Dust collection box and cleaning equipment

Abstract

The utility model provides a dust collecting box and cleaning equipment, the dust collecting box comprises a box body and a dust blocking assembly, the dust blocking assembly is connected with the box body, the dust blocking assembly comprises at least one blocking piece, the blocking piece is used for blocking a dust inlet, and the blocking piece can open the dust inlet under the action of negative pressure in the box body. The dust blocking assembly can close the dust inlet through the elasticity of the dust blocking assembly, dust in the dust collecting box is prevented from being separated, when negative pressure is generated in the dust collecting box by the draught fan, the dust blocking assembly is bent towards the interior of the dust collecting box under the action of the negative pressure, the dust inlet is opened, and then dust can be sucked into the dust collecting box. When dust is about to fall off, the elasticity of the dust blocking assembly can push the dust into the dust collecting box, the dust is prevented from continuously falling off outwards, the problem that the dust inlet cannot be closed due to the fact that the dust blocking assembly is blocked by the dust is solved, and the elasticity of the dust blocking assembly can further reduce the phenomenon that the dust blocking assembly is blocked by large-particle dust.

Description

Technical Field

[0001] The present application relates to the technical field of dust collection equipment, and in particular to a dust collection box and a cleaning device. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] At present, there are more and more functions of sweeping robots on the market, which means that some existing functional parameters must be sacrificed to provide space for new functional modules without much change in the overall appearance of the machine. For example, the dust box module has to be reduced in size to make room for the lifting system of the roller brush chamber and the lifting system of the rag. And due to the influence of various functional modules, the distance between the dust inlet and the bottom of the dust box is relatively close, which affects the actual volume of the dust box. When the dust box sucks in a lot of garbage, there is a risk of garbage falling out of the dust inlet, affecting the user experience. Utility Model Content

[0004] The purpose of the present application is to at least solve the problem that the dust box of the existing cleaning equipment is prone to dropping garbage. This purpose is achieved through the following technical solutions:

[0005] The first aspect of the present application provides a dust collection box, comprising:

[0006] A box body, with a receiving cavity formed inside, and the box body is also provided with a dust inlet communicated with the receiving cavity;

[0007] A dust blocking assembly is connected to the box body, and the dust blocking assembly includes at least one blocking piece, which is used to block the dust inlet, and the blocking piece can open the dust inlet under the negative pressure inside the box body.

[0008] The dust box proposed in the present application is applied to dust collection equipment, for example, it is set on a sweeping robot to collect sucked garbage. The present application sets an elastic dust shield assembly at the dust inlet of the dust box. The elasticity of the dust shield assembly itself enables it to close the dust inlet to prevent the dust inside the dust box from escaping. When the fan generates negative pressure in the dust box, the dust shield assembly is bent into the dust box under the action of the negative pressure, so that the dust inlet is opened, and then the dust can be sucked into the dust box. When dust is stuck, the elasticity of the dust shield assembly itself can push the dust into the dust box to prevent it from continuing to escape outward, reducing the problem of being blocked by dust and unable to close the dust inlet. The elasticity of the dust shield assembly can also reduce the phenomenon of being stuck by large particles of dust.

[0009] In addition, the dust collection box according to the present application may also have the following additional technical features:

[0010] In some embodiments of the present application, the baffle is an elastic member, and at the dust inlet position, along a direction perpendicular to the outside world to the accommodating cavity, the first end of the baffle is connected to the box body, and the second end of the baffle can be bent into the accommodating cavity under the action of the negative pressure to open the dust inlet. The number of baffles is set according to actual needs, so that the dust collecting box has better adaptability, and the baffle structure is simple and low in cost, and can meet the needs of bending under negative pressure and normally closing the dust inlet by itself.

[0011] In some embodiments of the present application, external dust can enter the accommodating cavity from the dust inlet under the action of the negative pressure, and the baffle can be reset under the action of its own elastic force to block the dust inlet. The baffle can normally close the dust inlet through its own elasticity to reduce the phenomenon of dust leaking out of the dust collection box.

[0012] In some embodiments of the present application, the dust shield assembly further includes a mounting portion, the shielding piece includes a transition portion and a dust shielding portion, the mounting portion is connected to the outer surface of the box body, the first end of the transition portion is connected to the mounting portion, the second end of the transition portion is connected to the dust shielding portion, and the dust shielding portion shields at least a portion of the dust inlet. The mounting portion and the transition portion make the connection between the shielding piece and the dust collection box more reliable, and the dust shielding portion can prevent dust from flowing out.

[0013] In some embodiments of the present application, a mounting groove is provided on the outer surface of the box body, the mounting groove is arranged on the circumferential outer side of the dust inlet, and the mounting portion is installed in the mounting groove. The connection is more reliable through the snap-fitting of the mounting groove and the mounting portion.

[0014] In some embodiments of the present application, the number of the baffles is two, and at the dust inlet position, along a direction perpendicular to the outside to the accommodating cavity, the two baffles are arranged opposite to each other. The door-shaped dust shield assembly design enables the baffles to reduce the dust in the dust box from escaping.

[0015] In some embodiments of the present application, the two baffles are arranged at an angle, and the second end of the baffle extends toward the interior of the accommodating cavity, so that the baffle can be opened more easily by negative pressure, and the baffle can better prevent dust in the dust box from flowing out.

[0016] In some embodiments of the present application, the number of the baffle is one, part of the baffle is located in the accommodating cavity, and the second end of the baffle abuts against the cavity wall of the accommodating cavity. The baffle abuts against the cavity wall of the accommodating cavity, so that the dust in the accommodating cavity is blocked by the baffle when it tends to fall out, thereby reducing the phenomenon of dust accidentally falling out.

[0017] In some embodiments of the present application, along the vertical direction, along the vertical direction, the second end of the blocking piece is arranged above the first end. The connection position of the dust shielding assembly and the dust collecting box is arranged at the bottom end of the dust inlet, so that the dust shielding assembly can open the top end of the dust inlet. Since the opening position of the dust inlet is higher, the dust deposited at the bottom of the accommodating cavity can be reduced from falling out.

[0018] In some embodiments of the present application, the dust shield assembly is an integrally formed structure, which has higher strength, is easier to install and has better sealing performance.

[0019] The second aspect of the present application provides a cleaning device, including a dust box, which is the dust box proposed in the first aspect of the present invention, and also includes a negative pressure device, which is arranged in the accommodating chamber or is connected to the accommodating chamber, and the baffle can open the dust inlet under the action of the negative pressure generated by the negative pressure device.

[0020] The cleaning device proposed in the second aspect of the present application can be a device such as a sweeping robot that can vacuum by creating negative pressure. The cleaning device collects the sucked dust through a dust box. The dust box has a dust shield assembly that can swing to open the dust inlet. When the cleaning device is not working, the elasticity of the dust shield assembly itself drives the dust shield assembly to lean against the box body of the dust box to close the dust inlet. When the cleaning device is working, negative pressure is generated in the dust box. The dust shield assembly swings toward the inside of the dust box under the action of the negative pressure to open the dust inlet. The dust shield assembly can reduce the phenomenon that large particles of dust jam the dust shield assembly to the point where it cannot be closed, thereby further strengthening the sealing of the dust box and preventing dust leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0022] Figure 1 Schematically shows a cross-sectional structural diagram of a dust collection box according to a first embodiment of the present application;

[0023] Figure 2 The structure diagram of the dust shield assembly according to the first embodiment of the present application is schematically shown from a first viewing angle;

[0024] Figure 3 The structure diagram of the dust shield assembly according to the first embodiment of the present application is schematically shown from a second viewing angle;

[0025] Figure 4The structure diagram of the dust collecting box according to the second embodiment of the present application is schematically shown;

[0026] Figure 5 The structural diagram of the dust shield assembly according to the second embodiment of the present application is schematically shown.

[0027] The reference numerals are as follows:

[0028] 10. Box body; 11. Accommodating chamber; 12. Dust inlet; 13. Air outlet; 14. Mounting slot;

[0029] 20. Dust shield assembly; 21. Baffle; 211. Transition portion; 212. Dust shield portion; 213. Abutment surface; 22. Mounting portion. DETAILED DESCRIPTION

[0030] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0031] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0032] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0033] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0034] like Figures 1 to 5 As shown, Figure 1 The A direction refers to the vertical direction, and the B direction refers to the dust inlet direction. The first aspect of the present application proposes a dust collecting box, including a box body 10 and a dust shield assembly 20. The box body 10 has a accommodating chamber 11 formed inside, and the box body 10 is also provided with a dust inlet 12 connected to the accommodating chamber 11; the dust shield assembly 20 is connected to the box body 10 and is arranged at the dust inlet 12, the dust shield assembly 20 includes at least one shielding piece, the dust shield assembly 20 is elastic, and the dust shield assembly 20 usually closes the dust inlet 12 due to its own elasticity. When negative pressure is generated in the accommodating chamber 11, the dust shield assembly 20 is swung toward the accommodating chamber 11 due to the negative pressure to open the dust inlet 12.

[0035] It is understandable that the dust box can be a cubic structure, one side of the dust box is provided with an air outlet 13, the air outlet 13 is used to connect the air duct and the fan, the dust box defines a receiving chamber 11 inside, the fan operation can form a negative pressure in the receiving chamber 11, the dust box is provided with a dust inlet 12 on the side opposite to the air outlet 13, the dust inlet 12 is used to communicate with the dust inlet duct, and is used to introduce the dust sucked by the dust collection device into the receiving chamber 11, the dust inlet 12 can be a rectangular or circular or waist hole type structure, a dust shield assembly 20 is provided at the dust inlet 12, the dust shield assembly 20 has a part that blocks the dust inlet 12, and the dust shield assembly 20 is elastic, and the elastic force of the dust shield assembly 20 drives the dust shield assembly 20 to close the dust inlet 12, specifically, the elasticity of the dust shield assembly 20 can be achieved by its own material properties, for example, the dust shield assembly 20 is made of elastic material (rubber or silicone, etc.), and can also be achieved by a spring driving the baffle. It can be set according to actual needs. The connection between the dust shield assembly 20 and the dust box can be achieved by pasting, or the dust shield assembly 20 can be fixed to the dust box by screws. Since the dust shield assembly 20 itself is elastic, when negative pressure is generated in the accommodating chamber 11, the dust shield assembly 20 will bend into the accommodating chamber 11, so that the dust inlet 12 is opened, and the dust is sucked into the accommodating chamber 11 by the negative pressure and collected. When there is no negative pressure in the accommodating chamber 11, the elasticity of the dust shield assembly 20 itself resets it, closes the dust inlet 12, and reduces the dust in the accommodating chamber 11 from falling. The elasticity of the dust shield assembly 20 itself can bounce off large dust particles, preventing large dust particles from being stuck between the dust shield assembly 20 and the dust box, affecting the closure of the dust shield assembly 20.

[0036] The dust box proposed in the present application is applied to a dust collection device, for example, it is set on a sweeping robot to collect the sucked-in garbage. The present application sets an elastic dust shield assembly 20 at the dust inlet 12 of the dust box. The elasticity of the dust shield assembly 20 enables it to close the dust inlet 12 to prevent the dust inside the dust box from escaping. When the fan generates negative pressure in the dust box, the dust shield assembly 20 is bent into the dust box under the action of the negative pressure, so that the dust inlet 12 is opened, and the dust can be sucked into the dust box. When the dust is about to escape, the elasticity of the dust shield assembly 20 can push the dust into the dust box to prevent it from continuing to escape outward, reducing the problem of being blocked by dust and unable to close the dust inlet 12. The elasticity of the dust shield assembly 20 can also reduce the phenomenon of being stuck by large particles of dust.

[0037] In some embodiments of the present application, the dust shield assembly 20 includes at least one baffle 21. The number of baffles 21 can be determined according to actual needs. For example, when the dust inlet 12 is large, multiple baffles 21 can be provided to control the opening and closing of the dust inlet 12. When the area of ​​the dust inlet 12 is small, one baffle 21 can be provided to save costs. Along the radial direction of the dust inlet 12, the first end of the baffle 21 is connected to the box body 10. The baffle 21 is extended along the radial direction of the dust inlet 12 as a whole. The first end of the baffle 21 refers to one end of the baffle 21 along the radial direction of the dust inlet 12. The first end of the baffle 21 can be connected to the box body 10. The connection method can be adhesive connection or bolt connection. The second end of the baffle 21 refers to one end of the baffle 21 facing the axis of the dust inlet 12. The end is suspended so that it can swing under negative pressure. The second end of the baffle 21 swings when it is affected by the negative pressure of the accommodating chamber 11. The number of baffles 21 is set according to actual needs, so that the dust collecting box has better adaptability, and the baffle 21 has a simple structure and low cost, and can meet the needs of bending under negative pressure and normally closing the dust inlet 12 by itself.

[0038] See also Figures 1 to 3 In some embodiments of the present application, the number of baffles 21 can be set to two, and along the radial direction of the dust inlet 12, the two baffles 21 are arranged opposite to each other, that is, one baffle 21 is arranged at the top of the dust inlet 12, and the other baffle 21 is arranged at the bottom of the dust inlet 12. The second ends of the two baffles 21 can abut against each other or retain a certain distance, so that the two baffles 21 respectively cover the upper half and the lower half of the dust inlet 12, wherein the baffle 21 located at the lower side can be connected to the box body 10 at the bottom end of the dust inlet 12, so that part of the bottom end of the dust inlet 12 is closed by the baffle 21, reducing the phenomenon of dust falling out. The baffle 21 located at the top can be bent into the accommodating cavity 11 under the negative pressure in the accommodating cavity 11 to open the dust inlet 12. In this embodiment, two baffles 21 are provided to open and close the dust inlet 12, and the structure is simple and the cost is low. The two baffles 21 can be connected together through an annular mounting portion 22 and mounted on the box body 10 for fixation. The door-shaped dust shielding assembly 20 is designed so that the baffles 21 can reduce the escape of dust in the dust collection box.

[0039] See also Figure 1In some embodiments of the present application, the baffle 21 is set at an angle to the axial direction of the dust inlet 12, that is, the baffle 21 is not perpendicular to the axial direction of the dust inlet 12, but is set at an angle. The baffle 21 can be set at an angle toward the accommodating chamber 11, so that the baffle 21 is easier to bend under the negative pressure in the accommodating chamber 11 than the solution perpendicular to the axis of the dust inlet 12, so that the dust inlet 12 can be opened under a smaller suction force. Reduce the phenomenon that when there is a lot of dust in the accommodating chamber 11 and there is a certain blockage in the air outlet 13, the suction force is insufficient, resulting in difficulty in dust collection. And one of the baffles 21 is set at an angle to the other baffle 21. On the one hand, the baffle 21 can be opened more easily by the negative pressure, and on the other hand, the baffle 21 can better block the dust in the dust box from flowing out.

[0040] See also Figures 1 to 5 In some embodiments of the present application, the dust shield assembly 20 also includes a mounting portion 22. The function of the mounting portion 22 is to fix the baffle 21 on the box body 10. The mounting portion 22 can be an annular sheet structure. When there are multiple baffles 21, they are arranged on the mounting portion 22 at intervals along the circumference of the mounting portion 22. As a match, the box body 10 is provided with an annular groove that is compatible with the mounting portion 22. The mounting portion 22 is embedded in the annular groove for fixation. The mounting portion 22 can be fixed by gluing or bolting. The baffle 21 includes a transition portion 211 and a dust blocking portion 212, the transition portion 211 and the dust blocking portion 212 can be integrally formed, the mounting portion 22 is connected to the outer surface of the box body 10, the first end of the transition portion 211 is connected to the mounting portion 22, the transition portion 211 and the mounting portion 22 can be integrally formed, the second end of the transition portion 211 extends into the accommodating cavity 11 along the radial direction of the dust inlet 12, the transition portion 211 extends along the hole wall of the dust inlet 12 and is attached to the hole wall, the dust blocking portion 212 is connected to the second end of the transition portion 211, the dust blocking portion 212 can be integrally formed with the transition portion 211, the dust blocking portion 212 is a sheet-shaped structure, and the shape of the dust blocking portion 212 can be adapted to the dust inlet 12, that is, the dust blocking portion 212 is circular or rectangular or rounded rectangular The dust blocking portion 212 extends along the radial direction of the dust inlet 12, so that the dust blocking portion 212 can block at least part of the dust inlet 12. The mounting portion 22, the extension portion and the dust blocking portion 212 are similar to a Z-shaped structure. On the one hand, the mounting portion 22 can be connected to the outer surface of the box body 10, and the installation reliability is good. On the other hand, the connection structure between the extension portion, the mounting portion 22 and the dust blocking portion 212 can seal the dust inlet 12 to prevent the dust in the accommodating cavity 11 from falling. Furthermore, the dust blocking portion 212 can be arranged in the accommodating cavity 11 so that the elasticity of the baffle 21 itself drives the dust blocking portion 212 to abut against the box body 10 to seal the dust inlet 12. When the dust tends to fall out, the box body 10 can block the dust blocking portion 212 to isolate the dust in the accommodating cavity 11. In this embodiment, the mounting portion 22 and the transition portion 211 make the connection between the baffle 21 and the dust collecting box more reliable, and the dust blocking portion 212 can prevent the dust from flowing out.

[0041] See also Figure 1 and Figure 4 In some embodiments of the present application, a mounting groove 14 is provided on the outer surface of the box body 10. The mounting groove 14 can be provided on the circumferential outer side of the dust inlet 12, that is, on the outer surface of the box body 10, to fix the mounting portion 22 of the dust shielding assembly 20. The mounting groove 14 can be an annular groove structure surrounding the dust inlet 12, or an arc-shaped groove structure. The cross-section of the mounting groove 14 can be rectangular or wedge-shaped. The mounting groove 14 can be directly connected to the dust inlet 12 along its radial inner side to facilitate processing. As a match, the mounting portion 22 can be an annular sheet structure or an arc-shaped structure. A fixing glue is applied in the mounting groove 14 to stick the mounting portion 22 in the mounting groove 14, or a bolt hole is provided in the mounting groove 14, and the mounting portion 22 is fixed in the mounting groove 14 by bolts. The mounting groove 14 is provided on the circumferential outer side of the dust inlet 12, and the mounting portion 22 is installed in the mounting groove 14. The connection is more reliable through the snap-fitting of the mounting groove 14 and the mounting portion 22.

[0042] See also Figure 1 and Figure 4 In some embodiments of the present application, part of the baffle 21 is located in the accommodating cavity 11, and the elastic force of the baffle 21 drives the baffle 21 to abut against the cavity wall of the accommodating cavity 11, that is, the baffle 21 extends into the accommodating cavity 11, and the baffle 21 normally abuts against the inner wall of the accommodating cavity 11, so that when the dust in the accommodating cavity 11 tends to fall out, it can be blocked by the baffle 21, and the baffle 21 is blocked by the box body 10 and will not open outward, thereby reducing the phenomenon of dust falling out. The baffle 21 is driven by its own elastic force to abut against the cavity wall of the accommodating cavity 11, so that when the dust in the accommodating cavity 11 tends to fall out, it is blocked by the baffle 21, thereby reducing the phenomenon of dust accidentally falling out.

[0043] See also Figure 4 and Figure 5 In some embodiments of the present application, the number of the baffle 21 is one, and the baffle 21 is also connected to the box body 10 through the mounting portion 22, and the mounting portion 22 is connected to the outer surface of the box body 10 located below the dust inlet 12. The baffle 21 includes a transition portion 211 and a dust blocking portion 212, one end of the transition portion 211 is connected to the mounting portion 22, and the other end of the transition portion 211 extends toward the accommodating cavity 11. The dust blocking portion 212 is a sheet-shaped structure and is connected to the transition portion 211, and the transition portion 211 is arranged at the bottom end of the dust inlet 12. Such a structure enables the baffle 21 to close the bottom of the dust inlet 12, so that the openable position of the dust inlet 12 is higher, reducing the phenomenon of dust falling out, and the baffle 21 is easy to bend and can open the dust inlet 12 when the negative pressure is small.

[0044] See also Figure 1 and Figure 4In some embodiments of the present application, the axis of the dust inlet 12 is set at an angle to the bottom surface of the accommodating cavity 11, and the dust inlet 12 is set tilted downward, so that the dust inlet 12 and the dust suction channel are conveniently arranged, and the dust suction effect from below is better.

[0045] See also Figure 4 In some embodiments of the present application, when the baffle 21 is set at an angle with the vertical direction, the baffle 21 has an abutting surface 213, and the abutting surface 213 is parallel to the vertical direction. The position of the box body 10 located in the accommodating cavity 11 is provided with a limiting surface parallel to the vertical direction, and the limiting surface can be set above the dust inlet 12, and the abutting surface 213 is set at the top of the baffle 21. The force applied by the box body 10 on the baffle 21 of the above structure is set at an angle with the elastic force of the baffle 21, so that the baffle 21 is more stable when abutting against the box body 10, and the phenomenon that the baffle 21 is squeezed open by dust and causes dust to escape is reduced.

[0046] See also Figure 1 and Figure 4 In some embodiments of the present application, the bottom end of the baffle 21 is connected to the box body 10 in the vertical direction, and the top end of the baffle 21 swings when negative pressure is generated in the accommodating chamber 11 to open the dust inlet 12. The connection position of the dust shield assembly 20 and the dust collection box is set at the bottom end of the dust inlet 12, so that the dust shield assembly 20 can open the top end of the dust inlet 12. Since the opening position of the dust inlet 12 is higher, the dust deposited at the bottom of the accommodating chamber 11 can be reduced from falling out.

[0047] See also Figure 2 , 3 and Figure 5 In some embodiments of the present application, the dust shield assembly 20 is an integrally formed structure. The various parts of the dust shield assembly 20 can be made by an injection molding process, so that the connection between the various parts is more reliable and has no gaps. The integrally formed structure has higher strength, is easier to install, and has better sealing.

[0048] The second aspect of the present application provides a dust collection device, including a dust collection box, and the dust collection box is the dust collection box provided in the first aspect of the present invention.

[0049] The vacuuming device proposed in the second aspect of the present application can be a device such as a sweeping robot that can vacuum by creating negative pressure. The vacuuming device collects the sucked dust through a dust box. The dust box has a dust shield assembly 20 that can swing to open the dust inlet 12. When the vacuuming device is not working, the elasticity of the dust shield assembly 20 drives the dust shield assembly 20 to lean against the box body 10 of the dust box to close the dust inlet 12. When the vacuuming device is working, negative pressure is generated in the dust box. The dust shield assembly 20 swings toward the inside of the dust box under the action of the negative pressure to open the dust inlet 12. The dust shield assembly 20 can reduce the phenomenon that large particles of dust will jam the dust shield assembly 20 to the point where it cannot be closed, thereby further strengthening the sealing of the dust box and preventing dust leakage.

[0050] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A dust collection box, characterized in that: include: A box body, with a receiving cavity formed inside, and the box body is also provided with a dust inlet communicated with the receiving cavity; A dust blocking assembly is connected to the box body, and the dust blocking assembly includes at least one blocking piece, which is used to block the dust inlet, and the blocking piece can open the dust inlet under the negative pressure inside the box body.

2. The dust box according to claim 1, characterized in that: The baffle is an elastic member. At the dust inlet, along a direction perpendicular to the outside to the accommodating chamber, the first end of the baffle is connected to the box body, and the second end of the baffle can be bent into the accommodating chamber under the action of the negative pressure to open the dust inlet.

3. The dust box according to claim 2, characterized in that: External dust can enter the accommodating cavity from the dust inlet under the action of the negative pressure, and the blocking piece can be reset under the action of its own elastic force to block the dust inlet.

4. The dust box according to claim 3, characterized in that: The dust shield assembly also includes a mounting portion, and the shield plate includes a transition portion and a dust shield portion, the mounting portion is connected to the outer surface of the box body, the first end of the transition portion is connected to the mounting portion, and the second end of the transition portion is connected to the dust shield portion, and the dust shield portion blocks at least a portion of the dust inlet.

5. The dust box according to claim 4, characterized in that: An installation groove is provided on the outer surface of the box body, the installation groove is arranged on the circumferential outer side of the dust inlet, and the installation part is installed in the installation groove.

6. The dust box according to any one of claims 2 to 5, characterized in that: The number of the baffles is two, and at the dust inlet position, the two baffles are arranged opposite to each other along a direction perpendicular to the outside to the accommodating chamber.

7. The dust box according to claim 6, characterized in that: The two blocking sheets are arranged at an angle, and the second ends of the blocking sheets extend toward the interior of the accommodating cavity.

8. The dust box according to any one of claims 2 to 5, characterized in that: The number of the baffle is one, a portion of the baffle is located in the accommodating cavity, and the second end of the baffle abuts against the cavity wall of the accommodating cavity.

9. The dust box according to claim 8, characterized in that: In the vertical direction, the second end of the blocking piece is arranged above the first end.

10. The dust box according to any one of claims 1 to 5, characterized in that: The dust shield assembly is an integrally formed structure.

11. A cleaning device, characterized in that: It comprises a dust collecting box according to any one of claims 1 to 10, and also comprises a negative pressure device, wherein the negative pressure device is arranged in the accommodating cavity or is connected to the accommodating cavity, and the baffle can open the dust inlet under the action of the negative pressure generated by the negative pressure device.

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