A backflow prevention member

Abstract

The utility model provides a kind of anti-backflow piece, it is applied to water surface cleaning device, the water surface cleaning device includes storage frame, the anti-backflow piece includes main part, fixed part and second float, the fixed part is made of flexible material, one end of the fixed part is connected with the bottom end of the main part, the other end of the fixed part is connected with the storage frame, to realize the fixation of the anti-backflow piece relative to the storage frame, the second float is arranged in the main part. The application provides a kind of anti-backflow piece, both can make water flow and sundries smoothly into storage frame, and can avoid the problem that sundries in storage frame overflow.

Description

Technical Field

[0001] This utility model relates to the technical field of water tank cleaning equipment, and in particular to an anti-backflow component. Background Technology

[0002] A water surface cleaning device is an automatic cleaning equipment that can automatically clean up scum and garbage on the water surface and move the garbage to a garbage collection box. However, when the existing water surface cleaning device stops operating, the garbage temporarily stored in the garbage collection box is easily affected by the buoyancy of the water and flows out along the original water inlet channel and falls back into the cleaned water pool, causing secondary pollution and reducing cleaning efficiency. Utility Model Content

[0003] Therefore, the main purpose of this utility model is to provide an anti-backflow component that can prevent garbage from overflowing from the storage box, avoid secondary pollution, and improve cleaning efficiency.

[0004] To achieve the above objectives, this utility model provides an anti-backflow component for use in a water surface cleaning device. The water surface cleaning device includes a storage frame, and the anti-backflow component includes a main body, a fixing part, and a second float. The fixing part is made of a flexible material, one end of which is connected to the bottom end of the main body, and the other end of which is connected to the storage frame to fix the anti-backflow component relative to the storage frame. The second float is disposed on the main body.

[0005] Optionally, the bottom surface of the storage frame is provided with an insertion hole, and the fixing part includes a first flange, a second flange and a connecting part. The first flange is disposed at the bottom end of the main body, the connecting part is disposed between the first flange and the second flange, the second flange is disposed at the bottom end of the connecting part, and the first flange and the second flange protrude relative to the connecting part. The connecting part is configured to be embedded in the insertion hole.

[0006] Optionally, the fixing part further includes a first extension part, one end of which is connected to the main body part, and the other end of which is connected to the first flange part.

[0007] Optionally, the fixing part further includes a first guide part, which is disposed at the bottom end of the second flange part, and the thickness of the first guide part gradually decreases from the end connected to the second flange part to the end away from the second flange part.

[0008] Optionally, the fixing part further includes a second extension part, which is disposed at the bottom end of the first guide part.

[0009] Optionally, there are multiple fixing parts, and the multiple fixing parts are spaced apart at the bottom end of the main body.

[0010] Advantages of this utility model: This application provides an anti-backflow component. The fixing part is made of a flexible material. By setting a second float in the main body and fixing the anti-backflow component in the storage frame, when the water surface cleaning device stops operating, the anti-backflow component can float in the water under the buoyancy of the second float, thereby preventing the garbage in the storage frame from flowing out, avoiding secondary pollution and improving cleaning efficiency. When the water surface cleaning device is operating, the anti-backflow component, due to the flexibility of the fixing part, can tilt under the action of the water flow, allowing water and debris to enter the storage frame. Therefore, this application provides an anti-backflow component that allows water and debris to smoothly enter the storage frame while preventing the debris in the storage frame from overflowing. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the devices shown in these drawings without creative effort.

[0012] Figure 1 A schematic diagram of the structure of a water surface cleaning device according to one embodiment. Figure 1 ;

[0013] Figure 2 A schematic diagram of the structure of a water surface cleaning device according to one embodiment. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the structure of a water surface cleaning device storage frame and a roller brush assembly according to one embodiment.

[0015] Figure 4 A schematic diagram of the structure of the storage frame of a water surface cleaning device according to an embodiment;

[0016] Figure 5 This is a schematic diagram of the structure of the storage frame after removing the third side panel according to one embodiment;

[0017] Figure 6 This is a partial structural diagram of a storage box according to one embodiment;

[0018] Figure 7 This is a structural schematic diagram of the third side panel;

[0019] Figure 8 This is a schematic diagram of the housing structure according to one embodiment;

[0020] Figure 9 This is a schematic diagram of the anti-backflow component according to one embodiment;

[0021] Figure 10 for Figure 9 Enlarged view of point A;

[0022] Figure 11 This is a partial structural schematic diagram of the anti-backflow component from another angle in one embodiment;

[0023] Figure 12 This is a schematic diagram of the fixing part of an anti-backflow component according to one embodiment;

[0024] Figure 13 This is a bottom view of a water surface cleaning device according to an embodiment;

[0025] Figure 14 This is a perspective view of a storage bag according to one embodiment.

