CN219371803U - Adjustable electrical device support - Google Patents

Adjustable electrical device support Download PDF

Info

Publication number
CN219371803U
CN219371803U CN202320337534.8U CN202320337534U CN219371803U CN 219371803 U CN219371803 U CN 219371803U CN 202320337534 U CN202320337534 U CN 202320337534U CN 219371803 U CN219371803 U CN 219371803U
Authority
CN
China
Prior art keywords
fixedly connected
base
electrical equipment
electrical device
sides
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
CN202320337534.8U
Other languages
Chinese (zh)
Inventor
李东
姚海军
张明
刘军华
杨彬彬
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.)
Anhui Jinmei Zhongneng Chemical Co Ltd
Original Assignee
Anhui Jinmei Zhongneng Chemical 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 Anhui Jinmei Zhongneng Chemical Co Ltd filed Critical Anhui Jinmei Zhongneng Chemical Co Ltd
Priority to CN202320337534.8U priority Critical patent/CN219371803U/en
Application granted granted Critical
Publication of CN219371803U publication Critical patent/CN219371803U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Landscapes

  • Patch Boards (AREA)

Abstract

The utility model discloses an adjustable electric device bracket which comprises a base, wherein mounting plates are fixedly connected to the bottoms of two sides of the base, bracket bodies are fixedly connected to two sides of the top of the base, and adjusting mechanisms are fixedly connected to the opposite sides of the two bracket bodies. According to the utility model, through the matched use of the base, the mounting plate, the bracket body, the adjusting mechanism, the distribution box body, the limiting block, the sliding rod, the sliding sleeve, the spring, the first positioning frame, the adjusting rod, the second positioning frame, the protecting shell, the threaded hole, the bolt, the limiting plate and the supporting rod, the problems that the conventional electrical equipment is inconvenient to adjust the height of the electrical equipment after being mounted, the bottom of the electrical equipment is contacted with the ground for a long time, so that moisture enters the internal circuit of the electrical equipment to cause corrosion damage and inconvenience to maintenance and overhaul of operators, the protecting performance of the electrical equipment is poor, and the electrical equipment is easy to damage when in severe weather such as hail and the like are solved.

Description

Adjustable electrical device support
Technical Field
The utility model belongs to the technical field of electrical equipment, and particularly relates to an adjustable electrical device bracket.
Background
The electric equipment is a generic name for equipment such as a generator, a transformer, a power line, a circuit breaker and the like in an electric power system, the important role of electric power in our life and production cannot be ignored, great convenience is brought to us, the electric equipment becomes an important energy source in our production and life, the most critical factor for enabling the electric power to normally run and be conveyed in a power plant is the electric equipment, and the electric equipment needs to be fixedly installed through a bracket when in use, so that an adjustable electric device bracket is needed in the technical field of the electric equipment.
At present, the distribution box installing support structure comprises an installing plate and four supporting legs arranged at four corners of the installing plate, the distribution box is arranged on the installing plate, the four supporting legs comprise threaded columns and screw rods, the screw rods and the threaded columns are vertically arranged, the threaded columns are provided with threaded holes with openings upwards, the screw rods are in threaded connection with the threaded columns through the threaded holes, the distribution box installing support structure further comprises a driving mechanism and a synchronous transmission mechanism, the driving mechanism is used for outputting power, and the synchronous transmission mechanism is used for synchronously transmitting the power output by the driving mechanism to the screw rods of the four supporting legs so that the four screw rods synchronously rotate. The height of the supporting legs is adjustable, so that the supporting legs can adapt to operators with different heights to overhaul the distribution box.
Based on the retrieval of the above patent and the discovery of the bracket in combination with the prior art, the bracket can realize the adjustment of the height of the electrical equipment when in use, thereby being convenient for operators with different heights to overhaul the electrical equipment, but the prior electrical equipment has poor protective performance, and can damage the outer shell of the electrical equipment when encountering severe weather such as hail, thereby affecting the normal use of the electrical equipment.
According to the adjustable electric device bracket provided by the utility model, the height of the electric device can be adjusted by arranging the adjusting mechanism, so that operators with different heights can conveniently maintain and overhaul the electric device, the bottom of the electric device is prevented from being wetted and damaged due to contact between the electric device and the ground, meanwhile, the protective shell can protect the electric device, and the electric device is prevented from being damaged by severe weather, so that the service life of the electric device is prolonged.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides the adjustable electric device bracket which is provided with the functions of adjusting the height of electric equipment, facilitating maintenance and overhaul of operators with different heights and preventing the bottom of the electric equipment from being wetted, so that the electric equipment is damaged, and the electric equipment can be protected through the protective shell, thereby avoiding the damage to the electric equipment caused by severe weather.
The utility model discloses an adjustable electric device support, which comprises a base, wherein mounting plates are fixedly connected to the bottoms of two sides of the base, support bodies are fixedly connected to two sides of the top of the base, adjusting mechanisms are fixedly connected to the opposite sides of the two support bodies, each adjusting mechanism comprises two motors and two positioning plates, a distribution box body is fixedly connected between one opposite sides of the two positioning plates, four corners of the top of the distribution box body are fixedly connected with limiting blocks, sliding rods are fixedly connected between one opposite side of each two limiting blocks, sliding sleeves are movably connected to the surfaces of the sliding rods, the number of the sliding sleeves is four, springs are fixedly connected to one opposite side of each two sliding sleeves, the opposite sides of each two springs are fixedly connected with the limiting blocks, the tops of the four sliding sleeves are fixedly connected with first positioning frames, inner cavities of the four first positioning frames are movably connected with adjusting rods through rotating shafts, the tops of the four adjusting rods are movably connected with second positioning frames through rotating shafts, and protective cases are fixedly connected between the tops of the four second positioning frames.
As the utility model, preferably, one side opposite to the two motors is fixedly connected with the bracket body, the output ends of the two motors penetrate through the inner cavity of the bracket body and are fixedly connected with first bevel gears, the tops of the two first bevel gears are respectively connected with second bevel gears in a meshed mode, the bottoms of the two second bevel gears are respectively fixedly connected with limiting rods, the bottoms of the two limiting rods are respectively movably connected with the inner wall of the bracket body through shaft pins, the tops of the two second bevel gears are respectively fixedly connected with threaded rods, the tops of the two threaded rods are respectively movably connected with the inner wall of the bracket body, the surfaces of the two threaded rods are respectively connected with a threaded sleeve in a threaded mode, and one side opposite to the two threaded sleeves respectively penetrates through the outer side of the bracket body and is fixedly connected with the positioning plate.
As the preferable mode of the utility model, the surfaces of the two motors are respectively sleeved with the limiting rings, and one sides of the two limiting rings, which are close to the bracket body, are fixedly connected with the bracket body.
As the preferable mode of the utility model, screw holes are formed on the front side and the rear side of the tops of the two mounting plates, and the inner cavities of the four screw holes are connected with bolts in a threaded manner.
As the preferable mode of the utility model, the tops of the two mounting plates are fixedly connected with limiting plates, and one side of the two opposite limiting plates is fixedly connected with the base.
As the preferable mode of the utility model, the top parts of the two sides of the distribution box body are respectively provided with a heat dissipation groove, and the inner cavities of the two heat dissipation grooves are respectively provided with a filter screen.
As the preferable mode of the utility model, the supporting rods are fixedly connected between the opposite sides of every two second locating frames, and the tops of the two supporting rods are fixedly connected with the inner wall of the protective shell.
1. According to the utility model, through the matched use of the base, the mounting plate, the bracket body, the adjusting mechanism, the distribution box body, the limiting block, the sliding rod, the sliding sleeve, the spring, the first positioning frame, the adjusting rod, the second positioning frame, the protecting shell, the threaded hole, the bolt, the limiting plate and the supporting rod, the problems that the conventional electrical equipment is inconvenient to adjust the height of the electrical equipment after being mounted, the bottom of the electrical equipment is contacted with the ground for a long time, so that moisture enters the internal circuit of the electrical equipment to cause corrosion damage and inconvenience to maintenance and overhaul of operators, the protecting performance of the electrical equipment is poor, and the electrical equipment is easy to damage when in severe weather such as hail and the like are solved.
2. According to the utility model, through the matched use of the motor, the first bevel gear, the second bevel gear, the limiting rod, the threaded rod, the thread bushing and the positioning plate, when an operator needs to adjust the height of the distribution box body, the motor is firstly opened, the output end of the motor drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate when rotating, the second bevel gear drives the threaded rod to rotate when rotating, the threaded rod drives the thread bushing to move upwards when rotating, the thread bushing drives the positioning plate to move upwards when moving upwards, and the positioning plate drives the distribution box body to move upwards when moving upwards, so that the height of the distribution box body can be adjusted, the maintenance and overhaul of operators with different heights can be facilitated, meanwhile, the problem that moisture enters the distribution box body to cause corrosion damage to a circuit can be avoided, and through the limiting ring, the limiting effect of the motor is achieved, and meanwhile, falling or displacement of the motor is prevented when in use.
3. The utility model plays a role in fixing the mounting plate through the matching use of the threaded holes and the bolts, is convenient for operators to install, plays a role in fixing the mounting plate through the limiting plate, prevents the mounting plate from falling off or displacing when in use, plays a role in radiating and dustproof the distribution box body through the matching use of the radiating grooves and the filter screen, simultaneously prevents damage to internal parts caused by overhigh use temperature of the distribution box body for a long time, plays a role in limiting the second positioning frame through the supporting rod, and prevents the second positioning frame from displacing when in use.
Drawings
FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present utility model;
FIG. 2 is a front cross-sectional split view provided by an embodiment of the present utility model;
fig. 3 is a front cross-sectional view of a partial structure provided by an embodiment of the present utility model.
In the figure: 1. a base; 2. a mounting plate; 3. a bracket body; 4. an adjusting mechanism; 401. a motor; 402. a first bevel gear; 403. a second bevel gear; 404. a limit rod; 405. a threaded rod; 406. a thread sleeve; 407. a positioning plate; 408. a limiting ring; 5. a distribution box body; 6. a limiting block; 7. a slide bar; 8. a sliding sleeve; 9. a spring; 10. a first positioning frame; 11. an adjusting rod; 12. a second positioning frame; 13. a protective shell; 14. a threaded hole; 15. a bolt; 16. a limiting plate; 17. and (5) supporting the rod.
Description of the embodiments
For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.
The structure of the present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, an adjustable electrical device support provided by the embodiment of the utility model comprises a base 1, wherein the bottoms of two sides of the base 1 are fixedly connected with mounting plates 2, two sides of the top of the base 1 are fixedly connected with support bodies 3, two opposite sides of the two support bodies 3 are fixedly connected with adjusting mechanisms 4, the two adjusting mechanisms 4 comprise two motors 401 and two positioning plates 407, an electrical distribution box body 5 is fixedly connected between opposite sides of the two positioning plates 407, four corners of the top of the electrical distribution box body 5 are fixedly connected with limiting blocks 6, sliding rods 7 are fixedly connected between opposite sides of each two limiting blocks 6, sliding sleeves 8 are movably connected with surfaces of the sliding rods 7, the number of the sliding sleeves 8 is four, one opposite sides of each two sliding sleeves 8 are fixedly connected with springs 9, one opposite sides of each two springs 9 are fixedly connected with the limiting blocks 6, the tops of the four sliding sleeves 8 are fixedly connected with first positioning frames 10, inner cavities of the four first positioning frames 10 are movably connected with adjusting rods 11 through rotating shafts, the tops of the four adjusting rods 11 are movably connected with second positioning frames 12 through rotating shafts, and the top of the four second positioning frames 12 are fixedly connected with protective shells 13 between the tops of the four positioning frames 12.
Referring to fig. 1, fig. 2 and fig. 3, opposite sides of two motors 401 are fixedly connected with a support body 3, output ends of the two motors 401 penetrate through an inner cavity of the support body 3 and are fixedly connected with first bevel gears 404, tops of the two first bevel gears 404 are respectively connected with second bevel gears 403 in a meshed mode, bottoms of the two second bevel gears 403 are respectively fixedly connected with a limiting rod 402, bottoms of the two limiting rods 402 are respectively movably connected with an inner wall of the support body 3 through shaft pins, tops of the two second bevel gears 403 are respectively fixedly connected with a threaded rod 405, tops of the two threaded rods 405 are respectively movably connected with an inner wall of the support body 3, surfaces of the two threaded rods 405 are respectively connected with a threaded sleeve 406, opposite sides of the two threaded sleeves 406 are respectively penetrated through the outer side of the support body 3 and are respectively fixedly connected with a positioning plate 407, surfaces of the two motors 401 are respectively sleeved with a limiting ring 408, and one side of the two limiting rings 408, which is close to the support body 3, is respectively fixedly connected with the support body 3.
The scheme is adopted: through the cooperation of motor 401, first bevel gear 404, second bevel gear 403, gag lever post 402, threaded rod 405, thread bush 406 and locating plate 407 is used, when operating personnel need highly adjust to block terminal body 5, at first, make its operation work with the motor 401 circular telegram, the output of motor 401 drives first bevel gear 404 and rotates, first bevel gear 404 drives second bevel gear 403 and rotates when rotating, second bevel gear 403 drives threaded rod 405 and rotates, threaded rod 405 drives thread bush 406 and reciprocates when rotating, thread bush 406 drives locating plate 407 and reciprocates when upwards moving, locating plate 407 drives block terminal body 5 and upwards moves when upwards moving, thereby can adjust the height of block terminal body 5, the operating personnel of different heights maintain and overhaul to block terminal body 5, simultaneously can avoid block terminal body 5 to contact with ground for a long time, lead to moisture to get into the inside circuit of block terminal body 5 and cause the problem of corroding the damage, through spacing ring 408, the effect to motor 401 has been played, simultaneously, prevent that motor 401 from taking place to drop or displacement when using.
Referring to fig. 1 and 2, screw holes 14 are formed in the front side and the rear side of the top of the two mounting plates 2, bolts 15 are connected in the inner cavities of the four screw holes 14 in a threaded manner, limiting plates 16 are fixedly connected to the top of the two mounting plates 2, and one side, opposite to the limiting plates 16, of each of the two mounting plates is fixedly connected with the base 1; the top of the two sides of the distribution box body 5 are provided with heat dissipation grooves, and the inner cavities of the two heat dissipation grooves are provided with filter screens; a supporting rod 17 is fixedly connected between one opposite side of each two second positioning frames 12, and the tops of the two supporting rods 17 are fixedly connected with the inner wall of the protective shell 13.
The scheme is adopted: through the cooperation of screw hole 14 and bolt 15, play the fixed action to mounting panel 2, make things convenient for operating personnel to install simultaneously, through limiting plate 16, play the fixed action to mounting panel 2, prevented simultaneously that mounting panel 2 from taking place to drop or displacement when using, through the cooperation of radiating groove and filter screen to use, play the heat dissipation and the dustproof effect to block terminal body 5, prevented simultaneously that block terminal body 5 from using the high temperature for a long time from causing the damage to the internals, through bracing piece 17, played the spacing effect to second locating rack 12, prevented simultaneously that second locating rack 12 from taking place the displacement when using.
When in use, a user fixedly installs the base 1 on the ground through the bolts 15, then fixedly installs the two sides of the distribution box body 5 and the positioning plate 407, when an operator needs to adjust the height of the distribution box body 5, the motor 401 is electrified to work, the output end of the motor 401 drives the first bevel gear 404 to rotate, the first bevel gear 404 drives the second bevel gear 403 to rotate when rotating, the second bevel gear 403 drives the threaded rod 405 to rotate, the threaded rod 405 drives the threaded sleeve 406 to move upwards or downwards when rotating, the threaded sleeve 406 drives the positioning plate 407 to move upwards when moving upwards, the positioning plate 407 drives the distribution box body 5 to move upwards when moving upwards, thus the height of the distribution box body 5 can be adjusted, operators with different heights can conveniently maintain and overhaul the distribution box body 5, meanwhile, the problem that moisture enters the inside of the distribution box body 5 to cause corrosion damage to the circuit can be avoided due to long-term contact between the distribution box body 5 and the ground, meanwhile, when severe weather such as hail is met, the protection shell 13 plays a role in protecting the distribution box body 5, the protection shell 13 is impacted when the hail falls down, the protection shell 13 is impacted to move downwards to press four second positioning frames 12, the four second positioning frames 12 drive one ends of four adjusting rods 11 to move when moving downwards, the other ends of the four adjusting rods 11 drive sliding sleeves 8 to move on the surface of the sliding rods 7 and squeeze springs 9, so that the distribution box body 5 is subjected to buffer protection, the damage to the distribution box body 5 caused by severe weather such as hail is avoided, and the service life of the distribution box body 5 is prolonged.
To sum up: this adjustable electrical installation support uses through base 1, mounting panel 2, support body 3, adjustment mechanism 4, block terminal body 5, stopper 6, slide bar 7, sliding sleeve 8, spring 9, first locating rack 10, adjust pole 11, second locating rack 12, protecting crust 13, screw hole 14, bolt 15, limiting plate 16 and bracing piece 17's cooperation, it is inconvenient to adjust electrical equipment's height after the installation to have solved current electrical equipment, make electrical equipment bottom contact with ground for a long time, lead to moisture to get into electrical equipment inside and cause the corruption damage and inconvenient operating personnel maintenance to examine and repair to electrical equipment's protective properties is relatively poor, cause electrical equipment damage's problem easily when encountering bad weather such as hail.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. An adjustable electrical device holder comprising a base (1), characterized in that: the utility model discloses a motor, including base (1), fixed connection, slide bar (7) are fixed connection, fixed connection mounting panel (2) are equal in the bottom of base (1) both sides, the equal fixedly connected with support body (3) in both sides at base (1) top, equal fixedly connected with adjustment mechanism (4) in one side opposite to two support bodies (3), two adjustment mechanism (4) include two motors (401) and two locating plates (407), fixed connection block (5) between one side opposite to two locating plates (407), the equal fixedly connected with stopper (6) in four corners at block (5) top, fixed connection slide bar (7) between one side opposite to every two stopper (6), the surface swing joint of slide bar (7) has sliding sleeve (8), the quantity of sliding sleeve (8) is four, equal fixedly connected with spring (9) in one side opposite to every two spring (9) all with stopper (6) fixed connection, the equal fixedly connected with first locating rack (10) in top of four first locating racks (10), the inner chamber of four first locating racks (10) all has regulation pole (11) through four swing joint adjusts pole (12) top fixedly connected with between the top of regulation pole (12).
2. An adjustable electrical device holder as defined in claim 1, wherein: two opposite sides of motor (401) all with support body (3) fixed connection, the output of two motor (401) all runs through to the inner chamber of support body (3) and fixedly connected with first bevel gear (402), the equal meshing in top of two first bevel gears (402) is connected with second bevel gear (403), the equal fixedly connected with gag lever post (404) in bottom of two second bevel gears (403), the equal fixedly connected with threaded rod (405) of the equal fixedly connected with in top of two second bevel gears (403) of the bottom of pivot and support body (3), the equal threaded connection in top of two threaded rod (405) and the inner wall swing joint of support body (3), the equal threaded connection in surface of two threaded rod (405) has thread bush (406), the outside of support body (3) and with locating plate (407) fixed connection are all run through to the opposite one side of two thread bush (406).
3. An adjustable electrical device holder as defined in claim 1, wherein: limiting rings (408) are sleeved on the surfaces of the two motors (401), and one sides, close to the bracket body (3), of the two limiting rings (408) are fixedly connected with the bracket body (3).
4. An adjustable electrical device holder as defined in claim 1, wherein: screw holes (14) are formed in the front side and the rear side of the tops of the two mounting plates (2), and the inner cavities of the four screw holes (14) are in threaded connection with bolts (15).
5. An adjustable electrical device holder as defined in claim 1, wherein: the tops of the two mounting plates (2) are fixedly connected with limiting plates (16), and one side of each of the two limiting plates (16) opposite to the base (1) is fixedly connected with the base.
6. An adjustable electrical device holder as defined in claim 1, wherein: the top of block terminal body (5) both sides has all been seted up the heat dissipation groove, and the inner chamber of two heat dissipation grooves all is provided with the filter screen.
7. An adjustable electrical device holder as defined in claim 1, wherein: the supporting rods (17) are fixedly connected between one opposite sides of every two second locating frames (12), and the tops of the two supporting rods (17) are fixedly connected with the inner wall of the protective shell (13).
CN202320337534.8U 2023-02-28 2023-02-28 Adjustable electrical device support Active CN219371803U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320337534.8U CN219371803U (en) 2023-02-28 2023-02-28 Adjustable electrical device support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320337534.8U CN219371803U (en) 2023-02-28 2023-02-28 Adjustable electrical device support

Publications (1)

Publication Number Publication Date
CN219371803U true CN219371803U (en) 2023-07-18

Family

ID=87118613

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320337534.8U Active CN219371803U (en) 2023-02-28 2023-02-28 Adjustable electrical device support

Country Status (1)

Country Link
CN (1) CN219371803U (en)

Similar Documents

Publication Publication Date Title
CN111970867B (en) Combined 5G communication module assembly and assembling method thereof
CN111193207A (en) Multidimensional damping type intelligent modular power distribution box
CN210042689U (en) Heat dissipation support for communication equipment
CN216215169U (en) High-efficient heat dissipation type explosion-proof lighting distribution box based on thing networking
CN219371803U (en) Adjustable electrical device support
CN214673765U (en) Low-voltage distribution box convenient to remove
CN217935519U (en) Adjustable photovoltaic panel mounting bracket
CN214625729U (en) Solid insulation looped netowrk measurement cabinet
CN220428119U (en) Generator supporting device
CN219959907U (en) Protective device
CN220930627U (en) Power equipment mounting frame convenient for overhauling power equipment
CN111555138A (en) Outdoor power distribution cabinet with severe impact circuit disconnection function
CN219956746U (en) High tension switchgear temperature on-line monitoring device
CN111352002B (en) Fault monitoring device for electrical equipment and use method thereof
CN215772067U (en) Electrical control cabinet for lifting equipment
CN219436499U (en) Handcart-type circuit breaker with protection machanism
CN213717405U (en) Electric power high-low voltage complete equipment of distribution board
CN219643359U (en) Mains supply switch cabinet
CN220851367U (en) Adjustable monitoring device for power supply equipment
CN215772020U (en) Low-voltage reactive power compensation cabinet convenient to assemble and disassemble
CN220629733U (en) Server mounting structure
CN219351036U (en) Explosion-proof box-type substation
CN219599510U (en) Rack is used in cable processing
CN220586372U (en) Substation environment monitoring device
CN220585824U (en) Strong and weak electricity block terminal

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant