Anti-leakage cistern inner container

Abstract

The utility model discloses an anti-seepage cistern liner and relates to the technical field of water conservancy projects and municipal production and living water supply. The water cellar inner container is arranged in a water cellar, the water cellar inner container comprises an anti-seepage inner container body, a supporting frame, floating blocks and a well mouth fixing ring, the anti-seepage inner container body is placed in the water cellar, the supporting frame supports the anti-seepage inner container body on the inner wall of the water cellar from the inside, and the floating blocks are arranged on the top and the side wall of the anti-seepage inner container body. The wellhead fixing ring is arranged on the top of the anti-seepage liner and located on the outer wall of the water cellar top inlet. According to the utility model, the customized integrally-formed anti-seepage inner container is directly installed and fixed in the built pool to form a reliable waterproof layer; all parts are made of standard parts made of common materials, are assembled on site, and are low in manufacturing cost, convenient to install and light and convenient to transport; the water tank has high economical efficiency, convenience and universality, and can be applied by changing the shapes of the inner container and the bracket for the water tank with the cover in a cuboid, a cylinder or other shapes; the device can be widely applied to water conservancy and municipal engineering.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering and municipal production and domestic water supply technology, specifically to a leak-proof water cellar liner for repairing or constructing new prefabricated water cellars that have experienced leakage. Background Technology

[0002] Water cellars are widely used agricultural water storage facilities. However, they are not inexpensive to build and are prone to leakage problems during construction and use. The causes of leakage are varied and repairs are difficult. New water cellars require improved material properties and reinforced foundations for seepage prevention, both of which increase costs.

[0003] In current engineering practice, a large number of constructed water tanks and cisterns have become less effective or even abandoned due to leakage. Because the causes of leakage are diverse, including materials, workmanship, and foundation deformation, current simple and easy-to-implement repair methods, mainly localized repairs and the application of anti-seepage coatings, are insufficient to solve many problems. Localized repairs struggle to accurately detect all leakage points, comprehensive repairs are costly, and deformation caused by foundation settlement continues to change, making it difficult for new and old materials to bond properly. All of these factors reduce the effectiveness of anti-seepage measures, shorten the service life, and increase costs. Summary of the Invention

[0004] The present invention aims to solve the problems of high cost and difficulty in repair of existing water cellars, and provides a seepage-proof layer for the repair of water cellars that have leaked or for the construction of new prefabricated water cellars.

[0005] The present invention relates to a seepage-proof water cellar inner liner, which is installed inside a water cellar. The inner liner comprises a seepage-proof inner liner, a support frame, floats, and a wellhead fixing ring. The seepage-proof inner liner is placed inside the water cellar. The support frame supports the seepage-proof inner liner against the inner wall of the water cellar from the inside. Several floats are installed on the top and side walls of the seepage-proof inner liner. The wellhead fixing ring is installed on the top of the seepage-proof inner liner and is located on the outer wall of the top inlet of the water cellar.

[0006] The inner liner of the water cellar also includes a circular cover plate, which is made of corrosion-resistant thin steel plate and has a flexible padding layer such as hydraulic fabric or weather-resistant foam pasted on the bottom.

[0007] The impermeable liner is also equipped with floats on the top and side walls to increase the buoyancy of local areas of the impermeable liner.

[0008] The top of the seepage-proof inner liner is bent outward and fixed, forming a pipe passage at the bend, and the wellhead fixing ring is set inside the pipe passage.

[0009] The support frame includes PVC pipes and connecting fittings. Several PVC pipes are arranged horizontally and vertically, and are connected and fixed at intersections with connecting fittings.

[0010] The connecting fittings include tee connectors, four-way connectors, five-way connectors, six-way connectors, and external threaded pipes. The tee connectors, four-way connectors, five-way connectors, and six-way connectors are respectively installed at the intersection of the PVC pipes of the support frame; two horizontal or vertical PVC pipes are connected by external threaded pipes.

[0011] The external threaded tube is a hollow lead screw. A nut is installed on the float external threaded tube. The two ends of the external threaded tube are connected to two PVC pipes respectively. The nut contacts the end of the PVC pipe to limit the insertion depth of the PVC pipe. A gasket is provided between the side wall of the nut and the end of the PVC pipe.

[0012] The bottom of the water cellar is also equipped with a drain pipe and a sludge discharge pipe. The drain pipe is connected by a water tank connector, and the connection point is in smooth contact with the bottom of the seepage-proof inner tank. The sludge discharge pipe opening is located between the seepage-proof inner tank and the pool wall, and a reverse filter layer composed of a mixture of gravel and pebbles is also provided at the sludge discharge pipe opening.

[0013] The drainage pipe is fitted with a vertical pipe to prevent silt and sand from accumulating at the bottom from entering the drainage pipe.

[0014] This utility model's leak-proof water cellar inner liner uses a custom-made, one-piece molded leak-proof inner liner, which is directly installed and fixed inside the constructed water tank to form a reliable waterproof layer, thus solving the problem of water tank leakage. All components of the device are made of standard parts made of commonly used general-purpose materials, assembled on-site, resulting in low cost, convenient installation, reliable performance, and lightweight and convenient transportation. It has strong economic efficiency, convenience, and versatility. For covered water tanks of rectangular, cylindrical, or other shapes, the shape of the inner liner and support can be changed for application. It can be widely used in water conservancy and municipal engineering projects, and its advantages are even more prominent in situations with poor transportation conditions, giving it significant socio-economic value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the wellhead fixing ring structure.

[0017] Figure 3 This is a schematic diagram of the external threaded tube connection structure.

[0018] Figure 4 This is a schematic diagram of the water tank connector structure.

[0019] Figure 5 This is a schematic diagram of the seepage-proof inner liner of a square water cellar.

[0020] Figure 6 This is a schematic diagram of the support frame for the inner core of a square water cellar.

[0021] Among them, the following components are included: 1. Leak-proof inner tank; 2. PVC pipe; 3. T-connector; 4. Four-way connector; 5. Five-way connector; 6. Six-way connector; 7. Float; 8. Leakage hole; 9. Wellhead fixing ring; 10. Circular cover plate; 11. External threaded pipe; 12. Nut; 13. Washer; 14. Water tank connector; 15. Drainage pipe; 16. Vertical pipe; 17. Sludge discharge pipe; 18. Hydraulic fabric; 19. Foam; 20. Pool wall. Detailed Implementation

[0022] Example 1: A leak-proof water cellar inner liner, installed inside a water cellar, includes a leak-proof inner liner 1, a support frame, floats 7, and a wellhead fixing ring 9. The leak-proof inner liner 1 is placed inside the water cellar, and the support frame supports the leak-proof inner liner 1 against the inner wall of the water cellar from the inside. Several floats 7 are installed on the top and side walls of the leak-proof inner liner 1. The wellhead fixing ring 9 is installed on the top of the leak-proof inner liner 1 and located on the outer wall of the top inlet of the water cellar. The water cellar inner liner also includes a circular cover plate 10, which is made of corrosion-resistant thin steel plate, with a flexible padding layer such as hydraulic fabric 18 or weather-resistant foam 19 pasted on the lower side. Floats 7 are also installed on the top and side walls of the leak-proof inner liner 1 to increase the buoyancy of local areas of the leak-proof inner liner 1. The top of the leak-proof inner liner 1 is bent outwards and fixed, forming a pipe passage at the bend, and the wellhead fixing ring 9 is installed inside the pipe passage.

[0023] The support frame includes PVC pipes 2 and connecting fittings. Several PVC pipes 2 are arranged horizontally and vertically, and are connected and fixed at intersections with connecting fittings. The connecting fittings include tee connectors, four-way connectors 4, five-way connectors 5, six-way connectors 6, and external threaded pipes 11. The tee connectors, four-way connectors 4, five-way connectors 5, and six-way connectors 6 are respectively installed at the intersections of the PVC pipes 2 on the support frame; two horizontal or vertical PVC pipes 2 are connected by external threaded pipes 11. The external threaded pipe 11 is a hollow lead screw, and a nut 12 is installed on the external threaded pipe 11. Both ends of the external threaded pipe 11 are connected to two PVC pipes 2 respectively. The nut 12 contacts the end of the PVC pipe 2, limiting the insertion depth of the PVC pipe 2. A washer 13 is provided between the side wall of the nut 12 and the end of the PVC pipe 2. The bottom of the water cellar is also equipped with a drain pipe 15 and a sludge discharge pipe 17. The drain pipe 15 is connected to the water tank connector 14, and the connection point is in smooth contact with the bottom of the seepage-proof inner tank. The opening of the sludge discharge pipe 17 is located between the seepage-proof inner tank and the pool wall 20. A reverse filter layer composed of a mixture of gravel and pebbles is also provided at the opening of the sludge discharge pipe 17.

[0024] A vertical pipe 16 is inserted into the drain pipe 15 to prevent silt and sand from accumulating at the bottom from entering the drain pipe 15.

[0025] The spherical water cellar is relatively small in size. It uses 32mm diameter straight pipes and T-joints 3 and cross-four connectors 4 to build a drum-shaped support frame. The natural elasticity of the pipes can be used to form the arc in the support frame. The horizontal small-radius bends at the top and bottom can be pre-bent on the straight pipes on site before installation.

[0026] To maintain the stability of the support frame and provide strong support and positioning for the inner tank, it is necessary to ensure that the support frame is pressed tightly against the pool wall 20 in all directions. On the main supporting PVC pipe 2, an adjustable PVC pipe 2 extension joint consisting of an external threaded pipe 11, a nut 12, and a washer 13 is installed. The two ends of the external threaded pipe 11 are inserted into the PVC pipe 2 on both sides. By rotating the two nuts 12, the precise length of the PVC pipe 2 is adjusted as needed, so that the support frame is pressed tightly against the pool wall 20 in all directions, and the anti-seepage inner tank 1 is pressed tightly against the pool wall 20 of the water cellar to prevent the anti-seepage inner tank 1 from slipping off.

[0027] Thin EVA flexible floats 7 are attached to the inner wall and top of the seepage-proof inner tank 1. During the rise of the water level, the buoyancy generated by the floats 7 can stretch the seepage-proof inner tank 1 upward and prevent the inner tank from sliding down excessively.

[0028] The wellhead fixing ring 9 is made of PE pipe and is inserted into the pipe passage formed by folding and sewing the edge of the wellhead at the top of the waterproof inner tank 1 to prevent slippage after the outer opening loosens. A circular cover plate 10 is added to the top inlet of the water cellar for protection. The top surface of the circular cover plate 10 is made of galvanized aluminum-magnesium thin steel sheet, and the lower side is pasted with hydraulic fabric 18 or embedded with a flexible padding layer such as weather-resistant EVA foam 19, completely covering the top wellhead of the inner tank. The circular cover plate 10 is a safety protection component for the water cellar wellhead, preventing debris from falling into the water cellar, while also reducing mechanical damage and light radiation to the waterproof inner tank, delaying aging, and extending service life. The circular cover plate 10 is secured with heavy objects such as sandbags or wooden blocks.

[0029] Example 2: When installing the impermeable inner tank 1 and support frame in a square covered water tank, a rectangular support frame is erected. If the span is too large, standard pipes are generally used, with a basic unit length of 4m to reduce pipe cutting during erection. An intermediate column is also added. Meanwhile, flexible floats 7 and drainage holes 8 are installed on the horizontal top surface of the impermeable inner tank 1 to prevent water accumulation on top. At the square outlet at the top, a circular wellhead fixing ring 9 is used for fixation, and a circular cover plate 10 is used for protection. Depending on the actual situation, T-joints 3, four-way connectors 4, five-way connectors 5, six-way connectors 6, 90° bends, and other pipe fittings are used for connection and fixation. None of the six sides of the support frame have sharp edges. If a single column is used for support, a pipe seat and rubber gasket are added to the bottom to improve the stability of the impermeable inner tank 1.

Claims

1. A leak-proof inner liner for a water cellar, installed inside the water cellar, characterized in that... The water cellar inner liner includes a seepage-proof inner liner, a support frame, floats, and a wellhead fixing ring. The seepage-proof inner liner is placed inside the water cellar, and the support frame supports the seepage-proof inner liner against the inner wall of the water cellar from the inside. Several floats are set on the top and side walls of the seepage-proof inner liner, and the wellhead fixing ring is set on the top of the seepage-proof inner liner and located on the outer wall of the top inlet of the water cellar.

2. The leak-proof water cellar inner liner as described in claim 1, characterized in that... The inner liner of the water cellar also includes a circular cover plate, which is made of corrosion-resistant thin steel plate and has a flexible padding layer such as hydraulic fabric or weather-resistant foam pasted on the bottom.

3. The leak-proof water cellar inner liner as described in claim 1, characterized in that... The impermeable liner is also equipped with floats on the top and side walls to increase the buoyancy of local areas of the impermeable liner.

4. The leak-proof water cellar inner liner as described in claim 1, characterized in that... The top of the seepage-proof inner liner is bent outward and fixed, forming a pipe passage at the bend, and the wellhead fixing ring is set inside the pipe passage.

5. The leak-proof water cellar inner liner as described in claim 1, characterized in that... The support frame includes PVC pipes and connecting fittings. Several PVC pipes are arranged horizontally and vertically, and are connected and fixed at intersections with connecting fittings.

6. The leak-proof water cellar inner liner as described in claim 5, characterized in that... The connecting fittings include tee connectors, four-way connectors, five-way connectors, six-way connectors, and external threaded pipes. The tee connectors, four-way connectors, five-way connectors, and six-way connectors are respectively installed at the intersection of the PVC pipes of the support frame; two horizontal or vertical PVC pipes are connected by external threaded pipes.

7. The leak-proof water cellar inner liner as described in claim 6, characterized in that... The external threaded tube is a hollow lead screw with a nut installed on it. Both ends of the external threaded tube are connected to two PVC pipes respectively. The nut contacts the end of the PVC pipe to limit the insertion depth of the PVC pipe. A washer is provided between the side wall of the nut and the end of the PVC pipe.

8. The leak-proof water cellar inner liner as described in claim 1, characterized in that... The bottom of the water cellar is also equipped with a drain pipe and a sludge discharge pipe. The drain pipe is connected to the water tank connector, and the connection point is in smooth contact with the bottom of the seepage-proof inner tank. The sludge discharge pipe opening is located between the seepage-proof inner tank and the pool wall, and a reverse filter layer composed of a mixture of gravel and pebbles is also provided at the sludge discharge pipe opening.

9. The leak-proof water cellar inner liner as described in claim 8, characterized in that... A vertical pipe is inserted into the drain pipe.

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