Display terminal convenient for auxiliary teaching

Abstract

The utility model relates to the technical field of teaching display equipment, and discloses a display terminal convenient for auxiliary teaching, which comprises a display screen, anti-falling mechanisms are arranged at the rear parts of the left and right sides of the display screen, a cleaning mechanism is arranged at the front part of the display screen, and a lifting mechanism is arranged at the middle part of the rear side of the display screen. The upper end and the lower end of the sliding rod are fixedly connected to the left side of the display screen, and the upper end and the lower end of the threaded rod are rotationally connected to the right side of the display screen. According to the display terminal facilitating teaching assistance, the display screen is wiped through the cleaning roller, dust on the surface of the display screen is prevented from affecting watching of students, when the display screen moves up and down, an electromagnet is powered on, the electromagnet attracts a clamping block, the clamping block compresses a spring and retracts into a sliding block, and when the display screen moves in place, the display screen is driven to rotate. When the lifting mechanism is damaged, the electromagnet is powered off, the spring drives the clamping block to reset, the clamping block is inserted into the limiting hole, and the display screen is prevented from falling when the lifting mechanism is damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching display equipment, in particular to a display terminal which is convenient for assisting teaching. Background Art

[0002] As an important medium for information display, multimedia display devices are becoming more and more closely related to our lives in today's era of rapid development of information technology. Multimedia display devices are widely used in office and teaching occasions. However, most of the existing multimedia display devices are fixedly installed in specific locations, the height is not easy to adjust, and a large amount of dust is easily attached to the surface, which greatly affects students' viewing. Utility Model Content

[0003] The main purpose of the utility model is to provide a display terminal that is convenient for assisting teaching and can effectively solve the problems in the background technology.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a display terminal for auxiliary teaching, including a display screen, an anti-falling mechanism is arranged at the rear of the left and right sides of the display screen, a cleaning mechanism is arranged at the front of the display screen, and a lifting mechanism is arranged at the middle of the rear side of the display screen;

[0005] The cleaning mechanism includes a sliding rod, two left and right connecting blocks, a threaded rod, a second reduction motor and a cleaning roller. The upper and lower ends of the sliding rod are fixedly connected to the left side of the display screen, the upper and lower ends of the threaded rod are rotatably connected to the right side of the display screen, the second reduction motor is installed on the upper right side of the display screen, the lower output end of the second reduction motor is fixedly connected to the upper end of the threaded rod, the front part of the connecting block is arranged on the left and right sides of the cleaning roller, the rear side of the left connecting block is slidably connected to the outer periphery of the sliding rod, and the rear side of the right connecting block is threadedly connected to the outer periphery of the threaded rod.

[0006] Preferably, a pure cotton lint-free cloth is provided on the periphery of the cleaning roller.

[0007] Preferably, the lifting mechanism includes a second fixing seat, a lifting assembly, a connecting seat and a reduction motor, the upper end of the lifting assembly is rotatably connected to the lower part of the second fixing seat, the lower end of the lifting assembly is rotatably connected to the middle part of the connecting seat, one side of the connecting seat is installed in the middle of the rear side of the display screen, the reduction motor is installed on one side of the connecting seat, and the output end of the reduction motor passes through the connecting seat and is fixedly connected to the lower end of the lifting assembly.

[0008] Preferably, the lifting assembly includes a limit sleeve, a connecting shell, a gear ring, a limit rod, a gear and a servo motor. The upper part of the connecting shell is installed on the lower part of the limit sleeve, the outer periphery of the limit rod passes through the connecting shell and is slidably connected to the inside of the limit sleeve, the gear ring and the gear are both rotatably connected to the inside of the connecting shell, the middle part of the gear ring is threadedly connected to the outer periphery of the limit rod, the gear ring and the gear are meshed with each other, and the servo motor is installed on the upper part of the connecting shell, and the lower end of the servo motor passes through the connecting shell and is fixedly connected to the middle part of the gear.

