CN211289355U - Portable projection device for education and training - Google Patents
Portable projection device for education and training Download PDFInfo
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- CN211289355U CN211289355U CN202020059245.2U CN202020059245U CN211289355U CN 211289355 U CN211289355 U CN 211289355U CN 202020059245 U CN202020059245 U CN 202020059245U CN 211289355 U CN211289355 U CN 211289355U
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Abstract
The utility model provides a portable projector device for education and training, which comprises a projector box and a movable protective box, two groups of first sliding grooves are symmetrically arranged on the inner walls of the two sides of the movable protective box, each group is provided with two first sliding grooves, cross lifting frames are respectively connected in the two groups of first sliding grooves in a sliding manner, a platform plate is arranged at the top parts of the two cross lifting frames, a groove body is arranged at the bottom part of the platform plate, two groups of second sliding chutes are symmetrically arranged on the two side groove walls of the groove body, each group is provided with two second sliding chutes, the two groups of second sliding chutes are respectively connected with the two crossed lifting frames in a sliding way, a bearing with a seat is fixed at the center of the top of the platform plate through a bolt, the bearing with the seat is rotatably connected with a connecting plate, four single-hole connecting pieces are cast and welded on the circumferential wall of the connecting disc in an equant mode, and each single-hole connecting piece is fixed with the bottom plate of the projector box through a screw. The utility model discloses it is convenient not only to have the removal, and easy operation's advantage has better protection to the projection host computer moreover.
Description
Technical Field
The utility model relates to a projection equipment technical field specifically is a portable projection arrangement for education and training.
Background
In modern teaching, a projection device is often used to assist a lecturer in explaining knowledge.
According to a geometry projection device for high school mathematics teaching that patent document publication number is CN107622705A, the device includes gyro wheel, base, electric putter, low power condensing lens, projection device box, control button, control pilot lamp, multimedia projector, clear glass groove, fixed orifices, negative pressure air pump, bearing, rotation box, strong light, control box, multimedia box, battery, servo motor, drive gearbox, pivot. The device is not high enough in convenient degree when using, and the operation is got up comparatively loaded down with trivial details to there is some shortcomings in the aspect of the protection to the projection host computer.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a portable projection arrangement for educational training for solve the technical problem who proposes in the above-mentioned background art.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
a portable projection device for education and training comprises a projector box and a movable protective box, wherein two groups of first sliding grooves are symmetrically arranged on the inner walls of two sides of the movable protective box, each group is provided with two groups, two groups of first sliding grooves are respectively and slidably connected with cross lifting frames, a platform plate is arranged at the tops of the two cross lifting frames, a groove body is arranged at the bottom of the platform plate, two groups of second sliding grooves are symmetrically arranged on the groove walls of two sides of the groove body, each group is provided with two groups of second sliding grooves, the two groups of second sliding grooves are respectively and slidably connected with the two cross lifting frames, a base bearing is fixed at the center of the top of the platform plate through bolts, a connecting plate is rotatably connected on the base bearing, four single-hole connecting pieces are equidistantly cast and welded on the circumferential wall of the connecting plate, each single-hole connecting piece is fixed with the projector box base plate through bolts, and a plurality of hemispherical positioning grooves are, the connection pad bottom bilateral symmetry is provided with accomodates the groove, every accomodate the inslot and all install the flexible post of spring perpendicularly, every the flexible capital portion of spring is the hemisphere and is the activity with every hemisphere constant head tank one by one and agrees with.
Furthermore, the cross position of each cross lifting frame is connected in a rotating mode through a bolt penetrating through the rod body, and a nut of the bolt is a butterfly nut.
Furthermore, each spring telescopic column is located on the outside of the accommodating groove and is welded with an annular separation blade.
Further, it has assorted protection case lid to remove protective housing one side articulated, just the bottom is located two sets ofly in the removal protective housing the lower extreme of first spout horizontal plane is provided with the accessory and shelves the groove.
Furthermore, four apex angle departments of removal protective housing bottom rotate one by one through knob formula limiting screw and are connected with the bracing piece, every the other end bottom vertical fixation of bracing piece has the callus on the sole.
Furthermore, each foot pad is a disc-shaped rubber non-slip pad or a silica gel sucker, and is detachable.
Furthermore, remove protective housing bottom and be located four the bracing piece positive centre is provided with the draw-bar box pull rod, the telescopic link of draw-bar box pull rod is located and keeps away from the articulated position's of protective housing lid one end, just it is close to remove protective housing the articulated position's of protective housing lid one end four apex angle departments of lateral wall are fixed with the universal wheel one by one.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model improves the portability of the movement by placing the projector box in the movable protective box, and well protects the projector box, when the projector box is operated to perform projection work, the projector box rotates by means of the seated bearing on the bottom platform plate and the connecting disc, which is convenient for the left and right angle adjustment during projection, the spring telescopic columns arranged in the holding grooves at the two sides of the bottom of the connecting disc movably fit by utilizing the hemispherical head at the bottom and a plurality of hemispherical positioning grooves at the top of the seated bearing, and each spring telescopic column continuously extends and retracts in the rotating stroke to switch different hemispherical positioning grooves to fit with each other along with the rotation of the projector box by means of external force, so as to keep the angle of the projector box fixed in real time, when the height of the projector box needs to be adjusted, the projector box can be adjusted by the two crossed lifting frames arranged between the platform plate and the movable protective box, the operation of the projector case is simplified.
The present invention will be explained in detail with reference to the drawings and specific embodiments.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the seated bearing and the connecting plate of the present invention;
FIG. 3 is a cross-sectional view of the self-locking structure for the rotation of the seated bearing and the connecting disc of the present invention;
FIG. 4 is a plan view of the upright structure of the mobile protective case of the present invention;
fig. 5 is an enlarged view of region a in fig. 1.
In the figure: 1. a projector case; 2. moving the protective box; 2a, a first chute; 21. a protective case cover; 22. an accessory resting slot; 23. a support bar; 23a, a foot pad; 24. a draw bar of the draw-bar box; 25. a universal wheel; 3. a cross lifting frame; 31. a butterfly nut; 4. a platform plate; 4a, a second chute; 5. a pedestal bearing; 5a, a hemispherical positioning groove; 6. a connecting disc; 6a, a storage groove; 61. a single-hole connecting sheet; 62. a spring telescopic column; 62a, a ring-shaped baffle.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to the attached drawings 1-3, a portable projection device for educational training comprises a projector box 1 and a movable protective box 2, wherein two groups of first sliding chutes 2a are symmetrically arranged on the inner walls of two sides of the movable protective box 2, each group is provided with two, cross lifting frames 3 are respectively connected in the two groups of first sliding chutes 2a in a sliding manner, a platform plate 4 is arranged at the top of the two cross lifting frames 3, a groove body is arranged at the bottom of the platform plate 4, two groups of second sliding chutes 4a are symmetrically arranged on the groove walls of two sides of the groove body, each group is provided with two, the two groups of second sliding chutes 4a are respectively connected with the two cross lifting frames 3 in a sliding manner, a bearing with a seat 5 is fixed at the center of the top of the platform plate 4 through bolts, a connecting plate 6 is rotatably connected on the bearing with a connecting plate 5, four single-hole, every haplopore connection piece 61 all through the screw with 1 bottom plate of projector box is fixed mutually, just the pedestal top surface of taking pedestal bearing 5 encircles along edge equidistance and is provided with several hemisphere constant head tank 5a, 6 bottom bilateral symmetry of connection pad are provided with accomodates groove 6a, every accomodate and all install the flexible post 62 of spring in the groove 6a perpendicularly, every the flexible post 62 bottom of spring is the hemisphere and agrees with every hemisphere constant head tank 5a activity one by one.
Referring to fig. 5, the crossing position of each crossing crane 3 is rotatably connected by a bolt passing through the rod body, and the nut of the bolt is a butterfly nut 31. In this embodiment, each cross crane 3 can be fastened or loosened by the wing nut 31, and when lifting is required, the rod body of each cross crane 3 can be rotated in a cross manner after the wing nut 31 is loosened, and the wing nut 31 can be screwed up to be fixed after reaching a proper height.
Referring to fig. 3, an annular stop piece 62a is welded to each of the spring telescopic columns 62 at the outer portion of the receiving groove 6 a. In this embodiment, when each spring telescopic column 62 is extended and retracted up and down, the swinging direction of the spring telescopic columns can be limited by the ring-shaped blocking pieces 62 a.
Referring to fig. 1, one side of the movable protective box 2 is hinged with a protective box cover 21 matched with the movable protective box, an accessory placing groove 22 is arranged at the lower end of the horizontal plane of the two first sliding grooves 2a at the bottom of the movable protective box 2, supporting rods 23 are rotatably connected to four top corners at the bottom of the movable protective box 2 one by one through knob type limiting screws, foot pads 23a are vertically fixed at the bottom of the other end of each supporting rod 23, and each foot pad 23a is a disc-shaped rubber non-slip mat or a silica gel sucker and is detachable. In this embodiment, can take out projector box 1 through opening protective case lid 21, after carrying out the lifting operation with projector box 1, can take accessories such as power cord in accessory shelving groove 22 of lower extreme, perfect projection work, when carrying out the projection, can outwards disperse rotatory one side to four bracing pieces 23 that remove protective case 2 bottom, then adorn callus on the sole 23a and carry out stable support to whole equipment, can carry out the adaptation according to the condition of bottom bearing surface to the selection of cushion 23a, comparatively glossy holding surface, like the glass platform, can use the silica gel sucking disc as cushion 23a, prevent the removal that removes protective case 2 after keeping the actuation, and other ordinary type holding surfaces, like ground or desk, can use disc rubber slipmat to contact, have skid-proof effect.
Referring to fig. 4, a draw-bar box pull rod 24 is arranged at the bottom of the movable protective box 2 in the middle of the four support rods 23, a telescopic rod of the draw-bar box pull rod 24 is arranged at one end far away from the hinged part of the protective box cover 21, and universal wheels 25 are fixed at four top corners of the side wall of the movable protective box 2 close to the hinged part of the protective box cover 21 one by one. In the embodiment, when the projector case 1 is placed in the movable protection box 2 for moving, the draw-bar box draw bar 24 and the four universal wheels 25 can be used for dragging on the ground in addition to the hand-held operation, so that the operation is quick and labor-saving.
The utility model discloses a concrete operation as follows:
firstly, a movable protection box 2 is placed on a specified projection table, then a protection box cover 21 is opened, a projector box 1 is lifted upwards, cross lifting frames 3 at two sides of the bottom are kept to slide between two groups of first sliding grooves 2a in the movable protection box 2 and two groups of second sliding grooves 4a at the bottom of a platform plate 4, the projector box 1 is kept supported in real time, butterfly nuts 31 at the cross positions of the two cross lifting frames 3 are respectively screwed after reaching a proper height, the two cross lifting frames 3 are kept fastened, required accessories are taken out from an accessory placing groove 22 to be installed and connected, the projector box 1 is opened for projection after completion, when a projection angle is deviated, the projector box 1 can be directly rotated to rotate, when the connection disc 6 at the bottom of the projector box 1 rotates, the connection disc 6 fixed on the platform plate 4 synchronously rotates, and the spring telescopic columns 62 arranged in the containing grooves 6a at two sides of the bottom of the connection disc 6 are utilized for up-and down telescopic movement, make the hemisphere head of the flexible post 62 bottom of every spring and the several hemisphere constant head tank 5a at 5 tops of rolling bearing constantly switch and agree with, keep fixed of 1 angle of projector box in real time, finish until angular adjustment, carry out normal projection can, after projection work is accomplished, withdraw in order accessory and projector box 1 and put back in the removal protective housing 2 and close protective housing lid 21 and lock well, will remove the one side that is equipped with four universal wheels 25 on the protective housing 2 at last and place subaerial, pull out the pull rod case pull rod 24 manually and pull the line and remove.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.
Claims (7)
1. The portable projection device for education training is characterized by comprising a projector box (1) and a movable protective box (2), wherein two groups of first sliding grooves (2a) are symmetrically arranged on the inner walls of two sides of the movable protective box (2), each group is provided with two groups, two groups of cross lifting frames (3) are respectively and slidably connected in the first sliding grooves (2a), two groups of cross lifting frames (3) are provided with platform plates (4) at the tops, the bottoms of the platform plates (4) are provided with groove bodies, two groups of second sliding grooves (4a) are symmetrically arranged on the groove walls of two sides of each groove body, each group is provided with two groups, two groups of the second sliding grooves (4a) are respectively and slidably connected with the two cross lifting frames (3), the center of the top of each platform plate (4) is fixed with a bearing (5) through bolts, and a connecting disc (6) is rotatably connected on the bearing (5), equal partition cast joint has four haplopore connection pieces (61), every on connection pad (6) circumference wall haplopore connection piece (61) all through the screw with projector box (1) bottom plate is fixed mutually, just the pedestal top surface of taking seat bearing (5) encircles along the edge equidistance and is provided with several hemisphere constant head tank (5a), connection pad (6) bottom bilateral symmetry is provided with accomodates groove (6a), every accomodate and all install spring telescopic column (62) perpendicularly in groove (6a), every spring telescopic column (62) bottom is the hemisphere and is the activity with every hemisphere constant head tank (5a) one by one and agrees with.
2. A portable projection device for educational training as claimed in claim 1 wherein the crossing position of each crossing crane (3) is rotatably connected through the rod body by a bolt, and the nut of the bolt is a wing nut (31).
3. The portable projection device for educational training as set forth in claim 1, wherein an annular stopper (62a) is welded to each of the spring telescopic columns (62) at the outside of the receiving groove (6 a).
4. The portable projection device for educational training according to claim 1, wherein a matching protective box cover (21) is hinged on one side of the movable protective box (2), and an accessory placing groove (22) is arranged at the lower end of the bottom in the movable protective box (2) at the level of the two sets of the first sliding grooves (2 a).
5. The portable projection device for educational training as claimed in claim 4, wherein the movable protective box (2) is rotatably connected with support rods (23) at four corners of the bottom through knob type limit screws one by one, and a foot pad (23a) is vertically fixed at the bottom of the other end of each support rod (23).
6. A portable projection device for educational training according to claim 5, wherein each of the foot pads (23a) is a disc-shaped rubber non-slip pad, or a silicone suction cup, and is detachable.
7. The portable projection device for educational training according to claim 5, wherein a draw-bar box pull rod (24) is arranged at the center of the four support rods (23) at the bottom of the movable protective box (2), the telescopic rod of the draw-bar box pull rod (24) is located at one end far away from the hinged part of the protective box cover (21), and universal wheels (25) are fixed at four top corners of the side wall of the movable protective box (2) close to the hinged part of the protective box cover (21) one end one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020059245.2U CN211289355U (en) | 2020-01-10 | 2020-01-10 | Portable projection device for education and training |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020059245.2U CN211289355U (en) | 2020-01-10 | 2020-01-10 | Portable projection device for education and training |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211289355U true CN211289355U (en) | 2020-08-18 |
Family
ID=72014217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020059245.2U Expired - Fee Related CN211289355U (en) | 2020-01-10 | 2020-01-10 | Portable projection device for education and training |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211289355U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113208315A (en) * | 2021-05-13 | 2021-08-06 | 新乡学院 | Multifunctional portable learning device based on education and using method thereof |
| CN113280224A (en) * | 2021-06-18 | 2021-08-20 | 东营正大金属制品有限公司 | Marketing scheme intention excitation device |
| CN114114798A (en) * | 2020-08-27 | 2022-03-01 | 靖州苗族侗族自治县启凡科技电子商务有限公司 | Multifunctional projection display device for electronic commerce conference communication |
| CN114811367A (en) * | 2022-03-30 | 2022-07-29 | 中交二公局第三工程有限公司 | Survey and drawing laying-out device based on BIM |
-
2020
- 2020-01-10 CN CN202020059245.2U patent/CN211289355U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114114798A (en) * | 2020-08-27 | 2022-03-01 | 靖州苗族侗族自治县启凡科技电子商务有限公司 | Multifunctional projection display device for electronic commerce conference communication |
| CN113208315A (en) * | 2021-05-13 | 2021-08-06 | 新乡学院 | Multifunctional portable learning device based on education and using method thereof |
| CN113280224A (en) * | 2021-06-18 | 2021-08-20 | 东营正大金属制品有限公司 | Marketing scheme intention excitation device |
| CN114811367A (en) * | 2022-03-30 | 2022-07-29 | 中交二公局第三工程有限公司 | Survey and drawing laying-out device based on BIM |
| CN114811367B (en) * | 2022-03-30 | 2023-05-02 | 中交二公局第三工程有限公司 | Mapping lofting device based on BIM |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 Termination date: 20210110 |