Virtual simulation teaching projection device

Abstract

The invention relates to the technical field of projection, in particular to a virtual simulation teaching projection device which comprises a base, universal wheels are fixedly connected to the four corners of the bottom of the base, a lifting adjusting assembly is arranged in the base, a projector is arranged above the lifting adjusting assembly, a lens protection assembly is arranged outside the projector, and the lens protection assembly is arranged on the base. The projector comprises a body, heat dissipation holes are formed in the right side of the body, a lens is arranged on the right side of the front face of the body, the lens protection assembly comprises an L-shaped shell arranged outside the body, the inner side of the L-shaped shell is fixedly connected with the outer wall of the body, and the L-shaped shell is arranged on the left side of the lens. A protective cover penetrates through the right side of the L-shaped shell, a rotating shaft penetrates through one end of the top of the L-shaped shell, the surface of the rotating shaft is rotationally connected with the top of the L-shaped shell, and a rotating roller is fixedly connected to the bottom end of the rotating shaft, so that a lens of the projector can be protected, and clear imaging can be kept.

Description

Technical Field

[0001] This invention relates to the field of projection technology, specifically to a virtual simulation teaching projection device. Background Technology

[0002] Virtual reality (VR) technology encompasses computer, electronic information, and simulation technology. Its basic implementation method is to simulate a virtual environment by computer to give people a sense of immersion. In virtual simulation education and teaching, projectors are often used. A projector is a device that can project images or videos onto a screen. It can be connected to computers, VCDs, DVDs, BDs, game consoles, DVs, etc. through different interfaces to play corresponding video signals.

[0003] The invention patent with publication number CN 110701445 A discloses a VR projection device suitable for education and training, which can move the first rotating shaft upward or downward by driving an electric push rod, thereby realizing height adjustment;

[0004] However, the projector lens in this application is directly exposed to the air, and dust adheres to the surface of the lens. Furthermore, the lens is exposed to the outside and is easily bumped, resulting in unclear projected images. Regular maintenance and cleaning are required. Summary of the Invention

[0005] The purpose of this invention is to provide a virtual simulation teaching projection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A virtual simulation teaching projection device includes a base, with universal wheels fixedly connected to the four corners of the bottom of the base. A lifting adjustment component is provided inside the base, and a projector is provided above the lifting adjustment component. A lens protection component is provided outside the projector. The projector includes a body, with a heat dissipation hole on the right side of the body, and a lens is provided on the right side of the front of the body.

[0008] The lens protection assembly includes an L-shaped housing disposed outside the main body. The inner side of the L-shaped housing is fixedly connected to the outer wall of the main body. The L-shaped housing is disposed on the left side of the lens. A protective cover extends through the right side of the L-shaped housing. A rotating shaft extends through one end of the top of the L-shaped housing. The surface of the rotating shaft is rotatably connected to the top of the L-shaped housing. A rotating roller is fixedly connected to the bottom end of the rotating shaft.

[0009] As a preferred embodiment of the present invention, the bottom end of the rotating roller is rotatably connected to the inner wall of the L-shaped housing, a pull rope is wound around the surface of the rotating roller, a tension roller is provided in front of the rotating roller, a shaft seat is rotatably connected to the outer wall of the tension roller by a pin, the other end of the shaft seat is fixedly connected to the outer wall of the main body, and the surface of the tension roller is movably connected to the surface of the pull rope.

[0010] As a preferred embodiment of the present invention, a guide wheel is provided on the right side of the tension roller. The total number of guide wheels is six. The six guide wheels are divided into groups of three, and the two groups of guide wheels correspond to each other in pairs. The two groups of guide wheels are arranged on the front and rear sides of the pull rope surface. The end of the pull rope away from the rotating roller is fixedly connected to the left end of the protective cover.

[0011] As a preferred embodiment of the present invention, the inner side of the protective cover is slidably connected to the surface of the main body, a guide rod is provided at the front of the protective cover, the right end of the guide rod is fixedly connected to the inner wall of the L-shaped shell, a guide slider is slidably connected to the surface of the guide rod, the other end of the guide slider is fixedly connected to the surface of the protective cover, a spring is sleeved on the surface of the guide rod, and one end of the spring is fixedly connected to the surface of the guide slider.

[0012] As a preferred embodiment of the present invention, the lifting adjustment assembly includes a worm gear disposed at the bottom of the inner cavity of the base, a rocker arm rotatably connected to the bottom of the front side of the base, the rear end of the rocker arm extending into the interior of the base and fixedly connected to the front side of the worm gear, and a worm being disposed above the worm gear, the surface of the worm being meshed with the surface of the worm gear.

[0013] As a preferred embodiment of the present invention, connecting rods are fixedly connected to both ends of the worm gear, and the ends of the two connecting rods away from the worm gear are rotatably connected to the inner walls of the left and right sides of the base. A drive gear is fixedly connected to the surface of the ends of the two connecting rods away from the worm gear, and bearing seats are fixedly connected to both sides of the inner cavity of the base.

[0014] As a preferred embodiment of the present invention, a screw rod is passed through the interior of the two bearing seats, and a driven gear is fixedly connected to the bottom end of each of the two screw rods. The surfaces of the two driven gears are respectively meshed with the surfaces of the two driving gears. A lifting platform is passed through the top of the base, and the side wall of the lifting platform is slidably connected to the inner wall of the base.

[0015] As a preferred embodiment of the present invention, threaded grooves are provided on the inner walls of both sides of the lifting platform, the top ends of the two screws extend into the interior of the two threaded grooves, the outer walls of the two screws are threadedly connected to the inner walls of the two threaded grooves respectively, limit sliding grooves are provided on the inner walls of both sides of the base, limit sliders are fixedly connected to the bottom of both sides of the lifting platform, the surfaces of the two limit sliders are slidably connected to the inner walls of the two limit sliding grooves respectively, and the top of the lifting platform is fixedly connected to the bottom of the body.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In this invention, the worm gear, worm, connecting rod, driving gear and driven gear can drive the screws on both sides to rotate. The lifting platform moves up and down on the surface of the screw under the action of the threaded groove, thereby adjusting the height of the body.

[0018] 2. In this invention, the protective cover can shield the lens after it stops working, preventing dust from adhering to the lens surface or the lens from being damaged by bumps. The protective cover can move left and right under the action of the spring by rotating the roller to wind or unwind the pull rope. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the lifting adjustment component of the present invention;

[0021] Figure 3 This is an enlarged structural diagram of point A in the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the projector of the present invention;

[0023] Figure 5 This is a top view schematic diagram of the lens protection assembly of the present invention.

[0024] In the diagram: 1. Base; 2. Casters; 3. Lifting and adjusting assembly; 301. Worm gear; 302. Crank handle; 303. Worm; 304. Connecting rod; 305. Drive gear; 306. Bearing seat; 307. Screw; 308. Driven gear; 309. Lifting platform; 310. Threaded groove; 311. Limiting groove; 312. Limiting slider; 4. Projector; 401. Body; 402. Heat dissipation hole; 403. Lens; 5. Lens protection assembly; 501. L-shaped housing; 502. Protective cover; 503. Rotating shaft; 504. Rotating roller; 505. Pull rope; 506. Shaft seat; 507. Tension roller; 508. Guide wheel; 509. Guide rod; 510. Guide slider; 511. Spring. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] To facilitate understanding of the present invention, a more comprehensive description of the invention will be given below with reference to the accompanying drawings, and several embodiments of the invention will be provided. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be more thorough and complete.

[0027] For examples, please refer to Figure 1 , Figure 4 , Figure 5 The present invention provides a technical solution:

[0028] A virtual simulation teaching projection device includes a base 1, with casters 2 fixedly connected to the four corners of the bottom of the base 1. A lifting adjustment assembly 3 is provided inside the base 1, and a projector 4 is arranged above the lifting adjustment assembly 3. A lens protection assembly 5 is provided outside the projector 4. The projector 4 includes a body 401, with a heat dissipation hole 402 on the right side of the body 401. A lens 403 is arranged on the right side of the front of the body 401. The lens protection assembly 5 includes an L-shaped housing 501 arranged outside the body 401. The inner side of the L-shaped housing 501 is fixedly connected to the outer wall of the body 401. The L-shaped housing 501 is located to the left of the lens 403. A protective cover 502 passes through the right side of the L-shaped housing 501. A rotating shaft 503 passes through one end of the top of the L-shaped housing 501. The surface of the rotating shaft 503 is rotatably connected to the top of the L-shaped housing 501. A rotating roller 504 is fixedly connected to the bottom end of the rotating shaft 503.

[0029] like Figure 5As shown, the bottom end of the rotating roller 504 is rotatably connected to the inner wall of the L-shaped housing 501. A pull rope 505 is wound around the surface of the rotating roller 504. A tension roller 507 is positioned in front of the rotating roller 504. A shaft seat 506 is rotatably connected to the outer wall of the tension roller 507 via a pin. The other end of the shaft seat 506 is fixedly connected to the outer wall of the main body 401. The surface of the tension roller 507 is movably connected to the surface of the pull rope 505. A guide wheel 508 is positioned on the right side of the tension roller 507. There are a total of six guide wheels 508, arranged in groups of three. Two groups of guide wheels 508 correspond one-to-one with each other. 08 is set on the front and rear sides of the surface of the pull rope 505. The end of the pull rope 505 away from the rotating roller 504 is fixedly connected to the left end of the protective cover 502. The inner side of the protective cover 502 is slidably connected to the surface of the body 401. A guide rod 509 is set in front of the protective cover 502. The right end of the guide rod 509 is fixedly connected to the inner wall of the L-shaped housing 501. A guide slider 510 is slidably connected to the surface of the guide rod 509. The other end of the guide slider 510 is fixedly connected to the surface of the protective cover 502. A spring 511 is sleeved on the surface of the guide rod 509. One end of the spring 511 is fixedly connected to the surface of the guide slider 510.

[0030] like Figure 1 , Figure 2 , Figure 3As shown, the lifting adjustment assembly 3 includes a worm gear 301 disposed at the bottom of the inner cavity of the base 1. A crank handle 302 is rotatably connected to the bottom of the front side of the base 1. The rear end of the crank handle 302 extends into the interior of the base 1 and is fixedly connected to the front side of the worm gear 301. A worm 303 is disposed above the worm gear 301. The surface of the worm 303 meshes with the surface of the worm gear 301. Connecting rods 304 are fixedly connected to both ends of the worm 303. The ends of the two connecting rods 304 away from the worm 303 are rotatably connected to the inner walls of the left and right sides of the base 1. A drive gear 305 is fixedly connected to the surface of the ends of the two connecting rods 304 away from the worm 303. Bearing seats 306 are fixedly connected to both sides of the inner cavity of the base 1. Screws 307 penetrate through the interior of the two bearing seats 306. The bottom ends of the two screws 307 are... A driven gear 308 is fixedly connected, and the surfaces of the two driven gears 308 are respectively meshed with the surfaces of the two driving gears 305. A lifting platform 309 passes through the top of the base 1. The side wall of the lifting platform 309 is slidably connected to the inner wall of the base 1. Threaded grooves 310 are opened on the inner walls of both the left and right sides of the lifting platform 309. The top ends of the two screws 307 extend into the interior of the two threaded grooves 310. The outer walls of the two screws 307 are respectively threadedly connected to the inner walls of the two threaded grooves 310. Limiting grooves 311 are opened on the inner walls of both the left and right sides of the base 1. Limiting sliders 312 are fixedly connected to the bottom of both the left and right sides of the lifting platform 309. The surfaces of the two limiting sliders 312 are slidably connected to the inner walls of the two limiting grooves 311. The top of the lifting platform 309 is fixedly connected to the bottom of the body 401.

[0031] The working process of this invention is as follows: When in use, move the device to a suitable position, rotate the shaft 503 to drive the rotating roller 504 to rotate, and the rotating roller 504 winds up the pull rope 505. The pull rope 505 pulls the protective cover 502 to the left, causing the protective cover 502 to retract inside the L-shaped housing 501. The guide slider 510 slides on the surface of the guide rod 509, compressing the spring 511, leaving the lens 403 exposed. The crank handle 302 drives the worm gear 301 to rotate, causing the worm gear 301 to drive the worm 303, which in turn drives the drive gear 305 to rotate via the connecting rods 304 at both ends. Two drive gears 305 mesh with two driven gears 308 to drive two screws 307 to rotate. The lifting platform 309 moves up and down on the surface of the screws 307 through the internal threaded grooves 310, so that the height of the main body 401 can be adjusted according to the usage, making it more practical. After use, the main body 401 can reverse the rotating roller 504 to unwind the pull rope 505. Under the action of the spring 511, the protective cover 502 extends to the outside of the L-shaped housing 501 to shield the lens 403, preventing the lens 403 from being damaged and affecting the clarity of the image.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A virtual simulation teaching projection device, comprising a base (1), characterized in that: The four corners of the base (1) are fixedly connected with casters (2). The base (1) is equipped with a lifting adjustment component (3). A projector (4) is installed above the lifting adjustment component (3). A lens protection component (5) is installed outside the projector (4). The projector (4) includes a body (401). A heat dissipation hole (402) is opened on the right side of the body (401). A lens (403) is installed on the right side of the front of the body (401). The lens protection assembly (5) includes an L-shaped housing (501) disposed outside the body (401). The inner side of the L-shaped housing (501) is fixedly connected to the outer wall of the body (401). The L-shaped housing (501) is disposed on the left side of the lens (403). A protective cover (502) passes through the right side of the L-shaped housing (501). A rotating shaft (503) passes through one end of the top of the L-shaped housing (501). The surface of the rotating shaft (503) is rotatably connected to the top of the L-shaped housing (501). A rotating roller (504) is fixedly connected to the bottom end of the rotating shaft (503).

2. The virtual simulation teaching projection device according to claim 1, characterized in that: The bottom end of the rotating roller (504) is rotatably connected to the inner wall of the L-shaped housing (501). A pull rope (505) is wound around the surface of the rotating roller (504). A tension roller (507) is provided in front of the rotating roller (504). A shaft seat (506) is rotatably connected to the outer wall of the tension roller (507) through a pin. The other end of the shaft seat (506) is fixedly connected to the outer wall of the main body (401). The surface of the tension roller (507) is movably connected to the surface of the pull rope (505).

3. The virtual simulation teaching projection device according to claim 2, characterized in that: The tension roller (507) is provided with guide wheels (508) on its right side. There are a total of six guide wheels (508). The six guide wheels (508) are arranged in groups of three. The two groups of guide wheels (508) correspond to each other in pairs. The two groups of guide wheels (508) are arranged on the front and rear sides of the surface of the pull rope (505). The end of the pull rope (505) away from the rotating roller (504) is fixedly connected to the left end of the protective cover (502).

4. The virtual simulation teaching projection device according to claim 3, characterized in that: The inner side of the protective cover (502) is slidably connected to the surface of the body (401). A guide rod (509) is provided in front of the protective cover (502). The right end of the guide rod (509) is fixedly connected to the inner wall of the L-shaped shell (501). A guide slider (510) is slidably connected to the surface of the guide rod (509). The other end of the guide slider (510) is fixedly connected to the surface of the protective cover (502). A spring (511) is sleeved on the surface of the guide rod (509). One end of the spring (511) is fixedly connected to the surface of the guide slider (510).

5. The virtual simulation teaching projection device according to claim 1, characterized in that: The lifting adjustment assembly (3) includes a worm gear (301) disposed at the bottom of the inner cavity of the base (1). A rocker arm (302) is rotatably connected to the bottom of the front side of the base (1). The rear end of the rocker arm (302) extends into the interior of the base (1) and is fixedly connected to the front side of the worm gear (301). A worm (303) is disposed above the worm gear (301). The surface of the worm (303) meshes with the surface of the worm gear (301).

6. The virtual simulation teaching projection device according to claim 5, characterized in that: Both ends of the worm (303) are fixedly connected to connecting rods (304). The ends of the two connecting rods (304) away from the worm (303) are rotatably connected to the inner walls of the left and right sides of the base (1). The surfaces of the ends of the two connecting rods (304) away from the worm (303) are fixedly connected to driving gears (305). The left and right sides of the inner cavity of the base (1) are fixedly connected to bearing seats (306).

7. A virtual simulation teaching projection device according to claim 6, characterized in that: A screw (307) runs through the interior of each of the two bearing seats (306). A driven gear (308) is fixedly connected to the bottom end of each of the two screws (307). The surfaces of the two driven gears (308) mesh with the surfaces of the two driving gears (305). A lifting platform (309) runs through the top of the base (1). The side wall of the lifting platform (309) is slidably connected to the inner wall of the base (1).

8. The virtual simulation teaching projection device according to claim 7, characterized in that: The lifting platform (309) has threaded grooves (310) on both the left and right inner walls. The top ends of the two screws (307) extend into the interior of the two threaded grooves (310). The outer walls of the two screws (307) are threadedly connected to the inner walls of the two threaded grooves (310). The base (1) has limit grooves (311) on both the left and right inner walls. Limit sliders (312) are fixedly connected to the bottom of both the left and right sides of the lifting platform (309). The surfaces of the two limit sliders (312) are slidably connected to the inner walls of the two limit grooves (311). The top of the lifting platform (309) is fixedly connected to the bottom of the body (401).

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