Automatic folding and unfolding sunshade device for preventing moss generation of water collecting tank

By installing a sunshade on the water collection tank and linking it with a sludge scraper, automatic shading is achieved, solving the problem of algae growth in the tap water collection tank. This provides an efficient and environmentally friendly control method, reducing maintenance costs and the risk of secondary pollution.

CN121519675APending Publication Date: 2026-02-13NANJING BENSEN AUTOMATIZATION EQUIP CO LTD
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Patent Information

Application Number
CN202512006499.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-29
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

Water collection tanks are prone to algae growth during long-term use. Existing physical cleaning or chemical algae suppression methods are inefficient and may cause secondary pollution. There is a lack of efficient, environmentally friendly and long-lasting control technologies.

Method used

Stainless steel covers or sunshades are installed on the water collection tanks, and the operation cycle of the sludge scraper is precisely linked to achieve automatic winding and spreading of the roll-up sunshade, which blocks sunlight to inhibit the growth of moss.

Benefits of technology

It requires no chemical additives, is easy to operate, and has low cost, providing an environmentally friendly solution for controlling algae, ensuring the hygiene of the water supply system, and reducing maintenance burden.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of water supply and drainage, and particularly relates to an automatic sunshade folding and unfolding device for preventing moss generation of a water collecting tank, which comprises a roller shutter type sunshade arranged on the water collecting tank, the roller shutter type sunshade comprises a reel and a motor speed reducer, and the roller shutter type sunshade and a mud scraping and sucking machine can walk synchronously under the adjustment of a frequency converter; the roller shutter type sunshade is composed of a metal roller shutter and is provided with a good anti-rust and anti-ultraviolet coating. Stainless steel angle iron lies on a steel structure on the upper plane of the water collecting tank along the water collecting tank and serves as a support for paving the roller shutter type sunshade, the vertex angle of the angle iron serves as a sliding rail for paving and collecting the sunshade, and roller shutter type sunshade sliding grooves are formed in the side walls of the two sides of the advection pool; when the sludge scraping and sucking machine moves to the front end of the water collecting tank from the water inlet end, the sludge scraping and sucking machine touches the outer edge of the sunshade and touches sunshade limiting switches on the two sides of the horizontal flow pool, the sludge scraping and sucking machine moves and paves to the front end of the water collecting tank, the sunshade is touched to be limited, the electromagnet is powered off and released, and the sludge scraping and sucking machine continues to move back.
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Description

Technical Field

[0001] This invention relates to the field of water supply and drainage technology, specifically to an automatic retractable sunshade device for preventing moss growth in a water collection trough. Background Technology

[0002] Over long-term use, water collection tanks are prone to algae growth due to water stagnation, sunlight exposure, and nutrient accumulation. This not only affects the sensory quality of the water but may also clog process channels, increase maintenance costs, and potentially threaten the safety and hygiene of the water supply.

[0003] Current common physical cleaning or chemical algae suppression methods have problems such as low efficiency and the possibility of secondary pollution caused by residual chemical agents. There is a lack of an efficient, environmentally friendly and long-lasting control technology.

[0004] Through long-term practice and research, we have found that sunlight is a key factor in the growth of moss, and blocking sunlight can prevent moss from growing. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic retractable sunshade device for preventing algae growth in a water collection tank, in order to solve the problems mentioned in the background art, such as low efficiency and potential secondary pollution caused by residual chemical agents, and the lack of an efficient, environmentally friendly and durable control technology.

[0006] To achieve the above objectives, this invention provides the following technical solution: addressing the problem of algae growth in water collection tanks through prevention rather than treatment. Shading is the most effective preventative measure; installing stainless steel covers on the water collection tank or erecting a sunshade canopy above the tank can significantly inhibit algae growth. Considering that a sludge scraper trolley travels on a track on the top surface of the horizontal flow sedimentation tank, to prevent the sunshade canopy from interfering with the sludge scraper's movement, the sunshade canopy should ideally be a tall structure higher than the trolley or a low structure lower than the trolley. Tall structures should have a robust load-bearing structure and pile foundation, suitable for use in newly constructed horizontal flow sedimentation tanks. For the modification of existing horizontal flow sedimentation tank water collection tanks to prevent algae growth through shading, the contradiction between "shading" and "sludge scraper operating space" needs to be resolved. Therefore, we propose a solution that integrates a "roller blind-type sunshade canopy" with the sludge scraper.

[0007] The core of the solution lies in implementing a reliable automatic winding and spreading system, precisely linked to the operating cycle of the sludge scraper. When the sludge scraper travels from the inlet to the front of the collection tank, it touches the outer edge of the sunshade and triggers the limit switches on both sides of the horizontal sedimentation tank. The reducer of the sunshade roller motor installed at the tail end of the horizontal sedimentation tank starts, and the roller rotates at the same linear speed as the sludge scraper to wind up the roll-up sunshade. While the sludge scraper scrapes and sucks up sludge, an electromagnet holds the outer edge of the roll-up sunshade, assisting the roller and preventing it from deviating. When the sludge scraper reaches the tail end of the horizontal sedimentation tank, the roll-up sunshade... Once the entire canopy is retracted and the limit switch is triggered, the traveling motor and the roller motor stop. The scraper and suction machine then returns to its original position. The three electromagnets on its gantry (left, center, and right) attract the outer edge of the roller-type sunshade, energizing the roller motor to reverse and unwind. The scraper and suction machine gantry pulls the roller-type sunshade along with it, releasing the roller at the same linear speed as the gantry. When the roller-type sunshade reaches the front of the water collection trough, it triggers the limit switch, de-energizing the electromagnets and releasing them. The roller-type sunshade is then in place, and the scraper and suction machine continues to return.

[0008] Furthermore, the roller blind awning is constructed of metal roller blinds with a good anti-rust and anti-UV coating, meets water wading permit requirements, and has a relatively long roller with good strength and rigidity. Stainless steel angle irons are laid along the upper edge of the water collection trough to support the spreading of the roller blind awning, and the top corners of the angle irons serve as slide rails for the spreading and retraction of the awning. Roller blind awning slide rails are installed on both side walls of the flow pool, and the roller and motor reducer brackets are raised and installed on the end wall of the flow pool.

[0009] Furthermore, roll-up awnings are primarily laid out in warm sunlight and should be retracted in winter, windy, or rainy weather. In case of sudden weather changes, retract the awning in advance according to the roll-up procedure. When the gantry crane returns, the electromagnet should not be energized, and the roller motor should not reverse.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] This method requires no chemical additives, is simple to operate, and has low cost. It provides an environmentally friendly and sustainable solution for algae control in tap water collection tanks and has practical application value for ensuring the hygiene of water supply systems, reducing maintenance burdens, and promoting green management of urban water supply facilities. Attached Figure Description

[0012] Figure 1 This is a top view of the structure of the present invention;

[0013] In the diagram: 1. Motor reducer; 2. Roller; 3. Sunshade; 4. Water collection tank; 5. Stainless steel angle steel; 6. Slide chute; 7. Sludge scraper; 8. Electromagnet; 9. Limit switch at the tail of the horizontal flow pool; 10. Limit switch for the sunshade's position. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] In the description of this invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0016] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] Example:

[0018] Please see Figure 1 The present invention provides a technical solution: a roller shutter type sunshade 3 roller 2 and a motor reducer 1 are fixedly installed above the water collection tank 4 at the tail end of the horizontal flow sedimentation tank, so that the distance between the roller 2 and the water collection tank 4 and the wall can accommodate the maximum radius when the sunshade 3 is fully rolled up, and the roller of the motor reducer 1 is waterproofed, moisture-proofed and corrosion-resistant (such as using a motor with an IP67 or higher protection level).

[0019] A designated plane is erected and leveled above all the water collection troughs 4 in the horizontal flow pool. On the leveled structural surface above each water collection trough, a single stainless steel angle steel 5 is laid flat and fixed from beginning to end along the direction of the water collection trough to support the sunshade 3 and to facilitate its spreading and rolling. Roller shutter tracks 6 are installed on the side walls of the horizontal flow pool, 5m away from the end of the pool and level with the sunshade support plane. The tracks 6 serve to fix the spread sunshade. The sunshade 3 uses metal roller shutters, which have a high light-blocking rate, are lightweight, have low wind resistance, and are easy to roll up quickly. They are coated with an anti-rust, anti-ultraviolet, and aging-resistant coating.

[0020] The operation and control of the roller blind awning 3 can be integrated into the control and communication of the scraper and suction machine 7. The speed of the roller motor reducer 1 is adjusted by the frequency converter. The speed setting is consistent with the walking speed setting of the scraper and suction machine 7 during debugging. The winding, unwinding and the suction and release signals of the electromagnet 8 are triggered by the limit switches 9 and 10 at both ends of the awning. The operation cycle control is set by the PLC of the scraper and suction machine 7 control cabinet. The manual dispatching command and monitoring are connected to the central control room and the scraper and suction machine control cabinet in real time through a wireless router.

[0021] The roll-up sunshade 3 is ready to be unrolled and spread. The sludge scraper 7 comes to the end of the horizontal sedimentation tank and approaches the roll of the sunshade 3. It stops when it touches the limit switch 9 at the end of the tank and is authorized to spread. The three electromagnets 8 on the gantry of the sludge scraper 7 attract the outer edge of the roll-up sunshade. The roller motor reducer 1 is energized and reverses to unroll. The gantry of the sludge scraper 7 pulls the roll-up sunshade to spread. The roller 2 is released at the same linear speed as the gantry. It moves and spreads to the front of the water collection tank. It touches the sunshade positioning limit switch 10. The electromagnets 8 are de-energized and released. The roll-up sunshade 3 is in place. The sludge scraper 7 continues to move back.

[0022] When the sludge scraper 7 moves from the inlet to the front of the collection tank 4, it touches the outer edge of the sunshade 3 and triggers the sunshade limit switches 10 on both sides of the flow pool. The three electromagnets 8 on the gantry of the sludge scraper 7 are energized and attract the outer edge of the sunshade 3. The motor reducer 1 of the sunshade 3 roller 2 starts, and the roller 2 rotates at the same linear speed as the sludge scraper 7 to roll up the roller-type sunshade 3. While scraping and sucking sludge, the sludge scraper 7 moves along the outer edge of the roller-type sunshade 3 while the electromagnets 8 attract it, providing assistance to the roller 2 and preventing it from rolling off course. When the sludge scraper 7 reaches the end of the flow pool, the roller-type sunshade 3 is fully retracted and touches the end limit switch 9, at which point the gantry motor and the roller sludge roller motor stop.

[0023] Before stormy weather arrives, a manual command is issued, and the gantry-type scraper-suction machine 7 comes to assist in the winding up; after the rain, it can be used in conjunction with suction or alone to assist in unwinding and paving; during the cold season, the sunshade 3 remains in the retracted state, and the scraper-suction machine 7 operates independently.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic retractable sunshade device for preventing moss growth in a water collection trough, characterized in that: The automatic retractable sunshade (3) device includes a water collecting tank (4) and an auxiliary steel structure, and the water collecting tank (4) is prevented from growing moss by the sunshade (3), and the device includes a steel structure plane arranged on the water collecting tank (4) and a stainless steel angle steel (5) lying along the water collecting tank (4) as a support and guide rail for retracting and releasing the sunshade (3), and the device includes a reel (2), a motor speed reducer (1) and a frequency converter, the operation and control of the automatic retractable sunshade (3) device and the control and communication of the mud scraping and sucking machine (7) are integrated, the winding and unwinding and the attracting and releasing signals of the electromagnet (8) are triggered by the first limit switch (9) and the second limit switch (10) at two ends, the operation cycle control is set by the PLC of the control cabinet of the mud scraping and sucking machine (7), and manual scheduling commands and monitoring are connected to the central control room and the mud scraping and sucking machine control cabinet through a wireless router to realize real-time interaction.

2. A water collecting gutter anti-algae automatic retractable sunshade device according to claim 1, characterized in that: The sunshade (3) is a roller shutter type.

3. A water collecting gutter anti-algae automatic retractable sunshade device according to claim 1, characterized in that: The reel motor speed reducer (1) adjusts the speed through the frequency converter, and the speed is set synchronously with the walking speed setting of the mud scraping and sucking machine (7) during debugging.

4. The automatic retractable sunshade device for water-collecting tank anti-algae according to claim 1, characterized in that: The automatic retractable sunshade (3) device and the catwalk of the mud scraping and sucking machine (7) are connected and separated through the attraction and release of the electromagnet (8).