A board pressing device for a computer chassis

Abstract

The present invention discloses a board pressing device for a computer chassis, comprising: a chassis and a board. One end inside the chassis is provided with a telescopic block mechanism for adjusting according to the height of the board. In the present invention, through the telescopic block mechanism, the pressing block mechanism, the connecting block, etc., the board can be automatically locked after being pressed, ensuring stable connection between the board and the circuit board, and preventing the system from being unstable due to unstable connection of the board. Through the pressing block mechanism and the inflation mechanism, the inflation strip can be automatically inflated, and after it expands, it fits with the board, avoiding dust from falling into the inside through the connection between the board and the slot, affecting the normal operation of the board and the circuit board. Also, when the board needs to be pulled out, the inflation strip can be automatically deflated to restore its original state, facilitating the pulling out of the board, making it more convenient to use and ensuring more stable use of the board.

Description

Technical Field

[0001] The present invention relates to the technical field of computer chassis devices, and specifically to a board pressing device for a computer chassis. Background Art

[0002] A computer chassis is an important component for carrying and protecting computer hardware. Inside it, there are structures and brackets designed to install and fix hardware devices such as motherboards, power supplies, hard drives, optical drives, and graphics cards, providing a stable working environment for these devices. The internal design of the chassis enables various hardware components to be installed and fixed orderly, allowing them to be placed and connected in an organized manner. A computer chassis is an indispensable part of a computer system and plays an important role in protecting hardware, providing installation space, heat dissipation and cooling, providing interfaces and expansion slots, and enhancing aesthetics.

[0003] However, when a board is inserted into the slot of the main circuit board of a computer, since the connection between the board and the main circuit board of the computer is a plug-in connection, it is easy for the board to become loose during the transportation of the chassis or when shaken manually. However, when the existing pressing devices press the board, it is not convenient to lock it, and the operation of tightening with screws is usually inconvenient. The loosening of the board will directly affect the data transmission and power supply between it and the motherboard, resulting in unstable situations in the system, such as frequent crashes, restarts, blue screens, etc. This not only affects the user experience but also may cause data loss or damage. When the board is inserted into the slot, dust may fall into the slot. The accumulated dust in the slot not only affects the insertion and fixation of the board but also increases the difficulty of cleaning and maintenance. Dust is the enemy of electronic devices and may cause problems such as poor heat dissipation and short circuits, so further improvement is needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a board pressing device for a computer chassis to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A board pressing device for a computer chassis, comprising: a chassis and a board. One end inside the chassis is provided with a telescopic block mechanism for adjusting according to the height of the board. One end of the side of the telescopic block mechanism is provided with a pressing block mechanism for pressing the board. One end inside the chassis is provided with a connection block for limiting the pressing block mechanism. One end of the side of the connection block is provided with an inflation mechanism for blocking dust at the connection of the board.

[0006] As a further solution of the present invention: The pressing block mechanism includes a rotating block mechanism arranged at one end of the side of the telescopic block mechanism. A gear is rotatably connected to one end inside the rotating block mechanism. A first limiting component is arranged at one end of the side of the rotating block mechanism. A second limiting component is arranged at one end inside the rotating block mechanism. When the pressing block mechanism rotates to be perpendicular to the telescopic block mechanism, the gear meshes with the rack. A through hole for the connecting rod to pass through is formed in the middle of the gear.

[0007] As a further solution of the present invention: The rotating block mechanism includes a rotating block main body arranged at one end of the side of the telescopic block mechanism. A connection hole adapted to the first limiting component is formed at one end of the side of the rotating block main body. A first rotating groove adapted to the first limiting component is formed at one end of the side of the rotating block main body. A second rotating groove adapted to the second limiting component is formed at one end of the side of the rotating block main body. A pressing block is fixedly connected to one end below the rotating block main body. A rotating shaft is arranged at one end of the side of the rotating block main body.

[0008] As a further solution of the present invention: The first limiting component includes a connecting rod rotatably connected to one end of the side of the rotating block mechanism. A limiting ring is fixedly connected to one end of the side of the connecting rod. A first rotating disk is fixedly connected to one end of the side of the connecting rod. A first sliding rod is fixedly connected to one end of the side of the first rotating disk. A first limiting block is fixedly connected to one end of the side of the connecting rod. A first knob is fixedly connected to one end of the side of the first limiting block. A second limiting block is fixedly connected to one end of the side of the connecting rod. A second knob is fixedly connected to one end of the side of the second limiting block.

[0009] As a further solution of the present invention: The second limiting component includes a rotating rod rotatably connected to one end of the side of the rotating block mechanism. A pawl is fixedly connected to one end of the side of the rotating rod. A second rotating disk is fixedly connected to one end of the side of the rotating rod. A second sliding rod is fixedly connected to one end of the side of the second rotating disk. A rotating piece is fixedly connected to one end of the side of the second rotating disk.

[0010] As a further solution of the present invention: The inflation mechanism includes a piston assembly arranged at one end of the side of the connecting block. An inflation cylinder mechanism is arranged at one end below the piston assembly. A dust blocking mechanism is arranged at one end of the side of the inflation cylinder mechanism.

[0011] As a further aspect of the present invention: The piston assembly includes a piston body disposed at one end inside the air pump mechanism. One end above the piston body is fixedly connected with a fixed rod, and one end above the fixed rod is fixedly connected with a fixed frame. One end of the side surface of the fixed frame is slidably connected with a limiting rod. One end of the side surface of the limiting rod is fixedly connected with a limiting disc. A spring is sleeved on one end of the side surface of the limiting rod. One end of the side surface of the limiting rod is fixedly connected with an inclined block. Both the upper and lower surfaces of the inclined block are inclined surfaces, and the angle of the lower inclined surface is smaller. When the first limiting block and the second limiting block are pressed, the limiting rod can be driven to slide on the side surface of the fixed frame.

[0012] As a further aspect of the present invention: The air pump mechanism includes an air pump main body disposed at one end below the piston assembly. An air inflation cavity adapted to the piston assembly is formed inside the air pump main body. One end of the side surface of the air pump main body is fixedly connected with a fixed seat, and one end of the side surface of the air pump main body is fixedly connected with a connecting pipe.

[0013] As a further aspect of the present invention: The dust-proof mechanism includes a hollow block disposed at one end of the side surface of the air pump mechanism. One end of the side surface of the hollow block is fixedly connected with a baffle plate. An air inflation strip is disposed at one end of the side surface of the hollow block. One end of the side surface of the baffle plate is fixedly connected with a connecting strip. The air inflation strip is made of rubber material and is hollow in the middle. It can expand after inflation and return to its original state after deflation.

[0014] As a further aspect of the present invention: The telescopic block mechanism includes a telescopic outer block disposed at one end inside the chassis. A telescopic inner block is slidably connected to one end above the telescopic outer block. One end of the side surface of the telescopic inner block is fixedly connected with a blocking block for limiting the rotation of the pressing block mechanism. The blocking block can block the pressing block mechanism so that it can rotate at most ninety degrees. A rotation hole adapted to the pressing block mechanism is formed at one end of the side surface of the telescopic inner block.

[0015] As a further aspect of the present invention: The connecting block includes a connecting block main body disposed inside the chassis. One end of the side surface of the connecting block main body is fixedly connected with a rack. A first moving groove adapted to the pressing block mechanism is formed at one end of the side surface of the connecting block main body, and a second moving groove adapted to the pressing block mechanism is formed at one end of the side surface of the connecting block main body.

[0016] As a further aspect of the present invention: The chassis includes a chassis main body disposed at one end of the side surface of the circuit board. A circuit board is disposed at one end inside the chassis main body, and a slot is disposed at one end of the side surface of the circuit board.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In the present invention, through the telescopic block mechanism, the pressing block mechanism, the connecting block, etc., the board can be automatically locked after being pressed, ensuring a stable connection between the board and the circuit board, and preventing the system from becoming unstable due to an unstable connection of the board. Through the pressing block mechanism and the inflation mechanism, the inflation strip can be automatically inflated, and after it expands, it fits with the board, avoiding dust from falling into the interior through the connection between the board and the slot, which may affect the normal operation of the board and the circuit board. When the board needs to be removed, the inflation strip can be automatically deflated to restore its original state, facilitating the removal of the board, making it more convenient to use and ensuring more stable use of the board. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 is a schematic diagram of the overall structure of the present invention from a second perspective;

[0021] Figure 3 is a schematic diagram of the structure of the pressing device in the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the telescopic block mechanism in the present invention;

[0023] Figure 5 is a schematic diagram of the structure of the pressing block mechanism in the present invention;

[0024] Figure 6 is a schematic diagram of the structure of the rotating block mechanism in the present invention;

[0025] Figure 7 is a partial schematic diagram of the structure of the pressing block mechanism in the present invention;

[0026] Figure 8 is a schematic diagram of the structure of the first limiting component in the present invention;

[0027] Figure 9 is a schematic diagram of the structure of the second limiting component in the present invention;

[0028] Figure 10 is a schematic diagram of the structure of the piston component in the present invention;

[0029] Figure 11 is a schematic diagram of the structure of the chassis in the present invention;

[0030] Figure 12 is a cross-sectional view of the inflation mechanism in the present invention;

[0031] Figure 13 is a partial schematic diagram of the structure of the inflation mechanism in the present invention;

[0032] Figure 14It is a schematic structural diagram of the connecting block mechanism in the present invention.

[0033] In the figure: 1, chassis; 11, chassis main body; 12, circuit board; 13, slot; 2, board card; 3, telescopic block mechanism; 31, telescopic outer block; 32, telescopic inner block; 33, stop block; 34, rotation hole; 4, pressing block mechanism; 41, rotating block mechanism; 411, rotating block main body; 412, connecting hole; 413, first rotation groove; 414, second rotation groove; 415, pressing block; 416, rotating shaft; 42, gear; 43, first limit component; 431, connecting rod; 432, limit ring; 433, first rotating disk; 434, first sliding rod; 435, first limit block; 436, first knob; 437, second limit block; 438, second knob; 44, second limit component; 441, rotating rod; 442, pawl; 443, second rotating disk; 444, second sliding rod; 445, rotating piece; 5, connecting block; 51, connecting block main body; 52, first moving groove; 53, second moving groove; 54, rack; 6, inflation mechanism; 61, piston assembly; 611, piston body; 612, fixed rod; 613, fixed frame; 614, limit rod; 615, limit disk; 616, spring; 617, inclined block; 62, air inflation cylinder mechanism; 621, air inflation cylinder main body; 622, inflation cavity; 623, fixed seat; 624, connecting pipe; 63, dust blocking mechanism; 631, hollow block; 632, baffle; 633, inflation strip; 634, connecting strip. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to its overall structure.

[0036] Referring to Figures 1 to 14 , in an embodiment of the present invention, a board pressing device for a computer chassis includes: a chassis 1 and a board 2. One end inside the chassis 1 is provided with a telescopic block mechanism 3 for adjusting according to the height of the board 2. One end of the side of the telescopic block mechanism 3 is provided with a pressing block mechanism 4 for pressing the board 2. One end inside the chassis 1 is provided with a connecting block 5 for limiting the pressing block mechanism 4. One end of the side of the connecting block 5 is provided with an inflation mechanism 6 for blocking dust at the connection of the board 2.

[0037] The pressing block mechanism 4 includes a rotating block mechanism 41 provided at one end of the side of the telescopic block mechanism 3. One end inside the rotating block mechanism 41 is rotatably connected to a gear 42. One end of the side of the rotating block mechanism 41 is provided with a first limiting component 43. One end inside the rotating block mechanism 41 is provided with a second limiting component 44.

[0038] Adopting the above solution: The first limiting component 43 can limit the gear 42 so that it can only rotate in one direction. After the pressing block mechanism 4 rotates to be perpendicular to the telescopic block mechanism 3 and moves downward to press the board 2, it will automatically limit the gear 42 to prevent the position of the pressing block mechanism 4 from shifting.

[0039] The rotating block mechanism 41 includes a rotating block body 411 arranged at one end of the side of the telescopic block mechanism 3, a connecting hole 412 adapted to the first limiting component 43 is opened at one end of the side of the rotating block body 411, a first rotating groove 413 adapted to the first limiting component 43 is opened at one end of the side of the rotating block body 411, a second rotating groove 414 adapted to the second limiting component 44 is opened at one end of the side of the rotating block body 411, a pressing block 415 is fixedly connected to one end below the rotating block body 411, and a rotating shaft 416 is arranged at one end of the side of the rotating block body 411.

[0040] The first limiting assembly 43 includes a connecting rod 431 rotatably connected to one end of the side of the rotating block mechanism 41, one end of the side of the connecting rod 431 is fixedly connected to a limiting ring 432, one end of the side of the connecting rod 431 is fixedly connected to a first rotating disk 433, one end of the side of the first rotating disk 433 is fixedly connected to a first sliding rod 434, one end of the side of the connecting rod 431 is fixedly connected to a first limiting block 435, one end of the side of the first limiting block 435 is fixedly connected to a first knob 436, one end of the side of the connecting rod 431 is fixedly connected to a second limiting block 437, and one end of the side of the second limiting block 437 is fixedly connected to a second knob 438.

[0041] The second limiting assembly 44 includes a rotating rod 441 rotatably connected to one end of the side of the rotating block mechanism 41, a pawl 442 is fixedly connected to one end of the side of the rotating rod 441, a second rotating disk 443 is fixedly connected to one end of the side of the rotating rod 441, a second sliding rod 444 is fixedly connected to one end of the side of the second rotating disk 443, and a rotating piece 445 is fixedly connected to one end of the side of the second rotating disk 443.

[0042] The inflation mechanism 6 includes a piston assembly 61 arranged at one end of the side of the connecting block 5, an inflation cylinder mechanism 62 is arranged at one end below the piston assembly 61, and an ash blocking mechanism 63 is arranged at one end of the side of the inflation cylinder mechanism 62.

[0043] The piston assembly 61 includes a piston body 611 arranged at one end inside the inflation cylinder mechanism 62, a fixing rod 612 is fixedly connected to the upper end of the piston body 611, a fixing frame 613 is fixedly connected to the upper end of the fixing rod 612, a side end of the fixing frame 613 is slidably connected to a limiting rod 614, a side end of the limiting rod 614 is fixedly connected to a limiting disk 615, a side end of the limiting rod 614 is sleeved with a spring 616, and a side end of the limiting rod 614 is fixedly connected to an inclined block 617.

[0044] By adopting the above scheme, the spring 616 can reset the inclined block 617 that moves after being squeezed, and a small gap is left between the two groups of inclined blocks 617. The rotated first limit block 435 and the second limit block 437 can be inserted into the gap first and then the two groups of inclined blocks 617 are spread apart.

[0045] The air pump mechanism 62 includes an air pump main body 621 provided at one end below the piston assembly 61. An air inflation chamber 622 adapted to the piston assembly 61 is provided inside the air pump main body 621. A fixed seat 623 is fixedly connected to one end of the side surface of the air pump main body 621, and a connecting pipe 624 is fixedly connected to one end of the side surface of the air pump main body 621.

[0046] The dust blocking mechanism 63 includes a hollow block 631 provided at one end of the side surface of the air pump mechanism 62. A baffle 632 is fixedly connected to one end of the side surface of the hollow block 631. An air inflation strip 633 is provided at one end of the side surface of the hollow block 631. A connecting strip 634 is fixedly connected to one end of the side surface of the baffle 632.

[0047] Adopting the above solution: The baffle 632 can block the outward expansion of the air inflation strip 633 after inflation, avoiding the situation that the air inflation strip 633 cannot fit with the connection part of the board card 2 after expansion, and ensuring the stable dust blocking effect of the air inflation strip 633.

[0048] The telescopic block mechanism 3 includes a telescopic outer block 31 provided at one end inside the chassis 1. A telescopic inner block 32 is slidably connected to one end above the telescopic outer block 31. A stop block 33 for limiting the rotation of the pressing block mechanism 4 is fixedly connected to one end of the side surface of the telescopic inner block 32. A rotation hole 34 adapted to the pressing block mechanism 4 is provided at one end of the side surface of the telescopic inner block 32.

[0049] The connecting block 5 includes a connecting block main body 51 provided inside the chassis 1. A rack 54 is fixedly connected to one end of the side surface of the connecting block main body 51. A first moving groove 52 adapted to the pressing block mechanism 4 is provided at one end of the side surface of the connecting block main body 51. A second moving groove 53 adapted to the pressing block mechanism 4 is provided at one end of the side surface of the connecting block main body 51.

[0050] The chassis 1 includes a chassis main body 11 provided at one end of the side surface of the board card 2. A circuit board 12 is provided at one end inside the chassis main body 11. A slot 13 is provided at one end of the side surface of the circuit board 12.

[0051] The working principle of the present invention is as follows: First, rotate the pressing block mechanism 4 to be perpendicular to the telescopic block mechanism 3, and then press the pressing block mechanism 4 downward in the vertical direction. The gear 42 moves downward accordingly, and thus rotates under the action of the rack 54. Since the pawl 442 is on the side of the gear 42, the gear 42 can only rotate in one direction. When the pressing block mechanism 4 is pressed downward, the first limiting block 435 and the second limiting block 437 will squeeze the inclined block 617 to make it slide outward, so that the first limiting block 435 and the second limiting block 437 fall into the fixed frame 613 to press down the piston assembly 61, so that the piston body 611 moves downward in the air cylinder main body 621, squeezing the internal air to be output to the hollow block 631 through the connecting pipe 624, and finally entering the inside of the inflatable strip 633, causing it to expand toward the interface of the board card 2 to shield the interface between the board card 2 and the slot 13, thus achieving the effect of dust prevention. When the pressing block mechanism 4 is pressed down above the board card 2 and pressed tightly, it is limited by the pawl 442 to prevent the situation that it can be easily pulled out after being fixed, so that the board card 2 can be continuously in a pressed state and be more stable. When it needs to be pulled out, rotate the rotating piece 445 so that the second sliding rod 444 slides in the second rotating groove 414, so that the second limiting component 44 rotates by ninety degrees, so that the pawl 442 disengages from the gear 42. At this time, the pressing block mechanism 4 can be pulled out upward. When pulling out upward, the first limiting block 435 and the second limiting block 437 will push the piston assembly 61 upward to realize automatic air extraction, so that the inflatable strip 633 after air extraction returns to its original state, facilitating the pulling out of the board card 2. When the pressing block mechanism 4 is pulled up to the uppermost position, rotate the first knob 436 or the second knob 438 and rotate it by ninety degrees. The first sliding rod 434 will slide in the first rotating groove 413 to limit it so that it can only rotate by ninety degrees. When the rotated first limiting block 435 and second limiting block 437 move upward, they will push open two groups of inclined blocks 617 to disengage from the limit of the piston assembly 61. At this time, the board card 2 can be taken out.

[0052] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A board pressing device for a computer chassis, comprising: A chassis (1) and a board (2), characterized in that a telescopic block mechanism (3) for adjusting according to the height of the board (2) is provided at one end inside the chassis (1), a pressing block mechanism (4) for pressing the board (2) is provided at one end on the side of the telescopic block mechanism (3), a connecting block (5) for limiting the position of the pressing block mechanism (4) is provided at one end inside the chassis (1), and an inflation mechanism (6) for blocking dust at the connection of the board (2) is provided at one end on the side of the connecting block (5); The inflation mechanism (6) comprises a piston assembly (61) arranged at one end of a side surface of the connection block (5); an inflation cylinder mechanism (62) is arranged at one end below the piston assembly (61); and an ash blocking mechanism (63) is arranged at one end of a side surface of the inflation cylinder mechanism (62); The piston assembly (61) comprises a piston body (611) arranged at one end inside the inflation cylinder mechanism (62); a fixing rod (612) is fixedly connected to the upper end of the piston body (611); a fixing frame (613) is fixedly connected to the upper end of the fixing rod (612); a side end of the fixing frame (613) is slidably connected to a limiting rod (614); a side end of the limiting rod (614) is fixedly connected to a limiting plate (615); a side end of the limiting rod (614) is sleeved with a spring (616); and a side end of the limiting rod (614) is fixedly connected to an inclined block (617).

2. A card pressing device for a computer chassis according to claim 1, characterized in that: The pressing block mechanism (4) comprises a rotating block mechanism (41) arranged at one end of a side surface of the telescopic block mechanism (3); one end of the rotating block mechanism (41) is rotatably connected to a gear (42); one end of the side surface of the rotating block mechanism (41) is provided with a first limiting assembly (43); and one end of the inside of the rotating block mechanism (41) is provided with a second limiting assembly (44).

3. A card pressing device for a computer chassis according to claim 2, characterized in that: The rotating block mechanism (41) comprises a rotating block body (411) arranged at one end of a side surface of the telescopic block mechanism (3); a connecting hole (412) adapted to the first limiting assembly (43) is provided at one end of the side surface of the rotating block body (411); a first rotating groove (413) adapted to the first limiting assembly (43) is provided at one end of the side surface of the rotating block body (411); a second rotating groove (414) adapted to the second limiting assembly (44) is provided at one end of the side surface of the rotating block body (411); a pressing block (415) is fixedly connected to one end of the lower side of the rotating block body (411); and a rotating shaft (416) is provided at one end of the side surface of the rotating block body (411).

4. A board pressing device for a computer chassis according to claim 2, characterized in that: The first limiting assembly (43) comprises a connecting rod (431) rotatably connected to one end of a side surface of the rotating block mechanism (41); one end of the side surface of the connecting rod (431) is fixedly connected to a limiting ring (432); one end of the side surface of the connecting rod (431) is fixedly connected to a first rotating disk (433); one end of the side surface of the first rotating disk (433) is fixedly connected to a first sliding rod (434); one end of the side surface of the connecting rod (431) is fixedly connected to a first limiting block (435); one end of the side surface of the first limiting block (435) is fixedly connected to a first knob (436); one end of the side surface of the connecting rod (431) is fixedly connected to a second limiting block (437); and one end of the side surface of the second limiting block (437) is fixedly connected to a second knob (438).

5. A board pressing device for a computer chassis according to claim 2, characterized in that: The second limiting assembly (44) comprises a rotating rod (441) rotatably connected to one end of a side surface of the rotating block mechanism (41); a pawl (442) is fixedly connected to one end of the side surface of the rotating rod (441); a second rotating disk (443) is fixedly connected to one end of the side surface of the rotating rod (441); a second sliding rod (444) is fixedly connected to one end of the side surface of the second rotating disk (443); and a rotating sheet (445) is fixedly connected to one end of the side surface of the second rotating disk (443).

6. A card pressing device for a computer chassis according to claim 1, characterized in that: The inflator mechanism (62) comprises an inflator body (621) arranged at one end below the piston assembly (61); an inflator chamber (622) adapted to the piston assembly (61) is provided inside the inflator body (621); a fixing seat (623) is fixedly connected to one end of the side surface of the inflator body (621); and a connecting pipe (624) is fixedly connected to one end of the side surface of the inflator body (621).

7. A board pressing device for a computer chassis according to claim 1, characterized in that: The dust blocking mechanism (63) comprises a hollow block (631) arranged at one end of a side surface of the inflation cylinder mechanism (62); a baffle plate (632) is fixedly connected to one end of the side surface of the hollow block (631); an inflation strip (633) is arranged at one end of the side surface of the hollow block (631); and a connecting strip (634) is fixedly connected to one end of the side surface of the baffle plate (632).

8. The board pressing device of a computer chassis according to claim 1, characterized in that: The telescopic block mechanism (3) comprises a telescopic outer block (31) arranged at one end inside the chassis (1); a telescopic inner block (32) is slidably connected to an upper end of the telescopic outer block (31); a stopper (33) for limiting the rotation of the pressing block mechanism (4) is fixedly connected to one end of a side surface of the telescopic inner block (32); and a rotation hole (34) adapted to the pressing block mechanism (4) is provided at one end of a side surface of the telescopic inner block (32).

9. A board pressing device for a computer chassis according to claim 1, characterized in that: The connecting block (5) comprises a connecting block body (51) arranged inside the chassis (1), a rack (54) being fixedly connected to one end of a side surface of the connecting block body (51), a first movable groove (52) adapted to the clamping block mechanism (4) being provided at one end of a side surface of the connecting block body (51), and a second movable groove (53) adapted to the clamping block mechanism (4) being provided at one end of a side surface of the connecting block body (51).

10. The board pressing device of a computer chassis according to claim 1, characterized in that: The chassis (1) comprises a chassis body (11) arranged at one end of a side surface of a board (2), a circuit board (12) is arranged at one end inside the chassis body (11), and a slot (13) is arranged at one end of a side surface of the circuit board (12).

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