A hand-held pool vacuums

Abstract

The utility model relates to a hand -held type swimming pool sewage suction machine, including host computer and storage sewage box, the storage sewage box includes upper box body, lower box body and filter piece, the filter piece includes the filter screen of middle part and the sealing ring of outer ring, upper box body and lower box body detachably connect with sealing ring clamping simultaneously, the inner chamber of storage box is divided into upper cavity and lower cavity through filter screen, be equipped with the sewage suction mouth of intercommunication lower cavity on lower box body, the outer surface of at least one side of sewage suction mouth of lower box body is provided as inclined plane, the host computer is equipped with the installation position of upper box body installation, and rotatable impeller is provided at installation position, and the position of the suction end of impeller is opposite upper cavity, filter screen, lower cavity and sewage suction mouth.

Description

Technical Field

[0001] This utility model relates to the field of swimming pool cleaning, and in particular to a handheld swimming pool vacuum cleaner. Background Technology

[0002] In the field of pool cleaning equipment, handheld pool vacuum cleaners are widely used for cleaning dirty pools in home pools, small recreational pools, and other scenarios due to their flexibility and versatility. The core structure of existing handheld pool vacuum cleaners typically includes three main components: the main unit, the waste storage section, and the suction head. Its working principle is as follows: the power unit inside the main unit (such as a vacuum pump or negative pressure generator) generates negative pressure suction force. Under this suction force, dirt, sand, hair, suspended debris, and other dirt in the pool are drawn through the suction head into the connecting pipes and ultimately transported to the waste storage section for collection and storage. After the cleaning operation is completed, the dirt in the waste storage section is then cleaned.

[0003] However, existing handheld pool vacuum cleaners have significant structural design flaws, which greatly limit their ease of use and cleaning efficiency. Firstly, the disassembly and cleaning process of the sludge storage section is cumbersome. Because the sludge storage section is fixed to both the suction head and the main unit via connecting structures (such as threaded connections, snap-fit ​​connections, flange connections, etc.), when cleaning the sludge inside, it is necessary to first separate the sludge storage section from the suction head, then disassemble it from the main unit. After cleaning, the sludge storage section must be reassembled with the main unit and suction head in sequence. The entire process involves many steps, is time-consuming, and repeated disassembly can easily lead to wear on the connecting structures, affecting the sealing performance and lifespan of the equipment. At the same time, the cumbersome disassembly process also reduces the user's operating experience, especially for scenarios requiring frequent cleaning. The lack of ease of operation is even more pronounced in cleaning scenarios such as low-water-level swimming pools (such as children's pools around 1 meter in diameter), bathtubs, or fish tanks.

[0004] Secondly, the complex design of the connecting pipelines leads to a loss of suction power. To achieve fluid flow between the main unit, the sludge storage section, and the suction head, existing equipment requires multiple connecting pipelines (such as the inlet pipeline between the main unit and the sludge storage section, and the guide pipeline between the sludge storage section and the suction head), and each pipeline section needs to be connected by joints, seals, etc. This complex pipeline layout not only increases the assembly difficulty and manufacturing cost of the equipment, but more importantly, the increased pipeline length, fluid resistance at bends, and sealing gaps at various joints cause a significant loss of the negative pressure suction power generated by the main unit during transmission. This reduces the actual effective suction power obtained by the suction head, thus affecting the efficiency of dirt suction. Especially for denser sludge, clumps, and other impurities, it is difficult to achieve efficient adsorption and cleaning, reducing the cleaning effect and operating efficiency of the equipment.

[0005] In summary, existing handheld pool vacuum cleaners suffer from problems such as complex disassembly of the waste storage section and loss of suction power due to unreasonable design of connecting pipes, which restricts their ease of use and cleaning performance. They cannot meet users' needs for efficient and convenient pool cleaning equipment. Therefore, it is urgent to optimize and improve the structure of existing handheld pool vacuum cleaners to solve the above-mentioned technical defects. Utility Model Content

[0006] The purpose of this invention is to solve the above-mentioned technical problems and provide a handheld pool vacuum cleaner that combines the suction head and the pool storage part.

[0007] A handheld pool vacuum cleaner includes a main unit and a pool tank. The pool tank includes an upper body, a lower body, and a filter element. The filter element includes a central filter screen and an outer sealing ring. The upper and lower bodies are detachably connected while clamping the sealing ring. The filter screen divides the inner cavity of the pool tank into an upper cavity and a lower cavity. The lower body has a suction port communicating with the lower cavity, and at least one outer surface of the lower body with the suction port is inclined. The main unit has a mounting position for mounting the upper body, and a rotatable impeller is provided at the mounting position. The suction end of the impeller is positioned directly opposite the upper cavity, the filter screen, the lower cavity, and the suction port.

[0008] The handheld pool vacuum cleaner of this application fundamentally solves the core pain points of traditional handheld pool vacuum cleaners, namely, complex disassembly of the waste storage components and significant suction loss. Firstly, the waste storage box adopts a structure where the upper and lower boxes are detachably connected and simultaneously clamped with a sealing ring. This eliminates the need to disassemble the upper box from the main unit; cleaning is only required by separating the upper and lower boxes, significantly simplifying the cleaning process for the waste storage components. Simultaneously, the clamped sealing ring forms a reliable seal, preventing backflow of waste. The filter screen divides the inner cavity of the waste storage box into upper and lower chambers, effectively intercepting and temporarily storing waste, ensuring continuous vacuuming operations. Secondly, the suction port on the lower box has an inclined surface, adaptable to different cleaning surfaces such as the pool bottom and walls. When the vacuum cleaner is used at an angle, it is not limited by the tilt angle, allowing the suction port to fit snugly against the cleaning surface, reducing the gap between the suction port and the cleaning surface, and lowering the risk of suction leakage. Thirdly, the impeller suction end of the main unit is directly aligned with the upper cavity, filter screen, lower cavity and suction port of the sludge storage box, making the suction transmission path straight. This eliminates the need for multiple connecting pipes in traditional equipment, minimizes suction loss during transmission, ensures effective suction at the suction port, and improves overall sludge suction efficiency.

[0009] Furthermore, the impeller is a centrifugal impeller, and its rotation axis passes sequentially from top to bottom through the upper cavity, filter screen, lower cavity, and suction port. The centrifugal impeller possesses strong negative pressure adsorption and fluid transport capabilities, efficiently adsorbing various types of dirt such as sediment and hair in the swimming pool, meeting the core needs of pool cleaning. Moreover, the fact that the centrifugal impeller's rotation axis passes sequentially from top to bottom through the upper cavity, filter screen, lower cavity, and suction port ensures a completely straight suction transmission path, eliminating the bending resistance of the fluid at the cavity and suction port, avoiding additional suction attenuation, and simultaneously driving dirt in the lower cavity to quickly collect towards the filter screen, improving dirt interception efficiency. In addition, the coaxial axis design reduces eccentric vibration during impeller operation, lowers mechanical wear, and extends the equipment's service life.

[0010] Furthermore, the lower box is axially symmetrically arranged, possessing a symmetrical axis plane. The suction port is positioned on this symmetrical axis plane, and the inclined surfaces and the detachable connection structure between the upper and lower boxes are symmetrically arranged on both sides of the suction port, centered on the symmetrical axis plane. This symmetrical detachable connection structure ensures even distribution of locking force between the upper and lower boxes, preventing localized sealing issues and improving the sealing reliability of the sludge storage box. The symmetrical inclined surfaces can accommodate cleaning angles in multiple directions, enhancing the device's adaptability to cleaning special areas such as pool corners and walls.

[0011] Furthermore, the detachable connection structure of the upper and lower boxes includes a first protrusion on the upper box and a ring buckle on the lower box. The ring buckle engages with the first protrusion, allowing the upper and lower boxes to be detachably connected. The fastening structure formed by the first protrusion on the upper box and the ring buckle on the lower box allows for the disassembly and assembly of the waste storage box without the need for any additional tools.

[0012] Furthermore, the lower housing is also equipped with rollers, which are located at both ends of the suction port, and the rotation axis of the rollers is located within the plane of symmetry. The rollers replace sliding between the lower housing and the pool surface by rolling, significantly reducing frictional resistance during equipment movement, allowing users to easily push the equipment to complete large-area cleaning and reducing labor intensity. Secondly, the rollers prevent the lower housing from directly contacting the pool lining, preventing scratches to the protective layers of the pool walls and bottom, and protecting pool facilities. Thirdly, the symmetrically distributed rollers ensure the stability of the equipment during movement, preventing one-sided jamming that could cause the suction port to shift, and maintaining the continuity of the suction operation.

[0013] Furthermore, the filter screen has an upward-protruding arc-shaped reinforcing rib in the middle, causing the filter screen to bulge upward into the upper cavity. The reinforcing rib enhances the overall rigidity of the filter screen, resists the negative pressure suction generated by the impeller operation, prevents the filter screen from denting, deforming, or even breaking due to pressure, and extends the service life of the filter element; it also increases the volume of the lower cavity, thereby increasing its ability to store dirt.

[0014] Furthermore, the edge of the suction port is rounded with a chamfer, which extends towards the inclined surface and smoothly transitions to it. The rounded chamfer eliminates sharp edges, preventing scratches on the pool walls and bottom protective layer during cleaning and reducing the risk of damage to pool facilities. The smooth transition of the chamfer to the inclined surface creates a natural flow slope, guiding dirt and grime from the pool smoothly into the suction port along the inclined surface and chamfer, reducing dirt buildup at the edge of the suction port, improving suction efficiency, and further ensuring overall cleaning effectiveness.

[0015] Furthermore, when the waste collection box is erected on a horizontal plane, the angle between the inclined surface and the horizontal plane is 35°-45°. This angle optimizes the direction of force applied by the user during operation, reduces the bending range of the arm, and reduces fatigue during long-term cleaning operations.

[0016] Furthermore, it also includes an extension pipe, which, along with the sludge collection box, is detachably installed at both ends of the main unit. The detachable installation of the extension pipe and sludge collection box allows users to flexibly adjust the operating length according to the depth and area of ​​the pool, enabling them to complete cleaning operations deep within the pool bottom and walls without bending over or entering the water, significantly reducing labor intensity. The detachable design of the extension pipe allows it to be disassembled and stored when long-distance operation is not required, reducing the overall storage volume of the equipment and improving its portability and storage flexibility.

[0017] Furthermore, the main unit also includes a drive device, which is connected to the impeller drive. The side of the mounting position is provided with a discharge port, and the discharge end of the impeller is arranged facing the discharge port. Attached Figure Description

[0018] Figure 1 This is a perspective view of the mop of this utility model.

[0019] Figure 2 This is an exploded view of the handheld pool vacuum cleaner of this utility model.

[0020] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0021] Figure 4 This is a cross-sectional view of the handheld pool vacuum cleaner of this utility model.

[0022] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0023] Figure 6 This is an exploded view of the sludge storage box of this utility model.

[0024] Figure 7 This is a side view of the sludge storage box of this utility model.

[0025] Figure 8 This is a cross-sectional view of the sludge storage box of this utility model in an inclined state. Detailed Implementation

[0026] The present invention relates to a handheld pool vacuum cleaner, described in conjunction with the accompanying drawings.

[0027] like Figures 1 to 8 The illustration shows a handheld pool vacuum cleaner, comprising a main unit 1 and a pool collection box 2. The pool collection box 2 includes an upper box body 22, a lower box body 21, and a filter element 23. The filter element 23 includes a filter screen 232 in the middle and a sealing ring 231 on the outer ring. The upper box body 22 and the lower box body 21 are detachably connected, clamping the sealing ring 231. The filter screen 232 divides the inner cavity of the pool collection box into an upper cavity and a lower cavity. The lower box body 21 is provided with a suction port 2 that communicates with the lower cavity. 11. The lower housing 21 has at least one side of the outer surface of the suction port 211 set as an inclined surface 214; the main unit 1 has a mounting position 11 for mounting the upper housing 22, and a rotatable impeller 12 is provided at the mounting position 11. The suction end 121 of the impeller 12 is positioned directly opposite the upper cavity, the filter screen 232, the lower cavity, and the suction port 211. The main unit 1 also includes a driving device, which is connected to the impeller 12 in a transmission manner. The side of the mounting position 11 is provided with a drain... The outlet 111 is provided, with the discharge end 122 of the impeller 12 facing the outlet 111. When the handheld pool vacuum cleaner is started, the impeller 12 is driven to rotate by the drive device, thereby generating suction at the suction end 121. Dirt, water, or air in the pool are directly sucked into the collection box 2 through the suction port 211 by the suction force. After being filtered by the filter screen 232 in the collection box 2, larger dirt (such as mud, hair, and suspended impurities) is blocked by the filter screen 232. The air and water, which are stored in the lower chamber, pass through the filter screen 232 and enter the upper chamber. Then, under the action of the impeller 12, they are discharged from the outlet 111 of the handheld pool vacuum cleaner. After the vacuuming work is completed, there is no need to disassemble the upper box 22 and the main unit 1. The lower box 21 can be detached from the upper box 22 through the detachable connection structure between the upper box 22 and the lower box 21. The dirt on the lower box 21 and the filter element 23 can be treated, which greatly simplifies the cleaning process of the dirt storage components.

[0028] like Figure 4 and Figure 5As shown, the impeller 12 is a centrifugal impeller 12. The rotation axis a of the centrifugal impeller 12 passes through the upper cavity, filter screen 232, lower cavity, and suction port 211 from top to bottom. The suction end 121 of the impeller 12 of the main unit 1 is directly opposite the upper cavity, filter screen 232, lower cavity, and suction port 211 of the sludge storage box 2, making the suction transmission path straight. This eliminates the need for multiple connecting pipes in traditional equipment, minimizes the loss of suction during transmission, ensures effective suction at the suction port 211, and improves the overall sludge suction efficiency. Furthermore, to prevent the sludge sucked into the lower cavity from flowing back into the pool, the lower box of this application... 21. An elastic cover plate 215 is also provided at the connection between the suction port 211 and the lower cavity. One side of the cover plate 215 is fixed to the inner wall of the lower box 21 on one side of the suction port 211, and the other side is movable. Because the cover plate 215 is elastic, under normal conditions, the cover plate 215 naturally covers the suction port 211. When the impeller 12 is started, the cover plate 215 is pushed open by the water flow or air flow due to the generation of suction. At this time, the cover plate 215 undergoes elastic deformation. When the impeller 12 stops, the cover plate 215 returns to the state of covering the suction port 211 under the action of elasticity, so as to prevent dirt from flowing back into the pool.

[0029] like Figures 4 to 8 As shown, the lower box 21 is axially symmetrically arranged, having a symmetrical axis plane b, and the rotation axis a is located on the symmetrical axis plane b and coincides with each other. The suction port 211 is arranged on the symmetrical axis plane b. The inclined surface 214 and the detachable connection structure of the upper box 22 and the lower box 21 are symmetrically arranged on both sides of the suction port 211 with the symmetrical axis plane as the center.

[0030] like Figure 6 As shown, the detachable connection structure of the upper box 22 and the lower box 21 includes a first protrusion 222 on the upper box 22 and a ring buckle 213 on the lower box. The ring buckle 213 is fastened to the first protrusion 222 to detachably connect the upper box 22 and the lower box 21. The fastening structure formed by the first protrusion 222 of the upper box 22 and the ring buckle 213 of the lower box 21 allows the disassembly and assembly of the sludge storage box 2 to be completed without the need for any additional tools. The upper box 22 and the lower box 21 have stepped portions at the positions where the sealing ring 231 is clamped. The sealing ring 231 is clamped by the two stepped portions. The symmetrical detachable connection structure allows the locking force of the upper and lower boxes 21 to be evenly distributed, avoiding the problem of local sealing failure and improving the sealing reliability of the sludge storage box 2.

[0031] like Figure 3 and Figure 7As shown, the lower box 21 is also provided with rollers 212. The rollers 212 are located at both ends of the suction port 211, and the rotation axis of the rollers 212 is located in the plane of symmetry b, which coincides with the plane of symmetry. The rollers 212 can replace the sliding between the lower box 21 and the contact surface of the pool by rolling, which greatly reduces the frictional resistance when the equipment moves, allowing users to easily push the equipment to complete large-area cleaning and reduce the labor intensity of operation.

[0032] like Figure 6 As shown, the filter screen 232 has an upwardly protruding arc-shaped reinforcing rib in the middle, which makes the filter screen 232 protrude into the upper cavity and increase the space of the lower cavity.

[0033] like Figure 3 As shown, the edge of the suction port 211 is provided with a rounded chamfer, which extends towards the inclined surface 214 and smoothly transitions with it. The rounded chamfer at the edge of the suction port 211 can eliminate sharp edges, preventing scratches on the pool wall and bottom protective layer during cleaning, and reducing the risk of damage to pool facilities. This is especially important for pools with low water levels and plastic products, such as children's pools, where the design prevents cuts. The smooth transition of the rounded chamfer to the inclined surface 214 forms a natural flow slope, guiding the dirt in the pool smoothly into the suction port 211 along the inclined surface 214 and the chamfer, reducing the retention of dirt at the edge of the suction port 211, improving the efficiency of dirt suction, and further ensuring the overall cleaning effect.

[0034] like Figure 7 As shown, when the sludge storage box 2 is erected on a horizontal plane, the angle c between the inclined surface 214 and the horizontal plane is 35°-45°, and in this embodiment, the angle c is preferably 43°.

[0035] like Figures 1 to 8As shown, it also includes an extension tube, which is detachably installed at both ends of the main unit 1 along with the sludge collection box 2. The extension tube is threadedly connected to the main unit 1, enabling a detachable connection between the extension tube and the main unit 1. The extension tube extends the overall length of the vacuum cleaner, thereby increasing the cleaning area it can handle. Users can flexibly adjust the operating length according to the depth and area of ​​the pool, completing cleaning operations deep within the pool bottom and walls without bending over or going into the water, significantly reducing the labor intensity of operation. The extension tube is detachable and can be disassembled and stored when long-distance operation is not required. The overall storage volume of the equipment is reduced, improving its portability and storage flexibility. The waste storage box 2 is detachably connected to the main unit 1 via the upper box body 22. The upper box body 22 is provided with a rotating locking groove 221, and the inner side wall of the mounting position 11 is provided with a second protrusion 112. During installation, the second protrusion 112 is positioned opposite to the rotating locking groove 221, which is L-shaped. The second protrusion 112 is first inserted into the rotating locking groove 221 and then rotated, so that the second protrusion 112 is locked at the deepest part of the rotating locking groove 221, thereby realizing the snap-on and detachable connection between the waste storage box 2 and the main unit 1.

[0036] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A handheld pool vacuum cleaner, characterized in that, The device includes a main unit and a sludge storage box. The sludge storage box includes an upper box body, a lower box body, and a filter element. The filter element includes a filter screen in the middle and a sealing ring on the outer ring. The upper box body and the lower box body are detachably connected while clamping the sealing ring. The filter screen divides the inner cavity of the storage box into an upper cavity and a lower cavity. The lower box body is provided with a sludge suction port that communicates with the lower cavity. At least one side of the outer surface of the lower box body with the sludge suction port is set as an inclined surface. The main unit is provided with a mounting position for mounting the upper box body, and a rotatable impeller is provided at the mounting position. The suction end of the impeller is positioned directly opposite the upper cavity, the filter screen, the lower cavity, and the sludge suction port.

2. The handheld pool vacuum cleaner according to claim 1, characterized in that, The impeller is a centrifugal impeller, and the rotation axis of the centrifugal impeller passes through the upper cavity, filter screen, lower cavity and suction port from top to bottom.

3. The handheld pool vacuum cleaner according to claim 1, characterized in that, The lower box is symmetrically arranged and has a symmetrical axis surface. The suction port is located on the symmetrical axis surface. The inclined surface and the detachable connection structure of the upper and lower boxes are symmetrically arranged on both sides of the suction port with the symmetrical axis surface as the center.

4. The handheld pool vacuum cleaner according to claim 3, characterized in that, The detachable connection structure of the upper and lower boxes includes a first protrusion on the upper box and a ring on the lower box, wherein the ring is fastened to the first protrusion to detachably connect the upper and lower boxes.

5. The handheld pool vacuum cleaner according to claim 3, characterized in that, The lower box is also equipped with rollers, which are located at both ends of the suction port, and the rotation axis of the rollers is located in the plane of symmetry.

6. The handheld pool vacuum cleaner according to claim 3, characterized in that, The filter screen has an upward-protruding arc-shaped reinforcing rib in the middle, causing the filter screen to bulge upward into the cavity.

7. The handheld pool vacuum cleaner according to claim 1, characterized in that, The edge of the suction port is provided with a rounded chamfer, and the rounded chamfer extends to one side of the inclined surface and smoothly transitions with the inclined surface.

8. The handheld pool vacuum cleaner according to claim 1, characterized in that, When the sludge storage box is erected on a horizontal plane, the angle between the inclined plane and the horizontal plane is 35°-45°.

9. The handheld pool vacuum cleaner according to claim 1, characterized in that, It also includes an extension pipe, which is detachably installed at both ends of the main unit along with the sludge storage box.

10. The handheld pool vacuum cleaner according to claim 1, characterized in that, The main unit also includes a drive device, which is connected to the impeller drive. The side of the mounting position is provided with a discharge port, and the discharge end of the impeller is arranged facing the discharge port.

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