Prefabricated module outer wall horizontal seam waterproof structure

Abstract

The utility model discloses a prefabricated module outer wall horizontal seam waterproof structure which comprises a lower tongue-and-groove formed in the top of a lower-layer building outer wall and an upper tongue-and-groove formed in the bottom of an upper-layer building outer wall. The lower rabbets and the upper rabbets are Z-shaped rabbets and are spliced along the Z-shaped rabbets, horizontal seams are formed in the splicing positions, and pressing grooves are formed in the positions, at the horizontal seams, of the outer walls of the lower-layer building and the upper-layer building. The pressing grooves extend to the upper side and the lower side with the position, on the outer wall face, of the horizontal seam as the center and are arranged in the circumferential direction of the building outer wall along the horizontal seam to form a closed loop. An assembly reference is provided for an assembly project of a building, various external force changes in the project are coped, the waterproof performance of the building outer wall is guaranteed, and the pressing grooves reserve installation space for the waterproof process of the outer wall, guarantee effective installation of waterproof materials and further improve the waterproof performance of the modular building outer wall through cooperation with the horizontal seams.

Description

Technical Field

[0001] The utility model belongs to the technical field of building waterproofing, and more specifically relates to a prefabricated module exterior wall horizontal seam waterproofing structure. Background Art

[0002] Modular integrated buildings are an important trend in the industrialization of construction. The joints of modular buildings need to be waterproofed. Even if prefabricated modules are used, there is still a potential risk of water penetration in the joints between modules. In outdoor or humid environments, if the joints are not effectively waterproofed, water may penetrate into the building through the joints, causing problems such as leakage, mold growth, and structural damage. In order to ensure the long-term stability and service life of modular buildings, it is very important to waterproof the joints. The conventional practice is to use methods such as sealants to ensure that the joints between modules are sealed and waterproof. However, in the actual construction process, due to installation errors between the upper and lower layers of the modules, the modules are not on the same plane, resulting in the failure of the sealant to seal tightly and waterproofing.

[0003] The Chinese patent with the announcement number CN217175237U discloses a waterproof structure for building gaps, including: sealant, which is filled in the building gaps; butyl tape, one side of the butyl tape is an adhesive surface, and the other side is a non-woven fabric, and the butyl tape covers the upper side of the building gap; a waterproof coating layer, which is applied to the upper side of the butyl tape. This waterproof structure adds butyl tape and waterproof coating layer on the basis of the original waterproofing with only one sealant, so that the waterproof effect of the building gap is more reliable, especially in the parts of complex nodes, and it can also moisturize the external beauty. On the basis of the original waterproofing with only one glue seam, a single-sided self-adhesive butyl tape with a non-woven fabric on the back is laid, and a protective layer of the glue seam is added to slow down the aging speed of the glue seam.

[0004] However, the Chinese patent with the announcement number CN217175237U states that when the building is subjected to changes in external force, the shaking of the building will cause a gap between the waterproof structure and the building gap, thereby causing the waterproof structure to fail. Therefore, a waterproofing process for horizontal joints of modular concrete buildings is needed, which can ensure that the building gaps are waterproof while ensuring that the building will not fail when affected by changes in external force. Utility Model Content

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a prefabricated module exterior wall horizontal seam waterproof structure, which uses tongue and groove to connect at the joint of two-layer modular buildings, provides an assembly reference for the building assembly project, and copes with various external force changes in the project to ensure the waterproof performance of the building exterior wall. The pressed groove reserves installation space for the waterproof process of the exterior wall, ensures the effective installation of waterproof materials, and cooperates with the horizontal seam to further improve the waterproof performance of the modular building exterior wall.

[0006] In order to achieve the above objectives, the utility model provides a prefabricated module exterior wall horizontal seam waterproof structure, comprising:

[0007] The lower tongue and groove is set at the top of the outer wall of the lower structure, and the upper tongue and groove is set at the bottom of the outer wall of the superstructure;

[0008] The lower tongue and the upper tongue are both Z-shaped tongues, and the joints are spliced ​​along the Z-shaped tongue to form a horizontal seam, and a pressing groove is provided on the outer wall of the lower structure and the upper structure at the horizontal seam;

[0009] The pressing groove takes the position of the horizontal seam on the outer wall surface as the center, extends to the upper and lower sides, and is arranged around the outer wall of the building along the horizontal seam to form a closed loop.

[0010] Furthermore, a prefabricated top plate is provided on the top of the lower structure, and a cast-in-place composite beam is also provided on the prefabricated top plate. The top of the outer wall of the lower structure is narrower than the bottom of the outer wall of the upper structure, and the outdoor part of the connection is flush and the indoor part is stepped.

[0011] The top of the composite beam is flush with the top of the lower tongue and groove of the lower structure and covers the entire top of the lower structure.

[0012] Further, the lower tongue and groove is provided on the top of all the outer walls of the lower building along the edge of the building, and its protruding part is close to the interior;

[0013] The upper tongue and groove is arranged at the bottom of all the outer walls of the superstructure along the edge of the building, and the protruding part thereof is close to the outdoors.

[0014] Furthermore, an inner waterproof mortar is provided in the horizontal joint near the indoor part, and an inner PE rod is provided on the side of the inner waterproof mortar near the outdoor part;

[0015] A waterproof sealant is arranged in the horizontal seam near the outdoor part, an elastic sealing ball is arranged near the indoor side of the waterproof sealant, and an outer PE rod is arranged near the indoor side of the elastic sealing ball.

[0016] Furthermore, the inner waterproof mortar, the inner PE rod, the outer PE rod, the waterproof sealant and the elastic sealing ball are all interference-fitted with the horizontal joint.

[0017] Furthermore, the outer side of the waterproof sealant is flush with the outer cross section of the horizontal seam, and the outer cross section of the horizontal seam is also provided with an external waterproof mortar;

[0018] The external waterproof mortar is filled in the pressing groove.

[0019] Furthermore, a fiberglass mesh is provided between the external waterproof mortar and the bottom of the groove;

[0020] The glass fiber mesh and the external waterproof mortar cover the bottom of the groove and form a whole with it.

[0021] Furthermore, a cavity is left between the inner PE rod and the outer PE rod;

[0022] The slope at the joint of the lower tongue and the upper tongue is arranged in the cavity.

[0023] Furthermore, a water guide strip is embedded in the pressing groove;

[0024] The water guide strip comprises a water baffle plate arranged on the outside, a water-repellent plate arranged on the inside of the water baffle plate, a water guide plate arranged on the top, a water-repellent channel connected to the bottom of the water guide plate, and a filter screen arranged at the other end of the water-repellent channel.

[0025] Furthermore, the outer side of the water retaining plate is a vertical structure, which is in the same vertical plane as the outer wall surface, and the inner side is an inclined surface;

[0026] The surface of the hydrophobic plate is an inclined surface, the top of which is connected to the top of the inner inclined surface of the water retaining plate, and the bottom is connected to the outer side of the lower end of the pressure groove;

[0027] The water guide plates are funnel-shaped and are arranged at intervals along the circumference of the outer wall on the water guide strips;

[0028] The other end of the hydrophobic channel is connected to the bottom of the hydrophobic plate and directly passes through the water guide strip;

[0029] The lower parts of the adjacent water guide plates are connected to the drainage channels.

[0030] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0031] 1. The utility model is a prefabricated module exterior wall horizontal seam waterproof structure, which uses tongue and groove to connect at the joint of two-layer modular buildings, provides an assembly reference for the building assembly project, and responds to various external force changes in the project to ensure the waterproof performance of the building exterior wall. The pressed groove reserves installation space for the waterproof process of the exterior wall, ensures the effective installation of waterproof materials, and cooperates with the horizontal seam to further improve the waterproof performance of the modular building exterior wall.

[0032] 2. The upper and lower tongue-and-groove waterproof structure of the horizontal seam of the exterior wall of a prefabricated module of the utility model can prevent water from seeping into the connection seam between the indoor cast-in-place part and the prefabricated part while achieving external waterproofing, thereby better ensuring the waterproof performance of the building and also achieving waterproof protection for the indoor cast-in-place wall.

[0033] 3. The utility model provides a prefabricated module exterior wall horizontal seam waterproof structure with a cavity in the horizontal seam, which provides fault-tolerant space for the structures on both sides, allowing the materials to expand and contract freely, preventing the thermal expansion and contraction of the structures on both sides caused by weather changes from leading to stress concentration or damage between the components, reducing the influence of deformation of the building structure caused by foundation settlement and concrete shrinkage on the connection seam, improving stability, absorbing and dispersing vibration energy, reducing the influence of vibration under the action of earthquakes and wind on the building structure, and improving seismic performance.

[0034] 4. The press groove of the horizontal seam waterproof structure of the prefabricated module exterior wall of the utility model will produce a certain degree of misalignment between the exterior walls of the lower building and the upper building, resulting in assembly errors. After the splicing is completed, when the external waterproof mortar is constructed in the press groove, the error is leveled by the press groove to maintain the flatness of the exterior wall and ensure the beauty of the overall exterior facade of the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the installation of a prefabricated module exterior wall horizontal seam waterproof structure according to an embodiment of the utility model;

[0036] Figure 2 This is a schematic diagram of the overall structure of a prefabricated module exterior wall horizontal seam waterproof structure according to an embodiment of the utility model;

[0037] Figure 3 This is a schematic diagram of a horizontal seam connection of a horizontal seam waterproof structure of a prefabricated module exterior wall according to an embodiment of the utility model;

[0038] Figure 4 This is a schematic diagram of the connection between the horizontal seam of a prefabricated module exterior wall horizontal seam waterproof structure and other structures according to an embodiment of the utility model;

[0039] Figure 5 This is a schematic diagram of the structural connection of another embodiment of the utility model;

[0040] Figure 6 This is a schematic diagram of the water retaining strip structure of another embodiment of the utility model.

[0041] In all the drawings, the same figure marks represent the same technical features, specifically: 1-substructure, 2-superstructure, 3-lower tongue and groove, 4-upper tongue and groove, 5-horizontal seam, 6-inner waterproof mortar, 7-inner PE rod, 8-outer PE rod, 9-waterproof sealant, 10-pressed groove, 11-fiberglass mesh, 12-external waterproof mortar, 13-waterproof putty, 14-cavity, 15-composite beam, 16-water guide strip, 161-water retaining plate, 162-drain plate, 163-water guide plate, 164-drain channel, 165-filter screen, 17-elastic sealing ball. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] Example 1

[0044] like Figure 1 As shown, the embodiment of the utility model provides a prefabricated module exterior wall horizontal seam waterproof structure, including a lower tongue and groove 3 provided at the top of the exterior wall of the lower building 1 and an upper tongue and groove 4 provided at the bottom of the exterior wall of the superstructure 2, the lower tongue and groove 3 and the upper tongue and groove 4 are spliced ​​to form a horizontal seam 5 at the splicing, and a pressing groove 10 is provided on the exterior wall of the lower building 1 and the superstructure 2 at the horizontal seam 5. The tongue and groove are used to connect at the splicing of the two-layer modular building, providing an assembly reference for the assembly project of the building, and at the same time coping with various external force changes in the project to ensure the waterproof performance of the exterior wall of the building, and the pressing groove reserves installation space for the waterproof process of the exterior wall, ensuring the effective installation of the waterproof material, and cooperating with the horizontal seam 5 to further improve the waterproof performance of the exterior wall of the modular building.

[0045] like Figure 2-4 As shown, the top of the substructure 1 is provided with a prefabricated top plate, and the prefabricated top plate is also provided with a cast-in-place composite beam 15. The top of the outer wall of the substructure 1 is narrower than the bottom of the outer wall of the superstructure 2, and the outdoor part of the connection is flush and the indoor part is stepped. The top of the composite beam 15 is flush with the top of the lower tongue and groove 3 of the substructure 1 and covers the entire top of the substructure 1. The lower tongue and groove 3 is provided at the top of all the outer walls of the substructure 1 along the edge of the building, and is a Z-shaped tongue and groove, and its protruding part is close to the indoor. The upper tongue and groove 4 is provided at the bottom of all the outer walls of the superstructure 2 along the edge of the building, and is also a Z-shaped tongue and groove, and its protruding part is close to the outdoor. The lower tongue and groove 3 and the upper tongue and groove 4 form a horizontal seam 5 at the joint of the substructure 1 and the superstructure 2. The outdoor part of the horizontal seam 5 is formed by the gap between the lower tongue and groove 3 and the upper tongue and groove 4, and the indoor part is formed by the gap between the upper tongue and groove 4 and the composite beam 15. While achieving external waterproofing, it prevents water from the exterior wall from seeping into the joints between the indoor cast-in-place part and the prefabricated part, better ensuring the waterproof performance of the building and also achieving waterproof protection for the indoor cast-in-place walls.

[0046] Preferably, the top surface of the lower groove 3 and the bottom surface of the upper groove 4 are both coated with waterproof coating.

[0047] The groove 10 is centered on the position of the horizontal seam 5 on the outer wall, extends 100 mm on both sides, and is pressed into the inner side of the outer wall to form a groove. The groove 10 is arranged along the horizontal seam 5 around the outer wall of the building to form a closed loop. When the lower building 1 and the upper building 2 are spliced, there will be a certain degree of misalignment between the outer walls, resulting in assembly errors. After the splicing is completed, when the outer waterproof mortar 12 is constructed in the groove 10, the groove 10 is used to level the error, so as to maintain the flatness of the outer wall and ensure the beauty of the overall facade of the building.

[0048] The horizontal joint 5 near the indoor part is provided with an inner waterproof mortar 6, which is a polymer waterproof mortar. The inner waterproof mortar 6 is provided with an inner PE rod 7 near the outdoor side. The horizontal joint 5 near the outdoor part is provided with a waterproof sealant 9, and the waterproof sealant 9 is provided with an elastic sealing ball 17 near the indoor side, and the elastic sealing ball 17 is also provided with an outer PE rod 8 near the indoor side. The inner waterproof mortar 6, the inner PE rod 7, the outer PE rod 8, the waterproof sealant 9 and the elastic sealing ball 17 are all interference fit with the horizontal joint 5 to reduce the gap between the structures.

[0049] Preferably, the outer side of the waterproof sealant 9 is coated with a waterproof coating, and the waterproof coating is tightly connected with the waterproof coating on the top surface of the lower tongue and groove 3 and the bottom surface of the upper tongue and groove 4 .

[0050] A cavity 14 is left between the inner PE rod 7 and the outer PE rod 8, and the slope at the joint of the lower tongue 3 and the upper tongue 4 is set in the cavity 14. It provides fault tolerance space for the structures on both sides, so that the materials can expand and contract freely, prevent the thermal expansion and contraction of the structures on both sides caused by weather changes, resulting in stress concentration or damage between the components, reduce the influence of deformation of the building structure caused by foundation settlement and concrete shrinkage on the connection joint, improve stability, absorb and disperse vibration energy, reduce the influence of vibration under earthquake and wind force on the building structure, and improve seismic performance.

[0051] The outer side of the waterproof sealant 9 is flush with the outer section of the horizontal seam 5. The outer section of the horizontal seam 5 is also provided with an external waterproof mortar 12. The external waterproof mortar 12 is filled in the groove 10. A fiberglass mesh 11 is also provided between the external waterproof mortar 12 and the bottom of the groove 10. The fiberglass mesh 11 and the external waterproof mortar 12 cover the bottom of the groove 10 and form an integral body with it. A layer of waterproof putty 13 is also provided between the outer side of the external waterproof mortar 12 and the outer wall surface. The waterproof putty 13 is a waterproof putty coating, which is integrally applied to the outer side of the external waterproof mortar 12 and the outer wall surface.

[0052] Preferably, the construction steps of the waterproof structure are:

[0053] Step 1: The top and bottom of the module outer wall are made into Z-shaped grooves, and a pressure groove is opened at the groove. A layer of waterproof coating is applied to the other parts except the pressure groove;

[0054] Step 2: When stacking modules, leave a 20mm horizontal gap 5 at the top and bottom to adjust the height for construction error;

[0055] Step 3: Fill the inner PE rod 7 and the outer PE rod 8 on both sides of the horizontal joint 5, and fill the inner waterproof mortar 6 on the inner PE rod 7 near the indoor side, and fill the waterproof sealant 9 on the outer PE rod 8 near the outdoor side;

[0056] Step 4: Apply waterproof paint on the outside of the waterproof sealant 9 to make it close to the part that has been painted in the factory, press the groove 10 and press in a fiberglass mesh 11 to strengthen the bonding force, and repair it with external waterproof mortar 12.

[0057] Among them, in step 4, there is an error between the upper and lower modules. While using the external waterproof mortar 12 for repair, the error of the external wall is leveled to make the overall facade flat, and also ensure the effectiveness of the internal tongue and groove waterproof structure.

[0058] Example 2

[0059] like Figure 5-6 As shown, on the basis of Example 1, the embodiment of the utility model is provided with a water guide strip 16 on the outside of the waterproof putty 13. The water guide strip 16 is made of elastic corrosion-resistant material, embedded in the pressure groove 10, and closely connected with the waterproof putty 13. A water baffle 161 is provided on the outer side of the top of the water guide strip 16. The outer side of the water baffle 161 is a vertical structure, which is in the same vertical plane as the outer wall surface, and the inner side is an inclined surface. A hydrophobic plate 162 is provided on the inner side of the water baffle 161. The surface of the hydrophobic plate 162 is an inclined surface. The top of the inclined surface is connected to the top of the inner inclined surface of the water baffle 161, and the bottom is connected to the outer side of the lower end of the pressure groove 10. A water guide plate 163 is also provided on the inner side of the top of the water guide strip 16. The water guide plate 163 is funnel-shaped and is arranged at intervals along the circumference of the outer wall on the water guide strip 16. The bottom of the water guide plate 163 is connected to a drain channel 164, and the other end of the drain channel 164 is connected to the bottom of the drain plate 162, and directly penetrates the water guide bar 16. The connection between the lower part of the adjacent water guide plates 163 and the drain channel 164 is interconnected to prevent a drain channel 164 from being blocked, causing the water therein to be unable to be discharged for a long time, thereby damaging the structure. A filter screen 165 is also provided at one end of the drain channel 164 to prevent small insects from entering the drain channel 164 and causing it to be blocked.

[0060] Preferably, the water guide strip 16 constitutes the first layer of waterproofing of the waterproof structure. When rainwater flows down from the upper wall, it flows directly downward under the action of the water retaining plate 161; rainwater that directly floats onto the horizontal seam 5 is blocked by the hydrophobic plate 162 and flows downward along the lower wall; part of the moisture that penetrates along the upper wall of the pressure groove 10 is collected in it under the action of the water guide plate 163 and flows to the inclined surface of the hydrophobic plate 162 through the hydrophobic channel 164.

[0061] Preferably, the waterproof putty 13, external waterproof mortar 12, fiberglass mesh 11, waterproof sealant 9, elastic sealing ball 17 and external PE rod 8 constitute the second layer of waterproofing of the waterproof structure. If part of the moisture penetrates through the first layer of waterproofing, the second layer of waterproofing can prevent the moisture from further penetrating into the horizontal seam 5.

[0062] Preferably, the cavity 14 constitutes the third waterproof layer of the waterproof structure. If some moisture penetrates through the second waterproof layer, the slope in the cavity 14 prevents the moisture from further penetrating.

[0063] Preferably, the inner waterproof mortar 6 and the inner PE rod 7 constitute the fourth waterproof layer of the waterproof structure. If some moisture penetrates through the third waterproof layer, the fourth waterproof layer prevents the moisture from further penetrating into the room, thereby ensuring that the internal splicing structure including the composite beam 15 is not affected by outdoor precipitation.

[0064] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prefabricated module exterior wall horizontal seam waterproof structure, characterized in that: include: A lower tongue and groove (3) provided at the top of the outer wall of the lower structure (1), and an upper tongue and groove (4) provided at the bottom of the outer wall of the upper structure (2); The lower tongue (3) and the upper tongue (4) are both Z-shaped tongues, which are spliced ​​along the Z-shaped tongue to form a horizontal seam (5) at the splicing point, and a pressing groove (10) is provided on the outer wall of the lower structure (1) and the upper structure (2) at the horizontal seam (5); The pressed groove (10) is centered at the position of the horizontal seam (5) on the outer wall surface, extends to the upper and lower sides, and is arranged along the horizontal seam (5) around the circumference of the building outer wall to form a closed loop.

2. The prefabricated module exterior wall horizontal seam waterproof structure according to claim 1, characterized in that: The top of the lower structure (1) is provided with a prefabricated top plate, and the prefabricated top plate is also provided with a cast-in-place composite beam (15); the top of the outer wall of the lower structure (1) is narrower than the bottom of the outer wall of the upper structure (2); and the outdoor part of the connection is flush and the indoor part is stepped; The top of the composite beam (15) is flush with the top of the lower tongue and groove (3) of the substructure (1) and covers the entire top of the substructure (1).

3. The prefabricated module exterior wall horizontal seam waterproof structure according to claim 2, characterized in that: The lower tongue and groove (3) is arranged on the top of all the external walls of the lower building (1) along the edge of the building, and its protruding part is close to the interior; The upper tongue and groove (4) is arranged at the bottom of all the outer walls of the superstructure (2) along the edge of the building, and its protruding part is close to the outdoors.

4. A prefabricated module exterior wall horizontal seam waterproof structure according to any one of claims 1 to 3, characterized in that: An inner waterproof mortar (6) is provided in the horizontal joint (5) near the indoor part, and an inner PE rod (7) is provided on the side of the inner waterproof mortar (6) near the outdoor part; A waterproof sealant (9) is provided in the horizontal seam (5) near the outdoor part, an elastic sealing ball (17) is provided on the indoor side of the waterproof sealant (9), and an outer PE rod (8) is provided on the indoor side of the elastic sealing ball (17).

5. The prefabricated module exterior wall horizontal seam waterproof structure according to claim 4, characterized in that: The inner waterproof mortar (6), the inner PE rod (7), the outer PE rod (8), the waterproof sealant (9) and the elastic sealing ball (17) are all fitted with the horizontal joint (5) in an interference fit.

6. The prefabricated module exterior wall horizontal seam waterproof structure according to claim 5, characterized in that: The outer side of the waterproof sealant (9) is flush with the outer cross section of the horizontal seam (5), and the outer cross section of the horizontal seam (5) is also provided with an external waterproof mortar (12); The external waterproof mortar (12) is filled in the pressing groove (10).

7. The prefabricated module exterior wall horizontal seam waterproof structure according to claim 6, characterized in that: A glass fiber mesh (11) is also provided between the external waterproof mortar (12) and the bottom of the pressing groove (10); The glass fiber mesh (11) and the external waterproof mortar (12) are spread all over the bottom of the pressing groove (10) to form a whole with it.

8. The prefabricated module exterior wall horizontal seam waterproof structure according to claim 4, characterized in that: A cavity (14) is left between the inner PE rod (7) and the outer PE rod (8); The slope at the joint between the lower tongue and groove (3) and the upper tongue and groove (4) is arranged in the cavity (14).

9. A prefabricated module exterior wall horizontal seam waterproof structure according to any one of claims 1-3, characterized in that: A water guide strip (16) is embedded in the pressing groove (10); The water guide strip (16) comprises a water baffle (161) arranged on the outside, a water-repellent plate (162) arranged on the inside of the water baffle (161), a water guide plate (163) arranged on the top, a water-repellent channel (164) connected to the bottom of the water guide plate (163), and a filter screen (165) arranged at the other end of the water-repellent channel (164).

10. The prefabricated module exterior wall horizontal seam waterproof structure according to claim 9, characterized in that: The outer side of the water retaining plate (161) is a vertical structure, which is in the same vertical plane as the outer wall surface, and the inner side is an inclined surface; The surface of the hydrophobic plate (162) is an inclined surface, the top of which is connected to the top of the inner inclined surface of the water retaining plate (161), and the bottom of which is connected to the outer side of the lower end of the pressing groove (10); The water guide plates (163) are funnel-shaped and are arranged on the water guide strips (16) at intervals along the circumference of the outer wall; The other end of the hydrophobic channel (164) is connected to the bottom of the hydrophobic plate (162) and directly passes through the water guide strip (16); The connection points between the lower parts of the adjacent water guide plates (163) and the drainage channels (164) are in communication with each other.

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