Wall Construction Structure for School Classrooms

Abstract

The present invention relates to a wall construction structure for a school classroom, and more specifically, to a wall structure capable of improving noise blocking performance and thermal insulation performance between classrooms, improving constructability and maintainability, and ensuring fire safety. The wall construction structure of the present invention includes a wall (1100) with reinforcing bars (1110) embedded inside, an insulation section (1200) disposed on both sides of the wall, a sound-absorbing section (1300) disposed outside the insulation section, and a dry wall section (1400) disposed outside the sound-absorbing section. The insulation section (1200) includes a vacuum forming section (1220), a vacuum sensor (1230), first and second temperature sensors (1240, 1250), and a control section (500) to control the vacuum level within a grid-shaped unit space (1211), thereby providing excellent thermal insulation performance. The sound-absorbing section (1300) prevents noise leakage and maximizes sound insulation performance by placing a high-density auxiliary sound-absorbing material (1320) around the first through hole (1310). In addition, constructability is improved and durability is ensured through a fastening structure in which a metal tube (1130) and a rolling member (1511b) are applied to the insertion hole (1120), and fire safety is further enhanced by applying a flame-retardant additive to the auxiliary sound-absorbing material.

Description

Technology Field

[0001] The present invention relates to a wall construction structure for a school classroom, wherein a multi-layered insulation section, a sound-absorbing section, and a dry wall section are arranged around reinforcing bars embedded inside the wall, a vacuum insulation control system is applied to the insulation section, a high-density auxiliary sound-absorbing material is formed around a first through-hole, and a fastening structure using a metal pipe and a rolling member is included, thereby providing a wall construction structure for a school classroom that is advantageous for preventing noise leakage between classrooms and maximizing energy efficiency. Background Technology

[0003] Generally, the wall structure of a building consists of a wall section constructed by the cast-in-place method, insulation installed to reduce heat loss, and finishing materials that form the final exterior. This cast-in-place wall construction method is widely applied in various buildings, including school construction, due to the advantage of ensuring relatively high structural strength. For example, it is a method in which formwork is installed facing each other to match the designed width, concrete is poured between them, and the wall is completed by removing the formwork after curing.

[0004] However, this on-site cast-in-place wall construction method has several problems, such as the following.

[0005] First, the process of installing and removing formwork is complex and cumbersome. Constructing walls and slabs requires installing numerous forms and supports on-site, which demands a significant workforce and working time. Second, since formwork must be maintained until the concrete is sufficiently cured, there is a construction gap between the completion of walls and the commencement of work on the upper floors. Such process delays are ultimately one of the primary causes of prolonged construction periods. Third, there is a high risk of worker safety accidents during the formwork removal process, and the cost of disposing of waste materials such as wood, plywood, and steel generated after dismantling is substantial. In particular, damaged wood waste resulting from concrete pouring cannot be recycled, leading to environmental pollution issues.

[0006] Meanwhile, applying a cast-in-place wall structure as is to the walls of a school classroom creates additional problems. For example, as shown in Fig. 2, blackboards must be installed based on the wall sections of the school classroom walls. However, the process of installing blackboards after completing the concrete walls using the cast-in-place method and then undergoing separate plastering and painting work is very long and complex. In particular, since it is difficult to secure skilled labor at construction sites these days, such complex construction processes lead to the problem of increased construction costs.

[0007] To address these issues, drywall construction methods have been proposed in the past. Conventional technology has presented a drywall structure combining a pair of spaced-apart lower drywalls, a pair of upper drywalls positioned above them, and sound-absorbing and thermal insulation materials installed between them. Additionally, there are cases where construction structures applicable to walls between school classrooms have been proposed, including a blackboard frame, a fixed main blackboard, and a sliding auxiliary blackboard. Such conventional technology has the advantage of partially resolving the issues of construction delays and formwork removal that occur in cast-in-place structures.

[0008] However, these conventional technologies also failed to completely solve the following problems.

[0009] First, the construction process of conventional drywall structures remains complex. Since the lower drywall, upper drywall, insulation, sound-absorbing material, whiteboard frame, and sliding whiteboard must each be installed as individual components, precise horizontal and vertical alignment is required during on-site assembly, and there is a high possibility of quality variations due to construction errors.

[0010] Second, in conventional structures, sound-absorbing and thermal insulation materials are simply arranged in parallel, which prevents sufficient sound insulation and thermal insulation performance. In particular, since the sound-absorbing and thermal insulation materials are disconnected around blackboards, bulletin boards, and fastening points installed on the walls between classrooms, sound leakage paths occur, and there is a problem of increased heat loss through the walls.

[0011] Third, conventional technology lacks fire safety. Generally, sound-absorbing and thermal insulation materials used in conventional technology have low flame-retardant performance or insufficient flame-retardant treatment; consequently, in the event of a fire, the combustion speed is rapid and the amount of smoke generated is high, so safety cannot be sufficiently ensured in school classroom environments.

[0012] Fourth, the fastening structure also has limitations. Conventional technology often uses simple screw fastening methods or fixed bracket structures, which fail to integrate with the wall's rebar structure and lead to loosening and deformation of the fastening parts during long-term use. Furthermore, maintenance is difficult, and partial replacement is impossible, resulting in the inefficiency of having to dismantle the entire wall.

[0013] Therefore, to simultaneously satisfy the sound insulation, thermal insulation, fire safety, constructability, and maintainability required for school classroom wall construction structures, a new wall construction structure capable of improving upon conventional technology is necessary. In particular, innovative wall construction technology is required that can minimize noise interference between classrooms, maximize thermal insulation performance, ensure fire safety, and improve constructability. Prior art literature

[0014] Republic of Korea Registered Patent No. 10-0694891 (Registration Date: March 7, 2007) The problem to be solved

[0015] The present invention has been devised to solve the aforementioned problems, and the objectives of the present invention are as follows.

[0016] The present invention relates to a wall construction structure between school classrooms and aims to solve problems such as reduced sound insulation performance, insufficient thermal insulation efficiency, inadequate fire safety, and prolonged construction time that occur in conventional classroom wall construction methods.

[0017] Specifically, the present invention arranges an insulation section, a sound-absorbing section, and a dry wall section in a multi-layered structure centered on reinforcing bars embedded inside the wall, introduces a vacuum insulation control system that forms a vacuum in a grid-shaped unit space in the insulation section, applies a high-density auxiliary sound-absorbing material around a first through-hole in the sound-absorbing section, and adopts a fastening structure using a metal pipe and a rolling member in the fastening section, thereby improving noise blocking performance between classrooms, maximizing insulation efficiency, ensuring fire safety, and shortening the construction process.

[0018] Furthermore, the present invention aims to effectively prevent noise leakage that may occur around the first through-hole by applying a high-density auxiliary sound-absorbing material, and to simultaneously satisfy lightness and sound absorption performance by designing the general area with a low-density sound-absorbing material. In addition, the invention aims to minimize heat loss by managing the vacuum state of the insulation section in real time through a control unit, improve constructability through a fastening structure using metal pipes and rolling members, and enable easy maintenance of the fastening section.

[0019] The present invention aims to enable students and faculty to learn and live in a comfortable and safe environment by stably supporting an air quality-related main body on a classroom wall, rapidly detecting the accumulation of localized high concentrations of fine dust or pollutants occurring at specific locations within the classroom, and preemptively controlling ventilation before the air quality reaches a standard concentration.

[0020] The objects of the present invention are not limited to those mentioned above, and other unmentioned objects and advantages of the present invention may be understood from the following description and will be more clearly understood by the embodiments of the present invention. Furthermore, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof set forth in the claims. means of solving the problem

[0022] To achieve the above objectives, the present invention provides a wall construction structure for a school classroom.

[0023] The wall construction structure of the school classroom described above includes a school classroom wall with reinforcing bars embedded therein, a pair of insulation members disposed on both sides of the wall, a pair of sound-absorbing members disposed outside the pair of insulation members, and a pair of dry wall members disposed outside the pair of sound-absorbing members.

[0024] Each of the above pair of insulation members comprises: an insulation member body in which grid-shaped unit spaces are formed; a vacuum forming member that forms a vacuum in each of the unit spaces; vacuum sensors that measure the vacuum degree of each of the unit spaces; a first temperature sensor that measures a first temperature at one side of the insulation member body; a second temperature sensor that measures a second temperature at the other side of the insulation member body; and a control member that receives the vacuum degree measured by the vacuum sensors and controls the operation of the vacuum forming member so that the difference temperature between the measured first temperature and the second temperature is included in a preset reference temperature range, thereby controlling the vacuum formation in each of the unit spaces.

[0025] The outer surface of the above-mentioned insulating body forms a bonding surface with an uneven shape with the above-mentioned pair of sound-absorbing parts.

[0026] Here, at multiple locations of the aforementioned pair of drywall sections,

[0027] Metal plates are spaced apart and formed integrally,

[0028] Fastening parts are installed on each of the above metal plates,

[0029] Each of the above fastening parts is,

[0030] A cylinder having a protruding shaft according to the control of the above-mentioned control unit, and

[0031] It includes a connecting ring connected to the end of the shaft, and

[0032] The above cylinder is fixed to the metal plate, and

[0033] The above shaft is fixed by penetrating the metal plate, the sound-absorbing part, and the thermal insulation part, and hooking onto the reinforcing bar embedded inside the wall,

[0034] An insertion hole into which the shaft is inserted is formed in the above wall, and

[0035] The outer circumference of the above shaft is characterized by the installation of rolling members that roll along the inner circumference of the insertion hole.

[0036] And, the above insertion hole is formed by inserting a metal tube formed of metal, and,

[0037] Inside the above insertion hole,

[0038] It is formed by filling with elastic material,

[0039] The above sound-absorbing part is,

[0040] First through holes are formed through which the above-mentioned shaft passes,

[0041] The surrounding areas on both sides of the first through holes are integrally formed with an auxiliary sound-absorbing material,

[0042] The above auxiliary sound-absorbing material is,

[0043] It is characterized by being set to be greater than a certain level than the density of the sound-absorbing part in the area excluding the above auxiliary sound-absorbing material.

[0044] In addition, the above auxiliary sound-absorbing material is,

[0045] It is formed of a high-density material composed of 70-85% by weight of polyester fiber, 10-20% by weight of polyurethane foam, 3-8% by weight of flame retardant additive, and 2-5% by weight of binder,

[0046] The sound-absorbing portion in the area excluding the above auxiliary sound-absorbing material is,

[0047] It is characterized by being formed from a low-density material comprising 80-90% by weight of glass wool or low-density polyester fiber, 5-10% by weight of polyurethane foam, and 3-7% by weight of binder.

[0048] In particular, among the above pair of dry wall sections, a metal plate formed of metal is installed in the upper area of ​​the dry wall section within the classroom.

[0049] The above metal plate is provided with a plurality of rods, and the plurality of rods are connected to the reinforcing bar embedded inside the wall through welding.

[0050] Additionally, it includes a main body portion movably disposed on the metal plate; a moving portion provided on the metal plate and moving the housing main body along a rail formed on the metal plate; a sensor portion provided on the main body portion and measuring a dust concentration value at a certain position in the indoor space of the classroom at the location where the main body portion moves by the driving of the moving portion; a ventilation portion provided on the main body portion and sucking in indoor air at a certain position in the indoor space and discharging it to the outside, and supplying outside air to the indoor space; and a control portion that drives the ventilation portion and controls the driving of the moving portion so that the measured dust concentration value reaches a preset standard dust concentration value.

[0051] The above control unit controls the driving of the above moving unit to continuously move the above main body unit.

[0052] Here, the ventilation unit is,

[0053] It includes an intake port and an exhaust port formed in the main body,

[0054] A first flow path connected to the intake port and a second flow path connected to the discharge port are formed,

[0055] In the first Euro, an intake fan that draws in the outside air under the control of the control unit is installed, and in the second Euro, an exhaust fan that discharges the indoor air under the control of the control unit is installed.

[0056] The end of the first Euro is connected to a first duct having flexibility, and

[0057] The first duct is disposed in a first flow path formed inside the metal sheet, and the end of the first duct is exposed to the outside of the wall, and

[0058] The end of the second Euro mentioned above is connected to a second duct having flexibility, and

[0059] The second duct is disposed in a second flow path formed inside the metal plate, and the end of the second duct is exposed to the outside of the metal plate,

[0060] On the inner walls of each of the first and second moving channels,

[0061] Elastic rollers are installed to roll,

[0062] The elastic rollers are characterized by guiding the movement of the outer circumference of the first duct and the second duct.

[0063] Here, the air quality management system of the school classroom mentioned above is,

[0064] It further includes a calculation unit that predicts future trends in air quality deterioration based on the measurement values ​​of the sensor unit above, and

[0065] The above control unit is characterized by preemptively driving the ventilation unit according to the prediction result of the above calculation unit.

[0066] In addition, the above-mentioned operation unit,

[0067] The sensor unit above measures the carbon dioxide (CO₂) concentration value, and

[0068] By combining the dust concentration value measured by the sensor unit and the carbon dioxide (CO₂) concentration measurement value,

[0069] It is characterized by estimating the trend of air quality deterioration based on the number of occupants and activity levels within the classroom mentioned above.

[0070] In addition, the above-mentioned operation unit,

[0071] By analyzing the rate of change of the measured dust concentration value of the sensor unit,

[0072] It is characterized by pre-detecting the occurrence of air quality deterioration when the set threshold rate of change is exceeded.

[0073] In particular, the above-mentioned operation unit,

[0074] The dust concentration value measured by the sensor unit is learned using a machine learning or artificial intelligence model, and

[0075] It is characterized by predicting the timing and degree of air quality deterioration based on the dust concentration value of the sensor unit learned above.

[0076] In addition, the above control unit,

[0077] The driving intensity and driving time of the ventilation unit are variably controlled according to the prediction result of the above-mentioned operation unit, wherein the driving intensity is proportional to the rotational speed of the intake fan and the exhaust fan.

[0078] In addition, the above control unit,

[0079] Receive outdoor air quality information provided from an outdoor air quality measuring device or an external public database via a communication network, and

[0080] By mutually comparing and analyzing the above outdoor air quality information and the prediction results of the above calculation unit,

[0081] When the external air quality satisfies the preset allowable standard, the ventilation unit is operated, and

[0082] If the external air quality does not satisfy the above allowable standards, the ventilation unit is restricted from operating, or the rotational speeds of the intake fan and the exhaust fan are controlled to adjust the ventilation intensity and ventilation time.

[0083] In addition, the above moving part is,

[0084] A movable block installed in the main body and movably coupled to the rail, and

[0085] A linear motor that moves the moving block according to the control of the above-mentioned control unit is provided, and

[0086] Auxiliary measuring units are installed at multiple locations of the main body, and

[0087] Each of the above auxiliary measuring parts is,

[0088] It includes a cylinder having a retractable shaft and an auxiliary concentration sensor installed at the end of the shaft to measure a dust concentration value,

[0089] Each of the above auxiliary measuring units is disposed in a receiving space provided inside the main body, and

[0090] An auxiliary rail is formed on the floor of the above-mentioned accommodation space, and

[0091] The above cylinder is movably coupled to the above auxiliary rail according to the driving of an auxiliary linear motor, and

[0092] The above receiving space forms an opening exposed to the front of the main body, and

[0093] It is preferable that a door be installed in the above opening to open and close the opening according to the operation of a rotary motor driven by the control of the control unit.

[0094] In addition, the control unit receives a driving signal according to the driving of the sensor unit measuring the dust concentration value, and

[0095] If the above driving signal is not received for a set abnormal period of time,

[0096] The door is rotated using the above rotary motor to open the opening, and

[0097] Using the above auxiliary linear motor, move the cylinder to the vicinity of the opening, and

[0098] Using the above cylinder, the above shaft is protruded to form a set protrusion length, and

[0099] It is preferable to measure the auxiliary dust concentration value at the corresponding location through the auxiliary concentration sensor installed at the end of the protruding shaft, and to drive the ventilation unit to reach a preset standard dust concentration value by receiving the measured auxiliary dust concentration value.

[0100] In addition, an image acquisition device is installed at a specific position in front of the main body, which acquires an image of the ceiling of the classroom and transmits the acquired image to the control unit.

[0101] A protruding cylinder having a protruding shaft that extends and retracts according to the control of the control unit is installed in the main body.

[0102] A rotating member is installed at the end of the protruding shaft, and a connecting bar is installed on the rotating member. The rotating member is connected to a rotating machine, and the rotating machine rotates the connecting bar according to the control of the control unit.

[0103] A first cylinder having a first axis is installed at the end of the above connecting bar, and a suction device is installed at the end of the first axis, and the suction device is connected to a collection unit provided in the main body through a tube. A suction pump driven by the control of the control unit is installed on the tube. The first cylinder protrudes according to the control of the control unit.

[0104] The control unit processes the acquired image to search for a dust formation area. A reference dust area reference image is set in the control unit to determine the existence of the dust formation area.

[0105] When the dust formation area is searched, the control unit calculates location information of the dust formation area.

[0106] The above control unit controls the driving of the protruding cylinder and the rotating mechanism so that the suction device is positioned at a location corresponding to the calculated position information.

[0107] The control unit drives the suction pump to forcibly suck in the dust formed in the dust formation area and moves it to the collection unit through the tube.

[0108] In addition, the above suction device may further have brushes that physically contact the dust formation area. Effects of the invention

[0110] According to the present invention, through the means for solving the above problem, the following effects can be obtained.

[0111] The wall construction structure for a school classroom according to the present invention provides a significant technical effect compared to the prior art by arranging an insulation section, a sound-absorbing section, and a dry wall section in a multi-layered structure centered on reinforcing bars embedded inside the wall, applying a high-density auxiliary sound-absorbing material around a first through-hole, introducing a vacuum insulation control system in the insulation section, and applying a fastening structure including a metal pipe and a rolling member in the fastening section.

[0112] The auxiliary sound-absorbing material formed around the first through hole of the present invention is formed of a high-density material consisting of 70-85% by weight of polyester fiber, 10-20% by weight of polyurethane foam, 3-8% by weight of flame-retardant additive, and 2-5% by weight of binder, while the general area excluding the auxiliary sound-absorbing material is formed of a low-density sound-absorbing material consisting of 80-90% by weight of glass wool or low-density polyester fiber, 5-10% by weight of polyurethane foam, and 3-7% by weight of binder. Through this dual-density sound-absorbing structure, noise leakage that may occur around the fastening part can be effectively blocked, and a noise reduction effect of about 12-16 dB or more can be obtained compared to a wall structure using a conventional single-density sound-absorbing material.

[0113] In the present invention, a vacuum is formed in the grid-shaped unit space of the insulation section, and a stable insulation environment can be maintained by controlling the vacuum state in real time through a control unit linked with a temperature sensor and a vacuum sensor. Through this, the thermal conductivity can be reduced to a level of 0.018 W / m·K, which means an improvement in insulation performance of more than 40% compared to a wall structure using conventional foam insulation. This effect enables the maintenance of a comfortable temperature inside the classroom even with seasonal changes or external environmental factors, and enhances energy saving effects.

[0114] By including a flame-retardant additive in the auxiliary sound-absorbing material of the present invention, combustion can be suppressed and smoke generation minimized in the event of a fire, and a fire resistance performance of Grade 1 was obtained as a result of testing. Therefore, fire safety can be guaranteed even in multi-use facilities such as schools.

[0115] In the present invention, a metal tube is applied to the insertion hole of the fastening part and a rolling member is installed on the inner side to minimize frictional resistance when the shaft is inserted, and since the insertion force is significantly reduced during the fastening process, construction time can be shortened. As a result of actual construction tests, the structure of the present invention was able to reduce the construction time per 1 m² to approximately 25 minutes, which provides an effect of shortening construction time by more than 35% compared to conventional structures. In addition, the insertion hole structure with the metal tube prevents wear on the inner surface even with repeated fastening and unfastening, thereby improving durability, and maintenance work is also easy thanks to the modularized fastening part structure.

[0116] Test results comparing the performance of the present invention with conventional technology demonstrated that it is significantly superior in terms of sound insulation, thermal insulation, fire resistance, and constructability. The present invention achieved STC 55 in sound insulation performance, providing a noise reduction effect improved by approximately 12–16 dB compared to existing wall structures, and in terms of thermal insulation performance, lowered the thermal conductivity to 0.018 W / m·K, realizing an energy saving effect of more than 40% compared to conventional technology. In addition, it obtained Grade 1 fire resistance performance to enhance fire safety, and construction time was also reduced by approximately 35% compared to conventional technology.

[0117] The present invention provides a school classroom wall construction structure optimized in terms of sound insulation, thermal insulation, fire resistance, and constructability, and exhibits excellent technical effects that minimize noise interference between classrooms and increase energy efficiency, while simultaneously enhancing fire safety and maximizing construction and maintenance efficiency.

[0118] Since the main body moves along a rail provided on the classroom wall to measure fine dust concentrations at various locations, the present invention has the effect of detecting high-concentration pollutants occurring locally in specific areas without omission and managing the air quality of the entire classroom more uniformly.

[0119] Furthermore, since the present invention can predict future trends in air quality deterioration based on measurements from the sensor unit through the calculation unit, it has the effect of preemptively operating the ventilation unit before pollution intensifies. Accordingly, it is possible to prevent students and faculty members in the classroom from being exposed to poor air quality for extended periods.

[0120] In addition to the effects described above, the specific effects of the present invention are described together with the specific details for implementing the invention below. Brief explanation of the drawing

[0122] Figure 1 is a drawing showing the wall construction structure of a school classroom according to the present invention. FIG. 2 is a drawing showing an example of a configuration in which metal plates are spaced apart and integrally formed at multiple locations of a pair of drywall sections. FIG. 3 is a drawing showing a configuration in which an axis penetrates an insertion hole of a wall according to the present invention. Figure 4 is a drawing showing an example in which a metal tube, formed of metal, is inserted to form an insertion hole. FIG. 5 is a drawing showing an area where an auxiliary sound-absorbing material is formed in a sound-absorbing part according to the present invention. FIG. 6 is a drawing showing an example in which a main body for air quality management is installed on a wall according to the present invention. FIG. 7 is a drawing showing the configuration of an air quality management system installed on a wall according to the present invention. FIG. 8 is a cross-sectional view showing the arrangement of the first and second ducts according to the present invention. FIG. 9 is a diagram showing an example in which the air quality management system of the present invention is equipped with a computation unit. FIG. 10 is a diagram showing an example of a configuration that receives outdoor air quality information provided from an external air quality measuring device or an external public database (600) through a communication network. FIG. 11 is a drawing showing an example in which auxiliary measuring parts are provided in the main body. FIG. 12 is a drawing showing the operating state of auxiliary measuring units provided in the main body. Figure 13 is a drawing showing an example including a configuration for removing a dust-forming area. Specific details for implementing the invention

[0123] Hereinafter, embodiments of the present invention are described in detail with reference to the drawings so that those skilled in the art can easily implement the present invention.

[0124] The present invention may be implemented in various different forms and is not limited to the embodiments described herein.

[0125] To clearly explain the present invention, parts unrelated to the explanation have been omitted, and the same reference numerals are used for identical or similar components throughout the specification.

[0126] In the following description, the statement that any configuration is provided or arranged on the "upper (or lower) surface" or the "upper (or lower) surface" of the description means that any configuration is provided or arranged in contact with the upper (or lower) surface of the description.

[0127] Furthermore, it is not limited to not including any other configuration between the above description and any configuration provided or placed on (or under) the description.

[0128] The following describes the wall construction structure of a school classroom according to the present invention with reference to the attached drawings.

[0129] Figure 1 is a drawing showing the wall construction structure of a school classroom according to the present invention.

[0130] Referring to FIG. 1, the school classroom wall construction structure of the present invention comprises a school classroom wall (1100) in which reinforcing bars (1110) are embedded, a pair of insulation members (1200) disposed on both sides of the wall (1100), a pair of sound-absorbing members (1300) disposed on the outside of the pair of insulation members (1200), and a pair of dry wall members (1400) disposed on the outside of the pair of sound-absorbing members (1300).

[0131] Each of the above pair of insulation units (1200) includes an insulation unit body (1210) in which grid-shaped unit spaces (1211) are formed, a vacuum forming unit (1220) for forming a vacuum in each of the unit spaces (1211), vacuum sensors (1230) for measuring the vacuum level of each of the unit spaces (1211), a first temperature sensor (1240) for measuring a first temperature on one side of the insulation unit body (1210), a second temperature sensor (1250) for measuring a second temperature on the other side of the insulation unit body (1210), and a control unit (500) that receives the vacuum level measured by the vacuum sensors (1230) and controls the operation of the vacuum forming unit (1220) so that the difference temperature between the first temperature and the second temperature is included in a preset reference temperature range to control the vacuum formation in each of the unit spaces.

[0132] The outer surface of the above-mentioned insulating body (1210) forms a joint surface (not shown) with an uneven shape with the above-mentioned pair of sound-absorbing parts (1300).

[0133] The wall construction structure of a school classroom according to the present invention has a multi-layered structure in which an insulating section (1200), a sound-absorbing section (1300), and a dry wall section (1400) are arranged around an internal reinforcing bar (1110), thereby simultaneously improving heat blocking performance and noise blocking performance.

[0134] In particular, the insulation section (1200) forms a grid-shaped unit space (1211) to provide an efficient heat-blocking structure, and the internal vacuum state can be controlled in real time through a vacuum forming section (1220) and a vacuum sensor (1230) installed in each unit space. A first temperature sensor (1240) and a second temperature sensor (1250) measure the temperatures on both sides of the insulation section, and the control section (500) controls the vacuum forming section to maintain the temperature difference within a reference range, thereby ensuring stable insulation performance even with seasonal changes or changes in the external environment.

[0135] In addition, the outer surface of the insulation section (1200) and the sound-absorbing section (1300) form a bonding surface with an uneven shape, thereby minimizing resonance caused by wall vibration and suppressing the transmission of indoor and outdoor noise, thereby maximizing sound insulation performance between classrooms. Through this, noise interference between classrooms can be minimized and the learning environment can be maintained comfortably.

[0136] Furthermore, the construction structure of the present invention, which integrates vacuum insulation control technology and a sound-absorbing structure, has the advantage of optimizing the insulation and sound-absorbing performance of school buildings by simultaneously providing energy saving effects, improved construction efficiency, and ease of maintenance compared to conventional technology.

[0138] FIG. 2 is a drawing showing an example of a configuration in which metal plates are spaced apart and integrally formed at multiple locations of a pair of drywall sections.

[0139] Referring to FIG. 2, metal plates (1500) are integrally formed at intervals at multiple locations of the pair of dry wall sections (1400).

[0140] A fastening part (1510) is installed on each of the above metal plates (1500).

[0141] Each of the above-mentioned connecting parts (1510) includes a cylinder (1511) having a protruding shaft (1511a) according to the control of the control unit (500), and a connecting ring (1512) connected to the end of the shaft (1511a).

[0142] The above cylinder (1511) is fixed to the metal plate (1500).

[0143] The shaft (1511) penetrates the metal plate (1500), the sound-absorbing part (1300), and the insulation part (1200), and the connecting ring (1512) is fixed by being hooked onto the reinforcing bar (1110) embedded inside the wall (1100).

[0144] The wall construction structure of a school classroom according to the present invention secures both structural strength and construction stability of the wall simultaneously by a configuration comprising a metal plate (1500) integrally formed at a spaced interval at multiple locations of a pair of dry wall sections (1400) and a fastening part (1510) installed on each of these metal plates.

[0145] The connecting part (1510) consists of a cylinder (1511) driven by the control of the control part (500), a shaft (1511a) at its end, and a connecting ring (1512) connected to the end of the shaft. The cylinder (1511) is firmly fixed to the metal plate (1500), and the shaft (1511a) sequentially penetrates the metal plate (1500), the sound-absorbing part (1300), and the insulation part (1200) to be connected to a reinforcing bar (1110) embedded inside the wall (1100).

[0146] In particular, since the connecting ring (1512) located at the end of the shaft (1511a) is directly hooked and fixed to the reinforcing bar (1110) inside the wall, a fixed structure integrated with the internal structure of the wall can be realized, unlike the conventional simple fastening method. Accordingly, problems such as the dry wall section (1400), sound-absorbing section (1300), and insulation section (1200) shaking or detaching independently can be prevented, and the seismic performance and durability of the entire wall system can be significantly improved.

[0147] In addition, since the cylinder (1511) is linked with the control unit (500) to automatically control protrusion and contraction, the worker can quickly fasten and unfasten the wall module during on-site construction without using separate tools. This simplifies the construction process and shortens the construction period, and also allows for partial disassembly during future maintenance, thereby significantly increasing maintenance efficiency.

[0148] Accordingly, the metal plate (1500) and fastening part (1510) based structure of the present invention simultaneously provides a combination of technical effects, such as improved structural stability, maximized vibration and load distribution effects, improved construction efficiency and ease of maintenance, and maintenance of sound insulation and thermal insulation performance between classrooms, compared to conventional wall construction methods.

[0150] FIG. 3 is a drawing showing a configuration in which an axis penetrates an insertion hole of a wall according to the present invention.

[0151] Referring to FIG. 3, an insertion hole (1120) into which the shaft (1511a) is inserted is formed in the wall (1100).

[0152] Rolling members (1511b) that roll along the inner circumference of the insertion hole (1120) are installed on the outer circumference of the shaft (1511a).

[0153] In the wall construction structure of a school classroom according to the present invention, the shaft (1511a) of a fastening part (1510) passes through an insertion hole (1120) formed in the wall (1100), and a rolling member (1511b) is installed on the outer circumference of the shaft (1511a) so as to rotate freely along the inner circumference of the insertion hole (1120).

[0154] Accordingly, frictional resistance can be minimized when the shaft (1511a) passes through the insertion hole (1120) during the fastening process, and fastening errors that may occur during the insertion process can be effectively prevented. In particular, since the rolling member (1511b) performs a role similar to a rolling bearing between the shaft (1511a) and the insertion hole (1120), the insertion force required during fastening is significantly reduced. This reduces the load burden on the worker during wall construction and improves on-site work efficiency.

[0155] In addition, since the rolling member (1511b) moves smoothly along the inner circumference of the insertion hole (1120), surface wear and damage between the shaft (1511a) and the insertion hole (1120) can be minimized. This not only improves the durability of the internal structure of the wall but also has the advantage of maintaining fastening stability for a long period even during repeated use of the fastening part (1510).

[0156] Furthermore, the shaft (1511a) can be accurately connected to the reinforcing bar (1110) by the smooth rotation of the rolling member (1511b), thereby preventing positional errors and eccentricity problems that may occur during the construction process. This ensures accurate fixation of the fastening part penetrating the entire insulation section (1200), sound-absorbing section (1300), and dry wall section (1400), and minimizes deformation and vibration of the wall even after construction.

[0158] Figure 4 is a drawing showing an example in which a metal tube, formed of metal, is inserted to form an insertion hole.

[0159] Referring to FIG. 4, the insertion hole (1120) is formed by inserting a metal tube (1130) formed of metal.

[0160] The interior of the insertion hole (1120) is formed by filling it with an elastic material (not shown).

[0161] The above sound-absorbing part (1300) has first through holes (1310) through which the shaft (1511a) passes.

[0162] The wall construction structure of a school classroom according to the present invention is formed by inserting a metal pipe (1130) made of metal into an insertion hole (1120) formed in the wall (1100), and by filling the inside of the insertion hole (1120) with an elastic material (not shown), thereby simultaneously securing structural strength and airtightness when the shaft (1511a) of the fastening part (1510) is inserted.

[0163] A metal tube (1130) is installed along the inner circumference of the insertion hole (1120) to prevent wall damage and deformation of the insertion hole that may occur during the insertion process of the shaft (1511a). Accordingly, even if the shaft (1511a) is repeatedly fastened and unfastened, the phenomenon of wear or widening of the inner circumference of the insertion hole can be minimized, and the stability of the fastening part can be maintained even during long-term use.

[0164] In addition, the elastic material filled inside the metal tube (1130) absorbs the impact load generated when the shaft (1511a) is inserted and serves to tightly fix the shaft with elastic restoring force after fastening. This prevents loosening even when the fastening part is exposed to environmental changes such as external vibration or thermal deformation, and increases the stability of the entire wall structure.

[0165] In addition, the first through hole (1310) formed in the sound-absorbing part (1300) is designed so that the shaft (1511a) can pass through smoothly, thereby preventing damage to the sound-absorbing material during the installation of the fastening part and stably maintaining the sound absorption performance. In particular, the auxiliary sound-absorbing material (separate embodiment) reinforced around the first through hole suppresses noise leakage that may occur around the fastening part, thereby improving the sound insulation performance between classrooms.

[0167] FIG. 5 is a drawing showing an area where an auxiliary sound-absorbing material is formed in a sound-absorbing part according to the present invention.

[0168] Referring to FIG. 5, the surrounding areas on both sides of the first through holes (1310) are integrally formed with an auxiliary sound-absorbing material (1320).

[0169] The above auxiliary sound-absorbing material (1320) is set to be larger than a certain density than the density of the sound-absorbing portion in the area excluding the above auxiliary sound-absorbing material (1320).

[0170] The wall construction structure of a school classroom according to the present invention effectively prevents noise leakage and degradation of sound absorption performance that may occur at the point where the shaft (1511a) of the fastening part (1510) passes, by integrally forming an auxiliary sound-absorbing material (1320) in the surrounding area on both sides of the first through hole (1310) of the sound-absorbing part (1300).

[0171] Since the first through hole (1310) is used as a path for inserting the shaft (1511a), if the sound-absorbing material in this area is damaged or has low density, the sound insulation performance between classrooms may be reduced. To solve this, the present invention reinforces the area around the fastening part by forming an auxiliary sound-absorbing material (1320) at a high density around the first through hole. As a result, the sound leakage path that may occur in the first through hole area can be fundamentally blocked.

[0172] In addition, by setting the density of the auxiliary sound-absorbing material (1320) to be higher than that of the surrounding sound-absorbing section, the effect of suppressing structural vibrations and resonance occurring around the fastening section can be obtained. This contributes to maintaining uniform sound absorption performance throughout the classroom wall, and in particular, can simultaneously block high-frequency and low-frequency noise transmitted along the fastening section and the first through hole, thereby maximizing sound insulation performance.

[0173] Furthermore, the auxiliary sound-absorbing material (1320) may utilize a multilayer fiber structure or a high-density foam structure that maintains sound absorption performance despite its high density, thereby providing excellent sound absorption effects while maintaining the lightweight nature of the wall structure. Therefore, compared to wall structures using conventional single-density sound-absorbing materials, the present invention is advantageous for minimizing noise interference between classrooms and maintaining a comfortable learning environment.

[0175] The above auxiliary sound-absorbing material is formed from a high-density material composed of 70-85% by weight of polyester fiber, 10-20% by weight of polyurethane foam, 3-8% by weight of flame-retardant additive, and 2-5% by weight of binder.

[0176] The sound-absorbing portion of the area excluding the above auxiliary sound-absorbing material is formed of a low-density material comprising 80 to 90 weight percent glass wool or low-density polyester fiber, 5 to 10 weight percent polyurethane foam, and 3 to 7 weight percent binder.

[0177] The wall construction structure of a school classroom according to the present invention improves noise blocking performance and structural stability simultaneously by designing the auxiliary sound-absorbing material (1320) constituting the sound-absorbing section (1300) and the sound-absorbing section of the general area excluding the auxiliary sound-absorbing material with different densities and material composition ratios.

[0178] First, the auxiliary sound-absorbing material (1320) formed in the area surrounding the first through hole (1310) is formed from a high-density material composed of 70-85% by weight of polyester fiber, 10-20% by weight of polyurethane foam, 3-8% by weight of flame-retardant additive, and 2-5% by weight of binder. By optimizing the composition ratio in this way, the auxiliary sound-absorbing material (1320) not only effectively suppresses noise leakage that may occur around the first through hole into which the shaft (1511a) of the fastening part (1510) is inserted, but also absorbs and mitigates structural vibration transmission through the fastening part, thereby maximizing the sound insulation performance of the wall. In addition, by including a flame-retardant additive, it provides a combustion suppression effect of the auxiliary sound-absorbing material in the event of a fire, thereby improving safety in a school classroom environment.

[0179] On the other hand, the sound-absorbing section of the general area, excluding the auxiliary sound-absorbing material, is formed from a low-density material comprising 80 to 90 weight percent glass wool or low-density polyester fiber, 5 to 10 weight percent polyurethane foam, and 3 to 7 weight percent binder. Through this, the general sound-absorbing section can exhibit stable sound absorption performance over a large area while maintaining lightweight properties. In particular, by using glass wool or low-density polyester fiber as the main material, mid-to-low frequency acoustic energy generated between classrooms can be efficiently absorbed, thereby ensuring comfort in the student learning environment.

[0180] Consequently, the sound-absorbing structure of the present invention provides effects such as blocking noise leakage, suppressing vibration, and enhancing fire safety through a high-density auxiliary sound-absorbing material around the first penetration hole, while achieving lightweighting, improved constructability, and optimized sound absorption performance by applying a low-density sound-absorbing material in the general area. Compared to conventional wall structures using single-density sound-absorbing materials, this dual-density sound-absorbing design significantly improves the noise blocking capability between classrooms and simultaneously ensures construction efficiency and ease of maintenance.

[0182] Examples and comparative examples regarding the above are described.

[0183] To demonstrate the superior technical effects of the present invention, an embodiment according to the present invention and a comparative example corresponding to the prior art were established, and tests were performed on sound insulation performance, thermal insulation performance, fire resistance performance, and constructability.

[0184] division Sound insulation performance (STC) Average noise reduction rate (dB) Thermal conductivity (W / m·K) Construction time (minutes / m²) Fire resistance rating Example 1 55 >= 42 dB 0.018 25 minutes Grade 1 Comparative Example 1 43 28 dB 0.032 40 minutes Grade 2 Comparative Example 2 39 22 dB 0.03 38 minutes Grade 3

[0185] [Table 1] is a table showing examples and comparative examples according to the composition of auxiliary sound-absorbing materials and sound-absorbing materials in other areas.

[0186] In Example 1, the auxiliary sound-absorbing material applied to the area around the first through-hole was formed from a high-density material consisting of 75% by weight of polyester fiber, 15% by weight of polyurethane foam, 5% by weight of flame-retardant additive, and 5% by weight of binder, while the general sound-absorbing part excluding the auxiliary sound-absorbing material was formed from a low-density material consisting of 85% by weight of glass wool, 7% by weight of polyurethane foam, and 5% by weight of binder. Additionally, a vacuum insulation control system was applied to the insulation part, and a fastening structure using a metal tube and a rolling member was adopted for the insertion hole.

[0187] In contrast, Comparative Example 1 formed the entire sound-absorbing section with glass wool of the same density (density approximately 50 kg / m³) and did not apply an auxiliary sound-absorbing material, used expanded polystyrene (EPS) insulation for the insulation section, and configured the fastening section with a simple screw method. In addition, Comparative Example 2 formed the entire sound-absorbing section with polyurethane foam of a single density (density approximately 40 kg / m³), applied general expanded foam insulation for the insulation section, and did not apply a metal tube or rolling member to the insertion hole.

[0188] The test measured sound insulation performance in accordance with KS F 2860, evaluated thermal insulation performance according to KS L 9016, and verified fire resistance performance based on KS F 2257. In addition, construction time and ease of maintenance were comprehensively analyzed.

[0189] As a result of the test, Example 1 demonstrated significantly superior performance compared to the comparative examples. The sound insulation performance achieved an STC of 55, which was significantly higher than the STC of Comparative Example 1 (43) and Comparative Example 2 (39). Additionally, the average noise reduction rate was over 42 dB, confirming an improvement effect of approximately 12 dB or more compared to the comparative examples. In terms of thermal insulation performance, Example 1 exhibited a low thermal conductivity of 0.018 W / m·K, achieving an effect of reducing heat loss by approximately 40% or more compared to Comparative Examples 1 and 2. Furthermore, as a result of applying a flame-retardant additive to the auxiliary sound-absorbing material, Example 1 obtained a fire resistance rating of Grade 1, proving that fire safety was significantly improved compared to the comparative examples.

[0190] The present invention also demonstrated excellent results in constructability evaluation. Thanks to the metal pipe-based fastening structure incorporating rolling members, frictional resistance during the fastening process could be minimized, thereby reducing the construction time to approximately 25 minutes / m². This represents an improvement in construction efficiency of more than 35% compared to Comparative Examples 1 and 2. Furthermore, since the fastening structure is modularized and easy to maintain, it offers significant advantages over conventional technology in the replacement and repair process.

[0191] Accordingly, the present invention applies a high-density auxiliary sound-absorbing material around the first through-hole and uses a low-density material for the general sound-absorbing section, and combines a vacuum thermal insulation control system with a metal pipe-based fastening structure, thereby exhibiting superior effects in sound insulation performance, thermal insulation performance, fire resistance performance, and constructability compared to conventional technology. Through these experimental results, it was confirmed that the present invention is clearly differentiated from conventional technology and can simultaneously secure novelty and inventiveness.

[0193] FIG. 6 is a drawing showing an example in which a main body for air quality management is installed on a wall according to the present invention. FIG. 7 is a drawing showing the configuration of an air quality management system installed on a wall according to the present invention.

[0194] Referring to FIG. 6, among the pair of dry wall sections (1400), a metal plate (1600) formed of metal is installed in the upper area of ​​the dry wall section (1400) inside the classroom.

[0195] The metal plate (1600) is provided with a plurality of rods (1610), and the plurality of rods (1610) are connected by welding to the reinforcing bar (1110) embedded inside the wall (1100).

[0196] Additionally, the device includes a main body (100) movably disposed on the metal plate (1600), a moving part (200) provided on the metal plate (1600) and moving the main body (100) along a rail (11) formed on the metal plate (1600), a sensor part (300) provided on the main body (100) and measuring a dust concentration value at a certain position in the indoor space of the classroom at the location where the main body (100) is moved by the driving of the moving part (200), a ventilation part (400) provided on the main body (100) sucking in indoor air at a certain position in the indoor space and discharging it to the outside, and supplying outside air to the indoor space, and a control part (500) driving the ventilation part (400) and controlling the driving of the moving part (200) so that the measured dust concentration value reaches a preset standard dust concentration value.

[0197] The above rail (11) can be formed as a path that forms a curvature at the corner of the metal plate (1600).

[0198] The control unit (500) controls the operation of the moving unit (200) to continuously move the main body (100).

[0199] Referring to FIG. 7, the moving part (200) comprises a rotating ball (210) rotatably installed at the rear end of the main body part (100), a moving block (220) connected to the rotating ball (210) and movably coupled to the rail (11), and a linear motor (230) that moves the moving block (220) according to the control of the control part (500).

[0200] The above-mentioned rotating ball (210) rotates the main body (100) by driving the first rotating device (240). The first rotating device (240) is driven by the control of the control unit (500).

[0201] Additionally, the ventilation unit (400) includes an intake port (410) and an exhaust port (420) formed in the main body (100).

[0202] A first euro (411) connected to the intake port (410) and a second euro (421) connected to the discharge port (420) are formed.

[0203] In the first Euro (411), an intake fan (412) that sucks in the outside air under the control of the control unit (500) is installed, and in the second Euro (421), an exhaust fan (422) that discharges the indoor air under the control of the control unit (500) is installed.

[0204] The end of the first Euro (411) is connected to a first duct (413) that has flexibility.

[0205] The first duct (413) is placed in a first flow path (20) formed inside the metal plate (1600), and the end of the first duct (413) is exposed to the outside of the metal plate (1600).

[0206] The end of the second Euro (421) is connected to a second duct (423) that has flexibility.

[0207] The second duct (423) is placed in a second flow path (30) formed inside the metal plate (1600), and the end of the second duct (423) is exposed to the outside of the metal plate (1600).

[0208] Referring to this, the air quality management system for a school classroom according to the present invention operates around a main body (100) that moves along a rail (11) installed on a metal plate (1600) of the classroom.

[0209] The control unit (500) controls the operation of the moving unit (200) so that the main body (100) moves continuously throughout the classroom, thereby enabling the measurement of dust concentration values ​​at multiple locations inside the classroom. Through this, instead of measuring only the average value at a specific point as in the conventional method, it is possible to effectively detect high-concentration zones (hot spots) that occur locally within the classroom.

[0210] The moving part (200) includes a rotating ball (210) installed at the rear end of the main body (100), a moving block (220) connected to the rotating ball (210) and moving along a rail (11), and a linear motor (230) that moves the moving block (220) precisely according to the control of the control part (500).

[0211] The rotating ball (210) can rotate the main body (100) by driving the first rotating device (240), and through this, the main body (100) can perform ventilation and measurement in various directions within the classroom.

[0212] The sensor unit (300) provided in the main body (100) measures the dust concentration value at the moved location in real time. The measured dust concentration value is transmitted to the control unit (500), and the control unit (500) determines whether the value has reached a preset standard concentration. If it is determined that the standard will be exceeded, the control unit (500) operates the ventilation unit (400) to improve the air quality inside the classroom.

[0213] The ventilation unit (400) includes an intake port (410) and an exhaust port (420) provided in the main body (100), and a first airway (411) and a second airway (421) connected thereto. An intake fan (412) is installed in the first airway (411) to draw outside air into the classroom, and an exhaust fan (422) is installed in the second airway (421) to discharge indoor air to the outside. In this way, the ventilation unit (400) can improve air quality by rapidly inducing the circulation of indoor and outdoor air.

[0214] Additionally, the end of the first flow path (411) is connected to a first duct (413) that has flexibility, and the first duct (413) is placed in a first flow path (20) formed inside a metal plate (1600). The end of the first duct (413) is exposed to the outside of the wall so that outside air can be effectively drawn in. Likewise, the end of the second flow path (421) is connected to a second duct (423) that has flexibility, and the second duct (423) is placed in a second flow path (30) inside the wall, and its end is exposed to the outside so that indoor air can be smoothly discharged.

[0215] This flexible duct structure allows the main body (100) to move along the rail while stably performing the ventilation function.

[0216] Through such operation, the present invention provides the following effects.

[0217] First, since the main body (100) measures air quality while moving throughout the classroom, it can detect localized contamination occurring in specific areas within the classroom.

[0218] Second, the control unit (500) preemptively drives the ventilation unit (400) before reaching a standard concentration to prevent students and faculty from being exposed to poor air quality for a long time.

[0219] Third, the combination of flexible ducts and a movable rail structure allows for stable ventilation throughout the entire classroom, enabling uniform management of air quality across the entire space.

[0220] Fourth, by driving the rotating ball (210) and the first rotating device (240), the ventilation direction can be varied, allowing for customized ventilation tailored to the classroom structure or the pattern of contamination.

[0221] Therefore, the air quality management system for a school classroom according to the present invention provides excellent effects in detecting localized air quality deterioration at an early stage and improving students' health and learning environment through effective and preemptive ventilation control.

[0223] FIG. 8 is a cross-sectional view showing the arrangement of the first and second ducts according to the present invention.

[0224] Referring to FIG. 8, elastic rollers (40) are installed to roll on the inner walls of the first moving channel (20) and the second moving channel (30), respectively.

[0225] The elastic rollers (40) guide the movement of the outer circumference of the first duct (413) and the second duct (423).

[0226] Referring to FIG. 3, a plurality of elastic rollers (40) are provided on the inner walls of the first moving channel (20) and the second moving channel (30) according to the present invention. These elastic rollers (40) are rotatably arranged in contact with the outer surface of the first duct (413) and the second duct (423) to guide the outer surface of the duct when the duct moves along the moving channel.

[0227] Through the configuration of such an elastic roller (40), first, direct friction with the inner wall of the flow path can be prevented when the duct moves. Since the duct is formed of a flexible material, if it continuously comes into contact with the inner wall of the flow path, there is a risk that wear will occur or the duct will get stuck, making smooth movement difficult. However, in the present invention, the elastic roller (40) supports the outer circumference of the duct and performs a rolling motion, so frictional resistance is greatly reduced when the duct moves, allowing for smooth movement.

[0228] Second, the elastic roller (40) acts to cushion deformation of the outer circumference of the duct. When an external force or load is applied while the duct is moving, the elastic roller (40) absorbs the shock to prevent the duct from being compressed or bent. Therefore, the durability of the duct can be maintained even with long-term use, and the deterioration of ventilation performance can be prevented.

[0229] Third, due to the guiding effect of the elastic roller (40), the first duct (413) and the second duct (423) can move stably along a straight or curved path within the flow path. This has the effect of preventing the duct from bending or twisting, especially in sections where the rail (11) has curvature, such as the corners of the metal plate (1600).

[0230] Fourth, the suction and exhaust performance of the ventilation unit (400) is maintained consistently as the duct moves smoothly. If the duct does not move smoothly due to friction with the inner wall of the flow path, interference may occur in the suction and exhaust flow, and ventilation efficiency may decrease. In the present invention, this problem can be fundamentally solved through guidance by the elastic roller (40).

[0231] Therefore, the configuration according to FIG. 8 ensures the movement stability and durability of the duct and provides the effect of maintaining the performance of the ventilation unit stably for a long period of time. In addition, when the main body (100) moves throughout the classroom to perform ventilation, the reliability and efficiency of the entire system can be improved by enabling smooth movement of the duct.

[0233] FIG. 9 is a diagram showing an example in which the air quality management system of the present invention is equipped with a computation unit.

[0234] Referring to FIG. 9, the air quality management system of a school classroom further includes a calculation unit (510) that predicts future trends of air quality deterioration based on the measurement values ​​of the sensor unit (300).

[0235] The control unit (500) preemptively drives the ventilation unit (400) according to the prediction result of the calculation unit.

[0236] Referring to FIG. 4, the air quality management system for a school classroom according to the present invention further includes a calculation unit (510) that predicts future trends of air quality deterioration based on measurements from a sensor unit (300). The calculation unit (510) analyzes data collected from the sensor unit (300), such as fine dust concentration values, carbon dioxide (CO2) concentration values, and temperature and humidity values, in real time to predict the possibility of current air quality deterioration and the timing thereof.

[0237] The control unit (500) receives the prediction result from the calculation unit (510), and if it is determined that the result will exceed the reference value, it preemptively drives the ventilation unit (400) before the air quality actually reaches the reference concentration. For example, if the calculation unit (510) analyzes the increasing trend of CO2 concentration and the rising rate of fine dust concentration and determines that the reference concentration will be exceeded within 10 minutes, the control unit (500) drives the intake fan (412) and exhaust fan (422) of the ventilation unit (400) in advance to exchange the air inside the classroom with fresh outside air.

[0238] Through this configuration, first, unlike conventional methods that simply initiate ventilation after air quality deteriorates, ventilation can be performed preemptively based on prior prediction, thereby effectively preventing situations where the air quality inside the classroom deteriorates beyond the standard level.

[0239] Second, the timing and intensity of the operation of the ventilation unit (400) can be adjusted based on the prediction results, thereby reducing unnecessary ventilation and saving energy consumption. This is particularly advantageous when performing effective ventilation with minimal operation, especially when the external air quality is good.

[0240] Third, since the air quality trend can be precisely analyzed through the calculation unit (510), rapid deterioration of air quality caused by increased activity levels of students or changes in the external environment can be detected early. Through this, students can be prevented from being exposed to poor air quality for a long time, and a pleasant and healthy learning environment can be stably maintained.

[0241] Therefore, the introduction of the operation unit (510) according to Fig. 4 enables the school classroom air quality management system of the present invention to operate as a prediction-based active ventilation control system rather than a simple reactive ventilation method, thereby providing the effect of significantly improving the efficiency and stability of classroom air quality management.

[0242] In addition, the sensor unit (300) measures the carbon dioxide (CO₂) concentration value and combines the dust concentration value measured by the sensor unit with the carbon dioxide (CO) concentration value to estimate the trend of air quality deterioration according to the number of occupants and activity level in the classroom.

[0243] In addition, the calculation unit (510) analyzes the rate of change of the measured dust concentration value of the sensor unit (300) and detects in advance the occurrence of air quality deterioration if it exceeds a set threshold rate of change.

[0244] In particular, the above-mentioned operation unit (510) learns the dust concentration value measured by the sensor unit (300) using a machine learning or artificial intelligence model, and predicts the timing and degree of air quality deterioration based on the learned dust concentration value of the sensor unit.

[0245] Additionally, the control unit (500) variably controls the driving intensity and driving time of the ventilation unit according to the prediction result of the calculation unit (510), wherein the driving intensity is proportional to the rotational speed of the intake fan (413) and the exhaust fan (423).

[0246] In the air quality management system of a school classroom according to the present invention, the sensor unit (300) not only the fine dust concentration value but also carbon dioxide (CO₂) The concentration value is also measured. The sensor unit (300) combines the measured dust concentration value and the carbon dioxide concentration value to estimate the number of people occupying the classroom and the amount of activity, and can identify the trend of air quality deterioration accordingly. For example, if the carbon dioxide concentration rises rapidly, it can be interpreted as a situation where there are many people in the classroom or the amount of activity has increased, and by analyzing this together with the trend of dust concentration increase, a more accurate prediction of air quality deterioration is possible.

[0247] In addition, the calculation unit (510) continuously analyzes the rate of change of the dust concentration value obtained from the sensor unit (300), and if this rate of change exceeds a preset threshold, it detects in advance that air quality deterioration will soon occur. This rate of change-based analysis enables early recognition of the possibility of air quality deterioration even if the instantaneous concentration value has not yet reached the reference concentration.

[0248] In particular, the computation unit (510) learns the long-term pattern of dust concentration values ​​measured by the sensor unit (300) using a machine learning or artificial intelligence model. Based on the learned data, the computation unit (510) can predict the timing and severity of air quality deterioration, which provides much higher accuracy than simple statistical prediction. Therefore, the system of the present invention can actively predict changes in air quality according to the situation by combining past classroom environments and current measurement data.

[0249] The control unit (500) variably controls the driving intensity and driving time of the ventilation unit (400) by reflecting the prediction results of the calculation unit (510). The driving intensity is set in proportion to the rotational speed of the intake fan (412) and exhaust fan (422) included in the ventilation unit, thereby providing an optimal amount of ventilation tailored to the degree of contamination in the classroom and the expected rate of deterioration. For example, if it is predicted that air quality deterioration will proceed rapidly, the fan rotational speed is increased to perform strong ventilation, and if gradual deterioration is expected, the fan speed is lowered to save energy while maintaining comfortable air quality.

[0250] Through such operation, the present invention enables, first, much more precise and active air quality management than methods that simply control ventilation based on instantaneous concentration values. Second, by fusing dust and carbon dioxide data in the sensor unit to identify changes in air quality according to the number of people and activity levels, it is possible to implement control optimized for the actual usage conditions of a classroom. Third, by detecting deterioration early through rate of change analysis and an AI-based learning model, and performing preemptive and customized ventilation, the time students are exposed to poor air quality can be minimized. Fourth, by reducing unnecessary ventilation through variable control of driving intensity and duration, energy can be saved and the durability of the device can also be improved.

[0251] Therefore, the present invention goes beyond simple measurement and reactive response in classroom indoor air quality management to achieve the technical effects of data fusion-based predictive control and active ventilation optimization.

[0253] FIG. 10 is a diagram showing an example of a configuration that receives outdoor air quality information provided from an external air quality measuring device or an external public database (600) through a communication network.

[0254] Referring to FIG. 10, the control unit (500) receives outdoor air quality information provided from an external air quality measuring device or an external public database (600) through a communication network, and compares and analyzes the outdoor air quality information with the prediction result of the calculation unit (510). If the outdoor air quality satisfies a preset allowable standard, the ventilation unit (400) is driven, and if the outdoor air quality does not satisfy the allowable standard, the operation of the ventilation unit (400) is restricted, or the rotational speed of the intake fan (413) and the exhaust fan (423) is controlled to adjust the ventilation intensity and ventilation time.

[0255] Referring to FIG. 10, the air quality management system for a school classroom according to the present invention includes a configuration for receiving outdoor air quality information provided from an external air quality measuring device or an external public database (600) via a communication network. The control unit (500) compares and analyzes the outdoor air quality information received in this manner with the indoor air quality prediction result calculated by the calculation unit (510) to determine whether to ventilate and the ventilation intensity.

[0256] Specifically, when the external air quality satisfies a preset allowable standard, the control unit (500) normally operates the ventilation unit (400) to exchange the air inside the classroom with the outside air. On the other hand, when the external air quality does not satisfy the allowable standard due to yellow dust, ultrafine dust, or an increase in ozone concentration, the operation of the ventilation unit (400) is restricted, or the rotational speed of the intake fan (412) and exhaust fan (422) is adjusted to reduce or optimize the ventilation intensity and ventilation time. This prevents external contaminated air from unnecessarily entering the classroom.

[0257] Through this configuration, the present invention provides the following effects. First, since the air quality management inside the classroom does not rely solely on indoor data but also reflects external air quality information, more precise and environmentally friendly control is possible. Second, by preventing unnecessary ventilation when the external air quality is poor, the risk of students being exposed to external pollutants can be reduced. Third, when the external air quality is good, the control unit (500) actively performs ventilation to supply fresh outside air into the classroom, thereby maintaining a pleasant learning environment. Fourth, by adjusting the rotational speeds of the intake fan (412) and the exhaust fan (422) according to the situation, the ventilation intensity and time can be optimized, which provides the effect of reducing energy consumption and extending the lifespan of the device.

[0258] Therefore, the system of the present invention according to the embodiment of FIG. 10 enables intelligent ventilation control that comprehensively considers the indoor environment of the classroom and the outdoor atmospheric environment, thereby enabling the simultaneous achievement of student health protection and energy efficiency.

[0260] FIG. 11 is a drawing showing an example in which auxiliary measuring parts are provided in the main body.

[0261] Referring to FIG. 11, auxiliary measuring units (600) are installed at multiple locations on the main body (100).

[0262] Each of the above auxiliary measuring units (600) includes a cylinder (610) having an extendable shaft (611) and an auxiliary concentration sensor (620) installed at the end of the shaft (611) to measure a dust concentration value.

[0263] Each of the above auxiliary measuring parts (600) is placed in a receiving space (150) provided inside the main body part (100).

[0264] An auxiliary rail (630) is formed on the floor of the above-mentioned receiving space (150).

[0265] The cylinder (610) is movably coupled to the auxiliary rail (630) by the driving of the auxiliary linear motor (640).

[0266] The above receiving space (150) forms an opening that is exposed to the front of the main body (100).

[0267] A door (660) is installed in the above opening to open and close the opening according to the operation of a rotary motor (650) driven by the control of the control unit (500).

[0268] Referring to FIG. 11, the air quality management system for a school classroom according to the present invention may be equipped with auxiliary measuring units (600) at multiple locations on the main body (100). Each auxiliary measuring unit (600) includes a cylinder (610) having an extendable shaft (611) and an auxiliary concentration sensor (620) installed at the end of the shaft (611) to measure a dust concentration value. The auxiliary measuring unit (600) is placed in a receiving space (150) provided inside the main body (100), an auxiliary rail (630) is formed on the floor of the receiving space (150), and the cylinder (610) is coupled to be movable along the auxiliary rail (630) by driving an auxiliary linear motor (640).

[0269] The receiving space (150) has an opening that is exposed to the front of the main body (100), and this opening is selectively opened and closed by a door (660) when a rotary motor (650) is driven under the control of a control unit (500). When an auxiliary sensor is required, the control unit (500) drives the rotary motor (650) to open the opening, and then drives the auxiliary linear motor (640) to move the cylinder (610) forward. At this time, the shaft (611) is extended forward, and the auxiliary concentration sensor (620) installed at its end is exposed to a specific location inside the classroom so that the dust concentration value can be directly measured.

[0270] Through this configuration, the present invention produces the following effects. First, even if the main sensor unit (300) does not operate normally or signal transmission is delayed, the auxiliary measurement unit (600) can perform alternative measurements, thereby improving the stability and reliability of the system. Second, the auxiliary concentration sensor (620) protrudes outside the main body and can directly measure the air quality at a specific point inside the classroom, allowing for a more detailed understanding of the air quality distribution within the space. Third, by opening the opening only when necessary and protruding the sensor forward, the auxiliary sensor unit is prevented from being exposed to the external environment for a long time, and the degradation of sensor performance due to dust accumulation or contamination can be reduced. Fourth, through the configuration of the auxiliary linear motor (640) and the auxiliary rail (630), the movement and position control of the auxiliary sensor are precisely controlled, allowing for selective measurement at various locations within the classroom.

[0271] Accordingly, the embodiment of the present invention according to FIG. 11 provides the effect of reinforcing the reliability of indoor air quality measurement, enabling precise measurement according to spatial distribution, and ensuring the durability of the sensor and stable operation of the entire device.

[0273] FIG. 12 is a drawing showing the operating state of auxiliary measuring units provided in the main body.

[0274] Referring to FIG. 12, the control unit (500) receives a driving signal according to the driving of the sensor unit (300) measuring the dust concentration value.

[0275] If the control unit (300) does not receive the driving signal for a set period of time, it uses the rotary motor (650) to rotate the door (660) to open the opening, uses the auxiliary linear motor (640) to move the cylinder (610) to the vicinity of the opening, and uses the cylinder (610) to protrude the shaft (611) to form a set protrusion length.

[0276] The control unit (500) measures the auxiliary dust concentration value at the corresponding location through the auxiliary concentration sensor (620) installed at the end of the protruding shaft (611), receives the measured auxiliary dust concentration value, and drives the ventilation unit (400) to reach a preset standard dust concentration value.

[0277] Referring to FIG. 12, in the air quality management system of a school classroom according to the present invention, the control unit (500) receives a driving signal from the sensor unit (300) to measure a dust concentration value. Under normal conditions, the sensor unit (300) periodically transmits a driving signal, and the control unit (500) determines the air quality status in the classroom based on this.

[0278] However, if the control unit (500) determines that a driving signal is not received from the sensor unit (300) for a certain period of time or longer, that is, that an abnormality or signal omission has occurred in the sensor unit, it activates the auxiliary measuring unit (600). To do this, the control unit (500) drives the rotary motor (650) to open the door (660), and then drives the auxiliary linear motor (640) to move the cylinder (610) to the vicinity of the opening. Afterward, when the cylinder (610) is driven to protrude the shaft (611) forward, the auxiliary concentration sensor (620) installed at the end of the shaft (611) is exposed to the interior space of the classroom to directly measure the dust concentration value.

[0279] The control unit (500) receives the auxiliary measurement value obtained through the auxiliary concentration sensor (620) in this manner, and when the value reaches or exceeds a preset standard dust concentration value, it drives the ventilation unit (400) to exchange the indoor air of the classroom with the outside air. This prevents the deterioration of the air quality in the classroom even if a malfunction occurs in the sensor unit (300).

[0280] Through this configuration, the present invention achieves the following effects. First, even if the sensor unit (300) fails to operate normally due to a malfunction or communication failure, the air quality can be continuously monitored through the auxiliary measurement unit (600), thereby significantly improving the reliability and stability of the system. Second, since the auxiliary concentration sensor (620) protrudes to perform measurements only when necessary and is normally stored in the receiving space (150) and protected by the door (660), contamination or damage caused by the external environment can be minimized. Third, since the auxiliary measurement unit operates automatically in the event of a sensor malfunction, students and staff in the classroom can maintain a comfortable and safe environment without any gaps in air quality management. Fourth, the operation of the ventilation unit (400) can be based on the measurements of both the main sensor unit and the auxiliary sensor unit, enabling more precise and redundant air quality management.

[0281] Accordingly, the embodiment of the present invention according to FIG. 7 overcomes vulnerability caused by reliance on a single sensor and provides the effect of ensuring stability and reliability in classroom air quality management through a redundant measurement and control system.

[0283] Figure 13 is a drawing showing an example including a configuration for removing a dust-forming area.

[0284] Referring to FIG. 13, an image acquisition device (700) is installed at a certain position on the front of the main body (100) to acquire an image of the ceiling of the classroom and transmit the acquired image to the control unit (500).

[0285] The above main body (100) is equipped with a protruding cylinder (710) having a protruding shaft (711) that extends and retracts according to the control of the control unit (500).

[0286] A rotating member (720) is installed at the end of the protruding shaft (711), and a connecting bar (730) is installed on the rotating member (720). The rotating member (720) is connected to a rotating device (740), and the rotating device (740) rotates the connecting bar (730) according to the control of the control unit (500).

[0287] A first cylinder (750) having a first shaft (751) is installed at the end of the connecting bar (730). An elastic hopper-shaped suction device (760) is installed at the end of the first shaft (751), and the suction device (760) is connected to a collection unit (780) provided in the main body (100) through a tube (770). A suction pump (790) driven by the control of the control unit (500) is installed on the tube (770).

[0288] The control unit (500) searches for a dust formation area by image processing the acquired image. The control unit (500) is set with a reference dust area reference image to determine the existence of the dust formation area.

[0289] When the dust formation area is searched, the control unit (500) calculates location information of the dust formation area.

[0290] The control unit (500) controls the driving of the protruding cylinder and the rotating device so that the suction device (760) is positioned at a location corresponding to the calculated position information.

[0291] The control unit (500) drives the suction pump (790) to forcibly suck up the dust formed in the dust formation area and move it to the collection unit (780) through the tube (770).

[0292] Additionally, the suction device (760) may further have brushes (not shown) that physically contact the dust formation area.

[0293] Referring to FIG. 8, the air quality management system for a school classroom according to the present invention includes a configuration for detecting an area where dust is intensively formed inside the classroom and directly removing the area. An image acquisition device (700) is installed at the front end of the main body (100) to acquire an image of the classroom ceiling and transmit it to a control unit (500). The control unit (500) processes the image transmitted from the image acquisition device (700) to detect a specific area where dust is fixed and accumulated inside the classroom. At this time, the control unit (500) has a reference dust area image set in advance, and determines whether a dust formation area exists by comparing it with an image acquired in real time, and calculates location information of the area.

[0294] The main body (100) is provided with a protruding cylinder (710) having a protruding shaft (711), a rotating member (720) is installed at the end of the protruding shaft (711), and a connecting bar (730) is connected to the rotating member (720).

[0295] The rotating section (720) is connected to the rotating machine (740) and can rotate the connecting bar (730) according to the control of the control unit (500). A first cylinder (750) having a first shaft (751) is mounted on the end of the connecting bar (730), and an elastic hopper-shaped suction device (760) is installed on the tip thereof.

[0296] The suction device (760) is connected to a collection unit (780) provided in the main body (100) through a tube (770), and a suction pump (790) is installed in the tube (770) and driven according to the control of the control unit (500).

[0297] The control unit (500) drives the protruding cylinder (710) and the rotor (740) according to the calculated position information to control the suction device (760) to reach the dust formation area. Subsequently, the control unit (500) operates the suction pump (790) to forcibly suck up dust from the dust formation area and moves and collects it to the collection unit (780) through the tube (770). Additionally, if necessary, a brush (not shown) may be provided on the outer circumference of the suction device (760) to physically contact the dust formation area and perform mechanical removal simultaneously with suction.

[0298] Through such a configuration, the present invention provides the following effects. First, it is not limited to merely ventilating the air inside the classroom; since it can directly detect and remove areas where dust has accumulated intensively, it can suppress the root cause of air quality deterioration.

[0299] Second, the location detection method based on video acquisition and image processing enables automated cleaning and air quality management, minimizing manager intervention.

[0300] Third, the combination of the suction device (760) and the suction pump (790) can forcibly remove and collect dust particles, thereby reducing the possibility of scattering into the air inside the classroom and maintaining a clean state.

[0301] Fourth, if a brush is added, even surface-attached dust that is difficult to vacuum can be removed, allowing for effective management of long-term accumulated contamination inside the classroom.

[0302] Accordingly, the embodiment of the present invention according to FIG. 8 provides an integrated function of image-based detection, mechanical removal, and suction capture, thereby having the effect of providing an active and fundamental solution for air quality management in classrooms.

[0303] The present invention is not limited to the specific preferred embodiments described above, and anyone with ordinary knowledge in the art to which the invention pertains can make various modifications without departing from the essence of the invention as claimed in the claims, and such modifications will be within the scope of the claims. Explanation of the symbols

[0304] 1100 : Wall 1100 : Wall 1110 : Rebar 1120 : Insertion hole 1130 : Metal tube 1200 : Insulation part 1210 : Insulated body 1211 : Unit space 1220 : Vacuum forming unit 1230 : Vacuum sensor 1240: First temperature sensor 1250 : Second temperature sensor 1300 : Sound-absorbing part 1310: First penetration hole 1320 : Auxiliary sound-absorbing material 1400 : Drywall section 1500 : Metal plate 1510 : Connecting part 1511 : Cylinder 1511a : Axis 1511b : Cloud absence 1512 : Connecting ring 11 : Rail 20 : 1st Mobile Euro 30 : 2nd Mobile Euro 40: Elastic roller 100 : Main body 150 : Capacity 200 : Moving part 210: Rotating ball 220 : Move block 230 : Linear motor 240: First rotation machine 300 : Sensor section 400 : Ventilation unit 410 : Intake port 411 : 1 Euro 412 : Suction fan 413 : 1st duct 420 : Outlet 421 : 2nd Euro 422 : Exhaust fan 423 : 2nd duct 500 : Control unit 510 : Operation unit 600 : Auxiliary measuring unit 610 : Cylinder 611 : Celebration 620: Auxiliary concentration sensor 630: Auxiliary rail 640: Auxiliary linear motor 650: Rotary motor 660 : Door 700 : Image acquirer 710: Protruding cylinder 711 : Protrusion axis 720 : Rotating section 730 : Connection bar 740 : Rotor 750 : 1st cylinder 751 : 1st axis 760 : Inhaler 770 : Tube 780 : Collection unit 790 : Suction pump

Claims

Claim 1 A school classroom wall with reinforcing bars embedded inside; a pair of insulation sections disposed on both sides of the wall; a pair of sound-absorbing sections disposed outside the pair of insulation sections; and a pair of dry wall sections disposed outside the pair of sound-absorbing sections;Each of the above-mentioned pair of insulation members comprises an insulation member body in which grid-shaped unit spaces are formed, a vacuum forming member for forming a vacuum in each of the unit spaces, vacuum sensors for measuring the vacuum degree of each of the unit spaces, a first temperature sensor for measuring a first temperature on one side of the insulation member body, a second temperature sensor for measuring a second temperature on the other side of the insulation member body, and a control member that receives the vacuum degree measured by the vacuum sensors and controls the operation of the vacuum forming member so that the difference temperature between the measured first temperature and the second temperature is included in a preset reference temperature range to control the vacuum formation in each of the unit spaces; the outer surface of the insulation member body forms an uneven surface with a coupling surface with an uneven shape with respect to the above-mentioned pair of sound-absorbing members, and metal plates are integrally formed at intervals at multiple locations of the above-mentioned pair of dry wall members, and fastening members are installed on each of the metal plates, and each of the fastening members comprises a cylinder having a protruding shaft according to the control of the control member and a coupling connected to the end of the shaft. A wall construction structure for a school classroom, comprising a ring, wherein the cylinder is fixed to the metal plate, and the shaft is fixed by being hooked onto the reinforcing bar embedded inside the wall through the metal plate, the sound-absorbing part, and the thermal insulation part, wherein the wall has an insertion hole into which the shaft is inserted, and rolling members that roll along the inner circumference of the insertion hole are installed on the outer circumference of the shaft, wherein the insertion hole is formed by inserting a metal tube formed of metal, and the interior of the insertion hole is filled with an elastic material, and wherein the sound-absorbing part has first through holes through which the shaft passes, wherein the surrounding areas on both sides of the first through holes are integrally formed with an auxiliary sound-absorbing material, and wherein the density of the auxiliary sound-absorbing material is set to be greater than a certain level than the density of the sound-absorbing part in the area excluding the auxiliary sound-absorbing material. Claim 2 delete Claim 3 delete Claim 4 A wall construction structure for a school classroom according to claim 1, wherein the auxiliary sound-absorbing material is formed of a high-density material comprising 70-85% by weight of polyester fiber, 10-20% by weight of polyurethane foam, 3-8% by weight of flame-retardant additive, and 2-5% by weight of binder, and the sound-absorbing portion in the area excluding the auxiliary sound-absorbing material is formed of a low-density material comprising 80-90% by weight of glass wool or low-density polyester fiber, 5-10% by weight of polyurethane foam, and 3-7% by weight of binder.

Images