Garbage-recovery dust box and sweeper

Abstract

A garbage-recovery dust box and a sweeper, which relate to the technical field of sweepers and solve the technical problem that the accommodating volume of a dust box or a wastewater tank is small due to an irrational structural configuration. The garbage-recovery dust box comprises a dust box body (1) having a dust-accommodating cavity, and further comprises a dust-suction fan opening (2) and a dust box dust-collection opening (3), which are both in communication with the dust-accommodating cavity, wherein the dust box dust-collection opening (3) is disposed at the left-rear or right-rear corner of the dust box body (1), and is configured to discharge garbage from the dust-accommodating cavity during dust collection; and the dust-suction fan opening (2) is disposed at the right-rear or left-rear corner of the dust box body (1), and is configured to provide a path for a garbage suction force during dust collection. The sweeper comprises the dust box. By means of respectively arranging the dust box dust-collection opening (3) and the dust-suction fan opening (2) at the left-rear and right-rear corners of the dust box, the dust box dust-collection opening (3) and the dust-suction fan opening (2) can have larger cross-sectional areas, thereby facilitating efficient input of the garbage suction force; in addition, resistance can also be reduced, the efficiency of garbage collection during dust collection can be improved, garbage blockage is avoided, and the provision of a dust box and a wastewater tank with relatively large accommodating volumes can be ensured.

Description

Garbage collection dust box and sweeper

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on August 25, 2023, with application number 202311087050.3 and invention name “A garbage collection dust box and sweeping machine”, the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the technical field of sweeping machines, and in particular to a garbage collection dust box and a sweeping machine. Background Art

[0003] With the advancement of technology in recent years, cleaning robots have become increasingly intelligent, capable of cleaning within pre-defined areas, significantly freeing people's hands. The internal installation space of a sweeping robot is small, and the interconnected components require specific placement of auxiliary components based on the distribution of functional modules. The dust box is located at the rear of the sweeper, while the suction fan, which provides suction to the dust box, is located to the left, right, or rear of the dust box. Currently, many sweeping robots have real-time self-cleaning capabilities and are equipped with a sewage tank. In line with the "sweep first, mop later" principle, the sewage tank is located behind the dust box.

[0004] The applicant has discovered that the related technology has at least the following technical problems:

[0005] 1. When the vacuum fan is set on the left or right side of the dust box, the driving wheels are also located on the left and right sides of the dust box, which will result in a smaller dust box space; 2. When the vacuum fan is set behind the dust box, the sewage tank is also located behind the dust box, which will compress the sewage tank volume; 3. The dust collecting port of the dust box and the vacuum fan port are close to each other. During the vacuuming process, most of the garbage in the dust box accumulates at the fan port. As a result, when collecting dust, the closer most of the garbage is to the dust collecting port of the dust box, the more garbage will pass through the dust collecting port of the dust box per unit time at the beginning of dust collection, which will cause the dust collection air duct to be easily blocked during the dust collection process.

[0006] Summary of the Invention

[0007] The purpose of the present disclosure is to provide a garbage collection dust box and a sweeper to solve the technical problem in the related art that the structure setting is unreasonable, resulting in a small volume of the dust box or the sewage tank.

[0008] To achieve the above objectives, the present disclosure provides the following technical solutions:

[0009] In a first aspect, the present disclosure provides a garbage collection dust box, comprising a dust box body having a dust holding cavity, and further comprising a dust suction fan port and a dust box dust collecting port both connected to the dust holding cavity, wherein:

[0010] The dust box dust collecting port is arranged at the left rear or right rear corner of the dust box body, and is used to discharge the garbage in the dust chamber during dust collection;

[0011] The dust suction fan port is arranged at the right rear or left rear corner of the dust box body, and is configured to provide a path for garbage suction force when vacuuming.

[0012] In some embodiments, a filter assembly is further included, which is arranged on the inner side of the dust suction fan port to prevent garbage from entering the outer side of the dust suction fan port during dust suction.

[0013] In some embodiments, the filter assembly includes a HEPA filter and a filter duct, the HEPA filter is arranged at the rear of the dust holding chamber, and the filter duct is located between the dust box body and the HEPA filter; the dust suction fan port is located at a corner at one end of the filter duct.

[0014] In some embodiments, the HEPA filter is vertically arranged on the top of the dust box body.

[0015] In some embodiments, along the direction from the dust suction fan port to the dust collection port of the dust box, the distance between the HEPA filter and the rear wall of the dust box body gradually decreases to form a filter duct that is wide at one end and narrow at the other end, and the dust suction fan port is located on one side of the wide filter duct.

[0016] In some embodiments, the widest part of the filter air duct is 13 mm, and / or the narrowest part of the filter air duct is 5 mm.

[0017] In some embodiments, the narrow end of the filter air duct extends to the mouth of the dust collecting port of the dust box.

[0018] The dust box provided by the present invention can not only make its cross-sectional area larger, facilitating efficient input of garbage suction force, but also reduce resistance, improve the efficiency of garbage collection during dust collection, and avoid garbage blockage by arranging the dust collection port and the dust suction fan port at the left rear and right rear corners of the dust box respectively.

[0019] In a second aspect, the present disclosure provides a sweeping machine comprising the dust box.

[0020] In some embodiments, the sweeper further includes a fan duct and a dust suction fan, and the dust suction fan is connected to the dust suction fan port through the fan duct; the dust suction fan and the dust suction fan port are located on the same side, both located at the right rear or left rear corner of the dust box body.

[0021] In some embodiments, the sweeper further includes a dust collection duct and a whole-machine dust collection port, and the whole-machine dust collection port is connected to the dust box dust collection port through the dust collection duct; the whole-machine dust collection port and the dust box dust collection port are located on the same side, both located at the left rear or right rear corner of the dust box body.

[0022] In some embodiments, the dust collecting air duct is a straight channel or a channel with a large acute angle.

[0023] In some embodiments, the fan duct is a straight channel or a channel with a large acute angle.

[0024] The sweeping machine provided by the present invention has a dust collection port and a dust suction fan arranged on the side and rear of the dust box. The air duct has a small corner, and the wind resistance it generates is also small. At the same time, the volume of the dust box and the sewage tank is guaranteed, which is conducive to the reasonable layout of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] FIG1 is a schematic structural diagram of a garbage collection dust box disclosed herein;

[0027] FIG2 is an exploded view of the structure of the dust box of the present invention;

[0028] FIG3 is a schematic diagram of a partial structure of the dust box disclosed in the present invention.

[0029] In the figure, 1. Dust box body; 2. Dust suction fan port; 3. Dust collection port of dust box; 4. HEPA filter; 5. Filter air duct; 6. Fan air duct; 7. Dust suction fan; 8. Dust collection air duct; 9. Dust collection port of the whole machine; 10. Dust inlet; 11. Bracket; 12. Dust box upper shell; 13. Dust box lower shell. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the present disclosure more clear, the technical solutions of the present disclosure are described in detail below. Obviously, the embodiments described are only some of the embodiments of the present disclosure, and not all of them. Based on the embodiments of the present disclosure, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0031] As shown in FIG1 , the present disclosure provides a garbage collection dust box, comprising a dust box body 1 having a dust holding cavity, a dust suction fan port 2 and a dust box dust collecting port 3 both of which are connected to the dust holding cavity, wherein:

[0032] The dust box dust collecting port 3 is arranged at the left rear or right rear corner of the dust box body 1, which is used to discharge the garbage in the dust chamber during dust collection; in this embodiment, as shown in Figure 1, the dust box body 1 is a rectangular structure, and the orientation in Figure 1 is used as an embodiment for specific description. In Figure 1, the upper side of the dust box body 1 is the front, the lower side is the rear, the left side is the left, and the right side is the right. In Figure 1, an embodiment in which the dust box dust collecting port 3 is arranged at the left side and rear side corners of the dust box body 1 is illustrated.

[0033] The dust suction fan port 2 is located at the right or left rear corner of the dust box body 1 and is configured to provide a path for the suction force to extract the garbage during vacuuming. As shown in Figure 1, an embodiment in which the dust suction fan port 2 is located at the right side and rear side corners of the dust box body 1 is shown, that is, an embodiment in which the dust suction fan port 2 is located at the right rear corner.

[0034] The dust box body 1 further includes a dust inlet 10 , which is arranged in the middle of the front side of the dust box body 1 and is the entrance for garbage to enter the dust box from the outside.

[0035] It should be noted here that the dust box dust collection port 3 and the dust suction fan port 2 are set at different positions, one is at the corner on the left, and the other is at the corner on the right. Increasing the distance between the two ports can not only make their cross-sectional area larger, which is convenient for efficient input of garbage suction force, but also reduce resistance, reduce the probability of dust collection air duct blockage, and improve the efficiency of garbage collection during dust collection.

[0036] In some embodiments, a filter assembly is further included, which is arranged inside the dust suction fan port 2 to prevent garbage from entering the outside of the dust suction fan port 2 during dust suction. The filter assembly can ensure that the air sucked by the dust suction fan passes through, but the sucked garbage cannot pass through, thereby ensuring the safety of the dust suction fan.

[0037] In this embodiment, the filter assembly includes a HEPA filter 4 and a filter duct 5, wherein the HEPA filter 4 is fixed inside the dust box body 1 by a bracket; the HEPA filter 4 is arranged at the rear of the dust holding chamber, that is, the rear side of the dust box body 1. It should be noted here that the front and back in this disclosure, for the sweeper, refer to the front direction of the sweeper and the rear direction of the reverse walking direction. In this embodiment, the dust box body 1 is installed in the middle of the sweeper, and the filter duct 5 is located between the dust box body 1 and the HEPA filter 4. Specifically, the filter duct 5 is enclosed by the dust box body 1, the dust suction fan port 2, and the HEPA filter 4. At this time, the bracket for fixing the HEPA filter can be set to only a left and right fixing bracket, and the dust suction fan port 2 and the dust box dust collecting port 3 can both be set on the dust box body 1; the dust suction fan port 2 is located at the corner of one end of the filter duct 5.

[0038] When the sweeper is in operation, the dust collecting fan starts, and garbage and air are sucked into the dust box body 1 through the dust inlet 10. The air is then filtered by the HEPA filter 4 and enters the filter duct 5 before being drawn out through the dust collecting fan port 2. The HEPA filter 4 ensures that the air is filtered and garbage and debris are prevented from entering the dust collecting fan. The filter duct 5 also ensures that the air drawn by the dust collecting fan can pass through.

[0039] In some embodiments, in order to increase the efficiency of the fan, in this embodiment, the HEPA filter 4 is vertically arranged with respect to the top of the dust box body 1. By adopting this structural arrangement, the height of the HEPA filter 4 can be set to be close to or equal to the height of the dust chamber of the dust box body 1, thereby increasing the height of the HEPA filter 4, thereby increasing the cross-sectional area of ​​the air duct, reducing the air flow resistance, and improving the working efficiency of the fan; if the HEPA filter 4 is fixed on the top of the dust box, since the dust suction fan port 2 is located at the right rear corner of the dust box body 1, and a filter air duct 5 needs to be left between the HEPA filter 4 and the dust suction fan port 2, then the dust box The entire height of the dust holding chamber of the main body 1 needs to be divided into three parts. The first part is a layer of space that enters the dust holding chamber through the dust inlet 10, which is convenient for the entry of garbage, foreign matter and airflow. The second layer is for arranging 4 layers of HEPA filters. The third layer is a layer of space between the HEPA filter 4 and the top of the dust box body 1 as a filter duct 5. With this structure, under the condition that the overall volume of the dust holding chamber is fixed, it is bound to cause the filter duct 5 to have a small cross-section and large wind resistance, and the efficiency of the dust suction fan will be reduced. Therefore, the technical solution of vertically arranging the HEPA filter 4 and the top of the dust box body 1 is adopted, which can ensure that the fan airflow passes through at high speed and improve the working efficiency of the fan.

[0040] As shown in FIG2 , for ease of processing, an open structure can be provided at one end of the dust box body 1, and the opening is blocked by a bracket 11. The bracket 11 is configured to fix the HEPA filter 4. Therefore, when this structure is adopted, the filter duct 5 is enclosed by the HEPA filter 4 and the bracket 11. In this case, the dust suction fan port 2 can be provided on the bracket 11, and the dust box dust collection port 3 is provided on the dust box body 1. When this structure is adopted, the bracket is a box-type or slot-type structure with one end open.

[0041] As shown in FIG2 , the dust box body 1 is a split structure, which is composed of a dust box lower shell 13 and a dust box upper shell 12 . The dust collecting port 3 is arranged on the dust box lower shell 13 , and the dust inlet 10 is also opened on the dust box lower shell 13 .

[0042] During use, the dust suction fan 7 is started, the air flow enters through the dust inlet 10 of the sweeper, then enters the dust holding chamber in the dust box body 1, and then enters the filter air duct 5 after being filtered by the HEPA filter 4, and then reaches the dust suction fan; during the process of the air flow entering, the garbage follows and enters the dust holding chamber.

[0043] In some embodiments, the HEPA filter 4 is arranged at an angle inside the dust box body 1. Specifically, along the direction from the dust suction fan port 2 to the dust collecting port 3 of the dust box, the distance between the HEPA filter 4 and the rear wall of the dust box body 1 gradually decreases, thereby forming a filter duct 5 that is wide at one end and narrow at the other end, and the dust suction fan port 2 is located on one side of the wide filter duct 5. It should be noted here that the inclination referred to here refers to the unequal distance between the HEPA filter 4 and the rear wall of the dust box body 1, which gradually decreases from the side of the dust suction fan port 2 to the side of the dust collecting port 3 of the dust box. Through this inclined setting, the filter duct 5 is wider on the side close to the dust suction fan port 2, and narrower on the side close to the dust collecting port 3 of the dust box. It should be noted that the wider or larger the filter duct 5, the smaller the wind resistance, the more conducive to the passage of airflow, which helps to increase the airflow speed and improve the fan efficiency. By tilting the HEAP filter 4, the area blocking the dust collecting port 3 of the dust box can also be reduced. The larger the area blocking the dust collecting port 3 of the dust box, the larger the dead angle area during dust collection, and garbage is easily accumulated in the dead angle. In the present invention, since the area blocking the dust collecting port 3 of the dust box is reduced, the dead angle area during dust collection is reduced, and it is not easy for garbage to accumulate during dust collection.

[0044] In the dust box disclosed in the present invention, the HEPA filter is located at the rear of the dust box and is tilted (the side close to the dust suction fan port is wider and the side away from it is narrower), as shown in Figure 3, the HEPA filter 4 is tilted, and the filter duct 5 in the dust box is the largest at the dust suction fan port 2, and the farther away from the dust suction fan port 2, the smaller the filter duct 5 is. This not only increases the size of the filter duct 5 between the HEPA filter and the dust box body 1, increases the HEPA length, and reduces wind resistance, but also minimizes the wind resistance at the dust suction fan port 2, increases the suction force in the dust box, and improves the working efficiency of the fan.

[0045] As shown in FIG3 , in some embodiments, the widest part of the filter air duct 5 is 13 mm, and / or the narrowest part of the filter air duct 5 is 5 mm.

[0046] It should be noted here that the maximum size of the filter duct 5 in the dust box after the HEPA filter 4 is tilted is 13 mm (the 13 mm is the same as the cross-sectional size of the dust suction fan port 2), and the minimum size of the filter duct 5 cannot be less than 5 mm, because the smaller the duct, the greater the wind resistance.

[0047] In some embodiments, the narrow end of the filter air duct 5 extends to the mouth of the dust collecting port 3 of the dust box.

[0048] The present disclosure provides a sweeping machine including the above-mentioned dust box.

[0049] In some embodiments, the sweeping machine further includes a fan duct 6 and a dust suction fan 7. The dust suction fan 7 is connected to the dust suction fan port 2 through the fan duct 6. The fan duct is a straight path or a sharply curved path. A straight path is preferred when there are no obstructions or interference from other components. However, if other components need to be avoided, the duct can be arranged at an angle close to 180°. In this embodiment, the fan duct 6 is a straight path.

[0050] In some embodiments, the dust suction fan 7 and the dust suction fan port 2 are located on the same side, both located at the right rear or left rear corner of the dust box body 1.

[0051] In some embodiments, the sweeping machine further includes a dust collection duct 8 and a whole-machine dust collection port 9, which is connected to the dust box dust collection port 3 via the dust collection duct 8. The dust collection duct 8 is a straight path or a sharp curve. A straight path is best when there are no obstructions or interference from other components. However, if there are other components that need to be avoided, the duct can be arranged at an angle close to 180°.

[0052] The dust collecting port 9 and the dust collecting fan port 2 of the whole machine disclosed in the present invention are arranged on the side and rear of the dust box. The fan duct 6 and the dust collecting duct 8 have small corners, and the wind resistance they generate is also small. At the same time, the volume of the dust box and the sewage tank is guaranteed, which is conducive to the reasonable layout of the whole machine.

[0053] In some embodiments, the dust collecting port 9 of the whole machine and the dust collecting port 3 of the dust box are located on the same side, both located at the left rear or right rear corner of the dust box body 1.

[0054] It should be noted here that, in this embodiment, as shown in FIG1 , the front, back, left and right directions are defined as the upper side of the dust box body 1 as the front, the lower side as the back, the left side as the left, and the right side as the right.

[0055] The sweeping machine provided by the present invention has a dust collection port and a dust suction fan arranged on the side and rear of the dust box. The air duct has a small corner, and the wind resistance it generates is also small. At the same time, the volume of the dust box and the sewage tank is guaranteed, which is conducive to the reasonable layout of the whole machine.

[0056] When the sweeper is working, the dust box dust collecting port 3 is closed, the dust suction fan 7 is working, and most of the garbage in the dust box accumulates at the dust suction fan port 2. When the dust collection process starts, the dust suction fan port 2 is closed, and the dust collection fan in the dust collection base station is working. The garbage in the dust box is quickly moved to the dust collection air duct 8 under the action of negative pressure. The closer most of the garbage is to the dust box dust collecting port 3 before dust collection, the more garbage will pass through the dust box dust collecting port 3 per unit time at the beginning of dust collection, and it will be easier to block the dust box dust collecting port 3; conversely, the farther most of the garbage before dust collection is from the dust box dust collecting port 3, the more uniform the amount of garbage passing through the dust box dust collecting port 3 per unit time after dust collection starts, and it will not be easy to block the dust box dust collecting port. This is why the present disclosure arranges the dust box dust collecting port 3 and the dust suction fan port 2 at the left and right corners respectively.

[0057] When in use, the sweeping machine needs to enter the station for dust collection. The station here refers to the dust collection base station, and the dust collection fan is arranged in the base station; when the sweeping machine is sweeping and vacuuming, the dust box dust collection port 3 is closed, and the air flow direction is: outside - dust inlet - dust holding chamber in the dust box - HEPA filter - filter duct - dust collection fan port - fan duct - dust collection fan; the garbage flow direction is: outside - dust inlet - dust holding chamber in the dust box; when the sweeping machine completes the vacuuming operation and needs to enter the station for dust collection, the sweeping machine moves to the dust collection base station, and then the dust collection fan is started. At this time, the dust box dust collection port 3 is opened, and the dust collection fan port 2 is closed. The garbage flow direction is: dust box dust cavity - dust box dust collection port - dust collection duct - whole machine dust collection port - dust bag.

[0058] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A garbage collection dust box, comprising a dust box body having a dust holding cavity, and also comprising a dust suction fan port and a dust box dust collecting port both connected to the dust holding cavity, wherein: The dust box dust collecting port is arranged at the left rear or right rear corner of the dust box body, and is used to discharge the garbage in the dust holding cavity during dust collection; The dust suction fan port is arranged at the right rear or left rear corner of the dust box body, and is configured to provide a path for garbage suction force when vacuuming.

2. The garbage collection dust box according to claim 1, wherein: It also includes a filter assembly arranged on the inner side of the dust suction fan port to prevent garbage from entering the outer side of the dust suction fan port during dust suction.

3. The garbage collection dust box according to claim 2, wherein: The filter assembly includes a HEPA filter and a filter air duct, the HEPA filter is arranged at the rear of the dust chamber, and the filter air duct is located between the dust box body and the HEPA filter; the dust suction fan port is located at a corner at one end of the filter air duct.

4. The garbage collection dust box according to claim 3, wherein: The HEPA filter is vertically arranged on the top of the dust box body.

5. The garbage collection dust box according to claim 3, wherein: Along the direction from the dust suction fan port to the dust collecting port of the dust box, the distance between the HEPA filter and the rear wall of the dust box body gradually decreases to form a filtering air duct that is wide at one end and narrow at the other end, and the dust suction fan port is located on one side of the wide filtering air duct.

6. The garbage collection dust box according to claim 5, wherein: The widest part of the filter air duct is 13 mm.

7. The garbage collection dust box according to claim 5, wherein: The narrowest part of the filter air duct is 5 mm.

8. The garbage collection dust box according to claim 5, wherein: The widest part of the filter air duct is 13 mm, and the narrowest part of the filter air duct is 5 mm.

9. The garbage collection dust box according to claim 5, wherein: The narrow end of the filtering air duct extends to the mouth of the dust collecting port of the dust box.

10. A sweeping machine, comprising the dust box according to any one of claims 1 to 9.

11. The sweeping machine according to claim 10, wherein: The sweeping machine also includes a fan duct and a dust suction fan, and the dust suction fan is connected to the dust suction fan port through the fan duct; the dust suction fan and the dust suction fan port are located on the same side, both located at the right rear or left rear corner of the dust box body.

12. The sweeping machine according to claim 10, wherein: The sweeping machine also includes a dust collection duct and a whole-machine dust collection port, and the whole-machine dust collection port is connected to the dust box dust collection port through the dust collection duct; the whole-machine dust collection port and the dust box dust collection port are located on the same side, both located at the left rear or right rear corner of the dust box body.

13. The sweeping machine according to claim 12, wherein: The dust collecting air duct is a straight channel or a large acute angle curve.

14. The sweeping machine according to claim 11, wherein: The fan air duct is a straight road or a sharp-angled bend.

Images