CN217763166U - Ceiling lamp convenient to dismouting - Google Patents

Ceiling lamp convenient to dismouting Download PDF

Info

Publication number
CN217763166U
CN217763166U CN202221466793.2U CN202221466793U CN217763166U CN 217763166 U CN217763166 U CN 217763166U CN 202221466793 U CN202221466793 U CN 202221466793U CN 217763166 U CN217763166 U CN 217763166U
Authority
CN
China
Prior art keywords
base
limiting
ceiling lamp
fastening bolt
spacing
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
CN202221466793.2U
Other languages
Chinese (zh)
Inventor
李传贵
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.)
Jiangmen Yunju Lighting Technology Co ltd
Original Assignee
Jiangmen Yunju Lighting 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 Jiangmen Yunju Lighting Technology Co ltd filed Critical Jiangmen Yunju Lighting Technology Co ltd
Priority to CN202221466793.2U priority Critical patent/CN217763166U/en
Application granted granted Critical
Publication of CN217763166U publication Critical patent/CN217763166U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The utility model discloses a ceiling lamp convenient to dismouting involves the lighting technology field, the on-line screen storage device comprises a base, a plurality of key holes and a plurality of first mounting hole have been seted up on the base, the base through install in the key hole with fastening bolt and roof fixed connection in the first mounting hole, the top inner wall fixedly connected with of institute base with the key hole with the spacing apron of first mounting hole quantity looks adaptation. The utility model discloses a set up second stop collar and spacing apron, make the installer when dismantling the ceiling lamp, only need support the base, can accomplish fastening bolt's dismantlement through screwdriver or electric screwdriver, fastening bolt after the dismantlement can stay in second stop collar, take place losing of fastening bolt after avoiding dismantling, stability when guarantee ceiling lamp is installed once more, reduce the risk of use after the ceiling lamp is installed once more, can get by spacing fastening bolt in second stop collar in the installation simultaneously, moreover, the steam generator is simple in structure, it is convenient to use.

