Dust blocking structure for dust removal equipment and dust removal equipment

Abstract

The embodiment of the utility model relates to the technical field of cleaning appliances, in particular to a dust blocking structure for dust removal equipment and the dust removal equipment, the dust blocking structure for the dust removal equipment comprises a shell and a dust blocking piece, the shell is provided with a cavity and a mounting column, the cavity is provided with a dust suction opening communicated with the outside, and the mounting column is provided with a dust suction opening. The mounting column is at least partially arranged in the cavity and is fixed on the shell; at least part of the dust blocking piece is contained in the cavity, the dust blocking piece is installed on the installation column in a sleeving mode, and the dust blocking piece is used for closing or opening the cavity under the action of pressure. By means of the mode, the dust blocking piece can be fixed to the installation column in a sleeved mode, the installation steps are simple, installation is firmer, and the dust blocking piece is not prone to falling off.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of cleaning tools, and in particular to a dust blocking structure for dust removal equipment and the dust removal equipment. Background Art

[0002] Vacuum cleaners are very common cleaning equipment in family life. Frequent daily use causes a lot of dust to accumulate inside the vacuum cleaner, affecting the use of the vacuum cleaner. The dust shielding mechanism of the existing handheld vacuum cleaner includes an airflow generating device, a dust and gas separation device, an intake pipe, a dust cup and a power supply assembly, etc. Usually, the intake pipe is arranged in parallel with the dust cup, and the intake pipe and the dust cup are connected. The dust shield is usually movably arranged at the inlet where the dust cup is connected to the intake air duct. When the vacuum cleaner is started, dust, garbage and wind enter and are sucked into the intake pipe and into the dust cup. At this time, due to the action of wind force, the dust shield arranged at the air inlet of the dust cup is pushed into the dust cup under the action of wind force, thereby forming an entrance allowing dust, garbage and wind to enter the dust cup.

[0003] However, the inventor of the present utility model found in the process of implementing the present utility model that the current dust shielding sheets are mostly installed on the vacuum cleaner by means of clamping or bonding, which is troublesome to install and easy to fall off. Utility Model Content

[0004] The main technical problem solved by the embodiment of the utility model is to provide a dust shield structure for dust removal equipment. The dust shield can be installed on the outer shell in a sleeve-type manner, which makes the installation easier and less likely to fall off.

[0005] In order to solve the above-mentioned technical problems, a technical solution adopted by the utility model is: to provide a dust shield structure for dust removal equipment, including a shell and a dust shield sheet, the shell is provided with a cavity and a mounting column, the cavity has a dust suction port connected to the outside, the mounting column is at least partially provided in the cavity and fixed to the shell; the dust shield sheet is at least partially accommodated in the cavity, the dust shield sheet is sleeved and installed on the mounting column, and the dust shield sheet is used to close or open the cavity under the action of pressure.

[0006] Optionally, the dust shield includes: a mounting end, which is sleeved on the mounting column; a rotating end, which rotates under the action of wind pressure to change the degree of shielding of the cavity; and a rotating shaft portion, whose two ends are respectively connected to the mounting end and the rotating end, and the mounting end and the rotating end can rotate around the rotating shaft portion.

[0007] Optionally, the thickness of the rotating shaft portion is smaller than the thickness of the mounting end and the rotating end.

[0008] Optionally, the rotating end and the airflow direction are arranged at an angle of 75°.

[0009] Optionally, the shell further includes a connecting rib, which is at least partially disposed in the cavity, one end of which is fixed to an inner wall of the shell, and the other end of which is fixed to the mounting column.

[0010] Optionally, the mounting column is provided with a mounting protrusion, and the dust shield is assembled to the mounting column through the side of the mounting column provided with the mounting protrusion, and in the airflow direction, one side of the dust shield is provided with the connecting rib and the other side is provided with the mounting protrusion.

[0011] Optionally, a chamfer is provided on a side of the mounting protrusion facing away from the connecting rib.

[0012] Optionally, there are multiple mounting protrusions, and the multiple mounting protrusions are arranged on the mounting column in a circular array around the airflow direction.

[0013] Optionally, the outer shell is close to the dust suction port, and the outer shell gradually decreases in a direction close to the dust suction port.

[0014] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide a dust removal device, including the above dust blocking structure for the dust removal device.

[0015] The beneficial effects of the embodiment of the utility model are: different from the prior art, the dust shield sheet of the embodiment of the utility model is fixed to the installation column by sleeve installation, the installation steps are simple and the installation is more secure and not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional schematic diagram of a dust shielding structure for dust removal equipment according to an embodiment of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the section along AA;

[0019] Figure 3 yes Figure 2 A magnified view of part B in FIG.

[0020] Figure 4 yes Figure 1 Schematic diagram of the section along CC;

[0021] Figure 5 It is a three-dimensional schematic diagram of a dust shield sheet according to an embodiment of the utility model;

[0022] Figure 6 It is a three-dimensional schematic diagram of the dust removal device of an embodiment of the utility model;

[0023] Figure 7 yes Figure 6 Schematic diagram of the section along DD.

[0024] 1. Dust-blocking structure for dust removal equipment; 100. Housing; 110. Cavity; 111. Dust suction port; 120. Mounting column; 121. Mounting protrusion; 130. Connecting rib; 200. Dust-blocking sheet; 210. Mounting end; 220. Rotating end; 230. Rotating shaft; 2. Dust removal equipment; 21. Cleaning accessories; 22. First driving source; 23. Filter module; 24. Second driving source. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0027] See also Figures 1 to 3 The embodiment of the present application provides a dust shielding structure 11 (hereinafter directly described as dust shielding structure 1) for dust removal equipment, including a housing 100 and a dust shielding sheet 200. The housing 100 is provided with a cavity 110 and a mounting column 120. The cavity 110 has a dust suction port 111 communicating with the outside. The mounting column 120 is at least partially disposed in the cavity 110 and fixed to the housing 100. The dust shielding sheet 200 is at least partially accommodated in the cavity 110. The dust shielding sheet 200 is sleeved and mounted on the mounting column 120. The dust shielding sheet 200 is used to close or open the cavity 110 under the action of pressure.

[0028] For the housing 100 described above, see Figure 1 and Figure 2 The outer shell 100 is a slender cylindrical shell structure with a diameter of about 2.5 cm and a length of about 15 cm. The overall thickness of the shell wall of the outer shell 100 is consistent. A cylindrical cavity 110 is provided in the outer shell 100. The cavity 110 has a dust suction port 111 connected to the outside. The dust suction port 111 is provided at the end of the outer shell 100. The cross-sectional shape of the dust suction port 111 is circular, and the axes of the dust suction port 111 and the cavity 110 are in the same straight line.

[0029] It should be noted that, in the embodiment of the present application, the shell 100 is in the shape of an elongated cylinder for the convenience of user holding, and its size and shape are slightly similar to the pen usually used, which is helpful for users to clean small precision equipment and instruments. However, the present application does not limit the specific shape of the shell 100. For example, in other embodiments of the present application, the shell 100 may be a shell structure with an elliptical cross-section, or a relatively short and thick cylindrical shape with a larger diameter, and without considering the grip feel, the shell 100 may also be a shell structure with a polygonal cross-section.

[0030] It should also be noted that the present application does not limit the specific shapes of the cavity 110 and the dust suction port 111. In the embodiments of the present application, the cross-sections of the cavity 110 and the dust suction port 111 are circular in order to ensure uniform suction and keep the outer dimensions consistent without using different angles. In addition, the wall thickness of the outer shell 100 can be kept consistent, thereby ensuring the overall strength of the outer shell 100. However, the present application does not limit the specific shapes of the cavity 110 and the dust suction port 111. For example, in some embodiments of the present application, the cross-sectional shape of the cavity 110 can be elliptical or polygonal, the cross-sectional shape of the dust suction port 111 can be waist-shaped or rectangular or other polygonal, and the position of the dust suction port 111 can be set away from the axis of the cavity 110.

[0031] It should be noted that in the embodiment of the present application, the axis of the shell 100 is the central axis direction of the cylindrical shell 100, and the airflow direction is the direction parallel to the axis. In other embodiments of the present application, when the shell 100 is not cylindrical, the axis of the shell 100 is the extension direction of the main structure, and the airflow direction is the direction parallel to the axis.

[0032] Furthermore, the shell 100 also includes a mounting column 120, the outer contour of the mounting column 120 is cylindrical, and the shell 100 also includes a connecting rib 130, which is arranged in the cavity 110, and the connecting rib 130 is a rib plate structure. The number of the connecting ribs 130 is 3, and the 3 connecting ribs 130 are arranged in a circular array around the axis of the shell 100. The connecting ribs 130 respectively connect the mounting column 120 and the inner wall of the shell 100, one end of the connecting rib 130 is fixed to the inner wall of the shell 100, and the other end is fixed to the mounting column 120. The setting of the connecting rib 130 can not only realize the fixation of the mounting column 120 on the shell 100, but also realize the avoidance of the airway.

[0033] It should be noted that, in the embodiment of the present application, the number of connecting ribs 130 is 3 in order to strengthen the installation strength of the mounting column 120 on the housing 100, but the present application does not limit the specific number of connecting ribs 130. In other embodiments of the present application, the connecting ribs 130 may be 2, 5, 7 or more, and multiple connecting ribs 130 may be arranged in a circular array around the axis of the housing 100, or the number of connecting ribs 130 may be set to only one while ensuring the installation strength of the mounting column 120.

[0034] It should also be noted that in the embodiments of the present application, in order to improve user experience and enhance the aesthetic appearance of the product, the mounting columns 120 and the connecting ribs 130 are all arranged inside the cavity 110, but the present application is not limited to this. In some embodiments of the present application, the mounting columns 120 and the connecting ribs 130 can be partially arranged in the cavity 110 to achieve the sleeve installation of the dust shield 200.

[0035] For the above-mentioned dust shield 200, please refer to Figure 3 and Figure 5 The dust shield 200 is arranged in the cavity 110. The dust shield 200 is annular as a whole and is made of sponge. The dust shield 200 is used to rotate under the action of wind pressure, thereby changing the degree of shielding of the cavity 110. Specifically, the dust shield 200 includes a mounting end 210, a rotating end 220 and a rotating shaft portion 230. The mounting end 210 is sleeved on the mounting column 120, and the rotating end 220 rotates under the action of wind pressure, thereby changing the degree of shielding of the cavity 110. The two ends of the rotating shaft portion 230 are respectively connected to the mounting end 210 and the rotating end 220, and the mounting end 210 and the rotating end 220 can rotate around the rotating shaft portion 230.

[0036] The dust shield 200 can not only suck the garbage from the dust suction port 111 into the cavity 110 , but also prevent the garbage stored in the cavity 110 from spilling out from the dust suction port 111 during dumping or use.

[0037] It should be noted that the present application does not limit the specific material of the dust shield 200. In other embodiments of the present application, the material of the dust shield 200 may also be a softer material that is easily deformed, such as polyvinyl chloride or thermoplastic polyurethane elastomer.

[0038] It should also be noted that, in the embodiment of the present application, in order to enhance the shielding effect of the dust shield 200 on the cavity 110 and reduce the wear of the dust shield 200 by the external environment, the dust shield 200 is arranged inside the cavity 110, but the present application is not limited to this. In some embodiments of the present application, the dust shield 200 can also be partially arranged in the cavity 110 to achieve shielding of the cavity 110.

[0039] The specific structures of the mounting end 210 , the rotating end 220 , and the rotating shaft 230 are described below step by step.

[0040] For the above-mentioned mounting end 210, the mounting end 210 is a circular cylindrical structure, and the mounting end 210 is sleeved on the mounting column 120, so as to realize the installation of the dust shield 200 on the housing 100. It should be noted that in the embodiment of the present application, the mounting end 210 is set in the form of a circular cylindrical structure and the outer contour of the mounting column 120 is cylindrical, which is an adaptive installation between the two, and corresponds to the shape of the cavity 110, so that the mounting end 210 is more evenly stressed and is not easily damaged due to internal stress, but the present application does not limit the specific shape of the mounting end 210 and the mounting column 120. For example, in some embodiments of the present application, the cross-section of the outer contour of the mounting column 120 can be elliptical, triangular, rectangular or other polygonal, and the inner contour of the mounting end 210 is preferably adapted to the outer contour of the mounting column 120, but under the condition of ensuring the installation strength of the dust shield 200, the inner contour of the mounting end 210 may not be adapted to the outer contour of the mounting column 120, and the inner contour and outer contour of the mounting end 210 may be inconsistent.

[0041] For the above-mentioned rotating end 220, the rotating end 220 is a circular thin sheet structure, the rotating end 220 and the airflow direction are 75°, and the side of the rotating end 220 away from the dust suction port 111 is inclined inward toward the axis of the shell 100 in the airflow direction. Because in the embodiment of the present application, the shell is a slender structure, the cross-section of the cavity 110 is small, and the rotating end 220 and the airflow are set at an acute angle, which can increase the radial length of the rotating end 220, thereby amplifying the shielding effect during rotation, and the rotating end 220 has a larger area, which is more conducive to receiving wind force, thereby making the rotating end 220 easier to rotate.

[0042] It should be noted that in the embodiment of the present application, the rotating end 220 and the airflow direction are at 75°, which is a preferred solution, but the present application is not limited to this. In other embodiments of the present application, the rotating end 220 can also be at different angles such as 45°, 30° or 90°.

[0043] It should also be noted that, in the embodiment of the present application, in order to adapt to the contour of the cavity 110, the outer contour of the rotating end 220 is set to be circular to increase the shielding effect on the cavity 110, and the rotating end 220 is set in the form of a thin sheet to facilitate deformation, but the present application does not limit the specific shape of the rotating end 220. In other embodiments of the present application, the outer contour of the rotating end 220 can be a polygonal shape such as an ellipse, triangle, rectangle, etc. that is adapted to the cross-sectional shape of the cavity 110, or it can be a shape that is not suitable for the cavity 110, so as to at least partially shield the cavity 110, and the rotating end 220 can also be designed as a structure with a certain thickness, so as to increase the strength inside the dust shield 200.

[0044] For the above-mentioned shaft portion 230, the shaft portion 230 is annular as a whole, and the thickness of the shaft portion 230 is smaller than the thickness of the mounting end 210 and the rotating end 220, thereby forming a flexible hinge structure between the mounting end 210 and the rotating end 220, which is beneficial to the rotation of the rotating end 220 and prevents the rotating end 220 from rotating too small when the wind force is small, thereby affecting the suction of garbage and causing the loss of wind force.

[0045] It should be noted that in the embodiment of the present application, the shaft portion 230 is arranged in a ring shape in order to adapt to the shapes of the mounting end 210 and the rotating end 220, so as to maintain consistency in shape and wall thickness, so that the dust shield 200 is more evenly stressed and less likely to be damaged by stress due to unbalanced force. However, the present application does not limit the specific shape of the shaft portion 230. In other embodiments of the present application, the shaft portion 230 may have other shapes.

[0046] Preferably, see Figure 4 A mounting protrusion 121 is provided at one end of the mounting column 120 which is away from the dust suction port 111 in the airflow direction. When installed, the dust shield 200 uses its own elasticity to short-term expand the outline from the mounting protrusion 121 to the mounting column 120, and the inner diameter of the mounting end 210 is the same as the outer diameter of the mounting column 120. The mounting end 210 is adapted to be installed on the mounting column 120. In the airflow direction, one side of the dust shield 200 abuts against the connecting rib 130, and the other side abuts against the mounting protrusion 121, thereby achieving fixed installation of the dust shield 200 and preventing it from swinging or shifting due to wind pressure.

[0047] The embodiment of the present application achieves fixed installation on the dust removal equipment through a sleeve arrangement. Compared with the traditional installation method of bonding or clamping, the structural design is simpler, the number of parts and the assembly steps are relatively small, and compared with bonding or clamping, which are easy to fall off or loosen under the action of wind pressure, the installation method of the embodiment of the present application is more secure, thereby extending the service life of the dust shield 200 and providing a stronger user experience.

[0048] Furthermore, the number of the mounting protrusions 121 is 3, and the 3 mounting protrusions 121 are distributed in a circular array in a direction perpendicular to the airflow. The mounting protrusions 121 are arranged in such an interval manner to further facilitate the installation of the dust shield 200. When the mounting end 210 is not easy to insert into the mounting protrusion 121 whose size is larger than its own inner hole diameter, the mounting end 210 can be installed by inserting the mounting protrusions 121 one by one, thereby reducing the degree of deformation of the mounting end 210 during installation, thereby reducing the difficulty of installing the mounting end 210, and can further ensure the installation strength of the dust shield 200 on the outer shell 100.

[0049] It should be noted that, in the embodiment of the present application, the number of mounting protrusions 121 is set to 3 based on comprehensive consideration of the installation strength and installation difficulty of the dust shield 200, but the present application does not limit the specific number of mounting protrusions 121. In other embodiments of the present application, the number of mounting protrusions 121 can also be 2, 4 or 6, etc., and in some embodiments of the present application, the mounting protrusions 121 can also be set into a complete ring shape to ensure the installation strength of the dust shield 200.

[0050] Preferably, the mounting protrusion 121 has a chamfer on the side facing away from the dust suction port 111 in the airflow direction. The chamfer can facilitate the installation of the dust shield 200 during the production process. During installation, the dust shield 200 can use the chamfered profile to gradually increase the inner hole profile of the mounting end 210, thereby sliding out the mounting protrusion 121 to achieve installation. It should be noted that in some embodiments of the present application, the mounting protrusion 121 can also be rounded on the side facing away from the dust suction port 111 in the airflow direction to facilitate the installation of the dust shield 200.

[0051] Preferably, at a position of the shell 100 near the dust suction port 111, the contour of the shell 100 gradually decreases in the direction close to the dust suction port 111. Specifically, the contour of the shell 100 on one side close to the dust suction port 111 gradually decreases, and the overall thickness of the shell 100 remains uniform, that is, the contour of the cavity 110 on one side close to the dust suction port 111 gradually decreases, so that the shell 100 has a smaller dust suction range close to the dust suction port 111, which is convenient for user operation. On the other hand, the rotating end 220 and the airflow direction are inclined. Because the contour of the cavity 110 close to the dust suction port 111 is reduced, when the dust removal equipment is inverted or tilted, the garbage will reversely push the dust shield 200 against the inner wall of the shell 100, thereby forming a self-locking function, further preventing garbage from leaking out of the dust suction port 111, which can improve the user experience. On the other hand, the size of the dust suction port 111 can also be reduced, which is convenient for users to clean precision and small instrument parts.

[0052] Preferably, on the side close to the dust suction port 111 in the airflow direction, from the connection point between the connecting rib 130 and the shell 100 to the connection point between the connecting rib 130 and the mounting column 120, the thickness of the connecting rib 130 gradually decreases, and its contour is a smooth transition, that is, the connecting rib 130 is recessed at the dust suction port 111, which can reduce the volume of the connecting rib 130 while ensuring the installation strength of the mounting column 120 and the shell 100, and the smooth transition of the side of the connecting rib 130 close to the dust suction port 111 can reduce the resistance when the garbage is sucked into the cavity 110, that is, increase the suction strength.

[0053] In the embodiment of the present application, the dust shield 200 is installed on the housing 100 by sleeve installation, and the installation method is simple and the installation is more secure. Compared with the traditional methods of clamping or bonding, the dust shield 200 of the embodiment of the present application is less likely to fall off, which is beneficial to improve the service life of the dust shield structure 1. On the other hand, the dust shield 200 is installed on the mounting column 120 of the housing 100 by sleeve installation, without the need for additional assembly parts, and the assembly steps are simple. The installation end 210 is inserted into the mounting column 120 from the mounting protrusion 121 to complete the installation, and the assembly state is also identified, thereby reducing the installation steps and further reducing the production cost.

[0054] The utility model also provides a dust removal device 2, see Figure 6 and Figure 7 The dust removal device 2 includes the above-mentioned dust blocking structure 1 and cleaning accessories 21, a first driving source 22, a filtering module 23 and a second driving source 24. The cleaning accessories 21 are arranged in the cavity 110 and partially extend out of the dust suction port 111, and the cleaning accessories 21 clean the surface to be cleaned by movement. The first driving source 22 is arranged in the cavity 110, and the first driving source 22 is used to drive the cleaning accessories 21 to move. The filtering module 23 is arranged in the cavity 110, and the filtering module 23 is used to filter solid waste from the airflow. The second driving source 24 is arranged in the cavity 110, and the second driving source 24 is used to provide wind pressure so that external garbage can enter the cavity 110 through the dust suction port 111.

[0055] Since the dust removal device 2 of the embodiment of the present application includes the above-mentioned dust shielding structure 1, the dust removal device 2 of the embodiment of the present application has the beneficial effects of the above-mentioned dust shielding structure 1, which will not be described one by one here. In addition, the embodiment of the present utility model is provided with a cleaning accessory 21, which is arranged through the mounting column 120, and the dust shielding sheet 200 is arranged in a ring manner to better fit the structure of the cavity 110, and the shielding effect is better.

[0056] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A dust shielding structure for dust removal equipment, characterized in that: include: The housing is provided with a cavity and a mounting column, wherein the cavity has a dust suction port connected to the outside, the mounting column is provided with a mounting protrusion, and the mounting column is at least partially disposed in the cavity and fixed to the housing; as well as A dust shield is at least partially accommodated in the cavity, the dust shield is mounted on the mounting column through a side of the mounting column provided with the mounting protrusion, and the dust shield is used to close or open the cavity under the action of pressure.

2. The dust shielding structure for dust removal equipment according to claim 1, characterized in that: The dust shield comprises: A mounting end, sleeved on the mounting column; A rotating end rotates under the action of wind pressure, thereby changing the degree of shielding of the cavity; and The rotating shaft portion has two ends respectively connected to the mounting end and the rotating end, and the mounting end and the rotating end can rotate around the rotating shaft portion.

3. The dust shielding structure for dust removal equipment according to claim 2, characterized in that: The thickness of the rotating shaft portion is smaller than the thickness of the mounting end and the rotating end.

4. The dust shielding structure for dust removal equipment according to claim 2, characterized in that: The rotating end is arranged at an angle of 75° to the air flow direction.

5. The dust shielding structure for dust removal equipment according to claim 1, characterized in that: The shell further comprises a connecting rib, which is at least partially disposed in the cavity, one end of which is fixed to the inner wall of the shell, and the other end of which is fixed to the mounting column.

6. The dust shielding structure for dust removal equipment according to any one of claims 1 to 5, characterized in that: In the airflow direction, a connecting rib is provided on one side of the dust shield, and the mounting protrusion is provided on the other side.

7. The dust shielding structure for dust removal equipment according to claim 6, characterized in that: A chamfer is provided on a side of the mounting protrusion facing away from the connecting rib.

8. The dust shielding structure for dust removal equipment according to claim 6, characterized in that: There are multiple mounting protrusions, and the multiple mounting protrusions are arranged on the mounting column in a circular array around the airflow direction.

9. The dust shielding structure for dust removal equipment according to claim 6, characterized in that: The outer shell is located close to the dust suction port, and the outer shell gradually decreases in profile toward the dust suction port.

10. A dust removal device, characterized in that: It comprises a dust blocking structure for dust removal equipment as described in any one of claims 1 to 9.

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