Desktop computer case with cleaning function

Abstract

The present invention discloses a desktop computer case with a cleaning function, comprising a case shell, exhaust pipes connected to the case shell are symmetrically provided on both sides of the case shell, a rotating cylinder is rotatably installed at the internal axis of each exhaust pipe, a fan is pre-buried inside the rotating cylinder, an output end of the fan is connected with an air outlet plate along an axial direction perpendicular to the rotating cylinder, and ventilation holes are evenly distributed on the outer wall of the air outlet plate along its length direction, two groups of fans work alternately to blow air into the inside of the case shell, and the rotating cylinder is in a rotating state when each fan is working. The present invention uses two groups of fans to alternately remove dust from the inside of the case shell, and the air outlet plate at the air outlet end of the fan performs a circular rotation motion, which can maximize the sweeping area and ensure the dust cleaning effect, and the two blocking members can cooperate with the fan to complete the dust cleaning, and after the dust cleaning is completed, the exhaust pipe is blocked to prevent external dust from entering the case.

Description

Technical Field

[0001] The invention relates to the field of computer cases, in particular to a desktop computer case with a cleaning function. Background Art

[0002] The role of the computer case in the computer is to fix various computer accessories and to support and protect them. The computer generates heat during operation. In order to quickly dissipate the heat generated by the various accessories on the motherboard, heat dissipation holes are usually opened on the computer case. Although the heat dissipation holes can dissipate the heat inside the computer, dust from the outside can also enter the computer case through the heat dissipation holes. After dust adheres to the motherboard for a long time and forms a collection, it may cause the motherboard to malfunction or even cause the computer to fail to start. Therefore, the computer needs to be dusted regularly.

[0003] In the prior art, when performing dust removal operations on computers, a fan is usually installed inside the computer case, and the wind flow generated by the fan is used to blow the accessories inside the case to achieve dust removal. However, since the fan is fixed inside the case, the area of ​​the main board inside the case and the various accessories on the main board is limited, and the wind flow formed by the fan cannot thoroughly blow the main board and various accessories. Therefore, although the computer case in this field can achieve self-cleaning, its cleaning effect is general and needs further improvement. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a desktop computer case with a cleaning function.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a desktop computer case with a cleaning function, comprising a case shell, exhaust tubes connected to the case shell are symmetrically opened on both sides of the case shell, a rotating cylinder is rotatably installed at the internal axis of each exhaust tube, a fan is pre-buried inside the rotating cylinder, an output end of the fan is connected to an air outlet plate along an axial direction perpendicular to the rotating cylinder, ventilation holes are evenly distributed on the outer wall of the air outlet plate along its length direction, two groups of fans work alternately to blow air into the case shell, and the rotating cylinder is in a rotating state when each fan is working.

[0006] Preferably, a rotating ring is concentrically arranged on the outer side of the rotating cylinder, the rotating ring and the rotating cylinder are connected by a plurality of connecting rods, meshing teeth are annularly distributed on the outer circumference of the rotating ring, and a gear meshing with the meshing teeth is rotatably installed on the top of the exhaust cylinder;

[0007] A rotating wheel is rotatably installed at the position corresponding to each gear inside the chassis shell, and the rotating wheel is coaxially arranged and fixedly connected to the corresponding gear. A motor is fixed to the top of the inner side of the chassis shell, and the motor shaft of the motor is arranged in the vertical direction. The bottom of the motor is fixedly sleeved with a worm wheel, and a worm is coaxially arranged between the two rotating wheels. The middle part of the worm is meshed with the worm wheel, and the worm is suspended in the chassis shell through hanging plates distributed on both sides. The two ends of the worm along the axial direction extend to contact the corresponding rotating wheels, and the first ratchet and the second ratchet are fixedly sleeved respectively. The two rotating wheels are respectively hinged with a first ratchet and a second ratchet, wherein the first ratchet is unidirectionally meshed with the first ratchet, and the second ratchet is unidirectionally meshed with the second ratchet.

[0008] Preferably, a fixing frame is fixed to the outside of each exhaust tube, and the fixing frame includes a fixing tube concentrically arranged with the exhaust tube and L-shaped rods evenly distributed along the radial direction. The end of each L-shaped rod is detachably connected to the outer wall of the exhaust tube. The diameters of the rotating tube and the fixed tube are consistent, and the two are coaxially arranged and detachably connected.

[0009] Preferably, a sealing piece is slidably installed inside each exhaust tube. The sealing piece is a circular plate that matches the inner diameter of the exhaust tube, and a through hole that matches the outer diameter of the fixed tube or the rotating tube is opened at the center of the circular plate. The circular plate is slidably sleeved on the fixed tube or the rotating tube, and a paddle piece is also integrally formed on the circular plate, and the paddle piece is coaxially arranged with the corresponding gear. When one of the fans is working, the sealing piece corresponding to the air outlet end of the fan moves inside the exhaust tube to form a gap between the sealing piece and the exhaust tube for airflow to be discharged.

[0010] Preferably, the two hanging plates are rotatably installed with the first sprocket on one side facing each other, and the second sprocket is fixedly sleeved on the circumferential surface of the worm respectively, and a chain is sleeved between the first sprocket and the second sprocket, and a threaded rod is fixedly connected to the center of the first sprocket in the horizontal direction, and a sliding plate is provided between the threaded rod and the worm, the upper end of the sliding plate is threadedly connected to the threaded rod, and the lower end is slidably sleeved on the worm, a spring is connected between the middle part of the sliding plate and the corresponding hanging plate, and a push rod is installed on the sliding guide at the internal axis of both ends of the worm, one end of the push rod is magnetically connected to the lower end of the corresponding sliding plate, and the other end passes through the rotating wheel and the gear in sequence and is connected to the corresponding toggle plate.

[0011] Preferably, the ends of the two threaded rods facing each other are connected to the limit plate, and no threads are provided at both ends of each threaded rod for the sliding piece to slide. In the initial state, the two sliding pieces are located on the side close to the limit plate, and in this state, the spring is in a stretched state. When the sliding piece slides toward the corresponding hanging plate to the end of the threaded rod, the corresponding blocking piece forms a gap with the exhaust duct, and the spring is in a compressed state.

[0012] The threaded rod close to the first ratchet is a forward thread, and the threaded rod close to the second ratchet is a reverse thread.

[0013] Preferably, the side of the circular plate facing the inside of the chassis shell is conical.

[0014] Preferably, the blocking member is a round box-shaped sponge containing box, and the side of the sponge containing box facing the inside of the chassis shell is open and filled with sponge.

[0015] Compared with the prior art, the present invention provides a desktop computer case with a cleaning function, which has the following beneficial effects:

[0016] (1) The present invention symmetrically distributes exhaust ducts on both sides of the chassis shell. A fan is pre-buried in the rotating cylinder inside the exhaust duct. The output end of the fan is connected to an air outlet plate along an axial direction perpendicular to the rotating cylinder, and ventilation holes are evenly distributed on the outer wall of the air outlet plate along its length direction. The wind generated by the fan passes through the ventilation holes on the outer wall of the air outlet plate and is discharged to the inside of the chassis shell. When the motor drives the worm to rotate clockwise, the rotating cylinder on the left side of the chassis shell can rotate, while the rotating cylinder on the right side of the chassis shell remains stationary. At this time, the fan inside the left rotating cylinder is started, and the wind generated by the fan is sprayed into the inside of the chassis shell. When the motor drives the worm to rotate in the opposite direction, the rotating cylinder on the right side of the chassis shell rotates, and the rotating cylinder on the left side remains fixed. The fan inside the right rotating cylinder works to spray the wind into the chassis shell. Such a cycle can relatively thoroughly clean the dust attached to the mainboard inside the chassis shell.

[0017] (2) In addition, when the motor drives the worm to rotate, it drives the second sprocket to rotate, and the second sprocket drives the first sprocket to rotate through the chain. The synchronous rotation of the threaded rod and the first sprocket will drive the sliding plate to slide relative to the worm. Since the lower end of the sliding plate is magnetically connected to the top rod, when the sliding plate slides relative to the worm, it will drive the top rod to move synchronously with it, prompting the top rod to act on the paddle plate, so that the blocking piece moves toward the outside of the exhaust pipe, and finally a gap is formed. The airflow containing dust flows out from the gap between the blocking piece and the exhaust pipe. During the process of the motor driving the worm to rotate alternately in forward and reverse directions, the two blocking pieces are also alternately in an open and closed state, cooperating with the fan to guide the airflow to the outside of the chassis shell. When it is not needed or the cleaning work is completed, the two blocking pieces can be closed again to block the exhaust pipe to prevent external dust from entering the chassis shell.

