CN113192699A - Five metals is cable metal wire stranding device for alternating current - Google Patents
Five metals is cable metal wire stranding device for alternating current Download PDFInfo
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- CN113192699A CN113192699A CN202110482423.1A CN202110482423A CN113192699A CN 113192699 A CN113192699 A CN 113192699A CN 202110482423 A CN202110482423 A CN 202110482423A CN 113192699 A CN113192699 A CN 113192699A
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- fixedly connected
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- metal wire
- stranding device
- centrifugal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
- H01B13/0207—Details; Auxiliary devices
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Abstract
The invention relates to the technical field of hardware power distribution, and discloses a cable metal wire stranding device for hardware power distribution. This five metals is cable metal wire stranding device for alternating current, drive the motion of centrifugation piece through the pivot, centrifugation piece drives the motion of dielectric medium board, the cooperation of rethread piezoresistor and actuating lever is used, thereby reach and consolidate the effect that the reduction rocked to the wire, because the motion of centrifugation piece, thereby make dielectric medium board take place certain offset, the relative area of negative plate and positive plate reaches the minimum this moment, thereby make the terminal voltage of negative plate minimum, consequently, piezoresistor's minimum access voltage has been satisfied, thereby make the actuating lever rotate and come the telescopic link to extrude downwards and consolidate the wire.
Description
Technical Field
The invention relates to the technical field of hardware power distribution, in particular to a metal wire stranding device for a cable for hardware power distribution.
Background
The hardware of modern society indicates comparatively extensively, such as hardware and tools, hardware spare part, daily hardware, building hardware and relevant electronic product accessory etc. and our life does not leave the five metals work piece, and it can the exclusive use, also can do the assistance utensil, but the five metals product that we saw all comes into market to use after the processing of various manufacturing process, and wherein the cable is usually twisted into the wire electricity core of various specification cross-sections and different types of wire and cable with two kinds of material copper, aluminium.
People need carry out stranded conductor work to the cable conductor in the production process of cable conductor, but traditional stranded conductor device when carrying out the stranded conductor to the cable, because the stranding device makes the wire appear rocking easily when rotating, if when the stall operation appears in the operation of stranding device to make the cable match the deviation, thereby make the cable behind the stranded conductor become flexible easily and appear the quality that the skew influences finished product wire.
Therefore, we propose a metal wire stranding device for a cable for hardware power distribution to solve the above problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a metal wire stranding device for a hardware cable for alternating current, which has the advantages of being simple to operate and capable of preventing the wire from shifting and automatically fastening due to shaking in the wire stranding process, and solves the problem that the traditional stranding device is prone to shaking the wire when rotating, so that the matching of the cable is deviated.
II) technical scheme
In order to realize the purposes of simple operation and automatic fastening of deviation caused by shaking in the process of twisting the lead, the invention provides the following technical scheme: the utility model provides a five metals for alternating current cable metal wire stranding device, includes the pivot, the shell has been cup jointed in the pivot outside, and shell middle part inner wall swing joint has speed limiting mechanism, and pivot middle part inner wall swing joint has trigger mechanism, and pivot middle part inner wall fixedly connected with prevents inclined to one side mechanism.
Further, the shell includes the speed reduction piece, speed reduction piece middle part inner wall fixedly connected with magnetic path, shell middle part inner wall fixedly connected with electromagnet, speed reduction piece outside fixedly connected with reset spring one, produce magnetic field after the electromagnet circular telegram and make the magnetic path receive repulsive force and drive the speed reduction piece and move to the inboard and with the laminating production friction in the pivot outside and reduce the rotational speed of pivot.
Furthermore, the size of the magnetic block is smaller than that of the speed reduction piece, and the magnetism of the outer side of the return spring is the same as that of the inner side of the electromagnet.
Further, trigger mechanism includes the centrifugation groove, centrifugation groove middle part inner wall fixedly connected with stationary contact, centrifugation groove middle part inner wall swing joint has centrifugal piece, and centrifugation piece middle part inner wall fixedly connected with dielectric medium plate, the centrifugation piece outside fixedly connected with lead electrical pillar, the inboard fixedly connected with reset spring two of centrifugal piece, pivot middle part inner wall fixedly connected with negative plate, pivot middle part inner wall fixedly connected with piezo-resistor, pivot middle part inner wall fixedly connected with positive plate.
Furthermore, the size of the centrifugal block is matched with the centrifugal groove, the length of the second reset spring is smaller than that of the centrifugal block, the inner side of the second reset spring is fixedly connected with the inner wall of the centrifugal groove, and the rotating shaft rotates to enable the centrifugal block to be subjected to centrifugal force to move along the inner wall of the centrifugal groove to drive the dielectric plate to move, so that the relative area of the negative plate and the positive plate is changed.
Further, the negative plate size is the same with the positive plate size, and piezo-resistor and negative plate electric connection, the negative plate size are less than the dielectric plate size, and the negative plate is parallel to each other with the positive plate, realizes changing the terminal voltage of negative plate through the relative area who changes negative plate and positive plate to the operating condition that the piezo-resistor was triggered in the realization.
Further, prevent inclined to one side mechanism including the drive axle bed, drive axle bed middle part inner wall swing joint has the gear, the lug has been seted up to the gear inboard, drive axle bed middle part inner wall fixedly connected with wire outgoing tube, wire outgoing tube middle part inner wall swing joint has the telescopic link, the inboard fixedly connected with electro-rheological fluids bag of telescopic link, the meshing of the gear outside has the actuating lever, thereby the gear clockwise rotation drives the lug rotation under the rotation of actuating lever and rotates and make electro-rheological fluids bag and wire contact and further prevent that it from producing and rock.
Furthermore, the size of the wire outlet cylinder is smaller than that of the gear, and the back of the driving rod is fixedly connected with the front of the driving shaft seat.
(III) advantageous effects
Compared with the prior art, the invention provides a metal wire stranding device for a hardware cable for alternating current, which has the following beneficial effects:
1. this five metals is cable metal wire stranding device for alternating current, drive the motion of centrifugation piece through the pivot, centrifugation piece drives the motion of dielectric medium board, the cooperation of rethread piezoresistor and actuating lever is used, thereby reach and consolidate the effect that the reduction rocked to the wire, because the motion of centrifugation piece, thereby make dielectric medium board take place certain offset, the relative area of negative plate and positive plate reaches the minimum this moment, thereby make the terminal voltage of negative plate minimum, consequently, piezoresistor's minimum access voltage has been satisfied, thereby make the actuating lever rotate and come the telescopic link to extrude downwards and consolidate the wire.
2. The metal wire stranding device for the hardware cable for alternating current is characterized in that the centrifugal block drives the conductive column to move, the conductive column drives the static contact to operate, and then the electromagnet is matched with the speed reduction sheet to use, so that the effect of reducing the rotating speed of the rotating shaft by limitation protection is achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partially enlarged view of the portion A of FIG. 1 according to the present invention;
FIG. 3 is a partially enlarged view of the portion B shown in FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the anti-deflection mechanism of the present invention.
In the figure: 1. a rotating shaft; 2. a housing; 3. a speed limiting mechanism; 4. a trigger mechanism; 5. a deviation prevention mechanism; 31. a deceleration sheet; 32. a first return spring; 33. a magnetic block; 34. an electromagnet; 41. a negative plate; 42. a voltage dependent resistor; 43. a second return spring; 44. a dielectric plate; 45. a positive plate; 46. a conductive post; 47. a centrifugal tank; 48. a stationary contact; 49. a centrifugal block; 51. a gear; 52. a bump; 53. a telescopic rod; 54. a drive rod; 55. electro-rheological fluid bag; 56. an outlet barrel; 57. a driving shaft seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 and 2, a hardware cable metal wire stranding device for alternating current comprises a rotating shaft 1, a shell 2 is sleeved outside the rotating shaft 1, a speed limiting mechanism 3 is movably connected to the inner wall of the middle of the shell 2, a trigger mechanism 4 is movably connected to the inner wall of the middle of the rotating shaft 1, and an anti-deviation mechanism 5 is fixedly connected to the inner wall of the middle of the rotating shaft 1.
Further, the shell 2 comprises a speed reducing piece 31, a magnetic block 33 is fixedly connected to the inner wall of the middle of the speed reducing piece 31, the size of the magnetic block 33 is smaller than that of the speed reducing piece 31, the magnetism of the outer side of a first reset spring 32 is the same as that of the inner side of an electromagnet 34, the inner wall of the middle of the shell 2 is fixedly connected with the electromagnet 34, the outer side of the speed reducing piece 31 is fixedly connected with a first reset spring 32, and after the electromagnet 34 is electrified, a magnetic field is generated to enable the magnetic block 33 to be subjected to repulsive force to drive the speed reducing piece 31 to move inwards and be attached to the outer side of the rotating shaft 1 to generate friction so as to reduce the rotating speed of the rotating shaft 1.
Example two:
referring to fig. 1 and 3, a hardware cable metal wire stranding device for alternating current comprises a rotating shaft 1, a shell 2 is sleeved outside the rotating shaft 1, the inner wall of the middle of the shell 2 is movably connected with a speed limiting mechanism 3, the inner wall of the middle of the rotating shaft 1 is movably connected with a trigger mechanism 4, and the inner wall of the middle of the rotating shaft 1 is fixedly connected with an anti-deviation mechanism 5.
Further, the trigger mechanism 4 includes a centrifugal groove 47, a stationary contact 48 is fixedly connected to the inner wall of the middle portion of the centrifugal groove 47, a centrifugal block 49 is movably connected to the inner wall of the middle portion of the centrifugal groove 47, the size of the centrifugal block 49 is matched with the centrifugal groove 47, the length of the second return spring 43 is smaller than the length of the centrifugal block 49, the inner side of the second return spring 43 is fixedly connected to the inner wall of the centrifugal groove 47, the rotating shaft 1 rotates to enable the centrifugal block 49 to be subjected to centrifugal force to movably drive the dielectric plate 44 to move along the inner wall of the centrifugal groove 47, so that the relative area of the negative plate 41 and the positive plate 45 is changed, the inner wall of the middle portion of the centrifugal block 49 is fixedly connected to a dielectric plate 44, the outer side of the centrifugal block 49 is fixedly connected to a conductive column 46, and the inner side of the centrifugal block 49 is fixedly connected to a second return spring 43;
inner wall fixedly connected with negative plate 41 in the middle part of pivot 1, the size of negative plate 41 is the same with the size of positive plate 45, piezo-resistor 42 and 41 electric connection of negative plate, the size of negative plate 41 is less than the size of dielectric plate 44, negative plate 41 is parallel to each other with positive plate 45, realize changing the terminal voltage of negative plate 41 through the relative area who changes negative plate 41 and positive plate 45, thereby realize triggering piezo-resistor 42's operating condition, pivot 1 middle part inner wall fixedly connected with piezo-resistor 42, pivot 1 middle part inner wall fixedly connected with positive plate 45.
Example three:
referring to fig. 1 and 4, a hardware cable metal wire stranding device for alternating current comprises a rotating shaft 1, a shell 2 is sleeved outside the rotating shaft 1, the inner wall of the middle of the shell 2 is movably connected with a speed limiting mechanism 3, the inner wall of the middle of the rotating shaft 1 is movably connected with a trigger mechanism 4, and the inner wall of the middle of the rotating shaft 1 is fixedly connected with an anti-deviation mechanism 5.
Further, prevent inclined to one side mechanism 5 including drive axle bed 57, drive axle bed 57 middle part inner wall swing joint has gear 51, lug 52 has been seted up to gear 51 inboard, drive axle bed 57 middle part inner wall fixedly connected with outlet cylinder 56, outlet cylinder 56's size is less than gear 51's size, the drive rod 54 back and the positive fixed connection of drive axle bed 57, outlet cylinder 56 middle part inner wall swing joint has telescopic link 53, the inboard fixedly connected with electrorheological fluids bag 55 of telescopic link 53, the meshing has drive rod 54 in the gear 51 outside, gear 51 clockwise rotation and drive lug 52 rotate under the rotation of drive rod 54 and follow and extrude telescopic link 53 thereby make electrorheological fluids bag 55 and wire contact and further prevent that it from producing and rocking.