Description

Ceiling lamp convenient to dismouting
Technical Field
The utility model relates to the field of lighting technology, in particular to ceiling lamp convenient to dismouting.
Background
The ceiling lamp is one of lamps, and is called as the ceiling lamp as the name suggests that the upper part of the lamp is flat, and the bottom of the lamp is completely attached to the roof when the lamp is installed, a light source comprises a common white bulb, a fluorescent lamp, a high-intensity gas discharge lamp, a halogen tungsten lamp, an LED and the like, the most popular lamp in the market is the LED ceiling lamp, and the LED ceiling lamp is a lamp frequently selected in various places such as families, offices, entertainment places and the like.
The bolt fastening is adopted on the roof mostly to current ceiling lamp, when needs are dismantled to ceiling lamp, can directly dismantle through screwdriver or electric screwdriver, this kind of dismantlement mode is though convenient, the screw of dismantling falls to the ground from screwdriver top or electric screwdriver top because of spacing not enough easily, the probability that the bolt was lost easily increases, stability reduces when the bolt that lacks can lead to ceiling lamp reinstallation, increase the risk of use of ceiling lamp, influence the secondary installation of ceiling lamp, therefore, this application provides a ceiling lamp convenient to dismouting and satisfies the demand.
SUMMERY OF THE UTILITY MODEL
An object of the application provides a ceiling lamp convenient to dismouting to when solving current ceiling lamp and dismantling, the screw of dismantling drops from screwdriver top or electric screwdriver top because of spacing not enough easily and weighs down to ground, easily increases the probability that the bolt is lost, and stability reduces when the bolt that lacks can lead to ceiling lamp reinstallation, increases the use risk of ceiling lamp, influences the problem of the secondary installation of ceiling lamp.
In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a ceiling lamp convenient to dismouting, includes a ceiling lamp convenient to dismouting, the on-line screen storage device comprises a base, a plurality of key holes and a plurality of first mounting hole have been seted up on the base, the base through install in the key hole with fastening bolt and roof fixed connection in the first mounting hole, the top inner wall fixedly connected with of base with the key hole with the spacing apron of first mounting hole quantity looks adaptation, the joint has the second spacing sleeve who is used for collecting fastening bolt in the spacing apron, the second spacing sleeve is kept away from the one end of base has been seted up tool mouth, a plurality of viewing apertures have been seted up on the second spacing sleeve.
Preferably, the inner diameter of the tool opening is smaller than the outer diameter of a nut of the fastening bolt, and a plurality of anti-slip threads are fixedly connected to the second limiting sleeve.
Preferably, the second limiting sleeve and the fastening bolt are coaxial, clamping blocks are fixedly connected to two sides of the second limiting sleeve, one side of the limiting cover plate is hollowed out, second limiting grooves are formed in inner walls of two sides of the hollowed-out position of the limiting cover plate, and the second limiting grooves are clamped with the clamping blocks.
Preferably, the key hole and the two sides of the first mounting hole are fixedly connected with a first limiting block, and the first limiting block is abutted against one side of the limiting cover plate.
Preferably, the top inner wall fixedly connected with of base has a plurality of first spacing sleeves, first spacing sleeve has spacing bolt through the threaded in-connection, spacing bolt runs through spacing apron, spacing bolt's nut department with spacing apron is contradicted.
Preferably, the plurality of key holes are in mirror symmetry about the center of the base, and the small hole ends of the key holes are provided with first limiting grooves.
Preferably, first through-hole has been seted up at the top of base, the top inner wall fixedly connected with COB lamp area, relay, the controller of base, COB lamp area the relay the controller passes through wire electric connection, the wire runs through first through-hole.
Preferably, a plurality of process holes are formed in the base, and the lamp housing is fixedly connected in the base.
To sum up, the utility model discloses a technological effect and advantage:
1. the utility model has reasonable structure, and the detachable fastening bolt can be detached by a screwdriver or an electric screwdriver only by supporting the base through the arrangement of the second limiting sleeve when the ceiling lamp is detached by an installer, and the detached fastening bolt can be left in the second limiting sleeve, so that the fastening bolt is prevented from being lost after detachment, the stability of the ceiling lamp during secondary installation is ensured, and the use risk of the ceiling lamp after secondary installation is reduced;
2. the utility model discloses in, through setting up second stop collar and spacing apron, all dismantle the completion back when all fastening bolt, accessible extrusion second stop collar's both sides make second stop collar take place to deform to drive the fixture block and break away from with the second spacing groove, can get by spacing fastening bolt in second stop collar afterwards, simple structure, it is convenient to use.
3. The utility model discloses in, through setting up the second stop collar, when needs are in another position department installation ceiling lamp, the partly fastening bolt of a plurality of second stop collar storages of accessible to convenient to use avoids the installer to scatter attention for looking for the bolt in the installation, thereby increases the installation risk.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a perspective view of a ceiling lamp for easy assembly and disassembly;
FIG. 2 is a schematic view of a ceiling lamp with a lamp housing removed for easy assembly and disassembly;
FIG. 3 is a perspective view of the base;
FIG. 4 is an enlarged perspective view of the position-limiting cover plate;
fig. 5 is an enlarged perspective view of the second limiting sleeve.
In the figure: 1. a base; 2. a keyhole; 3. a first limit groove; 4. a first mounting hole; 5. a first stopper; 6. a first limit sleeve; 7. a limiting cover plate; 8. a limit bolt; 9. a second limit groove; 10. a second limit sleeve; 11. a clamping block; 12. a tool port; 13. a viewing port; 14. anti-skid lines; 15. a first through hole; 16. a COB lamp belt; 17. a relay; 18. a controller; 19. a fabrication hole; 20. a lamp housing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b): referring to fig. 1-4, a ceiling lamp convenient to disassemble and assemble is shown, which includes a base 1, the base 1 is provided with a plurality of key holes 2 and a plurality of first mounting holes 4, as an implementation manner of this embodiment, the number of the key holes 2 and the number of the first mounting holes 4 are two, the base 1 is fixedly connected to a roof through fastening bolts installed in the key holes 2 and the first mounting holes 4, the inner wall of the top of the base 1 is fixedly connected to a limiting cover plate 7 in a number matched with the number of the key holes 2 and the first mounting holes 4, a second limiting sleeve 10 for collecting the fastening bolts is clamped in the limiting cover plate 7, one end of the second limiting sleeve 10 away from the base 1 is provided with a tool opening 12, the second limiting sleeve 10 is provided with a plurality of observation openings 13, the supporting strength of the second limiting sleeve 10 is reduced through the observation openings 13, and the deformation amount of the second limiting sleeve 10 generated when the second limiting sleeve 10 is extruded is improved; the base 1 is provided with a plurality of process holes 19, the overall quality of the base 1 is reduced by arranging the second limiting groove 9, the installation difficulty of the base 1 is reduced, the base 1 is internally and fixedly connected with a lamp housing 20, and the connection mode of the lamp housing 20 and the base 1 is the prior art, such as clamping connection of a buckle or threaded connection.
When the ceiling lamp needs to be disassembled, the lamp shell 20 is separated from the base 1 after the lamp shell 20 is rotated, then a screwdriver or an electric screwdriver penetrates through the tool opening 12 to be connected with the fastening bolt, whether the screwdriver or the screwdriver is connected with the fastening bolt can be quickly observed through the observation opening 13, after the screwdriver or the electric screwdriver is connected with the bolt, the screwdriver or the electric screwdriver is rotated to enable the fastening bolt to be separated from the expansion pipe fixed on the roof, after the fastening bolt is separated from the expansion pipe, the screwdriver or the electric screwdriver is pulled downwards, the fastening bolt is limited in the second limiting sleeve 10 under the limiting of the inner wall of the second limiting sleeve 10, meanwhile, the base 1 can be supported by the other hand in the process, the base 1 is prevented from falling to the ground after the fastening bolts are separated from the expansion pipe, through the structural design, when an installer dismantles the ceiling lamp, the disassembling of the ceiling lamp only needs to support the base 1, the disassembling of the fastening bolt can be completed through the screwdriver or the electric screwdriver, the dismantled fastening bolt can be remained in the second limiting sleeve 10, the loss of the fastening bolt after the disassembling is avoided, the loss of the ceiling lamp is guaranteed, and the using risk of the ceiling lamp after the reinstallation is reduced.
As shown in fig. 2, 4 and 5, in the present embodiment, the inner diameter of the tool opening 12 is smaller than the outer diameter of the nut of the fastening bolt, and a plurality of anti-slip threads 14 are fixedly connected to the second limiting sleeve 10; the second limiting sleeve 10 and the fastening bolt are coaxial, the clamping block 11 is fixedly connected to the two sides of the second limiting sleeve 10, one side of the limiting cover plate 7 is hollowed out, the inner walls of the two sides of the hollowed-out part of the limiting cover plate 7 are provided with second limiting grooves 9, and the second limiting grooves 9 are clamped with the clamping block 11.
After all fastening bolt all dismantled the completion, accessible extrusion second limit sleeve 10's both sides make second limit sleeve 10 take place deformation to drive fixture block 11 and second spacing groove 9 and break away from, can get by spacing fastening bolt in second limit sleeve 10 afterwards, simple structure, it is convenient to use.
As shown in fig. 2-4, in this embodiment, both sides of the keyhole 2 and the first mounting hole 4 are fixedly connected with a first limiting block 5, and the first limiting block 5 abuts against one side of a limiting cover plate 7; a plurality of first limiting sleeves 6 are fixedly connected to the inner wall of the top of the base 1, the first limiting sleeves 6 are connected with limiting bolts 8 through threads, the limiting bolts 8 penetrate through limiting cover plates 7, and nuts of the limiting bolts 8 are abutted to the limiting cover plates 7.
When two first stoppers 5 that contradict with spacing apron 7 make to cooperate first spacing sleeve 6 to install spacing apron 7 through spacing bolt 8, pivoted spacing bolt 8 can not drive spacing apron 7 and take place to deflect to the guarantee is with the axial center of the spacing sleeve 10 of second spacing groove 9 joint all the time with the fastening bolt coaxial line, and then the effective collection of the spacing sleeve 10 of guarantee second to fastening bolt.
As shown in fig. 3, in the present embodiment, a plurality of key holes 2 are mirror-symmetrical with respect to the center of the base 1, and the small hole ends of the key holes 2 are all provided with first limiting grooves 3; first through-hole 15 has been seted up at base 1's top, and base 1's top inner wall fixedly connected with COB lamp area 16, relay 17, controller 18, COB lamp area 16, relay 17, controller 18 pass through wire electric connection, and the wire runs through first through-hole 15, COB lamp area 16, relay 17, controller 18 are prior art, can adjust COB lamp light in lamp area 16 through controller 18.
When the ceiling lamp is required to be installed at another position, the base 1 is firstly clung to the roof, a marking pen penetrates through the key hole 2 and the first installation hole 4 to mark and mark on the roof, then the base 1 is taken down, the hole is tapped through an electric drill, an expansion pipe is driven into the hole, then a fastening bolt is screwed into the expansion pipe positioned and installed through the key hole 2, at the moment, attention is required to be paid, the nut of the fastening bolt needs to keep a certain distance with the roof, then the base 1 is clung to the roof again, the key hole 2 penetrates through the fastening bolt and then rotates until the fastening bolt is abutted against the inner wall of one end of the key hole 2, at the moment, the nut of the fastening bolt is positioned in the first limiting groove 3 to limit the base 1, and compared with the prior art, the bolt is directly abutted against the inner wall of the top of the base 1, spacing stability is stronger, avoid installer to support the back to base 1 because of the sour pain cancellation of arm in the installation, base 1 takes place to take off and takes off and drop, guarantee installation's security, tighten the fastening bolt in the keyhole 2, and through first spacing groove 3 to the intraductal installation fastening bolt of expansion, with the complete fixation of realization base 1, wire and home electric wire connection later, at last with lamp body 20 and base 1 fixed connection through the pivoted mode, accomplish the installation of ceiling lamp, and simultaneously, still can save partly fastening bolt through a plurality of second spacing sleeves 10 in the installation, so that the use, avoid installer to scatter attention for looking for the bolt in the installation, thereby cause the installation risk.
The first time ceiling lamp of installation time is the same with this mounting means, and second spacing sleeve 10 breaks away from with spacing apron 7 in the installation simultaneously, can be manual after accomplishing the installation with second spacing sleeve 10 and 7 joint of spacing apron, avoids causing the interference to the spiro union of fastening bolt and expansion pipe in the installation.
The technical scheme provided by the utility model, when needing to dismantle ceiling lamp, rotate lamp body 20 back and base 1 separation, pass instrument mouth 12 and fastening bolt joint with screwdriver or electric screwdriver afterwards, can observe screwdriver or screwdriver and fastening bolt joint fast through viewing aperture 13, after screwdriver or electric screwdriver and bolt joint, it breaks away from with the expansion pipe of fixing on the roof to rotate screwdriver or electric screwdriver, after fastening bolt and expansion pipe break away from, stimulate screwdriver or electric screwdriver downwards, make fastening bolt restricted in second limiting sleeve 10 under the spacing of second limiting sleeve 10 inner wall, simultaneously this in-process can be held base 1 with another hand, avoid base 1 to ground after a plurality of fastening bolt and expansion pipe break away from, through last structural design, make installer when dismantling ceiling lamp, only need hold base 1, can accomplish fastening bolt's dismantlement through screwdriver or electric screwdriver, fastening bolt after dismantling can stay in second limiting sleeve 10, avoid taking place the loss of fastening bolt after dismantling, the ceiling lamp that the stability when guaranteeing to install once more reduces the ceiling lamp use risk once more.
After all fastening bolts are all dismantled, accessible extrusion second limit sleeve 10's both sides make second limit sleeve 10 take place deformation to drive fixture block 11 and second spacing groove 9 and break away from, can get the fastening bolt who is spacing in second limit sleeve 10 afterwards and use, simple structure, it is convenient to use.
When two first stoppers 5 that contradict with spacing apron 7 make to cooperate first spacing sleeve 6 to install spacing apron 7 through spacing bolt 8, pivoted spacing bolt 8 can not drive spacing apron 7 and take place to deflect to the guarantee is with the axial center of the spacing sleeve 10 of second spacing groove 9 joint all the time with the fastening bolt coaxial line, and then the effective collection of the spacing sleeve 10 of guarantee second to fastening bolt.
When the ceiling lamp is required to be installed at another position, the base 1 is firstly clung to the roof, a marking pen penetrates through the key hole 2 and the first installation hole 4 to mark and mark on the roof, then the base 1 is taken down, the hole is tapped through an electric drill, an expansion pipe is driven into the hole, then a fastening bolt is screwed into the expansion pipe positioned and installed through the key hole 2, at the moment, attention is required to be paid, the nut of the fastening bolt needs to keep a certain distance with the roof, then the base 1 is clung to the roof again, the key hole 2 penetrates through the fastening bolt and then rotates until the fastening bolt is abutted against the inner wall of one end of the key hole 2, at the moment, the nut of the fastening bolt is positioned in the first limiting groove 3 to limit the base 1, and compared with the prior art, the bolt is directly abutted against the inner wall of the top of the base 1, spacing stability is stronger, avoid installer to support the back to base 1 because of the sour pain cancellation of arm in the installation, base 1 takes place to take off and takes off and drop, guarantee installation's security, tighten the fastening bolt in the keyhole 2, and through first spacing groove 3 to the intraductal installation fastening bolt of expansion, with the complete fixation of realization base 1, wire and home electric wire connection later, at last with lamp body 20 and base 1 fixed connection through the pivoted mode, accomplish the installation of ceiling lamp, and simultaneously, still can save partly fastening bolt through a plurality of second spacing sleeves 10 in the installation, so that the use, avoid installer to scatter attention for looking for the bolt in the installation, thereby cause the installation risk.
The first time ceiling lamp of installation time is the same with this mounting means, and second spacing sleeve 10 breaks away from with spacing apron 7 in the installation simultaneously, can be manual after accomplishing the installation with second spacing sleeve 10 and 7 joint of spacing apron, avoids causing the interference to the spiro union of fastening bolt and expansion pipe in the installation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (8)

