Pipeline mounting structure and ventilation system

Abstract

The invention discloses a pipeline installation structure and a ventilation system. The pipeline installation structure comprises a ventilation pipe, a protection pipe, an installation pipe and a water absorption layer. The mounting pipe is suitable for being arranged in a mounting hole of a wall in a penetrating mode, the periphery of the mounting pipe is wrapped with the protection pipe, a gap exists between the protection pipe and the mounting pipe, and at least part of the gap is filled with the water absorption layer; a cavity is formed in the protection pipe, one end of the ventilation pipe communicates with the cavity, the other end of the ventilation pipe is suitable for communicating with the indoor environment, and a plurality of first through holes are formed in the side, facing the gap, of the protection pipe and communicate with the gap and the cavity. A plurality of second through holes are formed in the side, facing the gap, of the mounting pipe, a channel is formed in the mounting pipe, and the second through holes communicate with the gap and the channel. Therefore, the periphery of the mounting pipe is coated with the protection pipe, the cavity is formed in the protection pipe, and the ventilation pipe is communicated with the cavity, so that the integration degree between the mounting pipe and the protection pipe is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of pipeline installation, and specifically relates to a pipeline installation structure and a ventilation system. Background Art

[0002] Due to the application of air conditioning systems, the use of various synthetic building materials, the popularization of modern office equipment, the improvement of building airtightness, and the reduction of fresh air volume as much as possible for energy saving, the concentration of indoor PM2.5, toxic gases and other pollutants has continued to increase. Fresh air equipment can purify outdoor air and then inhale it into the room. Fresh air equipment consists of ventilation fans, pipes and other accessories that can ventilate and purify the air. The ventilation fans filter and purify the fresh air outside and transport it to the room through pipes.

[0003] In the related art, in order to reduce the number of holes opened on the wall, the existing air conditioning installation holes are usually used to install the pipes of the fresh air device. However, since the connecting hose of the air conditioner and the pipes of the fresh air device are installed in the same installation hole, a large space is occupied, and the connecting hose and the pipes of the fresh air device are prone to aging. Summary of the invention

[0004] The present application aims to provide a pipeline installation structure and a ventilation system, which can solve the problem that the connecting hoses of the air conditioner and the pipelines of the fresh air equipment occupy a large space and are prone to aging.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In the first aspect, an embodiment of the present application proposes a pipe installation structure, comprising: a ventilation pipe, a protective pipe, a mounting pipe and a water absorption layer; the mounting pipe is suitable for being inserted into a mounting hole in a wall, the protective pipe is covered on the outer circumference of the mounting pipe, there is a gap between the protective pipe and the mounting pipe, and the water absorption layer is filled in the gap; a cavity is formed in the protective pipe, one end of the ventilation pipe is connected to the cavity, and the other end is suitable for being connected to the indoor environment, a plurality of first through holes are provided on a side of the protective pipe facing the gap, and the first through holes connect the gap and the cavity; a plurality of second through holes are provided on a side of the mounting pipe facing the gap, a channel is formed in the mounting pipe, and the second through holes connect the gap and the channel.

[0007] Optionally, it also includes a mounting disc; the mounting disc is provided with a third through hole, the protective tube is passed through the third through hole, at least part of the mounting tube is connected to the protective tube, and the ventilation tube is passed through the mounting disc and communicated with the cavity.

[0008] Optionally, a guide hole is provided in the mounting disc, a fastener is provided in the guide hole, and the fastener is suitable for connecting to a wall.

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

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

[0011] Optionally, the water-absorbing layer is a porous water-absorbing material layer.

[0012] Optionally, 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.

[0013] Optionally, two fixing components are further included; the two fixing components are arranged opposite to each other on the mounting disc, a clamping space is formed between the two fixing components, and the ventilation pipe is clamped in the clamping space.

[0014] Optionally, the fixing assembly includes a fixing seat, a support frame and a push rod; the fixing seat is arranged on the mounting disc, the support frame is connected to the fixing seat, the push rod is passed through the support frame, and the clamping space is formed between the push rods in the two fixing assemblies, and the push rod can move relative to the support frame to adjust the size of the clamping space.

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

[0016] Optionally, the clamping block and the bottom of the groove are both arranged in arc shape, and the clamping block abuts against the bottom of the groove; the curvature of the side of the clamping block close to the groove is the same as the curvature of the bottom of the groove.

[0017] Optionally, a side of the clamping block facing the groove is set as an arc surface, 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, a corrosion-resistant layer is also included; the corrosion-resistant layer covers the circumferential outer surface of the protective tube.

[0020] In a second aspect, an embodiment of the present application provides a ventilation system, including the pipeline installation structure and air conditioning equipment described in the above embodiment, the air conditioning equipment including: a connecting hose, an air conditioning outdoor unit and an air conditioning indoor unit;

[0021] The connecting hose is inserted into the mounting tube, one end of the connecting hose is communicated with the outdoor unit of the air conditioner, and the other end of the connecting hose is communicated with the indoor unit of the air conditioner.

[0022] Optionally, fresh air equipment is also included; the fresh air equipment is connected to the ventilation duct.

[0023] In the embodiment of the present application, the installation tube is inserted into the installation hole of the wall, the protective tube is wrapped around the outer periphery of the installation tube, there is a gap between the protective tube and the installation tube, and the water absorption layer is filled in at least part of the gap; a cavity is formed in the protective tube, one end of the ventilation tube is connected to the cavity, and the other end is suitable for connecting with the indoor environment, and a plurality of first through holes are provided on the side of the protective tube facing the gap, and the first through holes connect the gap and the cavity; a plurality of second through holes are provided on the side of the installation tube facing the gap, and a channel is formed in the installation tube, and the second through holes connect the gap and the channel. In this way, by wrapping the protective tube around the outer periphery of the installation tube, a cavity is formed in the protective tube, and the ventilation tube is connected to the cavity, thereby improving the integration between the installation tube and the protective tube; and because the outdoor air enters from the channel, passes through the second through hole, the water absorption layer, the first through hole, the cavity and the ventilation tube in sequence, and finally enters the room, the protective tube and the installation tube are not easy to age, thereby improving the practical life of the protective tube and the installation tube.

[0024] In addition, as the air passes through the water absorption layer, the moisture in the air will be absorbed by the water absorption layer, thereby preventing the moisture in the air from corroding the inner walls of the protective pipe and the installation pipe, causing leakage of the protective pipe and the installation pipe, thereby affecting the use of air conditioning and fresh air equipment.

[0025] In addition, by passing the mounting tube through the mounting hole of the wall, the protective tube is covered on the outer circumference of the mounting tube, so that the mounting tube can also be protected by the protective tube; at the same time, since the protective tube is arranged in the mounting hole, the total volume of air in contact with the mounting hole is reduced, thereby avoiding the long-term erosion of the wall by moisture in the air, resulting in the loosening of the wall and reduced wall supporting force.

[0026] In addition, since the moisture in the air is absorbed by the water absorption layer in advance, the humid air outside is converted into dry air and passed into the room, thereby improving the comfort of the indoor air.

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

[0028] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0030] Figure 1 is a front view of a pipeline installation structure according to an embodiment of the present application;

[0031] Figure 2 is a side view of a pipeline installation structure according to an embodiment of the present application;

[0032] Figure 3 is a schematic diagram of a water absorbing layer according to an embodiment of the present application;

[0033] Figure 4 It is a schematic diagram of the connection between the fixing assembly and the ventilation pipe according to an embodiment of the present application.

[0034] Reference numerals:

[0035] 1-ventilation pipe; 2-protection pipe; 3-mounting pipe; 4-water absorption layer; 5-wall; 6-mounting hole; 7-cavity; 8-mounting disc; 9-guide hole; 10-fastener; 11-gasket; 12-sealing layer; 13-fixing assembly; 131-fixing seat; 132-support frame; 133-push rod; 134-clamping block; 135-second knob; 14-groove; 15-connecting port; 16-corrosion-resistant layer; 17-first knob; 18-connecting part; 19-gap; 20-channel; 21-first layer of pipe; 22-second layer of pipe. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0037] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] As people's requirements for indoor air quality are getting higher and higher, simple air conditioning systems can no longer meet people's needs for fresh air. Therefore, fresh air systems have become more and more popular, especially in northern areas with poor air quality. Fresh air equipment uses special equipment to send fresh air to the room on one side of the closed room, and then exhausts it to the outside from the other side by special equipment. A "fresh air flow field" will be formed in the room, thereby meeting the needs of indoor fresh air ventilation. The implementation plan is: use high wind pressure, large flow fans, rely on mechanical force to send air to the room from one side, and use a specially designed exhaust fan to exhaust it to the outside from the other side to force the formation of a fresh air flow field in the system. While sending air, the air entering the room is filtered, disinfected, sterilized, oxygenated, and preheated.

[0041] Fresh air equipment consists of a fan, air inlet ducts and joints. The fan installed indoors is connected to a series of exhaust vents through ducts. When the fan is started, the turbid air in the room is discharged to the outside through the air inlet installed indoors, forming several effective negative pressure areas indoors. The indoor air continuously flows to the negative pressure areas and is discharged outdoors. The outdoor fresh air is continuously replenished into the room through the air inlet duct, so that you can always breathe high-quality fresh air.

[0042] In the prior art, for the sake of aesthetics and saving installation time, the air inlet duct is usually set in the installation hole, and shares the same installation hole with the connecting hose of the air conditioner. The installation hole includes the air conditioner installation hole space and the air inlet duct installation hole space, wherein the air conditioner installation hole space is used to install the connecting hose of the existing air conditioner, and the air inlet duct installation hole space is used to install the air inlet duct of the fresh air device. The air inlet duct of the fresh air device and the connecting hose of the air conditioner are isolated from each other, resulting in low integration and large occupied space.

[0043] In addition, generally speaking, the air conditioner is first installed in the house, and the connecting hose of the air conditioner is pre-installed in the installation hole. As a result, if the user needs to install fresh air equipment in the house, the original installation hole needs to be removed, which may damage the connecting hose of the air conditioner and cause the air conditioner to fail to cool normally. In addition, even if the original installation hole is removed normally, it is still unknown whether the remaining space in the installation hole can meet the requirements of the air inlet duct of the fresh air equipment, making the subsequent installation more complicated.

[0044] The pipeline installation structure and ventilation system provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in combination with the accompanying drawings.

[0045] like Figures 1 to 4 As shown, according to some embodiments of the present application, the pipeline installation structure includes: a ventilation pipe 1, a protective pipe 2, a mounting pipe 3 and a water absorbing layer 4; the mounting pipe 3 is suitable for passing through the mounting hole 6 of the wall 5, the protective pipe 2 is covered on the outer periphery of the mounting pipe 3, there is a gap 19 between the protective pipe 2 and the mounting pipe 3, and the water absorbing layer 4 is filled in the gap 19; a cavity 7 is formed in the protective pipe 2, one end of the ventilation pipe 1 is connected with the cavity 7, and the other end is suitable for connecting with the indoor environment, and 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 mounting pipe 3 facing the gap 19, and a channel 20 is formed in the mounting pipe 3, and the second through holes connect the gap 19 and the channel 20.

[0046] In an embodiment of the present application, the mounting tube 3 is passed through the mounting hole 6 of the wall 5, the protective tube 2 is covered on the outer periphery of the mounting tube 3, a gap 19 is present between the protective tube 2 and the mounting tube 3, and the water-absorbing layer 4 is filled in 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 suitable for connecting to the indoor environment, and a plurality of first through holes are provided on the side of the protective tube 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 mounting tube 3 facing the gap 19, and a channel 20 is formed in the mounting tube 3, and the second through holes connect the gap 19 and the channel 20. In this way, by wrapping the protective tube 2 around the outer periphery of the mounting tube 3, a cavity 7 is formed in the protective tube 2, and the ventilation tube 1 is connected to the cavity 7, thereby improving the integration between the mounting tube 3 and the protective tube 2; and because the outdoor air enters from the channel 20, passes through the second through hole, the water absorption layer 4, the first through hole, the cavity 7 and the ventilation tube 1 in sequence, and finally enters the room, the protective tube 2 and the mounting tube 3 are not easy to age, thereby improving the practical life of the protective tube 2 and the mounting tube 3.

[0047] In addition, since the air passes through the water absorption layer 4, the moisture in the air will be absorbed by the water absorption layer 4, thereby preventing the moisture in the air from corroding the inner walls of the protection tube 2 and the installation tube 3, causing leakage of the protection tube 2 and the installation tube 3, thereby affecting the use of air conditioning and fresh air equipment.

[0048] In addition, by passing the mounting tube 3 through the mounting hole 6 of the wall 5, the protective tube 2 is covered on the outer circumference of the mounting tube 3, so that the mounting tube 3 can also be protected by the protective tube 2; at the same time, since the protective tube 2 is arranged in the mounting hole 6, the total volume of air in contact with the mounting hole 6 is reduced, thereby preventing the moisture in the air from corroding the wall 5 for a long time, resulting in the problem of the wall 5 becoming soft and the supporting force of the wall 5 being reduced.

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

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

[0051] In some embodiments, Figure 1 As shown, a mounting hole 6 is reserved on the wall 5, and the diameter of the protective tube 2 can be set to be slightly smaller than the diameter of the mounting hole 6, so that the protective tube 2 can be inserted into the mounting hole 6; the gap between the protective tube 2 and the mounting hole 6 can be filled and fixed by an expansion medium such as a foaming agent to prevent the protective tube 2 from being displaced in the mounting hole 6 and causing the protective tube 2 to fall off, thereby affecting the use of the protective tube 2.

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

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

[0054] Furthermore, a plurality of first through holes may correspond to a plurality of second through holes one by one; for example, the projection of the first through hole along the radial direction of the protection tube 2 coincides with the projection of the second through hole along the radial direction of the protection tube 2. In this way, it is helpful to reduce the air flow path, thereby speeding up the air flow speed, thereby increasing the indoor air exchange speed. Furthermore, the distance between the first through holes is equal to the distance between the second through holes; or the distance between each row of first through holes is equal to the distance between each row of second through holes.

[0055] In addition, the plurality of first through holes can be staggered with the plurality of second through holes, that is, the projections of the first through holes along the radial direction of the protection tube 2 do not overlap with the projections of the second through holes along the radial direction of the protection tube 2. In this way, the air flow path can be extended, thereby improving the uniformity of air flow.

[0056] Of course, a plurality of first through holes and a plurality of second through holes may be arranged arbitrarily, that is, some of the first through holes and some of the second through holes correspond one to one, and another portion of the first through holes and another portion of the second through holes are staggered with each other; the embodiment of the present application does not limit this.

[0057] In some embodiments, Figure 1 and Figure 2 As shown, the protective tube 2 includes a first layer of pipes 21 and a second layer of pipes 22; the first layer of pipes 21 and the second layer of pipes 22 enclose a cavity 7; the first layer of pipes 21 is arranged on a side close to the water absorbing layer 4, and the second layer of pipes 22 is sleeved on the outer periphery of the first layer of pipes 21; a first through hole is arranged in the first layer of pipes 21, and the first through hole penetrates the first layer of pipes 21.

[0058] Alternatively, if Figure 1 and Figure 2 As shown, it also includes a mounting disc 8; the mounting disc 8 is provided with a third through hole, the protective tube 2 is passed 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 is passed through the mounting disc 8 and communicated with the cavity 7.

[0059] In the embodiment of the present application, the third through hole is provided in the mounting disc 8, the protection tube 2 is passed through the third through hole, at least part of the mounting tube 3 is connected to the protection tube 2, and the ventilation tube 1 is passed through the mounting disc 8 and communicates with the cavity 7. In this way, the protection tube 2 can be fixed in the mounting disc 8 through the third through hole, so that the fixing and assembly of the protection tube 2 are facilitated during installation.

[0060] In some embodiments, Figure 2 As shown, the mounting disc 8 is arranged on the side of the mounting hole 6 close to the indoor environment, the diameter of the third through hole in the mounting hole 6 is close to the diameter of the mounting hole 6, and the diameter of the third through hole in the mounting hole 6 is slightly larger than the diameter of the protection tube 2. In this way, it is convenient for the protection tube 2 to pass through the third through hole and penetrate into the mounting hole 6. In addition, the mounting disc 8 can also be arranged on the side of the mounting hole 6 close to the outdoors, that is, the mounting disc 8 is arranged 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, Figure 2 As shown, a connecting portion 18 may be further provided in the gap 19 between the mounting tube 3 and the protection tube 2, and the connecting portion 18 is used to connect the mounting tube 3 and the protection tube 2 so as to facilitate fixing the mounting tube 3 in the mounting hole 6. Figure 2 As shown, the connection portion 18 can be arranged on a side of the gap 19 close to the mounting disc 8 ; in this way, the installation between the mounting tube 3 and the protective tube 2 is facilitated.

[0062] In some other embodiments, the connection portion 18 may be a plastic connection bracket, one end of which is bonded to the mounting tube 3 via an adhesive medium, and the other end of which is also bonded to the protection tube 2 via an adhesive medium. In this way, the protection tube 2 and the mounting tube 3 are connected via the connection portion 18, so as to improve the connection strength between the protection tube 2 and the mounting tube 3;

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

[0064] In other embodiments, an avoidance 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 avoidance hole to communicate 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, one end of the connecting pipe is connected to the cavity 7, and the other end is connected to the ventilation pipe 1, and the embodiments of the present application are not limited here.

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

[0066] Alternatively, if Figure 2 As shown, a guide hole 9 is provided in the installation disc 8 , and a fastener 10 is provided in the guide hole 9 . The fastener 10 is suitable for connecting with the wall 5 .

[0067] In the embodiment of the present application, a guide hole 9 is provided in the mounting disc 8, a fastener 10 is provided in the guide hole 9, and the fastener 10 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 a guide hole 9 in the installation disc 8, the guide hole 9 can guide the fastener 10 to avoid the position movement of the fastener 10 when connected to the wall 5, which will increase the difficulty of installation and easily cause damage to the wall 5 and the protective tube 2.

[0069] In some embodiments, the fastener 10 can be configured as a screw, and a thread corresponding to the self-tapping screw is provided in the guide hole 9. In this way, the fastener 10 can be pre-fixed in the guide hole 9, thereby facilitating the installation of the mounting disc 8. In addition, the fastener 10 can also cooperate with the thread 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, pre-drill holes around the mounting hole 6, and place expansion pieces matching the self-tapping screws in the drilled holes; then rotate the self-tapping screws to allow the self-tapping screws to extend into the expansion pieces along the direction of the guide holes 9, thereby completing the connection between the mounting disc 8 and the wall 5.

[0071] In some other embodiments, a first knob 17 may 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 preset drill hole of 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 disc 8 , the first knob 17 first contacts the gasket 11 during the rotation process, thereby preventing the first knob 17 from over-rotating and damaging the mounting disc 8 .

[0073] In other embodiments, a plurality of threads may be provided on the circumferential surface of the first knob 17, and the plurality of threads may be arranged at intervals. In this way, when the user rotates the first knob 17, the friction between the user and the first knob 17 may be increased by the threads, so that the user can rotate the first knob 17 with less effort.

[0074] It should be noted that the gasket 11 can be bonded to the mounting disc 8 by glue or other materials, or fixed to the mounting disc 8 by other colloid materials, and the present application embodiment does not limit this. Of course, the material of the gasket 11 can be soft materials such as plastic and rubber.

[0075] Alternatively, if Figure 2 As shown, a plurality of fasteners 10 are provided; the plurality of fasteners 10 are arranged at intervals along the circumference of the mounting disk 8 .

[0076] In the embodiment of the present application, a plurality of fasteners 10 are arranged at intervals along the circumference of the mounting disc 8. In this way, the mounting disc 8 can be connected to the wall 5 through the plurality of fasteners 10, thereby improving the connection strength between the mounting disc 8 and the wall 5.

[0077] For example, Figure 1 As shown, a fastener 10 can be provided on each of the upper, lower, left and right sides of the mounting disc 8, and the spacing between two adjacent fasteners 10 is equal. In this way, fasteners 10 are connected to the wall 5 in all directions of the mounting disc 8, so that the mounting disc 8 is subjected to more uniform force.

[0078] In some embodiments, a plurality of circles of fasteners 10 may be arranged in the circumferential direction of the mounting disc 8 , and the spacing between each circle of fasteners 10 is the same, thereby further improving the connection strength between the mounting disc 8 and the wall 5 .

[0079] Exemplarily, two circles of fasteners 10 can be set, the first circle of fasteners 10 is set on the side of the mounting disc 8 close to the mounting hole 6, and the second circle of fasteners 10 is set on the side of the first circle of fasteners 10 away from the mounting hole 6, and the second circle of fasteners 10 corresponds to the first circle of fasteners 10 one by one, that is, the line between the fasteners 10 in the second circle and the center of the mounting disc 8 coincides with the line between the fasteners 10 in the first circle and the center of the mounting disc 8.

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

[0081] In the embodiment of the present application, a sealing layer 12 is provided between the mounting disc 8 and the wall 5. In this way, the mounting disc 8 and the wall 5 can be sealed by the sealing layer 12 to prevent moisture in the indoor air from entering the mounting pipe 3, thereby damaging the connecting hose.

[0082] In addition, the sealing layer 12 can also serve as a buffer layer to prevent the mounting disc 8 from excessively contacting the wall 5 during installation, thereby preventing the mounting disc 8 from being damaged.

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

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

[0085] Alternatively, if Figure 3 As shown, the water-absorbing layer 4 is a porous water-absorbing material layer.

[0086] In the application embodiment, the water absorbing layer 4 is formed as a porous water absorbing material layer. In this way, the water vapor in the air coming from the channel 20 in the installation pipe 3 can be absorbed by the porous water absorbing material layer, thereby preventing the protection pipe 2 from being corroded by the water vapor.

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

[0088] Exemplarily, the water-absorbing material may include a super absorbent polymer; a super absorbent polymer (SAP) is a new type of functional polymer material. It has a high water absorption function of absorbing water hundreds to thousands of times heavier than itself, and has excellent water retention performance. Once it absorbs water and swells to become a hydrogel, it is difficult to separate the water even under pressure. Super absorbent polymer is a functional polymer material with a large number of hydrophilic groups, which has the characteristics of high liquid absorption capacity, high liquid absorption speed and high liquid retention capacity.

[0089] Exemplarily, the water-absorbing material may also include silica gel; silica gel is a highly active adsorption material that can be used as a desiccant and can be reused. Silica gel is a porous substance with different particle sizes formed by properly dehydrating silica gel mSiO2·nH2O. It has an open porous structure and a large specific surface area (surface area per unit mass). It can adsorb many substances and is a good desiccant, adsorbent and catalyst carrier. The adsorption effect of silica gel is mainly physical adsorption, which can be regenerated and reused.

[0090] Further, the silica gel may include color-changing silica gel. Color-changing silica gel has a strong adsorption effect on water vapor in the air. Color-changing silica gel is a type of silica gel containing a chemical indicator that changes color according to changes in humidity. Its properties are mainly 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 light yellow; when the humidity is high, it turns pink or dark yellow. This color change can remind users whether they need to take measures to protect items from moisture damage.

[0091] In some embodiments, the method for preparing color-changing silica gel is to mix silica gel with an appropriate chemical indicator, and then react them by heating or other methods to generate color-changing silica gel particles. Specifically, the color-changing silica gel is a fine-pored silica gel as a carrier, and cobalt chloride is combined on the surface of the internal pores of the color-changing silicone rubber through certain process steps. In addition to cobalt chloride, commonly used chemical indicators can also use chemicals such as cadmium bromide, all of which can react with silica gel to cause color changes.

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

[0093] In an embodiment of the present application, by setting the porosity of the porous water-absorbing material layer, on the one hand, air can flow from the channel 20 of the mounting tube 3 to the cavity 7 of the protective tube 2, and on the other hand, the strength of the porous water-absorbing material layer can be ensured, thereby providing support between the mounting tube 3 and the protective tube 2.

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

[0095] In the embodiment of the present application, the porosity of the porous water-absorbing material layer can be measured by a water displacement method, which specifically includes: placing the porous water-absorbing material layer in a container of known volume, completely immersing the porous water-absorbing material layer in water, and then measuring the volume of the discharged water, thereby obtaining the volume of the solid structure of the porous water-absorbing material layer excluding the voids, and finally obtaining the porosity of the porous water-absorbing material layer by calculation.

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

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

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

[0099] In the embodiments of the present application, by setting the size of the pores in the porous water-absorbing material layer, on the one hand, air can flow freely from the channel 20 of the mounting tube 3 to the cavity 7 of the protective tube 2, and on the other hand, the strength of the porous water-absorbing material layer can be ensured, thereby providing support between the mounting 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 porous solids. Pores are actually very irregular and are usually regarded as circles and their radius is used to represent the size of the pores.

[0101] The pore size measurement method is as follows: place an accurately weighed pre-treated porous water-absorbing material layer in the sample tube, first vacuum degas, then make the entire system reach the required vacuum degree, then immerse the sample tube in a liquid nitrogen bath and fill it with a known amount of gas. The porous water-absorbing material layer adsorbs the gas and causes a pressure drop. After reaching adsorption equilibrium, the equilibrium pressure of the gas is measured, and the adsorption amount can be calculated based on the pressure change of the system before and after adsorption. The pressure is changed by gradually increasing the amount of adsorbate gas to the system, and the above operation is repeated to test the adsorption-desorption isotherm. The theoretical model is then used to equivalently calculate the specific surface area, pore volume and pore size distribution of the sample being tested. Common adsorbates include nitrogen, argon, carbon dioxide and krypton.

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

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

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

[0105] In some embodiments, the compression amount of the porous water-absorbing material layer can also be set. For example, the compression amount of the porous water-absorbing material layer can be less than 30%. The 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] Alternatively, if Figure 4 As shown, two fixing components 13 are also included; 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, and the ventilation pipe 1 is clamped in the clamping space.

[0107] In the embodiment of the present application, two fixing components 13 are arranged on the mounting disc 8 in a relative manner, and a clamping space is formed between the two fixing components 13, and the ventilation pipe 1 is clamped in the clamping space. In this way, the ventilation pipe 1 can be fixed on the mounting disc 8 by the two fixing components 13, thereby improving the connection strength between the ventilation pipe 1 and the mounting disc 8. In addition, by adjusting the size of the clamping space, it is easy to match ventilation pipes 1 of different diameters, thereby adapting to different types of fresh air equipment.

[0108] In some embodiments, Figure 2 As shown, it also includes a connection port 15, one end of the connection port 15 is connected to the ventilation pipe 1, and the other end is connected to the fresh air device. In this way, the fresh air device is connected to the ventilation pipe 1 through the connection port 15, thereby providing an air source for the fresh air device.

[0109] In some embodiments, Figure 2 As shown, the ventilation pipe 1 is arranged in an L shape; the L-shaped ventilation pipe 1 includes a first sub-ventilation pipe and a second sub-ventilation pipe that are connected to each other, one end of the first sub-ventilation pipe passes through the mounting disc 8 and is connected to the cavity 7 in the protection pipe 2, the other end of the first sub-ventilation pipe is connected to one end of the second sub-ventilation pipe, and the other end of the second sub-ventilation pipe is connected to the fresh air device. In this way, by setting the L-shaped ventilation pipe 1, the connection between the second sub-ventilation pipe and the fresh air device is facilitated.

[0110] In some other embodiments, the fixing assembly 13 may include a pipe bracket, two connecting frames and a plurality of bolts; the pipe bracket is divided into a left half pipe bracket and a right half pipe bracket; the left half pipe bracket and the right half pipe bracket are arranged in a semicircular arc; the clamping space is formed between the left half pipe bracket and the right half pipe bracket, the left half pipe bracket and the right half pipe bracket are arranged on both sides of the first sub-ventilation duct, and the left half pipe bracket and the right half pipe bracket are provided with through holes, and the bolts pass through the through holes and are connected with nuts, so that the left half pipe bracket, the right half pipe and the first sub-ventilation duct are fixedly connected.

[0111] In addition, one end of one of the connecting frames is connected to the left half pipe support, and the other end is connected to the mounting disc 8; one end of another connecting frame is connected to the right half pipe support, and the other end is connected to the mounting disc 8; in this way, by setting a connecting frame between the left half pipe support and the mounting disc 8, and setting another connecting frame between the right half pipe support and the mounting disc 8, it is convenient to connect the pipe support and the mounting disc 8 together, thereby fixing the first sub-ventilation pipe on the mounting disc 8.

[0112] It should be noted that the pipe support refers to a structural component used to support the overhead laying of pipes on the ground. Pipe supports are divided into fixed supports, sliding supports, guide supports, rolling supports, etc. Among them, the fixed support and the pipeline cannot have relative displacement, and the deformation of the fixed pipe support after being stressed is very small compared with the deformation value of the pipeline compensator, so the fixed support needs to have sufficient rigidity.

[0113] Alternatively, if Figure 4 As shown, the fixing assembly 13 includes a fixing seat 131, a support frame 132 and a push rod 133; the fixing seat 131 is arranged on the mounting disc 8, the support frame 132 is connected to the fixing seat 131, the push rod 133 is passed through the support frame 132, and a clamping space is formed between the push rods 133 in the two fixing assemblies 13, and the push rod 133 can move relative to the support frame 132 to adjust the size of the clamping space.

[0114] In the embodiment of the present application, by setting the fixing seat 131 on the mounting disc 8, the support frame 132 is connected to the fixing seat 131, and the push rod 133 is inserted into the support frame 132, a clamping space is formed between the push rods 133 in the two fixing components 13, and the push rod 133 can move relative to the support frame 132 to adjust the size of the clamping space. In this way, by setting the fixing seat 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] In addition, 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 a threaded hole matching the threaded rod is provided in the support frame 132, and 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, and the second knob 135 is fixedly connected to the push rod 133. In this way, the user can rotate the push rod 133 through the second knob 135, so as to facilitate the adjustment of the size of the clamping space.

[0117] In other embodiments, Figure 4As shown, one side of the fixing seat 131 close to the mounting disc 8 is set as an arc surface, and the arc surface matches the mounting disc 8. In this way, the fixing seat 131 is connected to the mounting disc 8.

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

[0119] Exemplarily, if the curvature of the arc surface of the fixing seat 131 is 1, then the curvature of the mounting disc 8 is also 1; if the curvature of the arc surface of the fixing seat 131 is 2, then the curvature of the mounting disc 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 a position corresponding to the through hole in the mounting disc 8 and the fixing seat 131, so that a screw can be passed through the through hole in the fixing seat 131 and threadedly connected with the threaded hole in the mounting disc 8; of course, a bonding medium such as super glue can also be applied to one side of the fixing seat 131 close to the mounting disc 8, and the fixing seat 131 is bonded to the mounting disc 8 by the bonding medium such as super glue.

[0121] In some embodiments, a connecting column is provided on one side of the support frame 132 close to the fixing seat 131, and the connecting column is connected to the support frame 132. The connecting column is provided with threads on its circumference, and a threaded hole is provided at a position corresponding to the fixing seat 131 and the connecting column, and the connecting column is threadedly connected to the threaded hole. In this way, the assembly and disassembly between the support frame 132 and the fixing seat 131 are facilitated, thereby reducing the assembly difficulty and assembly time between the support frame 132 and the fixing seat 131.

[0122] It should be noted that if Figure 4 As shown in FIG. , the ventilation pipe 1 has a symmetry axis in the vertical direction. Figure 4 The left fixing assembly 13 and the right fixing assembly 13 are symmetrically arranged along the symmetry axis.

[0123] Alternatively, if Figure 2 and Figure 4 As shown, the fixing assembly 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 is provided with a groove 14 at a position corresponding to the clamping block 134 , and the other end of the clamping block 134 is clamped in the groove 14 .

[0124] In the embodiment of the present application, by connecting one end of the clamping block 134 to the push rod 133, the ventilation pipe 1 is provided with a groove 14 at a position corresponding to the clamping block 134, and the other end of the clamping block 134 is clamped in the groove 14. In this way, when the ventilation pipe 1 is fixed, the clamping block 134 and the groove 14 are engaged and fixed, so that the ventilation pipe 1 is clamped between the two clamping blocks 134, thereby improving the connection strength between the clamping block 134 and the ventilation pipe 1.

[0125] In some embodiments, Figure 4 As shown, a groove 14 is formed on the outer wall of the ventilation pipe 1, and the clamping block 134 is at least partially disposed in the groove 14, and the groove wall of the groove 14 abuts against the clamping block 134.

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

[0127] In the embodiment of the present application, the side of the clamping block 134 facing the groove 14 is set as an arc surface, and the groove bottom of the groove 14 is adapted to the arc surface. In this way, the clamping block 134 and the groove bottom of the groove 14 are in contact with each other.

[0128] Specifically, the clamping block 134 may be a rubber clamping block 134 ; thus, when the clamping block 134 contacts the ventilation pipe 1 , the rubber clamping block 134 is deformed, thereby protecting the ventilation pipe 1 .

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

[0130] In some embodiments, 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 relatively set notch and a groove bottom, the notch is used for allowing part of the clamping block 134 to enter the groove 14, and the groove 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 the embodiment of the present application, the curvature of the arc surface is set to be the same as the curvature of the groove bottom, so as to increase 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 rotation rate of the tangent direction angle at a certain point on the curve to the arc length. It is defined by differentiation and indicates the degree to which the curve deviates from a straight line. That is, the curvature represents the numerical value of the bending degree 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 groove bottom is also 1; if the curvature of the arc surface of the clamping block 134 is 2, then the curvature of the groove bottom is also 2.

[0135] Optionally, a corrosion-resistant layer 16 is further included; the corrosion-resistant layer 16 covers the circumferential outer surface of the protection tube 2 .

[0136] In the embodiment of the present application, the corrosion-resistant layer 16 is covered on the circumferential outer surface of the protection tube 2. In this way, the humid air in the mounting hole 6 can be prevented from corroding the outer surface of the protection tube 2, thereby increasing the service life of the protection tube 2.

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

[0138] In some other embodiments, when the protective tube 2 is made of metal material, the corrosion-resistant layer 16 can be coated on 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 and phenolic epoxy coatings can be applied to the circumferential outer surface of the protective tube 2 to form the corrosion-resistant layer 16. Of course, the cathodic protection method of sacrificial anode can also be used to protect the protective tube 2; for example, the protective tube 2 is made of steel, and a zinc plate can be welded on part of the surface of the steel. In this way, a chemical battery is formed between the zinc plate and the protective tube 2; since the reducing property of the zinc plate is higher than that of the steel protective tube 2, the zinc plate will be consumed by oxidation reaction as the negative electrode, and the steel protective tube 2 can be used as the positive electrode to avoid corrosion.

[0139] Optionally, an embodiment of the present application proposes a ventilation system, including the pipeline installation structure and air-conditioning equipment in the above embodiment, the air-conditioning equipment including: a connecting hose, an air-conditioning outdoor unit and an air-conditioning indoor unit. The connecting hose is passed through the installation pipe 3, one end of the connecting hose is connected to the air-conditioning outdoor unit, and the other end is connected to the air-conditioning indoor unit.

[0140] In an embodiment of the present application, the mounting tube 3 is passed through the mounting hole 6 of the wall 5, the protective tube 2 is covered on the outer periphery of the mounting tube 3, a gap 19 is present between the protective tube 2 and the mounting tube 3, and the water-absorbing layer 4 is filled in 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 suitable for connecting to the indoor environment, and a plurality of first through holes are provided on the side of the protective tube 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 mounting tube 3 facing the gap 19, and a channel 20 is formed in the mounting tube 3, and the second through holes connect the gap 19 and the channel 20. In this way, outdoor air enters from the channel 20, passes through the second through hole, the water absorption layer 4, the first through hole, the cavity 7 and the ventilation pipe 1 in sequence, and finally enters the room; because the air passes through the water absorption layer 4, the moisture in the air will be absorbed by the water absorption layer 4, thereby avoiding the leakage of the protection pipe 2 and the installation pipe 3 caused by the moisture in the air corroding the inner wall of the protection pipe 2 and the installation pipe 3, thereby affecting the use of the air conditioner and the fresh air equipment; in addition, by inserting the installation pipe 3 into the installation hole 6 of the wall 5, the protection pipe 2 is wrapped around the outer periphery of the installation pipe 3. In this way, by wrapping the protection pipe 2 around the outer periphery of the installation pipe 3, a cavity 7 is formed in the protection pipe 2, and the ventilation pipe 1 is connected with the cavity 7, thereby improving the integration between the installation pipe 3 and the protection pipe 2; and because the outdoor air enters from the channel 20, passes through the second through hole, the water absorption layer 4, the first through hole, the cavity 7 and the ventilation pipe 1 in sequence, and finally enters the room, the protection pipe 2 and the installation pipe 3 are not easy to age, thereby improving the practical life of the protection pipe 2 and the installation pipe 3.

[0141] In addition, since the air passes through the water absorption layer 4, the moisture in the air will be absorbed by the water absorption layer 4, thereby preventing the moisture in the air from corroding the inner walls of the protection tube 2 and the installation tube 3, causing leakage of the protection tube 2 and the installation tube 3, thereby affecting the use of air conditioning and fresh air equipment.

[0142] In addition, by passing the mounting tube 3 through the mounting hole 6 of the wall 5, the protective tube 2 is covered on the outer circumference of the mounting tube 3, so that the mounting tube 3 can also be protected by the protective tube 2; at the same time, since the protective tube 2 is arranged in the mounting hole 6, the total volume of air in contact with the mounting hole 6 is reduced, thereby preventing the moisture in the air from corroding the wall 5 for a long time, resulting in the problem of the wall 5 becoming soft and the supporting force of the wall 5 being reduced.

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

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

[0145] In addition, in the embodiment of the present application, by inserting the connecting hose into the mounting tube 3, one end of the connecting hose is connected to the outdoor unit of the air conditioner, and the other end is connected to the indoor unit of the air conditioner. In this way, the connection between the indoor and outdoor units of the air conditioner can be achieved. In addition, the installation space of the connecting hose and the pipeline installation space of the fresh air device are integrated into one pipeline installation structure, which is conducive to improving the integration between the two, reducing the volume of the mounting hole 6, and thus making the wall 5 more beautiful.

[0146] Optionally, fresh air equipment is also included; the fresh air equipment is connected to the ventilation pipe 1.

[0147] In the embodiment of the present application, the fresh air device is connected to the ventilation pipe 1. In this way, the fresh air device can absorb the dry air in the ventilation pipe 1, so that the fresh air device does not need to perform additional drying on the humid air, thereby reducing the power consumption of the fresh air device and achieving energy saving and environmental protection effects.

[0148] The fresh air device includes a fan assembly, a switching component, a filter assembly and a device body. The device body is provided with an air inlet, a first air outlet and a second air outlet; the filter assembly is located in the device body and is arranged close to the first air outlet, and the fan assembly is arranged in the device body and is used to take in air through the air inlet; the air inlet is connected to the connecting port 15, and the switching component is movably connected to the device body to open or close the second air outlet. When the second air outlet is in a closed state, the airflow flows along the air inlet, the filter assembly and the first air outlet; when the second air outlet is in an open state, the 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 air inlet is discharged through the second air outlet; when the air quality is poor, the airflow entering from the air inlet is filtered by the filter assembly and then discharged through the first air outlet. In other words, when the air quality is good, the airflow does not pass through the filter assembly, which greatly reduces the ventilation resistance, improves the ventilation efficiency, and achieves efficient indoor ventilation; at the same time, it also reduces the burden of the filter assembly, extends the service life of the filter assembly, and reduces the user's use cost. When the air quality is poor, the airflow needs to pass through the filter assembly before being discharged from the first air outlet, which can also ensure the quality of the gas discharged from the first air outlet.

[0150] Therefore, the fresh air equipment provided in this embodiment can selectively use the air filtering and purification functions, avoiding the waste caused by using the filtering function for air that does not need to be filtered and purified, thereby reducing the burden on the filter component and increasing the service life of the filter component, thereby reducing the user's usage cost.

[0151] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. A pipeline installation structure, characterized in that: include: A ventilation pipe (1), a protective pipe (2), a mounting pipe (3) and a water absorbing layer (4); The installation tube (3) is suitable for being inserted into the installation hole (6) of the wall (5); the protection tube (2) is wrapped around the outer circumference of the installation tube (3); a gap (19) is present between the protection tube (2) and the installation tube (3); and the water absorption layer (4) is filled in the gap (19); A cavity (7) is formed in the protection tube (2); one end of the ventilation tube (1) is in communication with the cavity (7), and the other end is suitable for being in communication with the indoor environment; a plurality of first through holes are provided on a side of the protection tube (2) facing the gap (19); the first through holes are in communication with the gap (19) and the cavity (7); a plurality of second through holes are provided on a side of the installation tube (3) facing the gap (19); a channel (20) is formed in the installation tube (3); the second through holes are in communication with the gap (19) and the channel (20).

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

3. The pipeline installation structure according to claim 2, characterized in that: A guide hole (9) is provided in the installation disc (8), a fastener (10) is provided in the guide hole (9), and the fastener (10) is suitable for being connected to the wall (5).

4. The pipeline installation structure according to claim 3, characterized in that: A plurality of the fasteners (10) are provided; the plurality of fasteners (10) are arranged at intervals along the circumference of the mounting disc (8).

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

6. The pipeline installation structure according to claim 1, characterized in that: The water absorbing layer (4) is a porous water absorbing material layer.

7. The pipeline installation structure according to claim 6, characterized in that: 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.

8. The pipeline installation structure according to claim 2, characterized in that: Also includes two fixing components (13); The two fixing components (13) are arranged on the mounting disc (8) in a relative manner, a clamping space is formed between the two fixing components (13), and the ventilation pipe (1) is clamped in the clamping space.

9. The pipeline installation structure according to claim 8, characterized in that: The fixing assembly (13) comprises a fixing seat (131), a supporting frame (132) and a push rod (133); The fixing seat (131) is arranged on the mounting disc (8), the supporting frame (132) is connected to the fixing seat (131), the pushing rod (133) is passed through the supporting frame (132), and the clamping space is formed between the pushing rods (133) in the two fixing components (13), and the pushing rod (133) can move relative to the supporting frame (132) to adjust the size of the clamping space.

10. The pipeline installation structure according to claim 9, characterized in that: The fixing assembly (13) further comprises a clamping block (134); One end of the clamping block (134) is connected to the push rod (133), the ventilation pipe (1) is provided with a groove (14) at a position corresponding to the clamping block (134), and the other end of the clamping block (134) is clamped in the groove (14).

11. The pipeline installation structure according to claim 10, characterized in that: The side of the clamping block facing (134) the groove (14) is set as an arc surface, and the groove bottom of the groove (14) is adapted to the arc surface.

12. The pipeline installation structure according to claim 11, characterized in that: The curvature of the arc surface is the same as the curvature of the groove bottom.

13. The pipeline installation structure according to any one of claims 1 to 12, characterized in that: It also comprises a corrosion-resistant layer (16); the corrosion-resistant layer (16) covers the circumferential outer surface of the protection tube (2).

14. A ventilation system, characterized in that: The invention comprises a pipeline installation structure and an air conditioning device as described in any one of claims 1 to 13, wherein the air conditioning device comprises: a connecting hose, an air conditioning outdoor unit and an air conditioning indoor unit; The connecting hose is inserted into the mounting tube (3), one end of the connecting hose is connected to the outdoor unit of the air conditioner, and the other end is connected to the indoor unit of the air conditioner.

15. The ventilation system according to claim 14, characterized in that It also includes fresh air equipment; the fresh air equipment is connected to the ventilation pipe (1).

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