Multimedia information display projection screen

Abstract

The utility model discloses a multimedia information display projection screen which comprises a base, a mounting groove is formed in a mounting block, a connecting block is connected to the inner surface of the mounting groove in a sliding mode, a first sliding groove is formed in the connecting block, a first spring is fixedly connected to the front inner wall of the first sliding groove, and a second spring is fixedly connected to the front inner wall of the first sliding groove. A connecting block is inserted into a mounting groove, a shifting block is pushed, the shifting block drives a limiting plate to slide, the limiting plate slides to push the inclined face of a clamping block and enables the clamping block to slide upwards, when the limiting plate slides to the bottom of the groove, the clamping block is not limited by the acting force of a second spring and drives the clamping block to slide downwards, the limiting plate is clamped through the clamping block, and the connecting block is clamped through the limiting plate; and when dismounting is needed, the pull rod is pulled, the pull rod drives the clamping block to slide upwards, the limiting plate loses limitation, the limiting plate rebounds under the action force of the first spring after losing limitation, and therefore the connecting block loses limitation, and the effects that mounting and dismounting are convenient, and the operation efficiency is improved are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of projection screens, in particular to a multimedia information display projection screen. Background Art

[0002] A projection screen is a display device used to enhance projection effects. It is widely used in education, business, and entertainment. Its main function is to improve projection effects, ensure clear images and bright colors, and be suitable for different usage environments and needs.

[0003] Most of the existing multimedia information projection screen bodies and brackets are fixed by threaded rods, which makes disassembly more troublesome, affects operational efficiency, and is inconvenient to disassemble and clean the projection screen. After searching, it was found that the technical solution provided by the utility model with application number CN202022553127.X also has the above-mentioned problems. Utility Model Content

[0004] The purpose of the present utility model is to solve at least one of the technical problems existing in the prior art and provide a multimedia information display projection screen. During installation, the connecting block is inserted into the installation slot and the shift block is pushed. The shift block drives the limit plate to slide. The sliding of the limit plate pushes the inclined surface of the card block and causes the card block to slide upward. When the limit plate slides to the bottom of the slot, the card block loses its restriction and drives the card block to slide down under the action of the second spring. The limit plate is clamped by the card block, and the connecting block is clamped by the limit plate. When disassembly is required, the pull rod is pulled, and the pull rod drives the card block to slide upward, so that the limit plate loses its restriction. The limit plate loses its restriction and rebounds under the action of the first spring, thereby making the connecting block lose its restriction, thereby achieving the effect of facilitating installation and disassembly and improving operating efficiency.

[0005] The utility model also provides a multimedia information display projection screen as described above, comprising: a base, a guide slot provided inside the base, a pair of first sliders being slidably connected to the inner surface of the guide slot, a lifting mechanism being provided on the side surfaces of the pair of first sliders, a threaded rod being connected to the inner threads of the pair of first sliders, a motor being fixedly connected to the left end of the threaded rod, a pair of second sliders being fixedly connected to the end of the lifting mechanism away from the first sliders, a bracket being slidably connected to the outer surface of the pair of second sliders, the guide rod being fixedly connected to the inner side wall of the bracket, a pair of mounting blocks being fixedly connected to the front surface of the bracket, and a projection screen body being slidably connected to the side surfaces of the pair of mounting blocks;

[0006] The interior of the mounting block is provided with a mounting groove, the inner surface of the mounting groove is slidably connected to a connecting block, a first slide groove is provided inside the connecting block, the front inner wall of the first slide groove is fixedly connected to a first spring, the inner surface of the first slide groove is slidably connected to a limiting plate, a second slide groove is provided inside the mounting block, the interior of the second slide groove is slidably connected to a shift block, the upper surface of the mounting block is fixedly connected to a fixed block, a third slide groove is provided inside the fixed block, the inner surface of the third slide groove is slidably connected to a card block, the upper surface of the card block is fixedly connected to a pull rod, and the upper surface of the card block is fixedly connected to a second spring.

[0007] According to the multimedia information display projection screen, the outer surface of the threaded rod is rotatably connected to the base, and the right surface of the motor is fixedly connected to the base.

[0008] According to the multimedia information display projection screen, the outer surface of the guide rod is slidably connected to the second sliding block, and the motor is electrically connected to an external power supply.

[0009] According to the multimedia information display projection screen, the side surface of the connection block is fixedly connected to the projection screen body, and the lower surface of the limiting plate is slidably connected to the connection block.

