CN206191220U - Take photograph camera support and video monitoring device - Google Patents

Take photograph camera support and video monitoring device Download PDF

Info

Publication number
CN206191220U
CN206191220U CN201621227499.0U CN201621227499U CN206191220U CN 206191220 U CN206191220 U CN 206191220U CN 201621227499 U CN201621227499 U CN 201621227499U CN 206191220 U CN206191220 U CN 206191220U
Authority
CN
China
Prior art keywords
screw rod
connecting screw
gear
knob
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
CN201621227499.0U
Other languages
Chinese (zh)
Inventor
谢清伟
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.)
Hangzhou Hikvision Digital Technology Co Ltd
Original Assignee
Hangzhou Hikvision Digital Technology 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 Hangzhou Hikvision Digital Technology Co Ltd filed Critical Hangzhou Hikvision Digital Technology Co Ltd
Priority to CN201621227499.0U priority Critical patent/CN206191220U/en
Application granted granted Critical
Publication of CN206191220U publication Critical patent/CN206191220U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

An embodiment of the utility model discloses a take photograph camera support and video monitoring device, relates to video monitoring technical field, convenient regulation to taking the photograph the shooting angle of camera among the camera. It includes to take the photograph the camera support: knob, a connecting screw rod, the 2nd connecting screw rod, flexonics axle, fixed bolster and gear, a knob and a connecting screw rod one end fixed connection, a connecting screw rod other end with flexonics axle one end fixed connection, the flexonics axle other end with the 2nd connecting screw rod fixed connection, the 2nd connecting screw rod with gear fixed connection, gear locates on the fixed bolster. The utility model is suitable for a video monitoring occasion is to the installation of taking the photograph camera and image pick -up angles's adjustment.

Description

A kind of camera mount and video monitoring apparatus
Technical field
The utility model is related to video monitoring apparatus technical field, more particularly, to the video camera branch in video monitoring apparatus Frame.
Background technology
In the prior art, during use of the video camera in installation process and after installation, it is often necessary to pass through Support adjusts the shooting angle of camera in video camera, to meet the monitoring requirement of video camera in varying environment.
Fig. 1 is the structural representation of video monitoring apparatus in the prior art, and the video monitoring apparatus include camera mount 01, video camera 02 is fixed on camera mount 01 by locking knob 03, by the adjustable camera of rotation lock knob 03 02 setting angle, thus in adjustable camera camera shooting angle.
Existing this video monitoring apparatus, when mounted or in use, can by rotation lock knob 03 come The setting angle of video camera 02 is adjusted, to realize the regulation to the shooting angle of camera in video camera.However, working as video monitoring When device is difficult the position directly touched and is such as arranged on position higher installed in operating personnel, this operation just seems very Inconvenience.
The content of the invention
In view of this, the utility model embodiment provides a kind of camera mount and video monitoring apparatus, convenient to shooting The regulation of the shooting angle of camera in machine.
In a first aspect, the utility model embodiment provides a kind of camera mount, including:Knob, the first connecting screw rod, Two connecting screw rods, flexible connection axle, fixed support and gear mechanism;
The knob is fixedly connected with first connecting screw rod one end, and the first connecting screw rod other end is with the flexibility even Spindle one end is fixedly connected, and the flexible connection axle other end is fixedly connected with second connecting screw rod, second connection Screw rod is fixedly connected with the gear mechanism, and the gear mechanism is on the fixed support.
With reference in a first aspect, in the first implementation method of first aspect, the flexible connection axle includes:Steel hank knotting, The steel hank knotting two ends are welded to connect with first connecting screw rod and the second connecting screw rod.
With reference to the first implementation method of first aspect, in second implementation method of first aspect, the flexibility is even Spindle also includes:Spring and rubber tube, on the steel hank knotting, one end of the spring is connected the spring housing with described first Screw rod is mutually fixed, and the other end is mutually fixed with second connecting screw rod, and the rubber sleeve is on the spring.
With reference in a first aspect, in the third implementation method of first aspect, the knob is provided with connecting pole, the company Connect and screwed hole is provided with post, one end of first connecting screw rod connects in the screwed hole and with the screwed hole screw thread Connect.
With reference to the third implementation method of first aspect, in the 4th kind of implementation method of first aspect, the video camera Support also includes:Knob base and the first nut;
The knob base includes dial, and axle sleeve is provided with the dial;
Connecting pole on the knob is provided with external screw thread;
Connecting pole on the knob is located in the centre bore on the axle sleeve, and first nut is located at the axle sleeve End and be fastenedly connected with the external screw thread on the connecting pole so that the knob is pressed against on the dial;
The knob is provided with the tuning drive gear corresponding with the scale on the dial.
With reference to the 4th kind of implementation method of first aspect, in the 5th kind of implementation method of first aspect, described shooting Machine support also includes the second nut;
The end of the axle sleeve of the knob base is provided with external screw thread;The screw thread of second nut is set on the axle sleeve External screw thread on.
With reference in a first aspect, in the 6th kind of implementation method of first aspect, the gear mechanism include first gear and Second gear, the first gear is intermeshed with second gear, and the first gear is fixed with second connecting screw rod and connected Connect;
The knob is rotated, by the first connecting screw rod, flexible connection axle and the second connecting screw rod that are fixedly connected sequentially, The first gear is driven to rotate.
With reference to the 6th kind of implementation method of first aspect, in the 7th kind of implementation method of first aspect, first tooth Wheel is fixedly connected by the central shaft being fixedly connected with the first gear with second connecting screw rod, the second connection spiral shell It is threadedly coupled between bar and the fixed support;Or, second connecting screw rod is used as the central shaft of the first gear Directly it is fixedly connected with the first gear, is threadedly coupled between second connecting screw rod and the fixed support.
Second aspect, the utility model embodiment provides a kind of video monitoring apparatus, including video camera and camera mount; Wherein, the camera mount is the camera mount described in foregoing any embodiment;The video camera and the gear mechanism Driven gear in structure is fixedly connected;
The knob is rotated, by the first connecting screw rod, flexible connection axle and the second connecting screw rod that are fixedly connected sequentially, The gear mechanism is driven to rotate, the rotation of the gear mechanism drives the video camera to rotate.
A kind of camera mount and video monitoring apparatus that the utility model embodiment is provided, the first connecting screw rod, flexibility Connecting shaft and the second connecting screw rod are fixedly linked successively, and the knob for operating is connected with the first connecting screw rod, for shooting The connected gear mechanism of machine is connected with the second connecting screw rod;When rotating the knob, by the first connection being fixedly connected sequentially Screw rod, flexible connection axle and the second connecting screw rod, drive the gear mechanism to rotate, the rotation of the gear mechanism can drive with The connected video camera of the gear mechanism is rotated, and the regulation to the shooting angle of camera in video camera is achieved in, even if regarding When frequency supervising device is difficult the position directly touched and is such as arranged on position higher installed in operating personnel, also can be easily real Now to the regulation of the shooting angle of camera in video camera.Additionally, the axle for being used for transmitting regulation moment of torsion in the utility model is soft Property axle, can arbitrarily convert its shape or position, not limited by self structure and arrangement space, adapt to different mounting rings Border, video camera of the gear mechanism to being fixed in described device is employed on this basis carries out the regulation of position angle, may be used also Improve the precision of regulation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of video monitoring apparatus in the prior art;
Fig. 2 is the structural representation of the utility model camera mount embodiment one;
Fig. 3 is the partial structural diagram of flexible connection axle in the utility model camera mount embodiment two;
Fig. 4 is the structural representation of knob and the first connecting screw rod junction in the utility model camera mount embodiment three Figure;
Fig. 5 is the structural representation of the utility model monitor camera device embodiment.
Specific embodiment
The utility model embodiment is described in detail below in conjunction with the accompanying drawings.
It will be appreciated that described embodiment is only a part of embodiment of the utility model, rather than whole implementation Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made The all other embodiment for obtaining, belongs to the scope of the utility model protection.
Embodiment one
Fig. 2 is the structural representation of the utility model camera mount embodiment one.Referring to shown in Fig. 2, the present embodiment is taken the photograph Camera cradle, including:Knob 1, the first connecting screw rod 2, the second connecting screw rod 3, flexible connection axle 4, fixed support 5 and gear mechanism Structure 6;The knob 1 is fixedly connected with described one end of first connecting screw rod 2, and the other end of the first connecting screw rod 2 is soft with described Property the one end of connecting shaft 4 be fixedly connected, the flexible connection other end of axle 4 is fixedly connected with second connecting screw rod 3, described the Two connecting screw rods 3 are fixedly connected with the gear mechanism 6, and the gear mechanism 6 is on fixed support 5.
In the present embodiment, the knob 1 is manual operational unit, can be passed through between the connecting screw rod 2 of the knob 1 and first The mode of welding is fixedly connected, and can also be threadably secured and link together;First connecting screw rod 2 and the second connecting screw rod 3 can It is fixedly connected with flexible connection axle 4 by way of welding respectively;Fixed support 5 is used for being fixed on the fixation at video monitoring scene On thing, such as it is fixed on the wall at video monitoring scene or in vertical rod;The gear mechanism 6 is used for being connected with video camera, so as to Video camera is driven to rotate.
In the present embodiment, during turning knob 1, by the first connecting screw rod 2, flexible connection axle 4 and that are fixedly connected sequentially Second connecting screw rod 3, drives the gear mechanism 6 to rotate, and the rotation of the gear mechanism 6 can drive and the gear mechanism 6 Connected video camera is rotated, and is achieved in the regulation to the shooting angle of camera in video camera, even if video monitoring apparatus are pacified When being difficult the position directly touched mounted in operating personnel and being such as arranged on position higher, can also conveniently realize in video camera The regulation of the shooting angle of camera.
Additionally, the axle for being used for transmitting regulation moment of torsion in the present embodiment is flexible shaft, its shape or position can be arbitrarily converted, Do not limited by self structure and arrangement space, adapted to different installation environments.Furthermore, gear mechanism is employed in the present embodiment Structure carries out the regulation of position angle to the video camera being fixed in described device, can also improve the precision of regulation.
Embodiment two
The structure of the present embodiment camera mount is essentially identical with the structure of embodiment one, and difference is, referring to Fig. 2 And shown in Fig. 3, in the present embodiment, the flexible connection axle 4 includes steel hank knotting 41, and the two ends of steel hank knotting 41 connect with described first respectively The connecting screw rod 3 of screw rod 2 and second is connect to be fixedly connected using welding manner.
In order to be played a protective role to flexible connection axle 4, and increase flexible connection axle 4 rigidity in use, ginseng See shown in Fig. 3, the flexible connection axle 4 also includes spring 42 and rubber tube 43, and spring 43 is enclosed within steel hank knotting 41, spring 42 One end is mutually fixed with first connecting screw rod 2, and the other end is mutually fixed with second connecting screw rod 3,43 sets of the rubber tube On the spring 43.
Embodiment three
The structure of the present embodiment camera mount is essentially identical with the structure of embodiment two, and difference is, referring to Fig. 2 And shown in Fig. 4, in the present embodiment, in order to strengthen the intensity of knob 1 itself and be easy to the knob 1 with first connecting screw rod 2 are reliably connected, and in the present embodiment, the knob 1 is provided with connecting pole 11, screwed hole 12, institute are provided with the connecting pole 11 The one end for stating the first connecting screw rod 2 is threadedly coupled in the screwed hole 12 and with the screwed hole 12.
Alternatively, in order that the angle adjustment of video camera is more accurate, in the present embodiment, described camera mount is also wrapped Include:The nut 8 of knob base 7 and first;The knob base 7 includes dial 71, and axle sleeve 72 is provided with the dial 71; Connecting pole 11 on the knob 1 is provided with external screw thread 13;Connecting pole 11 on the knob 1 is located on the axle sleeve 72 In centre bore 73, first nut 8 is located at the end of the axle sleeve 72 and is fastened with the external screw thread 13 on the connecting pole 11 Connection, so that the knob 1 is pressed against on the dial 71;The knob 1 can be relatively rotated relative to knob base 7; The knob 1 is provided with the tuning drive gear 13 corresponding with the scale 74 on the dial 71, refer to Fig. 5, the scale Pointer 13 can be that origin or arrow for being located on knob 1 etc. can be engaged to indicate with the scale 74 on the dial 71 Institute's knob rotates many wide-angles relative to dial 71.
Wherein, internal diameter size of the outside dimension of first nut 8 more than the axle sleeve 72.First nut 8 sets It is fastenedly connected in the end of the axle sleeve 72 and with the external screw thread 13 on the connecting pole 11, can is knob 1 and the scale Cooperation between disk 71 provides a pretightning force.So as to knob 1 be pressed against with dial 71.
When using, knob 1 is set to be rotated relative to dial 71, knob 1 drives and is connected spiral shell with first that knob 1 is fixedly connected Bar 2 is rotated, and thus drives the flexible connection connecting screw rod 3 of axle 4 and second to rotate, and the rotation of the second connecting screw rod 3 drives the tooth The rotation of wheel mechanism middle gear.The scale turned over by the tuning drive gear on the knob 1, can be with gear described in precise control The rotational angle of mechanism's middle gear, the adjustment thus, it is possible to accurately realize camera angle.
Alternatively, for the ease of the fixation of the knob base 7, in the present embodiment, described camera mount also includes Second nut 9;The end of the axle sleeve 72 of the knob base 7 is provided with external screw thread 74;The screw thread of second nut 9 is set in institute State on the external screw thread 74 on axle sleeve 72.A fixture in the form of sheets can be clamped between second nut 9 and the dial 71 Part, so that the knob base 7 is fixed on the fixed object of the sheet.
Referring to Fig. 2, in the present embodiment, the gear mechanism includes first gear C1 and second gear C2, first tooth Wheel C1 and second gear C2 is intermeshed, and the first gear C1 is driving gear, is fixed with second connecting screw rod 3 and connected Connect, the second gear C2 is driven gear;The knob 1 is rotated, by the first connecting screw rod 2 for being fixedly connected sequentially, soft Property the connecting screw rod 3 of connecting shaft 4 and second, drive the first gear C1 to rotate.
In the present embodiment, the first gear C1 can by the central shaft being fixedly connected with the first gear C1 with it is described Second connecting screw rod is fixedly connected, and is threadedly coupled between second connecting screw rod 3 and the fixed support 5.Alternatively, it is described Second connecting screw rod 3 can also directly be fixedly connected as the central shaft of the first gear C1 with the first gear C1, It is threadedly coupled between second connecting screw rod 3 and the fixed support 5.In the present embodiment, when knob 1 is rotated, can be made Two connecting screw rods 3 are rotated on fixed support, and the second connecting screw rod 3 is fixed due to the central shaft with the first gear C1 and connected Connect, and then drive first gear C1 to rotate by the second connecting screw rod 3, the rotation of first gear C1 drives second gear C2 to turn It is dynamic, and then video camera turn S certain angle can be driven.
Second connecting screw rod 3 can have various with the mode that the first gear C1 is directly fixedly connected, used as one Optional connection method is planted, the second connecting screw rod 3 can be threadedly coupled by screw thread with the gear center hole.As another kind even Mode is connect, screw thread can not also be set in second connecting screw rod, and directly pass through to be bonded between gear center hole to connect.As Another optional connected mode, does not set screw thread in second connecting screw rod, at least one end of second connecting screw rod Section is polygon, and the centre bore of the first gear is polygonal through hole, and one end of the second connecting screw rod stretches into described first In the polygon centre bore of gear, the two interference connection.
It is provided with positioning through hole on the fixed support 5,51, the installation for fixed support 5 to be fixed on monitoring site is put down On face, positioning through hole 51 is provided with four, and is evenly arranged on fixed support 5, and positioning through hole 51 is strip through hole.
The first axle 52 that is rotatably assorted with first gear C1 is additionally provided with the fixed support 5 and is rotated with second gear C2 The second axle 53 for coordinating.The first gear C1 can be rotated around first axle 52, and the second gear C2 can be rotated around the second axle 53. The first axle 52 is fixedly connected with second connecting screw rod 3, between second connecting screw rod 3 and the fixed support 5 Threaded connection.
A cloth line three-way hole 54 is also provided with the fixed support 5, for laying power line etc..As an alternative embodiment, The limited post 55 of projection is additionally provided with fixed support 5, is engaged with the stopper slot 56 on second gear C2, for limiting second The angle that gear C 2 is rotated.Multiple studs 57 are provided with second gear C2, its around the uniform annular distribution of the second axle, for matching somebody with somebody Close nut and be fixedly connected video camera.
Fig. 5 is the structural representation of the utility model monitor camera device embodiment.Referring to shown in Fig. 5, the present embodiment is supervised Control camera head, including video camera S and camera mount L;Wherein, the camera mount L is described in foregoing any embodiment Camera mount;The video camera S is fixedly connected with the driven gear in the gear mechanism 6;The knob is rotated, is passed through The first connecting screw rod 2, the flexible connection connecting screw rod 3 of axle 4 and second being fixedly connected sequentially, drive the gear mechanism 6 to rotate, The rotation of the gear mechanism 6 drives the video camera turn S.The beneficial effect of the present embodiment has with aforementioned video camera support Beneficial effect is similar, will not be repeated here.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment Intrinsic key element.In the absence of more restrictions, the key element limited by sentence " including ... ", it is not excluded that Also there is other identical element in the process including the key element, method, article or equipment.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to In this, any one skilled in the art in the technical scope that the utility model is disclosed, the change that can be readily occurred in Change or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with right It is required that protection domain be defined.

Claims (9)

1. a kind of camera mount, it is characterised in that including:Knob, the first connecting screw rod, the second connecting screw rod, flexible connection Axle, fixed support and gear mechanism;
The knob is fixedly connected with first connecting screw rod one end, the first connecting screw rod other end and the flexible connection axle One end is fixedly connected, and the flexible connection axle other end is fixedly connected with second connecting screw rod, second connecting screw rod It is fixedly connected with the gear mechanism, the gear mechanism is on the fixed support.
2. camera mount according to claim 1, it is characterised in that the flexible connection axle includes:It is steel hank knotting, described Steel hank knotting two ends are welded to connect with first connecting screw rod and the second connecting screw rod.
3. camera mount according to claim 2, it is characterised in that the flexible connection axle also includes:Spring and rubber Sebific duct, the spring housing on the steel hank knotting, with first connecting screw rod mutually fix by one end of the spring, the other end with Second connecting screw rod is mutually fixed, and the rubber sleeve is on the spring.
4. camera mount according to claim 1, it is characterised in that the knob is provided with connecting pole, the connection Screwed hole is provided with post, one end of first connecting screw rod is threadedly coupled in the screwed hole and with the screwed hole.
5. camera mount according to claim 4, it is characterised in that also include:Knob base and the first nut;
The knob base includes dial, and axle sleeve is provided with the dial;
Connecting pole on the knob is provided with external screw thread;
Connecting pole on the knob is located in the centre bore on the axle sleeve, and first nut is located at the end of the axle sleeve Portion is simultaneously fastenedly connected with the external screw thread on the connecting pole, so that the knob is pressed against on the dial;
The knob is provided with the tuning drive gear corresponding with the scale on the dial.
6. camera mount according to claim 5, it is characterised in that also including the second nut;
The end of the axle sleeve of the knob base is provided with external screw thread;The screw thread of second nut is set in outer on the axle sleeve On screw thread.
7. camera mount according to claim 1, it is characterised in that the gear mechanism includes first gear and second Gear, the first gear is intermeshed with second gear, and the first gear is fixedly connected with second connecting screw rod;
The knob is rotated, by the first connecting screw rod, flexible connection axle and the second connecting screw rod that are fixedly connected sequentially, is driven The first gear is rotated.
8. camera mount according to claim 7, it is characterised in that the first gear by with the first gear The central shaft being fixedly connected is fixedly connected with second connecting screw rod, between second connecting screw rod and the fixed support Threaded connection;Or
Second connecting screw rod is directly fixedly connected as the central shaft of the first gear with the first gear, described It is threadedly coupled between second connecting screw rod and the fixed support.
9. a kind of video monitoring apparatus, it is characterised in that including video camera and camera mount;Wherein, the camera mount Camera mount described in any one of preceding claims 1 to 8;
The video camera is fixedly connected with the driven gear in the gear mechanism;
The knob is rotated, by the first connecting screw rod, flexible connection axle and the second connecting screw rod that are fixedly connected sequentially, is driven The gear mechanism is rotated, and the rotation of the gear mechanism drives the video camera to rotate.
CN201621227499.0U 2016-11-14 2016-11-14 Take photograph camera support and video monitoring device Active CN206191220U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621227499.0U CN206191220U (en) 2016-11-14 2016-11-14 Take photograph camera support and video monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621227499.0U CN206191220U (en) 2016-11-14 2016-11-14 Take photograph camera support and video monitoring device

Publications (1)

Publication Number Publication Date
CN206191220U true CN206191220U (en) 2017-05-24

Family

ID=58726263

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621227499.0U Active CN206191220U (en) 2016-11-14 2016-11-14 Take photograph camera support and video monitoring device

Country Status (1)

Country Link
CN (1) CN206191220U (en)

Similar Documents

Publication Publication Date Title
CN108687789A (en) A kind of robot hand connection head
CN206191220U (en) Take photograph camera support and video monitoring device
CN206738122U (en) Power station auxiliary feedwater pneumatic pump hypervelocity flyball adjustment instrument
CN105883488A (en) Portable wire winding machine for self-adaptive variable-diameter wire and wire winding method
CN208792359U (en) It is a kind of to use advanced composite material (ACM) electric power line pole tower anti-tipping apparatus
CN205258513U (en) Adjustable rocking arm rotation angle's device
CN207707106U (en) A kind of wire dispenser
CN207132826U (en) A kind of large diameter pipeline special measuring tool for metal supervision
CN109323099A (en) A kind of computer display support for capableing of pre- preventing cervical spondylosis
CN209180571U (en) A kind of municipal pipeline photocuring repair in well head draw liner heavy sheave wheels group
CN209095324U (en) Fixed clamping device is used in a kind of finishing of bearing
CN209520752U (en) A kind of curve bend polishing device for inner wall
CN207216440U (en) A kind of force force measuring machine of minute-pressure apparatus for adjusting force
CN104014924B (en) Full-automatic aluminum thread pressure welding machine is for silk device
CN214558006U (en) Device for adjusting size of thread rolling wheel of straight thread rolling machine by worm
CN107866774A (en) A kind of vernier angle anti-rotation power driven tools
CN204893387U (en) Screw screw up device in step
CN210781670U (en) Wisdom is data acquisition appearance for water utilities monitoring
CN209784226U (en) Central exposure device for digital ray DR imaging by using directional ray machine
CN208128477U (en) A kind of sound column suspension arrangement
CN208366245U (en) A kind of sleeve diameter cubing easy to adjust
CN207522462U (en) A kind of simple monkey wrench
CN206072674U (en) Novel camera fast assembling-disassembling equipment
CN206627086U (en) A kind of stroke caliberating device for linear hydraulic cylinder
CN208645361U (en) A kind of robot hand connection head

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant