CN113738847A - Torque-adjustable magnetic transmission planetary reducer - Google Patents
Torque-adjustable magnetic transmission planetary reducer Download PDFInfo
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- CN113738847A CN113738847A CN202111151171.0A CN202111151171A CN113738847A CN 113738847 A CN113738847 A CN 113738847A CN 202111151171 A CN202111151171 A CN 202111151171A CN 113738847 A CN113738847 A CN 113738847A
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 120
- 230000005540 biological transmission Effects 0.000 title claims abstract description 47
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 29
- 230000005389 magnetism Effects 0.000 claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009467 reduction Effects 0.000 description 22
- 230000009471 action Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 230000005294 ferromagnetic effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000032369 Primary transmission Diseases 0.000 description 2
- 208000032370 Secondary transmission Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H49/00—Other gearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Friction Gearing (AREA)
Abstract
An adjustable torque magnetic transmission planetary reducer relates to the field of speed reducers. The planet wheel comprises at least two permanent magnets and a first annular shell, and the permanent magnets are alternately arranged in the first annular shell according to the positive and negative magnetism; one end of the input shaft penetrates through the sun gear and is connected with the planet carrier disc, and the planet gear is rotatably connected with the planet carrier disc; the number of the planet wheels is at least two, the planet wheels are uniformly distributed around the center of the sun wheel, and the permanent magnets of the planet wheels are magnetically connected with the permanent magnets of the sun wheel; the first magnetic ring comprises at least two permanent magnets and a second annular shell, and the permanent magnets are alternately arranged in the second annular shell according to the positive and negative magnetism; the permanent magnet of the planet wheel is magnetically connected with the permanent magnet of the magnetic ring. The device has the advantages that: through the magnetic property of the planet wheel, the power for continuously rotating is provided, the direct contact is avoided, and the damage caused by friction is reduced. Adjust their output torque.
Description
Technical Field
The invention relates to the field of speed reducers, in particular to a torque-adjustable magnetic transmission planetary speed reducer.
Background
The traditional mechanical speed reducer has the functions of matching the rotating speed and transmitting the torque between a prime mover and a working machine or an actuating mechanism, and is a relatively precise machine. Its purpose is to reduce the speed and increase the torque. Because the traditional planetary reducer rotates and transmits torque by meshing gears with gears, and the gears are meshed by contact friction transmission, the traditional planetary reducer cannot bear ultrahigh rotating speed transmission abrasion. In the prior art, magnetic force is used for replacing gear friction, and the problem of high-speed rotation is solved, but the conventional magnetic speed reducer is generally in single-point transmission, has small conduction torque, and is easy to cause the stalling and damage of a motor.
Disclosure of Invention
In order to solve the problems that the magnetic speed reducer is in single-point transmission, small in conduction torque and large in friction, and the motor is easy to cause locked rotor and damage, the invention adopts the following technical scheme:
a torque-adjustable magnetic transmission planetary reducer comprises an input shaft, a planet carrier disc, a planet wheel, a sun wheel and a magnetic ring; the planet wheel and the sun wheel are the same in size, the planet wheel comprises at least two permanent magnets and a first annular shell, the at least two permanent magnets are alternately arranged in the first annular shell according to the positive and negative magnetism, and the number of the permanent magnets is even; the planet carrier comprises a planet carrier disc and an output shaft, the planet carrier disc is connected with the output shaft, the input shaft is connected with a sun wheel in a penetrating way, and the planet carrier disc is rotatably connected with a planet wheel; the number of the planet wheels is at least two, the planet wheels are uniformly distributed around the center of the sun wheel, and the permanent magnets of the planet wheels are magnetically connected with the permanent magnets of the sun wheel; the magnetic ring comprises at least two permanent magnets, the number of the permanent magnets is even, and the at least two permanent magnets are alternately connected into a ring according to the positive and negative magnetism; the permanent magnet of the planet wheel is magnetically connected with the permanent magnet of the magnetic ring. The axial distance between the sun wheel and the planet wheel is adjustable, the axial distance between the planet wheel and the magnetic ring is adjustable, and the sun wheel and the planet wheel are arranged in the magnetic ring.
