Assembly type ward ventilation device suitable for epidemic prevention and hospital infection prevention and control

By designing ventilation structures, wind control mechanisms and detection and control systems in prefabricated wards, the problems of low air circulation efficiency and improper flow rate were solved, stable air flow rate control was achieved, and the prevention and control effect was improved.

CN223345582UActive Publication Date: 2025-09-16SHENZHEN UNIV
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Patent Information

Application Number
CN202422421909.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-09-16
Estimated Expiration
2034-09-30

AI Technical Summary

Technical Problem

The ventilation method of existing prefabricated wards has low air circulation efficiency, making it difficult to effectively prevent and control hospital infections, and improper air flow rate may aggravate the patient's condition.

Method used

An assembled ward ventilation device consisting of a ventilation structure, a wind control mechanism, a detection mechanism and a control mechanism was designed. The device detects the air flow rate and automatically adjusts the fan blade speed to maintain the air flow rate within a stable range, and optimizes the air flow by using a high-efficiency filter and an air-gathering channel.

Benefits of technology

It achieves stable control of the air flow rate in the ward, effectively prevents and controls nosocomial infections, prevents the impact of excessive or insufficient air flow on the condition, and improves ventilation effects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of assembly type houses, and provides an assembly type ward ventilation device suitable for epidemic prevention and hospital infection prevention and control, which is characterized in that a wall body is provided with a door and a window; the ventilation structure is arranged on the wall body and is used for air circulation in the ward; the air control mechanism is connected with the ventilation structure and used for increasing or decreasing the air velocity in the ventilation structure; the detection mechanism is arranged in the ventilation structure and is used for detecting the air velocity; the control mechanism is used for collecting data detected by the detection mechanism and controlling starting of the air control mechanism according to the data; air flows into the ventilation pipe through the air gathering channel, then the detection mechanism is used for detecting the air speed, and finally the control mechanism controls the rotation speed of the fan blades according to the air flow speed, so that the air flow speed in the ward is ensured to be within a stable range while the air flow speed in the ward is effectively ensured; and the influence of high and low flow rates on illness conditions is prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated houses, and in particular to a prefabricated ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control. Background Art

[0002] As medical institutions, general hospitals play an important role in people's daily lives. However, respiratory infections pose an increasingly severe challenge to medical institutions. In order to better prevent and control them, more prefabricated wards are set up to reduce infection. Relevant studies have also shown that poorly ventilated spaces are more prone to respiratory infections. Ventilation design is an important strategy for controlling nosocomial infections.

[0003] The existing ventilation method usually has ventilation holes on one side of the ward, and some of the ventilation holes are equipped with exhaust fans to ensure air circulation and discharge of foul air in the ward; although the foul air in the ward can be discharged to a certain extent, the air circulation efficiency in the room is not high, and it is difficult to play an effective role in epidemic prevention and control.

[0004] In the process of ventilation, epidemic control and prevention, the air flow rate is also crucial. A smaller flow rate cannot effectively remove foul air and pathogens, while a larger air flow rate will cause the patient to be exposed to the wind, which will further aggravate the patient's condition. Summary of the Invention

[0005] In view of the ventilation deficiencies in the prior art, the purpose of the present invention is to provide an assembled ward ventilation device that is convenient for ventilation and suitable for epidemic prevention and control and hospital infection prevention and control.

[0006] In order to solve the above problems, the present invention provides the following technical solutions:

[0007] An assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control, comprising: a wall with doors and windows;

[0008] A ventilation structure, provided on the wall, for circulating air in the ward;

[0009] an air control mechanism connected to the ventilation structure and configured to increase or decrease the air flow rate within the ventilation structure;

[0010] A detection mechanism, provided in the ventilation structure, for detecting the magnitude of the air flow rate;

[0011] A control mechanism, configured to collect data detected by the detection mechanism and control the activation of the wind control mechanism based on the data;

[0012] When the air flow rate in the ward is low, the control mechanism controls the wind control mechanism to increase the air flow rate in the ventilation structure; when the air flow rate in the ward is high, the control mechanism controls the wind control mechanism to reduce the air flow rate in the ventilation structure.

[0013] In some embodiments, the ventilation structure includes a first ventilation component and a second ventilation component;

[0014] The first ventilation component is located on one side of the wall, and the second ventilation component is located on the other side of the wall, so that the air in the ward flows from the first ventilation component to the second ventilation component or the second ventilation component flows to the first ventilation component.

[0015] In some embodiments, the first ventilation assembly and the second ventilation assembly each include a high efficiency filter, a plurality of air collecting members, and a ventilation pipe mounted on the wall;

[0016] The high efficiency filter is installed in the ventilation pipe;

[0017] Each of the air gathering members is installed on the ventilation pipe outside the wall, and the air gathering members are evenly distributed horizontally;

[0018] When air flows into and out of the ward through the ventilation duct, the air is filtered by the high efficiency filter.

[0019] In some embodiments, a plurality of wind-gathering channels are provided on the outside of the wind-gathering member, and the angles between the plurality of wind-gathering channels and the wall are 25-35 degrees, 55-65 degrees, and 85-95 degrees respectively;

[0020] When air flows toward the air gathering member from different angles, the air can enter the ventilation pipe through the air gathering channel.

[0021] In some embodiments, the wind control mechanism includes at least two, one of which is provided in the first ventilation component and the other is provided in the second ventilation component;

[0022] The wind control mechanism includes fan blades and a forward and reverse motor that drives the fan blades to rotate;

[0023] When the amount of air entering through the ventilation duct per unit time is insufficient, the forward and reverse motors located on the air inlet side start, driving the corresponding fan blades to rotate forward, thereby accelerating the air flow rate in the ward; when the amount of air entering through the ventilation duct per unit time is too much, the forward and reverse motors located on the air inlet side start, driving the corresponding fan blades to rotate reversely, thereby slowing down the entry of air.

[0024] In some embodiments, the detection mechanism includes a wind measuring plate and a pendulum;

[0025] The wind measuring plate is fixedly mounted on the swing rod, the wind measuring plate and the swing rod are arranged on the ventilation pipe, and the other end of the swing rod is hinged in the ventilation pipe;

[0026] When the incoming air is insufficient, the swing arm swings into the ward with a small amplitude; when the incoming air is excessive, the swing arm swings into the ward with a large amplitude.

[0027] In some embodiments, the control mechanism includes a control switch and an angle sensor;

[0028] The control switch can control the start and forward and reverse rotation of the forward and reverse motor as the swing rod swings;

[0029] The angle sensor can control the rotation speed of the forward and reverse motor according to the swing angle of the swing rod.

[0030] In some embodiments, the forward and reverse motor is a three-phase asynchronous motor.

[0031] In some embodiments, there are two doors and two windows, and the two doors and two windows are respectively provided on both sides of the wall;

[0032] The ventilation structure is arranged on the wall where the door and the window are located.

[0033] In some embodiments, the wall includes wall panels and a frame;

[0034] The wall panel is fixedly mounted on the frame;

[0035] The ventilation pipe is arranged on the wall panel.

[0036] The beneficial effects of the utility model are as follows: air is allowed to flow into the ventilation pipe through the wind gathering channel, the wind speed is then detected by the detection mechanism, and finally the speed of the fan blade rotation is controlled according to the size of the air flow rate by the control mechanism, while effectively ensuring the air flow rate in the ward, the air flow rate in the ward is ensured to be within a stable range, preventing the influence of high or low flow rate on the condition of the patient.

[0037] Through the multi-angle design of the wind gathering channel, wind from different angles can be gathered, so that the air can be effectively gathered into the ventilation duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a three-dimensional diagram of the prefabricated ward of the utility model;

[0039] Figure 2 This is a three-dimensional schematic diagram of the prefabricated ward of the utility model;

[0040] Figure 3 This is a three-dimensional diagram of the assembled ward ventilation device of the utility model;

[0041] Figure 4 This is a three-dimensional rear view of the assembled ward ventilation device of the utility model;

[0042] Figure 5 This is a three-dimensional schematic diagram of the assembled ward ventilation device of the utility model;

[0043] Figure 6 This is a three-dimensional diagram of the wind gathering piece of the utility model.

[0044] Reference numerals:

[0045] 100, ward; 110, wall; 120, ventilation structure; 130, wind control mechanism; 140, detection mechanism; 150, control mechanism;

[0046] 111. Door; 112. Window; 113. Wall panel; 114. Frame;

[0047] 121, first ventilation assembly; 122, second ventilation assembly; 12a, high-efficiency filter; 12b, air collecting element; 12c, ventilation pipe; b1, air collecting channel;

[0048] 131. Fan blades; 132. Forward and reverse motor;

[0049] 141. Wind measuring plate; 142. Pendulum;

[0050] 151. Control switch; 152. Angle sensor. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0053] For the convenience of describing the first, second, and third directions in the embodiments of this application, the first direction is the left-right direction in the drawings, the second direction is the front-back direction in the drawings, and the third direction is the up-down direction in the drawings. The x-axis arrow direction is referred to as the "right" direction, the y-axis arrow direction is referred to as the "up" direction, and the z-axis arrow direction is referred to as the "back" direction in the following text. However, in the actual application of this application, this is not limiting.

[0054] like Figure 2 As shown, this embodiment provides an assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control, which includes a wall 110 with a door 111 and a window 112. A ventilation structure 120 is provided on the wall 110 to circulate air within the ward 100; this allows the timely discharge of stale air and pathogens contained in the air within the ward 100, preventing the patient's condition from further deteriorating and preventing the pathogens from further infecting others. At the same time, fresh air outside the ward 100 is also introduced to accelerate the patient's recovery.

[0055] The air control mechanism 130 is connected to the ventilation structure 120 and is used to increase or decrease the air flow rate within the ventilation structure 120. By increasing or decreasing the air flow rate within the ventilation structure 120, the air flow rate within the ward 100 is kept within a stable range, which can effectively prevent the disease and prevent the patient's condition from worsening.

[0056] Detection mechanism 140, located within ventilation structure 120, is used to detect air flow rate. Control mechanism 150 is used to collect data detected by detection mechanism 140 and, based on this data, activate air control mechanism 130. When the air flow rate within ward 100 is low, control mechanism 150 controls air control mechanism 130 to increase the air flow rate within ventilation structure 120. When the air flow rate within ward 100 is high, control mechanism 150 controls air control mechanism 130 to decrease the air flow rate within ventilation structure 120.

[0057] In this embodiment, the ventilation structure 120 includes a first ventilation assembly 121 and a second ventilation assembly 122. The first ventilation assembly 121 is located on one side of the wall 110, and the second ventilation assembly 122 is located on the other side of the wall 110. This allows air in the ward 100 to flow from the first ventilation assembly 121 to the second ventilation assembly 122, or vice versa. The ventilation assemblies on both sides of the ward 100 ensure smooth air circulation throughout the ward 100, preventing poor air circulation and control issues.

[0058] In this embodiment, the first ventilation assembly 121 and the second ventilation assembly 122 each include a high-efficiency filter 12a, a plurality of air concentrators 12b, and a ventilation duct 12c mounted on the wall 110. The high-efficiency filter 12a is mounted within the ventilation duct 12c; each air concentrator 12b is mounted on the ventilation duct 12c outside the wall 110, and the air concentrators 12b are evenly distributed horizontally; when air flows into and out of the ward 100 through the ventilation duct 12c, the air is filtered by the high-efficiency filter 12a. The high-efficiency filter 12a installed within the ventilation duct 12c allows the air to be filtered by the high-efficiency filter 12a whenever it enters or exits the ward 100, preventing the discharge of pathogens and the entry of contaminated air.

[0059] like Figure 5-6 As shown, in this embodiment, multiple air concentrating channels b1 are provided on the outside of air concentrating member 12b. These channels b1 form angles of 25-35 degrees, 55-65 degrees, and 85-95 degrees with respect to wall 110, respectively. When air flows toward air concentrating member 12b from different angles, it can enter ventilation duct 12c through each of these channels b1. In other words, as long as air can enter the ventilation duct through any of the channels b1 on air concentrating member 12b, it can maintain air flow within ward 100.

[0060] In this embodiment, the cross section of the air collecting channel b1 is funnel-shaped, so that the air outside the ward 100 can flow into the ventilation pipe 12c more effectively.

[0061] In this embodiment, the air control mechanism 130 includes at least two units, one of which is located in the first ventilation assembly 121 and the other in the second ventilation assembly 122. The air control mechanism 130 includes fan blades 131 and a forward / reverse motor 132 that drives the fan blades. The forward / reverse motor 132 is a three-phase asynchronous motor. When the amount of air entering through the ventilation duct 12c per unit time is insufficient, the forward / reverse motor 132 on the air inlet side is activated, driving the corresponding fan blade 131 to rotate forward, thereby increasing the air flow rate within the ward 100. When the amount of air entering through the ventilation duct 12c per unit time is excessive, the forward / reverse motor 132 on the air inlet side is activated, driving the corresponding fan blade 131 to rotate reversely, thereby slowing down the air flow rate. In other words, the air flow rate is controlled to ensure a stable and consistent flow rate within the ward 100, ensuring good air circulation within the ward 100 while not exacerbating the patient's condition.

[0062] like Figure 5As shown, in this embodiment, detection mechanism 140 includes a wind plate 141 and a swing arm 142. Wind plate 141 is made of an EPS board. It is fixedly mounted to swing arm 142 and positioned within ventilation duct 12c. The other end of swing arm 142 is hinged within ventilation duct 12c. When insufficient air is entering, swing arm 142 swings slightly into ward 100. When excessive air is entering, swing arm 142 swings more sharply into ward 100. EPS boards are lightweight, inexpensive, have low water absorption, and are moisture-resistant. They can be affected by wind, ensuring more stable detection.

[0063] In this embodiment, the control mechanism 150 includes a control switch 151 and an angle sensor 152. The control switch 151 controls the activation and rotation of the forward and reverse motor 132 in response to the swing of the swing arm 142, and the angle sensor 152 controls the rotation speed of the forward and reverse motor 132 according to the swing angle of the swing arm 142. The angle sensor 152 detects the angle change of the swing arm 142 and, based on the input of the detection control voltage, controls the speed of the forward and reverse motor 132, thereby controlling the speed of the fan blades 131 and ensuring stable air flow within the ward 100.

[0064] like Figure 1 As shown, this embodiment provides a prefabricated ward 100, which has two doors 111 and two windows 112, each of which is located on either side of a wall 110; a ventilation structure 120 is provided on the wall 110 where the doors 111 and the windows 112 are located. The doors and windows on both sides allow doctors to observe the situation inside the ward 100 through the windows, and also facilitate the entry and exit of patients and doctors.

[0065] like Figure 2 As shown, this embodiment provides a prefabricated ward 100, wherein the wall 110 includes a wall panel 113 and a frame 114; the wall panel 113 is fixedly mounted on the frame 114; and the ventilation pipe 12c is provided on the wall panel 113. The assembly of the frame 114 and the wall panel 113 makes installation simple and convenient.

[0066] To sum up, the utility model provides an assembled ward ventilation device suitable for epidemic and hospital infection prevention and control. Air is allowed to flow into the ventilation pipe through the wind gathering channel, and the wind speed is detected by the detection mechanism. Finally, the speed of fan rotation is controlled by the control mechanism according to the size of the air flow rate. While effectively ensuring the air flow rate in the ward, the air flow rate in the ward is ensured to be within a stable range, preventing the influence of high and low flow rates on the condition of the disease.

[0067] Through the multi-angle design of the wind gathering channel, wind from different angles can be gathered, so that the air can be effectively gathered into the ventilation duct.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control, characterized in that: include: Walls with doors and windows; A ventilation structure, provided on the wall, for circulating air in the ward; an air control mechanism connected to the ventilation structure and configured to increase or decrease the air flow rate within the ventilation structure; A detection mechanism, provided in the ventilation structure, for detecting the magnitude of the air flow rate; A control mechanism, configured to collect data detected by the detection mechanism and control the activation of the wind control mechanism based on the data; When the air flow rate in the ward is low, the control mechanism controls the wind control mechanism to increase the air flow rate in the ventilation structure; when the air flow rate in the ward is high, the control mechanism controls the wind control mechanism to reduce the air flow rate in the ventilation structure.

2. The assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control according to claim 1 is characterized by: The ventilation structure includes a first ventilation component and a second ventilation component; The first ventilation component is located on one side of the wall, and the second ventilation component is located on the other side of the wall, so that the air in the ward flows from the first ventilation component to the second ventilation component or the second ventilation component flows to the first ventilation component.

3. The assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control according to claim 2 is characterized by: The first ventilation assembly and the second ventilation assembly each include a high efficiency filter, a plurality of air collecting members and a ventilation pipe installed on the wall; The high efficiency filter is installed in the ventilation pipe; Each of the air gathering members is installed on the ventilation pipe outside the wall, and the air gathering members are evenly distributed horizontally; When air flows into and out of the ward through the ventilation duct, the air is filtered by the high efficiency filter.

4. The assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control according to claim 3 is characterized by: A plurality of wind gathering channels are provided on the outside of the wind gathering member, and the angles between the plurality of wind gathering channels and the wall are 25-35 degrees, 55-65 degrees and 85-95 degrees respectively; When air flows toward the air gathering member from different angles, the air can enter the ventilation pipe through the air gathering channel.

5. The assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control according to claim 3 is characterized by: The wind control mechanism includes at least two, one of which is provided in the first ventilation component and the other is provided in the second ventilation component; The wind control mechanism includes fan blades and a forward and reverse motor that drives the fan blades to rotate; When the amount of air entering through the ventilation duct per unit time is insufficient, the forward and reverse motors located on the air inlet side start, driving the corresponding fan blades to rotate forward, thereby accelerating the air flow rate in the ward; when the amount of air entering through the ventilation duct per unit time is too much, the forward and reverse motors located on the air inlet side start, driving the corresponding fan blades to rotate reversely, thereby slowing down the entry of air.

6. The assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control according to claim 5 is characterized by: The detection mechanism includes a wind measuring plate and a pendulum rod; The wind measuring plate is fixedly mounted on the swing rod, the wind measuring plate and the swing rod are arranged on the ventilation pipe, and the other end of the swing rod is hinged in the ventilation pipe; When the incoming air is insufficient, the swing arm swings into the ward with a small amplitude; when the incoming air is excessive, the swing arm swings into the ward with a large amplitude.

7. The assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control according to claim 6 is characterized by: The control mechanism includes a control switch and an angle sensor; The control switch can control the start and forward and reverse rotation of the forward and reverse motor as the swing rod swings; The angle sensor can control the rotation speed of the forward and reverse motor according to the swing angle of the swing rod.

8. The assembled ward ventilation device suitable for epidemic prevention and control and hospital infection prevention and control according to claim 7 is characterized by: The forward and reverse motor is a three-phase asynchronous motor.

9. A prefabricated ward, characterized by: Any one of items 1 to 8 of the prefabricated ward ventilation device is applicable to epidemic prevention and control and hospital infection prevention and control, wherein the doors and windows are both two, and the two doors and windows are respectively provided on both sides of the wall; The ventilation structure is arranged on the wall where the door and the window are located.

10. The prefabricated ward according to claim 9, characterized in that: The wall includes wall panels and a frame; The wall panel is fixedly mounted on the frame; The ventilation pipe is arranged on the wall panel.