CN214428114U

CN214428114U - Projecting apparatus is used in education and teaching speech

Info

Publication number: CN214428114U
Application number: CN202120905553.7U
Authority: CN
Inventors: 陈豫岚
Original assignee: Guangzhou College of Technology and Business
Current assignee: Guangzhou College of Technology and Business
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-10-19
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a projecting apparatus is used in education and teaching speech belongs to education equipment technical field. The utility model provides a projecting apparatus for education and teaching speech, includes the base, base top surface middle part fixedly connected with dead lever, sliding connection has the movable rod in the dead lever upper portion, and the movable rod upper end articulates there is the free bearing, and free bearing lower part antetheca is equipped with the driving lever, and the driving lever upper end is rotated and is connected with square pole, and square pole rear end is worn into in the free bearing and fixedly connected with face gear A, free bearing top surface fixedly connected with bottom plate, and the projecting apparatus is installed to the bottom plate top surface, and bottom plate top surface right-hand member is equipped with the beam line mechanism. The utility model discloses a to rotate the driving lever, face gear A and the cancellation of face gear B joint for the projecting apparatus of being connected with the bottom plate can carry out the adjustment of every single move angle, through being connected the convenience with the base and use the device flow, compact structure, it is easy and simple to handle.

Description

Projecting apparatus is used in education and teaching speech

Technical Field

The utility model relates to an education equipment technical field, more specifically say, relate to a projecting apparatus is used in education and teaching speech.

Background

The speech, also called as lecture or speech, is a kind of language communication activities in public places, which uses vocal language as the main means and physical language as the auxiliary means, to clearly and completely release own insights and advices, clarify affairs or express emotions, and promote and inspire. Education and teaching lectures refer to an activity in which teachers or students in schools compete lectures and publicize education knowledge. Education teaching speech can not leave the projecting apparatus as appurtenance, patent document with prior art publication number CN212776320U provides an education teaching is projector for speech, the device is provided with the carousel through the below at first motor, can rotate the projecting apparatus, do not need the manual work to move and throw different position, be provided with first electronic slide rail through the surface at first backup pad, can reciprocate the regulation to the projecting apparatus, be provided with the electronic slide rail of second through the surface at the second backup pad, can remove the regulation about the projecting apparatus.

Although the device has more beneficial effects, the following problems still exist: the device can only be fixed and use indoor, because the place of education and teaching speech has mobile nature, the device use scene is restricted, if all install the projecting apparatus in whole classrooms, then drop into big too big, inconvenient use. In view of this, we propose a projector for educational and teaching lectures.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide a projecting apparatus is used in education and teaching speech to solve the problem that proposes in the above-mentioned background art.

2. Technical scheme

The utility model provides a projecting apparatus for education and teaching speech, includes the base, the equal fixedly connected with universal wheel of base bottom surface edge, base top surface middle part fixedly connected with dead lever, sliding connection has the movable rod in the dead lever upper portion, the movable rod upper end articulates there is the free bearing, free bearing lower part antetheca is equipped with the driving lever, the driving lever upper end is rotated and is connected with square pole, square pole rear end is worn into in the free bearing and fixedly connected with face gear A, face gear A antetheca fixedly connected with spring, the spring front end is connected fixedly with the free bearing, free bearing top surface fixedly connected with bottom plate, the projecting apparatus is installed to the bottom plate top surface, bottom plate top surface right-hand member is equipped with the binding wire mechanism, the binding wire mechanism includes two limiting plates to establishhing from top to bottom, a plurality of recesses have been seted up to limiting plate inner.

Preferably, the right part of the upper end of the fixed rod is in threaded connection with a plum bolt, and the left end of the plum bolt penetrates into the fixed rod and is in butt fit with the outer wall of the movable rod.

Preferably, the square rod is eccentrically connected with the shifting rod.

Preferably, the front wall of the upper end of the movable rod is fixedly connected with a face gear B, and the face gear B is in clamping fit with the face gear A.

Preferably, the front and rear parts of the limiting plate on the upper side are both in threaded connection with a screw, the lower end of the screw is rotatably connected with the limiting plate on the lower side, the upper part of the screw is in threaded connection with a butterfly nut, and the bottom surface of the butterfly nut is in butt fit with the limiting plate on the upper side.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a to rotate the driving lever, face gear A and the cancellation of face gear B joint for the projecting apparatus of being connected with the bottom plate can carry out the adjustment of every single move angle, through being connected the convenience with the base and use the device flow, compact structure, it is easy and simple to handle.

2. The utility model discloses a be equipped with the pencil mechanism at the bottom plate right-hand member, the recess through two limiting plates can press from both sides the wire rod of projecting apparatus and external connection tightly for the wire rod can be orderly arrange and avoid receiving external force to pull and lead to the wire rod to break away from or make equipment damage, and the protectiveness is strong.

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 driving lever, the square rod and the face gear A of the present invention;

fig. 3 is a schematic structural view of the wire bundling mechanism of the present invention;

the reference numbers in the figures illustrate: 1. a base; 2. a universal wheel; 3. fixing the rod; 4. a movable rod; 5. a quincuncial bolt; 6. hinging seat; 7. a deflector rod; 8. a square bar; 9. a face gear A; 10. a spring; 11. a face gear B; 12. a base plate; 13. a projector; 14. a wire bundling mechanism; 1401. a limiting plate; 1402. a groove; 1403. a screw; 1404. butterfly nuts.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a projecting apparatus for education and teaching speech, which comprises a base 1, the equal fixedly connected with universal wheel 2 in 1 bottom surface edge of base, 1 top surface middle part fixedly connected with dead lever 3 of base, sliding connection has movable rod 4 in the 3 upper portions of dead lever, 4 upper ends of movable rod articulate there is free bearing 6, the 6 lower part antetheca of free bearing is equipped with driving lever 7, driving lever 7 upper end is rotated and is connected with

square pole

8, 8 rear ends of square pole are worn into in the free bearing 6 and fixedly connected with face gear A9, face gear A9 antetheca fixedly connected with spring 10, the spring 10 front end is connected fixedly with free bearing 6, 6 top surface fixedly connected with bottom plates 12 of free bearing, projecting apparatus 13 is installed to bottom plates 12 top surface, bottom plates 12 top surface right-hand member is equipped with wire bundling mechanism 14, wire bundling mechanism 14 includes two limiting plate 1401 to setting up from top to bottom, limiting plate 1401 has seted up a plurality of recesses 1402. Will rotate driving lever 7 to horizontality, driving lever 7 drives the face gear A9 that is connected with square rod 8 and moves to the front side, the face gear B11 joint cancellation that face gear A9 is connected with movable rod 4 for the adjustment of pitch angle can be carried out to the projecting apparatus 13 of being connected with bottom plate 12, recess 1402 through two limiting plates 1401 can press from both sides projecting apparatus 13 and externally connected's wire rod tightly, make the wire rod can be orderly arrange and avoid receiving external force to pull and lead to the wire rod to break away from or make equipment damage.

Specifically, the right part of the upper end of the fixed rod 3 is in threaded connection with a plum bolt 5, and the left end of the plum bolt 5 penetrates into the fixed rod 3 and is in butt fit with the outer wall of the movable rod 4. The height of the movable rod 4 can be adjusted on the fixed rod 3 by rotating the plum bolt 5, so that the height of the projector 13 can be adjusted conveniently.

Further, the square rod 8 is eccentrically connected with the shift lever 7. When the shift lever 7 rotates to be horizontal, the shift lever 7 drives the square rod 8 to move towards the front side on the hinged support 6, and when the shift lever 7 rotates to be vertical, the spring 10 drives the square rod 8 connected with the face gear A9 to move towards the rear side.

Still further, the front wall of the upper end of the movable rod 4 is fixedly connected with a face gear B11, and the face gear B11 is in clamping fit with the face gear A9. When the engagement of the face gear a9 with the face gear B11 is cancelled, the projector 13 attached to the base plate 12 can perform adjustment of the tilt angle on the movable lever 3.

Furthermore, the front and the rear parts of the upper limiting plate 1401 are both connected with a screw 1403 in a threaded manner, the lower end of the screw 1403 is rotatably connected with the lower limiting plate 1401, the upper part of the screw 1403 is connected with a thumb nut 1404 in a threaded manner, and the bottom surface of the thumb nut 1404 is in abutting fit with the upper limiting plate 1401. By loosening the wing nut 1404 so that the distance between the two stopper plates 1401 becomes large, the external wire connected to the projector 13 can be clamped and fixed by the groove 1402.

The working principle is as follows: the utility model discloses when using, promote this device to the needs use place, unscrew plum blossom bolt 5 and make movable rod 4 can be high-altitude mixture control on dead lever 3, make projecting apparatus 13 adjust to suitable height, and screw up plum blossom bolt 5, rotate driving lever 7 to the level, driving lever 7 drives square pole 8 and moves to the front side on free bearing 6, when face gear A9 and face gear B11's joint cancellation, the adjustment of pitch angle can be carried out on movable rod 3 with projecting apparatus 13 that bottom plate 12 is connected, and rotate driving lever 7 vertical state, spring 10 drives face gear A9 and face gear B11 joint is fixed, unscrew butterfly nut 1404, make the interval grow of two limiting plates 1401, can press from both sides through recess 1402 with the outside wire rod of being connected with projecting apparatus 13 and press from both sides tightly fixedly.

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 projecting apparatus for education and teaching speech, includes base (1), its characterized in that: the universal wheels (2) are fixedly connected at the corners of the bottom surface of the base (1), the fixed rod (3) is fixedly connected at the middle part of the top surface of the base (1), the movable rod (4) is slidably connected at the upper part of the fixed rod (3), the hinged support (6) is hinged at the upper end of the movable rod (4), the shifting rod (7) is arranged on the front wall of the lower part of the hinged support (6), the square rod (8) is rotatably connected at the upper end of the shifting rod (7), the rear end of the square rod (8) penetrates into the hinged support (6) and is fixedly connected with a face gear A (9), the front wall of the face gear A (9) is fixedly connected with a spring (10), the front end of the spring (10) is fixedly connected with the hinged support (6), the bottom plate (12) is fixedly connected at the top surface of the hinged support (6), the projector (13) is installed at the top surface of the bottom plate (12), and the wire bundling mechanism (14) is arranged at the right end of the top surface of the bottom plate (12), the wire bundling mechanism (14) comprises two limiting plates (1401) which are arranged in an up-down opposite mode, and a plurality of grooves (1402) are formed in the inner ends of the limiting plates (1401).

2. A projector for educational teaching lectures according to claim 1, wherein: the right part of the upper end of the fixed rod (3) is in threaded connection with a plum bolt (5), and the left end of the plum bolt (5) penetrates into the fixed rod (3) and is in butt fit with the outer wall of the movable rod (4).

3. A projector for educational teaching lectures according to claim 1, wherein: the square rod (8) is eccentrically connected with the deflector rod (7).

4. A projector for educational teaching lectures according to claim 1, wherein: the upper end antetheca fixedly connected with face gear B (11) of movable rod (4), face gear B (11) and face gear A (9) joint cooperation.

5. A projector for educational teaching lectures according to claim 1, wherein: the front and the rear of the limiting plate (1401) on the upper side are both connected with screws (1403) in a threaded mode, the lower ends of the screws (1403) are rotatably connected with the limiting plate (1401) on the lower side, the upper portion of the screws (1403) is connected with a thumb nut (1404) in a threaded mode, and the bottom surface of the thumb nut (1404) is in butt fit with the limiting plate (1401) on the upper side.