Specifically, the first annular shell is internally provided with cavities, the number of the cavities is the same as that of the permanent magnets, each cavity is provided with a boss, each permanent magnet is provided with a groove, and the grooves of the permanent magnets are clamped with the bosses.
Specifically, the magnetic ring further comprises a second annular shell, cavities are formed in the second annular shell, the number of the cavities is the same as that of the permanent magnets, bosses are arranged on each cavity, grooves are formed in the permanent magnets, and the grooves of the permanent magnets are clamped with the bosses.
Specifically, there are three planet wheels.
Specifically, the planet wheel is overlapped and arranged under the sun wheel, and the magnetic ring is arranged above the three planet wheels. Through planet wheel and sun gear axial magnetic attraction rotation, planet wheel and the rotation of magnetic ring axial magnetic attraction realize the axial transmission speed reduction, and the acting surface between planet wheel and the magnetic ring is the face, and the transmission moment of torsion is little.
Specifically, the planet wheel is arranged in an inner ring of the second annular shell, and the planet wheel, the main planet wheel and the magnetic ring wheel are arranged on the same horizontal plane. Through planet wheel and sun gear axial magnetic attraction rotation, planet wheel and the radial magnetic attraction rotation of magnetosphere realize radial transmission and slow down, and the working face between planet wheel and the magnetosphere is a straight line, and the transmission moment of torsion is little.
Specifically, still include the second magnetosphere, the size of second magnetosphere is the same with first magnetosphere, and the planet carrier dish is located in the inner ring of second magnetosphere, and the permanent magnet of planet wheel is connected with the permanent magnet magnetism of second magnetosphere, and second magnetosphere and planet carrier dish set up in same horizontal plane. Through the axial transmission, the action face between the planet wheel and the first magnetic ring and the second magnetic ring is up and down respectively, and the transmission torque is little.
Drawings
FIG. 1 is a schematic view of a radial multi-point transmission structure of an adjustable torque magnetic transmission planetary reducer;
FIG. 2 is a schematic view of an axial multi-point transmission structure of an adjustable torque magnetic transmission planetary reducer;
FIG. 3 is a schematic diagram of an axial double-sided transmission structure of an adjustable torque magnetic transmission planetary reducer;
FIG. 4 is a schematic view of the construction of the annular housing of the magnetic ring of the adjustable torque magnetic drive planetary reducer;
FIG. 5 is a schematic diagram of the construction of the annular housing of the planet gears of an adjustable torque magnetic drive planetary reduction gear;
reference numerals: 1 an input shaft; 2 a planet carrier disc; 3 a sun gear; 4 a first magnetic ring; 5 a planet wheel; 6 a second magnetic ring; 7, an inner ring; 8 chambers; 9 a second annular housing; 10 first annular housing.
Detailed Description
Example 1:
the invention is further described below with reference to fig. 1 and 4.
