Double-wheel cleaner

Abstract

The utility model relates to the technical field of swimming pool cleaning, in particular to a double-wheel cleaner which comprises an outer shell, a connecting sleeve shell, a connecting pipe, a butt joint pipe and an anti-disengaging ring. A first limiting ring plate and a second limiting ring plate are fixedly connected to the outer wall of the butt joint pipe at intervals, and the second limiting ring plate is located at the end of the butt joint pipe and is parallel to the first limiting ring plate. The two side faces, close to each other, of the first limiting ring plate and the second limiting ring plate and the outer wall of the butt joint pipe jointly form a limiting ring groove allowing the sand prevention ring to be clamped into, and the sand prevention ring is clamped into the limiting ring groove and abuts against the inner wall of the connecting pipe. The device has the advantages that the problem that dirt easily enters the position between the butt joint pipe and the dirt inlet pipe is solved, and the smoothness of relative rotation between the butt joint pipe and the dirt inlet pipe is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pool cleaning, and particularly relates to a two-wheel cleaner. Background Art

[0002] During the long-term use of outdoor pools, sundries such as dust, fallen leaves, gravel, and crushed stones will deposit at the bottom of the pool. The two-wheel cleaner can clean the dirt at the bottom of the pool when the pool is in a water storage state.

[0003] In related technologies, the two-wheel cleaner is usually externally connected to a sewage pump. During the process of the two-wheel cleaner moving at the bottom of the pool, the dirt is sucked into the body through the negative pressure effect of the sewage pump, and then the sundries are discharged through a pipeline connecting the pump body and the body. A connecting sleeve shell communicating with the outer shell is arranged inside the outer shell of the two-wheel cleaner. A connecting pipe communicating with the inside of the sleeve shell is integrally arranged on the sleeve shell. A docking pipe for externally connecting the sewage pump is rotatably connected to the connecting pipe. The dirt enters the outer shell, passes through the connecting sleeve shell and enters the connecting pipe, and then enters the sewage pump through the docking pipe. When the two-wheel cleaner needs to change direction, the body can achieve a turning effect with the docking pipe as the axis at the position where the docking pipe is connected to the connecting pipe.

[0004] In view of the above related technologies, there are gaps at the rotatable connection positions of the docking pipe and the sewage inlet pipe. When gravel and crushed stones carried in the dirt get stuck in the gap between the docking pipe and the sewage inlet pipe, it is easy to cause the docking pipe and the sewage inlet pipe to be unable to rotate smoothly, and even cause the body to malfunction. Content of the Utility Model

[0005] In order to improve the problem that dirt easily enters between the docking pipe and the sewage inlet pipe and improve the smoothness of the relative rotation between the docking pipe and the sewage inlet pipe, the present application provides a two-wheel cleaner.

[0006] The two-wheel cleaner provided by the present application adopts the following technical solutions:

[0007] A two-wheel cleaner includes an outer shell, a connecting sleeve shell arranged inside the outer shell, a connecting pipe integrally arranged on the connecting sleeve shell and communicating with the inside of the connecting sleeve shell, a docking pipe rotatably connected to the connecting pipe and used for externally connecting a sewage pump, an anti-disengagement ring fixedly connected to the outside of the connecting pipe to prevent the docking pipe from disengaging. A sand-proof ring is sleeved on the outer wall of the docking pipe at the position where it is connected to the connecting pipe. First and second limiting ring plates are fixedly connected to and arranged at intervals on the outer wall of the docking pipe. The second limiting ring plate is located at the end position of the docking pipe and is parallel to the first limiting ring plate. Limiting ring grooves for the sand-proof ring to be inserted into are jointly formed by the two side surfaces of the first limiting ring plate and the second limiting ring plate close to each other and the outer wall of the docking pipe. The sand-proof ring is inserted into the limiting ring groove and abuts against the inner wall of the connecting pipe.

[0008] By adopting the above technical solution, a sand prevention ring is provided at the position where the butt joint pipe is connected to the connecting pipe. The sand prevention ring is snapped into the limiting ring groove formed by the first limiting ring plate and the second limiting ring plate and abuts against the inner wall of the connecting pipe, effectively preventing sundries such as gravel in the dirt from getting stuck in the gap between the butt joint pipe and the connecting pipe. The first limiting ring plate and the second limiting ring plate provide a stable snapping position for the sand prevention ring, enhancing the structural stability of the connection between the butt joint pipe and the connecting pipe. The sand prevention ring prevents dirt from entering the gap, reduces the frictional resistance between the butt joint pipe and the connecting pipe, enables the butt joint pipe to rotate more smoothly when rotation is required, and reduces the risk of difficult rotation or machine failure caused by dirt getting stuck.

[0009] Further, the number of the sand prevention rings is several. A plurality of convex rings are arranged at equal intervals between the first limiting ring plate and the second limiting ring plate. Each of the convex rings is fixedly connected to the outer wall of the butt joint pipe and is parallel to each other. A plurality of limiting ring grooves for the sand prevention rings to snap into one by one are respectively formed between the first limiting ring plate, the second limiting ring plate and each of the convex rings.

[0010] By adopting the above technical solution, by arranging a plurality of convex rings at equal intervals between the first limiting ring plate and the second limiting ring plate, and fixing these convex rings to the outer wall of the butt joint pipe and making them parallel to each other, a plurality of limiting ring grooves are formed between the first limiting ring plate, the second limiting ring plate and each convex ring. Each limiting ring groove can snap into a sand prevention ring, thereby realizing multiple sand prevention, enabling the gap between the butt joint pipe and the connecting pipe to be more comprehensively covered and protected, further preventing sundries such as gravel in the dirt from getting stuck, and improving the sand prevention effect. The multiple sand prevention rings share the pressure and friction between the butt joint pipe and the connecting pipe, reduce the wear of a single sand prevention ring, and thus extend the overall service life.

[0011] Further, relief grooves are respectively provided on the upper and lower sides of the sand prevention ring, and the relief grooves are arranged on the side of the sand prevention ring close to the inner wall of the connecting pipe.

[0012] By adopting the above technical solution, the setting of the relief grooves reduces the contact area between the sand prevention ring and the inner wall of the connecting pipe, reduces the friction between the two, enables the sand prevention ring to rotate more smoothly, also reduces the wear, and improves its durability.

[0013] Further, a limiting convex portion for the second limiting ring plate to abut against is coaxially provided on the inner wall of the connecting pipe. The width of the first limiting ring plate is greater than the width of the second limiting ring plate. When the second limiting ring plate abuts against the upper side of the limiting convex portion, the first limiting ring plate abuts against the end face of the connecting pipe.

[0014] By adopting the above technical solution, the limiting convex part abuts against the second limiting ring plate, and the first limiting ring plate abuts against the end face of the connecting pipe, forming two limiting structures. When the docking pipe is connected to the connecting pipe, the installation depth of the connecting pipe can be limited to prevent the over-insertion of the docking pipe. The relatively wide width of the first limiting ring plate enables a larger contact area to be formed when it abuts against the end face of the connecting pipe, optimizing the limiting effect, further preventing the accidental movement of the docking pipe, and improving the connection stability between the docking pipe and the connecting pipe.

[0015] Further, a first arc-shaped guiding surface is provided on the side of the limiting convex part away from the docking pipe.

[0016] By adopting the above technical solution, the limiting convex part is located at the connection position between the connecting pipe and the connecting sleeve housing, where the flow rate changes greatly, so the phenomenon of dirt hanging on the wall is likely to occur. When dirt passes through, the limiting convex part is smoothly connected to the inner wall of the connecting pipe at the position below the first arc-shaped guiding surface, providing a smooth passage for the dirt to prevent the hanging-on-the-wall phenomenon, thereby reducing the probability of sand and gravel entering the gap between the pipe walls.

[0017] Further, a second arc-shaped guiding surface is provided on the inner wall of the docking pipe near the limiting convex part.

[0018] By adopting the above technical solution, the second arc-shaped guiding surface is located on the inner wall of the docking pipe, enabling a smooth connection effect to be formed between the docking pipe and the connecting pipe through the first arc-shaped guiding surface and the second arc-shaped guiding surface, providing a smooth passage for the dirt to pass through, reducing the probability of sand and gravel entering the gap between the pipe walls, and improving the sand prevention effect.

[0019] Further, the anti-disengagement ring has an integrally connected connecting part and a limiting part. The connecting part is sleeved and threadedly connected to the outer wall of the connecting pipe. A step for the lower side end face of the connecting part to abut against is circumferentially provided on the outer wall of the connecting pipe. The limiting part is perpendicular to the connecting part and is limited above the first limiting ring plate.

[0020] By adopting the above technical solution, the connecting part is sleeved on the outer wall of the connecting pipe and is threadedly connected. A step for the lower side end face of the connecting part to abut against is circumferentially provided on the outer wall of the connecting pipe, enabling the connecting part to be accurately positioned during installation and closely fitted on the connecting pipe, and not easily loosening or falling off. The limiting part is perpendicular to the connecting part and is located above the first limiting ring plate, providing a certain support and stability for the docking pipe. When the docking pipe rotates or is in use, the limiting part can effectively limit its upward movement, thereby ensuring the tight connection between the docking pipe and the connecting pipe and preventing the docking pipe from disengaging from the connecting pipe.

[0021] Further, the diameter of the docking pipe gradually decreases from the end connected to the connecting pipe to the end away from the connecting pipe.

[0022] By adopting the above technical solution, the diameter of the butt joint pipe gradually decreases, facilitating the sleeving of the pipeline of the sewage pump on one end of the butt joint pipe far from the connecting pipe, thereby improving the stability of pipeline connection.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting a sand prevention ring at the connection position between the connecting pipe and the butt joint pipe, a preliminary sand prevention effect is achieved. By arranging a plurality of convex rings between the first limiting ring plate and the second limiting ring plate to form a plurality of limiting ring grooves, and one sand prevention ring can be clamped in each groove, thereby achieving a multiple sand prevention effect, comprehensively covering and protecting the gap between the butt joint pipe and the connecting pipe, and effectively preventing sundries such as gravel and crushed stones in the dirt from being clamped in;

[0025] 2. The setting of the material reduction groove reduces the contact area between the sand prevention ring and the inner wall of the connecting pipe, reduces friction, makes the sand prevention ring rotate more smoothly, and improves durability;

[0026] 3. The limiting convex part abuts against the second limiting ring plate, and the first limiting ring plate abuts against the end face of the connecting pipe, forming two limiting structures to limit the installation depth of the connecting pipe, preventing the over-insertion of the butt joint pipe. When the first limiting ring plate with a larger width abuts against the end face of the connecting pipe, a larger contact area can be formed, optimizing the limiting effect and further preventing the accidental movement of the butt joint pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is an overall structural schematic diagram of a double-wheel cleaner according to an embodiment of the present application.

[0028] Figure 2 is a sectional structural schematic diagram of a double-wheel cleaner according to an embodiment of the present application.

[0029] Figure 3 is an exploded structural schematic diagram of a connection housing, a butt joint pipe and an anti-disconnection ring according to an embodiment of the present application.

[0030] Figure 4 is a sectional schematic diagram of a connection housing, a butt joint pipe and an anti-disconnection ring according to an embodiment of the present application.

[0031] Figure 5 is Figure 4 a magnified structural schematic diagram of the connecting pipe, the butt joint pipe, the sand prevention ring and the anti-disconnection ring in part A in

[0032] Description of reference numerals: 1. Outer housing; 2. Connecting sleeve housing; 3. Connecting pipe; 31. Limiting convex part; 311. First arc-shaped guiding surface; 32. Step; 4. Docking pipe; 41. First limiting ring plate; 42. Second limiting ring plate; 43. Convex ring; 44. Limiting ring groove; 45. Second arc-shaped guiding surface; 5. Anti-disengagement ring; 51. Connecting part; 52. Limiting part; 6. Anti-sand ring; 61. Material-reducing groove. Detailed implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the Figures 1-5 accompanying drawings and embodiments.

[0034] An embodiment of the present application discloses a double-wheel cleaner. In this embodiment, words used to express positional relationships such as "upper" and "lower" are determined with reference to the placement and installation positions of the double-wheel cleaner in its normal use state.

[0035] Referring to Figure 1 and Figure 2 , the double-wheel cleaner includes an outer housing 1, a connecting sleeve housing 2, a docking pipe 4 and an anti-disengagement ring 5. The outer housing 1 is used to enclose the internal components of the machine body and is provided with walking wheels on the outside. A connecting sleeve housing 2 is provided inside the outer housing 1. The connecting sleeve housing 2 is integrally connected with a connecting pipe 3 communicating with the inside above. The docking pipe 4 is inserted into the connecting pipe 3 and is rotatably connected to the connecting pipe 3.

[0036] Referring to Figure 3 , the anti-disengagement ring 5 has a connecting part 51 and a limiting part 52 that are perpendicular to each other and integrally connected. The center position of the limiting part 52 is penetrated by the docking pipe 4. The connecting part 51 is sleeved outside the connecting pipe 3. The docking pipe 4 is connected to the connecting sleeve housing 2 through the connecting pipe 3. The connecting part 51 of the anti-disengagement ring 5 is threadedly connected to the connecting pipe 3 and limits the docking pipe 4 through the limiting part 52 to prevent the docking pipe 4 from disengaging from the connecting pipe 3.

[0037] Referring to Figure 4 and Figure 5 , a first limiting ring plate 41 and a second limiting ring plate 42 are arranged at intervals on the outer wall of the docking pipe 4 and are vertically and fixedly connected. The second limiting ring plate 42 is located at the end of the docking pipe 4 close to the connecting pipe 3. The width of the first limiting ring plate 41 is greater than the width of the second limiting ring plate 42.

[0038] Parallel and equidistant convex rings 43 are arranged between the first limiting ring plate 41 and the second limiting ring plate 42. Three limiting ring grooves 44 of equal size are respectively formed between the first limiting ring plate 41, the second limiting ring plate 42 and the two convex rings 43. Anti-sand rings 6 are respectively and correspondingly embedded in the respective limiting ring grooves 44.

[0039] The sand control ring 6 is embedded in the limit ring groove 44 and is tightly abutted against the outer wall of the butt joint pipe 4. The sand control ring 6 is symmetrically provided with material reduction grooves 61 on the upper and lower sides of the outer peripheral wall, so as to achieve the effect that the thickness of the outer peripheral wall of the sand control ring 6 is smaller than that of the inner peripheral wall. When the butt joint pipe 4 is inserted into the connecting pipe 3, the outer peripheral walls of the sand control rings 6 are all abutted against the inner wall of the connecting pipe 3, so as to form a multiple sand control effect and prevent sand and gravel from entering the gap between the connecting pipe 3 and the butt joint pipe 4.

[0040] The inner wall of the connecting pipe 3 is circumferentially provided with a limit convex portion 31. When the butt joint pipe 4 is connected to the inside of the connecting pipe 3, the upper end surface of the limit convex portion 31 abuts against the lower side of the second limit ring plate 42, and the lower side of the first limit ring plate 41 abuts against the upper end surface of the connecting pipe 3.

[0041] The outer wall of the connecting pipe 3 is circumferentially provided with a step 32. When the anti - detachment ring 5 is threadedly connected to the outside of the connecting pipe 3, the lower end surface of the connecting portion 51 of the anti - detachment ring 5 abuts against the step 32, and the limiting portion 52 of the anti - detachment ring 5 is located above the first prior - inquiry ring plate to prevent the butt joint pipe 4 from coming out.

[0042] The limit convex portion 31 is circumferentially provided with a first arc - shaped guiding surface 311 on the side far from abutting against the butt joint pipe 4. The inner wall of the butt joint pipe 4 is circumferentially provided with a second arc - shaped guiding surface 45 near one end close to the connecting pipe 3. At the connection position of the connecting pipe 3 and the butt joint pipe 4, a smooth transition effect is formed through the first arc - shaped guiding surface 311 and the second arc - shaped guiding surface 45, preventing the sand and gravel in the dirt from accumulating at the connection position, thereby avoiding the sand and gravel from entering the gap between the connecting pipe 3 and the butt joint pipe 4, which is beneficial to improving the smoothness of the relative rotation between the butt joint pipe 4 and the sewage inlet pipe.

[0043] The implementation principle of a double - wheel cleaner in an embodiment of the present application is as follows: The double - wheel cleaner mainly consists of a housing 1, a connecting sleeve 2, a butt joint pipe 4 and an anti - detachment ring 5. A connecting sleeve 2 is arranged inside the housing 1, and a connecting pipe 3 communicating with the inside is integrally connected above the connecting sleeve 2. The butt joint pipe 4 is inserted into the connecting pipe 3 and is rotatably connected to the connecting pipe 3.

[0044] The outer wall of the butt joint pipe 4 is fixedly connected with a first limit ring plate 41 and a second limit ring plate 42, and equidistant convex rings 43 are arranged between the two, forming a plurality of limit ring grooves 44. Each limit ring groove 44 is respectively embedded with a sand control ring 6, and the outer peripheral wall of the sand control ring 6 abuts against the inner wall of the connecting pipe 3 to achieve a multiple sand control effect.

[0045] The anti - detachment ring 5 has a connecting portion 51 and a limiting portion 52. The connecting portion 51 is sleeved outside the connecting pipe 3 and is threadedly connected to the connecting pipe 3. The limiting portion 52 is located above the first limit ring plate 41 and is used to prevent the butt joint pipe 4 from coming out of the connecting pipe 3.

[0046] The inner wall of the connecting pipe 3 is provided with a limiting convex part 31. When the docking pipe 4 is connected to the inside of the connecting pipe 3, the limiting convex part 31 abuts against the second limiting ring plate 42, and the first limiting ring plate 41 abuts against the upper end surface of the connecting pipe 3, forming two limiting structures to limit the installation depth of the docking pipe 4.

[0047] The limiting convex part 31 and the docking pipe 4 are respectively provided with a first arc-shaped guiding surface 311 and a second arc-shaped guiding surface 45 on the side far from the abutting position. The two form a smooth transition effect at the connection position, enabling the sewage to flow smoothly, preventing the sand and gravel in the sewage from accumulating at the connection position, avoiding the sand and gravel from entering the gap, and improving the smoothness of the relative rotation between the docking pipe 4 and the connecting pipe 3.

[0048] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A double-wheel cleaner, comprising an outer shell (1), a connecting shell (2) arranged inside the outer shell (1), a connecting pipe (3) integrally arranged on the connecting shell (2) and communicating with the inside of the connecting shell (2), a butt joint (4) rotatably connected to the connecting pipe (3) and used for externally connecting a sewage pump, and an anti-slip ring (5) fixedly connected to the outside of the connecting pipe (3) and preventing the butt joint (4) from slipping out, characterized in that: The butt joint tube (4) is sleeved with a sand-proof ring (6) on its outer wall at the position where it is connected to the connecting tube (3); a first limiting ring plate (41) and a second limiting ring plate (42) are fixedly connected and arranged at intervals on the outer wall of the butt joint tube (4); the second limiting ring plate (42) is located at the end position of the butt joint tube (4) and is parallel to the first limiting ring plate (41); the two side surfaces of the first limiting ring plate (41) and the second limiting ring plate (42) close to each other and the outer wall of the butt joint tube (4) together form a limiting ring groove (44) for the sand-proof ring (6) to be inserted into; the sand-proof ring (6) is inserted into the limiting ring groove (44) and abuts against the inner wall of the connecting tube (3).

2. A double-wheel cleaner according to claim 1, characterized in that: The number of the sand-proof rings (6) is several, and a plurality of convex rings (43) are arranged at equal intervals between the first limiting ring plate (41) and the second limiting ring plate (42). Each of the convex rings (43) is fixedly connected to the outer wall of the butt-jointed tube (4) and is parallel to each other. A plurality of limiting ring grooves (44) for the sand-proof rings (6) to be inserted into one by one are formed between the first limiting ring plate (41), the second limiting ring plate (42) and each of the convex rings (43).

3. A double-wheel cleaner according to claim 1, characterized in that: The upper and lower sides of the sand-proof ring (6) are respectively provided with material-reducing grooves (61), and the material-reducing grooves (61) are arranged on one side of the sand-proof ring (6) close to the inner wall of the connecting pipe (3).

4. A double-wheel cleaner according to claim 1, characterized in that: A limiting protrusion (31) for abutting the second limiting ring plate (42) is coaxially provided on the inner wall of the connecting tube (3); the width of the first limiting ring plate (41) is greater than the width of the second limiting ring plate (42); when the second limiting ring plate (42) abuts against the upper side of the limiting protrusion (31), the first limiting ring plate (41) abuts against the end surface of the connecting tube (3).

5. A double-wheel cleaner according to claim 4, characterized in that: The limiting protrusion (31) is provided with a first arc-shaped guiding surface (311) on a side away from the butt joint tube (4).

6. A double-wheel cleaner according to claim 4, characterized in that: The inner wall of the butt joint pipe (4) is provided with a second arc-shaped guiding surface (45) at a position close to the limiting protrusion (31).

7. A double-wheel cleaner according to claim 1, characterized in that: The anti-slip ring (5) comprises an integrally connected connecting portion (51) and a limiting portion (52); the connecting portion (51) is sleeved and threadedly connected to the outer wall of the connecting pipe (3); a step (32) is circumferentially provided on the outer wall of the connecting pipe (3) for the lower end face of the connecting portion (51) to abut against; the limiting portion (52) is perpendicular to the connecting portion (51) and is limited above the first limiting ring plate (41).

8. A double-wheel cleaner according to claim 1, characterized in that: The diameter of the butt joint pipe (4) gradually decreases from an end connected to the connecting pipe (3) to an end away from the connecting pipe (3).

Images