A concrete precast well

By introducing connecting top rods and reinforcing bottom rods into the precast concrete well, the problems of inconvenient installation and settlement of the precast well were solved, achieving parallel installation with the ground and stable connection with pipelines, thus improving the stability and reliability of the precast well in use.

CN224531743UActive Publication Date: 2026-07-21上海申排水务科技集团有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
上海申排水务科技集团有限公司
Filing Date
2025-07-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The fixed height of precast concrete wells makes installation inconvenient. The large space reserved at the top makes it impossible to be parallel to the ground. After long-term use, they are prone to settling, and the connection between pipelines and precast wells becomes loose and falls off.

Method used

A structure comprising a precast well body, a precast well bottom ring, and a precast well top ring was designed, equipped with a connecting top rod, a reinforcing bottom rod, and a lifting ring structure. The connecting top rod is installed parallel to the ground, the reinforcing bottom rod is inserted into the soil to prevent settlement, and the pipeline is suspended and reinforced by the lifting ring structure.

Benefits of technology

This allows for the parallel installation of precast concrete wells with the ground, improving the convenience and stability of installation, preventing settlement, enhancing the connection stability of pipelines, and reducing the risk of loosening and falling off.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of prefabricated wells of concrete, it is related to prefabricated well field, including prefabricated well main body, prefabricated well bottom ring and prefabricated well top ring, the prefabricated well bottom ring is integrally formed in the upper end of prefabricated well main body, the prefabricated well top ring is integrally formed in the lower end of prefabricated well main body, the outside both sides of prefabricated well main body are integrally formed with inspection installation ring, the top of prefabricated well top ring is threadedly installed with multiple shrink nuts.The utility model can install parallelly at prefabricated well and ground parallel inlet, save the trouble of installing sleeve separately, more convenient prefabricated well different depth installation and use, still can extrude insertion soil inside with reinforced bottom rod downwards, using reinforced bottom rod insertion soil inside forms reinforcing structure to prevent prefabricated well main body from sinking downwards, improve the long time use stability of prefabricated well, while detecting line pipeline, carry out the effect of supporting reinforcement, so that prefabricated well is more firmly connected with the line pipeline of detection.
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Description

Technical Field

[0001] This utility model relates to the field of precast wells, and in particular to a precast concrete well. Background Technology

[0002] Precast concrete manholes are installed under municipal roads to facilitate the inspection and maintenance of underground power supply, drainage and various lines. They are usually installed at certain intervals to facilitate the regular inspection and maintenance of these lines and pipes, and are widely used in municipal construction.

[0003] However, when using precast concrete wells, the height of the well is fixed, while the installation depth varies. After installation, the large space left at the top prevents the top of the well from being parallel to the ground, requiring the installation of a sleeve. This makes it inconvenient to install wells at different depths. Furthermore, precast concrete wells placed underground for extended periods can experience settlement. Additionally, when connecting pipelines to precast concrete wells, the connection is butt-to-button, which can lead to loosening and detachment at the joints after prolonged use, making stable long-term use impossible. Utility Model Content

[0004] The main objective of this invention is to provide a precast concrete well that can effectively solve the technical problems raised in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A precast concrete well includes a precast well body, a precast well bottom ring, and a precast well top ring. The precast well bottom ring is integrally formed at the upper end of the precast well body, and the precast well top ring is integrally formed at the lower end of the precast well body. Inspection and installation rings are integrally formed on both outer sides of the precast well body. Multiple shrinkage nuts are threaded onto the top of the precast well top ring, and multiple connecting rods are inserted into the shrinkage nuts. A positioning ring is fixedly installed at the upper end of each connecting rod. Multiple reinforcing rods are provided at the lower end of the precast well bottom ring, and a lifting ring structure is provided on the outer side of each connecting rod.

[0007] As a further embodiment of this utility model, the inspection and installation ring is internally connected to the precast well body, and the precast well bottom ring and the precast well top ring are of the same size.

[0008] As a further embodiment of this utility model, the lower end of the connecting top rod is inserted through the shrinkage nut into the precast well top ring and the precast well body, and multiple connecting top rods are arranged in a circle around the center of the precast well bottom ring.

[0009] As a further embodiment of this utility model, the upper end of the reinforcing bottom rod is inserted into the precast well bottom ring and the precast well body, and the upper end of the connecting top rod pushes the reinforcing bottom rod above the precast well body.

[0010] As a further embodiment of this utility model, the lifting ring structure includes a mounting plate, a top connecting shaft, a mounting rod, a bottom connecting shaft, and a reinforcing lifting ring. The mounting plate is sleeved on the outside of the connecting rod. The top connecting shaft is fixedly installed on one side of the mounting plate. The mounting rod is movably installed on the outside of the top connecting shaft. The bottom connecting shaft is movably installed at the lower end of the mounting rod. The reinforcing lifting ring is fixedly installed on the outside of the bottom connecting shaft.

[0011] As a further embodiment of this utility model, the mounting rod rotates around the top connecting shaft and the bottom connecting shaft, and the two reinforcing lifting rings are located on one side of the two inspection mounting rings.

[0012] Compared with the prior art, the present invention has the following advantages: When the wellhead is at a high position, the connecting top rod extends upward to keep the positioning ring parallel to the ground, thereby installing the precast well parallel to the ground entrance, eliminating the trouble of installing a sleeve separately, making it more convenient to install and use the precast well at different depths. The reinforcing bottom rod can also be pushed downward and inserted into the soil, and the reinforcing bottom rod inserted into the soil forms a reinforcing structure to prevent the main body of the precast well from sinking downward, thus improving the long-term stability of the precast well.

[0013] By using a reinforcing lifting ring to cover the outside of the pipeline passing through the inspection and installation ring, and simultaneously installing a connecting plate on the outside of the connecting top rod, the suspended pipeline is lifted and reinforced in conjunction with the installation lifting rod. This achieves the effect of supporting and reinforcing the pipeline while inspecting it, making the prefabricated well more firmly connected to the pipeline being inspected and reducing the occurrence of detachment problems. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a precast concrete well according to the present invention;

[0015] Figure 2 This is a split view of a precast concrete well according to the present invention;

[0016] Figure 3 This is a structural diagram of a reinforcing bottom rod extending downwards in a precast concrete well according to this utility model;

[0017] Figure 4 This is a structural diagram of a lifting ring structure in a precast concrete well according to this utility model.

[0018] In the diagram: 1. Precast well body; 2. Inspection and installation ring; 3. Precast well bottom ring; 4. Precast well top ring; 5. Shrinkage nut; 6. Connecting top rod; 7. Positioning ring; 8. Reinforcing bottom rod; 9. Lifting ring structure; 10. Installation connecting plate; 11. Top connecting shaft; 12. Installation lifting rod; 13. Bottom connecting shaft; 14. Reinforcing lifting ring. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-4 As shown, a type of precast concrete well is described; please refer to it carefully. Figures 1-4 The precast well body 1 includes a precast well bottom ring 3 and a precast well top ring 4. The precast well bottom ring 3 is integrally formed on the upper end of the precast well body 1, and the precast well top ring 4 is integrally formed on the lower end of the precast well body 1. Inspection and installation rings 2 are integrally formed on both sides of the exterior of the precast well body 1. Multiple shrinkage nuts 5 are threaded on the top of the precast well top ring 4. Multiple connecting rods 6 are inserted into the inside of the shrinkage nuts 5. A positioning ring 7 is fixedly installed on the upper end of the connecting rod 6. Multiple reinforcing bottom rods 8 are provided at the lower end of the precast well bottom ring 3. A lifting ring structure 9 is provided on the outer side of the connecting rod 6.

[0021] Please refer to this carefully. Figures 1-3 Check that the installation ring 2 is internally connected to the precast well body 1, and that the precast well bottom ring 3 and the precast well top ring 4 are the same size.

[0022] Specifically, the precast well body 1 is placed under the road in use, the precast well bottom ring 3 contacts the bottom surface, and the precast well top ring 4 is connected to the well cover. The pipelines that need to be inspected regularly pass through the inspection and installation ring 2 and the precast well body 1. Therefore, maintenance can be carried out on the precast well body 1 to inspect and maintain the pipelines that pass through it.

[0023] Please refer to this carefully. Figures 1-3 The lower end of the connecting rod 6 passes through the shrinkage nut 5 and is inserted into the precast well top ring 4 and the precast well body 1. Multiple connecting rods 6 are arranged in a circle around the center of the precast well bottom ring 3.

[0024] Please refer to this carefully. Figures 1-3 The upper end of the reinforcing bottom rod 8 is inserted into the precast well bottom ring 3 and the precast well body 1, and the upper end of the connecting top rod 6 pushes the reinforcing bottom rod 8 above the precast well body 1.

[0025] Specifically, when the wellhead is at a high position, the connecting top rod 6 extends upward to keep the positioning ring 7 parallel to the ground. At the same time, the shrink nut 5 is rotated to shrink and fix the connecting top rod 6, thereby installing the precast well parallel to the ground at the entrance. Alternatively, when the connecting top rod 6 is not fixed, the positioning ring 7 and the connecting top rod 6 can be pressed downward, causing the connecting top rod 6 to push the reinforcing bottom rod 8 downward. Then, the reinforcing bottom rod 8 is inserted into the soil, forming a reinforcing structure to prevent the precast well body 1 from sinking downward.

[0026] Please refer to this carefully. Figure 1 and Figure 4 The lifting ring structure 9 includes a mounting plate 10, a top connecting shaft 11, a mounting rod 12, a bottom connecting shaft 13, and a reinforcing lifting ring 14. The mounting plate 10 is fitted onto the outside of the connecting top rod 6. The top connecting shaft 11 is fixedly installed on one side of the mounting plate 10. The mounting rod 12 is movably installed on the outside of the top connecting shaft 11. The bottom connecting shaft 13 is movably installed on the lower end of the mounting rod 12. The reinforcing lifting ring 14 is fixedly installed on the outside of the bottom connecting shaft 13.

[0027] Please refer to this carefully. Figure 1 and Figure 4 The mounting rod 12 rotates between the top connecting shaft 11 and the bottom connecting shaft 13, and the two reinforcing lifting rings 14 are located on one side of the two inspection mounting rings 2.

[0028] Specifically, the reinforcing lifting ring 14 is fitted on the outside of the pipeline passing through the inspection and installation ring 2, while the connecting plate 10 is installed on the outside of the connecting top rod 6. Together with the installation rod 12, the suspended pipeline is lifted and reinforced, thereby achieving the effect of supporting and reinforcing the pipeline while inspecting it.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A precast concrete well, comprising a precast well body (1), a precast well bottom ring (3), and a precast well top ring (4), wherein the precast well bottom ring (3) is integrally formed at the upper end of the precast well body (1), and the precast well top ring (4) is integrally formed at the lower end of the precast well body (1), characterized in that: The precast well body (1) has inspection and installation rings (2) integrally formed on both sides of its exterior. The top of the precast well top ring (4) is threaded with multiple shrink nuts (5). Multiple connecting rods (6) are inserted into the shrink nuts (5). A positioning ring (7) is fixedly installed at the upper end of the connecting rod (6). Multiple reinforcing rods (8) are provided at the lower end of the precast well bottom ring (3). A lifting ring structure (9) is provided on the outer side of the connecting rod (6).

2. A precast concrete well according to claim 1, characterized in that: The inspection and installation ring (2) is connected to the interior of the precast well body (1), and the precast well bottom ring (3) and the precast well top ring (4) are the same size.

3. A precast concrete well according to claim 1, characterized in that: The lower end of the connecting top rod (6) is inserted through the shrinkage nut (5) into the precast well top ring (4) and the precast well body (1), and multiple connecting top rods (6) are arranged in a circle around the center of the precast well bottom ring (3).

4. A precast concrete well according to claim 1, characterized in that: The upper end of the reinforcing bottom rod (8) is inserted into the precast well bottom ring (3) and the precast well body (1), and the upper end of the connecting top rod (6) pushes the reinforcing bottom rod (8) above the precast well body (1).

5. A precast concrete well according to claim 1, characterized in that: The lifting ring structure (9) includes a mounting plate (10), a top connecting shaft (11), a mounting rod (12), a bottom connecting shaft (13), and a reinforcing lifting ring (14). The mounting plate (10) is fitted on the outside of the connecting top rod (6). The top connecting shaft (11) is fixedly installed on one side of the mounting plate (10). The mounting rod (12) is movably installed on the outside of the top connecting shaft (11). The bottom connecting shaft (13) is movably installed on the lower end of the mounting rod (12). The reinforcing lifting ring (14) is fixedly installed on the outside of the bottom connecting shaft (13).

6. A precast concrete well according to claim 5, characterized in that: The mounting rod (12) rotates between the top connecting shaft (11) and the bottom connecting shaft (13), and the two reinforcing lifting rings (14) are located on one side of the two inspection mounting rings (2).