[0018] A sealing piece is provided inside each exhaust duct. The sealing piece is a round box-shaped sponge box. The side of the sponge box facing the inside of the chassis is open for filling with sponge. When the airflow generated by the fan blows towards the wet sponge, the dust mixed in the airflow is adhered to the sponge. After the dust comes into contact with the wet sponge, it can "lock" the dust more quickly and effectively, preventing the dust inside the chassis from being directly sprayed to the outside, causing indoor dust pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of the entire computer case in the embodiment;

[0021] Figure 2 It is a schematic diagram of the installation of the fixed cylinder and the rotating cylinder on the chassis shell in the embodiment;

[0022] Figure 3 for Figure 2 A schematic diagram from another angle;

[0023] Figure 4 It is a schematic diagram of the connection between the rotating cylinder and the rotating ring in the embodiment;

[0024] Figure 5 This is a schematic diagram of the structure of the blocking member in the embodiment;

[0025] Figure 6 A schematic diagram of various structures inside the chassis shell in the embodiment, which only includes the top part of the chassis shell;

[0026] Figure 7 A schematic diagram of the three-dimensional distribution of various structures inside the chassis shell in the embodiment, wherein the top portion of the chassis shell is not included in the figure;

[0027] Figure 8 A schematic diagram of the connection between the first ratchet wheel and the rotating wheel connected to the end of the worm in the embodiment;

[0028] Fig. 9 Schematic diagram of the connection between the top rod and the sliding plate and the toggle plate when the worm is cut in the embodiment;

[0029] Fig.10 Schematic diagram of the connection between the second ratchet wheel and the rotating wheel connected to the end of the worm in the embodiment.

[0030] In the figure: 1. chassis shell; 2. exhaust tube; 3. fixing frame; 4. rotating tube; 5. air outlet plate; 6. connecting rod; 7. rotating ring; 8. gear; 9. sponge container; 10. through hole; 11. sponge; 12. toggle plate; 13. motor; 14. hanging plate; 15. worm; 16. worm wheel; 17. rotating wheel; 18. first ratchet; 19. first ratchet; 20. sliding plate; 21. threaded rod; 22. first sprocket; 23. second sprocket; 24. spring; 25. push rod; 26. second ratchet; 27. second ratchet. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the 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. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0032] like Figure 1-10 As shown, the present embodiment proposes a desktop computer case with a cleaning function, including exhaust tubes 2 integrally formed and arranged on both sides of a case shell 1, the two exhaust tubes 2 are both connected to the inside of the case shell 1, a fixing frame 3 is fixed to the outside of each exhaust tube 2, the fixing frame 3 includes a fixing tube concentrically arranged with the exhaust tube 2 and L-shaped rods evenly distributed along the radial direction, the end of each L-shaped rod is detachably connected to the outer wall of the exhaust tube 2, and a rotating tube 4 is rotatably installed on the side of the fixing tube facing the inside of the case shell 1, a fan is pre-buried in the rotating tube 4, the output end of the fan is connected to an air outlet plate 5 along an axial direction perpendicular to the rotating tube 4, and the outer wall of the air outlet plate 5 is evenly distributed along its length direction. The exhaust tube 2 is provided with ventilation holes, and the wind generated by the fan is discharged to the inside of the chassis shell 1 through the ventilation holes on the outer wall of the air outlet plate 5. A rotating ring 7 is concentrically arranged on the outer side of the rotating cylinder 4. The rotating ring 7 and the rotating cylinder 4 are connected by several connecting rods 6. The outer circumferential surface of the rotating ring 7 is annularly distributed with meshing teeth. The top of the exhaust tube 2 is rotatably installed with a gear 8 meshing with the meshing teeth. The gear 8 is driven to rotate, thereby driving the rotating ring 7 and the rotating cylinder 4 to rotate synchronously, and the fan inside the rotating cylinder 4 rotates synchronously therewith, so that the wind generated by the air outlet plate 5 is in contact with the mainboard inside the chassis shell 1 over a large area, thereby cleaning the dust attached to the mainboard.

[0033] The purpose of setting two groups of fans in the present invention is to be able to perform two-way air blowing and dust removal on the mainboard. Because multiple chipsets are inserted on the mainboard, when one of the fans is working, the side of the chip facing away from the fan outlet cannot be blown away, and the dust attached to this part of the area cannot be carried away by the wind. Therefore, in order to thoroughly clean the chipset and other components on the mainboard, two groups of fans set toward each other are used to operate alternately. Specifically, a rotating wheel 17 is rotatably installed at the position corresponding to each gear 8 inside the chassis shell 1. The rotating wheel 17 is coaxially arranged and fixedly connected to the corresponding gear 8. A motor 13 is fixed to the top of the inner side of the chassis shell 1. The motor shaft of the motor 13 is arranged in the vertical direction, and a worm wheel 16 is fixedly sleeved at its bottom. A worm 15 is coaxially arranged between the two rotating wheels 17. The middle part of the worm 15 is meshed with the worm wheel 16. The entire worm 15 is suspended in the chassis shell 1 through hanging plates 14 distributed on both sides. Of course, the two hanging plates 14 are rotatably connected to the worm 15. The worm 15 extends from both ends along the axial direction to contact with the corresponding rotating wheel 17, and a first ratchet 18 and a second ratchet 26 are fixedly sleeved thereon respectively. The two rotating wheels 17 are respectively hinged with a first ratchet 19 and a second ratchet 27, wherein the first ratchet 19 and the The first ratchet 18 is in one-way meshing cooperation, while the second ratchet 26 is in one-way meshing cooperation with the second ratchet 27; taking the gear 8 in the attached figure as an example, when the motor 13 drives the worm 15 to rotate clockwise, the first ratchet 18 will not be blocked by the first ratchet 19, but will rotate clockwise synchronously with the worm 15, then the rotating wheel 17 corresponding to the first ratchet 18 cannot rotate, then the rotating cylinder 4 located on the left side of the chassis shell 1 remains fixed, and the second ratchet 26 is blocked by the second ratchet 27 during rotation, so it will drive the corresponding rotating wheel 17 to rotate, and finally the rotating cylinder 4 located on the right side of the chassis shell 1 is rotated, in this state, the fan embedded in the rotating cylinder 4 on the right side is driven, and the wind blown out by the fan realizes a large-scale spraying of the inside of the chassis shell 1 as the air outlet plate 5 rotates. When the worm 15 is driven by the motor 13 to rotate for a set time, the motor 13 rotates in the opposite direction to drive the worm 15 to rotate counterclockwise. At this time, the rotating cylinder 4 on the left side of the chassis shell 1 will rotate, while the rotating cylinder 4 on the right side will remain stationary. The fan inside the rotating cylinder 4 on the left side is started to blow a large range of air inside the chassis shell 1. Such a reciprocating cycle can achieve a more thorough cleaning of the dust attached to the mainboard inside the chassis shell 1.

[0034] The reason why the dust inside the chassis shell 1 can be cleaned in the above scheme is that the exhaust pipes 2 on both sides of the chassis shell 1 are in an open state, but it is definitely not realistic for the two fans to be in an alternating working state all the time (generally, the fans are started periodically to clean the dust), and the two exhaust pipes 2 have a large open area. When the fans are not working, external dust will fall into the main board inside the chassis shell 1 through the two exhaust pipes 2 in large quantities. Therefore, it is necessary to make corresponding settings for the sealing of the exhaust pipes 2. When the fans are working, the corresponding exhaust pipes 2 are opened, and when the fans are not working, both exhaust pipes 2 can be in a closed state, which can prevent dust from entering the interior of the chassis shell 1.

[0035] In order to achieve the above-mentioned effect, a blocking piece is slidably installed inside each exhaust tube 2 of the present invention. The blocking piece adopts a circular plate that is compatible with the inner diameter of the exhaust tube 2, and a through hole 10 that is compatible with the outer diameter of the fixed tube or the rotating tube 4 is opened at the center of the circular plate. The circular plate is slidably sleeved on the fixed tube, and a paddle plate 12 is also integrally formed and connected on the circular plate. The paddle plate 12 is coaxially arranged with the corresponding gear 8; the two hanging plates 14 are rotatably installed with the first sprocket 22 on one side facing each other, and the second sprocket 23 is fixedly sleeved on the circumferential surface of the worm 15 respectively, and a chain is sleeved between the first sprocket 22 and the second sprocket 23. A threaded rod 21 is also fixedly connected to the center of the first sprocket 22 in the horizontal direction, and a sliding plate 20 is arranged between the threaded rod 21 and the worm 15. The upper end of the sliding plate 20 is threadedly connected to the threaded rod 21, and the lower end is slidably sleeved on the worm 15. An elastic spring is connected between the middle part of the sliding plate 20 and the corresponding hanging plate 14. The spring 24 and the push rod 25 are installed as sliding guides at the internal axis of both ends of the worm 15. One end of the push rod 25 is magnetically connected to the lower end of the corresponding sliding piece 20, and the other end passes through the rotating wheel 17 and the gear 8 in sequence and is connected to the corresponding toggle piece 12 (note that the toggle piece 12 and the push rod 25 are connected in a detachable manner). When the worm 15 rotates, the second sprocket 23 is driven to rotate, and the second sprocket 23 drives the first sprocket 22 to rotate through the chain. The synchronous rotation of the threaded rod 21 and the first sprocket 22 will drive the sliding piece 20 to slide relative to the worm 15. Since the lower end of the sliding piece 20 is magnetically connected to the push rod 25, when the sliding piece 20 slides relative to the worm 15, the push rod 25 is driven to move synchronously with it, prompting the push rod 25 to act on the toggle piece 12, so that the blocking piece moves toward the outside of the exhaust pipe 2, and finally a gap is formed, and the wind flow with dust flows out from the gap between the blocking piece and the exhaust pipe 2.

[0036] It should be particularly pointed out that the ends of the two threaded rods 21 facing each other are connected to limit plates to prevent the sliding piece 20 from slipping off the threaded rods 21, and no threads are provided at both ends of the threaded rods 21 for the sliding piece 20 to slide. In the initial state, the two sliding pieces 20 are located on the side close to the limit plate, and in this state, the spring 24 is in a stretched state. Under the action of the spring 24 in the stretched state, the sliding piece 20 has a tendency to move toward the hanging plate 14, but because the upper end of the sliding piece 20 is threadedly connected to the threaded rod 21, the sliding piece 20 will remain stationary in this position. In addition, the thread directions of the two threaded rods 21 are opposite (the threaded rod 21 close to the first ratchet 18 is a forward thread, and the threaded rod 21 close to the second ratchet 26 is a reverse thread). When the motor 13 drives the worm 15 to rotate clockwise, the second sprocket 23 drives the first sprocket 22 to rotate clockwise synchronously through the chain. , the threaded rod 21 also rotates clockwise to drive the sliding piece 20 to slide relative to the worm 15 toward the hanging plate 14. Since the thread direction of the other threaded rod 21 is opposite, the sliding piece 20 corresponding to the threaded rod 21 will not slide relative to the worm 15. When the moving sliding piece 20 slides toward the hanging plate 14, it will drive the top rod 25 to move toward the outside of the exhaust pipe 2. When the sliding piece 20 moves along one end of the threaded rod 21 to the other end (close to the first sprocket 22), the blocking piece is completely separated from the exhaust pipe 2 to form a gap between the two. At this time, the spring 24 is in a compressed state, and the sliding piece 20 has a tendency to move away from the hanging plate 14, while the worm 15 is still in a clockwise rotation state. Therefore, the sliding piece 20 will stay here and remain motionless. There is always a gap between the blocking piece and the exhaust pipe 2. The airflow generated by the fan on the right side of the chassis shell 1 first blows toward the blocking piece and then blows out along the gap. When the worm 15 rotates counterclockwise, the sliding piece 20 near the first ratchet 18 engages with the threaded rod 21 under the action of the spring 24 and starts to reset, while the sliding piece 20 near the second ratchet 26 starts to move in the direction of the second ratchet 26, that is, the two sliding pieces 20 move toward the second ratchet 26 synchronously. When the sliding piece 20 on the left completes its reset, the corresponding blocking piece resets to complete the blocking of the exhaust cylinder 2, and the blocking piece on the right first opens to form a gap with the exhaust cylinder 2, and the fan inside the rotating cylinder 4 on the left works to generate airflow, and the airflow is discharged from the right side. That is, when the fan on the left side of the chassis shell 1 is working, the blocking piece on the right side is in the open state, and when the fan on the right side of the chassis shell 1 is working, the blocking piece on the left side is in the open state. When the dust removal work is completed, the two blocking pieces are driven by the motor 13 to move, so that the blocking piece in the open state moves toward the inside of the exhaust pipe 2, and moves until the gap just disappears, while the other blocking piece moves outward inside the exhaust pipe 2 but no gap is formed. At this time, the two blocking pieces just block their respective exhaust pipes 2 to prevent external dust from entering the inside of the chassis shell 1.

[0037] In addition, the side of the center of the blocking member in the present invention that faces the inside of the chassis shell 1 can also be set to be conical, and this shape can play a good guiding role for the wind flow.

[0038] Although the above scheme in the present invention can achieve the cleaning of the dust inside the chassis shell 1 by blowing, it only blows the dust inside the chassis shell 1 to the outside. That is to say, when the computer performs self-cleaning, the dust cannot be effectively collected, but is transferred from the inside of the chassis shell 1 to the outside. In view of this, the sealing member in the present invention can adopt a sponge containing box 9 in the shape of a round box. The side of the sponge containing box 9 facing the inside of the chassis shell 1 is open for filling and setting the sponge 11. When the wind generated by the fan blows towards the sponge 11, the dust mixed in the wind will be adhered to the sponge 11. In order to improve the dust removal efficiency, the sponge 11 is kept in a wet state as much as possible, so that the dust can be "locked" more quickly and effectively after contacting the wet sponge 11, thereby preventing the dust inside the chassis shell 1 from being directly sprayed to the outside, causing indoor dust pollution.

[0039] When the sponge 11 inside the sponge holding box 9 is used for a long time, it will collect a lot of dust. On the other hand, the moisture inside the sponge 11 will continue to evaporate and become dry. Therefore, it is necessary to clean and moisten the sponge 11 regularly. In view of this practical demand, the several L-shaped rods on the outside of the fixed cylinder in the present invention are detachably connected to the outer wall of the exhaust cylinder 2. Correspondingly, the fixed cylinder and the rotating cylinder 4 also adopt a detachable plug-in structure. Of course, the present invention does not make specific restrictions on the above two detachable structures, and it is sufficient to adopt conventional structures in the field and achieve reliable connection and disassembly.

[0040] In the description of the present invention, the terms "first", "second", "another", and "yet another" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0042] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A desktop computer case with a cleaning function, comprising a case shell (1), characterized in that: Exhaust ducts (2) in communication with the chassis shell (1) are symmetrically provided on both sides of the chassis shell (1); a rotating cylinder (4) is rotatably mounted at the inner axis of each exhaust duct (2); a fan is pre-buried inside the rotating cylinder (4); an output end of the fan is connected to an air outlet plate (5) along an axial direction perpendicular to the rotating cylinder (4); ventilation holes are evenly distributed on the outer wall of the air outlet plate (5) along its length direction; the two groups of fans work alternately to blow air into the interior of the chassis shell (1); and when each fan is working, the rotating cylinder (4) is in a rotating state; A rotating ring (7) is concentrically arranged on the outer side of the rotating cylinder (4); the rotating ring (7) and the rotating cylinder (4) are connected via a plurality of connecting rods (6); meshing teeth are distributed in an annular pattern on the outer circumference of the rotating ring (7); and a gear (8) meshing with the meshing teeth is rotatably mounted on the top of the exhaust cylinder (2); A rotating wheel (17) is rotatably mounted at a position corresponding to each gear (8) inside the chassis shell (1). The rotating wheel (17) is coaxially arranged with the corresponding gear (8) and fixedly connected. A motor (13) is fixed at the top of the inner side of the chassis shell (1). The motor shaft of the motor (13) is arranged in a vertical direction, and the bottom of the motor (13) is fixedly sleeved with a worm wheel (16). A worm (15) is coaxially arranged between the two rotating wheels (17). The middle part of the worm (15) is meshed with the worm wheel (16). The worm (15) is connected to the worm wheel (16) through the worm wheel (15). The worm (15) is suspended in the chassis shell (1) through the hanging plates (14) distributed on both sides, and the worm (15) is extended along the axial direction to the two ends to contact the corresponding rotating wheels (17), and then the first ratchet (18) and the second ratchet (26) are respectively fixedly sleeved, and the two rotating wheels (17) are respectively hingedly connected with the first ratchet (19) and the second ratchet (27), wherein the first ratchet (19) is in one-way meshing cooperation with the first ratchet (18), and the second ratchet (26) is in one-way meshing cooperation with the second ratchet (27); A fixing frame (3) is fixed to the outside of each exhaust cylinder (2), the fixing frame (3) comprising a fixing cylinder arranged concentrically with the exhaust cylinder (2) and L-shaped rods evenly distributed along the radial direction, the end of each L-shaped rod being detachably connected to the outer wall of the exhaust cylinder (2), the rotating cylinder (4) and the fixing cylinder having the same diameter, the two being coaxially arranged and detachably connected; A blocking piece is slidably mounted inside each exhaust tube (2). The blocking piece is a circular plate that matches the inner diameter of the exhaust tube (2), and a through hole (10) that matches the outer diameter of the fixed tube or the rotating tube (4) is formed through the center of the circular plate. The circular plate is slidably sleeved on the fixed tube or the rotating tube (4), and a paddle plate (12) is integrally formed and connected to the circular plate. The paddle plate (12) and the corresponding gear (8) are coaxially arranged. When one of the fans is working, the blocking piece corresponding to the air outlet end of the fan moves inside the exhaust tube (2) so that a gap is formed between the blocking piece and the exhaust tube (2) for the airflow to be discharged. The blocking member is a round box-shaped sponge containing box (9), and the side of the sponge containing box (9) facing the inside of the chassis shell (1) is open and filled with sponge (11).

2. The desktop computer case with cleaning function according to claim 1, characterized in that: The two hanging plates (14) are rotatably mounted on one side facing each other, and the circumferential surfaces of the worm gear (15) are respectively and fixedly sleeved with the second sprocket (23), and a chain is sleeved between the first sprocket (22) and the second sprocket (23). The center of the first sprocket (22) is also fixedly connected with a threaded rod (21) in the horizontal direction, and a sliding plate (20) is arranged between the threaded rod (21) and the worm gear (15). The upper end of the sliding plate (20) is threadedly connected to the threaded rod (21), and the lower end is slidably sleeved on the worm gear (15). A spring (24) is connected between the middle part of the sliding plate (20) and the corresponding hanging plate (14). A push rod (25) is slidably installed at the internal axis of both ends of the worm gear (15). One end of the push rod (25) is magnetically connected to the lower end of the corresponding sliding plate (20), and the other end passes through the rotating wheel (17) and the gear (8) in sequence and is connected to the corresponding toggle plate (12).

3. The desktop computer case with cleaning function according to claim 2, characterized in that: The ends of the two threaded rods (21) facing each other are both connected to a limit plate, and no threads are provided at both ends of each threaded rod (21) for the sliding piece (20) to slide. In an initial state, the two sliding pieces (20) are both located on a side close to the limit plate, and in this state, the spring (24) is in a stretched state. When the sliding piece (20) slides toward the corresponding hanging plate (14) to the end of the threaded rod (21), a gap is formed between the corresponding blocking piece and the exhaust pipe (2), and the spring (24) is in a compressed state. The threaded rod (21) close to the first ratchet (18) is a forward thread, and the threaded rod (21) close to the second ratchet (26) is a reverse thread.

4. The desktop computer case with cleaning function according to claim 2 or 3, characterized in that: The side of the circular plate facing the inside of the chassis shell (1) is conical.

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