A torque-adjustable magnetic transmission planetary reducer comprises an input shaft 1, a planet carrier disc 2, a sun gear 3 and a planet gear 5; planet wheel 5 is the same with sun gear 3's size, and the planet wheel includes 6 permanent magnets and 1 first annular casing 10, has seted up cavity 8 in the first annular casing 10, is provided with the boss in the cavity 8, has seted up the recess on the permanent magnet, the recess card and the boss joint of permanent magnet. In order to realize the rotation process, the magnetic transmission process after the planet wheel rotates is realized by utilizing the principle that the permanent magnets repel each other due to the same magnetism and attract each other due to the opposite polarities, so that the permanent magnets are alternately arranged in the first annular shell 10 according to the positive and negative magnetism. There are 3 planet wheels 5 and 1 sun wheel 3. One end of the input shaft 1 is fixedly connected with the carrier plate 2, and one end of the input shaft 1 passes through the annular housing inner ring of the sun gear 3 and is fixedly connected. In order to realize the primary speed reduction of the axial multi-point transmission, the planet wheels 5 are rotatably connected with the planet carrier disc 2 through a connecting shaft, the permanent magnets of the 3 planet wheels 5 are in ferromagnetic connection with the permanent magnet of the sun wheel 3, and the three planet wheels 5 are overlapped under the sun wheel 3 to realize the axial magnetic connection. In order to realize two-stage speed reduction, a first magnetic ring 4 is further arranged, the first magnetic ring 4 comprises 18 permanent magnets and a second annular shell 9, and the 18 permanent magnets are alternately arranged in the second annular shell 9 according to the positive and negative magnetism; the permanent magnet of planet wheel 5 is connected with the permanent magnet magnetism of first magnetosphere 4, and first magnetosphere 4 is folded and is located directly over planet wheel 5, realizes axial magnetism and connects. The first magnetic ring 4 is connected with an external speed reducing device.
When the torque-adjustable magnetic transmission planetary reducer operates, the input shaft 1 rotates to drive the sun gear 3 to rotate in the same direction, in addition, the 3 planetary gears 5 and the sun gear 3 can rotate independently and are arranged under the sun gear 3 and are in magnetic connection, the permanent magnets at the overlapped parts are attracted by the axial opposite magnetic poles, the 3 planetary gears 5 rotate in the same direction under the action of the permanent magnets at the different poles of the sun gear 3, after the planetary gears rotate by a deviation angle, the permanent magnets continue to rotate under the action of the repulsion of the axial same poles, and return to the opposite attraction state, so that one-stage transmission speed reduction is realized. When 3 planet wheel 5 rotated, the permanent magnetism son of overlapping first magnetic ring 4 that sets up on sun gear 3 relied on to receive opposite poles to inhale the axial magnetism effect, and first magnetic ring 4 rotates along with 3 planet wheel 5 syntropy, when rotating an angle, receives the effect that axial homopolar repeatees simultaneously again and continues to rotate, realizes secondary drive speed reduction like this.
As can be seen from the above description, the device has the following advantages:
(1) when the different-name magnetic poles attract, the transmission torque can be transmitted without contact, and when the same-name magnetic poles attract, the power for continuing rotating is provided. Compared with the traditional gear, the gear avoids contact and reduces damage caused by friction.
(2) The suction force of the sun wheel and the planet wheel fixed on the planet carrier disc can be adjusted by adjusting the distance between the sun wheel and the planet wheel, and the output torque of the first-stage speed reduction can be adjusted; the distance between the planet wheel and the magnetic ring in the vertical direction is adjusted, so that the suction force between the planet wheel and the magnetic ring can be adjusted, and the output torque of the secondary speed reduction can be adjusted.
(3) Through the axial transmission, the acting surface between the planet wheel and the magnetic ring is a surface, and the transmission torque is small.
Example 2:
the invention is further described below with reference to fig. 2 and 4.
