A pipe foundation construction device for a rainwater pipe network

Abstract

The utility model discloses a pipeline foundation construction device of rainwater pipe network relates to municipal construction technical field, including side support module and jacking module, jacking module includes bottom plate, inboard, reinforcing rib board and second end plate, inboard includes vertical part and inclined part, vertical part is detachably connected with the outer side board, and the first gap is established between inclined part and the outer side board, inboard still includes the inner recess that sets up in the middle part of vertical part, the pouring channel bottom communicates with the first gap, and the first gap bottom communicates with the pouring cavity, and the upper convex part is equipped with in the middle part of bottom plate. The surface forming bearing protrusion on the foundation is formed at the same time as pouring the foundation, when placing the pipeline on the bearing protrusion, can realize the overhead setting of the outer expansion part, thereby making the pipeline present the required inclination angle. The bearing protrusion adopts jacking module to realize the standardization operation, and compared with the scheme of adopting the brick pad, has higher construction precision, improves construction quality and the drainage performance of rainwater pipe network.

Description

Technical Field

[0001] This utility model relates to the field of municipal construction technology, specifically to a pipeline foundation construction device for rainwater pipe networks. Background Technology

[0002] A stormwater drainage network is a municipal infrastructure consisting of multiple interconnected pipes used for rainwater drainage to prevent urban flooding. Foundations are typically laid beneath the pipes to prevent them from sinking, thus avoiding problems such as pipe connections separating and leaks.

[0003] The pipe ends are provided with an outward expansion section (for connecting adjacent pipe ends). The outward expansion section needs to be installed in an elevated position (when the outward expansion section and the end of the pipe away from the outward expansion section are directly pressed onto the surface of the foundation, the angle of the pipe is not the angle required for drainage).

[0004] Traditional techniques typically use bricks for temporary pipe installation (for overhead expansion sections); then concrete is poured between the pipe and the foundation to form the base. However, brick installation is prone to errors and difficult to standardize, resulting in poor straightness between adjacent pipes and consequently reducing the drainage capacity of the stormwater network. Summary of the Invention

[0005] In order to overcome the problem of "large errors will occur when using bricks to support pipes" in the above-mentioned background technology, this utility model provides a pipe foundation construction device for rainwater pipe network.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: A pipeline foundation construction device for a rainwater pipe network includes a side support module and a top support module. The side support module includes an upright outer side plate. A casting cavity is provided below the top support module. The top support module includes a bottom plate, an inner side plate, a reinforcing rib plate, and a second end plate. The bottom edge of the inner side plate is fixedly connected to the bottom plate, the bottom edge of the second end plate is fixedly connected to the bottom plate, and the side edge of the inner side plate is fixedly connected to the side edge of the second end plate. The inner side plate includes a vertical part and an inclined part. The bottom end of the vertical part is fixedly connected to the top end of the inclined part. The vertical part is detachably connected to the outer side plate, and a first gap is provided between the inclined part and the outer side plate. The inner side plate also includes a concave part disposed in the middle of the vertical part. A casting channel is provided between the concave part and the outer side plate, and the bottom of the casting channel communicates with the first gap. The bottom of the first gap communicates with the casting cavity. The bottom plate has an upper convex part in the middle for forming a supporting protrusion, and the upper convex part has a box structure with an open bottom.

[0007] As a further optimization of this utility model, the cross-section of the concave portion is C-shaped.

[0008] As a further optimization of this utility model, the upper convex part includes an arc-shaped top plate, and the middle part of the arc-shaped top plate is concave.

[0009] As a further optimization of this utility model, the bottom surface of the arc-shaped top plate is adapted to the bottom surface of the outer surface of the pipe.

[0010] As a further optimization of this utility model, the upper convex portion further includes an inclined side plate and a first end plate; the top edge of the inclined side plate is fixedly connected to the arc-shaped top plate, the top edge of the first end plate is fixedly connected to the arc-shaped top plate, and the side edge of the inclined side plate is fixedly connected to the side edge of the first end plate.

[0011] As a further optimization of this utility model, the bottom plate has a rectangular opening in the middle, and the bottom of the upper protrusion is located at the rectangular opening; the bottom edge of the inclined side plate is fixedly connected to the bottom plate, and the bottom edge of the first end plate is fixedly connected to the bottom plate.

[0012] As a further optimization of this utility model, the top of the inclined side plate is provided with ventilation holes.

[0013] As a further optimization of this utility model, a sealing plug can be detachably installed inside the vent hole.

[0014] As a further optimization of this utility model, the bottom edge of the reinforcing rib is fixedly connected to the base plate and the upper protrusion, and the side edge of the reinforcing rib is fixedly connected to the inner side plate.

[0015] As a further optimization of this utility model, the reinforcing rib is provided with a wire-laying hole, which is located directly above the arc-shaped top plate.

[0016] In summary, this utility model has at least one of the following advantages: (1) This utility model has a simple structure and reliable function. While pouring the foundation, a supporting protrusion is formed on the surface of the foundation. When the pipe is placed on the supporting protrusion, the outer expansion section can be suspended, so that the pipe presents the required tilt angle. The supporting protrusion adopts a top support module to achieve standardized operation. Compared with the solution of using brick pads, it has higher construction accuracy, improves construction quality and drainage performance of rainwater pipe network.

[0017] (2) The concave part has a C-shaped cross section and the lateral opening points to the outer plate. A pouring channel is provided between the concave part and the outer plate. The bottom of the pouring channel is connected to the first gap, and the bottom of the first gap is connected to the pouring cavity. Users can pour concrete into the pouring cavity through the pouring channel, thereby avoiding the problem that the top of the pouring cavity is blocked by the top support module and it is difficult to pour concrete.

[0018] (3) Ventilation holes are used to connect the inner cavity of the upper convex part with the outside world; as the concrete fills the inner cavity of the upper convex part from bottom to top, the air in the inner cavity of the upper convex part is discharged through the ventilation holes, thereby avoiding the formation of a cavity in the inner cavity of the upper convex part, thus forming a complete supporting protrusion and improving the construction quality.

[0019] (4) The first gap is used for the side wing structure of the forming foundation. The side wing can replace the side support module to stop the concrete used for forming the pipe seat. Then the side support module and the top support module can be dismantled at the same time and quickly transferred to other construction nodes (without waiting for the pipe seat to harden), which improves the turnover frequency and construction efficiency and saves materials. Attached Figure Description

[0020] The present application will be further explained below with reference to the accompanying drawings: Figure 1 A front view diagram of the pipeline installation status; Figure 2 Left view schematic diagram of the supporting pipe structure for the protrusion; Figure 3 This is a schematic diagram of the overall structure of this utility model; Figure 4 This is a front view schematic diagram of the side support module and the top support module structure; Figure 5 A top view of the connection structure between the outer side panel and the top support module; Figure 6 This is a schematic diagram of the location of the concave part and the structure viewed from the left. Figure 7 This is a top-view schematic diagram of the upper convex structure; Figure 8 This is a side view of the upper convex structure; Figure 9 This is a front view diagram showing the location of the vent holes and the structure. Figure 10 A top-view diagram showing the laser beam passing through the wire hole; Figure 11 This is a front view diagram showing the location of the threading hole and the structure. Figure 12 This is a schematic diagram of the side support module structure; Figure 13 This is a left-side view of the location and structure of the sealing block; Figure 14 This is a front view schematic diagram of the side wing structure.

[0021] Explanation of reference numerals in the attached figures: In the picture, 1. Trench; 11. Subbase; 2. Foundation; 21. Supporting protrusion; 22. Side wing; 3. Tube seat; 4. Backfill layer; 5. Pipeline; 51. External expansion section; 6. Side support module; 61. Outer side panel; 62. Back support crossbar; 63. Diagonal brace; 64. Embedded block; 7. Top support module; 70. Casting cavity; 71. Base plate; 711. Upper protrusion; 7111. Arc-shaped top plate; 7112. First end plate; 7113. Inclined side plate; 71131. Vent hole; 71132. Sealing plug; 72. Inner side plate; 721. Vertical part; 722. Inclined part; 7220. First gap; 723. Concave part; 7230. Casting channel; 73. Reinforcing rib; 731. Wire hole; 74. Second end plate; 8. Laser line-laying instrument; 81. Laser beam; 9. Sealing block; 2a. The completed foundation; 3a. The completed pipe fitting. Detailed Implementation

[0022] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows: Reference Figures 1-2 Pipeline 5 is buried in trench 1. A cushion layer 11 (including gravel and / or crushed stone) is provided at the bottom of trench 1. A foundation 2 is provided above the cushion layer 11. A pipe seat 3 is provided above the foundation 2. Pipeline 5 is pressed onto the foundation 2. The pipe seat 3 clamps and limits the pipeline 5 from both sides. A backfill layer 4 is provided around the outer periphery of pipeline 5, the outer periphery of pipe seat 3 and the outer periphery of foundation 2.

[0023] Reference Figures 1-2 The upper surface of the foundation 2 is provided with several supporting protrusions 21, which are arranged discontinuously; the supporting protrusions 21 are arranged in a linear array. Since the pipe 5 has an outwardly expanding portion 51 at its end (for connecting adjacent pipe ends), the bottom of the outwardly expanding portion 51 is placed within the gap between adjacent supporting protrusions 21 and is suspended, thus avoiding contact between the supporting protrusions 21 and the top surface of the foundation 2, thereby preventing the pipe 5 from being pressed against the foundation 2 at an angle. The top surface of the supporting protrusion 21 has a concave arc-shaped structure, and the portion of the pipe 5 (excluding the supporting protrusion 21) is pressed against the top surface of the supporting protrusion 21, thus achieving temporary installation; then concrete is poured above the foundation 2, and after the concrete hardens, a pipe seat 3 is formed. The pipe seat 3 and the pipe 5 are integrally cast and fixedly connected through concrete, thereby achieving stable positioning of the pipe 5.

[0024] Reference Figures 1-4 This embodiment provides a pipe foundation construction device for a rainwater pipe network, which is used for casting and forming the foundation 2 and the supporting protrusion 21 on the one hand, and for casting and forming the pipe seat 3 on the other hand.

[0025] Reference Figure 3and Figure 4 A pipe foundation construction device for a rainwater pipe network includes a side support module 6 and a top support module 7. The side support modules 6 are arranged in pairs, with the two side support modules 6 arranged symmetrically from left to right, and are used to form the left and right side walls of the foundation 2 and the left and right side walls of the pipe seat 3. The top support module 7 is used to form the upper surface of the foundation 2 and support the upper surface of the protrusion 21.

[0026] Reference Figure 3 and Figure 4 The side support module 6 includes an upright outer side plate 61; the top support module 7 has a pouring cavity 70 below it. The pouring cavity 70 is located between the top support module 7 and the pad layer 11. The user pours concrete into the pouring cavity 70, and after the concrete hardens, the foundation 2 and the supporting protrusion 21 are formed.

[0027] Reference Figure 4 and Figure 5 The top support module 7 has a box-like structure with an open top and a closed bottom. The top support module 7 includes a base plate 71, inner side plates 72, reinforcing ribs 73, and a second end plate 74. The bottom edge of the inner side plate 72 is fixedly connected to the outer edge of the base plate 71 (e.g., through welding to achieve a sealed connection and prevent grout leakage), and the bottom edge of the second end plate 74 is fixedly connected to the outer edge of the base plate 71 (e.g., through welding to achieve a sealed connection and prevent grout leakage). The side edges of the inner side plates 72 and the side edges of the second end plates 74 are also fixedly connected (e.g., through welding to achieve a sealed connection and prevent grout leakage). A single top support module 7 includes one base plate 71, two inner side plates 72, several reinforcing ribs 73, and two second end plates 74. The two inner side plates 72 are arranged in a U-shape, and the two second end plates 74 are arranged in a U-shape. The two inner side plates 72 and the two second end plates 74 are joined together to form a U-shape, thus fitting the rectangular outer edge of the base plate 71.

[0028] Reference Figures 4-6 The inner side plate 72 includes a vertical part 721 and an inclined part 722; the bottom end of the vertical part 721 is fixedly connected to the top end of the inclined part 722 (for example, by an integral bending seal or by welding seal to prevent grout leakage); the vertical part 721 is detachably connected to the outer side plate 61 (for example, by bolts); a first gap 7220 is provided between the inclined part 722 and the outer side plate 61; the bottom of the first gap 7220 communicates with the casting cavity 70.

[0029] Reference Figures 4-6 The inner side plate 72 also includes a recessed portion 723 disposed in the middle of the vertical portion 721. The cross-section of the recessed portion 723 is C-shaped and its lateral opening points towards the outer side plate 61. A casting channel 7230 is provided between the recessed portion 723 and the outer side plate 61, and the bottom of the casting channel 7230 communicates with the first gap 7220.

[0030] At least two pouring channels 7230 and two first gaps 7220 are provided on the outer periphery of the same support module 7. The two pouring channels 7230 and the two first gaps 7220 are respectively connected. One pouring channel 7230 is used for pouring concrete into it, and the other pouring channel 7230 is used for venting. When the user pours concrete into one of the pouring channels 7230, the concrete flows into the pouring cavity 70 through the corresponding first gap 7220. The air in the pouring cavity 70 is discharged through the other first gap 7220 and the other pouring channel 7230, which ensures smooth concrete injection and avoids the formation of pouring cavities.

[0031] Reference Figure 6 The upper part of the outer wall of the concave portion 723 is fixedly connected to the vertical portion 721 (for example, by welding to achieve a sealed fixed connection, thereby preventing grout leakage); the lower part of the outer wall of the concave portion 723 is fixedly connected to the inclined portion 722 (for example, by welding to achieve a sealed fixed connection, thereby preventing grout leakage).

[0032] Reference Figures 4-5 , Figure 7 The base plate 71 has an upper protrusion 711 in the middle for forming the supporting protrusion 21. The upper protrusion 711 has a box structure with an open bottom and a closed top. The liquid level of the concrete in the pouring cavity 70 gradually rises until it fills the inner cavity of the upper protrusion 711. After the concrete in the inner cavity of the upper protrusion 711 hardens, the supporting protrusion 21 is formed. After the concrete in the inner cavity of the pouring cavity 70 hardens, the foundation 2 is formed.

[0033] Reference Figure 1 and Figure 4 The upper protrusion 711 includes an arc-shaped top plate 7111, the middle of which is concave. The bottom surface of the arc-shaped top plate 7111 is adapted to the bottom surface of the outer surface of the pipe 5. The bottom surface of the arc-shaped top plate 7111 is used to form the top surface supporting the protrusion 21, and the top surface supporting the protrusion 21 is used to support and limit the bottom surface of the outer surface of the pipe 5. Thus, the bottom surface of the arc-shaped top plate 7111, the top surface supporting the protrusion 21, and the bottom surface of the outer surface of the pipe 5 are adapted to each other, so that the bottom surface of the outer surface of the pipe 5 can fit against the top surface supporting the protrusion 21, avoiding the problem of damage to the top surface supporting the protrusion 21 due to concentrated force (the pressure borne by the top surface supporting the protrusion 21 comes from the weight of the pipe 5).

[0034] Reference Figures 4-5 , Figure 7The upper protrusion 711 also includes inclined side plates 7113 and first end plates 7112; the top edge of the inclined side plate 7113 is fixedly connected to the outer edge of the arc-shaped top plate 7111 (e.g., by welding to achieve a sealed connection, thereby preventing grout leakage), the top edge of the first end plate 7112 is fixedly connected to the outer edge of the arc-shaped top plate 7111 (e.g., by welding to achieve a sealed connection, thereby preventing grout leakage), and the side edge of the inclined side plate 7113 is fixedly connected to the side edge of the first end plate 7112 (e.g., by welding to achieve a sealed connection, thereby preventing grout leakage). The same upper protrusion 711 includes an arc-shaped top plate 7111, two inclined side plates 7113, and two first end plates 7112; the two inclined side plates 7113 are arranged in a U-shape, the two first end plates 7112 are arranged in a U-shape, and the two inclined side plates 7113 and the two first end plates 7112 are fixedly connected in a U-shape, thereby adapting to the rectangular outer edge of the arc-shaped top plate 7111.

[0035] Reference Figure 7 The bottom plate 71 has a rectangular opening in the middle, and the bottom of the upper protrusion 711 is located at the rectangular opening; the bottom edge of the inclined side plate 7113 is fixedly connected to the bottom plate 71 (for example, by welding to achieve a sealed fixed connection, thereby avoiding grout leakage), and the bottom edge of the first end plate 7112 is fixedly connected to the bottom plate 71 (for example, by welding to achieve a sealed fixed connection, thereby avoiding grout leakage).

[0036] Reference Figure 8 The top of the inclined side plate 7113 is inclined inward with an inclination angle R of 5 degrees to 25 degrees; then the inclination angle of the side wall of the corresponding supporting protrusion 21 is 5 degrees to 25 degrees, so as to facilitate the demolding between the top support module 7 and the supporting protrusion 21.

[0037] Reference Figure 9 The inclined side plate 7113 has a vent hole 71131 at the top. The vent hole 71131 is used to connect the inner cavity of the upper protrusion 711 with the outside. During the process of concrete filling the inner cavity of the upper protrusion 711 from bottom to top, the air in the inner cavity of the upper protrusion 711 is discharged through the vent hole 71131, thereby preventing the formation of a cavity in the inner cavity of the upper protrusion 711, and thus forming a complete supporting protrusion 21.

[0038] Reference Figure 9 A sealing plug 71132 (e.g., made of rubber material) is detachably installed inside the vent 71131. The rubber sealing plug 71132 can be installed inside the vent 71131 by friction to seal the vent 71131. This is to prevent a large amount of concrete from flowing out of the inner cavity of the upper protrusion 711 through the vent 71131, thereby preventing a cavity from appearing at the top of the inner cavity of the upper protrusion 711 and ensuring that the supporting protrusion 21 can be formed completely.

[0039] Reference Figure 4The bottom edge of the reinforcing rib 73 is fixedly connected to the base plate 71 and the upper protrusion 711 (e.g., by welding), and the side edge of the reinforcing rib 73 is fixedly connected to the inner side plate 72 (e.g., by welding). The reinforcing rib 73 is used to improve the structural strength of the top support module 7, thereby preventing deformation at the connection position between the base plate 71 and the inner side plate 72, and preventing deformation at the connection position between the base plate 71 and the upper protrusion 711, thus improving the service life of this utility model.

[0040] Reference Figure 10 Multiple support modules 7 are arranged in a straight line, and adjacent second end plates 74 are directly attached to each other and detachably connected by bolts, thereby connecting multiple support modules 7 into a whole for forming a longer foundation 2.

[0041] Reference Figure 11 The reinforcing rib 73 is provided with a wire-laying hole for wire laying (including laser wire laying and manual wire laying), and the wire-laying hole is located directly above the arc-shaped top plate 7111.

[0042] Reference Figure 10 When using laser line laying: the user moves the positions of multiple top support modules 7 (which need to be adapted to the position of the side support modules 6, and the bottom end of the outer side plate 61 can move slightly when inserted into the soil layer) until the laser beam 81 can pass through the line laying holes corresponding to multiple top support modules 7 simultaneously. This allows multiple upper protrusions 711 to be arranged in a straight line, and thus the multiple supporting protrusions 21 formed are in a straight line, so that the straight pipe 5 can be stably pressed onto the multiple supporting protrusions 21. The laser line laying instrument 8 can emit a laser beam 81. The laser line laying instrument 8 is a conventional existing technology in the industry and will not be described in detail. When the laser beam 81 is difficult to observe with the naked eye, water mist or dust can be sprayed into the air to improve the visibility of the laser beam 81.

[0043] When using laser line laying: the user passes the rope through the line laying holes corresponding to the multiple top support modules 7 and tensions it, then moves the position of the multiple top support modules 7 (it needs to be adapted to the position of the side support module 6, and the bottom end of the outer plate 61 can be slightly moved in the soil layer) until the rope is straight rather than multi-segmented, so that the multiple upper protrusions 711 can be arranged in a straight line, and the multiple supporting protrusions 21 formed therefrom are in a straight line, so that the straight pipe 5 can be stably pressed onto the multiple supporting protrusions 21.

[0044] Reference Figure 12The side support module 6 also includes a back support crossbar 62, a diagonal brace 63, and an embedded block 64. The back support crossbar 62 is horizontally fixedly installed on the outer wall of the outer side plate 61 (e.g., by welding or by an integral connection), and the cross section of the back support crossbar 62 is rectangular. The top of the diagonal brace 63 abuts against the connection between the bottom surface of the back support crossbar 62 and the outer wall of the outer side plate 61, and the bottom end of the diagonal brace 63 is inserted into the soil layer beside the trench 1. The embedded block 64 is fixedly installed on the bottom end of the diagonal brace 63 (e.g., by anchoring), and the embedded block 64 is inserted into the soil layer beside the trench 1 to prevent the bottom end of the diagonal brace 63 from sinking (the diagonal brace 63 has a small cross-sectional area, which easily leads to stress concentration in the soil layer, thus causing the diagonal brace 63 to sink; the embedded block 64 can increase the bearing area, reduce the pressure, and prevent sinking).

[0045] Reference Figure 13 The rear opening of the pouring cavity 70 is sealed by the completed foundation 2a, and the front opening of the pouring cavity 70 is sealed by the sealing block 9 to prevent grout leakage. The sealing block 9 is made of wood or foam material, thus having low density and weight, making it easy for users to handle. The sealing block 9 is detachably connected to the outer wall by bolts.

[0046] Usage steps: ① Install the side support module 6; ② Pour concrete between the two paired side support modules 6, and then vibrate the concrete (e.g., using a vibrator); ③ Pull the sealing plug 71132 out of the vent hole 71131, and then immerse the bottom of the top support module 7 into the concrete; when concrete flows out of the vent hole 71131, insert the sealing plug 71132 into the vent hole 71131; ④ Connect the top support module 7 to the side support module 6; (After the top support module 7 and the side support module 6 are connected, if the first If the height of the concrete liquid level in the gap 7220 is not more than 15 cm higher than the top surface of the upper protrusion 711, concrete needs to be poured into the pouring channel. Then, a vibrator is inserted into the pouring channel to vibrate the concrete, thereby forming the side wing 22 structure of the foundation 2; ⑤ The concrete is cured and hardened to form the foundation 2 and the supporting protrusion 21; ⑥ The top support module 7 and the side support module 6 are removed; ⑦ The pipe 5 is pressed onto the supporting protrusion 21; ⑧ Concrete continues to be poured above the foundation 2 and the supporting protrusion 21 (e.g., Figure 14 As shown, the concrete is blocked by the side wing 22 on the top surface of the foundation 2 and will not flow outward. Then the concrete is vibrated (e.g., using a vibrator); the concrete is cured and hardened to form the pipe seat 3; the trench 1 is backfilled to form the backfill layer 4.

[0047] To improve the structural strength of the foundation 2 and the supporting protrusion 21, a steel mesh can be laid in the casting cavity 70 after step ① and before step ②, thereby improving the load-bearing capacity of the foundation 2 and the supporting protrusion 21.

[0048] Reference Figure 13 and Figure 14 During step ⑧, the concrete at both ends is stopped by the completed pipe seat 3a and the sealing block 9, respectively.

[0049] This utility model has a simple structure and reliable function. While pouring the foundation 2, a supporting protrusion 21 is formed on the upper surface of the foundation 2. When the pipe 5 is placed on the supporting protrusion 21, the outward expansion 51 can be suspended, thus allowing the pipe 5 to present the required tilt angle. The supporting protrusion 21 uses a top support module 7 to achieve standardized operation, which has higher construction precision, improves construction quality, and enhances the drainage performance of the rainwater pipe network compared to the method of using bricks.

[0050] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this utility model based on its guidance, without departing from its principles and spirit, shall still fall within the protection scope of this utility model.

Claims

1. A pipe foundation construction device for a rainwater pipe network, characterized by: It includes a side support module (6) and a top support module (7); the side support module (6) includes an upright outer side plate (61); the top support module (7) is provided with a casting cavity (70) below it; The top support module (7) includes a bottom plate (71), an inner side plate (72), a reinforcing rib plate (73), and a second end plate (74); the bottom edge of the inner side plate (72) is fixedly connected to the bottom plate (71), the bottom edge of the second end plate (74) is fixedly connected to the bottom plate (71), and the side edge of the inner side plate (72) is fixedly connected to the side edge of the second end plate (74); The inner side plate (72) includes a vertical part (721) and an inclined part (722); the bottom end of the vertical part (721) is fixedly connected to the top end of the inclined part (722); the vertical part (721) is detachably connected to the outer side plate (61), and a first gap (7220) is provided between the inclined part (722) and the outer side plate (61). The inner side plate (72) also includes a recessed portion (723) disposed in the middle of the vertical portion (721), and a casting channel (7230) is provided between the recessed portion (723) and the outer side plate (61). The bottom of the casting channel (7230) communicates with the first gap (7220); the bottom of the first gap (7220) communicates with the casting cavity (70). The base plate (71) has an upper protrusion (711) in the middle for forming a support protrusion (21), and the upper protrusion (711) has a box structure with an open bottom.

2. The pipe foundation construction apparatus for a rainwater pipe network according to claim 1, characterized by: The cross-section of the recessed portion (723) is C-shaped.

3. The apparatus according to claim 2, wherein: The upper convex part (711) includes an arc-shaped top plate (7111), the middle part of which is concave.

4. The apparatus according to claim 3, wherein: The bottom surface of the arc-shaped top plate (7111) is adapted to the bottom surface of the outer surface of the pipe (5).

5. The apparatus according to claim 4, wherein: The upper protrusion (711) further includes an inclined side plate (7113) and a first end plate (7112); the top edge of the inclined side plate (7113) is fixedly connected to the arc-shaped top plate (7111), the top edge of the first end plate (7112) is fixedly connected to the arc-shaped top plate (7111), and the side edge of the inclined side plate (7113) is fixedly connected to the side edge of the first end plate (7112).

6. The apparatus according to claim 5, wherein: The base plate (71) has a rectangular opening in the middle, and the bottom of the upper protrusion (711) is located at the rectangular opening; the bottom edge of the inclined side plate (7113) is fixedly connected to the base plate (71), and the bottom edge of the first end plate (7112) is fixedly connected to the base plate (71).

7. The apparatus according to claim 6, wherein: The inclined side plate (7113) has a ventilation hole (71131) at the top.

8. The apparatus according to claim 7, wherein: A sealing plug (71132) can be detachably installed inside the vent (71131).

9. The apparatus according to claim 8, wherein: The bottom edge of the reinforcing rib (73) is fixedly connected to the bottom plate (71) and the upper protrusion (711), and the side edge of the reinforcing rib (73) is fixedly connected to the inner side plate (72).

10. The apparatus according to claim 9, wherein: The reinforcing rib (73) is provided with a wire-laying hole, which is located directly above the arc-shaped top plate (7111).

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