Example four:
referring to fig. 1-4, a metal wire stranding device for a hardware cable for alternating current comprises a rotating shaft 1, a housing 2 is sleeved outside the rotating shaft 1, a speed limiting mechanism 3 is movably connected to the inner wall of the middle of the housing 2, a trigger mechanism 4 is movably connected to the inner wall of the middle of the rotating shaft 1, and an anti-deviation mechanism 5 is fixedly connected to the inner wall of the middle of the rotating shaft 1.
Further, the shell 2 comprises a speed reducing piece 31, a magnetic block 33 is fixedly connected to the inner wall of the middle of the speed reducing piece 31, the size of the magnetic block 33 is smaller than that of the speed reducing piece 31, the magnetism of the outer side of a first reset spring 32 is the same as that of the inner side of an electromagnet 34, the inner wall of the middle of the shell 2 is fixedly connected with the electromagnet 34, the outer side of the speed reducing piece 31 is fixedly connected with a first reset spring 32, and after the electromagnet 34 is electrified, a magnetic field is generated to enable the magnetic block 33 to be subjected to repulsive force to drive the speed reducing piece 31 to move inwards and be attached to the outer side of the rotating shaft 1 to generate friction so as to reduce the rotating speed of the rotating shaft 1.
Further, the trigger mechanism 4 includes a centrifugal groove 47, a stationary contact 48 is fixedly connected to the inner wall of the middle portion of the centrifugal groove 47, a centrifugal block 49 is movably connected to the inner wall of the middle portion of the centrifugal groove 47, the size of the centrifugal block 49 is matched with the centrifugal groove 47, the length of the second return spring 43 is smaller than the length of the centrifugal block 49, the inner side of the second return spring 43 is fixedly connected to the inner wall of the centrifugal groove 47, the rotating shaft 1 rotates to enable the centrifugal block 49 to be subjected to centrifugal force to movably drive the dielectric plate 44 to move along the inner wall of the centrifugal groove 47, so that the relative area of the negative plate 41 and the positive plate 45 is changed, the inner wall of the middle portion of the centrifugal block 49 is fixedly connected to a dielectric plate 44, the outer side of the centrifugal block 49 is fixedly connected to a conductive column 46, and the inner side of the centrifugal block 49 is fixedly connected to a second return spring 43;
inner wall fixedly connected with negative plate 41 in the middle part of pivot 1, the size of negative plate 41 is the same with the size of positive plate 45, piezo-resistor 42 and 41 electric connection of negative plate, the size of negative plate 41 is less than the size of dielectric plate 44, negative plate 41 is parallel to each other with positive plate 45, realize changing the terminal voltage of negative plate 41 through the relative area who changes negative plate 41 and positive plate 45, thereby realize triggering piezo-resistor 42's operating condition, pivot 1 middle part inner wall fixedly connected with piezo-resistor 42, pivot 1 middle part inner wall fixedly connected with positive plate 45.
Further, prevent inclined to one side mechanism 5 including drive axle bed 57, drive axle bed 57 middle part inner wall swing joint has gear 51, lug 52 has been seted up to gear 51 inboard, drive axle bed 57 middle part inner wall fixedly connected with outlet cylinder 56, outlet cylinder 56's size is less than gear 51's size, the drive rod 54 back and the positive fixed connection of drive axle bed 57, outlet cylinder 56 middle part inner wall swing joint has telescopic link 53, the inboard fixedly connected with electrorheological fluids bag 55 of telescopic link 53, the meshing has drive rod 54 in the gear 51 outside, gear 51 clockwise rotation and drive lug 52 rotate under the rotation of drive rod 54 and follow and extrude telescopic link 53 thereby make electrorheological fluids bag 55 and wire contact and further prevent that it from producing and rocking.
The working principle is as follows: when the cable is twisted, the rotating shaft 1 is driven by external equipment, at the moment, the rotating shaft 1 rotates at a constant speed, the centrifugal block 49 is rotated outwards by the centrifugal force due to the rotation of the rotating shaft 1, at the moment, the centrifugal block 49 is always in a balance position due to the traction of the second return spring 43, the movement of the eccentric block 49 causes a certain displacement of the dielectric plate 44, at which the relative area of the negative and positive plates 41 and 45 is minimized, so that the voltage at the end of the negative electrode plate 41 is minimized, and thus the minimum path voltage of the varistor 42 is satisfied, so that the driving rod 54 rotates, the driving rod 54 drives the gear 51 to rotate counterclockwise, so that the projection 52 extrudes the telescopic rod 53, so that the electrorheological fluid bag 55 is attached to the cable to be stranded, and the cable is fixed to prevent dislocation caused by shaking in the stranding process;
in order to ensure that the twisting force is overlarge to cause dislocation and shaking of the cable when the rotating shaft 1 does not run at an overspeed to cause the excessive twisting force, when the rotating shaft 1 exceeds a preset constant speed, the centrifugal force applied to the centrifugal block 49 is greater than the traction force of the second return spring 43, so that the conductive post 46 is electrically contacted with the stationary contact 48, the electromagnet 34 on the inner wall of the middle part of the shell 2 is electrified, the electromagnet 34 generates a magnetic field to enable the magnetic block 33 to be subjected to the repulsive force to drive the speed reduction piece 31 to move inwards and be attached to the outer side of the rotating shaft 1, friction is generated to reduce the rotating speed of the rotating shaft 1, and the purpose of protecting the cable in twisting to prevent the twisting from being disordered to influence the quality of the finished cable is achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a five metals is cable wire stranding device for alternating current, includes pivot (1), its characterized in that: the outer side of the rotating shaft (1) is sleeved with the shell (2), the inner wall of the middle part of the shell (2) is movably connected with the speed limiting mechanism (3), the inner wall of the middle part of the rotating shaft (1) is movably connected with the triggering mechanism (4), and the inner wall of the middle part of the rotating shaft (1) is fixedly connected with the deviation preventing mechanism (5).
2. The hardware power cable metal wire stranding device according to claim 1, characterized in that: the shell (2) comprises a speed reduction piece (31), a magnetic block (33) is fixedly connected to the inner wall of the middle of the speed reduction piece (31), an electromagnet (34) is fixedly connected to the inner wall of the middle of the shell (2), and a first reset spring (32) is fixedly connected to the outer side of the speed reduction piece (31).
3. The hardware power cable metal wire stranding device according to claim 2, characterized in that: the size of the magnetic block (33) is smaller than that of the speed reduction piece (31), and the magnetism of the outer side of the first return spring (32) is the same as that of the inner side of the electromagnet (34).
4. The hardware power cable metal wire stranding device according to claim 1, characterized in that: trigger mechanism (4) are including centrifugation groove (47), centrifugation groove (47) middle part inner wall fixedly connected with stationary contact (48), centrifugation groove (47) middle part inner wall swing joint has centrifugal piece (49), centrifugal piece (49) middle part inner wall fixedly connected with dielectric plate (44), centrifugal piece (49) outside fixedly connected with leads electrical pillar (46), the inboard fixedly connected with reset spring two (43) of centrifugation piece (49), pivot (1) middle part inner wall fixedly connected with negative plate (41), pivot (1) middle part inner wall fixedly connected with piezo-resistor (42), pivot (1) middle part inner wall fixedly connected with positive plate (45).
5. The hardware power cable metal wire stranding device according to claim 4, characterized in that: the size of the centrifugal block (49) is matched with that of the centrifugal groove (47), the length of the second return spring (43) is smaller than that of the centrifugal block (49), and the inner side of the second return spring (43) is fixedly connected with the inner wall of the centrifugal groove (47).
6. The hardware power cable metal wire stranding device according to claim 4, characterized in that: the size of the negative plate (41) is the same as that of the positive plate (45), the piezoresistor (42) is electrically connected with the negative plate (41), the size of the negative plate (41) is smaller than that of the dielectric plate (44), and the negative plate (41) and the positive plate (45) are parallel to each other.
7. The hardware power cable metal wire stranding device according to claim 1, characterized in that: prevent inclined to one side mechanism (5) including drive axle bed (57), drive axle bed (57) middle part inner wall swing joint has gear (51), and lug (52) have been seted up to gear (51) inboard, and drive axle bed (57) middle part inner wall fixedly connected with outlet tube (56), outlet tube (56) middle part inner wall swing joint has telescopic link (53), and telescopic link (53) inboard fixedly connected with electrorheological fluids bag (55), gear (51) outside meshing has actuating lever (54).
8. The hardware power cable metal wire stranding device according to claim 7, characterized in that: the size of the outlet cylinder (56) is smaller than that of the gear (51), and the back of the driving rod (54) is fixedly connected with the front of the driving shaft seat (57).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110482423.1A CN113192699A (en) | 2021-04-30 | 2021-04-30 | Five metals is cable metal wire stranding device for alternating current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110482423.1A CN113192699A (en) | 2021-04-30 | 2021-04-30 | Five metals is cable metal wire stranding device for alternating current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113192699A true CN113192699A (en) | 2021-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110482423.1A Withdrawn CN113192699A (en) | 2021-04-30 | 2021-04-30 | Five metals is cable metal wire stranding device for alternating current |
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| CN (1) | CN113192699A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9917735D0 (en) * | 1999-07-28 | 1999-09-29 | Youngflex Ag | Drive mechanism for a actuating cable |
| CN107316714A (en) * | 2017-07-04 | 2017-11-03 | 巢湖市金业电工机械有限公司 | A kind of cage winch stranded wire apparatus with protection mechanism |
| CN107749326A (en) * | 2017-10-17 | 2018-03-02 | 安徽电信器材贸易工业有限责任公司 | A kind of stranded wire apparatus |
| CN210245159U (en) * | 2019-08-13 | 2020-04-03 | 天津威利安电工器材有限公司 | Enameled stranded wire production stranded conductor device |
| CN112173873A (en) * | 2020-10-26 | 2021-01-05 | 广州安华网络科技有限公司 | Protection device for winding drum stalling during computer network cable winding |
| CN112421868A (en) * | 2020-11-24 | 2021-02-26 | 温桂连 | Device with overspeed operation protection function for motor |
| CN112707251A (en) * | 2020-12-16 | 2021-04-27 | 刘歧山 | Cable manufacture accomodates and uses coiling mechanism |
-
2021
- 2021-04-30 CN CN202110482423.1A patent/CN113192699A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9917735D0 (en) * | 1999-07-28 | 1999-09-29 | Youngflex Ag | Drive mechanism for a actuating cable |
| CN107316714A (en) * | 2017-07-04 | 2017-11-03 | 巢湖市金业电工机械有限公司 | A kind of cage winch stranded wire apparatus with protection mechanism |
| CN107749326A (en) * | 2017-10-17 | 2018-03-02 | 安徽电信器材贸易工业有限责任公司 | A kind of stranded wire apparatus |
| CN210245159U (en) * | 2019-08-13 | 2020-04-03 | 天津威利安电工器材有限公司 | Enameled stranded wire production stranded conductor device |
| CN112173873A (en) * | 2020-10-26 | 2021-01-05 | 广州安华网络科技有限公司 | Protection device for winding drum stalling during computer network cable winding |
| CN112421868A (en) * | 2020-11-24 | 2021-02-26 | 温桂连 | Device with overspeed operation protection function for motor |
| CN112707251A (en) * | 2020-12-16 | 2021-04-27 | 刘歧山 | Cable manufacture accomodates and uses coiling mechanism |
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Application publication date: 20210730 |