A prefabricated building integrating concealed heating and ventilation channels

Abstract

This utility model discloses a prefabricated building integrating concealed heating and ventilation channels, relating to the field of building equipment technology. It includes a prefabricated building body, with an air supply component fixedly installed on the outer wall of the prefabricated building body. A sensing component is connected to the top of the air supply component, which includes a distribution box. A mixing pipe is fixedly connected to the end of the distribution box away from the air supply component. A connecting component is fixedly connected to the end of the mixing pipe. A first ventilation pipe is fixedly connected to the end of the connecting component away from the mixing pipe. A second ventilation pipe is connected to the end of the first ventilation pipe. This utility model features a structure linking the air supply component and the sensing component, enabling stable introduction and delivery of external air to the distribution box. The rotation of the air guide plate is driven by the thermal expansion and contraction effect of ether within the annular cylinder, automatically adjusting the opening state of the cold and hot air ducts according to the ambient temperature. This achieves a passive temperature control function that switches between cold and hot air without the need for an electrical control system. The structure is simple, the response is sensitive, and the energy consumption is extremely low.

Description

Technical Field

[0001] This utility model relates to the field of building equipment technology, specifically to a prefabricated building that integrates concealed heating and ventilation channels. Background Technology

[0002] With the widespread adoption of prefabricated buildings in residential, office, and public facilities, people's requirements for living comfort, energy efficiency, and system integration are constantly increasing. Traditional prefabricated buildings often use external centralized pipe networks or single ventilation methods for ventilation and heating systems, which have problems such as dispersed systems, large space occupation, and complex installation and commissioning. In particular, they lack effective means to achieve hot and cold air conversion and airflow control, making it difficult to adapt to the indoor environment regulation needs brought about by changes in outdoor temperature.

[0003] While some existing ventilation structures have been optimized in terms of duct connection, such as using nested combinations of trapezoidal and curved plates to reduce manufacturing difficulty, they generally lack the ability to dynamically control the air supply path and airflow temperature, making it impossible to achieve reasonable distribution and mixing of hot and cold air. Furthermore, they still have problems such as exposure and land occupation in the interior space layout of buildings. Therefore, how to integrate a compact, responsive heating and ventilation system that can automatically switch between hot and cold air according to the ambient temperature into prefabricated buildings has become a key technical issue for improving the overall comfort and intelligence level of buildings.

[0004] A search revealed that the prior art publication number CN214148228U discloses a ventilation structure for prefabricated buildings, which includes a main duct and a secondary main duct, connected by a transition duct. Both the main and secondary main ducts have rectangular cross-sections. The transition duct includes two side plates and two trapezoidal plates, with the trapezoidal plates forming an isosceles trapezoid. A first connecting arc plate is provided on the side where the isosceles trapezoid is located, and a second connecting arc plate is provided on the two opposite sides of the side plates. The first and second connecting arc plates are nested together. This design reduces the manufacturing difficulty of the variable cross-section transition duct.

[0005] Therefore, based on the above retrieval and combined with existing technologies, the existing ventilation structure for prefabricated buildings only focuses on optimizing the structural connections between ventilation ducts. It cannot achieve dynamic control of the temperature of incoming air and the ventilation path, and lacks environmental adaptability. Especially in scenarios of temperature changes, it cannot automatically switch ventilation modes or work in conjunction with heating devices according to changes in outdoor temperature, nor can it achieve intelligent distribution and neutralization of hot and cold air. Therefore, it is significantly lacking in terms of functional integration, intelligent adjustment capabilities, and indoor air comfort, and it is difficult to meet the comprehensive needs of modern prefabricated buildings for energy saving, comfort, and automation. Utility Model Content

[0006] The purpose of this invention is to provide a prefabricated building that integrates concealed heating and ventilation channels to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A prefabricated building integrating concealed heating and ventilation channels includes a prefabricated building body. An air supply component is fixedly installed on the outer wall of the prefabricated building body. A sensing component is connected to the top of the air supply component. The sensing component includes a distribution box. The end of the distribution box away from the air supply component extends into the interior of the prefabricated building body and is fixedly connected to a mixing pipe. The end of the mixing pipe away from the distribution box is fixedly connected to an adjustable-length connecting component. The end of the connecting component away from the mixing pipe is fixedly connected to a first ventilation pipe. The end of the first ventilation pipe away from the connecting component is connected to a second ventilation pipe.

[0009] Furthermore, the air supply assembly includes a centrifugal fan, which is fixedly installed on the outer wall of the prefabricated building body, and an air supply duct is fixedly installed at the air outlet on the top of the centrifugal fan.

[0010] Furthermore, the distribution box has an air inlet chamber at the end near the air supply duct, and the end of the air supply duct away from the centrifugal fan is fixedly connected to the bottom surface of the air inlet chamber.

[0011] Furthermore, an air outlet pipe is provided at the end of the distribution box away from the air inlet chamber. The air outlet pipe is fixedly inserted into a prefabricated hole opened on the outer wall of the prefabricated building body, and the end face of the air outlet pipe away from the distribution box is fixedly connected to the mixing pipe.

[0012] Furthermore, a rotating shaft is rotatably connected at the center of the distribution box, and an air guide plate is welded and fixed to the outer wall of the rotating shaft. An annular cylinder is fixedly installed on the front end face of the distribution box, and an annular drive rod is slidably connected to the inner wall of the annular cylinder.

[0013] Furthermore, a connecting rod is fixedly installed at the end of the annular drive rod away from the annular cylinder, and the end of the connecting rod away from the annular drive rod is coaxially and fixedly connected to the rotating shaft.

[0014] Furthermore, a partition plate is fixedly installed on the inner wall of the air outlet duct, and an electric heating mesh is fixedly installed on the top surface of the partition plate.

[0015] Furthermore, the connecting assembly includes a connecting fold, with corrugated sleeves fixedly installed at both ends of the connecting fold, and the ends of the two corrugated sleeves away from the connecting fold being fixedly connected to the ends of the mixing pipe and the first ventilation pipe, respectively.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In use, this utility model sets up a structure that links the air supply component and the sensing component, so that the external air can be stably introduced and delivered to the distribution box. The air guide plate is driven to rotate by the thermal expansion and contraction effect of the ether in the annular cylinder, thereby automatically adjusting the opening state of the cold air duct and the hot air duct according to the ambient temperature. This realizes a passive temperature control function that can switch between cold and hot air without the need for an electrical control system. The structure is simple, the response is sensitive, and the energy consumption is extremely low.

[0018] 2. When in use, this utility model rationally divides the air outlet duct into a cold air duct and a warm air duct by setting a partition plate and an electric heating net, so that the airflow can accurately switch paths according to the angle of the air guide plate, and heats the incoming airflow during cold periods and keeps the electric heating net closed during hot periods. Combined with the neutralizing effect of the mixing pipe, it effectively improves the comfort and temperature stability of indoor air, and has good climate adaptability and energy-saving performance.

[0019] 3. In use, this utility model delivers airflow evenly to the interior of the prefabricated building body through the connecting components, the first ventilation pipe, and the second ventilation pipe. The ventilation pipes are integrated above the ceiling panel and achieve concealed air supply through ventilation holes. This not only saves indoor space but also ensures uniform air supply. At the same time, the connecting components have a flexible structure with adjustable length, which can effectively adapt to different installation environments, reduce construction errors, improve overall assembly efficiency and system adaptability, and fully demonstrate the integrated and modular advantages of prefabricated building components. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is an exploded view of the overall structure of this utility model;

[0022] Figure 3 This is an exploded view of the air supply component structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the sensing component structure of this utility model;

[0024] Figure 5 This is an exploded view of the sensing component structure of this utility model;

[0025] Figure 6 This is a cross-sectional view of the sensing component structure of this utility model;

[0026] Figure 7 This is an exploded view of the connecting component structure of this utility model.

[0027] In the picture:

[0028] 1. Prefabricated building body; 11. Ceiling panel;

[0029] 2. Air supply assembly; 21. Centrifugal fan; 22. Air supply duct;

[0030] 3. Induction assembly; 31. Distribution box; 311. Air inlet chamber; 312. Air inlet duct; 313. Air outlet duct; 314. Positioning ring; 315. Divider plate; 32. Rotating shaft; 321. Air guide plate; 33. Annular cylinder; 34. Annular drive rod; 35. Connecting rod; 36. Electric heating mesh;

[0031] 4. Mixing tube;

[0032] 5. Connecting components; 51. Connecting bend; 52. Corrugated sleeve;

[0033] 6. First ventilation duct;

[0034] 7. Second ventilation duct. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Example 1: Please refer to Figures 1-3 A prefabricated building integrating concealed heating and ventilation channels includes a prefabricated building body 1. An air supply component 2 is fixedly installed on the outer wall of the prefabricated building body 1. A sensing component 3 is connected to the top of the air supply component 2. The sensing component 3 includes a distribution box 31. The end of the distribution box 31 away from the air supply component 2 extends into the interior of the prefabricated building body 1 and is fixedly connected to a mixing pipe 4. The end of the mixing pipe 4 away from the distribution box 31 is fixedly connected to an adjustable-length connecting component 5. The end of the connecting component 5 away from the mixing pipe 4 is fixedly connected to a first ventilation pipe 6. The end of the first ventilation pipe 6 away from the connecting component 5 is connected to a second ventilation pipe 7. Specifically, a ceiling panel 11 is installed on the inner wall of the prefabricated building body 1 near the top. The mixing pipe 4, the connecting component 5, the first ventilation pipe 6, and the second ventilation pipe 7 are all installed on the top surface of the ceiling panel 11. Several ventilation holes are equidistantly opened on the ends of the first ventilation pipe 6 and the second ventilation pipe 7 away from the inner wall of the prefabricated building body 1. The ventilation holes are used to deliver natural wind and warm air to the inner wall of the prefabricated building body 1.

[0037] The air supply assembly 2 includes a centrifugal fan 21, which is fixedly installed on the outer wall of the prefabricated building body 1. Specifically, a fixing frame is fixedly installed on the outer wall of the prefabricated building body 1 by bolts, and the centrifugal fan 21 is fixedly installed on the outer wall of the fixing frame by bolts. An air supply pipe 22 is fixedly installed at the air outlet at the top of the centrifugal fan 21.

[0038] Example 2: Please refer to Figures 2-7A prefabricated building integrating concealed heating and ventilation channels differs from Embodiment 1 in that the distribution box 31 has an air inlet chamber 311 at one end near the air supply duct 22, and the end of the air supply duct 22 away from the centrifugal fan 21 is fixedly connected to the bottom surface of the air inlet chamber 311. Specifically, an air inlet pipe 312 is provided on the top surface of the air inlet chamber 311, and the bottom surface of the air inlet pipe 312 is fixedly connected to the top surface of the air supply duct 22 by bolts. The air supply duct 22 communicates with the interior of the air inlet chamber 311 through the air inlet pipe 312. An air outlet pipe 313 is provided at the end of the distribution box 31 away from the air inlet chamber 311, and the air outlet pipe 313 is fixedly inserted into a prefabricated hole opened on the outer wall of the prefabricated building body 1. The end face of the air outlet pipe 313 away from the distribution box 31 is fixedly connected to the mixing pipe 4. Specifically, the air outlet pipe... A positioning ring 314 is welded and fixed to the outer wall of the distribution box 313. The positioning ring 314 is fixedly connected to the outer wall of the prefabricated building body 1 by bolts. A rotating shaft 32 is rotatably connected to the center of the distribution box 31. A guide plate 321 is welded and fixed to the outer wall of the rotating shaft 32. An annular cylinder 33 is fixedly installed on the front end face of the distribution box 31. An annular drive rod 34 is slidably connected to the inner wall of the annular cylinder 33. Specifically, a piston is fixedly installed at the end of the annular drive rod 34 near the annular cylinder 33. The piston is slidably connected inside the annular cylinder 33. The space between the piston and the inner bottom surface of the annular cylinder 33 is filled with ether. Ether has the property of thermal expansion and contraction. The material of the annular cylinder 33 is copper. Copper has good thermal conductivity. The annular cylinder 33 senses the external temperature and transfers the temperature to the surrounding environment. The internal ether, through thermal expansion or contraction, drives the piston to move within the inner wall of the annular cylinder 33. The piston drives the annular drive rod 34 to move synchronously. A connecting rod 35 is fixedly installed at the end of the annular drive rod 34 away from the annular cylinder 33. The end of the connecting rod 35 away from the annular drive rod 34 is coaxially and fixedly connected to the rotating shaft 32. Specifically, the ether, through thermal expansion or contraction, drives the annular drive rod 34 to move synchronously. The annular drive rod 34, through the connecting rod 35, drives the rotating shaft 32 to rotate synchronously. The rotating shaft 32 drives the air guide plate 321 to adjust its angle inside the distribution box 31. A partition plate 315 is fixedly installed on the inner wall of the air outlet duct 313. An electric heating mesh 36 is fixedly installed on the top surface of the partition plate 315. Specifically, the partition plate 315 divides the air outlet duct 313. The system forms a cold air duct and a warm air duct. In hot weather, the ether expands due to heat, causing the movable annular drive rod 34 to move synchronously. The annular drive rod 34, via the connecting rod 35, drives the rotating shaft 32 to rotate synchronously. The rotating shaft 32 adjusts the angle of the air guide plate 321 inside the distribution box 31, sealing the hot air duct. At this time, the electric heating network 36 is not working, and the airflow generated by the centrifugal fan 21 enters the mixing pipe 4 entirely from the cold air duct. In cold weather, the ether contracts due to cold, causing the movable annular drive rod 34 to move synchronously. The annular drive rod 34, via the connecting rod 35, drives the rotating shaft 32 to rotate synchronously. The rotating shaft 32 adjusts the angle of the air guide plate 321 inside the distribution box 31, sealing the cold air duct. At this time, the electric heating network 36 begins to work.At this time, the airflow generated by the centrifugal fan 21 enters the mixing pipe 4 entirely from the cold air duct. Within this cold and hot zone, the rotation of the air guide plate 321 can control the size of the inlet of the cold or hot air duct, thereby flexibly distributing the air intake. After the hot and cold air enter the mixing pipe 4, they are neutralized, and then transported by the mixing pipe 4 to the first ventilation pipe 6 and the second ventilation pipe 7.

[0039] The connecting component 5 includes a connecting bend 51, with corrugated sleeves 52 fixedly installed at both ends of the connecting bend 51. The ends of the two corrugated sleeves 52 away from the connecting bend 51 are fixedly connected to the ends of the mixing pipe 4 and the first ventilation pipe 6, respectively. Specifically, the length of the corrugated sleeves 52 can be adjusted in real time to reduce assembly difficulties and errors.

[0040] Working principle: During use, external air is first introduced through the air supply assembly 2 installed on the outer wall of the prefabricated building body 1. The air supply assembly 2 is equipped with a centrifugal fan 21. After the centrifugal fan 21 is started, it generates airflow and delivers the air to the distribution box 31 in the sensing assembly 3 through the air supply pipe 22 at its top. Inside the distribution box 31, there is an adjustable angle air guide plate 321. The air guide plate 321 is driven by the central rotating shaft 32 to achieve rotation adjustment. The rotating shaft 32 is connected to the annular drive rod 34 through the connecting rod 35. The annular drive rod 34 slides on the inner wall of the annular cylinder 33. The material of the annular cylinder 33 is copper. Copper has good thermal conductivity. The annular cylinder 33 senses the external temperature and transfers the temperature to the ether inside. The ether expands or contracts due to heat and drives the piston to move on the inner wall of the annular cylinder 33. The piston drives the annular drive rod 34 to move synchronously, thereby adjusting the position of the air guide plate 321 according to the change of ambient temperature.

[0041] The partition plate 315 divides the air outlet duct 313 into a cold air duct and a warm air duct. When the weather is hot, the ether expands due to heat, causing the movable annular drive rod 34 to move synchronously. The annular drive rod 34 drives the rotating shaft 32 to rotate synchronously through the connecting rod 35. The rotating shaft 32 drives the air guide plate 321 to adjust its angle inside the distribution box 31, and the air guide plate 321 closes the hot air duct. At this time, the electric heating network 36 does not work, and the airflow generated by the centrifugal fan 21 completely enters the mixing pipe 4 from the cold air duct. When the weather is cold, the ether contracts due to cold, causing the movable annular drive rod 34 to move synchronously. 4. The rotating shaft 32 is driven to rotate synchronously by the connecting rod 35. The rotating shaft 32 drives the air guide plate 321 to adjust the angle inside the distribution box 31. The air guide plate 321 closes the cold air duct. At this time, the electric heating network 36 starts to work. At this time, the airflow generated by the centrifugal fan 21 enters the mixing pipe 4 completely from the cold air duct. In this cold and hot range, the rotation of the air guide plate 321 can control the size of the inlet of the cold air duct or the hot air duct, so as to flexibly distribute the air intake. After the hot air and cold air enter the mixing pipe 4, they are neutralized and then transported to the first ventilation pipe 6 and the second ventilation pipe 7 by the mixing pipe 4.

[0042] The mixed airflow is transported to the interior of the prefabricated building body 1 through the first ventilation pipe 6 and the second ventilation pipe 7. The mixing pipe 4, the connecting component 5, the first ventilation pipe 6 and the second ventilation pipe 7 are all installed on the top of the ceiling panel 11. The outer walls of the first ventilation pipe 6 and the second ventilation pipe 7 are evenly provided with multiple ventilation holes, which are used to transport the treated air to the interior of the prefabricated building body 1, thereby achieving integrated heating and ventilation effects. The connecting component 5 adopts a connecting folded pipe 51 structure including a corrugated sleeve 52, which has good flexibility and can automatically adjust the length according to the actual size of the assembly site, thereby improving the convenience of installation and reducing errors. At this point, the work of this device is completed.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A prefabricated building integrating concealed heating and ventilation channels, comprising a prefabricated building body (1), characterized in that: An air supply assembly (2) is fixedly installed on the outer wall of the prefabricated building body (1). A sensing assembly (3) is connected to the top of the air supply assembly (2). The sensing assembly (3) includes a distribution box (31). The end of the distribution box (31) away from the air supply assembly (2) extends into the interior of the prefabricated building body (1) and is fixedly connected to a mixing pipe (4). The end of the mixing pipe (4) away from the distribution box (31) is fixedly connected to an adjustable length connecting assembly (5). The end of the connecting assembly (5) away from the mixing pipe (4) is fixedly connected to a first ventilation pipe (6). The end of the first ventilation pipe (6) away from the connecting assembly (5) is connected to a second ventilation pipe (7).

2. A prefabricated building with integrated concealed heating and ventilation channels according to claim 1, characterized in that: The air supply assembly (2) includes a centrifugal fan (21), which is fixedly installed on the outer wall of the prefabricated building body (1), and an air supply pipe (22) is fixedly installed at the air outlet at the top of the centrifugal fan (21).

3. A prefabricated building with integrated concealed heating and ventilation channels according to claim 2, characterized in that: The distribution box (31) has an air inlet chamber (311) at one end near the air supply pipe (22), and the end of the air supply pipe (22) away from the centrifugal fan (21) is fixedly connected to the bottom surface of the air inlet chamber (311).

4. A prefabricated building with integrated concealed heating and ventilation channels according to claim 3, characterized in that: The distribution box (31) is provided with an air outlet pipe (313) at one end away from the air inlet chamber (311). The air outlet pipe (313) is fixedly inserted into a prefabricated hole opened on the outer wall of the prefabricated building body (1). The end face of the air outlet pipe (313) away from the distribution box (31) is fixedly connected to the mixing pipe (4).

5. A prefabricated building with integrated concealed heating and ventilation channels according to claim 4, characterized in that: A rotating shaft (32) is rotatably connected to the center of the distribution box (31). A guide plate (321) is welded and fixed to the outer wall of the rotating shaft (32). An annular cylinder (33) is fixedly installed on the front end face of the distribution box (31). An annular drive rod (34) is slidably connected to the inner wall of the annular cylinder (33).

6. A prefabricated building with integrated concealed heating and ventilation channels according to claim 5, characterized in that: A connecting rod (35) is fixedly installed at the end of the annular drive rod (34) away from the annular cylinder (33), and the end of the connecting rod (35) away from the annular drive rod (34) is coaxially fixedly connected to the rotating shaft (32).

7. A prefabricated building with integrated concealed heating and ventilation channels according to claim 6, characterized in that: A partition plate (315) is fixedly installed on the inner wall of the air outlet pipe (313), and an electric heating mesh (36) is fixedly installed on the top surface of the partition plate (315).

8. A prefabricated building with integrated concealed heating and ventilation channels according to claim 1, characterized in that: The connecting assembly (5) includes a connecting bend (51), and corrugated sleeves (52) are fixedly installed at both ends of the connecting bend (51). The ends of the two corrugated sleeves (52) away from the connecting bend (51) are fixedly connected to the ends of the mixing pipe (4) and the first ventilation pipe (6), respectively.

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