Dustproof device and medical equipment

Abstract

The dustproof device is installed at an air inlet of the medical equipment, the air inlet comprises a first end and a second end opposite to each other, the dustproof device comprises a storage reel arranged on the medical equipment, a dustproof screen comprising a storage part in a storage state and a working part in a working state, the storage part is wound around the storage reel, and the working part covers the air inlet, and the dustproof device further comprises an operating mechanism arranged at the first end of the air inlet, the operating mechanism has an open state and a closed state, in the closed state, the operating mechanism fixes an end of the working part to the first end of the air inlet, and in the open state, the operating mechanism releases the end of the working part from the first end of the air inlet to allow the working part to be drawn out from the first end of the air inlet.

Description

Technical Field

[0001] This application relates to the field of medical device protection technology, and more specifically, to a dustproof device and a medical device. Background Technology

[0002] Because the air is not pure enough, medical equipment is now equipped with dust filters at the air inlet. The purpose is to filter the air and prevent impurities and dust in the air from entering the key working parts of the equipment, which would affect the lifespan and performance of the equipment.

[0003] Current dust filters for medical and home medical equipment require users or maintenance personnel to remove and clean them, and if damaged, a new filter must be purchased and installed. This traditional dust filter has several drawbacks in terms of use and maintenance: First, the maintenance process is cumbersome and complex, requiring complete removal and cleaning of the filter, and the cleaning area must be specialized to ensure effective cleaning. Second, the cleaned filter must be thoroughly dried before reinstallation, a time-consuming process. Third, due to the dense and tiny pores of the filter, it is difficult to clean thoroughly without professional cleaning equipment, making it both time-consuming and labor-intensive. Furthermore, the entire cleaning process must be performed while the equipment is stopped, severely impacting continuous operation. More seriously, incomplete cleaning can significantly reduce the dust-proof effect, affecting the equipment's airflow efficiency. Finally, reinstalling a filter that is not completely dry after cleaning may cause internal components to become damp and damaged. These problems make traditional dust filters inconvenient and risky in practical use.

[0004] Therefore, existing technologies urgently need improvement to address the aforementioned problems. Summary of the Invention

[0005] The purpose of this application is to provide a dustproof device and medical equipment to solve the problem of cumbersome maintenance of traditional dustproof nets.

[0006] This application provides a dustproof device, the technical solution of which is as follows: A dustproof device is installed at the air inlet of a medical device. The air inlet includes a first end and a second end positioned opposite each other. The dustproof device includes: a storage roll disposed on the medical device; a dustproof net including a storage portion in a stored state and a working portion in a working state, the storage portion being rolled up around the storage roll, and the working portion covering the air inlet; the dustproof device further includes: an operating mechanism disposed at the first end of the air inlet, the operating mechanism having an open state and a closed state, in the closed state the operating mechanism fixing the end of the working portion to the first end of the air inlet, and in the open state the operating mechanism detaching the end of the working portion from the first end of the air inlet to allow the working portion to be pulled out from the first end of the air inlet.

[0007] Furthermore, this application also proposes that the operating mechanism includes a pressure cap, one end of which is hinged to the housing of the medical device to allow the pressure cap to switch between an open state and a closed state. In the closed state, the other end of the pressure cap presses and fixes the end of the working part to the first end of the air inlet. In the open state, the other end of the pressure cap is detached from the end of the working part to allow the working part to be pulled out from the first end of the air inlet.

[0008] Furthermore, this application also proposes that a clamping part be provided at the other end of the cover, the clamping part protruding from the body of the cover, and in the closed state, the clamping part abuts against the end of the working part, so that the end of the working part is fixed to the first end of the air inlet.

[0009] Furthermore, this application also proposes that there be multiple clamping parts, which are arranged in a first direction, the first direction being consistent with the direction of movement of the working part when it is pulled out from the first end of the air inlet.

[0010] Furthermore, this application also proposes that the operating mechanism further includes a cutting element, which is movably disposed at the first end of the air inlet to cut off the working portion that is pulled out from the first end of the air inlet.

[0011] Furthermore, this application also proposes that the cutting element is configured to move along a second direction, which is perpendicular to the direction of movement of the working part when it is pulled out from the first end of the air inlet.

[0012] Furthermore, this application also proposes that the other end of the cap is provided with a track and a cutting slit, the cutting slit extending along the length direction of the track, the length direction of the track being consistent with a second direction, the cutting element including a sliding part and a cutting part, the sliding part being configured to cooperate with the track to move along the length direction of the track, and the cutting part passing through the cutting slit to cut the working part during the movement of the sliding part.

[0013] Furthermore, this application also proposes that the track is configured as a chute, and the sliding part is configured to be accommodated in the chute and movable along the length direction of the chute.

[0014] Furthermore, this application also proposes that the dustproof device further includes a dustproof cover, one end of which is hinged to the second end of the air inlet, so that the dustproof cover can switch between an open air inlet position and a closed air inlet position, wherein when the air inlet is closed, the dustproof cover covers the working part.

[0015] Furthermore, this application also proposes that the cover includes a horizontal part and a vertical part that are perpendicular to each other, a pressing part is formed in the horizontal part, and a track and a cutting slit are both formed in the vertical part. When the dust cover is in the position of closing the air inlet and the operating mechanism is in the closed state, the vertical part blocks the other end of the dust cover to restrict the dust cover to the position of closing the air inlet.

[0016] Furthermore, this application also proposes that the dustproof net includes a main body and an edge portion, the main body being provided with several holes to allow air circulation and block dirt, and the edge portion being without holes to provide a pull-out operation for the user.

[0017] Furthermore, this application also proposes that there are two edge portions, symmetrically arranged on both sides of the main body.

[0018] Furthermore, this application also proposes a medical device in which the aforementioned dustproof device is installed at the air inlet.

[0019] Furthermore, this application also proposes that the medical device includes a housing, a storage roll is disposed inside the housing, an air inlet is disposed on one side wall of the housing, and there is a gap between the side wall and a bottom wall of the housing, the height of the gap being greater than the thickness of the dustproof net to allow the dustproof net to pass through, thereby covering the air inlet from the outside of the side wall.

[0020] Furthermore, this application also proposes that the dustproof device further includes a guide roller, which is disposed in the gap, and a channel is formed between the guide roller and the bottom wall, so that the dustproof net slides in contact with the circumferential surface of the guide roller when passing through the channel.

[0021] As can be seen from the above, the dustproof device and medical equipment provided in this application can quickly fix and pull out the dustproof net through the operating mechanism without completely removing it for cleaning. This solves the problems of cumbersome maintenance and long downtime of traditional dustproof nets, and has the advantages of simplifying the maintenance process, reducing downtime, and improving the efficiency of use. Attached Figure Description

[0022] Figure 1 A schematic diagram of a medical device provided in this application.

[0023] Figure 2 This is a schematic diagram of a dustproof device for a medical device provided in this application.

[0024] Figure 3 Another schematic diagram of a dustproof device for a medical device provided in this application.

[0025] Figure 4 Another schematic diagram of a dustproof device for a medical device provided in this application.

[0026] Figure 5 Another schematic diagram of a dustproof device for a medical device provided in this application.

[0027] Figure 6 Another schematic diagram of a dustproof device for a medical device provided in this application.

[0028] Figure 7A schematic diagram of the operating mechanism of a dustproof device for a medical device provided in this application.

[0029] Figure 8 Another schematic diagram of the operating mechanism of a dustproof device for a medical device provided in this application.

[0030] Figure 9 A schematic diagram of a dustproof net for a dustproof device of a medical device provided in this application.

[0031] In the diagram: 1. Storage scroll; 2. Dustproof net; 21. Storage section; 22. Working section; 24. Main body; 25. Edge section; 3. Air inlet; 31. First end; 32. Second end; 4. Operating mechanism; 41. Pressure cover; 411. Pressing part; 412. Main body; 413. Track; 414. Cutting seam; 415. Horizontal part; 416. Vertical part; 42. Cutting part; 421. Sliding part; 422. Cutting part; 5. Shell; 51. Side wall; 52. Bottom wall; 6. Dustproof cover; 7. Guide scroll; D1. First direction; D2. Second direction. Detailed Implementation

[0032] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Existing medical equipment typically uses fixed dust filter structures for air inlets, requiring users to periodically disassemble and clean them. Because the dust filter is fixedly connected to the equipment housing, maintenance must be performed by stopping the equipment. The disassembled dust filter requires professional cleaning equipment and must be completely dry before reinstallation. This maintenance method results in prolonged downtime, complex procedures, and the risk of equipment malfunction due to reinstalling an uncleaned dust filter.

[0034] To address the aforementioned issues, the inventors of this application noticed the conflict between the efficiency of dust filter replacement and the continuity of equipment operation. Analysis revealed that designing the dust filter as a partially replaceable structure with rapid replacement capabilities could effectively reduce maintenance downtime. Further research showed that using a roll-up storage structure combined with a segmented usage scheme allows for partial replacement of the dust filter while the equipment is running. The key breakthrough lies in designing a mechanism that can both secure the working section of the dust filter and allow for rapid release, ensuring that the replacement operation does not disrupt normal equipment operation.

[0035] Therefore, as Figures 1-4 As shown, this application proposes a dustproof device for an air inlet 3 of a medical device, including a storage reel 1 mounted on the device, which carries a dustproof net 2 having a stored state and a working state. The dustproof net 2 is divided into a storage portion 21 that is wound around the reel and a working portion 22 that covers the air inlet 3. The device is specially configured with an operating mechanism 4 located at the first end 31 of the air inlet 3. This mechanism has a working state that fixes the end of the working portion 22 and an open state that releases the end, enabling quick replacement of the working section of the dustproof net 2 through state switching.

[0036] The storage reel 1 is a rotating component that carries and stores the dustproof net 2. It can be implemented using a metal shaft with damping bearings. Its function is to store spare dustproof net 2 material in an orderly manner and control the release tension. The storage part 21 of the dustproof net 2 refers to the unused area wound on the reel, while the used part refers to the effective filtration area covering the air inlet 3 after unfolding. This segmented structure allows the dustproof net 2 to be used in sections, extending its overall service life. The operating mechanism 4 is a locking device located at the first end 31 of the air inlet 3. It can be implemented using a mechanical clamping mechanism. Its core function is to quickly fix or release the end of the dustproof net 2, ensuring that the working section stably covers the air inlet 3.

[0037] Specifically, when the dust filter 2 needs to be replaced, the operating mechanism 4 switches to the open state to release the fixation on the end of the dust filter 2. The user can pull the dust filter 2 along the length of the air inlet 3, allowing the new working section to be released from the storage roll 1 and cover the air inlet 3. After replacement, the operating mechanism 4 returns to the closed state, firmly fixing the end of the new working section. The entire process does not require disassembly of equipment parts, and the equipment can continue to operate while the dust filter 2 is being replaced.

[0038] Through the above technical solution, this application achieves tool-free and rapid replacement of dustproof nets, avoiding downtime losses caused by disassembly and cleaning. The partial replacement of the working section of the dustproof net reduces maintenance workload, allowing users to complete maintenance without specialized cleaning equipment, greatly improving the convenience of maintenance operations.

[0039] like Figure 2 , Figure 3As shown, this application further proposes an operating mechanism 4 including a pressure cap 41, one end of which is hinged to the housing 5 of the medical device to allow the pressure cap 41 to switch between an open state and a closed state. In the closed state, the other end of the pressure cap 41 presses and fixes the end of the working part 22 to the first end 31 of the air inlet 3. In the open state, the other end of the pressure cap 41 is detached from the end of the working part 22 to allow the working part 22 to be pulled out from the first end 31 of the air inlet 3.

[0040] The pressure cap 41 is a covering component used to fix the end of the dustproof net 2 and achieve state switching. Specifically, it can be a plate-shaped component with a hinged structure made of metal or plastic. Its hinged end is connected to the equipment housing 5, and the other end controls the fixing state of the dustproof net 2 through pressing or releasing actions. The hinge refers to a connection method that allows the pressure cap 41 to rotate around a fixed axis. This can be achieved through a structure where a pin and a shaft hole cooperate, allowing the pressure cap 41 to open and close based on a single fulcrum. Pressing and fixing refers to restricting the end of the dustproof net 2 to a specific position through mechanical pressure. Specifically, this can be achieved by applying vertical pressure to the end of the pressure cap 41, causing friction between the dustproof net 2 and the edge of the air inlet 3 to achieve fixation.

[0041] Specifically, when the dust filter 2 needs to be replaced or adjusted, the pressure cap 41 switches from the closed state to the open state, and its end releases the pressure on the end of the dust filter 2, at which point the dust filter 2 can be pulled away from the air inlet 3. After the operation is completed, the pressure cap 41 returns to the closed state, and its end re-presses the dust filter 2 to ensure its stable coverage position. In this process, the hinged structure simplifies the opening and closing action of the pressure cap 41, and the dust filter 2 can be fixed and released without completely disassembling the parts.

[0042] like Figures 4-6 As shown, this application further proposes that a pressing part 411 be provided at the other end of the pressure cover 41. The pressing part 411 protrudes from the main body 412 of the pressure cover 41. In the closed state, the pressing part 411 abuts against the end of the pressing working part 22, so that the end of the working part 22 is fixed to the first end 31 of the air inlet 3.

[0043] The pressing part 411 refers to a protruding structure at the end of the pressure cap 41 for applying pressure. Specifically, it can be implemented using an elastic rubber block or a metal boss with anti-slip texture, generating positive pressure on the contact surface through physical deformation. The pressing and abutting refers to generating frictional constraint through mechanical contact, specifically using downward pressure in the vertical direction or lateral pressure at an inclined angle, using the frictional force of the contact surface to restrict the movement of the dustproof net 2.

[0044] Specifically, when the cover 41 is closed, the clamping part 411 forms surface contact with the end of the dustproof net 2. Under the lever action of the hinged structure, the pressure transmitted by the main body 412 of the cover 41 is concentrated and applied to the clamping part 411, so that a stable friction is formed between the end of the dustproof net 2 and the edge of the air inlet 3. When it is necessary to replace the dustproof net 2, the cover 41 is switched to the open state, the clamping part 411 is disengaged from the dustproof net 2, and the dustproof net 2 can be freely removed.

[0045] In the above technical solution, the protruding structure of the pressing part 411 makes the contact pressure distribution more uniform, prevents the dustproof net 2 from shifting under equipment vibration or airflow impact, and at the same time reduces the wear caused by repeated opening and closing of the operating mechanism 4, extending the service life of the dustproof device.

[0046] like Figures 4-7 As shown, this application further proposes that the number of clamping parts 411 is multiple, and the multiple clamping parts 411 are arranged in a first direction D1, which is consistent with the moving direction of the working part 22 when it is pulled out from the first end 31 of the air inlet 3.

[0047] The clamping part 411 refers to the structure located at the end of the pressure cover 41 for fixing the dustproof net 2. Specifically, it can be implemented using a protrusion or an elastic buckle. Its function is to generate friction through physical contact to limit the displacement of the dustproof net 2. The first direction D1 refers to the direction of movement of the dustproof net 2 when it is pulled out. Specifically, it can be defined by the length direction of the pressure cover 41 or the extension direction of the edge of the air inlet 3. This direction is parallel to the unfolding path of the dustproof net 2 to ensure that the distribution of clamping force matches the direction of force.

[0048] Specifically, when the operating mechanism 4 is in the closed state, multiple clamping parts 411 are arranged at intervals along the pulling direction of the dustproof net 2, and each clamping part 411 independently applies pressure to the end of the dustproof net 2. Since the arrangement direction of the clamping parts 411 is consistent with the force direction of the dustproof net 2, during equipment operation, the tension generated by the airflow impact on the dustproof net 2 is distributed and borne by multiple clamping parts 411. For example, three to five rectangular protrusions can be provided at the end of the pressure cover 41. These protrusions are equidistantly distributed along the length of the pressure cover 41. When the pressure cover 41 is closed, each protrusion presses against different positions on the edge of the dustproof net 2, forming multi-point fixation.

[0049] This solution arranges multiple clamping parts 411 along the direction of force, so that the tensile force borne by the end of the dustproof net 2 is distributed to multiple contact points, which not only reduces the load intensity of a single clamping part 411, but also avoids the overall displacement of the dustproof net 2 due to local loosening.

[0050] like Figures 5-7As shown, this application further proposes that the operating mechanism 4 also includes a cutting element 42, which is movably disposed at the first end 31 of the air inlet 3 to cut off the working part 22 that is pulled out from the first end 31 of the air inlet 3.

[0051] The cutting element 42 refers to the structure used to cut the dustproof net 2. Specifically, it can be implemented using a blade or a serrated metal sheet, and its moving trajectory forms a cutting angle with the unfolding direction of the dustproof net 2. "Movable" means that the cutting element 42 has the ability to slide along a specific path, which can be achieved through a slide rail or guide groove structure, allowing the cutting action to cover the unfolded width of the dustproof net 2.

[0052] Specifically, when the pressure cap 41 is open, the working part 22 of the dust filter 2 is drawn away from the air inlet 3. At this time, the cutting part 42 moves perpendicular to the direction of the dust filter 2's withdrawal, for example, by manual pushing or mechanical transmission, so that the cutting part 422 penetrates the dust filter 2 to complete the cutting operation. During the movement of the cutting part 42, the dust filter 2 is continuously tightened to ensure that the cut edge remains flat. After cutting, the cut-off dirty part can be disposed of as waste.

[0053] This solution directly removes the contaminated section of the dustproof netting using a cutting device, avoiding disassembly and equipment downtime. Through this technical solution, this application achieves rapid replacement of the contaminated section of the dustproof netting, eliminating the need for cleaning and drying processes and reducing equipment downtime. The cut edges of the dustproof netting retain their intact structure, ensuring stable coverage during subsequent use.

[0054] like Figure 3 , Figure 7 As shown, this application further proposes that the cutting element 42 is configured to move along a second direction D2, which is perpendicular to the direction of movement of the working part 22 when it is pulled out from the first end 31 of the air inlet 3.

[0055] The cutting component 42 refers to the mechanical part used to cut the working part 22 of the dustproof net 2. Specifically, it can be implemented using a blade structure with a cutting edge. Its function is to cut off the used part when the dustproof net 2 needs to be replaced. The second direction D2 refers to the spatial movement path that forms a right angle with the direction in which the dustproof net 2 is pulled. Specifically, it can be implemented through the physical constraints of a track or a chute. This direction design ensures that the cutting action is orthogonal to the unfolding direction of the dustproof net 2, thereby preventing the dustproof net 2 from shifting during the cutting process.

[0056] Specifically, when the dust filter 2 needs to be replaced, the operating mechanism 4 switches to the open state, releasing the end of the dust filter 2 from its fixed position. The user pulls the working part 22 outward from the first end 31 of the air inlet 3, at which time the storage reel 1 continuously releases the dust filter 2. When the new dust filter 2 covers the required length, the cutting part 42 moves along the second direction D2 perpendicular to the pulling direction, and its blade contacts the dust filter 2 to complete the cutting action. The used part after cutting can be disposed of as waste.

