A flexible air duct hole-free fresh air installation system

Abstract

The utility model discloses a flexible air duct is exempted from punching fresh air installation system, including fan shell and installation mechanism, fan shell: its upper and lower both ends are all seted up with the sliding slot, the left side of fan shell is equipped with the split stream storehouse, the lower extreme of split stream storehouse is equipped with the air supply port, installation mechanism: it includes lifting piece, limit slot, adjusting block, clamping plate and installation component, and lifting piece all sliding connections in the inside of sliding slot, and the left and right side wall middle part of lifting piece under is seted up with limit slot respectively, and adjusting block sliding connection in the inside lower extreme middle of fan shell, this flexible air duct is exempted from punching fresh air installation system, is equipped with installation mechanism, and through the lifting of lifting piece can fastly fix fan equipment in the inside of different size window frame, and the up and down fixed time still takes into account the front and back limit simultaneously, and the sealing of cooperation sealing rubber pad and sealing rubber strip can fast and efficiently fix fan equipment, avoids the situation of fan equipment to fall off to occur.

Description

Technical Field

[0001] This utility model relates to the field of fresh air system technology, specifically a flexible air duct, non-drilling fresh air installation system. Background Technology

[0002] A fresh air system is an intelligent ventilation system that circulates indoor and outdoor air through mechanical ventilation equipment. Its core function is to introduce fresh outdoor air into the room after filtration (removing dust, PM2.5, and other pollutants), while simultaneously expelling stale indoor air. This system effectively improves air quality in enclosed spaces, reducing carbon dioxide concentrations, formaldehyde, and other harmful substances. It is suitable for residential and office buildings, and is particularly effective in balancing ventilation needs and energy-saving goals in areas with severe smog or cold climates. To avoid drilling into walls and windows, most existing fresh air systems are drill-free systems, mainly composed of a fan, filter, flexible ductwork, and PTC heating plate. Ventilation is achieved in each room through distribution chambers and air outlets. The fan unit has movable lifting blocks at both ends, driven by electric push rods. The synchronous outward movement of the lifting blocks can fix the fan equipment to the window frame. When in use, the fan rotates forward, and fresh air from outside is drawn in by the fan and filtered through the filter before entering the distribution chamber, thus allowing fresh air to enter. When exhaust is needed, the fan rotates in reverse, the pressure inside the distribution chamber is low, and indoor air enters the distribution chamber through the filter at the air outlet and is then exhausted by the fan. When air heating is needed, the PTC heating plate is energized and dissipates heat, heating the air as it passes through the PTC heating plate. Traditional fresh air systems rely solely on two lifting blocks to fix the fan equipment to the window frame during installation. The fan equipment lacks front and rear limits, and there is a large gap between the fan equipment casing and the window, resulting in poor installation and easy detachment. Therefore, we propose a flexible duct, no-drill fresh air installation system. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a flexible duct no-drill fresh air installation system. It is equipped with an installation mechanism, which can quickly fix the fan equipment inside window frames of different sizes by lifting the lifting block. While fixing it at the top and bottom, it also takes into account the front and rear limit. With the sealing of the sealing gasket and sealing strip, the fan equipment can be fixed quickly and efficiently, avoiding the occurrence of the fan equipment falling off. It can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flexible ductless fresh air installation system, including a fan housing and an installation mechanism;

[0005] Fan casing: It has grooves at both the top and bottom, a flow divider on the left side of the fan casing, and an air outlet at the bottom of the flow divider.

[0006] The installation mechanism includes a lifting block, a limiting groove, an adjusting block, a clamping plate, and an installation component. The lifting blocks are slidably connected to the inside of the sliding groove. The limiting grooves are respectively located in the middle of the left and right side walls of the lower lifting block. The adjusting block is slidably connected to the middle of the lower end of the fan housing. Limiting posts are provided at the front ends of both sides of the adjusting block, and the outer surfaces of the limiting posts are slidably connected to the inner walls of the vertically adjacent limiting grooves. A movable clamping plate is provided at the lower end of the adjusting block to provide a foundation for the installation of the fan equipment. The installation component is located between the upper end of the fan housing and the upper lifting block, and is equipped with an installation mechanism. By raising and lowering the lifting block, the fan equipment can be quickly fixed inside window frames of different sizes. While fixing the upper and lower parts, it also provides front and rear limiting. Combined with the sealing gaskets and sealing strips, the fan equipment can be quickly and efficiently fixed, preventing it from falling off.

[0007] Furthermore, it also includes a microcontroller, which is located at the lower front end of the fan housing. The input terminal of the microcontroller is electrically connected to an external power source to provide control for the fresh air system.

[0008] Furthermore, the installation mechanism also includes a lead screw and a limiting block. The lead screw is rotatably connected to the inside of the adjusting block. The upper part of the clamping plate is threadedly connected to the outer surface of the lead screw. An adjusting knob is provided at the rear end of the lead screw. Limiting blocks are provided at the left and right ends and the front side of the bottom end of the fan housing. The limiting blocks are installed in conjunction with the clamping plate. The position of the adjusting block can be changed to adapt to window frames of different sizes.

[0009] Furthermore, the installation assembly includes a lead screw and a knob. The lead screw is rotatably connected to the middle of the upper part of the fan housing. The outer surface of the lead screw is threadedly connected to the middle of the upper lifting block. The knob is rotatably connected to the upper part of the fan housing. The inner wall of the knob is fixedly connected to the lower end of the outer surface of the lead screw, providing a driving effect for fixing the fan equipment.

[0010] Furthermore, the installation assembly also includes sealing gaskets and sealing strips. The sealing gaskets are all disposed on the outer surface of the lifting block, and the sealing strips are respectively disposed on the front and rear ends of the left and right sides of the fan housing. The sealing gaskets are installed in conjunction with the sealing strips to provide a sealing effect for fixing the fan equipment.

[0011] Furthermore, it also includes an impeller, a filter screen, and a PTC heating plate. The impeller is rotatably connected to the inside of the fan housing, the filter screen is located on the inside rear side of the fan housing, and the PTC heating plate is located on the inside front side of the fan housing. The inner walls of the filter screen and the PTC heating plate are fitted to the outer surface of the impeller. The input end of the PTC heating plate is electrically connected to the output end of the microcontroller, providing a basis for heating and filtering the air.

[0012] Furthermore, it also includes a motor, which is located in the middle of the lower end of the fan housing. The input end of the motor is electrically connected to the output end of the microcontroller, and the upper end of the motor's output shaft is fixedly connected to the lower end of the impeller, providing a basis for air intake and exhaust.

[0013] Furthermore, it also includes an air guide chamber, which is located at the front end of the fan casing. Air guide ducts are provided between the air guide chamber and the distribution chamber, as well as between the distribution chamber and the air outlet, to provide a basis for air flow.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This flexible duct, no-drill fresh air installation system has the following advantages:

[0015] 1. By changing the position of the clamping plate to adapt to window frames of different thicknesses, the clamping plate and the limiting block form a front and rear limiting effect on the window frame by pressing the limiting post through the limiting groove. The lifting block above forms an upper and lower limiting effect on the fan, while at the same time exerting a downward force on the fan casing, making the limiting groove press the limiting post more forcefully, thereby making the clamping plate fit more tightly with the window frame, improving the installation efficiency of the fan equipment and preventing the fan equipment from falling off.

[0016] 2. After the fan equipment is fixed, the fan casing, window and window frame are pressed against each other, causing the sealing gasket and sealing strip to deform. At the same time, the contact points of the sealing gasket and sealing strip will also deform and stick together, so that the fan casing is fixed and a sealing effect is formed between the window frame and the window. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the installation mechanism of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the installation component of this utility model;

[0020] Figure 4 This is a schematic diagram of the impeller structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the limiting groove structure of this utility model.

[0022] In the diagram: 1. Fan housing, 2. Slide groove, 3. Mounting mechanism, 31. Lifting block, 32. Limiting groove, 33. Adjusting block, 34. Clamping plate, 35. Mounting assembly, 351. Lead screw one, 352. Knob, 353. Sealing gasket, 354. Sealing strip, 36. Lead screw two, 37. Limiting block, 4. Impeller, 5. Filter screen, 6. PTC heating plate, 7. Motor, 8. Air guide chamber, 9. Diversion chamber, 10. Air outlet, 11. Air guide duct, 12. Microcontroller. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 This embodiment provides a technical solution: a flexible ductless fresh air installation system, including a fan housing 1 and an installation mechanism 3;

[0025] Fan housing 1: Slide grooves 2 are provided at both the top and bottom ends. A flow distribution chamber 9 is located on the left side of the fan housing 1, used to distribute air to various rooms. An air outlet 10 is located at the lower end of the flow distribution chamber 9. It also includes an impeller 4, a filter screen 5, and a PTC heating plate 6. The impeller 4 is rotatably connected to the middle of the inside of the fan housing 1. The filter screen 5 is located on the rear side of the inside of the fan housing 1, and is composed of a primary filter cotton mesh and an activated carbon adsorption mesh, capable of filtering the air. The PTC heating plate 6 is located on the front side of the inside of the fan housing 1. The PTC heating plate is a heating element made of PTC material. PTC material has significant temperature sensitivity; when the temperature exceeds its Curie temperature, the resistance value increases stepwise with the increase in temperature, thus achieving a constant temperature heating effect. The PTC heating plate 6 utilizes this characteristic to automatically adjust the power output during the heating process, maintaining a constant surface temperature unaffected by the ambient temperature. The inner walls of both the filter screen 5 and the PTC heating plate 6 are... The outer surface of the impeller 4 is fitted with a filter screen 5 and a PTC heating plate 6, which enclose the impeller 4. The air first flows through the filter screen 5 for filtration and then is heated by the PTC heating plate 6. The input end of the PTC heating plate 6 is electrically connected to the output end of the microcontroller 12, providing a basis for air heating and filtration. The system also includes a motor 7, which is located in the middle of the lower end of the fan housing 1. The input end of the motor 7 is electrically connected to the output end of the microcontroller 12. The upper end of the output shaft of the motor 7 is fixedly connected to the lower end of the impeller 4, providing a basis for air intake and exhaust. The system also includes an air guide chamber 8, which is located at the front end of the fan housing 1. Air guide ducts 11 are provided between the air guide chamber 8 and the diversion chamber 9, as well as between the diversion chamber 9 and the air outlet 10. The air guide chamber 8 is used to guide the airflow into the air guide duct 11, providing a basis for air flow. The system also includes a microcontroller 12, which is located at the lower front end of the fan housing 1. The input end of the microcontroller 12 is electrically connected to an external power source, providing control for the fresh air system.

[0026] Installation mechanism 3 includes lifting blocks 31, limiting grooves 32, adjusting blocks 33, clamping plates 34, and installation components 35. The lifting blocks 31 are slidably connected to the interior of the sliding grooves 2. The limiting grooves 32 are respectively opened in the middle of the left and right side walls of the lower lifting blocks 31. The limiting grooves 32 are inclined grooves with a higher rear and lower front. The adjusting blocks 33 are slidably connected to the lower center of the interior of the fan housing 1. Limiting posts are provided on the front ends of both sides of the adjusting blocks 33, and the outer surfaces of the limiting posts are slidably connected to the inner walls of the vertically adjacent limiting grooves 32. Movable clamping plates 34 are provided at the lower interior of the adjusting blocks 33 to secure the fan equipment. The mounting mechanism 3 provides a foundation and includes a lead screw 36 and a limiting block 37. The lead screw 36 is rotatably connected to the inside of the adjusting block 33. The upper part of the clamping plate 34 is threadedly connected to the outer surface of the lead screw 36. An adjusting knob is provided at the rear end of the lead screw 36. Limiting blocks 37 are provided at the left and right ends and the front side of the bottom end of the fan housing 1. The limiting blocks 37 are all installed in conjunction with the clamping plate 34. The limiting blocks 37 and the clamping plate 34 can form a clamping effect on the window frame. The position of the adjusting block 33 can be changed to adapt to window frames of different sizes. The mounting component 35 is set inside the upper part of the fan housing 1 and the upper... Inside the lifting block 31, the mounting assembly 35 includes a lead screw 351 and a knob 352. The lead screw 351 is rotatably connected to the middle of the upper part of the inside of the fan housing 1, and its outer surface is threaded to the middle of the inside of the upper lifting block 31. The knob 352 is rotatably connected to the upper part of the inside of the fan housing 1, and its inner wall is fixedly connected to the lower end of the outer surface of the lead screw 351, providing a driving effect for fixing the fan equipment. The mounting assembly 35 also includes a sealing gasket 353 and a sealing strip 354. The sealing gasket 353 is disposed on the outer surface of the lifting block 31, and the sealing strip is... Strips 354 are respectively set at the front and rear ends of the left and right sides of the fan housing 1. The sealing gaskets 353 are installed in conjunction with the sealing strips 354. When the sealing gaskets 353 and the sealing strips 354 are deformed under force, they will stick together to provide a sealing effect for fixing the fan equipment. An installation mechanism 3 is provided. By lifting the lifting block 31, the fan equipment can be quickly fixed inside the window frame of different sizes. While fixing it at the top and bottom, it also takes into account the front and rear limit. With the sealing of the sealing gaskets 353 and the sealing strips 354, the fan equipment can be fixed quickly and efficiently, and the fan equipment can be prevented from falling off.

[0027] The working principle of the flexible duct, non-drilling fresh air installation system provided by this utility model is as follows: When installing the fan equipment in the fresh air system, first open the window, then adjust the position of the clamping plate 34 according to the thickness of the window frame. Rotate the adjustment knob to drive the lead screw 36 to rotate, and the clamping plate 34 moves accordingly until the distance between the clamping plate 34 and the limiting block 37 is greater than the thickness of the window frame. At this time, the lower lifting block 31 is located outside the fan housing 1, the adjusting block 33 and the clamping plate 34 protrude backward, and the limiting post is located at the rear end of the limiting groove 32. Place the fan housing 1 inside the window frame, so that the rear end of the limiting block 37 is close to the front end of the window frame, so that the lower... The lifting block 31 is pressed against the bottom wall of the window frame, pressing down on the fan housing 1. The fan housing 1 drives the adjusting block 33 to move downwards. Limited by the limiting groove 32, the limiting groove 32 presses against the limiting post, causing the limiting post to move forward. The adjusting block 33 and the clamping plate 34 also move forward until the front end of the clamping plate 34 is pressed against the surface of the window frame. At this point, the limiting block 37 and the clamping plate 34 form a front-to-back limiting effect on the window frame. Then, the fan housing 1 is moved away from the window until the left side of the fan housing 1 is pressed against the left side wall of the window frame. The knob 352 is rotated, causing the lead screw 351 to rotate. The upper lifting block 31 moves upwards to press against the top wall of the window frame. At this point, the upper lifting block 31... As the fan housing 1 moves upward, its overall height increases, firmly pressing it against the inside of the window frame. At this point, the upper lifting block 31 remains stationary against the top wall of the window frame. Continuing to rotate the knob 352 creates a downward force on the fan housing 1, causing the limiting groove 32 to press more forcefully against the limiting post, thus making the clamping plate 34 fit more tightly against the window frame. Simultaneously, the sealing gaskets 353 on the surfaces of the upper and lower lifting blocks 31 deform and adhere tightly to the window frame. Then, pulling the corresponding window allows the end of the window near the left side wall of the window frame to contact the right side of the fan housing 1. The sealing gaskets 353 and sealing strips 354 on both sides of the fan housing 1 also deform. The sealing gasket 353 and sealing strip 354 will also deform at the contact point and stick together tightly. While the fan housing 1 is fixed, it also forms a sealing effect between the window frame and the window, completing the fixation of the fan equipment. The microcontroller 12 controls the motor 7 to operate. The motor 7 drives the impeller 4 to rotate forward. External air is drawn in by the impeller 4 after being filtered by the filter screen 5. When air needs to be heated, the microcontroller 12 controls the PTC heating plate 6 to work. The PTC heating plate 6 dissipates heat to heat the air flowing through it. The air enters the distribution chamber 9 through the air guide duct 11, and then is evenly delivered to each room through the distribution chamber 9 and the air outlet 10, achieving the effect of fresh air.

[0028] It is worth noting that the microcontroller 12 disclosed in the above embodiments is an STM8S005C6T6TR microcontroller, and the motor 7 is a 2BLD10-24GN-20S motor. The microcontroller 12 controls the operation of the PTC heating plate 6 and the motor 7 using methods commonly used in the prior art.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flexible duct, non-drilling fresh air installation system, characterized in that: Includes the fan housing (1) and the mounting mechanism (3); Fan casing (1): It has a sliding groove (2) at both the top and bottom ends. A flow divider (9) is provided on the left side of the fan casing (1), and an air outlet (10) is provided at the bottom of the flow divider (9). The installation mechanism (3) includes a lifting block (31), a limiting groove (32), an adjusting block (33), a clamping plate (34), and an installation component (35). The lifting blocks (31) are all slidably connected to the inside of the sliding groove (2). The limiting grooves (32) are respectively opened in the middle of the left and right side walls of the lower lifting block (31). The adjusting block (33) is slidably connected to the middle of the lower end of the fan housing (1). The front ends of the left and right sides of the adjusting block (33) are provided with limiting posts. The outer surface of the limiting posts is slidably connected to the inner wall of the vertically adjacent limiting groove (32). The lower end of the inside of the adjusting block (33) is provided with a movable clamping plate (34). The installation component (35) is located between the upper end of the inside of the fan housing (1) and the inside of the upper lifting block (31).

2. The flexible duct, non-drilling fresh air installation system according to claim 1, characterized in that: It also includes a microcontroller (12), which is located at the lower front end of the fan housing (1), and the input terminal of the microcontroller (12) is electrically connected to an external power supply.

3. The flexible duct, non-drilling fresh air installation system according to claim 1, characterized in that: The installation mechanism (3) also includes a second lead screw (36) and a limiting block (37). The second lead screw (36) is rotatably connected to the inside of the adjusting block (33). The upper part of the clamping plate (34) is threadedly connected to the outer surface of the second lead screw (36). The rear end of the second lead screw (36) is provided with an adjusting knob. The left and right ends and the front side of the bottom end of the fan housing (1) are all provided with limiting blocks (37). The limiting blocks (37) are all installed in conjunction with the clamping plate (34).

4. The flexible duct, non-drilling fresh air installation system according to claim 1, characterized in that: The mounting assembly (35) includes a lead screw (351) and a knob (352). The lead screw (351) is rotatably connected to the middle of the upper part of the fan housing (1). The outer surface of the lead screw (351) is threadedly connected to the middle of the upper part of the lifting block (31). The knob (352) is rotatably connected to the upper part of the fan housing (1). The inner wall of the knob (352) is fixedly connected to the lower end of the outer surface of the lead screw (351).

5. The flexible duct, non-drilling fresh air installation system according to claim 4, characterized in that: The installation assembly (35) also includes sealing gaskets (353) and sealing strips (354). The sealing gaskets (353) are all disposed on the outer surface of the lifting block (31), and the sealing strips (354) are respectively disposed on the front and rear ends of the left and right sides of the fan housing (1). The sealing gaskets (353) are all installed in conjunction with the sealing strips (354).

6. The flexible duct, non-drilling fresh air installation system according to claim 2, characterized in that: It also includes an impeller (4), a filter screen (5) and a PTC heating plate (6). The impeller (4) is rotatably connected to the middle of the inside of the fan housing (1). The filter screen (5) is located on the rear side of the inside of the fan housing (1). The PTC heating plate (6) is located on the front side of the inside of the fan housing (1). The inner walls of the filter screen (5) and the PTC heating plate (6) are fitted with the outer surface of the impeller (4). The input end of the PTC heating plate (6) is electrically connected to the output end of the microcontroller (12).

7. The flexible duct, non-drilling fresh air installation system according to claim 6, characterized in that: It also includes a motor (7), which is located in the middle of the lower end of the fan housing (1). The input end of the motor (7) is electrically connected to the output end of the microcontroller (12), and the upper end of the output shaft of the motor (7) is fixedly connected to the lower end of the impeller (4).

8. The flexible duct, non-drilling fresh air installation system according to claim 1, characterized in that: It also includes an air guide chamber (8), which is located at the front end of the fan casing (1). Air guide pipes (11) are provided between the air guide chamber (8) and the diversion chamber (9) and between the diversion chamber (9) and the air outlet (10).

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