Circumferential wrapping steel-concrete thermal insulation structural body for old community building roof
By adopting a circumferentially wrapped steel-concrete insulation structure on the roof of old communities in cold areas, the problems of failure of the waterproof layer on the outer part of the exhaust pipe and the layering of the waterproof coil are solved, and better insulation and waterproof performance are achieved.
Patent Information
- Application Number
- CN202421956022.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-13
AI Technical Summary
During the roof repair process of old communities in cold areas, the conical table poured on the outside of the exhaust pipe is prone to cracking during exposure to the sun, resulting in the failure of the waterproof layer and rainwater entering the roof. The waterproof coil at the top of the exhaust pipe is prone to layering, affecting the insulation and sealing performance.
A circumferentially wrapped steel-concrete insulation structure is adopted, including a steel plate ring body, a lower waterproof layer, a lower insulation board, an upper insulation board, a leveling layer, a cement mortar layer, an upper waterproof layer, a concrete conical table, an upper seal body and a sealing paste. Through the mutual cooperation of these components, the circumferential insulation and waterproofing at the exhaust pipe are achieved.
It effectively improves the insulation performance between the roof and the pipe wall, ensures that rainwater does not easily enter the exhaust pipe, prevents the waterproof layer from forming, and improves the overall waterproof and sealing performance.
Smart Images
Figure CN222976260U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of thermal insulation, and particularly relates to a circumferentially wrapped steel-concrete thermal insulation structure body for the roof of an old residential building. Background Technique
[0002] Roof exhaust ducts are mainly used to discharge the water vapor under the thermal insulation roof. If the thermal insulation layer and the leveling layer are not dry enough or it is difficult to dry them, exhaust ducts should be left when laying the waterproof coiled material to discharge the moisture under the coiled material layer. This roofing method is called an exhaust roof. If no exhaust ducts are left, the moisture in the thermal insulation layer and the leveling layer is sealed under the waterproof coiled material layer. Once the temperature is relatively high (especially in the hot summer), the moisture evaporates and expands in volume, causing the coiled material to bulge, resulting in cracking and damage of the waterproof coiled material layer and causing roof leakage. To prevent the thermal insulation effect from being affected when there is water vapor in the thermal insulation roof and to avoid quality defects such as mildew on the indoor ceiling, ventilation holes are added to the thermal insulation roof. PVC pipes for ventilation holes are set in the loose materials of the thermal insulation and slope-forming layers. The pipes are perforated, and the ventilation pipes need to be arranged at regular intervals according to the specification requirements. The row spacing of the ventilation pipes does not exceed six meters, the pipes are connected to each other every six meters, and one roof ventilation pipe is made every eight meters. During the roof repair process of old residential buildings in cold regions, there is no standardized unified thermal insulation method for the roof exhaust pipes formed according to the low temperature in winter in cold regions. After the installation of the roof exhaust pipes in old residential buildings in cold regions, the following problems will occur:
[0003] First, the conical platform cast on the outer side of the exhaust pipe will crack during long-term exposure to the sun, which cannot protect the waterproof layer on the exhaust pipe, and rainwater is likely to enter the roof from the outer side wall of the exhaust pipe, resulting in the inability to discharge water vapor.
[0004] Second, the waterproof coiled material at the top of the exhaust pipe is prone to delamination, resulting in the overall failure of the waterproof performance, causing rainwater to enter the waterproof layer and unable to be discharged, affecting the overall thermal insulation and sealing performance of the building roof. Content of the Utility Model
[0005] To solve the problems mentioned in the above background technique; the purpose of the utility model is to provide a circumferentially wrapped steel-concrete thermal insulation structure body for the roof of an old residential building.
[0006] A circumferentially wrapped steel-concrete insulation structure for the roof of an old residential community building of the present utility model includes a steel plate ring body, a lower waterproof layer, a lower insulation board, an upper insulation board, a leveling layer, a cement mortar layer, an upper waterproof layer, a concrete conical platform, an upper sealing body, and a sealing paste; the steel plate ring body is arranged on the roof, the steel plate ring body is fixedly sleeved at the bottom of the exhaust pipe, the lower waterproof layer is arranged on the roof, and the lower waterproof layer is arranged on the upper side of the steel plate ring body. An upper side of the lower waterproof layer is provided with a lower insulation board, an upper side of the lower insulation board is provided with an upper insulation board, an upper side of the upper insulation board is provided with a leveling layer, a cement mortar layer is arranged at a contact position between the leveling layer and the exhaust pipe, the upper waterproof layer is arranged on outer surfaces of the leveling layer, the cement mortar layer, and the exhaust pipe, a concrete pouring layer is arranged on the upper waterproof layer on the upper side of the leveling layer, a concrete conical platform is arranged on an outer side of the upper waterproof layer on an outer side of the exhaust pipe, an upper end of the concrete conical platform is provided with an upper sealing body, the upper sealing body is hermetically connected to an upper end of the upper waterproof layer, a sealing paste is arranged at an upper end of the upper sealing body, and the sealing paste is hermetically sealed to the upper sealing body and the exhaust pipe respectively.
[0007] As a preferred solution, an aluminum foil heat insulation cotton is arranged between the upper insulation board and the lower insulation board.
[0008] As a preferred solution, a wire mesh is arranged between the lower insulation board and the leveling layer.
[0009] As a preferred solution, an outer side of the cement mortar layer is arc-shaped.
[0010] As a preferred solution, the concrete conical platform includes a concrete layer and a support frame body, and the support frame body is arranged inside the concrete layer.
[0011] As a preferred solution, the support frame body includes an upper outer ring body, a lower outer ring body, an upper inner ring body, a lower inner ring body, ring connection cross bars, ring connection longitudinal bars, and support bars; an inside of the upper outer ring body is connected to an outer side wall of the upper inner ring body through several ring connection cross bars, an inside of the lower outer ring body is connected to an outer side wall of the lower inner ring body through several ring connection cross bars, the upper outer ring body and the upper inner ring body are connected through several ring connection longitudinal bars, and the upper and lower ring connection cross bars are connected through support bars.
[0012] As a preferred solution, the upper sealing body includes an outer sleeve cylinder and a sealing colloid, and the sealing colloid is arranged inside the outer sleeve cylinder.
[0013] As a preferred solution, the outer sleeve cylinder includes a cylindrical cylinder and a support seat; a bottom outer side of the cylindrical cylinder is connected to the support seat, and a concave groove body is formed on an inner side wall of the cylindrical cylinder, and several connecting columns are arranged on an inner side wall of the groove body.
[0014] As a preferred solution, a through hole is formed in a middle of the connecting column, and several small holes are formed on an outer side wall of the connecting column, and the several small holes are communicated with the through hole.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] The present utility model is a thermal insulation structure form applicable to the roofs of buildings in cold regions, specifically for circumferentially wrapping and insulating exhaust pipes or other tubular convex structures. It is adapted to the roof exhaust pipes or other tubular convex structure forms, which is beneficial to improving the overall thermal insulation performance of the building roof. In terms of thermal insulation performance, it effectively improves the circumferential thermal insulation performance at the weak thermal insulation area between the roof and the pipe wall. The present utility model realizes the basic exhaust performance in the circumferential thermal insulation structure form at the exhaust pipe through the mutual cooperation of a steel plate ring body, a lower waterproof layer, a lower thermal insulation board, an upper thermal insulation board, a leveling layer, a cement mortar layer, an upper waterproof layer, a concrete conical platform, an upper sealing body, and a sealing paste. At the same time, it can ensure the waterproofness of the roof, making it difficult for rainwater to enter from the outer side wall of the exhaust pipe. Meanwhile, the overall structure has a unified and uniform connection strength, reducing the probability of local delamination of the waterproof layer. The specific advantages are as follows:
[0017] 1. The thermal insulation is realized through two layers of upper and lower thermal insulation boards, so that its thermal insulation performance forms a circumferential wrap and the thermal insulation effect is uniform. At the same time, the exhaust pipe can exhaust the thermal insulation layer, making it difficult for the thermal insulation layer to have water vapor.
[0018] 2. Aluminum foil heat insulation cotton is used to achieve heat insulation, which can improve the heat insulation performance.
[0019] 3. The waterproof layer outside the exhaust pipe is strengthened and protected through a concrete conical platform, making it difficult for rainwater to enter from the outer side wall of the exhaust. The end of the waterproof layer is sealed by an upper sealing body, making it difficult for water to enter and cause the end of the waterproof layer to fall off.
[0020] 4. A sealing paste is used to seal between the exhaust pipe and the upper sealing body, which can improve the overall sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] For ease of explanation, the present utility model is described in detail by the following specific embodiments and accompanying drawings.
[0022] Figure 1 is a schematic structural view of the present utility model;
[0023] Figure 2 is a schematic structural view of the steel plate ring body in the present utility model;
[0024] Figure 3 is a cross-sectional view of the lower thermal insulation board, the upper thermal insulation board, and the leveling layer in the present utility model;
[0025] Figure 4 is a schematic structural view of the support frame body in the present utility model;
[0026] Figure 5 is a schematic structural view of the upper sealing body in the present utility model;
[0027] Figure 6 This is a schematic structural view of the connecting column in the present utility model.
[0028] In the figure: 1 - exhaust pipe; 2 - steel plate ring body; 3 - lower waterproof layer; 4 - lower thermal insulation board; 5 - upper thermal insulation board; 6 - leveling layer; 7 - cement mortar layer; 8 - upper waterproof layer; 9 - concrete conical platform; 10 - upper seal body; 11 - sealant paste;
[0029] 2 - 1 - welding hole;
[0030] 4 - 1 - aluminum foil heat insulation cotton;
[0031] 5 - 1 - wire mesh;
[0032] 8 - 1 - additional waterproof layer;
[0033] 9 - 1 - upper outer ring body; 9 - 2 - lower outer ring body; 9 - 3 - upper inner ring body; 9 - 4 - lower inner ring body; 9 - 5 - ring connecting cross bar; 9 - 6 - ring connecting longitudinal bar; 9 - 7 - support rod;
[0034] 10 - 1 - cylindrical barrel; 10 - 2 - support seat; 10 - 3 - groove; 10 - 4 - connecting column;
[0035] 10 - 41 - through hole; 10 - 42 - small hole. 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 drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in 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 essence. Any modification of the structure, change of the ratio 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 description of well - known structures and technologies is 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 of the present utility model are shown in the drawings, while other details less related to the present utility model are omitted.
[0038] Such as Figures 1 to 6As shown in the figure, the insulation object of the circumferentially wrapped steel-concrete insulation structure for the roof of old residential buildings in this specific embodiment is based on the exhaust pipe 1. During the laying process, it can not only ensure the circumferential insulation performance of the exhaust pipe 1, but also improve the insulation performance of the building roof. Among them, the exhaust pipe 1 is used to realize the exhaust of the external insulation layer of the building roof. At the same time, the steel plate ring 2 is used to realize the circumferential support of the exhaust pipe 1 and the covering of the circumferential gap, which is conducive to cooperating with other structural forms to achieve the sealing effect of circumferential insulation. The specific technical solutions are as follows: It includes a steel plate ring 2, a lower waterproof layer 3, a lower insulation board 4, an upper insulation board 5, and a leveling layer 6; a steel plate ring 2 is welded to the bottom of the exhaust pipe 1, and a welding hole 2-1 (as Figure 2 shown) is opened at the bottom of the steel plate ring 2. The exhaust pipe 1 is arranged in the welding hole 2-1, and the connection with the exhaust pipe 1 is realized by welding. The steel plate ring 2 is arranged on the roof, the lower waterproof layer 3 is arranged on the roof, and the lower waterproof layer 3 is arranged on the upper side of the steel plate ring 2. The lower waterproof layer 3 is a commercially available waterproof roll. The lower waterproof layer 3 can realize the waterproofing of the roof. The lower insulation board 4 is arranged on the upper side of the lower waterproof layer 3, the upper insulation board 5 is arranged on the upper side of the lower insulation board 4, and the lower insulation board 4 and the upper insulation board 5 are used to achieve double-layer insulation, which can improve the insulation performance. The leveling layer 6 is arranged on the upper side of the upper insulation board 5. As Figure 3 shown, an aluminum foil heat insulation cotton 4-1 is arranged between the upper insulation board 5 and the lower insulation board 4. The aluminum foil heat insulation cotton 4-1 can realize heat insulation and improve the heat insulation performance; a steel wire mesh 5-1 is arranged between the lower insulation board 4 and the leveling layer 6. The steel wire mesh 5-1 can be in contact with the leveling layer 6 and improve the integral strength of the leveling layer 6.
[0039] The utility model is not only applicable to the circumferential insulation of the exhaust pipe 1, but also can be used on other tubular convex structures on the building roof.
[0040] As Figure 1 shown, in this specific embodiment, the waterproofing between the external insulation layer of the building roof and the exhaust pipe is realized through the upper waterproof layer. The specific technical solutions are as follows: It includes a cement mortar layer 7 and an upper waterproof layer 8; a cement mortar layer 7 is arranged at the contact position between the leveling layer 6 and the exhaust pipe 1. The outer side of the cement mortar layer 7 is arc-shaped, and its arc can realize the connection between the upper waterproof layer 8 and the exhaust pipe 1. The upper waterproof layer 8 does not need to be bent, which is convenient for the construction of the waterproof roll. At the same time, an additional waterproof layer 8-1 is arranged between the exhaust pipe 1 and the leveling layer 6. The additional waterproof layer 8-1 is arranged at the bottom of the upper waterproof layer 8. The additional waterproof layer 8-1 can realize the primary waterproofing between the exhaust pipe 1 and the leveling layer 6, and the upper waterproof layer 8 can realize the secondary waterproofing between the exhaust pipe 1 and the leveling layer 6. The upper waterproof layer 8 is arranged on the outer surfaces of the leveling layer 6, the cement mortar layer 7, and the exhaust pipe 1. The upper waterproof layer 8 can realize the waterproofing of the external insulation layer of the building roof.
[0041] As Figure 1As shown in the figure, in this specific embodiment, the protection of the upper waterproof layer is achieved through the concrete layer and the concrete conical platform. The specific technical solution is as follows: It includes a concrete conical platform 9; a concrete pouring layer is arranged on the upper waterproof layer 8 on the upper side of the leveling layer 6, and a concrete conical platform 9 is arranged on the outer side of the upper waterproof layer 8 outside the exhaust pipe 1. The protection of the upper waterproof layer 8 is achieved by using the concrete pouring layer and the concrete conical platform 9. The concrete conical platform 9 includes a concrete layer and a support frame body. The support frame body is arranged inside the concrete layer, and the strength of the concrete layer is improved through the support frame body. For example, Figure 4 As shown in the figure, the support frame body includes an upper outer ring body 9-1, a lower outer ring body 9-2, an upper inner ring body 9-3, a lower inner ring body 9-4, a ring connecting cross bar 9-5, a ring connecting longitudinal bar 9-6, and a support bar 9-7; the inside of the upper outer ring body 9-1 is connected to the outer side wall of the upper inner ring body 9-3 through several ring connecting cross bars 9-5, and the inside of the lower outer ring body 9-2 is connected to the outer side wall of the lower inner ring body 9-4 through several ring connecting cross bars 9-5. The upper outer ring body 9-1 and the upper inner ring body 9-3 are connected through several ring connecting longitudinal bars 9-6, and the upper and lower ring connecting cross bars 9-5 are connected through support bars 9-7. The upper inner ring body 9-3 and the lower inner ring body 9-4 cooperate with the concrete layer to fix and press the upper waterproof layer, so that the waterproof layer is not prone to delamination or peeling. The upper outer ring body 9-1 and the lower outer ring body 9-2 can improve the strength of the concrete layer, and the ring connecting cross bars 9-5, the ring connecting longitudinal bars 9-6, and the support bars 9-7 can improve the strength between the upper outer ring body 9-1, the lower outer ring body 9-2, the upper inner ring body 9-3, and the lower inner ring body 9-4.
[0042] For example Figure 1 As shown in the figure, in this specific embodiment, the sealing of the end of the upper waterproof layer is achieved through the upper sealing body, and at the same time, a sealing paste is used for secondary sealing. The specific technical solution is as follows: It includes an upper sealing body 10 and a sealing paste 11; an upper sealing body 10 is arranged at the upper end of the concrete conical platform 9, and the upper sealing body 10 is hermetically connected to the upper end of the upper waterproof layer 8. The upper sealing body 10 can seal the end of the upper waterproof layer 8, so that the end of the upper waterproof layer 8 is not prone to delamination. A sealing paste 11 is arranged at the upper end of the upper sealing body 10, and the sealing paste 11 is hermetically sealed with the upper sealing body 10 and the exhaust pipe 1 respectively. The sealing paste 11 can achieve secondary sealing, so that rainwater is not likely to enter from the outer side wall of the exhaust pipe; the upper sealing body 10 includes an outer sleeve cylinder and a sealing colloid, and the sealing colloid is arranged inside the outer sleeve cylinder; For example Figure 5As shown, the outer sleeve cylinder includes a cylindrical cylinder 10-1 and a support base 10-2; the outer side of the bottom of the cylindrical cylinder 10-1 is connected with the support base 10-2, and the support base 10-2 can support on the concrete conical platform 9. When injecting sealing colloid into the cylindrical cylinder 10-1, it can achieve quick sealing with the exhaust pipe. An inwardly concave groove 10-3 is formed on the inner side wall of the cylindrical cylinder 10-1, and several connecting columns 10-4 are arranged on the inner side wall of the groove 10-3. After the sealing colloid is connected with the connecting columns 10-4, the connection strength between the cylindrical cylinder 10-1 and the sealing colloid can be improved; as Figure 6 As shown, a through hole 10-41 is formed in the middle of the connecting column 10-4, and several small holes 10-42 are formed on the outer side wall of the connecting column 10-4. The several small holes 10-42 are communicated with the through hole 10-41. After the sealing colloid enters the through hole 10-41 and overflows from the small holes 10-42, the connection strength between the connecting column 10-4 and the sealing colloid is high.
[0043] The working principle of this specific embodiment is as follows: during use, the exhaust pipe 1 is welded to the steel plate ring body 2, then the steel plate ring body 2 is placed on the roof, and then the lower waterproof layer 3 is bonded to the roof and the upper surface of the steel plate ring body 2 to achieve waterproofing of the roof through the lower waterproof layer 3. Then, a lower thermal insulation board 4, an aluminum foil heat insulation cotton 4-1, an upper thermal insulation board 5, and a wire mesh 5-1 are successively installed on the upper waterproof layer 8. After installation, leveling is carried out through the leveling layer 6, and the leveling layer 6 is concrete leveling or mortar leveling. At the same time, an arc is set through the cement mortar layer 7 at the contact point between the leveling layer 6 and the exhaust pipe 1, so that the upper waterproof layer 8 does not need to be bent during bonding, which can improve the bonding property of the upper waterproof layer 8 and improve the waterproof performance. A concrete pouring layer and a concrete conical platform 9 are arranged on the upper side of the upper waterproof layer 8. At the same time, the upper end of the upper waterproof layer 8 is sealed through the upper sealing body 10 on the upper side of the concrete conical platform 9, so that the end of the upper waterproof layer 8 is not easy to delaminate. The sealing paste 11 can achieve secondary sealing of the exhaust pipe, so that rainwater is not easy to enter from the outer side wall of the exhaust pipe, which can improve the waterproof performance.
[0044] The utility model is not only applicable to the periphery of the exhaust pipe 1 on the building roof, but also can be used for circumferential wrapping and heat insulation of other convex objects or convex tubular structures on the building roof. The operation process is convenient and standardized, which is beneficial to improving the overall heat insulation performance of the building roof in old communities in cold regions.
Claims
1. A circumferentially wrapped steel-concrete thermal insulation structure for the roof of old residential buildings, characterized in that: The invention comprises a steel plate ring body (2), a lower waterproof layer (3), a lower thermal insulation board (4), an upper thermal insulation board (5), a leveling layer (6), a cement mortar layer (7), an upper waterproof layer (8), a concrete cone platform (9), an upper sealing body (10) and a sealing paste (11); the steel plate ring body (2) is arranged on the roof, the steel plate ring body (2) is fixedly sleeved on the bottom of the exhaust pipe (1), the lower waterproof layer (3) is arranged on the roof, and the lower waterproof layer (3) is arranged on the upper side of the steel plate ring body (2), the lower thermal insulation board (4) is arranged on the upper side of the lower waterproof layer (3), the upper thermal insulation board (5) is arranged on the upper side of the lower thermal insulation board (4), the upper thermal insulation board (5) is arranged on the upper side of the upper thermal insulation board (5), the leveling layer (6) is arranged on the upper side of the leveling layer (6), and the lower thermal insulation board (4) is arranged on the upper side of the upper thermal insulation board (5). A cement mortar layer (7) is provided at the contact point between the leveling layer (6) and the exhaust pipe (1); an upper waterproof layer (8) is provided on the outer surface of the leveling layer (6), the cement mortar layer (7) and the exhaust pipe (1); a concrete pouring layer is provided on the upper waterproof layer (8) on the upper side of the leveling layer (6); a concrete cone platform (9) is provided on the outer side of the upper waterproof layer (8) on the outer side of the exhaust pipe (1); an upper sealing body (10) is provided at the upper end of the concrete cone platform (9); the upper sealing body (10) is sealingly connected to the upper end of the upper waterproof layer (8); a sealing paste (11) is provided at the upper end of the upper sealing body (10); the sealing paste (11) is respectively sealed with the upper sealing body (10) and the exhaust pipe (1).
2. The circumferentially wrapped steel-concrete thermal insulation structure for the roof of an old residential building according to claim 1 is characterized in that: Aluminum foil heat insulation cotton (4-1) is arranged between the upper heat insulation plate (5) and the lower heat insulation plate (4).
3. The circumferentially wrapped steel-concrete thermal insulation structure for the roof of an old residential building according to claim 1 is characterized in that: A steel wire mesh (5-1) is provided between the lower insulation board (4) and the leveling layer (6).
4. The circumferentially wrapped steel-concrete thermal insulation structure for the roof of an old residential building according to claim 1, characterized in that: The outer side of the cement mortar layer (7) is arc-shaped.
5. The circumferentially wrapped steel-concrete thermal insulation structure for the roof of old residential buildings according to claim 1 is characterized in that: The concrete cone platform (9) comprises a concrete layer and a support frame, and the support frame is arranged in the concrete layer.
6. The circumferentially wrapped steel-concrete thermal insulation structure for the roof of old residential buildings according to claim 5 is characterized by: The support frame comprises an upper outer ring body (9-1), a lower outer ring body (9-2), an upper inner ring body (9-3), a lower inner ring body (9-4), a ring connecting cross bar (9-5), a ring connecting longitudinal bar (9-6), and a support bar (9-7); the interior of the upper outer ring body (9-1) is connected to the outer side wall of the upper inner ring body (9-3) via a plurality of ring connecting cross bars (9-5), the interior of the lower outer ring body (9-2) is connected to the outer side wall of the lower inner ring body (9-4) via a plurality of ring connecting cross bars (9-5), the upper outer ring body (9-1) and the upper inner ring body (9-3) are connected via a plurality of ring connecting longitudinal bars (9-6), and the upper and lower ring connecting cross bars (9-5) are connected via a support bar (9-7).
7. The circumferentially wrapped steel-concrete thermal insulation structure for the roof of old residential buildings according to claim 1 is characterized by: The upper sealing body (10) comprises an outer sleeve body and a sealing colloid, and the sealing colloid is arranged inside the outer sleeve body.
8. The circumferentially wrapped steel-concrete thermal insulation structure for the roof of an old residential building according to claim 7, characterized in that: The outer sleeve body comprises a cylindrical cylinder (10-1) and a support seat (10-2); the support seat (10-2) is connected to the outside of the bottom of the cylindrical cylinder (10-1); an inwardly concave groove body (10-3) is provided on the inner side wall of the cylindrical cylinder (10-1); and a plurality of connecting columns (10-4) are provided on the inner side wall of the groove body (10-3).
9. The circumferentially wrapped steel-concrete thermal insulation structure for the roof of an old residential building according to claim 8, characterized in that: A through hole (10-41) is provided in the middle of the connecting column (10-4), and a plurality of small holes (10-42) are provided on the outer side wall of the connecting column (10-4), and the plurality of small holes (10-42) are connected to the through hole (10-41).