Fabricated swimming pool and construction method thereof

Abstract

The invention provides a fabricated swimming pool and a construction method thereof.The fabricated swimming pool comprises a cast-in-place pool bottom, standard sections are arranged on linear sections around the cast-in-place pool bottom, corner sections are arranged on corner sections, a plurality of detachable cutting plates are arranged between the standard sections, and a circulating system is further arranged on one side of each standard section; detachable filtering layers are further arranged in the standard sections and the corner sections, a pipeline of the circulating system is arranged below the filtering layers, cutting grooves are further formed in the two ends of the standard sections and the corner sections and used for containing cutting plates, the cutting plates are convenient for grouting connection, a water outlet is further formed in the cast-in-place pond bottom and communicated with the circulating system, and the circulating system is communicated with the water outlet. The filtering layers and the circulating pipelines are integrated in the sections, synchronous construction of the system and the pool body is achieved, efficiency is improved, the detachable top cover and the filtering layers facilitate later maintenance and replacement, the sealing performance is ensured through cast-in-place of the pool bottom and high-strength waterproof glue grouting, and the advantages of rapid construction, efficient assembly and reliable waterproof performance are achieved; the problems that a traditional swimming pool is long in construction period and low in efficiency are solved.

Description

Technical Field

[0001] This invention relates to the field of swimming pool construction, and in particular to a prefabricated swimming pool and its construction method. Background Technology

[0002] Traditional swimming pools often use concrete brick walls, requiring on-site excavation of the foundation pit, reinforcement binding, formwork support, concrete pouring and waterproofing. Each step must be carried out sequentially and depends on on-site working conditions, with a construction period of up to several months.

[0003] Meanwhile, concrete curing takes a lot of time, and the joints of brick walls are prone to sealing problems due to construction errors. Subsequent repairs require damaging the original structure, making the operation cumbersome. The filtration and circulation systems of traditional swimming pools need to be installed separately with pipes and equipment after the pool body is formed. There are many overlapping procedures, making coordination difficult and resulting in low overall construction efficiency, which makes it difficult to meet the needs of rapid construction and flexible application. Therefore, a more efficient and faster swimming pool construction method is needed to improve construction efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a prefabricated swimming pool and its construction method, which solves the problems of traditional swimming pools that mostly use concrete brick wall structures, requiring on-site excavation of foundation pits, rebar binding, formwork support, concrete pouring and waterproofing construction, etc., each step of which needs to be carried out sequentially and depends on on-site working conditions, resulting in long construction cycles and low efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a prefabricated swimming pool, including a cast-in-place pool bottom, standard segments are provided on the straight sections around the cast-in-place pool bottom, corner segments are provided on the corner sections, multiple detachable insert plates are provided between the standard segments, a circulation system is also provided on one side of the standard segments, and a detachable filter layer is also provided inside the standard segments and corner segments. The pipeline of the circulation system is laid below the filter layer. The standard section and the corner section are also equipped with skewer slots at both ends. The skewer slots are used to place the insert plate, and the insert plate is convenient for grouting connection. The bottom of the cast-in-place pool is also equipped with a water outlet, which is connected to the circulation system.

[0006] In a preferred embodiment, the standard segment includes a straight section wall, the interior of which is provided with a straight section cavity, the top of which is provided with a detachable straight section top cover, the top of which is provided with a first groove, and the bottom of which is provided with a first protrusion, the first protrusion being used to engage with the first groove.

[0007] In the preferred embodiment, the bottom of the straight section cavity is U-shaped, and a straight section groove is provided at the lowest point of the U-shape. Installation grooves are provided on both sides of the straight section groove. The straight section groove is used to lay pipes, and the installation grooves are used to fix pipes. A straight section limiting block is also provided on the inner wall of the straight section cavity. The straight section limiting block is used to place the filter layer.

[0008] In the preferred embodiment, a straight section return water trough is provided on one side of the straight section top cover, and a straight section step is provided above the straight section return water trough. The straight section step is used to place the straight section screen plate. The straight section screen plate has multiple holes. The straight section return water trough is used to receive the water overflowing from the pool. The straight section screen plate is used to pre-filter large debris in the pool water. A through water hole is provided below the straight section return water trough. The water hole is connected to the inner cavity of the straight section. A rib is also provided between one side of the bottom of the straight section return water tank and the top cover of the straight section. The rib is used to improve the support strength of the top cover of the straight section.

[0009] In the preferred embodiment, the corner segment includes a corner wall, the interior of which is provided with an arc-shaped corner cavity, the top of which is provided with a detachable corner top cover, the bottom of which is provided with a second protrusion, the top of which is provided with a second groove, the second groove being used to engage with the second protrusion, and the corner cavity being used to connect with the vertically distributed straight section cavities on both sides. The inner wall of the corner cavity is also provided with a corner limiting block, which is used to place the filter layer. The bottom of the corner cavity is also provided with a corner pipe groove, which is used to place the corner bend, and the corner bend is used to connect the pipes in the straight section pipe grooves on both sides. One side of the corner top cover is also provided with an arc-shaped corner return water trough, which is used to connect the straight return water troughs on both sides. The corner return water trough is also provided with a corner step, which is used to place the corner screen plate.

[0010] In the preferred embodiment, the circulation system includes a straight return water pipe, with connecting support plates on both sides of the straight return water pipe for connecting to the mounting groove. The top of the straight return water pipe is also provided with a return water pipe port, with a detachable return water end in the return water pipe port. Below the return water end is an end connecting pipe for threaded connection to the return water pipe port. The return water end is inverted cone shape, and the lower inclined surface of the inverted cone is provided with multiple micro holes. The straight return water pipe is divided into multiple segments distributed in each standard segment, and the straight return water pipes are connected by flexible pipes. In the preferred embodiment, a main return water pipe is also provided above the straight section of the return water pipe near the circulation system, and the main return water pipe is used to connect to the circulating water pump. The outlet end of the circulating water pump is also equipped with a main outlet pipe. Between the main outlet pipe and the circulating water pump, there are also filters, thermostats, and disinfection devices that are standard equipment in swimming pools. The main outlet pipe extends to the bottom of the cast-in-place pool. Multiple water outlet pipes are also distributed on the main outlet pipe, and the water outlet pipes are connected to the water outlet.

[0011] In the preferred embodiment, the filter layer includes a straight section filter body and a corner filter body. The straight section filter body is arranged in the straight section, and the corner filter body is arranged in the corner section. The shells of the straight section filter body and the corner filter body are provided with multiple pores. Both the corner filter and the straight filter have internal filter chambers. Inside the filter chambers is a polypropylene woven mesh, and inside the polypropylene woven mesh are high-density polyethylene porous filter beads and high-purity quartz sand. The high-purity quartz sand is placed below the high-density polyethylene porous filter beads. The filter layer is used for secondary filtration of the pool return water.

[0012] In the preferred embodiment, the cutting plate includes a grouting section, and a sharp part is provided below the grouting section, which facilitates the downward insertion of the cutting plate; The grouting section has a central grouting hole inside. One side of the grouting section has multiple wide grooves, and the other side has multiple end grooves. Multiple grout outlet holes are provided in the wide grooves and end grooves. The grout outlet holes are connected to the central grouting hole. The central grouting hole is used to inject high-strength waterproof adhesive to connect the sections and waterproof them.

[0013] The construction method applied to the above-mentioned prefabricated swimming pool includes: S1. Transport the standard segments and corner segments prefabricated with high-strength waterproof UHPC concrete to the site, and install the straight return water pipe in the straight pipe trench of the standard segment; S2. Excavate the pool foundation pit and the layout pit of the circulation system, reserve the pipe laying depth at the bottom of the pool, and level the pool foundation pit and the layout pit of the circulation system. S3. Plan the length and width dimensions of the swimming pool inside the foundation pit, and place the standard segments and corner segments inside the foundation pit according to the marking requirements; S4. Splice standard segments and corner segments, insert insert plates into the insert slots at the splicing points, and after the insert plates are inserted into place, inject high-strength waterproof adhesive from the central grouting hole until the grout overflows. S5. After the high-strength waterproof adhesive has cured, connect all the straight return water pipes using flexible pipes. Place the flexible pipe in the corner pipe trench and install the main return water pipe on the straight return water pipe on the side closest to the circulation system to connect it to the circulation system. S6. Install the circulation system and lay the main water outlet pipe and multiple water outlet pipes at the bottom of the pool. The height of the water outlet pipes is arranged according to the slope of the bottom of the pool. After the pipes are laid, pour concrete inside the pool pit and waterproof it to form a sloping cast-in-place pool bottom. S7. Then place a filter layer inside the standard segment and the corner segment, place a straight section cover plate and a corner cover plate on the top of the standard segment and the corner segment respectively, and then place a straight section sieve plate and a corner sieve plate on the top of the straight section cover plate and the corner cover plate respectively. S8. After construction is completed, water should be circulated to test the pool's sealing and water cleanliness.

[0014] This invention provides a prefabricated swimming pool and its construction method, which has the following beneficial effects: 1. This prefabricated swimming pool uses prefabricated standard segments and corner segments spliced ​​together, combined with grouting connection of cutting plates, which greatly reduces on-site wet work and shortens the construction period by more than 60%; 2. The filter layer and circulation pipe are integrated inside the segment, enabling simultaneous construction of the system and the pool body, improving efficiency. The detachable top cover and filter layer facilitate later maintenance and replacement. The cast-in-place pool bottom and high-strength waterproof grouting ensure sealing performance. It has the advantages of rapid construction, efficient assembly and reliable waterproofing, solving the problems of long construction cycle and low efficiency of traditional swimming pools. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is an isometric view of the prefabricated swimming pool of the present invention; Figure 2 This is an axonometric view of the prefabricated swimming pool of the present invention from another direction; Figure 3 This is a partial cross-sectional schematic diagram of the junction between the standard segment and the corner segment of the present invention; Figure 4 This is a cross-sectional schematic diagram of the return water end of the present invention; Figure 5 This is a cross-sectional schematic diagram of the prefabricated swimming pool of the present invention; Figure 6 This is a cross-sectional schematic diagram of the circulation system of the present invention; Figure 7 This is a cross-sectional schematic diagram of a standard segment of the present invention; Figure 8 This is a cross-sectional view of the standard segment of the present invention from another direction; Figure 9 This is an exploded view of the standard segment and corner segment of the present invention; Figure 10 This is a partial axial view of the cutting plate of the present invention; Figure 11 This is an axial side view of the straight section cover plate and the corner cover plate of the present invention; Figure 12 This is an exploded view of the standard segment and corner segment of the present invention from another direction; Figure 13 This is an axonometric view of a standard segment of the present invention; Figure 14 This is an exploded schematic diagram of the corner segment of the present invention.

[0016] In the diagram: 1. Cast-in-place pool bottom; 101. Outlet; 2. Standard segment; 201. Straight segment wall; 202. Straight segment top cover; 203. Straight segment screen plate; 204. Straight segment return water trough; 205. Installation groove; 206. Straight segment inner cavity; 207. First groove; 208. First protrusion; 209. Rib plate; 210. Water passage hole; 211. Straight segment limiting block; 212. Straight segment step; 212. Straight segment pipe groove; 213. Corner segment; 301. Corner wall; 302. Corner top cover; 303. Corner screen plate; 304. Second protrusion; 305. Second groove; 306. Corner inner cavity. Corner limiting block 307; Corner step 308; Corner return water trough 309; Corner pipe groove 310; Circulation system 4; Straight section return water pipe 401; Return water pipe port 402; End connecting pipe 403; Return water end 404; Return water main pipe 405; Outlet water main pipe 406; Outlet water pipe 407; Connecting support plate 408; Micro hole 409; Filter layer 5; Straight section filter body 501; Filter chamber 502; Corner filter body 503; Insert plate 6; Sharp part 601; Grouting section 602; Central grouting hole 603; Wide surface groove 604; End face groove 605. Detailed Implementation

[0017] Example 1 like Figure 1-14 As shown, a prefabricated swimming pool includes a cast-in-place pool bottom 1, standard segments 2 are provided around the straight sections of the cast-in-place pool bottom 1, corner segments 3 are provided around the corner sections, multiple detachable insert plates 6 are provided between the standard segments 2, a circulation system 4 is also provided on one side of the standard segments 2, and a detachable filter layer 5 is also provided inside the standard segments 2 and the corner segments 3. The pipes of the circulation system 4 are laid below the filter layer 5. The two ends of the standard section 2 and the corner section 3 are also provided with skewer slots 213. The skewer slots 213 are used to place the insert plate 6, and the insert plate 6 is convenient for grouting connection. The bottom of the cast-in-place pool 1 is also provided with an outlet 101, which is connected to the circulation system 4.

[0018] In the preferred embodiment, the standard segment 2 includes a straight wall 201, the interior of the straight wall 201 is provided with a straight cavity 206, the top of the straight cavity 206 is provided with a detachable straight top cover 202, the top of the straight wall 201 is provided with a first groove 207, and the bottom of the straight top cover 202 is provided with a first protrusion 208, which is used to engage with the first groove 207.

[0019] In the preferred embodiment, the bottom of the straight section inner cavity 206 is U-shaped, and a straight section pipe groove 212 is provided at the lowest point of the U-shape. Installation grooves 205 are provided on both sides of the straight section pipe groove 212. The straight section pipe groove 212 is used to lay pipes, and the installation grooves 205 are used to fix pipes. The inner wall of the straight section inner cavity 206 is also provided with a straight section limiting block 211, which is used to place the filter layer 5.

[0020] In the preferred embodiment, a straight section return water trough 204 is also provided on one side of the straight section top cover 202. A straight section step 212 is provided above the straight section return water trough 204. The straight section step 212 is used to place the straight section screen plate 203. The straight section screen plate 203 is provided with multiple holes. The straight section return water trough 204 is used to receive the water overflowing from the pool. The straight section screen plate 203 is used to pre-filter large debris in the pool water. A through water passage hole 210 is also provided below the straight section return water trough 204. The water passage hole 210 is connected to the straight section inner cavity 206. A rib 209 is also provided between one side of the bottom of the straight section return water tank 204 and the straight section top cover 202. The rib 209 is used to improve the support strength of the straight section top cover 202.

[0021] In the preferred embodiment, the corner segment 3 includes a corner wall 301, the interior of the corner wall 301 is provided with an arc-shaped corner cavity 306, the top of the corner cavity 306 is provided with a detachable corner top cover 302, the bottom of the corner top cover 302 is provided with a second protrusion 304, the top of the corner wall 301 is provided with a second groove 305, the second groove 305 is used to fit with the second protrusion 304, and the corner cavity 306 is used to connect the vertically distributed straight section cavities 306 on both sides; The inner wall of the corner cavity 306 is also provided with a corner limiting block 307, which is used to place the filter layer 5. The bottom of the corner cavity 306 is also provided with a corner pipe groove 310, which is used to place a corner bend, and the corner bend is used to connect the pipes in the straight section pipe grooves 212 on both sides. The corner top cover 302 is also provided with an arc-shaped corner return water trough 309 on one side. The corner return water trough 309 is used to connect the straight return water troughs 204 on both sides. The corner return water trough 309 is also provided with a corner step 308, which is used to place the corner screen plate 303.

[0022] In the preferred embodiment, the circulation system 4 includes a straight return water pipe 401, with connecting support plates 408 on both sides of the straight return water pipe 401 for connecting to the mounting groove 205. The top of the straight return water pipe 401 is also provided with a return water pipe port 402, and a detachable return water end 404 is provided in the return water pipe port 402. Below the return water end 404 is an end connecting pipe 403 for threaded connection with the return water pipe port 402. The return water end 404 is inverted cone shape, and the lower inclined surface of the inverted cone is provided with multiple micro holes 409. The straight return water pipe 401 is divided into multiple segments distributed in each standard segment 2, and the straight return water pipes 401 are connected by flexible pipes. In the preferred embodiment, a return water main pipe 405 is also provided above the straight section of the return water pipe 401 near the circulation system 4. The return water main pipe 405 is used to connect to the circulating water pump. The outlet end of the circulating water pump is also equipped with an outlet main pipe 406. Between the outlet main pipe 406 and the circulating water pump, there are also filters, thermostats and disinfection devices that are commonly used in swimming pools. The outlet main pipe 406 extends to the bottom of the cast-in-place pool 1. Multiple outlet water pipes 407 are distributed on the outlet main pipe 406. The outlet water pipes 407 are connected to the outlet 101.

[0023] In the preferred embodiment, the filter layer 5 includes a straight section filter body 501 and a corner filter body 503. The straight section filter body 501 is arranged in the straight section 2, and the corner filter body 503 is arranged in the corner section 3. The shells of the straight section filter body 501 and the corner filter body 503 are provided with multiple pores. Both the corner filter body 503 and the straight section filter body 501 have a filter chamber 502 inside. The filter chamber 502 has a polypropylene woven mesh inside. The polypropylene woven mesh has high-density polyethylene porous filter beads and high-purity quartz sand inside. The high-purity quartz sand is placed below the high-density polyethylene porous filter beads. The filter layer 5 is used for secondary filtration of the water returning from the pool.

[0024] In the preferred embodiment, the cutting plate 6 includes a grouting section 602, and a sharp part 601 is provided below the grouting section 602, which facilitates the downward insertion of the cutting plate 6. The grouting section 602 has a central grouting hole 603 inside. One side of the grouting section 602 has multiple wide grooves 604, and the other side has multiple end grooves 605. Multiple grout outlet holes are provided in the wide grooves 604 and end grooves 605. The grout outlet holes are connected to the central grouting hole 603. The central grouting hole 603 is used to inject high-strength waterproof adhesive to connect the sections and waterproof them.

[0025] The construction method applied to the above-mentioned prefabricated swimming pool includes: S1. Transport the standard segment 2 and corner segment 3, which are prefabricated using high-strength waterproof UHPC concrete, to the site, and install the straight return water pipe 401 in the straight pipe trench 310 in the standard segment 2. S2. Excavate the pool foundation pit and the layout pit of the circulation system, reserve the pipe laying depth at the bottom of the pool, and level the pool foundation pit and the layout pit of the circulation system. S3. Plan the length and width dimensions of the swimming pool inside the foundation pit, and place the standard segment 2 and corner segment 3 inside the foundation pit according to the marking requirements; S4. Splice standard segment 2 and corner segment 3, insert insertion plate 6 into insertion slot 213 at the splice, and after insertion plate 6 is inserted into place, inject high-strength waterproof glue from the central grouting hole 603 until the grouting port overflows. S5. After the high-strength waterproof adhesive has cured, use a flexible pipe to connect all the straight return water pipes 401. Place a flexible pipe in the corner pipe groove 310 and install a return water main pipe 405 on the straight return water pipe 401 on the side close to the circulation system 4 to connect it to the circulation system 4. S6. Install the circulation system 4 and lay the main water outlet 406 and multiple water outlet pipes 407 at the bottom of the pool. The height of the water outlet pipes 407 is arranged according to the slope of the bottom of the pool. After the pipes are laid, pour concrete inside the pool pit and waterproof it to form a sloping cast-in-place pool bottom 1. S7. Then place the filter layer 5 inside the standard section 2 and the corner section 3. Place the straight section cover plate 202 and the corner cover plate 303 on the top of the standard section 2 and the corner section 3 respectively. Then place the straight section sieve plate 203 and the corner sieve plate 303 on the top of the straight section cover plate 202 and the corner cover plate 303 respectively. S8. After construction is completed, water should be circulated to test the pool's sealing and water cleanliness.

[0026] Example 2, in conjunction with Example 1, further illustrates a detailed construction method for a prefabricated swimming pool as follows: S1. Precast Components and Preliminary Preparations: Standard segments 2 and corner segments 3 are precast in the factory using high-strength waterproof UHPC concrete. After prefabrication, they are transported to the construction site. At the same time, all components of the circulation system 4 are prepared, including straight return water pipe 401, return water main pipe 405, outlet water main pipe 406, outlet water pipe 407, circulating water pump, filter device, constant temperature device, disinfection device, straight filter body 501 and corner filter body 503 of filter layer 5, whose filter chamber 502 is pre-filled with polypropylene woven mesh, high-density polyethylene porous filter beads and high-purity quartz sand, with the high-purity quartz sand located below the high-density polyethylene porous filter beads, cutting plate 6, and high-strength waterproof adhesive, etc. The dimensions, pore integrity and equipment performance of each component are checked to ensure that they meet the construction requirements.

[0027] S2. Excavation and Site Preparation: Based on the pool design dimensions, excavate the pool foundation pit and the layout pit for the circulation system 4 at the designated location; reserve the required depth for pipe laying at the bottom of the pool foundation pit, and then use leveling equipment to level the bottom surface of the pool foundation pit and the layout pit for the circulation system, remove debris and gravel from the pit, and ensure that the bottom of the pit is flat and solid, laying the foundation for subsequent component installation.

[0028] S3. Component positioning and preliminary placement: In the leveled pool foundation pit, plan the length and width dimensions of the pool according to the design drawings and mark them; according to the marking requirements, place the prefabricated standard segment 2 and corner segment 3 in the straight section and corner section of the foundation pit respectively, adjust the position of each segment to ensure that the splicing points between segments are aligned, and initially fix the segments to prevent displacement.

[0029] S4. Segment splicing and sealing treatment: Adjust the splicing points between standard segments 2 and between standard segment 2 and corner segment 3 to make the splicing gaps uniform; insert the insert plate 6 into the insert slot 213 at each splicing point, and easily insert it into place using the sharp part 601 at the bottom of the insert plate 6; after insertion, inject high-strength waterproof adhesive into the center grouting hole 603 of the grouting section 602 of the insert plate 6. Observe the flow of adhesive during the grouting process until adhesive overflows from the grouting port, ensuring that the high-strength waterproof adhesive fills the splicing gaps and the wide groove 604 and end groove 605 of the insert plate 6, so as to achieve a stable connection and waterproof seal of each segment; wait for the high-strength waterproof adhesive to solidify naturally, and take protective measures during this period to avoid external interference affecting the solidification effect.

[0030] S5. Installation and Connection of Circulation Pipeline: After the high-strength waterproof adhesive has cured, the installation of the circulation system 4 pipeline begins. First, lay the straight return water pipe 401 in the U-shaped straight pipe groove 212 at the bottom of the straight section cavity 206 of the standard section 2. Fix the straight return water pipe 401 through the mounting grooves 205 on both sides of the straight pipe groove 212, so that the connecting support plates 408 on both sides of the straight return water pipe 401 are tightly connected to the mounting grooves 205. A corner bend is placed in the corner pipe groove 310 at the bottom of the corner inner cavity 306 of the corner segment 3. The flexible pipe is used to connect the straight return water pipes 401 in all standard segments 2. At the same time, the corner bend connects the straight return water pipes 401 in the straight pipe grooves 212 on both sides. Install a detachable return water end 404 in the return water port 402 of the straight return water pipe 401, and thread the end connecting pipe 403 below the return water end 404 to the return water port 402 to ensure a tight connection. Install a return water main pipe 405 above the straight return water pipe 401 on the side close to the circulation system 4, so that the return water main pipe 405 is connected to the straight return water pipe 401, and connect the other end of the return water main pipe 405 to the circulating water pump.

[0031] S6. Construction of cast-in-place pool bottom and laying of water outlet pipes: After the circulating return water pipes are installed, the main water outlet pipe 406 and multiple water outlet pipes 407 are laid inside the pool foundation pit. The height of the water outlet pipes 407 is adjusted according to the slope of the pool bottom to ensure that the pool water can flow back evenly. After the pipes are laid, concrete is poured in the pool foundation pit. During the pouring process, care is taken to protect the pipes to avoid displacement or damage. At the same time, the concrete surface is waterproofed to finally form a sloping cast-in-place pool bottom 1. After the concrete of the cast-in-place pool bottom 1 has solidified, the water outlet pipe 407 is connected to the pre-set water outlet 101 of the cast-in-place pool bottom 1 to complete the connection between the water outlet pipe and the pool bottom. At the water outlet end of the circulating water pump, the filter device, thermostat and disinfection device equipped with conventional swimming pools are installed in sequence. Then the disinfection device is connected to the water outlet main pipe 406 so that the circulation system 4 forms a complete water channel.

[0032] S7. Installation of filter layer, top cover, and sieve plate: Place the straight section filter body 501 on the straight section limiting block 211 on the inner wall of the straight section cavity 206 of standard section 2, and place the corner filter body 503 on the corner limiting block 307 on the inner wall of the corner cavity 306 of corner section 3 to ensure that the filter layer 5 is placed stably and firmly; then install the straight section top cover 202 on the top of the straight section wall 201 of standard section 2, so that the first protrusion 208 below the straight section top cover 202 fits into the first groove 207 on the top of the straight section wall 201, so as to achieve precise installation of the straight section top cover 202; Install a corner cover 302 at the top of the corner wall 301 of the corner segment 3, so that the second protrusion 304 below the corner cover 302 fits into the second groove 305 at the top of the corner wall 301; finally, place a straight section screen plate 203 on the straight section step 212 of the straight section cover 202, and place a corner screen plate 303 on the corner step 308 of the corner cover 302, to ensure that the screen plate covers the return water tank area and that the pores on the screen plate are not blocked.

[0033] S8. System Inspection and Debugging: After completing all construction steps, fill the pool with water, start the circulation system 4, and observe the flow of pool water in the system; check for leaks at all joints, pipe connections and the cast-in-place pool bottom 1. If leaks are found, repair them in time. At the same time, the cleanliness of the pool water after circulation filtration is tested, and the filtration devices and disinfection devices of filter layer 5 and circulation system 4 are checked to see if they are working properly. The system is then adjusted according to the test results until the pool is well sealed and the cleanliness of the pool water meets the usage standards, and the construction of the prefabricated pool is completed.

[0034] The circulation filtration process of a prefabricated swimming pool is as follows: As water is continuously added to the bottom of the pool, and under the action of its own gravity and the suction of the circulating water pump, the surface water will overflow into the straight section return water trough 204 on the straight section top cover 202 of the standard section 2 and the arc-shaped corner return water trough 309 on the corner top cover 302 of the corner section 3. The corner return water trough 309 connects to the straight section return water troughs 204 on both sides to ensure water flow convergence. The water first passes through the straight section screen plate 203 and the corner screen plate 303. The multiple pores on the screen plate perform preliminary filtration of large debris in the water, such as leaves and hair clumps. The intercepted debris remains on the surface of the screen plate for easy cleaning later. The water that has been preliminarily filtered enters the straight section inner cavity 206 of the standard section 2 through the water passage 210 that runs through the bottom of the straight section return water tank 204. At the same time, it enters the corner inner cavity 306 of the corner section 3 through the corresponding channel of the corner return water tank 309.

[0035] The water flow entering the straight section inner cavity 206 contacts the straight section filter body 501, and the water flow entering the corner inner cavity 306 contacts the corner filter body 503. Since the straight section filter body 501 and the corner filter body 503 have multiple pores on their shells, the water flow can smoothly enter the filter chamber 502 inside them. Inside the filter chamber 502, the water first passes through the polypropylene woven mesh for further filtration, removing smaller suspended impurities. Then it flows through high-density polyethylene porous filter beads. The porous structure of the filter beads adsorbs and traps tiny particles and some organic matter in the water. Finally, the water flows through the high-purity quartz sand located below. The quartz sand further filters out the fine impurities remaining in the water, achieving secondary filtration of the pool return water. The water after secondary filtration continues to flow downwards and enters the straight return water pipe 401 in the straight section pipe channel 212 and the corner pipe channel 310.

[0036] Water flows into the straight return pipe 401 and then through multiple micro-holes 409 on the inclined surface below the inverted conical return end 404. These micro-holes prevent impurities from clogging the pipe inlet and allow the water to flow steadily into the straight return pipe 401. The water then flows through the flexible pipe and the corner bend and is collected in the main return pipe 405. The main return pipe 405 delivers the water to the circulating water pump, which provides power to push the water to the subsequent filtration device for finer filtration, removing tiny impurities and colloidal substances that are difficult to intercept in the water. After being treated by the filtration device, the water flows into the thermostat, which heats or cools the water according to the set temperature to maintain the water temperature within a suitable range for swimming. The water then flows into the disinfection device, which sterilizes and disinfects the water, killing pathogens such as E. coli and Legionella, to ensure the safety and hygiene of the water.

[0037] After filtration, temperature control, and disinfection, the clean water flows into the main outlet pipe 406. The main outlet pipe 406 distributes the water flow to multiple outlet branches 407. The outlet branches 407 are reasonably distributed according to the inclination of the cast-in-place pool bottom 1. Finally, the water flows back into the pool evenly through the pre-set outlet 101 of the cast-in-place pool bottom 1 to replenish the pool water volume and promote the circulation of water in the pool, ensuring that the overall water quality in the pool remains clean and forming a complete water circulation filtration closed loop.

[0038] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A prefabricated swimming pool, characterized by: The system includes a cast-in-place pool bottom (1), a standard segment (2) around the straight section of the cast-in-place pool bottom (1), a corner segment (3) around the corner section, multiple detachable insert plates (6) between the standard segments (2), a circulation system (4) on one side of the standard segment (2), and a detachable filter layer (5) inside the standard segment (2) and the corner segment (3). The pipes of the circulation system (4) are laid below the filter layer (5). The standard section (2) and the corner section (3) are also provided with skewer slots (213). The skewer slots (213) are used to place the skewer plate (6). The skewer plate (6) is convenient for grouting connection. The bottom of the cast-in-place pool (1) is also provided with an outlet (101), which is connected to the circulation system (4).

2. The prefabricated swimming pool according to claim 1, characterized in that: The standard segment (2) includes a straight wall (201), the inside of which is provided with a straight cavity (206), the top of which is provided with a detachable straight top cover (202), the top of which is provided with a first groove (207), and the bottom of which is provided with a first protrusion (208), which is used to fit into the first groove (207).

3. The prefabricated swimming pool according to claim 2, characterized in that: The bottom of the straight section cavity (206) is U-shaped, and a straight section pipe groove (212) is provided at the lowest point of the U-shape. Installation grooves (205) are provided on both sides of the straight section pipe groove (212). The straight section pipe groove (212) is used to lay pipes, and the installation grooves (205) are used to fix pipes. The inner wall of the straight section cavity (206) is also provided with a straight section limiting block (211). The straight section limiting block (211) is used to place the filter layer (5).

4. A prefabricated swimming pool according to claim 2, characterized in that: A straight section return water trough (204) is provided on one side of the straight section top cover (202). A straight section step (212) is provided above the straight section return water trough (204). The straight section step (212) is used to place the straight section screen plate (203). The straight section screen plate (203) has multiple holes. The straight section return water trough (204) is used to receive the overflow water from the pool. The straight section screen plate (203) is used to initially filter large debris in the pool water. A through water hole (210) is provided below the straight section return water trough (204). The through water hole (210) is connected to the straight section inner cavity (206). A rib (209) is provided between one side of the bottom of the straight section return water tank (204) and the straight section top cover (202). The rib (209) is used to improve the support strength of the straight section top cover (202).

5. A prefabricated swimming pool according to claim 1, characterized in that: The corner segment (3) includes a corner wall (301), the interior of which is provided with an arc-shaped corner cavity (306), the top of which is provided with a detachable corner top cover (302), the bottom of which is provided with a second protrusion (304), the top of which is provided with a second groove (305), the second groove (305) is used to fit into the second protrusion (304), and the corner cavity (306) is used to connect the vertically distributed straight section cavities (306) on both sides. The inner wall of the corner cavity (306) is also provided with a corner limiting block (307), which is used to place the filter layer (5). The bottom of the corner cavity (306) is also provided with a corner pipe groove (310), which is used to place a corner bend, and the corner bend is used to connect the pipes in the straight section pipe grooves (212) on both sides. The corner top cover (302) is also provided with an arc-shaped corner return water trough (309) on one side. The corner return water trough (309) is used to connect the straight return water troughs (204) on both sides. The corner return water trough (309) is also provided with a corner step (308). The corner step (308) is used to place the corner screen plate (303).

6. A prefabricated swimming pool according to claim 1, characterized in that: The circulation system (4) includes a straight return water pipe (401), with connecting support plates (408) on both sides of the straight return water pipe (401). The connecting support plates (408) are used to connect with the mounting groove (205). The top of the straight return water pipe (401) is also provided with a return water pipe port (402). A detachable return water end (404) is provided in the return water pipe port (402). An end connecting pipe (403) is provided below the return water end (404). The end connecting pipe (403) is used to connect with the return water pipe port (402) by thread. The return water end (404) is inverted cone shape, and multiple micro holes (409) are provided on the lower inclined surface of the inverted cone. The straight return water pipe (401) is multi-segmented and distributed in each standard segment (2). The straight return water pipes (401) are connected by flexible pipes.

7. A prefabricated swimming pool according to claim 6, characterized in that: Above the straight section of return water pipe (401) near the circulation system (4), there is also a return water main pipe (405), which is used to connect to the circulating water pump; The outlet end of the circulating water pump is also provided with an outlet main pipe (406). Between the outlet main pipe (406) and the circulating water pump, there are also conventional swimming pool equipment such as a filter device, a constant temperature device, and a disinfection device. The outlet main pipe (406) extends to the bottom of the cast-in-place pool (1). Multiple outlet water pipes (407) are also distributed on the outlet main pipe (406). The outlet water pipes (407) are connected to the outlet (101).

8. A prefabricated swimming pool according to claim 1, characterized in that: The filter layer (5) includes a straight section filter (501) and a corner filter (503). The straight section filter (501) is arranged in the straight section (2), and the corner filter (503) is arranged in the corner section (3). The shells of the straight section filter (501) and the corner filter (503) are provided with multiple pores. Both the corner filter (503) and the straight section filter (501) are equipped with a filter chamber (502). The filter chamber (502) is equipped with a polypropylene woven mesh. The polypropylene woven mesh is equipped with high-density polyethylene porous filter beads and high-purity quartz sand. The high-purity quartz sand is placed below the high-density polyethylene porous filter beads. The filter layer (5) is used for secondary filtration of the water returning from the pool.

9. A prefabricated swimming pool according to claim 1, characterized in that: The cutting plate (6) includes a grouting section (602), and a sharp part (601) is provided below the grouting section (602). The sharp part (601) facilitates the downward insertion of the cutting plate (6); The grouting section (602) has a central grouting hole (603) inside. One side of the grouting section (602) has multiple wide grooves (604), and the other side has multiple end grooves (605). Multiple grout outlet holes are provided in the wide grooves (604) and end grooves (605). The grout outlet holes are connected to the central grouting hole (603). The central grouting hole (603) is used to inject high-strength waterproof adhesive to connect the segments and waterproof them.

10. A construction method for a prefabricated swimming pool according to any one of claims 1-9, characterized in that: The method includes: S1. Transport the standard segment (2) and corner segment (3) prefabricated with high-strength waterproof UHPC concrete to the site, and install the straight return water pipe (401) in the straight pipe trench (310) in the standard segment (2). S2. Excavate the pool foundation pit and the layout pit of the circulation system, reserve the pipe laying depth at the bottom of the pool, and level the pool foundation pit and the layout pit of the circulation system. S3. Plan the length and width of the pool in the foundation pit, and place the standard segment (2) and corner segment (3) in the foundation pit according to the marking requirements; S4. Splice the standard segment (2) and the corner segment (3), and insert the insert plate (6) into the insert slot (213) at the splice. After the insert plate (6) is inserted into place, inject high-strength waterproof glue from the central grouting hole (603) until the grouting port overflows. S5. After the high-strength waterproof adhesive has solidified, use a flexible pipe to connect all the straight return water pipes (401), place a flexible pipe in the corner pipe groove (310), and install a return water main pipe (405) on the straight return water pipe (401) on the side close to the circulation system (4) to connect with the circulation system (4). S6. Install the circulation system (4) and lay the main outlet pipe (406) and multiple outlet pipes (407) at the bottom of the pool. The height of the outlet pipes (407) is arranged according to the inclination of the bottom of the pool. After the pipes are laid, pour concrete inside the pool pit and waterproof it to form an inclined cast-in-place pool bottom (1). S7. Then place a filter layer (5) inside the standard segment (2) and the corner segment (3), place a straight section cover plate (202) and a corner cover plate (303) on the top of the standard segment (2) and the corner segment (3) respectively, and place a straight section sieve plate (203) and a corner sieve plate (303) on the top of the straight section cover plate (202) and the corner cover plate (303) respectively. S8. After construction is completed, water should be circulated to test the pool's sealing and water cleanliness.

Images