[0009] Preferably, the anti-fall mechanism includes a fixed seat, a connecting rod, a limiting groove, a limiting hole, a slider, a partition, a spring and a block. The upper end of the connecting rod is rotatably connected to the middle part of the fixed seat, the lower end of the connecting rod is rotatably connected to the upper part of the slider, the outer periphery of the partition is fixedly connected to the middle part of the slider, the outer periphery of the block is arranged on the left and right sides of the slider, a spring is arranged between the partition and the block, a plurality of limiting holes are opened on the left and right sides of the limiting groove, the outer periphery of the slider is slidably connected to the inside of the limiting groove, the outer periphery of the block is arranged inside the limiting hole, and the limiting groove is installed on the left and right sides of the display screen.

[0010] Preferably, electromagnets are provided in the middle of the left and right sides of the partition.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The cleaning roller is limited by the sliding rod, and the reduction motor 2 is driven to rotate the threaded rod while driving the cleaning roller to move up and down, so that the display screen is wiped by the cleaning roller to prevent the dust on the surface of the display screen from affecting students' viewing.

[0013] 2. The limit rod is restricted by the limit sleeve so that the limit rod cannot rotate relative to the limit sleeve, and the servo motor is driven to make the gear drive the gear ring to rotate, so that the limit rod drives the display screen to move up and down. When the display screen moves up and down, the electromagnet is energized so that the electromagnet attracts the card block, so that the card block compresses the spring and retracts into the slider. When the display screen moves into place, the electromagnet is de-energized so that the spring drives the card block to reset, so that the card block is inserted into the limit hole, thereby preventing the display screen from falling when the lifting mechanism is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a cleaning mechanism of a display terminal that is convenient for auxiliary teaching in the utility model;

[0015] Figure 2 This is a schematic diagram of the rear three-dimensional structure of a display terminal for assisting teaching according to the utility model;

[0016] Figure 3This is a schematic diagram of the gear structure of a display terminal that is convenient for auxiliary teaching in the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the anti-falling mechanism structure of a display terminal which is convenient for auxiliary teaching.

[0018] In the figure: 1. anti-fall mechanism; 101. fixed seat 1; 102. connecting rod; 103. limiting groove; 104. limiting hole; 105. sliding block; 106. partition; 107. spring; 108. clamping block; 109. electromagnet; 2. lifting mechanism; 201. fixed seat 2; 202. lifting assembly; 2021. limiting sleeve; 2022. connecting shell; 2023. gear ring; 2024. limiting rod; 2025. gear; 2026. servo motor; 203. connecting seat; 204. reduction motor 1; 3. display screen; 4. cleaning mechanism; 401. sliding rod; 402. connecting block; 403. threaded rod; 404. reduction motor 2; 405. cleaning roller. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4 As shown, a display terminal convenient for auxiliary teaching includes a display screen 3, an anti-falling mechanism 1 is arranged at the rear of the left and right sides of the display screen 3, a cleaning mechanism 4 is arranged at the front of the display screen 3, and a lifting mechanism 2 is arranged at the middle of the rear side of the display screen 3.

[0021] In this embodiment, the cleaning mechanism 4 includes a sliding rod 401, two left and right connecting blocks 402, a threaded rod 403, a reduction motor 404 and a cleaning roller 405. The upper and lower ends of the sliding rod 401 are fixedly connected to the left side of the display screen 3, the upper and lower ends of the threaded rod 403 are rotatably connected to the right side of the display screen 3, the reduction motor 404 is installed on the upper right side of the display screen 3, the lower output end of the reduction motor 404 is fixedly connected to the upper end of the threaded rod 403, the front part of the connecting block 402 is arranged on the left and right sides of the cleaning roller 405, the rear side of the left connecting block 402 is slidably connected to the outer periphery of the sliding rod 401, the rear side of the right connecting block 402 is threadedly connected to the outer periphery of the threaded rod 403, and the outer periphery of the cleaning roller 405 is provided with a pure cotton lint-free cloth.

[0022] Specifically, the cleaning roller 405 is limited by the sliding rod 401, and the reduction motor 404 is driven to make the threaded rod 403 rotate while driving the cleaning roller 405 to move up and down, so that the display screen 3 is wiped by the cleaning roller 405 to prevent the dust on the surface of the display screen 3 from affecting the students' viewing.

[0023] In this embodiment, the lifting mechanism 2 includes a fixed seat 201, a lifting component 202, a connecting seat 203 and a reduction motor 1 204. The upper end of the lifting component 202 is rotatably connected to the lower part of the fixed seat 201, and the lower end of the lifting component 202 is rotatably connected to the middle of the connecting seat 203. One side of the connecting seat 203 is installed in the middle of the rear side of the display screen 3. The reduction motor 1 204 is installed on one side of the connecting seat 203. The output end of the reduction motor 1 204 passes through the connecting seat 203 and is fixedly connected to the lower end of the lifting component 202. The assembly 202 includes a limiting sleeve 2021, a connecting shell 2022, a gear ring 2023, a limiting rod 2024, a gear 2025 and a servo motor 2026. The upper part of the connecting shell 2022 is installed on the lower part of the limiting sleeve 2021. The outer periphery of the limiting rod 2024 passes through the connecting shell 2022 and is slidably connected to the inside of the limiting sleeve 2021. The gear ring 2023 and the gear 2025 are both rotatably connected to the inside of the connecting shell 2022. The middle part of the gear ring 2023 is threadedly connected to the outer periphery of the limiting rod 2024. 23 and the gear 2025 are meshed with each other, the servo motor 2026 is installed on the upper part of the connecting shell 2022, the lower end of the servo motor 2026 passes through the connecting shell 2022 and is fixedly connected to the middle part of the gear 2025, the anti-fall mechanism 1 includes a fixing seat 101, a connecting rod 102, a limiting groove 103, a limiting hole 104, a slider 105, a partition 106, a spring 107 and a block 108, the upper end of the connecting rod 102 is rotatably connected to the middle part of the fixing seat 101, and the lower end of the connecting rod 102 is rotatably connected to the slider 10 5, the outer periphery of the partition 106 is fixedly connected to the middle of the slider 105, the outer periphery of the clamping block 108 is arranged on the left and right sides of the slider 105, a spring 107 is arranged between the partition 106 and the clamping block 108, a plurality of limiting holes 104 are opened on the left and right sides of the limiting groove 103, the outer periphery of the slider 105 is slidably connected to the inside of the limiting groove 103, the outer periphery of the clamping block 108 is arranged in the limiting hole 104, the limiting groove 103 is installed on the left and right sides of the display screen 3, and an electromagnet 109 is arranged in the middle of the left and right sides of the partition 106.

[0024] Specifically, the limiting rod 2024 is restricted by the limiting sleeve 2021, so that the limiting rod 2024 cannot rotate relative to the limiting sleeve 2021, and the servo motor 2026 is driven to make the gear 2025 drive the gear ring 2023 to rotate, so that the limiting rod 2024 drives the display screen 3 to move up and down. When the display screen 3 moves up and down, the electromagnet 109 is energized, so that the electromagnet 109 attracts the block 108, so that the block 108 compresses the spring 107 and retracts into the slider 105. When the display screen 3 moves into place, the electromagnet 109 is de-energized, so that the spring 107 drives the block 108 to reset, so that the block 108 is inserted into the limiting hole 104, thereby preventing the display screen 3 from falling when the lifting mechanism 2 is damaged.

[0025] Working principle:

[0026] The cleaning roller 405 is limited by the sliding rod 401, and the reduction motor 204 is driven to make the threaded rod 403 rotate while driving the cleaning roller 405 to move up and down, so that the display screen 3 is wiped by the cleaning roller 405 to prevent the dust on the surface of the display screen 3 from affecting the students' viewing. The limiting rod 2024 is limited by the limiting sleeve 2021, so that the limiting rod 2024 cannot rotate relative to the limiting sleeve 2021, and the servo motor 2026 is driven to make the gear 2025 drive the gear ring 2 023 rotates, so that the limiting rod 2024 drives the display screen 3 to move up and down. When the display screen 3 moves up and down, the electromagnet 109 is energized, so that the electromagnet 109 attracts the block 108, so that the block 108 compresses the spring 107 and retracts into the slider 105. When the display screen 3 moves into place, the electromagnet 109 is de-energized, so that the spring 107 drives the block 108 to reset, so that the block 108 is inserted into the limiting hole 104, thereby preventing the display screen 3 from falling when the lifting mechanism 2 is damaged.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A display terminal for assisting teaching, comprising a display screen (3), characterized in that: The display screen (3) is provided with an anti-falling mechanism (1) at the rear of the left and right sides, a cleaning mechanism (4) is provided at the front of the display screen (3), and a lifting mechanism (2) is provided at the middle of the rear side of the display screen (3); The cleaning mechanism (4) comprises a sliding rod (401), two left and right connecting blocks (402), a threaded rod (403), a second reduction motor (404) and a cleaning roller (405); the upper and lower ends of the sliding rod (401) are fixedly connected to the left side of the display screen (3); the upper and lower ends of the threaded rod (403) are rotatably connected to the right side of the display screen (3); the second reduction motor (404) is installed on the upper right side of the display screen (3); the lower output end of the second reduction motor (404) is fixedly connected to the upper end of the threaded rod (403); the front part of the connecting block (402) is arranged on the left and right sides of the cleaning roller (405); the rear side of the left connecting block (402) is slidably connected to the outer periphery of the sliding rod (401); and the rear side of the right connecting block (402) is threadedly connected to the outer periphery of the threaded rod (403).

2. A display terminal for assisting teaching according to claim 1, characterized in that: The outer periphery of the cleaning roller (405) is provided with pure cotton lint-free cloth.

3. A display terminal for assisting teaching according to claim 1, characterized in that: The lifting mechanism (2) comprises a second fixing seat (201), a lifting assembly (202), a connecting seat (203) and a first reduction motor (204); the upper end of the lifting assembly (202) is rotatably connected to the lower part of the second fixing seat (201); the lower end of the lifting assembly (202) is rotatably connected to the middle part of the connecting seat (203); one side of the connecting seat (203) is mounted on the middle part of the rear side of the display screen (3); the first reduction motor (204) is mounted on one side of the connecting seat (203); and the output end of the first reduction motor (204) passes through the connecting seat (203) and is fixedly connected to the lower end of the lifting assembly (202).

4. A display terminal for assisting teaching according to claim 3, characterized in that: The lifting assembly (202) comprises a limiting sleeve (2021), a connecting shell (2022), a gear ring (2023), a limiting rod (2024), a gear (2025) and a servo motor (2026); the upper portion of the connecting shell (2022) is mounted on the lower portion of the limiting sleeve (2021); the outer circumference of the limiting rod (2024) passes through the connecting shell (2022) and is slidably connected to the inside of the limiting sleeve (2021); the gear ring (2023) is mounted on the lower portion of the limiting sleeve (2021); The gear (2025) and the servo motor (2026) are both rotatably connected inside the connecting shell (2022), the middle part of the gear ring (2023) is threadedly connected to the outer periphery of the limiting rod (2024), the gear ring (2023) and the gear (2025) are meshed with each other, the servo motor (2026) is installed on the upper part of the connecting shell (2022), and the lower end of the servo motor (2026) passes through the connecting shell (2022) and is fixedly connected to the middle part of the gear (2025).

5. A display terminal for assisting teaching according to claim 1, characterized in that: The anti-fall mechanism (1) comprises a fixing seat (101), a connecting rod (102), a limiting groove (103), a limiting hole (104), a slider (105), a partition (106), a spring (107) and a clamping block (108); the upper end of the connecting rod (102) is rotatably connected to the middle of the fixing seat (101); the lower end of the connecting rod (102) is rotatably connected to the upper part of the slider (105); the outer periphery of the partition (106) is fixedly connected to the middle of the slider (105); The outer periphery of the card block (108) is arranged on the left and right sides of the slider (105); a spring (107) is arranged between the partition (106) and the card block (108); a plurality of limiting holes (104) are opened on the left and right sides of the limiting groove (103); the outer periphery of the slider (105) is slidably connected to the inside of the limiting groove (103); the outer periphery of the card block (108) is arranged inside the limiting hole (104); and the limiting groove (103) is installed on the left and right sides of the display screen (3).

6. A display terminal for assisting teaching according to claim 5, characterized in that: Electromagnets (109) are arranged in the middle of the left and right sides of the partition (106).

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