CN111963851A - Multimedia teaching projecting apparatus installation adjusting device - Google Patents
Multimedia teaching projecting apparatus installation adjusting device Download PDFInfo
- Publication number
- CN111963851A CN111963851A CN202010743000.6A CN202010743000A CN111963851A CN 111963851 A CN111963851 A CN 111963851A CN 202010743000 A CN202010743000 A CN 202010743000A CN 111963851 A CN111963851 A CN 111963851A
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- China
- Prior art keywords
- limiting
- fixedly connected
- gasbag
- side wall
- supporting column
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- 238000009434 installation Methods 0.000 title claims abstract description 28
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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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
- F16M11/02—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
- F16M11/041—Allowing quick release of the apparatus
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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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a multimedia teaching projector installation adjusting device which comprises a base, wherein a rotating groove is formed in the top of the base, a supporting column is rotatably connected inside the rotating groove, the top of the supporting column is rotatably connected with a rotating platform, the top of the rotating platform is connected with a projector body through an installation mechanism, a sliding mechanism is arranged on one side wall of the supporting column and connected with the rotating platform through a connecting mechanism, a first limiting mechanism is connected to the bottom of the rotating platform, a second limiting mechanism is arranged on the outer side wall of the supporting column, the sliding mechanism comprises an installation groove formed in one side wall of the supporting column, and a sliding rod is fixedly connected inside the installation groove. According to the invention, the clamping plate, the fixed block, the limiting groove, the movable opening, the air bag box, the air bag plate, the air bag rod, the pull frame, the third reset spring and the air bag are matched for use, so that the projector body is quickly mounted and dismounted, and the practicability of the device is improved.
Description
Technical Field
The invention relates to the technical field of projector installation, in particular to a multimedia teaching projector installation adjusting device.
Background
With the advance of multimedia technology, multimedia devices, such as projectors, are increasingly used in modern classroom teaching, where projection is a device that implements images through optical technology, and projectors are also called projectors that project or reflect images or videos onto a screen through digital light processing technology or LCD liquid crystal imaging technology, and can be played by accessing corresponding images and video signals through different signal sources, such as computers, mobile phones, DVDs, and DVs.
The projecting apparatus in the present multimedia teaching room is fixed on the ceiling completely, and inconvenient installation is dismantled, and the angle of projection can't be adjusted simultaneously and certain inconvenience has been brought for the user, consequently needs a multimedia teaching projecting apparatus installation adjusting device to solve the problem urgently.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a multimedia teaching projector installation adjusting device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a multimedia teaching projecting apparatus installation adjusting device, includes the base, the rotation groove has been seted up at the base top, it is connected with the support column to rotate the rotation of inslot portion, the support column top is rotated and is connected with the rotation platform, it is connected with the projecting apparatus body through installation mechanism to rotate the bench top portion, one side lateral wall of support column is equipped with slide mechanism, slide mechanism passes through coupling mechanism and is connected with the rotation platform, it is connected with first stop gear to rotate the bench bottom, the support column lateral wall is equipped with second stop gear.
Preferably, slide mechanism is including seting up the mounting groove at support column one side lateral wall, the inside fixedly connected with slide bar of mounting groove, the slider has been cup jointed in the slide bar lateral wall slip, the first reset spring of fixedly connected with between slider bottom and the mounting groove bottom, first reset spring overlaps and establishes at the slide bar lateral wall.
Preferably, coupling mechanism includes fixed block of fixed connection in rotating platform bottom one side, it is connected with the connecting rod to rotate on the fixed block, the one end that the fixed block was kept away from to the connecting rod rotates with the slider and is connected.
Preferably, first stop gear includes the fixed cover of fixed connection at the base top, one side rotation that the fixed block was kept away from to the bottom of revolving stage is connected with first gag lever post, a plurality of first spacing mouths have been seted up to one side lateral wall that first gag lever post is close to the fixed block, peg graft inside fixed cover first gag lever post bottom, fixed cover runs through the socket of seting up with first spacing mouth looks adaptation on one side lateral wall top that is close to the support column, the socket is pegged graft with corresponding first spacing mouthful is inside to have same inserted bar.
Preferably, second stop gear is including the fixed spacing dish that cup joints at the support column lateral wall and be located the mounting groove below, spacing dish upper surface uses the support column to run through around the equidistance as the centre of a circle and has seted up the spacing mouth of a plurality of seconds, the base top just is located the support column both sides and sets up the spring groove of two symmetries, two the equal fixedly connected with second reset spring in spring inslot bottom, two the equal fixedly connected with second gag lever post in second reset spring top, two the second gag lever post runs through and two corresponding second spacing mouths of sliding connection.
Preferably, the mounting mechanism comprises two mounting blocks which are symmetrically and fixedly connected to the bottom end of the outer side wall of the projector body, the bottoms of the two mounting blocks are both contacted with the top of the rotating table, two clamping plates which are arranged in an L shape are symmetrically and fixedly connected to the two sides of the top of the rotating table, the two mounting blocks are respectively positioned in the two clamping plates, two limiting grooves are symmetrically formed in the tops of the two mounting blocks, two moving openings are symmetrically and penetratingly formed in the two horizontal parts of the clamping plates corresponding to the two limiting grooves, air bags are commonly arranged in the corresponding moving openings and the limiting grooves, two air bag boxes are symmetrically and fixedly connected to the tops of the two clamping plates corresponding to the two moving openings, two air bag plates are symmetrically and slidably connected to the insides of the two air bag boxes, two air bag rods are symmetrically and fixedly connected to the tops of the two air bag plates, the top ends of, two gasbag bottom of the case portion is linked together with two gasbags respectively, two cardboard top and lie in two outside symmetries of gasbag case and be equipped with two and be the frame that draws of the setting of type of falling U, two draw the frame interior top respectively with two gasbag pole top end fixed connection, draw the frame interior top and correspond between the cardboard top equal symmetry fixedly connected with two sets of third reset springs.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the clamping plate, the fixed block, the limiting groove, the movable opening, the air bag box, the air bag plate, the air bag rod, the pull frame, the third reset spring and the air bag are matched for use, so that the projector body is quickly mounted and dismounted, and the practicability of the device is improved.
2. According to the invention, the mounting groove, the sliding rod, the sliding block, the first return spring, the connecting rod, the first limiting mechanism and the second limiting mechanism are used in a matched manner, so that the adjustment of the projection angle of the projector body is realized, and the application range of the device is improved.
Drawings
Fig. 1 is a schematic front sectional view of an installation and adjustment device of a multimedia teaching projector according to the present invention;
fig. 2 is an enlarged view of a position a of the installation adjustment device of the multimedia teaching projector according to the present invention;
fig. 3 is a schematic structural diagram of a limiting disc and a second limiting opening in an installation and adjustment device of a multimedia teaching projector according to the present invention.
In the figure: the projector comprises a base, a supporting column 2, a rotating table 3, a projector body 4, an installation block 5, a clamping plate 6, a limiting groove 7, a movable opening 8, an air bag box 9, an air bag plate 10, an air bag rod 11, a pull frame 12, a third reset spring 13, an air bag 14, an installation groove 15, a sliding rod 16, a sliding block 17, a first reset spring 18, a connecting rod 19, a first limiting rod 20, a first limiting opening 21, a fixed sleeve 22, an inserted rod 23, a limiting disc 24, a spring groove 25, a second reset spring 26, a second limiting rod 27, a second limiting opening 28, a rotating groove 29, a fixed block 30 and a socket 31.
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.
Referring to fig. 1-3, a multimedia teaching projector installation adjusting device comprises a base 1, wherein a rotating groove 29 is formed in the top of the base 1, a supporting column 2 is rotatably connected inside the rotating groove 29, a rotating table 3 is rotatably connected to the top of the supporting column 2, and the top of the rotating table 3 is connected with a projector body 4 through an installation mechanism;
the mounting mechanism comprises two mounting blocks 5 which are symmetrically and fixedly connected to the bottom end of the outer side wall of the projector body 4, the bottoms of the two mounting blocks 5 are both contacted with the top of the rotating table 3, two L-shaped clamping plates 6 are symmetrically and fixedly connected to two sides of the top of the rotating table 3, and the two mounting blocks 5 are respectively positioned inside the two clamping plates 6;
the top parts of the two mounting blocks 5 are symmetrically provided with two limiting grooves 7, the positions of the horizontal parts of the two clamping plates 6 corresponding to the two limiting grooves 7 are symmetrically penetrated and provided with two movable openings 8, the corresponding movable openings 8 and the limiting grooves 7 are both provided with air bags 14, the positions of the top parts of the two clamping plates 6 corresponding to the two movable openings 8 are symmetrically and fixedly connected with two air bag boxes 9, the inner parts of the two air bag boxes 9 are symmetrically and slidably connected with two air bag plates 10, the top parts of the two air bag plates 10 are symmetrically and fixedly connected with two air bag rods 11, the top ends of the two air bag rods 11 respectively penetrate through the top parts of the two air bag boxes 9 and extend to the outer parts of the two air bag boxes 9, the bottom parts of the two air bag boxes 9 are respectively communicated with the two air bags 14, the top parts of the two clamping plates 6, which are positioned outside the two air bag, two groups of third reset springs 13 are symmetrically and fixedly connected between the inner top of the pull frame 12 and the top of the corresponding clamping plate 6, and the bottom of the pull frame 12 is abutted against the top of the clamping plate 6 under the condition of no external force through the arrangement of the third reset springs 13, so that the air bag 14 is always ensured to be in an expansion state, and the limitation on the mounting block 5 is realized;
a sliding mechanism is arranged on the side wall of one side of the supporting column 2, the sliding mechanism comprises a mounting groove 15 formed in the side wall of one side of the supporting column 2, a sliding rod 16 is fixedly connected inside the mounting groove 15, a sliding block 17 is sleeved on the outer side wall of the sliding rod 16 in a sliding mode, a first reset spring 18 is fixedly connected between the bottom of the sliding block 17 and the bottom inside the mounting groove 15, the first reset spring 18 is sleeved on the outer side wall of the sliding rod 16, and the sliding block 17 is quickly reset through the first reset spring 18;
the sliding mechanism is connected with the rotating table 3 through a connecting mechanism, the connecting mechanism comprises a fixed block 30 fixedly connected to one side of the bottom of the rotating table 3, a connecting rod 19 is rotatably connected to the fixed block 30, and one end, far away from the fixed block 30, of the connecting rod 19 is rotatably connected with the sliding block 17;
the bottom of the rotating table 3 is connected with a first limiting mechanism, the first limiting mechanism comprises a fixed sleeve 22 fixedly connected to the top of the base 1, one side, far away from the fixed block 30, of the bottom of the rotating table 3 is rotatably connected with a first limiting rod 20, one side wall, close to the fixed block 30, of the first limiting rod 20 is provided with a plurality of first limiting ports 21, the bottom end of the first limiting rod 20 is inserted into the fixed sleeve 22, the top end of one side wall, close to the support column 2, of the fixed sleeve 22 is provided with a socket 31 matched with the first limiting ports 21 in a penetrating mode, the socket 31 and the corresponding first limiting ports 21 are internally inserted with the same inserted rod 23 in a inserting mode, after the projection angle is adjusted, the first limiting rod 20 can slide in the fixed sleeve 22, and the inserted rod 23 is inserted into the corresponding first limiting ports 21 and the socket 31 to fix the;
the outer side wall of the supporting column 2 is provided with a second limiting mechanism, the second limiting mechanism comprises a limiting disc 24 fixedly sleeved on the outer side wall of the supporting column 2 and positioned below the mounting groove 15, the upper surface of the limiting disc 24 is provided with a plurality of second limiting ports 28 around the supporting column 2 as a circle center in an equidistant penetrating manner, the top of the base 1 is provided with two symmetrical spring grooves 25 positioned at two sides of the supporting column 2, the bottoms of the two spring grooves 25 are fixedly connected with second reset springs 26, the top ends of the two second reset springs 26 are fixedly connected with second limiting rods 27, the two second limiting rods 27 penetrate and are connected with the corresponding two second limiting ports 28 in a sliding manner, when the two second limiting rods 27 are loosened after the support column 2 is rotated, the two second return springs 26 push the two second limiting rods 27 upward, thereby, the two second limiting rods 27 are inserted into the two corresponding second limiting openings 28, and the support column 2 is prevented from being unstable and continuing to rotate.
The specific working principle of the invention is as follows:
in the initial state, the sliding block 17 slides up and down, the sliding block 17 moves up and down, the connecting rod 19 drives the rotating platform 3 to deflect, the rotating platform 3 drives the first limiting rod 20 to slide in the fixed sleeve 22, the inserting rod 23 is inserted into the corresponding first limiting opening 21 and the inserting opening 31 after the adjustment is completed, the angle fixation of the rotating platform 3 can be realized, then the two second limiting rods 27 are pressed downwards to be separated from the corresponding second limiting openings 28, and then the supporting column 2 is rotated to drive the rotating platform 3 to rotate, and then the projector body 4 can be driven to rotate, when the support post 2 rotates well, the two second limiting rods 27 are loosened, the two second return springs 26 push the two second limiting rods 27 upwards, so that the two second limiting rods 27 are inserted into the two corresponding second limiting openings 28, thereby preventing the support column 2 from rotating unstably and further realizing the adjustment of the projection angle;
after the projection, pull frame 12 with two hands pulling, two pull frame 12 rebound can drive two gasbag poles 11 rebound, and then drive two gasbag boards 10 rebound, two gasbag boards 10 rebound can extract the inside gas of two gasbags 14, and then make two gasbags 14 shrivelled, two gasbags 14 shrink will break away from two spacing grooves 7, and then make two installation pieces 5 lose the restriction of horizontal direction, can take out two installation pieces 5 from two cardboard 6, thereby realize the dismantlement of projecting apparatus body 4.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a multimedia teaching projecting apparatus installation adjusting device, includes base (1), its characterized in that, rotation groove (29) have been seted up at base (1) top, it is connected with support column (2) to rotate groove (29) internal rotation, support column (2) top is rotated and is connected with and is rotated platform (3), it is connected with projecting apparatus body (4) through installation mechanism to rotate platform (3) top, one side lateral wall of support column (2) is equipped with slide mechanism, slide mechanism passes through coupling mechanism and is connected with and rotates platform (3), it is connected with first stop gear to rotate platform (3) bottom, support column (2) lateral wall is equipped with second stop gear.
2. The multimedia teaching projector installation adjusting device according to claim 1, wherein the sliding mechanism comprises an installation groove (15) formed in a side wall of the support column (2), a sliding rod (16) is fixedly connected inside the installation groove (15), a sliding block (17) is slidably sleeved on an outer side wall of the sliding rod (16), a first return spring (18) is fixedly connected between the bottom of the sliding block (17) and the inner bottom of the installation groove (15), and the first return spring (18) is sleeved on an outer side wall of the sliding rod (16).
3. The mounting and adjusting device for the multimedia teaching projector as claimed in claim 2, wherein the connecting mechanism comprises a fixed block (30) fixedly connected to one side of the bottom of the rotating table (3), a connecting rod (19) is rotatably connected to the fixed block (30), and one end of the connecting rod (19) far away from the fixed block (30) is rotatably connected to the sliding block (17).
4. The mounting and adjusting device for the multimedia teaching projector according to claim 3, wherein the first limiting mechanism comprises a fixing sleeve (22) fixedly connected to the top of the base (1), one side of the bottom of the rotating table (3) far away from the fixing block (30) is rotatably connected with a first limiting rod (20), a plurality of first limiting ports (21) are formed in the side wall of the first limiting rod (20) close to the fixing block (30), the bottom end of the first limiting rod (20) is inserted into the fixing sleeve (22), a socket (31) matched with the first limiting port (21) is formed in the top end of the side wall of the fixing sleeve (22) close to the supporting column (2) in a penetrating manner, and the same inserting rod (23) is inserted into the socket (31) and the corresponding first limiting port (21).
5. The mounting and adjusting device for the multimedia teaching projector according to claim 2, wherein the second limiting mechanism comprises a limiting disc (24) fixedly sleeved on the outer side wall of the supporting column (2) and located below the mounting groove (15), the upper surface of the limiting disc (24) is provided with a plurality of second limiting ports (28) around the supporting column (2) as a circle center and penetrating around the supporting column at equal intervals, the top of the base (1) is provided with two symmetrical spring grooves (25) located on two sides of the supporting column (2), the bottoms of the two spring grooves (25) are fixedly connected with second reset springs (26), the top ends of the two second reset springs (26) are fixedly connected with second limiting rods (27), and the two second limiting rods (27) penetrate through and are slidably connected with the two corresponding second limiting ports (28).
6. The mounting and adjusting device for the multimedia teaching projector according to claim 1, wherein the mounting mechanism comprises two mounting blocks (5) symmetrically and fixedly connected to the bottom end of the outer side wall of the projector body (4), the bottoms of the two mounting blocks (5) are both contacted with the top of the rotating table (3), two clamping plates (6) arranged in an L shape are symmetrically and fixedly connected to the top of the rotating table (3), the two mounting blocks (5) are respectively located inside the two clamping plates (6), two limiting grooves (7) are symmetrically formed in the tops of the two mounting blocks (5), two movable openings (8) are symmetrically formed in the positions of the horizontal portions of the two clamping plates (6) corresponding to the two limiting grooves (7), air bags (14) are commonly arranged inside the corresponding movable openings (8) and the limiting grooves (7), and two air bags are fixedly connected to the positions of the tops of the two clamping plates (6) corresponding to the two movable openings (8) in a symmetrical manner Bag case (9), two the inside symmetry sliding connection of gasbag case (9) has two gasbag boards (10), two gasbag board (10) top symmetry fixedly connected with two gasbag poles (11), two gasbag pole (11) top runs through two gasbag case (9) tops respectively and extends to two gasbag case (9) outsides, two gasbag case (9) bottom is linked together with two gasbag (14) respectively, two cardboard (6) top just is located two gasbag case (9) outside symmetries and is equipped with two and draws frame (12) that are the setting of type of falling U, two draw frame (12) interior top respectively with two gasbag pole (11) top fixed connection, draw two sets of third reset spring (13) of equal symmetry fixedly connected with between frame (12) interior top and cardboard (6) top that correspond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743000.6A CN111963851A (en) | 2020-07-29 | 2020-07-29 | Multimedia teaching projecting apparatus installation adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010743000.6A CN111963851A (en) | 2020-07-29 | 2020-07-29 | Multimedia teaching projecting apparatus installation adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN111963851A true CN111963851A (en) | 2020-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010743000.6A Pending CN111963851A (en) | 2020-07-29 | 2020-07-29 | Multimedia teaching projecting apparatus installation adjusting device |
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| CN (1) | CN111963851A (en) |
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|---|---|---|---|---|
| US6042068A (en) * | 1997-09-04 | 2000-03-28 | Peerless Indsutries, Inc. | Low profile LCD projector mount |
| JP2005180555A (en) * | 2003-12-18 | 2005-07-07 | Sharp Corp | Position adjusting mechanism |
| CN108513195A (en) * | 2018-06-26 | 2018-09-07 | 佛山奎丰商务咨询服务有限公司 | A kind of Bluetooth microphone |
| CN208170067U (en) * | 2017-09-30 | 2018-11-30 | 深圳市合生照明有限公司 | The bulkhead lamp of adjustable mounting bracket angle |
| CN110925570A (en) * | 2019-11-27 | 2020-03-27 | 西安世锐软件有限责任公司 | Adjustable projection equipment for information technology research and using method |
| CN210640830U (en) * | 2019-10-14 | 2020-05-29 | 青海黄河新能源维检有限公司 | Solar photovoltaic board fixed knot constructs |
| CN210771123U (en) * | 2019-10-11 | 2020-06-16 | 青海黄河矿业有限责任公司 | Spectrum projector |
-
2020
- 2020-07-29 CN CN202010743000.6A patent/CN111963851A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6042068A (en) * | 1997-09-04 | 2000-03-28 | Peerless Indsutries, Inc. | Low profile LCD projector mount |
| JP2005180555A (en) * | 2003-12-18 | 2005-07-07 | Sharp Corp | Position adjusting mechanism |
| CN208170067U (en) * | 2017-09-30 | 2018-11-30 | 深圳市合生照明有限公司 | The bulkhead lamp of adjustable mounting bracket angle |
| CN108513195A (en) * | 2018-06-26 | 2018-09-07 | 佛山奎丰商务咨询服务有限公司 | A kind of Bluetooth microphone |
| CN210771123U (en) * | 2019-10-11 | 2020-06-16 | 青海黄河矿业有限责任公司 | Spectrum projector |
| CN210640830U (en) * | 2019-10-14 | 2020-05-29 | 青海黄河新能源维检有限公司 | Solar photovoltaic board fixed knot constructs |
| CN110925570A (en) * | 2019-11-27 | 2020-03-27 | 西安世锐软件有限责任公司 | Adjustable projection equipment for information technology research and using method |
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Application publication date: 20201120 |