Swimming pool cover

Abstract

The utility model provides a swimming pool cover which comprises a flexible covering layer, the flexible covering layer comprises a middle part and a peripheral part, the peripheral part is connected with the middle part, the middle part is used for covering a swimming pool opening of a swimming pool, and the peripheral part is used for surrounding the outer side wall of the swimming pool; the peripheral part is provided with a first outer edge; the hanging lug is connected with the covering layer, the hanging lug is arranged on the peripheral part, and a gap exists between the hanging lug and the first outer edge; the hanging lug is provided with a first rope penetrating opening. The first lacing rope body is arranged in the first rope penetrating opening in a penetrating mode, a gap exists between the first lacing rope body and the first outer edge, the first lacing rope body is used for lacing the peripheral part to the outer side wall of the swimming pool, the flexible covering layer can completely cover the opening of the swimming pool, dust, fallen leaves, insects and other sundries can be effectively prevented from entering the swimming pool, and the swimming pool is convenient to use. Therefore, pool water is kept clean, and cleaning frequency and maintenance cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of swimming pool protective covers, and in particular to a swimming pool cover. Background Technology

[0002] As people's living standards improve, home swimming pools are becoming increasingly popular during the hot summer months. However, maintaining an outdoor detached pool is a challenge. Exposed pools easily accumulate dust, fallen leaves, insects, and other debris, which can contaminate the water, increasing the frequency and cost of cleaning and maintenance. Currently, pool covers on the market are typically made of lightweight materials. In actual use, because the fabric is so light, the pool cover is easily blown away or even swept away by strong winds, leaving the pool exposed and affecting its usability.

[0003] Therefore, there is an urgent need in the market for a pool cover that is not easily detached from the pool and has better protective performance, so as to provide users with a better user experience. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a swimming pool cover, comprising: a flexible covering layer, the flexible covering layer including a middle portion and an outer portion, the outer portion being connected to the middle portion, the middle portion being used to cover the pool opening of the swimming pool, and the outer portion being used to surround the outer wall of the swimming pool; the outer portion having a first outer edge;

[0005] The hook is connected to the covering layer and is located on the outer periphery, with a gap between the hook and the first outer edge; the hook has a first loop opening.

[0006] The first tightening rope is inserted through the first rope opening and there is a gap between the first tightening rope and the first outer edge. The first tightening rope is used to tighten the outer part to the outer wall of the pool.

[0007] The beneficial effects of this utility model are as follows: This utility model provides a swimming pool cover, which includes: a flexible covering layer, comprising a middle part and an outer part, the outer part being connected to the middle part, the middle part being used to cover the pool opening, and the outer part being used to surround the outer wall of the pool; the outer part having a first outer edge; a hanging ear, the hanging ear being connected to the covering layer, the hanging ear being disposed on the outer part, and there being a gap between the hanging ear and the first outer edge; the hanging ear having a first rope-threading opening; and a first tightening rope, the first tightening rope being disposed on the first rope-threading opening, and there being a gap between the first tightening rope and the first outer edge, the first tightening rope being used to tighten the outer part to the outer wall of the pool, so that the flexible covering layer can completely cover the pool opening, effectively preventing dust, fallen leaves, insects and other debris from entering the pool, thereby keeping the pool water clean and reducing cleaning frequency and maintenance costs. Furthermore, the outer portion of the flexible covering layer surrounds the outer wall of the pool, increasing the stability of the pool cover through friction between the outer portion and the outer wall, preventing displacement. Further, because the lugs have a first rope opening, and a first tightening rope is threaded through this opening, the first tightening rope secures the outer portion to the outer wall, further enhancing the pool cover's wind resistance; it is not easily blown away or displaced even in strong winds. Moreover, because there are gaps between the lugs and the first outer edge, and between the first tightening rope and the first outer edge, the first outer edge and the first tightening rope together surround and secure the outer wall of the pool, further enhancing the pool cover's wind resistance; it is not easily blown away or displaced even in strong winds. Even if the first tightening rope shifts and detaches from the outer wall, the first outer edge can still surround the outer wall, preventing the outer portion from detaching. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 yes Figure 1 Enlarged view of point A;

[0012] Figure 3 yes Figure 1 Enlarged view of point B;

[0013] Figure 4 This is another overall structural schematic diagram of this utility model;

[0014] Figure 5 yes Figure 4 Enlarged view of point C;

[0015] Figure 6 yes Figure 4 Enlarged view of point D;

[0016] Figure 7 This is another overall structural schematic diagram of this utility model;

[0017] Figure 8 yes Figure 7 Enlarged view of point E;

[0018] Figure 9 yes Figure 7 Enlarged view at point F;

[0019] Figure 10 It is a cross-sectional view taken along the second elastic adjustment buckle;

[0020] Figure 11 yes Figure 10 Enlarged view of point G;

[0021] Figure 12 It is a cross-sectional view taken along the third elastic adjustment buckle;

[0022] Figure 13 yes Figure 12 Enlarged view of point H; Detailed Implementation

[0023] Reference Figures 1-13 A pool cover, comprising:

[0024] The flexible cover layer 1 includes a middle portion 11 and an outer portion 12, the outer portion 12 being connected to the middle portion 11. The middle portion 11 is used to cover the pool opening 21 of the pool 2, and the outer portion 12 is used to surround the outer wall 22 of the pool 2. The outer portion 12 has a first outer edge 121.

[0025] The hook 3 is connected to the covering layer 1. The hook 3 is located on the outer part 12 and there is a gap between the hook 3 and the first outer edge 121. The hook 3 has a first rope opening 31.

[0026] The first tension rope 4 is inserted through the first rope opening 31, and there is a gap between the first tension rope 4 and the first outer edge 121. The first tension rope 4 is used to tighten the outer part 12 to the outer wall 22 of the pool 2.

[0027] With the above structure, the flexible covering layer 1 completely covers the pool opening 21 of the pool 2, effectively preventing dust, fallen leaves, insects, and other debris from entering the pool 2, thereby keeping the pool water clean and reducing cleaning frequency and maintenance costs. Furthermore, the outer portion 12 of the flexible covering layer 1 surrounds the outer wall 22 of the pool 2. The friction between the outer portion 12 and the outer wall 22 increases the stability of the pool cover and prevents it from shifting. Further, since the hanging lug 3 has a first rope opening 31, and a first tightening rope 4 is inserted through the first rope opening 31, the first tightening rope 4 is used to tighten the outer portion 12 to the outer wall 22 of the pool 2, further enhancing the wind resistance of the pool cover, making it less likely to be blown away or shifted even in windy weather. Furthermore, since there is a gap between the lug 3 and the first outer edge 121, and a gap between the first tightening rope 4 and the first outer edge 121, the first outer edge 121 and the first tightening rope 4 together surround and tighten the outer wall 22 of the pool 2, which further enhances the wind resistance of the pool cover. It is not easy to be blown away or moved even in windy weather. Moreover, even if the first tightening rope 4 moves away from the outer wall 22 of the pool 2, the first outer edge 121 can still surround the outer wall 22 of the pool 2, preventing the outer part 12 from leaving the outer wall 22 of the pool 2.

[0028] In this embodiment, a partition 5 is also included. The partition 5 divides the first rope opening 31 of the hanging ear 3 into a first through hole 311 and a second through hole 312. The first tightening rope 4 is passed through the first through hole 311, and the second through hole 312 is used to connect with a counterweight 3121 or a ground stake 3122. The partition 5 is formed by sewing a part of the hanging ear 3 to another part of the hanging ear 3 together. With the above structure, the first tightening rope 4 is passed through the first through hole 311, so that the first tightening rope 4 tightens the outer part 12 to the outer wall 22 of the pool 2, further enhancing the wind resistance of the pool cover, making it less likely to be blown up or moved even in windy weather; and the counterweight 3121 or ground stake 3122 can be connected through the second through hole 312 to further tighten the outer part 12 of the pool cover, so as to prevent the pool cover from being blown up or moved.

[0029] In this embodiment, a first adjusting buckle 6 is also included. A first tightening rope 4 is connected to the first adjusting buckle 6. The first tightening rope 4 passes through the first rope opening 31 and forms a first tightening space 41. The first tightening space 41 is used to tighten the outer portion 12 to the outer wall 22 of the pool 2. The first adjusting buckle 6 is used to adjust the size of the first tightening space 41. With the above structure, the first tightening space 41 formed by the first tightening rope 4 can be adjusted to match the outer wall 22 of the pool 2, so as to tighten the outer portion 12 to the outer wall 22 of the pool 2 and prevent the pool cover from being blown up or shifted.

[0030] In this embodiment, the first adjusting buckle 6 can switch between a locked state and an unlocked state. When the first adjusting buckle 6 is in the locked state, the first tightening space 41 can be contracted, but cannot be expanded. When the first adjusting buckle is in the unlocked state, the first tightening space 41 can be contracted or expanded. The first adjusting buckle 6 is a first ratchet adjusting buckle 66, which includes a first housing 61, a first stranded coil 62, and a first pawl 63. The first stranded coil 62 is connected to the first housing 61 and can rotate within the first housing 61. One end of the first tightening rope 4 is connected to the first housing 61, and the other end of the first tightening rope 4 is wound around the first stranded coil 62 and passes through the first housing 61. The first pawl 63 can move between a locked position and an unlocked position. When the first pawl 63 moves to the locked position, the first pawl 63 engages with the first ratchet 621, and the first adjusting buckle 6 is in the locked position. In the locked state, the first stranded coil 62 and the first ratchet 621 can rotate in a first direction to retract the first tightening space 41, and the first stranded coil 62 and the first ratchet 621 cannot rotate in a second direction to expand the first tightening space 41; the first stranded coil 62 extends from the first ratchet 621. When the first pawl 63 moves to the unlocked position, the first pawl 63 separates from the first ratchet 621, the first adjusting buckle 6 is in the unlocked state, the first stranded coil 62 and the first ratchet 621 can rotate in a first direction to retract the first tightening space 41, and the first stranded coil 62 and the first ratchet 621 can rotate in a second direction to expand the first tightening space 41. Specifically, the first ratchet adjusting buckle 66 also includes a first elastic reset device 64, which is connected to the first housing 61. The first elastic reset device 64 abuts against the first pawl 63 and pushes the first pawl 63 towards the first ratchet 621 to the locked position, so that the first pawl 63 engages with the first ratchet 621. Furthermore, the first ratchet 621 has a plurality of interconnected first one-way teeth 622. The first one-way teeth 622 include a first guide slope 6221 and a first stop surface 6222. The first guide slope 6221 and the first stop surface 6222 are connected. When the first pawl 63 engages with the first ratchet 621, the first ratchet 621 can rotate in a first direction through the first guide slope 6221, so that the first stranded coil 62 can rotate in the first direction to shrink the first tightening space 41. The first stop surface 6222 blocks the first ratchet 621 from rotating in a second direction, so that the first stranded coil 62 cannot rotate in the second direction to expand the first tightening space 41.Through the above structure, the setting of the first adjusting buckle 6 is effectively realized. When it is necessary to shrink the first tightening space 41, the first ratchet 621 can rotate in the first direction through the first guide inclined surface 6221, so that the user can move the first tightening rope 4 in the first direction of shrinkage. After shrinkage, the first stop surface 6222 blocks the first ratchet 621 from rotating in the second direction, so as to prevent the first tightening rope 4 from moving in the second direction to expand the first tightening space 41, thereby allowing the first tightening rope 4 to tighten the outer part 12 to the outer wall 22 of the pool 2. When it is necessary to expand the first tightening space 41, an external force greater than the elastic reset force provided by the first elastic reset device 64 can be applied to the first pawl 63 to separate the first pawl 63 from the first ratchet 621. The first strand 62 and the first ratchet 621 can rotate in the second direction, so that the first tightening rope 4 can move in the second direction to expand the first tightening space 41. Among them, the first elastic reset device 64 is the first reset spring. The first stranded coil includes a first limiting plate 623, a second limiting plate 624, and a first rotating shaft 625 connecting the first limiting plate and the second limiting plate. The first rotating shaft is rotatably connected to the first housing. A first limiting groove is provided between the first limiting plate and the second limiting plate. A first locking protrusion 6231 is provided on the inner surface of both the first limiting plate and the second limiting plate. The first locking protrusion locks the first tensioning rope body in the first limiting groove to prevent relative movement between the first tensioning rope body and the first limiting plate and the second limiting plate.

[0031] In this embodiment, the first outer edge 121 is provided with a second rope opening 1211 and also includes a second tightening rope 7. The second tightening rope 7 is inserted through the second rope opening 1211 and is used to tighten the first outer edge 121 to the outer wall 22 of the pool 2. With the above structure, the second tightening rope 7 provided on the first outer edge 121 and the first tightening rope 4 provided on the hanging lug 3 together surround and tighten the outer wall 22 of the pool 2, realizing double tightening of the outer part 12, further enhancing the wind resistance of the pool cover. Even in windy weather, it is not easy to be blown up or moved. Furthermore, even if the first tightening rope 4 moves away from the outer wall 22 of the pool 2, the second tightening rope 7 provided on the first outer edge 121 can still surround the outer wall 22 of the pool 2, preventing the outer part 12 from leaving the outer wall 22 of the pool 2.

[0032] In this embodiment, a second adjusting buckle 8 is also included. A second tightening rope 7 is connected to the second adjusting buckle 8. The second tightening rope 7 passes through the second rope opening 1211 and forms a second tightening space 71. The second tightening space 71 is used to tighten the first outer edge 121 to the outer wall 22 of the pool 2. The second adjusting buckle 8 is used to adjust the size of the second tightening space 71. With the above structure, the second tightening space 71 formed by the second tightening rope 7 can be adjusted to match the outer wall 22 of the pool 2, so as to tighten the outer part 12 to the outer wall 22 of the pool 2 and prevent the pool cover from being blown up or shifted.

[0033] In this embodiment, the second adjusting buckle 8 is a second ratchet adjusting buckle 86. The second ratchet adjusting buckle 86 includes a second housing 81, a second stranded coil 82, and a second pawl 83. The second stranded coil 82 is connected to the second housing 81 and can rotate within the second housing 81. One end of the second tensioning rope 7 is connected to the second housing 81, and the other end of the second tensioning rope 7 is wound around the second stranded coil 82 and passes through the second housing 81. The second stranded coil 82 extends out of the second ratchet 821. The second pawl 83 can move between a locked position and an unlocked position. When the second pawl 83 moves to the locked position, the second pawl 83 engages with the second ratchet 821. When the second adjustment buckle 8 is in the locked state, the second stranded coil 82 and the second ratchet 821 can rotate in a third direction to retract the second tightening space 71, and the second stranded coil 82 and the second ratchet 821 cannot rotate in a fourth direction to expand the second tightening space 71. The third direction is opposite to the fourth direction. When the second pawl 83 moves to the unlocked position, the second pawl 83 separates from the second ratchet 821, the second adjustment buckle 8 is in the unlocked state, the second stranded coil 82 and the second ratchet 821 can rotate in a third direction to retract the second tightening space 71, and the second stranded coil 82 and the second ratchet 821 can rotate in a fourth direction to expand the second tightening space 71. The second ratchet adjustment buckle 86 also includes a second elastic reset device 84, which is connected to the second housing 81. The second elastic reset device 84 abuts against the second pawl 83 and pushes the second pawl 83 toward the second ratchet 821 to the locked position, so that the second pawl 83 and the second ratchet 821 engage. Specifically, the second ratchet 821 has a plurality of interconnected second one-way teeth 822. The second one-way teeth 822 include a second guide slope 8221 and a second stop surface 8222. The second guide slope 8221 and the second stop surface 8222 are connected. When the second pawl 83 engages with the second ratchet 821, the second ratchet 821 can rotate in the third direction through the second guide slope 8221, so that the second stranded coil 82 can rotate in the third direction to shrink the second tightening space 71. The second stop surface 8222 blocks the second ratchet 821 from rotating in the fourth direction, so that the second stranded coil 82 cannot rotate in the fourth direction to expand the second tightening space 71. Through the above structure, the setting of the second adjustment buckle 8 is effectively realized. When it is necessary to shrink the second tightening space 71, the second ratchet 821 can rotate in the third direction through the second guide inclined surface 8221, so that the user can move the second tightening rope 7 in the third direction of shrinkage. After shrinkage, the second stop surface 8222 blocks the second ratchet 821 from rotating in the fourth direction, so as to prevent the second tightening rope 7 from moving in the fourth direction to expand the second tightening space 71, thereby allowing the second tightening rope 7 to tighten the outer part 12 to the outer wall 22 of the pool 2.When it is necessary to expand the second tensioning space 71, an external force greater than the elastic reset force provided by the second elastic reset device 84 can be applied to the second pawl 83 to separate the second pawl 83 from the second ratchet 821. The second stranded coil 82 and the second ratchet 821 can then rotate in a fourth direction, allowing the second tensioning rope 7 to move in a fourth direction to expand the second tensioning space 71. The second elastic reset device 84 is a second reset spring. The second stranded coil includes a third limiting plate 823, a fourth limiting plate 824, and a second rotating shaft 825 connecting the third and fourth limiting plates. The second rotating shaft is rotatably connected to the second housing. A second limiting groove is provided between the third and fourth limiting plates. A second locking protrusion 8231 is provided on the inner surface of both the third and fourth limiting plates. The second locking protrusion locks the second tensioning rope within the second limiting groove, preventing relative movement between the second tensioning rope and the third and fourth limiting plates.

[0034] In other embodiments, the second adjusting buckle 8 is a second elastic adjusting buckle 85. The second elastic adjusting buckle 85 includes a first adjusting housing 851 and a first elastic post 852. The first elastic post 852 is connected to the first adjusting housing 851 and can slide within the first adjusting housing 851 to a locked or unlocked position. The first adjusting housing 851 has a first opening 8511, and the first elastic post 852 has a first spring 8521 and a second opening 8522. The second tightening rope 7 passes through the first opening 8511 and the second opening 8522 in sequence. The first spring 8521 holds the first elastic post 852... When pushed to the locking position, the first opening 8511 and the second opening 8522 are offset from each other, so that the inner walls of the first opening 8511 and the second opening 8522 squeeze and lock the second tensioning rope 7. The second tensioning rope 7 cannot move within the first opening 8511 and the second opening 8522, so as to fix the size of the second tensioning space 71. When the first elastic post 852 is pushed to the unlocking position under the action of external force, the first opening 8511 and the second opening 8522 are aligned with each other, and the second tensioning rope 7 can move within the first opening 8511 and the second opening 8522 to adjust the size of the second tensioning space 71. With the above structure, when it is necessary to adjust the second tightening space 71, the first elastic post 852 can be pushed to the unlock position so that the first opening 8511 and the second opening 8522 are aligned with each other. The second tightening rope 7 can move within the first opening 8511 and the second opening 8522 to adjust the size of the second tightening space 71. After adjustment, the first spring 8521 pushes the first elastic post 852 to the locking position, and the first opening 8511 and the second opening 8522 are offset from each other so that the inner wall of the first opening 8511 and the inner wall of the second opening 8522 squeeze and lock the second tightening rope 7. The second tightening rope 7 cannot move within the first opening 8511 and the second opening 8522 to fix the size of the second tightening space 71.

[0035] In this embodiment, a third adjusting buckle 9 is also included. The third adjusting buckle 9 is connected to the second tightening rope 7 and is used to adjust the size of the second tightening space 71. The third adjusting buckle 9 and the second adjusting buckle 8 are different types of adjusting buckles. Specifically, the third adjusting buckle 9 is a third elastic adjusting buckle 96, which includes a second adjusting housing 91 and a second elastic post 92. The second elastic post 92 is connected to the second adjusting housing 91 and can slide within the second adjusting housing 91 to a locked or unlocked position. The second adjusting housing 91 has a third opening 911, and the second elastic post 92 has a second spring 921 and a fourth opening 922. The second tightening rope 7 passes through the third opening 911 and the fourth opening 922 in sequence. The second spring 921 moves the second elastic post 92 to the locked position. The third opening 911 and the fourth opening 922 are offset from each other, so that the inner walls of the third opening 911 and the fourth opening 922 squeeze and lock the second tensioning rope 7. The second tensioning rope 7 cannot move within the third opening 911 and the fourth opening 922, so as to fix the size of the second tensioning space 71. When the second elastic column 92 is pushed to the unlocked position under the action of external force, the third opening 911 and the fourth opening 922 are aligned with each other, and the second tensioning rope 7 can move within the third opening 911 and the fourth opening 922 to adjust the size of the second tensioning space 71. With the above structure, when it is necessary to adjust the second tightening space 71, the second elastic post 92 can be pushed to the unlock position so that the third opening 911 and the fourth opening 922 are aligned with each other. The second tightening rope 7 can move within the third opening 911 and the fourth opening 922 to adjust the size of the second tightening space 71. After adjustment, the second spring 921 pushes the second elastic post 92 to the locking position, and the third opening 911 and the fourth opening 922 are offset from each other so that the inner wall of the third opening 911 and the inner wall of the fourth opening 922 squeeze and lock the second tightening rope 7. The second tightening rope 7 cannot move within the third opening 911 and the fourth opening 922 to fix the size of the second tightening space 71.

[0036] In this embodiment, there are multiple third adjustment buckles 9, which are arranged sequentially around the second tightening rope 7. With the above structure, multiple third adjustment buckles 9 are arranged sequentially around the second tightening rope 7, which can tighten the second tightening rope 7 from various positions, so as to tighten the first outer edge 121 of the outer part 12 to the outer wall 22 of the pool 2 more quickly and evenly.

[0037] In this embodiment, the width of the second through hole 312 is greater than the width of the first through hole 311. The width of the first adjusting buckle 6 is greater than the width of the first through hole 311. Specifically, the widths of the first through hole 311 and the second through hole 312 range from 0.1mm to 20cm, the width of the covering layer 1 ranges from 6 feet to 36 feet, the thickness of the covering layer 1 ranges from 0.1mm to 10mm, and the width of the separating portion 5 ranges from 1mm to 5mm. With this structure, the dimensions are reasonably set, allowing the pool cover to adapt to pools 2 of different sizes; and because the width of the first adjusting buckle 6 is greater than the width of the first through hole 311, it prevents the first adjusting buckle 6 from passing through the first through hole 311, thereby preventing the position of the first adjusting buckle from changing. Specifically, there are multiple hanging ears 3, which are arranged sequentially around the outer portion 12.

[0038] In this embodiment, the cover layer 1 is formed by stitching together multiple cover units. The cover layer 1 is either an Oxford cloth cover layer 1 or a PE woven fabric cover layer, and the first tensioning rope 4 is a flexible first tensioning rope 4. Through the above structure, the cover layer 1 and the first tensioning rope 4 are effectively configured. Furthermore, since the cover layer 1 is formed by stitching together multiple cover units 111, it can be assembled into pool covers of various sizes, improving material utilization and reducing production costs. Moreover, the Oxford cloth cover layer 1 or the PE woven fabric cover layer has a long service life and good dustproof performance, greatly improving the user experience.

[0039] The above description provides one or more embodiments in conjunction with specific content, but it is not intended that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A swimming pool cover, characterized in that, include: A flexible covering layer (1) comprising a middle portion (11) and an outer portion (12), the outer portion (12) being connected to the middle portion (11), the middle portion (11) covering the pool opening (21) of the pool (2), and the outer portion (12) surrounding the outer side wall (22) of the pool (2); the outer portion (12) having a first outer edge (121); The hook (3) is connected to the covering layer (1), the hook (3) is provided on the outer part (12), and there is a gap between the hook (3) and the first outer edge (121); the hook (3) has a first rope opening (31); The first tightening rope (4) is inserted through the first rope opening (31) and there is a gap between the first tightening rope (4) and the first outer edge (121). The first tightening rope (4) is used to tighten the outer part (12) to the outer wall (22) of the pool (2).

2. A swimming pool cover according to claim 1, characterized in that, It also includes a dividing part (5), which divides the first rope opening (31) of the hanging ear (3) into a first through hole (311) and a second through hole (312). The first tightening rope (4) is inserted through the first through hole (311), and the second through hole (312) is used to connect with a counterweight (3121) or a ground nail (3122).

3. A swimming pool cover according to claim 1, characterized in that, It also includes a first adjusting buckle (6), the first tightening rope (4) is connected to the first adjusting buckle (6), the first tightening rope (4) is inserted through the first rope opening (31) and surrounds to form a first tightening space (41), the first tightening space (41) is used to tighten the outer part (12) to the outer wall (22) of the pool (2), and the first adjusting buckle (6) is used to adjust the size of the first tightening space (41).

4. A swimming pool cover according to claim 3, characterized in that, The first adjustment buckle (6) can switch between a locked state and an unlocked state. When the first adjustment buckle (6) is in the locked state, the first tightening space (41) can be contracted, but the first tightening space (41) cannot be expanded. When the first adjustment buckle is in the unlocked state, the first tightening space (41) can be contracted or expanded.

5. A pool cover according to claim 4, characterized in that, The first adjusting buckle (6) is a first ratchet adjusting buckle (66), which includes a first housing (61), a first stranded coil (62), and a first pawl (63). The first stranded coil (62) is connected to the first housing (61) and can rotate within the first housing (61). One end of the first tightening rope (4) is connected to the first housing (61), and the other end of the first tightening rope (4) is wound around the first stranded coil (62) and passes through the first housing (61). The first stranded coil (62) extends out of the first ratchet (621), and the first pawl (63) can move between the locked position and the unlocked position. When the first pawl (621) is locked, the ratchet (63) can move between the locked position and the unlocked position. 3) When moved to the locked position, the first pawl (63) engages with the first ratchet (621), the first adjusting buckle (6) is in the locked state, the first stranded coil (62) and the first ratchet (621) can rotate in a first direction to shrink the first tightening space (41), and the first stranded coil (62) and the first ratchet (621) cannot rotate in a second direction to expand the first tightening space (41), the first direction and the second direction are opposite; when the first pawl (63) moves to the unlocked position, the first pawl (63) separates from the first ratchet (621), the first adjusting buckle (6) is in the unlocked state, the first stranded coil (62) and the first ratchet (621) The first tightening space (41) can be rotated in a first direction to shrink, and the first stranded coil (62) and the first ratchet (621) can be rotated in a second direction to expand the first tightening space (41); the first ratchet adjusting buckle (66) also includes a first elastic reset device (64), the first elastic reset device (64) is connected to the first housing (61), the first elastic reset device (64) abuts against the first pawl (63), and the first elastic reset device (64) pushes the first pawl (63) toward the first ratchet (621) to the locking position, so that the first pawl (63) and the first ratchet (621) are engaged; the first ratchet (621) has a plurality of interconnected The first one-way tooth (622) includes a first guide slope (6221) and a first stop surface (6222). The first guide slope (6221) is connected to the first stop surface (6222). When the first pawl (63) engages with the first ratchet (621), the first ratchet (621) can rotate in a first direction through the first guide slope (6221) so that the first stranded coil (62) can rotate in a first direction to shrink the first tightening space (41). The first stop surface (6222) blocks the first ratchet (621) from rotating in a second direction so that the first stranded coil (62) cannot rotate in a second direction to expand the first tightening space (41).

6. A swimming pool cover according to claim 1, characterized in that, The first outer edge (121) is provided with a second rope opening (1211) and also includes a second tightening rope body (7). The second tightening rope body (7) is inserted through the second rope opening (1211) and is used to tighten the first outer edge (121) to the outer wall (22) of the pool (2).

7. A swimming pool cover according to claim 6, characterized in that, It also includes a second adjusting buckle (8), the second tightening rope (7) is connected to the second adjusting buckle (8), the second tightening rope (7) is passed through the second rope opening (1211) and surrounds to form a second tightening space (71), the second tightening space (71) is used to tighten the first outer edge (121) to the outer wall (22) of the pool (2), and the second adjusting buckle (8) is used to adjust the size of the second tightening space (71).

8. A swimming pool cover according to claim 7, characterized in that, The second adjusting buckle (8) is a second ratchet adjusting buckle (86), which includes a second housing (81), a second stranded coil (82), and a second pawl (83). The second stranded coil (82) is connected to the second housing (81) and can rotate within the second housing (81). One end of the second tightening rope (7) is connected to the second housing (81), and the other end of the second tightening rope (7) is wound around the second stranded coil (82) and passes through the second housing (81). The second stranded coil (82) extends out of the second ratchet (821), and the second pawl (83) can move between the locked position and the unlocked position. When the second pawl (821) is locked, the second ratchet (83) can move between the locked position and the unlocked position. 3) When moved to the locked position, the second pawl (83) engages with the second ratchet (821), the second adjusting buckle (8) is in the locked state, the second stranded coil (82) and the second ratchet (821) can rotate in a third direction to shrink the second tightening space (71), and the second stranded coil (82) and the second ratchet (821) cannot rotate in a fourth direction to expand the second tightening space (71), the third direction being opposite to the fourth direction; when the second pawl (83) moves to the unlocked position, the second pawl (83) separates from the second ratchet (821), the second adjusting buckle (8) is in the unlocked state, the second stranded coil (82) and the second ratchet (821) The second tightening space (71) can be rotated in a third direction to shrink, and the second stranded coil (82) and the second ratchet (821) can be rotated in a fourth direction to expand the second tightening space (71); the second ratchet adjusting buckle (86) also includes a second elastic reset device (84), which is connected to the second housing (81). The second elastic reset device (84) abuts against the second pawl (83), and pushes the second pawl (83) toward the second ratchet (821) to the locking position so that the second pawl (83) engages with the second ratchet (821); the second ratchet (821) has several interconnected... The second one-way tooth (822) includes a second guide slope (8221) and a second stop surface (8222). The second guide slope (8221) and the second stop surface (8222) are connected. When the second pawl (83) is engaged with the second ratchet (821), the second ratchet (821) can rotate in the third direction through the second guide slope (8221) so that the second stranded coil (82) can rotate in the third direction to shrink the second tightening space (71). The second stop surface (8222) blocks the second ratchet (821) from rotating in the fourth direction so that the second stranded coil (82) cannot rotate in the fourth direction to expand the second tightening space (71).

9. A swimming pool cover according to claim 7, characterized in that, The second adjusting buckle (8) is a second elastic adjusting buckle (85). The second elastic adjusting buckle (85) includes a first adjusting housing (851) and a first elastic post (852). The first elastic post (852) is connected to the first adjusting housing (851), and the first elastic post (852) can slide within the first adjusting housing (851) to a locked position or an unlocked position. The first adjusting housing (851) has a first opening (8511), and the first elastic post (852) has a first spring (8521) and a second opening (8522). The second tightening rope (7) passes through the first opening (8511) and the second opening (8522) in sequence. The first spring (8521) tightens the first elastic post (852). Position pushing, the first opening (8511) and the second opening (8522) are offset from each other, so that the inner wall of the first opening (8511) and the inner wall of the second opening (8522) squeeze and lock the second tightening rope (7), and the second tightening rope (7) cannot move within the first opening (8511) and the second opening (8522) to fix the size of the second tightening space (71); when the first elastic column (852) is pushed to the unlocking position under the action of external force, the first opening (8511) and the second opening (8522) are aligned with each other, and the second tightening rope (7) can move within the first opening (8511) and the second opening (8522) to adjust the size of the second tightening space (71).

10. A swimming pool cover according to claim 7, characterized in that, It also includes a third adjusting buckle (9), which is connected to the second tightening rope (7). The third adjusting buckle (9) is used to adjust the size of the second tightening space (71). The third adjusting buckle (9) and the second adjusting buckle (8) are different types of adjusting buckles. The third adjusting buckle (9) is a third elastic adjusting buckle (96). The third elastic adjusting buckle (96) includes a second adjusting housing (91) and a second elastic post (92). The second elastic post (92) is connected to the second adjusting housing (91), and the second elastic post (92) can slide to a locked position or an unlocked position within the second adjusting housing (91). The second adjusting housing (91) has a third opening (911). The second elastic post (92) has a second spring (921) and a fourth opening (922). The second tightening rope (7) passes through the third opening (911) and the fourth opening (922) in sequence. Two springs (921) push the second elastic post (92) to the locking position. The third opening (911) and the fourth opening (922) are offset from each other so that the inner wall of the third opening (911) and the inner wall of the fourth opening (922) squeeze and lock the second tensioning rope (7). The second tensioning rope (7) cannot move within the third opening (911) and the fourth opening (922) to fix the size of the second tensioning space (71). When the second elastic post (92) is pushed to the unlocking position under the action of external force, the third opening (911) and the fourth opening (922) are aligned with each other. The second tensioning rope (7) can move within the third opening (911) and the fourth opening (922) to adjust the size of the second tensioning space (71). There are multiple third adjustment buckles (9), and multiple third adjustment buckles (9) are arranged in sequence around the second tensioning rope (7).

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