Pipe mounting structure and ventilation system

Abstract

The application discloses a pipeline mounting structure and a ventilation system. The pipeline mounting structure comprises a ventilation pipe, a protective pipe, a mounting pipe and a water absorption layer. The mounting pipe is adapted to be arranged in a mounting hole of a wall. The protective pipe is wrapped around the outer periphery of the mounting pipe. A gap is formed between the protective pipe and the mounting pipe. The water absorption layer is filled in at least part of the gap. A cavity is formed in the protective pipe. One end of the ventilation pipe is communicated with the cavity. The other end of the ventilation pipe is adapted to be communicated with an indoor environment. A plurality of first through holes are arranged on the side of the protective pipe facing the gap. The first through holes are communicated with the gap and the cavity. A plurality of second through holes are arranged on the side of the mounting pipe facing the gap. A channel is formed in the mounting pipe. The second through holes are communicated with the gap and the channel. In this way, the protective pipe is wrapped around the outer periphery of the mounting pipe. The cavity is formed in the protective pipe. The ventilation pipe is communicated with the cavity. Therefore, the integration between the mounting pipe and the protective pipe is improved.

Description

Technical Field

[0001] This application belongs to the field of pipeline installation technology, specifically relating to a pipeline installation structure and a ventilation system. Background Technology

[0002] Due to the application of air conditioning systems, the use of various synthetic building materials, the widespread use of modern office equipment, the improvement of building airtightness, and the reduction of fresh air volume to save energy, the concentration of indoor PM2.5 and toxic gases and other pollutants is constantly increasing. Fresh air equipment can draw purified outdoor air into the room. Fresh air equipment consists of ventilation fans that can exchange and purify air, ducts, and other accessories. The ventilation fans filter and purify fresh outdoor air and deliver it indoors through ducts.

[0003] In related technologies, to reduce the number of openings in the wall, the existing air conditioner mounting holes are usually used to install the ductwork of the fresh air system. However, because the air conditioner's connecting hose and the fresh air system's ductwork are installed in the same mounting hole, the space occupied is large, and the connecting hose and the fresh air system's ductwork are prone to aging. Summary of the Invention

[0004] This application aims to provide a duct installation structure and ventilation system that can solve the problems of large space occupation and easy aging of air conditioning connecting hoses and fresh air equipment ducts.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a pipe installation structure, comprising: a ventilation pipe, a protective pipe, an installation pipe, and a water-absorbing layer; the installation pipe is adapted to pass through an installation hole in a wall, the protective pipe covers the outer periphery of the installation pipe, a gap exists between the protective pipe and the installation pipe, and the water-absorbing layer fills the gap; a cavity is formed in the protective pipe, one end of the ventilation pipe communicates with the cavity, and the other end is adapted to communicate with the indoor environment; a plurality of first through holes are provided on the side of the protective pipe facing the gap, the first through holes communicating with the gap and the cavity; a plurality of second through holes are provided on the side of the installation pipe facing the gap, a channel is formed in the installation pipe, and the second through holes communicating with the gap and the channel.

[0007] Optionally, it also includes a mounting disc; the mounting disc has a third through hole, the protective tube passes through the third through hole, at least a portion of the mounting tube is connected to the protective tube, and the ventilation pipe passes through the mounting disc and communicates with the cavity.

[0008] Optionally, the mounting disc has a guide hole, and a fastener is provided in the guide hole, the fastener being adapted to be connected to a wall.

[0009] Optionally, a plurality of fasteners are provided; the plurality of fasteners are spaced apart circumferentially along the mounting disc.

[0010] Optionally, a sealing layer is provided between the mounting disc and the wall, the sealing layer being used for sealing between the mounting disc and the wall.

[0011] Optionally, the absorbent layer is a porous absorbent material layer.

[0012] Optionally, the porosity of the porous absorbent material layer is 30%-80%; and / or, the pore size of the porous absorbent material layer is 1mm-8mm.

[0013] Optionally, it also includes two fixing components; the two fixing components are disposed opposite to each other on the mounting disc, and a clamping space is formed between the two fixing components, in which the ventilation pipe is clamped.

[0014] Optionally, the fixing component includes a fixing seat, a support frame, and a push rod; the fixing seat is disposed on the mounting disc, the support frame is connected to the fixing seat, the push rod passes through the support frame, and the clamping space is formed between the push rods of the two fixing components. The push rod can move relative to the support frame to adjust the size of the clamping space.

[0015] Optionally, the fixing component further includes a clamping block; one end of the clamping block is connected to the push rod, the ventilation pipe has a groove at a position corresponding to the clamping block, and the other end of the clamping block is engaged in the groove.

[0016] Optionally, both the clamping block and the bottom of the groove are arc-shaped, with the clamping block abutting against the bottom of the groove; the curvature of the side of the clamping block near the groove is the same as the curvature of the bottom of the groove.

[0017] Optionally, the clamping block has an arc surface on the side facing the groove, and the bottom of the groove is adapted to the arc surface.

[0018] Optionally, the curvature of the arc surface is the same as the curvature of the groove bottom.

[0019] Optionally, it also includes a corrosion-resistant layer; the corrosion-resistant layer covers the circumferential outer surface of the protective tube.

[0020] Secondly, this application provides a ventilation system, including the duct installation structure and air conditioning equipment described in the above embodiments. The air conditioning equipment includes: a connecting hose, an outdoor air conditioning unit, and an indoor air conditioning unit.

[0021] The connecting hose is inserted into the installation pipe, with one end of the connecting hose connected to the outdoor unit of the air conditioner and the other end connected to the indoor unit of the air conditioner.

[0022] Optionally, it also includes a fresh air device; the fresh air device is connected to the ventilation duct.

[0023] In the embodiments of this application, by inserting the mounting pipe through a mounting hole in the wall, and covering the outer periphery of the mounting pipe with a protective pipe, a gap exists between the protective pipe and the mounting pipe, and the absorbent layer fills at least part of the gap; a cavity is formed in the protective pipe, one end of the ventilation pipe communicates with the cavity, and the other end is adapted to communicate with the indoor environment; a plurality of first through holes are provided on the side of the protective pipe facing the gap, and the first through holes communicate with the gap and the cavity; a plurality of second through holes are provided on the side of the mounting pipe facing the gap, and a channel is formed in the mounting pipe, and the second through holes communicate with the gap and the channel. In this way, by covering the outer periphery of the mounting pipe with the protective pipe, forming a cavity in the protective pipe, and the ventilation pipe communicating with the cavity, the integration between the mounting pipe and the protective pipe is improved; and since outdoor air enters from the channel, passes through the second through holes, the absorbent layer, the first through holes, the cavity, and the ventilation pipe in sequence, and finally enters the room, the protective pipe and the mounting pipe are less prone to aging, thereby improving the service life of the protective pipe and the mounting pipe.

[0024] In addition, since the air passes through the water-absorbing layer, the moisture in the air will be absorbed by the water-absorbing layer, thereby avoiding water leakage caused by the moisture in the air corroding the inner wall of the protective pipe and the installation pipe, which would affect the use of air conditioning and fresh air equipment.

[0025] In addition, by inserting the installation pipe through the installation hole in the wall and covering the outer circumference of the installation pipe, the installation pipe can also be protected by the protective pipe. At the same time, since the protective pipe is placed in the installation hole, the total volume of air in contact with the installation hole is reduced, thereby preventing moisture in the air from corroding the wall over a long period of time, which would lead to the wall becoming soft and the wall's support strength being reduced.

[0026] In addition, because the moisture in the air is absorbed in advance by the water-absorbing layer, the humid outdoor air is turned into dry air and introduced into the room, thereby improving the comfort of the indoor air.

[0027] In addition, since the air intake duct of the fresh air equipment has been reserved in advance, it can effectively avoid damaging the original installation holes of the air conditioner, saving time and effort.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a front view of a pipe installation structure according to an embodiment of this application;

[0031] Figure 2 This is a side view of a pipe installation structure according to an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the absorbent layer according to an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the connection between the fixing component and the ventilation pipe according to an embodiment of this application.

[0034] Figure label:

[0035] 1-Ventilation duct; 2-Protective duct; 3-Installation duct; 4-Water-absorbing layer; 5-Wall; 6-Installation hole; 7-Cavity; 8-Installation disc; 9-Guide hole; 10-Fastener; 11-Gasket; 12-Sealing layer; 13-Fixing component; 131-Fixing base; 132-Support frame; 133-Push rod; 134-Clamping block; 135-Second knob; 14-Groove; 15-Connection port; 16-Corrosion-resistant layer; 17-First knob; 18-Connection part; 19-Gap; 20-Channel; 21-First layer pipe; 22-Second layer pipe. Detailed Implementation

[0036] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0037] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] As people's demands for indoor air quality increase, simple air conditioning systems are no longer sufficient to meet the need for fresh air. Therefore, fresh air systems are gaining popularity, especially in northern regions with poor air quality. Fresh air systems work by using specialized equipment to supply fresh air into a sealed room from one side and exhaust it to the outside from the other, creating a "fresh air flow field" within the room to meet the need for indoor ventilation. The implementation plan involves using high-pressure, high-flow-rate fans to forcefully supply air into the room from one side and exhaust it to the outside from the other side using specially designed exhaust fans, thus forcing the formation of a fresh air flow field within the system. Simultaneously, the incoming air is filtered, disinfected, sterilized, oxygenated, and preheated.

[0041] Fresh air systems consist of a fan, air intake ducts, and connectors. The fan, installed indoors, is connected to a series of exhaust vents via ducts. When the fan starts, stale indoor air is exhausted outdoors through the air intake vents installed indoors, creating several effective negative pressure zones indoors. Indoor air continuously flows towards these negative pressure zones and is exhausted outdoors, while fresh outdoor air is continuously replenished indoors through the air intake ducts, ensuring a constant supply of high-quality fresh air.

[0042] In existing technologies, for aesthetic reasons and to save installation time, the air intake duct is usually installed in the mounting hole, sharing the same mounting hole with the air conditioner's connecting hose. The mounting hole includes an air conditioner mounting hole space and an air intake duct mounting hole space. The air conditioner mounting hole space is used to install the existing air conditioner's connecting hose, while the air intake duct mounting hole space is used to install the air intake duct of the fresh air system. The air intake duct of the fresh air system and the air conditioner's connecting hose are isolated from each other, resulting in low integration and a large space occupation.

[0043] In addition, air conditioners are usually installed in houses first, and their connecting hoses are pre-installed in the mounting holes. This means that if users need to install fresh air equipment in the house, they need to remove the original mounting holes, which may damage the air conditioner's connecting hoses and cause the air conditioner to malfunction. Furthermore, even if the original mounting holes are removed, it is still unknown whether the remaining space in the mounting holes can meet the requirements of the fresh air equipment's air intake duct, making the subsequent installation more complicated.

[0044] The pipe installation structure and ventilation system provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0045] like Figures 1 to 4 As shown, a pipe installation structure according to some embodiments of this application includes: a ventilation pipe 1, a protective pipe 2, an installation pipe 3, and a water-absorbing layer 4; the installation pipe 3 is adapted to pass through an installation hole 6 in a wall 5, the protective pipe 2 covers the outer periphery of the installation pipe 3, a gap 19 exists between the protective pipe 2 and the installation pipe 3, and the water-absorbing layer 4 fills the gap 19; a cavity 7 is formed in the protective pipe 2, one end of the ventilation pipe 1 communicates with the cavity 7, and the other end is adapted to communicate with the indoor environment; a plurality of first through holes are provided on the side of the protective pipe 2 facing the gap 19, and the first through holes communicate with the gap 19 and the cavity 7; a plurality of second through holes are provided on the side of the installation pipe 3 facing the gap 19, a channel 20 is formed in the installation pipe 3, and the second through holes communicate with the gap 19 and the channel 20.

[0046] In the embodiments of this application, the installation pipe 3 is inserted into the installation hole 6 of the wall 5, the protective pipe 2 covers the outer periphery of the installation pipe 3, a gap 19 exists between the protective pipe 2 and the installation pipe 3, and the water-absorbing layer 4 fills the gap 19; a cavity 7 is formed in the protective pipe 2, one end of the ventilation pipe 1 is connected to the cavity 7, and the other end is adapted to be connected to the indoor environment; a plurality of first through holes are provided on the side of the protective pipe 2 facing the gap 19, and the first through holes connect the gap 19 and the cavity 7; a plurality of second through holes are provided on the side of the installation pipe 3 facing the gap 19, a channel 20 is formed in the installation pipe 3, and the second through holes connect the gap 19 and the channel 20. In this way, by covering the outer periphery of the installation pipe 3 with the protective pipe 2, a cavity 7 is formed in the protective pipe 2, and the ventilation pipe 1 is connected to the cavity 7, thereby improving the integration between the installation pipe 3 and the protective pipe 2; and since outdoor air enters from the channel 20, passes through the second through hole, the water-absorbing layer 4, the first through hole, the cavity 7 and the ventilation pipe 1 in sequence, and finally enters the room, the protective pipe 2 and the installation pipe 3 are not prone to aging, thereby improving the service life of the protective pipe 2 and the installation pipe 3.

[0047] In addition, since the air passes through the water-absorbing layer 4, the moisture in the air will be absorbed by the water-absorbing layer 4, thereby avoiding water leakage caused by the moisture in the air corroding the inner wall of the protective pipe 2 and the installation pipe 3, which would affect the use of the air conditioner and fresh air equipment.

[0048] In addition, by inserting the mounting pipe 3 into the mounting hole 6 of the wall 5, and covering the outer periphery of the mounting pipe 3, the mounting pipe 3 can also be protected by the protective pipe 2. At the same time, since the protective pipe 2 is set in the mounting hole 6, the total volume of air in contact with the mounting hole 6 is reduced, thereby avoiding the problem of moisture in the air corroding the wall 5 for a long time, which would lead to the wall 5 becoming soft and the wall 5 having reduced support.

[0049] In addition, because the moisture in the air is absorbed in advance by the water-absorbing layer 4, the humid outdoor air is turned into dry air and introduced into the room, thereby improving the comfort of the indoor air.

[0050] In addition, since the air intake duct of the fresh air equipment has been reserved in advance, it can effectively avoid damaging the original installation holes of the air conditioner, saving time and effort.

[0051] In some embodiments, such as Figure 1 As shown, an installation hole 6 is reserved on the wall 5. The diameter of the protective tube 2 can be slightly smaller than the diameter of the installation hole 6 so that the protective tube 2 can be inserted into the installation hole 6. The gap between the protective tube 2 and the installation hole 6 can be filled and fixed by an expanding medium such as a foaming agent to prevent the protective tube 2 from shifting in the installation hole 6 and falling off, thus affecting the use of the protective tube 2.

[0052] In some other embodiments, the channel 20 in the installation pipe 3 is used to pass through the connecting hose of the air conditioning equipment. The side of the channel 20 in the installation pipe 3 facing the indoor environment can be filled with an expanding medium such as a foaming agent. On the one hand, the connecting hose of the air conditioning equipment can be fixed in the channel 20 of the installation pipe 3; on the other hand, the foaming agent forms a seal between the connecting hose of the air conditioning equipment and the installation pipe 3, thereby preventing indoor air from flowing out from the gap between the connecting hose and the installation pipe 3 when the air conditioner is in use, thereby improving the user experience.

[0053] In other embodiments, a plurality of first through holes may be spaced apart, and a plurality of second through holes may also be spaced apart; the plurality of first through holes and the plurality of second through holes may also be arranged in a row at intervals.

[0054] Furthermore, a number of first through holes can correspond one-to-one with a number of second through holes; for example, the projection of the first through hole along the radial direction of the protective pipe 2 and the projection of the second through hole along the radial direction of the protective pipe 2 coincide. This helps to shorten the airflow path, thereby accelerating the airflow speed and increasing the indoor ventilation speed. Furthermore, the distance between the first through holes and the distance between the second through holes are equal; or the distance between each row of first through holes and the distance between each row of second through holes are equal.

[0055] Furthermore, the first through holes and the second through holes can be staggered, meaning that the projections of the first through holes along the radial direction of the protective tube 2 and the projections of the second through holes along the radial direction of the protective tube 2 do not coincide. This extends the airflow path, thereby improving the uniformity of airflow.

[0056] Of course, the number of first through holes and the number of second through holes can be arbitrarily set, that is, some first through holes and some second through holes correspond one-to-one, while other first through holes and other second through holes are staggered; the embodiments of this application do not impose any restrictions here.

[0057] In some embodiments, such as Figure 1 and Figure 2 As shown, the protective pipe 2 includes a first layer pipe 21 and a second layer pipe 22; the first layer pipe 21 and the second layer pipe 22 enclose each other to form a cavity 7; the first layer pipe 21 is located on the side close to the water-absorbing layer 4, and the second layer pipe 22 is sleeved on the outer periphery of the first layer pipe 21; a first through hole is located in the first layer pipe 21 and penetrates the first layer pipe 21.

[0058] Optionally, such as Figure 1 and Figure 2 As shown, it also includes an installation disc 8; the installation disc 8 is provided with a third through hole, the protective pipe 2 passes through the third through hole, at least part of the installation pipe 3 is connected to the protective pipe 2, and the ventilation pipe 1 passes through the installation disc 8 and communicates with the cavity 7.

[0059] In this embodiment, a third through hole is provided in the mounting disc 8, through which the protective tube 2 passes. At least a portion of the mounting tube 3 is connected to the protective tube 2, and the ventilation tube 1 passes through the mounting disc 8 and communicates with the cavity 7. In this way, the protective tube 2 can be fixed in the mounting disc 8 through the third through hole, thereby facilitating the fixing and assembly of the protective tube 2 during installation.

[0060] In some embodiments, such as Figure 2 As shown, the mounting disc 8 has a mounting hole 6 on the side closest to the indoor environment. The diameter of the third through hole in the mounting hole 6 is similar to that of the main hole, and slightly larger than the diameter of the protective tube 2. This allows the protective tube 2 to pass through the third through hole and extend into the mounting hole 6. Alternatively, the mounting disc 8 can also have the mounting hole 6 on the side closest to the outdoors, meaning that mounting discs 8 are installed on both sides of the mounting hole 6; the mounting tube 3 on the outdoor side is connected to the atmosphere.

[0061] In some other embodiments, such as Figure 2 As shown, a connecting portion 18 can also be provided in the gap 19 between the mounting tube 3 and the protective tube 2. The connecting portion 18 is used to connect the mounting tube 3 and the protective tube 2 so that the mounting tube 3 can be fixed in the mounting hole 6. For example, as shown... Figure 2 As shown, the connecting part 18 can be set on the side of the gap 19 near the mounting disc 8; this facilitates the installation between the mounting tube 3 and the protective tube 2.

[0062] In some other embodiments, the connecting part 18 can be a plastic connecting bracket, one end of which is bonded to the mounting tube 3 via an adhesive medium, and the other end is also bonded to the protective tube 2 via an adhesive medium. In this way, the protective tube 2 and the mounting tube 3 are connected by the connecting part 18, thereby improving the connection strength between the protective tube 2 and the mounting tube 3.

[0063] In addition, since the installation pipe 3 and the protective pipe 2 are connected into a whole by the connecting part 18, the strength of the entire pipeline installation structure is improved, thereby better supporting the hole wall of the installation hole 6 and preventing the connecting hose in the installation pipe 3 from being damaged due to the collapse of the installation hole 6.

[0064] In other embodiments, a clearance hole can be opened at the position corresponding to the mounting disc 8 and the ventilation pipe 1, and the ventilation pipe 1 passes through the clearance hole and communicates with the cavity 7 in the protective pipe 2; of course, a connecting pipe can also be directly set at the position corresponding to the mounting disc 8 and the ventilation pipe 1, with one end of the connecting pipe communicating with the cavity 7 and the other end communicating with the ventilation pipe 1. This application embodiment does not impose any limitations here.

[0065] In addition, the mounting disc 8 is made of metal materials, specifically iron, steel, copper or other metal materials with high strength and corrosion resistance; the mounting disc 8 can also be made of non-metal materials, specifically acrylonitrile-butadiene-styrene, polypropylene or other non-metal materials with high strength and corrosion resistance.

[0066] Optionally, such as Figure 2 As shown, the mounting disc 8 has a guide hole 9, and a fastener 10 is provided in the guide hole 9. The fastener 10 is suitable for connection with the wall 5.

[0067] In this embodiment, a guide hole 9 is provided in the mounting disc 8, and a fastener 10 is provided in the guide hole 9, which is connected to the wall 5. In this way, the mounting disc 8 can be connected to the wall 5 through the fastener 10.

[0068] In addition, by setting guide holes 9 in the mounting disc 8, the guide holes 9 can guide the fastener 10, preventing the fastener 10 from shifting its position when connected to the wall 5, which would increase the difficulty of installation and easily damage the wall 5 and the protective pipe 2.

[0069] In some embodiments, the fastener 10 can be a screw with threads in the guide hole 9 corresponding to those of a self-tapping screw. This allows the fastener 10 to be pre-fixed in the guide hole 9, facilitating the installation of the mounting disc 8. Furthermore, the fastener 10 can also engage with the threads in the guide hole 9 to enhance the connection strength between the fastener 10 and the mounting disc 8.

[0070] The specific installation process of the mounting disc 8 is as follows: First, drill holes around the mounting hole 6 in advance, and put the expansion parts that match the self-tapping screws into the drill holes; then rotate the self-tapping screws so that the self-tapping screws extend into the expansion parts along the direction of the guide hole 9, thereby completing the connection between the mounting disc 8 and the wall 5.

[0071] In some other embodiments, a first knob 17 can be provided at the end of the fastener 10 facing away from the wall 5. The first knob 17 is connected to the fastener 10, and a gasket 11 is provided between the first knob 17 and the mounting disc 8. In this way, the user can directly drill the fastener 10 into the pre-set hole in the wall 5 through the first knob 17, thereby achieving the effect of installing the mounting disc 8 without the aid of any equipment.

[0072] In addition, since a gasket 11 is provided between the first knob 17 and the mounting disk 8, the first knob 17 contacts the gasket 11 first during rotation, thereby preventing the first knob 17 from being over-rotated and damaging the mounting disk 8.

[0073] In other embodiments, a plurality of threads may be provided on the circumferential surface of the first knob 17, with the threads spaced apart. In this way, when the user rotates the first knob 17, the friction between the user and the first knob 17 is increased by the threads, thereby making it easier for the user to rotate the first knob 17.

[0074] It should be noted that the gasket 11 can be bonded to the mounting disc 8 using adhesive or other materials, or it can be fixed to the mounting disc 8 using other adhesive materials. This embodiment of the application does not impose any limitations on this. Of course, the gasket 11 can be made of soft materials such as plastic and rubber.

[0075] Optionally, such as Figure 2 As shown, there are multiple fasteners 10; the multiple fasteners 10 are spaced apart along the circumference of the mounting disk 8.

[0076] In this embodiment, multiple fasteners 10 are spaced apart circumferentially along the mounting disc 8. This allows the mounting disc 8 to be connected to the wall 5 via the multiple fasteners 10, thereby increasing the connection strength between the mounting disc 8 and the wall 5.

[0077] For example, such as Figure 1 As shown, a fastener 10 can be installed on each of the top, bottom, left, and right sides of the mounting disc 8, with equal spacing between adjacent fasteners 10. This ensures that the mounting disc 8 is connected to the wall 5 by fasteners 10 in all directions, resulting in more even force distribution on the mounting disc 8.

[0078] In some embodiments, multiple rings of fasteners 10 may be provided around the mounting disc 8, with the same spacing between each ring of fasteners 10, thereby further improving the connection strength between the mounting disc 8 and the wall 5.

[0079] For example, two rings of fasteners 10 can be provided. The first ring of fasteners 10 is provided on the side of the mounting disc 8 near the mounting hole 6, and the second ring of fasteners 10 is provided on the side of the first ring of fasteners 10 away from the mounting hole 6. The second ring of fasteners 10 corresponds one-to-one with the first ring of fasteners 10, that is, the line connecting the fasteners 10 in the second ring to the center of the mounting disc 8 coincides with the line connecting the fasteners 10 in the first ring to the center of the mounting disc 8.

[0080] Optionally, a sealing layer 12 is provided between the mounting disc 8 and the wall 5, the sealing layer 12 being used for sealing between the mounting disc 8 and the wall 5.

[0081] In this embodiment, a sealing layer 12 is provided between the mounting disc 8 and the wall 5. This seals the mounting disc 8 and the wall 5, preventing moisture from the indoor air from entering the mounting pipe 3 and damaging the connecting hose.

[0082] In addition, the sealing layer 12 can also act as a buffer layer to prevent the mounting disc 8 from being damaged due to excessive contact with the wall 5 during installation.

[0083] In some embodiments, the sealing layer 12 may be made of materials with good compressibility, resilience and deformation properties, such as nitrile rubber, neoprene rubber, natural rubber, silicone rubber, EPDM rubber, polyurethane rubber and acrylate rubber.

[0084] In some embodiments, such as Figure 2 As shown, the shape of the sealing layer 12 is the same as the shape of the mounting disc 8. This increases the contact area between the mounting disc 8 and the wall 5, thereby improving the sealing performance between the mounting disc 8 and the wall 5.

[0085] Optionally, such as Figure 3 As shown, the water-absorbing layer 4 is a porous water-absorbing material layer.

[0086] In the embodiment of the application, the water-absorbing layer 4 is made of a porous water-absorbing material layer. In this way, moisture in the air entering from the channel 20 in the installation pipe 3 can be absorbed by the porous water-absorbing material layer, thereby preventing moisture from corroding the protective pipe 2.

[0087] In some embodiments, the porous absorbent material layer is made of an absorbent material:

[0088] For example, absorbent materials may include superabsorbent polymers (SAPs); SAP is a novel functional polymer material. It possesses a high absorbency, capable of absorbing hundreds to thousands of times its own weight in water, and exhibits excellent water retention. Once it absorbs water and swells into a hydrogel, it is difficult to separate the water even under pressure. Superabsorbent polymers are functional polymer materials with numerous hydrophilic groups, characterized by high liquid absorption capacity, high liquid absorption rate, and high liquid retention capacity.

[0089] For example, absorbent materials may also include silica gel; silica gel is a highly active adsorbent material that can be used as a desiccant and is reusable. Silica gel is a porous material with varying particle sizes, formed by the appropriate dehydration of silica gel mSiO2·nH2O. It has an open porous structure, a large specific surface area (surface area per unit mass), and can adsorb many substances, making it an excellent desiccant, adsorbent, and catalyst carrier. The adsorption of silica gel is primarily physical adsorption, and it can be regenerated and reused repeatedly.

[0090] Furthermore, silica gel can include color-changing silica gel. Color-changing silica gel has a strong adsorption capacity for water vapor in the air. It is a type of silica gel containing a chemical indicator that changes color according to changes in humidity. Its properties are primarily determined by the silica gel and the chemical indicator. The main use of color-changing silica gel is humidity indication. When the humidity is low, the silica gel appears blue or pale yellow; when the humidity is high, it turns pink or dark yellow. This color change can alert users whether measures need to be taken to protect items from moisture damage.

[0091] In some embodiments, the method for preparing color-changing silica gel involves mixing silica gel with a suitable chemical indicator, and then reacting it by heating or other methods to generate color-changing silica gel particles. Specifically, the color-changing silica gel is prepared by using microporous silica gel as a carrier and binding cobalt chloride onto the surface of the internal pores of the color-changing silicone rubber through certain processing steps. Commonly used chemical indicators, besides cobalt chloride, include cadmium bromide and other chemicals, all of which can react with silica gel to cause color changes.

[0092] Optionally, the porosity of the porous absorbent material layer is 30%-80%.

[0093] In the embodiments of this application, by setting the porosity of the porous absorbent material layer, on the one hand, air can flow from the channel 20 of the installation pipe 3 to the cavity 7 of the protective pipe 2, and on the other hand, the strength of the porous absorbent material layer can be guaranteed, thereby providing support between the installation pipe 3 and the protective pipe 2.

[0094] For example, the porosity of the porous absorbent material layer can be set to any value or a range between any two values, such as 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%.

[0095] In this embodiment, the porosity of the porous absorbent material layer can be measured using the drainage method, which specifically includes: placing the porous absorbent material layer in a container of known volume, completely immersing the porous absorbent material layer in water, and then measuring the volume of the drained water to obtain the volume of the solid structure of the porous absorbent material layer excluding the voids. Finally, the porosity of the porous absorbent material layer can be calculated.

[0096] In some embodiments, the porous absorbent material layer can adopt a regular porous structure or an irregular porous structure. For example, the porosity of an irregular porous structure can be between 30% and 60%; exemplaryly, the porosity of an irregular porous structure can be set to any value or a range between any two values ​​such as 30%, 35%, 40%, 45%, 50%, 55%, 60%.

[0097] The porosity of a regular porous structure can be between 50% and 80%. For example, the porosity of a regular porous structure can be set to any value or a range between any two values, such as 50%, 55%, 60%, 65%, 70%, 75%, 80%.

[0098] Optionally, the pore size of the porous absorbent material layer is 1mm-8mm.

[0099] In the embodiments of this application, by setting the size of the pores in the porous absorbent material layer, on the one hand, air can flow freely from the channel 20 of the installation tube 3 to the cavity 7 of the protective tube 2, and on the other hand, the strength of the porous absorbent material layer can be guaranteed, thereby providing support between the installation tube 3 and the protective tube 2.

[0100] It should be noted that pore size refers to the shape and size of the pores in a porous solid. A pore is actually highly irregular, but it is usually considered to be circular, and its size is expressed by its radius.

[0101] The pore size measurement method is as follows: An accurately weighed layer of pretreated porous absorbent material is placed in the sample tube. The tube is first degassed under vacuum, and then the entire system is brought to the required vacuum level. The sample tube is then immersed in a liquid nitrogen bath and filled with a known amount of gas. The porous absorbent material layer adsorbs the gas, causing a pressure drop. After adsorption equilibrium is reached, the equilibrium pressure of the gas is measured, and the adsorption amount can be calculated based on the pressure change before and after adsorption. The amount of adsorbate gas is gradually increased into the system to change the pressure, and the above operation is repeated to test the adsorption-desorption isotherms. Then, a theoretical model is used to equivalently calculate the specific surface area, pore volume, and pore size distribution of the sample. Common adsorbates include nitrogen, argon, carbon dioxide, and krypton.

[0102] For example, the pore size of the porous absorbent material layer can be set to any value or a range between any two values, such as 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm.

[0103] In some embodiments, the porous absorbent material layer can adopt a regular porous structure or an irregular porous structure. For example, the pore size of the irregular porous structure can be between 5mm and 8mm; exemplaryly, the pore size of the irregular porous structure can be set to any value or a range between any two values ​​such as 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm.

[0104] The pore size of a regular porous structure can be between 1mm and 4mm. For example, the pore size of an irregular porous structure can be set to any value or a range between any two values, such as 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm.

[0105] In some embodiments, the compression amount of the porous absorbent material layer can also be set. For example, the compression amount of the porous absorbent material layer can be less than 30%. Here, compression amount refers to the percentage of the volume of the porous structure after compression to the volume of the porous structure before compression.

[0106] Optionally, such as Figure 4 As shown, it also includes two fixing components 13; the two fixing components 13 are arranged opposite to each other on the mounting disc 8, and a clamping space is formed between the two fixing components 13, in which the ventilation pipe 1 is clamped.

[0107] In this embodiment, two fixing components 13 are arranged opposite each other on the mounting disk 8, forming a clamping space between them, in which the ventilation duct 1 is clamped. This allows the ventilation duct 1 to be fixed to the mounting disk 8 by the two fixing components 13, improving the connection strength between the ventilation duct 1 and the mounting disk 8. Furthermore, by adjusting the size of the clamping space, ventilation ducts 1 of different diameters can be accommodated, thereby adapting to different types of fresh air equipment.

[0108] In some embodiments, such as Figure 2 As shown, it also includes a connection port 15, one end of which is connected to the ventilation duct 1, and the other end is connected to the fresh air equipment. This allows the fresh air equipment to be connected to the ventilation duct 1 through the connection port 15, thereby providing an air source for the fresh air equipment.

[0109] In some embodiments, such as Figure 2 As shown, the ventilation duct 1 is L-shaped. The L-shaped ventilation duct 1 includes a first sub-ventilation duct and a second sub-ventilation duct that are interconnected. One end of the first sub-ventilation duct passes through the mounting disc 8 and connects to the cavity 7 in the protective duct 2. The other end of the first sub-ventilation duct connects to one end of the second sub-ventilation duct, and the other end of the second sub-ventilation duct connects to the fresh air equipment. In this way, by setting the ventilation duct 1 in an L-shape, the connection between the second sub-ventilation duct and the fresh air equipment is facilitated.

[0110] In some other embodiments, the fixing component 13 may include a pipe support, two connecting brackets, and several bolts; the pipe support is divided into a left half pipe support and a right half pipe support; the left half pipe support and the right half pipe support are arranged in a semi-circular arc; the clamping space is formed between the left half pipe support and the right half pipe; the left half pipe support and the right half pipe support are located on both sides of the first sub-ventilation pipe; the left half pipe support and the right half pipe support are provided with through holes; bolts pass through the through holes and are connected with nuts, thereby fixing the left half pipe support and the right half pipe to the first sub-ventilation pipe.

[0111] In addition, one end of one of the connecting brackets is connected to the left half of the pipe support, and the other end is connected to the mounting disc 8; one end of the other connecting bracket is connected to the right half of the pipe support, and the other end is connected to the mounting disc 8; thus, by setting one connecting bracket between the left half of the pipe support and the mounting disc 8, and setting another connecting bracket between the right half of the pipe support and the mounting disc 8, the pipe support and the mounting disc 8 can be connected together, thereby fixing the first sub-ventilation pipe to the mounting disc 8.

[0112] It should be noted that pipe supports are structural components used to support overhead pipes. Pipe supports are classified into fixed supports, sliding supports, guide supports, and rolling supports. Among them, fixed supports must not have relative displacement with the pipe, and the deformation of the fixed pipe support under stress is much smaller than the deformation value of the pipe compensator; therefore, fixed supports need sufficient rigidity.

[0113] Optionally, such as Figure 4 As shown, the fixing component 13 includes a fixing seat 131, a support frame 132, and a push rod 133. The fixing seat 131 is mounted on the mounting disc 8, the support frame 132 is connected to the fixing seat 131, and the push rod 133 passes through the support frame 132. A clamping space is formed between the push rods 133 in the two fixing components 13. The push rod 133 can move relative to the support frame 132 to adjust the size of the clamping space.

[0114] In this embodiment, by placing a fixing base 131 on the mounting disc 8, connecting a support frame 132 to the fixing base 131, and inserting a push rod 133 through the support frame 132, a clamping space is formed between the push rods 133 of the two fixing components 13. The push rods 133 can move relative to the support frame 132 to adjust the size of the clamping space. Thus, by providing a fixing base 131 on the mounting disc 8, the space above the mounting disc 8 can be fully utilized, thereby improving the space utilization rate of the mounting disc 8.

[0115] Furthermore, since the push rod 133 is inserted into the support frame 132, the size of the clamping space can be adjusted by adjusting the distance between the two push rods 133, which is convenient and quick.

[0116] In some embodiments, the push rod 133 is a threaded rod, and the support frame 132 has a threaded hole that matches the threaded rod. The push rod 133 can move toward or away from the ventilation pipe 1 through the threaded hole. Furthermore, the fixing assembly 13 also includes a second knob 135, which is fixedly connected to the push rod 133. This allows the user to rotate the push rod 133 via the second knob 135, thereby facilitating the adjustment of the clamping space.

[0117] In other embodiments, such as Figure 4As shown, the side of the mounting base 131 closest to the mounting disk 8 is an arc surface, which matches the mounting disk 8. This facilitates the connection between the mounting base 131 and the mounting disk 8.

[0118] Furthermore, the curvature of the arc surface of the fixing base 131 is the same as the curvature of the mounting disk 8. In this way, by setting the curvature of the arc surface in the fixing base 131 to be the same as the curvature of the mounting disk 8, the contact area between the fixing base 131 and the mounting disk 8 is increased, thereby improving the connection strength between the fixing base 131 and the mounting disk 8.

[0119] For example, if the curvature of the arc surface of the fixing base 131 is 1, then the curvature of the mounting disk 8 is also 1; if the curvature of the arc surface of the fixing base 131 is 2, then the curvature of the mounting disk 8 is also 2.

[0120] In some other embodiments, a through hole is provided in the fixing seat 131, and a threaded hole is provided at the position corresponding to the through hole in the mounting disc 8, so that a screw can be threaded through the through hole in the fixing seat 131 and the threaded hole in the mounting disc 8; of course, a strong adhesive or other adhesive medium can also be applied to the side of the fixing seat 131 near the mounting disc 8, and the fixing seat 131 can be bonded to the mounting disc 8 by the strong adhesive or other adhesive medium.

[0121] In some embodiments, the support frame 132 has a connecting post on the side near the fixed base 131. The connecting post is connected to the support frame 132, and the connecting post has threads on its periphery. The fixed base 131 has a threaded hole at a position corresponding to the connecting post, and the connecting post is threadedly connected to the threaded hole. This facilitates the assembly and disassembly of the support frame 132 and the fixed base 131, thereby reducing the assembly difficulty and time between the support frame 132 and the fixed base 131.

[0122] It should be noted that, as Figure 4 As shown, ventilation duct 1 has an axis of symmetry in the vertical direction. Figure 4 The left and right fixing components 13 are symmetrically arranged along the axis of symmetry.

[0123] Optionally, such as Figure 2 and Figure 4 As shown, the fixing component 13 also includes a clamping block 134; one end of the clamping block 134 is connected to the push rod 133, and the ventilation pipe 1 has a groove 14 at a position corresponding to the clamping block 134, and the other end of the clamping block 134 is engaged in the groove 14.

[0124] In this embodiment, one end of the clamping block 134 is connected to the push rod 133, and the ventilation pipe 1 has a groove 14 at a position corresponding to the clamping block 134. The other end of the clamping block 134 is engaged in the groove 14. In this way, when fixing the ventilation pipe 1, the ventilation pipe 1 is clamped between the two clamping blocks 134 by the engagement between the clamping block 134 and the groove 14, thereby improving the connection strength between the clamping block 134 and the ventilation pipe 1.

[0125] In some embodiments, such as Figure 4 As shown, a groove 14 is provided on the outer wall of the ventilation duct 1, and a clamping block 134 is at least partially disposed in the groove 14, with the groove wall of the groove 14 and the clamping block 134 abutting against each other.

[0126] Optionally, such as Figure 4 As shown, the side of the clamping block 134 facing the groove 14 is set as an arc surface, and the bottom of the groove 14 is adapted to the arc surface.

[0127] In this embodiment, the clamping block 134 is made into an arc surface facing the groove 14, and the bottom of the groove 14 is adapted to the arc surface. This facilitates the contact between the clamping block 134 and the bottom of the groove 14.

[0128] Specifically, the clamping block 134 can be a rubber clamping block 134; in this way, when the clamping block 134 comes into contact with the ventilation pipe 1, the rubber clamping block 134 deforms, thereby protecting the ventilation pipe 1.

[0129] In some embodiments, a plurality of hemispherical protrusions are provided on the side of the clamping block 134 facing the ventilation pipe 1, and the plurality of hemispherical protrusions are spaced apart. In this way, when the clamping block 134 moves toward the ventilation pipe 1, the hemispherical protrusions can contact the bottom of the groove 14 first, so as to achieve a buffering effect.

[0130] In some embodiments, such as Figure 4 As shown, the ventilation pipe 1 has a certain wall thickness. Along the wall thickness direction of the ventilation pipe 1, the ventilation pipe 1 is provided with a groove 14 near the clamping block 134. The groove 14 has a slot opening and a slot bottom that are arranged opposite to each other. The slot opening is used to allow part of the clamping block 134 to enter the groove 14, and the slot bottom is used to abut against the arc surface of the clamping block 134.

[0131] Optionally, the curvature of the arc surface is the same as the curvature of the groove bottom.

[0132] In this embodiment, the curvature of the arc surface and the curvature of the groove bottom are set to be the same. This increases the contact area between the clamping block 134 and the ventilation pipe 1, thereby improving the connection strength between the clamping block 134 and the ventilation pipe 1.

[0133] It should be noted that the curvature of a curve is the rate of rotation of the tangent angle at a certain point on the curve with respect to the arc length. It is defined by differentiation and indicates the degree to which the curve deviates from a straight line. In other words, curvature represents the numerical value of the degree of curvature of the curve at a certain point.

[0134] For example, if the curvature of the arc surface of the clamping block 134 is 1, then the curvature of the bottom of the groove is also 1; if the curvature of the arc surface of the clamping block 134 is 2, then the curvature of the bottom of the groove is also 2.

[0135] Optionally, it also includes a corrosion-resistant layer 16; the corrosion-resistant layer 16 covers the circumferential outer surface of the protective tube 2.

[0136] In this embodiment, a corrosion-resistant layer 16 is applied to the circumferential outer surface of the protective tube 2. This prevents humid air in the mounting hole 6 from corroding the outer surface of the protective tube 2, thereby improving the service life of the protective tube 2.

[0137] In some embodiments, such as Figure 2 As shown, the length of the corrosion-resistant layer 16 is equal to the length of the protective tube 2. For example, the protective tube 2 extends from the indoor side of the mounting hole 6 to the outdoor side, and the corrosion-resistant layer 16 also extends from the indoor side of the mounting hole 6 to the outdoor side.

[0138] In some embodiments, when the protective tube 2 is made of metal, the corrosion-resistant layer 16 can be applied to the circumferential outer surface of the protective tube 2 in the form of a coating. For example, liquid coatings such as epoxy resin composite coatings or phenolic epoxy coatings can be applied to the circumferential outer surface of the protective tube 2 to form the corrosion-resistant layer 16. Alternatively, sacrificial anode cathodic protection can be used to protect the protective tube 2. For example, if the protective tube 2 is made of steel, a zinc plate can be welded to a portion of the steel surface. In this way, a chemical cell is formed between the zinc plate and the protective tube 2; since the reducing power of the zinc plate is higher than that of the steel protective tube 2, the zinc plate will act as the negative electrode and undergo an oxidation reaction, thus being consumed, while the steel protective tube 2, acting as the positive electrode, can avoid corrosion.

[0139] Optionally, this application provides a ventilation system including the duct installation structure and air conditioning equipment described in the above embodiments. The air conditioning equipment includes a connecting hose, an outdoor unit, and an indoor unit. The connecting hose is installed in the installation pipe 3, with one end of the connecting hose connected to the outdoor unit and the other end connected to the indoor unit.

[0140] In the embodiments of this application, the installation pipe 3 is inserted into the installation hole 6 of the wall 5, the protective pipe 2 covers the outer periphery of the installation pipe 3, a gap 19 exists between the protective pipe 2 and the installation pipe 3, and the water-absorbing layer 4 fills the gap 19; a cavity 7 is formed in the protective pipe 2, one end of the ventilation pipe 1 is connected to the cavity 7, and the other end is adapted to be connected to the indoor environment; a plurality of first through holes are provided on the side of the protective pipe 2 facing the gap 19, and the first through holes connect the gap 19 and the cavity 7; a plurality of second through holes are provided on the side of the installation pipe 3 facing the gap 19, a channel 20 is formed in the installation pipe 3, and the second through holes connect the gap 19 and the channel 20. In this way, outdoor air enters through channel 20, passes through the second through-hole, water-absorbing layer 4, first through-hole, cavity 7, and ventilation duct 1 in sequence, and finally enters the room. Since the air passes through the water-absorbing layer 4, the moisture in the air is absorbed, thus preventing water leakage from the protective pipe 2 and installation pipe 3 caused by moisture corrosion, which would affect the use of air conditioning and fresh air equipment. Furthermore, by inserting the installation pipe 3 through the installation hole 6 in the wall 5, the protective pipe 2 covers the outer periphery of the installation pipe 3. This creates a cavity 7 within the protective pipe 2, which is connected to the ventilation duct 1, thereby improving the integration between the installation pipe 3 and the protective pipe 2. And because outdoor air enters through channel 20, passes through the second through-hole, water-absorbing layer 4, first through-hole, cavity 7, and ventilation duct 1 in sequence, and finally enters the room, the protective pipe 2 and installation pipe 3 are less prone to aging, thus extending their service life.

[0141] In addition, since the air passes through the water-absorbing layer 4, the moisture in the air will be absorbed by the water-absorbing layer 4, thereby avoiding water leakage caused by the moisture in the air corroding the inner wall of the protective pipe 2 and the installation pipe 3, which would affect the use of the air conditioner and fresh air equipment.

[0142] In addition, by inserting the mounting pipe 3 into the mounting hole 6 of the wall 5, and covering the outer periphery of the mounting pipe 3, the mounting pipe 3 can also be protected by the protective pipe 2. At the same time, since the protective pipe 2 is set in the mounting hole 6, the total volume of air in contact with the mounting hole 6 is reduced, thereby avoiding the problem of moisture in the air corroding the wall 5 for a long time, which would lead to the wall 5 becoming soft and the wall 5 having reduced support.

[0143] In addition, because the moisture in the air is absorbed in advance by the water-absorbing layer 4, the humid outdoor air is turned into dry air and introduced into the room, thereby improving the comfort of the indoor air.

[0144] In addition, since the air intake duct of the fresh air equipment has been reserved in advance, it can effectively avoid damaging the original installation holes of the air conditioner, saving time and effort.

[0145] In addition, in this embodiment, a connecting hose is inserted into the installation pipe 3, with one end connected to the outdoor unit of the air conditioner and the other end connected to the indoor unit. This allows for the connection between the indoor and outdoor units. Furthermore, integrating the installation space of the connecting hose with the duct installation space of the fresh air equipment into a single duct installation structure improves the integration between the two, reduces the volume of the mounting hole 6, and makes the wall 5 more aesthetically pleasing.

[0146] Optionally, it also includes a fresh air system; the fresh air system is connected to the ventilation duct 1.

[0147] In this embodiment, the fresh air device is connected to the ventilation duct 1. This allows the fresh air device to absorb dry air from the ventilation duct 1, eliminating the need for additional drying of humid air and thus reducing the power consumption of the fresh air device, achieving energy saving and environmental protection.

[0148] The fresh air system includes a fan assembly, a switching component, a filter assembly, and a main body. The main body has an air inlet, a first air outlet, and a second air outlet. The filter assembly is located within the main body and positioned near the first air outlet. The fan assembly is located within the main body and is used to draw air in through the air inlet. The air inlet communicates with a connection port 15. The switching component is movably connected to the main body to open or close the second air outlet. When the second air outlet is closed, airflow flows along the air inlet, the filter assembly, and the first air outlet. When the second air outlet is open, airflow flows along the air inlet and the second air outlet.

[0149] In this way, when the air quality is good, the airflow entering from the inlet is discharged through the second outlet; when the air quality is poor, the airflow entering from the inlet is filtered by the filter assembly before being discharged through the first outlet. In other words, when the air quality is good, the airflow does not pass through the filter assembly, greatly reducing ventilation resistance, improving ventilation efficiency, and achieving efficient indoor air exchange; at the same time, it also reduces the burden on the filter assembly, extends its service life, and lowers user operating costs. When the air quality is poor, the airflow needs to pass through the filter assembly before being discharged through the first outlet, which also ensures the quality of the air discharged from the first outlet.

[0150] Therefore, the fresh air equipment provided in this embodiment can selectively use air filtration and purification functions, avoiding the waste caused by using filtration functions on air that does not need filtration and purification, thereby reducing the burden on the filter components and increasing the service life of the filter components, and reducing the user's operating costs.

[0151] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0152] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A pipe installation structure, characterized in that, include: Ventilation duct (1), protective duct (2), installation duct (3) and water-absorbing layer (4); The mounting tube (3) is adapted to be inserted into the mounting hole (6) of the wall (5), the protective tube (2) covers the outer periphery of the mounting tube (3), there is a gap (19) between the protective tube (2) and the mounting tube (3), and the absorbent layer (4) fills the gap (19); A cavity (7) is formed in the protective tube (2). One end of the ventilation tube (1) is connected to the cavity (7), and the other end is adapted to be connected to the indoor environment. The protective tube (2) is provided with a plurality of first through holes on the side facing the gap (19). The first through holes connect the gap (19) and the cavity (7). The mounting tube (3) is provided with a plurality of second through holes on the side facing the gap (19). A channel (20) is formed in the mounting tube (3). The second through holes connect the gap (19) and the channel (20). Wherein, the water-absorbing layer (4) is a porous water-absorbing material layer; the porosity of the porous water-absorbing material layer is 30%-80%; and / or, the pore size of the porous water-absorbing material layer is 1mm-8mm; The protective pipe (2) includes a first layer pipe (21) and a second layer pipe (22); the first layer pipe (21) and the second layer pipe (22) enclose the cavity (7); the first layer pipe (21) is located on the side close to the absorbent layer (4), and the second layer pipe (22) is sleeved on the outer periphery of the first layer pipe (21); the first through hole is located in the first layer pipe (21).

2. The pipe installation structure according to claim 1, characterized in that, It also includes the mounting disc (8); The mounting disc (8) is provided with a third through hole, the protective tube (2) passes through the third through hole, at least part of the mounting tube (3) is connected to the protective tube (2), and the ventilation tube (1) passes through the mounting disc (8) and communicates with the cavity (7).

3. The pipe installation structure according to claim 2, characterized in that, The mounting disc (8) is provided with a guide hole (9), and a fastener (10) is provided in the guide hole (9). The fastener (10) is adapted to be connected to the wall (5).

4. The pipe installation structure according to claim 3, characterized in that, The fasteners (10) are provided in multiples; the multiple fasteners (10) are arranged at circumferential intervals along the mounting disc (8).

5. The pipe installation structure according to claim 2, characterized in that, A sealing layer (12) is provided between the mounting disc (8) and the wall (5), the sealing layer (12) being used for sealing between the mounting disc (8) and the wall (5).

6. The pipe installation structure according to claim 2, characterized in that, It also includes two fixed components (13); Two fixing components (13) are disposed opposite to each other on the mounting disc (8), forming a clamping space between the two fixing components (13), and the ventilation pipe (1) is clamped in the clamping space.

7. The pipe installation structure according to claim 6, characterized in that, The fixing component (13) includes a fixing base (131), a support frame (132), and a push rod (133). The fixed base (131) is disposed on the mounting disc (8), the support frame (132) is connected to the fixed base (131), the push rod (133) passes through the support frame (132), the clamping space is formed between the push rods (133) in the two fixed components (13), and the push rod (133) can move relative to the support frame (132) to adjust the size of the clamping space.

8. The pipe installation structure according to claim 7, characterized in that, The fixing component (13) also includes a clamping block (134). One end of the clamping block (134) is connected to the push rod (133), and the ventilation pipe (1) has a groove (14) at a position corresponding to the clamping block (134). The other end of the clamping block (134) is engaged in the groove (14).

9. The pipe installation structure according to claim 8, characterized in that, The clamping block is set as an arc surface on the side facing the groove (14) (134), and the bottom of the groove (14) is adapted to the arc surface.

10. The pipe installation structure according to claim 9, characterized in that, The curvature of the arc surface is the same as the curvature of the groove bottom.

11. The pipe installation structure according to any one of claims 1-10, characterized in that, It also includes a corrosion-resistant layer (16); the corrosion-resistant layer (16) covers the circumferential outer surface of the protective tube (2).

12. A ventilation system, characterized in that, Including the pipe installation structure and air conditioning equipment as described in any one of claims 1-11, wherein the air conditioning equipment includes: a connecting hose, an outdoor air conditioning unit, and an indoor air conditioning unit; The connecting hose is inserted into the installation pipe (3), with one end of the connecting hose connected to the outdoor unit of the air conditioner and the other end connected to the indoor unit of the air conditioner.

13. The ventilation system according to claim 12, characterized in that, It also includes a fresh air system; the fresh air system is connected to the ventilation duct (1).

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