Protective device

Abstract

The utility model discloses a protection device which comprises a supporting frame, a protection mechanism and an auxiliary mechanism are arranged on the supporting frame, and a plurality of installation holes are formed in the supporting frame. According to the protection device provided by the utility model, the air cushion can be controlled to fall down through the driving motor, and the air cushion can be inflated through the auxiliary mechanism, so that the multimedia teaching device is protected by the air cushion filled with a proper amount of gas, and the multimedia teaching device can be completely shielded by the air cushion filled with the gas; furthermore, when a student collides with the air cushion in the playing process, the air cushion can effectively absorb and disperse impact energy, the direct influence of impact is reduced, and the air cushion can be bent, so that the effect of protecting the multimedia teaching device is improved. And secondary injury to students and the multimedia device caused by breakage in the impact process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of protection for multimedia teaching devices, in particular to a protection device. Background Art

[0002] Multimedia teaching refers to the process of teaching, in which, according to the teaching objectives and the characteristics of the teaching objects, modern teaching media are rationally selected and used through teaching design, and organically combined with traditional teaching methods, so that they jointly participate in the entire teaching process, act on students with a variety of media information, form a reasonable teaching process structure, and achieve the optimal teaching effect.

[0003] For example, a Chinese utility model patent (CN214098706U) discloses a protective structure for a multimedia teaching device, which records: "A fixed frame and a protective device for protecting the multimedia teaching device protect the multimedia teaching device. When students play and frolic in the classroom and touch the multimedia teaching device, the multimedia teaching device will not be easily damaged, thereby protecting the normal use of the multimedia teaching device. At the same time, when the multimedia teaching device is damaged, the protective device protects the multimedia teaching device to prevent the damaged multimedia teaching device from causing harm to students and protecting the students' lives." It also records: "Current multimedia teaching devices are usually fixed on the wall. When the device is not in use, there is no device to protect the multimedia teaching device. When students in the classroom play and frolic during breaks, the multimedia teaching device is easily damaged, thereby affecting the use of the multimedia teaching device. At the same time, the damaged multimedia teaching device is easy to cause harm to students, causing injuries to students and threatening the students' lives." Technical problems.

[0004] In summary, it can be seen that the prior art utilizes a combination of fiber ropes and mobile rods to protect multimedia teaching devices and students. However, this method has the following technical problems: when students make a fuss and hit the mobile rod, the mobile rod may be broken. The broken mobile rod may increase the damage to the multimedia device and the students. In addition, the fiber rope cannot completely cover the multimedia device, and the protection effect is poor. For this reason, the present application proposes a protective device to provide a new technical solution to solve the technical problems mentioned in the above patents. Utility Model Content

[0005] Based on this, it is necessary to provide a protective device to address the above technical problems. The air cushion can be controlled to fall down by driving a motor, and the air cushion can be inflated by an auxiliary mechanism, so that the multimedia device can be protected by the air cushion filled with an appropriate amount of gas. The air cushion filled with gas can completely cover the multimedia teaching device, thereby improving the protective effect of the multimedia teaching device. When students hit the air cushion during a fight, the air cushion can effectively absorb and disperse the impact energy and reduce the direct impact of the impact. The air cushion can be bent to avoid breakage during the impact and thereby causing secondary injuries to the students and the multimedia device.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A protective device is used for protecting a multimedia teaching device.

[0008] The protective device specifically comprises:

[0009] A support frame, wherein the support frame is provided with a protection mechanism, the support frame is provided with an auxiliary mechanism, and the support frame is provided with a plurality of mounting holes;

[0010] The protection mechanism comprises a rotating rod, an air cushion, a driving assembly, a limiting assembly, and an adjusting assembly. The inner wall of the support frame is rotatably connected to the rotating rod, and the outer wall of the rotating rod is fixedly connected to the air cushion.

[0011] As a preferred embodiment of the protective device provided by the utility model, the driving assembly includes a driving motor, the driving motor is fixedly mounted on the outer wall of the support frame, the output end of the driving motor is fixedly connected to one end of the rotating rod, and the outer wall of the rotating rod and the two sides of the air cushion are respectively fixedly connected with fixed plates.

[0012] As a preferred embodiment of the protective device provided by the utility model, the limiting assembly includes an air intake pipe, the inner wall of the air cushion is fixedly connected to the air intake pipe, the inner wall of the air intake pipe is fixedly connected to a support plate, the inner wall of the support plate is slidably connected to a sliding rod, the inner wall of the air intake pipe is fixedly connected to a limiting disk, the end of the sliding rod away from the air cushion is fixedly connected to a blocking ball matched with the limiting disk, the outer sleeve of the sliding rod is provided with a spring, and the two ends of the spring are respectively fixedly connected to the outer walls of the support plate and the blocking ball.

[0013] As a preferred embodiment of the protective device provided by the utility model, the adjusting assembly includes an adjusting shell, the outer wall of the intake pipe is threadedly connected with the adjusting shell, the outer wall of the adjusting shell is provided with a plurality of filter holes, and the side of the adjusting shell close to the limiting disk is fixedly connected with a push rod adapted to the blocking ball.

[0014] As a preferred embodiment of the protective device provided by the utility model, the auxiliary mechanism includes a fan fixedly installed on the top of the support frame, the air inlet end of the fan is detachably connected to the first filter by bolts, and the air outlet end of the fan is fixedly installed with an air outlet hose.

[0015] As a preferred embodiment of the protective device provided by the utility model, the auxiliary mechanism also includes a fixed tube fixedly connected to the end of the air outlet hose away from the fan, the bottom end of the fixed tube is detachably connected to the second filter by bolts, and the outer wall of the fixed tube is fixedly connected to a plurality of rubber rings.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The protective device provided by the utility model can control the air cushion to fall down through a driving motor, and can inflate the air cushion through an auxiliary mechanism, so that the multimedia device is protected by the air cushion filled with a proper amount of gas. The air cushion filled with gas can completely cover the multimedia teaching device, thereby improving the protective effect of the multimedia teaching device, and when students collide with the air cushion during a fight, the air cushion can effectively absorb and disperse the impact energy, reducing the direct impact of the impact, and the air cushion can be bent to avoid breakage during the impact and thus causing secondary injuries to the students and the multimedia device.

[0018] The protective device provided by the utility model can drive the push rod to support the blocking ball by rotating the adjusting shell, so that the gas inside the air cushion can be released, and the air cushion can be rolled up as the rotating rod rotates. During the rolling-up process of the air cushion, the push rod continues to support the blocking ball, so that the gas inside the air cushion can be further released as it is rolled up, thereby reducing the gas inside the air cushion when it is not in use, thereby reducing the space occupied by the air cushion when it is not in use, and improving the practicality of the device.

[0019] The protective device provided by the utility model can drive the outside air to enter the air outlet hose through the first filter screen through the fan, and then flow out through the second filter screen through the fixed pipe. The fixed pipe can be inserted into the adjustment shell to fill the air cushion with gas. The rubber ring can reduce the leakage of gas during the process of inflating the air cushion, thereby reducing energy waste. Wind power can also be used to clean dust on the multimedia screen, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the overall structure of the protective device provided by the utility model;

[0022] Figure 2 A schematic diagram of the overall structure of the protective device provided by the utility model from another perspective;

[0023] Figure 3 A partial enlarged structural diagram of the auxiliary mechanism of the protective device provided by the utility model;

[0024] Figure 4 A partial enlarged structural schematic diagram of the protective device provided by the utility model;

[0025] Figure 5 A schematic cross-sectional view of a portion of the structure of the protection mechanism of the protection device provided by the utility model;

[0026] Figure 6 This is a schematic diagram of the enlarged structure of another part of the auxiliary mechanism of the protective device provided by the utility model.

[0027] The markings in the figure are as follows:

[0028] 1. Support frame; 2. Mounting hole; 3. Protection mechanism; 4. Auxiliary mechanism; 5. Drive motor; 6. Rotating rod; 7. Fixed plate; 8. Air cushion; 9. Inlet pipe; 10. Support plate; 11. Sliding rod; 12. Limiting plate; 13. Blocking ball; 14. Spring; 15. Adjusting shell; 16. Filter hole; 17. Push rod; 18. Fan; 19. First filter; 20. Exhaust hose; 21. Fixed pipe; 22. Rubber ring; 23. Second filter. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As described in the background technology, when students make a fuss and hit the moving rod, the moving rod may be broken. The broken moving rod may increase the damage to the multimedia device and the students, and the fiber rope cannot completely cover the multimedia device, so the protection effect is poor.

[0031] In order to solve this technical problem, the utility model provides a protection device, which is applied to the protection of multimedia teaching devices.

