CN210600770U

CN210600770U - Projection arrangement of teaching usefulness

Info

Publication number: CN210600770U
Application number: CN201921314551.XU
Authority: CN
Inventors: 张洪涛
Original assignee: Shenzhen Litian Century Education Equipment Co ltd
Current assignee: Shenzhen Litian Century Education Equipment Co ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-05-22
Anticipated expiration: 2029-08-12

Abstract

The utility model discloses a projection arrangement that teaching was used, the slide rail device comprises a supporting rod, be connected through the pivot between the middle part of bracing piece, and the lower extreme outside of bracing piece is connected with the stay tube to the nested antiskid cover that has in the lower extreme outside of stay tube, the last end hub connection of bracing piece is in the lower extreme of dead lever, and the dead lever connects between the spout, the spout sets up in the inboard of braced frame board, and the inboard of braced frame board is provided with the support slat, the support slat sets up in the spout below, and supports and install the projecting apparatus between the slat, the last surface connection who supports between the slat setting has splint, and the side of splint is connected with first twisted pipe through twisted bar. This projection arrangement of teaching usefulness can not only be convenient for press from both sides tight fixedly to the projecting apparatus, and can guarantee through the gravity of projecting apparatus that the device carries out stable clamp to it and fixes to can be convenient for be applicable to the projecting apparatus that the projecting head is in different positions.

Description

Projection arrangement of teaching usefulness

Technical Field

The utility model relates to a relevant technical field of teaching specifically is a projection arrangement of teaching usefulness.

Background

In the teaching process, the electronic courseware is needed to be used for teaching, the electronic courseware can be conveniently and clearly seen by students in a classroom, a projector is needed to be used, the electronic courseware can be conveniently projected on a curtain in the classroom, so that the students in the classroom can all see clearly, and the projection device for teaching is a device convenient for mounting the projector.

However, the conventional projector for teaching is inconvenient to stably fix the projector, because the conventional projector for teaching is directly placed on the upper surface of the device when the projector is installed, and is easily touched by a student and dropped in the using process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projection arrangement of teaching usefulness to the problem of the stable fixed projecting apparatus of not being convenient for of the projection arrangement who provides current teaching usefulness in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a projection device for teaching comprises a supporting rod, wherein the middle parts of the supporting rod are connected through a rotating shaft, the outer side of the lower end of the supporting rod is connected with a supporting tube, the outer side of the lower end of the supporting tube is nested with an anti-skidding sleeve, the upper end of the supporting rod is connected with the lower end of a fixing rod through a shaft, the fixing rod is connected between sliding grooves, the sliding grooves are arranged on the inner side of a supporting frame plate, supporting strips are arranged on the inner side of the supporting frame plate and are arranged below the sliding grooves, a projector is arranged between the supporting strips, the upper surface between the supporting strips is connected with clamping plates, the side surfaces of the clamping plates are connected with a first twist pipe through twist rods, an outer side bearing of the first twist pipe is connected with the upper surface of a supporting plate, the supporting plate is arranged on the lower surface of the supporting frame plate, notches are arranged on the front side surface and the rear side surface, and the second twist pipe is connected to the fixing rod.

Preferably, the outer side of the lower end of the support rod is connected with the inner side of the upper end of the support tube in a threaded connection mode, and 2 support rods form an X-shaped structure through a rotating shaft.

Preferably, the structure shape of splint is "L" shape, and the equidistant even distribution of splint has the ramie pole to splint and ramie pole are integrated structure.

Preferably, the outer side of the twist rod is connected with the inner side of the first twist pipe in a threaded connection mode, and the outer side of the first twist pipe is connected with the inner side of the second twist pipe in a threaded connection mode.

Preferably, the fixing rod is evenly provided with second twist pipes at equal intervals, and the fixing rod and the second twist pipes are arranged in an integrated structure.

Compared with the prior art, the beneficial effects of the utility model are that: this projection arrangement of teaching usefulness can not only be convenient for press from both sides tight fixedly to the projecting apparatus, and can pass through the gravity of projecting apparatus, guarantees that the device carries out stable clamp to it and fixes to can be convenient for be applicable to the projecting apparatus that the projecting head is in different positions:

1. the distance between the lower ends of the 2 support rods on the same side can be gradually kept away by the gravity of the projector, and the fixing rods are further kept away from each other, so that the second twist pipe is kept away from the first twist pipe connected with the second twist pipe, the first twist pipe is driven to rotate, the twist pipe connected with the first twist pipe moves along the axis of the twist pipe, and the 2 clamping plates are driven to be close to each other, so that the projector can be conveniently clamped and fixed, and the gravity of the projector is relied on by the clamping power of the device, so that the projector can be conveniently and stably clamped and fixed;

2. through the setting of notch, can make the projecting head homoenergetic of different positions place to make the device can be convenient for be applicable to the projecting apparatus that the projecting head is in different positions.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the connection structure of the fixing rod and the supporting frame plate of the present invention.

In the figure: 1. a support bar; 2. a rotating shaft; 3. supporting a tube; 4. an anti-slip sleeve; 5. supporting the frame plate; 6. a recess; 7. supporting the ribbon board; 8. a splint; 9. a twisted rod; 10. a first twist tube; 11. a support plate; 12. a second twist tube; 13. fixing the rod; 14. a chute; 15. a projector.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a projection device for teaching comprises a support rod 1, the middle parts of the support rods 1 are connected through a rotating shaft 2, the outer side of the lower end of the support rod 1 is connected with a support tube 3, the outer side of the lower end of the support tube 3 is nested with an anti-skidding sleeve 4, the upper end shaft of the support rod 1 is connected with the lower end of a fixed rod 13, the fixed rod 13 is connected between sliding chutes 14, the sliding chutes 14 are arranged on the inner side of a support frame plate 5, the inner side of the support frame plate 5 is provided with support strip plates 7, the support strip plates 7 are arranged below the sliding chutes 14, a projector 15 is arranged between the support strip plates 7, the upper surface between the support strip plates 7 is connected with a clamp plate 8, the side surface of the clamp plate 8 is connected with a first twist tube 10 through a twist rod 9, the outer side bearing of the first twist tube 10 is connected with the upper surface of a support plate 11, the support plate 11 is, the outer side of the first twist pipe 10 is connected with a second twist pipe 12, and the second twist pipe 12 is connected to a fixing rod 13.

The lower extreme outside of bracing piece 1 adopts threaded connection's mode to be connected with the upper end inboard of

stay tube

3, and 2 bracing pieces 1 constitute "X" shape structure through pivot 2, can be convenient for through 2 "X" shape structures that 4 bracing pieces 1 constitute, guarantee the stable support projecting apparatus 15 of the device.

The structural shape of splint 8 is "L" shape, and the even distribution of equidistant has twist rod 9 on splint 8 to splint 8 and twist rod 9 are the integral structure, and equidistant even second twist tube 12 that is provided with on dead lever 13, and dead lever 13 and second twist tube 12 set up for the integral structure, can be convenient for guarantee that splint 8 is stable is close to each other, so that press from both sides tight fixed projecting apparatus 15.

The outside of twist pole 9 adopts threaded connection's mode to be connected with the inboard of first twist pipe 10, and the outside of first twist pipe 10 adopts threaded connection's mode to be connected with the inboard of second twist pipe 12, can drive first twist pipe 10 through the removal of second twist pipe 12 and rotate, and then makes twist pole 9 move along its axis.

The working principle is as follows: firstly, taking the projection device for teaching to a use position, rotating the support rod 1 through the rotating shaft 2 according to figure 1 to enable the height of the support frame plate 5 to be increased, placing the lower ends of the front side and the rear side of the projector 15 between the support strip plates 7 on the support frame plate 5 according to figures 2 and 3, enabling the projection head of the projector 15 to be positioned in the notch 6, enabling the support frame plate 5 to move downwards due to the weight of the projector 15, and gradually increasing the distance between the lower ends of the support rods 1 on the same side 2 so as to further gradually increase the distance between the fixing rods 13;

the fixing rod 13 drives the second twist pipe 12 to stably move so that the first twist pipe 10 rotates, and the twist rods 9 move along the axis of the first twist pipe 10 through the rotation of the first twist pipe so that the clamping plates 8 approach each other, so that the lower ends of the left side and the right side of the projector 15 are supported, and the projector 15 is fixed;

referring again to fig. 1, the height of the apparatus is adjusted by rotating the support tube 3 so that the height of the projector 15 can reach the height of use, and the anti-slip cover 4 at the lower end of the support tube 3 prevents the apparatus from slipping during use so as to ensure stable use of the apparatus, which is not described in detail in this specification, is well known to those skilled in the art.

It is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a projection arrangement of teaching usefulness, includes bracing piece (1), its characterized in that: the middle parts of the support rods (1) are connected through a rotating shaft (2), the outer sides of the lower ends of the support rods (1) are connected with support tubes (3), anti-skidding sleeves (4) are nested on the outer sides of the lower ends of the support tubes (3), the upper end shafts of the support rods (1) are connected to the lower ends of fixing rods (13), the fixing rods (13) are connected between sliding grooves (14), the sliding grooves (14) are formed in the inner sides of support frame plates (5), support strip plates (7) are arranged on the inner sides of the support frame plates (5), the support strip plates (7) are arranged below the sliding grooves (14), projectors (15) are arranged between the support strip plates (7), clamping plates (8) are connected to the upper surfaces of the support strip plates (7), the side surfaces of the clamping plates (8) are connected with first twist tubes (10) through twist rods (9), and outer side bearings of the first twist tubes (10) are connected to the upper surfaces of the support plates (11), and the supporting plate (11) is arranged on the lower surface of the supporting frame plate (5), notches (6) are arranged on the front side and the rear side of the supporting frame plate (5), the outer side of the first twist pipe (10) is connected with a second twist pipe (12), and the second twist pipe (12) is connected onto the fixing rod (13).

2. A teaching projection device according to claim 1, wherein: the outer side of the lower end of each supporting rod (1) is connected with the inner side of the upper end of each supporting tube (3) in a threaded connection mode, and 2 supporting rods (1) form an X-shaped structure through rotating shafts (2).

3. A teaching projection device according to claim 1, wherein: the structure shape of splint (8) is "L" shape, and splint (8) equidistant even distribution have twist rod (9) to splint (8) and twist rod (9) are integrated structure.

4. A teaching projection device according to claim 1, wherein: the outer side of the twist rod (9) is connected with the inner side of the first twist pipe (10) in a threaded connection mode, and the outer side of the first twist pipe (10) is connected with the inner side of the second twist pipe (12) in a threaded connection mode.

5. A teaching projection device according to claim 1, wherein: the fixing rod (13) is uniformly provided with second twist pipes (12) at equal intervals, and the fixing rod (13) and the second twist pipes (12) are arranged in an integrated structure.