CN212256593U - Adjustable projection device for online education - Google Patents
Adjustable projection device for online education Download PDFInfo
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- CN212256593U CN212256593U CN202020642062.3U CN202020642062U CN212256593U CN 212256593 U CN212256593 U CN 212256593U CN 202020642062 U CN202020642062 U CN 202020642062U CN 212256593 U CN212256593 U CN 212256593U
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Abstract
The utility model discloses a projection arrangement for online education with adjustable, the utility model relates to an online education projection arrangement technical field, projection arrangement for online education with adjustable includes: the front side and the rear side of the upper surface of the projection box are both provided with transversely arranged sliding chutes, and the front side and the rear side between the inner walls of the two sliding chutes are both provided with side grooves; the sleeve shaft is positioned above the projection box, a transverse plate parallel to the upper surface of the projection box is welded at the tail end of the sleeve shaft, at least three connecting springs which are uniformly distributed are fixed on the lower surface of the transverse plate, and the tail ends of the connecting springs are welded with the upper surface of the projection box; a through groove communicated with the interior of the sleeve shaft is formed in the middle of the upper surface of the sleeve shaft, a circle of circular groove is formed in the middle of the inner wall of the through groove, and a threaded rod with the tail end movably inserted into the through groove is arranged above the sleeve shaft; the beneficial effects of the utility model reside in that: the adjusting structure is simple in design, left and right adjustment can be achieved while up-and-down adjustment is achieved, adjusting flexibility is improved, and the adjusting process is simple and convenient.
Description
Technical Field
The utility model belongs to the technical field of online education projection arrangement technique and specifically relates to a projection arrangement is used in online education with adjustable.
Background
Projection, provide the projection optical instrument of the jumbo size picture, on the basis of the direct-injection slide projector, increase a reflector, change the light path, make the picture of the projection film put on the objective glass of keeping flat project on the screen, the existing projector, in the course of adjusting, the direction adjustable is relatively single, is difficult to adjust to the left and right sides of the projector while realizing adjusting from top to bottom, and adjust the structure and construct complicacy, the course of adjusting is troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that above-mentioned exists with not enough, provide one kind and adjust structural design simply to can realize controlling the adjustment when realizing adjusting from top to bottom, improve the flexibility of adjusting, and the simple and convenient online education projection arrangement with adjustable of accommodation process.
In order to achieve the purpose, the adopted technical scheme is as follows:
projection arrangement for online education with adjustable, projection arrangement for online education with adjustable includes:
the front side and the rear side of the upper surface of the projection box are both provided with transversely arranged sliding chutes, and the front side and the rear side between the inner walls of the two sliding chutes are both provided with side grooves;
the sleeve shaft is positioned above the projection box, a transverse plate parallel to the upper surface of the projection box is welded at the tail end of the sleeve shaft, at least three connecting springs which are uniformly distributed are fixed on the lower surface of the transverse plate, and the tail ends of the connecting springs are welded with the upper surface of the projection box; a through groove communicated with the inside of the sleeve shaft is formed in the middle of the upper surface of the sleeve shaft, a circle of circular groove is formed in the middle of the inner wall of the through groove, a threaded rod with the tail end movably inserted into the through groove is arranged above the sleeve shaft, a first threaded sleeve in threaded connection with the threaded rod is sleeved on the upper middle of the outer wall of the threaded rod, a connecting rod which is vertically downward is welded in the middle of the front surface and the rear surface of the first threaded sleeve, a main sliding block is fixed at the tail end of the connecting rod, and side sliding blocks are fixed on the front side and the;
the L-shaped support plates are provided with two L-shaped support plates which are symmetrically welded on the left side and the right side of the lower surface of the projection box, the connecting blocks are welded in the middle of the outer walls of the L-shaped support plates, the through holes are formed in the middle of the outer walls of the connecting blocks, a circle of communicated side openings are formed in the middle of the inner walls of the through holes, threaded shafts are movably inserted into the through holes, and threaded sleeves II connected with the threaded shafts in a sleeved mode are arranged in the middle of the outer sides of the threaded shafts.
Preferably, a circle of convex block is fixed below the outer wall of the threaded rod, the convex block corresponds to the circular groove, the convex block slides into the circular groove and is movably connected with the circular groove, and the threaded rod is movably connected with the sleeve shaft through the convex block and the circular groove.
Preferably, the top of the threaded rod is rotatably connected with a motor through a motor shaft.
Preferably, the main sliding block slides into the sliding groove, the side sliding blocks slide into the side grooves, and the connecting rod is connected with the projection box in a left-right sliding mode through the main sliding block, the side sliding blocks, the sliding groove and the side grooves.
Preferably, side blocks are fixed on the upper side and the lower side of one end, inserted into the through hole, of the threaded shaft, and the side blocks correspond to the side holes and movably slide into the side holes.
Preferably, the width of the transverse plate is smaller than the distance between the two connecting rods.
By adopting the technical scheme, the beneficial effects are as follows:
the motor is started, the motor drives the threaded rod to rotate clockwise or anticlockwise, the threaded sleeve in threaded connection with the threaded rod performs threaded motion along the threaded rod, and along with the clockwise rotation or anticlockwise rotation of the threaded rod, the threaded sleeve moves downwards or downwards slowly, and meanwhile, the whole projection box is driven to move downwards or upwards, so that the up-and-down position adjustment of the projection box can be realized, and when the threaded rod rotates, the convex block also rotates along the circular groove, so that the connection between the threaded rod and the sleeve shaft is enhanced while the rotation of the threaded rod is not hindered;
clockwise turning threaded spindle, the threaded spindle is at two internal rotations of thread bush, and extend two left ends of thread bush slowly, and the side piece in the threaded spindle also will follow the threaded spindle at the internal rotation of side mouth, can avoid the threaded spindle to drive connecting block and projection box when rotating and rotate together like this, along with the continuous left end that extends the threaded bush two of threaded spindle, so the projection box also will be promoted, make main slider and side slider slide at spout and side inslot, alright so with the position about adjusting the projection box, and can play the effect of auxiliary adjustment through main slider and side slider, and through the threaded spindle in two L type extension boards, the user can select to adjust one of them threaded spindle, and is convenient and fast.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.
Fig. 1 is a schematic view of the overall front plan structure of the present invention;
FIG. 2 is a schematic side view of the projection box of the present invention;
FIG. 3 is a schematic view of the main shaft of the present invention;
fig. 4 is a schematic view of the assembly structure of the L-shaped support plate and the threaded shaft of the present invention.
The labels in the figure are: the projection box comprises a projection box 1, a sliding groove 101, a side groove 102, a sleeve shaft 2, a transverse plate 201, a through groove 202, a circular groove 203, a threaded rod 204, a first threaded sleeve 205, a connecting rod 206, a main slider 207, a side slider 208, a motor 209, a connecting spring 210, an L-shaped support plate 3, a connecting block 301, a through hole 302, a side opening 303, a threaded shaft 304 and a second threaded sleeve 305.
Detailed Description
In order to make the purpose, technical features and technical effects of the technical solution of the present invention clearer, the drawings of the embodiments of the present invention are combined together, and the example solution of the embodiments of the present invention is clearly and completely described.
Referring to fig. 1 to 4, the present application is an adjustable projection apparatus for online education, including:
the front side and the rear side of the upper surface of the projection box 1 are both provided with sliding chutes 101 which are transversely arranged, and the front side and the rear side of the middle of the inner walls of the two sliding chutes 101 are both provided with side grooves 102;
the sleeve shaft 2 is positioned above the projection box 1, a transverse plate 201 parallel to the upper surface of the projection box 1 is welded at the tail end of the sleeve shaft 2, at least three connecting springs 210 which are uniformly distributed are fixed on the lower surface of the transverse plate 201, and the tail ends of the connecting springs 210 are welded with the upper surface of the projection box 1;
a through groove 202 communicated with the inside of the sleeve shaft 2 is formed in the middle of the upper surface of the sleeve shaft 2, a circle of circular groove 203 is formed in the middle of the inner wall of the through groove 202, a threaded rod 204 with the tail end movably inserted into the through groove 202 is arranged above the sleeve shaft 2, a first threaded sleeve 205 in threaded connection with the threaded rod 204 is sleeved above the outer wall of the threaded rod 204, a connecting rod 206 which is vertically downward is welded in the middle of the front surface and the rear surface of the first threaded sleeve 205, a main sliding block 207 is fixed at the tail end of the connecting rod 206, side sliding blocks 208 are fixed on the front side and the rear side of the main sliding block 207, a circle of convex blocks are fixed below the outer wall of the threaded rod 204 and correspond to the circular groove 203, the convex blocks slide into the circular groove 203 and are movably connected with the circular groove 203, the threaded rod 204 is movably connected with the sleeve shaft 2 through the convex blocks and the circular groove 203, the top of the threaded rod, The side sliding blocks 208, the sliding grooves 101 and the side grooves 102 are connected with the projection box 1 in a left-right sliding mode, and the width of the transverse plate 201 is smaller than the distance between the two connecting rods 206;
specifically, the end of the connecting spring 210 is welded to the surface of the projection box 1, so that the sleeve shaft 2 can be connected to the projection box 1, the main slider 207 and the side slider 208 are slid into the sliding groove 101 and the side groove 102, respectively, so that the connecting rod 206 is connected to the projection box 1, the motor 209 is started, a motor shaft in the motor 209 drives the threaded rod 204 to rotate clockwise, the first thread sleeve 205 in threaded connection with the threaded rod 204 performs threaded motion along the threaded rod 204, and along with the clockwise rotation of the threaded rod 204, the first thread sleeve 205 will move slowly downwards, the first thread sleeve 205 moves while driving the connecting rod 206 and the whole projection box 1 to move downwards, if the motor 209 is turned counterclockwise, the first thread sleeve 205 will move slowly upwards along the threaded rod 204, so that the up-down position adjustment of the projection box 1 can be realized, and when the threaded rod 204 rotates, the convex block rotates along the circular groove 203, so that the rotation of the threaded rod 204 is not hindered, the connection between the threaded rod 204 and the sleeve shaft 2 is enhanced, and the connecting spring 210 contracts or stretches correspondingly when the projection box 1 moves upwards or downwards through the connecting spring 210;
the L-shaped support plate 3 is provided with two L-shaped support plates 3 which are symmetrically welded on the left side and the right side of the lower surface of the projection box 1, the middle of the outer wall of each L-shaped support plate 3 is welded with a connecting block 301, the middle of the outer wall of each connecting block 301 is provided with a through hole 302, the middle of the inner wall of each through hole 302 is provided with a circle of communicated side holes 303, each through hole 302 is movably inserted with a threaded shaft 304, the middle of the outer side of each threaded shaft 304 is sleeved with a second threaded sleeve 305 in threaded connection with the threaded shaft 304, the upper side and the lower side of one end, inserted into each through hole 302, of each threaded shaft 304 are fixedly provided with side blocks;
further, by holding the threaded sleeve 305, by rotating the threaded shaft 304 clockwise, the threaded shaft 304 rotates in the second threaded sleeve 305, with continuous rotation, one end of the threaded shaft 304 inserted into the through hole 302 slowly extends out of the left end of the second threaded sleeve 305, and the side block in the threaded shaft 304 rotates in the side hole 303 along with the threaded shaft 304, so that the connecting block 301 and the projection box 1 can be prevented from rotating together when the threaded shaft 304 rotates, and with continuous extension of the threaded shaft 304 out of the left end of the second threaded sleeve 305, the projection box 1 will be pushed, so that the main slider 207 and the side slider 208 slide in the sliding groove 101 and the side groove 102, so that the left-right position of the projection box 1 can be adjusted, and the main slider 207 and the side slider 208 can play a role of auxiliary adjustment, and through the threaded shafts 304 in the two L-shaped support plates 3, a user can select to adjust one of the threaded shafts 304, is convenient and quick.
In the present specification, each embodiment is described with emphasis on differences from other embodiments, and the same or similar parts between the embodiments may be referred to each other.
Unless otherwise defined, technical or scientific terms used in the present embodiments should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs. In the present specification, the terms "upper", "lower", "left" and "right" are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the above specific embodiments without departing from the scope of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention, which is defined by the appended claims.
Claims (6)
1. Projection arrangement for online education with adjustable, its characterized in that, projection arrangement for online education with adjustable includes:
the projection box comprises a projection box (1), wherein the front side and the rear side of the upper surface of the projection box (1) are respectively provided with a sliding chute (101) which is transversely arranged, and the front side and the rear side of the middle of the inner walls of the two sliding chutes (101) are respectively provided with a side groove (102);
the projection box comprises a sleeve shaft (2), wherein the sleeve shaft (2) is positioned above the projection box (1), a transverse plate (201) parallel to the upper surface of the projection box (1) is welded at the tail end of the sleeve shaft (2), at least three connecting springs (210) which are uniformly distributed are fixed on the lower surface of the transverse plate (201), and the tail ends of the connecting springs (210) are welded with the upper surface of the projection box (1); a through groove (202) communicated with the interior of the sleeve shaft (2) is formed in the middle of the upper surface of the sleeve shaft (2), a circle of circular groove (203) is formed in the middle of the inner wall of the through groove (202), a threaded rod (204) with the tail end movably inserted into the through groove (202) is arranged above the sleeve shaft (2), a threaded sleeve I (205) in threaded connection with the threaded rod (204) is sleeved on the middle upper portion of the outer wall of the threaded rod (204), a connecting rod (206) which is vertically downward is welded in the middle position of the front surface and the rear surface of the threaded sleeve I (205), a main sliding block (207) is fixed at the tail end of the connecting rod (206), and side sliding blocks (208) are fixed;
the L-shaped support plate (3) is provided with two L-shaped support plates (3) which are symmetrically welded to the left side and the right side of the lower surface of the projection box (1), the middle of the outer wall of each L-shaped support plate (3) is welded with a connecting block (301), the middle of the outer wall of each connecting block (301) is provided with a through hole (302), the middle of the inner wall of each through hole (302) is provided with a circle of communicated side openings (303), a threaded shaft (304) is movably inserted into each through hole (302), and a second threaded sleeve (305) in threaded connection with the threaded shaft (304) is sleeved into the middle of the outer side of the threaded shaft (304).
2. The adjustable projection device for online education as claimed in claim 1, wherein: the threaded rod (204) is fixed with the round lug below the outer wall, just the lug corresponds with circular slot (203), the lug slides in circular slot (203) and rather than swing joint, just threaded rod (204) is through lug and circular slot (203) and sleeve axle (2) swing joint.
3. The adjustable projection device for online education as claimed in claim 1, wherein: the top of the threaded rod (204) is rotationally connected with a motor (209) through a motor shaft.
4. The adjustable projection device for online education as claimed in claim 1, wherein: the main sliding block (207) slides into the sliding groove (101), the side sliding block (208) slides into the side groove (102), and the connecting rod (206) is connected with the projection box (1) in a left-right sliding mode through the main sliding block (207), the side sliding block (208), the sliding groove (101) and the side groove (102).
5. The adjustable projection device for online education as claimed in claim 1, wherein: side blocks are fixed on the upper side and the lower side of one end, inserted into the through hole (302), of the threaded shaft (304), correspond to the side hole (303), and slide into the side hole (303) movably.
6. The adjustable projection device for online education as claimed in claim 1, wherein: the width of the transverse plate (201) is smaller than the distance between the two connecting rods (206).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642062.3U CN212256593U (en) | 2020-04-25 | 2020-04-25 | Adjustable projection device for online education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642062.3U CN212256593U (en) | 2020-04-25 | 2020-04-25 | Adjustable projection device for online education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212256593U true CN212256593U (en) | 2020-12-29 |
Family
ID=73995843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020642062.3U Active CN212256593U (en) | 2020-04-25 | 2020-04-25 | Adjustable projection device for online education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212256593U (en) |
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2020
- 2020-04-25 CN CN202020642062.3U patent/CN212256593U/en active Active
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