A computer software presentation device that is easy to install

Abstract

The application discloses a computer software demonstration device convenient to install, and relates to the technical field of computer software demonstration devices.The computer software demonstration device convenient to install comprises a shell, supporting legs are fixed to the bottom of the shell, sliding rails are fixed to the shell, a display is placed on the sliding rails, an inner wall of the shell is fixed with a partition plate, a motor is fixed to the partition plate, an output end of the motor is fixed with a rotating rod, the rotating rod penetrates through and rotates on the partition plate, end points of the rotating rod are fixed with fan blades, and a filter plate is fixed to the top of the shell.The computer software demonstration device convenient to install can realize the quick installation of the display and the shell through the following steps: a worker places the display on the sliding rails, slides the display together with the sliding rails to the inside of the shell, the display extrudes the baffle, the two groups of baffles are away from each other, when the display is pushed to the inside of the shell, the display no longer extrudes the baffle, the baffles are close to each other to limit the position of the display, and the display and the shell can be quickly installed.

Description

Technical Field

[0001] This invention relates to the field of computer software demonstration devices, specifically to a computer software demonstration device that is easy to install. Background Technology

[0002] Various software programs are used on computers. In order to demonstrate the functions and operation of the software, computer software demonstration devices are needed. However, current computer software demonstration devices still have many shortcomings.

[0003] Patent publication number CN216118753U describes an easy-to-install computer software demonstration device, comprising a base, a connecting shell fixedly mounted on the upper surface of the base, and a motor fixedly mounted on the outer right side of the connecting shell by bolts. An adjusting rod is fixedly mounted on the output end of the motor. A receiving plate is fixedly mounted inside the left side of the connecting shell, and the receiving plate is rotatably connected to the left end of the adjusting rod. A support rod is fixedly mounted on the right side of the receiving plate and located outside the adjusting rod, and a connecting block is fixedly mounted on the left end of the receiving plate. A movable block is connected to the outside of the adjusting rod and the support rod, and a second moving rod and a first moving rod are respectively connected to the outer ends of the movable blocks on the left and right sides of the adjusting rod. However, this computer software demonstration device is inconvenient for operators to install on a monitor. After installation, it lacks the function of shielding the monitor from light, thus causing discomfort to the user's eyes when sunlight or artificial light shines on the monitor surface, making it difficult for the user to view the monitor clearly. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a computer software demonstration device that is easy to install, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a computer software demonstration device that is easy to install, comprising a housing, a support leg fixed to the bottom of the housing, a slide rail fixed to the housing, a display placed on the slide rail, a partition fixed to the inner wall of the housing, a motor fixed to the partition, a rotating rod fixed to the output end of the motor, the rotating rod passing through and rotating on the partition, a fan blade fixed to the end of the rotating rod, a filter plate fixed to the top of the housing, a limit device, a light-shielding device, and a dustproof device on the housing; The limiting device includes a baffle, a compression spring, a fixing block, a slider, a limiting block, a limiting spring, a pull plate, and a limiting hole. The baffle slides on the housing, which has a cavity. A compression spring is fixed on the baffle, and the end of the compression spring is fixed to the cavity on the housing. The operator places the monitor on the slide rail and slides the monitor and the slide rail into the housing. When the monitor slides into the housing, it compresses the baffle, causing the two sets of baffles to be compressed and move away from each other. When the monitor is pushed into the housing, the monitor no longer compresses the baffle, and the baffles move closer together under the action of the compression spring, limiting the position of the monitor.

[0006] According to the above technical solution, the fixing block is fixed to the outer wall of the shell, the slider slides on the inner wall of the fixing block, the end of the slider is fixed to a limit block, the limit block is fixed to a limit spring, the end of the limit spring is fixed to the fixing block, the pull plate is fixed to the baffle, and the pull plate has a limit hole. After the demonstration is completed, the staff pulls the two sets of pull plates away from each other, so that the pull plates slide on the slider. As the pull plates slide, when the pull plates no longer squeeze the slider, the slider is extended into the limit hole by the elastic force of the limit spring, so that the positions of the two sets of pull plates are restricted to be far apart.

[0007] According to the above technical solution, the light-shielding device includes a light-shielding plate, a limiting rod, a pressure spring, a guide block, a push rod, a sliding spring, a connecting rod, and a push plate. The housing has a slot, and the light-shielding plate slides on the slot of the housing.

[0008] According to the above technical solution, a slot is provided in the groove of the housing, a limit rod is fixed on the light shield, the limit rod slides in the slot, a pressure spring is fixed on the light shield, and the end of the pressure spring is fixed to the inner wall of the groove. When the two sets of baffles move away from each other, the two sets of baffles no longer squeeze the light shield, so that the light shield slides out of the groove from the inside of the housing under the action of the limit spring.

[0009] According to the above technical solution, a guide block is fixed at the bottom of the slot of the housing, and a slot is opened on the push rod. The guide block slides in the slot of the push rod, and a sliding spring is fixed on the guide block. The end of the sliding spring is fixed in the slot on the push rod. When the light shield slides out of the slot of the housing, the light shield no longer presses the push rod, so that the push rod slides towards the display under the action of the sliding spring.

[0010] According to the above technical solution, a connecting rod is fixed on the push rod, the connecting rod slides on the housing, and a push plate is fixed at the end of the connecting rod. The push rod slides towards the display, which in turn slides the connecting rod towards the display, and the connecting rod slides towards the display, which in turn slides the push plate towards the display, so that the push plate contacts and presses against the back of the display.

[0011] According to the above technical solution, the dustproof device includes a squeezing block, a sliding rod, a squeezing plate, a dustproof plate, a support spring, a hinge rod, and a sliding plate. The squeezing block is fixed on the push rod, the sliding rod slides on the top of the housing, the bottom of the sliding rod is fixed with the squeezing plate, and the top of the sliding rod is fixed with the dustproof plate. When the push rod moves towards the display, the push rod moves the squeezing block towards the display, so that the squeezing block no longer squeezes the squeezing plate, and the dustproof plate moves upward under the elastic force of the support spring, exposing the filter plate above the housing, allowing air inside the housing to circulate vertically. When the push rod slides the squeezing block in the opposite direction to the display, the squeezing block squeezes the squeezing plate, causing the squeezing plate to move downward with the sliding rod, and the downward movement of the sliding rod causes the dustproof plate to move downward, thus blocking the filter plate.

[0012] According to the above technical solution, the support spring is fixed to the bottom of the dust cover plate, the end point of the support spring is fixed to the top of the housing, the bottom of the dust cover plate is hinged with a hinge rod, the end point of the hinge rod is hinged to the slide plate, the slide plate slides above the housing, when the dust cover plate moves downward, the dust cover plate moves downward with the hinge rod, so that the hinge rod squeezes the slide plate, so that the four sets of slide plates slide away from each other, so that large dust particles above the housing are pushed away from the dust cover plate by the slide plate, so that the dust cover plate is not affected by large dust particles when it moves downward.

[0013] This invention provides a computer software demonstration device that is easy to install. It has the following advantages: 1. This invention features a limiting device. The operator places the monitor on the slide rail and slides the monitor, along with the slide rail, into the housing. The monitor presses against the baffles, causing the two sets of baffles to move away from each other. When the monitor is pushed into the housing, it no longer presses against the baffles, allowing the baffles to move closer together and restrict the monitor's position. This enables quick installation of the monitor and housing, preventing the monitor from tilting forward and damaging it. This solves the problems of cumbersome and slow monitor-housing assembly. After the demonstration, the operator pulls the two sets of pull plates away from each other, causing them to stop pressing against the sliders and allowing the sliders to slide into the limiting holes. This prevents the baffles from obstructing the monitor's position, facilitating quick separation of the monitor and housing. This solves the problems of numerous and slow disassembly steps for separating the monitor and housing.

[0014] 2. This invention is equipped with a light-shielding device. When the two sets of baffles move away from each other, they no longer press against the light-shielding plate. Under the action of the limiting spring, the light-shielding plate slides out of the slot in the housing, preventing the light source from shining on the display screen and causing glare. This improves the display effect and avoids glare that could damage the eyes of viewers. This solves the problems of the light source affecting the display effect and the glare from the light source affecting the eyes of viewers. When the light-shielding plate slides out of the slot in the housing, it no longer presses against the push rod. Under the action of the sliding spring, the push rod slides towards the display, causing the connecting rod to slide towards the display with the push plate. The push plate then contacts and presses against the back of the display, fixing the back of the display in place. This prevents the display from being accidentally touched by staff and tipping into the housing, thus preventing damage. This solves the problem of the display easily tipping over when accidentally touched.

[0015] 3. This invention incorporates a dustproof device. When the push rod moves towards the display, it moves the squeezing block towards the display, causing the squeezing block to stop squeezing the squeezing plate. This allows the dustproof plate to shift upwards under the support spring force, exposing the filter plate above the housing. This allows air to circulate vertically inside the housing, and when the fan blades rotate, air can flow from bottom to top. Simultaneously, the dustproof plate prevents dust from directly settling onto the filter plate. When the push rod slides in the opposite direction to the display, the squeezing block squeezes the squeezing plate, causing the squeezing plate, along with the sliding rod and dustproof plate, to shift downwards. This allows the dustproof plate to cover the filter plate. Simultaneously, when the dustproof plate covers the filter plate, it prevents dust and large particles from drifting from the side to the top of the filter plate and also prevents insects from entering. The dust particles that climb onto the filter plate and form webs can clog it, hindering airflow and affecting fan cooling. This solves the problem of dust or insects clogging the filter plate and reducing its cooling efficiency. Simultaneously, when the dust shield moves downwards, it moves the hinge rod downwards as well, causing the sliding plates to slide away from each other. This pushes large dust particles away from the dust shield, preventing them from affecting its downward movement and ensuring a closer fit between the dust shield and the shell. When the dust shield moves upwards, the hinge rod moves upwards, causing the four sliding plates to slide closer together. This prevents rainwater from flowing into the inner wall of the shell through the gaps in the filter plate at the top, thus avoiding damage to internal electronic components. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of part of the structure of the present invention; Figure 4 This is a partial structural diagram of the present invention; Figure 5 This is a partial structural diagram of the limiting device and the light-shielding device of the present invention; Figure 6 This is a schematic diagram of the light-shielding device of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the shell of the present invention.

[0017] In the diagram: 1. Housing; 2. Support leg; 3. Slide rail; 4. Display; 5. Motor; 6. Rotating rod; 7. Fan blade; 8. Filter plate; 9. Limiting device; 10. Light-shielding device; 11. Dustproof device; 901. Baffle; 902. Compression spring; 903. Fixing block; 904. Slider; 905. Limiting block; 906. Limiting spring; 907. Pull plate; 908. Limiting hole; 1001. Light-shielding plate; 1002. Limiting rod; 1003. Pressure spring; 1004. Guide block; 1005. Push rod; 1006. Sliding spring; 1007. Connecting rod; 1008. Push plate; 1101. Compression block; 1102. Slide rod; 1103. Compression plate; 1104. Dustproof plate; 1105. Supporting spring; 1106. Hinge rod; 1107. Slide plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-7One embodiment of the present invention is as follows: a computer software demonstration device that is easy to install includes a housing 1, a support leg 2 fixed to the bottom of the housing 1, a slide rail 3 fixed to the housing 1, a display 4 placed on the slide rail 3, a partition fixed to the inner wall of the housing 1, a motor 5 fixed to the partition, a rotating rod 6 fixed to the output end of the motor 5, the rotating rod 6 passing through and rotating on the partition, a fan blade 7 fixed to the end of the rotating rod 6, a filter plate 8 fixed to the top of the housing 1, and a limiting device 9 provided on the housing 1 to facilitate the installation of the display 4; wherein, the limiting device 9 includes a baffle 901, a compression spring 902, a fixing block 903, and a slider 904. The device includes a limiting block 905, a limiting spring 906, a pull plate 907, and a limiting hole 908. A baffle 901 slides on the housing 1, and a cavity is provided on the housing 1. A compression spring 902 is fixed on the baffle 901, and the end of the compression spring 902 is fixed to the cavity on the housing 1. A fixing block 903 is fixed to the outer wall of the housing 1. A slider 904 slides on the inner wall of the fixing block 903, and a limiting block 905 is fixed to the end of the slider 904. A limiting spring 906 is fixed on the limiting block 905, and the end of the limiting spring 906 is fixed to the fixing block 903. A pull plate 907 is fixed on the baffle 901, and a limiting hole 908 is provided on the pull plate 907.

[0020] The staff places the monitor 4 on the slide rail 3 and slides the monitor 4 along with the slide rail 3 into the housing 1. The monitor 4 presses against the baffle 901, causing the two sets of baffles 901 to move away from each other. When the monitor 4 is pushed into the housing 1, the monitor 4 no longer presses against the baffle 901, causing the baffles 901 to move closer to each other and restrict the position of the monitor 4. This enables the monitor 4 to be quickly installed on the housing 1, avoids the monitor 4 from tilting forward and thus preventing damage to the monitor 4, and solves the problems of cumbersome and slow assembly of the monitor 4 and the housing 1. After the demonstration is completed, the staff pulls the two sets of pull plates 907 away from each other, so that the pull plates 907 no longer squeeze the sliders 904, allowing the two sets of sliders 904 to slide into the limiting holes 908, so that the two sets of baffles 901 no longer block or restrict the position of the display 4, making it easier for the staff to quickly separate the display 4 from the housing 1, solving the problem of multiple steps and slow speed in disassembling and separating the display 4 from the housing 1.

[0021] In this embodiment, during operation: the operator places the monitor 4 on the slide rail 3 and slides the monitor 4 along with the slide rail 3 into the housing 1. As the monitor 4 slides into the housing 1, it presses against the baffles 901, causing the two sets of baffles 901 to move away from each other under pressure. When the monitor 4 is pushed into the housing 1, it no longer presses against the baffles 901, and the baffles 901, under the action of the compression springs 902, move closer together to restrict the position of the monitor 4. This enables rapid positioning of the monitor 4 and the housing 1. After the demonstration is completed, the operator... The operator pulls the two sets of pull plates 907 away from each other, causing the pull plates 907 to slide on the slider 904. As the pull plates 907 slide, when the pull plates 907 no longer press against the slider 904, the slider 904 is extended into the limiting hole 908 by the elastic force of the limiting spring 906, so that the positions of the two sets of pull plates 907 are restricted to be far apart. The position of the pull plates 907 being far apart from each other, along with the baffles 901 being restricted to be far apart from each other, means that the two sets of baffles 901 no longer block or restrict the position of the display 4, making it convenient for the operator to remove the display 4 device.

[0022] Please see Figures 1-7 Based on the above embodiments, in another embodiment of the present invention, a light-shielding device 10 is provided on the housing 1 to facilitate the viewing of the display 4 by the staff. A dustproof device 11 is provided on the housing 1. The light-shielding device 10 includes a light-shielding plate 1001, a limiting rod 1002, a pressure spring 1003, a guide block 1004, a push rod 1005, a sliding spring 1006, a connecting rod 1007, and a push plate 1008. A slot is opened on the housing 1, and the light-shielding plate 1001 slides on the slot of the housing 1. A slot hole is opened in the slot of the housing 1. The limiting rod 1002 is fixed on the light-shielding plate 1001. 1002 slides in the slot. A pressure spring 1003 is fixed on the light shield 1001. The end of the pressure spring 1003 is fixed to the inner wall of the slot. A guide block 1004 is fixed at the bottom of the slot of the housing 1. A slot is opened on the push rod 1005. The guide block 1004 slides in the slot of the push rod 1005. A sliding spring 1006 is fixed on the guide block 1004. The end of the sliding spring 1006 is fixed in the slot on the push rod 1005. A connecting rod 1007 is fixed on the push rod 1005. The connecting rod 1007 slides on the housing 1. A push plate 1008 is fixed at the end of the connecting rod 1007.

[0023] When the two sets of baffles 901 move away from each other, the two sets of baffles 901 no longer press against the light shield 1001, so that the light shield 1001 slides out of the slot of the housing 1 under the elastic force of the limiting spring 906, thus preventing the light source above from shining on the display screen and causing glare on the display screen, making the demonstration effect of the demonstration device better, and at the same time avoiding the glare, solving the problem of the light source above affecting the display effect; When the light shield 1001 slides out of the slot of the housing 1, the light shield 1001 no longer presses against the push rod 1005, causing the push rod 1005 to slide towards the display 4 under the action of the sliding spring 1006. This causes the connecting rod 1007 to slide towards the display 4 with the push plate 1008, so that the push plate 1008 contacts and presses against the back of the display 4, thus restricting and fixing the back of the display 4. This prevents the display 4 from being accidentally touched by the staff and thus tipping into the housing 1 and damaging the display 4, solving the problem that the display 4 is easy to tip over if accidentally touched.

[0024] The dustproof device 11 includes a pressing block 1101, a sliding rod 1102, a pressing plate 1103, a dust shield 1104, a support spring 1105, a hinge rod 1106, and a sliding plate 1107. The pressing block 1101 is fixed on the push rod 1005. The sliding rod 1102 slides on the top of the housing 1. The pressing plate 1103 is fixed to the bottom of the sliding rod 1102. The dust shield 1104 is fixed to the top of the sliding rod 1102. The support spring 1105 is fixed to the bottom of the dust shield 1104. The end of the support spring 1105 is fixed to the top of the housing 1. The bottom of the dust shield 1104 is hinged to the hinge rod 1106. The end of the hinge rod 1106 is hinged to the sliding plate 1107. The sliding plate 1107 slides on the top of the housing 1.

[0025] When push rod 1005 moves towards display 4, push rod 1005 moves squeezing block 1101 towards display 4, so that squeezing block 1101 no longer squeezes squeezing plate 1103, so that dust shield 1104 moves upward under the elastic force of support spring 1105, so that filter plate 8 above housing 1 is exposed, so that air inside housing 1 can circulate vertically, and when fan blade 7 rotates to blow air, air can flow from bottom to top. At the same time, dust shield 1104 can prevent dust above from directly settling above filter plate 8. When push rod 1005 slides in the opposite direction to display 4, squeezing block 1101 moves towards display 4, so that squeezing block 1101 stops squeezing plate 1103. The pressure block 1101 presses the pressure plate 1103, causing the pressure plate 1103 to move downward along with the slide rod 1102 and the dust cover 1104. This causes the dust cover 1104 to cover the filter plate 8. At the same time, when the dust cover 1104 covers the filter plate 8 above, the filter plate 8 can prevent dust and large particles from drifting from the side to the top of the filter plate 8. It can also prevent insects from crawling to the top of the filter plate 8 and forming a web, which would block the filter plate 8 and hinder the vertical airflow inside the housing 1, thus affecting the fan's heat dissipation effect. This solves the problem of dust drifting to the top of the filter plate 8 or insects crawling to the top of the filter plate 8 and forming a web, which would block the filter plate 8 and reduce the fan's heat dissipation effect. When the dust cover 1104 moves downward, the dust cover 1104 moves downward along with the hinge rod 1106, causing the slide plates 1107 to slide away from each other. This pushes large dust particles on the top of the housing 1 away from the dust cover 1104 by the slide plates 1107, preventing the dust cover 1104 from being affected by large dust particles when it moves downward. This makes the contact position between the dust cover 1104 and the housing 1 more closely fit. When the dust cover 1104 moves upward, the hinge rod 1106 moves upward, causing the four sets of slide plates 1107 to slide closer to each other. This prevents rainwater from flowing into the inner wall of the housing 1 through the holes of the filter plate 8 at the top of the housing 1 during rainy weather, thus avoiding damage to the internal electronic components.

[0026] In this embodiment, when the two sets of baffles 901 move away from each other, they no longer press against the light shield 1001. Under the elastic force of the limiting spring 906, the light shield 1001 slides out of the slot of the housing 1. When the light shield 1001 slides out of the slot of the housing 1, it no longer presses against the push rod 1005. Under the elastic force of the sliding spring 1006, the push rod 1005 slides towards the display 4. The push rod 1005 slides towards the display 4, which in turn moves the connecting rod 1007 towards the display 4. The connecting rod 1007 slides towards the display 4, which in turn moves the push plate 1008 towards the display 4. Thus, the push plate 1008 contacts and presses against the back of the display 4.

[0027] When push rod 1005 moves towards display 4, push rod 1005 moves squeezing block 1101 towards display 4, so that squeezing block 1101 no longer squeezes squeezing plate 1103, and dust cover 1104 moves upward under the elastic force of support spring 1105, exposing filter plate 8 above housing 1, allowing air to circulate vertically inside housing 1. When push rod 1005 slides in the opposite direction to display 4, squeezing block 1101 squeezes squeezing plate 1103, causing squeezing plate 1103 to move downward with slide rod 1102, and slide rod 1102 moving downward with dust cover 1104, so that... The dust shield 1104 blocks the filter plate 8. When the dust shield 1104 moves downward, it moves downward along with the hinge rod 1106, causing the hinge rod 1106 to press against the slide plate 1107. This causes the four slide plates 1107 to slide away from each other, pushing large dust particles above the housing 1 away from the dust shield 1104. This prevents the dust shield 1104 from being affected by large dust particles when it moves downward. When the dust shield 1104 moves upward, it moves upward along with the hinge rod 1106, causing the four hinge rods 1106 to pull the slide plates 1107, causing the four slide plates 1107 to slide closer to each other.

[0028] 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 computer software demonstration device that is easy to install, comprising a housing (1), characterized in that: The bottom of the housing (1) is fixed with a support leg (2), the housing (1) is fixed with a slide rail (3), the slide rail (3) is placed with a display (4), the inner wall of the housing (1) is fixed with a partition, the partition is fixed with a motor (5), the output end of the motor (5) is fixed with a rotating rod (6), the rotating rod (6) passes through and rotates on the partition, the end of the rotating rod (6) is fixed with a fan blade (7), the top of the housing (1) is fixed with a filter plate (8), the housing (1) is provided with a limiting device (9) to facilitate the installation of the display, the housing (1) is provided with a light shielding device (10) to facilitate people to view the display, and the housing (1) is provided with a dustproof device (11). The limiting device (9) includes a baffle (901), a compression spring (902), a fixing block (903), a slider (904), a limiting block (905), a limiting spring (906), a pull plate (907), and a limiting hole (908). The baffle (901) slides on the housing (1), and a cavity is provided on the housing (1). The compression spring (902) is fixed on the baffle (901), and the end of the compression spring (902) is fixed to the inner wall of the cavity on the housing (1).

2. The computer software demonstration device that is easy to install according to claim 1, characterized in that: The fixing block (903) is fixed to the outer wall of the housing (1), the slider (904) slides on the inner wall of the fixing block (903), the end of the slider (904) is fixed to the limit block (905), the limit block (905) is fixed to the limit spring (906), the end of the limit spring (906) is fixed to the fixing block (903), the pull plate (907) is fixed to the baffle (901), and the pull plate (907) has a limit hole (908).

3. The computer software demonstration device that is easy to install according to claim 1, characterized in that: The light-shielding device (10) includes a light-shielding plate (1001), a limiting rod (1002), a pressure spring (1003), a guide block (1004), a push rod (1005), a sliding spring (1006), a connecting rod (1007), and a push plate (1008). The housing (1) has a slot, and the light-shielding plate (1001) slides on the slot of the housing (1).

4. The computer software demonstration device that is easy to install according to claim 3, characterized in that: The housing (1) has a slot in the groove, a limit rod (1002) is fixed on the light shield (1001), the limit rod (1002) slides in the slot, and a pressure spring (1003) is fixed on the light shield (1001), the end of the pressure spring (1003) is fixed to the inner wall of the groove.

5. The computer software demonstration device that is easy to install according to claim 4, characterized in that: A guide block (1004) is fixed at the bottom of the slot of the housing (1). A slot is provided on the push rod (1005). The guide block (1004) slides in the slot of the push rod (1005). A sliding spring (1006) is fixed on the guide block (1004). The end of the sliding spring (1006) is fixed in the slot on the push rod (1005).

6. The computer software demonstration device that is easy to install according to claim 5, characterized in that: A connecting rod (1007) is fixed on the push rod (1005), the connecting rod (1007) slides on the housing (1), and a push plate (1008) is fixed at the end of the connecting rod (1007).

7. The computer software demonstration device that is easy to install according to claim 1, characterized in that: The dustproof device (11) includes a pressing block (1101), a sliding rod (1102), a pressing plate (1103), a dustproof plate (1104), a support spring (1105), a hinge rod (1106), and a sliding plate (1107). The pressing block (1101) is fixed on the push rod (1005), the sliding rod (1102) slides on the top of the housing (1), the bottom of the sliding rod (1102) is fixed with the pressing plate (1103), and the top of the sliding rod (1102) is fixed with the dustproof plate (1104).

8. The computer software demonstration device that is easy to install according to claim 7, characterized in that: The support spring (1105) is fixed to the bottom of the dust cover (1104), and the end of the support spring (1105) is fixed to the top of the housing (1). The bottom of the dust cover (1104) is hinged to a hinge rod (1106), and the end of the hinge rod (1106) is hinged to a slide plate (1107). The slide plate (1107) slides above the housing (1).

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