CN219828347U - Movable sampling bracket - Google Patents

Movable sampling bracket Download PDF

Info

Publication number
CN219828347U
CN219828347U CN202320968285.2U CN202320968285U CN219828347U CN 219828347 U CN219828347 U CN 219828347U CN 202320968285 U CN202320968285 U CN 202320968285U CN 219828347 U CN219828347 U CN 219828347U
Authority
CN
China
Prior art keywords
sampling
auxiliary
angle adjusting
gear
fixedly connected
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
CN202320968285.2U
Other languages
Chinese (zh)
Inventor
毛勇
牟祖浩
谢东勤
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.)
Chongqing Zhonghan Environmental Protection Technology Research Institute Co ltd
Original Assignee
Chongqing Zhonghan Environmental Protection Technology Research Institute 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 Chongqing Zhonghan Environmental Protection Technology Research Institute Co ltd filed Critical Chongqing Zhonghan Environmental Protection Technology Research Institute Co ltd
Priority to CN202320968285.2U priority Critical patent/CN219828347U/en
Application granted granted Critical
Publication of CN219828347U publication Critical patent/CN219828347U/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

  • Sampling And Sample Adjustment (AREA)

Abstract

The utility model provides a movable sampling bracket, which belongs to the technical field of waste gas monitoring and aims to solve the problem that the prior art is inconvenient to operate when the orientation of a sampling end of a sampling gun is adjusted in the process of sampling waste gas in and out, and the convenience of use is affected when the waste gas is monitored and sampled; the angle adjusting mechanism is arranged on the inner sides of the supporting base and the angle adjusting frame; the limit auxiliary cylinder is connected to the outer side of the top end of the angle adjusting frame in a sliding manner; the sampling auxiliary mechanism is arranged at the inner sides of the angle adjusting mechanism and the limiting auxiliary cylinder; the clamping mechanism is arranged at the outer side of the inner end of the limit auxiliary cylinder; the quick adjustment of the sampling angle of the sampling end in the sampling gun is realized, the sampling end of the sampling gun is automatically close to the chimney detection port in the process of angle adjustment of the sampling end of the sampling gun, and the sampling progress and the sampling accuracy in the process of sampling waste gas are further improved.

Description

Movable sampling bracket
Technical Field
The utility model belongs to the technical field of waste gas monitoring, and particularly relates to a movable sampling bracket.
Background
When the waste gas is monitored, the sampling gun is inserted into the chimney detection port in cooperation with the sampling support, so that the end gun mouth of the chimney waste gas sampling gun stretches into the chimney to sample the waste gas.
If present application number CN202023008045.3 discloses a fixed pollution source exhaust monitoring sampling rifle support, including lift axle and mount pad, the lift axle runs through the mount pad perpendicularly, the bottom of mount pad articulates there are three at least foot pipes, the lift axle top is equipped with connection piece and lower connection piece, the cavity that forms between connection piece and the lower connection piece is used for installing the sampling rifle, be equipped with the clamp ring that the cooperation was adjusted the lift axle height in the mount pad, the outside threaded connection that clamp ring one end extends to the mount pad has the handle screw rod, the fixed ring is installed to the bottom that is located the mount pad on the lift axle, articulated on the fixed ring have the connecting rod, the connecting rod articulates for the one end of fixed ring has the sliding sleeve, sliding sleeve sliding connection is on the foot pipe, but the free height-adjusting of this utility model, it is convenient to fold, the stability of work is high.
Based on the above, the tripod is adopted to limit and support the waste gas sampling gun in the process of sampling the waste gas in and out, and the tripod and the sampling gun are connected in a fixed connection mode, so that the operation is inconvenient when the direction of the sampling end of the sampling gun is adjusted, the use convenience when the waste gas is monitored and sampled is influenced, and the sampling progress and the sampling accuracy when the waste gas is sampled are affected.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a movable sampling bracket, which is used for solving the problems that in the prior art, a tripod is mostly adopted to limit and support an exhaust gas sampling gun in the process of sampling exhaust gas in and out, and a fixed connection mode is mostly adopted when the tripod is connected with the sampling gun, so that the operation is inconvenient when the orientation of the sampling end of the sampling gun is adjusted, the use convenience when the exhaust gas is monitored and sampled, and the sampling progress and the sampling accuracy when the exhaust gas is sampled are affected.
The utility model discloses a movable sampling bracket, which is characterized by comprising the following specific technical means:
a movable sampling bracket comprises a supporting base, an angle adjusting frame, an angle adjusting mechanism, a limiting auxiliary cylinder, a sampling auxiliary mechanism and a clamping mechanism; the angle adjusting frame is rotatably connected to the top end face of the inner side of the supporting base; the angle adjustment mechanism is arranged on the inner sides of the supporting base and the angle adjustment frame, and comprises: the driving shaft is rotationally connected to the central position of the bottom end of the inner side of the supporting base, and the bottom end of the driving shaft is fixedly connected to the outer side of the rotating shaft of the driving motor; the limiting auxiliary cylinder is connected to the outer side of the top end of the angle adjusting frame in a sliding manner; the sampling auxiliary mechanism is arranged on the inner sides of the angle adjusting mechanism and the limiting auxiliary cylinder; the clamping mechanism is arranged on the outer side of the inner end of the limiting auxiliary cylinder.
Further, the support base includes: the connecting cylinder is fixedly connected to the central position of the end face of the bottom of the support base.
Further, the connecting auxiliary shaft is rotationally connected to the outer side of the driving shaft in a bilateral symmetry manner;
the angle adjusting mechanism also comprises: a driving gear, an adjusting gear and a transmission gear ring; the driving gear is coaxially and fixedly connected to the top end face of the driving shaft; the two adjusting gears are respectively and coaxially fixedly connected to the bottom end surfaces of the two connecting auxiliary shafts, and the driving gear and the adjusting gears are meshed with each other; the transmission gear ring is concentrically and fixedly connected to the bottom end of the inner side of the support base, and the inner side of the transmission gear ring is meshed with the outer side of the adjusting gear;
the angle adjusting frame comprises: the auxiliary connecting frames are arranged, the two auxiliary connecting frames are symmetrically and fixedly connected at the inner ends of the angle adjusting frames, and the inner sides of the two auxiliary connecting frames are rotationally connected with the two auxiliary connecting shafts.
Further, the auxiliary sampling mechanism comprises: a transmission gear, a first bevel gear and a second bevel gear; the transmission gear is rotationally connected to the upper side of the inner end of the angle adjusting frame; the two first bevel gears are symmetrically and coaxially fixedly connected to the outer ends of the transmission gears in a left-right mode; the two second bevel gears are coaxially and fixedly connected to the outer sides of the top end faces of the two connecting auxiliary shafts respectively, the first bevel gears and the second bevel gears are meshed with each other, and the first bevel gears and the second bevel gears form a bevel gear rotating mechanism together.
Further, the auxiliary sampling mechanism further comprises: the transmission rack is fixedly connected to the outer side of the end face of the bottom of the limiting auxiliary cylinder, the transmission rack is meshed with the transmission gear, and the transmission gear and the transmission rack jointly form a gear-rack transmission mechanism.
Further, the fixture includes: the three arc-shaped clamping plates are uniformly distributed and connected to the outer side of the inner end of the limiting auxiliary cylinder in a sliding manner; the elastic connecting pieces are uniformly distributed and fixedly connected to the inner sides of the arc-shaped clamping plates and the limiting auxiliary cylinder.
Compared with the prior art, the utility model has the following beneficial effects:
when the automatic sampling gun is used, when the driving gear rotates, the rotation of the adjusting gear is realized through the cooperation of the transmission gear ring, the rotation of the adjusting gear is realized around the outer side of the driving gear while the rotation of the adjusting gear is realized, when the adjusting gear rotates around the outer side of the driving gear, the rotation of the angle adjusting frame is realized through the cooperation of the connecting auxiliary frame, and the rapid adjustment of the sampling angle of the sampling end in the sampling gun is realized through the rotation of the angle adjusting frame;
when the transmission gear is used, the transmission gear rotates simultaneously through the cooperation of the first bevel gear and the second bevel gear when the auxiliary connecting shaft rotates; when the transmission gear rotates, the front and back sliding of the limit auxiliary cylinder is realized through the cooperation of the transmission rack, and the sampling end of the sampling gun automatically approaches to the chimney detection port through the front and back sliding of the limit auxiliary cylinder; through the cooperation of the arc-shaped clamping plate and the elastic connecting piece, the rapid clamping and limiting procedures of the sampling gun are realized, the connection stability of the sampling gun and the bracket is ensured, and the operation progress and smoothness of the sampling gun during the sampling of waste gas are further improved;
the utility model has simple operation and convenient use, realizes the rapid adjustment of the sampling angle of the sampling end in the sampling gun, further effectively improves the operation convenience when monitoring and sampling the waste gas, and the use flexibility and convenience of the bracket in the practical application process, realizes the front-back sliding of the limit auxiliary cylinder through the matching synchronization of the sampling auxiliary mechanism in the process of adjusting the sampling end of the sampling gun, ensures that the sampling end of the sampling gun automatically approaches to the chimney detection port, and further improves the sampling progress and the sampling accuracy when sampling the waste gas.
Drawings
Figure 1 is a schematic view of an isometric structure of the present utility model.
Fig. 2 is a schematic overall sectional structure of the present utility model.
Fig. 3 is a schematic view of the mounting structure of the transmission gear ring and the adjusting gear of the present utility model.
Fig. 4 is a schematic diagram of a connection structure of an angle adjusting frame and a limiting auxiliary cylinder.
Fig. 5 is a schematic view of a connection structure of an angle adjusting bracket and a supporting base of the present utility model.
Fig. 6 is a schematic diagram of a cross-sectional structure of the angle adjusting mechanism and the angle adjusting bracket of the present utility model.
In the figure, the correspondence between the component names and the drawing numbers is:
1. a support base; 101. a connecting cylinder; 2. an angle adjusting frame; 201. connecting an auxiliary frame; 3. a drive shaft; 301. a drive gear; 302. connecting an auxiliary shaft; 303. an adjusting gear; 304. a transmission gear ring; 4. a limit auxiliary cylinder; 5. a transmission gear; 501. a first bevel gear; 502. a second bevel gear; 503. a drive rack; 6. an arc-shaped clamping plate; 601. an elastic connection member.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples.
Examples:
as shown in fig. 1 to 6:
the utility model provides a movable sampling bracket which comprises a supporting base 1, an angle adjusting frame 2, an angle adjusting mechanism, a limiting auxiliary cylinder 4, a sampling auxiliary mechanism and a clamping mechanism, wherein the supporting base is provided with a plurality of supporting rods; the angle adjusting frame 2 is rotatably connected to the top end surface of the inner side of the support base 1; the angle adjustment mechanism is arranged on the inner sides of the support base 1 and the angle adjustment frame 2, and comprises: the driving shaft 3 and the connecting auxiliary shaft 302 are connected with the center position of the bottom end of the inner side of the supporting base 1 in a rotating way, and the bottom end of the driving shaft 3 is fixedly connected with the outer side of the rotating shaft of the driving motor; the limit auxiliary cylinder 4 is connected to the outer side of the top end of the angle adjusting frame 2 in a sliding manner; the sampling auxiliary mechanism is arranged on the inner sides of the angle adjusting mechanism and the limiting auxiliary cylinder 4; the clamping mechanism is arranged on the outer side of the inner end of the limit auxiliary cylinder 4.
Wherein, the support base 1 includes: the connecting cylinder 101, the connecting cylinder 101 is fixedly connected to the central position of the bottom end surface of the support base 1; in use, the support base 1 is quickly mounted to the tripod head by the engagement of the connecting cylinder 101.
Wherein, the connecting auxiliary shaft 302 is rotationally connected to the outer side of the driving shaft 3 in a bilateral symmetry manner;
the angle adjusting mechanism also comprises: a driving gear 301, an adjusting gear 303, and a transmission gear ring 304; the driving gear 301 is coaxially and fixedly connected to the top end surface of the driving shaft 3; the two adjusting gears 303 are respectively and coaxially fixedly connected to the bottom end surfaces of the two connecting auxiliary shafts 302, and the driving gear 301 and the adjusting gears 303 are meshed with each other; the transmission gear ring 304 is concentrically and fixedly connected to the bottom end of the inner side of the support base 1, and the inner side of the transmission gear ring 304 is meshed with the outer side of the adjusting gear 303;
the angle adjusting frame 2 comprises: the two connecting auxiliary frames 201 are symmetrically and fixedly connected at the inner ends of the angle adjusting frames 2 from left to right, and the inner sides of the two connecting auxiliary frames 201 are rotationally connected with the two connecting auxiliary shafts 302; in use, when the driving motor is started, the rotation of the driving gear 301 is realized, when the driving gear 301 rotates, through the cooperation of the transmission gear ring 304, the rotation of the adjusting gear 303 is realized while rotating around the outer side of the driving gear 301, when the adjusting gear 303 rotates around the outer side of the driving gear 301, the rotation of the angle adjusting frame 2 is realized through the cooperation of the connecting auxiliary frame 201, and the rapid adjustment of the sampling angle of the sampling end in the sampling gun is realized through the rotation of the angle adjusting frame 2, so that the operation convenience when the waste gas is monitored and sampled and the use flexibility and convenience of the bracket in the practical application process are effectively improved, and the sampling precision and the sampling progress when the waste gas is sampled are further improved.
Wherein, the auxiliary mechanism that takes a sample includes: a transmission gear 5, a first bevel gear 501, a second bevel gear 502; the transmission gear 5 is rotationally connected to the upper side of the inner end of the angle adjusting frame 2; two first bevel gears 501 are arranged, and the two first bevel gears 501 are symmetrically and coaxially and fixedly connected to the outer end of the transmission gear 5; the two second bevel gears 502 are respectively and coaxially fixedly connected to the outer sides of the top end surfaces of the two connecting auxiliary shafts 302, the first bevel gears 501 and the second bevel gears 502 are meshed with each other, and the first bevel gears 501 and the second bevel gears 502 jointly form a bevel gear rotating mechanism; in use, when the connection auxiliary shaft 302 rotates, simultaneous rotation of the transmission gear 5 is achieved by the cooperation of the first bevel gear 501 and the second bevel gear 502.
Wherein, the auxiliary mechanism that takes a sample still includes: the transmission rack 503, the transmission rack 503 is fixedly connected to the outer side of the bottom end surface of the limit auxiliary cylinder 4, the transmission rack 503 is meshed with the transmission gear 5, and the transmission gear 5 and the transmission rack 503 jointly form a gear-rack transmission mechanism; in use, when the transmission gear 5 rotates, the front and back sliding of the limit auxiliary cylinder 4 is realized through the cooperation of the transmission rack 503, and the sampling end of the sampling gun is automatically close to the chimney detection port through the front and back sliding of the limit auxiliary cylinder 4, so that the sampling progress and the sampling accuracy in the process of sampling the waste gas are further improved.
Wherein, fixture is including: the three arc-shaped clamping plates 6 are uniformly distributed and connected to the outer side of the inner end of the limit auxiliary cylinder 4 in a sliding manner; the elastic connecting pieces 601 are multiple, and the elastic connecting pieces 601 are uniformly distributed and fixedly connected to the inner sides of the arc-shaped clamping plate 6 and the limiting auxiliary cylinder 4; in use, through the cooperation of the arc-shaped clamping plate 6 and the elastic connecting piece 601, the rapid clamping and limiting procedures of the sampling gun are realized, the connection stability of the sampling gun and the bracket is ensured, and the operation progress and smoothness when waste gas is sampled are further improved.
Specific use and action of the embodiment:
when the utility model is used, the support base 1 and the top end of the tripod are quickly installed through the cooperation of the connecting cylinder 101; when the driving motor is started, the rotation of the driving gear 301 is realized, when the driving gear 301 rotates, the rotation of the adjusting gear 303 is realized while the rotation of the adjusting gear 303 is realized around the outer side of the driving gear 301 through the cooperation of the transmission gear ring 304, when the adjusting gear 303 rotates around the outer side of the driving gear 301, the rotation of the angle adjusting frame 2 is realized through the cooperation of the connecting auxiliary frame 201, and the rapid adjustment of the sampling angle of the sampling end in the sampling gun is realized through the rotation of the angle adjusting frame 2, so that the operation convenience when the waste gas is monitored and sampled and the use flexibility and convenience of the bracket in the practical application process are effectively improved, and the sampling precision and the sampling progress when the waste gas is sampled are further improved; when the auxiliary shaft 302 is connected to rotate, the transmission gear 5 rotates simultaneously through the cooperation of the first bevel gear 501 and the second bevel gear 502; when the transmission gear 5 rotates, the front-back sliding of the limit auxiliary cylinder 4 is realized through the cooperation of the transmission rack 503, and the sampling end of the sampling gun automatically approaches to the chimney detection port through the front-back sliding of the limit auxiliary cylinder 4, so that the sampling progress and the sampling accuracy in the process of sampling the waste gas are further improved; through the cooperation of arc grip block 6 and elastic connection spare 601, realized pressing from both sides tightly fast with spacing process to the sampling rifle, guaranteed the sampling rifle and this support's connection steadiness, further promoted operation progress and smoothness when sampling waste gas.

Claims (6)

1. A movable sampling support, characterized in that: comprises a supporting base (1), an angle adjusting frame (2), an angle adjusting mechanism, a limiting auxiliary cylinder (4), a sampling auxiliary mechanism and a clamping mechanism; the angle adjusting frame (2) is rotatably connected to the top end face of the inner side of the supporting base (1); the angle adjusting mechanism is arranged on the inner sides of the supporting base (1) and the angle adjusting frame (2), and comprises: the driving shaft (3) is rotatably connected to the center of the bottom end of the inner side of the supporting base (1), and the bottom end of the driving shaft (3) is fixedly connected to the outer side of the rotating shaft of the driving motor; the limiting auxiliary cylinder (4) is connected to the outer side of the top end of the angle adjusting frame (2) in a sliding manner; the sampling auxiliary mechanism is arranged at the inner sides of the angle adjusting mechanism and the limiting auxiliary cylinder (4); the clamping mechanism is arranged on the outer side of the inner end of the limit auxiliary cylinder (4).
2. A mobile sampling support according to claim 1, wherein: the support base (1) comprises: the connecting cylinder (101), the central point that connecting cylinder (101) fixed connection was in supporting base (1) bottom terminal surface puts.
3. A mobile sampling support according to claim 1, wherein: the connecting auxiliary shaft (302) is rotationally connected to the outer side of the driving shaft (3) in a bilateral symmetry manner;
the angle adjusting mechanism also comprises: a driving gear (301), an adjusting gear (303) and a transmission gear ring (304); the driving gear (301) is coaxially and fixedly connected to the top end face of the driving shaft (3); the two adjusting gears (303) are respectively and coaxially fixedly connected to the bottom end surfaces of the two connecting auxiliary shafts (302), and the driving gear (301) and the adjusting gears (303) are meshed with each other; the transmission gear ring (304) is concentrically and fixedly connected to the bottom end of the inner side of the support base (1), and the inner side of the transmission gear ring (304) is meshed with the outer side of the adjusting gear (303);
the angle adjusting frame (2) comprises: the two auxiliary connecting frames (201) are symmetrically and fixedly connected at the inner ends of the angle adjusting frames (2) left and right, and the inner sides of the two auxiliary connecting frames (201) are rotatably connected with the two auxiliary connecting shafts (302).
4. A mobile sampling support according to claim 1, wherein: the auxiliary sampling mechanism comprises: a transmission gear (5), a first bevel gear (501) and a second bevel gear (502); the transmission gear (5) is rotationally connected to the upper side of the inner end of the angle adjusting frame (2); two first bevel gears (501) are arranged, and the two first bevel gears (501) are symmetrically and coaxially fixedly connected to the outer end of the transmission gear (5); the two second bevel gears (502) are respectively and coaxially fixedly connected to the outer sides of the top end faces of the two connecting auxiliary shafts (302), the first bevel gears (501) and the second bevel gears (502) are meshed with each other, and the first bevel gears (501) and the second bevel gears (502) form a bevel gear rotating mechanism together.
5. A mobile sampling support according to claim 4, wherein: the auxiliary sampling mechanism also comprises: the transmission rack (503), the outside at spacing auxiliary cylinder (4) bottom terminal surface is connected fixedly to transmission rack (503), and transmission rack (503) and transmission gear (5) intermesh, and transmission gear (5) and transmission rack (503) constitute rack and pinion drive mechanism jointly.
6. A mobile sampling support according to claim 1, wherein: the clamping mechanism comprises: the three arc-shaped clamping plates (6) are uniformly distributed and slidably connected to the outer side of the inner end of the limiting auxiliary cylinder (4); the elastic connecting pieces (601) are multiple, and the elastic connecting pieces (601) are uniformly distributed and fixedly connected to the inner sides of the arc-shaped clamping plate (6) and the limiting auxiliary cylinder (4).
CN202320968285.2U 2023-04-25 2023-04-25 Movable sampling bracket Active CN219828347U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320968285.2U CN219828347U (en) 2023-04-25 2023-04-25 Movable sampling bracket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320968285.2U CN219828347U (en) 2023-04-25 2023-04-25 Movable sampling bracket

Publications (1)

Publication Number Publication Date
CN219828347U true CN219828347U (en) 2023-10-13

Family

ID=88272508

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320968285.2U Active CN219828347U (en) 2023-04-25 2023-04-25 Movable sampling bracket

Country Status (1)

Country Link
CN (1) CN219828347U (en)

Similar Documents

Publication Publication Date Title
CN219828347U (en) Movable sampling bracket
CN213319464U (en) Stainless steel pipe end grinding device
CN216802216U (en) Portable positioning fixture for steel pipe welding
CN213054522U (en) Clamping mechanism for natural gas pipeline connection
CN213702583U (en) But clamping device is used in processing of bent axle that multi-angle was adjusted
CN216442370U (en) Special fixture for engine connecting rod
CN220030019U (en) Assembly frame convenient to centre gripping
CN219725925U (en) Optical lens detects mounting fixture platform
CN213858899U (en) Clamping and fixing device for bolt machining for producing jack accessories
CN220944894U (en) Oil pressure vice with increased clamping distance
CN213028460U (en) Play broadcaster and use words barrel holder
CN217586248U (en) Precision measurement equipment for optical lens
CN219943302U (en) Powder spraying equipment for processing aluminum alloy automobile hub
CN220330360U (en) Nonstandard flange welding set convenient to adjust
CN220943408U (en) Metal tube processing circular cutting machine capable of avoiding deformation
CN213909100U (en) Workstation for building management with regulatory function
CN221087853U (en) Welding positioning device for metal round tube
CN221047698U (en) Fixing frame for welding tubular column
CN217370522U (en) Drilling equipment is used in aluminium alloy processing
CN214684635U (en) Welding device for power electronic element production
CN213731378U (en) Positioning tool for pulley assembling
CN220231457U (en) Mechanical part defect detection device
CN220912627U (en) Hand brake control handle assembly gauge
CN215588519U (en) High-precision tool clamp for machining
CN220961440U (en) Mechanical gear surface nondestructive flaw detection device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant