A prefabricated well inner wall anti-leakage structure

CN224729000UActive Publication Date: 2026-09-08FOSHAN PANFENG CEMENT PROD CO LTD
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Patent Information

Application Number
CN202522233682.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-09-08
Estimated Expiration
2035-10-22

AI Technical Summary

Technical Problem

涂层施工受现场环境与工人技术水平影响较大,易出现涂刷不均、厚度不足或粘结不牢等问题,导致局部渗漏;整体式衬套则存在安装困难、与不规则井壁贴合度差、以及因温度变化或地基沉降产生应力集中而破裂的风险;接缝处、管道穿井壁处等关键部位更是渗漏的高发区,缺乏有效的强化密封与自适应支撑结构,难以应对土壤压力与水力冲击,严重影响预制井的整体防渗效果与使用寿命

Benefits of technology

1、本实用新型通过将防渗内衬铺设在预制井内壁,将底撑环放置在防渗内衬的内底面,将底撑环上端面的内撑杆贴紧在防渗内衬的内侧面,使防渗内衬贴紧在预制井的内壁,使预制井防渗漏。

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Abstract

The utility model discloses a kind of inner wall anti-seepage structures of precast well, it is related to precast well anti-seepage technical field.The utility model includes anti-seepage lining, bottom bracing ring and top bracing ring, bottom bracing ring is arranged in the inner bottom surface of anti-seepage lining, and the upper end ring surface of bottom bracing ring is vertically fixed with inner support rod in circumferential array, and the outer lateral wall of top bracing ring is fixed with a group of top support rods in circumferential array, and the upper end of each top support rod is fixedly connected in the inner support rod, far away from the one end of top bracing ring.The utility model is by being laid in precast well inner wall with anti-seepage lining, placing bottom bracing ring in the inner bottom surface of anti-seepage lining, and the inner support rod of bottom bracing ring upper end face is tightly attached to the inner surface of anti-seepage lining, so that anti-seepage lining is tightly attached to the inner wall of precast well, and precast well is prevented from leaking;By the upper end of each inner support rod being fixedly connected with a group of top support rods of top bracing ring outer lateral wall respectively, the upper end of each inner support rod is fixedly attached to anti-seepage lining, so that anti-seepage lining is tightly attached to the inner wall of precast well.
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Description

Technical Field

[0001] This utility model belongs to the field of prefabricated well anti-seepage technology, and in particular relates to an anti-seepage structure for the inner wall of a prefabricated well. Background Technology

[0002] During the construction and use of precast wells, the seepage prevention performance of the well wall is crucial for ensuring its long-term stable operation. Current technologies often employ methods such as applying a waterproof coating to the inside of the concrete well wall or laying an integral bushing. Coating application is significantly affected by the site environment and the skill level of the workers, easily leading to uneven application, insufficient thickness, or poor adhesion, resulting in localized leakage. Integral bushings, on the other hand, present challenges such as installation difficulties, poor fit to irregular well walls, and the risk of cracking due to stress concentration caused by temperature changes or foundation settlement. Joints and pipe penetrations through the well wall are particularly prone to leakage, lacking effective reinforced sealing and self-adaptive support structures, making it difficult to withstand soil pressure and hydraulic impact, severely affecting the overall seepage prevention effect and service life of the precast well.

[0003] To address these issues, we provide a prefabricated well inner wall anti-leakage structure. Utility Model Content

[0004] The purpose of this utility model is to provide a seepage-proof structure for the inner wall of a precast well. This structure involves laying a seepage-proof lining on the inner wall of the precast well, placing a bottom support ring on the inner bottom surface of the lining, and attaching the inner support rods on the upper end of the bottom support ring to the inner side of the lining, thus ensuring the seepage-proof lining adheres tightly to the inner wall of the precast well and preventing seepage. Furthermore, a top support ring is installed above the lining, and a set of top support rods on the outer wall of the top support ring are fixedly connected to the upper ends of each inner support rod, ensuring the upper ends of each inner support rod are firmly attached to the lining, thus maintaining the shape of the lining and ensuring the seepage-proof effect.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a prefabricated well inner wall seepage prevention structure, including a seepage prevention lining, a bottom support ring, and a top support ring. The seepage prevention lining is a cylindrical structure with an upward opening. The bottom support ring is set on the inner bottom surface of the seepage prevention lining. Inner support rods are vertically fixed in a circumferential array on the upper end of the bottom support ring. The inner support rods are attached to the inner wall of the seepage prevention lining. A set of top support rods are fixed in a circumferential array on the outer side wall of the top support ring. The end of each top support rod away from the top support ring is fixedly connected to the upper end of the inner support rod.

[0006] A further feature of this invention is that a separator bushing is provided inside the impermeable lining, and the outer wall of the separator bushing is attached to the inner wall of the impermeable lining.

[0007] A further feature of this invention is that a set of rod sleeves are axially arrayed and fixedly sleeved on the outer side wall of the inner support rod, and threaded ears are fixedly provided on both sides of the rod sleeves. A set of tie bolts is provided inside the partition bushing, and the tie bolts pass through the partition bushing and are threaded into the threaded ears.

[0008] A further feature of this invention is that a rod end sleeve is fixedly provided at the end of the top support rod away from the top support ring, and the rod end sleeve is fixedly sleeved on the upper end of the inner support rod.

[0009] A further feature of this invention is that a connecting ring is provided between the seepage-proof liner and the partition bushing, and the outer wall of the connecting ring is fixedly connected to the outer side of each inner support rod.

[0010] A further feature of this invention is that pipe bushings are fixedly connected to both sides of the lower end of the outer wall of the separator bushing, and the inner support rods and the two sides of the seepage-proof lining are respectively passed through the two pipe bushings.

[0011] A further feature of this invention is that an inner support ring is provided inside the pipe bushing, and an inner support bolt is screwed through the circumferential array of threads on the side wall of the inner support ring.

[0012] This utility model has the following beneficial effects: 1. This utility model lays the anti-seepage lining on the inner wall of the precast well, places the bottom support ring on the inner bottom surface of the anti-seepage lining, and attaches the inner support rod on the upper end of the bottom support ring to the inner side of the anti-seepage lining, so that the anti-seepage lining is attached to the inner wall of the precast well, thus preventing the precast well from leaking.

[0013] 2. This utility model sets a top support ring above the seepage-proof lining, and fixes a set of top support rods on the outer wall of the top support ring to the upper ends of each inner support rod, so that the upper ends of each inner support rod are fixedly attached to the seepage-proof lining, so that the seepage-proof lining is attached to the inner wall of the precast well, so that the seepage-proof lining maintains its shape and ensures the seepage-proof effect. 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. 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.

[0015] Figure 1 This is a schematic diagram of a prefabricated well inner wall anti-leakage structure.

[0016] Figure 2 This is an exploded view of the seepage-proof lining and bottom support ring.

[0017] Figure 3 This is an exploded view of the separating bushing and the inner strut.

[0018] Figure 4 This is a structural diagram of the separator liner and the impermeable inner liner.

[0019] Figure 5 This is a side sectional view of the partition bushing.

[0020] The attached diagram lists the components represented by each number as follows: 1-Impervious lining, 101-Separation bushing, 101a-Pipe bushing, 101a-1-Inner support ring, 101a-2-Inner support bolt, 2-Bottom support ring, 201-Inner support rod, 201a-Rod sleeve, 201a-1-Threaded lug, 201a-2-Tie bolt, 202-Connecting ring, 3-Top support ring, 301-Top support rod, 301a-Rod end sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1 Please see Figures 1 to 3 This utility model is a seepage-proof structure for the inner wall of a precast well, including a seepage-proof liner 1, a bottom support ring 2, and a top support ring 3. The seepage-proof liner 1 is laid on the inner wall of the precast well, and the bottom support ring 2 is placed on the inner bottom surface of the seepage-proof liner 1. The inner support rod 201 on the upper end of the bottom support ring 2 is pressed tightly against the inner side of the seepage-proof liner 1, making the seepage-proof liner 1 adhere tightly to the inner wall of the precast well, thus preventing seepage. A top support ring 3 is set above the seepage-proof liner 1, and a set of top support rods 301 on the outer side of the top support ring 3 are fixedly connected to the upper ends of each inner support rod 201, making the upper ends of each inner support rod 201 fixedly adhere to the seepage-proof liner 1, thus making the seepage-proof liner 1 adhere tightly to the inner wall of the precast well, maintaining the shape of the seepage-proof liner 1, and ensuring the seepage-proof effect.

[0023] Specifically, the impermeable liner 1 is a cylindrical structure with the opening facing upwards. The bottom support ring 2 is set on the inner bottom surface of the impermeable liner 1. The upper end of the bottom support ring 2 is circumferentially arrayed with vertically fixed inner support rods 201. The inner support rods 201 are attached to the inner wall of the impermeable liner 1. The outer side wall of the top support ring 3 is circumferentially arrayed with a set of top support rods 301. The end of each top support rod 301 away from the top support ring 3 is fixedly connected to the upper end of the inner support rod 201.

[0024] Furthermore, a partition bushing 101 is provided inside the seepage-proof lining 1. The outer side wall of the partition bushing 101 is attached to the inner side wall of the seepage-proof lining 1. The partition bushing 101 separates the inner support rod 201 from the water in the precast well, preventing water from causing corrosion to the inner support rod 201.

[0025] Furthermore, a set of sleeves 201a are axially arrayed and fixedly sleeved on the outer side wall of the inner support rod 201. Threaded ears 201a-1 are fixed on both sides of the sleeves 201a. A set of tie bolts 201a-2 are provided inside the partition bushing 101. The tie bolts 201a-2 pass through the partition bushing 101 and are threaded into the threaded ears 201a-1, so that the partition bushing 101 is tightly attached to the inner support rod 201, and the inner support rod 201 shapes the partition bushing 101.

[0026] Furthermore, a rod end sleeve 301a is fixedly provided at the end of the top support rod 301 away from the top support ring 3, and the rod end sleeve 301a is fixedly sleeved on the upper end of the inner support rod 201.

[0027] Furthermore, a connecting ring 202 is provided between the seepage-proof liner 1 and the partition liner 101. The outer wall of the connecting ring 202 is fixedly connected to the outer side of each inner support rod 201 to keep the inner support rods 201 stable.

[0028] The operation process in this embodiment is as follows: After the precast well is constructed, the seepage-proof lining 1 is first laid on the inner wall of the precast well. The bottom support ring 2 is placed on the inner bottom surface of the seepage-proof lining 1, and the inner support rods 201 on the upper end face of the bottom support ring 2 are pressed tightly against the inner wall of the seepage-proof lining 1. A set of rod sleeves 201a are fixedly sleeved on each inner support rod 201. The partition bushing 101 is laid between each inner support rod 201. Each tie bolt 201a-2 is passed through the partition bushing 101 and screwed onto the threads on both sides of the rod sleeve 201a. Ear 201a-1; The rod end sleeve 301a of each top support rod 301 on the outer side wall of the top support ring 3 is fixedly sleeved to the upper end of each inner support rod 201, so that the top of each inner support rod 201 is kept open and close to the inner side of the seepage-proof liner 1; The seepage-proof liner 1 plays a seepage-proof role for the precast well, and the separating bushing 101 separates the water in the precast well from the inner support rod 201 and the bottom support ring 2, preventing the water in the precast well from corroding the inner support rod 201 and the bottom support ring 2.

[0029] Example 2 Please see Figures 1 to 5 Based on Example 1, pipe bushings 101a are fixedly connected to both sides of the lower end of the outer wall of the partition bushing 101. The pipe bushings 101a on both sides are respectively threaded through the inner support rods 201 and the anti-seepage lining 1 and sleeved on the inner wall of the pipe on both sides of the precast well to prevent water in the precast well from seeping out from the pipe connection.

[0030] Specifically, the inner support rods 201 and the two sides of the seepage-proof lining 1 are respectively installed through the pipe bushings 101a on both sides.

[0031] Furthermore, the pipe bushing 101a is provided with an inner support ring 101a-1, and the inner support ring 101a-1 has an inner support bolt 101a-2 threaded through its side wall in a circumferential array.

[0032] The operation process in this embodiment is as follows: After the partition bushing 101 is laid between each inner support rod 201, the pipe bushings 101a on both sides are respectively inserted through the inner support rods 201 and the seepage-proof lining 1 and fitted onto the inner walls of the pipes on both sides of the precast well. The inner support ring 101a-1 is fitted into the pipe bushing 101a, and the inner support bolt 101a-2 is tightened so that the inner support bolt 101a-2 presses the pipe bushing 101a tightly against the inner wall of the pipe to prevent water from seeping out from the pipe connection when it flows through.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A pre-fabricated anti-seepage structure for well walls, comprising an anti-seepage lining (1), a bottom support ring (2) and a top support ring (3), characterized in that: The impermeable lining (1) is a cylindrical structure with an upward opening. The bottom support ring (2) is set on the inner bottom surface of the impermeable lining (1). The upper end of the bottom support ring (2) is circumferentially arrayed with vertically fixed inner support rods (201). The inner support rods (201) are attached to the inner wall of the impermeable lining (1). The outer side wall of the top support ring (3) is circumferentially arrayed with a set of top support rods (301). The end of each top support rod (301) away from the top support ring (3) is fixedly connected to the upper end of the inner support rod (201).

2. A pre-fabricated anti-seepage structure for an interior wall of a well according to claim 1, characterized in that: The impermeable lining (1) is provided with a partition liner (101) inside, and the outer side wall of the partition liner (101) is attached to the inner side wall of the impermeable lining (1).

3. A pre-fabricated anti-seepage structure for well inner wall according to claim 2, characterized in that: The outer side wall of the inner support rod (201) is axially arrayed with a set of rod sleeves (201a). Threaded ears (201a-1) are fixed on both sides of the rod sleeves (201a). A set of tie bolts (201a-2) is provided inside the partition bushing (101). The tie bolts (201a-2) pass through the partition bushing (101) and are threaded into the threaded ears (201a-1).

4. A pre-fabricated anti-seepage structure for well inner wall according to claim 3, characterized in that: The top support rod (301) is fixedly provided with a rod end sleeve (301a) at one end away from the top support ring (3), and the rod end sleeve (301a) is fixedly sleeved on the upper end of the inner support rod (201).

5. A pre-fabricated well wall anti-seepage structure according to claim 4, characterized in that: A connecting ring (202) is provided between the seepage-proof liner (1) and the partition bushing (101), and the outer wall of the connecting ring (202) is fixedly connected to the outer side of each inner support rod (201).

6. A pre-fabricated well wall anti-seepage structure according to claim 2, characterized in that: The lower ends of the outer wall of the partition bushing (101) are respectively fixedly connected to the pipe bushing (101a), and the pipe bushing (101a) on both sides is respectively provided with the inner support rod (201) and the two sides of the seepage-proof lining (1).

7. A pre-fabricated well wall anti-seepage structure according to claim 6, characterized in that: The pipe bushing (101a) is fitted with an inner support ring (101a-1), and the inner support ring (101a-1) has an inner support bolt (101a-2) threaded through its side wall in a circumferential array.