CN212537426U - Mounting rack of projector for turning over books in air - Google Patents
Mounting rack of projector for turning over books in air Download PDFInfo
- Publication number
- CN212537426U CN212537426U CN202020885103.1U CN202020885103U CN212537426U CN 212537426 U CN212537426 U CN 212537426U CN 202020885103 U CN202020885103 U CN 202020885103U CN 212537426 U CN212537426 U CN 212537426U
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- adjusting
- mounting
- connecting plate
- plate
- projector
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Abstract
The utility model relates to a mounting bracket of a projector for turning over books in the air, which is used for mounting the projector on a ceiling, relates to the technical field of projection equipment mounting, and comprises a mounting post connected on the ceiling, wherein the lower end of the mounting post is provided with a connecting plate in order to solve the problem that the existing mounting bracket can not adjust the angle of the projector conveniently; the projector angle adjusting device also comprises an adjusting component which is arranged at the lower side of the connecting plate and used for adjusting the angle of the projector; the adjusting assembly comprises an adjusting plate arranged on the lower side of the connecting plate, a connecting rod arranged between the adjusting plate and the connecting plate and an adjusting rod arranged between the adjusting plate and the connecting plate and used for adjusting the distance between one side edge of the adjusting plate and the connecting plate; the connecting rod and the adjusting rod are respectively provided with two connecting rods, the lower ends of the connecting rods are hinged on the adjusting plate, and the lower ends of the adjusting rods are also hinged on the adjusting plate. The utility model discloses have the effect that can be comparatively convenient carry out the adjustment to the angle of projecting apparatus.
Description
Technical Field
The utility model belongs to the technical field of the technique of projection equipment installation and specifically relates to a separate empty mounting bracket that turns over book and use projecting apparatus that relates to.
Background
The space book turning system is also called virtual book turning, induction book turning and the like, the virtual electronic book is just like an opened book, a visitor waves an arm and performs a book turning function through induction of induction equipment of the space book turning system, a displayed image needs to be projected by a projector, and the projector mounting frame is equipment used for mounting the projector.
Referring to fig. 1, a conventional mounting bracket for a projector is used to mount a projector 1 on a ceiling 2, and includes a mounting post 3 fixed on the ceiling 2, and a connecting plate 4 fixed to a lower end of the mounting post 3 for mounting the projector 1; the projector 1 is mounted on the underside of the connecting plate 4, the projection angle of which cooperates with the display stand for display.
In-process at the use book system that turns over at a distance from sky, the visitor has children and adult, and its height exists the gap, generally needs to adjust the height of the show stand that carries out the show, and under the condition of adjusting it, the position and the angle of projecting apparatus 1 are fixed, can have its position of throwing on the show stand and appear the piece deviation, need adjust the projecting apparatus angle that exceeds after carrying out the height adjustment to the show stand, and the operation process is more inconvenient.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, one of the purposes of the utility model is to provide a separate empty mounting bracket of turning over for book projecting apparatus, through setting up adjusting part, can be more convenient adjust the angle of projecting apparatus, it is more convenient to operate.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a mounting rack of a projector for page turning in the air is used for mounting the projector on a ceiling and comprises a mounting column connected to the ceiling, wherein the lower end of the mounting column is provided with a connecting plate; the projector angle adjusting device also comprises an adjusting component which is arranged at the lower side of the connecting plate and used for adjusting the angle of the projector; the adjusting assembly comprises an adjusting plate arranged on the lower side of the connecting plate, a connecting rod arranged between the adjusting plate and the connecting plate and an adjusting rod arranged between the adjusting plate and the connecting plate and used for adjusting the distance between one side edge of the adjusting plate and the connecting plate; the lower end of the connecting rod is hinged on the adjusting plate, and the lower end of the adjusting rod is also hinged on the adjusting plate; the lower side of the connecting plate and the corresponding position of the adjusting rod are respectively connected with a sliding block in a sliding manner, and the upper end of the adjusting rod is hinged on the corresponding sliding block; a driving piece which is used for driving the sliding block to slide is arranged on the adjusting plate; the lower side of the adjusting plate is fixedly connected with an inclined plate used for fixing the projector.
Through adopting above-mentioned technical scheme, when needing to adjust the angle of projecting apparatus, it slides to drive the slider that corresponds through the driving piece, the upper end that drives the regulation pole is along with slider synchronous motion, the angle of adjusting the pole takes place to rotate, the interval between one side at regulation pole place and the connecting plate changes on the regulating plate promptly, the connecting rod lower extreme is articulated with the regulating plate, make the regulating plate produce the rotation of certain angle, adjust the projection angle of projecting apparatus, make it and the show stand adaptation that carries out the show, high durability and convenient operation.
The present invention may be further configured in a preferred embodiment as: the sliding rails are respectively arranged at the positions, corresponding to the sliding blocks, of the lower side of the connecting plate and comprise two L-shaped plates, each L-shaped plate comprises a vertical part fixedly connected to the lower side of the connecting plate and a horizontal part vertically and fixedly connected to the edge of the lower side of the vertical part; the horizontal parts of the two corresponding L-shaped plates are positioned on the opposite side of the vertical part.
Through adopting above-mentioned technical scheme, can guarantee the stability of slider connection on the connecting plate, the process of adjusting the angle of projecting apparatus is comparatively stable.
The present invention may be further configured in a preferred embodiment as: two ends of each corresponding L-shaped plate are respectively provided with a baffle; the driving piece comprises a screw rod and a driving motor, wherein the screw rod is rotatably supported on the baffle plates at the two ends and is in threaded connection with the sliding block, and the driving motor is arranged on the connecting plate and is used for driving the screw rod to rotate.
Through adopting above-mentioned technical scheme, driving motor drives the screw rod and rotates, can carry out the adjustment of comparatively less scope to the slider, carries out less adjustment to the projection angle of projecting apparatus promptly, and is comparatively accurate to its adjustment, and control slider removes to a certain position after, need not carry out other fixings to it, can carry out comparatively stable fixed to it through screw rod and slider cooperation.
The present invention may be further configured in a preferred embodiment as: a transmission assembly is arranged between the driving motor and the screw rod; one end of each screw rod is identical to the other end of each screw rod and penetrates out of the baffle; the transmission assembly comprises first bevel gears respectively fixed on the end parts of the two screw penetrating baffles, a transmission rod rotatably supported on the lower side surface of the connecting plate, and second bevel gears fixed on the transmission rod and respectively meshed with the two first bevel gears; the output shaft of the driving motor is connected with the transmission rod.
Through adopting above-mentioned technical scheme, driving motor passes through drive assembly and drives two synchronous rotations, can guarantee the synchronism that two sliders removed, reduces the phenomenon that two sliders slip asynchronous to appear, and it is comparatively convenient to control when adjusting the projecting apparatus angle.
The present invention may be further configured in a preferred embodiment as: a lifting component for driving the connecting plate to lift is arranged between the connecting plate and the mounting column; the lifting assembly comprises a threaded column rotatably supported on the connecting plate, a lifting motor arranged on the connecting plate and used for driving the threaded column to rotate, and a limiting piece arranged on the connecting plate and used for limiting the rotation of the connecting plate; the threaded column is arranged in the mounting column in a penetrating mode and is in threaded connection with the mounting column.
Through adopting above-mentioned technical scheme, elevator motor drives the screw thread post and rotates, and then drives the projecting apparatus and goes up and down, when needs operate the projecting apparatus, control projecting apparatus that can be comparatively convenient descends lower position department, need not climb to the overshoot and operate, and it is more convenient to be difficult to the dangerous condition of appearing.
The present invention may be further configured in a preferred embodiment as: the outer ring of the section of the mounting column is polygonal; the limiting part is a limiting sleeve fixed on the upper side face of the connecting column, the shape of the inner ring of the section of the limiting sleeve is the same as that of the outer ring of the section of the mounting column, and the limiting sleeve is sleeved on the outer side of the mounting column.
Through adopting above-mentioned technical scheme, can be comparatively convenient inject the connecting plate, make it can not take place to rotate, guarantee occuping of connecting plate lift process, spacing sleeve cover is established in the outside of erection column, reduces occuping of space to a certain extent.
The present invention may be further configured in a preferred embodiment as: the size of the inner ring of the section of the limiting sleeve is larger than that of the outer ring of the section of the mounting column; the upper end of the inner ring of the limiting sleeve is provided with a limiting edge, and the inner ring of the limiting edge is attached to the outer ring of the mounting column; the lower extreme in the erection column outside is provided with and spacing along complex protruding edge, and protruding edge outer lane pastes with spacing sleeve medial surface mutually.
Through adopting above-mentioned technical scheme, when the control connection board descends, can reduce the phenomenon that appears screw thread post and erection column and break away from, prescribe a limit to it through spacing edge and protruding edge, reduce to appear descending too much and make the projecting apparatus drop the phenomenon that the damage appears, guarantee the safety of equipment.
The present invention may be further configured in a preferred embodiment as: the upper end of the mounting column is provided with a mounting assembly used for connecting the mounting column and a ceiling, and the mounting assembly comprises a mounting sleeve fixed on the ceiling and a plug board fixed at the upper end of the mounting column; a through hole with the end part communicated with the end surface of the mounting sleeve is formed in the lower side surface of the mounting sleeve, the plugboard is inserted into the mounting sleeve, and the mounting column penetrates out of the through hole to the lower side of the mounting sleeve; fix fishplate bar and installation sleeve through the bolt.
Through adopting above-mentioned technical scheme, when fixing the erection column to the ceiling, at first fix the installation sleeve on the ceiling, later insert the plugboard in the installation sleeve, the telescopic weight of installation is less than in the holistic weight of erection column and adjusting part, and is relatively more convenient to it is fixed, later insert the plugboard in the installation sleeve, before fixing the plugboard through the bolt, fix in advance to it, it is comparatively convenient to fix the plugboard through the bolt.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the projection angle of the projector can be conveniently adjusted through the arranged adjusting assembly, and after the display stand is adjusted in the process of using the space book turning device, the angle of the projector can be conveniently adjusted to enable the projection angle to be matched with the display stand, so that the operation is convenient;
2. by arranging the lifting assembly, under the condition that the projector needs to be operated or cleaned and overhauled, the projector can be conveniently controlled to descend to a lower height by controlling the lifting motor, the projector can be directly operated without climbing to a higher position, convenience is realized, and the dangerous condition can be reduced;
3. through setting up installation sleeve and plugboard, at first fix the installation sleeve when the installation, later insert the plugboard in the installation sleeve, fix in advance it, fix plugboard and installation sleeve through the bolt at last, fixed operation is comparatively convenient.
Drawings
Fig. 1 is a mounting bracket of a conventional projector;
FIG. 2 is a schematic view of a projector mount in the present embodiment;
FIG. 3 is a schematic view for showing the structure of the adjusting assembly;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3;
FIG. 5 is a schematic view showing the structure of a screw and a slider;
FIG. 6 is an enlarged schematic view of portion B of FIG. 5;
FIG. 7 is a schematic view of the lifting assembly shown;
FIG. 8 is an enlarged schematic view of portion C of FIG. 7;
FIG. 9 is an enlarged schematic view of portion D of FIG. 7;
fig. 10 is a schematic view for showing the structure of the mounting assembly.
In the figure, 1, a projector; 2. a ceiling; 3. mounting a column; 31. a threaded hole; 32. a convex edge; 4. a connecting plate; 41. a slide rail; 42. an L-shaped plate; 421. a vertical portion; 422. a horizontal portion; 43. a baffle plate; 44. a support plate; 5. an adjustment assembly; 51. an adjusting plate; 511. a sloping plate; 52. a connecting rod; 53. adjusting a rod; 54. a slider; 55. a drive member; 551. a screw; 552. a drive motor; 56. a transmission assembly; 561. a first bevel gear; 562. a transmission rod; 563. a second bevel gear; 6. a lifting assembly; 61. a threaded post; 62. a lifting motor; 63. a limiting sleeve; 631. a limiting edge; 7. mounting the component; 71. installing a sleeve; 711. a through hole; 72. a plugboard.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 2 and 3, in order to provide a mounting bracket of a projector for page turning over in the air for fixing the projector 1 on a ceiling 2, the mounting bracket of the projector comprises a mounting post 3 connected to the ceiling 2, a connecting plate 4 horizontally connected to the lower end of the mounting post 3, and an adjusting component 5 arranged below the connecting plate 4 for mounting and adjusting the projector 1; the adjusting assembly 5 includes an adjusting plate 51 disposed at a lower side of the connecting plate 4, a connecting rod 52 connected between the connecting plate 4 and the adjusting plate 51, and an adjusting lever 53 disposed between the connecting plate 4 and the adjusting plate 51 to adjust a position of the adjusting plate 51; two connecting rods 52 are respectively vertically arranged, the upper ends of the two connecting rods 52 are respectively fixedly connected to the positions on two sides of one side edge on the lower side surface of the connecting plate 4, and the lower ends of the two connecting rods are respectively hinged to the corresponding positions on the adjusting plate 51; two adjusting rods 53 are provided, which are located at the side opposite to the two connecting rods 52, and the lower ends of the two adjusting rods are respectively hinged on the adjusting plate 51; referring to fig. 5 and 6, the lower side surface of the connecting plate 4 is slidably connected with two sliding blocks 54, the two sliding blocks 54 respectively correspond to the two adjusting rods 53, and the upper ends of the two adjusting rods 53 are respectively hinged on the sliding blocks 54; the two sliding blocks 54 respectively correspond to the upper ends of the two connecting rods 52, and the sliding direction of the sliding blocks 54 faces to the direction close to or far away from the connecting rods 52; a driving piece 55 for driving the sliding block 54 to slide is arranged at the lower side of the connecting plate 4; a tilt plate 511 is fixed to the lower side of the adjustment plate 51, and the projector 1 is fixed to the tilt plate 511.
Referring to fig. 5 and 6, the lower side of the connecting plate 4 is provided with two sliding rails 41 respectively corresponding to the two sliding blocks 54, each sliding rail 41 comprises two L-shaped plates 42, each L-shaped plate 42 comprises a vertical portion 421 fixedly connected to the lower side of the connecting plate 4 and a horizontal portion 422 vertically fixedly connected to the lower side edge of the vertical portion 421, and the horizontal portions 422 of the two corresponding L-shaped plates 42 are located on the opposite sides of the two vertical portions 421; the slider 54 is disposed between the two L-shaped plates 42, and is slidably connected to the L-shaped plates 42.
Referring to fig. 3 and 4, two ends of the L-shaped plate 42 are respectively and fixedly connected with a baffle 43; referring to fig. 5 and 6, the driving member 55 includes a screw 551 rotatably supported on the baffle 43 and a driving motor 552 (see fig. 3) for driving the screw 551 to rotate, the screws 551 respectively penetrate through the corresponding sliders 54 and are in threaded connection with the sliders 54; a transmission assembly 56 is arranged between the screw 551 and the driving motor 552; the end of the screw 551 remote from the connecting rod 52 penetrates the baffle 43; referring to fig. 3 and 4, the driving assembly 56 includes first bevel gears 561 respectively fixed to ends of the two screws 551 penetrating the blocking plate 43, a driving rod 562 rotatably supported on the lower side of the connection plate 4, and second bevel gears 563 fixed to the driving rod 562 and respectively engaged with the two first bevel gears 561; two supporting plates 44 are arranged at corresponding positions on the lower side surface of the connecting plate 4, the transmission rod 562 is rotatably supported on the two supporting plates 44, and the output end of the driving motor 552 is connected with the transmission rod 562 so as to drive the transmission rod 562 to rotate.
When the projection angle of the projector 1 needs to be adjusted, the driving motor 552 is controlled to rotate, the driving transmission rod 562 is driven to rotate, the two screw rods 551 are driven to rotate through the meshing of the first bevel gear 561 and the second bevel gear 563, and then the two sliding blocks 54 are driven to slide, the upper ends of the two adjusting rods 53 move synchronously along with the sliding blocks 54, the lower ends of the two adjusting rods are hinged to the adjusting plate 51, the adjusting plate 51 and the connecting plate 4 are adjusted through rotating the adjusting rod 53, namely, the angle of the projector 1 can be adjusted, the adjusting process is convenient, after the height of the display stand of the space book turning system is adjusted, the angle of the projector 1 can be adjusted conveniently, and the projector and the display stand can be matched.
Various data transmission lines need to be connected to the projector 1, in addition, after the projector 1 is used for a period of time, the projector 1 needs to be cleaned, or in the case that the projector 1 needs to be inspected and maintained, auxiliary equipment such as escalators and tables and chairs need to be used to climb to a higher position for operation, on one hand, the operation is troublesome, and in addition, dangerous situations may occur, so that, referring to fig. 7, a lifting assembly 6 for adjusting the height of the connecting plate 4 is arranged between the mounting column 3 and the connecting plate 4.
Referring to fig. 7, the lifting assembly 6 includes a threaded post 61 vertically disposed and rotatably supported on the connecting plate 4 and threadedly connected to the mounting post 3, a lifting motor 62 (see fig. 3) fixed on the lower side of the connecting plate 4 for driving the threaded post 61 to rotate, and a limiting member disposed on the connecting plate 4 for limiting the connecting plate 4; a threaded hole 31 is formed in the lower end face of the mounting column 3 along the length direction of the mounting column, and the threaded column 61 is inserted into the threaded hole 31; the outer ring of the section of the mounting column 3 is rectangular, the limiting part is a limiting sleeve 63, the vertical column of the limiting sleeve is fixed on the upper side face of the connecting plate 4, the shape of the inner ring of the section of the limiting sleeve 63 is the same as that of the outer ring of the section of the mounting column 3, and the limiting sleeve is sleeved on the outer side of the mounting column 3.
Referring to fig. 7 and 8, the size of the inner ring of the section of the limiting sleeve 63 is larger than that of the outer ring of the section of the mounting column 3, the upper end of the limiting sleeve 63 is provided with a limiting edge 631, and the limiting edge 631 is attached to the outer side surface of the mounting column 3; referring to fig. 7 and 9, a convex edge 32 is arranged at the lower end of the outer side surface of the mounting column 3, and the convex edge 32 is attached to the inner side surface of the limiting sleeve 63.
Through control elevator motor 62, it rotates to drive threaded column 61, it and erection column 3 screw-thread fit, and cooperate with erection column 3 through spacing sleeve 63, can prevent to appear rotating between connecting plate 4 and the erection column 3, will on the drive connecting plate 4, highly adjusting projector 1, when needing to operate projector 1, control projector 1 descends, can comparatively conveniently operate, control projector 1 rises the back, threaded column 61 inlays in erection column 3, can reduce to occupy the space, spacing edge 631 and protruding edge 32 cooperation through setting up, at the in-process that control projector 1 descends, can reduce the phenomenon that appears breaking away from of threaded column 61 and erection column 3, it is more stable to install projector 1.
Referring to fig. 10, the upper end of the mounting column 3 is provided with a mounting assembly 7 for fixing the mounting column to the ceiling 2, the mounting assembly 7 includes a mounting sleeve 71 fixed to the ceiling 2 by screws and a plug board 72 fixed to the upper end surface of the mounting column 3; a through hole 711 is formed in the middle of the lower side of the mounting sleeve 71 along the length direction of the mounting sleeve, and two ends of the through hole 711 are communicated to the end face of the mounting sleeve 71; the plug board 72 is inserted into the mounting sleeve 71, the mounting portion passes through the corresponding through hole 711, and the plug board 72 and the mounting sleeve 71 are fixed by bolts.
When the mounting post 3 is fixed on the ceiling 2, firstly, the mounting sleeve 71 is fixed on the ceiling 2 through screws, then the insertion plate 72 at the upper end of the mounting post 3 is inserted into the mounting sleeve 71, and finally, the insertion plate 72 and the mounting sleeve 71 are fixed through bolts; installing sleeve 71 compare in installing column 3 and downside adjusting part 5's whole, its weight is less, fixes it at ceiling 2 and compares in directly fixing installing column 3, and it is comparatively convenient to operate, when fixing installing column 3 on installing sleeve 71, through plugboard 72 and the cooperation of installing sleeve 71, tentatively fixes installing column 3, when fixing inserting plate 72 through the bolt, it is comparatively convenient to operate.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A mounting rack of a projector for page turning in the air is used for mounting a projector (1) on a ceiling (2), and comprises a mounting column (3) connected to the ceiling (2), wherein the lower end of the mounting column (3) is provided with a connecting plate (4); the method is characterized in that: the projector also comprises an adjusting component (5) which is arranged on the lower side of the connecting plate (4) and is used for adjusting the angle of the projector (1); the adjusting assembly (5) comprises an adjusting plate (51) arranged on the lower side of the connecting plate (4), a connecting rod (52) arranged between the adjusting plate (51) and the connecting plate (4), and an adjusting rod (53) arranged between the adjusting plate (51) and the connecting plate (4) and used for adjusting the distance between one side edge of the adjusting plate (51) and the connecting plate (4); the number of the connecting rods (52) and the number of the adjusting rods (53) are two, the lower ends of the connecting rods (52) are hinged to the adjusting plate (51), and the lower ends of the adjusting rods (53) are hinged to the adjusting plate (51); the lower side of the connecting plate (4) is respectively connected with a sliding block (54) at the position corresponding to the adjusting rod (53) in a sliding way, and the upper end of the adjusting rod (53) is hinged on the corresponding sliding block (54); the adjusting plate (51) is provided with a driving piece (55) which is corresponding to the driving slide block (54) to slide; a sloping plate (511) for fixing the projector (1) is fixedly connected to the lower side of the adjusting plate (51).
2. The mount of a projector for an overhead book according to claim 1, wherein: sliding rails (41) are respectively arranged at the positions, corresponding to the sliding blocks (54), of the lower side of the connecting plate (4), each sliding rail (41) comprises two L-shaped plates (42), each L-shaped plate (42) comprises a vertical part (421) fixedly connected to the lower side of the connecting plate (4) and a horizontal part (422) vertically fixedly connected to the edge of the lower side of the vertical part (421); the horizontal parts (422) of the two corresponding L-shaped plates (42) are positioned on the opposite side of the vertical part (421).
3. The mount of a projector for an overhead book according to claim 2, wherein: two ends of each corresponding L-shaped plate (42) are respectively provided with a baffle (43); the driving part (55) comprises a screw rod (551) which is rotatably supported on the baffle plates (43) at the two ends and is in threaded connection with the sliding block (54), and a driving motor (552) which is arranged on the connecting plate (4) and is used for driving the screw rod (551) to rotate.
4. The mount of claim 3, wherein: a transmission assembly (56) is arranged between the driving motor (552) and the screw (551); the same ends of the two screws (551) penetrate out of the baffle (43); the transmission assembly (56) comprises a first bevel gear (561) which is respectively fixed on the ends of two screws (551) penetrating through the baffle (43), a transmission rod (562) which is rotatably supported on the lower side surface of the connecting plate (4), and a second bevel gear (563) which is fixed on the transmission rod (562) and is respectively meshed with the two first bevel gears (561); the output shaft of the driving motor (552) is connected with the transmission rod (562).
5. The mount of a projector for an overhead book according to claim 1, wherein: a lifting component (6) for driving the connecting plate (4) to lift is arranged between the connecting plate (4) and the mounting column (3); the lifting assembly (6) comprises a threaded column (61) rotatably supported on the connecting plate (4), a lifting motor (62) arranged on the connecting plate (4) and used for driving the threaded column (61) to rotate, and a limiting piece arranged on the connecting plate (4) and used for limiting the connecting plate (4) to rotate; the threaded column (61) is arranged in the mounting column (3) in a penetrating way and is in threaded connection with the mounting column (3).
6. The mount of claim 5, wherein: the outer ring of the section of the mounting column (3) is polygonal; the limiting part is a limiting sleeve (63) which is fixed on the upper side surface of the connecting column, the shape of the inner ring of the section of the limiting sleeve is the same as that of the outer ring of the section of the mounting column (3), and the limiting sleeve (63) is sleeved on the outer side of the mounting column (3).
7. The mount of claim 6, wherein: the size of the inner ring of the section of the limiting sleeve (63) is larger than that of the outer ring of the section of the mounting column (3); the upper end of the inner ring of the limiting sleeve (63) is provided with a limiting edge (631), and the inner ring of the limiting edge (631) is attached to the outer ring of the mounting column (3); the lower end of the outer side of the mounting column (3) is provided with a convex edge (32) matched with the limiting edge (631), and the outer ring of the convex edge (32) is attached to the inner side surface of the limiting sleeve (63).
8. The mount of a projector for an overhead book according to claim 1, wherein: the upper end of the mounting column (3) is provided with a mounting assembly (7) for connecting the mounting column (3) and the ceiling (2), and the mounting assembly comprises a mounting sleeve (71) fixed on the ceiling (2) and an inserting plate (72) fixed at the upper end of the mounting column (3); a through hole (711) with the end communicated with the end face of the mounting sleeve (71) is formed in the lower side face of the mounting sleeve (71), the plugboard (72) is inserted into the mounting sleeve (71), and the mounting column (3) penetrates out of the through hole (711) to the lower side of the mounting sleeve (71); the plug plate (72) and the mounting sleeve (71) are fixed by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020885103.1U CN212537426U (en) | 2020-05-23 | 2020-05-23 | Mounting rack of projector for turning over books in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020885103.1U CN212537426U (en) | 2020-05-23 | 2020-05-23 | Mounting rack of projector for turning over books in air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212537426U true CN212537426U (en) | 2021-02-12 |
Family
ID=74542190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020885103.1U Expired - Fee Related CN212537426U (en) | 2020-05-23 | 2020-05-23 | Mounting rack of projector for turning over books in air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212537426U (en) |
-
2020
- 2020-05-23 CN CN202020885103.1U patent/CN212537426U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |