CN110631946B - Sole rubber material friction performance test equipment - Google Patents
Sole rubber material friction performance test equipment Download PDFInfo
- Publication number
- CN110631946B CN110631946B CN201911041059.4A CN201911041059A CN110631946B CN 110631946 B CN110631946 B CN 110631946B CN 201911041059 A CN201911041059 A CN 201911041059A CN 110631946 B CN110631946 B CN 110631946B
- Authority
- CN
- China
- Prior art keywords
- plate
- rubber material
- sliding
- rod
- friction performance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D1/00—Foot or last measuring devices; Measuring devices for shoe parts
- A43D1/08—Measuring devices for shoe parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a test device, in particular to a device for testing the friction performance of a rubber material of a sole. The technical problem is as follows: the friction performance testing equipment for the rubber material of the sole, which is high in efficiency and accuracy and saves manpower, is provided. The technical scheme of the invention is as follows: a sole rubber material friction performance test device comprises a base and the like; the middle of the top of the base is provided with a lifting part, the lifting part is connected with a square block, the left side and the right side of the square block are both provided with connecting plates, and the left side and the right side of the connecting plates are both rotatably provided with rollers. According to the invention, the power part is matched with the six-diamond-shaped rod to drive the disc-shaped rubber material to rotate and rub with the belt, so that the friction performance is not required to be tested manually, the testing efficiency is high, different disc-shaped rubber materials can be tested by pushing the guide mechanism, the labor is saved, and the water can be added into the measuring cylinder for testing, so that the testing result is more accurate, and the accuracy is improved.
Description
Technical Field
The invention relates to a test device, in particular to a device for testing the friction performance of a rubber material of a sole.
Background
The shoe is one of the most commonly used wearing articles, and generally comprises an upper, a middle upper, an upper liner, an insole, a shank, an outsole, an inner toe cap, a tongue and a heel, wherein the outsole is a part directly contacted with the ground, and not only protects the bottom and the foot of the shoe, but also has the functions of cushioning the human body and the like along with the impact and friction of the ground in different environments, and the outsole is usually made of a rubber material.
At present, people usually take different rubber materials to rub on a grinding plate to check the friction performance of the rubber materials, the efficiency is low, people can feel sore when testing the hands for a long time, the sore of the hands enables strength to be smaller and smaller, the accuracy of the friction performance of the tested rubber materials is lower and lower, good brands can be badly evaluated and complained because the quality of sole rubber is poor, and the credit of manufacturers is influenced.
Therefore, it is necessary to provide an efficient and accurate apparatus for testing the friction performance of rubber materials for soles to solve the above problems.
Disclosure of Invention
In order to overcome the defects of low efficiency, low accuracy and time and labor waste when the rubber material is manually tested at present, the technical problem is as follows: the friction performance testing equipment for the rubber material of the sole, which is high in efficiency and accuracy and saves manpower, is provided.
The technical scheme of the invention is as follows: a friction performance testing device for sole rubber materials comprises a base, a lifting part, a square block, a connecting plate, a roller and a belt, wherein the lifting part is arranged in the middle of the top of the base, the square block is connected to the lifting part, the left side and the right side of the square block are respectively provided with the connecting plate, the connecting plates on the left side and the right side are respectively provided with the roller in a rotating mode, the belt is wound between the rollers on the left side and the right side, and the friction performance testing device also comprises a guide mechanism, the power component comprises a transverse plate, a power component, a bearing seat, a limiting plate, six diamond-shaped rods and nuts, wherein a guide mechanism is arranged on the left side of the top of a base, the transverse plate is arranged on the guide mechanism, the power component is arranged on the front side of the right portion of the transverse plate, the bearing seat is arranged on the right side of the transverse plate in an embedded mode, an output shaft of the power component penetrates through the bearing seat, the rear end of the output shaft of the power component is connected with the limiting plate, the six diamond-shaped rods are arranged on the rear side face of the limiting plate, the nuts are arranged on the six diamond-shaped rods, and the six diamond-shaped rods are in threaded fit with the nuts.
Optionally, the guide mechanism comprises a vertical plate, a sliding block, a movable plate and a positioning bolt, the vertical plate is connected to the left side of the top of the base, sliding grooves are formed in the upper side and the lower side of the right side face of the vertical plate, the sliding blocks are arranged in the sliding grooves in the upper side and the lower side of the right side face of the vertical plate in a sliding mode, the movable plate is arranged between the sliding blocks in the upper side and the lower side of the right side face of the vertical plate, the positioning bolt is arranged on the movable plate, and the right side of the movable plate is connected with the left end of the transverse plate.
Optionally, still including L type backup pad, slide bar, graduated flask, chock, fluid-discharge tube, valve, driving lever and gyro wheel, base top right side is equipped with L type backup pad, L type backup pad top left side slidingtype is equipped with the slide bar, the slide bar top is equipped with the graduated flask, the graduated flask top is equipped with the chock, the graduated flask lower part is equipped with the fluid-discharge tube, is equipped with the valve on the fluid-discharge tube, right side cylinder front side is equipped with the driving lever, the driving lever tail end is equipped with the gyro wheel, the gyro wheel is located the left side below of graduated flask.
Optionally, the device further comprises a baffle and a buffer spring, the baffle is arranged at the bottom of the sliding rod, and the buffer spring is arranged at the top of the L-shaped supporting plate.
The beneficial effects are that: according to the invention, the power part is matched with the six-diamond-shaped rod to drive the disc-shaped rubber material to rotate and rub with the belt, so that the friction performance is not required to be tested manually, the testing efficiency is high, different disc-shaped rubber materials can be tested by pushing the guide mechanism, the labor is saved, and the water can be added into the measuring cylinder for testing, so that the testing result is more accurate, and the accuracy is improved.
Drawings
Fig. 1 is a schematic front view of the present invention.
FIG. 2 is a schematic top view of a portion of the structure of the present invention.
Description of reference numerals: the automatic measuring device comprises a base 1, a lifting component 2, a square block 3, a connecting plate 4, a roller 5, a belt 6, a guide mechanism 7, a vertical plate 701, a sliding groove 702, a sliding block 703, a movable plate 704, a positioning bolt 705, a transverse plate 8, a power component 9, a bearing seat 10, a limiting plate 11, a hexagonal rod 12, a nut 13, a disc-shaped rubber material 14, a support plate 15L, a sliding rod 151, a measuring cylinder 152, a chock 153, a liquid discharge pipe 154, a valve 155, a shifting rod 156, a roller 157, a baffle 16 and a buffer spring 17.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
Example 1
Referring to fig. 1 and 2, the application provides a sole rubber material friction performance testing device, which comprises a base 1, a lifting part 2, a square block 3, a connecting plate 4, a roller 5 and a belt 6, wherein the lifting part 2 is arranged in the middle of the top of the base 1, the square block 3 is connected to the lifting part 2, the lifting part 2 is a cylinder, the connecting plate 4 is arranged on each of the left and right sides of the square block 3, the roller 5 is arranged on each of the left and right connecting plates 4 in a rotating manner, the belt 6 is wound between the rollers 5 on the left and right sides, the sole rubber material friction performance testing device further comprises a guide mechanism 7, a transverse plate 8, a power part 9, a speed reducing motor, a bearing seat 10, a limiting plate 11, a six-diamond-shaped rod 12 and a nut 13, the guide mechanism 7 is arranged on the left side of the top of the base 1, the transverse plate 8 is provided with a transverse plate 8, the power part 9 is arranged on the front side of the right part of the transverse plate 8, the speed reducing motor is provided with the bearing seat 10 in an embedded manner, an output shaft of the power component 9 penetrates through the bearing seat 10, a limiting plate 11 is connected to the rear end of the output shaft of the power component 9, a six-diamond-shaped rod 12 is arranged on the rear side face of the limiting plate 11, the six-diamond-shaped rod 12 and the limiting plate 11 are integrally formed, a nut 13 is arranged on the six-diamond-shaped rod 12, and the six-diamond-shaped rod 12 is in threaded fit with the nut 13.
When a worker needs to use the device to test the friction force of a rubber material, firstly, the nut 13 is detached, disc-shaped rubber materials 14 of different types are sleeved on the six-diamond-shaped rod 12, then the six-diamond-shaped rod 12 is screwed back through the nut 13 to fix the disc-shaped rubber materials 14, then the guide mechanism 7 is pulled to move forwards, the guide mechanism 7 moves forwards to drive the transverse plate 8 to move forwards, when the foremost disc-shaped rubber material 14 moves forwards to be right above the belt 6, the guide mechanism 7 is stopped to be pulled, the lifting part 2 is started to drive the square block 3 to move upwards, when the belt 6 moves upwards to be in contact with the disc-shaped rubber materials 14, the lifting part 2 is closed, then the power part 9 is started to drive the six-diamond-shaped rod 12 to rotate, the six-diamond-shaped rod 12 rotates to drive the disc-shaped rubber materials 14 to rotate, when the disc-shaped rubber materials 14 rotate to drive the belt 6 to rotate, the friction force of the disc-shaped rubber material 14 is qualified, when the disc-shaped rubber material 14 cannot rotate to drive the belt 6, the friction force of the disc-shaped rubber material 14 is unqualified, and after the test of the foremost disc-shaped rubber material 14 is finished, the guide mechanism 7 is pulled forwards again to test other disc-shaped rubber materials 14. After all the disc-shaped rubber materials 14 on the six-diamond-shaped rod 12 are tested, the lifting component 2 is started to reset downwards, the guide mechanism 7 is pushed to move backwards to reset, the nut 13 is twisted down, the disc-shaped rubber materials 14 on the six-diamond-shaped rod 12 are taken down, other disc-shaped rubber materials 14 needing to be tested are replaced, the nut 13 is twisted up to be fixed, and then the operations are repeated.
Referring to fig. 1, the guiding mechanism 7 includes a vertical plate 701, a sliding block 703, a movable plate 704 and a positioning bolt 705, the vertical plate 701 is connected to the left side of the top of the base 1, the vertical plate 701 is connected to the base 1 by bolts, sliding grooves 702 are formed on the upper and lower sides of the right side surface of the vertical plate 701, the sliding blocks 703 are slidably disposed in the sliding grooves 702 on the upper and lower sides, the movable plate 704 is disposed between the sliding blocks 703 on the upper and lower sides, the positioning bolt 705 is disposed on the movable plate 704, the movable plate 704 is in threaded connection with the positioning bolt 705, and the right side of the movable plate 704 is connected to the left end of the horizontal plate 8.
The working steps of the device are that the movable plate 704 is pushed to move forwards or backwards, the sliding block 703 moves forwards or backwards in the sliding groove 702, the front and back positions of the transverse plate 8 can be adjusted, after the position of the transverse plate 8 is adjusted, the positioning bolt 705 is screwed, the left end of the positioning bolt 705 abuts against the right side of the vertical plate 701, the movable plate 704 can be fixed, after the movable plate 704 is fixed, the transverse plate 8 cannot move, and when the transverse plate 8 needs to move, the positioning bolt 705 is unscrewed.
Example 2
On the basis of embodiment 1, please refer to fig. 1, further comprising an L-shaped support plate 15, a sliding rod 151, a graduated cylinder 152, a plug 153, a liquid discharge pipe 154, a valve 155, a shift lever 156, and a roller 157, wherein the L-shaped support plate 15 is disposed on the right side of the top of the base 1, the sliding rod 151 is slidably disposed on the left side of the top of the L-shaped support plate 15, the sliding rod 151 can vertically slide on the L-shaped support plate 15, the graduated cylinder 152 is disposed on the top of the sliding rod 151, the graduated cylinder 152 is made of transparent plastic, the plug 153 is disposed on the top of the graduated cylinder 152, the liquid discharge pipe 154 is disposed on the lower portion of the graduated cylinder 152, the valve 155 is disposed on the liquid discharge pipe 154, the shift lever 156 is disposed on the front side of the right roller 5, the roller 157 is disposed on the tail end of the shift lever 156, the roller 157 is a rubber wheel, and the roller 157 is disposed on the lower left side of the graduated cylinder 152.
The working steps of the device are as follows: when the belt 6 moves upwards to contact with the disc-shaped rubber material 14, the power component 9 is started to drive the disc-shaped rubber material 14 on the six-diamond-shaped rod 12 to rotate, when the friction force of the disc-shaped rubber material 14 is large, the disc-shaped rubber material 14 drives the belt 6 to rotate, the roller 5 also rotates, the roller 5 rotates to drive the shifting lever 156 to rotate anticlockwise, the shifting lever 156 rotates to drive the measuring cylinder 152 to move upwards through the roller 157, the measuring cylinder 152 moves upwards to drive the sliding rod 151 to move upwards, at this time, people pull out the chock 153, and a certain amount of water is added into the measuring cylinder 152, so that the gravity of the measuring cylinder 152 applied to the driving lever 156 downwards is increased, when the disc-shaped rubber material 14 slips with the belt 6, the water supply is stopped, one can know the friction force of the disc-shaped rubber material 14 through the water level of the measuring cylinder 152, and then the valve 155 is opened, and the water flows out through the drain pipe 154. The above operations may be repeated and other tests of the disc-shaped rubber material 14 may be performed and the data recorded, and then compared, with the higher water level in the measuring cylinder 152 indicating better friction of the disc-shaped rubber material 14 and vice versa. After the test is completed, the power part 9 is turned off, and the measuring cylinder 152 moves downwards to drive the sliding rod 151 to move downwards, so that the friction force of each piece of rubber can be known more accurately.
On the basis of embodiment 1, please refer to fig. 1 and 2, further comprising a baffle 16 and a buffer spring 17, wherein the baffle 16 is disposed at the bottom of the sliding rod 151, the sliding rod 151 is connected with the baffle 16 by welding, and the buffer spring 17 is disposed at the top of the L-shaped supporting plate 15.
The working steps of the device are that when the measuring cylinder 152 moves upwards to drive the sliding rod 151 to move upwards, the sliding rod 151 moves upwards to drive the baffle 16 to move upwards, and under the action of the baffle 16, the sliding rod 151 can be prevented from being disengaged from the L-shaped supporting plate 15. After the power part 9 is closed, the measuring cylinder 152 moves downwards under the gravity of water, the buffer spring 17 can reduce the impact force of the downward movement of the measuring cylinder 152, and can prevent the measuring cylinder 152 from impacting the L-shaped support plate 15, so that the buffer effect is achieved.
The present application is described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, which are only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (3)
1. A sole rubber material friction performance test device comprises a base (1), a lifting part (2), square blocks (3), connecting plates (4), rollers (5) and a belt (6), wherein the lifting part (2) is arranged in the middle of the top of the base (1), the square blocks (3) are connected onto the lifting part (2), the connecting plates (4) are arranged on the left side and the right side of each square block (3), the rollers (5) are arranged on the connecting plates (4) on the left side and the right side in a rotating mode, the belt (6) is wound between the rollers (5) on the left side and the right side, the sole rubber material friction performance test device is characterized by further comprising a guide mechanism (7), a transverse plate (8), a power part (9), a bearing seat (10), a limiting plate (11), a six-diamond-shaped rod (12) and a nut (13), the guide mechanism (7) is arranged on the left side of the top of the base (1), the transverse plate (8) is provided with the power part (9) on the front side of the right portion, a bearing seat (10) is embedded in the right side of the transverse plate (8), an output shaft of the power part (9) penetrates through the bearing seat (10), the rear end of the output shaft of the power part (9) is connected with a limiting plate (11), a six-diamond-shaped rod (12) is arranged on the rear side face of the limiting plate (11), a nut (13) is arranged on the six-diamond-shaped rod (12), and the six-diamond-shaped rod (12) is in threaded fit with the nut (13);
the guide mechanism (7) comprises a vertical plate (701), a sliding block (703), a movable plate (704) and a positioning bolt (705), the vertical plate (701) is connected to the left side of the top of the base (1), sliding grooves (702) are formed in the upper side and the lower side of the right side face of the vertical plate (701), the sliding block (703) is arranged in the sliding grooves (702) in the upper side and the lower side in a sliding mode, the movable plate (704) is arranged between the sliding blocks (703) in the upper side and the lower side, the positioning bolt (705) is arranged on the movable plate (704), and the right side of the movable plate (704) is connected with the left end of the transverse plate (8).
2. The sole rubber material friction performance testing device according to claim 1, further comprising an L-shaped supporting plate (15), a sliding rod (151), a measuring cylinder (152), a plug block (153), a liquid discharge pipe (154), a valve (155), a shifting rod (156) and a roller (157), wherein the L-shaped supporting plate (15) is arranged on the right side of the top of the base (1), the sliding rod (151) is arranged on the left side of the top of the L-shaped supporting plate (15) in a sliding manner, the measuring cylinder (152) is arranged on the top of the sliding rod (151), the plug block (153) is arranged on the top of the measuring cylinder (152), the liquid discharge pipe (154) is arranged on the lower portion of the measuring cylinder (152), the valve (155) is arranged on the liquid discharge pipe (154), the shifting rod (156) is arranged on the front side of the right-side roller (5), the roller (157) is arranged at the tail end of the shifting rod (156), and the roller (157) is located on the lower left side of the measuring cylinder (152).
3. The sole rubber material friction performance testing device according to claim 2, characterized by further comprising a baffle (16) and a buffer spring (17), wherein the baffle (16) is arranged at the bottom of the sliding rod (151), and the buffer spring (17) is arranged at the top of the L-shaped supporting plate (15).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911041059.4A CN110631946B (en) | 2019-10-30 | 2019-10-30 | Sole rubber material friction performance test equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911041059.4A CN110631946B (en) | 2019-10-30 | 2019-10-30 | Sole rubber material friction performance test equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110631946A CN110631946A (en) | 2019-12-31 |
CN110631946B true CN110631946B (en) | 2022-03-18 |
Family
ID=68978508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911041059.4A Active CN110631946B (en) | 2019-10-30 | 2019-10-30 | Sole rubber material friction performance test equipment |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110631946B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112683673B (en) * | 2020-12-21 | 2024-03-19 | 哈尔滨商业大学 | Snow-removing rolling brush mechanical property test experiment table and test method |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6199424B1 (en) * | 1997-04-07 | 2001-03-13 | Bridgestone/Firestone, Inc. | Portable universal friction testing machine and method |
CN202126377U (en) * | 2011-06-01 | 2012-01-25 | 明门(中国)幼童用品有限公司 | Wear resistance testing device for wheels |
CN205229023U (en) * | 2015-12-17 | 2016-05-11 | 高铁检测仪器(东莞)有限公司 | Rubber autohension tester |
CN108303335A (en) * | 2017-12-28 | 2018-07-20 | 衷小聪 | A kind of rubber material abrasion resistance test device |
CN108451099A (en) * | 2018-02-25 | 2018-08-28 | 晋江诺研机械设计有限公司 | A kind of sole skid resistance detection device |
-
2019
- 2019-10-30 CN CN201911041059.4A patent/CN110631946B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6199424B1 (en) * | 1997-04-07 | 2001-03-13 | Bridgestone/Firestone, Inc. | Portable universal friction testing machine and method |
CN202126377U (en) * | 2011-06-01 | 2012-01-25 | 明门(中国)幼童用品有限公司 | Wear resistance testing device for wheels |
CN205229023U (en) * | 2015-12-17 | 2016-05-11 | 高铁检测仪器(东莞)有限公司 | Rubber autohension tester |
CN108303335A (en) * | 2017-12-28 | 2018-07-20 | 衷小聪 | A kind of rubber material abrasion resistance test device |
CN108451099A (en) * | 2018-02-25 | 2018-08-28 | 晋江诺研机械设计有限公司 | A kind of sole skid resistance detection device |
Also Published As
Publication number | Publication date |
---|---|
CN110631946A (en) | 2019-12-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110631946B (en) | Sole rubber material friction performance test equipment | |
CN107485124B (en) | Multifunctional detection machine for shoes | |
CN108497624B (en) | Sole antiskid nature test equipment for shoes detection | |
CN207832600U (en) | A kind of climbing boot crocking resistance detection device | |
CN106942845A (en) | Sole press fit device is used in a kind of energy-saving shoes processing | |
CN108760621B (en) | Sole limited slip performance tester | |
CN108451099B (en) | Sole antiskid nature check out test set | |
CN110567831B (en) | Sole rubber material abrasion resistance test equipment | |
CN116616531B (en) | Skid resistance detection device and detection method for rubber soles of sports shoes | |
CN211904879U (en) | Sole wearability detection device | |
CN112167774A (en) | Sole antiskid nature testing arrangement is used in shoes detection | |
CN105510224B (en) | A kind of pavement slip-resistance tester device | |
CN107581714B (en) | Multipurpose shoes detecting machine with immersion detecting function | |
CN213600527U (en) | Reciprocating abrasion testing machine for leather shoe heel surface | |
CN114543737B (en) | Concentricity detection device for joint pin shaft of engineering machinery | |
CN213875311U (en) | Concrete hardness detection device | |
CN216541131U (en) | Fixed-length pipe feeding device for pipe cutting machine | |
CN208476706U (en) | Footwear rubber wear-resisting testing machine | |
CN211176169U (en) | Intelligent automatic cost consulting device | |
CN110411877B (en) | Rockwell hardness meter with function of adjusting angle of measuring platform | |
CN202974823U (en) | Rotating-roller type sole abrasion-resistance test machine | |
CN216646071U (en) | Shoes hardness detection device | |
CN202956317U (en) | Quality inspection tool of automobile laminated glass | |
CN219053914U (en) | Sole equipment of polishing | |
CN111022877A (en) | A show teaching device for training |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20220302 Address after: Room 308, No. 317500, West Shuling Road, Wenzhou City, Zhejiang Province Applicant after: China light inspection and certification (Wenling) Co.,Ltd. Address before: 510000 Room 501, building 2, Kangzhuang Road, Baiyun District, Guangzhou, Guangdong Applicant before: Lin Qi |
|
TA01 | Transfer of patent application right | ||
GR01 | Patent grant | ||
GR01 | Patent grant |