[0026] The components are as follows: 1. Housing; 11. Receiving cavity; 12. First opening; 13. Snap-fit ​​hole; 14. Slider; 15. Slide rail; 16. Mounting cavity; 17. Control cavity; 2. Roller brush assembly; 21. Roller brush; 22. Drive component; 3. Storage frame; 31. Frame body; 311. Base plate; 312. First side plate; 313. Second side plate; 314. Third side plate; 315. Rotating shaft; 316. Semi-circular opening; 317. Clearance notch; 318. Insertion hole; 32. Handle; 321. Groove; 33. Baffle; 34. First snap-fit ​​part; 341. Connecting part; 342. Protrusion; 35. Second snap-fit ​​part; 36. First cavity; 37. 4. Anti-backflow component; 41. Main body; 411. Second cavity; 412. Support; 42. Second float; 43. Fixing part; 431. First flange; 432. Second flange; 433. Connecting part; 434. Channel; 435. First guide; 436. First extension; 437. Second extension; 5. Storage bag; 51. Bag body; 52. Connecting assembly; 521. Main frame; 522. Third buckle; 523. Engaging part; 6. Drive assembly; 61. Propeller; 62. Radar; 63. Switch; 64. Indicator light; 65. Solar panel; 66. Anti-sanding component; 67. Anti-collision roller.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, "and / or" throughout the text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] like Figures 1 to 4 As shown, this application provides a water surface cleaning device, which includes a housing 1, a roller brush assembly 2, a storage frame 3, and an anti-backflow component 4. The housing 1 has an internal cavity 11, which extends along the length of the housing 1 and has a first opening 12. The roller brush assembly 2 is disposed at the first opening 12 of the storage cavity 11 and can rotate to carry debris in the pool into the storage cavity 11. The storage frame 3 is slidably disposed in the storage cavity 11 and can reciprocate along the length of the housing 1 to be housed in or separated from the storage cavity 11. The storage frame 3 is used to collect debris that enters the storage cavity 11. The anti-backflow component 4 is disposed in the storage frame 3 and is located on the side of the roller brush assembly 2 away from the first opening 12. The anti-backflow component 4 is used to prevent debris in the storage frame 3 from overflowing.

[0031] This application provides a receiving cavity 11 inside the housing 1, which extends through the length of the housing 1. By sliding the storage frame 3 to the receiving cavity 11, the storage frame 3 can be placed or removed from the receiving cavity 11 by sliding it back and forth along the length of the housing 1. This allows for convenient and quick removal of the storage frame 3, is simple to operate, and improves the efficiency of cleaning up debris and garbage.

[0032] Specifically, the accommodating cavity 11 extends downward from the middle of the housing 1 to the bottom of the housing 1.

[0033] refer to Figures 1 to 5 The storage frame 3 includes a frame body 31, a handle 32, a baffle 33, and a first buckle part 34. The frame body 31 includes a base plate 311, a first side plate 312, a second side plate 313, and a third side plate 314. The first side plate 312, the second side plate 313, and the third side plate 314 are all disposed on the base plate 311. The first side plate 312 and the second side plate 313 are respectively disposed on opposite sides of the base plate 311. The third side plate 314 is disposed between the first side plate 312 and the second side plate 313. The third side plate 314 is detachably connected to the base plate 311.

[0034] The two ends of the baffle 33 are respectively connected to the first side plate 312 and the second side plate 313. The handle 32 and the first buckle part 34 are both located on the side of the baffle 33 away from the first opening 12. The handle 32 has a groove 321. The first buckle part 34 is located above the groove 321. There is a gap between the first buckle part 34 and the groove 321 to provide space for the first buckle part 34 to elastically deform. The handle 32 passes through the third side plate 314 and protrudes outside the housing 1, making it convenient for the user to pull out the storage frame 3.

[0035] refer to Figure 6 The housing 1 has a snap-fit ​​hole 13, and the first snap-fit ​​part 34 is elastic, capable of elastic deformation in the height direction of the housing 1, so that the first snap-fit ​​part 34 abuts against or separates from the snap-fit ​​hole 13, thereby fixing or releasing the storage frame 3 relative to the housing 1. By providing the first snap-fit ​​part 34 and the snap-fit ​​hole 13, the stability of the storage frame 3 during operation can be improved, preventing the storage frame 3 from falling off.

[0036] Specifically, the snap-fit ​​hole 13 is located on the top wall of the accommodating cavity 11.

[0037] Specifically, press down on the first latch 34 to bend it downwards. After the first latch 34 disengages from the latch hole 13, it returns to its original state. Then, pull the handle 32 to slide it away from the first opening 12 until the storage frame 3 separates from the receiving cavity 11. After that, the debris and garbage in the storage frame 3 can be cleaned.

[0038] refer to Figure 5 and Figure 7 The storage frame 3 also includes a second buckle 35, and the frame body 31 also includes a pivot 315. The pivot 315 is connected to the base plate 311. One side of the third side plate 314 is rotatably connected to the pivot 315, and the other side of the third side plate 314 is connected to the second buckle 35. The second buckle 35 is elastic and can undergo elastic deformation in the height direction of the housing 1 so that the second buckle 35 abuts against or separates from the side of the baffle 33 near the first opening 12, thereby fixing the third side plate 314 to the base plate 311 or releasing it from the base plate 311.

[0039] Specifically, the rotating shaft 315 is inserted into the end of the base plate 311 away from the anti-backflow component 4, and both ends of the rotating shaft 315 protrude outside the base plate 311. The two ends of the third side plate 314 on the same side are respectively sleeved on the two ends of the rotating shaft 315, and the two ends of the third side plate 314 are respectively provided with semi-circular openings 316. When the third side plate 314 is released from the housing 1, the third side plate 314 and the base plate 311 are movably connected, and the third side plate 314 can rotate around the rotating shaft 315, thereby separating the third side plate 314 from the rotating shaft 315 through the semi-circular openings 316. Therefore, the setting of the semi-circular openings 316 makes it easy for the third side plate 314 to be directly pulled out and separated from the rotating shaft 315.

[0040] In this embodiment, there are two second latching parts 35, which are spaced apart on the upper part of the third side plate 314.

[0041] refer to Figure 4 , Figure 6 and Figure 8 The storage frame 3 also includes sliders 14, with at least two sliders 14 respectively disposed on the first side plate 312 and the second side plate 313. Slide rails 15 are respectively provided on the two opposite inner side walls of the accommodating cavity 11. The sliders 14 are slidably connected to the slide rails 15 to drive the storage frame 3 to move along the length of the housing 1. By slidably connecting the sliders 14 to the slide rails 15 and pushing the handle 32 towards the first opening 12, the first latching part 34 bends downward under the action of the top wall of the accommodating cavity 11 and the pushing force applied by the user, until the first latching part 34 engages with the latching hole 13. The first latching part 34 then returns to its original shape, thus achieving the assembly of the storage frame 3 and the accommodating cavity 11.

[0042] refer to Figure 14 The water surface cleaning device also includes a storage bag 5, which includes a bag body 51 and a connecting component 52. The bag body 51 is connected to one side of the connecting component 52, and the other side of the connecting component 52 is detachably connected to the frame body 31. When the third side plate 314 is separated from the bottom plate 311, the storage bag 5 is configured to be connected to the frame body 31.

[0043] In other embodiments, the storage bag 5 may be a frame structure.

[0044] Specifically, the connecting component 52 includes a main frame 521, a third buckle part 522, and a locking part 523. The main frame 521 has a ring-shaped structure. The third buckle part 522 and the locking part 523 are located on the same side of the main frame 521. The third buckle part 522 and the locking part 523 are respectively located on the top and bottom surfaces of the main frame 521. The third buckle part 522 is elastic and is configured to be buckled and connected to the baffle 33. The locking part 523 is configured to be engaged with the rotating shaft 315. The third buckle part 522 and the locking part 523 cooperate to realize the connection between the storage bag 5 and the storage frame 3, thereby increasing the volume of miscellaneous items.

[0045] Furthermore, there are two of each of the third latching part 522 and the engaging part 523, with the engaging part 523 having a semi-circular opening 316 structure.

[0046] Specifically, the bag body 51 has a hollow structure to filter water.

[0047] For details, please refer to Figure 3 , Figure 6 and Figure 7 The first latching part 34, the second latching part 35, and the third latching part 522 have the same structure. Each of the three latching parts includes a connecting part 341 and a protrusion 342. The protrusion 342 protrudes from the top surface of the connecting part 341. The connecting part 341 of the first latching part 34 is connected to the baffle 33, and the protrusion 342 of the first latching part 34 is configured to insert into the latching hole 13 and abut against the inner sidewall of the latching hole 13. The connecting part 341 of the second latching part 35 is connected to the third side plate 314, and the protrusion 342 of the second latching part 35 is configured to abut against the side of the baffle 33 away from the first latching part 34. The connecting part 341 of the third latching part 522 is connected to the main frame 521, and the protrusion 342 of the third latching part 522 is configured to abut against the side of the baffle 33 away from the first latching part 34.

[0048] Furthermore, the protrusions 342 of the first latching portion 34, the second latching portion 35, and the third latching portion 522 have at least one inclined surface to reduce resistance during latching.

[0049] When the volume needs to be expanded, the storage frame 3 separates from the accommodating cavity 11, the second buckle part 35 is pressed down, causing the second buckle part 35 to bend downwards, and the third side plate 314 to rotate backwards around the pivot 315. Then, the third side plate 314 is pulled out upwards in an oblique direction, and the pivot 315 separates from the third side plate 314 from the semi-circular opening 316, completing the disassembly of the third side plate 314. Then, the engaging part 523 is engaged into the pivot 315, and the main frame 521 is rotated forward, so that the third buckle part 522 is engaged with the baffle 33, completing the assembly of the storage bag 5 and the storage frame 3.

[0050] When expansion is not required, the storage bag 5 needs to be disassembled. The third buckle 522 separates from the baffle 33, and the engaging part 523 separates from the pivot 315, thus completing the disassembly of the storage bag 5. Then, the semi-circular opening 316 of the third side plate 314 is assembled with the pivot 315. The third side plate 314 rotates forward around the pivot 315, and then the second buckle 35 is pushed to abut against the baffle 33, thus completing the assembly of the third side plate 314.

[0051] refer to Figure 3 and Figure 4 The storage frame 3 also includes a first float. The base plate 311 has multiple perforations. The storage frame 3 also includes a first cavity 36, which is disposed on the base plate 311. The first float is disposed within the first cavity 36. When the water surface cleaning device collects debris and garbage, the storage frame 3 becomes increasingly heavy, causing the device to sink. By providing the first cavity 36 and / or the first float, additional buoyancy can be provided, effectively offsetting some of the weight of the debris and preventing the device from sinking excessively.

[0052] For details, please refer to Figure 3 and Figure 5 The storage box 3 also includes a medicine box 37, which is set on the base plate 311 and spaced apart from the first cavity 36. The medicine box 37 is used to store medicines for water purification, disinfection, etc. in the pool.

[0053] Furthermore, the first side plate 312 and the second side plate 313 have a clearance notch 317 at the end away from the third side plate 314 to avoid the roller brush assembly 2. The bottom plate 311 is arranged in an upward arc shape at the end away from the third side plate 314.

[0054] refer to Figures 9 to 13The anti-backflow component 4 is vertically mounted on the base plate 311, which has an insertion hole 318. The anti-backflow component 4 includes a main body 41, a fixing part 43, and a second float 42. The fixing part 43 is made of flexible material. One end of the fixing part 43 is connected to the bottom end of the main body 41, and the other end of the fixing part 43 is inserted into the insertion hole 318 to fix the anti-backflow component 4 relative to the storage frame. The top end of the main body 41 has a second cavity 411. The second cavity 411 is formed by bending the top end of the main body 41 downward to form a semi-circular structure. The second cavity 411 is arranged through the length of the main body 41. The second float 42 is disposed in the second cavity 411 and the second float 42 matches the second cavity 411.

[0055] In other embodiments, the fixing part 43 and the storage frame can also be fixed by means of adhesive bonding, other assembly structures, etc.

[0056] Specifically, the main body 41 is made of rigid material, while the flexible material can be soft rubber, silicone, rubber, or TPU.

[0057] Specifically, the main body 41 also includes a support portion 412, which is disposed on the side wall of the second cavity 411 and is used to support the second float 42. Furthermore, there are multiple support portions 412, which are spaced apart along the axial direction of the second cavity 411 on the side wall of the second cavity 411.

[0058] refer to Figure 10 The fixing part 43 includes a first flange part 431, a second flange part 432, and a connecting part 433. The first flange part 431 is disposed at the bottom end of the main body part 41, and the connecting part 433 is disposed between the first flange part 431 and the second flange part 432. The first flange part 431 and the second flange part 432 protrude relative to the connecting part 433. A channel 434 is formed between the first flange part 431, the connecting part 433, and the second flange part 432. The connecting part 433 is configured to be embedded in the socket 318. The end faces of the first flange part 431 and the second flange part 432 respectively abut and limit the corresponding port edge of the socket 318 to restrict the displacement of the fixing part 43 relative to the socket 318 in the vertical direction.

[0059] Specifically, the first flange portion 431 and the second flange portion 432 are respectively provided on opposite sides of the connecting portion 433 along the width direction of the fixing portion 43, so that grooves 434 are formed on opposite sides of the connecting portion 433 near or away from the third side plate 314.

[0060] Furthermore, the fixing part 43 also includes a first guide part 435, which is disposed at the bottom end of the second flange part 432. The first guide part 435 and the second flange part 432 are integrally disposed. The width of the first guide part 435 gradually decreases from the end connected to the second flange part 432 to the end away from the second flange part 432, so as to facilitate insertion into the insertion hole 318.

[0061] In this embodiment, the cross-section of the first flange portion 431 and the second flange portion 432 is rectangular, and the cross-section of the first guide portion 435 is trapezoidal.

[0062] refer to Figures 10 to 12 The fixing part 43 also includes a first extension part 436, one end of which is connected to the bottom end of the main body part 41, and the other end of which is connected to the first flange part 431. By providing the first extension part 436, the distance between the fixing part 43 and the main body part 41 is extended, thereby increasing the curvature of the main body part 41.

[0063] Specifically, the width of the connecting portion 433 is greater than the width of the first extension portion 436, and the widths of the first flange portion 431 and the second flange portion 432 are equal and greater than the width of the connecting portion 433.

[0064] The fixing part 43 further includes a second extension part 437, which is disposed at the bottom end of the first guide part 435. By providing the second extension part 437, it is convenient for the user to apply force to insert the connecting part 433 into the socket 318.

[0065] Specifically, the fixing part 43 is fixed to the bottom end of the main body part 41 by adhesive coating. In other embodiments, it can also be fixed by bonding, assembly or other methods.

[0066] There are multiple fixing parts 43 and multiple insertion holes 318. Multiple insertion holes 318 are arranged at intervals along the base plate 311, and multiple fixing parts 43 are arranged at intervals at the bottom end of the main body part 43.

[0067] The buoyancy of the second float is greater than or equal to the sum of the weights of the main body 41 and the fixed part 43.

[0068] When the water surface cleaning device starts working, water flows in through the first opening 12 and impacts the anti-backflow component 4. Due to the flexible nature of the fixing part 43, the anti-backflow component 4 tilts away from the first opening 12, facilitating the flow of water and debris into the storage frame 3. When the water surface cleaning device stops operating, the anti-backflow component 4 floats in the water under the action of the second float 42, that is, the anti-backflow component 4 returns to a roughly vertical state, thereby preventing the debris in the storage frame 3 from flowing out.

[0069] refer to Figure 1 and Figure 2The water surface cleaning device of this application also includes a drive assembly 6, which is disposed at the end of the housing 1 away from the first opening 12, and is used to drive the housing 1 to move.

[0070] The drive assembly 6 includes two propellers 61. Mounting cavities 16 are respectively opened on both sides of the housing 1. The two propellers 61 are respectively disposed in the two mounting cavities 16. The propellers 61 can be driven to rotate so that the housing 1 can move.

[0071] Specifically, the drive assembly 6 also includes a propeller motor, which is connected to the propeller 61 to drive the propeller 61 to rotate. The propeller motor can rotate forward or in reverse.

[0072] Specifically, the mounting cavity 16 is provided through one end away from the first opening 12, and the bottom of the mounting cavity 16 is provided through.

[0073] The water surface cleaning device of this application also includes a radar 62 or an infrared sensor. The radar 62 is located at the other end of the housing 1. The radar 62 and the first opening 12 are located at the same end. The radar 62 is used to detect obstacles. When an obstacle is encountered, the rotation direction of the propeller motor is changed through the signal feedback of the radar 62, switching the propeller motor from forward rotation to reverse rotation.

[0074] Furthermore, there are two radars 62, which are symmetrically arranged with respect to the first opening 12.

[0075] refer to Figure 1 and Figure 3 The roller brush assembly 2 includes a roller brush 21 and a drive member 22. The roller brush 21 is disposed at the first opening 12, and the drive member 22 is disposed inside the housing 1. The drive member 22 is connected to the roller brush 21 and can rotate along itself, thereby driving the roller brush 21 to rotate.

[0076] The water surface cleaning device also includes a battery, a circuit board, a Bluetooth module, and a sensor. A control cavity 17 is located inside the housing 1, above the receiving cavity 11. The control cavity 17 houses the battery, circuit board, and Bluetooth module. The battery is electrically connected to the drive unit 22 and the propeller motor, supplying power to them. The circuit board is communicatively connected to the drive unit 22 and the propeller motor, controlling their start and stop. The circuit board also adjusts the rotational speed of the drive unit 22 and the propeller motor, and switches between forward and reverse rotation of the propeller motor. The Bluetooth module receives Bluetooth signals from a mobile phone, allowing control of the water surface cleaning device via the phone. The sensor is located on the top wall of the receiving cavity 11 and identifies the amount of debris in the cavity; an alarm signal is emitted when it is full.

[0077] Furthermore, the control cavity 17 is a sealed cavity.

[0078] Specifically, the water surface cleaning device also includes a switch 63 and an indicator light 64. Both the switch 63 and the indicator light 64 are located on the top surface of the housing 1. The switch 63 is electrically connected to the circuit board, thereby controlling the water surface cleaning device through the switch 63.

[0079] The water surface cleaning device also includes a solar panel 65, which is disposed on the top surface of the housing 1 and electrically connected to a battery to supply power to the battery. Furthermore, a charging interface is provided on the side of the housing 1 away from the first opening 12, located above the storage frame 3.

[0080] refer to Figure 11 The water surface cleaning device also includes an anti-sanding component 66, which is located at the bottom of the housing 1. The anti-sanding component 66 has an elastic element inside, which can be moved up and down freely to adjust the height after being pressed. The anti-sanding component 66 is used to reduce the contact area at the bottom of the housing 1 and prevent the housing 1 from sticking to the bottom of the pool.

[0081] In this embodiment, there are four anti-sanding components 66.

[0082] refer to Figure 1 The water surface cleaning device also includes anti-collision rollers 67 and anti-collision rubber strips. The anti-collision rollers 67 are located on both sides of the housing 1, and the anti-collision rubber strips are located on both sides of the housing 1.

[0083] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent device transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An anti-backflow component, applied to a water surface cleaning device, the water surface cleaning device comprising a storage frame, characterized in that, The anti-backflow component includes a main body, a fixing part, and a second float. The fixing part is made of a flexible material. One end of the fixing part is connected to the bottom end of the main body, and the other end of the fixing part is connected to the storage frame to fix the anti-backflow component relative to the storage frame. The second float is disposed on the main body.

2. The anti-backflow component as described in claim 1, characterized in that, The bottom surface of the storage frame is provided with an insertion hole. The fixing part includes a first flange, a second flange and a connecting part. The first flange is disposed at the bottom end of the main body. The connecting part is disposed between the first flange and the second flange. The second flange is disposed at the bottom end of the connecting part. The first flange and the second flange protrude relative to the connecting part. The connecting part is configured to be embedded in the insertion hole.

3. The anti-backflow component as described in claim 2, characterized in that, The fixing part further includes a first extension part, one end of which is connected to the bottom end of the main body part, and the other end of which is connected to the first flange part.

4. The anti-backflow component as described in claim 3, characterized in that, The fixing part further includes a first guide part, which is disposed at the bottom end of the second flange part, and the width of the first guide part gradually decreases from one end connected to the second flange part to the end away from the second flange part.

5. The anti-backflow component as described in claim 4, characterized in that, The fixing part further includes a second extension part, which is disposed at the bottom end of the first guide part.

6. The anti-backflow component as described in claim 1, characterized in that, The number of fixing parts is multiple, and the multiple fixing parts are spaced apart at the bottom end of the main body.

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