CN217408141U - Supporting leg and storage rack - Google Patents

Supporting leg and storage rack Download PDF

Info

Publication number
CN217408141U
CN217408141U CN202221220113.9U CN202221220113U CN217408141U CN 217408141 U CN217408141 U CN 217408141U CN 202221220113 U CN202221220113 U CN 202221220113U CN 217408141 U CN217408141 U CN 217408141U
Authority
CN
China
Prior art keywords
plate
foot
connecting block
connecting plate
footing
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
CN202221220113.9U
Other languages
Chinese (zh)
Inventor
林峰
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN202221220113.9U priority Critical patent/CN217408141U/en
Application granted granted Critical
Publication of CN217408141U publication Critical patent/CN217408141U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Handcart (AREA)

Abstract

The utility model discloses a supporter and supporting legs thereof. The supporting leg comprises an upright post, a footing and a fastener, wherein the upright post is convexly provided with a connecting block, and the connecting block is provided with a first assembling hole; the bottom foot is hollow, the connecting block is inserted into the bottom foot, and a second assembling hole is formed in the position, corresponding to the first assembling hole, of the bottom foot; the fastener is arranged in the second assembling hole in a penetrating mode and is connected with the stand column through the first assembling hole. So, through set up in the footing on the stand can dismantle the connecting block of connection to adopt the fastener to be connected the footing with the connecting block, thereby, before packing transportation, can break off the footing and be connected with the stand, be convenient for pack straight banding footing and stand, avoid using heterotypic packing, reduce packaging cost, and can be convenient for transport. When the user uses, can insert the inside in the footing with the connecting block to adopt the fastener to dismantle the connection with footing and connecting block, in order to realize the fast assembly and the dismantlement of footing and stand.

Description

Supporting leg and storage rack
Technical Field
The utility model relates to a supporter technical field, concretely relates to supporting legs, and application the supporter of supporting legs.
Background
In daily life, people often use the commodity shelf to store sundries or books and the like, and the existing commodity shelf is generally directly placed on the ground or supported on the ground through supporting legs. Because the body frame of supporter is close to the wall, and supporting legs perpendicular to wall, both connect and form L type structure, so, present supporting legs is the integrative structure setting of L type usually, so, leads to L type supporting legs when packing, need set up heterotypic packing alone, has not only promoted the cost of packing, is not convenient for transport moreover.
SUMMERY OF THE UTILITY MODEL
The utility model provides a supporter and supporting legs thereof to solve the technical problem that the transportation is not convenient for to supporting legs dysmorphism packing.
In order to solve the technical problem, the utility model discloses a technical scheme be: providing a support foot comprising: the device comprises a vertical column, a first fixing plate and a second fixing plate, wherein a connecting block is arranged on the vertical column in a protruding mode, and a first assembling hole is formed in the connecting block; the bottom foot is arranged in a hollow mode, the connecting block is inserted into the bottom foot, and a second assembling hole is formed in the position, corresponding to the first assembling hole, of the bottom foot; and the fastener penetrates through the second assembling hole and is connected with the upright post through the first assembling hole.
Optionally, the extending direction of the connecting block is perpendicular to the extending direction of the upright post; and/or the axial direction of the first assembly hole and the axial direction of the second assembly hole are parallel to the extending direction of the upright post.
Optionally, the connecting block includes a first connecting plate provided with the first fitting hole.
Optionally, the connecting block further comprises a second connecting plate and a third connecting plate, the second connecting plate and the third connecting plate are arranged at intervals, and the first connecting plate is connected between the second connecting plate and the third connecting plate.
Optionally, the second connecting plate and the third connecting plate are both symmetrically arranged with respect to the first connecting plate.
Optionally, the bottom foot includes a top plate, a bottom plate, and two opposite side plates connected between the top plate and the bottom plate, and the second connecting plate and the third connecting plate abut against the top plate, the bottom plate, and the two side plates, respectively.
Optionally, the second assembly hole is disposed through the bottom plate.
Optionally, the connecting block includes a collar plate disposed around an outer periphery of the first fitting hole, the collar plate includes a third fitting hole communicating with the first fitting hole, and the fastener is inserted into the first fitting hole and the third fitting hole.
Optionally, the opposite ends of the foot have openings, the connecting block is inserted into one of the openings, and the support leg further includes a connecting plate connected to an end of the foot facing away from the connecting block for covering the other opening of the foot.
For solving the technical problem, the utility model discloses a another technical scheme is: there is provided a rack comprising a main frame and at least one support foot as described above for supporting the main frame.
The beneficial effects of the utility model are that: the embodiment of the utility model provides a can dismantle the connecting block of being connected with the footing through setting up on the stand to adopt the fastener to be connected footing and connecting block, thereby, before packing transportation, can break off the footing and be connected with the stand, be convenient for pack straight banding footing and stand, avoid using heterotypic packing, reduce packaging cost, and can be convenient for transport. When the user uses, can insert the inside in the footing with the connecting block to adopt the fastener to wear to locate to set up the second pilot hole on the footing respectively and set up the first pilot hole on the connecting block, thereby can dismantle the connection with footing and connecting block, with the fast assembly and the dismantlement that realize footing and stand.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic perspective view of a supporting leg according to an embodiment of the present invention;
FIG. 2 is an exploded view of the support foot of FIG. 1;
FIG. 3 is a cross-sectional structural view of the support foot of FIG. 1;
fig. 4 is a schematic perspective view of a column of a support foot according to another embodiment of the present invention;
fig. 5 is a schematic perspective view of a shelf according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic perspective view of a support foot 100 according to an embodiment of the present invention, fig. 2 is an exploded view of the support foot 100 in fig. 1, and fig. 3 is a schematic cross-sectional view of the support foot 100 in fig. 1. The utility model provides a supporting legs 100, supporting legs 100 include stand 10, footing 20 and fastener 30. The upright post 10 is provided with a connecting block 11 in a protruding way, and the connecting block 11 is provided with a first assembling hole 112; the bottom foot 20 is hollow, the connecting block 11 is inserted into the bottom foot 20, and a second assembling hole 21 is arranged at the position of the bottom foot 20 corresponding to the first assembling hole 112; the fastener 30 is inserted into the second assembling hole 21 and connected with the upright post 10 through the first assembling hole 112.
Particularly, the upright post 10 can be made of a straight strip-shaped material, and can be made of a hollow section bar, so that the processing efficiency of the upright post 10 can be improved, the weight of the upright post 10 can be reduced, and the upright post 10 is convenient to transport and can be flexibly adjusted in height as required due to the fact that the upright post 10 is made of the section bar, and production and manufacturing are facilitated.
Or, in some application scenarios where the requirement on the structural strength of the vertical column 10 is relatively high, the solid vertical column 10 may also be used to improve the bearing capacity of the supporting foot 100.
The connecting block 11 may be connected to the upright 10 by bonding, welding or clamping, and then protrudes from the surface of the upright 10. The foot 20 may be made of a straight strip material, and may be hollow. So, before packing transportation, can break off the connection of footing 20 and stand 10, be convenient for pack straight banding footing 20 and stand 10, avoid using heterotypic packing, reduce packaging cost to can be convenient for transport. When the connecting block 11 is used by a user, the connecting block 11 can be inserted into the foot 20, and the fasteners 30 are adopted to penetrate through the second assembling holes 21 respectively arranged on the foot 20 and the first assembling holes 112 arranged on the connecting block 11, so that the foot 20 and the connecting block 11 can be detachably connected, and the quick assembly and disassembly of the foot 20 and the upright post 10 can be realized.
Alternatively, the cross section of the pillar 10 may be provided in a circular, square, or oval shape, etc., and the cross section of the foot 20 may be provided in a circular, square, or oval shape, etc., depending on the place where the supporting foot 100 is used. In order to facilitate the connection of the connecting block 11, the upright 10 and the foot 20, the upright 10 may be generally provided with a square cross section, and the foot 20 may also be provided with a square cross section.
Further, as shown in fig. 2 and 3, the connection block 11 may be provided to extend in a direction perpendicular to the upright post 10, and thus, the foot 20 may be vertically connected to the upright post 10 to improve the connection stability.
Alternatively, the axial direction of the first fitting hole 112 and the axial direction of the second fitting hole 21 may be provided to be perpendicular to the extending direction of the column 10, or the axial direction of the first fitting hole 112 and the axial direction of the second fitting hole 21 may be provided to be parallel to the extending direction of the column 10. That is, the axial direction of the first fitting hole 112 is in the vertical direction shown in fig. 3, and when the fastening member 30 is coupled to the attachment block 11 through the first fitting hole 112, the axial direction of the fastening member 30 is also in the vertical direction shown in fig. 3, so that the fastening member 30 can be disposed in the vertical direction, avoiding the fastening member 30 from occupying a lateral space to scratch or damage an object in contact with the fastening member 30.
As shown in fig. 2, when the cross section of the foot 20 is square, the connecting block 11 may be provided to include a first connecting plate 113, a second connecting plate 114 and a third connecting plate 115, the second connecting plate 114 and the third connecting plate 115 are spaced apart, and the first connecting plate 113 is connected between the second connecting plate 114 and the third connecting plate 115.
Specifically, the second connection plate 114 and the third connection plate 115 may be spaced in parallel and symmetrically disposed at opposite sides of the first connection plate 113 to form the H-shaped or U-shaped connection block 11. Because the periphery shape of the connecting block 11 of H type or U type is roughly square, so, when inserting connecting block 11 inside square footing 20, the butt that the lateral wall of connecting block 11 and the inside wall of footing 20 can be better, and then the stability of connection is promoted. Moreover, since most of the area between the second connecting plate 114 and the third connecting plate 115 is hollow, the use of materials can be reduced, thereby reducing the weight and saving the cost.
Wherein, connecting block 11 can directly adopt the section bar cutting of H type or U type to make to promote connecting block 11's production efficiency, be convenient for mass production.
Or, the second connecting plate 114 and the third connecting plate 115 may be disposed in a non-parallel manner, but disposed in an inclined manner, so as to form the V-shaped connecting block 11, and since the opposite ends of the second connecting plate 114 and the third connecting plate 115 will also abut against the foot 20, the connection between the upright post 10 and the foot 20 can be realized.
Further, the second connection plate 114 and the third connection plate 115 may be provided to be both symmetrically disposed with respect to the first connection plate 113. That is, the opposite ends of the second connecting plate 114 are equidistant from the first connecting plate 113, and the angles between the second connecting plate 114 and the first connecting plate 113 on both sides of the first connecting plate 113 are equal. The opposite ends of the third connecting plate 115 are equidistant from the first connecting plate 113, and the included angles between the third connecting plate 115 and the first connecting plate 113 on the two sides of the first connecting plate 113 are equal. So, can make the relative both sides atress of first connecting plate 113 even to promote the stability of being connected of connecting block 11 and stand 10, avoid the relative both sides atress of connecting block 11 inhomogeneous and separate with stand 10.
As shown in fig. 2, the foot 20 includes a top plate 22, a bottom plate 23, and two opposite side plates 24 connected between the top plate 22 and the bottom plate 23, and the second connecting plate 114 and the third connecting plate 115 abut against the top plate 22, the bottom plate 23, and the two side plates 24, respectively.
Specifically, the cross section of the bottom foot 20 is square, the top plate 22 and the bottom plate 23 are arranged in parallel at intervals, and the two opposite side plates 24 are arranged in parallel at intervals. The surfaces of the second connecting plate 114 and the third connecting plate 115, which face away from each other, abut against the inner surfaces of the two opposite side plates 24, and the surfaces of the second connecting plate 114 and the third connecting plate 115, which are parallel to the plane of the first connecting plate 113, abut against the inner surfaces of the top plate 22 and the bottom plate 23, respectively. So, the lateral surface of connecting block 11 all can be stable with the medial surface butt of footing 20, and then avoid connecting block 11 to take place to rock in the inside of footing 20.
Further, as shown in fig. 2 and 3, the first assembling hole 112 is disposed on the first connecting plate 113, the second assembling hole 21 penetrates through the bottom plate 23, the fastening member 30 can be a screw, and the screw penetrates through the second assembling hole 21 from one side of the bottom plate 23 and is connected with the connecting block 11 through the first assembling hole 112, so that the nut portion of the screw can be located below the bottom plate 23, and the foot 20 can be used for shielding the nut, so as to improve the visual effect.
In order to save materials, the thickness of the first connection plate 113 in the axial direction of the first fitting hole 112 is generally set small.
As shown in fig. 2 and 3, it may be provided that the connection block 11 includes a surrounding plate 116, the surrounding plate 116 is disposed around the periphery of the first fitting hole 112, the surrounding plate 116 includes a third fitting hole 117 communicating with the first fitting hole 112, and the fastener 30 is further inserted into the first fitting hole 112 and the third fitting hole 117.
Specifically, the surrounding plate 116 is provided in a continuous circular shape, and the end of the fastening member 30 protruding from the first connection plate 113 is provided in a space surrounded by the surrounding plate 116, whereby the fastening member 30 can be protected.
Further, the inside wall that can set up third pilot hole 117 on bounding wall 116 and the inside wall of first pilot hole 112 are located the coplanar, and also be equipped with the screw thread with fastener 30 adaptation on the inside wall of third pilot hole 117, when being connected fastener 30 and connecting block 11, bounding wall 116 can increase the length of closure of fastener 30 and connecting block 11, and then promotes the joint strength of fastener 30 and connecting block 11, avoids fastener 30 to take place to break away from.
Further, since the foot 20 is hollow, in order to improve the productivity of the foot 20, a straight bar-shaped pipe may be generally used for cutting production, so that the opposite ends of the foot 20 have the openings 25. When the foot 20 is connected to the upright 10, the connecting block 11 is inserted into one of the openings 25, but the opening 25 of the foot 20 at the end facing away from the connecting block 11 is open and can easily be rusted or damaged by the ingress of dust, moisture, etc., and the presence of the opening 25 can also result in a weaker end of the foot 20.
Thus, as shown in fig. 1 and 2, it can be provided that the support foot 100 further comprises a connecting plate 40, which connecting plate 40 is connected to the end of the foot 20 facing away from the connecting block 11 for covering the further opening 25 at the end of the foot 20. In this way, the connecting plate 40 can form a closed space inside the bottom foot 20, so as to prevent external impurities from entering the inside of the bottom foot 20 and damaging the bottom foot 20. Moreover, due to the presence of the connecting plate 40, the periphery of the opening 25 of the foot 20 can be supported, thereby increasing the structural strength of the end of the foot 20 and avoiding deformation of the foot 20.
The connecting plate 40 may be made of a thin plate, and may be connected to the foot 20 by welding or bonding, so as to simplify the assembly complexity of the support foot 100.
Further, as shown in fig. 2 and 3, the upright 10 is disposed protruding from the bottom plate 23 of the foot 20, and the supporting foot 100 includes at least one supporting member 50, and the at least one supporting member 50 is disposed at an end of the foot 20 facing away from the upright 10.
Specifically, the supporting foot 100 includes a supporting member 50, the supporting member 50 is spaced apart from the upright post 10 along the length direction of the foot 20, one end of the supporting member 50 is connected to the bottom plate 23 of the foot 20, and the other end of the supporting member 50 is used for supporting on a supporting surface, so as to keep the bottom plate 23 of the foot 20 at a certain distance from the supporting surface, and prevent impurities or dirt on the supporting surface from contacting the foot 20 and damaging the foot 20.
Alternatively, the number of the supporting members 50 can be two, three or four, and the plurality of supporting members 50 are arranged at intervals along the length direction of the foot 20.
As shown in fig. 4, fig. 4 is a schematic perspective view of the upright post 10 supporting the foot according to another embodiment of the present invention. When the cross section of the foot 20 is square, it may be provided that the connecting block 11 only comprises the first connecting plate 113, the first connecting plate 113 being provided with the first assembly hole 112.
Specifically, the cross-sectional shape of the first connecting plate 113 is the same as the cross-sectional shape of the foot 20, the first connecting plate 113 is inserted into the foot 20, the first assembling hole 112 may penetrate through the first connecting plate 113, or may not penetrate through the first connecting plate 113, the second assembling hole 21 may be only disposed on the bottom plate of the foot 20, at this time, the fastener 30 may adopt a threaded fastener such as a screw, and the screw penetrates through the second assembling hole 21 and is screwed into the first assembling hole 112.
It is understood that the second assembly hole 21 can be disposed only on the top plate of the foot 20, and in this case, the fastener 30 can be a threaded fastener such as a screw, which is inserted through the second assembly hole 21 and screwed into the first assembly hole 112. By providing the second fitting hole 21 only on one of the top plate 22 or the bottom plate 23 of the foot 20, the number of components can be reduced, and the fitting can be made more convenient.
Further, in order to make the top plate 22 and the bottom plate 23 of the foot 20 uniformly stressed, the second assembling hole 21 may be simultaneously provided on the top plate 22 and the bottom plate 23, and the fastening member 30 may include a bolt and a nut, and the bolt is connected with the nut after sequentially passing through the second assembling hole 21, the first assembling hole 112 and the other second assembling hole 21 from one side of the foot 20.
Further, please refer to fig. 5, fig. 5 is a schematic perspective view of a shelf according to an embodiment of the present invention. Based on supporting legs 100 in the above-mentioned embodiment, the utility model discloses still provide a supporter 00, supporter 00 includes body frame 200 and at least one supporting leg 100, and supporting legs 100 connects on body frame 200 for support body frame 200.
In this embodiment, the structure of the supporting foot 100 is the same as the structure of the supporting foot 100 in the above embodiments, please refer to the description in the above embodiments, and the description of this embodiment is omitted.
Optionally, the body frame 200 can be for being used for piling up the goods shelves of article, and at this moment, the body frame 200 can use with the desk cooperation, can set up supporter 00 between desk and wall promptly to can utilize the space of desk top to put the thing, so, can reduce the shared space of supporter 200. In addition, since the support leg 100 in this embodiment is an L-shaped structure, the main frame 200 can be closely attached to the wall, thereby avoiding interference with the desk.
Or, the body frame 200 can be the desk of official working, or, also can be the wardrobe etc. can be through the length of adjusting footing 20 to with supporting legs 100 and the body frame 200 adaptation of difference, and then form multiple supporter 00, in order to be applicable to multiple life scene.
In conclusion, those skilled in the art can easily understand that the embodiment of the present invention can disassemble the connecting block 11 for connection by arranging on the bottom foot 20 on the column 10, and adopt the fastening member 30 to connect the bottom foot 20 with the connecting block 11, so that before the package transportation, the connection between the bottom foot 20 and the column 10 can be disconnected, which is convenient for packaging the straight bottom foot 20 and the column 10, avoiding the use of special-shaped package, reducing the packaging cost, and being convenient for transportation. When the user uses, can insert the inside in footing 20 with connecting block 11 to adopt fastener 30 to wear to locate the second pilot hole 21 that sets up respectively on footing 20 and the first pilot hole 112 of setting on connecting block 11, thereby can be with footing 20 and connecting block 11 demountable connection, in order to realize the quick assembly and the dismantlement of footing 20 and stand 10.
The above is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures or equivalent processes made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the patent protection scope of the present invention.

Claims (10)

1. A support foot, comprising:
the device comprises a vertical column, a first fixing plate and a second fixing plate, wherein a connecting block is arranged on the vertical column in a protruding mode, and a first assembling hole is formed in the connecting block;
the bottom foot is arranged in a hollow mode, the connecting block is inserted into the bottom foot, and a second assembling hole is formed in the position, corresponding to the first assembling hole, of the bottom foot; and
and the fastener penetrates through the second assembling hole and is connected with the upright post through the first assembling hole.
2. A support foot according to claim 1, characterised in that the direction of extension of the connecting piece is perpendicular to the direction of extension of the upright; and/or the axial direction of the first assembly hole and the axial direction of the second assembly hole are parallel to the extending direction of the upright post.
3. A support foot according to claim 1, characterised in that the connecting block comprises a first connecting plate provided with the first fitting hole.
4. The support foot of claim 3, wherein the connecting block further comprises a second connecting plate and a third connecting plate, the second connecting plate and the third connecting plate being spaced apart, the first connecting plate being connected between the second connecting plate and the third connecting plate.
5. A support foot according to claim 4, wherein the second and third connection plates are both symmetrically arranged about the first connection plate.
6. The support foot of claim 4, wherein the foot comprises a top plate, a bottom plate, and two opposing side plates connected between the top plate and the bottom plate, the second connecting plate and the third connecting plate abutting the top plate, the bottom plate, and the two side plates, respectively.
7. A support foot according to claim 6, characterised in that the second fitting aperture is provided through the base plate.
8. The support foot according to claim 1, wherein the connecting block includes a collar plate provided around an outer periphery of the first fitting hole, the collar plate includes a third fitting hole communicating with the first fitting hole, and the fastener is inserted into the first fitting hole and the third fitting hole.
9. A support foot according to any one of claims 1-8, characterised in that the foot has openings at opposite ends, the connecting block being inserted in one of the openings, the support foot further comprising a connecting plate connected to the end of the foot facing away from the connecting block for covering the other opening of the foot.
10. Article carrier, characterized in that it comprises a main frame and at least one support foot according to any of claims 1-9 for supporting the main frame.
CN202221220113.9U 2022-05-19 2022-05-19 Supporting leg and storage rack Active CN217408141U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221220113.9U CN217408141U (en) 2022-05-19 2022-05-19 Supporting leg and storage rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221220113.9U CN217408141U (en) 2022-05-19 2022-05-19 Supporting leg and storage rack

