CN108443687A - The comprehensive regulating mechanism of security monitoring video camera - Google Patents
The comprehensive regulating mechanism of security monitoring video camera Download PDFInfo
- Publication number
- CN108443687A CN108443687A CN201810377254.3A CN201810377254A CN108443687A CN 108443687 A CN108443687 A CN 108443687A CN 201810377254 A CN201810377254 A CN 201810377254A CN 108443687 A CN108443687 A CN 108443687A
- Authority
- CN
- China
- Prior art keywords
- video camera
- fixed link
- rotation
- cabin
- motor
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 17
- 210000003781 tooth socket Anatomy 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/121—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction constituted of several dependent joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Studio Devices (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention discloses the comprehensive regulating mechanisms of security monitoring video camera, including adjusting bracket and engine base, adjusting bracket includes fixed link, rotate cabin and connecting rod, one end of fixed link is welded and fixed piece, fixed link is spirally connected wall by fixinig plate, sliding slot is offered in fixed link, fixed link inner cavity is equipped with lateral rotation motor, the outer wall for rotating cabin is equipped with sliding block, rotation cabin is socketed in fixed link, the output end of lateral rotation motor connects traverse gear, rotation cabin internal chamber wall opens up tooth socket, connecting rod is bolted in rotation cabin, engine base includes loading frame and link block, loading frame is spirally connected security monitoring video camera by screw, the connection of connecting rod one end longitudinally rotates motor, the output end connection for longitudinally rotating motor longitudinally rotates gear, link block tail portion opens up connecting cavity, connection cavity wall opens up tooth socket.The security monitoring video camera regulating mechanism of the present invention realizes the comprehensive adjusting of security monitoring video camera monitoring.
Description
Technical field
The present invention relates to safety precaution equipment technical field, specifically a kind of comprehensive regulating mechanism of security monitoring video camera.
Background technology
Security monitoring video camera plays an important role during security protection, but in some existing security and guard technologies, exists
Security monitoring video camera has prodigious visual angle blind zone in imaging gatherer process or in camera adjusting, is produced to safety precaution larger
Hidden danger.
Prior art CN106813063A provides security monitoring video camera holder and its application, and video camera is set side by side with light aid
It sets on camera shooting holder, waterproof cover is provided on the outside of video camera, demisting brush is provided on the inside of waterproof cover, is set on the outside of waterproof cover
It is equipped with the water removal brush being coaxially disposed with demisting brush, water removal brush is arranged by brush axis on waterproof cover both sides top with demisting brush both ends,
Brush axis runs through the waterproof cover, is provided with luminance sensor on the inside of waterproof cover, the output end of luminance sensor and water removal brush and
The switch of demisting brush is connected, and longitudinal shaft one end setting on wall, is provided with longitudinal motor in longitudinal shaft indoors, longitudinal
The shaft other end is provided with U-shaped frame, first support and second support top and is fixedly linked with cross bar both ends, in first support and
Two holder bottom ends are both provided with lateral shaft, and camera placements frame runs through lateral shaft, lateral electricity is provided in lateral shaft
Machine.The technological merit is that horizontal direction residing for video camera carries out rotation monitoring and can carry out pitching to regard monitoring.But the technology
Middle video camera rotational angle is limited, and there are monitoring blind area, security monitoring video camera security protection safety coefficient is low.
Invention content
The purpose of the present invention is to provide a kind of comprehensive regulating mechanisms of security monitoring video camera, to solve in above-mentioned background technology
The security monitoring video camera monitoring blind area of it is proposed is big, due to regulating mechanism at the big problem of monitoring space limitation.
To achieve the above object, the present invention provides the following technical solutions:
Including:Adjusting bracket and engine base;
The adjusting bracket includes fixed link, rotation cabin and connecting rod, wherein one end of fixed link, which is welded with, opens up screw hole
Fixinig plate, fixed link is fixedly connected with wall with wall by the screw fixinig plate that is spirally connected, outside the one end of fixed link far from wall
Side offers two sliding slots setting up and down, and lateral rotation motor is equipped with respect to the cavity position of sliding slot in fixed link, rotates cabin
Outer wall set there are two sliding block, rotation cabin is socketed on by the cooperation of sliding block and sliding slot in fixed link, lateral rotation motor it is defeated
Outlet extends to rotation cabin inner cavity and is connected with traverse gear on the extended segment, and rotation cabin internal chamber wall turns relative to lateral
The position of moving gear offer with the matched tooth socket of the gear, screw thread is offered outside connecting rod, rotates the disconnected fixation in cabin
One end of bar is equipped with Screw hole structure, and connecting rod is bolted in rotation cabin by the cooperation of screw thread and screw hole;
The engine base includes loading frame and link block, wherein loading frame is spirally connected security monitoring video camera by screw, loading frame with
Link block is integrally formed, and one end far from rotation cabin in the connecting rod is fixedly connected with by screw longitudinally rotates motor, indulges
Vertical with lateral rotation motor output end direction to rotary electric machine output end direction, this longitudinally rotates and is connected on the output end of motor
Gear is longitudinally rotated, link block tail portion offers connecting cavity, which opens up tooth socket, turns with longitudinal by tooth socket
The engagement connection of moving gear longitudinally rotates gear and is rotated.
Preferably, the engine base side is equipped with the holder of several protection security monitoring video cameras.
Preferably, the extending direction for longitudinally rotating motor output end is vertical with the camera lens of video camera direction.
Preferably, each junction in the adjusting bracket and engine base is equipped with shell and is protected to its inside.
Preferably, it is connected with rolling bearing far from the one end for longitudinally rotating motor in the connecting cavity, longitudinally rotates motor
Output end connect rotation axis, in the rotation axis clamping longitudinally rotate gear engagement tooth socket and matched with the rolling bearing.
Compared with prior art, the beneficial effects of the invention are as follows:
The present invention is by lateral rotation motor and longitudinally rotates motor and controls video camera base respectively in vertical direction and water
Square to being rotated, realize that security monitoring video camera can carry out space 360 ° omni-directional adjusting imaging the when of acquiring;The present invention passes through
Rotation, simple in structure, adjusting simplicity are realized using rotary electric machine and rotation shaft structure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the comprehensive regulating mechanism of security monitoring video camera of the present invention;
Fig. 2 is the structural schematic diagram of security monitoring video camera of the present invention comprehensive regulating mechanism adjusting bracket and fixinig plate;
Fig. 3 is the connection diagram of security monitoring video camera of the present invention comprehensive regulating mechanism adjusting bracket and engine base;
Fig. 4 is the connection signal that the comprehensive regulating mechanism of security monitoring video camera of the present invention longitudinally rotates gear and rolling bearing
Figure;
Reference numeral:1- adjusting brackets, 101- fixed links, 102- rotate cabin, 103- connecting rods, 104- fixinig plates, 2- machines
Seat, 201- loading frames, 202- link blocks, 203- holders, 3- sliding slots, 4- lateral rotation motors, 5- sliding blocks, 6- lateral rotation teeth
Wheel, 7- longitudinally rotate motor, 701- rotation axis, and 8- longitudinally rotates gear, 9- rolling bearings.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig.1-4
As depicted in figs. 1 and 2, the comprehensive regulating mechanism of a kind of security monitoring video camera, including:Adjusting bracket 1 and engine base 2.It adjusts
Each junction on section holder 1 and engine base 2 is equipped with shell and is protected to its inside.
Adjusting bracket 1 includes fixed link 101, rotation cabin 102 and connecting rod 103, wherein is welded one end of fixed link 101
There is a fixinig plate 104 for opening up screw hole, fixed link 101 is fixedly connected with wall by the screw fixinig plate 104 that is spirally connected with wall.
Fixed link 101 offers two sliding slots 3 setting up and down on the outside of one end far from wall, opposite in fixed link 101
The cavity position of sliding slot 3 is equipped with lateral rotation motor 4, and the outer wall in rotation cabin 102 is set there are two sliding block 5, and rotation cabin 102 passes through cunning
Block 5 and the cooperation of sliding slot 3 are socketed in fixed link 101.
The output end of lateral rotation motor 4 extends to rotation 102 inner cavity of cabin and is connected with lateral rotation on the extended segment
Gear 6, rotation 102 internal chamber wall of cabin offer and the matched tooth socket of the gear, connection relative to the position of traverse gear 6
Screw thread is offered outside bar 103, one end of rotation 102 disconnected fixed link 101 of cabin is equipped with Screw hole structure, and connecting rod 103 passes through
The cooperation of screw thread and screw hole is bolted in rotation cabin 102.
Rotation cabin 102 is socketed in fixed link 101 and drives the cooperation of sliding block 5 and sliding slot by lateral rotation motor 4.Turn
Dynamic cabin 102 is rotated by lateral rotation motor 4 and traverse gear 6 with engaging for tooth socket.
As shown in figure 3, engine base 2 includes loading frame 201 and link block 202, wherein loading frame 201 is spirally connected peace by screw
Anti-camcorder, 2 side of engine base are equipped with the holders 203 of several protection security monitoring video cameras, 202 one of loading frame 201 and link block at
Type.
One end far from rotation cabin 102 in connecting rod 103 is fixedly connected with by screw longitudinally rotates motor 7, Zong Xiangzhuan
Dynamic 7 output end of motor is connected towards towards vertical, this is longitudinally rotated with 4 output end of lateral rotation motor on the output end of motor 7
Longitudinally rotate gear 8.
The extending direction for longitudinally rotating 7 output end of motor is vertical with the camera lens of video camera direction.202 tail portion of link block opens up
There is connecting cavity, which opens up tooth socket, is connect with the engagement for longitudinally rotating gear 8 by tooth socket and longitudinally rotates gear
8 are rotated.
As shown in figure 4, being connected with rolling bearing 9 far from the one end for longitudinally rotating motor 7 in connecting cavity, motor is longitudinally rotated
7 output end connects rotation axis 701, in the rotation axis 701 clamping longitudinally rotate gear 8 engage tooth socket and with the rolling bearing 9
It matches.
The comprehensive regulating mechanism of security monitoring video camera of the present invention by lateral rotation motor and longitudinally rotates motor and controls respectively
Video camera base processed is vertically and horizontally being rotated, and realizes that security monitoring video camera can carry out space when imaging acquisition
360 ° omni-directional is adjusted;Rotation, simple in structure, adjusting simplicity are realized by using rotary electric machine and rotation shaft structure.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of comprehensive regulating mechanism of security monitoring video camera, including:Adjusting bracket (1) and engine base (2), it is characterised in that:
The adjusting bracket (1) includes fixed link (101), rotation cabin (102) and connecting rod (103), wherein fixed link (101)
One end be welded with the fixinig plate (104) for opening up screw hole, fixed link (101) is spirally connected the fixinig plate (104) and wall by screw
It is fixedly connected with wall, fixed link (101) offers two sliding slots (3) setting up and down, fixed link on the outside of one end far from wall
(101) it is equipped with lateral rotation motor (4) with respect to the cavity position of sliding slot (3) on, the outer wall of rotation cabin (102) is set there are two sliding block
(5), rotation cabin (102) is socketed on by the cooperation of sliding block (5) and sliding slot (3) in fixed link (101), lateral rotation motor (4)
Output end extend to rotation cabin (102) inner cavity and be connected with traverse gear (6) on the extended segment, rotate cabin (102)
Internal chamber wall is offered relative to the position of traverse gear (6) and is opened with the matched tooth socket of the gear, connecting rod (103) outside
Equipped with screw thread, one end of rotation cabin (102) disconnected fixed link (101) is equipped with Screw hole structure, connecting rod (103) by screw thread with
The cooperation of screw hole is bolted in rotation cabin (102);
The engine base (2) includes loading frame (201) and link block (202), wherein loading frame (201) is spirally connected security protection by screw
Video camera, loading frame (201) are integrally formed with link block (202), and one far from rotation cabin (102) on the connecting rod (103)
End is fixedly connected with by screw longitudinally rotates motor (7), longitudinally rotates motor (7) output end direction and lateral rotation motor
(4) output end is towards vertical, this, which longitudinally rotates to be connected on the output ends of motor (7), longitudinally rotates gear (8), link block
(202) tail portion offers connecting cavity, which opens up tooth socket, by tooth socket with longitudinally rotate engaging for gear (8)
Connection longitudinally rotates gear (8) and is rotated.
2. the comprehensive adjustment structure of a kind of security monitoring video camera according to claim 1, which is characterized in that the engine base (2)
Side is equipped with the holder (203) of several protection security monitoring video cameras.
3. the comprehensive regulating mechanism of a kind of security monitoring video camera according to claim 1, which is characterized in that described to longitudinally rotate
The extending direction of motor (7) output end is vertical with the camera lens of video camera direction.
4. the comprehensive regulating mechanism of a kind of security monitoring video camera according to claim 1, which is characterized in that the adjusting bracket
(1) and each junction on engine base (2) is equipped with shell, for being protected to its inside.
5. the comprehensive regulating mechanism of a kind of security monitoring video camera according to claim 1, which is characterized in that in the connecting cavity
It is connected with rolling bearing (9) far from the one end for longitudinally rotating motor (7), longitudinally rotates the output end connection rotation axis of motor (7)
(701), clamping longitudinally rotates gear (8) engagement tooth socket and is matched with the rolling bearing (9) in the rotation axis (701).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810377254.3A CN108443687A (en) | 2018-04-25 | 2018-04-25 | The comprehensive regulating mechanism of security monitoring video camera |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810377254.3A CN108443687A (en) | 2018-04-25 | 2018-04-25 | The comprehensive regulating mechanism of security monitoring video camera |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108443687A true CN108443687A (en) | 2018-08-24 |
Family
ID=63201546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810377254.3A Pending CN108443687A (en) | 2018-04-25 | 2018-04-25 | The comprehensive regulating mechanism of security monitoring video camera |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108443687A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109274868A (en) * | 2018-09-23 | 2019-01-25 | 王虹 | The monitoring camera of three-dimensional adjustment can be achieved |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203421451U (en) * | 2013-07-10 | 2014-02-05 | 广州市地下铁道总公司 | Support for intelligent monitoring camera |
CN205592601U (en) * | 2015-12-15 | 2016-09-21 | 杭州海康威视数字技术股份有限公司 | A support for gun type camera |
CN206472234U (en) * | 2017-02-24 | 2017-09-05 | 上海苏柏建筑智能系统有限公司 | A kind of intelligent elevator supervising device |
US20170254469A1 (en) * | 2016-03-07 | 2017-09-07 | Panasonic Intellectual Property Management Co., Ltd. | Pan tilt drive device and camera device |
CN107770424A (en) * | 2017-10-31 | 2018-03-06 | 河南豪威智能科技有限公司 | A kind of monitoring camera equipment of convenient regulation |
CN107830334A (en) * | 2017-12-20 | 2018-03-23 | 西安龙之梦网络信息有限公司 | A kind of camera fixing device for safety monitoring engineering |
CN107956970A (en) * | 2017-12-26 | 2018-04-24 | 河南靓之声电子科技有限公司 | A kind of full visual angle home monitor |
CN208381685U (en) * | 2018-04-25 | 2019-01-15 | 合肥市艾特米信息技术有限公司 | The comprehensive regulating mechanism of security monitoring video camera |
-
2018
- 2018-04-25 CN CN201810377254.3A patent/CN108443687A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN203421451U (en) * | 2013-07-10 | 2014-02-05 | 广州市地下铁道总公司 | Support for intelligent monitoring camera |
CN205592601U (en) * | 2015-12-15 | 2016-09-21 | 杭州海康威视数字技术股份有限公司 | A support for gun type camera |
US20170254469A1 (en) * | 2016-03-07 | 2017-09-07 | Panasonic Intellectual Property Management Co., Ltd. | Pan tilt drive device and camera device |
CN206472234U (en) * | 2017-02-24 | 2017-09-05 | 上海苏柏建筑智能系统有限公司 | A kind of intelligent elevator supervising device |
CN107770424A (en) * | 2017-10-31 | 2018-03-06 | 河南豪威智能科技有限公司 | A kind of monitoring camera equipment of convenient regulation |
CN107830334A (en) * | 2017-12-20 | 2018-03-23 | 西安龙之梦网络信息有限公司 | A kind of camera fixing device for safety monitoring engineering |
CN107956970A (en) * | 2017-12-26 | 2018-04-24 | 河南靓之声电子科技有限公司 | A kind of full visual angle home monitor |
CN208381685U (en) * | 2018-04-25 | 2019-01-15 | 合肥市艾特米信息技术有限公司 | The comprehensive regulating mechanism of security monitoring video camera |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109274868A (en) * | 2018-09-23 | 2019-01-25 | 王虹 | The monitoring camera of three-dimensional adjustment can be achieved |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106402608B (en) | A kind of concealed multi-faceted adjustable security protection camera | |
CN206117837U (en) | Camera is taken photograph in combination | |
CN210623967U (en) | Electronic monitoring equipment capable of adjusting monitoring angle | |
CN107795808A (en) | A kind of device for being used to review personnel activity track | |
CN207634932U (en) | A kind of Omnibearing adjustable video monitoring camera | |
CN108443687A (en) | The comprehensive regulating mechanism of security monitoring video camera | |
CN207195998U (en) | A kind of multi-lens array camera structure that platform is thought based on sea | |
CN209029805U (en) | A kind of power transmission cable apparatus for examination and repair | |
CN208381685U (en) | The comprehensive regulating mechanism of security monitoring video camera | |
CN104763867B (en) | The drive mechanism of monitoring device | |
CN109869585A (en) | A kind of multi-functional multispectral camera bracket | |
CN109024398A (en) | A kind of Cleaning vehicle for guardrail is with can automatic adjustable cleaning device | |
CN216715628U (en) | Multidirectional adjustment mechanism of monitor probe | |
CN214171904U (en) | High-temperature camera installation device in furnace | |
CN108613000A (en) | A kind of monitoring device that coverage is wide | |
CN206790639U (en) | A kind of monitoring probe for public security bureau | |
CN107588299A (en) | A kind of detachable head | |
CN209201182U (en) | A kind of panorama Collaborative Control video camera | |
CN209041914U (en) | A kind of security protection camera rack | |
CN107979713A (en) | A kind of video camera | |
CN215258889U (en) | Transmission line monitoring devices convenient to adjust fixed angle | |
CN213871817U (en) | Dustproof control safety control equipment of joint formula based on intrusion prevention | |
CN213394360U (en) | 360 all-round surveillance camera support of degree | |
CN212809453U (en) | Intelligent monitoring robot for traffic events of highway tunnel | |
CN208074512U (en) | A kind of rotary panorama captures three-dimensional camera automatically |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |