A mite removal vacuum cleaner

Abstract

The present invention relates to a mite removal vacuum cleaner, which belongs to the technical field of cleaning equipment and solves the problems of inconvenient steering operation and low operating efficiency of existing mite removal vacuum cleaners. The mite removal vacuum cleaner comprises: a front end and a rear end; the bottom surface of the front end is provided with two traveling wheels symmetrical about the central axis of the mite removal vacuum cleaner, the axles of the traveling wheels are fixedly connected to the front end, and the axles of the traveling wheels are perpendicular to the central axis of the mite removal vacuum cleaner; the bottom surface of the rear end is provided with a spherical wheel located on the central axis of the mite removal vacuum cleaner, and the spherical wheel is an axleless wheel; the length of the mite removal vacuum cleaner is not less than 420 mm. The present invention is provided with a spherical wheel, which has both steering and supporting functions, which facilitates the user to steer the mite removal vacuum cleaner during use, thereby enhancing the user experience; the spherical wheel is simpler in structure than the universal wheel, and can also prevent fabrics such as bed sheets from being caught in the spherical wheel.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to a mite-removing vacuum cleaner. Background Art

[0002] Existing dust mite removal vacuum cleaners are only 330mm long, which limits their radius of use and increases cleaning time. Furthermore, existing dust mite removal vacuum cleaners generally lack rotating wheels, requiring wrist rotation to achieve overall steering, which reduces the user experience. Summary of the Invention

[0003] In view of the above analysis, the present invention aims to provide a mite removal vacuum cleaner to solve the problems of inconvenient turning operation and low operating efficiency of existing mite removal vacuum cleaners.

[0004] The purpose of the present invention is mainly achieved through the following technical solutions:

[0005] In the technical solution of the present invention, a mite removal vacuum cleaner is provided, the mite removal vacuum cleaner comprising: a front end portion and a rear end portion;

[0006] The bottom surface of the front end is provided with two traveling wheels symmetrically about the central axis of the mite removal vacuum cleaner, the axles of the traveling wheels are fixedly connected to the front end, and the axles of the traveling wheels are perpendicular to the central axis of the mite removal vacuum cleaner;

[0007] The bottom surface of the rear end is provided with a spherical wheel located on the central axis of the mite removal vacuum cleaner, and the spherical wheel is an axleless wheel;

[0008] The length of the mite removal vacuum cleaner shall not be less than 420 mm.

[0009] In the technical solution of the present invention, the spherical wheel comprises: a ball table shell, a wheel ball and a stopper;

[0010] The bottom surface of the rear end portion is provided with a spherical wheel mounting groove, and the ball table shell is provided at the opening of the spherical wheel mounting groove, and the ball table shell is a shell structure corresponding to the side surface of the hemispherical ball table;

[0011] The stopper is arranged in the spherical wheel mounting groove; the top of the stopper is fixedly connected to the rear end portion, and the bottom is a spherical crown surface;

[0012] The wheel ball is arranged in the space between the table shell and the bottom of the stopper, and the spherical surface radius and the spherical crown radius corresponding to the inner wall surface of the table shell are not less than the radius of the wheel ball.

[0013] In the technical solution of the present invention, the inner wall surface of the table shell and the spherical crown surface of the stopper are cospherical, and the radius of the spherical surface is equal to the radius of the wheel ball.

[0014] In the technical solution of the present invention, the stopper portion comprises: a columnar portion, a transverse portion and an assembly portion;

[0015] The columnar portion is inserted into the spherical wheel mounting groove and is fixedly connected to the rear end portion through the assembly portion;

[0016] The transverse portion is arranged at the bottom of the columnar portion, and the spherical crown surface is arranged at the center of the bottom surface of the transverse portion.

[0017] In the technical solution of the present invention, the table shell and the rear end portion are an integrated structure.

[0018] In the technical solution of the present invention, the front end portion includes: a front shell, a filter dust collection portion, a roller brush assembly and a UV assembly;

[0019] The bottom of the front shell is provided with a roller brush opening and a UV opening, the roller brush assembly is arranged at the roller brush opening, and the UV assembly is arranged at the UV opening; the roller brush opening is provided with a dust suction port, and the dust suction port is connected with the interior of the filter dust collection part through an air flow passage;

[0020] The dust filtering and collecting part is detachably arranged inside the front shell body.