A torque-adjustable magnetic transmission planetary reducer comprises an input shaft 1, a planet carrier disc 2, a sun gear 3 and a planet gear 5. The planet wheels 5 and the sun wheel 3 are of the same size. Planet wheel 5 includes 6 permanent magnets and 1 first annular casing 10, has seted up cavity 8 in the first annular casing 10, is provided with the boss in the cavity 8, has seted up the recess on the permanent magnet, the recess card and the boss joint of permanent magnet. In order to realize the rotation process, the magnetic transmission process after the planet wheel rotates is realized by utilizing the principle that the permanent magnets repel each other due to the same magnetism and attract each other due to the opposite polarities, so that the permanent magnets are alternately arranged in the first annular shell 10 according to the positive and negative magnetism. The planet wheels comprise 3 planet wheels 5 and one sun wheel 3. One end of the input shaft 1 is fixedly connected with the planet carrier disc 2, and one end of the input shaft 1 penetrates through the sun gear 3 and is fixedly connected with the sun gear 3. In order to realize the primary speed reduction of the axial multi-point transmission, the other 3 planet wheels 5 are rotatably connected with the planet carrier disc 2 through a connecting shaft, the permanent magnets of the 3 planet wheels 5 are in ferromagnetic connection with the permanent magnet of the sun wheel 3, and the three planet wheels 5 and the sun wheel 3 are arranged in the same horizontal plane to realize radial magnetic connection. In order to realize the two-stage speed reduction, a first magnetic coil 10 is also arranged, the first magnetic coil 10 comprises 18 permanent magnets and a second annular shell 9, and the permanent magnets are alternately arranged in the second annular shell 9 according to the positive and negative magnetism; the permanent magnet of planet wheel 5 is connected with the radial magnetism of the permanent magnet of first magnetosphere 10, and first magnetosphere 10, planet wheel 5, sun gear 3 set up in same horizontal plane. The first magnetic coil 10 is connected to an external reduction gear.
When the torque-adjustable magnetic transmission planetary reducer operates, the input shaft 1 rotates to drive the sun gear 3 to rotate in the same direction, the other 3 planetary gears 5 and the sun gear 3 can rotate independently and are arranged on the same horizontal plane, the permanent magnets opposite to the planetary gears and the sun gear 3 are attracted by radial opposite poles to rotate in the same direction, and after the planetary gears rotate by a deviation angle, the planetary gears are further attracted by radial opposite poles to continuously push the planetary gears to rotate and return to the opposite-pole attraction state, so that primary transmission speed reduction is realized. Similarly, the permanent magnets of the planet wheel 5 and the first magnetic ring 4 are attracted by opposite polarities and have radial magnetic action, the first magnetic ring 4 rotates along with the planet wheel 5 in the same direction, and when the planet wheel rotates by an angle, the first magnetic ring and the first magnetic ring continue to rotate under the action of radial repelling of the same polarity, so that secondary transmission speed reduction is realized.
As can be seen from the above description, the device has the following advantages:
1. when the different-name magnetic poles attract, the transmission torque can be transmitted without contact, and when the same-name magnetic poles attract, the power for continuing rotating is provided. Compared with the traditional gear, the gear avoids contact and reduces damage caused by friction.
2. The suction force of the sun wheel and the planet wheel can be adjusted by adjusting the distance between the sun wheel and the planet wheel, and the output torque of the first-stage speed reduction can be adjusted; the distance between the planet wheel and the magnetic ring in the horizontal direction is adjusted, so that the suction force between the planet wheel and the magnetic ring can be adjusted, and the output torque of the secondary speed reduction can be adjusted.
3. Through radial transmission, the action surface between the planet wheel and the magnetic ring is a straight line, and the transmission torque is small.
Example 3:
the invention is further described below in connection with fig. 3 and 4.
A torque-adjustable magnetic transmission planetary reducer comprises an input shaft 1, a planet carrier disc 2, a sun gear 3, a planet gear 5, a first magnetic ring 4 and a second magnetic ring 6. The planet wheel 5 and the sun wheel 3 are the same in size, and the first magnetic ring 4 and the second magnetic ring 6 are the same in size. The planet wheel includes 6 permanent magnets and 1 first annular casing 10, has seted up cavity 8 in the first annular casing 10, is provided with the boss in the cavity 8, has seted up the recess on the permanent magnet, the recess card and the boss joint of permanent magnet. In order to realize the rotation process, the magnetic transmission process after the planet wheel rotates is realized by utilizing the principle that the permanent magnets repel each other due to the same magnetism and attract each other due to the opposite polarities, so that the permanent magnets are alternately arranged in the first annular shell 10 according to the positive and negative magnetism. The planet wheels comprise 3 planet wheels 5 and one sun wheel 3. One end of the input shaft 1 is fixedly connected with the planet carrier disc 2, and the input shaft 1 penetrates through the sun gear 3 and is fixedly connected with the sun gear 3. In order to realize the primary speed reduction of the axial multi-point transmission, the other 3 planet wheels 5 are rotatably connected with the planet carrier disc 2 through a connecting shaft, the permanent magnets of the 3 planet wheels 5 are in ferromagnetic connection with the permanent magnet of the sun wheel 3, and the three planet wheels 5 are overlapped under the sun wheel 3 to realize the axial magnetic connection. In order to realize the two-stage speed reduction, a first magnetic coil 4 and a second magnetic coil 6 are also arranged, the first magnetic coil 4 and the second magnetic coil 6 both comprise 18 permanent magnets and a second annular shell 9, and the permanent magnets are alternately arranged in the second annular shell 9 according to the positive and negative magnetism; the permanent magnet of planet wheel is connected with the permanent magnet magnetism of first magnetosphere 4 and second magnetosphere 6 respectively, and first magnetosphere 4 is folded and is located the planet wheel directly over, realizes axial magnetism and connects. The planet carrier disc 2 is sleeved in the second annular shell 9 inner ring of the second magnetic ring 6, the planet carrier disc 2 and the second magnetic ring 6 are in the same horizontal plane, so that the planet wheel 5 of the second magnetic ring 6 is under the planet wheel 5, and the permanent magnet of the planet wheel 5 is magnetically connected with the permanent magnet of the second magnetic ring 6, so that the axial magnetic connection is realized. The first magnetic coil 4 and the second magnetic coil 6 are connected with an external speed reduction device.
When the torque-adjustable magnetic transmission planetary reducer operates, the input shaft 1 rotates to drive the sun gear 3 to rotate in the same direction, the planet gear 5 and the sun gear 3 can rotate independently, the planet gear 5 is arranged right below the sun gear 3, the permanent magnets at the overlapped parts are attracted by the axial opposite poles to rotate in the same direction, after the permanent magnets rotate by a deviation angle, the permanent magnets are repelled by the axial same poles to continue to rotate, and the permanent magnets rotate back to the opposite pole attraction state, so that primary transmission speed reduction is realized. Similarly, the first magnetic ring 4 and the second magnetic ring 6 which are respectively arranged on the planet wheel 5 in an up-down overlapping mode are under the action of opposite attraction axial magnetism, the first magnetic ring 4 and the second magnetic ring 6 rotate along with the planet wheel 5 in the same direction, and when the first magnetic ring 4 and the second magnetic ring rotate through an angle, the first magnetic ring and the second magnetic ring continue to rotate under the action of axial repulsion, so that secondary transmission speed reduction is achieved. The rotation efficiency is improved by the magnetic action of the two surfaces.
As can be seen from the above description, the device has the following advantages:
1. when the different-name magnetic poles attract, the transmission torque can be transmitted without contact, and when the same-name magnetic poles attract, the power for continuing rotating is provided. Compared with the traditional gear, the gear avoids contact and reduces damage caused by friction.
2. The suction force of the sun wheel and the sun wheel can be adjusted by adjusting the distance between the sun wheel and the sun wheel, and the output torque of the first-stage speed reduction can be adjusted; the distances between the planet wheels and the first magnetic ring and between the planet wheels and the second magnetic ring in the vertical direction are adjusted, so that the attraction force between the planet wheels and the first magnetic ring and the second magnetic ring can be adjusted, and the output torque of the secondary speed reduction can be adjusted.
3. Through the axial transmission, the action face between the planet wheel and the first magnetic ring and the second magnetic ring is up and down respectively, and the transmission torque is little.
It should be understood that the detailed description of the invention is merely illustrative of the invention and is not intended to limit the invention to the specific embodiments described. It will be appreciated by those skilled in the art that the present invention may be modified or substituted equally as well to achieve the same technical result; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (7)
1. A torque-adjustable magnetic transmission planetary reducer is characterized by comprising an input shaft, a planet carrier disc, a planet wheel, a sun wheel and a magnetic ring; the planet wheel and the sun wheel both comprise at least two permanent magnets and a first annular shell, the at least two permanent magnets are alternately arranged in the first annular shell according to the positive and negative magnetism, and the number of the permanent magnets is even; the planet carrier comprises a planet carrier disc and an output shaft, the planet carrier disc is connected with the output shaft, the input shaft is connected with the sun wheel in a penetrating way, and the planet carrier disc is rotatably connected with the planet wheel; the number of the planet wheels is at least two, the planet wheels are uniformly distributed around the center of the sun wheel, and the permanent magnets of the planet wheels are magnetically connected with the permanent magnets of the sun wheel; the magnetic ring comprises at least two permanent magnets, the number of the permanent magnets is even, and the at least two permanent magnets are alternately connected into a ring according to the positive and negative magnetism; the permanent magnet of planet wheel with the permanent magnet magnetism of magnetosphere is connected, the sun gear with the axial distance between the planet wheel is adjustable, the axial distance between planet wheel and the magnetosphere is adjustable, the sun gear with the projection of planet wheel is located in the magnetosphere.
2. The torque-adjustable magnetic transmission planetary reducer according to claim 1, wherein the first annular housing is internally provided with cavities, the number of the cavities is the same as that of the permanent magnets, each cavity is provided with a boss, the permanent magnets are provided with grooves, and the groove clamps of the permanent magnets are clamped with the bosses.
3. The torque-adjustable magnetic transmission planetary reducer according to claim 1, wherein the magnetic ring further comprises a second annular housing, chambers are formed in the second annular housing, the number of the chambers is the same as that of the permanent magnets, a boss is arranged on each chamber, a groove is formed in each permanent magnet, and the groove clamp of each permanent magnet is clamped with the boss.
4. The adjustable torque magnetic drive planetary reducer of claim 1, in which there are three of the planets.
5. The adjustable torque magnetic drive planetary reducer of claim 1, where the planetary stack is located directly below the sun and the magnetic ring stack is located directly above the three planetary gears.
6. The adjustable torque magnetic drive planetary reducer of claim 3, where the planets are disposed in an inner ring of the second annular housing, and where the planets, the primary planets, and the magnetic ring gear are disposed on a common horizontal plane.
7. The torque-adjustable magnetic transmission planetary reducer according to claim 5, further comprising a second magnetic ring, wherein the planet carrier disc is sleeved in an inner ring of the second magnetic ring, the permanent magnet of the planet wheel is magnetically connected with the permanent magnet of the second magnetic ring, and the second magnetic ring and the planet carrier disc are arranged on the same horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151171.0A CN113738847A (en) | 2021-09-29 | 2021-09-29 | Torque-adjustable magnetic transmission planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111151171.0A CN113738847A (en) | 2021-09-29 | 2021-09-29 | Torque-adjustable magnetic transmission planetary reducer |
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| Publication Number | Publication Date |
|---|---|
| CN113738847A true CN113738847A (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111151171.0A Pending CN113738847A (en) | 2021-09-29 | 2021-09-29 | Torque-adjustable magnetic transmission planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113738847A (en) |
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2021
- 2021-09-29 CN CN202111151171.0A patent/CN113738847A/en active Pending
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Effective date of registration: 20220317 Address after: No. 54, Jingdong Road, Jingzhou District, Jingzhou City, Hubei Province Applicant after: Wang Shouwu Address before: 315000 room 112, building 10, No. 21, Lane 689, Changxing Road, Jiangbei District, Ningbo City, Zhejiang Province Applicant before: Ningbo Xinmi Technology Co.,Ltd. |
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