CN210691634U

CN210691634U - Portable teaching projector

Info

Publication number: CN210691634U
Application number: CN201920607815.4U
Authority: CN
Inventors: 张静; 冯春巧; 申家锋
Original assignee: Xinxiang Vocational and Technical College
Current assignee: Xinxiang Vocational and Technical College
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-06-05
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses a portable teaching projecting apparatus, the on-line screen storage device comprises a base, the U-shaped groove has been seted up at the vertical end top of base, base horizontal end top is rotated and is connected with branch, branch is two segmentations, and rotates the connection through the bolt between two segments, one side that base horizontal end was kept away from to branch is rotated and is connected the support cover, the carousel has been cup jointed at support cover top, carousel top symmetric welding has the bracing piece. The utility model discloses in, through the angle between two sections of round pin axle fixed branch, can realize projection arrangement's high change to realized the projection of projection arrangement co-altitude, broken away from branch through the round pin axle, branch can down be folded, and the apron vertical end combines with the vertical U-shaped groove of serving of base, and the fixture block that will bend is buckled with the locating convex block and is combined realization apron and base rigidity, and manual mentions the removal that the handle realized projection arrangement, simple structure has increased the practicality of projecting apparatus.

Description

Portable teaching projector

Technical Field

The utility model relates to a projecting apparatus technical field especially relates to a portable teaching projecting apparatus.

Background

The existing projector still has some defects, firstly, the external structure of the traditional projector is fixed, so that the projector is not convenient and fast when being carried manually, and the practicability of the projector is reduced; secondly, the projecting lens of traditional projecting apparatus is fixed, when carrying out the projection of co-altitude and different angles, needs artificially to adjust fixedly to the projecting apparatus position, and the complexity when having improved the projecting apparatus and using has increased the limitation of projecting apparatus.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the portable teaching projector aims to solve the problems that a projector is not easy to carry and a projection lens is not easy to adjust.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a portable teaching projector comprises a base, wherein a U-shaped groove is formed in the top of the vertical end of the base, a supporting rod is rotatably connected to the top of the horizontal end of the base, the supporting rod is in two sections and is rotatably connected with the two sections through a bolt, one side of the supporting rod, which is far away from the horizontal end of the base, is rotatably connected with a supporting sleeve, a turntable is sleeved on the top of the supporting sleeve, supporting rods are symmetrically welded on the top of the turntable, positioning seats are welded on the top of the supporting rods, springs are symmetrically welded on the top of the positioning seats, limiting plates are fixedly connected to the tops of the springs, a U-shaped push rod is sleeved on the bottom of the positioning seats, the top of the vertical end of the U-shaped push rod is fixedly connected with a limiting plate, a pushing screw rod is sleeved on the top of the horizontal end of the, and a handle is fixedly arranged at the top of the horizontal end of the cover plate.

As a further description of the above technical solution:

through holes are symmetrically formed in the top of the positioning seat.

As a further description of the above technical solution:

the spring is sleeved on the outer side of the vertical end of the U-shaped push rod and is in sliding connection with the vertical end of the U-shaped push rod.

As a further description of the above technical solution:

the top of the horizontal end of the cover plate is symmetrically welded with positioning lugs, and the top of the vertical end of the base is welded with bending clamping blocks.

As a further description of the above technical solution:

the turntable is rotatably connected with the support sleeve.

As a further description of the above technical solution:

the handle is located at the center of the top of the cover plate.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the angle between two sections of round pin axle fixed branch, can realize projection arrangement's high change to realized the projection of projection arrangement co-altitude, broken away from branch through the round pin axle, branch can down be folded, and the apron vertical end combines with the vertical U-shaped groove of serving of base, and the fixture block that will bend is buckled with the locating convex block and is combined realization apron and base rigidity, and manual mentions the removal that the handle realized projection arrangement, simple structure has increased the practicality of projecting apparatus.

2. The utility model discloses in, can make projection arrangement take place the rotation through rotating the carousel, realize the change of projecting lens angle, do elevating movement through rotating promotion screw rod control U-shaped catch bar to realize that projecting lens reciprocates, thereby realize that projecting lens carries out the projection of co-altitude, when the promotion screw rod resumes original state, the limiting plate can guarantee the projection arrangement level under the effect of spring, has reduced the operation degree of difficulty, has increased the working range of projecting apparatus.

Drawings

Fig. 1 is a schematic structural view of a portable teaching projector according to the present invention;

fig. 2 is a schematic structural view of a projection device and a U-shaped push rod of the portable teaching projector according to the present invention;

fig. 3 is the utility model provides a base and apron structural schematic of portable teaching projecting apparatus.

Illustration of the drawings:

1. pushing the screw rod; 2. a handle; 3. a projection device; 4. positioning the bump; 5. a cover plate; 6. a through hole; 7. A support bar; 8. bending the fixture block; 9. a U-shaped groove; 10. a base; 11. a turntable; 12. a strut; 13. a support sleeve; 14. a U-shaped push rod; 15. positioning seats; 16. a spring; 17. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a portable teaching projector comprises a base 10, wherein a U-shaped groove 9 is formed in the top of the vertical end of the base 10, a supporting rod 12 is rotatably connected to the top of the horizontal end of the base 10, the supporting rod 12 is in two sections and is rotatably connected with the two sections through a bolt, one side of the supporting rod 12, which is far away from the horizontal end of the base 10, is rotatably connected with a supporting sleeve 13, a turntable 11 is sleeved on the top of the supporting sleeve 13, a supporting rod 7 is symmetrically welded on the top of the turntable 11, a positioning seat 15 is welded on the top of the supporting rod 7, a spring 16 is symmetrically welded on the top of the positioning seat 15, a limiting plate 17 is fixedly connected to the top of the spring 16, the position of a projection device 3 is ensured to be stable through the limiting plate 17, a U-shaped push rod 14 is sleeved on the bottom of the positioning seat 15, the top of, make U-shaped push rod 14 can not take place to rotate, guaranteed that promotion screw rod 1 can not break away from positioning seat 15, promotion screw rod 1 closes soon through screw thread and positioning seat 15 to be connected, limiting plate 17 top fixed mounting has

projection arrangement

3, 3 top fixed mounting of projection arrangement has apron 5, 5 horizontal end top fixed mounting of apron has handle 2, realizes projection arrangement 3's removal through handheld handle 2.

Specifically, as shown in fig. 1, through holes 6 are symmetrically formed in the top of the positioning seat 15, and the U-shaped push rod 14 is slidably connected with the positioning seat 15 through the through holes 6.

Specifically, as shown in fig. 2, the spring 16 is sleeved outside the vertical end of the U-shaped push rod 14, and the spring 16 is slidably connected to the vertical end of the U-shaped push rod 14, so that the projection device 3 can only deviate up and down.

Specifically, as shown in fig. 1, the positioning convex blocks 4 are symmetrically welded on the top of the horizontal end of the cover plate 5, the bending fixture blocks 8 are welded on the top of the vertical end of the base 10, and the cover plate 5 and the base 10 are fixed in position through the buckling combination of the bending fixture blocks 8 and the positioning convex blocks.

Specifically, as shown in fig. 2, the rotary plate 11 is rotatably connected to the support sleeve 13, so that the support sleeve 13 cannot rotate when the rotary plate 11 rotates.

Specifically, as shown in fig. 3, the handle 2 is located at the center of the top of the cover plate 5, so that the cover plate 5 is uniformly stressed, and the stability of the projection device 3 during movement is ensured.

The working principle is as follows: when the projection lens adjusting device is used, the base 10 is horizontally placed on a workbench, the angle between two sections of the supporting rod 12 is fixed by the pin shaft, the height of the projection device 3 is controlled, the turntable 11 is rotated, the turntable 11 drives the positioning seat 15 to rotate through the supporting rod 7, the positioning seat 15 drives the projection device 3 to rotate through the spring 16, the angle of the projection lens is changed, the screw rod 1 is pushed to move downwards by manual rotation, the screw rod 1 is pushed to move downwards by the pushing screw rod 1, the limiting plate 17 is pulled downwards by the vertical end of the U-shaped push rod 14 to move downwards, the limiting plate 17 is pushed upwards by the vertical end of the U-shaped push rod 14, the projection device 3 is pushed to move upwards by the limiting plate 17 when the spring 16 is stretched upwards, the projection lens moves upwards by manual rotation, the pushing screw rod 1 is screwed to the original state, the limiting plate 17 keeps the position of the projection device horizontal under the action of the spring 16, the projection lens is horizontal, the pin shaft is separated from the supporting rod 12, the supporting rod 12 is folded downwards to drive the supporting sleeve 13 to move downwards, the vertical end of the cover plate 5 is combined with the U-shaped groove 9, the bending clamping block 8 and the positioning lug 4 are fixed in a buckling mode manually, and the handle 2 is lifted manually to achieve movement of the projection device 3.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A portable teaching projector comprises a base (10) and is characterized in that a U-shaped groove (9) is formed in the top of the vertical end of the base (10), a supporting rod (12) is rotatably connected to the top of the horizontal end of the base (10), the supporting rod (12) is in two-section type and is rotatably connected with the two sections through a bolt, one side, far away from the horizontal end of the base (10), of the supporting rod (12) is rotatably connected with a supporting sleeve (13), a rotary disc (11) is sleeved on the top of the supporting sleeve (13), supporting rods (7) are symmetrically welded on the top of the rotary disc (11), a positioning seat (15) is welded on the top of the supporting rod (7), a spring (16) is symmetrically welded on the top of the positioning seat (15), a limiting plate (17) is fixedly connected to the top of the spring (16), a U-shaped push rod (14) is sleeved on the bottom of the positioning seat (15, u-shaped push rod (14) horizontal end top has cup jointed promotion screw rod (1), promotion screw rod (1) closes soon through screw thread and positioning seat (15) and is connected, limiting plate (17) top fixed mounting has projection arrangement (3), projection arrangement (3) top fixed mounting has apron (5), apron (5) horizontal end top fixed mounting has handle (2).

2. The portable teaching projector according to claim 1, wherein the top of the positioning seat (15) is symmetrically provided with through holes (6).

3. The portable teaching projector according to claim 1, wherein the spring (16) is sleeved outside the vertical end of the U-shaped push rod (14), and the spring (16) is connected with the vertical end of the U-shaped push rod (14) in a sliding manner.

4. The portable teaching projector as claimed in claim 1, wherein the positioning projection (4) is symmetrically welded on the top of the horizontal end of the cover plate (5), and the bending fixture block (8) is welded on the top of the vertical end of the base (10).

5. A portable educational projector in accordance with claim 1, wherein the turntable (11) is rotatably connected to a support sleeve (13).

6. A portable educational projector in accordance with claim 1, wherein the handle (2) is located at the top center of the cover plate (5).