Mobile projection device

Abstract

The utility model relates to the field of projection devices, in particular to a movable projection device which comprises a mounting base and a placement basket, side plates are fixedly mounted on two sides of the top of the mounting base, second rotary connecting pieces are arranged in the middles of the inner sides of the side plates, and the middles of two sides of the placement basket are rotatably connected with the middles of the side plates through the second rotary connecting pieces. A projector can be conveniently placed in the placing basket, the angle of the placing basket can be adjusted according to actual conditions, and then the projection height can be adjusted, bolts are arranged at the top of the placing basket, bolts are inserted into the bolts, the bolts are inserted into pin holes of the side plates, the placing basket can be fixed, and a handle is rotationally installed between one sides of the tops of the two side plates through a first rotary connecting piece. The device is convenient to pull, so that the projection device is movable, and an image space is provided for patients who are difficult to obtain external stimulation and stay in hospitals, nursing facilities and the like at ordinary times.

Description

Technical Field

[0001] The utility model relates to the field of projection devices, in particular to a mobile projection device. Background Art

[0002] A projection device is an optical instrument that uses optical elements to magnify the contour of a workpiece and project it onto a screen. It can be used for contour measurement with transmitted light, or for measuring the surface shape of non-through holes and observing the surface of parts with reflected light.

[0003] However, in the prior art, there are the following defects:

[0004] Existing projection devices do not have machines that can be used in large places such as large wards, lounges, and gymnasiums, and most projection devices are fixedly installed for use, which is inconvenient to disassemble and move. When multiple places need to be used, they need to be installed separately, which is not convenient and causes waste of resources. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a mobile projection device to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A mobile projection device, including an installation base and a placement basket. The top of the installation base is provided with an installation cavity. In the middle of the top of the installation cavity, a battery is fixedly installed. On both sides of the top of the installation base, side plates are fixedly installed. In the middle position of the inner side of the side plates, second rotating connectors are fixedly installed. The middle parts of both sides of the placement basket are rotationally connected with the second rotating connectors. At the top of the front surface of the installation base, a fixed frame is fixedly installed. Circular through holes are opened on both sides of the front surface of the fixed frame. At one end of the inner wall of the bottom of the installation cavity close to the fixed frame, a speaker is fixedly installed. On both sides of the front surface of the speaker, speakers are provided. The two speakers are inserted and installed in the circular through holes. Universal wheels are arranged at the four corners of the bottom of the installation base.

[0007] Adopting the above technical solution, the two side plates of this solution are convenient for supporting and installing the placement basket. The placement basket is convenient for placing a projector for projection use. The speaker is connected to the projector, which is convenient for amplifying the sound. The universal wheels are convenient for moving the device.

[0008] At one end of the side plate facing away from the fixed frame at the top of the installation cavity, a connecting plate is fixedly installed. On the side of the connecting plate away from the side plate, a first rotating connector is rotationally installed. The middle parts of one side of the two first rotating connectors are fixedly connected through a handle.

[0009] Adopting the above technical solution, the handle of this solution is rotationally connected to the side plate through the first rotating connector. The handle is convenient for pulling the projection device, and the direction and angle can be adjusted.

[0010] The handle is in a "U" shape. The middle parts of the two connecting plates are fixedly connected by a connecting rod. The two ends of the connecting rod are respectively rotatably connected to the middle parts on the other sides of the two first rotating connectors.

[0011] Adopting the above technical solution, the connecting rod in this solution plays a linkage role. The first rotating connector is rotatably connected to the connecting rod, and the angle of the handle can be changed according to the actual pulling direction.

[0012] A plurality of pin holes are formed in the middle of one of the side plates. The plurality of pin holes are evenly arranged in an arc shape. A door bolt is fixedly installed on one side of the top of the placing basket close to the pin holes. A bolt is arranged inside the door bolt, and the bolt is inserted and installed inside the pin holes.

[0013] Adopting the above technical solution, the bolt slides inside the door bolt, and the bolt is inserted into the pin holes on the side plate, playing a role in fixing the position of the placing basket.

[0014] The position of the door bolt corresponds to the position where the pin holes are formed. Through grooves are formed on both sides of the placing basket. Ventilation openings are formed in the middle parts of the two side plates. A plurality of ventilation holes are arranged inside the ventilation openings, and the ventilation openings are correspondingly formed with the through grooves.

[0015] Adopting the above technical solution, in this solution, as the angle of the placing basket is adjusted, the position of the door bolt will also change. The positions of the pin holes evenly formed in an arc shape on the side plate correspond to the rotation arc of the door bolt, facilitating the insertion of the bolt into the pin holes.

[0016] An identification card is fixedly installed on the outer wall of the bottom of one of the side plates. An adjustment knob is arranged inside the first rotating connector. A handle is fixedly installed in the middle of the top of the placing basket far from the fixed frame.

[0017] Adopting the above technical solution, the equipment information of the projection device is printed on the identification card, and the handle facilitates adjusting the angle of the placing basket.

[0018] A first knob and a second knob are sequentially arranged on one side of the top of the fixed frame. The bottoms of the first knob and the second knob pass through the fixed frame and are rotatably connected to the speaker.

[0019] Adopting the above technical solution, the first knob facilitates controlling the turning on and off of the speaker, and the second knob facilitates adjusting the volume of the speaker.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0021] The projector of the present utility model can be placed in the placing frame. The projector is not fixedly installed, which is convenient for movement. The angle of the placing basket can be adjusted, which is convenient for adjusting the projection height according to the actual situation. The handle is rotatably installed on the back of the present utility model, which is convenient for pulling the device for movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 is a schematic diagram of the mounting base structure of the present utility model;

[0024] Figure 3 is a schematic diagram of the handle part structure of the present utility model;

[0025] Figure 4 is a schematic diagram of the top structure of the mounting base in the present utility model;

[0026] Figure 5 is a schematic diagram of the overall back structure of the present utility model.

[0027] In the figure: 1, mounting base; 2, side plate; 3, placement basket; 4, connecting plate; 5, first rotating connector; 6, connecting rod; 7, handle; 8, adjusting knob; 9, bolt; 10, pin hole; 11, handle; 12, identification card; 13, ventilation opening; 14, speaker; 15, first knob; 16, fixed frame; 17, second knob; 18, installation cavity; 19, bolt; 20, battery; 21, audio; 22, second rotating connector; 23, round through hole; 24, through slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-5, the utility model provides a mobile projection device, which includes a mounting base 1 and a placement basket 3. A mounting cavity 18 is provided at the top of the mounting base 1. A battery 20 is fixedly installed in the middle of the top of the mounting cavity 18. On both sides of the top of the mounting base 1, side plates 2 are fixedly installed. A second rotating connector 22 is fixedly installed at the middle position inside the side plate 2. The middle parts on both sides of the placement basket 3 are rotatably connected to the second rotating connector 22. At the top of the front of the mounting base 1, a fixed frame 16 is fixedly installed. Circular through holes 23 are provided on both sides of the front of the fixed frame 16. At one end of the inner wall of the bottom of the mounting cavity 18 close to the fixed frame 16, a speaker 21 is fixedly installed. On both sides of the front of the speaker 21, speakers 14 are provided. The two speakers 14 are inserted and installed in the circular through holes 23. Universal wheels are provided at the four corners of the bottom of the mounting base 1. A projector is installed in the placement basket 3. The speaker 21 is connected to the projector.

[0030] On the top of the side plate 2 facing the mounting cavity 18, at one end far from the fixed frame 16, a connecting plate 4 is fixedly installed. On the side of the connecting plate 4 far from the side plate 2, a first rotating connector 5 is rotatably installed. The middle parts on one side of the two first rotating connectors 5 are fixedly connected through a handle 11. The handle 11 is rotatably connected to the side plate 2 through the first rotating connector 5.

[0031] The handle 11 is in a "U" shape. The middle parts of the two connecting plates 4 are fixedly connected through a connecting rod 6. The two ends of the connecting rod 6 are respectively rotatably connected to the middle parts on the other side of the two first rotating connectors 5. The handle 11 is convenient for pulling the projection device to move.

[0032] A number of pin holes 10 are provided in the middle of one of the side plates 2. The number of pin holes 10 is evenly arranged in an arc shape. On the side of the top of the placement basket 3 close to the pin holes 10, a bolt 9 is fixedly installed. An insertion pin 19 is provided inside the bolt 9. The insertion pin 19 is inserted and installed inside the pin holes 10. Inserting the insertion pin 19 into the pin holes 10 can play a role in fixing the position of the placement basket 3.

[0033] The position of the bolt 9 corresponds to the position where the pin holes 10 are opened. Through grooves 24 are provided on both sides of the placement basket 3. Ventilation openings 13 are provided in the middle of both side plates 2. A number of ventilation holes are provided inside the ventilation openings 13. The ventilation openings 13 are correspondingly opened with the through grooves 24. The ventilation openings 13 are convenient for ventilation and heat dissipation.

[0034] On the outer wall of the bottom of one of the side plates 2, an identification card 12 is fixedly installed. An adjustment knob 8 is provided inside the first rotating connector 5. On the middle part of the top of the placement basket 3, at one end far from the fixed frame 16, a handle 7 is fixedly installed. The adjustment knob 8 can adjust the tightness of the first rotating connector 5.

[0035] On one side of the top of the fixed frame 16, a first knob 15 and a second knob 17 are successively arranged. The bottoms of the first knob 15 and the second knob 17 pass through the fixed frame 16 and are rotatably connected to the speaker 21. The first knob 15 and the second knob 17 can control the speaker 21.

[0036] Working principle: When the utility model is in use, first put the projector into the interior of the placement basket 3, then hold the handle 7 and rotate the placement basket 3 according to the actual usage situation. After adjusting to the appropriate angle, insert the bolt 19 into the corresponding pin hole 10 to fix the position of the placement basket 3. Then connect the projector to the speaker 21 to facilitate playing sound files. Rotating the first knob 15 can turn on the speaker 21, and rotating the second knob 17 can adjust the sound volume. Both ends of the handle 11 are rotatably connected to the inner walls of the two side plates 2 through the first rotating connector 5, which is convenient for changing the angle according to the actual pulling direction and facilitating pulling and moving the projection device.

[0037] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A mobile projection device, comprising a mounting base (1) and a placement basket (3), characterized in that: The top of the mounting base (1) is provided with a mounting cavity (18). In the middle of the top of the mounting cavity (18), a battery (20) is fixedly installed. On both sides of the top of the mounting base (1), side plates (2) are fixedly installed. In the middle position of the inner side of the side plate (2), a second rotating connector (22) is fixedly installed. The middle parts of both sides of the placing basket (3) are rotationally connected to the second rotating connector (22). On the top of the front of the mounting base (1), a fixed frame (16) is fixedly installed. Circular through-holes (23) are formed on both sides of the front of the fixed frame (16). At one end of the inner wall of the bottom of the mounting cavity (18) close to the fixed frame (16), a speaker (21) is fixedly installed. On both sides of the front of the speaker (21), speakers (14) are provided. The two speakers (14) are inserted and installed in the circular through-holes (23). Universal wheels are provided at the four corners of the bottom of the mounting base (1).

2. The mobile projection device according to claim 1, wherein: On one end of the top of the side plate (2) facing the mounting cavity (18) and away from the fixed frame (16), a connecting plate (4) is fixedly installed. On the side of the connecting plate (4) away from the side plate (2), a first rotating connector (5) is rotationally installed. The middle parts of one side of the two first rotating connectors (5) are fixedly connected through a handle (11).

3. The mobile projection device according to claim 2, wherein: The handle (11) is in a "U" shape. The middle parts of the two connecting plates (4) are fixedly connected through a connecting rod (6). The two ends of the connecting rod (6) are respectively rotationally connected to the middle parts of the other side of the two first rotating connectors (5).

4. A mobile projection device according to claim 1, characterized in that: A plurality of pin holes (10) are formed in the middle of one of the side plates (2). The plurality of pin holes (10) are evenly arranged in an arc shape. On one side of the top of the placing basket (3) close to the pin holes (10), a door bolt (9) is fixedly installed. A bolt (19) is arranged in the door bolt (9). The bolt (19) is inserted and installed inside the pin holes (10).

5. The mobile projection device according to claim 4, wherein: The position of the door bolt (9) corresponds to the position where the pin holes (10) are formed. Through grooves (24) are formed on both sides of the placing basket (3). Ventilation openings (13) are formed in the middle of both side plates (2). A plurality of ventilation holes are arranged in the ventilation openings (13). The ventilation openings (13) are correspondingly formed with the through grooves (24).

6. A mobile projection device according to claim 2, wherein: On the outer wall of the bottom of one of the side plates (2), an identification card (12) is fixedly installed. An adjustment knob (8) is arranged inside the first rotating connector (5). On the middle part of one side of the top of the placing basket (3) away from the fixed frame (16), a handle (7) is fixedly installed.

7. A mobile projection device according to claim 1, characterized in that: On one side of the top of the fixed frame (16), a first knob (15) and a second knob (17) are arranged in sequence. The bottom of the first knob (15) and the bottom of the second knob (17) pass through the fixed frame (16) and are rotationally connected to the speaker (21).

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