A precast reinforced concrete drainage inspection well

Abstract

This utility model relates to the field of drainage inspection well technology, specifically a precast reinforced concrete drainage inspection well, comprising a precast inspection well body, which includes a base pipe, an extension pipe, and a jacking pipe. The top of the base pipe and the top of the extension pipe are provided with receiving components, and the bottom of the extension pipe and the bottom of the jacking pipe are provided with connecting components. The receiving component includes a bearing groove, within which a insertion groove and a limiting groove are formed. The connecting component includes an insertion block, with a filling hole at the bottom. The modular design of the base pipe, extension pipe, and jacking pipe allows for flexible combination of components according to the burial depth requirements of different projects, reducing the cost and cycle of customized production and improving the product's versatility. Through the precise cooperation of the receiving and connecting components, rapid connection of each component is achieved, eliminating the need for complex on-site construction processes, significantly shortening the construction period, and reducing labor costs.

Description

Technical Field

[0001] This utility model relates to the field of drainage inspection well technology, specifically a precast reinforced concrete drainage inspection well. Background Technology

[0002] Precast inspection wells, as core supporting facilities for municipal infrastructure, industrial pipe networks, and civil building drainage systems, primarily undertake functions such as drainage pipeline inspection, dredging, ventilation, and flow monitoring. Their technological development is deeply intertwined with urbanization, rising environmental protection requirements, and the need to improve engineering construction efficiency. With the expansion of urban drainage networks, higher construction standards, and upgraded operation and maintenance models, traditional inspection wells have revealed numerous shortcomings, driving the research and development and widespread adoption of precast inspection well technology, making it the mainstream alternative to traditional on-site masonry / cast-in-place inspection wells.

[0003] In the existing technology, the connection between prefabricated inspection well modules adopts a connection method of groove and protrusion combined with concrete. This connection method will affect the strength between the structures and increase the probability of leakage. To address this problem, a prefabricated reinforced concrete drainage inspection well is needed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the precast reinforced concrete drainage inspection wells, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a precast reinforced concrete drainage inspection well, which adopts a modular design of base pipe, extension pipe and jacking pipe. The components can be flexibly combined according to the burial depth requirements of different projects, which reduces the cost and cycle of customized production and improves the versatility of the product. By precisely matching the receiving and connecting components, the various parts can be quickly connected without the need for complicated on-site construction processes, which greatly shortens the construction period and reduces labor costs. The limiting groove in the receiving component cooperates with the plug-in block in the connecting component to effectively prevent relative displacement and rotation between components; the connecting ring enhances the overall rigidity of the connecting component; the selection of high-strength materials ensures the well body's resistance to pressure and settlement, guaranteeing the long-term stable operation of the well body.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A precast reinforced concrete drainage inspection well, comprising a precast inspection well body; The prefabricated inspection well body includes a base pipe, an extension pipe, and a jacking pipe. The top of the base pipe and the top of the extension pipe are provided with receiving components, and the bottom of the extension pipe and the bottom of the jacking pipe are provided with connecting components. The receiving component includes a bearing groove, and the bearing groove has an insertion groove and a limiting groove. The connecting component includes an insertion block, and the bottom of the insertion block has a filling hole. A connecting ring is connected to the insertion block, and the top and bottom of the connecting ring have filling gaps.

[0008] As a preferred embodiment of the precast reinforced concrete drainage inspection well described in this utility model, a support platform is provided at the top of the jacking pipe, and a well cover is provided on the support platform.

[0009] As a preferred embodiment of the precast reinforced concrete drainage inspection well described in this utility model, the base pipe is provided with multiple extension pipes at the top, and the extension pipes are provided with jacking pipes at the top.

[0010] As a preferred embodiment of the precast reinforced concrete drainage inspection well described in this utility model, the base pipe includes a base plate, a bottom pipe is provided on the top of the base plate, connecting grooves are provided on both sides of the bottom pipe, and the receiving component is located on the top of the bottom pipe.

[0011] As a preferred embodiment of the precast reinforced concrete drainage inspection well described in this utility model, the bearing groove is annular, and multiple insertion grooves and limiting grooves are evenly provided inside the bearing groove, with the insertion grooves and limiting grooves located on the inner walls of both sides of the bearing groove.

[0012] As a preferred embodiment of the precast reinforced concrete drainage inspection well described in this utility model, the plug-in blocks are provided in multiple ways, arranged in a ring at the bottom of the extension pipe and the top pipe, and the multiple plug-in blocks are connected by connecting rings.

[0013] In a preferred embodiment of the precast reinforced concrete drainage inspection well described in this utility model, the filling joint is located between two adjacent plug-in blocks.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The modular design of the base pipe, extension pipe and jacking pipe allows for flexible combination of components according to the burial depth requirements of different projects, reducing the cost and cycle of customized production and improving the versatility of the product. 2. By precisely matching the receiving and connecting components, the various parts can be quickly connected without the need for complicated on-site construction processes, which greatly shortens the construction period and reduces labor costs. 3. The limiting groove in the receiving component cooperates with the plug-in block in the connecting component to effectively prevent relative displacement and rotation between components; the connecting ring enhances the overall rigidity of the connecting component; the selection of high-strength materials ensures the well body's resistance to pressure and settlement, guaranteeing the long-term stable operation of the well body. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall exploded structure of this utility model; Figure 3 This is a schematic diagram of the three-dimensional structure of the base tube of this utility model; Figure 4 This is a three-dimensional structural diagram of the extension tube of this utility model; Figure 5 This is a schematic diagram of the three-dimensional structure of the jacking pipe of this utility model.

[0016] In the diagram: 100 Prefabricated manhole body, 110 base pipe, 111 bottom plate, 112 bottom pipe, 113 connecting groove, 120 extension pipe, 130 jacking pipe, 131 bearing platform, 132 manhole cover, 140 receiving component, 141 bearing groove, 142 insertion groove, 143 limiting groove, 150 connecting component, 151 insertion block, 152 filling hole, 153 connecting ring, 154 filling joint. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0021] This utility model provides the following technical solution: a precast reinforced concrete drainage inspection well, which adopts a modular design of base pipe, extension pipe and jacking pipe during use. The components can be flexibly combined according to the burial depth requirements of different projects, which reduces the cost and cycle of customized production and improves the versatility of the product. By precisely matching the receiving and connecting components, the various parts can be quickly connected without the need for complicated on-site construction processes, which greatly shortens the construction period and reduces labor costs. The limiting groove in the receiving component cooperates with the plug-in block in the connecting component to effectively prevent relative displacement and rotation between components; the connecting ring enhances the overall rigidity of the connecting component; the selection of high-strength materials ensures the well body's resistance to pressure and settlement, guaranteeing the long-term stable operation of the well body.

[0022] Figures 1-5 The diagram shown is a structural schematic of the first embodiment of a precast reinforced concrete drainage inspection well according to this utility model. Please refer to [link / reference]. Figures 1-5 The precast reinforced concrete drainage inspection well of this embodiment includes a precast inspection well body 100 as its main body. The prefabricated inspection well body 100 includes a base pipe 110, an extension pipe 120, and a jacking pipe 130. The top of the base pipe 110 and the top of the extension pipe 120 are provided with a receiving component 140, and the bottom of the extension pipe 120 and the bottom of the jacking pipe 130 are provided with a connecting component 150. The receiving component 140 includes a bearing groove 141, and the bearing groove 141 is provided with an insertion groove 142 and a limiting groove 143. The connecting component 150 includes an insertion block 151, and the bottom of the insertion block 151 is provided with a filling hole 152. A connecting ring 153 is connected to the insertion block 151, and the top and bottom of the connecting ring 153 are provided with filling gaps 154. The base pipe 110, as the foundation component of the prefabricated inspection well, bears the important function of supporting the weight of the entire well body and connecting to the underground pipe network. Its structure includes a base plate 111 and a base pipe 112. The base plate 111 is made of high-strength reinforced concrete, possessing excellent compressive strength, capable of stably supporting the weight of the well body and the overlying soil, preventing well body settlement. The base pipe 112 is vertically installed on top of the base plate 111, forming an integrated prefabricated structure with the base plate 111, ensuring a robust connection. Connecting grooves 113 are provided on both sides of the base pipe 112. These grooves are used to connect to pipes in the underground pipe network and can be adapted according to the pipe diameter specifications, achieving smooth connection between the pipe and the well body. Furthermore, a receiving assembly 140 is located on top of the base pipe 112, providing a structural foundation for connection with the extension pipe 120. The extension pipe 120 is a core component used to adjust the height of the prefabricated inspection well. The number of extension pipes can be flexibly increased or decreased according to the actual burial depth requirements at the engineering site. The top of the extension pipe 120 is equipped with a receiving component 140, and the bottom with a connecting component 150. Through the cooperation of the receiving component 140 and the connecting component 150, a precise connection is achieved with the base pipe 110 or other extension pipes 120. Its pipe body is made of the same high-strength material as the base pipe 110, ensuring the consistency and stability of the entire well structure. At the same time, the surface of the pipe body undergoes special treatment, providing excellent corrosion resistance and adapting to complex underground environments. The jacking pipe 130, located at the very top of the precast inspection well, is a crucial component connecting the well body to the ground. A connecting assembly 150 is installed at the bottom of the jacking pipe 130 for connecting to the extension pipe 120 (or the base pipe 110, when the well body does not require extension). At the top of the jacking pipe 130, a support platform 131 is provided. The support platform 131 has a ring-shaped structure, its dimensions adapted to the manhole cover 132, for placing the manhole cover 132, thus protecting the inside of the well, preventing debris from falling into the well, and ensuring the safety of pedestrians and vehicles. The height of the jacking pipe 130 is precisely designed to ensure that after the manhole cover 132 is installed, the top of the manhole cover 132 remains flush with the ground, without affecting the normal use of the road. The receiving component 140 is located at the top of the base pipe 110 (specifically, the top of the bottom pipe 112) and the top of the extension pipe 120. Its core structure is a bearing groove 141, which is annular and coaxially aligned with the pipe body to ensure uniform force distribution during connection. Multiple insertion grooves 142 and limiting grooves 143 are evenly distributed within the bearing groove 141. These grooves are located on the inner walls of both sides of the bearing groove 141, and are symmetrically distributed with one-to-one correspondence between the insertion grooves 142 and 143. The dimensions of the insertion grooves 142 match the insertion blocks 151 in the connecting component 150, facilitating the insertion of the insertion blocks 151. The limiting grooves 143 limit the insertion of the insertion blocks 151, preventing radial movement within the bearing groove 141 and ensuring connection stability. The even distribution of multiple insertion slots 142 and limiting slots 143 further improves the stress balance of the connection parts and avoids structural damage caused by local stress concentration.

[0023] The connecting assembly 150 is located at the bottom of the extension pipe 120 and the top pipe 130, and mainly consists of plug blocks 151 and connecting rings 153. Multiple plug blocks 151 are provided, and they are evenly distributed in a ring at the bottom of the extension pipe 120 and the top pipe 130. Their number is consistent with the number of plug slots 142 in the receiving assembly 140, ensuring that each plug block 151 can be accurately inserted into its corresponding plug slot 142. A filling hole 152 is provided at the bottom of the plug block 151, penetrating the upper and lower end faces of the plug block 151. Before the plug block 151 is inserted into the plug slot 142, a waterproof sealing material (such as cement grout, special sealant, etc.) is injected into the connection area to seal the connection and prevent groundwater from seeping into the well body. The connecting ring 153 is fixed as a whole with multiple plug-in blocks 151, connecting the dispersed plug-in blocks 151 into a ring structure, which enhances the overall rigidity and stability of the connecting assembly 150. The connecting ring 153 has filling slots 154 at both its top and bottom, located between two adjacent plug-in blocks 151 and communicating with the filling holes 152 at the bottom of the plug-in blocks 151. When sealing material is injected, the sealing material can flow into the filling slots 154, filling the gap between the connecting ring 153 and the bearing groove 141, further improving the sealing and integrity of the connection, and effectively avoiding well leakage problems caused by poor sealing.

[0024] Combination Figures 1-5The working principle of this embodiment of a precast reinforced concrete drainage inspection well is as follows: First, a foundation pit is excavated at the construction site according to the design requirements, and the bottom of the foundation pit is leveled and compacted to ensure that the bearing capacity of the bottom of the foundation pit meets the design requirements. Then, the base pipe 110 is hoisted into the foundation pit, and the position of the base pipe 110 is adjusted so that the connecting grooves 113 on both sides of the bottom pipe 112 are aligned with the underground pipe network. Subsequently, the base pipe 110 is fixed to prevent it from shifting during subsequent assembly.

[0025] When the well height needs to be adjusted via the extension pipe 120, the connecting component 150 at the bottom of the extension pipe 120 is aligned with the receiving component 140 at the top of the base pipe 110. Specifically, the multiple insertion blocks 151 at the bottom of the extension pipe 120 are aligned with the insertion slots 142 within the bearing groove 141 at the top of the base pipe 110. The extension pipe 120 is then slowly lowered until the insertion blocks 151 are fully inserted into the insertion slots 142. At this time, the limiting groove 143 limits the insertion blocks 151, preventing the extension pipe 120 from rotating. If multiple extension pipe sections 120 need to be installed, the connecting component 150 at the bottom of the next extension pipe section 120 is aligned with the receiving component 140 at the top of the previous extension pipe section in the same manner until the designed well height is achieved.

[0026] After completing the installation of the base pipe 110 and the extension pipe 120, install the jacking pipe 130. Align the connecting component 150 at the bottom of the jacking pipe 130 with the receiving component 140 at the top of the uppermost extension pipe 120 (or the base pipe 110, when the extension pipe 120 is not installed), so that the insertion block 151 at the bottom of the jacking pipe 130 is inserted into the corresponding insertion slot 142, ensuring that the jacking pipe 130 is installed in place and that the support platform 131 at the top of the jacking pipe 130 remains horizontal. Before connecting the components, waterproof sealant needs to be injected into the connection points to seal them. The sealant will flow along the bearing groove 141 into the filling gaps 154 at the top and bottom of the connecting ring 153 until all gaps are filled. After the sealant solidifies, the connection points will be effectively sealed, preventing groundwater from seeping into the well body. Finally, place the manhole cover 132 on the support platform 131 on top of the jacking pipe 130, ensuring that the manhole cover 132 fits tightly with the support platform 131 to achieve closed protection of the manhole body.

[0027] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0028] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precast reinforced concrete drainage inspection chamber characterised in that: Including the prefabricated manhole body (100); The prefabricated inspection well body (100) includes a base pipe (110), an extension pipe (120), and a jacking pipe (130). A receiving component (140) is provided at the top of the base pipe (110) and the top of the extension pipe (120). A connecting component (150) is provided at the bottom of the extension pipe (120) and the bottom of the jacking pipe (130). The receiving component (140) includes a bearing groove (141). An insertion groove (142) and a limiting groove (143) are provided in the bearing groove (141). The connecting component (150) includes an insertion block (151). A filling hole (152) is provided at the bottom of the insertion block (151). A connecting ring (153) is connected to the insertion block (151). A filling slot (154) is provided at the top and bottom of the connecting ring (153).

2. A precast reinforced concrete drainage inspection chamber according to claim 1, wherein: The top of the jacking pipe (130) is provided with a support platform (131), and a manhole cover (132) is provided on the support platform (131).

3. A precast reinforced concrete drainage inspection chamber according to claim 1, wherein: The base pipe (110) is provided with a plurality of extension pipes (120) at the top, and the extension pipes (120) are provided with a top pipe (130) at the top.

4. A precast reinforced concrete drainage inspection chamber according to claim 1, wherein: The base pipe (110) includes a base plate (111) (120), a bottom pipe (112) is provided on the top of the base plate (111) (120), and connecting grooves (113) are provided on both sides of the bottom pipe (112). The receiving component (140) is located on the top of the bottom pipe (112).

5. A precast reinforced concrete drainage inspection chamber as claimed in claim 1, wherein: The bearing groove (141) is annular, and multiple insertion grooves (142) and limiting grooves (143) are evenly provided inside the bearing groove (141). The insertion grooves (142) and limiting grooves (143) are located on the inner walls of both sides of the bearing groove (141).

6. A precast reinforced concrete drainage inspection chamber as claimed in claim 1, wherein: Multiple plug-in blocks (151) are provided and are arranged in a ring at the bottom of the extension tube (120) and the top tube (130). The multiple plug-in blocks (151) are connected by connecting rings (153).

7. A precast reinforced concrete drainage inspection chamber as claimed in claim 1, wherein: The filling gap (154) is located between two adjacent plug blocks (151).

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