CN217853432U - Handle assembly for oral care and oral care equipment - Google Patents

Handle assembly for oral care and oral care equipment Download PDF

Info

Publication number
CN217853432U
CN217853432U CN202222069412.3U CN202222069412U CN217853432U CN 217853432 U CN217853432 U CN 217853432U CN 202222069412 U CN202222069412 U CN 202222069412U CN 217853432 U CN217853432 U CN 217853432U
Authority
CN
China
Prior art keywords
installation
mounting
oral care
handle assembly
frame
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
Application number
CN202222069412.3U
Other languages
Chinese (zh)
Inventor
李俊辉
孟凡迪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Sushi Technology Co Ltd
Original Assignee
Shenzhen Sushi Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Sushi Technology Co Ltd filed Critical Shenzhen Sushi Technology Co Ltd
Priority to CN202222069412.3U priority Critical patent/CN217853432U/en
Application granted granted Critical
Publication of CN217853432U publication Critical patent/CN217853432U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Brushes (AREA)

Abstract

The utility model provides a handle components and oral care equipment for oral care. An oral care handle assembly comprising: the sound wave motor comprises a motor body and a power output shaft, wherein the motor body is provided with an output axis extending along the power output direction; a fluid mechanism having a first inlet and a second outlet, the second outlet in communication with the first inlet; the installation casing extends along power output shaft's axial direction, and the installation casing is inside hollow tubular structure, and the installation casing includes the core installation department and is located the installation frame of core installation department, and the installation frame has first installation storehouse and second installation storehouse, and the sound wave motor is installed in first installation storehouse, and fluid mechanism installs in second installation storehouse, and forms multiple spot elastic contact between the inner wall of the periphery of installation frame and core installation department. The technical scheme of the utility model handle subassembly for oral care can reduce the vibrations that the motor transmitted to the handle casing, reduces the vibration noise, improves user's use and experiences.

Description

Handle assembly for oral care and oral care equipment
Technical Field
The utility model relates to an oral care technical field particularly, relates to a handle components and oral care equipment for oral care.
Background
Along with the improvement of living standard, the consciousness of people on oral care is gradually improved, and oral cleaning tools on the market are more diversified, wherein the tooth flushing device and the electric toothbrush are used as substitutes of the traditional dental floss to become one of necessary household appliances. Their basic working principle is that the pump body is used to pump water from water tank, and the high-pressure pulse water flow which is jetted several hundred times or even thousands times per minute is jetted out through the nozzle to clean food residue, dental bacteria cavity spot and massage gum in the gap between teeth, so as to improve the mouth environment.
Present oral cavity cleaning device, the motor can produce great vibrations when the operation, and the mounting structure of motor sets up unreasonablely, and the vibrations that the during operation produced are very big, and motor vibrations bumps with shell and circuit control board, and in addition, the motor shaft also can produce the collision between the shell when positive reverse fast turn, can produce great noise from this, and then influences user's use and experience, and also cause the motor to appear becoming flexible and damaging easily, thereby reduce its life.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a handle components and oral care equipment for oral care, above-mentioned handle components for oral care can reduce the vibrations that the motor transmitted to the handle casing, reduces vibration noise, improves user and uses experience.
In order to achieve the above object, the utility model provides a handle assembly for oral care, include: the sound wave motor comprises a motor body and a power output shaft, wherein the motor body is provided with an output axis extending along the power output direction; the power output shaft extends along the output axis and penetrates through the motor body, the power output shaft is configured to be matched with the motor body and transmit the output power of the motor body, and the power output shaft is provided with an axial channel parallel to the output axis and a first inlet and a first outlet which are communicated with the axial channel; a fluid mechanism having a first inlet and a second outlet, the second outlet in communication with the first inlet; the installation casing extends along power output shaft's axial direction, and the installation casing is inside hollow tubular structure, and the installation casing includes the core installation department and is located the installation frame of core installation department, and the installation frame has first installation storehouse and second installation storehouse, and the sound wave motor is installed in first installation storehouse, and fluid mechanism installs in second installation storehouse, and forms multiple spot elastic contact between the inner wall of the periphery of installation frame and core installation department.
Further, a plurality of first elastic convex parts are arranged on the periphery of the installation frame at intervals along the extension direction of the output axis, and the installation frame is in multipoint elastic contact with the inner wall of the movement installation part through the plurality of first elastic convex parts.
Further, the surface of the first elastic convex part facing the inner wall of the movement installation part is arc-shaped.
Further, the installation frame includes the mount pad, and the mount pad is provided with first installation storehouse, and two opposite sides of mount pad are provided with the installation curb plate respectively, and two installation curb plates deviate from each other, and first elasticity convex part sets up the edge of keeping away from the mount pad at the installation curb plate.
Furthermore, a through groove which runs through along the thickness direction is formed in the mounting side plate, and a connecting arm which is located on one side of the through groove and is far away from the mounting seat protrudes towards the direction far away from the mounting seat to form a first elastic convex part.
Further, be provided with the mounting groove on the inner wall of core installation department, the mounting groove extends along the installation direction of installation frame, and the installation curb plate card is established in the mounting groove.
Further, second elastic convex parts are arranged on two opposite side walls of the installation side plate, the second elastic convex parts protrude towards the side walls of the installation groove, and the installation side plate is in multi-point elastic contact with the side walls of the installation groove through the second elastic convex parts.
Further, the surface of the second elastic projection is arc-shaped.
Further, along the loading direction of the movement installation part, the first elastic convex part and the second elastic convex part are arranged in a staggered mode.
According to another aspect of the present invention, the utility model provides an oral care device, including nursing head subassembly and foretell handle components, the nursing head subassembly is used for cleaning the oral cavity.
Use the technical scheme of the utility model, form multiple spot elastic contact between the periphery of installation frame and the inner wall of core installation department. In this embodiment, the periphery of installation frame and the inner wall of core installation department form multiple spot elastic contact, make also to form the shock attenuation cooperation between installation frame and the core installation department, because first installation storehouse and second installation storehouse all are located the installation frame, consequently, the vibrations of sound wave motor and fluid mechanism can transmit to the core installation department through the installation frame on, and the installation frame forms multiple spot contact with the core installation department, can make all vibrations sources when transmitting vibrations to the installation casing, can form each contact point of concentrated point dispersion from the vibrations source to installation frame and core installation department, thereby the dispersion vibrations effect, make the whole vibrations effect of core installation department weaken, vibration noise descends, realize good shock attenuation effect.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 illustrates an exploded view of an oral care handle assembly according to an embodiment of the present invention;
fig. 2 illustrates a schematic structural view of an oral care handle assembly according to an embodiment of the present invention;
fig. 3 illustrates a cross-sectional view of an oral care handle assembly of an embodiment of the present invention; and
fig. 4 illustrates a schematic structural view of a mounting housing of an oral care handle assembly according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
1. a sonic motor; 2. a motor body; 3. a power take-off shaft; 4. an axial channel; 5. a first inlet; 6. a first outlet; 7. installing a shell; 8. a movement mounting part; 9. installing a frame; 10. a fluid mechanism; 11. a second inlet; 12. a second outlet; 13. a first installation bin; 14. a second mounting bin; 17. a first elastic projection; 18. a mounting seat; 19. installing a side plate; 20. a through groove; 21. a connecting arm; 22. mounting grooves; 23. a second elastic convex portion; 38. and a control panel.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-4, embodiments of the present invention provide a handle assembly for oral care. The oral care handle assembly includes a sonic motor 1, a fluid mechanism 10, and a mounting housing 7. The acoustic wave motor 1 comprises a motor body 2 and a power output shaft 3, wherein the motor body 2 is provided with an output axis extending along the power output direction; the power output shaft 3 is a cylindrical body extending along an output axis and penetrating through the motor body 2, the power output shaft 3 is configured to be matched with the motor body 2 and transmit the output power of the motor body 2, and the power output shaft 3 is provided with an axial channel 4 parallel to the output axis and a first inlet 5 and a first outlet 6 communicated with the axial channel 4; the fluid mechanism 10 has a second inlet 11 and a second outlet 12, the second outlet 12 being in communication with the first inlet 5; installation casing 7 extends along power output shaft 3's axial direction to form inside hollow tubular structure, installation casing 7 includes core installation department 8, be provided with installation frame 9 in the core installation department 8, installation frame 9 has first installation storehouse 13 and second installation storehouse 14, sound wave motor 1 installs in first installation storehouse 13, fluid mechanism 10 installs in second installation storehouse 14, and forms multiple spot elastic contact between the periphery of installation frame 9 and the inner wall of core installation department 8.
In the above technical solution, a multi-point elastic contact is formed between the outer periphery of the mounting frame 9 and the inner wall of the movement mounting part 8. In this embodiment, the periphery of the mounting frame 9 and the inner wall of the movement mounting portion 8 form a multipoint elastic contact, so that a damping fit can be formed between the mounting frame 9 and the movement mounting portion 8, because the first mounting bin 13 and the second mounting bin 14 are both located on the mounting frame 9, the vibrations of the sound wave motor 1 and the fluid mechanism 10 can be transmitted to the movement mounting portion 8 through the mounting frame 9, and the mounting frame 9 and the movement mounting portion 8 form a multipoint contact, so that when the vibrations are transmitted to the mounting shell 7 by all vibration sources, the concentrated points of the vibration sources can be dispersed to each contact point of the mounting frame 9 and the movement mounting portion 8, thereby dispersing the vibration effect, so that the whole vibration effect of the movement mounting portion 8 is weakened, the vibration noise is reduced, and a good damping effect is realized.
As shown in fig. 2 and 3, in the embodiment of the present invention, the periphery of the mounting frame 9 is provided with a plurality of first elastic protrusions 17 at intervals along the extending direction of the output axis, and the mounting frame 9 forms a multipoint elastic contact with the inner wall of the movement mounting portion 8 through the plurality of first elastic protrusions 17.
Among the above-mentioned technical scheme, a plurality of first elastic bulge 17 are arranged along the extending direction of output axis in proper order, can form a plurality of elastic contact point in proper order in the periphery of installation frame 9 for form good shock attenuation contact between the whole of installation frame 9 and core installation department 8, improve the shock attenuation effect. A plurality of first elasticity convex parts 17 can evenly be arranged to make the vibrations energy transmit the in-process to core installation department 8 by installation frame 9, energy distribution is more even, and the vibrations energy of transmitting to each contact point is more balanced, and the vibrations effect further weakens, and vibration/noise reduction effect is better.
As shown in fig. 2, in the embodiment of the present invention, the surface of the first elastic protrusion 17 facing the inner wall of the movement mounting portion 8 is arc-shaped.
Through the arrangement, the installation rack 9 can be effectively ensured to be in point contact or line contact with the machine core installation part 8 through the first elastic convex part 17, the contact area between the installation rack 9 and the machine core installation part 8 is reduced, the vibration transmission effect is weakened, and the damping effect is improved.
Specifically, the oral cleaning device further comprises a control board 38 in control connection with the acoustic wave motor 1 and the fluid mechanism 10.
As shown in fig. 2, in the embodiment of the present invention, the mounting frame 9 includes a mounting seat 18, the mounting seat 18 is provided with a first mounting bin 13, two opposite sides of the mounting seat 18 are respectively provided with a mounting side plate 19, the two mounting side plates 19 deviate from each other, and the first elastic protruding portion 17 is disposed on the edge of the mounting side plate 19 far away from the mounting seat 18.
Among the above-mentioned technical scheme, installation rack 9 utilizes and forms the installation clearance between mount pad 18 and the core installation department 8, conveniently carries out the installation of control panel 38 isotructure fixed, can provide enough installation space for the setting of control panel 38 isotructure, and the existence of installation curb plate 19 can conveniently realize the installation cooperation between mount pad 18 and the core installation department 8, under the fixed circumstances of installation that does not influence control panel 38 isotructure, realizes that mount pad 18 is fixed in the installation department 8 of core. Through set up one installation curb plate 19 respectively at two opposite sides of mount pad 18 to make installation curb plate 19 to the direction protrusion of keeping away from mount pad 18, can realize the installation of mount pad 18 through installation curb plate 19 and fix, form assembly space in the both sides of installation curb plate 19, realize the installation of control panel 38 isotructure, the structure sets up more rationally.
Because the mount pad 18 cooperates with the core installation portion 8 through the installation lateral plate 19, consequently, set up first elastic bulge 17 at one side edge of installing lateral plate 19 far away from mount pad 18, can make mount pad 18 only form multiple spot elastic contact through between the inner wall of first elastic bulge 17 and core installation portion 8, contact between other positions can not form with core installation portion 8, thereby guarantee that the vibrations of sound wave motor 1 and fluid mechanism 10 are after transmitting to mount pad 18, only can transmit to core installation portion 8 through first elastic bulge 17, consequently, can further improve the shock attenuation effect of mount pad 9, reduce the noise that damps.
As shown in fig. 2, in the embodiment of the present invention, the mounting side plate 19 is provided with a through groove 20 penetrating in the thickness direction, and the connecting arm 21 located on the side of the through groove 20 far away from the mounting seat 18 protrudes in the direction far away from the mounting seat 18 to form the first elastic protrusion 17.
In the above technical solution, the through groove 20 is a long-strip-shaped groove extending along the length direction of the mounting side plate 19, a connecting arm 21 is formed outside the long-strip-shaped groove, and the connecting arm 21 protrudes outwards at the middle position to form the first elastic protrusion 17. The connecting arm 21 is the even elastic construction of thickness, outwards forms the arc arch at the intermediate position, because the arc arch is located the connecting arm 21, and the connecting arm 21 is located logical groove 20's outside, therefore the connecting arm 21 is out of shape more easily, and the deformation volume is bigger, when receiving the shake action and using, can absorb the vibrations energy through the deformation of self more effectively, can further improve the shock attenuation effect.
As shown in fig. 4, in the embodiment of the present invention, a mounting groove 22 is provided on the inner wall of the movement mounting portion 8, the mounting groove 22 extends along the mounting direction of the mounting frame 9, and the mounting side plate 19 is clamped in the mounting groove 22.
Among the above-mentioned technical scheme, through set up mounting groove 22 on the inner wall of core installation department 8, can form guide structure, in core installation department 8 is packed into from the opening side of core installation department 8 to rack 9 easy to assemble, reduced the installation degree of difficulty, improved the installation effectiveness.
Preferably, in this embodiment, the two opposite inner walls of the movement mounting portion 8 are respectively provided with mounting grooves 22, so that a more balanced and reliable mounting guide and support structure can be formed.
Specifically, the mounting groove 22 may be formed as follows: two guide plates extending along the mounting direction of the mounting frame 9 are arranged on the inner wall of the core mounting part 8, the two guide plates extend from one end of the core mounting part 8 to the other end, and a mounting groove 22 is formed between the two guide plates.
Further, by arranging the installation groove 22, when the installation rack 9 is installed, the installation rack 9 can be guided and limited by the installation groove 22, and after the installation rack 9 is installed in place, a good positioning effect is achieved.
As shown in fig. 2 and 4, in the embodiment of the present invention, the second elastic protrusions 23 are disposed on two opposite sidewalls of the mounting side plate 19, the second elastic protrusions 23 protrude toward the sidewalls of the mounting groove 22, and the mounting side plate 19 forms a multi-point elastic contact with the sidewalls of the mounting groove 22 through the second elastic protrusions 23.
Among the above-mentioned technical scheme, after setting up mounting groove 22, form the face contact between the lateral wall of installation curb plate 19 and mounting groove 22, can increase vibrations transmission effect, lead to the shock attenuation effect to reduce, in order to avoid this problem, carry out the mode that sets up second elasticity convex part 23 on the complex lateral wall through two and mounting groove 22 at installation curb plate 19, can make and form multiple spot elastic contact between two lateral walls of installation curb plate 19 and the lateral wall of mounting groove 22, thereby reduce the vibrations transmission effect between the lateral wall of installation curb plate 19 and mounting groove 22, weaken the vibrations transmission effect between the lateral wall of installation curb plate 19 and mounting groove 22, make and form multiple spot elastic contact between installation frame 9 is whole and core installation department 8, play more effectual shock attenuation effect.
As shown in fig. 2, in the embodiment of the present invention, the surface of the second elastic protrusion 23 is arc-shaped.
Through the arrangement, the installation rack 9 can be effectively ensured to be in point contact or line contact with the machine core installation part 8 through the second elastic convex part 23, the contact area between the installation rack 9 and the machine core installation part 8 is reduced, the vibration transmission effect is weakened, and the damping effect is improved.
As shown in fig. 2, in the embodiment of the present invention, along the loading direction of the movement mounting portion 8, the first elastic protruding portion 17 and the second elastic protruding portion 23 are arranged in a staggered manner, so that the distribution of the elastic contact points is more evenly dispersed, the distribution of the damping force is optimized, and the damping effect is improved.
An embodiment of the utility model provides an oral care equipment, including foretell handle components and nursing head subassembly, the nursing head subassembly is used for clean oral cavity. The above-described oral care device includes all of the advantages of the above-described handle assembly, which are not described in detail herein.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: and multipoint elastic contact is formed between the periphery of the mounting frame and the inner wall of the movement mounting part. In this embodiment, the periphery of installation frame and the inner wall of core installation department form multiple spot elastic contact, make also can form the shock attenuation cooperation between installation frame and the core installation department, because first installation storehouse and second installation storehouse all are located the installation frame, therefore the vibrations of sound wave motor and fluid mechanism can transmit to the core installation department through the installation frame on, and installation frame and core installation department form multiple spot contact, can make all vibrations sources when transmitting vibrations to the installation casing, can form each contact point of installing frame and core installation department from the concentration point dispersion of vibrations source, thereby the dispersion vibrations effect, make the whole vibrations effect of core installation department weaken, vibration noise descends, realize good shock attenuation effect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An oral care handle assembly, comprising:
the sound wave motor (1) comprises a motor body (2) and a power output shaft (3), wherein the motor body (2) is provided with an output axis extending along a power output direction; the power output shaft (3) extends along the output axis and penetrates through the motor body (2), the power output shaft (3) is configured to be matched with the motor body (2) and transmit the output power of the motor body (2), and the power output shaft (3) is provided with an axial channel (4) parallel to the output axis and a first inlet (5) and a first outlet (6) which are communicated with the axial channel (4);
-a fluid mechanism (10) having a second inlet (11) and a second outlet (12), said second outlet (12) being in communication with said first inlet (5);
installation casing (7), follow the axial direction of power output shaft (3) extends, installation casing (7) are inside hollow tubular structure, installation casing (7) include core installation department (8) and are located installation frame (9) in core installation department (8), installation frame (9) have first installation storehouse (13) and second installation storehouse (14), sound wave motor (1) is installed in first installation storehouse (13), fluid mechanism (10) are installed in second installation storehouse (14), just the periphery of installation frame (9) with form multiple spot elastic contact between the inner wall of core installation department (8).
2. The handle assembly for oral care according to claim 1, wherein a plurality of first elastic protrusions (17) are provided at intervals on the outer periphery of the mounting frame (9) along the extending direction of the output axis, and the mounting frame (9) is in multi-point elastic contact with the inner wall of the cartridge mounting portion (8) through the plurality of first elastic protrusions (17).
3. Handle assembly for oral care according to claim 2, characterized in that the surface of the first resilient projection (17) facing the inner wall of the cartridge mount (8) is curved.
4. Handle assembly for oral care according to claim 2, characterized in that the mounting frame (9) comprises a mounting seat (18), the mounting seat (18) being provided with the first mounting compartment (13), two opposite sides of the mounting seat (18) being provided with mounting side plates (19), respectively, the two mounting side plates (19) facing away from each other, the first resilient projection (17) being provided at an edge of the mounting side plates (19) remote from the mounting seat (18).
5. The handle assembly for oral care according to claim 4, wherein the mounting side plate (19) is formed with a through groove (20) penetrating in a thickness direction, and a connecting arm (21) located on a side of the through groove (20) away from the mounting seat (18) is projected in a direction away from the mounting seat (18) to form the first elastic projection (17).
6. Handle assembly for oral care according to claim 4 or 5, characterized in that an installation slot (22) is provided on the inner wall of the cartridge mounting portion (8), said installation slot (22) extending in the mounting direction of the mounting frame (9), said mounting side plate (19) being snapped into said installation slot (22).
7. The handle assembly for oral care according to claim 6, wherein the mounting side plate (19) is provided with second elastic protrusions (23) on both opposite sidewalls thereof, the second elastic protrusions (23) protruding toward the sidewalls of the mounting groove (22), the mounting side plate (19) being in multi-point elastic contact with the sidewalls of the mounting groove (22) by the second elastic protrusions (23).
8. The oral care handle assembly according to claim 7, wherein the surface of the second resilient projection (23) is arcuate.
9. Handle assembly for oral care according to claim 7, characterized in that the first (17) and the second (23) resilient projections are arranged offset in the loading direction of the cartridge mounting portion (8).
10. An oral care device comprising a treatment head assembly for cleaning an oral cavity and the handle assembly of any one of claims 1 to 9.
CN202222069412.3U 2022-08-05 2022-08-05 Handle assembly for oral care and oral care equipment Active CN217853432U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222069412.3U CN217853432U (en) 2022-08-05 2022-08-05 Handle assembly for oral care and oral care equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222069412.3U CN217853432U (en) 2022-08-05 2022-08-05 Handle assembly for oral care and oral care equipment

Publications (1)

Publication Number Publication Date
CN217853432U true CN217853432U (en) 2022-11-22

Family

ID=84076409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222069412.3U Active CN217853432U (en) 2022-08-05 2022-08-05 Handle assembly for oral care and oral care equipment

Country Status (1)

Country Link
CN (1) CN217853432U (en)

Similar Documents

Publication Publication Date Title
CN108601443B (en) Electric tooth brush
CN217853432U (en) Handle assembly for oral care and oral care equipment
US20240041579A1 (en) Integrated oral care apparatus
CN211834830U (en) Integrated electric toothbrush convenient for replacing brush head
CN210095967U (en) Water pressure electric swing tooth flushing device
CN209863740U (en) Low-vibration cleaning brush
CN212816618U (en) Electric toothbrush capable of reducing vibration of handle
CN218247461U (en) Handle and oral cleaning device
CN112869902B (en) String vibration type mute sound wave electric toothbrush head
CN115224866A (en) Oral cleaning device
CN211381918U (en) Electric tooth brush
CN213722568U (en) Oral cavity cleaning device's shock-absorbing structure and oral cavity cleaning device
CN210697880U (en) Electric tooth brush
CN216495782U (en) Toothbrush head and electric toothbrush
CN215503516U (en) A frame for electric toothbrush
CN217448097U (en) Electric toothbrush main unit
CN214104277U (en) Face washing instrument
CN216365368U (en) Novel electric toothbrush
CN220833209U (en) Electric toothbrush handle
CN212756426U (en) Massage head assembly and neck massager with same
CN212816619U (en) Handle prevention of seepage water electric toothbrush
CN218718489U (en) Vibration/noise reduction structure and aromatherapy machine
CN221243099U (en) Low-noise electric toothbrush
CN213372668U (en) Electric toothbrush
CN218187012U (en) Tooth cleaning assembly

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant