A prefabricated assembly type gully well chamber

Abstract

This utility model discloses a prefabricated assembled rainwater inlet chamber. The lower body has a base plate, and the upper body is a through-structure, with its lower side corresponding to the upper side of the lower body and spliced ​​together to form a whole. Semicircular grooves are formed on the opposite ends of both the upper and lower bodies. These semicircular grooves are spliced ​​together to form a circular groove for inserting the culvert end. Semicircular rings are provided on the outer arc sides of the corresponding semicircular grooves on both the upper and lower bodies. The upper and lower semicircular rings are spliced ​​together to form a grouting groove. A mortar layer is applied to the splicing sides of the lower and upper bodies, and then the upper bodies are assembled sequentially. The grouting groove, formed by the semicircular rings on the circumference of the semicircular groove, is located at the position of the circular groove corresponding to the culvert. This groove is later filled with mortar to seal the joint between the culvert and the circular groove. This ensures smooth and convenient installation of the culvert, while effectively sealing the joint between the culvert and the rainwater inlet.

Description

Technical Field

[0001] This utility model belongs to the technical field of municipal structural equipment, and in particular relates to a prefabricated assembled rainwater inlet well chamber. Background Technology

[0002] Traditionally, municipal road storm drains are constructed by excavating backfill after the base course is completed and manually laying bricks. This process damages the base structure, and the cement mortar, bricks, and other loose materials pollute the road surface, wasting labor. Furthermore, inadequate finishing of the storm drains can cause leaks, damaging the roadbed structure and shortening the road's lifespan.

[0003] Another more convenient approach is to precast storm drains. This involves pouring concrete mortar into molds, allowing it to dry, and then demolding. During construction, the storm drains are installed first, and then connected to each other using cement culverts or plastic pipes to form a municipal stormwater network. While precast storm drains save time compared to temporary fabrication, the installation of the culverts is more difficult. The culverts need to be inserted into the corresponding storm drain inlet slots, overcoming length requirements. Furthermore, the gaps between the culverts and the inlets are relatively large, making later filling and repairs prone to cracking, allowing water to seep into the road surface and causing damage. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated assembled rainwater inlet chamber, and to study and develop a complete set of assembled rainwater inlet construction technology, which includes on-site assembly and reinforcement of the complete set of assembled rainwater inlets, to replace the traditional brick-built rainwater inlets, thereby improving project quality and shortening the construction period.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A prefabricated assembled rainwater inlet chamber includes a lower body and an upper body, which are square in shape, thin-walled, and prepared by concrete casting;

[0007] The lower body has a bottom plate at the bottom and an open side at the top. The upper body has a through structure at the top and bottom, and its lower side corresponds to the upper side of the lower body and they are spliced ​​together to form a whole.

[0008] The upper and lower bodies are each provided with a semi-circular groove on their opposite ends. The corresponding semi-circular grooves are spliced ​​together to form a circular groove for plug-in installation of the culvert end.

[0009] The upper and lower bodies are each provided with a semi-circular ring on the outer arc side of the corresponding semi-circular groove. The semi-circular rings on the upper and lower sides are spliced ​​together to form a grouting groove.

[0010] Furthermore, the upper opening side of the upper body is wide-mouthed, and the upper opening side of the upper body has a stepped groove for installing a metal grille.

[0011] Furthermore, a limiting groove is provided on the lower body corresponding to the splicing side, and a limiting protrusion is provided on the upper body corresponding to the splicing side, for insertion and limiting cooperation with the limiting groove. Column grooves are provided at the corner positions on the upper side of the lower body, and steel bars are fixed at the corner positions on the lower side of the upper body for insertion into the column grooves.

[0012] Furthermore, the base plate has an arc-shaped structure, and the lower body sidewall has an extended border corresponding to the bottom.

[0013] This invention offers the following advantages: First, the lower body is installed. After the lower body of the entire pipeline network is installed, the culvert is installed, with its port side overlapping the semi-circular groove of the lower body. A mortar layer is applied to the joint sides of the lower and upper bodies, and then the upper bodies are assembled sequentially. A grouting groove is formed at the position of the circular groove corresponding to the culvert, consisting of a semi-circular ring on the circumference of the semi-circular groove. This groove is later used to fill with mortar, sealing the joint between the culvert and the circular groove. This ensures smooth and convenient installation of the culvert, while effectively sealing the joint between the culvert and the rainwater inlet. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0015] Figure 1 : Schematic diagram of the structure of this utility model.

[0016] Figure 2 : Schematic diagram of the splicing and installation structure of the upper and lower body of this utility model.

[0017] Figure 3 : A longitudinal section and a partially enlarged structural schematic diagram of this utility model.

[0018] The components represented by each number in the attached diagram are listed below: Lower body 1, Upper body 2, Base plate 4, Semicircular groove 11, Culvert 3, Semicircular ring 12, Step groove 21, Limiting groove 13, Limiting protrusion 22, Column groove 14, Reinforcing bar 23. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figures 1-2 As shown: A prefabricated assembled rainwater inlet chamber includes a lower body 1 and an upper body 2, both square in shape, thin-walled, and constructed by concrete casting; both the upper and lower bodies are prefabricated assembled structures constructed by concrete casting. The concrete strength grade is C30.

[0021] The lower body 1 has a base plate 4 at the bottom and an open side on the top. The upper body 2 is a through structure, with its lower side corresponding to the upper side of the lower body 1, and they are spliced ​​together to form a whole.

[0022] Semicircular grooves 11 are provided on the opposite ends of the upper body 2 and the lower body 1. The corresponding semicircular grooves 11 are spliced ​​together to form a circular groove for plug-in installation of the end of the culvert 3.

[0023] Both the upper body 2 and the lower body 1 have semicircular rings 12 on the outer arc side of the corresponding semicircular groove 11. The semicircular rings 12 on the upper and lower sides are spliced ​​together to form a grouting groove.

[0024] This prefabricated rainwater inlet is an assembled structure. During installation, it is positioned on both sides of the road, and then the earthwork layer is excavated. The lower body is installed first. After the lower body of the entire pipeline is installed, the culvert is installed. The culvert end is overlapped in the semi-circular groove of the lower body. The mortar layer is applied to the splicing side of the lower body and the upper body, and then the upper body is assembled in sequence.

[0025] A grouting groove is formed at the location of the circular groove corresponding to the culvert. It is formed by a semi-circular ring on the circumference of the semi-circular groove and is later used to fill mortar to seal the joint between the culvert and the circular groove. This ensures smooth and convenient installation of the culvert and effectively seals the joint between the culvert and the rainwater inlet.

[0026] like Figure 3 As shown: the upper opening side of the upper body 2 is a wide opening, and the upper opening side of the upper body 2 has a stepped groove 21 for installing metal grilles.

[0027] like Figure 2 As shown: A limiting groove 13 is provided on the splicing side of the lower body 1, and a limiting protrusion 22 is provided on the splicing side of the upper body for insertion and limiting engagement with the limiting groove 13. The width of the limiting groove is greater than the width of the limiting protrusion. After insertion, a certain amount of interlayer is reserved on both sides of the limiting protrusion. During splicing, sufficient cement mortar is injected, and the fluid mortar is squeezed into this interlayer during the insertion process of the limiting protrusion, improving connection stability and sealing. Column grooves 14 are provided at the corner positions on the upper side of the lower body 1, and steel bars 23 are fixed at the corner positions on the lower side of the upper body 2 for insertion into the column grooves 14. The cooperation between the steel bars and the column grooves serves two purposes: firstly, for positioning during splicing, ensuring uniform interlayer width on both sides of the limiting protrusion; secondly, to improve the connection strength between the upper and lower bodies, preventing cracking on the connection side of the upper and lower bodies due to pressure from the road surface. Before inserting the steel bars into the column grooves, cement mortar is injected into the column grooves to further strengthen the bond between the steel bars and the column grooves. The reinforcing bars are pre-embedded in the overall structure during the pouring of the upper part.

[0028] like Figure 3As shown: The base plate 4 has an arc-shaped structure, and the side wall of the lower body 1 has an extended frame corresponding to the bottom. The frame is used to replace the contact between the base plate and the bottom of the earthwork trench, reducing the stress on the base plate and facilitating installation stability. The smaller contact area with the support surface makes it easier to maintain balance. The arc shape of the base plate prevents the corner effect of the lower body from making it difficult to clean silt. The arc-shaped bottom surface can prevent silt from accumulating, and under the action of high-flow water, the silt can be discharged by the culvert along with it, preventing the rainwater inlet from being blocked.

[0029] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A prefabricated, assembled rainwater inlet chamber, characterized in that: It includes a lower body (1) and an upper body (2), which are square, thin-walled, and made by concrete casting; The lower body (1) has a bottom plate (4) at the bottom and an open side on the upper side. The upper body (2) is a through structure, with its lower side corresponding to the upper side of the lower body (1) and spliced ​​together to form a whole. The upper body (2) and the lower body (1) are provided with semi-circular grooves (11) on their opposite ends. The corresponding semi-circular grooves (11) are spliced ​​together to form a circular groove for plug-in installation of the end of the culvert (3). The upper body (2) and the lower body (1) are each provided with a semi-circular ring (12) on the outer arc side of the corresponding semi-circular groove (11). The upper and lower semi-circular rings (12) are spliced ​​together to form a grouting groove.

2. The prefabricated assembled rainwater inlet chamber according to claim 1, characterized in that: The upper opening side of the upper body (2) is wide-mouthed, and the upper opening side of the upper body (2) has a stepped groove (21) for installing metal grilles.

3. The prefabricated assembled rainwater inlet chamber according to claim 1, characterized in that: The lower body (1) has a limiting groove (13) on the splicing side, and the upper body has a limiting protrusion (22) on the splicing side, which is used to insert and limit the limiting groove (13).

4. The prefabricated assembled rainwater inlet chamber according to claim 3, characterized in that: The lower body (1) has column grooves (14) at the corners on the upper side, and the upper body (2) has steel bars (23) fixed at the corners on the lower side for insertion into the column grooves (14).

5. The prefabricated assembled rainwater inlet chamber according to claim 1, characterized in that: The base plate (4) has an arc-shaped structure, and the side wall of the lower body (1) has an extended border corresponding to the bottom.

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