1. The utility model provides a ceiling lamp convenient to dismouting which characterized in that includes: base (1), a plurality of key holes (2) and a plurality of first mounting hole (4) have been seted up on base (1), base (1) through install in key hole (2) with fastening bolt and roof fixed connection in first mounting hole (4), the top inner wall fixed connection of base (1) with key hole (2) with spacing apron (7) of first mounting hole (4) quantity looks adaptation, the joint has second spacing sleeve (10) that are used for collecting fastening bolt in spacing apron (7), keep away from second spacing sleeve (10) instrument mouth (12) have been seted up to the one end of base (1), a plurality of viewing apertures (13) have been seted up on second spacing sleeve (10).
2. The ceiling lamp convenient to disassemble and assemble as claimed in claim 1, wherein the inner diameter of the tool opening (12) is smaller than the outer diameter of a nut of a fastening bolt, and a plurality of anti-skid threads (14) are fixedly connected to the second limiting sleeve (10).
3. The ceiling lamp convenient to disassemble and assemble according to claim 1, wherein the second limiting sleeve (10) and the fastening bolt are coaxial, clamping blocks (11) are fixedly connected to two sides of the second limiting sleeve (10), one side of the limiting cover plate (7) is hollowed out, second limiting grooves (9) are formed in inner walls of two sides of the hollowed-out position of the limiting cover plate (7), and the second limiting grooves (9) are clamped with the clamping blocks (11).
4. The ceiling lamp convenient to disassemble and assemble according to claim 1, wherein the two sides of the key hole (2) and the first mounting hole (4) are fixedly connected with a first limiting block (5), and the first limiting block (5) is abutted against one side of the limiting cover plate (7).
5. The ceiling lamp convenient to disassemble and assemble according to claim 1, wherein a plurality of first limiting sleeves (6) are fixedly connected to the inner wall of the top of the base (1), the first limiting sleeves (6) are connected with limiting bolts (8) through threads, the limiting bolts (8) penetrate through the limiting cover plate (7), and nuts of the limiting bolts (8) are abutted to the limiting cover plate (7).
6. The ceiling lamp convenient to disassemble and assemble according to claim 1, wherein the plurality of key holes (2) are mirror-symmetrical about the center of the base (1), and the small hole ends of the key holes (2) are provided with first limiting grooves (3).
7. The ceiling lamp convenient to dismouting of claim 1, characterized in that, first through-hole (15) have been seted up at the top of base (1), the top inner wall fixedly connected with COB lamp area (16), relay (17), controller (18) of base (1), COB lamp area (16) relay (17) controller (18) pass through wire electric connection, the wire runs through first through-hole (15).
8. The ceiling lamp convenient to disassemble and assemble according to claim 1, wherein the base (1) is provided with a plurality of process holes (19), and a lamp housing (20) is fixedly connected in the base (1).
CN202221466793.2U 2022-06-13 2022-06-13 Ceiling lamp convenient to dismouting Active CN217763166U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221466793.2U CN217763166U (en) 2022-06-13 2022-06-13 Ceiling lamp convenient to dismouting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221466793.2U CN217763166U (en) 2022-06-13 2022-06-13 Ceiling lamp convenient to dismouting

Publications (1)

Publication Number Publication Date
CN217763166U true CN217763166U (en) 2022-11-08

Family

ID=83893107

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221466793.2U Active CN217763166U (en) 2022-06-13 2022-06-13 Ceiling lamp convenient to dismouting

Country Status (1)

Country Link
CN (1) CN217763166U (en)

Similar Documents

Publication Publication Date Title
US5716125A (en) Fluorescent retrofit light fixture
US7645055B2 (en) Luminaire optical assembly
CN217763166U (en) Ceiling lamp convenient to dismouting
US10527232B2 (en) LED bulb adapters and methods of retrofitting LED bulbs
US7950822B2 (en) Detachable ballast housing
US7001039B1 (en) Retrofit light fixture mounting device
US2287565A (en) Electric lighting fixture
CN206361653U (en) A kind of rotatable interface and Modular LED light fixture
CN205655193U (en) Quick assembly disassembly's ceiling lamp
GB2417370A (en) Light fitting for use with existing pendant bulb holder
CN219160232U (en) Simple household ceiling lamp convenient to disassemble, assemble and maintain
CN206488104U (en) The desk lamp of multipurpose
CN217109324U (en) Ceiling lamp quick assembly disassembly mechanism
CN214369683U (en) Ceiling lamp mounting structure
CN216431463U (en) Novel shell fragment formula fixed knot constructs and ceiling lamp
CN218064755U (en) Lamp convenient to mount
CN205261301U (en) Outdoor movie & TV are shot with portable lamp of pull formula
CN212869477U (en) Mining electrical lighting equipment
US9341351B2 (en) Universal mounting system for pole mounted area lights
CN213394859U (en) Lamp with conveniently-detached grating and diffusion plate
CN216408900U (en) Lamp with internal wire arrangement structure
CN216431465U (en) Key hole installation fixed knot constructs and ceiling lamp
CN219550396U (en) Lamp mounted by magnet
CN213900869U (en) OLED paillette device
CN215411605U (en) Ceiling lamp convenient to dismouting

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant