An electric underwater leaf collector

Abstract

The utility model discloses an electric underwater leaf collector, including collector main part and set up on its set up device, set up device can supply water flow, and the collector main part includes: water flow drive arrangement, it includes water passing cover and the motor assembly in water passing cover, and the water passing cover is defined with motor assembly between the water inlet channel, the suction device, one end with water flow drive arrangement intercommunication, the other end with set up device intercommunication and form the suction channel, water flow drive arrangement is external in the suction device, and the water guide channel that is connected in the water inlet channel is equipped with in the suction device, and the water guide channel guides the water in the water inlet channel in set up device. The utility model can efficiently complete underwater leaf collection task, has simple structure, and the effect that the good effect of anti -blocking performance is good.

Description

Technical Field

[0001] This utility model relates to the field of underwater cleaning equipment technology, and in particular to an electric underwater leaf collector. Background Technology

[0002] In parks, courtyards, swimming pools, or landscape water bodies, cleaning up fallen leaves at the bottom is a common but tedious task. Accumulated leaves not only affect the aesthetics of the water, but their decomposition process also consumes oxygen in the water, disrupts the water quality balance, and affects the health of aquatic organisms.

[0003] Currently, underwater leaf removal mainly relies on manual labor using tools such as nets and rakes. This method is inefficient, labor-intensive, and ineffective in large or deep bodies of water. Some suction-type cleaning equipment uses a power pump, which typically generates negative pressure through a separate, electrically driven pump to suck up debris from the bottom. However, this solution has inherent drawbacks. First, independent pumps are usually complex in structure, large in size and weight, and expensive to manufacture. Second, the pump impeller or channels are prone to entanglement or blockage when sucking in leaves, fibers, and other debris, leading to equipment failure and making maintenance and cleaning very inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide an electric underwater leaf collector that can efficiently complete the task of collecting underwater leaves, and has the advantages of simple structure and good anti-clogging performance.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an electric underwater leaf collector, comprising a collector body and a waste collection device disposed thereon, wherein the waste collection device allows water flow, and the collector body comprises: A water flow drive device includes a water passage cover and a motor assembly located inside the water passage cover, wherein a water inlet channel is defined between the water passage cover and the motor assembly. A sludge suction device, one end of which is connected to the water flow driving device, and the other end of which is connected to the sludge collection device to form a sludge suction channel; The water flow driving device is externally mounted on the suction device; The suction device is equipped with a water guide channel connected to the water inlet channel, which guides the water in the water inlet channel into the sewage collection device.

[0006] By adopting the above technical solution, the underwater leaf collection task can be completed efficiently, with a simple structure and convenient operation. In addition, the water flow drive device is located outside the suction device, so the adsorbed dirt does not pass through the water flow drive device. This ensures the space utilization of the suction channel, prevents dirt from entangled or blocked by the impeller, ensures stable operation of the equipment, and facilitates maintenance and cleaning.

[0007] A further feature of this invention is that the suction device is provided with a spray section, the spray section is provided with a nozzle, the nozzle forms the water guiding channel, and the nozzle causes the water in the water inlet channel to be sprayed out towards the collection device at an accelerated speed.

[0008] By adopting the above technical solution, the pressure difference between the water inlet channel and the sewage suction channel is achieved to adsorb the sewage.

[0009] A further feature of this invention is that a flow channel is provided between the suction device and the spray section, the flow channel being connected to both the water inlet channel and the suction channel, and the flow channel having a minimum flow cross-sectional area a. min The nozzle has a maximum flow cross-sectional area b max and satisfy b max min This accelerates the water flow from the flow channel through the nozzle.

[0010] By adopting the above technical solution, the water flows through the nozzle and generates a high-speed water flow, which drives the surrounding still or low-speed fluid to move, thereby generating negative pressure in the suction channel and actively sucking the surrounding leaves, debris and other objects into the collection device, thus enhancing the collector's suction capacity and efficiency.

[0011] A further feature of this invention is that the flow channel has a maximum flow cross-sectional area a. max The water inlet channel has a minimum flow cross-sectional area c. min and satisfy a max <c min This accelerates the flow of water from the inlet channel through the outlet channel.

[0012] By adopting the above technical solution, the water flow is initially accelerated when it enters the flow channel from the inlet channel, preparing for subsequent acceleration and providing a stable and accelerated inflow for the entire device.

[0013] A further feature of this invention is that the nozzle opens toward the dirt collection device, and the nozzle is provided with a guide slope extending to its opening, the guide slope being inclined toward the opening direction of the nozzle.

[0014] By adopting the above technical solution and setting a guide slope, the water flow from the inlet channel can be effectively guided and gathered, so that the adsorbed dirt is more concentrated and smoothly ejected towards the dirt collection device, reducing the energy loss and turbulence of the water flow, making the speed of the jet water flow higher, thereby generating a stronger negative pressure inside the dirt collection device, and ultimately significantly improving the collector's adsorption force and suction efficiency for leaves.

[0015] ​A further feature of this invention is that the motor assembly includes a waterproof cover, a drive motor and a power supply located inside the waterproof cover, a stirring element is provided inside the waterproof cover, and the output shaft of the drive motor extends out of the waterproof cover and is connected to the stirring element in a transmission manner.

[0016] A further feature of this invention is that the stirring element is a centrifugal impeller, the inclination direction of its blades is aligned with the rotation direction of the output shaft of the drive motor, the water shroud is provided with a receiving cavity for accommodating the centrifugal impeller, the receiving cavity and the flow channel are located on the same horizontal plane, the rotation plane of the centrifugal impeller corresponds to the water inlet end of the flow channel, so that the water flow generated by the rotation of the centrifugal impeller is directly introduced into the flow channel along its rotation tangential direction.

[0017] By adopting the above technical solution, the drive motor drives the centrifugal impeller to rotate, pressurizing the water flow and accelerating it towards the nozzle. After passing through the nozzle, the water flow is pressurized again and ejected, thus forming a high-speed water flow in the suction device, which in turn generates a stronger negative pressure, improving the collector's adsorption force and suction efficiency for leaves. With the obstruction of the cavity wall, the water flow is directly thrown into the flow channel by the centrifugal force generated by the rotation of the stirring element, guiding the water flow more smoothly and efficiently, reducing water spillage and hydraulic loss, and making the water flow efficiency higher.

[0018] A further feature of this invention is that the suction device includes a conical section, the spray section is located on the conical section, and the inner diameter of the conical section gradually decreases toward the collection device.

[0019] By adopting the above technical solution, a stronger adsorption force is generated, thereby more efficiently sucking in leaves.

[0020] A further feature of this invention is that a handle is provided on the collector body, and the handle is used to move the collector body.

[0021] By adopting the above technical solution, it is easier for the operator to hold and operate the device.

[0022] A further feature of this invention is that a cam is provided at the bottom of the collector body, the cam protruding from the bottom surface of the collector body, thereby creating a gap between the collector body and the working surface.

[0023] By adopting the above technical solution, it is easy to move and clean the entire collector.

[0024] In summary, this utility model has the following beneficial effects: 1. The system utilizes water flow at different velocities in the inlet and suction channels, creating a pressure difference between the water flow drive and suction devices. This generates suction force within the suction device, drawing leaves through the suction channel into the collection unit. This method efficiently collects leaves underwater and features a simple structure and easy operation. Furthermore, the water flow drive is located outside the suction device, preventing the adsorbed debris from passing through it. This ensures efficient use of the suction channel space, prevents debris from entangled or clogging the impeller, guarantees stable equipment operation, and facilitates maintenance and cleaning.

[0025] 2. The flow channel is defined by the suction device and the spray unit. One end of the flow channel is connected to the outlet of the inlet channel, and the other end is connected to the suction channel through the nozzle. The minimum flow cross-sectional area of ​​the flow channel is greater than the maximum flow cross-sectional area of ​​the nozzle. This causes the water to accelerate after flowing through the nozzle from the flow channel, generating a high-speed water flow. This drives the surrounding still or low-speed fluid to move, thereby generating negative pressure in the suction channel. This actively sucks the surrounding leaves, debris, etc. into the collection device, enhancing the suction capacity and efficiency of the collector.

[0026] 3. The maximum flow cross-sectional area of ​​the overflow channel is smaller than that of the minimum flow cross-sectional area of ​​the inlet channel. This accelerates the water flow from the inlet channel to the overflow channel, creating a pressure difference. The water then flows from the overflow channel to the suction channel, where it is accelerated again, creating another pressure difference. This achieves a two-stage acceleration function, initially accelerating the water flow as it enters the overflow channel from the inlet channel, preparing for subsequent acceleration and providing a stable and accelerated inflow for the entire device.

[0027] 4. The nozzle is equipped with a guide ramp extending to its opening. The guide ramp is inclined towards the nozzle opening to effectively guide and concentrate the water flow sprayed from the water inlet channel. This ensures that the sprayed water flows unidirectionally at high pressure towards the sewage collection device without any rotational force in the same direction, preventing turbulence. This allows the adsorbed sewage to be more concentrated and smoothly ejected towards the sewage collection device, reducing energy loss and turbulence in the water flow. This results in a higher speed of the sprayed water flow, thereby generating a stronger negative pressure inside the sewage collection device. Ultimately, this significantly improves the collector's adsorption force and suction efficiency for leaves. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present invention.

[0029] Figure 2 This is a cross-sectional view of the present invention. Figure 1 .

[0030] Figure 3 This is a schematic diagram of the water flow direction of this utility model.

[0031] Figure 4This is a cross-sectional view of the present invention. Figure 2 .

[0032] Figure 5 This is an exploded view of the suction device and the spraying part of this utility model.

[0033] Figure 6 This is a utility model Figure 5 Enlarged view of point A in the middle.

[0034] In the diagram: 11. Water flow drive device; 110. Water inlet channel; 111. Water cover; 112. Receiving cavity; 113. Water inlet hole; 12. Sludge suction device; 120. Sludge suction channel; 121. Spraying part; 122. Nozzle; 123. Guide slope; 124. Conical section; 13. Handle; 14. Cam; 2. Sludge collection device; 3. Flow channel; 41. Waterproof cover; 42. Drive motor; 43. Power supply; 44. Agitator. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings.

[0036] An electric underwater leaf collector, such as Figure 1-6 As shown, the device includes a collector body and a waste collection device 2 disposed thereon. The waste collection device 2 allows water to flow through it. Preferably, the waste collection device 2 is detachably fitted onto the collector body for easy cleaning of waste inside. The waste collection device 2 is preferably made of a flexible material, such as a cloth bag or net. The above-mentioned use of a flexible material for the waste collection device 2 is only a preferred embodiment of this invention, but the waste collection device 2 is not limited to flexible materials. This application does not limit the specific material of the waste collection device 2. Any material that can collect leaves in water falls within the protection scope of this application. The collector body includes: A water flow drive device 11 includes a water passage cover 111 and a motor assembly located inside the water passage cover 111. A water inlet channel 110 is defined between the water passage cover 111 and the motor assembly. A water inlet hole 113 is provided on the water passage cover 111, and external water enters the water inlet channel 110 through the water inlet hole 113. The suction device 12 has a hollow structure, with its sidewalls connected to the water hood 111 and its top end connected to the collection device 2 to form a suction channel 120. The water flow driving device 11 is externally mounted on the sewage suction device 12; The suction device 12 is provided with a water guiding channel connected to the water inlet channel 110, and the water guiding channel guides the water in the water inlet channel 110 into the sewage collection device 2; Water flows at different velocities in the inlet channel 110 and the suction channel 120, creating a pressure difference between the water flow driving device 11 and the suction device 12. This generates an adsorption force within the suction device 12, causing leaves to be drawn into the collection device 2 through the suction channel 120. When the motor assembly drives external water flow into the inlet channel 110, it applies pressure to the water flow within the inlet channel 110, increasing its velocity. According to Bernoulli's principle, in the same fluid system, the faster the flow velocity, the lower the pressure; conversely, the slower the flow velocity, the higher the pressure. This creates a pressure difference between the inlet channel 110 and the suction channel 120, i.e., the pressure difference between the external water flow and the suction channel 120. This pressure difference generates a strong adsorption force, drawing external water flow into the suction channel 120 through the opening at the bottom of the suction device 12. Consequently, water containing dirt flows along the suction channel 120 to the collection device 2 at the top of the suction device 12 for collection. The above structure enables efficient underwater leaf collection, offering advantages of simple structure and convenient operation. Furthermore, in this technical solution, the water flow drive device 11 is located outside the suction device 12, preventing the adsorbed debris from passing through it. This ensures efficient space utilization of the suction channel 120, prevents debris from entangled or clogging the impeller, guarantees stable equipment operation, and facilitates maintenance and cleaning.

[0037] Preferably, the suction device 12 is provided with a spray section 121, which is circumferentially fixed to the suction device 12. The spray section 121 is provided with a plurality of nozzles 122, and the water guiding channel is formed in the nozzles 122. The nozzles 122 are arranged in a circumferential array along the spray section 121. Since the minimum diameter of the nozzles 122 is smaller than the diameter of the water inlet channel 110, the water pressure entering the nozzles 122 increases. As a result, the nozzles 122 cause the water in the water inlet channel 110 to be sprayed towards the collection device 2 at an accelerated speed, thereby realizing the pressure difference between the water inlet channel 110 and the suction channel 120 to adsorb the dirt. The specific principle and process have been explained above and will not be elaborated further here.

[0038] Preferably, the suction device 12 and the spray section 121 together define the flow channel 3. One end of the flow channel 3 is connected to the outlet end of the water inlet channel 110, and the other end is connected to the suction channel 120 through the connecting nozzle 122. The flow channel 3 has a minimum flow cross-sectional area a. min The nozzle 122 has a maximum flow cross-sectional area b max and satisfy b max min ​The water flows through the flow channel 3 and then through the nozzle 122, where it is accelerated. The principle of acceleration is the same as described above and will not be elaborated further here. After the water flows through the nozzle 122, it generates a high-speed water flow, which drives the surrounding still or low-speed fluid to move, thereby generating negative pressure in the suction channel 120. This actively sucks the surrounding leaves, debris, and other objects into the collection device 2, enhancing the collector's suction capacity and efficiency.

[0039] Preferably, the flow channel 3 has a maximum flow cross-sectional area a. max The water inlet channel 110 has a minimum flow cross-sectional area c. min and satisfy a max <c min This design accelerates the water flow from the inlet channel 110 through the flow channel 3, creating a pressure difference as the water flows from the inlet channel 110 to the flow channel 3. The water is then accelerated again as it flows from the flow channel 3 to the suction channel 120, creating another pressure difference, thus achieving a two-stage acceleration function. In this way, the water flow is initially accelerated when it enters the flow channel 3 from the inlet channel 110, preparing for subsequent acceleration and providing a stable and accelerated inflow for the entire device.

[0040] Preferably, the nozzle 122 opens towards the sludge collection device 2, and a guide slope 123 extending to its opening is provided on the nozzle 122. The guide slope 123 is inclined towards the opening direction of the nozzle 122. By providing the guide slope 123, the water flow sprayed from the water inlet channel 110 is effectively guided and concentrated, ensuring that the sprayed water flows unidirectionally and under high pressure towards the sludge collection device 2 without any unidirectional rotational force, preventing turbulence. This allows the adsorbed dirt to be more concentrated and smoothly sprayed towards the sludge collection device, reducing energy loss and turbulence in the water flow, resulting in a higher speed of the sprayed water flow. This generates a stronger negative pressure inside the sludge collection device, ultimately significantly improving the collector's adsorption force and suction efficiency for leaves.

[0041] Preferably, the motor assembly includes a waterproof cover 41, a drive motor 42 and a power supply 43 located inside the waterproof cover 41. The power supply 43 is used to drive the drive motor 42 to operate. A stirring element 44 is provided inside the water-passing cover 111. The stirring element 44 is preferably a stirring impeller. The output shaft of the drive motor 42 extends out of the waterproof cover 41 and is connected to the stirring element 44 in a transmission connection. After repeated testing, taking the drive motor 42 with a rated power of 40W as an example, when the water flow velocity sprayed through the spray section 121 reaches 41.6L / min, it can achieve the function of adsorbing leaves and can complete the water circulation normally.

[0042] Preferably, the stirring element 44 is a centrifugal impeller, the tilt direction of its blades is aligned with the rotation direction of the output shaft of the drive motor 42. The drive motor 42 drives the centrifugal impeller to rotate, pressurizing and accelerating the water flow towards the nozzle 122. After passing through the nozzle 122, the water is pressurized again and ejected, thereby forming a high-speed water flow in the suction device 12, which in turn generates a stronger negative pressure, improving the collector's adsorption force and suction efficiency for leaves. The water cover 111 is provided with a receiving cavity 112 to accommodate the centrifugal impeller. The receiving cavity 112 and the flow channel 3 are located on the same horizontal plane. The rotation plane of the centrifugal impeller corresponds to the water inlet end of the flow channel 3. Under the obstruction of the cavity wall, the water flows along the centrifugal force generated by the rotation of the centrifugal impeller and is directly introduced into the flow channel 3 along the tangential direction of the centrifugal impeller's rotation, guiding the water flow more smoothly and efficiently, reducing water spillage and hydraulic loss, and making the water flow efficiency higher.

[0043] Preferably, the suction device 12 includes a conical section 124, and the jet part 121 is located on the conical section 124. The inner diameter of the conical section 124 gradually narrows towards the collection device 2. According to the Venturi effect, the fluid velocity increases and the pressure decreases when passing through a pipe with a narrow cross-section. Therefore, when water flows through the conical section 124, the velocity increases significantly. This increase in velocity leads to a decrease in fluid pressure in that area, thereby creating a larger pressure difference in the conical section 124, generating a stronger suction force, and thus more efficiently sucking up leaves.

[0044] Preferably, the collector body is provided with a handle 13, which is used to move the collector body. The handle 13 can be a telescopic tube or connected to an extension tube. The extended part or extension part is convenient for the operator to hold for long-distance operation. The handle 13 is hinged to the collector body, which makes it easy to adjust the angle and achieve a more labor-saving effect.

[0045] Preferably, the bottom of the collector body is provided with a cam 14, which is preferably a caster wheel to facilitate the movement and cleaning of the entire collector. The cam 14 protrudes from the bottom surface of the collector body, creating a gap between the collector body and the working surface. The working surface is the plane where the dirt is located, such as the bottom of a swimming pool. Dirt such as leaves enters the suction channel 120 through this gap. At this time, the cam 14 also plays the role of supporting the entire collector.

[0046] The basic working principle of this utility model is as follows: The collector body is submerged in water, and the water flows into the water cover 111 through the water inlet 113. The drive motor 42 drives the centrifugal impeller to rotate, which first pressurizes and accelerates the water in the water inlet channel 110 towards the flow channel 3. Since the maximum flow cross-sectional area of ​​the flow channel 3 is smaller than the minimum flow cross-sectional area of ​​the water inlet channel 110, the water enters the flow channel 3 for a second pressurization and acceleration, and a pressure difference is formed. Since the minimum flow cross-sectional area of ​​the flow channel 3 is larger than the maximum flow cross-sectional area of ​​the nozzle 122, the water in the flow channel 3 is pressurized and accelerated for the third time after passing through the nozzle 122, and a pressure difference is formed again. It is sprayed out to the suction channel 120. Under the action of this pressure difference, the suction channel 120 will generate a strong suction force. After the suction device 12 is aligned with the target dirt, the external water flows into the suction channel 120 through the opening at the bottom of the suction device 12, so that the water with dirt reaches the collection device 2 at the top of the suction device 12 for collection.

[0047] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An electric underwater leaf collector, characterized in that: The collector includes a main body and a sludge collection device (2) disposed thereon, the sludge collection device allowing water to flow through, the main body of the collector including: A water flow drive device (11) includes a water sump (111) and a motor assembly located inside the water sump (111), wherein a water inlet channel (110) is defined between the water sump (111) and the motor assembly; A sludge suction device (12) has one end connected to the water flow driving device (11) and the other end connected to the sludge collection device (2) to form a sludge suction channel (120); The water flow driving device (11) is externally mounted on the sludge suction device (12); The suction device (12) is provided with a water guide channel connected to the water inlet channel (110), which guides the water in the water inlet channel (110) into the sewage collection device (2).

2. The electric underwater leaf collector according to claim 1, characterized in that: The suction device (12) is provided with a spray section (121), and the spray section (121) is provided with a nozzle (122). The nozzle (122) forms the water guiding channel, and the nozzle (122) causes the water in the water inlet channel (110) to be sprayed out towards the collection device (2) at an accelerated speed.

3. The electric underwater leaf collector according to claim 2, characterized in that: A flow channel (3) is provided between the suction device (12) and the spray section (121). The flow channel (3) is connected to the water inlet channel (110) and the suction channel (120) respectively. The flow channel (3) has a minimum flow cross-sectional area a. min The nozzle (122) has a maximum flow cross-sectional area b. max and satisfy b max min This causes the water to flow from the flow channel (3) through the nozzle (122) and then accelerate.​ 4. An electric underwater leaf collector according to claim 3, characterized in that: The flow channel (3) has a maximum flow cross-sectional area a max The water inlet channel (110) has a minimum flow cross-sectional area c. min and satisfy a max <c min This accelerates the flow of water from the inlet channel (110) through the flow channel (3).

5. An electric underwater leaf collector according to claim 2, characterized in that: The nozzle (122) opens toward the dirt collection device (2), and the nozzle (122) is provided with a guide slope (123) extending to its opening, the guide slope (123) being inclined toward the opening direction of the nozzle (122).

6. An electric underwater leaf collector according to claim 3, characterized in that: The motor assembly includes a waterproof cover (41), a drive motor (42) and a power supply (43) located inside the waterproof cover (41). A stirring element (44) is provided inside the water cover (111). The output shaft of the drive motor (42) extends out of the waterproof cover (41) and is connected to the stirring element (44) in a transmission manner.

7. An electric underwater leaf collector according to claim 6, characterized in that: The stirring component (44) is a centrifugal impeller, and the tilt direction of its blades is in line with the rotation direction of the output shaft of the drive motor (42). The water shroud (111) is provided with a receiving cavity (112) to accommodate the centrifugal impeller. The receiving cavity (112) and the flow channel (3) are located on the same horizontal plane. The rotation plane of the centrifugal impeller corresponds to the water inlet end of the flow channel (3), so that the water flow generated by the rotation of the centrifugal impeller is directly introduced into the flow channel (3) along its rotation tangential direction.

8. An electric underwater leaf collector according to claim 2, characterized in that: The suction device (12) includes a conical section (124), and the spray section (121) is located on the conical section (124). The inner diameter of the conical section (124) is gradually reduced in the direction of the collection device (2).

9. An electric underwater leaf collector according to claim 1, characterized in that: The collector body is provided with a handle (13), which is used to move the collector body.

10. An electric underwater leaf collector according to claim 1, characterized in that: A cam (14) is provided at the bottom of the collector body, and the cam (14) protrudes from the bottom surface of the collector body, so that a gap is formed between the collector body and the working surface.

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