CN220791213U - Logging instrument connecting device - Google Patents

Logging instrument connecting device Download PDF

Info

Publication number
CN220791213U
CN220791213U CN202420459869.1U CN202420459869U CN220791213U CN 220791213 U CN220791213 U CN 220791213U CN 202420459869 U CN202420459869 U CN 202420459869U CN 220791213 U CN220791213 U CN 220791213U
Authority
CN
China
Prior art keywords
frame
plug
wall
shell
cable
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
CN202420459869.1U
Other languages
Chinese (zh)
Inventor
唐克军
申少军
李欢
王媛
胡向阳
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.)
Shaanxi Haimo Oilfield Service Co ltd
Original Assignee
Shaanxi Haimo Oilfield Service 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 Shaanxi Haimo Oilfield Service Co ltd filed Critical Shaanxi Haimo Oilfield Service Co ltd
Priority to CN202420459869.1U priority Critical patent/CN220791213U/en
Application granted granted Critical
Publication of CN220791213U publication Critical patent/CN220791213U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Cable Accessories (AREA)

Abstract

The utility model discloses a logging instrument connecting device, and relates to the technical field of well sinking; the cable is inserted into the shell, quick plugging mechanisms matched with the cable are arranged in the shell, the quick plugging mechanisms are symmetrically distributed, reinforcing mechanisms matched with the quick plugging mechanisms are arranged outside the shell, and a connecting mechanism is arranged at the bottom end of the inner wall of the shell; according to the utility model, the cable can be quickly connected with the logging instrument through the quick plugging mechanism by arranging the quick plugging mechanism, the quick plugging mechanism is reinforced by arranging the reinforcing mechanism to ensure the stability of the quick plugging mechanism after plugging, and the quick plugging of the cable to the logging instrument and the reinforcing of the quick plugging device to ensure the stability of the quick plugging device in the process of completing the plugging operation are realized through the operation.

Description

Logging instrument connecting device
Technical Field
The utility model relates to the technical field of well sinking, in particular to a logging instrument connecting device.
Background
The logging instrument can continuously scan the well wall, can also transversely scan any level, and provides technical data such as a vertical section, a horizontal section, an effective section, a deflection distance and the like of the well shaft;
chinese patent publication (bulletin) No.: the CN 219638813 utility model discloses a logging instrument connecting device, which comprises a shell, a cable, a connector, a butt joint part and a releasing mechanism, wherein a cavity is arranged in the shell; one end of the cable penetrates through and extends into the cavity of the shell along the vertical direction of the cable; the connector is arranged at one end part of the cable positioned in the cavity of the shell; the butt joint part is arranged in the shell cavity and is opposite to the connector, and the connector is spliced in the butt joint part; the unlocking mechanism is arranged on the butt joint part, the unlocking mechanism is provided with at least two locking parts which are oppositely arranged, the at least two locking parts move in opposite directions along the radial direction of the butt joint part and are propped against the surface of the connector, the current position of the connector is locked, when a logging instrument needs to be disassembled or is in contact with a card, the connector can be unlocked by the same principle, the cable and the logging instrument can be conveniently disassembled and assembled, the cable is disconnected when the cable is in contact with the card, the cable breakage caused by overlarge pulling force is avoided, and the device can be used for multiple times, so that the use effect is further improved.
Although the above-mentioned case has solved the fixed effect of pegging graft to the cable, above-mentioned pegging graft needs drive arrangement to fix its drive and drives locking part to can not directly peg graft fast, has had certain restriction to the service condition in field environment operation, and the inventor proposes a logging instrument connecting device to solve above-mentioned problem.
Disclosure of Invention
The cable is fast spliced with the logging instrument, and the cable is reinforced after fast splicing to ensure stability; the utility model aims to provide a logging instrument connecting device.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a logging instrument connecting device, includes the shell, the shell top is equipped with fixed establishment, run through in the fixed establishment and be equipped with the cable, the cable inserts and establishes in the shell, the inside quick grafting mechanism that is equipped with and uses with the cable cooperation of shell, and quick grafting mechanism is equipped with and is two of symmetric distribution, the shell is equipped with the strengthening mechanism that uses with quick grafting mechanism cooperation outward, shell inner wall bottom is equipped with coupling mechanism;
the quick plug-in mechanism comprises a plug-in bolt fixedly mounted at the bottom end of a cable, a slip ring is sleeved on the outer wall of the plug-in bolt in a sliding manner, a first inner groove which is symmetrically distributed is formed in the shell, a plug bolt is inserted in the first inner groove in a sliding manner, the plug bolt penetrates through the shell, and a plug block matched with the plug-in bolt and the slip ring for use is fixedly mounted at the end part of the shell.
Preferably, the outer wall cover of plug is equipped with a spring, the both ends of a spring are respectively with grafting piece and shell fixed connection.
Preferably, the reinforcing mechanism comprises an annular frame, the annular frame is fixedly arranged on one side, close to the plug, of the outer wall of the shell, second inner grooves which are symmetrically distributed are formed in the annular frame, limiting plugs are inserted into the second inner grooves in a penetrating mode, a fixing plate is fixedly arranged on one side, close to the plug, of the outer wall of the shell, and a rotating plate matched with the limiting plugs in use is rotatably arranged on the fixing plate.
Preferably, the fixing mechanism comprises a threaded fixing frame, the threaded fixing frame is fixedly arranged at the top end of the shell, the shell is communicated with the threaded fixing frame, the threaded connecting frame is arranged on the outer wall of the threaded fixing frame in a threaded mode, and the connecting ring matched with the threaded fixing frame in use is fixedly arranged on the inner wall of the threaded connecting frame.
Preferably, the connecting mechanism comprises a fixed ring frame, the fixed ring frame is fixedly arranged at the bottom end of the inner wall of the shell, the lifting ring frame is sleeved on the outer wall of the fixed ring frame in a sliding manner, a third spring is arranged in the fixed ring frame, and two ends of the third spring are fixedly connected with the shell and the lifting ring frame respectively.
Preferably, the shell is close to one side of the first inner groove and is provided with symmetrically distributed sliding grooves, two sliding grooves are communicated with the first inner groove, connecting blocks are fixedly arranged on two sides of the outer wall of the plug-in block, balls are rotatably arranged on the connecting blocks, and the balls are in sliding connection with the sliding grooves.
Preferably, the outer wall of the limiting bolt is sleeved with a second spring, two ends of the second spring are fixedly connected with the limiting bolt and the annular frame respectively, and the top end of the limiting bolt is rotatably provided with a rotating block.
Preferably, the fixed plate is rotatably provided with a rotating shaft, the outer wall of the rotating shaft is rotatably provided with a rotating plate, and the middle part of the top end of the rotating plate is provided with a limiting groove matched with the limiting bolt.
Preferably, the top end of the inner wall of the threaded connection frame is fixedly provided with a first rubber sealing ring matched with the threaded connection frame, the inner wall of the connection ring is fixedly provided with a second rubber sealing ring matched with the cable, and the bottom end of the threaded connection frame and the top end of the threaded connection frame are fixedly provided with third rubber sealing rings.
Preferably, a spherical groove matched with the plug pin is formed in the top end of the lifting ring frame.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the quick plugging mechanism is arranged, so that the cable can be quickly connected with the logging instrument through the quick plugging mechanism, the reinforcing mechanism is arranged to reinforce the quick plugging mechanism to ensure the stability of the quick plugging mechanism after plugging, and the cable is quickly plugged into the logging instrument and the quick plugging device is reinforced to ensure the stability of the quick plugging device in the process of completing the plugging operation;
2. according to the utility model, the fixing mechanism is arranged, so that the cable is installed on the fixing thread frame in a rotating thread way through the connecting thread frame, the connecting ring is tightly contacted with the cable through the extrusion of the fixing thread frame on the connecting ring, the fixing effect is realized, the secondary fixing of the cable and the logging instrument is realized through the operation, and the stability of connection is ensured through the secondary fixing.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the overall split structure of the present utility model;
FIG. 3 is an enlarged schematic view of the structure shown in FIG. 2A;
FIG. 4 is an enlarged schematic view of the structure shown at B in FIG. 2;
FIG. 5 is an enlarged schematic view of the structure of FIG. 3 at C;
FIG. 6 is a schematic structural view of a fixing mechanism according to the present utility model;
FIG. 7 is an enlarged schematic view of the structure shown at D in FIG. 6;
FIG. 8 is a schematic view showing the split structure of the connecting mechanism according to the present utility model;
fig. 9 is an enlarged schematic view of the structure at E in fig. 8.
In the figure: 1. a housing; 2. a cable; 3. a fixing mechanism; 301. a threaded fixing frame; 302. a threaded connection frame; 303. a connecting ring; 304. a first rubber seal ring; 305. a second rubber seal ring; 306. a third rubber seal ring; 4. a quick plug-in mechanism; 401. a plug bolt; 402. a slip ring; 403. a first inner groove; 404. a plug; 405. a plug block; 406. a first spring; 407. a chute; 408. a connecting block; 409. a ball; 5. a reinforcement mechanism; 501. an annular frame; 502. a second internal groove; 503. a limit bolt; 504. a fixing plate; 505. a rotating plate; 506. a rotating shaft; 507. a limit groove; 508. a rotating block; 509. a second spring; 6. a connecting mechanism; 601. fixing the ring frame; 602. lifting the ring frame; 603. a spherical groove; 604. and a third spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-9, the utility model provides a logging instrument connecting device, which comprises a shell 1, wherein a fixing mechanism 3 is arranged at the top end of the shell 1, a cable 2 is arranged in the fixing mechanism 3 in a penetrating manner, the cable 2 is inserted into the shell 1, quick plugging mechanisms 4 matched with the cable 2 are arranged inside the shell 1, two quick plugging mechanisms 4 are symmetrically distributed, a reinforcing mechanism 5 matched with the quick plugging mechanisms 4 is arranged outside the shell 1, and a connecting mechanism 6 is arranged at the bottom end of the inner wall of the shell 1;
the quick plug mechanism 4 comprises a plug 401, wherein the plug 401 is fixedly arranged at the bottom end of a cable 2, a slip ring 402 is sleeved on the outer wall of the plug 401 in a sliding manner, a first inner groove 403 which is symmetrically distributed is formed in the shell 1, a plug 404 is inserted in the first inner groove 403 in a sliding manner, the plug 404 penetrates through the shell 1, and a plug block 405 which is matched with the plug 401 and the slip ring 402 is fixedly arranged at the end part of the shell 1.
The outer wall of the plug 404 is sleeved with a first spring 406, and two ends of the first spring 406 are fixedly connected with the plug block 405 and the shell 1 respectively.
By adopting the above technical scheme, the plug block 405 limits the plug 401.
The reinforcing mechanism 5 comprises an annular frame 501, the annular frame 501 is fixedly arranged on one side, close to the plug 404, of the outer wall of the shell 1, second inner grooves 502 which are symmetrically distributed are formed in the annular frame 501, limiting bolts 503 are inserted into the second inner grooves 502 in a penetrating mode, a fixing plate 504 is fixedly arranged on one side, close to the plug 404, of the outer wall of the shell 1, and a rotating plate 505 matched with the limiting bolts 503 is rotatably arranged on the fixing plate 504.
By adopting the above technical scheme, the rotating plate 505 and the fixed plate 504 are rotationally connected.
The fixing mechanism 3 comprises a threaded fixing frame 301, the threaded fixing frame 301 is fixedly arranged at the top end of the shell 1, the shell 1 is communicated with the threaded fixing frame 301, a threaded connecting frame 302 is arranged on the outer wall of the threaded fixing frame 301 in a threaded mode, and a connecting ring 303 matched with the threaded fixing frame 301 in use is fixedly arranged on the inner wall of the threaded connecting frame 302.
By adopting the above technical scheme, the threaded fixing frame 301 and the threaded connecting frame 302 are connected by threads.
The coupling mechanism 6 includes solid fixed ring frame 601, gu fixed ring frame 601 fixed mounting is in shell 1 inner wall bottom, gu fixed ring frame 601 outer wall slip cap is equipped with lift ring frame 602, is equipped with No. three springs 604 in the solid fixed ring frame 601, no. three springs 604's both ends respectively with shell 1 and lift ring frame 602 fixed connection.
By adopting the technical scheme, the fixed ring frame 601 and the lifting ring frame 602 are connected in a sliding manner.
The shell 1 is close to one side of the first inner groove 403 and is provided with symmetrically distributed slide grooves 407, two slide grooves 407 are communicated with the first inner groove 403, connecting blocks 408 are fixedly arranged on two sides of the outer wall of each plug-in block 405, balls 409 are rotatably arranged on the connecting blocks 408, and the balls 409 are in sliding connection with the slide grooves 407.
By adopting the above technical scheme, the plug 405 slides through the ball 409.
The outer wall of the limit bolt 503 is sleeved with a second spring 509, two ends of the second spring 509 are fixedly connected with the limit bolt 503 and the annular frame 501 respectively, and a rotating block 508 is rotatably arranged at the top end of the limit bolt 503.
By adopting the above technical scheme, the second spring 509 is made to limit the limit bolt 503.
A rotating shaft 506 is rotatably arranged on the fixed plate 504, a rotating plate 505 is rotatably arranged on the outer wall of the rotating shaft 506, and a limiting groove 507 matched with the limiting bolt 503 is formed in the middle of the top end of the rotating plate 505.
By adopting the above technical scheme, the limit stud 503 is connected with the rotating plate 505 through the limit groove 507.
The top end of the inner wall of the threaded connection frame 302 is fixedly provided with a first rubber sealing ring 304 matched with the threaded connection frame 301, the inner wall of the connection ring 303 is fixedly provided with a second rubber sealing ring 305 matched with the cable 2, and the bottom end of the threaded connection frame 301 and the top end of the threaded connection frame 302 are fixedly provided with a third rubber sealing ring 306.
By adopting the above technical scheme, the screw fixing frame 301 and the screw connecting frame 302 are sealed by the first rubber sealing ring 304, the second rubber sealing ring 305 and the third rubber sealing ring 306.
A spherical groove 603 matched with the plug 401 is formed at the top end of the lifting ring frame 602.
By adopting the technical scheme, the plug 401 is contacted with the lifting ring frame 602 through the spherical groove 603.
Working principle: firstly, one end of a cable 2 fixedly provided with a plug 401 is inserted into a shell 1 through a threaded connection frame 302 through a threaded fixing frame 301, the cable 2 is continuously inserted downwards until the bottom end of the plug 401 is contacted with a plug block 405, the bottom of the plug 401 is spherical, when the cable 2 drives the plug 401 to continuously move downwards, two plug blocks 405 reversely move along the plug 401 and squeeze a first spring 406, after the end part of the plug 401 exceeds the plug blocks 405, the plug blocks 405 are pushed to reset under the reaction force of the first spring 406 so that the plug blocks 405 limit the plug blocks 401 to play a role of fixing, at the moment, the end part of the plug 401 is positioned in a spherical groove 603 in a lifting ring frame 602, if the cable 2 is required to be separated from a connecting device, the cable 2 is continuously pushed downwards, the plug blocks 401 are continuously pushed downwards to move downwards and squeeze a third spring 604 through the lifting ring frame 602, in the process, the plug blocks 405 are contacted with the slip rings 402 to move to the back of the slip rings 402 under the guidance of the slip rings 402, and then the plug blocks 405 are rapidly pulled out of the cable 2 under the action of the slip rings 402, and the plug blocks 401 are separated from the plug blocks 401;
after the cable 2 is spliced, the plug 401 is subjected to limit fixation, the rotating block 508 is turned over, the rotating block 508 turns over to drive the limit bolt 503 to completely enter the second inner groove 502, the limit bolt 503 extrudes the second spring 509 in the ascending process, the rotating plate 505 is turned over to enable the limit groove 507 to correspond to the limit bolt 503, the rotating block 508 is turned over to reset, and the limit bolt 503 is inserted into the limit groove 507 under the action of the rotating block 508 and the second spring 509;
the cable 2 is secondarily fixed, the threaded connection frame 302 is in threaded connection with the threaded connection frame 301 after the cable 2 is quickly inserted, and the clamping and fixing effects are achieved by the fact that the threaded connection frame 301 extrudes the connection ring 303 in the process of connecting the threaded connection frame 301 with the threaded connection frame 302.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. A logging tool connection device comprising a housing (1), characterized in that: the cable fixing device is characterized in that a fixing mechanism (3) is arranged at the top end of the shell (1), a cable (2) is arranged in the fixing mechanism (3) in a penetrating manner, the cable (2) is inserted into the shell (1), a quick plug-in mechanism (4) matched with the cable (2) for use is arranged inside the shell (1), two quick plug-in mechanisms (4) are symmetrically distributed, a reinforcing mechanism (5) matched with the quick plug-in mechanism (4) for use is arranged outside the shell (1), and a connecting mechanism (6) is arranged at the bottom end of the inner wall of the shell (1);
quick grafting mechanism (4) are including pegging graft bolt (401), pegging graft bolt (401) fixed mounting is in cable (2) bottom, pegging graft bolt (401) outer wall slip cap is equipped with sliding ring (402), offered in shell (1) and be symmetrical distribution's inside groove (403) No. one, slip in inside groove (403) is pegged graft and is equipped with plug (404), and plug (404) run through shell (1), the tip fixed mounting of shell (1) have plug (405) with pegging graft bolt (401) and sliding ring (402) cooperation use.
2. The logging tool connecting device according to claim 1, wherein a first spring (406) is sleeved on the outer wall of the plug (404), and two ends of the first spring (406) are fixedly connected with the plug block (405) and the housing (1) respectively.
3. The logging tool connecting device according to claim 1, wherein the reinforcing mechanism (5) comprises an annular frame (501), the annular frame (501) is fixedly installed on one side, close to the plug (404), of the outer wall of the casing (1), two symmetrically distributed number two inner grooves (502) are formed in the annular frame (501), limiting plugs (503) are inserted into the two number two inner grooves (502) in a penetrating mode, a fixing plate (504) is fixedly installed on one side, close to the plug (404), of the outer wall of the casing (1), and a rotating plate (505) matched with the limiting plugs (503) is installed on the fixing plate (504) in a rotating mode.
4. A logging tool connection device according to claim 1, wherein the fixing mechanism (3) comprises a threaded fixing frame (301), the threaded fixing frame (301) is fixedly installed at the top end of the casing (1), the casing (1) is communicated with the threaded fixing frame (301), the threaded connecting frame (302) is installed on the outer wall of the threaded fixing frame (301) in a threaded mode, and the connecting ring (303) matched with the threaded fixing frame (301) is installed on the inner wall of the threaded connecting frame (302) in a fixed mode.
5. The logging tool connecting device according to claim 1, wherein the connecting mechanism (6) comprises a fixed ring frame (601), the fixed ring frame (601) is fixedly installed at the bottom end of the inner wall of the casing (1), a lifting ring frame (602) is sleeved on the outer wall of the fixed ring frame (601) in a sliding manner, a third spring (604) is arranged in the fixed ring frame (601), and two ends of the third spring (604) are fixedly connected with the casing (1) and the lifting ring frame (602) respectively.
6. The logging tool connecting device according to claim 1, wherein the side, close to the first inner groove (403), of the housing (1) is provided with symmetrically distributed sliding grooves (407), the two sliding grooves (407) are communicated with the first inner groove (403), connecting blocks (408) are fixedly arranged on two sides of the outer wall of the plug-in block (405), balls (409) are rotatably arranged on the connecting blocks (408), and the balls (409) are in sliding connection with the sliding grooves (407).
7. A logging tool connection device according to claim 3, wherein the outer wall of the limit bolt (503) is sleeved with a second spring (509), two ends of the second spring (509) are fixedly connected with the limit bolt (503) and the annular frame (501) respectively, and a rotating block (508) is rotatably installed at the top end of the limit bolt (503).
8. A logging tool connection device according to claim 3, wherein a rotating shaft (506) is rotatably mounted on the fixed plate (504), a rotating plate (505) is rotatably mounted on the outer wall of the rotating shaft (506), and a limit groove (507) used in cooperation with the limit bolt (503) is formed in the middle of the top end of the rotating plate (505).
9. The logging instrument connecting device according to claim 4, wherein a first rubber sealing ring (304) matched with the threaded fixing frame (301) is fixedly arranged at the top end of the inner wall of the threaded fixing frame (302), a second rubber sealing ring (305) matched with the cable (2) is fixedly arranged on the inner wall of the connecting ring (303), and a third rubber sealing ring (306) is fixedly arranged at the bottom end of the threaded fixing frame (301) and the top end of the threaded fixing frame (302).
10. The logging tool connection device according to claim 5, wherein a spherical groove (603) matched with the plug pin (401) is formed in the top end of the lifting ring frame (602).
CN202420459869.1U 2024-03-11 2024-03-11 Logging instrument connecting device Active CN220791213U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202420459869.1U CN220791213U (en) 2024-03-11 2024-03-11 Logging instrument connecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202420459869.1U CN220791213U (en) 2024-03-11 2024-03-11 Logging instrument connecting device

Publications (1)

Publication Number Publication Date
CN220791213U true CN220791213U (en) 2024-04-16

Family

ID=90666648

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202420459869.1U Active CN220791213U (en) 2024-03-11 2024-03-11 Logging instrument connecting device

Country Status (1)

Country Link
CN (1) CN220791213U (en)

Similar Documents

Publication Publication Date Title
CN103618171B (en) Public connector, female connectors and connector assembly
CN110646896B (en) Adapter and optical fiber connecting assembly
US7976072B2 (en) Receptacle with rotating release lock
CN101546883A (en) Quick locking and separation mechanism of radio frequency coaxial connector
US20080171456A1 (en) Swivel single pole electrical connectors
CN220791213U (en) Logging instrument connecting device
CN112397938B (en) Safe anticreep plug assembly of new energy automobile PCU controller
CN113178740A (en) Rotatory plug underwater bearing connector of quick self-adaptation formula
CN117071730A (en) Bolt net frame structure with high strength of connecting structure
CN109004427B (en) Safety socket
CN116252895A (en) Front rod locking structure
CN2626079Y (en) Intrinsic safety type connector assembly for mine
CN218348210U (en) Safety rope and LED display screen
CN109546448B (en) Draw separating mechanism to one side perpendicularly
CN106981761B (en) Connector assembly and its connector
CN218405903U (en) Building lightweight steel wall connection structure
CN216043111U (en) Novel anti-theft lock cylinder structure not prone to fracture
CN110005364A (en) A kind of logging cable rotary sealing appts and its operating method
CN114578490B (en) HDMI optical fiber plug with lock catch
CN219931587U (en) Connecting structure of movable scaffold vertical pipe
CN219067302U (en) Self-short-circuit connector
CN204947217U (en) The rotary unlocking prevention device of a kind of connector
RU2157786C2 (en) Shaped-head loads gripping device
CN210713679U (en) Elevator shaft of newly-increased elevator in existing house
CN219339702U (en) Opening and closing device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant