Infectious disease ward ventilator

Abstract

The utility model discloses an infectious disease ward ventilating fan, which relates to the technical field of ventilating fans and comprises a ventilating fan with an air inlet fan and an air outlet fan, an air inlet and an air outlet are arranged on the rear side of the ventilating fan, an air inlet frame is arranged at the position of the air inlet on the ventilating fan, and an air outlet frame is arranged at the position of the air outlet on the ventilating fan. An air outlet frame is arranged at the position of an air outlet in the ventilating fan; a filter element is arranged in the air outlet frame, and a placing frame I for placing the filter element is also arranged in the air outlet frame; a mounting groove is formed in the upper portion of the air outlet frame, a mounting frame mounted in the mounting groove is further arranged on the upper portion of the air outlet frame, and the mounting frame can fix the filter element in the air outlet frame; two groups of fixing structures for fixing the mounting frame are symmetrically arranged on two sides of the air outlet frame; the ventilation fan solves the problem that when a ventilation fan in the prior art exhausts air in a ward of the infectious disease department, germs in the air are likely to be introduced into the ward again or the health of external personnel is affected.

Description

Technical Field

[0001] This utility model relates to the field of ventilation fan technology, and in particular to a ventilation fan for infectious disease wards. Background Technology

[0002] The airborne germs in hospital infection wards contain a high concentration of pathogens. If not treated promptly, they will contaminate the surrounding environment. Patients and staff are in a relatively enclosed environment, making them highly susceptible to cross-infection through respiration.

[0003] In the prior art, application number CN201922299029.5 discloses a ventilation fan for infectious disease wards. This application mainly aims to solve the problem that most existing ventilation fans for infectious disease wards still use a single ventilation fan for ventilation. However, ventilation using a single ventilation fan usually results in incomplete ventilation. Therefore, this application sets up two ventilation fans for infectious disease wards that can be used for air intake and exhaust. This type of ventilation fan can exhaust the air in the ward and introduce outside air into the ward. However, this type of ventilation fan has certain drawbacks. First, the distance between the exhaust port and the air inlet is too close, which can easily cause the exhausted air to be reintroduced into the ward. Second, the air exhausted from the infectious disease ward contains a lot of germs. When these germs are exhausted into the outside air, they can not only be easily reintroduced into the ward by the intake fan, but also easily affect the air quality and cause infection of people in the vicinity. Therefore, this application needs to be improved to make it more suitable for infectious disease wards. Summary of the Invention

[0004] This utility model provides an exhaust fan for an infectious disease ward to solve the problems in the background art.

[0005] This utility model embodiment adopts the following technical solution: a ventilation fan for an infectious disease ward, comprising a ventilation fan with an inlet fan and an outlet fan, wherein an air inlet and an air outlet are provided on the rear side of the ventilation fan, an air inlet frame is provided at the air inlet position of the ventilation fan, and an air outlet frame is provided at the air outlet position of the ventilation fan; a filter element is installed inside the air outlet frame, and a mounting bracket for placing the filter element is also provided inside the air outlet frame; a mounting groove is provided above the air outlet frame, and a mounting bracket installed in the mounting groove is also provided above the air outlet frame, the mounting bracket can fix the filter element inside the air outlet frame; two sets of fixing structures for fixing the mounting bracket are symmetrically arranged on both sides of the air outlet frame, and the mounting bracket can be fixed on the air outlet frame through the fixing structures. This solves the problem in the prior art that when ventilation fans exhaust air from the infectious disease ward, airborne germs are easily reintroduced into the ward or affect the health of outsiders.

[0006] Furthermore, a filter screen is installed on the air intake frame.

[0007] Furthermore, symmetrical sealing grooves are provided on both sides of the mounting groove above the air outlet frame. The sealing grooves are connected to the mounting groove and are used to seal the mounting frame when it is installed on the air outlet frame. Fixed grooves are symmetrically opened on both sides inside the air outlet frame. The two fixed grooves are used to connect the mounting frame to the fixed structure in the air outlet frame.

[0008] Furthermore, a second placement rack is provided below the mounting frame, the second placement rack having the same shape as the first placement rack, and the second placement rack is used to fix the filter element on the mounting frame; a sealing plate is provided on both sides of the top of the mounting frame, and the sealing plate is located in the sealing groove when the mounting frame is placed on the air outlet frame; a fixing rod is symmetrically provided on both sides of the bottom of the mounting frame, each fixing rod is placed in a fixing groove, and each fixing rod is provided with a fixing hole for connection with the fixing structure, and the fixing hole is provided with a threaded groove.

[0009] Furthermore, each of the aforementioned fixed structures is a threaded rod that can rotate on the air outlet frame, and each threaded rod is provided with a knob for easy operation of rotating the threaded rod.

[0010] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0011] This application provides an air outlet frame that filters the exhaust vent of a ventilation fan. The frame contains a replaceable filter element, ensuring that the air exiting the exhaust vent is filtered and does not affect the outside air. This benefits both external personnel and the proper functioning of the ventilation fan. This method solves the problem in existing technologies where ventilation fans, when exhausting air from the infectious disease ward, can easily reintroduce airborne pathogens into the ward or affect the health of external personnel. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the ventilation fan in this utility model from a first angle;

[0014] Figure 2 This is a three-dimensional schematic diagram of the ventilation fan in this utility model from a second angle;

[0015] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 4This is a three-dimensional schematic diagram of the air outlet frame in this utility model;

[0017] Figure 5 This is a partial structural diagram of the air outlet frame in this utility model;

[0018] Figure 6 This is a schematic diagram of the assembly of the air outlet bracket and the mounting bracket in this utility model.

[0019] Attached reference numerals: 1. Exhaust fan; 2. Air inlet; 4. Air inlet frame; 41. Filter screen cover; 3. Air outlet; 5. Air outlet frame; 51. Placement rack one; 52. Mounting slot; 53. Mounting rack; 54. Sealing slot; 55. Fixing slot; 6. Filter element; 56. Placement rack two; 57. Sealing plate; 58. Fixing rod; 7. Fixing structure; 71. Threaded rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0022] Reference Figures 1-6 This utility model provides an exhaust fan for an infectious disease ward, including an exhaust fan 1 with an inlet fan and an outlet fan. An air inlet 2 and an air outlet 3 are provided on the rear side of the exhaust fan 1. An air inlet frame 4 is provided at the air inlet 2, and an air outlet frame 5 is provided at the air outlet 3. A filter element 6 is installed inside the air outlet frame 5, and a placement rack 51 for placing the filter element 6 is also provided inside the air outlet frame 5. A mounting groove 52 is provided above the air outlet frame 5, and a mounting bracket 53 installed in the mounting groove 52 is also provided above the air outlet frame 5. The mounting bracket 53 can fix the filter element 6 inside the air outlet frame 5. Two sets of fixing structures 7 are symmetrically arranged on both sides of the air outlet frame 5 for fixing the mounting bracket 53, and the mounting bracket 53 can be fixed to the air outlet frame 5 through the fixing structures 7.

[0023] The ventilation fan 1 in this application has a sophisticated overall structure. Its core component includes a high-efficiency ventilation assembly that integrates an intake fan and an exhaust fan. An air inlet 2 and an air outlet 3 are precisely positioned at the rear of the ventilation fan 1. These components work together to ensure continuous and orderly air exchange between the inside and outside of the ward. The ventilation fan 1 in this application also features a carefully designed air intake bracket 4 at the location of the air inlet 2. The air intake bracket 4 is ingeniously designed; it not only guides and regulates the incoming air but also blocks external impurities such as dust and large particles to a certain extent, preventing them from flowing directly into the ward and reducing the burden on subsequent air purification processes.

[0024] The air outlet 3 is of paramount importance, as it houses a dedicated air outlet bracket 5. The air outlet bracket 5 is ingeniously designed to house a powerful filter element 6. This filter element 6 acts as a loyal guardian, responsible for intercepting bacteria, viruses, and various fine pollutants, preventing contaminated air from being released into the external environment untreated and causing secondary pollution. To ensure the filter element 6 can perform stably and accurately, a specially designed mounting bracket 51 is also included within the air outlet bracket 5. This bracket is custom-made to the size and shape of the filter element 6, providing just the right amount of support so it remains stable even under strong airflow, while also ensuring a tight fit between the filter element 6 and its surrounding structure, eliminating any gaps that could lead to air leakage.

[0025] Furthermore, an ingeniously designed mounting slot 52 is located above the air outlet bracket 5, and a mounting bracket 53 is installed within this slot. This mounting bracket 53 acts as a "personal bodyguard" for the filter element 6. Once it is securely embedded in the mounting slot 52, it applies just the right amount of pressure to the filter element 6, firmly fixing it within the air outlet bracket 5. No matter how strong the airflow is, the filter element 6 will not shift or loosen, steadily protecting the air outlet of the ward.

[0026] To further enhance the stability of the mounting bracket 53, two sets of meticulously designed fixing structures 7 are symmetrically distributed on both sides of the air outlet bracket 5. These two sets of fixing structures 7 act like sturdy rivets, easily and firmly binding the mounting bracket 53 and the air outlet bracket 5 together to form an indestructible whole. This ensures that all components of the ventilation fan 1 remain coordinated and consistent during frequent operation, continuously supplying fresh and clean air to the infectious disease ward. In this way, the problem of existing ventilation fans 1 easily leading to the reintroduction of airborne germs into the ward or affecting the health of outside personnel when exhausting air from the infectious disease ward is solved.

[0027] Preferably, the air inlet frame 4 is provided with a filter screen 41.

[0028] The filter screen 41 is woven from a special material with fine and uniform mesh, providing excellent interception capabilities. On one hand, it efficiently captures common impurities such as dust particles and hair debris floating in the air, preventing these visible pollutants from entering the ventilation fan 1 with the airflow. This avoids their accumulation on subsequent components such as the air duct and fan blades, reducing the risk of equipment malfunction due to dust accumulation and extending the service life of the ventilation fan 1.

[0029] On the other hand, considering the special environment of the infectious disease ward, the filter screen 41 also has certain antibacterial and antiviral properties. Its surface is specially treated and coated with a layer of antibacterial and disinfecting coating, or it uses a new material that contains antibacterial components. This allows microorganisms such as bacteria and viruses to be effectively inhibited or inactivated when they come into contact with the filter screen 41, minimizing the chance of harmful microorganisms from the outside entering the ward through the ventilation fan 1, and building a solid air protection barrier for patients and medical staff in the ward.

[0030] Moreover, the filter cover 41 is extremely easy to install, employing a snap-on or magnetic design, making it convenient for medical staff to regularly remove it for cleaning or replacement. When the filter cover 41 accumulates too much dust or reaches a certain usage period, it can be easily removed with a simple operation. After thorough cleaning and disinfection, it can quickly be restored to its original condition, once again safeguarding the air purification process in the ward.

[0031] Preferably, a sealing groove 54 is symmetrically arranged on both sides of the mounting groove 52 above the air outlet frame 5. The sealing groove 54 is connected to the mounting groove 52 and is used to seal the mounting frame 53 when it is installed on the air outlet frame 5. A fixing groove 55 is symmetrically opened on both sides inside the air outlet frame 5. The two fixing grooves 55 are used to connect the mounting frame 53 to the fixing structure 7 in the air outlet frame 5.

[0032] When the mounting bracket 53 is installed onto the air outlet bracket 5, the sealing groove 54 plays a crucial sealing role. During air exchange, the airtightness of the airflow directly affects the filtration effect and the accuracy of the airflow direction. Sealing materials such as sealing strips or gaskets can be placed inside the sealing groove 54. When the mounting bracket 53 is embedded into the mounting groove 52, its edge fits tightly against the sealing material inside the sealing groove 54, like adding a seamless "protective cover" to the top of the entire air outlet bracket 5. In this way, not only can clean air filtered by the filter element 6 be effectively prevented from leaking out from the connection between the mounting bracket 53 and the air outlet bracket 5, ensuring the quality of the exhaust air, but also unfiltered outside air can be prevented from flowing back into the air outlet bracket 5, thus maintaining the efficient and stable operation of the entire ventilation system.

[0033] Meanwhile, symmetrical fixing slots 55 are formed on both sides inside the air outlet frame 5. These two fixing slots 55 are the key hubs for connecting the mounting frame 53 and the fixing structure 7. When the mounting frame 53 is placed on the air outlet frame 5, the fixing structure 7 can firmly fix the mounting frame 53 in the air outlet frame 5 by cooperating with the fixing slots 55.

[0034] Preferably, a second placement frame 56 is provided below the mounting frame 53. The second placement frame 56 has the same shape as the first placement frame 51. The second placement frame 56 is used to fix the filter element 6 on the mounting frame 53. A sealing plate 57 is provided on both sides of the top of the mounting frame 53. When the mounting frame 53 is placed on the air outlet frame 5, the sealing plate 57 is located in the sealing groove 54. Fixing rods 58 are symmetrically provided on both sides of the bottom of the mounting frame 53. Each fixing rod 58 is placed in a fixing groove 55. Each fixing rod 58 is provided with a fixing hole 581 connected to the fixing structure 7, and the fixing hole 581 is provided with a threaded groove.

[0035] Once filter element 6 is placed on placement bracket 51, mounting bracket 53 is installed in place, and placement bracket 56 precisely fits above filter element 6. This tight and stable fit acts like double insurance for filter element 6, ensuring that it remains in a fixed position even under the continuous airflow impact of the ventilation fan 1, without shaking or shifting. In this way, filter element 6 can fully exert its filtration efficiency, continuously and effectively intercepting and purifying bacteria, viruses, and various pollutants in the air discharged from the air outlet bracket 5, providing reliable protection for the air environment safety outside the ward.

