Swimming pool bottom lifting system

Abstract

The utility model discloses a swimming pool bottom lifting system which comprises a movable pool bottom. The first rotating shaft is arranged on a first side of the swimming pool top; the two second rotating shafts are suitable for being arranged on the second side and the third side corresponding to the top of the swimming pool correspondingly, and the first driving piece is connected to the first rotating shaft and used for driving the first rotating shaft to rotate; the second side and the third side of the top of the swimming pool are each provided with at least one winding and lifting mechanism, each winding and lifting mechanism comprises a winding frame and a winding piece, the first end of each winding piece is connected with the movable pool bottom, the second end of each winding piece is connected with the corresponding winding frame, and the winding frames are connected with the second rotating shafts which can drive the winding frames to rotate when rotating. The rotating winding frame can drive the winding piece to be wound on the winding frame in order or to be released from the winding frame in order. When the first driving piece drives the first rotating shaft to rotate, the two second rotating shafts can be driven to synchronously rotate, the two sides of the movable pool bottom can be driven to synchronously ascend and descend, and the stability of the movable pool bottom in the ascending and descending process can be kept.

Description

Technical Field

[0001] This utility model relates to the field of swimming pool equipment technology, and further to a swimming pool bottom lifting system. Background Technology

[0002] Swimming is a skill in which a person floats upwards in the water by relying on the buoyancy of the water and moves their body rhythmically in the water by using the buoyancy of the limbs. It is a popular form of exercise.

[0003] Swimming pools are dedicated spaces for people to engage in swimming. Currently, swimming pools typically consist of a channel of a certain depth dug into the ground, filled with a certain amount of water, and then ready for use. Existing swimming pools usually occupy a significant amount of space, resulting in substantial waste when not in use. Furthermore, the fixed depth of existing swimming pools fails to meet the needs of people of different ages, heights, and beginners. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a swimming pool bottom lifting system. When the first driving component drives the first rotating shaft to rotate, it can drive the two second rotating shafts to rotate synchronously, thereby driving the two sides of the movable pool bottom to rise and fall synchronously, which helps to maintain the stability of the movable pool bottom during the lifting process.

[0005] To achieve the above objectives, the present invention aims to provide a swimming pool bottom lifting system, comprising:

[0006] bottom of the activity pool;

[0007] A first rotating shaft, the first rotating shaft being adapted to be disposed on a first side of the top of the swimming pool;

[0008] Two second rotating shafts are respectively adapted to be installed on the corresponding second and third sides of the top of the swimming pool. The axes of the second rotating shafts are intersected with the axis of the first rotating shaft, and the two ends of the first rotating shaft are respectively engaged with the ends of the two second rotating shafts. When the first rotating shaft rotates, it can drive the two second rotating shafts to rotate synchronously.

[0009] A first driving component is connected to the first rotating shaft and is used to drive the first rotating shaft to rotate.

[0010] At least one winding and lifting mechanism is provided on the second side and the third side of the top of the swimming pool. The winding and lifting mechanism includes a winding frame and a winding member. The first end of the winding member is connected to the movable pool bottom, and the second end is connected to the winding frame. The winding frame is connected to the second rotating shaft. When the second rotating shaft rotates, it can drive the winding frame to rotate. The rotating winding frame can drive the winding member to be wound in an orderly manner around the winding frame or to be released in an orderly manner from the winding frame, so as to control the first end to drive the movable pool bottom to rise and fall.

[0011] In some embodiments, a first bevel gear is provided at both ends of the first rotating shaft, and a second bevel gear is provided at the ends of the two second rotating shafts connected to the first rotating shaft, wherein the first bevel gear and the second bevel gear mesh with each other.

[0012] In some embodiments, the second rotating shaft is provided with a first gear corresponding to the position of the winding frame, and a second gear is provided on one side of the winding frame, with the first gear and the second gear meshing with each other.

[0013] In some embodiments, the winding lifting mechanism further includes a housing that surrounds to form a first mounting space, and the winding frame is rotatably mounted in the first mounting space;

[0014] The bottom of the activity pool has a lifting shaft on one side corresponding to the position of the winding lifting mechanism;

[0015] The first end of the winding member is fixed to the housing, the second end of the winding member is fixed to the winding frame, the portion of the winding member located between the first end and the second end is folded to form a folding space, and the lifting shaft is located at the bottom of the folding space and abuts against the winding member.

[0016] In some embodiments, the winding and lifting mechanism further includes a locking assembly, the locking assembly including a locking shaft movably mounted to the housing;

[0017] The bottom of the activity pool has a locking hole on one side corresponding to the position of the locking shaft;

[0018] When the winding lifting mechanism drives the movable pool bottom to rise to the point where the locking hole corresponds to the locking shaft, the end of the locking shaft can be pushed into the locking hole to limit the movable pool bottom.

[0019] In some embodiments, the locking assembly further includes a second drive member connected to the locking shaft for driving the locking shaft to move into or out of the locking hole;

[0020] The locking assembly further includes a first position detector and a controller. The first position detector is disposed on the side of the housing facing the bottom of the active pool and is used to detect whether the bottom of the active pool has risen to the top preset position. The controller is connected to the first position detector and the second drive member. When the first position detector detects that the bottom of the active pool has risen to the top preset position, the controller can control the second drive member to drive the locking shaft to move into the locking hole.

[0021] In some embodiments, the locking assembly further includes a second position detector, which includes a first detection element and a second detection element. The first detection element is connected to the locking shaft, and the second detection element is mounted on the housing. When the locking shaft moves, it can drive the first detection element to move, so that the first detection element approaches or moves away from the second detection element. The state of the locking shaft can be determined based on the distance between the first detection element and the second detection element.

[0022] In some embodiments, the swimming pool bottom lifting system further includes a vertical guide rail adapted to be installed on the side wall of the swimming pool corresponding to the position of the winding lifting mechanism;

[0023] The vertical guide rail has a lifting groove arranged along its length, and the side of the vertical guide rail facing the bottom of the active pool has a sliding opening that communicates with the lifting groove;

[0024] A connecting plate is provided on one side of the bottom of the activity pool, corresponding to the position of the vertical guide rail. A slider is provided on the side of the connecting plate away from the bottom of the activity pool. The connecting plate passes through the sliding opening, and the slider is slidably installed in the lifting groove.

[0025] In some embodiments, the slider has a lifting groove, and the lifting shaft is mounted in the lifting groove.

[0026] In some variations, the winding element is a strip structure or a wire rope. Attached Figure Description

[0027] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0028] Figure 1 This is an application diagram of the preferred embodiment of the swimming pool bottom lifting system of this utility model when applied to a swimming pool;

[0029] Figure 2 This is a three-dimensional structural diagram of a preferred embodiment of the swimming pool bottom lifting system of this utility model;

[0030] Figure 3 This is a partial structural schematic diagram of the winding lifting mechanism of the swimming pool bottom lifting system according to a preferred embodiment of the present invention;

[0031] Figure 4 This is a partial structural schematic diagram of the winding lifting mechanism of the swimming pool bottom lifting system according to a preferred embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the swimming pool bottom lifting system of the preferred embodiment of the present invention, showing the combination of the winding lifting mechanism and the vertical guide rail.

[0033] Figure 6 This is a schematic diagram of the preferred embodiment of the swimming pool bottom lifting system of the present invention, showing the movable pool bottom in the middle of the swimming pool.

[0034] Figure 7 This is a schematic diagram of the structure of the swimming pool bottom lifting system of the preferred embodiment of the present invention, showing the movable pool bottom in the position of the bottom of the swimming pool. Detailed Implementation

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0036] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0037] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0038] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] refer to Figures 1 to 7 This application provides a swimming pool bottom lifting system 100, which includes a movable pool bottom 10, which is installed in a swimming pool 200 in a height-adjustable manner. When the movable pool bottom 10 rises to the top opening of the swimming pool 200, it can be transformed into a platform deck, stage, or recreational area, at which point the swimming pool disappears, seamlessly and safely converting the original space from one functional area to another. By adjusting the position of the movable pool bottom 10 within the swimming pool 200, the swimming pool 200 can be adjusted to different depths according to different needs. This allows for easy transformation of the swimming pool 200 from a competitive swimming pool of a certain depth into a sports area for divers or water polo players, or into a shallower children's swimming pool. The swimming pool bottom lifting system 100 provided by this application increases the flexibility of pool use by adjusting the position of the movable pool bottom 10. When the movable pool bottom 10 rises to be level with the ground, it is particularly useful for situations requiring seasonal closure of the swimming pool or for improving the pool's insulation performance, thus achieving safety, environmental protection, and improved space utilization.

[0041] refer to Figure 1 and Figure 2 Furthermore, the swimming pool bottom lifting system 100 includes a first rotating shaft 21, two second rotating shafts 22, and a first driving member 30. The first rotating shaft 21 is adapted to be disposed on a first side 201 of the top of the swimming pool 200; the two second rotating shafts 22 are respectively adapted to be disposed on corresponding second sides 202 and third sides 203 of the top of the swimming pool 200. The axes of the second rotating shafts 22 are staggered with the axes of the first rotating shaft 21, and the two ends of the first rotating shaft 21 are respectively engaged with the ends of the two second rotating shafts 22. The first driving member 30 is connected to the first rotating shaft 21 and is used to drive the first rotating shaft 21 to rotate. When the first rotating shaft 21 rotates, it can drive the two second rotating shafts 22 to rotate synchronously.

[0042] Furthermore, the pool bottom lifting system 100 further includes a winding lifting mechanism 40, and at least one winding lifting mechanism 40 is provided on the second side 202 and the third side 203 of the top of the swimming pool 200.

[0043] The winding and lifting mechanism 40 includes a winding frame 41 and a winding member 42. The first end of the winding member 42 is connected to the movable pool bottom 10, and the second end is connected to the winding frame 41. The winding frame 41 is connected to the second rotating shaft 22. When the second rotating shaft 22 rotates, it can drive the winding frame 41 to rotate. The rotating winding frame 41 can drive the winding member 42 to be wound around the winding frame 41 in an orderly manner or to be released from the winding frame 41 in an orderly manner, so as to control the first end of the winding member 42 to drive the movable pool bottom 10 to rise and fall.

[0044] In this application, when the first driving member 30 drives the first rotating shaft 21 to rotate, it can drive the two second rotating shafts 22 to rotate synchronously, which can drive the two sides of the active pool bottom 10 to rise and fall synchronously, which helps to maintain the stability of the active pool bottom 10 during the rising and falling process.

[0045] In some embodiments, the first drive unit 30 is a dual-axis motor, and there are two first rotating shafts 21. The two first rotating shafts 21 are respectively connected to the two output shafts of the dual-axis motor, and the ends of the two first rotating shafts 21 away from the dual-axis motor are respectively connected to the two second rotating shafts 22.

[0046] In some embodiments, the first drive unit 30 is a single-axis motor. A first meshing tooth is mounted on the output shaft of the first drive unit 30, and second meshing teeth are mounted at preset positions on the first rotating shaft 21. The first and second meshing teeth mesh with each other. Preferably, the diameter of the first meshing tooth is smaller than the diameter of the second meshing tooth, which, while achieving transmission, also acts as a speed reducer, reducing the rotational speed of the first rotating shaft 21 and increasing torque.

[0047] Furthermore, both ends of the first rotating shaft 21 are provided with first bevel gears, and the ends of the two second rotating shafts 22 connected to the first rotating shaft 21 are provided with second bevel gears. The first bevel gears and the second bevel gears mesh with each other. When the first bevel gear rotates along the axial direction of the first rotating shaft 21, it can drive the second bevel gear to rotate along the axial direction of the second rotating shaft 22.

[0048] refer to Figure 4Furthermore, a first gear 221 is provided on the second rotating shaft 22 corresponding to the position of the winding frame 41, and a second gear 411 is provided on one side of the winding frame 41. The first gear 221 and the second gear 411 mesh with each other. When the second rotating shaft 22 rotates, it can drive the first gear 221 to rotate synchronously, the first gear 221 can drive the second gear 411 to rotate, and the second gear 411 can drive the winding frame 41 to rotate synchronously.

[0049] In some embodiments, the winding frame 41 is directly mounted at a preset position on the second rotating shaft 22, and the winding frame 41 rotates synchronously when the second rotating shaft 22 rotates.

[0050] refer to Figure 3 The winding and lifting mechanism 40 further includes a housing 43, which surrounds and forms a first mounting space 430. The winding frame 41 is rotatably mounted in the first mounting space 430. A lifting shaft 11 is located on one side of the movable pool bottom 10 corresponding to the position of the winding and lifting mechanism 40. The first end 421 of the winding member 42 is fixed to the housing 43, and the second end 422 of the winding member 42 is fixed to the winding frame 41. The portion of the winding member 42 located between the first end 421 and the second end 422 is folded to form a folding space 420. The lifting shaft 11 is located at the bottom of the folding space 420 and abuts against the winding member 42. In this modified embodiment, the winding member 42 is folded at the position of the lifting shaft 11, enabling the movable pool bottom 10 to be raised and lowered via the double-layered winding member 42, thus improving the safety during the raising and lowering process of the movable pool bottom 10.

[0051] Specifically, the winding and lifting mechanism 40 further includes a first roller 441 and a second roller 442 installed within the first mounting space 430. The winding and lifting mechanism 40 further includes a retainer 444 installed at the end of the housing 43 away from the movable pool bottom 10. The first end 421 of the winding member 42 is fixed to the retainer 444, thereby fixing the first end 421 of the winding member 42 to the housing 43. Both the first roller 441 and the second roller 443 are installed at the end of the housing 43 near the movable pool bottom 10. The first roller 441 supports the first end 421, keeping a portion of the first end 421 horizontal and a portion vertical; the second roller 442 supports the second end 422, keeping a portion of the second end 422 horizontal and a portion vertical.

[0052] Furthermore, the winding lifting mechanism 40 further includes a third roller 443 disposed within the first mounting space 430 and located between the second roller 442 and the winding frame 41. The third roller 443 is used to support the second end 422 and improve the stability of the second end 422 winding around the winding frame 41.

[0053] Preferably, the winding element 42 is a strip structure, such as, but not limited to, a wire rope lifting belt, a tear-resistant lifting belt, a cotton canvas lifting belt, or a high-strength polyester lifting belt. In some modified embodiments, the winding element 42 can also be a wire rope.

[0054] refer to Figure 3 Furthermore, the winding and lifting mechanism 40 further includes a locking component 45, which includes a locking shaft 451 movably mounted on the housing 43. A locking hole is located on one side of the movable pool bottom 10 corresponding to the locking shaft 451. When the winding and lifting mechanism 40 raises the movable pool bottom 10 to the position where the locking hole corresponds to the locking shaft 451, the end of the locking shaft 451 can be pushed into the locking hole to limit the movement of the movable pool bottom 10. When the movable pool bottom 10 rises to the top opening of the swimming pool 200, the locking shaft 451 secures the movable pool bottom 10, preventing it from suddenly descending in the event of damage to the winding component 42, thus improving safety.

[0055] Furthermore, the locking assembly 45 also includes a second driving member 452, which is connected to the locking shaft 451 and is used to drive the locking shaft 451 to move into or out of the locking hole. It is understood that when the locking shaft 451 moves into the locking hole, the locking assembly 45 is in a locked state, and the movable pool bottom 10 cannot fall; when the locking shaft 451 leaves the locking hole, the locking assembly 45 is in an unlocked state, and the movable pool bottom 10 can fall. Preferably, the second driving member 452 can drive the locking shaft 451 to move along its own axial direction to switch between the unlocked state and the locked state.

[0056] Specifically, the locking assembly 45 further includes a first position detector (not shown in the figure) and a controller (not shown in the figure). The first position detector is disposed on the side of the housing 43 facing the movable pool bottom 10, and is used to detect whether the movable pool bottom 10 has risen to a preset top position. The controller is connected to the first position detector and the second drive member 452. When the first position detector detects that the movable pool bottom 10 has risen to the preset top position, the controller can control the second drive member 452 to drive the locking shaft 451 to move into the locking hole. The first position detector is, for example, but not limited to, an optical sensor, which emits light in the direction of the movable pool bottom 10 and determines whether the movable pool bottom 10 has risen to the preset top position by receiving reflected light or whether the light is blocked. In some embodiments, the first position detector can also be an image acquisition and recognition device, which determines the position of the movable pool bottom by acquiring an image. The type of the first position detector should not constitute a limitation of this application, as long as it can achieve the effect of detecting the position of the movable pool bottom.

[0057] refer to Figure 3 The locking assembly 45 further includes a second position detector 453, which includes a first detection element 4531 and a second detection element 4532. The first detection element 4531 is connected to the locking shaft 451, and the second detection element 4532 is mounted on the housing 43. When the locking shaft 451 moves, it can drive the first detection element 4531 to move, causing the first detection element 4531 to approach or move away from the second detection element 4532. The state of the locking shaft 451 can be determined based on the distance between the first detection element 4531 and the second detection element 4532. Preferably, when the first detection element 4531 and the second detection element 4532 approach each other, the locking shaft 451 moves away from the locking hole; when the first detection element 4531 and the second detection element 4532 move away from each other, the locking shaft 451 moves into the locking hole. Preferably, the second position detector 452 is a proximity switch. When the first detection element 4531 and the second detection element 4532 are close to each other, the circuit controlling the operation of the first driving element 30 is turned on, which can control the descent of the movable pool bottom 10. When the first detection element 4531 and the second detection element 4532 are far apart, the circuit controlling the operation of the first driving element 30 is not turned on, and the descent of the movable pool bottom 10 cannot be controlled.

[0058] refer to Figure 5Furthermore, the swimming pool bottom lifting system 100 further includes a vertical guide rail 50, which is adapted to be installed on the side wall of the swimming pool corresponding to the position of the winding lifting mechanism 40. The vertical guide rail 50 has a lifting groove 51 arranged along its length, and the side of the vertical guide rail 50 facing the movable pool bottom 10 has a sliding opening 52 communicating with the lifting groove 51. A connecting plate 13 is provided on one side of the movable pool bottom 10 corresponding to the position of the vertical guide rail 50, and a slider 14 is provided on the side of the connecting plate 13 away from the movable pool bottom 10. The connecting plate 13 passes through the sliding opening 52, and the slider 14 is slidably installed in the lifting groove 51. The slider 14 has a lifting groove 140, and the lifting shaft 11 is installed in the lifting groove 140. The winding member 42 is also installed in the lifting groove 51 of the vertical guide rail 50, which can drive the movable pool bottom 10 to rise and fall along the vertical guide rail 50, so as to prevent the movable pool bottom 10 from deviating during the lifting process.

[0059] Furthermore, the bottom of the active pool 10 has a maintenance port 15 at a preset position, through which maintenance personnel can enter the area below the active pool bottom 10 to perform maintenance on the active pool bottom 10.

[0060] The housing 43 further includes a base housing 431, a first housing 432, and a second housing 433. The winding frame 41 is installed in the space formed by the base housing 431. The first housing 432 and the second housing 433 are respectively installed on both sides of the base housing 431. The first gear 411 and the second gear 411 are both installed in the space formed by the first housing 432. The locking assembly 45 is installed in the space formed by the second housing 433.

[0061] refer to Figure 2 The movable pool bottom 10 is raised and lowered along the vertical guide rail 50 to the top position of the swimming pool 200, and the movable pool bottom 10 can be flush with the ground. (Reference) Figure 6 The bottom of the active pool 10 is raised and lowered along the vertical guide rail 50 to the middle position of the swimming pool 200, which can make the depth of the swimming pool 200 shallower. (Reference) Figure 7 The bottom of the activity pool 10 is raised and lowered along the vertical guide rail 50 to the bottom of the swimming pool 200.

[0062] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A swimming pool bottom lifting system, characterized in that, include: bottom of the activity pool; A first rotating shaft, the first rotating shaft being adapted to be disposed on a first side of the top of the swimming pool; Two second rotating shafts are respectively adapted to be installed on the corresponding second and third sides of the top of the swimming pool. The axes of the second rotating shafts are intersected with the axis of the first rotating shaft, and the two ends of the first rotating shaft are respectively engaged with the ends of the two second rotating shafts. When the first rotating shaft rotates, it can drive the two second rotating shafts to rotate synchronously. A first driving component is connected to the first rotating shaft and is used to drive the first rotating shaft to rotate. At least one winding and lifting mechanism is provided on the second side and the third side of the top of the swimming pool. The winding and lifting mechanism includes a winding frame and a winding member. The first end of the winding member is connected to the movable pool bottom, and the second end is connected to the winding frame. The winding frame is connected to the second rotating shaft. When the second rotating shaft rotates, it can drive the winding frame to rotate. The rotating winding frame can drive the winding member to be wound in an orderly manner around the winding frame or to be released in an orderly manner from the winding frame, so as to control the first end to drive the movable pool bottom to rise and fall.

2. The swimming pool bottom lifting system according to claim 1, characterized in that, Both ends of the first rotating shaft are provided with a first bevel gear, and the ends of the two second rotating shafts connected to the first rotating shaft are provided with a second bevel gear, and the first bevel gear and the second bevel gear mesh with each other.

3. The swimming pool bottom lifting system according to claim 1, characterized in that, The second rotating shaft is provided with a first gear corresponding to the position of the winding frame, and a second gear is provided on one side of the winding frame. The first gear and the second gear mesh with each other.

4. The swimming pool bottom lifting system according to claim 3, characterized in that, The winding and lifting mechanism further includes a housing, which surrounds to form a first mounting space, and the winding frame is rotatably mounted in the first mounting space; The bottom of the activity pool has a lifting shaft on one side corresponding to the position of the winding lifting mechanism; The first end of the winding member is fixed to the housing, the second end of the winding member is fixed to the winding frame, the portion of the winding member located between the first end and the second end is folded to form a folding space, and the lifting shaft is located at the bottom of the folding space and abuts against the winding member.

5. The swimming pool bottom lifting system according to claim 4, characterized in that, The winding and lifting mechanism further includes a locking component, the locking component including a locking shaft, the locking shaft being movably mounted to the housing; The bottom of the activity pool has a locking hole on one side corresponding to the position of the locking shaft; When the winding lifting mechanism drives the movable pool bottom to rise to the point where the locking hole corresponds to the locking shaft, the end of the locking shaft can be pushed into the locking hole to limit the movable pool bottom.

6. The swimming pool bottom lifting system according to claim 5, characterized in that, The locking assembly further includes a second driving member connected to the locking shaft, which is used to drive the locking shaft to move into the locking hole or out of the locking hole; The locking assembly further includes a first position detector and a controller. The first position detector is disposed on the side of the housing facing the bottom of the active pool and is used to detect whether the bottom of the active pool has risen to the top preset position. The controller is connected to the first position detector and the second drive member. When the first position detector detects that the bottom of the active pool has risen to the top preset position, the controller can control the second drive member to drive the locking shaft to move into the locking hole.

7. The swimming pool bottom lifting system according to claim 6, characterized in that, The locking assembly further includes a second position detector, which includes a first detection element and a second detection element. The first detection element is connected to the locking shaft, and the second detection element is installed in the housing. When the locking shaft moves, it can drive the first detection element to move, so that the first detection element approaches or moves away from the second detection element. The state of the locking shaft can be determined based on the distance between the first detection element and the second detection element.

8. The swimming pool bottom lifting system according to claim 7, characterized in that, The swimming pool bottom lifting system further includes a vertical guide rail, which is adapted to be installed on the side wall of the swimming pool at a position corresponding to the winding lifting mechanism; The vertical guide rail has a lifting groove arranged along its length, and the side of the vertical guide rail facing the bottom of the active pool has a sliding opening that communicates with the lifting groove; A connecting plate is provided on one side of the bottom of the activity pool, corresponding to the position of the vertical guide rail. A slider is provided on the side of the connecting plate away from the bottom of the activity pool. The connecting plate passes through the sliding opening, and the slider is slidably installed in the lifting groove.

9. The swimming pool bottom lifting system according to claim 8, characterized in that, The slider has a lifting groove, and the lifting shaft is installed in the lifting groove.

10. The swimming pool bottom lifting system according to claim 1, characterized in that, The winding component is a strip structure or a steel wire rope.

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