CN221070767U - Auxiliary mechanical arm for lifting liquid nitrogen tank or liquid nitrogen tank lifting barrel - Google Patents

Auxiliary mechanical arm for lifting liquid nitrogen tank or liquid nitrogen tank lifting barrel Download PDF

Info

Publication number
CN221070767U
CN221070767U CN202322321765.2U CN202322321765U CN221070767U CN 221070767 U CN221070767 U CN 221070767U CN 202322321765 U CN202322321765 U CN 202322321765U CN 221070767 U CN221070767 U CN 221070767U
Authority
CN
China
Prior art keywords
lifting
liquid nitrogen
nitrogen tank
winding roller
bin
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
CN202322321765.2U
Other languages
Chinese (zh)
Inventor
樊燕锋
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.)
Suzhou Kangtian Shenghe Biotechnology Co ltd
Original Assignee
Suzhou Kangtian Shenghe Biotechnology 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 Suzhou Kangtian Shenghe Biotechnology Co ltd filed Critical Suzhou Kangtian Shenghe Biotechnology Co ltd
Priority to CN202322321765.2U priority Critical patent/CN221070767U/en
Application granted granted Critical
Publication of CN221070767U publication Critical patent/CN221070767U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The utility model discloses an auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank lifting barrel, which comprises a bottom plate, a belt transmission lifting structure, a connecting structure and a grabbing structure, wherein a fixed seat is arranged on the left side of the upper end face of the bottom plate, a rotating motor is arranged at the upper end of the fixed seat, the upper end of the rotating motor is movably connected with the belt transmission lifting structure, the upper end of the belt transmission lifting structure is fixedly connected with the connecting structure, and the rightmost side of the connecting structure is provided with the grabbing structure. The utility model can grasp the liquid nitrogen tank or the liquid nitrogen tank lifting barrel through the grabbing structure, and the three groups of pulley lifting structures are adopted because of the winding rollers, so that operators can be helped to lift the liquid nitrogen tank or the liquid nitrogen tank lifting barrel easily, and the liquid nitrogen tank or the liquid nitrogen tank lifting barrel can be lifted easily and then the follow-up operation is carried out.

Description

Auxiliary mechanical arm for lifting liquid nitrogen tank or liquid nitrogen tank lifting barrel
Technical Field
The utility model relates to the technical field of clamping of liquid nitrogen tanks, in particular to an auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank lifting barrel.
Background
The liquid nitrogen tank is generally divided into a liquid nitrogen storage tank and a liquid nitrogen transportation tank. The storage tank is mainly used for standing and storing indoor liquid nitrogen, and is not suitable for long-distance transportation in a working state; the liquid nitrogen transportation tank is specially designed for vibration prevention in order to meet transportation conditions. Besides the static storage, the device can be transported and used in a liquid nitrogen filling state, but severe collision and vibration should be avoided.
The liquid nitrogen tank has a certain weight, is heavier after being filled with liquid nitrogen or storing a certain amount of substances in the liquid nitrogen tank, and when the liquid nitrogen tank is used, the liquid nitrogen tank (particularly the liquid nitrogen tank filled with the stored substances) is required to be moved sometimes, the liquid nitrogen tank is usually moved by a trailer when being transferred in a short distance, but the liquid nitrogen tank is transferred to the trailer from the ground, and a plurality of people are required to be protected, and meanwhile, the liquid nitrogen tank is lifted up to be moved to the trailer for transfer. The liquid nitrogen tank is heavy, the stored liquid nitrogen is dangerous, and operators can be frostbitten due to slight carelessness in the lifting process. There is therefore a need for an auxiliary mechanical arm for lifting and lowering a liquid nitrogen tank to solve the above-mentioned problems.
Furthermore, after the liquid nitrogen tank is fully filled with the liquid nitrogen tank, the liquid nitrogen tank is mutually extruded, and meanwhile, due to the action of liquid nitrogen, the liquid nitrogen tank is heavy in weight, and when frozen cells need to be stored and taken out of the liquid nitrogen tank, the liquid nitrogen tank can be lifted out only by great effort, so that an auxiliary mechanical arm is also needed for lifting the liquid nitrogen tank from the liquid nitrogen tank.
Therefore, a new auxiliary mechanical arm for lifting the liquid nitrogen tank or the liquid nitrogen tank lifting barrel needs to be designed to solve the problems.
Disclosure of Invention
The utility model aims to provide an auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank lifting barrel so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an auxiliary mechanical arm for liquid nitrogen container or liquid nitrogen container pail go up and down, includes bottom plate, belt drive elevation structure, connection structure and snatchs the structure, its characterized in that, bottom plate up end left side is provided with the fixing base, and the fixing base upper end is provided with the rotating electrical machines, and rotating electrical machines upper end swing joint has belt drive elevation structure, belt drive elevation structure upper end fixedly connected with connection structure, and connection structure right side is provided with snatchs the structure, should snatch the structure and be used for snatching liquid nitrogen container or liquid nitrogen container pail.
As a further scheme of the utility model: the utility model discloses a motor, including motor, first lift storehouse, second lift storehouse, third lift storehouse, fourth winding roller, sixth winding roller swing joint, belt all with first winding roller, second winding roller, third lift storehouse lower extreme left side position is provided with the pivot, second lift storehouse upper end is provided with the pivot, second lift storehouse right side is provided with first winding roller, third lift storehouse and bottom plate swing joint, third lift storehouse lower extreme left side position is provided with the third winding roller, third lift storehouse lower extreme left side position is provided with the fourth winding roller, the belt all with first winding roller, second winding roller, third winding roller, fifth winding roller, sixth winding roller swing joint.
As still further aspects of the utility model: the utility model discloses a wire winding roller, including first elevating bin, second elevating bin, third elevating bin, connecting rod, wire winding roller, first elevating bin and second elevating bin inside wall both ends all are provided with the fixture block about both ends about first elevating bin and second elevating bin inside wall, fixture block and the equal axisymmetric setting of fixture block, both ends all are provided with the spill piece about second elevating bin and third elevating bin inside wall, spill piece and the equal axisymmetric setting of spill piece, and the spill piece can correspond the cooperation with the fixture block, the equal fixedly connected with connecting rod of second elevating bin and third elevating bin inside wall, equal fixedly connected with wire winding roller in connecting rod upper end.
As still further aspects of the utility model: the right side of the third lifting bin is provided with a workbench, the right center position of the lower end of the workbench is provided with an electric telescopic rod, and the lower end of the electric telescopic rod is fixedly connected with an auxiliary mechanical clamping jaw.
Compared with the prior art, the utility model has the beneficial effects that: when being used for lifting the liquid nitrogen tank, when shifting the liquid nitrogen tank: the staff moves this arm to corresponding liquid nitrogen container next door at first, then go on the centre gripping fixed to liquid nitrogen container handle through the supplementary mechanical clamping jaw lift of electric telescopic handle control, then start rotating motor, rotating motor drives the belt of first winding roller and upper end, realize the second lift bin through the cooperation of second winding roller, the third winding roller, the fourth winding roller, the fifth winding roller, sixth winding roller and belt, the ascending upper end lift of third lift bin can lift the liquid nitrogen container, then move the trailer under the liquid nitrogen container, then put down the liquid nitrogen container, the light lift to the liquid nitrogen container has been realized, when the liquid nitrogen container shifts, can be light place on the trailer, for operating personnel, labour saving and time saving is still safer. The utility model has simple and reasonable structural design and convenient and quick use and operation.
When being used for taking out the liquid nitrogen container pail from the liquid nitrogen container, the staff at first removes this arm next door to corresponding liquid nitrogen container, then opens the liquid nitrogen container lid, fixes the handle of the liquid nitrogen container pail that needs to take out on auxiliary machinery clamping jaw, starts the rotating electrical machines afterwards, and the rotating electrical machines drives first winding roller and the belt of upper end, realizes through the cooperation of second winding roller, third winding roller, fourth winding roller, fifth winding roller, sixth winding roller and belt that second lift bin, third lift bin go up to the upper end and go up to suitable height with the liquid nitrogen container pail, then carries out follow-up operation to the liquid nitrogen container pail, this arm structural design is simple, convenient operation. And when the first lifting bin, the second lifting bin and the third lifting bin do not work, the first lifting bin, the second lifting bin and the third lifting bin can be retracted on the floor, so that the first lifting bin, the second lifting bin and the third lifting bin cannot occupy too high to be stored conveniently.
The mechanical arm designed by the application adopts a winding rod and consists of three groups of roller-skate lifting structures, so that the mechanical arm is more labor-saving when in use.
Drawings
Fig. 1 is a schematic structural view of an auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank pail.
Fig. 2 is a schematic structural view of an elevation section in an auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank pail.
Fig. 3 is a schematic structural diagram of an auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank bucket after lifting.
Fig. 4 is a schematic top view of an auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank pail.
In the figure: the device comprises a base plate 1, a rotating motor 2, a first lifting bin 3, a second lifting bin 4, a third lifting bin 5, a rotating shaft 6, a first winding roller 7, a fixed seat 8, a belt 9, a second winding roller 10, a third winding roller 11, a workbench 12, an electric telescopic rod 13, an auxiliary mechanical clamping jaw 14, a liquid nitrogen tank 15, a fourth winding roller 16, a fifth winding roller 17, a sixth winding roller 18, a clamping block 19, a connecting rod 20 and a concave block 21.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 4, in the embodiment of the present utility model, an auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank lifting barrel includes a base plate 1, a rotating motor 2, a first lifting bin 3, a second lifting bin 4, a third lifting bin 5, a rotating shaft 6, a first winding roller 7, a fixed seat 8, a belt 9, a second winding roller 10, a third winding roller 11, a workbench 12, an electric telescopic rod 13, an auxiliary mechanical clamping jaw 14, a fourth winding roller 16, a fifth winding roller 17, a sixth winding roller 18, a clamping block 19, a connecting rod 20, and a concave block 21; the left side of the upper end surface of the bottom plate 1 is provided with a fixed seat 8, the upper end of the fixed seat 8 is provided with a rotating motor 2, the upper end of the rotating motor 2 is movably connected with a belt transmission lifting structure, the upper end of the belt transmission lifting structure is fixedly connected with a connecting structure, the rightmost side of the connecting structure is provided with a grabbing structure, the upper end of the rotating motor 2 is provided with a first winding roller 7, the upper end of the first winding roller 7 is provided with a rotating shaft 6, the right side of the fixed seat 8 is provided with a first lifting bin 3, the first lifting bin 3 is fixedly connected with the bottom plate 1, the front end surface of the first lifting bin 3 is provided with a second winding roller 10, the right side of the lower end of the first lifting bin 3 is provided with a sixth winding roller 18, the right side of the first lifting bin 3 is provided with a second lifting bin 4, the second lifting bin 4 is movably connected with the bottom plate 1, the front end surface of the second lifting bin 4 is provided with a third winding roller 11, the lower end of the second lifting bin 4 is provided with a fifth winding roller 17, the right side of the second lifting bin 4 is provided with a third lifting bin 5, the third lifting bin 5 is movably connected with the bottom plate 1, the lower end of the third lifting bin 5 is provided with a fourth winding roller 16 at the left side, the belt 9 is movably connected with the first winding roller 7, the second winding roller 10, the third winding roller 11, the fourth winding roller 16, the fifth winding roller 17 and the sixth winding roller 18, the left and right ends of the inner side walls of the first lifting bin 3 and the second lifting bin 4 are respectively provided with a clamping block 19, the clamping blocks 19 and the clamping blocks 19 are respectively arranged in an axisymmetric manner, the left and right ends of the inner side walls of the second lifting bin 4 and the third lifting bin 5 are respectively provided with a concave block 21, the concave blocks 21 and the concave blocks 21 are respectively arranged in an axisymmetric manner, the concave blocks 21 and the clamping blocks 19 can be correspondingly matched, the inner side walls of the second lifting bin 4 and the third lifting bin 5 are respectively fixedly connected with a connecting rod 20, the wire winding roller is fixedly connected to the upper end of the connecting rod 20, a workbench 12 is arranged on the right side of the third lifting bin 5, an electric telescopic rod 13 is arranged at the right central position of the lower end of the workbench 12, and an auxiliary mechanical clamping jaw 14 is fixedly connected to the lower end of the electric telescopic rod 13.
The working principle of the utility model is as follows: when being used for lifting the liquid nitrogen tank, when shifting the liquid nitrogen tank: the mechanical arm is moved to the side of the liquid nitrogen tank to be moved, then the auxiliary mechanical clamping jaw is controlled to lift through the electric telescopic rod to clamp the liquid nitrogen tank, then the rotating motor is started, the rotating motor drives the first winding roller and the belt at the upper end, the second lifting bin and the third lifting bin are lifted to the upper end through the cooperation of the second winding roller, the third winding roller, the fourth winding roller, the fifth winding roller, the sixth winding roller and the belt, then the trailer is moved to the bottom of the liquid nitrogen tank, and then the liquid nitrogen tank is put down, so that the liquid nitrogen tank is lifted easily, the liquid nitrogen tank can be placed on the trailer easily during transferring, time and labor are saved, the liquid nitrogen tank is safer, and the mechanical lifting device is simple and reasonable in structural design and convenient and quick to use.
When being used for taking out the liquid nitrogen container pail from the liquid nitrogen container, the staff at first removes this arm next door to corresponding liquid nitrogen container, then opens the liquid nitrogen container lid, fixes the handle of the liquid nitrogen container pail that needs to take out on auxiliary machinery clamping jaw, starts the rotating electrical machines afterwards, and the rotating electrical machines drives first winding roller and the belt of upper end, realizes through the cooperation of second winding roller, third winding roller, fourth winding roller, fifth winding roller, sixth winding roller and belt that second lift bin, third lift bin go up to the upper end and go up to suitable height with the liquid nitrogen container pail, then carries out follow-up operation to the liquid nitrogen container pail, this arm structural design is simple, convenient operation. And when the first lifting bin, the second lifting bin and the third lifting bin do not work, the first lifting bin, the second lifting bin and the third lifting bin can be retracted on the floor, so that the first lifting bin, the second lifting bin and the third lifting bin cannot occupy too high to be stored conveniently.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (10)

1. The utility model provides an auxiliary mechanical arm for liquid nitrogen container or liquid nitrogen container pail go up and down, includes bottom plate (1), belt drive elevation structure, connection structure and snatchs the structure, its characterized in that, bottom plate (1) up end left side is provided with fixing base (8), and fixing base (8) upper end is provided with rotation motor (2), and rotation motor (2) upper end swing joint has belt drive elevation structure, belt drive elevation structure upper end fixedly connected with connection structure, connection structure right side is provided with snatchs the structure, snatchs the structure and is used for snatching liquid nitrogen container or liquid nitrogen container pail.
2. An auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank lifting barrel according to claim 1, wherein the belt transmission lifting structure comprises a first lifting bin (3), a second lifting bin (4), a third lifting bin (5), a rotating shaft (6), a first winding roller (7), a fixing seat (8), a belt (9), a second winding roller (10), a third winding roller (11), a fourth winding roller (16), a fifth winding roller (17) and a sixth winding roller (18), and the upper end of the rotating motor (2) is provided with the first winding roller (7).
3. The auxiliary mechanical arm for lifting of the liquid nitrogen tank or the liquid nitrogen tank lifting barrel according to claim 2 is characterized in that a rotating shaft (6) is arranged at the upper end of the first winding roller (7), a first lifting bin (3) is arranged on the right side of the fixing seat (8), the first lifting bin (3) is fixedly connected with the bottom plate (1), and a second winding roller (10) is arranged on the front end face of the first lifting bin (3).
4. An auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank lifting barrel according to claim 3, wherein a sixth winding roller (18) is arranged at the right side of the lower end of the first lifting bin (3), a second lifting bin (4) is arranged on the right side of the first lifting bin (3), the second lifting bin (4) is movably connected with the bottom plate (1), a third winding roller (11) is arranged on the front end surface of the second lifting bin (4), and a fifth winding roller (17) is arranged at the left side of the lower end of the second lifting bin (4).
5. The auxiliary mechanical arm for lifting the liquid nitrogen tank or the liquid nitrogen tank lifting barrel according to claim 4, wherein a third lifting bin (5) is arranged on the right side of the second lifting bin (4), the third lifting bin (5) is movably connected with the bottom plate (1), and a fourth winding roller (16) is arranged at the position, far to the left, of the lower end of the third lifting bin (5).
6. An auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank pail according to claim 5, characterized in that the belt (9) is movably connected with the first winding roller (7), the second winding roller (10), the third winding roller (11), the fourth winding roller (16), the fifth winding roller (17) and the sixth winding roller (18).
7. An auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank lifting barrel according to claim 3, characterized in that the connecting structure comprises a clamping block (19), a connecting rod (20) and a concave block (21), and clamping blocks (19) are arranged at the left end and the right end of the inner side walls of the first lifting bin (3) and the second lifting bin (4).
8. The auxiliary mechanical arm for lifting the liquid nitrogen tank or the liquid nitrogen tank lifting barrel according to claim 7, wherein the clamping blocks (19) and the clamping blocks (19) are axially symmetrically arranged, concave blocks (21) are respectively arranged at the left end and the right end of the inner side wall of the second lifting bin (4) and the inner side wall of the third lifting bin (5), the concave blocks (21) and the concave blocks (21) are axially symmetrically arranged, the concave blocks (21) and the clamping blocks (19) can be correspondingly matched, connecting rods (20) are respectively fixedly connected to the inner side walls of the second lifting bin (4) and the inner side wall of the third lifting bin (5), and wire winding rollers are respectively fixedly connected to the upper ends of the connecting rods (20).
9. An auxiliary mechanical arm for lifting a liquid nitrogen tank or a liquid nitrogen tank pail according to claim 1, characterized in that the grabbing structure comprises a workbench (12), an electric telescopic rod (13) and an auxiliary mechanical clamping jaw (14), and the workbench (12) is arranged on the right side of a third lifting bin (5).
10. The auxiliary mechanical arm for lifting the liquid nitrogen tank or the liquid nitrogen tank lifting barrel according to claim 9, wherein an electric telescopic rod (13) is arranged at the right central position of the lower end of the workbench (12), the lower end of the electric telescopic rod (13) is fixedly connected with an auxiliary mechanical clamping jaw (14), and the auxiliary mechanical clamping jaw (14) is used for grabbing the liquid nitrogen tank or the liquid nitrogen tank lifting barrel.
CN202322321765.2U 2023-08-29 2023-08-29 Auxiliary mechanical arm for lifting liquid nitrogen tank or liquid nitrogen tank lifting barrel Active CN221070767U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322321765.2U CN221070767U (en) 2023-08-29 2023-08-29 Auxiliary mechanical arm for lifting liquid nitrogen tank or liquid nitrogen tank lifting barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322321765.2U CN221070767U (en) 2023-08-29 2023-08-29 Auxiliary mechanical arm for lifting liquid nitrogen tank or liquid nitrogen tank lifting barrel

Publications (1)

Publication Number Publication Date
CN221070767U true CN221070767U (en) 2024-06-04

Family

ID=91250359

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322321765.2U Active CN221070767U (en) 2023-08-29 2023-08-29 Auxiliary mechanical arm for lifting liquid nitrogen tank or liquid nitrogen tank lifting barrel

Country Status (1)

Country Link
CN (1) CN221070767U (en)

Similar Documents

Publication Publication Date Title
CN113060657A (en) Green construction is with assembled floor hoist and mount positioner
CN221070767U (en) Auxiliary mechanical arm for lifting liquid nitrogen tank or liquid nitrogen tank lifting barrel
CN212769476U (en) Electric hoist bridge crane
CN210527528U (en) Vertical lifting container
CN210764135U (en) Multifunctional hydraulic lifting platform
CN214989743U (en) Steel mould hoist and mount transfer device for road construction
CN213950331U (en) Two-degree-of-freedom rotary supporting and taking lifting appliance
CN114572901A (en) Material lifting device
CN214299167U (en) Electric power safety construction operation platform
CN112209283B (en) Construction is with mechanical lifting means of operation of being convenient for
CN212269356U (en) Lifting device for cable trough cover plate
CN210656016U (en) Drum carrying device
CN210286558U (en) Novel full-automatic single-cavity double-outlet leg for lorry-mounted crane
CN210619566U (en) Device capable of automatically lifting and conveying tray
CN211056633U (en) Novel stacking type elevator
CN220578843U (en) Storage handling equipment
CN117450429B (en) Canned transportation frame for liquid oxygen production
CN218665268U (en) A hoisting equipment for new energy automobile vanning
CN220976431U (en) Building engineering construction elevating platform with protective structure
CN215514650U (en) Barrel loading device for waterproof paint production
CN214191718U (en) Novel subway foundation ditch construction is with defeated material device
CN220948064U (en) Shallow convenient to transport oil drum
CN221440248U (en) Portable hydraulic pressure packing lift that can spacing
CN214780465U (en) Mechanical lifting platform
CN215973965U (en) Barreled water stacking mechanism

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant