CN213686025U

CN213686025U - Teaching geometry projection arrangement

Info

Publication number: CN213686025U
Application number: CN202022545392.3U
Authority: CN
Inventors: 钱德周
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-13
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a teaching geometry projection arrangement, including the projection arrangement main part, the spout has all been seted up to both sides about the projection arrangement main part, all the cover is equipped with the slider in the spout, and is two sets of the slider deviates from one end mutually and all is fixed with the baffle, slider right-hand member outer wall all forms elastic connection through first spring and spout inner wall, first movable storehouse has been seted up on projection arrangement main part upper end right side, first movable storehouse endotheca is equipped with the movable block, the movable block left end is fixed with first stopper, the movable block bottom forms elastic connection through reed and first movable storehouse. Through mutually supporting of the spout, slider, baffle, first spring, first movable bin, movable block, first stopper, reed and the first spacing groove that set up, avoided external projection mouth when idle, probably have debris to get into the projection mouth, cause wearing and tearing to the intraoral lens of projection, lead to the problem that the lens damaged.

Description

Teaching geometry projection arrangement

Technical Field

The utility model relates to a projection arrangement technical field especially relates to a teaching geometry projection arrangement.

Background

The teaching projector is also called a micro projector, a teacher projector, a palm projector and a TRT-3M portable projector, and the traditional huge projector is exquisite, portable, miniaturized, entertaining and practical mainly through a 3M LCOS RGB three-color projection optical machine and a 720P film decoding technology, and the existing teaching geometric projection device can basically meet daily use requirements, but still has some defects to be improved.

However, most of projection ports of the existing teaching geometric projection device are external, and are used for rapidly putting in images, but the external projection ports are idle, so that sundries can enter the projection ports, and the lenses in the projection ports are abraded, so that the lenses are damaged, and therefore the teaching geometric projection device is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a teaching geometry projection arrangement, through mutually supporting of the spout, slider, baffle, first spring, first movable bin, movable block, first stopper, reed and the first spacing groove that set up, avoided external projection mouth when idle, probably have debris and get into the projection mouth, cause wearing and tearing to the intraoral lens of projection, lead to the problem that the lens damaged.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a teaching geometry projection arrangement, includes the projection arrangement main part, the spout has all been seted up to both sides about the projection arrangement main part, all the cover is equipped with the slider in the spout, and is two sets of the slider deviates from one end mutually and all is fixed with the baffle, slider right-hand member outer wall all forms elastic connection through first spring and spout inner wall, first movable bin has been seted up on projection arrangement main part upper end right side, first movable bin endotheca is equipped with the movable block, movable block left end is fixed with first stopper, the movable block bottom forms elastic connection through reed and first movable bin, upper end first spacing groove has been seted up to the slider lower extreme, first stopper upper end cover inlays in first spacing inslot.

As a preferred technical scheme of the utility model, projection arrangement main part both sides have all been seted up the second movable bin, all be connected with the solid fixed cylinder through the pivot in the second movable bin, gu fixed cylinder outer wall lower extreme all is fixed with unable adjustment base, and is two sets of the relative one end in second movable bin all is fixed with the locating lever, and is two sets of the locating lever deviates from one end and all is fixed with the second stopper mutually, gu all overlap in the fixed cylinder is equipped with and presses the piece, and is two sets of press the relative one end of piece and all seted up the second spacing groove, the second stopper all imbeds the second spacing inslot, and is two sets of press the relative one end of piece and all form elastic connection through second spring and second movable bin inner wall, the second movable bin inner wall all welds there is the fixture block, and is two sets of press the relative one end outer wall of piece and all be.

As an optimized technical scheme of the utility model, first stopper upper end is the design of slope form.

As an optimal technical scheme of the utility model, the width size of slider is the same with the width size of spout, the slider becomes sliding connection with the spout.

As an optimal technical scheme of the utility model, the second stopper side cross-section is the ring form design, the spacing groove side cross-section of second is the ring form design corresponding with the second stopper.

As a preferred technical scheme of the utility model, the fixture block specification is the same with the draw-in groove specification, fixture block and draw-in groove intermeshing.

As an optimal technical scheme of the utility model, the movable distance size of pressing the piece is greater than the width size of fixture block.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. through the mutual matching of the arranged sliding chute, the sliding block, the baffle, the first spring, the first movable bin, the movable block, the first limiting block, the reed and the first limiting groove, the baffle can move to a projection opening on the projection device main body under the pushing of the two groups of first springs, the protection effect on the projection opening on the projection device main body is completed, the problem that sundries possibly enter the projection opening when the external projection opening is idle, the lens in the projection opening is abraded, and the lens is damaged is solved, and the practicability of the device is improved;

2. through the second movable bin, a fixed cylinder, a fixed base, a positioning rod, a second limiting block, a pressing block, a second limiting groove, a second spring, a clamping block and a clamping groove which are arranged, the projection device main body can quickly adjust the angle and lock the angle, the complex operation is avoided, and the convenience of the device is effectively improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic front view of the cross-sectional structure of the present invention;

fig. 3 is a schematic view of a rear view cross-sectional structure of the present invention;

FIG. 4 is a schematic view of a partial side view of the pressing block of the present invention;

fig. 5 is an enlarged view of a in fig. 2 according to the present invention;

fig. 6 is an enlarged view of B in fig. 3 according to the present invention;

wherein: 1. a projection apparatus main body; 2. a chute; 3. a slider; 4. a baffle plate; 5. a first spring; 6. a first movable bin; 7. a movable block; 8. a first stopper; 9. a reed; 10. a first limit groove; 11. a second movable bin; 12. a fixed cylinder; 13. a fixed base; 14. positioning a rod; 15. a second limiting block; 16. pressing the block; 17. a second limit groove; 18. a second spring; 19. a clamping block; 20. a clamping groove.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-6, a teaching geometry projection device comprises a projection device main body 1, chutes 2 are formed in the upper side and the lower side of the projection device main body 1, sliders 3 are sleeved in the chutes 2, a baffle 4 is fixed at the opposite ends of the two sliders 3, the outer wall of the right end of each slider 3 is elastically connected with the inner wall of the chute 2 through a first spring 5, a first movable bin 6 is formed on the right side of the upper end of the projection device main body 1, a movable block 7 is sleeved in the first movable bin 6, a first limit block 8 is fixed at the left end of the movable block 7, the bottom end of the movable block 7 is elastically connected with the first movable bin 6 through a reed 9, a first limit groove 10 is formed at the lower end of the upper end slider 3, and the upper end of the first limit block 8 is sleeved in the;

during the use, through pressing movable block 7 downwards, make movable block 7 drive first stopper 8 along the downstream of first activity storehouse 6, the power is held in the shrink of first activity storehouse 6, leave first spacing inslot 10 inside completely as first stopper 8, first stopper 8 removes the limiting displacement to slider 3 this moment, two sets of sliders 3 drive baffle 4 under the spring action of first spring 5 and slide along spout 2 left ends this moment, thereby make baffle 4 form the protection to the projection mouth on the projection arrangement main part 1, avoided external projection mouth when idle, probably have debris to get into the projection mouth, cause wearing and tearing to the intraoral lens of projection, lead to the problem of lens damage, the practicality of device has been improved.

In other embodiments, the two sides of the projection apparatus main body 1 are both provided with second movable bins 11, the second movable bins 11 are connected with the fixed cylinder 12 through a rotating shaft, the lower end of the outer wall of the fixed cylinder 12 is both fixed with a fixed base 13, the opposite ends of the two groups of second movable bins 11 are both fixed with positioning rods 14, the opposite ends of the two groups of positioning rods 14 are both fixed with second limiting blocks 15, the fixed cylinder 12 is both sleeved with pressing blocks 16, the opposite ends of the two groups of pressing blocks 16 are both provided with second limiting grooves 17, the second limiting blocks 15 are both embedded into the second limiting grooves 17, the opposite ends of the two groups of pressing blocks 16 are both elastically connected with the inner wall of the second movable bins 11 through second springs 18, the inner wall of the second movable bins 11 are both welded with clamping blocks 19, and the outer wall of the opposite ends of the two groups of pressing blocks 16;

when the angle of the projection device main body 1 needs to be adjusted, two groups of pressing blocks 16 are pressed inwards, at the moment, the two groups of pressing blocks 16 move oppositely along the second movable bin 11, two groups of second springs 18 contract to store force, when two groups of clamping grooves 20 are driven by the pressing blocks 16 to completely leave the interior of the clamping block 19, the clamping grooves 20 relieve the limiting effect on the clamping block 19, at the moment, the projection device main body 1 can be rotated to a proper angle, after the angle adjustment is completed, the pressure on the two groups of pressing blocks 16 is relieved, at the moment, the two groups of second springs 18 release the elastic force to push the pressing blocks 16 to drive the clamping grooves 20 to pop out, the clamping grooves 20 are embedded into the clamping block 19 again, and therefore the clamping grooves 20 complete the limiting effect on the clamping block 19, the projection device main body 1 can adjust the angle quickly and conveniently, and the convenience of the device is improved.

In other embodiments, the upper end of the first stopper 8 is designed to be inclined;

through this design, when pulling baffle 4 to the right end, first stopper 8 can imbed the first spacing groove 10 on the slider 3 fast under the effect of slope form outward appearance this moment, accomplish the limiting displacement to slider 3 fast.

In other embodiments, the width of the sliding block 3 is the same as that of the sliding chute 2, and the sliding block 3 is in sliding connection with the sliding chute 2;

through this design, slide 2 slides along the spout when two sets of sliders 3, avoided slider 3 to produce in the motion process and rock, improved the stability of device.

In other embodiments, the side section of the second limiting block 15 is designed in a circular ring shape, and the side section of the second limiting groove 17 is designed in a circular ring shape corresponding to the second limiting block 15;

through the design, when the projection device main body 1 rotates, the second limiting block 15 can rotate along the second limiting groove 17, so that the device can be normally used.

In other embodiments, the size of the latch 19 is the same as that of the slot 20, and the latch 19 is engaged with the slot 20;

through this design, after projection arrangement main part 1 rotated arbitrary angle, guaranteed that draw-in groove 20 can normally imbed in fixture block 19 under the effect of second spring 18, accomplish the angle spacing to projection arrangement main part 1.

In other embodiments, the movable distance of the pressing block 16 is greater than the width of the fixture block 19;

through the design, when the pressing block 16 is pressed inwards, the clamping groove 20 is ensured to be capable of leaving the inside of the clamping block 19, and the limiting effect of the clamping groove 20 on the clamping block 19 is relieved.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a teaching geometry projection arrangement, includes projection arrangement main part (1), its characterized in that: both sides have all seted up spout (2) about projection arrangement main part (1), all the cover is equipped with slider (3) in spout (2), and is two sets of slider (3) all are fixed with baffle (4) from one end mutually, slider (3) right-hand member outer wall all forms elastic connection through first spring (5) and spout (2) inner wall, first activity storehouse (6) have been seted up on projection arrangement main part (1) upper end right side, first activity storehouse (6) endotheca is equipped with movable block (7), movable block (7) left end is fixed with first stopper (8), reed (9) and first activity storehouse (6) formation elastic connection are passed through to movable block (7) bottom, upper end first spacing groove (10) have been seted up to slider (3) lower extreme, inlay in first spacing groove (10) on first stopper (8).

2. A teaching geometry projection apparatus according to claim 1 and further comprising: the projection device comprises a projection device main body (1), wherein two sides of the projection device main body (1) are respectively provided with a second movable bin (11), the second movable bins (11) are connected with a fixed barrel (12) through rotating shafts, the lower end of the outer wall of the fixed barrel (12) is fixedly provided with a fixed base (13), the opposite ends of the two groups of second movable bins (11) are respectively fixedly provided with a positioning rod (14), the opposite ends of the two groups of positioning rods (14) are respectively fixedly provided with a second limiting block (15), the fixed barrel (12) is internally sleeved with a pressing block (16), the opposite ends of the two groups of pressing blocks (16) are respectively provided with a second limiting groove (17), the second limiting blocks (15) are respectively embedded into the second limiting grooves (17), the opposite ends of the two groups of pressing blocks (16) are respectively and elastically connected with the inner wall of the second movable bins (11) through second springs (18), the inner wall of the second movable bins (11) are respectively welded with a, clamping grooves (20) are fixed on the outer walls of the opposite ends of the two groups of pressing blocks (16).

3. A teaching geometry projection apparatus according to claim 1 and further comprising: the upper end of the first limiting block (8) is designed in an inclined shape.

4. A teaching geometry projection apparatus according to claim 1 and further comprising: the width of the sliding block (3) is the same as that of the sliding groove (2), and the sliding block (3) is in sliding connection with the sliding groove (2).

5. A teaching geometry projection apparatus according to claim 2 and further comprising: the side section of the second limiting block (15) is in a circular ring shape, and the side section of the second limiting groove (17) is in a circular ring shape corresponding to the second limiting block (15).

6. A teaching geometry projection apparatus according to claim 2 and further comprising: the specification of the clamping block (19) is the same as that of the clamping groove (20), and the clamping block (19) is meshed with the clamping groove (20).

7. A teaching geometry projection apparatus according to claim 2 and further comprising: the movable distance of the pressing block (16) is larger than the width of the clamping block (19).