Automatic pool cleaning device

Abstract

This application provides an automatic water tank cleaning device, which includes a body, a roller brush assembly disposed on the body, a drive assembly, and a protective shell. The drive assembly includes a drive member, a first transmission structure connected to the drive member, and a second transmission structure driven by the first transmission structure and driving the roller brush assembly to rotate. The protective shell at least partially covers the first transmission structure and the second transmission structure to prevent impurities from entering the transmission structures.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and in particular to an automatic cleaning device for water tanks. Background Technology

[0002] Pool cleaning robots typically consist of a wheel assembly and a drive assembly. The drive assembly propels the robot across areas such as the pool bottom and walls. However, the transmission structure of the walking motors in existing pool cleaning robots is usually open or uses only a simple shielding structure, which cannot effectively prevent impurities such as sand or pebbles from entering the gear meshing gaps of the drive assembly. When impurities enter the gear meshing gaps, they obstruct gear operation and trigger the pool cleaning robot's overload protection mechanism. Moreover, removing impurities from the gear meshing gaps often requires disassembling the wheel assembly, which is not only time-consuming and labor-intensive but may also cause secondary damage to the wheel assembly and drive assembly. Summary of the Invention

[0003] In view of the above-mentioned deficiencies of the prior art, this application provides an automatic water tank cleaning device, which aims to solve the technical problem that the existing automatic water tank cleaning devices cannot effectively prevent impurities from entering the transmission structure.

[0004] This application provides an automatic water tank cleaning device, which includes: ontology; The roller brush assembly is disposed on the main body; Driver components, including: A driving component is disposed on the body; A first transmission structure is connected to the driving component; The second transmission structure is connected to the first transmission structure and drives the roller brush assembly to rotate; A protective shell that at least partially covers the first transmission structure and the second transmission structure.

[0005] Furthermore, a first gap is formed between the inner surface of the protective shell and the first outer surface of the transmission component of the first transmission structure; and / or A second gap is formed between the inner surface of the protective shell and the second outer surface of the transmission component of the second transmission structure.

[0006] Furthermore, the automatic water tank cleaning device also includes: The wheel assembly has a through hole in the protective shell, through which it can be connected to the first transmission structure.

[0007] Furthermore, the main body includes a chassis, the first transmission structure and the second transmission structure are rotatably mounted on the chassis, the chassis, the wheel assembly and the protective shell together form an isolation space, and the first transmission structure and the second transmission structure are accommodated in the isolation space.

[0008] Furthermore, the automatic water tank cleaning device also includes: A third transmission structure, at least partially housed within the protective housing, is capable of drivingly connecting the wheel assembly and the first transmission structure through the through-hole.

[0009] Furthermore, the third transmission structure includes a first transmission part, which is capable of being connected to the wheel assembly via the through hole, and the third outer surface of the first transmission part is adapted to the inner surface of the through hole; or The wheel assembly includes a first connecting portion, which is capable of being connected to the third transmission structure via the through hole, and the fourth outer surface of the first connecting portion is adapted to the inner surface of the through hole.

[0010] Furthermore, the main body includes a chassis, and the first transmission structure and the second transmission structure are rotatably mounted on the chassis; The third transmission structure further includes a second connecting part, which is connected to the protective shell. The chassis, the wheel assembly, the protective shell, and the third transmission structure together form an isolation space, in which the first transmission structure and the second transmission structure are accommodated.

[0011] Furthermore, the protective shell is detachably connected to the main body.

[0012] Furthermore, the protective shell is provided with a first flange, and the body is provided with a second flange, with the first flange and the second flange being configured to cooperate.

[0013] Furthermore, the body includes a front portion and a rear portion; The wheel assembly of the automatic pool cleaning device includes a first wheel located at the front and a second wheel located at the rear. The second transmission structure includes a first sub-transmission structure disposed at the front and a second sub-transmission structure disposed at the rear; The protective shell includes a first protective shell disposed at the front and a second protective shell disposed at the rear. The first protective shell covers the first wheel, the first transmission structure, and the first sub-transmission structure, and the second protective shell covers the second wheel and the second sub-transmission structure.

[0014] Furthermore, the automatic water tank cleaning device also includes: A protective cover is provided on the first wheel, the second wheel, the first transmission structure, the first sub-transmission structure, the second sub-transmission structure, the first protective shell, and the second protective shell.

[0015] Furthermore, both the first transmission structure and the second transmission structure include at least one gear; The protective shell includes multiple receiving portions, and at least one of the gears is received in one of the receiving portions.

[0016] In this application, the automatic water tank cleaning device includes a main body, a roller brush assembly disposed on the main body, a drive assembly, and a protective shell. The drive assembly includes a drive component, a first transmission structure connected to the drive component, and a second transmission structure that is drively connected to the first transmission structure and drives the roller brush assembly to rotate. The protective shell at least partially covers the first and second transmission structures to prevent impurities from entering the transmission structures, thereby ensuring stable operation of the drive assembly. Attached Figure Description

[0017] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an automatic water tank cleaning device provided in an embodiment of this application.

[0019] Figure 2 for Figure 1 The side view of the automatic water tank cleaning device after the protective cover has been removed.

[0020] Figure 3 for Figure 1 An exploded view of part of the structure of the automatic water tank cleaning device shown.

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0023] Figure 6 for Figure 1 The diagram shows a cross-sectional view of the automatic cleaning device for the water tank, along with an enlarged view of a portion of the area.

[0024] Figure 7 for Figure 1Another cross-sectional view of the automatic cleaning device for the pool is shown, along with an enlarged view of a portion of the area.

[0025] Figure 8 for Figure 3 The diagram shows the structure of the first protective shell.

[0026] Figure 9 for Figure 3 The diagram shows a structural schematic of the first protective shell from another angle.

[0027] Figure 10 for Figure 3 The diagram shows the structure of the second protective shell.

[0028] Figure 11 for Figure 3 The diagram shows a second protective shell from another angle.

[0029] Figure 12 for Figure 3 The diagram shows the structure of the third transmission structure.

[0030] Figure 13 for Figure 3 The diagram shows a third transmission structure from another angle.

[0031] Figure 14 yes Figure 3 The diagram shows the structure of the wheel.

[0032] Figure 15 yes Figure 3 A structural diagram of the wheel from another angle.

[0033] Figure 16 yes Figure 3 The diagram shows the structure of the protective cover.

[0034] Figure 17 yes Figure 3 The diagram shows the structural structure of the chassis.

[0035] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] The technical solutions in this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0037] Please see Figures 1-17 , this application provides an automatic pool cleaning device 100, which can clean the waters of pools, swimming pools, etc.

[0038] The automatic pool cleaning device 100 can move and clean on the bottom, wall or surface of the pool. The automatic pool cleaning device 100 includes a detachable trash basket (not shown), a water inlet (not shown), a water outlet (not labeled), and a rotary brush assembly 30. The rotary brush assembly 30 can clean the bottom and wall of the pool. When the automatic pool cleaning device 100 travels, water flow and trash can enter the trash basket from the water inlet, and after filtration, the water flow flows out from the water outlet, and the trash remains in the trash basket.

[0039] See Figures 1 to 3 , the automatic pool cleaning device 100 includes a body 10, the above-mentioned rotary brush assembly 30 provided on the body 10, a driving assembly 40 and a protective shell 50. The driving assembly 40 includes a driving member 41, a first transmission structure 42 connected to the driving member 41, and a second transmission structure 43 that is in transmission connection with the first transmission structure 42 and drives the rotary brush assembly 30 to rotate. The protective shell 50 at least partially covers the first transmission structure 42 and the second transmission structure 43 to prevent impurities from entering the transmission structure, so that the driving assembly 40 can operate stably.

[0040] See Figures 4 to 7 , a first gap 5011 is formed between the inner surface 501 of the protective shell 50 and the first outer surface 401 of the transmission member of the first transmission structure 42; a second gap 5012 is formed between the inner surface 501 of the protective shell 50 and the second outer surface 402 of the transmission member of the second transmission structure 43. The first gap 5011 and the second gap 5012 provide a heat dissipation space while preventing the protective shell 50 from rubbing and interfering with the rotating first transmission structure 42 and second transmission structure 43.

[0041] See Figure 1 , Figure 3 and Figures 8 to 11 , the automatic pool cleaning device 100 further includes a wheel assembly 20. The protective shell 50 is provided with a through hole 502, and the wheel assembly 20 can be in transmission connection with the first transmission structure 42 via the through hole 502.

[0042] The wheel assembly 20 usually has two and is provided on the left and right sides of the body 10; the rotary brush assembly 30 usually has two and is provided at the front and rear ends of the body 10.

[0043] See Figures 2 to 5, the body 10 includes a chassis 11, a front part 12, a rear part 13, a left side 14, and a right side 15. The wheel assembly 20 includes a first wheel 21a provided at the front part 12, a second wheel 21b provided at the rear part 13, and a crawler 22 sleeved on the first wheel 21a and the second wheel 21b. Support parts 111 are respectively provided at the front and rear ends of the left side 14 and the right side 15 of the chassis 11, and the support parts 111 are used for installing the first wheel 21a and the second wheel 21b.

[0044] The first transmission structure 42 and the second transmission structure 43 are rotatably provided on the chassis 11, and the chassis 11, the wheel assembly 20, and the protective housing 50 together form an isolation space 110 (see Figure 6 ), and the first transmission structure 42 and the second transmission structure 43 are accommodated in the isolation space 110. The isolation space 110 can effectively filter and block impurities such as sand or stones in the external environment from entering the transmission structure, such as entering the meshing area of the transmission rod gears, and at the same time allows heat to dissipate moderately.

[0045] See Figure 2 and Figure 3 , the automatic pool cleaning device 100 further includes a third transmission structure 60. The third transmission structure 60 is at least partially accommodated in the protective housing 50, and the third transmission structure 60 can transmit and connect the wheel assembly 20 and the first transmission structure 42 through the through hole 502.

[0046] The third transmission structure 60 can be sleeved on the front end of the support part 111. The third transmission structure 60 is at least partially accommodated in the protective housing 50, and the third transmission structure 60 can transmit and connect the wheel assembly 20 and the first transmission structure 42 through the through hole 502. Specifically, the third transmission structure 60 installed at the front end of the body 10 is used for transmitably connecting the first wheel 21a and the first sub-transmission structure 43a; the third transmission structure 60 installed at the rear end of the body 10 is used for transmitably connecting the second wheel 21b and the second sub-transmission structure 43b.

[0047] In some embodiments, as Figure 3 , Figure 12 and Figure 13 shown, the third transmission structure 60 further includes a first transmission part 61. The first transmission part 61 can transmit and connect with the wheel assembly 20 through the through hole 502, and the third outer surface 611 of the first transmission part 61 is adapted to the inner surface of the through hole 502, so as to prevent impurities from entering the isolation space 110 through the gap between the third outer surface 611 and the inner surface of the through hole 502.

[0048] In some embodiments, as Figure 3 , Figure 14 and Figure 15 As shown, the wheel assembly 20 includes a first connecting portion 211. The first connecting portion 211 can be in transmission connection with the third transmission structure 60 through a through hole 502. The fourth outer surface 2111 of the first connecting portion 211 is adapted to the inner surface of the through hole 502, preventing impurities from entering the isolation space 110 through the gap between the fourth outer surface 2111 and the inner surface of the through hole 502.

[0049] The third transmission structure 60 further includes a second connecting portion 62, and the second connecting portion 62 is connected to the protective housing 50. The third transmission structure 60 is further provided with a second transmission portion 63. The second connecting portion 62 is connected to the protective housing 50. The chassis 11, the wheel assembly 20, the protective housing 50, and the third transmission structure 60 together form an isolation space 110, and the first transmission structure 42 and the second transmission structure 43 are accommodated in the isolation space 110. The isolation space 110 can effectively filter and block impurities such as sand or gravel in the external environment from entering the transmission structure, such as entering the meshing area of the transmission rod gears, and at the same time allows heat to dissipate moderately.

[0050] The first transmission portion 61 and the second transmission portion 63 can be located on both sides of the third transmission structure 60 so as to be respectively connected to the wheel 21 and the first transmission structure. Neither the first transmission portion 61 nor the second transmission portion 63 protrudes beyond the second connecting portion 62, preventing the first transmission portion 61 and the second transmission portion 63 from affecting the connection between the second connecting portion 62 and the protective housing 50. That is, the sizes of both the first transmission portion 61 and the second transmission portion 63 are smaller than the size of the second connecting portion 62. The outer surface of the second connecting portion 62 is preferably a smooth curved surface.

[0051] The first transmission portion 61 can be an internal gear, meshing with the gear of the first transmission structure 42 to rotate following the first transmission structure 42; the second transmission portion 63 can be an external gear, and the first connecting portion 211 of the wheel 21 can be an internal gear, and the second transmission portion 63 meshes with the first connecting portion 211 to drive the wheel 21 to rotate.

[0052] The third transmission structure 60 further includes a through hole 601. The support portion 111 can extend out of the through hole 502 and the through hole 601. The wheel assembly 20 and the third transmission structure 60 are rotatably sleeved on the support portion 111, and the support portion 111 can provide support for the rotation of the third transmission structure 60 and the wheel assembly 20.

[0053] Refer Figures 3 to 5 , the second transmission structure 43 includes a first sub-transmission structure 43a provided at the front portion 12 and a second sub-transmission structure 43b provided at the rear portion 13. The first transmission structure 42, the first sub-transmission structure 43a, and the second sub-transmission structure 43b can all be transmission structures.

[0054] Both the first transmission structure 42 and the second transmission structure 43 include at least one gear; the protective housing 50 includes a plurality of accommodating portions 51 (see Figures 8 to 9 ), and at least one of the gears is accommodated in one of the accommodating portions 51.

[0055] Of course, the first transmission structure 42 and the second transmission structure 43 may also be other forms of transmission members, such as a link structure, etc., and the present application does not limit this.

[0056] See Figure 3 , the protective housing 50 includes a first protective housing 50a provided at the front portion 12 and a second protective housing 50b provided at the rear portion 13. The first protective housing 50a covers the first wheel 21a, the first transmission structure 42, and the first sub-transmission structure 43a; the second protective housing 50b covers the second wheel 21b and the second sub-transmission structure 43b. The transmission structures at the front portion 12 and the rear portion can be protected respectively, and impurities such as sand or stones can be effectively prevented from entering the transmission structure.

[0057] The protective housing 50 is detachably connected to the body 10, so as to facilitate operations such as maintenance or replacement of the transmission structure therein after the protective housing 50 is removed.

[0058] The protective housing 50 is provided with a first flanging 52 (see Figure 8 ), the chassis 11 of the body 10 is provided with a second flanging 113 (see Figure 4 ), and the first flanging 52 and the second flanging 113 cooperate with each other to seal the area where the gear assembly is located.

[0059] Specifically, a second flanging 113 is provided at the periphery of the accommodating area 112 of the chassis 11, and the first flanging 52 covers the back surface of the accommodating area 112 and houses the second flanging 113 therein. That is to say, the protective housing 50 is detachably wrapped and covers the outside of the transmission structure, acting as a dust cover; the dust cover has an embedding interface adapted to the back gears of the first wheel 21a and the second wheel 21b. When installed in place, the dust cover and the corresponding structures of the back gears of the first wheel 21a and the second wheel 21b are perfectly embedded and tightly combined, so as to jointly form a basically sealed isolation space 110 that completely wraps the transmission structure therein.

[0060] In addition, the first protective case 50 can be made of wear-resistant material, and a preset gap is reserved between the inner side wall of the protective case 50 and the outer side walls of the transmission structures, so as to prevent friction interference between the transmission structures and the protective case 50 during rotation. The protective case 50 can be fixed to the chassis 11 by means of connection such as bolts, that is, the protective case 50 will not rotate relative to the chassis 11, reducing the influence of external interference on the operation of the gear assembly or the transmission structures. The inner wall shape of the protective case 50 basically conforms to the outer contour of the transmission structures, so as to maximize the use of space and reduce internal dust accumulation.

[0061] Refer Figure 3 and Figure 16 The automatic pool cleaning device 100 further includes a protective cover 70. The protective cover 70 covers the first wheel 21a, the second wheel 21b, the first transmission structure 42, the first sub-transmission structure 43a, the second sub-transmission structure 43b, the first protective case 50a and the second protective case 50b to further protect the wheel assembly 20 and the drive assembly 40 and further prevent impurities such as sand or stones from entering the transmission structure.

[0062] Hereinafter, the specific structure and drive principle of the drive assembly 40, the specific structure of the protective case 50, the specific structure of the third transmission structure 60, the cooperation mode of the drive assembly 40 with the protective case 50 and the wheel assembly 20, and the assembly mode of the wheel assembly 20 with the protective case 50 and the protective cover 70 will be described in detail.

[0063] As Figures 3 to 5 shown, connecting teeth 221 are arranged at intervals on the inner surface of the crawler 22 of the wheel assembly 20. The crawler 22 is engaged with the connecting teeth 212 outside the first wheel 21a and the second wheel 21b through the connecting teeth 221, realizing the transmission connection between the first wheel 21a, the second wheel 21b and the crawler 22. The first wheel 21a and the second wheel 21b can be respectively accommodated in the internal space of the crawler 22 and are respectively installed at the top of the support parts 111 at the front part 12 and the rear part 13 of the main body 10.

[0064] As Figures 3 to 5As shown, the first transmission structure 42 is connected to the drive member 41 and is used to transmit the power of the drive member 41 to the wheel assembly 20. The second transmission structure 43 is connected to the first transmission structure 42. The drive member 41 may be a motor, with an output shaft 411 at one end, and the first transmission structure 42 is sleeved on the outer periphery of the output shaft 411. The first transmission structure 42 includes a first gear 421 and a second gear 422. The first gear 421 further includes a first gear portion 4211 and a second gear portion 4212 stacked together. The size of the second gear portion 4212 is smaller than that of the first gear portion 4211 to avoid interference from the support portion 111. Both the first gear portion 4211 and the second gear portion 4212 rotate under the drive of the output shaft 411. The second gear 422 is located between the first gear 421 and the second transmission structure 43 and is rotatably sleeved on the support portion 111. The second gear 422 meshes with the first gear portion 4211 of the first gear 421 and rotates in the opposite direction to the first gear portion 4211 under the drive of the first gear portion 4211. The third transmission structure 60 is rotatably mounted on the support portion 111 and meshes with the second gear portion 4212 of the first gear 421. The third transmission structure 60 is also connected to the first wheel 21a. During rotation, the first wheel 21a drives the second wheel 21b to rotate together via the track 22. The first sub-transmission structure 43a includes a third gear 431 and a fourth gear 432 that mesh with each other. The third gear 431 is connected to the second gear 422 and rotates in the same direction as the track 22 under the drive of the second gear 422. The fourth gear 432 meshes with the third gear 431 and rotates under the drive of the third gear 431. The fourth gear 432 is mounted on the roller shaft (not shown) of the roller brush assembly 30 at the front portion 12 of the body 10 and drives the roller brush assembly 30 to rotate. The third sub-transmission structure 43b includes a fifth gear 441 and a sixth gear 442 that mesh with each other. The fifth gear 441 meshes with the third transmission structure 60, and the sixth gear 442 is mounted on the roller shaft (not shown) of the brush assembly 30 at the rear of the body 10. During rotation, the track 22 drives the second wheel 21b at the rear end to rotate, and the second wheel 21b further drives the third transmission structure 60 to rotate. During rotation, the third transmission structure 60 drives the fifth gear 441 to rotate, and the fifth gear 441 drives the meshing sixth gear 442 to rotate, thereby driving the brush assembly 30 at the rear of the body 13 to rotate.

[0065] like Figure 17As shown, the receiving areas 112 on both sides of the chassis 11 are further provided with through holes 1121, through holes 1122, and support portions 1123. At the front end of the body 10, the support portion 1123 is used to fix the third gear 431, the through hole 1121 is used to install the first transmission structure 42, and the through hole 1122 is used for the roller shaft of the roller brush assembly 30 to pass through and for installing the fourth gear 432; at the rear end of the body 10, the support portion 1123 is used to fix the fifth gear 441, and the through hole 1122 is used for the roller shaft of the roller brush assembly 30 to pass through and for installing the sixth gear 442.

[0066] like Figure 3 , Figures 8 to 9 As shown, the first protective shell 50a has a through hole 502. When the first protective shell 50a covers and is installed on the receiving area 112, each of the third transmission structures 60 is received in the through hole 502. The first protective shell 50a is also provided with a receiving part 53 and a clearance opening 503. The through hole 502 passes through the receiving part 53. The outer end of the receiving part 53 has a step 54 formed at the edge of the through hole 502. When the third transmission structure 60 is received in the through hole 502, the third flange 64 of the third transmission structure 60 abuts against the step 54. The step 54 can cooperate with the third flange 64 to achieve a sealing effect. The clearance opening 503 extends obliquely upward to the receiving part of the first transmission structure 42 to prevent the side wall of the receiving part from obstructing the rotation of the first transmission structure 42. Of course, the clearance opening 503 may not be provided on the first protective shell 50a. The receiving portion 51 of the first protective shell 50a may be a groove, and the third gear 431 and the fourth gear 432 of the first sub-transmission structure 43a are received in the receiving portion 51.

[0067] like Figure 10 and Figure 11 As shown, the second protective shell 50b also has a through hole 502, a receiving portion 51, a first flange 52, and a step 54. After the third transmission structure 60 located at the rear end of the main body 10 is received in the through hole 502, the third flange 64 of the third transmission structure 60 abuts against the step 54, and the step 54 can cooperate with the third flange 64 to achieve a sealing function. A support portion 511 is also provided on the inner surface 501 of the second protective shell 50b. The support portion 511 can be sleeved on the support portion 1123 to stably install the second protective shell 50b on the chassis 11. The receiving portion 51 is recessed inward from the inner surface 501 to receive the fifth gear 441 and the sixth gear 442.

[0068] like Figure 3 , Figure 14 and Figure 15As shown, the wheel assembly 20 is provided with a through hole 210 and an engagement part 212. The through hole 210 is rotatably sleeved on the end of the support part 111, and the engagement part 212 is used to engage with the connecting teeth 221 on the inner surface of the track 22. During the rotation of the wheel assembly 20, the track 22 is driven to move in its rotation direction.

[0069] like Figure 2 , Figure 3 , Figure 16 and Figure 17 As shown, protective covers 70 are installed on the left side 14 and right side 15 of the chassis 11, respectively. These protective covers 70 cover the outer side of the protective shell 50, thereby sealing the side openings of the track 22. The protective covers 70 and the track 22 form a primary isolation zone, preventing impurities such as sand or stones from the external environment from entering the meshing areas of the transmission gears. Specifically, the protective cover 70 includes a cover body 71 and a decorative ring 72. The decorative ring 72 is embedded in the outer surface of the protective cover 70, serving a decorative function. Both ends of the protective cover 70 are also provided with mating parts 73, which are positioned corresponding to the through holes 502 of the first protective shell 50a and the second protective shell 50b. The protective cover 70 is also provided with a locking part 74, a locking piece 75, and a locking post 76. Correspondingly, the chassis 11 has locking parts 114, locking parts 115, and connecting parts 116 on both sides. The engaging portion 74 of the cover 71 engages with the engaging portion 114 of the side wall of the chassis 11, the locking piece 75 engages with the engaging portion 115, and the engaging post 76 engages with the connecting portion 116, thereby detachably and sealingly fixing the protective cover 70 to the left and right sides of the chassis 11. The protective cover 70, together with the protective shell 50 and the wheel 21, constitute the dustproof structure of the automatic water tank cleaning device 100.

[0070] The automatic water tank cleaning device 100 provided in this application has at least the following beneficial effects: (1) High-efficiency protection: Through the embedded connection between the first protective shell 50a, the second protective shell 50b and the first wheel 21a and the second wheel 21b, a dedicated protective space is provided for the first transmission structure 42 and the second transmission structure 43 in each area, effectively preventing impurities from entering the first transmission structure 42 and the second transmission structure 43 in each area, so as to reduce the wear risk of the first transmission structure 42 and the second transmission structure 43.

[0071] (2) Easy to maintain: The first protective shell 50a and the second protective shell 50b can be quickly removed, which facilitates daily inspection, cleaning, lubrication and replacement of the first transmission structure 42 and the second transmission structure 43 in each area, greatly reducing maintenance time and cost.

[0072] (3) Balance between heat dissipation and protection: While achieving sealed protection, the first gap 5011 and / or the second gap 5012 can allow heat to dissipate effectively, avoiding overheating problems.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0075] In this application, unless otherwise stated, directional terms such as "up" and "down" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this application.

[0076] The above description is merely an exemplary embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope described in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic water tank cleaning device, characterized in that, The automatic water tank cleaning device (100) includes: Ontology(10); A roller brush assembly (30) is disposed on the body (10). The driver component (40) includes: A drive unit (41) is provided on the body (10). The first transmission structure (42) is connected to the driving component (41); The second transmission structure (43) is connected to the first transmission structure (42) and drives the roller brush assembly (30) to rotate; The protective shell (50) at least partially covers the first transmission structure (42) and the second transmission structure (43).

2. The automatic water tank cleaning device according to claim 1, characterized in that, A first gap (5011) is formed between the inner surface (501) of the protective shell (50) and the first outer surface (401) of the transmission component of the first transmission structure (42); and / or A second gap (5012) is formed between the inner surface (501) of the protective shell (50) and the second outer surface (402) of the transmission component of the second transmission structure (43).

3. The automatic water tank cleaning device according to claim 1, characterized in that, Also includes: The wheel assembly (20) has a through hole (502) in the protective shell (50), and the wheel assembly (20) can be connected to the first transmission structure (42) through the through hole (502).

4. The automatic water tank cleaning device according to claim 3, characterized in that, The main body (10) includes a chassis (11), the first transmission structure (42) and the second transmission structure (43) are rotatably mounted on the chassis (11), the chassis (11), the wheel assembly (20) and the protective shell (50) together form an isolation space (110), and the first transmission structure (42) and the second transmission structure (43) are accommodated in the isolation space (110).

5. The automatic water tank cleaning device according to claim 3, characterized in that, Also includes: The third transmission structure (60) is at least partially housed in the protective shell (50), and the third transmission structure (60) is capable of drivingly connecting the wheel assembly (20) and the first transmission structure (42) through the through hole (502).

6. The automatic water tank cleaning device according to claim 5, characterized in that, The third transmission structure (60) includes a first transmission part (61), which is capable of being connected to the wheel assembly (20) via the through hole (502). The third outer surface (611) of the first transmission part (61) is adapted to the inner surface of the through hole (502); or The wheel assembly (20) includes a first connecting part (211), which is capable of being connected to the third transmission structure (60) through the through hole (502), and the fourth outer surface (2111) of the first connecting part (211) is adapted to the inner surface of the through hole (502).

7. The automatic water tank cleaning device according to claim 5, characterized in that, The main body (10) includes a chassis (11), and the first transmission structure (42) and the second transmission structure (43) are rotatably mounted on the chassis (11); The third transmission structure (60) further includes a second connecting part (62), which is connected to the protective shell (50). The chassis (11), the wheel assembly (20), the protective shell (50) and the third transmission structure (60) together form an isolation space (110), in which the first transmission structure (42) and the second transmission structure (43) are accommodated.

8. The automatic water tank cleaning device according to any one of claims 1-7, characterized in that, The protective shell (50) is detachably connected to the body (10).

9. The automatic water tank cleaning device according to any one of claims 1-7, characterized in that, The protective shell (50) is provided with a first flange (52), and the body (10) is provided with a second flange (113). The first flange (52) and the second flange (113) are configured to cooperate.

10. The automatic water tank cleaning device according to any one of claims 1-7, characterized in that, The body (10) includes a front part (12) and a rear part (13). The wheel assembly (20) of the automatic pool cleaning device (100) includes a first wheel (21a) located at the front (12) and a second wheel (21b) located at the rear (13). The second transmission structure (43) includes a first sub-transmission structure (43a) disposed at the front part (12) and a second sub-transmission structure (43b) disposed at the rear part (13). The protective shell (50) includes a first protective shell (50a) disposed at the front part (12) and a second protective shell (50b) disposed at the rear part (13). The first protective shell (50a) encloses the first wheel (21a), the first transmission structure (42) and the first sub-transmission structure (43a), and the second protective shell (50b) encloses the second wheel (21b) and the second sub-transmission structure (43b).

11. The automatic water tank cleaning device according to claim 10, characterized in that, Also includes: A protective cover (70) is provided on the first wheel (21a), the second wheel (21b), the first transmission structure (42), the first sub-transmission structure (43a), the second sub-transmission structure (43b), the first protective shell (50a), and the second protective shell (50b).

12. The automatic water tank cleaning device according to any one of claims 1-7, characterized in that, Both the first transmission structure (42) and the second transmission structure (43) include at least one gear; The protective shell (50) includes a plurality of receiving portions (51), and at least one of the gears is received in one of the receiving portions (51).

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