A medical clean room air supply unit having a flow rate detection mechanism

Abstract

This utility model relates to the field of medical facility technology and discloses a medical cleanroom air supply unit with a flow rate detection mechanism. It includes a housing, with a cleaning mechanism installed at the rear end of the housing for cleaning dust accumulated on the surface of the heat sink. A lifting mechanism is installed on the top of the outer wall of the housing to block dust. The cleaning mechanism includes multiple threaded rods installed at the rear end of the housing. Threaded blocks are installed on the outer wall of each threaded rod, with the upper and lower inner walls of the threaded blocks threadedly connected to the outer wall of the threaded rods. In this utility model, when the threaded rods rotate, the threaded blocks are constrained by the threaded transmission and can only move left and right axially, driving the rear cleaning cotton to clean synchronously. This avoids the problem of long-term dust accumulation on the cooling fan blades, which generates additional heat during operation, leading to decreased equipment cooling efficiency and shortened service life.

Description

Technical Field

[0001] This utility model relates to the field of medical facility technology, and in particular to a medical cleanroom air supply unit with a flow rate detection mechanism. Background Technology

[0002] Medical cleanrooms are special environments designed specifically for the high cleanliness requirements of the medical field. Through high-efficiency air filtration systems, strict airflow organization (such as unidirectional or turbulent flow modes), and differential pressure control, they keep the concentration of dust particles, microorganisms, and harmful gases in the air at extremely low levels. At the same time, they precisely regulate temperature, humidity, and air pressure. Their core function is to provide a sterile and dust-free operating space for surgical procedures, sterile preparation production, cell culture, and vaccine development. This can significantly reduce the risk of infection, ensure drug quality, and guarantee the safety of medical technologies. It is a key infrastructure in the modern medical system that ensures precision medicine and sterile operation.

[0003] A medical cleanroom air supply unit with a flow rate detection mechanism is an air supply device that can monitor the air supply flow rate in real time and ensure stable delivery of clean air through a high-efficiency filtration system and airflow control device to maintain indoor cleanliness, temperature, and humidity parameters that meet medical sterility requirements. Existing medical cleanroom air supply units require manual removal of the heat sink plate for cleaning. This cleaning method can clean the heat sink plate to a great extent, but it is very time-consuming and labor-intensive. Current technology improves this by installing a cooling fan inside the heat sink plate. The cooling fan can not only blow away dust from the heat sink plate, but also further improve the heat dissipation efficiency of the equipment and improve the performance of the equipment during operation. However, after a long period of use, more dust will accumulate on the surface of the cooling fan blades, causing the cooling fan to generate more heat during operation, which seriously affects the heat dissipation of the equipment and shortens the service life of the equipment. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a medical cleanroom air supply unit with a flow rate detection mechanism, aiming to improve the problem in the prior art where, when using a cooling fan to clean the heat sink, more dust accumulates on the surface of the cooling fan blades after a long period of use, causing the cooling fan to generate more heat during operation, which seriously affects the heat dissipation of the equipment and shortens the service life of the equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a medical cleanroom air supply unit with a flow rate detection mechanism, comprising a housing, a cleaning mechanism installed at the rear end of the housing for cleaning dust accumulated on the surface of a heat sink, and a lifting mechanism installed at the top of the outer wall of the housing for blocking dust; the cleaning mechanism includes multiple threaded rods installed at the rear end of the housing, and threaded blocks installed on the outer wall of each threaded rod, with the inner walls of the upper and lower ends of the threaded blocks threadedly connected to the outer wall of the threaded rods; a connecting post fixedly connected to the rear side of the outer wall of the threaded block; a cleaning cotton fixedly connected to the rear end of the outer wall of the connecting post; a triangular knob installed on the left side of the upper middle outer wall of the housing, with the right side of the outer wall of the triangular knob fixedly connected to the left side of the outer wall of the threaded rod; and the outer wall of the housing rotatably connected to the outer wall of the threaded rod.

[0006] As a further description of the above technical solution:

[0007] The lifting mechanism includes a top plate, which is installed on the top of the outer wall of the housing. Racks are fixedly connected to the left and right ends of the bottom of the outer wall of the top plate. A slider is fixedly connected to the bottom of the outer wall of the rack. A drive assembly is installed on the bottom outer side of the top plate.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a servo motor mounted on the outer bottom of the top plate. A gear is mounted on the front side of the outer wall of the rack, and the rear side of the outer wall of the gear meshes with the front side of the outer wall of the rack. A limit frame is mounted on the outer wall of the rack, and the outer wall of the limit frame is fixedly connected to the outer wall of the housing. The interior of the limit frame is slidably connected to the outer wall of the rack. A limit shaft is fixedly connected to the middle of the gear, and adjacent ends of the outer wall of the limit shaft are rotatably connected to the outer wall of the housing. The output end of the servo motor is fixedly connected to the outer wall of the limit shaft.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the housing is fixedly connected to the left and right ends of the rear side of the housing, and the inner wall of the front end of the fixed frame is rotatably connected to the outer wall of the threaded rod.

[0012] As a further description of the above technical solution:

[0013] Each of the multiple threaded rods has a pulley fixedly connected to its left outer wall, and a connecting belt is installed on the outer wall of each pulley. The multiple pulleys are connected by a connecting column.

[0014] As a further description of the above technical solution:

[0015] A bracket is fixedly connected to the bottom of the outer wall of the servo motor, and the bottom of the outer wall of the bracket is fixedly connected to the outer wall of the housing.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the housing is provided with sliding grooves on both the left and right sides of the upper middle part, and the outer wall of the slider is slidably connected to the inside of the sliding groove.

[0018] As a further description of the above technical solution:

[0019] An air filter and flow rate detection device is installed inside the housing. An air outlet is installed at the bottom of the air filter and flow rate detection device. The outer wall of the air outlet is fixedly connected to the bottom of the housing. A handle is fixedly connected to each of the four corners of the outer wall of the housing.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when the threaded rod rotates, the threaded block is constrained by the threaded transmission and can only move left and right along the axial direction, driving the cleaning cotton on the rear side to clean synchronously. The fixing frame is fixed inside the housing, and its front end can be passed through by both ends of the threaded rod to provide stable support for the rotation process. This design replaces the traditional cooling fan dust cleaning method, avoiding the problem of the cooling fan blades accumulating dust for a long time, generating additional heat during operation, which leads to a decrease in the heat dissipation efficiency of the equipment and a shortened service life. It achieves efficient cleaning and stable heat dissipation.

[0022] 2. In this utility model, after the servo motor is turned on, the power is transmitted to the gear through the limit shaft to make it rotate, thereby driving the rack to move vertically. When the equipment is stopped, the top plate descends to cover the top of the shell to prevent dust from entering and settling. This design solves the problem that when the equipment is stationary, dust enters through the air inlet, accumulates and reduces the sensitivity of the detection element, resulting in inaccurate wind speed detection values. Attached Figure Description

[0023] Figure 1 This is a front view of a medical cleanroom air supply unit with a flow rate detection mechanism proposed in this utility model.

[0024] Figure 2 This is a perspective view of a medical cleanroom air supply unit with a flow rate detection mechanism proposed in this utility model.

[0025] Figure 3 for Figure 2 Enlarged view at point A;

[0026] Figure 4 This is a side view of a medical cleanroom air supply unit with a flow rate detection mechanism proposed in this utility model.

[0027] Figure 5 This is an exploded view of a medical cleanroom air supply unit with a flow rate detection mechanism proposed in this utility model.

[0028] Figure 6 This is a partial structural cross-sectional view of a medical cleanroom air supply unit with a flow rate detection mechanism proposed in this utility model.

[0029] Figure 7 This is a schematic diagram of the cleaning mechanism of a medical cleanroom air supply unit with a flow rate detection mechanism proposed in this utility model.

[0030] Figure 8 This is a diagram illustrating the lifting mechanism of a medical cleanroom air supply unit with a flow rate detection mechanism proposed in this utility model.

[0031] Legend:

[0032] 1. Housing; 2. Cleaning mechanism; 201. Threaded rod; 202. Threaded block; 203. Pulley; 204. Connecting belt; 205. Cleaning cotton; 206. Triangular knob; 207. Connecting column; 208. Fixing frame; 3. Lifting mechanism; 301. Top plate; 302. Rack; 303. Slider; 304. Drive assembly; 3041. Servo motor; 3042. Limit shaft; 3043. Gear; 3044. Bracket; 3045. Limiting frame; 4. Handle; 5. Slide groove; 6. Air filter and flow rate detection device; 7. Air outlet. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 6 and Figure 7This utility model provides an embodiment of a medical cleanroom air supply unit with a flow rate detection mechanism, comprising a housing 1, a cleaning mechanism 2 installed at the rear end of the housing 1 for cleaning dust accumulated on the surface of the heat sink, and a lifting mechanism 3 installed at the top of the outer wall of the housing 1 for blocking dust; the cleaning mechanism 2 includes multiple threaded rods 201 installed at the rear end of the housing 1, and threaded blocks 202 installed on the outer wall of the threaded rods 201, the inner walls of the upper and lower ends of the threaded blocks 202 being threadedly connected to the outer wall of the threaded rods 201, and a connecting post 207 fixedly connected to the rear side of the outer wall of the threaded blocks 202. A cleaning cotton 205 is fixedly connected to the rear end of the outer wall of the connecting post 207. A triangular knob 206 is installed on the left side of the upper middle outer wall of the housing 1. The right side of the outer wall of the triangular knob 206 is fixedly connected to the left side of the outer wall of the threaded rod 201. The outer wall of the housing 1 is rotatably connected to the outer wall of the threaded rod 201. Fixing brackets 208 are fixedly connected to the left and right ends of the rear side of the inner wall of the housing 1. The inner wall of the front end of the fixing bracket 208 is rotatably connected to the outer wall of the threaded rod 201. Pulleys 203 are fixedly connected to the left end of the outer wall of multiple threaded rods 201. Connecting belts 204 are installed on the outer walls of multiple pulleys 203. Multiple pulleys 203 are connected by transmission through the connecting post 207.

[0035] Specifically, pulleys 203 are installed at the left ends of the two threaded rods 201. The two pulleys 203 form a linkage system through the connecting belt 204 on the outside to ensure synchronous movement. The triangular knob 206 is rigidly connected to the threaded rods 201 by welding. When the operator rotates the triangular knob 206, the rotational power is directly transmitted to the threaded rods 201. Under the action of the connecting belt 204, the two threaded rods 201 rotate synchronously. A threaded block 202 is sleeved on the outside of the threaded rods 201. The threaded block 202 has a threaded structure inside that matches the threaded rods 201. The connection is achieved through threaded engagement. Due to the constraint of the two threaded rods 201, when the threaded rods 201 rotate, the threaded block 202 cannot rotate with them. It can only move left and right along the axial direction of the threaded rods 201. A cleaning cotton 20 is installed on the rear side of the threaded block 202. 5. As the threaded block 202 moves, the cleaning cotton 205 moves synchronously to clean the target area. Inside the housing 1, the fixing bracket 208 is firmly installed, with a specific through hole at its front end, through which both ends of the threaded rod 201 can pass. The fixing bracket 208 not only provides a stable support point for the threaded rod 201, ensuring its smooth rotation, but also effectively limits the radial displacement of the threaded rod 201, improving the stability and reliability of the entire transmission structure. This design solves the drawbacks of traditional cooling fan cleaning. In the past, when using cooling fans to clean the heat sink, dust would accumulate on the surface of the fan blades over time. This dust not only affects the normal operation of the fan, but also causes the cooling fan to generate extra heat during operation, which seriously interferes with the heat dissipation effect of the equipment and significantly reduces the service life of the equipment.

[0036] Reference Figure 4 , Figure 5 and Figure 8The lifting mechanism 3 includes a top plate 301, which is installed on the top of the outer wall of the housing 1. Racks 302 are fixedly connected to the left and right ends of the bottom of the outer wall of the top plate 301. A slider 303 is fixedly connected to the bottom end of the outer wall of the rack 302. A drive assembly 304 is installed on the outer bottom of the top plate 301, including a servo motor 3041. The servo motor 3041 is installed on the outer bottom of the top plate 301. A gear 3043 is installed on the front side of the outer wall of the rack 302, and the rear side of the outer wall of the gear 3043 meshes with the front side of the outer wall of the rack 302. A limit frame 3045 is installed on the outer wall of the rack 302. The outer wall of 3045 is fixedly connected to the outer wall of housing 1. The interior of the limiting frame 3045 is slidably connected to the outer wall of the rack 302. The middle part of the gear 3043 is fixedly connected to the limiting shaft 3042. The adjacent ends of the outer wall of the limiting shaft 3042 are rotatably connected to the outer wall of housing 1. The output end of the servo motor 3041 is fixedly connected to the outer wall of the limiting shaft 3042. The bottom of the outer wall of the servo motor 3041 is fixedly connected to the bracket 3044. The bottom of the outer wall of the bracket 3044 is fixedly connected to the outer wall of housing 1. The upper middle part of the outer wall of housing 1 is provided with sliding grooves 5 on both the left and right sides. The outer wall of the slider 303 is slidably connected to the interior of the sliding groove 5.

[0037] Specifically, racks 302 are symmetrically installed on both sides of the top plate 301, and gears 3043 are arranged on the front side of the racks 302. The two form a transmission structure through precise meshing. When the gears 3043 rotate, power is transmitted through the inter-tooth meshing, driving the racks 302 to move the top plate 301 vertically. A limit frame 3045 is fixedly installed on the outside of the racks 302. The limit frame 3045 is firmly connected to the outside of the housing 1. Its internal space is designed specifically for the movement of the racks 302. The movement trajectory of the racks 302 is constrained by physical limit, ensuring that its vertical lifting process is stable and without deviation. A limit shaft 3042 is welded in the middle of the gears 3043. One end of the limit shaft 3042 can rotate flexibly in the reserved structure on the outer wall of the housing 1. The output end of the servo motor 3041 is precisely connected to one end of the limit shaft 3042 to form a power transmission interface. A bracket 3044 is installed at the bottom of the servo motor 3041. The bottom of the bracket 3044 is welded and fixed to the outside of the housing 1 to ensure its stable operation. Qualitatively, when the servo motor 3041 is started, its output power is transmitted to the gear 3043 via the limit shaft 3042, driving the gear 3043 to rotate and causing the rack 302 to move synchronously. The slider 303 welded to the bottom of the rack 302 and the sliding groove 5 opened on the outer wall of the housing 1 form a sliding fit structure. The sliding groove 5 not only further restricts the movement direction of the rack 302 and prevents it from lateral displacement, but also provides stable support for the top plate 301 when it descends to the lowest position with the rack 302. When the equipment is running, the servo motor 3041 drives the top plate 301 to rise, opening the channel to allow outside air to enter the housing 1. The air is processed by the internally installed air filter and flow rate detection device 6, and after meeting the usage standards, it is discharged from the air outlet 7. When the equipment is stopped, the top plate 301 descends to cover the top opening of the housing 1, effectively blocking dust from entering and avoiding the problem of dust settling and accumulating, which leads to a decrease in the sensitivity of the equipment's detection elements and deviation of the detection value from the actual wind speed, thus ensuring the long-term stable operation of the equipment.

[0038] Reference Figure 2 , Figure 3 and Figure 5 An air filtration and flow rate detection device 6 is installed inside the housing 1 to filter the air entering the equipment and monitor the flow rate when it is discharged. An air outlet 7 is installed at the bottom of the air filtration and flow rate detection device 6. The outer wall of the air outlet 7 is fixedly connected to the bottom of the housing 1, so that the filtered air can be discharged into the purification chamber. Handles 4 are fixedly connected to the four corners of the outer wall of the housing 1 to facilitate moving the equipment to the required position.

[0039] Specifically, an air filter and flow rate detection device 6 is precisely installed in the core position inside the housing 1. This device systematically filters the air entering the equipment, effectively intercepts impurities in the air, and monitors the flow rate of the exhaust air in real time to ensure that the airflow meets the usage requirements. An air outlet 7 is set at the bottom of the air filter and flow rate detection device 6. The outer wall of the air outlet 7 is tightly connected to the bottom of the housing 1 by a fixed connection to form a stable exhaust channel. The purified air can be smoothly discharged into the clean room through the air outlet 7 to maintain the cleanliness of the indoor air environment. At the four corners of the outer wall of the housing 1, handles 4 are firmly fixedly connected, allowing the equipment to be easily moved to different working positions, significantly improving the flexibility and convenience of the equipment.

[0040] Working principle: Rotating the triangular knob 206 causes the cleaning cotton 205 to clean the equipment's heat dissipation plate. Since pulleys 203 are installed on the left ends of both threaded rods 201, and a connecting belt 204 links the pulleys 203. Because the triangular knob 206 is welded to the threaded rods 201, rotating the knob 206 causes the two threaded rods 201 to rotate synchronously. Threaded blocks 202 installed on the outside of the threaded rods 201 are internally connected to the two threaded rods 201 via threads. Due to the limitation of 1, when the threaded rod 201 rotates, the threaded block 202 can only move left and right along the axial direction of the threaded rod 201, thereby driving the cleaning cotton 205 installed on its rear side to move. The front end of the fixing bracket 208 fixed inside the housing 1 allows both ends of the threaded rod 201 to pass through, providing stable support for it. This solves the problem that when using a cooling fan to clean the heat sink, more dust will accumulate on the surface of the cooling fan blades after a long period of use, causing the cooling fan to generate more heat during operation, which seriously affects the heat dissipation of the equipment and shortens the service life of the equipment.

[0041] By activating the servo motor 3041, the top plate 301 can be raised and lowered as needed to prevent dust from settling. Since racks 302 are installed on both sides of the top plate 301, and gears 3043 are installed on their front sides, the tight meshing of the gears 3043 and racks 302 allows the racks 302 to rotate, driving the top plate 301 to move vertically. A limiting bracket 3045, installed on the outer side of the racks 302, is fixed to the outer side of the housing 1. Its internal space allows the racks 302 to move mechanically, thus limiting their vertical movement. A limiting shaft 3042 is welded to the middle of the gears 3043, and its adjacent end can rotate on the outer wall of the housing 1. The output end of the servo motor 3041 is connected to one end of the limiting shaft 3042. A bracket 3044 is installed at the bottom of the servo motor 3041, and its bottom is welded to the outer side of the housing 1, providing stable support for the servo motor 3041. Therefore, when the servo motor is activated... When the motor 3041 is in operation, its power is transmitted to the gear 3043 via the limiting shaft 3042, causing it to rotate. This drives the rack 302 to move vertically. The slider 303 welded to the bottom of the rack 302 can slide in the groove 5 opened on the outer wall of the housing 1, further restricting the movement of the rack 302. When the rack 302 drives the top plate 301 to the lowest position, it can provide sufficient support, allowing the top plate 301 to rise during equipment operation. This ensures that enough air enters the housing 1, is filtered by the internal air filter and flow rate detection device 6, and is discharged through the air outlet 7 after meeting the usage standards. When the equipment stops operating, the top plate 301 is lowered to the outer top of the housing 1 to prevent dust from entering the equipment and settling. This solves the problem that when the equipment is stationary, dust can easily enter the equipment through the air inlet and settle. After long-term accumulation, the sensitivity of the equipment's detection elements decreases, causing the detection value to deviate from the actual wind speed, which affects actual use.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A medical clean room air supply unit having a flow rate detecting mechanism, comprising a housing (1), characterized in that: A cleaning mechanism (2) is installed at the rear end of the inner shell (1). The cleaning mechanism (2) is used to clean the dust on the surface of the heat sink. A lifting mechanism (3) is installed at the top of the outer wall of the shell (1). The lifting mechanism (3) is used to block the dust. The cleaning mechanism (2) includes multiple threaded rods (201), which are installed inside the rear end of the housing (1). Threaded blocks (202) are installed on the outer wall of each threaded rod (201). The inner walls of the upper and lower ends of the threaded blocks (202) are threadedly connected to the outer wall of the threaded rods (201). A connecting post (207) is fixedly connected to the rear side of the outer wall of the threaded blocks (202). A cleaning cotton (205) is fixedly connected to the rear end of the outer wall of the connecting post (207). A triangular knob (206) is installed on the left side of the upper middle outer wall of the housing (1). The right side of the outer wall of the triangular knob (206) is fixedly connected to the left side of the outer wall of the threaded rods (201). The outer wall of the housing (1) is rotatably connected to the outer wall of the threaded rods (201).

2. The medical clean room air supply unit having a flow rate detecting mechanism according to claim 1, characterized by: The lifting mechanism (3) includes a top plate (301), which is installed on the top of the outer wall of the housing (1). The top plate (301) is fixedly connected to the left and right ends of the bottom of the outer wall of the top plate (301), and a slider (303) is fixedly connected to the bottom of the outer wall of the rack (302). A drive assembly (304) is installed on the bottom of the outer side of the top plate (301).

3. The medical clean room air supply unit having a flow rate detecting mechanism according to claim 2, characterized in that: The drive assembly (304) includes a servo motor (3041), which is mounted on the outer bottom of the top plate (301). A gear (3043) is mounted on the front side of the outer wall of the rack (302). The rear side of the outer wall of the gear (3043) meshes with the front side of the outer wall of the rack (302). A limit frame (3045) is mounted on the outer wall of the rack (302). The outer wall of the limit frame (3045) is fixedly connected to the outer wall of the housing (1). The interior of the limit frame (3045) is slidably connected to the outer wall of the rack (302). A limit shaft (3042) is fixedly connected to the middle of the gear (3043). One adjacent end of the outer wall of the limit shaft (3042) is rotatably connected to the outer wall of the housing (1). The output end of the servo motor (3041) is fixedly connected to the outer wall of the limit shaft (3042).

4. The medical clean room air supply unit having a flow rate detecting mechanism according to claim 1, characterized by: The inner wall of the housing (1) is fixedly connected to the left and right ends of the rear side of the housing (1), and the inner wall of the front end of the fixed frame (208) is rotatably connected to the outer wall of the threaded rod (201).

5. The medical clean room air supply unit having a flow rate detecting mechanism according to claim 1, characterized in that: Each of the multiple threaded rods (201) has a pulley (203) fixedly connected to the left end of its outer wall. A connecting belt (204) is installed on the outer wall of each of the multiple pulleys (203). The multiple pulleys (203) are connected by a connecting column (207).

6. The medical clean room air supply unit having a flow rate detecting mechanism according to claim 3, characterized in that: The bottom of the outer wall of the servo motor (3041) is fixedly connected to a bracket (3044), and the bottom of the outer wall of the bracket (3044) is fixedly connected to the outer wall of the housing (1).

7. The medical clean room air supply unit having a flow rate detecting mechanism according to claim 2, characterized by: The outer wall of the housing (1) is provided with sliding grooves (5) on both the upper left and right sides, and the outer wall of the slider (303) is slidably connected to the inside of the sliding groove (5).

8. The medical clean room air supply unit having a flow rate detecting mechanism according to claim 1, characterized by: An air filter and flow rate detection device (6) is installed inside the housing (1). An air outlet (7) is installed at the bottom of the air filter and flow rate detection device (6). The outer wall of the air outlet (7) is fixedly connected to the bottom of the housing (1). A handle (4) is fixedly connected to each of the four corners of the outer wall of the housing (1).

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