Air duct assembly for a floor brush, floor brush and cleaning device

Abstract

The utility model discloses a floor brush's air duct subassembly, floor brush and cleaning equipment, floor brush's air duct subassembly includes: first connecting seat, first connecting seat is adjacent to the side wall of export and is provided with first clamping part, the dirt suction pipeline is adjacent to the side wall of import end and is provided with second clamping part, and first clamping part and second clamping part clamping fixed. Therefore, by setting first clamping part on first connecting seat, setting second clamping part on the dirt suction pipeline, first connecting seat and the dirt suction pipeline between no need first injection molding assembly, clamping first clamping part and second clamping part to realize the cooperation between the dirt suction pipeline and first connecting seat, like this not only can be convenient for first connecting seat and dirt suction pipeline quick installation, and first connecting seat need not to carry dirt suction pipeline when processing, thereby can save space, reduce assembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to an air duct assembly for a floor brush, a floor brush, and a cleaning device. Background Technology

[0002] In the injection molding process of cleaning equipment, the top cover of the floor brush duct and the suction pipe are first injection molded into one piece, and then the bottom cover of the floor brush duct and the top cover of the floor brush duct with the suction pipe are welded together by ultrasonic welding or other methods.

[0003] The existing technology involves two injection molding processes. The first injection is between the top cover of the floor brush duct and the suction pipe; the second injection is between the bottom cover of the floor brush duct and the top cover of the floor brush duct with the suction pipe. When the suction pipe is carried during the second injection, the space occupied during injection is large, which makes the injection process of the entire structure more complicated. In addition, the two injection processes also result in higher processing costs. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an air duct assembly for a floor brush, which has a simple assembly method.

[0005] This utility model further proposes a floor brush.

[0006] This utility model further proposes a cleaning device.

[0007] The air duct assembly of the floor brush according to an embodiment of the present utility model includes: a first connecting seat, the first connecting seat having an inlet and an outlet that are interconnected, the inlet being adapted to be connected to the suction port of the floor brush, and a first snap-fit ​​portion being provided on the side wall of the first connecting seat adjacent to the outlet; and a suction pipe, the suction pipe being an integrally formed structural component with its inlet end connected to the outlet of the first connecting seat, and a second snap-fit ​​portion being provided on the side wall of the suction pipe adjacent to the inlet end, the first snap-fit ​​portion and the second snap-fit ​​portion being snap-fitted and fixed.

[0008] Therefore, by setting a first snap-fit ​​part on the first connecting seat and a second snap-fit ​​part on the suction pipe, the first connecting seat and the suction pipe do not need to be pre-injected and assembled. After the structure of the first connecting seat is processed, the first snap-fit ​​part and the second snap-fit ​​part are snapped together to achieve the cooperation between the suction pipe and the first connecting seat. The first connecting seat and the suction pipe are fixed by snap-fit, which makes the first connecting seat and the suction pipe quick to install and easy to assemble. In addition, the suction pipe does not need to be carried during the processing of the first connecting seat, saving processing space and simplifying the assembly difficulty.

[0009] According to some embodiments of the present invention, one of the first snap-fit ​​portion and the second snap-fit ​​portion is a slot and the other is a snap-fit ​​protrusion. The inlet end of the suction pipe extends at least partially into the first connecting seat and the snap-fit ​​protrusion engages with the slot.

[0010] According to some embodiments of the present invention, the first connecting seat has a limiting groove at the end corresponding to the outlet, and the side wall of the suction pipe near the inlet end is provided with a limiting protrusion, and the limiting protrusion and the limiting groove abut and limit each other.

[0011] According to some embodiments of the present invention, the suction pipe includes a duct body, an inlet end connector and an outlet end connector. The inlet end connector and the outlet end connector are respectively disposed at both ends of the duct body and are integrally injection molded structural components with the duct body. The second snap-fit ​​part is disposed at the inlet end connector.

[0012] According to some embodiments of the present invention, a first sealing ring is sleeved on the outer wall of the suction pipe near the inlet end, and the first sealing ring radially seals between the outer wall of the suction pipe and the inner wall of the first connecting seat.

[0013] According to some embodiments of the present invention, the air duct assembly of the floor brush further includes a sealing gasket, which is axially sealed between the first connecting seat and the end of the suction pipe corresponding to the inlet end.

[0014] The floor brush duct assembly according to an embodiment of the present invention includes: a first connecting seat having an inlet and an outlet communicating with each other, the inlet being adapted to communicate with the suction port of the floor brush; a suction pipe, the suction pipe and the first connecting seat being non-integral injection molded structural components, the inlet end of the suction pipe extending at least partially into the first connecting seat and communicating with the outlet, the outer wall of the suction pipe and the inner wall of the first connecting seat being sealed together radially in the suction pipe; and / or the first connecting seat and the end of the suction pipe corresponding to the inlet end being sealed together axially in the suction pipe.

[0015] According to some embodiments of the present invention, a first sealing ring is provided on the outer wall of the suction pipe near the inlet end, and the first sealing ring seals in the radial direction between the outer wall of the suction pipe and the inner wall of the first connecting seat.

[0016] According to some embodiments of the present invention, the air duct assembly of the floor brush further includes a sealing gasket, and the inner wall of the first connecting seat extends inward at least partially to form a limiting step, the limiting step and the end of the inlet end are disposed opposite each other in the axial direction, and the sealing gasket is sealed and abutted between the limiting step and the end of the inlet end in the axial direction.

[0017] According to some embodiments of the present invention, the first connecting seat is provided with a connecting part, the connecting part being adapted to be connected to a floor brush, the connecting part including a first connecting part and a second connecting part, the first connecting part being disposed on the front side of the first connecting seat, and the second connecting part being disposed on at least one side of the first connecting seat in the left-right direction.

[0018] According to some embodiments of the present invention, the first connecting seat includes an upper cover and a lower cover. The inlet and outlet of the first connecting seat are respectively disposed at the front and rear ends of the upper cover. The connecting part is disposed on the upper cover, and the lower cover is disposed on the lower side of the upper cover and welded and fixed to the upper cover.

[0019] According to some embodiments of this utility model, the top cover is a rubber-coated part.

[0020] According to some embodiments of the present invention, the first connecting seat is provided with a first snap-fit ​​part on the side wall near the outlet, and the suction pipe is provided with a second snap-fit ​​part on the side wall near the inlet end, and the first snap-fit ​​part and the second snap-fit ​​part are snap-fitted and fixed.

[0021] According to some embodiments of the present invention, the air duct assembly of the floor brush further includes a second connecting seat, the second connecting seat being adapted to be connected to the suction pipe, at least a portion of the suction pipe near its outlet end extending into the second connecting seat, and the outer wall of the suction pipe and the inner wall of the second connecting seat being sealed together radially in the suction pipe.

[0022] The floor brush according to an embodiment of the present invention includes the air duct assembly of the floor brush described above.

[0023] The cleaning device according to an embodiment of the present invention includes the floor brush described above.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a floor brush according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of a floor brush according to an embodiment of the present utility model from another perspective; Figure 3 for Figure 2 Cross-sectional view along the AA direction; Figure 4 for Figure 3 A schematic diagram of region B in the middle; Figure 5 for Figure 3 A schematic diagram of region C in the middle; Figure 6 This is a schematic diagram of a duct assembly according to an embodiment of the present utility model; Figure 7 This is a partial schematic diagram of a floor brush according to an embodiment of the present utility model; Figure 8 This is a partial schematic diagram of the air duct assembly according to an embodiment of the present utility model.

[0026] Figure label: 1000, floor brush; 100. Air duct components; 10. First connecting seat; 11. Inlet; 12. Outlet; 13. First snap-fit ​​part; 14. Limiting groove; 15. Limiting step; 16. Connecting part; 161. First connecting part; 162. Second connecting part; 17. Upper cover; 18. Lower cover; 20. Suction pipe; 21. Duct body; 22. Inlet connector; 221. Second snap-fit ​​part; 222. Limiting protrusion; 223. First sealing ring; 224. Sealing gasket; 23. Outlet connector; 24. Inlet end; 25. Outlet end; 26. Second sealing ring; 30. Second connecting seat. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0028] The following is for reference. Figures 1-8 The present invention describes an air duct assembly 100 of a floor brush 1000 according to an embodiment of the present invention. The air duct assembly 100 of the floor brush 1000 is applicable to the floor brush 1000, and the floor brush 1000 of the present invention is applicable to cleaning equipment.

[0029] Combination Figure 3 , Figure 6 and Figure 8As shown, the air duct assembly 100 of the floor brush 1000 according to the present utility model embodiment may mainly include: a first connecting seat 10 and a suction pipe 20, wherein the first connecting seat 10 has an inlet 11 and an outlet 12 that are interconnected, and the inlet 11 is adapted to be connected to the suction port of the floor brush 1000.

[0030] Specifically, the inlet 11 and outlet 12 of the first connecting seat 10 are connected, and the inlet 11 is connected to the suction port of the floor brush 1000. This allows the floor brush 1000 to suck in dirt and flow from the inlet 11 of the first connection into the first connecting seat 10, and then flow out of the first connecting seat 10 from the outlet 12 of the first connecting seat 10, thus forming the air duct assembly 100 of the floor brush 1000.

[0031] Furthermore, the suction pipe 20 is a one-piece molded structural component, and the inlet end 24 is connected to the outlet 12 of the first connecting seat 10. Specifically, in this embodiment of the present invention, the suction pipe 20 is formed as a whole by one-piece injection molding. This not only simplifies the manufacturing process of the suction pipe 20 and improves the production efficiency of the floor brush 1000, but also improves the structural strength of the suction pipe 20 to ensure its reliability in the floor brush 1000.

[0032] Furthermore, the first connecting seat 10 is provided with a first snap-fit ​​part 13 on the side wall near the outlet 12, and the suction pipe 20 is provided with a second snap-fit ​​part 221 on the side wall near the inlet end 24. The first snap-fit ​​part 13 and the second snap-fit ​​part 221 are snapped together and fixed.

[0033] Specifically, the first snap-fit ​​part 13 has a simple structure, which makes it easy to process on the first connecting seat 10, and the second snap-fit ​​part 221 has a simple structure, which makes it easy to install on the suction pipe 20.

[0034] Furthermore, the first snap-fit ​​part 13 and the second snap-fit ​​part 221 are reliable and easy to operate. Thus, when assembling the first connecting seat 10 and the suction pipe 20, the first snap-fit ​​part 13 and the second snap-fit ​​part 221 can be directly snapped together to quickly fix the first connecting seat 10 and the suction pipe 20. This not only enables the quick and easy installation of the first connecting seat 10 and the suction pipe 20, but also ensures the reliability of the connection between the first connecting seat 10 and the suction pipe 20.

[0035] In existing technology, the top cover of the floor brush duct and the suction pipe are first injection molded into one piece, and then the bottom cover of the floor brush duct and the top cover of the floor brush duct with the suction pipe are welded together by ultrasonic or other methods. During the second injection molding, the top cover of the floor brush duct carries the suction pipe, which makes the injection molding process take up a lot of space. In addition, the second injection molding part must be a flat section to be injection molded. This solution cannot be formed in floor brush components with small space and complex structure, which leads to a complicated injection molding process and high injection molding cost.

[0036] Therefore, by providing a first snap-fit ​​part 13 on the first connecting seat 10 and a second snap-fit ​​part 221 on the suction pipe 20, the first connecting seat 10 and the suction pipe 20 do not need to be pre-assembled by injection molding. The first snap-fit ​​part 13 and the second snap-fit ​​part 221 are snapped together to achieve the cooperation between the suction pipe 20 and the first connecting seat 10. This not only facilitates the quick installation of the first connecting seat 10 and the suction pipe 20, but also eliminates the need to carry the suction pipe 20 during the processing of the first connecting seat 10, thereby saving the space occupied by the first connecting seat 10 and injection molding and reducing the assembly difficulty.

[0037] Combination Figure 8 As shown, one of the first snap-fit ​​portion 13 and the second snap-fit ​​portion 221 is a snap-fit ​​groove, and the other is a snap-fit ​​protrusion. The inlet end 24 of the suction pipe 20 extends at least partially into the first connecting seat 10, and the snap-fit ​​protrusion engages with the snap-fit ​​groove.

[0038] Specifically, the snap-fit ​​of the first snap-fit ​​part 13 and the second snap-fit ​​part 221 is actually a snap-fit ​​fit between the snap-fit ​​protrusion and the snap-fit ​​groove. The fit structure between the snap-fit ​​protrusion and the groove is simple and easy to install, which can realize the rapid installation of the first connecting seat 10 and the suction pipe 20.

[0039] Furthermore, when installing the snap-fit ​​protrusion and snap-fit ​​groove, the inlet end 24 of the suction pipe 20 needs to be at least partially inserted into the first connecting seat 10. This increases the axial overlap area between the first connecting seat 10 and the suction pipe 20, thereby enhancing the connection reliability between the suction pipe 20 and the first connecting seat 10 and facilitating radial sealing between the first connecting seat 10 and the suction pipe 20, thus improving the sealing performance of the air duct assembly 100 of the floor brush 1000.

[0040] Combination Figure 8 As shown, the first connecting seat 10 has a limiting groove 14 at the end corresponding to the outlet 12, and the side wall of the suction pipe 20 near the inlet end 24 is provided with a limiting protrusion 222. The limiting protrusion 222 and the limiting groove 14 abut and limit each other.

[0041] Specifically, when the inlet end 24 of the suction pipe 20 extends into the end of the outlet 12 corresponding to the first connecting seat 10, the limiting protrusion 222 on the inlet end 24 of the suction pipe 20 can correspond to the limiting groove 14 opened near the outlet 12 of the first connecting seat 10, so that the limiting protrusion 222 and the limiting groove 14 are in a limiting fit. This makes it easier for the suction pipe 20 and the first connecting seat 10 to be aligned and positioned, so that the locking protrusion and the locking groove can be quickly locked together, thereby improving the assembly convenience of the suction pipe 20 and the first connecting seat 10.

[0042] Combination Figure 3 , Figure 6 and Figure 8 As shown, the suction pipe 20 includes a duct body 21, an inlet end connector 22 and an outlet end connector 23. The inlet end connector 22 and the outlet end connector 23 are respectively located at both ends of the duct body 21 and are integrally injection molded structural components with the duct body 21. The second snap-fit ​​part 221 is located at the inlet end connector 22.

[0043] Specifically, in this embodiment of the present invention, the air duct body 21, the inlet end connector 22, and the outlet end connector 23 in the suction pipe 20 are integrally injection molded. This not only reduces the number of structures in the suction pipe 20 and eliminates the need for assembling the air duct body 21, the inlet end connector 22, and the outlet end connector 23, but also results in higher structural strength and better sealing performance from the integral injection molding. This not only improves the structural reliability of the suction pipe 20, but also enhances its sealing performance.

[0044] Furthermore, during the one-piece injection molding process, the second snap-fit ​​part 221 can be directly injection molded onto the inlet end connector 22. This can improve the structural strength of the second snap-fit ​​part 221 on the suction pipe 20, ensure the reliability of the snap-fit ​​between the second snap-fit ​​part 221 and the first snap-fit ​​part 13, and thus improve the connection reliability between the suction pipe 20 and the first connecting seat 10.

[0045] Combination Figure 3 and Figure 4 As shown, a first sealing ring 223 is fitted on the outer wall of the suction pipe 20 near the inlet end 24. The first sealing ring 223 elastically seals between the outer wall of the suction pipe 20 and the inner wall of the first connecting seat 10.

[0046] Specifically, the inlet end of the suction pipe 20 is connected to the first connecting seat 10, and a first sealing ring 223 is fitted on the outer wall of the suction pipe 20 near the inlet end 24. This allows the first sealing ring 223 to be elastically compressed between the outer wall of the suction pipe 20 and the inner wall of the first connecting seat 10 when the suction pipe 20 is connected to the first connecting seat 10. The elasticity of the first sealing ring 223 allows it to fit tightly against the outer wall of the suction pipe 20 and the inner wall of the first connecting seat 10, thus sealing the suction pipe 20 near the inlet end 24 and the first connecting seat 10 in the radial direction of the suction pipe 20. This prevents dirt in the duct assembly 100 from overflowing between the inner wall of the first connecting seat 10 near the outlet end 25 and the outer wall of the suction pipe 20 inlet end 24, thereby ensuring the reliability of the floor brush 1000.

[0047] Combination Figure 4As shown, the air duct assembly 100 of the floor brush 100 also includes a sealing gasket 224. The sealing gasket 224 is axially sealed between the ends of the first connecting seat 10 and the corresponding inlet end 24 of the suction pipe 20. This arrangement allows the sealing gasket 224 to seal between the ends of the first connecting seat 10 and the inlet end 24 of the suction pipe 20, thus preventing dirt sucked into the air duct assembly 100 by the floor brush 1000 from overflowing between the ends of the first connecting seat 10 and the inlet end 24 of the suction pipe 20. This axial seal between the first connecting seat 10 and the suction pipe 20 ensures the reliability of the floor brush 1000.

[0048] Combination Figure 3 and Figure 4 As shown, the air duct assembly 100 of the floor brush 1000 according to the present utility model embodiment may mainly include: a first connecting seat 10 and a suction pipe 20. The first connecting seat 10 and the suction pipe 20 are non-integral injection molded structural parts. The first connecting seat 10 has an inlet 11 and an outlet 12 that are interconnected. The inlet 11 is adapted to be connected to the suction port of the floor brush 1000.

[0049] Specifically, the inlet 11 and outlet 12 of the first connecting seat 10 are connected, and the inlet 11 is connected to the suction port of the floor brush 1000. This allows the floor brush 1000 to suck in dirt and flow from the inlet 11 of the first connection into the first connecting seat 10, and then flow out of the first connecting seat 10 from the outlet 12 of the first connecting seat 10, thus forming the air duct assembly 100 of the floor brush 1000.

[0050] Furthermore, according to some embodiments of the present invention, the inlet end 24 of the suction pipe 20 extends at least partially into the first connecting seat 10 and communicates with the outlet 12, and the outer wall of the suction pipe 20 and the inner wall of the first connecting seat 10 are sealed together in the radial direction of the suction pipe 20.

[0051] Specifically, the inlet end 24 of the suction pipe 20 extends at least partially into the first connecting seat 10, which increases the axial overlap area between the suction pipe 20 and the first connecting seat 10, thereby enhancing the connection strength between the suction pipe 20 and the first connecting seat 10.

[0052] Furthermore, the outer wall of the suction pipe 20 and the inner wall of the first connecting seat 10 are sealed in the radial direction of the suction pipe 20. This prevents dirt in the air duct assembly 100 from overflowing from the inner wall of the first connecting seat 10 near the outlet end 25 and the outer wall of the suction pipe 20 inlet end 24, thereby ensuring the reliability of the floor brush 1000.

[0053] According to some other embodiments of the present invention, the first connecting seat 10 and the end of the corresponding inlet end 24 of the suction pipe 20 are sealed in the axial direction of the suction pipe 20. This can prevent dirt in the air duct assembly 100 sucked in by the floor brush 1000 from overflowing between the first connecting seat 10 and the end of the inlet end 24 of the suction pipe 20, so as to seal the first connecting seat 10 and the suction pipe 20 in the axial direction, that is, to form an axial seal between the first connecting seat 10 and the suction pipe 20.

[0054] According to some embodiments of the present invention, the outer wall of the suction pipe 20 and the inner wall of the first connecting seat 10 are sealed in the radial direction of the suction pipe 20, and the first connecting seat 10 and the end of the corresponding inlet end 24 of the suction pipe 20 are sealed in the axial direction of the suction pipe 20. This can prevent dirt in the air duct assembly 100 from overflowing from the inner wall of the first connecting seat 10 near the outlet end 25 and the outer wall of the inlet end 24 of the suction pipe 20, thereby ensuring the reliability of the floor brush 1000.

[0055] Combination Figure 3 and Figure 4 As shown, a first sealing ring 223 is fitted on the outer wall of the suction pipe 20 near the inlet end 24. The first sealing ring 223 elastically seals between the outer wall of the suction pipe 20 and the inner wall of the first connecting seat 10. The first sealing ring 223 seals radially between the outer wall of the suction pipe 20 and the inner wall of the first connecting seat 10.

[0056] This design prevents dirt from overflowing from the inner wall of the first connector 10 near the outlet end 25 and the outer wall of the suction pipe 20 inlet end 24, thus ensuring the reliability of the floor brush 1000.

[0057] Combination Figure 4 As shown, the air duct assembly 100 of the floor brush 1000 also includes a sealing gasket 224. The inner wall of the first connecting seat 10 extends inward at least partially to form a limiting step 15. The limiting step 15 and the end of the inlet end 24 are axially opposite each other. The sealing gasket 224 seals against the limiting step 15 and the end of the inlet end 24 in the axial direction.

[0058] Specifically, the limiting step 15 is formed by extending inward from the inner wall of the first connecting seat 10. This allows the limiting step 15 to provide stable and reliable support for the sealing gasket 224, and allows the sealing gasket 224 to correspond axially with the end of the suction pipe 20 near the inlet end 24, so as to form an axial seal between the first connecting seat 10 and the suction pipe 20. This arrangement can improve the sealing reliability of the first connecting seat 10 and the suction pipe 20, and is beneficial to improving the sealing performance of the air duct assembly 100 of the floor brush 1000.

[0059] Combination Figures 7-8 As shown, the first connecting seat 10 is provided with a connecting part 16, which is adapted to be connected to the floor brush 1000. Specifically, the first connecting seat 10 is connected to the floor brush 1000 to ensure stable communication between the inlet 11 of the first connecting seat 10 and the suction port of the floor brush 1000.

[0060] Furthermore, the connecting part 16 includes a first connecting part 161 and a second connecting part 162. The first connecting part 161 is disposed on the front side of the first connecting seat 10, and the second connecting part 162 is disposed on at least one side of the first connecting seat 10 in the left-right direction. This arrangement allows the first connecting seat 10 to be connected to the floor brush 1000 on the front side and at least one side in the left-right direction, thus ensuring the connection stability between the first connecting seat 10 and the floor brush 1000, and further ensuring the reliability of the connection between the inlet 11 of the first connecting seat 10 and the suction port of the floor brush 1000.

[0061] In an embodiment of this utility model, the connecting part 16 is a connecting hole, so that the first connecting seat 10 can be fixed on the floor brush 1000 by passing a screw through the connecting hole, thereby ensuring the reliability of the connection between the first connecting seat 10 and the floor brush 1000.

[0062] Combination Figure 6 and Figure 8 As shown, the first connecting seat 10 includes an upper cover 17 and a lower cover 18. The inlet 11 and outlet 12 of the first connecting seat 10 are respectively disposed at the front and rear ends of the upper cover 17. The connecting part 16 is disposed on the upper cover 17, and the lower cover 18 is disposed on the lower side of the upper cover 17 and is welded and fixed to the upper cover 17.

[0063] Specifically, the first connecting seat 10 is configured as a structure formed by welding and fixing an upper cover 17 and a lower cover 18 together. This allows for separate structural designs for the upper cover 17 and the lower cover 18, enabling the first connecting seat 10 to fit the space in the brush 1000. In embodiments of this invention, the welding methods for the upper cover 17 and the lower cover 18 include, but are not limited to, ultrasonic welding.

[0064] Furthermore, the inlet 11 of the first connecting seat 10 is composed of an upper cover 17 and a lower cover 18 to ensure the structural integrity of the inlet 11, allowing dirt to flow smoothly into the first connecting seat 10. Similarly, the outlet 12 of the first connecting seat 10 is composed of an upper cover 17 and a lower cover 18 to ensure the structural integrity of the outlet 12, allowing dirt to flow smoothly into the first connecting seat 10. This configuration ensures that dirt sucked in by the floor brush 1000 can pass smoothly through the first connecting seat 10, guaranteeing the collection and processing of the dirt by the cleaning equipment.

[0065] According to an embodiment of this utility model, the top cover 17 is an overmolded part. Specifically, an overmolded part is a structural component that wraps a layer of elastomeric material around the surface of a substrate (usually rigid plastic or metal). With this configuration, the top cover 17 not only has a certain structural strength, ensuring that the connecting part 16, inlet 11, outlet 12, and snap-fit ​​groove are reliably mounted on the first connecting seat 10, but also has an elastic material on its surface. This allows the first connecting seat 10 to fit tightly against the suction pipe 20, improving the waterproof, dustproof, and sealing capabilities of the duct assembly 100. On the other hand, it also helps reduce the vibration transmitted to the first connecting seat 10 when the floor brush 1000 is suctioning. This not only protects the sealing performance of the first connecting seat 10 and the suction pipe 20, but also helps reduce the vibration transmitted to the handheld structure, thus reducing noise.

[0066] Combination Figure 7 and Figure 8 As shown, the first connecting seat 10 is provided with a first snap-fit ​​part 13 on the side wall near the outlet 12, and the suction pipe 20 is provided with a second snap-fit ​​part 221 on the side wall near the inlet end 24. The first snap-fit ​​part 13 and the second snap-fit ​​part 221 are snapped together and fixed.

[0067] Specifically, the first snap-fit ​​part 13 has a simple structure, which makes it easy to process on the first connecting seat 10, and the second snap-fit ​​part 221 has a simple structure, which makes it easy to install on the suction pipe 20.

[0068] Furthermore, the first snap-fit ​​part 13 and the second snap-fit ​​part 221 are reliable and easy to operate. Thus, when assembling the first connecting seat 10 and the suction pipe 20, the first snap-fit ​​part 13 and the second snap-fit ​​part 221 can be directly snapped together to quickly fix the first connecting seat 10 and the suction pipe 20. This not only enables the quick and easy installation of the first connecting seat 10 and the suction pipe 20, but also ensures the reliability of the connection between the first connecting seat 10 and the suction pipe 20.

[0069] Compared to existing technologies, this method can replace the secondary injection molding connection of the brush duct cover and the steel wire hose. However, secondary injection molding requires placing the entire brush duct cover and steel wire hose into the mold, which occupies a large volume. Furthermore, the secondary injection molded brush duct system is only suitable for relatively simple brush duct cover structures because the secondary injection part must be a flat section to be injection molded. This solution cannot be used in brush components with limited space and complex structures.

[0070] Therefore, by providing a first snap-fit ​​part 13 on the first connecting seat 10 and a second snap-fit ​​part 221 on the suction pipe 20, the first connecting seat 10 and the suction pipe 20 can be quickly installed by snapping the first snap-fit ​​part 13 and the second snap-fit ​​part 221 together. This not only improves the assembly convenience of the air duct assembly 100 of the floor brush 1000, but also makes it suitable for floor brushes with small spaces and complex structures.

[0071] Combination Figure 3 , Figure 5 and Figure 6 As shown, the air duct assembly 100 of the floor brush 1000 also includes a second connector 30, which is adapted to be connected to a suction pipe 20. At least a portion of the suction pipe 20 adjacent to the outlet end 25 extends into the second connector 30, and the outer wall of the suction pipe 20 and the inner wall of the second connector 30 are sealed together in the radial direction of the suction pipe 20.

[0072] In an embodiment of this utility model, a second sealing ring 26 is fitted on the outer wall of the suction pipe 20. The second sealing ring 26 is sealed between the outer wall of the suction pipe 20 and the inner wall of the second connecting seat 30, so as to seal the outer wall of the suction pipe 20 and the inner wall of the second connecting seat 30 in the radial direction of the suction pipe 20. This can ensure the reliability of the seal between the suction pipe 20 and the second connecting seat 30.

[0073] Specifically, the second connecting seat 30 is connected to the outlet end 25 of the suction pipe 20 to form the air duct assembly 100 of the floor brush 1000. At least a portion of the suction pipe 20 adjacent to the outlet end 25 extends into the second connecting seat 30, which increases the overlap area of ​​the suction pipe 20 and the second connecting seat 30 in the circumferential direction of the suction pipe 20, thereby increasing the connection reliability of the suction pipe 20 and the second connecting seat 30.

[0074] Furthermore, the second sealing ring 26 seals the space between the outer wall of the suction pipe 20 and the inner wall of the second connecting seat 30, preventing dirt sucked up by the floor brush 1000 from overflowing between the suction pipe 20 and the second connecting seat 30, thereby improving the sealing performance between the suction pipe 20 and the second connecting seat 30, and thus enhancing the sealing performance of the air duct assembly 100 of the floor brush 100, ensuring the reliability of the cleaning equipment.

[0075] According to the embodiments of the present invention, the air duct component 100 of the floor brush 1000 can be applied to the floor brush 1000. The assembly method of the air duct component 100 of the floor brush 1000 in the embodiments of the present invention is simpler, and when the first connecting seat 10 and the suction pipe 20 are connected, it does not need to occupy too much space. It can be used even in the floor brush 1000 with small space and complex structure, thereby reducing the production cost of the floor brush 1000.

[0076] According to the embodiments of this utility model, the floor brush 1000 can be applied to cleaning equipment. The floor brush 1000 in the embodiments of this utility model has a more convenient assembly method, higher assembly efficiency, and better sealing performance. This can not only improve the production efficiency of cleaning equipment, but also improve the reliability of cleaning equipment.

[0077] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "circumferential", "radial", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0079] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A floor brush air duct assembly, characterized in that, include: The first connecting seat (10) has an inlet (11) and an outlet (12) that are interconnected. The inlet (11) is adapted to be connected to the suction port of the floor brush (1000). The first connecting seat (10) has a first snap-fit ​​part (13) on the side wall adjacent to the outlet (12). The suction pipe (20) is an integrally formed structural component and its inlet end (24) is connected to the outlet (12) of the first connecting seat (10). The suction pipe (20) has a second snap-fit ​​part (221) on the side wall adjacent to the inlet end (24). The first snap-fit ​​part (13) and the second snap-fit ​​part (221) are snap-fitted and fixed.

2. The air duct assembly of the floor brush according to claim 1, characterized in that, One of the first snap-fit ​​part (13) and the second snap-fit ​​part (221) is a slot and the other is a snap-fit ​​protrusion. The inlet end (24) of the suction pipe (20) extends at least partially into the first connecting seat (10) and the snap-fit ​​protrusion engages with the slot.

3. The air duct assembly for the floor brush according to claim 1, characterized in that, The first connecting seat (10) has a limiting groove (14) at the end corresponding to the outlet (12), and the suction pipe (20) has a limiting protrusion (222) on the side wall near the inlet end (24). The limiting protrusion (222) and the limiting groove (14) abut and limit each other.

4. The air duct assembly of the floor brush according to claim 1, characterized in that, The suction pipe (20) includes a duct body (21), an inlet connector (22) and an outlet connector (23). The inlet connector (22) and the outlet connector (23) are respectively located at both ends of the duct body (21) and are integrally injection molded structural components with the duct body (21). The second snap-fit ​​part (221) is located at the inlet connector (22).

5. The air duct assembly for the floor brush according to claim 1, characterized in that, The suction pipe (20) is fitted with a first sealing ring (223) on the outer wall near the inlet end (24). The first sealing ring (223) is radially sealed between the outer wall of the suction pipe (20) and the inner wall of the first connecting seat (10).

6. The air duct assembly of the floor brush according to claim 1, characterized in that, It also includes a sealing gasket (224) that is axially sealed between the first connecting seat (10) and the end of the suction pipe (20) corresponding to the inlet end (24).

7. A floor brush air duct assembly, characterized in that, include: A first connecting seat (10) has an inlet (11) and an outlet (12) that are in communication with each other, the inlet (11) being adapted to be connected to the suction port of a floor brush (1000); A suction pipe (20) is provided, wherein the suction pipe (20) and the first connecting seat (10) are non-integral injection molded structural components, the inlet end (24) of the suction pipe (20) extends at least partially into the first connecting seat (10) and communicates with the outlet (12), and the outer wall of the suction pipe (20) and the inner wall of the first connecting seat (10) are sealed together radially between the suction pipe (20); and / or The first connecting seat (10) and the end of the suction pipe (20) corresponding to the inlet end (24) are sealed together in the axial direction of the suction pipe (20).

8. The air duct assembly of the floor brush according to claim 7, characterized in that, The suction pipe (20) is fitted with a first sealing ring (223) on the outer wall near the inlet end (24). The first sealing ring (223) seals the outer wall of the suction pipe (20) and the inner wall of the first connecting seat (10) in the radial direction.

9. The air duct assembly for the floor brush according to claim 7, characterized in that, It also includes a sealing gasket (224), the inner wall of the first connecting seat (10) extends inward at least partially to form a limiting step (15), the limiting step (15) and the end of the inlet end (24) are disposed opposite each other in the axial direction, and the sealing gasket (224) seals against the end of the limiting step (15) and the end of the inlet end (24) in the axial direction.

10. The air duct assembly of the floor brush according to claim 7, characterized in that, The first connecting seat (10) is provided with a connecting part (16), which is adapted to be connected to the floor brush (1000). The connecting part (16) includes a first connecting part (161) and a second connecting part (162). The first connecting part (161) is located on the front side of the first connecting seat (10), and the second connecting part (162) is located on at least one side of the first connecting seat (10) in the left-right direction.

11. The air duct assembly for the floor brush according to claim 10, characterized in that, The first connecting seat (10) includes an upper cover (17) and a lower cover (18). The inlet (11) and outlet (12) of the first connecting seat (10) are respectively disposed at the front and rear ends of the upper cover (17). The connecting part (16) is disposed on the upper cover (17). The lower cover (18) is disposed on the lower side of the upper cover (17) and is welded and fixed to the upper cover (17).

12. The air duct assembly for the floor brush according to claim 11, characterized in that, The top cover (17) is a rubber-coated part.

13. The air duct assembly of the floor brush according to claim 7, characterized in that, The first connecting seat (10) is provided with a first snap-fit ​​part (13) on the side wall near the outlet (12), and the sewage suction pipe (20) is provided with a second snap-fit ​​part (221) on the side wall near the inlet end (24). The first snap-fit ​​part (13) and the second snap-fit ​​part (221) are snap-fitted and fixed.

14. The air duct assembly of the floor brush according to claim 7, characterized in that, It also includes a second connector (30) adapted to be connected to the suction pipe (20), at least a portion of the suction pipe (20) near the outlet end (25) extending into the second connector (30), and the outer wall of the suction pipe (20) and the inner wall of the second connector (30) are sealed together in the radial direction of the suction pipe (20).

15. A floor brush, characterized in that, A duct assembly (100) comprising the floor brush (1000) according to any one of claims 1-6; or a duct assembly (100) comprising the floor brush (1000) according to any one of claims 7-14.

16. A cleaning device, characterized in that, include: The floor brush (1000) as described in claim 15.

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