[0010] According to the multimedia information display projection screen, the upper surface of the limiting plate is fixedly connected to the shift block, and the left surface of the limiting plate is fixedly connected to the first spring.

[0011] According to the multimedia information display projection screen, the clamping block is engaged with the inner portion of the limiting plate, and the side surface of the clamping block is fixedly connected to the mounting block.

[0012] According to the multimedia information display projection screen, the outer surface of the pull rod is slidably connected to the fixed block, and the end of the second spring away from the clamping block is fixedly connected to the top inner wall of the fixed block.

[0013] According to the multimedia information display projection screen, the shift block is T-shaped, and the first sliding groove is connected to the second sliding groove.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is the overall structural diagram of a multimedia information display projection screen of the utility model;

[0017] Figure 2 This is a rear view of the overall structure of a multimedia information display projection screen of the present invention;

[0018] Figure 3 This is a cross-sectional view of the overall structure of a multimedia information display projection screen of the present utility model;

[0019] Figure 4 The utility model is a partial structural cross-sectional view of a multimedia information display projection screen.

[0020] Legend:

[0021] 1. Base; 2. Guide slide; 3. First slider; 4. Lifting mechanism; 5. Threaded rod; 6. Motor; 7. Second slider; 8. Bracket; 9. Guide rod; 10. Mounting block; 11. Projection screen body; 12. Mounting slot; 13. Connecting block; 14. First slide; 15. First spring; 16. Limit plate; 17. Second slide; 18. Shift block; 19. Fixed block; 20. Third slide; 21. Block; 22. Pull rod; 23. Second spring. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] Reference Figure 1-4 , an embodiment of the present invention is a multimedia information display projection screen, which includes a base 1, a guide slide groove 2 is provided inside the base 1, the inner surface of the guide slide groove 2 is slidably connected to a pair of first sliders 3, the side surfaces of the pair of first sliders 3 are provided with a lifting mechanism 4, the inner threads of the pair of first sliders 3 are connected to threaded rods 5, the outer surfaces of the threaded rods 5 are rotatably connected to the base 1, the left end of the threaded rod 5 is fixedly connected to a motor 6, the motor 6 is electrically connected to an external power supply, the right surface of the motor 6 is fixedly connected to the base 1, the lifting mechanism 4 is fixedly connected to a pair of second sliders 7 at one end away from the first slider 3, the outer surfaces of the pair of second sliders 7 are slidably connected to a bracket 8, the inner side wall of the bracket 8 is fixedly connected to a guide rod 9, the outer surface of the guide rod 9 is slidably connected to the second slider 7, the front surface of the bracket 8 is fixedly connected to a pair of mounting blocks 10, and the side surfaces of the pair of mounting blocks 10 are slidably connected to the projection screen body 11.

[0024] The interior of the mounting block 10 is provided with a mounting groove 12, the inner surface of the mounting groove 12 is slidably connected with a connecting block 13, the side surface of the connecting block 13 is fixedly connected to the projection screen body 11, the interior of the connecting block 13 is provided with a first slide groove 14, the front inner wall of the first slide groove 14 is fixedly connected with a first spring 15, the inner surface of the first slide groove 14 is slidably connected with a limit plate 16, the left surface of the limit plate 16 is fixedly connected to the first spring 15, the lower surface of the limit plate 16 is slidably connected to the connecting block 13, the interior of the mounting block 10 is provided with a second slide groove 17, the first slide groove 14 is connected to the second slide groove 17, the interior of the second slide groove 17 is slidably connected with a dial Block 18, the shift block 18 is T-shaped, the upper surface of the limit plate 16 is fixedly connected to the shift block 18, the upper surface of the mounting block 10 is fixedly connected to the fixed block 19, the interior of the fixed block 19 is provided with a third slide groove 20, the inner surface of the third slide groove 20 is slidably connected with a clamping block 21, the clamping block 21 is engaged with the interior of the limit plate 16, the side surface of the clamping block 21 is fixedly connected to the mounting block 10, the upper surface of the clamping block 21 is fixedly connected to the pull rod 22, the outer surface of the pull rod 22 is slidably connected to the fixed block 19, the upper surface of the clamping block 21 is fixedly connected to the second spring 23, and the end of the second spring 23 away from the clamping block 21 is fixedly connected to the top inner wall of the fixed block 19.

[0025] Working principle: By starting the motor 6, the motor 6 drives the threaded rod 5 to rotate, the threaded rod 5 drives the first slider 3 to slide, the sliding of the first slider 3 drives the lifting mechanism 4 to rise and fall, the lifting mechanism 4 can drive the bracket 8 to rise and fall, the lifting of the bracket 8 drives the projection screen body 11 to rise and fall, thereby adjusting the height of the projection screen body 11. When installation is required, the connecting block 13 is inserted into the installation slot 12, the shifting block 18 is pushed, and the shifting block 18 drives the limiting plate 16 to slide, and the limiting plate 16 slides to push the inclined surface of the card block 21 and make the card block 21 slides upward, when the limit plate 16 slides to the bottom of the groove, the block 21 loses its restriction and is driven downward by the force of the second spring 23, and the limit plate 16 is clamped by the block 21, and the connecting block 13 is clamped by the limit plate 16. When disassembly is required, the pull rod 22 is pulled, and the pull rod 22 drives the block 21 to slide upward, so that the limit plate 16 loses its restriction, and the limit plate 16 loses its restriction and rebounds under the force of the first spring 15, so that the connecting block 13 loses its restriction, and the projection screen body 11 can be removed at this time.

[0026] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A multimedia information display projection screen, characterized in that: include: A base (1) is provided with a guide slot (2) inside the base (1), a pair of first sliders (3) are slidably connected to the inner surface of the guide slot (2), a lifting mechanism (4) is provided on the side surface of the pair of first sliders (3), a threaded rod (5) is connected to the inner thread of the pair of first sliders (3), a motor (6) is fixedly connected to the left end of the threaded rod (5), a pair of second sliders (7) are fixedly connected to the end of the lifting mechanism (4) away from the first slider (3), a bracket (8) is slidably connected to the outer surface of the pair of second sliders (7), an inner side wall of the bracket (8) is fixedly connected to a guide rod (9), a pair of mounting blocks (10) are fixedly connected to the front surface of the bracket (8), and a projection screen body (11) is slidably connected to the side surface of the pair of mounting blocks (10); The mounting block (10) is provided with a mounting groove (12) inside, the inner surface of the mounting groove (12) is slidably connected to a connecting block (13), the connecting block (13) is provided with a first sliding groove (14) inside, the front inner wall of the first sliding groove (14) is fixedly connected to a first spring (15), the inner surface of the first sliding groove (14) is slidably connected to a limiting plate (16), the mounting block (10) is provided with a second sliding groove (17), the inner surface of the second sliding groove (17) is slidably connected to a shift block (18), the upper surface of the mounting block (10) is fixedly connected to a fixed block (19), the fixed block (19) is provided with a third sliding groove (20), the inner surface of the third sliding groove (20) is slidably connected to a clamping block (21), the upper surface of the clamping block (21) is fixedly connected to a pull rod (22), and the upper surface of the clamping block (21) is fixedly connected to a second spring (23).

2. A multimedia information display projection screen according to claim 1, characterized in that: The outer surface of the threaded rod (5) is rotatably connected to the base (1), and the right surface of the motor (6) is fixedly connected to the base (1).

3. A multimedia information display projection screen according to claim 1, characterized in that: The outer surface of the guide rod (9) is slidably connected to the second slider (7), and the motor (6) is electrically connected to an external power supply.

4. A multimedia information display projection screen according to claim 1, characterized in that: The side surface of the connecting block (13) is fixedly connected to the projection screen body (11), and the lower surface of the limiting plate (16) is slidably connected to the connecting block (13).

5. The multimedia information display projection screen according to claim 1, characterized in that: The upper surface of the limiting plate (16) is fixedly connected to the shift block (18), and the left surface of the limiting plate (16) is fixedly connected to the first spring (15).

6. The multimedia information display projection screen according to claim 1, characterized in that: The clamping block (21) is engaged with the interior of the limiting plate (16), and the side surface of the clamping block (21) is fixedly connected to the mounting block (10).

7. The multimedia information display projection screen according to claim 1, characterized in that: The outer surface of the pull rod (22) is slidably connected to the fixed block (19), and the end of the second spring (23) away from the clamping block (21) is fixedly connected to the top inner wall of the fixed block (19).

8. The multimedia information display projection screen according to claim 1, characterized in that: The shift block (18) is T-shaped, and the first sliding groove (14) is connected to the second sliding groove (17).

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