Publications (1)

Publication Number Publication Date
CN217408141U true CN217408141U (en) 2022-09-13

Family

ID=83186800

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221220113.9U Active CN217408141U (en) 2022-05-19 2022-05-19 Supporting leg and storage rack

Country Status (1)

Country Link
CN (1) CN217408141U (en)

Similar Documents

Publication Publication Date Title
KR101391455B1 (en) Assembly method shelf and its non-bolted
US6142589A (en) Combination storage rack
CN217408141U (en) Supporting leg and storage rack
KR20090030379A (en) A pallet for packing corner join a connector
KR101105274B1 (en) Desk
EP2593374B1 (en) Crate
US20180127206A1 (en) Structural member connection having improved structural support
KR102455731B1 (en) Assembly for box
CN215226363U (en) Shelf beam
KR20100013457A (en) Apparatus for fastening frames of a detachable rack
EP2127556A1 (en) Plate tensioning shelf
CN208264796U (en) A kind of pile wooden framed case being easy to dismount recycling
JP3141972U (en) Rack fitting
KR20020077037A (en) Multistage goods a showcase
CN107569020B (en) Support clamping foot and display rack provided with same
CN202022374U (en) Structurally improved cargo cage
KR200385887Y1 (en) Showcase made from aluminum alloy section
CN215400970U (en) Light goods shelf
CN205187073U (en) Shelf structure
CN220263510U (en) Packaging structure for improving stacking strength and stacking packaging device
CN213269096U (en) Modularization display device
CN217937778U (en) Combined picture frame
CN211309279U (en) Steel tray for vertical warehouse
CN213429031U (en) Connecting piece
CN210653195U (en) Light universal portable combined cart

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant