CN113653377A - Winter heat preservation device of outdoor swimming pool easy and simple to handle - Google Patents

Winter heat preservation device of outdoor swimming pool easy and simple to handle Download PDF

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Publication number
CN113653377A
CN113653377A CN202110988323.6A CN202110988323A CN113653377A CN 113653377 A CN113653377 A CN 113653377A CN 202110988323 A CN202110988323 A CN 202110988323A CN 113653377 A CN113653377 A CN 113653377A
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CN
China
Prior art keywords
heat preservation
loading platform
support frame
winter
swimming pool
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110988323.6A
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Chinese (zh)
Inventor
余泽龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Jule Health Technology Co ltd
Original Assignee
Guangdong Jule Health Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Jule Health Technology Co ltd filed Critical Guangdong Jule Health Technology Co ltd
Priority to CN202110988323.6A priority Critical patent/CN113653377A/en
Publication of CN113653377A publication Critical patent/CN113653377A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00Swimming or splash baths or pools
    • E04H4/06Safety devices; Coverings for baths
    • E04H4/08Coverings consisting of rigid elements, e.g. coverings composed of separate or connected elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00Swimming or splash baths or pools
    • E04H4/06Safety devices; Coverings for baths
    • E04H4/08Coverings consisting of rigid elements, e.g. coverings composed of separate or connected elements
    • E04H4/084Coverings consisting of rigid elements, e.g. coverings composed of separate or connected elements with lifting mechanism

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

The invention discloses an outdoor swimming pool winter heat preservation device which is simple and convenient to operate and aims to solve the technical problem that the water of the conventional outdoor swimming pool cannot be kept clean and constant in temperature. The swimming pool heat preservation device comprises a loading platform, a power supply facility arranged on the rear side of the loading platform, a heat preservation cover plate arranged above the loading platform, and a water pool arranged on the front side of the loading platform. This swimming pool heat preservation device adopts hydro-cylinder and chain cooperation work to form vertical lift mechanism, and the utilization folds the support, the tertiary activity package assembly of driven support and initiative support, vertical expansion that can be stable and folding, conveniently drive the heat preservation apron vertical lift of top, close or open the pond structure top surface of below, on the one hand under the condition that does not use the pond, it is difficult to clear up to prevent that the dust fallen leaves from falling into the pond, on the other hand, when temperature was low excessively in winter, the heat preservation fabric material that utilizes the heat preservation apron keeps apart pond water and external environment, keep the constancy of temperature of pond water.

Description

Winter heat preservation device of outdoor swimming pool easy and simple to handle
Technical Field
The invention belongs to the field of swimming pool auxiliary equipment, and particularly relates to an outdoor swimming pool winter heat preservation device which is simple and convenient to operate.
Background
With the improvement of the living standard of people, more people begin to pay attention to the quality of life, and in the courtyards of domestic villas, a plurality of owners can select to decorate an open-air swimming pool for the combined use and landscape requirements, so that the living space is enriched.
The open-air swimming pool needs to be managed frequently, because the garbage such as leaves, branches, weeds and the like falls, firstly, the water of the swimming pool should be constant temperature, especially in winter, the swimming pool exposed to the air can be influenced by the weather, the water of the swimming pool is often frozen to be cold, the owner can not tolerate the low temperature when swimming, the use frequency of the swimming pool is reduced, and meanwhile, the water of the swimming pool is frozen to be expanded, and the wall of the swimming pool can be damaged, so that the invention needs to design a heat preservation device of the swimming pool to isolate the water of the swimming pool from the external environment.
Therefore, to the unable condition of using of above-mentioned open-air swimming pool winter pond water temperature, develop a swimming pool heat preservation isolating device, utilize the heat preservation apron structure and drive elevating system cooperation work to drive the heat preservation apron vertical lift and shield the upper portion opening of swimming pool.
Disclosure of Invention
(1) Technical problem to be solved
Aiming at the defects of the prior art, the invention aims to provide an outdoor swimming pool winter heat preservation device which is simple and convenient to operate and aims to solve the technical problem that the water in the existing outdoor swimming pool cannot be kept clean and constant in temperature.
(2) Technical scheme
In order to solve the technical problems, the invention provides an outdoor swimming pool winter heat preservation device which is simple and convenient to operate, and comprises a loading platform, a power supply facility arranged at the rear side of the loading platform, a heat preservation cover plate arranged above the loading platform, and a water tank arranged at the front side of the loading platform, wherein a fixed support frame is fixedly arranged at the upper side of the front end of the loading platform, a folding support frame is vertically and fixedly arranged between the inner sides of the fixed support frames, a driven support frame is vertically and movably connected with the inner side of the folding support frame, a driving support frame is movably connected with the inner side of the driven support frame, an oil pump and a reversing oil valve are fixedly arranged at the upper end of the loading platform, the oil pump and the reversing oil valve are electrically connected with the power supply facility, an oil cylinder is arranged at the upper end of the oil pump, a chain wheel is arranged at the top end of the oil cylinder, and a chain is arranged at the outer side of the chain wheel, the chain bottom fixed connection in the sprocket outer end, chain top fixed connection in the drive support lower extreme, hydro-cylinder outside fixed mounting has the stroke inductor, the chain install in the stroke inductor is inboard, the heat preservation apron set up in the pond top, the adhesive tape is installed to the pond upper end.
When the winter heat preservation device for the outdoor swimming pool, which is simple and convenient to operate, is used, a user controls the oil pump to inject hydraulic oil into the oil cylinder, the driving chain wheel rotates, the chain is enabled to continuously drive the driving support and the driven support to sequentially lift upwards or descend, the heat preservation cover plate is driven to vertically move, and a closed or opened space is formed between the heat preservation cover plate and the top surface of the water pool.
Preferably, the lower end of the heat-insulating cover plate is fixedly provided with a rubber pad, the rubber pad is arranged on the inner side of the rubber strip, the rear end of the heat-insulating cover plate is fixedly provided with a buckle head, and the top end of the driving support is connected with the inner side of the buckle head in a buckle mode. The connecting mode of the buckle head and the driving support facilitates the installation and the disassembly of the heat-insulating cover plate and the driving support, and is favorable for maintaining and replacing materials of the heat-insulating cover plate.
Preferably, fold the support outside and install a safety cover, No. two safety covers are installed to a safety cover inboard, No. three safety covers are installed to No. two safety cover inboards, No. two safety covers set up in the driven support outside, No. three safety covers set up in the initiative support outside, initiative support top end fixed connection in No. three safety cover upper end inboards. Electronic components in the folding support, the driven support and the driving support are protected by the first protective cover, the second protective cover and the third protective cover, and wind and rain erosion is prevented.
Preferably, the rear side of the lower end of the first protective cover is provided with a butt joint, the power supply facility is arranged on the inner side of the butt joint, and the rear side of the second protective cover is provided with a transparent glass observation window. The transparent glass observation window is used for conveniently observing the lifting mechanism and the limiting mechanism in the closed bracket and checking the working state.
Preferably, an electric push rod is installed on the inner side of the fixed support frame, the electric push rod is electrically connected with the power supply facility, a linkage rod is movably connected to the upper end of the electric push rod, and the electric push rod and the linkage rod are arranged on the left side of the oil cylinder. The electric push rod is supplied by the power supply of the power supply facility, so that the linkage rod vertically stretches.
Preferably, the left end of the oil cylinder is horizontally and fixedly connected with a stable clamping hook, and the linkage rod is arranged on the inner side of the stable clamping hook. The annular structure of the stable clamping hook plays a limiting role on the outer side of the linkage rod, stabilizes the moving direction of the linkage rod and avoids displacement deviation.
Preferably, the top end of the folding bracket is horizontally and transversely provided with a movable hinge, and an anti-falling rod frame is movably connected between the movable hinges. The anti-falling rod frame is axially overturned along the movable hinge under the continuous jacking action of the top end of the linkage rod, and is changed from a vertical state into a state of forming a certain intersection angle with a vertical plane.
Preferably, driven support with the inboard horizontal equidistance of initiative support installs limit beam, prevent weighing down the rack swing joint in limit beam downside. Prevent weighing down that pole frame upset GG forms the locking between the spacing crossbeam after for the tilt state, after preventing the device outage, elevating system descends naturally and produces the incident that falls.
(3) Advantageous effects
Compared with the prior art, the invention has the beneficial effects that: the winter heat preservation device for the outdoor swimming pool, which is simple and convenient to operate, adopts the oil cylinder and the chain to work in a matching way to form the vertical lifting mechanism, and utilizes the three-stage movable assembly structure of the folding bracket, the driven bracket and the driving bracket to be capable of being stably and vertically unfolded and folded under the condition of being connected with the transmission device of the lifting mechanism, so that the heat preservation cover plate above the device is conveniently driven to vertically lift, the top surface of the structure of the water pool below the device is conveniently closed or opened, on one hand, under the condition that the water pool is not used, dust falling leaves are prevented from falling into the water pool and being difficult to clean, on the other hand, when the temperature is too low in winter, the heat preservation fabric material of the heat preservation cover plate is utilized to isolate the water in the water pool from the external environment, and the temperature of the water in the pool is kept constant.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an assembly structure of an embodiment of a winter heat preservation apparatus for an outdoor swimming pool according to the present invention;
FIG. 2 is a schematic structural view of an elevating mechanism of an embodiment of the winter heat preservation device for outdoor swimming pools, which is easy and convenient to operate
FIG. 3 is a schematic view of a closed structure of an insulation cover plate of an embodiment of the winter insulation apparatus for outdoor swimming pools, which is easy and convenient to operate;
fig. 4 is a schematic view of an opening structure of a heat-insulating cover plate of an embodiment of the winter heat-insulating device for the outdoor swimming pool, which is easy and convenient to operate.
The labels in the figures are: 1. a loading table; 2. fixing a support frame; 3. folding the bracket; 4. a driven bracket; 5. an active support; 6. a power supply facility; 7. an oil pump; 8. a reversing oil valve; 9. an oil cylinder; 10. a sprocket; 11. a chain; 12. a stroke sensor; 13. a heat-insulating cover plate; 14. a pool; 15. an adhesive tape; 16. a rubber pad; 17. a buckle head; 18. a first protective cover; 19. a second protective cover; 20. a third protective cover; 21. a butt joint port; 22. a transparent glass viewing window; 23. an electric push rod; 24. a linkage rod; 25. a stable hook; 26. a living hinge; 27. an anti-falling rod frame; 28. and limiting the cross beam.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easily understood and obvious, the technical solutions in the embodiments of the present invention are clearly and completely described below to further illustrate the invention, and obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments.
Example 1
The specific embodiment is an outdoor swimming pool winter heat preservation device which is simple and convenient to operate, the assembly structure schematic diagram of the device is shown in figure 1, the lifting mechanism structure schematic diagram is shown in figure 2, the heat preservation cover plate 13 is in a closed state structural schematic diagram is shown in figure 3, the heat preservation cover plate 13 is in an open state structural schematic diagram is shown in figure 4, the swimming pool heat preservation device comprises a loading platform 1, a power supply facility 6 arranged at the rear side of the loading platform 1, a heat preservation cover plate 13 arranged above the loading platform 1, a water tank 14 arranged at the front side of the loading platform 1, a fixed support frame 2 fixedly arranged at the upper side of the front end of the loading platform 1, a folding support 3 vertically and fixedly arranged between the inner sides of the fixed support frames 2, a driven support 4 vertically and movably connected with the inner side of the folding support 3, a driving support 5 movably connected with the inner side of the driven support 4, an oil pump 7 and a reversing oil valve 8 fixedly arranged at the upper end of the loading platform 1, oil pump 7 and switching-over fuel tap 8 all are connected with power supply facility 6 automatically controlled, hydro-cylinder 9 is installed to oil pump 7 upper end, sprocket 10 is installed on hydro-cylinder 9 top, chain 11 is installed in the sprocket 10 outside, 11 bottom fixed connection of chain are in the 10 outer ends of sprocket, 11 top fixed connection of chain are in 5 lower extremes of drive support, 9 outside fixed mounting of hydro-cylinder has stroke inductor 12, chain 11 is installed in stroke inductor 12 inboardly, heat preservation apron 13 sets up in 14 tops in the pond, adhesive tape 15 is installed to 14 upper ends in pond.
For the specific embodiment, the electric push rod 23 and the linkage rod 24 are piston structures, and after the power supply facility 6 provides power, the vertical extension pushes the anti-falling rod frame 27 to axially turn along the movable hinge 26, form a certain included angle with a vertical plane, extend into the corresponding limiting cross beam 28, and form a clamping locking structure with the limiting cross beam 28, so that safety accidents caused by natural falling of the driving support 5 and the driven support 4 are prevented.
Wherein, the lower extreme fixed mounting of heat preservation apron 13 has the cushion 16, and the cushion 16 sets up in adhesive tape 15 inboard, and heat preservation apron 13 rear end fixed mounting has buckle head 17, and 5 top buckles of initiative support are connected in buckle head 17 inboardly. The connection mode of the buckle head 17 and the driving support 5 is convenient for the installation and the disassembly of the heat-insulating cover plate 13 and the driving support 5, and is favorable for the maintenance and the material replacement of the heat-insulating cover plate 13.
Meanwhile, a first protective cover 18 is installed on the outer side of the folding support 3, a second protective cover 19 is installed on the inner side of the first protective cover 18, a third protective cover 20 is installed on the inner side of the second protective cover 19, the second protective cover 19 is arranged on the outer side of the driven support 4, the third protective cover 20 is arranged on the outer side of the driving support 5, the top end of the driving support 5 is fixedly connected to the inner side of the upper end of the third protective cover 20, a butt joint 21 is arranged on the rear side of the lower end of the first protective cover 18, a power supply facility 6 is arranged on the inner side of the butt joint 21, and a transparent glass observation window 22 is installed on the rear side of the second protective cover 19. The first protective cover 18, the second protective cover 19 and the third protective cover 20 are used for protecting electronic components in the closed bracket 3, the driven bracket 4 and the driving bracket 5 to prevent wind and rain erosion, the transparent glass observation window 22 is used for conveniently observing the lifting mechanism and the limiting mechanism in the closed bracket 3, and the working state is checked
In addition, an electric push rod 23 is installed on the inner side of the fixed support frame 2, the electric push rod 23 is electrically connected with the power supply facility 6, a linkage rod 24 is movably connected to the upper end of the electric push rod 23, the electric push rod 23 and the linkage rod 24 are arranged on the left side of the oil cylinder 9, a stable clamping hook 25 is horizontally and fixedly connected to the left end of the oil cylinder 9, the linkage rod 24 is arranged on the inner side of the stable clamping hook 25, a movable hinge 26 is horizontally and transversely installed at the top end of the folding support 3, an anti-falling rod frame 27 is movably connected between the movable hinges 26, limiting cross beams 28 are installed on the inner sides of the driven support 4 and the driving support 5 at equal horizontal intervals, and the anti-falling rod frame 27 is movably connected to the lower side of the limiting cross beam 28. Electric putter 23 receives the power supply of power supply facility 6, make the gangbar 24 vertical flexible, the loop configuration who stabilizes pothook 25 plays limiting displacement to the outside of gangbar 24, stabilize the moving direction of gangbar 24, avoid producing displacement deviation, prevent weighing down that the pole frame 27 receives the continuous jacking effect on the gangbar 24 top and overturn along activity hinge 25 axial, become from vertical state and produce certain angle of intersection on the vertical plane, prevent weighing down that pole frame 27 upset GG forms the locking between slope state back and the spacing crossbeam 28, after the protection device outage, elevating system descends naturally and produces the incident of falling.
When the winter heat preservation device of the outdoor swimming pool, which is simple and convenient to operate, of the technical scheme is used, the power supply facility 6 provides a working power supply for the oil pump 7, the reversing oil valve 8, the stroke sensor 12 and the electric push rod 23, a user controls the oil pump 7 to inject hydraulic oil into the oil cylinder 9, the chain wheel 10 is driven to rotate, the chain 11 is driven to continuously transmit, because the two ends of the chain 11 are respectively connected with the chain wheel 10 and the driving support 5, the driving support 5 is driven to vertically lift up, the driven support 4 is synchronously lifted upwards under the action of the structural buckle between the driving support 5 and the driven support 4, the heat preservation cover plate 13 is driven to separate from the water tank 14 to lift up, the top surface of the water tank 14 is opened, the stroke sensor 12 is connected with the chain 11, the chain is controlled to automatically stop after being transmitted to a certain distance, the electric push rod 23 controls the linkage rod 24 to lift upwards, so that the anti-falling rod frame 27 is axially overturned along the movable hinge 26, form spacingly with limit beam 28, prevent that power supply facility 6 from cutting off the power supply after, driven support 4 and driving support 5 nature whereabouts cause the incident, when the pond no longer uses, control earlier and prevent weighing down reverse upset of rod frame 27 and remove the locking with limit beam 28, then control switching-over fuel tap 8 work conversion, make oil pump 7 drive chain 11 pack up along sprocket 10, make driven support 4 and driving support 5 fold in proper order and get into and fold up support 3, drive heat preservation apron 13 and descend gradually, cover 14 top surfaces of pond, through the close effect of adhesive tape 15 with cushion 16, strengthen the leakproofness of pond 14, it is better to make the heat preservation effect.
Having thus described the principal technical features and basic principles of the invention, and the advantages associated therewith, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description is described in terms of various embodiments, not every embodiment includes only a single embodiment, and such descriptions are provided for clarity only, and those skilled in the art will recognize that the embodiments described herein can be combined as a whole to form other embodiments as would be understood by those skilled in the art.

Claims (8)

1. An outdoor swimming pool winter heat preservation device easy and convenient to operate comprises a loading platform (1), a power supply facility (6) arranged on the rear side of the loading platform (1), a heat preservation cover plate (13) arranged above the loading platform (1), and a water tank (14) arranged on the front side of the loading platform (1); the device is characterized in that a fixed support frame (2) is fixedly mounted on the upper side of the front end of the loading platform (1), a folding support frame (3) is fixedly mounted between the inner sides of the fixed support frame (2), a driven support frame (4) is movably connected to the inner side of the folding support frame (3), a driving support frame (5) is movably connected to the inner side of the driven support frame (4), an oil pump (7) and a reversing oil valve (8) are fixedly mounted on the upper end of the loading platform (1), the oil pump (7) and the reversing oil valve (8) are electrically connected with a power supply facility (6), an oil cylinder (9) is mounted at the upper end of the oil pump (7), a chain wheel (10) is mounted at the top end of the oil cylinder (9), a chain (11) is mounted at the outer side of the chain wheel (10), the bottom end of the chain (11) is fixedly connected to the outer end of the chain wheel (10), the top end of the chain (11) is fixedly connected to the lower end of the driving support frame (5), hydro-cylinder (9) outside fixed mounting has stroke inductor (12), chain (11) install in stroke inductor (12) are inboard, heat preservation apron (13) set up in pond (14) top, adhesive tape (15) are installed to pond (14) upper end.
2. An easy-to-handle winter thermal insulation device for outdoor swimming pools, as claimed in claim 1, wherein the lower end of the thermal insulation cover plate (13) is fixedly installed with a rubber pad (16), the rubber pad (16) is disposed inside the rubber strip (15), the rear end of the thermal insulation cover plate (13) is fixedly installed with a fastener head (17), and the top end of the driving bracket (5) is snap-connected inside the fastener head (17).
3. An easy-to-handle winter heat preservation device for outdoor swimming pools, as claimed in claim 1, wherein the outer side of the folding bracket (3) is provided with a protection cover (18), the inner side of the protection cover (18) is provided with a protection cover (19), the inner side of the protection cover (19) is provided with a protection cover (20), the protection cover (19) is arranged on the outer side of the driven bracket (4), the protection cover (20) is arranged on the outer side of the driving bracket (5), and the top end of the driving bracket (5) is fixedly connected to the inner side of the upper end of the protection cover (20).
4. An easy-to-use winter thermal insulation device for outdoor swimming pools as claimed in claim 3, wherein the first protective cover (18) is provided with a butt joint opening (21) at the rear side of the lower end, the power supply device (6) is arranged inside the butt joint opening (21), and the second protective cover (19) is provided with a transparent glass observation window (22) at the rear side.
5. The winter heat preservation device for outdoor swimming pools, which is easy and convenient to operate, as claimed in claim 1, wherein an electric push rod (23) is installed on the inner side of the fixed support frame (2), the electric push rod (23) is electrically connected with the power supply facility (6), a linkage rod (24) is movably connected to the upper end of the electric push rod (23), and the electric push rod (23) and the linkage rod (24) are arranged on the left side of the oil cylinder (9).
6. The winter heat preservation device for outdoor swimming pools as claimed in claim 5, wherein the left end of the cylinder (9) is horizontally and fixedly connected with a stable hook (25), and the linkage rod (24) is arranged inside the stable hook (25).
7. An easy-to-handle winter thermal insulation device for outdoor swimming pools as claimed in claim 1, wherein the top end of the folding bracket (3) is horizontally and transversely provided with a movable hinge (26), and a falling-preventing rod frame (27) is movably connected between the movable hinges (26).
8. An easy-to-handle winter thermal insulation device for outdoor swimming pools as claimed in claim 7, wherein the driven bracket (4) and the driving bracket (5) are horizontally and equidistantly provided with limiting beams (28), and the anti-falling rod frame (27) is movably connected to the lower sides of the limiting beams (28).
CN202110988323.6A 2021-08-26 2021-08-26 Winter heat preservation device of outdoor swimming pool easy and simple to handle Pending CN113653377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110988323.6A CN113653377A (en) 2021-08-26 2021-08-26 Winter heat preservation device of outdoor swimming pool easy and simple to handle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110988323.6A CN113653377A (en) 2021-08-26 2021-08-26 Winter heat preservation device of outdoor swimming pool easy and simple to handle

Publications (1)

Publication Number Publication Date
CN113653377A true CN113653377A (en) 2021-11-16

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ID=78492989

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110988323.6A Pending CN113653377A (en) 2021-08-26 2021-08-26 Winter heat preservation device of outdoor swimming pool easy and simple to handle

Country Status (1)

Country Link
CN (1) CN113653377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115419303A (en) * 2022-10-10 2022-12-02 重庆大学 Household swimming pool cover lifting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115419303A (en) * 2022-10-10 2022-12-02 重庆大学 Household swimming pool cover lifting device

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