[0036] The fixing rods 58 are ingeniously designed, symmetrically positioned on both sides of the bottom of the mounting bracket 53. When the mounting bracket 53 is assembled with the air outlet bracket 5, each fixing rod 58 precisely fits into its corresponding fixing slot 55. This one-to-one precise matching, like each piece of a jigsaw puzzle fitting perfectly, ensures the correct positioning of the mounting bracket 53 on the air outlet bracket 5, resulting in a tighter and more orderly connection between the components. More importantly, each fixing rod 58 has a fixing hole 581 for connecting to the fixing structure 7, and the fixing hole 581 also contains a threaded groove. This design provides a reliable and stable connection between the mounting bracket 53 and the fixing structure 7.

[0037] Preferably, each of the fixed structures 7 is a threaded rod 71 that can rotate on the air outlet frame 5, and each threaded rod 71 is provided with a knob to facilitate the rotation of the threaded rod 71.

[0038] In this application, threaded rods 71 ​​are symmetrically distributed on both sides of the air outlet frame 5, bearing the important responsibility of stabilizing the mounting bracket 53. They cooperate closely with the fixing rods 58 on both sides of the bottom end of the mounting bracket 53, forming a stable and convenient connection system. When it is necessary to install or remove the mounting bracket 53, the knobs located on the threaded rods 71 ​​come in very handy. The design of the knobs fully considers the ease of operation for medical staff. They are of moderate size and have a certain anti-slip texture on the surface, so that even if medical staff are wearing rubber gloves, they can easily grasp and apply force.

[0039] During installation, medical staff simply align the fixing rod 58 of the mounting bracket 53 with the fixing slot 55 and gently insert it, then hold the knob and rotate the threaded rod 71. Because the threaded rod 71 has threads, as it rotates, it gradually moves closer to the fixing rod 58 until it tightly abuts against the fixing hole 581 on the fixing rod 58. At this point, the threaded engagement force firmly fixes the mounting bracket 53 onto the air outlet bracket 5, ensuring that the filter element 6 will not shift or loosen during operation, laying the foundation for the efficient and stable operation of the ventilation fan 1.

[0040] Replacing filter element 6 is equally simple. Medical staff simply turn the knob in the opposite direction, gradually moving the threaded rod 71 away from the fixing rod 58, allowing them to easily remove the mounting bracket 53 and replace filter element 6. The entire process is efficient and smooth, greatly saving medical staff's time and energy, allowing them to focus more on patient care.

[0041] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A ventilation fan for an infectious disease ward, characterized in that, It includes a ventilation fan (1) with an inlet fan and an outlet fan. The ventilation fan (1) has an air inlet (2) and an air outlet (3) on its rear side. An air inlet frame (4) is provided at the position of the air inlet (2) on the ventilation fan (1), and an air outlet frame (5) is provided at the position of the air outlet (3) on the ventilation fan (1). The air outlet frame (5) is equipped with a filter element (6), and the air outlet frame (5) is also equipped with a placement rack (51) for placing the filter element (6). An installation groove (52) is provided above the air outlet frame (5), and an installation bracket (53) installed in the installation groove (52) is also provided above the air outlet frame (5). The installation bracket (53) can fix the filter element (6) in the air outlet frame (5). The air outlet frame (5) has two sets of fixing structures (7) symmetrically arranged on both sides for fixing the mounting frame (53). The mounting frame (53) can be fixed on the air outlet frame (5) through the fixing structures (7).

2. The ventilation fan for an infectious disease ward according to claim 1, characterized in that, A filter screen (41) is provided on the air intake frame (4).

3. The ventilation fan for an infectious disease ward according to claim 1, characterized in that, The air outlet frame (5) is also symmetrically provided with sealing grooves (54) on both sides of the mounting groove (52) above the mounting frame (5). The sealing grooves (54) are connected to the mounting groove (52). The sealing grooves (54) are used to seal the mounting frame (53) when it is installed on the air outlet frame (5). The two sides of the air outlet frame (5) are symmetrically provided with fixing grooves (55). The two fixing grooves (55) are used to connect the mounting frame (53) to the fixing structure (7) in the air outlet frame (5).

4. The ventilation fan for an infectious disease ward according to claim 3, characterized in that, Below the mounting frame (53) is a second placement frame (56), which has the same shape as the first placement frame (51). The second placement frame (56) is used on the mounting frame (53) to fix the filter element (6). The top of the mounting bracket (53) is provided with two closed plates (57), and when the mounting bracket (53) is placed on the air outlet bracket (5), the closed plates (57) are located in the closed groove (54); The mounting bracket (53) has symmetrical fixing rods (58) on both sides of its bottom end. Each fixing rod (58) is placed in a fixing groove (55). Each fixing rod (58) has a fixing hole (581) connected to the fixing structure (7), and the fixing hole (581) has a threaded groove.

5. A ventilation fan for an infectious disease ward according to claim 1, characterized in that, Each of the fixed structures (7) is a threaded rod (71) that can rotate on the air outlet frame (5), and each threaded rod (71) is provided with a knob to facilitate the operation of rotating the threaded rod (71).

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