[0021] In the technical solution of the present invention, the roller brush shaft of the roller brush assembly is perpendicular to the central axis of the mite removal vacuum cleaner, and the UV lamp tube of the UV assembly is perpendicular to the central axis of the mite removal vacuum cleaner; the roller brush assembly is arranged in front of the UV assembly.

[0022] In the technical solution of the present invention, the filtering dust collecting part includes a dust collecting chamber and a filter assembly; the dust collecting chamber at least partially surrounds the filter assembly.

[0023] In the technical solution of the present invention, the rear end portion further comprises: a rear housing, a motor assembly, a power supply assembly and a grip portion;

[0024] The motor assembly is arranged in front of the power supply assembly, and the rear housing is provided with an air outlet for the motor assembly;

[0025] The gripping portion is arranged at the rear portion of the rear shell body and is located above the spherical wheel.

[0026] In the technical solution of the present invention, at least a portion of the holding portion is a fan ring, and reinforcing ribs are provided inside the holding portion.

[0027] The technical solution of the present invention can achieve at least one of the following effects:

[0028] 1. This invention increases the overall length of the vacuum cleaner, which increases the operating radius compared to existing mite removal vacuum cleaners. For the same user, it can cover a larger area, avoiding the user from frequently adjusting their position, saving cleaning time and improving efficiency.

[0029] 2. The present invention is equipped with a spherical wheel, which has both steering and supporting functions, making it easier for users to steer the mite removal vacuum cleaner during use, thereby enhancing the user experience;

[0030] 3. The present invention adopts a spherical wheel structural design, which makes the spherical wheel simpler than the universal wheel structure and can also prevent fabrics such as bed sheets from being caught in the spherical wheel.

[0031] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following description, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0033] Figure 1 Schematic diagram of the dimensions of an embodiment of the present invention;

[0034] Figure 2 Schematic diagram of the overall structure of an embodiment of the present invention;

[0035] Figure 3 Schematic diagram of the internal structure of an embodiment of the present invention;

[0036] Figure 4 A schematic diagram of a wheel ball disassembled according to an embodiment of the present invention;

[0037] Figure 5 A schematic diagram of the wheel ball installation state according to an embodiment of the present invention;

[0038] Figure 6 A schematic diagram of the roller brush structure according to an embodiment of the present invention;

[0039] Figure 7 AA cross-sectional view of a roller brush according to an embodiment of the present invention;

[0040] Figure 8 Schematic cross-sectional view of the roller brush BB according to an embodiment of the present invention.

[0041] Reference numerals:

[0042] 1-Front end; 2-Rear end; 3-Traveling wheel; 4-Spherical wheel; 5-Ball table shell; 6-Wheel ball; 7-Stop part; 8-Columnar part; 9-Horizontal part; 10-Assembly part; 11-Front shell; 12-Roller brush assembly; 13-UV assembly; 14-Dust collection chamber; 15-Filter assembly; 16-Rear shell; 17-Motor assembly; 18-Power supply assembly; 19-Handling part. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0044] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the term "connected" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] The terms "top," "bottom," "above," "below," and "on" used throughout the description refer to relative positions of components of a device, such as the relative positions of top and bottom substrates within a device. It will be understood that devices are multifunctional regardless of their orientation in space.

[0046] For the convenience of explanation, in the embodiment of the present invention, the mite removal vacuum cleaner is placed on a horizontal plane: the front of the mite removal vacuum cleaner refers to the forward direction of the mite removal vacuum cleaner, and correspondingly, the rear of the mite removal vacuum cleaner is the backward direction of the mite removal vacuum cleaner; the top of the mite removal vacuum cleaner is the top at this moment, and correspondingly, the bottom of the mite removal vacuum cleaner is the bottom at this moment. The central axis plane of the mite removal vacuum cleaner is a vertical plane along the front-to-back direction of the mite removal vacuum cleaner, and the mite removal vacuum cleaner is symmetrical about the central axis plane. The mite removal vacuum cleaner is usually used for cleaning and removing mites from flexible fabrics such as sheets, quilts, and carpets, that is, the working surface is usually a flexible surface, and it is easy to be drawn into the mite removal vacuum cleaner when the mite removal vacuum cleaner is vacuuming and moving.

[0047] like Figures 1 to 5As shown, an embodiment of the present invention provides a mite removal vacuum cleaner, which includes a front end portion 1 and a rear end portion 2. The bottom surface of the front end portion 1 is provided with two traveling wheels 3 that are symmetrical about the central axis of the mite removal vacuum cleaner. The axles of the traveling wheels 3 are fixedly connected to the front end portion 1, and the axles of the traveling wheels 3 are perpendicular to the central axis of the mite removal vacuum cleaner. The traveling wheels 3 are used to guide the mite removal vacuum cleaner to move forward or backward in a straight line on the working surface without being controlled by other external factors. The bottom surface of the rear end portion 2 is provided with a spherical wheel 4 located on the central axis of the mite removal vacuum cleaner. The spherical wheel 4 is an axleless wheel, and the three wheels form a triangular structure, which makes the mite removal vacuum cleaner more stable when moving on the working surface, and can move smoothly even if the working surface is not flat.

[0048] When the mite removal vacuum cleaner needs to be turned, the operator can directly twist the mite removal vacuum cleaner. The spherical wheel 4 enables the operator to rotate the direction of the mite removal vacuum cleaner at any angle without lifting a part of the mite removal vacuum cleaner and then turning it, which improves the convenience and comfort of operation of the embodiment of the present invention. Existing vacuum cleaners often have rollers with axles. When the mite removal vacuum cleaner needs to be turned, the front or rear part of the mite removal vacuum cleaner needs to be lifted to achieve the turning of the mite removal vacuum cleaner, which is cumbersome and laborious, affecting the operator's experience.

[0049] In addition, the length of the mite removal vacuum cleaner of the embodiment of the present invention is not less than 420 mm. Compared with the length of 330 mm of the existing mite removal vacuum cleaner, the length of the embodiment of the present invention is increased by nearly 1 / 3, which increases the use radius of the embodiment of the present invention. For the same user, the mite removal vacuum cleaner of the embodiment of the present invention can cover a larger area, avoiding the user from frequently adjusting their position, saving cleaning time, and improving use efficiency.

[0050] The present invention redesigns the structure of the spherical wheel 4. Specifically, the spherical wheel 4 includes: a ball table shell 5, a wheel ball 6, and a stopper 7. The bottom surface of the rear end portion 2 is provided with a spherical wheel 4 mounting groove for mounting the spherical wheel 4. The ball table shell 5 is arranged at the opening of the spherical wheel 4 mounting groove. The ball table shell 5 is a shell structure corresponding to the side of the hemispherical ball table. The shell structure of the hemispherical ball table can confine the wheel ball 6 in the spherical wheel 4 mounting groove to prevent the wheel ball 6 from falling off. The outer side of the ball table shell 5 is also part of the spherical surface, which can prevent the ball table shell 5 from getting stuck or entangled with the fabric on the working surface, ensuring that the mite removal vacuum cleaner can move smoothly on the working surface. The stopper 7 is arranged in the spherical wheel 4 mounting groove, which can enable at least a portion of the ball wheel to protrude from the ball table shell 5, ensuring the steering and support functions of the ball wheel. The top of the stopper 7 is fixedly connected to the rear end portion 2, and the bottom is a spherical crown surface, which ensures the smooth rolling of the ball wheel and prevents the ball wheel from being stuck by the stopper 7. The wheel ball 6 is arranged in the space between the table shell 5 and the bottom of the stop part 7, and rolls in the space. The spherical radius and the radius of the spherical crown surface corresponding to the inner wall surface of the table shell 5 are not less than the radius of the wheel ball 6, so that the contact between the stop part 7 and the table shell 5 and the ball wheel is smoother, ensuring that the ball wheel can roll smoothly between the stop part 7 and the table shell 5.

[0051] In order to prevent the flexible fabric on the working surface from being caught in the gap between the wheel ball 6 and the table shell 5, in the embodiment of the present invention, the inner wall surface of the table shell 5 and the spherical crown surface of the stop portion 7 are cospherical, and the radius of the spherical surface is equal to the radius of the wheel ball 6, that is, the gap between the wheel ball 6 and the table shell 5 is minimized, and it is ensured that there is no interference fit between the wheel ball 6 and the table shell 5.

[0052] In this embodiment of the present invention, a shielding portion is provided on the bottom surface of the table shell 5. The shielding portion is truncated cone-shaped, with its outer surface tangent to the wheel ball 6 and its inner surface coplanar with the inner wall of the table shell 5. The shielding portion ensures that the table shell 5 is not affected by the flexible fabric on the working surface during movement, without affecting the rolling motion of the wheel ball 6. Furthermore, it further prevents the flexible fabric on the working surface from being drawn into the gap between the wheel ball 6 and the table shell 5.

[0053] The embodiment of the present invention further redesigns the stopper 7, which includes a columnar portion 8, a transverse portion 9, and an assembly portion 10. The columnar portion 8, as the main body of the stopper 7, is inserted into the mounting groove of the spherical wheel 4 and is fixedly connected to the rear end portion 2 through the assembly portion 10. The transverse portion 9 is arranged at the bottom of the columnar portion 8, and the spherical crown surface is arranged at the center of the bottom surface of the transverse portion 9. The transverse portion 9 presses the wheel ball 6 in the space between the table shell 5 and the stopper 7 to limit the wheel ball 6. Since there is no interference compression, the wheel ball 6 can roll freely in the space, and since the stopper 7 is relatively fixed to the rear end portion 2, the wheel ball 6 can play a supporting role. The table shell 5 and the rear end portion 2 are an integrated structure, which can reduce the gap between the spherical wheel 4 and the rear end portion 2, prevent the flexible fabric of the working surface from being entangled, and make the overall appearance more beautiful.

[0054] During the use of the embodiments of the present invention, it is difficult to ensure that the working surface is completely flat because most of it is flexible fabric. In the embodiments of the present invention, the columnar portion 8 is provided with a retractable unit, and the retractable unit includes an elastic member, a sleeve and an extending tube. The sleeve is arranged outside the extending tube, and the top of the sleeve is fixedly connected to the rear end portion 2 through the assembly portion 10. The transverse portion 9 is arranged at the bottom end of the extending tube, and the elastic member is arranged between the sleeve and the extending tube, and is in a compressed state, so that the transverse portion 9 can press the wheel ball 6 inside the table shell 5, and when the wheel ball 6 receives excessive external force, the elastic member further contracts, playing a certain buffering role.

[0055] The wheel ball 6 is made of a self-lubricating material to prevent the wheel ball 6 from being damaged by friction with the table shell 5 and the transverse portion 9 during long-term use. For example, the self-lubricating material is a single substance or alloy containing a metal element with a single substance mode hardness of no more than 2.5, alumina ceramics, or an organic high molecular polymer.

[0056] In an embodiment of the present invention, the front end portion 1 includes: a front shell 11, a filter dust collecting portion, a roller brush assembly 12, and a UV assembly 13. The bottom of the front shell 11 is provided with a roller brush opening and a UV opening. The roller brush assembly 12 is arranged at the roller brush opening, and the UV assembly 13 is arranged at the UV opening. The roller brush assembly 12 is used to assist in dust collection, sweeping the dust on the work surface into the vacuum cleaner, and the UV assembly 13 is used to generate ultraviolet light to kill mites. A dust suction port is provided at the roller brush opening, and the dust suction port is connected to the interior of the filter dust collecting portion through an air flow passage. The air flow carrying dust passes through the filter dust collecting portion to complete the dust filtration, and the filtered dust accumulates in the filter dust collecting portion. The filter dust collecting portion is detachably arranged inside the front shell 11, so that the operator can clean the dust in the filter dust collecting portion.

[0057] The roller brush assembly 12 has a roller brush shaft perpendicular to the central axis of the mite removal vacuum cleaner, and the UV lamp of the UV assembly 13 is perpendicular to the central axis of the mite removal vacuum cleaner. That is, both the roller brush shaft and the UV lamp are perpendicular to the forward and backward directions of the mite removal vacuum cleaner. This can increase the effective coverage area of ​​the mite removal vacuum cleaner during a single forward movement and improve dust removal and mite removal efficiency. The roller brush assembly 12 is arranged in front of the UV assembly 13 and first vacuums the work surface to remove dust from the work surface. The UV lamp then irradiates the work surface with ultraviolet light to remove mites, preventing dust from blocking the ultraviolet light and improving the mite removal effect.

[0058] like Figures 6 to 8 As shown, the roller brush includes a shaft body, a rib assembly and a flat plate assembly arranged along the axial direction of the shaft body, and the rib assembly and the flat plate assembly are arranged on the shaft body and protrude from the outer wall surface of the shaft body.

[0059] Compared with the prior art, the outer wall surface of the roller brush for the cleaning device provided in this embodiment is provided with a rib assembly and a flat plate assembly. The rib assembly and the flat plate assembly are equivalent to increasing the diameter of the shaft, making it difficult for shorter hair to be entangled on the shaft; at the same time, even if longer hair is entangled on the rib assembly or the flat plate assembly, since there is a certain gap between the hair wrapped around the rib assembly or the flat plate assembly and the shaft, the entangled hair can be easily removed through the gap, and basically no jamming will occur in actual application.

[0060] In addition, since the above-mentioned roller brush is provided with at least one group of rib components and at least one group of flat plate components, and the rib components and the flat plate components protrude in multiple directions from the outer wall surface of the shaft body, the sofa and bedding can be beaten from multiple directions. Compared with the existing electric roller brush, the dust inside the sofa and bedding can be cleaned, thereby achieving a better dust removal effect.

[0061] Specifically, the rib assembly structure can include multiple ribs arranged along the shaft's axial direction, each rib extending radially. Similarly, the plate assembly includes multiple plates arranged along the shaft's axial direction, each extending radially. This is because the orientation of the ribs and plates aligns with the shaft's radial direction, allowing the shaft's diameter to be maximized while maintaining the same length, further reducing hair entangled around the shaft. Furthermore, from a machining perspective, machining the ribs and plates with the shaft's radial direction as a reference facilitates uniform machining angles for the ribs and plates, facilitating machining.

[0062] From the perspective of practical application, the plurality of ribs are arranged at equal intervals, and similarly, the plurality of flat plates are also arranged at equal intervals.

[0063] To ensure that the rib and flat plate assemblies can substantially cover every axial cross-section of the shaft, the ribs in two adjacent sets of rib assemblies are staggered, and the flat plates in two adjacent sets of flat plate assemblies are staggered. This increases the area covered by the rib and flat plate assemblies, ensuring that virtually every axial cross-section of the shaft is equipped with at least one rib or flat plate, further reducing the risk of hair entanglement.

[0064] To maximize the number of ribs and flat plates while maintaining the same shaft diameter, the bottom ends of the ribs are positioned between two adjacent flat plates, and the bottom ends of the flat plates are positioned between two adjacent ribs. In other words, the ribs and flat plates are also staggered, allowing for more ribs and flat plates to be placed on the same axial plane on the shaft's outer wall, further reducing the risk of hair entanglement.

[0065] Considering that a flat plate needs to be placed in the gap between two adjacent ribs, and a rib needs to be placed in the gap between two adjacent flat plates, the width of the rib needs to be smaller than the gap between two adjacent ribs, and the width of the flat plate needs to be smaller than the gap between two adjacent flat plates along the axial direction of the shaft. This makes it convenient to place a flat plate in the gap between two adjacent ribs, and a rib in the gap between two adjacent flat plates.

[0066] From an aesthetic perspective, the outer side of the flat panel (the side facing away from the shaft) is tangent to the shaft's outer wall. This allows for a generally seamless transition between the shaft's outer wall and avoids dead angles between the flat panel and the shaft's outer wall, reducing the risk of hair becoming entangled in these dead angles.

[0067] To improve the uniformity of gravity distribution on the roller brush and reduce its wobbling during rotation, the two sets of flat plate assemblies, symmetrical about the shaft axis, are parallel to each other. Similarly, to ensure uniform gravity distribution, the ribs and flat plates in adjacent rib and flat plate assemblies are perpendicular to each other, meaning that their radial cross-sections form a T-shaped structure.

[0068] It is understandable that in order to achieve the connection between the shaft and the cleaning equipment housing, end covers need to be provided at both ends of the shaft.

[0069] In actual application, the roller brush also needs to be connected to the transmission component of the cleaning equipment, and the roller brush is driven to rotate through the transmission component. Therefore, an outwardly protruding passive gear is also provided on the side of the end cover away from the shaft body. The transmission component of the cleaning equipment engages with the passive gear to drive the roller brush to rotate.

[0070] To reduce the occurrence of hair entanglement around the end cap, the diameter of the end cap can be controlled to be 20 mm to 26 mm, for example, 23 mm. Designing the diameter of the end cap within the above range can prevent hair from being entangled between the end cap and the transmission component of the cleaning device.

[0071] Exemplarily, the number of rib assemblies in the roller brush for cleaning equipment is two groups, and the number of flat plate assemblies is two groups. The rib assemblies are divided into a first rib assembly and a second rib assembly, and the flat plate assembly is divided into a first flat plate assembly and a second flat plate assembly. The first rib assembly includes a plurality of first ribs, with a first rib gap formed between two adjacent first ribs. The second rib assembly includes a plurality of second ribs, with a second rib gap formed between two adjacent second ribs. The first ribs and the second rib gaps correspond to each other, and the second ribs correspond to each other. Similarly, the first flat plate assembly includes a plurality of first flat plates, with a first flat plate gap formed between two adjacent first flat plates. The second flat plate assembly includes a plurality of second flat plates, with a second flat plate gap formed between two adjacent second flat plates. The first flat plates and the second flat plates correspond to each other. The bottom ends of the first ribs are located in the first flat plate gaps, and the bottom ends of the second ribs are located in the second flat plate gaps. The bottom ends of the first flat plates are located in the first rib gaps, and the bottom ends of the second flat plates are located in the second rib gaps. Along the shaft's axial direction, the width of the first rib is smaller than the width of the gap between the first flat plates, the width of the second rib is smaller than the width of the gap between the second flat plates, the width of the first flat plate is smaller than the width of the gap between the first ribs, and the width of the second flat plate is smaller than the width of the gap between the second ribs. The outer side surfaces of the first and second flat plates are both tangent to the outer wall of the shaft, and the outer wall of the first and second flat plates are parallel. The longitudinal cross-sections of the first and first flat plates, as well as the longitudinal cross-sections of the second and second flat plates, both resemble T-shaped structures.

[0072] In the embodiment of the present invention, the filter component adopts a rotating body structure to filter dust through cyclone separation, that is, the filtering dust collecting part includes a dust collecting chamber and a filter component, and the dust filtered and separated by the filter component is stored in the dust collecting chamber. Since dust filtering is performed in the form of cyclone separation, the dust collecting chamber should at least partially form a dust body structure and surround the filter component.

[0073] In the embodiment of the present invention, the rear end portion is mainly used as a carrier of the power part and the operation control part of the mite removal vacuum cleaner, that is, the rear end portion also includes: a rear shell, a motor assembly, a power supply assembly and a grip. The motor assembly is arranged in front of the power supply assembly, which can reduce the height and width of the mite removal vacuum cleaner and increase the overall length. In addition to being more convenient for the operator to hold and operate, compared with the existing mite removal vacuum cleaner, the use radius is increased, and the cleaning time is shortened for the same area of ​​the working area. In addition, the total stroke of the air flow path can be shortened, the loss of suction force is reduced, and the dust collection effect is improved. Preferably, the length from the rear end of the motor to the rear end of the grip of the motor assembly is not less than 230mm. The side of the rear shell is provided with an air outlet of the motor assembly, so that the air flow path starts from the dust suction port of the roller brush opening, passes through the filter dust collection part, the motor assembly, and reaches the air outlet, forming a complete air flow path. The grip is located at the rear of the rear housing, making it easier for the operator to hold and control the device, and is more ergonomically designed. The grip is located above the spherical wheel. When the operator presses the mite removal vacuum cleaner firmly against the work surface, the spherical wheel provides excellent support, preventing the mite removal vacuum cleaner from tipping over. This makes the mite removal vacuum cleaner of this embodiment of the present invention more comfortable to use and significantly enhances the operator's experience. Furthermore, the grip is at least partially formed into a fan ring, making it easier for the operator to grasp and further enhancing user comfort. Reinforcement ribs are also provided within the grip to allow the grip to withstand greater gripping force, making it even easier for the operator to hold and use the device.

[0074] An embodiment of the present invention provides a mite removal vacuum cleaner. The present invention increases the overall length of the vacuum cleaner. Compared with the existing mite removal vacuum cleaner, the operating radius is increased, and the cleaning time is shortened for the working area of ​​the same area; the present invention is provided with a spherical wheel, which has both steering and supporting functions, making it convenient for the user to steer the mite removal vacuum cleaner during use, thereby enhancing the user experience; the present invention uses the structural design of the spherical wheel to make the spherical wheel simpler than the universal wheel structure, and can also prevent fabrics such as sheets from being entangled in the spherical wheel.

[0075] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A mite removal vacuum cleaner, characterized in that: The mite removal vacuum cleaner comprises: a front end portion (1) and a rear end portion (2); The bottom surface of the front end portion (1) is provided with two traveling wheels (3) symmetrical with respect to the central axis of the mite removal vacuum cleaner, the axles of the traveling wheels (3) are fixedly connected to the front end portion (1), and the axles of the traveling wheels (3) are perpendicular to the central axis of the mite removal vacuum cleaner; The bottom surface of the rear end portion (2) is provided with a spherical wheel (4) located on the central axis of the mite removal vacuum cleaner, and the spherical wheel (4) is an axleless wheel; The length of the mite removal vacuum cleaner is not less than 420 mm; The spherical wheel (4) comprises: a ball table shell (5), a wheel ball (6) and a stopper (7); The bottom surface of the rear end portion (2) is provided with a spherical wheel (4) mounting groove, and the table shell (5) is arranged at the opening of the spherical wheel (4) mounting groove, and the table shell (5) is a shell structure corresponding to the side surface of the hemispherical table; The stopper (7) is arranged in the installation groove of the spherical wheel (4); the top of the stopper (7) is fixedly connected to the rear end (2), and the bottom is a spherical crown surface; The wheel ball (6) is arranged in the space between the table shell (5) and the bottom of the stopper (7), and the radius of the spherical surface and the radius of the spherical crown corresponding to the inner wall surface of the table shell (5) are not less than the radius of the wheel ball (6); The inner wall surface of the table shell (5) and the spherical crown surface of the stopper (7) are cospherical, and the radius of the spherical surface is equal to the radius of the wheel ball (6); The stopper portion (7) comprises a columnar portion (8), a transverse portion (9) and an assembly portion (10); The columnar portion (8) is inserted into the mounting groove of the spherical wheel (4) and is fixedly connected to the rear end portion (2) via the assembly portion (10); The transverse portion (9) is arranged at the bottom of the columnar portion (8), and the spherical crown surface is arranged at the center of the bottom surface of the transverse portion (9); The table shell (5) and the rear end portion (2) are an integrated structure; The front end portion (1) comprises: a front housing (11), a filtering and dust collecting portion, a roller brush assembly (12) and a UV assembly (13); The bottom of the front housing (11) is provided with a roller brush opening and a UV opening, the roller brush assembly (12) is arranged at the roller brush opening, and the UV assembly (13) is arranged at the UV opening; a dust suction port is provided at the roller brush opening, and the dust suction port is communicated with the interior of the filter dust collection unit through an air flow passage; The filtering dust collecting part is detachably arranged inside the front shell (11).

2. The mite removal vacuum cleaner according to claim 1, characterized in that: The roller brush shaft of the roller brush assembly (12) is perpendicular to the central axis of the mite removal vacuum cleaner, and the UV lamp of the UV assembly (13) is perpendicular to the central axis of the mite removal vacuum cleaner; the roller brush assembly (12) is arranged in front of the UV assembly (13).

3. The mite removal vacuum cleaner according to claim 2, characterized in that: The filtering dust collecting portion comprises a dust collecting chamber (14) and a filtering assembly (15); the dust collecting chamber (14) at least partially surrounds the filtering assembly (15).

4. The mite removal vacuum cleaner according to claim 1, characterized in that: The rear end portion (2) further includes: a rear housing (16), a motor assembly (17), a power supply assembly (18) and a grip portion (19); The motor assembly (17) is arranged in front of the power supply assembly (18), and the rear housing (16) is provided with an air outlet for the motor assembly (17); The gripping portion (19) is arranged at the rear of the rear housing (16) and is located above the spherical wheel (4).

5. The mite removal vacuum cleaner according to claim 4, characterized in that: At least a portion of the holding portion (19) is a fan ring, and a reinforcing rib is provided inside the holding portion (19).

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