Shunting composite structure layer body special for roof edge pipe penetrating position

Abstract

The utility model discloses a shunting composite structure layer body special for a roof edge pipe penetrating position, and relates to the technical field of buildings. The pipeline penetrating body is connected into the steel sleeve with the water stop ring in a penetrating mode, the outer side wall of the pipeline penetrating body and the inner side wall of the steel sleeve with the water stop ring are sealed through sealing colloid, and a reducing sealing sleeve for the root is arranged at the contact position of the steel sleeve with the water stop ring and the top of a roof. Waterproof layers are arranged on the upper surface of the roof top, the outer surface of the variable-diameter sealing sleeve for the root and the outer side wall of the steel sleeve with the water stop ring, a concrete pouring layer is arranged on the upper sides of the waterproof layers, an upper compression-resistant layer is arranged on the upper side of the concrete pouring layer, and the upper compression-resistant layer and the steel sleeve with the water stop ring are sealed through a joint filling rubber ring. The upper end face of the steel sleeve with the water stop ring is sealed with the pipeline penetrating body through the sealing paste body, the water guide seat body is connected to the outer side of the pipeline penetrating body in a sleeving mode, and the inner side wall of the water guide seat body is sealed with the sealing paste body.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and particularly relates to a shunt composite structure layer specifically used for the pipe penetration at the roof edge. Background Art

[0002] The roof refers to the surface of the building roof and also the part between the ridge and the eaves. Existing roofs need waterproof treatment. However, after pipes are penetrated through the roof, gaps are likely to appear between the pipe penetration positions and the embedded pipes, which are prone to water ingress. The following problems will occur during the waterproof construction:

[0003] First, gaps will appear at the connection between the reserved pipe and the roof, which is one of the key and difficult points for roof repair. Moreover, there is no corresponding durable treatment method. During waterproof construction, caulking treatment needs to be carried out first. After the waterproof coating is constructed, the caulking layer in the later stage will crack with the roof or the reserved pipe, interfering with the overall water diversion direction of the roof, resulting in the problem of disordered water diversion and causing the failure of the roof waterproof performance, directly damaging the overall waterproof and sealing performance of the building roof and accelerating the aging speed of the roof.

[0004] Second, the pipe penetration and the reserved pipe are sealed with sealant. After long-term use, the sealant is prone to cracking, and water will enter the inside of the reserved pipe from the outer side wall of the pipe penetration. Eventually, the water will enter the house, and it fails to achieve the sealing effect.

[0005] The above problems are particularly prominent in the repair work of old communities, and there is no corresponding persistent unified treatment method. Content of the Utility Model

[0006] To solve the problems mentioned in the above background art, the purpose of the utility model is to provide a shunt composite structure layer specifically used for the pipe penetration at the roof edge, which can improve the waterproof performance and sealing performance and adopt a water guiding method to reduce the phenomenon of water entering the lower side of the waterproof layer.

[0007] A diversion composite structure layer specifically for the pipe-passing area at the roof edge of the utility model includes a steel casing with a water stop ring, a pipe-passing body, a reducing sealing sleeve for the root, a waterproof layer, a concrete pouring layer, an upper compression layer, a caulking rubber ring, a sealing colloid, a water guiding seat body, and a sealing paste; the steel casing with a water stop ring is placed inside the roof top and extends outside the roof top, the pipe-passing body is inserted into the inside of the steel casing with a water stop ring, the outer side wall of the pipe-passing body and the inner side wall of the steel casing with a water stop ring are sealed by the sealing colloid, a reducing sealing sleeve for the root is arranged at the contact position between the steel casing with a water stop ring and the roof top, the waterproof layer is arranged on the upper surface of the roof top, the outer surface of the reducing sealing sleeve for the root, and the outer side wall of the steel casing with a water stop ring, the concrete pouring layer is arranged on the upper side of the waterproof layer, the upper compression layer is arranged on the upper side of the concrete pouring layer, the upper compression layer and the steel casing with a water stop ring are sealed by the caulking rubber ring, the upper end surface of the steel casing with a water stop ring is sealed with the pipe-passing body by the sealing paste, the water guiding seat body is sleeved on the outer side of the pipe-passing body, and the inner side wall of the water guiding seat body is sealed with the sealing paste.

[0008] As a preferred scheme, the upper compression layer is a self-provided height difference layer body, the upper compression layer includes a high compression layer, a transition compression layer, and a low compression layer, the high compression layer, the transition compression layer, and the low compression layer are connected in sequence as a whole, the transition compression layer is arranged obliquely, the high side of the transition compression layer is connected with one side of the high compression layer, the low side of the transition compression layer is connected with one side of the low compression layer, the low compression layer is arranged close to the roof edge, the high compression layer is arranged far from the roof edge, the caulking rubber ring is arranged obliquely on the transition compression layer, and the top surface of the caulking rubber ring is flush with the top surface of the transition compression layer.

[0009] As a preferred scheme, the outer side wall of the reducing sealing sleeve for the root is a fillet with a radius of R50 - 80mm.

[0010] As a preferred scheme, additional waterproof coiled materials are arranged at the bottom of the waterproof layer corresponding to the reducing sealing sleeve for the root and the steel casing with a water stop ring, and one end of the additional waterproof coiled material extends to the upper surface of the roof top.

[0011] As a preferred scheme, the concrete pouring layer includes a cement mortar leveling layer, a steel wire mesh, and a concrete casting body; the steel wire mesh is arranged on the upper side of the cement mortar leveling layer, and the concrete casting body is arranged on the upper side of the steel wire mesh.

[0012] As a preferred scheme, the upper compression layer includes a curing agent layer and a floor paint layer; the floor paint layer is arranged on the upper surface of the curing agent layer.

[0013] As a preferred scheme, the caulking rubber ring is a one-component polyurethane sealant.

[0014] As a preferred solution, the water guide seat body includes a straight sleeve, a conical water guide pipe, a water guide boss, and a sealing ring body; the lower end of the straight sleeve is integrally connected with a conical water guide pipe, the bottom of the conical water guide pipe is connected with a water guide boss, and a sealing ring body is installed on the inner side wall of the straight sleeve.

[0015] As a preferred solution, several concave water guide grooves are provided on the upper end surface of the water guide boss.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: through the mutual cooperation of the steel casing with a water stop ring, the pipe penetrating body, the reducing sealing sleeve at the root, the waterproof layer, the concrete pouring layer, the upper compression layer, the caulking rubber ring, the sealing colloid, the water guide seat body, and the sealing paste, the continuous and stable waterproofing and water guiding processes at the position of the pipe penetrating body on the roof are realized, the compressive and crack-resistant performance of the roof surface is enhanced, and the water flow around the pipe penetrating body at the edge of the roof can also be effectively guided in multiple directions, which is conducive to forming a reasonable and durable self-crack-resistant water guiding form, strengthening the water guiding and waterproofing performance at the connection position between the roof and the pipe penetrating body, making it difficult for water to enter the lower side of the waterproof layer and the house, and at the same time improving the sealing performance at the edge of the roof and around the pipe penetrating body, which is conducive to forming a standardized and unified treatment method for the roof edge. The specific advantages are as follows:

[0017] First, the reducing sealing sleeve at the root is used to realize the connection between the steel casing with a water stop ring and the roof, and the outer surface is set as a rounded corner, which is convenient for the construction of the waterproof layer, enables the waterproof layer to be closely attached, and improves the waterproof performance.

[0018] Second, the steel casing with a water stop ring and the pipe penetrating body are sealed through the sealing colloid, which can achieve primary sealing, and at the same time, the water guide seat body is used to achieve secondary sealing and water guiding, making it difficult for water to enter the lower side of the waterproof layer and the house.

[0019] Third, the waterproof layer is protected through the concrete pouring layer, and the upper compression layer can improve the strength of the concrete pouring layer, making the concrete pouring layer not prone to cracking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For ease of explanation, the present utility model will be described in detail by the following specific embodiments and accompanying drawings.

[0021] Figure 1 It is the main view sectional structure schematic diagram of the present utility model, and the arrow direction in the figure is the direction of rainwater gathering on the roof;

[0022] Figure 2 It is the main view structure schematic diagram of the reducing sealing sleeve at the root;

[0023] Figure 3 It is the three-dimensional structure schematic diagram of the reducing sealing sleeve at the root;

[0024] Figure 4 It is a sectional view of the concrete pouring layer;

[0025] Figure 5 It is a sectional view of the upper compression layer;

[0026] Figure 6 It is a three-dimensional structure schematic diagram of the water guiding seat body;

[0027] Figure 7 It is a front view structure schematic diagram of the sealing paste;

[0028] Figure 8 It is a front view sectional structure schematic diagram of the connection relationship among the pipe penetrating body, the caulking rubber ring and the upper compression layer;

[0029] Figure 9 It is a three-dimensional structure schematic diagram of the connection relationship between the caulking rubber ring and the upper compression layer. In the figure, the two arrow directions respectively represent the rainwater diversion directions.

[0030] In the figure: 1 - steel casing with water stop ring; 2 - pipe penetrating body; 3 - reducing sealing sleeve for the root; 4 - waterproof layer; 5 - concrete pouring layer; 6 - upper compression layer; 6-1 - high compression layer; 6-2 - transition compression layer; 6-3 - low compression layer; 7 - caulking rubber ring; 8 - sealing colloid; 9 - water guiding seat body; 10 - sealing paste;

[0031] 4-1 - additional waterproof coiled material;

[0032] 5-1 - cement mortar leveling layer; 5-2 - steel wire mesh; 5-3 - concrete casting;

[0033] 61 - curing agent layer; 62 - floor paint layer;

[0034] 9-1 - straight sleeve; 9-2 - tapered water guide pipe; 9-3 - water guiding boss; 9-4 - sealing ring body;

[0035] 9-31 - water guiding groove; 20 - roof edge. Detailed implementation manners

[0036] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be described below through specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and do not limit the scope of the present utility model. The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have technical substantial significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present utility model.

[0037] Here, it should also be noted that in order to avoid obscuring the present utility model due to unnecessary details, only the structures and / or processing steps closely related to the solution according to the present utility model are shown in the drawings, while other details less related to the present utility model are omitted.

[0038] Combined with Figures 1 to 9 As shown, this specific implementation manner uses a waterproof layer to achieve the waterproof performance between the steel casing with a water stop ring and the upper surface of the roof. The following technical solutions are specifically adopted: including a steel casing with a water stop ring 1, a reducing sealing sleeve 3 for the root, and a waterproof layer 4; the steel casing with a water stop ring 1 is placed into the roof and extends out of the exterior of the roof. A reducing sealing sleeve 3 for the root is provided at the contact between the steel casing with a water stop ring 1 and the roof top. The reducing sealing sleeve 3 for the root can achieve caulking and connection between the steel casing with a water stop ring 1 and the roof top. At the same time, as Figure 2 shown, the outer side wall of the reducing sealing sleeve 3 for the root is a fillet with a radius of R50 - 80 mm. The fillet can facilitate the construction of the waterproof layer, making it not easy for the waterproof layer to appear bent or broken, improving the waterproof property of the waterproof layer. The waterproof layer 4 is provided on the upper surface of the roof top, the outer surface of the reducing sealing sleeve 3 for the root, and the outer side wall of the steel casing with a water stop ring 1. An additional waterproof coiled material 4-1 is provided at the bottom of the waterproof layer 4 corresponding to the reducing sealing sleeve 3 for the root and the steel casing with a water stop ring 1. One end of the additional waterproof coiled material 4-1 extends to the upper surface of the roof top. The additional waterproof coiled material 4-1 can achieve primary waterproofing between the roof top and the steel casing with a water stop ring 1, and the waterproof layer 4 is secondary waterproofing. At the same time, the waterproof layer 4 can achieve the waterproofing of the roof top.

[0039] Among them, the reducing sealing sleeve 3 for the root is an upper-narrower-and-lower-wider circumferential sealing structure formed by cement mortar. When it is used to wrap the steel casing with a water stop ring 1, it can also achieve the sealing effect at different vertical positions of the joint between the wrapped steel casing with a water stop ring 1 and the waterproof layer 4, and the sealing diameter length decreases successively from bottom to top.

[0040] Among them, the structural form of the upper compression layer 6 can enhance the compressive durability strength of the roof while reducing the cracking probability, forming a self-reinforcing structural layer. It can also provide a diversion function for the periphery of the pipe-passing body 2 through the different high and low horizontal positions of itself. The upper compression layer 6 is a self-level difference layer body. The upper compression layer 6 includes a high compression layer 6-1, a transition compression layer 6-2, and a low compression layer 6-3. The high compression layer 6-1, the transition compression layer 6-2, and the low compression layer 6-3 are connected in sequence as a whole. The transition compression layer 6-2 is inclined. The high side of the transition compression layer 6-2 is connected to one side of the high compression layer 6-1, and the low side of the transition compression layer 6-2 is connected to one side of the low compression layer 6-3. The low compression layer 6-3 is close to the roof edge 20, and the high compression layer 6-1 is far from the roof edge 20. The caulking rubber ring 7 is inclined on the transition compression layer 6-2, and the top surface of the caulking rubber ring 7 is flush with the top surface of the transition compression layer 6-2, so as to achieve two-way diversion around the pipe-passing body 2, break the water accumulation condition formed in the circumferential position of the pipe-passing body 2, and form a reasonable and durable structural condition for quickly diverting rainwater in multiple directions.

[0041] On the one hand, the diversion direction of the upper compression layer 6 is led out from the high compression layer 6-1 to a position far from the roof edge 20 and discharged from the drainage system near the center of the roof at other positions. On the other hand, it is led out from the low compression layer 6-3 to a position close to the roof edge 20 and discharged from the drainage system around the parapet wall, so as to form a structural form for quickly diverting and avoiding water accumulation around the pipe-passing body 2, and it can be durably used in case of continuous rainfall or other bad weather.

[0042] Combined Figure 1 As shown, in this specific embodiment, the waterproof layer is protected by the concrete pouring layer, and the upper compression layer 6 can improve the strength of the concrete pouring layer. The following technical solutions are specifically adopted: including the concrete pouring layer 5, the upper compression layer 6, and the caulking rubber ring 7; there is a concrete pouring layer 5 on the upper side of the waterproof layer 4. The concrete pouring layer 5 can protect the waterproof layer 4. There is an upper compression layer 6 on the upper side of the concrete pouring layer 5. The upper compression layer 6 can improve the strength of the concrete pouring layer 5, improve the antioxidant performance at the same time, and reduce the degree of aging and damage. The upper compression layer 6 and the steel casing pipe 1 with a water stop ring are sealed through the caulking rubber ring 7. The caulking rubber ring 7 is a one-component polyurethane sealant. The one-component polyurethane sealant is a solvent-free one-component room-temperature curing sealant; the caulking rubber ring 7 is used to achieve the seal between the upper compression layer 6 and the steel casing pipe 1 with a water stop ring. The caulking rubber ring 7 can improve the connection strength and seal, and is not easy to crack, such as Figure 3As shown, the concrete pouring layer 5 includes a cement mortar leveling layer 5-1, a wire mesh 5-2, and a concrete casting body 5-3. The wire mesh 5-2 is arranged on the upper side of the cement mortar leveling layer 5-1, and the concrete casting body 5-3 is arranged on the upper side of the wire mesh 5-2. The cement mortar leveling layer 5-1 can achieve leveling, while the wire mesh 5-2 can improve the connection strength between the cement mortar leveling layer 5-1 and the concrete casting body 5-3, such as Figure 5 As shown, the upper compression layer 6 includes a curing agent layer 61 and a floor paint layer 62. The floor paint layer 62 is arranged on the upper surface of the curing agent layer 61. The curing agent layer 61 can penetrate into the concrete casting body 5-3, which is convenient for improving the strength and not easy to crack. At the same time, the floor paint layer 62 can improve the antioxidant performance and reduce the degree of aging and damage.

[0043] Combined with Figure 1 As shown, in this specific embodiment, the sealing between the pipe penetrating body and the steel casing with a water stop ring is achieved through a sealing colloid, which can improve the sealing performance. The specific technical solution is as follows: it includes a pipe penetrating body 2 and a sealing colloid 8. The pipe penetrating body 2 is inserted into the inside of the steel casing 1 with a water stop ring. The outer side wall of the pipe penetrating body 2 and the inner side wall of the steel casing 1 with a water stop ring are sealed through the sealing colloid 8. The sealing is achieved through the sealing colloid 8, so that water is not easy to enter the room from the outer side wall of the pipe penetrating body 2 and the inner side wall of the steel casing 1 with a water stop ring.

[0044] Combined with Figure 1 As shown, in this specific embodiment, in order to improve the waterproof performance, the water guiding method is adopted to reduce the contact between water and the pipe penetrating body and the steel casing with a water stop ring. The specific technical solution is as follows: it includes a water guiding seat body 9 and a sealing paste 10. The upper end surface of the steel casing 1 with a water stop ring is sealed with the pipe penetrating body 2 through the sealing paste 10. The sealing paste 10 can achieve the upper end sealing of the pipe penetrating body 2. The water guiding seat body 9 is sleeved on the outer side of the pipe penetrating body 2, and the inner side wall of the water guiding seat body 9 is sealed with the sealing paste 10. The water guiding seat body 9 can achieve rapid water guiding, such as Figure 5 As shown, the water guiding seat body 9 includes a straight sleeve 9-1, a conical water guiding pipe 9-2, a water guiding boss 9-3, and a sealing ring body 9-4. The lower end of the straight sleeve 9-1 is integrally connected with the conical water guiding pipe 9-2, and the conical water guiding pipe 9-2 can achieve water guiding. The bottom of the conical water guiding pipe 9-2 is connected with the water guiding boss 9-3. The sealing ring body 9-4 is installed on the inner side wall of the straight sleeve 9-1, and the sealing ring body 9-4 can achieve sealing with the outer side wall of the pipe penetrating body 2. The upper end surface of the water guiding boss 9-3 is provided with several concave water guiding grooves 9-31. The water guiding boss 9-3 is a frustum of a cone, and its interior is coaxially communicated with the conical water guiding pipe 9-2. The water guiding grooves 9-31 are uniformly arranged along the radial direction of the water guiding boss 9-3, and the water guiding grooves 9-31 can achieve water guiding.

[0045] The utility model is conducive to being used in the first or subsequent renovation and repair of the roof, especially applicable to the roof renovation work of old residential areas, and is conducive to standardizing the unified treatment method of repair.

[0046] The working principle of the utility model is as follows:

[0047] During construction, first, a reducing sealing sleeve 3 is used at the root to achieve the sealed connection between the roof top and the steel casing 1 with a water stop ring, and the outer surface of the reducing sealing sleeve 3 at the root is rounded. Its rounded structure form is convenient for the subsequent waterproof construction. Then, the additional waterproof coiled material 4-1 is constructed on the outer surfaces of the roof top, the reducing sealing sleeve 3 at the root, and the steel casing 1 with a water stop ring. At the same time, the additional waterproof coiled material 4-1 is used to achieve primary waterproofing. Then, the overall waterproof construction is achieved through the waterproof layer 4. The waterproof layer 4 is a commercially available waterproof coating or waterproof coiled material. Then, the protection of the waterproof layer 4 is achieved through the concrete pouring layer 5, and the upper compression layer 6 is used to improve the strength of the concrete pouring layer 5, so that the concrete pouring layer 5 is not prone to cracking. At the same time, a caulking rubber ring 7 is used to achieve caulking. The pipe penetrating body 2 is inserted into the steel casing 1 with a water stop ring, and sealing is achieved through the sealing colloid 8. A water guiding seat body 9 is installed on the pipe penetrating body 2 to achieve water guiding, which can resist the continuous precipitation under heavy rainfall conditions and prevent the continuous strong rain from quickly entering the lower side of the waterproof layer and the room in a short time.

Claims

1. A flow-dividing composite structure layer specially used for pipe penetration at the edge of a roof, characterized in that: The invention comprises a steel casing with a water stop ring (1), a pipe body (2), a reducing seal sleeve for the root (3), a waterproof layer (4), a concrete pouring layer (5), an upper pressure-resistant layer (6), a caulking rubber ring (7), a sealing colloid (8), a water guide seat (9), and a sealing paste (10); the steel casing with a water stop ring (1) is placed in the roof top and extends out of the roof top, the pipe body (2) is connected to the inside of the steel casing with a water stop ring (1), the outer wall of the pipe body (2) and the inner wall of the steel casing with a water stop ring (1) are sealed by the sealing colloid (8), and a reducing seal sleeve for the root is provided at the contact point between the steel casing with a water stop ring (1) and the roof top. (3), a waterproof layer (4) is arranged on the upper surface of the roof top, the outer surface of the reducer sealing sleeve (3) at the root, and the outer wall of the steel casing with a water stop ring (1), a concrete casting layer (5) is arranged on the upper side of the waterproof layer (4), an upper pressure-resistant layer (6) is arranged on the upper side of the concrete casting layer (5), the upper pressure-resistant layer (6) and the steel casing with a water stop ring (1) are sealed by a caulking rubber ring (7), the upper end surface of the steel casing with a water stop ring (1) is sealed with the pipe penetration body (2) by a sealing paste (10), the water guide seat body (9) is sleeved on the outer side of the pipe penetration body (2), and the inner side wall of the water guide seat body (9) is sealed with the sealing paste (10).

2. The flow-dividing composite structure layer specially used for the pipe-penetrating position at the edge of the roof according to claim 1, characterized in that: The upper pressure-resistant layer (6) is a layer body with a height difference. The upper pressure-resistant layer (6) comprises a high pressure-resistant layer (6-1), a transition pressure-resistant layer (6-2) and a low pressure-resistant layer (6-3). The high pressure-resistant layer (6-1), the transition pressure-resistant layer (6-2) and the low pressure-resistant layer (6-3) are sequentially connected as a whole. The transition pressure-resistant layer (6-2) is arranged obliquely. The high side of the transition pressure-resistant layer (6-2) is connected to one side of the high pressure-resistant layer (6-1). The low side of the transition pressure-resistant layer (6-2) is connected to one side of the low pressure-resistant layer (6-3). The low pressure-resistant layer (6-3) is arranged close to the edge of the roof (20), and the high pressure-resistant layer (6-1) is arranged away from the edge of the roof (20). The caulking rubber ring (7) is arranged obliquely on the transition pressure-resistant layer (6-2). The top surface of the caulking rubber ring (7) is arranged flush with the top surface of the transition pressure-resistant layer (6-2).

3. The flow-dividing composite structure layer specially used for the pipe-penetrating position at the edge of the roof according to claim 1, characterized in that: The outer side wall of the root reducing seal sleeve (3) has a fillet of R50-80 mm.

4. The flow-dividing composite structure layer specially used for the pipe-penetrating position at the edge of the roof according to claim 1, characterized in that: An additional waterproofing coil (4-1) is provided at the bottom of the waterproofing layer (4) corresponding to the root-use reducing sealing sleeve (3) and the steel casing with a water stop ring (1), and one end of the additional waterproofing coil (4-1) extends to the upper surface of the roof top.

5. The flow-dividing composite structure layer specially used for the pipe-penetrating position at the edge of the roof according to claim 1, characterized in that: The concrete casting layer (5) comprises a cement mortar leveling layer (5-1), a steel wire mesh (5-2), and a concrete casting body (5-3); the steel wire mesh (5-2) is arranged on the upper side of the cement mortar leveling layer (5-1), and the concrete casting body (5-3) is arranged on the upper side of the steel wire mesh (5-2).

6. The flow-dividing composite structure layer specially used for the pipe-penetrating position at the edge of the roof according to claim 1, characterized in that: The upper pressure-resistant layer (6) comprises a curing agent layer (61) and a floor-leveling paint layer (62); the floor-leveling paint layer (62) is provided on the upper surface of the curing agent layer (61).

7. The flow-dividing composite structure layer specially used for the pipe-penetrating position at the edge of the roof according to claim 1, characterized in that: The caulking rubber ring (7) is a single-component polyurethane sealant.

8. The flow-dividing composite structure layer specially used for the pipe-penetrating position at the edge of the roof according to claim 1, characterized in that: The water guide seat body (9) comprises a straight sleeve (9-1), a tapered water guide pipe (9-2), a water guide boss (9-3), and a sealing ring body (9-4); the lower end of the straight sleeve (9-1) is integrally connected to the tapered water guide pipe (9-2), the bottom of the tapered water guide pipe (9-2) is connected to the water guide boss (9-3), and the sealing ring body (9-4) is installed on the inner side wall of the straight sleeve (9-1).

9. The flow-dividing composite structure layer specially used for the pipe-penetrating position at the edge of the roof according to claim 8, characterized in that: The upper end surface of the water-conducting boss (9-3) is provided with a plurality of inwardly concave water-conducting grooves (9-31).

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