[0032] Specifically, please refer to Figure 1-Figure 2 , the protective devices specifically include:

[0033] A support frame 1, a protection mechanism 3 is provided on the support frame 1, an auxiliary mechanism 4 is provided on the support frame 1, and a plurality of mounting holes 2 are opened on the support frame 1;

[0034] The protection mechanism 3 includes a rotating rod 6, an air cushion 8, a driving assembly, a limiting assembly, and an adjusting assembly. The inner wall of the support frame 1 is rotatably connected to the rotating rod 6, and the outer wall of the rotating rod 6 is fixedly connected to the air cushion 8.

[0035] The protective device provided by the utility model can control the air cushion 8 to fall down through the driving motor 5, and can inflate the air cushion 8 through the auxiliary mechanism 4, so as to protect the multimedia device by relying on the air cushion 8 filled with a proper amount of gas. The air cushion 8 filled with gas can completely block the multimedia teaching device, thereby improving the protective effect of the multimedia teaching device, and when students collide with the air cushion 8 during fighting, the air cushion 8 can effectively absorb and disperse the impact energy, reduce the direct impact of the impact, and the air cushion 8 can be bent to avoid breakage during the impact and thus cause secondary injuries to the students and the multimedia device.

[0036] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] Please refer to Figure 2-Figure 5 , a protective device, comprising:

[0039] The driving assembly includes a driving motor 5, and the driving motor 5 is fixedly installed on the outer wall of the support frame 1. The output end of the driving motor 5 is fixedly connected to one end of the rotating rod 6. The outer wall of the rotating rod 6 and the two sides of the air cushion 8 are respectively fixedly connected with fixed plates 7. The fixed plates 7 can limit the winding of the air cushion 8 to avoid serious deviation during the winding process of the air cushion 8.

[0040] The limiting component includes an air intake pipe 9, the inner wall of the air cushion 8 is fixedly connected to the air intake pipe 9, the inner wall of the air intake pipe 9 is fixedly connected to a support plate 10, the inner wall of the support plate 10 is slidably connected to a sliding rod 11, the inner wall of the air intake pipe 9 is fixedly connected to a limiting disk 12, the limiting disk 12 is provided with a groove matched with a blocking ball 13, and a sealing gasket is fixedly connected in the groove to improve the effect of preventing air leakage, the end of the sliding rod 11 away from the air cushion 8 is fixedly connected with a blocking ball 13 matched with the limiting disk 12, the outer sleeve of the sliding rod 11 is provided with a spring 14, the spring 14 is always in a compressed state during the use of the device, and the two ends of the spring 14 are respectively fixedly connected to the outer walls of the support plate 10 and the blocking ball 13.

[0041] The adjusting assembly includes an adjusting shell 15, and the outer wall of the air inlet pipe 9 is threadedly connected to the adjusting shell 15. The outer wall of the adjusting shell 15 is provided with a plurality of filter holes 16. The side of the adjusting shell 15 close to the limiting disk 12 is fixedly connected with a push rod 17 adapted to the blocking ball 13. The rotation of the adjusting shell 15 can drive the push rod 17 to squeeze or move away the blocking ball 13 to correspond to the inflation or deflation of the air cushion 8 to meet the usage requirements.

[0042] Through the above structural design, when it is necessary to protect the device, the driving motor 5 is controlled to drive the rotating rod 6 to rotate, thereby lowering the air cushion 8. After the air cushion 8 is completely lowered, the adjusting shell 15 is rotated so that the top rod 17 supports the blocking ball 13 and squeezes the blocking ball 13 to a certain extent. During this process, the sliding rod 11 slides on the inner wall of the support plate 10, and the spring 14 is compressed accordingly. Then, the auxiliary mechanism 4 is used to inflate the air cushion 8. The gas passes through the filter hole 16 into the air inlet pipe 9, and passes through the gap between the blocking ball 13 and the limiting disk 12 to enter the air cushion 8 through the air inlet pipe 9. When the gas inside the air cushion 8 is filled to After reaching the appropriate degree, stop inflating and quickly rotate the adjusting shell 15 in the opposite direction, so that the adjusting shell 15 drives the push rod 17 to move away from the blocking ball 13, and then under the action of the air pressure inside the air cushion 8 and the elastic force of the spring 14, the blocking ball 13 and the limiting disk 12 are tightly fitted to ensure that the gas inside the air cushion 8 will not leak. When it is necessary to use the multimedia teaching device, rotate the adjusting shell 15 so that the push rod 17 supports the blocking ball 13, so that the inside of the air cushion 8 is connected with the outside world, and the gas inside the air cushion 8 is released, and the driving motor 5 is controlled to drive the rotating rod 6 to rotate, so as to reel the air cushion 8. During the reeling process, the air cushion 8 is squeezed to further release the gas inside the air cushion 8.

[0043] Embodiment 2:

[0044] The protective device provided in Example 1 is further optimized, specifically, as follows Figure 3-Figure 6As shown, the auxiliary mechanism 4 includes a fan 18 fixedly mounted on the top of the support frame 1, and the air inlet end of the fan 18 is detachably connected to a first filter 19 by bolts. The first filter 19 can reduce the entry of external dust and chalk ash into the interior of the fan 18, thereby increasing the service life of the fan 18, and an air outlet hose 20 is fixedly mounted on the air outlet end of the fan 18. The air outlet hose 20 can be bent at will, and then the fan 18 can be started and the air outlet hose 20 can be used to direct the wind to multiple positions, so as to clean the multimedia equipment and its vicinity, thereby improving the practicability of the device.

[0045] The auxiliary mechanism 4 also includes a fixed tube 21 fixedly connected to the end of the air outlet hose 20 away from the fan 18. The bottom end of the fixed tube 21 is detachably connected to a second filter screen 23 by bolts. The outer wall of the fixed tube 21 is fixedly connected to a plurality of rubber rings 22. The rubber rings 22 reduce wind leakage, thereby improving the efficiency of inflating the air cushion 8 and reducing energy consumption.

[0046] Through the above-mentioned structural design, the fixed tube 21 is inserted into the regulating shell 15. During this process, the rubber ring 22 is squeezed and deformed to a certain extent, and the fan 18 is started, so that the external air is transmitted to the air outlet hose 20 through the first filter 19, and then enters the fixed tube 21, and enters the interior of the regulating shell 15 through the second filter 23.

Claims

1. A protective device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a protection mechanism (3), the support frame (1) is provided with an auxiliary mechanism (4), and the support frame (1) is provided with a plurality of mounting holes (2); The protection mechanism (3) comprises a rotating rod (6), an air cushion (8), a driving assembly, a limiting assembly, and an adjusting assembly; the inner wall of the support frame (1) is rotatably connected to the rotating rod (6), and the outer wall of the rotating rod (6) is fixedly connected to the air cushion (8).

2. The protective device according to claim 1, characterized in that: The driving assembly comprises a driving motor (5), the driving motor (5) being fixedly mounted on the outer wall of the supporting frame (1), the output end of the driving motor (5) being fixedly connected to one end of a rotating rod (6), and the outer wall of the rotating rod (6) and located on both sides of the air cushion (8) are respectively fixedly connected to fixed plates (7).

3. The protective device according to claim 1, characterized in that: The limiting component comprises an air intake pipe (9), the inner wall of the air cushion (8) is fixedly connected to the air intake pipe (9), the inner wall of the air intake pipe (9) is fixedly connected to a support plate (10), the inner wall of the support plate (10) is slidably connected to a sliding rod (11), the inner wall of the air intake pipe (9) is fixedly connected to a limiting disk (12), the end of the sliding rod (11) away from the air cushion (8) is fixedly connected to a blocking ball (13) matched with the limiting disk (12), the outer sleeve of the sliding rod (11) is provided with a spring (14), and the two ends of the spring (14) are respectively fixedly connected to the outer walls of the support plate (10) and the blocking ball (13).

4. The protection device according to claim 3, characterized in that: The regulating assembly comprises a regulating shell (15), the outer wall of the air inlet pipe (9) is threadedly connected to the regulating shell (15), the outer wall of the regulating shell (15) is provided with a plurality of filter holes (16), and a push rod (17) adapted to the blocking ball (13) is fixedly connected to a side of the regulating shell (15) close to the limiting disk (12).

5. The protection device according to claim 1, characterized in that: The auxiliary mechanism (4) comprises a fan (18) fixedly mounted on the top of the support frame (1); an air inlet end of the fan (18) is detachably connected to a first filter screen (19) via bolts; and an air outlet hose (20) is fixedly mounted on an air outlet end of the fan (18).

6. The protection device according to claim 5, characterized in that: The auxiliary mechanism (4) further comprises a fixed pipe (21) fixedly connected to an end of the air outlet hose (20) away from the fan (18); the bottom end of the fixed pipe (21) is detachably connected to a second filter screen (23) via bolts; and the outer wall of the fixed pipe (21) is fixedly connected to a plurality of rubber rings (22).

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