CN111720701A - Laser measuring instrument support convenient to angle regulation - Google Patents
Laser measuring instrument support convenient to angle regulation Download PDFInfo
- Publication number
- CN111720701A CN111720701A CN202010629093.XA CN202010629093A CN111720701A CN 111720701 A CN111720701 A CN 111720701A CN 202010629093 A CN202010629093 A CN 202010629093A CN 111720701 A CN111720701 A CN 111720701A
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- CN
- China
- Prior art keywords
- fixedly connected
- belt pulley
- motor
- connecting plate
- bearing
- 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.)
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Classifications
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- 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
- F16M11/20—Undercarriages with or without wheels
- F16M11/22—Undercarriages with or without wheels with approximately constant height, e.g. with constant length of column or of legs
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- 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
- F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
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- 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
- F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
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- 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
- F16M11/123—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 the axis of rotation intersecting in a single point, e.g. by using gimbals
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- 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
Abstract
The invention discloses a laser measuring instrument support convenient for angle adjustment, which comprises a connecting plate, wherein a first bearing is fixedly embedded in the middle of the upper surface of the connecting plate, a first motor is fixedly connected to the middle of the bottom surface of the connecting plate, the output end of the first motor is fixedly connected with a rotating shaft, and one end of the rotating shaft, which is far away from the first motor, penetrates through the first bearing and extends to the upper part of the connecting plate. This laser measuring instrument support convenient to angle regulation, right side fixedly connected with second motor through the horizontal pole upper surface, the output fixedly connected with second belt pulley of second motor, can drive the second belt pulley and rotate, be connected with first belt pulley transmission through the second belt pulley, first belt pulley and threaded rod fixed connection, threaded rod and screwed pipe threaded connection, can drive the screwed pipe and remove, pass through crank connecting rod fixed hinge through axis of rotation and threaded rod, can make the horizontal pole rotate around first round pin axle, thereby can adjust the measurement angle of laser measuring instrument body.
Description
Technical Field
The invention relates to the technical field of instruments, in particular to a laser measuring instrument support convenient for angle adjustment.
Background
The laser measuring instrument is also called as a laser range finder, is an instrument for measuring the distance to a target by using a certain parameter of modulated laser, and is divided into a phase method range finder and a pulse method range finder according to a distance measuring method, wherein the pulse type laser range finder emits a beam or a sequence of short pulse laser beams to the target when in work, a photoelectric element receives the laser beams reflected by the target, and a timer measures the time from the emission to the reception of the laser beams and calculates the distance from an observer to the target.
Because the accuracy requirement of measurement is higher, laser measuring apparatu need place on fixed support, avoids handheld measuring error because of the shake produces, but puts on the support and does not have handheld flexibility again, and is inconvenient to the regulation of angle, and the inaccuracy of angle modulation will influence the accuracy of measurement and can cause even that the measurement can not arrive.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the laser measuring instrument support convenient for angle adjustment, and solves the problem of inconvenience in angle adjustment of the laser measuring instrument support.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a laser measuring instrument support convenient for angle adjustment comprises a connecting plate, wherein a first bearing is fixedly inlaid in the middle of the upper surface of the connecting plate, a first motor is fixedly connected to the middle of the bottom surface of the connecting plate, an output end of the first motor is fixedly connected with a rotating shaft, one end of the rotating shaft, far away from the first motor, penetrates through the first bearing and extends to the upper part of the connecting plate, an inner ring of the first bearing is fixedly connected with the outer surface of the rotating shaft, one end of the rotating shaft, far away from the first motor, is fixedly hinged with a cross rod through a first pin shaft, the left side surface of the cross rod is fixedly connected with a laser measuring instrument body, a through hole is formed in the right side of the upper surface of the cross rod, a second bearing is fixedly inlaid in the left side wall of the through hole, a threaded rod is fixedly connected, the surface that second bearing one end was kept away from to the threaded rod and the inner circle fixed connection of third bearing, the right side fixedly connected with head rod of axis of rotation, the one end that the axis of rotation was kept away from to the head rod articulates through second round pin axle is fixed has the second connecting rod, the one end that the second round pin axle was kept away from to the second connecting rod has the third connecting rod through third round pin axle fixed hinge, the one end that the third round pin axle was kept away from to the third connecting rod is fixed to be inlayed and is had the screwed pipe with threaded rod looks adaptation, screwed pipe and threaded rod threaded connection.
Preferably, four corners of the bottom surface of the connecting plate are fixedly connected with supporting legs, and each supporting leg is inclined.
Preferably, the right side of the upper surface of the cross rod is fixedly connected with a second motor, and the outer surface of the right end of the threaded rod is fixedly connected with a first belt pulley.
Preferably, the output end of the second motor is fixedly connected with a second belt pulley, and the second belt pulley is in transmission connection with the first belt pulley through a belt.
Preferably, the second belt pulley is located right above the first belt pulley, and a gap is reserved between the right side face of the first belt pulley and the inner side wall of the through hole.
Preferably, the vertical surface where the rotating shaft is located is perpendicular to the horizontal surface where the connecting plate is located, and the horizontal surface where the threaded rod is located is perpendicular to the vertical surface where the third connecting rod is located.
(III) advantageous effects
The invention provides a laser measuring instrument support convenient for angle adjustment, which has the following beneficial effects:
(1) this laser measuring instrument support convenient to angle regulation, the first motor of bottom surface fixedly connected with through the connecting plate, the output fixedly connected with axis of rotation of first motor can drive the axis of rotation and rotate, has connected the horizontal pole through the top fixed hinge of axis of rotation, and the left surface and the laser measuring instrument body fixed connection of horizontal pole can drive horizontal pole and laser measuring instrument body and rotate to the angle of measurement of regulation laser measuring instrument body that can be convenient.
(2) This laser measuring instrument support convenient to angle regulation, right side fixedly connected with second motor through the horizontal pole upper surface, the output fixedly connected with second belt pulley of second motor, can drive the second belt pulley and rotate, be connected with first belt pulley transmission through the second belt pulley, can drive first belt pulley and rotate, through first belt pulley and threaded rod fixed connection, threaded rod and screwed pipe threaded connection, can drive the screwed pipe and remove, pass through crank connecting rod fixed hinge through axis of rotation and threaded rod, can make the horizontal pole rotate around first round pin axle, thereby can adjust the angle of measurement of laser measuring instrument body.
Drawings
FIG. 1 is a cross-sectional view of a front view of a web of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to the present invention.
In the figure: the laser measuring instrument comprises a rotating shaft 1, a second bearing 2, a cross rod 3, a laser measuring instrument body 4, a first pin shaft 5, a threaded rod 6, a second connecting rod 7, a first connecting rod 8, a second pin shaft 9, a supporting leg 10, a first motor 11, a first bearing 12, a connecting plate 13, a belt 14, a second motor 15, a third bearing 16, a first belt pulley 17, a through hole 18, a third pin shaft 19, a threaded pipe 20, a third connecting rod 21 and a second belt pulley 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a laser measuring instrument support convenient for angle adjustment comprises a connecting plate 13, four corners of the bottom surface of the connecting plate 13 are fixedly connected with supporting legs 10, each supporting leg 10 is in an inclined shape, the device is supported by the supporting legs 10 in an inclined shape, the supporting is more stable, a first bearing 12 is fixedly embedded in the middle of the upper surface of the connecting plate 13, a first motor 11 is fixedly connected to the middle of the bottom surface of the connecting plate 13, an output end of the first motor 11 is fixedly connected with a rotating shaft 1, a vertical surface where the rotating shaft 1 is located is perpendicular to a horizontal plane where the connecting plate 13 is located, the gravity of the rotating shaft 1 is perpendicular to the connecting plate 13, the supporting is more stable, the measurement is more accurate, one end, away from the first motor 11, of the rotating shaft 1 penetrates through the first bearing 12 and extends to the upper portion of the connecting plate 13, an inner ring of the first bearing 12 is fixedly connected with the outer surface of the rotating shaft 1, one end, away from, the laser measuring instrument comprises a cross rod 3, a laser measuring instrument body 4 is fixedly connected to the left side of the cross rod 3, a through hole 18 is formed in the right side of the upper surface of the cross rod 3, a second bearing 2 is fixedly embedded in the left side wall of the through hole 18, a threaded rod 6 is fixedly connected to the inner ring of the second bearing 2, a third bearing 16 is fixedly embedded in the right side wall of the through hole 18, the outer surface of one end, away from the second bearing 2, of the threaded rod 6 is fixedly connected with the inner ring of the third bearing 16, a second motor 15 is fixedly connected to the right side of the upper surface of the cross rod 3, the second motor 15 is a forward and reverse motor and is also called forward and reverse rotation of a motor, the forward and reverse rotation of the motor is represented by clockwise rotation and anticlockwise rotation of the motor, the clockwise rotation of the motor is reverse rotation of the motor, a forward, the outer surface of the right end of the threaded rod 6 is fixedly connected with a first belt pulley 17, the output end of a second motor 15 is fixedly connected with a second belt pulley 22, the second belt pulley 22 is in transmission connection with the first belt pulley 17 through a belt 14, the second motor 15 is in transmission connection with the second belt pulley 22 through the first belt pulley 17 to drive the threaded rod 6 to rotate, the second belt pulley 22 is positioned right above the first belt pulley 17 and is convenient for transmission connection through the belt 14, a gap is reserved between the right side surface of the first belt pulley 17 and the inner side wall of the through hole 18 to prevent the first belt pulley 17 from rubbing against the inner side wall of the through hole 18 when rotating, the right side surface of the rotating shaft 1 is fixedly connected with a first connecting rod 8, one end of the first connecting rod 8, far away from the rotating shaft 1, is fixedly hinged with a second connecting rod 7 through a second pin shaft 9, one end of the second connecting rod 7, far away from the second, one end, far away from the third pin shaft 19, of the third connecting rod 21 is fixedly embedded with a threaded pipe 20 matched with the threaded rod 6, the threaded pipe 20 is in threaded connection with the threaded rod 6, and the horizontal plane where the threaded rod 6 is located is perpendicular to the vertical plane where the third connecting rod 21 is located, so that the third connecting rod 21 can move in the direction of the threaded rod 6.
The working principle is as follows: first motor 11 and second motor 15 all are linked together with municipal power supply, it rotates to drive axis of rotation 1 under first motor 11's effect, axis of rotation 1 drives horizontal pole 3 and rotates, can adjust the ascending angle of 4 horizontal directions of laser measuring instrument body, it rotates to drive second belt pulley 22 under second motor 15's effect, second belt pulley 22 drives first belt pulley 17 and rotates, thereby drive threaded rod 6 and rotate, it controls about third connecting rod 21 to drive under threaded rod 6 and the 20 threaded connection's of screwed pipe effect, make horizontal pole 3 rotate around first round pin axle 5 under the effect of crank connecting rod, can adjust the measurement angle of the vertical direction of laser measuring instrument body 4.
In summary, the laser measuring instrument support convenient for angle adjustment is characterized in that a first motor 11 is fixedly connected to the bottom surface of a connecting plate 13, the output end of the first motor 11 is fixedly connected with a rotating shaft 1 and can drive the rotating shaft 1 to rotate, a cross rod 3 is fixedly hinged to the top end of the rotating shaft 1, the left side surface of the cross rod 3 is fixedly connected with a laser measuring instrument body 4 and can drive the cross rod 3 and the laser measuring instrument body 4 to rotate, so that the measuring angle of the laser measuring instrument body 4 can be conveniently adjusted, a second motor 15 is fixedly connected to the right side of the upper surface of the cross rod 3, the output end of the second motor 15 is fixedly connected with a second belt pulley 22 and can drive the second belt pulley 22 to rotate, the second belt pulley 22 is in transmission connection with a first belt pulley 17 and can drive the first belt pulley 17 to rotate, and is fixedly connected with a, threaded rod 6 and screwed pipe 20 threaded connection can drive screwed pipe 20 and remove about, through axis of rotation 1 and threaded rod 6 through the fixed articulated crank connecting rod, can make horizontal pole 3 rotate around first round pin axle 5 to can adjust the measurement angle of laser measuring instrument body 4.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a laser measuring instrument support convenient to angle regulation, includes connecting plate (13), its characterized in that: the middle part of the upper surface of the connecting plate (13) is fixedly inlaid with a first bearing (12), the middle part of the bottom surface of the connecting plate (13) is fixedly connected with a first motor (11), the output end of the first motor (11) is fixedly connected with a rotating shaft (1), one end of the rotating shaft (1), far away from the first motor (11), penetrates through the first bearing (12) and extends to the upper part of the connecting plate (13), the inner ring of the first bearing (12) is fixedly connected with the outer surface of the rotating shaft (1), one end of the rotating shaft (1), far away from the first motor (11), is fixedly hinged with a cross rod (3) through a first pin shaft (5), the left side surface of the cross rod (3) is fixedly connected with a laser measuring instrument body (4), the right side of the upper surface of the cross rod (3) is provided with a through hole (18), the left side wall of the through hole (18, the inner ring of the second bearing (2) is fixedly connected with a threaded rod (6), the right side wall of the through hole (18) is fixedly embedded with a third bearing (16), the outer surface of one end of the threaded rod (6) far away from the second bearing (2) is fixedly connected with the inner ring of the third bearing (16), a first connecting rod (8) is fixedly connected to the right side surface of the rotating shaft (1), a second connecting rod (7) is fixedly hinged to one end, far away from the rotating shaft (1), of the first connecting rod (8) through a second pin shaft (9), one end of the second connecting rod (7) far away from the second pin shaft (9) is fixedly hinged with a third connecting rod (21) through a third pin shaft (19), one end, far away from the third pin shaft (19), of the third connecting rod (21) is fixedly embedded with a threaded pipe (20) matched with the threaded rod (6), and the threaded pipe (20) is in threaded connection with the threaded rod (6).
2. The laser gauge stand facilitating angle adjustment of claim 1, wherein: four corners of the bottom surface of the connecting plate (13) are fixedly connected with supporting legs (10), and each supporting leg (10) is inclined.
3. The laser gauge stand facilitating angle adjustment of claim 1, wherein: the right side fixedly connected with second motor (15) of horizontal pole (3) upper surface, the surface fixed connection of threaded rod (6) right-hand member has first belt pulley (17).
4. A laser gauge stand to facilitate angle adjustment according to claim 3, wherein: the output end of the second motor (15) is fixedly connected with a second belt pulley (22), and the second belt pulley (22) is in transmission connection with the first belt pulley (17) through a belt (14).
5. The laser gauge stand facilitating angle adjustment of claim 4, wherein: the second belt pulley (22) is located right above the first belt pulley (17), and a gap is reserved between the right side face of the first belt pulley (17) and the inner side wall of the through hole (18).
6. The laser gauge stand facilitating angle adjustment of claim 1, wherein: the vertical surface of the rotating shaft (1) is perpendicular to the horizontal surface of the connecting plate (13), and the horizontal surface of the threaded rod (6) is perpendicular to the vertical surface of the third connecting rod (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010629093.XA CN111720701A (en) | 2020-07-03 | 2020-07-03 | Laser measuring instrument support convenient to angle regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010629093.XA CN111720701A (en) | 2020-07-03 | 2020-07-03 | Laser measuring instrument support convenient to angle regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111720701A true CN111720701A (en) | 2020-09-29 |
Family
ID=72571421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010629093.XA Withdrawn CN111720701A (en) | 2020-07-03 | 2020-07-03 | Laser measuring instrument support convenient to angle regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111720701A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6655645B1 (en) * | 2002-12-31 | 2003-12-02 | Shin Zu Shing Co., Ltd. | Automatically adjusting support for an LCD monitor |
| JP4933670B1 (en) * | 2011-06-21 | 2012-05-16 | 清 野口 | A device for leveling the camera platform using a camera tripod |
| CN206988914U (en) * | 2017-07-17 | 2018-02-09 | 福州以恒电子技术有限公司 | A kind of student LED desk lamp of adjustable-angle |
| CN108937161A (en) * | 2018-08-07 | 2018-12-07 | 东莞市联洲知识产权运营管理有限公司 | A kind of intelligent desk of adjustable angle |
| CN209881800U (en) * | 2019-05-10 | 2019-12-31 | 广州市聚乐音响设备有限公司 | Digital IP sound console with automatic angle regulation function |
| CN110675662A (en) * | 2019-10-15 | 2020-01-10 | 许昌学院 | Digital media teaching presentation device |
| CN210240953U (en) * | 2019-01-03 | 2020-04-03 | 江西环润信息科技有限公司 | Air conditioner controller infrared remote control probe adopting omni-directional steering support |
| CN210440824U (en) * | 2019-06-07 | 2020-05-01 | 深圳市舒尼光电科技有限公司 | Signal transmitting device for optical fiber communication |
-
2020
- 2020-07-03 CN CN202010629093.XA patent/CN111720701A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6655645B1 (en) * | 2002-12-31 | 2003-12-02 | Shin Zu Shing Co., Ltd. | Automatically adjusting support for an LCD monitor |
| JP4933670B1 (en) * | 2011-06-21 | 2012-05-16 | 清 野口 | A device for leveling the camera platform using a camera tripod |
| CN206988914U (en) * | 2017-07-17 | 2018-02-09 | 福州以恒电子技术有限公司 | A kind of student LED desk lamp of adjustable-angle |
| CN108937161A (en) * | 2018-08-07 | 2018-12-07 | 东莞市联洲知识产权运营管理有限公司 | A kind of intelligent desk of adjustable angle |
| CN210240953U (en) * | 2019-01-03 | 2020-04-03 | 江西环润信息科技有限公司 | Air conditioner controller infrared remote control probe adopting omni-directional steering support |
| CN209881800U (en) * | 2019-05-10 | 2019-12-31 | 广州市聚乐音响设备有限公司 | Digital IP sound console with automatic angle regulation function |
| CN210440824U (en) * | 2019-06-07 | 2020-05-01 | 深圳市舒尼光电科技有限公司 | Signal transmitting device for optical fiber communication |
| CN110675662A (en) * | 2019-10-15 | 2020-01-10 | 许昌学院 | Digital media teaching presentation device |
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| PB01 | Publication | ||
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Application publication date: 20200929 |