare parts. The mounting hole integrated board is an integrated board of all mounting screw holes of the transformer, a plurality of mounting hole integrated boards can be arranged according to specific conditions, and model marks are made at each hole. The mounting hole integrated plate is fixedly connected with the tool panel 1 through a fastener. The iron core height plate is a height adjusting plate of the transformer iron core, and the height difference between the iron core height plate and the mounting hole integrated plate is adjusted by the aid of diagonal screw holes in a tightness mode, so that requirements are met. After the transformer and the bracket are placed on the tooling panel 1, the bracket bolt handwheel 8 is rotated to drive the bracket sliding block 7 to move in the bracket sliding block groove 6, the bracket sliding block adjusts the position of the transformer bracket, and the transformer bolt handwheel 13 is rotated to drive the transformer sliding block 12 to move in the transformer sliding block groove 9, and the transformer sliding block groove 9 pushes and adjusts the position of the transformer. Therefore, the relative adjustment of the positions of the bracket and the transformer is realized, and the relative positions of the transformer and the bracket can be accurately adjusted as long as the transformer and the bracket are placed whenever the positions of the transformer and the bracket need to be adjusted. And the drilling is not required to be measured again after the transformer is dipped in paint, and rework is not required, so that the processing convenience and the processing efficiency of the transformer are improved. General plastic drilling frock of transformer, simple structure in transformer production process, can make things convenient for the reliable location that realizes transformer and support, ensure that the transformer need not measure drilling again after the paint dipping, need not rework again to improve transformer processing convenience and machining efficiency, reduce the process circulation simultaneously.
The support slider groove 6 of the general plastic drilling tool for the transformer comprises a support slider groove I14 and a support slider groove II 15, the support slider groove I14 is arranged on one side of the side face of a panel opening part 2, the support slider groove II 15 is arranged on the other side of the side face of the panel opening part 2, a support slider 7 is clamped in the support slider groove I14, another support slider 7 is clamped in the support slider groove II 15, a support slider 7 is connected with a support clamping block I16, and another support slider 7 is connected with a support clamping block II 17. Above-mentioned structure, through rotating support bolt hand wheel 8, support bolt hand wheel 8 can drive every support slider 7 and remove in respective support slider groove 6 for two support sliders can work under the state of being close to each other or keeping away from each other. When the bracket bolt hand wheel is rotated to drive the two bracket sliding blocks to move towards the mutual approaching direction, the clamping and the positioning of the transformer bracket on the tool panel can be realized, and then the adjustment of the transformer is realized by matching the rotation of the transformer bolt hand wheel 13, so that the relative position of the transformer and the bracket is reliably shaped and adjusted, and the subsequent drilling operation is convenient. Therefore, the operation is simple, the adjustment reliability is high, and the tolerance is reduced.
The transformer sliding block groove 9 comprises a transformer sliding block groove I18 and a transformer sliding block groove II 19, the transformer sliding block groove I18 is arranged at the front position of the panel opening part 2, the transformer sliding block groove II 19 is arranged at the rear position of the panel opening part 2, a transformer sliding block 12 is clamped in the transformer sliding block groove I18, a transformer sliding block 12 is clamped in the transformer sliding block groove II 19, a transformer sliding block I20 is connected to one transformer sliding block 12, and a transformer sliding block II 21 is connected to the other transformer sliding block 12. In the structure, by rotating the transformer bolt handwheel 13, the transformer bolt handwheel 13 can drive each transformer slide block to move in the respective transformer slide block slot, so that the two transformer slide blocks can work in a state of being close to or far away from each other. When the transformer bolt hand wheel 13 is rotated to drive the two transformer sliding blocks to move towards the mutual approaching direction, the clamping and the positioning of the transformer on the tool panel can be realized, and then the support is adjusted by matching the rotation of the support bolt hand wheel 8, so that the relative positions of the transformer and the support are reliably shaped and adjusted, and the subsequent drilling operation is facilitated. Therefore, the operation is simple, and the adjustment reliability is high.
The lower end of one support sliding block 7 is connected with a support side standing plate I22, the lower end of the other support sliding block 7 is connected with a support side standing plate II 23, and a support bolt hand wheel 8 penetrates through a threaded hole in the support side standing plate I22 and a threaded hole in the support side standing plate II 23. The lower end of one transformer sliding block 12 of the general shaping and drilling tool for the transformer is connected with a transformer station plate I24, the lower end of the other transformer sliding block 12 of the general shaping and drilling tool for the transformer is connected with a transformer station plate II 25, and a transformer bolt hand wheel 13 penetrates through a threaded hole in the transformer station plate I24 and a threaded hole in the transformer station plate II 25. Above-mentioned structure, every support slider and a support side station board fixed connection, and support bolt hand wheel 8 passes through the bolt screw mode with every support side station board and is connected, rotate support bolt hand wheel 8, just can realize the synchronous change of two support side station board relative positions, thereby it presss from both sides tight piece clamp positioning support (transformer support) to drive two supports, and every transformer slider and a transformer side station board fixed connection, and transformer bolt hand wheel 13 passes through the bolt screw mode with every transformer side station board and is connected, rotate transformer bolt hand wheel 8, just can realize the synchronous change of two transformer side station board relative positions, thereby it presss from both sides tight piece clamp positioning transformer to drive two transformers. And the bracket bolt hand wheel and the transformer bolt hand wheel are both indirectly connected with the tool panel, so that the relative positions of the bracket clamping block and the transformer clamping block during movement and adjustment are restricted. Therefore, the bracket clamping block can adjust the position of the bracket, and when the transformer clamping block adjusts the position of the transformer, the relative position of the bracket and the transformer can be adjusted to a determined corresponding position every time. Like this, after the transformer dip coating, need not measure drilling again, only need place plastic drilling frock with transformer and support on, just can conveniently realize confirming again of the relative position of support and transformer to can reliably drill, need not rework again, improve transformer processing convenience and machining efficiency, reduce operating personnel intensity of labour.
A bracket isometric cushion block I26 is arranged between one bracket sliding block 7 and the bracket clamping block I16, and a bracket isometric cushion block II 27 is arranged between the other bracket sliding block 7 and the bracket clamping block II 17. According to the structure, the equal-length cushion blocks of the support are arranged, if the transformer is too large or too small in size, the equal-length cushion blocks of the support with different sizes can be replaced, so that the positioning adjustment of the transformer and the support with different sizes is met, and the universality of the tool is improved.
The support bolt hand wheel 8 comprises a support hand wheel part 28 and a support bolt part 29, and the support bolt part 29 penetrates through a threaded hole in the support side standing plate I22 and a threaded hole in the support side standing plate II 23. Above-mentioned structure, support hand wheel portion is used for operating personnel application of force to rotate, and support bolt portion is connected respectively with support side board I22 and support side board II 23 of standing, is convenient for rotate the adjusting position.
The transformer bolt hand wheel 13 comprises a transformer hand wheel part 30 and a transformer bolt part 31, and the transformer bolt part 31 penetrates through a threaded hole in the transformer station plate I24 and a threaded hole in the transformer station plate II 25. The transformer hand wheel part is used for an operator to apply force to rotate, and the transformer bolt part is connected with the transformer side station plate I and the transformer side station plate II respectively, so that the position can be adjusted conveniently.
And a bracket side guide shaft 32 is arranged between the bracket side standing plate I22 and the bracket side standing plate II 23. By the structure, the support side guide shafts reliably position and guide the positions of the two support side standing plates when the two support side standing plates move, so that the two support side standing plates are prevented from being misplaced when moving, and the operation reliability is improved.
A transformer side guide shaft 33 is arranged between the transformer station plate I24 and the transformer station plate II 25, so that dislocation of the transformer station plate I and the transformer station plate II when the transformer station plate I and the transformer station plate II move is avoided. By the structure, the bracket side guide shafts can reliably position and guide the positions of the two bracket side standing plates when the two bracket side standing plates move, so that the operation reliability is improved.
General plastic drilling frock of transformer, set up the panel opening on the frock panel, the mounting hole integrated board is connected to frock panel bottom, sets up the integrated board opening on the mounting hole integrated board, the high board of installation iron core below the mounting hole integrated board, like this, the frock panel is the board of placing of all spare parts. The mounting hole integrated board is an integrated board of all mounting screw holes of the transformer, a plurality of mounting hole integrated boards can be arranged according to specific conditions, and model marks are made at each hole. The mounting hole integrated board is fixedly connected with the tool panel through a fastener. The iron core height plate is a height adjusting plate of the transformer iron core, and the height difference between the iron core height plate and the mounting hole integrated plate is adjusted by the aid of diagonal screw holes in a tightness mode, so that requirements are met. After the transformer and the bracket are placed on the tooling panel, the bracket bolt handwheel is rotated to drive the bracket sliding block to move in the bracket sliding block groove, the bracket sliding block adjusts the position of the transformer bracket, and the transformer bolt handwheel is rotated to drive the transformer sliding block to move in the transformer sliding block groove, and the transformer sliding block groove pushes the position of the adjusting transformer. Therefore, the relative adjustment of the positions of the bracket and the transformer is realized, and the relative positions of the transformer and the bracket can be accurately adjusted as long as the transformer and the bracket are placed whenever the positions of the transformer and the bracket need to be adjusted. And the drilling is not required to be measured again after the transformer is dipped in paint, and rework is not required, so that the processing convenience and the processing efficiency of the transformer are improved. General plastic drilling frock of transformer, simple structure in transformer production process, can make things convenient for the reliable location that realizes transformer and support, ensure that the transformer need not measure drilling again after the paint dipping, need not rework again to improve transformer processing convenience and machining efficiency, reduce the process circulation simultaneously, reduce the human factor influence, reduce cost.
The present invention has been described in detail with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the present invention can be implemented in various ways without modification, and the present invention is not limited by the above embodiments.
Claims (10)
1. The utility model provides a general plastic drilling frock of transformer which characterized in that: the tooling comprises a tooling panel (1), a panel opening part (2) is arranged on the tooling panel (1), a mounting hole integrated board (3) is connected to the bottom of the tooling panel (1), an integrated board opening part (4) is arranged on the mounting hole integrated board (3), an iron core height board (5) is installed below the mounting hole integrated board (3), a support slider groove (6) is arranged on the panel opening part (2), a support slider (7) is clamped in the support slider groove (6) in an internal activity manner, a support bolt hand wheel (8) is installed in a screw hole on the support slider (7), a transformer slider groove (9) is further arranged in the panel opening part (2), a transformer slider (12) is clamped in the transformer slider groove (9) in an internal activity manner, and a transformer hand wheel (13) is installed in the screw hole on the transformer.
2. The general plastic drilling frock of transformer of claim 1, characterized in that: the support sliding block groove (6) of the general shaping and drilling tool for the transformer comprises a support sliding block groove I (14) and a support sliding block groove II (15), the side face of a panel opening part (2) is provided with the support sliding block groove I (14), the side face of the panel opening part (2) is provided with the support sliding block groove II (15), a support sliding block (7) is clamped in the support sliding block groove I (14), another support sliding block (7) is clamped in the support sliding block groove II (15), one support sliding block (7) is connected with a support clamping block I (16), and another support sliding block (7) is connected with a support clamping block II (17).
3. The general plastic drilling frock of transformer of claim 1, characterized in that: the transformer sliding block groove (9) comprises a transformer sliding block groove I (18) and a transformer sliding block groove II (19), the front position of a panel opening part (2) is provided with the transformer sliding block groove I (18), the rear position of the panel opening part (2) is provided with the transformer sliding block groove II (19), a transformer sliding block (12) is clamped in the transformer sliding block groove I (18), a transformer sliding block (12) is clamped in the transformer sliding block groove II (19), one transformer sliding block (12) is connected with a transformer push block I (20), and the other transformer sliding block (12) is connected with a transformer push block II (21).
4. The general plastic drilling frock of transformer of claim 2, characterized in that: the lower end of one support sliding block (7) is connected with a support side standing plate I (22), the lower end of the other support sliding block (7) is connected with a support side standing plate II (23), and a support bolt hand wheel (8) penetrates through a threaded hole in the support side standing plate I (22) and a threaded hole in the support side standing plate II (23).
5. The general plastic drilling frock of transformer of claim 3, characterized in that: the lower end of one transformer sliding block (12) of the transformer general shaping and drilling tool is connected with a transformer station plate I (24), the lower end of the other transformer sliding block (12) of the transformer general shaping and drilling tool is connected with a transformer station plate II (25), and a transformer bolt hand wheel (13) penetrates through a threaded hole in the transformer station plate I (24) and a threaded hole in the transformer station plate II (25).
6. The general plastic drilling frock of transformer of claim 2, characterized in that: a bracket slider (7) and a bracket clamping block I (16) of the universal shaping and drilling tool for the transformer are provided with a bracket isometric cushion block I (26), and a bracket isometric cushion block II (27) is arranged between the other bracket slider (7) and a bracket clamping block II (17).
7. The general plastic drilling frock of transformer of claim 4, characterized in that: the support bolt hand wheel (8) comprises a support hand wheel part (28) and a support bolt part (29), and the support bolt part (29) penetrates through a threaded hole in the support side standing plate I (22) and a threaded hole in the support side standing plate II (23).
8. The general plastic drilling frock of transformer of claim 5, characterized in that: the transformer bolt hand wheel (13) comprises a transformer hand wheel part (30) and a transformer bolt part (31), and the transformer bolt part (31) penetrates through a threaded hole in the transformer station plate I (24) and a threaded hole in the transformer station plate II (25).
9. The general plastic drilling frock of transformer of claim 4, characterized in that: and a bracket side guide shaft (32) is arranged between the bracket side standing plate I (22) and the bracket side standing plate II (23).
10. The general plastic drilling frock of transformer of claim 5, characterized in that: and a transformer side guide shaft (33) is arranged between the transformer station plate I (24) and the transformer station plate II (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009667.9U CN211102751U (en) | 2019-11-20 | 2019-11-20 | General plastic drilling frock of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922009667.9U CN211102751U (en) | 2019-11-20 | 2019-11-20 | General plastic drilling frock of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211102751U true CN211102751U (en) | 2020-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922009667.9U Active CN211102751U (en) | 2019-11-20 | 2019-11-20 | General plastic drilling frock of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211102751U (en) |
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2019
- 2019-11-20 CN CN201922009667.9U patent/CN211102751U/en active Active
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