[0057] Through the above technical solution, this application achieves rapid segmented replacement of the dustproof net, effectively solving the problem of equipment downtime caused by the need for complete disassembly and cleaning in traditional solutions. The orthogonal design of the cutting direction ensures the stability of the cutting action.

[0058] like Figures 6-8 As shown, this application further proposes that the other end of the pressure cap 41 is provided with a track 413 and a cutting slit 414, the cutting slit 414 extending along the length direction of the track 413, the length direction of the track 413 being consistent with the second direction D2, the cutting element 42 including a sliding part 421 and a cutting part 422, the sliding part 421 being configured to cooperate with the track 413 to be movable along the length direction of the track 413, and the cutting part 422 passing through the cutting slit 414 to cut the working part 22 during the movement of the sliding part 421.

[0059] The track 413 refers to the guide structure provided on the pressure cover 41, which can be implemented in the form of a groove. The length direction of the groove is consistent with the moving direction of the cutting part 42, and it is used to guide the cutting part 42 to move along a predetermined path. The cutting slit 414 refers to the narrow opening provided on the pressure cover 41, which can be implemented in the form of a straight slit. Its extension direction is consistent with the length direction of the track 413, and it is used to accommodate the cutting part 422 to pass through and cut the dustproof net 2. The sliding part 421 refers to the component on the cutting part 42 that cooperates with the track 413, which can be implemented in the form of a slider or a protrusion structure. It achieves linear movement along the direction of the track 413 by embedding itself in the groove. The cutting part 422 refers to the component on the cutting part 42 that performs the cutting action, which can be implemented in the form of a blade or a saw tooth structure. When the sliding part 421 moves, it passes through the cutting slit 414 to linearly cut the dustproof net 2.

[0060] Specifically, when the dust filter 2 needs to be replaced, the operating mechanism 4 switches to the open state, and the pressure cap 41 releases its fixation on the end of the dust filter 2. At this time, the working part 22 of the dust filter 2 can be pulled out from the first end 31 of the air inlet 3. The sliding part 421 of the cutting part 42 moves along the track 413, driving the cutting part 422 to pass through the cutting slit 414, cutting the dirty area of ​​the dust filter 2 as it is pulled out. After cutting, the unused part of the dust filter 2 continues to cover the air inlet 3, achieving quick replacement.

[0061] In the above technical solution, the dustproof net can be cut and replaced online by cooperating with the cutting parts, the track, and the cutting seam, thereby reducing equipment downtime and improving maintenance efficiency.

[0062] like Figures 2-4 As shown, this application further proposes that the dustproof device also includes a dustproof cover 6, one end of which is hinged to the second end 32 of the air inlet 3, so that the dustproof cover 6 can switch between the open air inlet 3 position and the closed air inlet 3 position. When the air inlet 3 is closed, the dustproof cover 6 covers the working part 22.

[0063] The dust cover 6 refers to a movable structure used to cover the air inlet 3. It can be made of metal or plastic sheet, and its edges can be fitted with sealing strips to enhance sealing. The hinge refers to a single-sided fixation achieved through a pivot or hinge structure, allowing the dust cover 6 to rotate around the fixed end. For example, a stainless steel hinge or a flexible connection structure formed by integrated injection molding can be used. The function of switching positions is achieved through manual pushing or mechanical limiting, for example, by setting a slot or magnetic device at the edge of the air inlet 3 to fix the dust cover 6 in its closed state.

[0064] Specifically, when closed, the dust cover 6 completely covers the working part 22 of the dust filter 2 outside the air inlet 3, forming a physical barrier to prevent external dust from directly contacting the dust filter 2. When it is necessary to replace or maintain the dust filter 2, the dust cover 6 can be flipped to the open position, exposing the air inlet 3 and the dust filter 2 for easy operation. The hinged design between the dust cover 6 and the second end 32 of the air inlet 3 allows the opening and closing action to be performed with only one hand, without the need for tools.

[0065] In some embodiments, the dust cover 6 may be slightly larger than the opening of the air inlet 3, for example, its width may be 5-10 mm wider than the air inlet 3 to ensure coverage. The hinge end may have a built-in damping structure to keep the dust cover 6 stationary at any angle and prevent accidental closure.

[0066] This solution adds an openable and closable dust cover, allowing for direct operation during maintenance without disassembling the dust screen. At the same time, the dust cover continuously protects the surface of the dust screen during equipment operation, reducing the rate of dust accumulation and thus reducing the frequency of daily cleaning.

[0067] like Figures 2-5 , Figures 6-8As shown, this application further proposes that the dustproof device also includes a dustproof cover 6, one end of which is hinged to the second end 32 of the air inlet 3, so that the dustproof cover 6 can switch between an open air inlet 3 position and a closed air inlet 3 position. When the air inlet 3 is closed, the dustproof cover 6 covers the working part 22. The pressure cover 41 includes a horizontal part 415 and a vertical part 416 that are perpendicular to each other. A pressing part 411 is formed in the horizontal part 415, and a track 413 and a cutting slit 414 are both formed in the vertical part 416. When the dustproof cover 6 is in the closed air inlet 3 position and the operating mechanism 4 is in the closed state, the vertical part 416 blocks the other end of the dustproof cover 6 to restrict the dustproof cover 6 to the closed air inlet 3 position.

[0068] The horizontal part 415 refers to the horizontal extension of the pressure cover 41 that is perpendicularly connected to the vertical part 416. It can be made by stamping metal sheet and is used to support the fixing function of the pressing part 411 on the end of the dustproof net 2. The vertical part 416 refers to the vertical extension of the pressure cover 41 that is perpendicularly connected to the horizontal part 415. It can be integrally formed with the horizontal part 415 using injection molding and is used to support the track 413 structure and restrict the movement of the dustproof cover 6. The dustproof cover 6 is a plate-shaped component covering the outside of the air inlet 3. It can be made using a hinge structure with a damping pivot and is used to prevent external dust from entering the equipment when in the closed position.

[0069] Specifically, when the operating mechanism 4 is in the closed state, the horizontal part 415 of the pressure cover 41 fixes the end of the dustproof net 2 to the edge of the air inlet 3 through the pressing part 411, while the vertical part 416 physically interferes with the free end of the dustproof cover 6. At this time, the dustproof cover 6 is blocked by the vertical part 416 and cannot open by itself, ensuring that the air inlet 3 is completely closed when the equipment is running. When it is necessary to replace the dustproof net 2, the operator can push the cutting part 42 to move along the track 413 of the vertical part 416, and the cutting part 422 cuts off the contaminated dustproof net 2 part through the cutting slit 414. After the cutting is completed, the dustproof cover 6 can be rotated open around the hinge end. At this time, the vertical part 416 releases the restriction on the dustproof cover 6, allowing the new dustproof net 2 to be pulled out to cover the air inlet 3.

[0070] This solution utilizes the mechanical interference between the vertical part of the pressure cap and the dust cover to form a double-locking structure, which both secures the dust net and restrains the dust cover. Simultaneously, the cutting track is integrated into the vertical part of the pressure cap, allowing the dust net to be replaced directly on the equipment surface without disassembling any parts.

[0071] like Figure 9 As shown, this application further proposes a dustproof net 2 including a main body 24 and an edge 25. The main body 24 is provided with a plurality of holes to allow air circulation and block dirt, while the edge 25 is not provided with holes to provide a user pull-out operation.

[0072] The main body 24 refers to the main area of ​​the dustproof net 2 that covers the air inlet 3. It can be implemented using a mesh structure or perforated plate. The size of the holes can be adjusted according to the filtration requirements. It is used to block dust and impurities from entering the equipment while allowing air to circulate.

[0073] The edge portion 25 refers to the non-perforated area located on both sides of the main body portion 24. Specifically, it can be made of the same material as the main body portion 24 but without perforation. By increasing the mechanical strength of the edge portion, it is easier for users to directly hold or clamp it for pull-out operations, avoiding deformation or damage to the dustproof net 2 due to contact with the perforated area.

[0074] Specifically, when it is necessary to replace or adjust the dust filter 2, the user can pull the dust filter 2 out from the air inlet 3 by operating the edge part 25. The main body 24 covers the air inlet 3 to complete the filtration function, while the edge part 25, due to its non-porous structure, provides sufficient gripping area, allowing the user to complete the operation without touching the perforated part, thereby reducing the risk of tearing or contaminating the dust filter 2 due to accidental contact.

[0075] This solution, by setting a non-porous edge section, ensures that users only come into contact with the edge area during operation, thus protecting the integrity of the main body's filtering function and improving the ease of operation.

[0076] like Figure 9 As shown, this application further proposes a dustproof net 2 including a main body 24 and an edge portion 25. The main body 24 is provided with several holes to allow air circulation and block dirt. The edge portion 25 is not provided with holes to provide a user pull-out operation. There are two edge portions 25, which are symmetrically arranged on both sides of the main body 24.

[0077] The edge portion 25 refers to the area on both sides of the dustproof net 2 without through holes. This can be achieved using thickened materials or wear-resistant fabrics. Its function is to provide a force-applying area for the user's pull-out operation, preventing direct contact with the perforated main body 24 and thus avoiding structural damage. Symmetrical arrangement means that the two edge portions 25 are located on the left and right sides of the main body 24 respectively and are mirror-distributed. This can be achieved through integral molding or sewing processes. Its function is to maintain balanced force on both sides of the dustproof net 2 during the pull-out process, preventing excessive force on one side from causing displacement or tearing.

[0078] Specifically, when the user needs to replace or adjust the dust filter 2, they can simultaneously grasp the two side edges 25 with both hands to pull it out. The symmetrically distributed edges 25 ensure that the pulling force generated by the pulling action is evenly transmitted to the main body 24, preventing the dust filter 2 from twisting when moving between the storage roll 1 and the air inlet 3 due to unilateral force.

[0079] This solution protects the structural integrity of the main body by using symmetrically arranged, non-perforated edges, while also improving operational stability through balanced force application on both sides, and preventing dustproof net failure due to wear on one side.

[0080] like Figures 1-4 As shown, this application further proposes a medical device with a dustproof device installed at its air inlet 3. The dustproof device includes a storage roll 1, a dustproof net 2, and an operating mechanism 4. The dustproof net 2 includes a storage part 21 in a storage state and a working part 22 covering the air inlet 3. The operating mechanism 4 has a closed state that fixes the end of the dustproof net 2 and an open state that allows the dustproof net 2 to be pulled out.

[0081] Medical equipment refers to diagnostic or monitoring instruments or devices containing sophisticated electronic components and requiring continuous ventilation and heat dissipation, such as ultrasound equipment, ventilators, CT scanners, or hemodialysis machines. The dustproof device achieves rapid maintenance through a replaceable dustproof mesh 2 structure, avoiding the cumbersome operation of complete disassembly in traditional solutions. The operating mechanism 4 controls the coverage area of ​​the dustproof mesh 2 through mechanical locking and releasing functions, for example, by using a hinged pressure cap 41 or magnetic buckles for end fixation.

[0082] Specifically, when the dust filter 2 needs to be replaced, the operating mechanism 4 switches to the open state, allowing the user to pull out the working part 22 of the contaminated dust filter 2 from one end of the air inlet 3, while the storage roll 1 releases new dust filter 2 material to cover the air inlet 3. The replacement process of the dust filter 2 does not require disassembling the equipment casing, and the replaced part can be directly removed using the cutting piece 42.

[0083] Through the above technical solution, this application enables medical equipment to complete dust filter maintenance while in continuous operation, and the dust filter replacement operation does not require contact with internal components of the equipment.

[0084] like Figure 4 and Figure 5 As shown, this application further proposes a medical device including a housing 5, a storage roll 1 disposed inside the housing 5, and an air inlet 3 disposed on a side wall 51 of the housing 5. There is a gap between the side wall 51 and a bottom wall 52 of the housing 5, the height of which is greater than the thickness of the dustproof net 2 to allow the dustproof net 2 to pass through, thereby covering the air inlet 3 from the outside of the side wall 51.

[0085] The height of the gap being greater than the thickness of the dustproof net 2 means that the vertical distance between the side wall 51 and the bottom wall 52 exceeds the thickness of the dustproof net 2 material in its natural state. Specifically, this can be achieved by adjusting the assembly tolerance of the side wall 51 and the bottom wall 52 of the shell 5, ensuring that the dustproof net 2 will not generate frictional resistance due to the small gap during the pulling process.

[0086] The outer side of the side wall 51 covering the air inlet 3 means that the dust net 2 completely covers the ventilation hole on the surface of the side wall 51 when it is unfolded. Specifically, this can be achieved by extending the edge of the dust net 2 to the outer edge of the side wall 51, so that the dust net 2 can cover the air inlet 3 without entering the housing 5.

[0087] Specifically, the storage roll 1 inside the housing 5 stores the unused portion of the dust filter 2. When the dust filter 2 needs to be replaced, the operator pulls it outward from the gap between the side wall 51 and the bottom wall 52. Utilizing the structural characteristic that the gap height is greater than the thickness of the dust filter 2, the operator ensures that the dust filter 2 moves smoothly during the pulling process. After the dust filter 2 is fully unfolded, its coverage area extends to the outside of the side wall 51, directly blocking the air inlet 3, forming a physical barrier layer. During this process, there is no need to disassemble the housing 5 or stop the machine; the replacement of the dust filter 2 is completed outside the equipment through the gap structure.

[0088] Through the above technical solution, this application realizes the rapid replacement of dustproof nets while the equipment is in operation. At the same time, by matching the gap height with the thickness of the dustproof net, the smoothness of the pulling action is ensured, and the dustproof net is prevented from being damaged or stuck due to friction.

[0089] like Figure 3 , Figure 5 This application further proposes a medical device, the dustproof device also includes a guide roller 7, the guide roller 7 is disposed in the gap, and a channel is formed between the guide roller 7 and the bottom wall 52, and the dustproof net 2 slides in contact with the circumferential surface of the guide roller 7 when passing through the channel.

[0090] The guide roller 7 is a cylindrical rolling component, which can be made of smooth metal or plastic. Its axis is parallel to the direction of the gap extension and it is connected to the housing 5 via a bearing to achieve free rotation. It guides the dustproof net 2 to move along a predetermined path during the pulling process. The gap refers to the space between the side wall 51 and the bottom wall 52. Its height must be designed to be greater than the thickness of the dustproof net 2, for example, it can be controlled within the range of 0.5 mm to 2 mm to ensure that the dustproof net 2 can pass through without obstruction. The channel refers to the narrow space formed by the outer edge of the guide roller 7 and the inner surface of the bottom wall 52. Specifically, the gap between the guide roller 7 and the bottom wall 52 can be maintained at 0.1 mm to 0.3 mm by adjusting the installation position of the guide roller 7, which is used to constrain the movement trajectory of the dustproof net 2.

[0091] Specifically, when the user pulls out the dustproof net 2, it unfolds from the storage scroll 1 and enters the gap between the side wall 51 and the bottom wall 52. The guide scroll 7 generates rolling or sliding friction during the movement of the dustproof net 2. Within the channel, the dustproof net 2 is bidirectionally limited by the surface of the guide scroll 7 and the bottom wall 52, maintaining its flat, unfolded state and preventing curling or displacement due to its own elasticity.

[0092] This solution effectively reduces the force required for pulling the netting by adding a guide roller, which utilizes sliding or rolling friction. Furthermore, the channel structure formed by the guide roller effectively constrains the movement trajectory of the dust net, preventing lateral displacement during pulling and thus avoiding jamming at the edges of the netting.

[0093] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A dustproof device installed at the air inlet of a medical device, the air inlet comprising a first end and a second end positioned opposite each other, characterized in that, The dustproof device includes: A storage scroll is disposed on the medical device; A dustproof net, comprising a storage section in a stored state and a working section in a working state, wherein the storage section is rolled up around a storage roll and the working section covers the air inlet; An operating mechanism is disposed at the first end of the air inlet. The operating mechanism has an open state and a closed state. In the closed state, the operating mechanism fixes the end of the working part to the first end of the air inlet. In the open state, the operating mechanism disengages the end of the working part from the first end of the air inlet, allowing the working part to be pulled out from the first end of the air inlet.

2. The dustproof device according to claim 1, characterized in that, The operating mechanism includes a pressure cap, one end of which is hinged to the housing of the medical device to allow the pressure cap to switch between an open state and a closed state. In the closed state, the other end of the pressure cap presses and fixes the end of the working part to the first end of the air inlet. In the open state, the other end of the pressure cap is detached from the end of the working part to allow the working part to be pulled out from the first end of the air inlet.

3. The dustproof device according to claim 2, characterized in that, The other end of the cover is provided with a pressing part, which protrudes from the body of the cover. In the closed state, the pressing part abuts against and presses the end of the working part, so that the end of the working part is fixed to the first end of the air inlet.

4. The dustproof device according to claim 3, characterized in that, The number of clamping parts is multiple, and the multiple clamping parts are arranged in a first direction, which is consistent with the movement direction of the working part when it is pulled out from the first end of the air inlet.

5. The dustproof device according to claim 3, characterized in that, The operating mechanism further includes a cutting element, which is movably disposed at the first end of the air inlet to cut off the working portion that is pulled out from the first end of the air inlet.

6. The dustproof device according to claim 5, characterized in that, The cutting element is configured to move along a second direction, which is perpendicular to the direction of movement of the working part when it is pulled out from the first end of the air inlet.

7. The dustproof device according to claim 6, characterized in that, The other end of the pressure cap is provided with a track and a cutting slit, the cutting slit extending along the length direction of the track, the length direction of the track being consistent with the second direction, the cutting element including a sliding part and a cutting part, the sliding part being configured to cooperate with the track to move along the length direction of the track, and the cutting part passing through the cutting slit to cut the working part during the movement of the sliding part.

8. The dustproof device according to claim 7, characterized in that, The dustproof device further includes a dust cover, one end of which is hinged to the second end of the air inlet, allowing the dust cover to switch between an open air inlet position and a closed air inlet position. When the air inlet is closed, the dust cover covers the working part. The pressure cover includes mutually perpendicular horizontal and vertical portions. The pressing portion is formed on the horizontal portion, and the track and the cutting slit are both formed on the vertical portion. When the dust cover is in the closed air inlet position and the operating mechanism is in the closed state, the vertical portion blocks the other end of the dust cover to restrict the dust cover to the closed air inlet position. The dustproof net includes a main body and edge portions. The main body is provided with several holes to allow air circulation and block dirt. The edge portions are not provided with the holes to provide a pull-out operation for the user. There are two edge portions, symmetrically arranged on both sides of the main body.

9. A medical device, characterized in that, The air inlet of the medical device is provided with a dustproof device as described in any one of claims 1-8.

10. The medical device according to claim 9, characterized in that, The medical device includes a housing, a storage roll disposed inside the housing, an air inlet disposed on a side wall of the housing, and a gap between the side wall and a bottom wall of the housing. The height of the gap is greater than the thickness of the dustproof mesh to allow the dustproof mesh to pass through, thereby covering the air inlet from the outside of the side wall. The dustproof device also includes a guide roll disposed in the gap, forming a channel between the guide roll and the bottom wall. When the dustproof mesh passes through the channel, it slides in contact with the circumferential surface of the guide roll.

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