CN111713857B - Podium for ideological and political education with multi-angle projection function - Google Patents
Podium for ideological and political education with multi-angle projection function Download PDFInfo
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- CN111713857B CN111713857B CN202010654717.3A CN202010654717A CN111713857B CN 111713857 B CN111713857 B CN 111713857B CN 202010654717 A CN202010654717 A CN 202010654717A CN 111713857 B CN111713857 B CN 111713857B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B19/00—Reading-desks; Lecterns; Pulpits, i.e. free-standing
- A47B19/10—Reading-desks; Lecterns; Pulpits, i.e. free-standing characterised by association with auxiliary devices, e.g. paper clamps, line indicators
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4063—Driving means; Transmission means therefor
- A47L11/4069—Driving or transmission means for the cleaning tools
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Drawing Aids And Blackboards (AREA)
- Projection Apparatus (AREA)
Abstract
The invention relates to a platform, in particular to a platform with a multi-angle projection function for ideological and political education. The invention aims to solve the technical problem of how to design a podium for ideological and political education, which can use a projection function and has a multi-angle projection function during operation. In order to solve the above technical problems, the present invention provides a podium for ideological and political education with a multi-angle projection function, comprising: the middle of the top of the table body is hinged with a cover plate; a chassis connected to the cover plate; the projector is arranged on the chassis and is detachably arranged; the placing mechanism is arranged on the table body; and the adjusting mechanism is arranged on the placing mechanism. The projector is used by the matching operation of the placing mechanism and the adjusting mechanism, and the angle of the projector is adjusted, so that the effect of projection is achieved.
Description
Technical Field
The invention relates to a platform, in particular to a platform with a multi-angle projection function for ideological and political education.
Background
The platform refers to a platform which is higher than the ground, and a person who gives a lecture or a lecture stands on the platform and is also a proper noun of a teacher.
Through retrieval, the patent of granted patent publication No. CN207754799U discloses a multi-functional podium of tensile formula, belongs to teaching aid technical field. The stretching type multifunctional platform comprises a platform cabinet body, wherein a folding part is hinged to the upper surface of the platform cabinet body, the upper surface of the folding part is hinged to the upper surface of the platform, and the platform cabinet body is formed by connecting a left plate, a rear plate, a right plate and a front plate frame in an end-to-end manner; the folding part comprises folding plates which are connected in a folding way through hinges, and the rear plate and the front plate frame are both movably connected with two folding plates; the front plate frame is connected with a side door through a hinge; the inner walls of the left plate and the right plate are vertically provided with slots, a supporting plate for supporting the folding plate in a stretching state is movably embedded in the slots, and the inner wall of the folding plate is provided with slots corresponding to the supporting plate; and the upper surface of the platform is provided with a real object projector and a desk lamp, and the real object projector and the desk lamp are electrically connected with a power supply. The above patents suffer from the following disadvantages: above-mentioned podium can not use the projection function, still needs the manual work to place the projecting apparatus when using the projection function, and is comparatively troublesome during the operation, can not satisfy people's demand.
Therefore, there is a need to develop a platform for ideological and political education that can use a projection function and has a multi-angle projection function.
Disclosure of Invention
(1) Technical problem to be solved
The invention aims to overcome the defects that the platform cannot use a projection function, and a projector is required to be manually placed when the projection function is used, so that the operation is troublesome.
(2) Technical scheme
In order to solve the technical problem, the invention provides the podium for ideological and political education with the multi-angle projection function, which comprises a table body, wherein the middle of the top of the table body is hinged with a cover plate; a chassis connected to the cover plate; the projector is arranged on the chassis and is detachably arranged; the placing mechanism is arranged on the table body; and the adjusting mechanism is arranged on the placing mechanism.
Preferably, the placing mechanism comprises a sliding frame which is connected to the top in the table body, and a placing plate is connected to the sliding frame in a sliding manner; the extrusion rod is connected to the bottom of the placing plate in a sliding mode, a pull ring is connected to the extrusion rod, and a pressure spring is connected between the extrusion rod and the placing plate; the two connecting rods are arranged and are respectively connected to two sides of the bottom of the placing plate in a sliding mode, one sides, far away from each other, of the two connecting rods are connected with first wedge-shaped blocks, and one sides, close to each other, of the two connecting rods are connected with second wedge-shaped blocks; the pull rope is connected between the two second wedge-shaped blocks and has certain elasticity; the reset spring, it is connected on placing the board, and reset spring can contact with the table body.
Preferably, the adjusting mechanism comprises a sliding sleeve which is connected to the top of the placing plate, and the sliding sleeve is connected with the inclined plane frame in a sliding manner; the U-shaped rod is connected to one side, close to the sliding sleeve, of the placing plate in a sliding mode and is respectively matched with the chassis and the inclined plane frame; and the screw rod is rotatably connected to the sliding sleeve and is in threaded fit with the inclined plane frame.
Preferably, the table further comprises a cleaning mechanism, the cleaning mechanism comprises two sliding rods, the two sliding rods are respectively connected to two sides of the bottom of the table body, the sliding rods are connected with cross rods in a sliding mode, and the cross rods are in sliding fit with the table body; the brush roller is connected between the tops of the cross rods on the two sides; the two tension springs are arranged and respectively connected between the two cross rods and the two slide rods; the two conical blocks are arranged and respectively connected to the two cross rods in a sliding manner, the conical blocks are matched with the first wedge-shaped blocks, and elastic pieces are connected between the conical blocks and the cross rods; and two guide rods are arranged and are respectively connected to two sides of the sliding frame and are matched with the conical block.
Preferably, the device also comprises a buffer spring which is connected to the bottom of the chassis, and a circular plate is connected to the bottom of the buffer spring.
(3) Advantageous effects
1. The projector is used by the matching operation of the placing mechanism and the adjusting mechanism, and the angle of the projector is adjusted, so that the effect of projection is achieved.
2. The invention cleans the sundries such as dust and the like on the platform through the cleaning mechanism, thereby achieving the effect of cleaning the sundries on the platform.
3. The invention only needs to operate the placing mechanism and the adjusting mechanism during operation, has simple operation and projection function, and effectively solves the technical problems in the patents.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a partial perspective view of a first embodiment of the present invention.
Fig. 3 is a second partial perspective view of the present invention.
Fig. 4 is a third partial perspective view of the present invention.
The labels in the figures are: 1-table body, 2-cover plate, 3-projector, 4-chassis, 5-placing mechanism, 51-sliding frame, 52-placing plate, 53-extrusion rod, 54-pull ring, 55-pressure spring, 56-connecting rod, 57-first wedge block, 58-second wedge block, 59-reset spring, 50-pull rope, 6-adjusting mechanism, 61-sliding sleeve, 62-inclined plane frame, 63-U-shaped rod, 64-screw rod, 7-cleaning mechanism, 71-sliding rod, 72-cross rod, 73-brush roll, 74-tension spring, 75-conical block, 76-elastic piece, 77-guide rod, 8-buffer spring and 9-circular plate.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1
The utility model provides a podium for ideological and political education with multi-angle projection function, as shown in fig. 1-3, including the table body 1, apron 2, projecting apparatus 3 and chassis 4, the articulated apron 2 that is connected with in the middle of the 1 top of the table body, be connected with chassis 4 on the apron 2, install projecting apparatus 3 on the chassis 4, projecting apparatus 3 is for dismantling the setting, still including placing mechanism 5 and adjustment mechanism 6, is equipped with placing mechanism 5 on the table body 1, is equipped with adjustment mechanism 6 on placing mechanism 5.
The placing mechanism 5 comprises a sliding frame 51, a placing plate 52, a pressing rod 53, a pull ring 54, a pressure spring 55, a connecting rod 56, a first wedge block 57, a pull rope 50, a second wedge block 58 and a return spring 59, top is connected with carriage 51 in the table body 1, sliding connection has places board 52 on carriage 51, place board 52 bottom sliding connection and have squeeze stem 53, be connected with pull ring 54 on the squeeze stem 53, squeeze stem 53 and place and be connected with pressure spring 55 between the board 52, place the equal sliding connection in both sides around the board 52 bottom and have connecting rod 56, one side that both sides connecting rod 56 kept away from each other all is connected with first wedge 57, one side that both sides connecting rod 56 is close to each other all is connected with second wedge 58, be connected with stay cord 50 between two second wedges 58, stay cord 50 has certain elasticity, both sides all are connected with reset spring 59 around placing board 52, reset spring 59 can contact with table body 1.
The adjusting mechanism 6 comprises a sliding sleeve 61, an inclined plane frame 62, a U-shaped rod 63 and a screw 64, the top of the placing plate 52 is connected with the sliding sleeve 61, the sliding sleeve 61 is internally and slidably connected with the inclined plane frame 62, the right side of the placing plate 52 is slidably connected with the U-shaped rod 63, the U-shaped rod 63 is respectively matched with the chassis 4 and the inclined plane frame 62, the sliding sleeve 61 is rotatably connected with the screw 64, and the screw 64 is in threaded fit with the inclined plane frame 62.
When the platform is required to be used, the platform can be used, initially, the pull rope 50 is in a stretching state, when a projection function is required, the pull ring 54 can be pulled to move leftwards, the pressure spring 55 is stretched, the pull ring 54 moves leftwards to drive the extrusion rod 53 to move leftwards, when the extrusion rod 53 moves to be no longer in contact with the second wedge blocks 58 on the two sides, the second wedge blocks 58 on the two sides are close to each other under the action of the pull rope 50, the second wedge blocks 58 on the two sides are close to each other to drive all devices on the extrusion rod to be close to each other, after the convex part of the extrusion rod 53 moves to be in contact with the placing plate 52, the extrusion rod 53 continues to move to drive the placing plate 52 to move together, the placing plate 52 moves leftwards to drive all devices on the placing plate to move leftwards together, the U-shaped rod 63 moves to be below the chassis 4 after moving leftwards, and after the return spring 59 moves to be in contact with the platform 1, the placing plate 52 continues to move to enable the return spring 59 to be compressed, after the first wedges 57 on the two sides move to contact with the table body 1, the first wedges 57 on the two sides continuously move to approach each other through the table body 1, the first wedges 57 on the two sides approach each other and drive the second wedges 58 on the two sides to approach each other through the connecting rods 56 on the two sides, when the first wedges 57 on the two sides move to be no longer in contact with the table body 1, the placing plate 52 is fixed manually, then the pull ring 54 is released, at this time, the pull ring 54 moves rightwards under the action of the pressure spring 55, the pull ring 54 moves rightwards to drive the extrusion rod 53 to move rightwards, the extrusion rod 53 can push the second wedges 58 on the two sides to be away from each other when moving rightwards, the pull rope 50 is stretched, the second wedges 58 on the two sides are away from each other and drive the first wedges 57 on the two sides to be away from each other through the connecting rods 56 on the two sides, the first wedges 57 on the two sides are away from each other and positioned through the table body 1, so that the placing plate 52 is fixed, and at this time, the U-shaped rod 63 just moves to the lower part of the chassis 4, then, the projection can be used, when the angle of the projection needs to be adjusted, the screw 64 can be twisted to drive the inclined plane frame 62 to reciprocate left and right, the inclined plane frame 62 can reciprocate left and right, the U-shaped rod 63 can be pushed to reciprocate up and down by the inclined plane of the inclined plane frame 62, the U-shaped rod 63 can be pushed to reciprocate up and down by the U-shaped rod, the chassis 4 and the cover plate 2 can drive the projector 3 to swing together when swinging, so as to adjust the projection angle of the projector 3, after the projection is finished, the pull ring 54 is pulled to drive the extrusion rod 53 to be not contacted with the second wedge blocks 58 at both sides, when the extrusion rod 53 is not contacted with the second wedge blocks 58 at both sides, the first wedge blocks 57 at both sides are close to each other and are not clamped by the table 1 any more under the action of the pull rope 50, at this time, the placing plate 52 moves towards the table 1 under the action of the return spring 59, after the return spring 59 returns, the placing plate 52 can be pushed to continue to move towards the table 1 for returning, in this way, the projection can be used and the angle of the projection can be adjusted.
Example 2
On the basis of the embodiment 1, as shown in fig. 4, the table further comprises a cleaning mechanism 7, the cleaning mechanism 7 comprises a sliding rod 71, a cross rod 72, a brush roller 73, a tension spring 74, a conical block 75, an elastic member 76 and a guide rod 77, the sliding rod 71 is connected to the front side and the rear side of the bottom of the table body 1, the cross rod 72 is connected with the cross rod 72 in a sliding manner, the cross rod 72 is in sliding fit with the table body 1, the brush roller 73 is connected between the tops of the cross rods 72 at the two sides, the brush roller 73 is in contact with the top of the table body 1, the tension spring 74 is connected between the cross rod 72 and the sliding rod 71, the conical block 75 is connected with the placing plate 52 in a sliding manner, the elastic member 76 is connected between the conical block 75 and the cross rod 72, the guide rod 77 is connected to the front side and the rear side of the sliding frame 51, and the guide rod 77 is matched with the conical block 75.
When the platform is used, chalk dust and the like fall on the table body 1, the placing plate 52 is contacted with the conical block 75 when moving rightwards and resetting, after the placing plate 52 moves to be contacted with the conical block 75, the placing plate 52 continues to move to push the conical block 75 to move rightwards, the conical block 75 moves rightwards to drive the cross rod 72 to move rightwards, the cross rod 72 moves rightwards to drive the tension spring 74 to be stretched, the cross rod 72 moves rightwards to drive the brush roller 73 to move rightwards, the brush roller 73 moves rightwards to sweep away the dust on the platform, after the conical block 75 moves to be contacted with the guide rod 77, the conical blocks 75 on both sides continue to move away from each other through the guide rods 77 on both sides, when the conical blocks 75 on both sides move to be no longer contacted with the placing plate 52, the cross rod 72 resets under the action of the tension spring 74, the cross rod 72 resets to drive all devices thereon to reset together, at the moment, the dust on the platform is cleaned, when the placing plate 52 is pulled again to move leftwards to be contacted with the conical block 75, the placing plate 52 can move continuously, the two side conical blocks 75 can be pushed to be away from each other through the inclined surfaces of the placing plate, the elastic piece 76 is stretched, the two side conical blocks 75 can be away from each other, the placing plate 52 can not be blocked, and therefore the platform can be cleaned.
As shown in fig. 3, the chassis further comprises a buffer spring 8 and a circular plate 9, the buffer spring 8 is connected to the front side and the rear side of the bottom of the chassis 4, and the circular plate 9 is connected to the bottom of the buffer spring 8.
The buffer spring 8 and the circular plate 9 can play a role of buffering when the projector 3 is returned after being used.
The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (3)
1. The utility model provides a podium for ideological and political education with multi-angle projection function which characterized in that, including: the middle of the top of the table body (1) is hinged with a cover plate (2); a base plate (4) connected to the cover plate (2); the projector (3) is arranged on the chassis (4), and the projector (3) is detachably arranged; a placing mechanism (5) arranged on the table body (1); an adjusting mechanism (6) arranged on the placing mechanism (5);
the placing mechanism (5) comprises: a sliding frame (51) connected to the top inside the table body (1), wherein a placing plate (52) is connected to the sliding frame (51) in a sliding manner; the extrusion rod (53) is connected to the bottom of the placing plate (52) in a sliding mode, a pull ring (54) is connected to the extrusion rod (53), and a pressure spring (55) is connected between the extrusion rod (53) and the placing plate (52); the two connecting rods (56) are arranged, the two connecting rods (56) are respectively connected to two sides of the bottom of the placing plate (52) in a sliding mode, one sides, far away from each other, of the two connecting rods (56) are both connected with first wedge blocks (57), and one sides, close to each other, of the two connecting rods (56) are both connected with second wedge blocks (58); the pulling rope (50) is connected between the two second wedge-shaped blocks (58), and the pulling rope (50) has certain elasticity; a return spring (59) connected to the placing plate (52), wherein the return spring (59) can be contacted with the table body (1);
the adjusting mechanism (6) comprises: the sliding sleeve (61) is connected to the top of the placing plate (52), and the inclined plane frame (62) is connected to the sliding sleeve (61) in an inward sliding mode; the U-shaped rod (63) is connected to one side, close to the sliding sleeve (61), of the placing plate (52) in a sliding mode, and the U-shaped rod (63) is matched with the chassis (4) and the inclined plane frame (62) respectively; the screw rod (64) is rotatably connected to the sliding sleeve (61), and the screw rod (64) is in threaded fit with the inclined plane frame (62);
when the platform is required to be used, the platform for ideological and political education with the multi-angle projection function can be used, initially, the pull rope (50) is in a stretching state, when the projection function is required, the pull ring (54) can be pulled to move leftwards, the pressure spring (55) is stretched, the pull ring (54) moves leftwards to drive the extrusion rod (53) to move leftwards, when the extrusion rod (53) moves to be not contacted with the second wedge blocks (58) on the two sides, the second wedge blocks (58) on the two sides are close to each other under the action of the pull rope (50), the second wedge blocks (58) on the two sides are close to each other to drive all devices on the extrusion rod to be close to each other, after the convex part of the extrusion rod (53) moves to be contacted with the placing plate (52), the extrusion rod (53) continues to move to drive the placing plate (52) to move together, the placing plate (52) moves leftwards to drive all devices on the placing plate (52) to move leftwards together, the U-shaped rod (63) moves to the lower part of the chassis (4) after moving leftwards, when the return spring (59) moves to be in contact with the table body (1), the placing plate (52) continues to move to enable the return spring (59) to be compressed, when the first wedge blocks (57) on the two sides move to be in contact with the table body (1), the first wedge blocks (57) on the two sides continue to move to be close to each other through the table body (1), the first wedge blocks (57) on the two sides approach to each other and drive the second wedge blocks (58) on the two sides to approach to each other through the connecting rods (56) on the two sides, when the first wedge blocks (57) on the two sides move to be no longer in contact with the table body (1), the placing plate (52) is fixed manually, then the pull ring (54) is released, the pull ring (54) moves rightwards under the action of the pressure spring (55), the pull ring (54) moves rightwards to drive the extrusion rod (53) to move rightwards, and the extrusion rod (53) can push the second wedge blocks (58) on the two sides to move away from each other when moving rightwards, the pull rope (50) is stretched, the second wedge-shaped blocks (58) at the two sides are mutually far away, the connecting rods (56) at the two sides drive the first wedge-shaped blocks (57) at the two sides to be mutually far away, the first wedge-shaped blocks (57) at the two sides are mutually far away and are positioned through the table body (1), so as to fix the placing plate (52), at the moment, the U-shaped rod (63) is just moved to the lower part of the chassis (4), then the projection can be used, when the angle of the projection needs to be adjusted, the screw rod (64) can be twisted to drive the inclined plane frame (62) to reciprocate left and right, the inclined plane frame (62) can reciprocate left and right by pushing the U-shaped rod (63) to reciprocate up and down through the inclined plane of the inclined plane frame, the U-shaped rod (63) can push the chassis (4) and the cover plate (2) to reciprocate up and down during reciprocating movement, the chassis (4) and the cover plate (2) drive the projector (3) to swing together during swinging, and therefore the projection angle of the projector (3) is adjusted.
2. The podium for ideological and political education with multi-angle projection function of claim 1, characterized in that, still include clean mechanism (7), clean mechanism (7) including: the two sliding rods (71) are arranged, the two sliding rods (71) are respectively connected to two sides of the bottom of the table body (1), the sliding rods (71) are connected with cross rods (72) in a sliding mode, and the cross rods (72) are matched with the table body (1) in a sliding mode; a brush roller (73) connected between the tops of the two side rails (72); the two tension springs (74) are arranged, and the two tension springs (74) are respectively connected between the two cross rods (72) and the two sliding rods (71); the two conical blocks (75) are arranged, the two conical blocks (75) are respectively connected to the two cross rods (72) in a sliding mode, the conical blocks (75) are matched with the first wedge-shaped block (57), and an elastic piece (76) is connected between each conical block (75) and each cross rod (72); the guide rods (77) are arranged in two numbers, the two guide rods (77) are respectively connected to two sides of the sliding frame (51), and the guide rods (77) are matched with the conical blocks (75).
3. The podium for ideological and political education with multi-angle projection function of claim 2, characterized in that, still include: and the buffer spring (8) is connected to the bottom of the chassis (4), and the bottom of the buffer spring (8) is connected with a circular plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654717.3A CN111713857B (en) | 2020-07-09 | 2020-07-09 | Podium for ideological and political education with multi-angle projection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010654717.3A CN111713857B (en) | 2020-07-09 | 2020-07-09 | Podium for ideological and political education with multi-angle projection function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111713857A CN111713857A (en) | 2020-09-29 |
| CN111713857B true CN111713857B (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010654717.3A Active CN111713857B (en) | 2020-07-09 | 2020-07-09 | Podium for ideological and political education with multi-angle projection function |
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| Country | Link |
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| CN (1) | CN111713857B (en) |
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| CN114431606B (en) * | 2022-01-25 | 2023-07-07 | 山东晨旭智能工程有限公司 | Video display platform |
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| CN110063577B (en) * | 2019-06-17 | 2021-07-06 | 江西应用技术职业学院 | Draft holder for geological survey |
| CN110281020A (en) * | 2019-06-26 | 2019-09-27 | 安徽佰尧电子科技有限公司 | A kind of numerical controlled machinery processing turning polishing all-in-one machine |
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