CN114532889B

CN114532889B - Dust collector

Info

Publication number: CN114532889B
Application number: CN202011330550.1A
Authority: CN
Inventors: 马加华; 刘志平; 沈珽; 杜东东
Original assignee: Kingclean Electric Co Ltd
Current assignee: Kingclean Electric Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2023-05-23
Anticipated expiration: 2040-11-24
Also published as: CN114532889A

Abstract

The present invention relates to a vacuum cleaner. Comprising the following steps: a housing; the suction port unit is connected with the shell and is used for sealing the shell, and a pore canal for inserting a dust collection accessory is formed in the suction port unit; and the locking structure comprises a first locking component and a second locking component, the first locking component is arranged on the shell, the second locking component is connected with the suction port unit, the dust collection accessory is used for driving the second locking component to be locked with the first locking component after being inserted into the duct, and the second locking component and the first locking component can be unlocked after the dust collection accessory is pulled out of the duct.

Description

Dust collector

Technical Field

The invention relates to the technical field of dust collection devices, in particular to a dust collector.

Background

The dust collector uses the motor to drive the blade to rotate at high speed, and generates air negative pressure in the sealed shell to suck dust.

A vacuum cleaner generally includes a housing and a floor brush connected to the housing, and how to improve the connection strength between the housing and the floor brush is a technical problem that needs to be solved in the art.

Disclosure of Invention

In view of the above, it is desirable to provide a vacuum cleaner.

A vacuum cleaner, comprising:

a housing;

the suction port unit is connected with the shell and is used for sealing the shell, and a pore canal for inserting a dust collection accessory is formed in the suction port unit; and

the locking structure comprises a first locking component and a second locking component, the first locking component is arranged on the shell, the second locking component is connected with the suction port unit, the dust collection accessory is used for driving the second locking component to be locked with the first locking component after being inserted into the duct, and the second locking component and the first locking component can be unlocked after the dust collection accessory is pulled out of the duct.

In one embodiment, the suction port unit is formed with a mounting groove communicated with the duct, the second locking component is at least partially arranged in the mounting groove, the second locking component comprises a lock pin and an elastic return piece, the elastic return piece is connected with the lock pin and the suction port unit, the dust collection accessory is used for pushing the lock pin to compress the elastic return piece after being inserted into the duct and locked with the first locking component through the lock pin, and the elastic return piece is used for driving the lock pin to be unlocked with the first locking piece after the dust collection accessory is out of contact with the lock pin.

In one embodiment, the mounting groove is a sliding groove, and the lock pin is slidably arranged in the sliding groove.

In one embodiment, the locking pin is rotatably disposed within the mounting slot.

In one embodiment, the locking pin comprises a driving part and a locking part, wherein the driving part is used for extending into the duct before the dust collection accessory is inserted into the duct, and the locking part is used for locking with the first locking component when the driving part is pushed after the dust collection accessory is inserted into the duct.

In one embodiment, the lock pin comprises a driving part and a locking part, the driving part is accommodated in the mounting groove, the dust collection accessory is provided with a protruding part, the protruding part is used for extending into the mounting groove to push the driving part after the dust collection accessory is inserted into the duct, and the locking part is used for locking with the first locking assembly when the driving part is pushed after the dust collection accessory is inserted into the duct.

In one embodiment, the number of locking structures is at least two.

In one embodiment, at least two of the locking structures are disposed radially of the housing.

In one embodiment, the vacuum cleaner further comprises a locking unit arranged between at least two of the locking structures along the circumferential direction of the housing, the locking unit comprising a first locking member and a second locking member capable of locking and unlocking, the first locking member being arranged on the housing, and the second locking member being arranged on the suction port unit.

In one embodiment, the first locking assembly includes a slot structure into which the second locking assembly is insertable when the second locking assembly is locked with the first locking assembly; or (b)

The first locking structure includes a locking ring, and the second locking assembly is capable of hooking the locking ring when the second locking assembly is locked with the first locking assembly. In the above-described vacuum cleaner, when the suction attachment is inserted into the duct of the suction unit, the total weight of the suction unit and the suction attachment increases. When the dust collection accessory is inserted into the duct of the suction port unit, the dust collection accessory drives the second locking component arranged on the suction port unit to be locked with the first locking component arranged on the shell, so that the connection strength of the suction port unit and the shell is improved. When the dust collection accessory is pulled out of the duct of the suction port unit, the second locking component and the first locking component can be unlocked, so that the shell is conveniently separated from the suction port unit.

Drawings

FIG. 1 shows a schematic view of a cleaner in one embodiment of the present application;

figure 2 shows an axial cross-section of the cyclonic separating apparatus comprised in the cleaner of figure 1;

figure 3 shows a top view of the first cyclone unit of figure 2;

FIG. 4 shows an exploded schematic view of a part of the construction of a cyclone separation device according to one embodiment of the present application;

FIG. 5 shows another exploded view of a part of the construction of a cyclone separating apparatus according to one embodiment of the present application;

FIG. 6 shows a cross-sectional view of the ring-shaped wind gate of FIG. 4 in a plane perpendicular to the central axis;

FIG. 6A shows a force analysis diagram of dust particles;

FIG. 6B shows a partial cross-sectional view of two ring gates;

FIGS. 6C and 6D are schematic views of two embodiments of a filter screen and a ring-shaped gate;

FIG. 7 is a schematic view of the power suction port of the main unit device and the exhaust end of the cyclone separating apparatus in the vacuum cleaner according to the embodiment of the present application;

FIG. 8 is a partial schematic view of a locking device of a vacuum cleaner in accordance with one embodiment of the present application mated with surrounding components;

FIG. 9 is a schematic view of the locking device of FIG. 8;

FIG. 10 is a schematic diagram of the shackle and locking member forming a self-locking engagement;

FIG. 11 is a schematic view of the structure of the cyclonic separating apparatus in one embodiment of the present application with the mouthpiece unit open relative to the housing;

FIG. 12 is a schematic view of the cyclonic separating apparatus of FIG. 11 from another perspective;

FIG. 13 is a schematic view of a cleaner from another perspective in accordance with one embodiment of the present application;

FIG. 14 is a schematic diagram of a housing of a host device according to another embodiment;

FIG. 15 is a schematic view showing the structure of the suction port unit mated with the housing shown in FIG. 14;

FIG. 16 is a schematic view of a part of the structure of a vacuum cleaner in one embodiment;

figure 17 is a schematic view of the structure of the mouthpiece unit of figure 16 perpendicular to the axial direction.

Reference numerals: 100. a cyclone separation device; 110. a first cyclone unit; 120. a second cyclone unit; 121. a base; 122. an annular wind gate; 122A, filtering mouth; 122A1, a filter port; 122A2, a filter; 122B, top plate; 122C, blades; 122D, an airflow guide; 122F, stop grooves; 122G, a flow guiding part; 123. a filter screen; 130. a housing; 130A, inner side walls; 131A, the suction end; 131B, an exhaust end; 131C, a first wire chase; 131D, a second wire slot; 131E, first wires; 131F, a second wire; 131G, locking member; 132. a suction port unit; 132A, a first electrical component; 132B, end caps; 132C, a suction nozzle; 132C1, pore channel; 132C2, chute; 133. a rotation shaft; 133A, first via holes; 141. the first air duct is turned over; 142. the second air duct is turned over; 142A, a first barrier; 142B, a second barrier; 143C, a grid cavity; 151. a first dust chamber; 152. a second dust chamber; 161. a first air inlet duct; 161A, a first air inlet; 161B, a first air outlet; 162. a second air inlet duct; 162A, a second air inlet; 162B, a second air outlet; 162C, a straight air duct; 162D, a spiral duct; 163. an exhaust duct; 170. a filter element; 180. a locking unit; 190. an elastic unlocking member; 200. a host device; 201. a second via hole; 202. the connecting rotating shaft; 210. a handle; 220. a battery unit; 230. a motor unit; 231. a power suction port; 240. a magnetic reed switch; 241. a magnetic member; 300. a locking device; 310. locking; 310A, a shaft portion; 311. a hooked end; 312. a driving end; 320. an unlocking unit; 321. a connecting rod; 321A, a first rod end; 321B, a second rod end; 322. a button; 323. a second elastic member; 330. a first elastic member; 41. wind flow; 42. wind flow; 43. wind flow; x, a first electrical connector; y, a second electrical connection; l1, L2, L3, wind flow; g1, G2, dust particles; 400. a locking structure; 410. a first locking assembly; 420. a second locking assembly; 421. a locking pin; 4211. a driving section; 4212. a locking part; 422. and (5) elastic recovery.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

Figure 1 shows a schematic structural view of a vacuum cleaner in one embodiment of the present application. The cleaner includes a main unit 200 and a cyclonic separating apparatus 100.

The host device 200 includes a handle 210, one end of the handle 210 is connected with a battery unit 220, and the other end of the handle 210 is connected with a motor unit 230. The battery unit 220 is used for providing power, and the motor unit 230 rotates after being energized, thereby generating pumping power.

The cyclone separating apparatus 100 is connected to the main apparatus 200. As shown in fig. 2, fig. 2 shows an axial cross-section of the cyclonic separating apparatus 100 comprised in the cleaner of fig. 1. The cyclonic separating apparatus 100 comprises a housing 130 and a cyclonic separating assembly provided in the housing 130.

Wherein the cyclone assembly has two dust chambers, a first dust chamber 151 and a second dust chamber 152, respectively. The main unit 200 provides suction power to form a wind flow. The first dust chamber 151 is disposed upstream and the second dust chamber 152 is disposed downstream in the direction of the wind flow. The first cyclone is generated in the first dust chamber 151, and the second cyclone is generated in the second dust chamber 152. The dust-carrying wind flow completes the separation of large particle dust in the first dust chamber 151, then completes the separation of small particle dust in the second dust chamber 152, and then the clean wind flow enters the main unit device 200.

Specifically, as shown in fig. 2, the cyclone separating assembly is disposed in the housing 130, and a first dust chamber 151 is formed between the cyclone separating assembly and the inner sidewall 130A of the housing 130. The cyclone separating assembly includes a first cyclone unit 110 and a second cyclone unit 120, and the second cyclone unit 120 is connected to the first cyclone unit 110. The second cyclone unit 120 is provided with a second dust chamber 152 therein. The first cyclone unit 110 is used to form a first cyclone in the first dust chamber 151, and the second cyclone unit 120 is used to form a second cyclone in the second dust chamber 152.

As shown in fig. 2, the second cyclone unit 120 is formed with a first air inlet duct 161, and the first cyclone unit 110 is formed with a second air inlet duct 162. The first air inlet channel 161 is communicated with the second air inlet channel 162, the second air inlet channel 162 is communicated with the first dust chamber 151, and the second dust chamber 152 is communicated with the first dust chamber 151. The first cyclone unit 110 is formed with an exhaust duct 163. The exhaust duct 163 communicates with the second dust chamber 152.

Specifically, the first air inlet duct 161 has a first air inlet 161A and a first air outlet 161B. The second air inlet duct 162 has a second air inlet 162A and a second air outlet 162B. The first air outlet 161B communicates with the second air inlet 162A. The second air outlet 162B communicates with the first dust chamber 151.

The airflow has a flow path from the first air inlet 161A to the first air inlet 161, from the first air outlet 161B of the first air inlet 161 to the second air inlet 162A, and from the second air outlet 162B of the second air inlet 162 to the first dust chamber 151. A first cyclone is formed in the first dust chamber 151. The first cyclone enters the second dust chamber 152 and is converted into a second cyclone in the second dust chamber 152. The second cyclone enters the host device 200 from the air discharge duct 163.

Further, the second air inlet duct 162 includes a straight duct 162C and a spiral duct 162D. The straight air duct 162C is connected to the spiral air duct 162D. More specifically, the straight duct 162C has a second air inlet 162A, and the spiral duct 162D has a second air outlet 162B. The second air inlet 162A of the straight air duct 162C is connected to the first air outlet 161B of the first air inlet duct 161. The second air outlet 162B of the spiral duct 162D is connected to the first dust chamber 151. One end of the straight air duct 162C, which is far from the second air inlet 162A, is connected to one end of the spiral air duct 162D, which is far from the second air outlet 162B.

As shown in fig. 3, fig. 3 shows a top view of the first cyclone unit 110 of fig. 2. The straight duct 162C, the spiral duct 162D, and the second air outlet 162B can be seen in fig. 3. The straight air duct 162C is located at substantially the middle of the first cyclone unit 110 and extends along the central axis direction of the first cyclone unit 110. The first air inlet duct 161 and the straight air duct 162C are provided in the middle of the housing 130. The second air outlet 162B is substantially located at the outer periphery of the first cyclone unit 110. The spiral duct 162D extends spirally from the middle of the first cyclone unit 110 to the outer circumference of the first cyclone unit 110, and the spiral duct 162D has a shape similar to that of a scroll case. The dashed lines in fig. 3 also show the trajectory of the wind flow. When the air flow is discharged from the second air outlet 162B of the spiral duct 162D, the air flow is discharged substantially along a tangential line of the outer circumference of the first cyclone unit 110. Further, as shown in fig. 2, the second air outlet 162B of the spiral duct 162D is directed toward the inner sidewall 130A of the housing 130. It is to be understood that when the entire inner side wall 130A of the housing 130 is substantially a cylindrical surface, the shape of the inner side wall 130A of the housing 130 is circular in a section perpendicular to the central axis of the cylindrical surface; the normal direction of the second air outlet 162B is not along the circular radial direction, but forms a certain included angle with the circular radial direction.

The above-mentioned structure makes the wind flow enter the cyclone separating apparatus 100 from the middle portion of the cyclone separating apparatus 100 along the axial passage, and forms the first cyclone around the middle portion of the cyclone separating apparatus 100, so that the cyclone separating apparatus 100 is more compact in structure. In addition, the spiral duct 162D has a shape similar to that of a spiral case, so that the wind flow forms a first cyclone in the first dust chamber 151, thereby pressing dust and other particles carried in the wind flow downward into the bottom of the first dust chamber 151, and completing the first filtering. It should be noted that the second air outlet 162B should not be too large, so as to ensure that the air flow discharged from the second air outlet 162B has a large centrifugal force, thereby improving the separation effect of dust.

Figure 4 shows an exploded schematic view of a part of the construction of a cyclonic separating apparatus 100 according to one embodiment of the present application. Figure 5 shows another exploded view of a part of the construction of a cyclonic separating apparatus 100 according to one embodiment of the application. As shown in fig. 4 and 5, the cyclone separating apparatus 100 includes a first cyclone unit 110 and a second cyclone unit 120. The first cyclone unit 110 and the second cyclone unit 120 are assembled as shown in fig. 2. The second cyclone unit 120 includes a base 121, an annular louver 122, and a filter screen 123. The base 121 is connected to the lower end of the housing 130. The upper end of the base 121 is connected with an annular wind gate 122. The filter screen 123 is annular, and the filter screen 123 cover is established in annular fan gate 122 periphery. The annular wind gate 122 has a plurality of filter openings 122A, and the filter openings 122A are strip-shaped and are arranged on the periphery of the annular wind gate 122 along the annular shape. The second dust chamber 152 is disposed in the base 121, and the first dust chamber 151 communicates with the second dust chamber 152 through the filter openings 122A of the annular louver 122. Specifically, the wind flows in the first dust chamber 151, first through the filter screen 123, then through the filter openings 122A of the annular wind gate 122, and then into the second dust chamber 152.

As shown in FIG. 6, FIG. 6 shows a cross-sectional view of the ring shaped gate 122 of FIG. 4 in a plane perpendicular to the center axis. Outside the filter screen 123 is a first dust chamber 151, and the annular wind gate 122 is arranged inside the filter screen 123. The annular wind gate 122 can be attached to the inner wall of the filter screen 123, or can have a certain gap with the inner wall of the filter screen 123. Also shown in figure 6 is the direction of the airflow which is generally in the direction shown in the figure spiraling from the first dirt chamber 151 into the second dirt chamber 152 and creating a second cyclone in the second dirt chamber 152. The first dust chamber 151 and the second dust chamber 152 are coaxially arranged, the straight air duct 162C is located at the central axis of the first dust chamber 151, and since the movement track of the wind passes through the straight air duct 162C, the spiral air duct 162D, the first dust chamber 151 and the second dust chamber 152 in sequence, the dust carried by the wind entering the inside of the annular wind gate 122 is collected in the second dust chamber 152 under the action of the spiral centrifugal force in the second dust chamber 152. As shown in FIG. 6, the specific structure of the ring shaped gate 122 is further illustrated. Referring to fig. 5 and 6, the annular wind gate 122 includes a circular top plate 122B and a plurality of strip-shaped blades 122C connected to the top plate 122B. The top plate 122B may be connected to the first cyclone unit 110 by a screw. The blades 122C are disposed around the ring, and the blades 122C are inclined with respect to the radial direction of the ring-shaped louver 122. Filter openings 122A are formed between adjacent blades 122C. The blade 122C is provided outside with an airflow guide 122D. The airflow guide 122D forms a stopper groove 122F with the vane 122C. The blocking groove 122F may be acute, and a guide portion 122G for guiding the wind flow is formed at a side complementary to the blocking groove 122F. That is, the wind flow is guided by the guiding portion 122G so that the wind flow does not enter the annular wind gate 122 along the radial direction of the annular wind gate 122, and the wind flow is guided by the guiding portion 122G and then is tangentially guided by the blades 122C. As shown in fig. 6, the wind flow is spirally flowing in the first dust chamber 151, and a flow schematic of three wind flows is shown in fig. 6, wherein one wind flow 41 can directly pass through the filter opening 122A, one wind flow 42 can be blocked by the airflow guiding member 122D on the blade 122C, and the wind flow 42 bypasses the airflow guiding member 122D and enters the filter opening 122A. One of the wind streams 43 flows around the periphery of the annular wind gate 122. Because dust particles are carried in the wind flow, a part of dust particles with smaller diameters flow through the filter openings 122A along with the wind, and a part of dust particles with larger diameters are deposited to the bottom of the first dust chamber 151 under the action of the spiral force of the cyclone. Specifically, the wind flow filters larger particles in the wind flow by the filter screen 123 before contacting the blades 122C and the airflow guide 122D, and the larger particles sink to the bottom of the first dust chamber 151 due to the spiral force. Some of the smaller particles will pass through the filter opening 122A into the interior of the second cyclone unit 120 and form a second cyclone in the second dust chamber 152.

It should be noted that, the mesh diameter of the filter screen 123 may be about 1mm, and the filter screen 123 filters larger particles in the wind flow, and as the usage time passes, the larger particles may clog the mesh of the filter screen 123, resulting in a reduction of the suction force of the suction port unit 132 (shown in fig. 7). In this embodiment, the larger dust particles are prevented from blocking the filter screen by arranging the annular wind gate 122 to reduce the larger dust particles from entering the filter screen 123, and the working principle of the annular wind gate 122 is described below by analyzing the stress of the larger dust particles.

As shown in fig. 6A, fig. 6A is a force analysis diagram of larger dust particles G1 and G2. Two kinds of filter openings 122A1 and 122A2 are shown on the annular wind gate 122, the annular wind gate 122 forming the filter opening 122A1 is not provided with an airflow guiding piece 122D, and the annular wind gate 122 forming the filter opening 122A2 is the annular wind gate 122 with the airflow guiding piece 122D shown in FIG. 6. Referring to FIG. 6, the airflow guides 122D are disposed generally radially of the annular louver 122, which is the radial of the outer contour of the annular louver 122.

The effect of the two filter openings 122A1 and 122A2 on dust particles was analyzed below, respectively.

The dust particles G1 and G2 have a tendency to move annularly in the direction of the wind flow 43.

For dust particles G1:

the dust particles G1 are subjected to centrifugal force fresh and suction force fshuck in a direction along the extending direction of the filter openings 122 A1. The centrifugal force fshake to which the dust particles G1 are subjected may counteract part of the suction force fshake, so that the suction force fshake still is able to attract the dust particles G1 towards the filter opening 122 A1.

For dust particles G2:

the dust particles G2 are also subjected to centrifugal force fresh and suction force fsorption, the direction of which is along the extending direction of the filter opening 122 A2. The centrifugal force fshake to which the dust particles G2 are subjected counteracts the entire suction force fshake, so that the suction force fshake cannot attract the dust particles G2 toward the filter opening 122 A2.

Therefore, it is not easy for the dust particles G2 at the filter port 122A2 to clog the mesh of the filter screen 123. For embodiments without the filter screen 123, the airflow guide 122D is disposed substantially along the radial direction of the annular louver 122, so that dust particles do not easily enter the annular louver 122. While some fine dust, even if entering the annular louver 122, can form a spiral motion in the second dust chamber 152, and is collected in the second dust chamber 152 by the action of the spiral centrifugal force. As shown in fig. 6B, fig. 6B shows a partial cross-sectional view of two kinds of ring-shaped wind gates 122, and the upper part in fig. 6B shows a partial cross-sectional view of the ring-shaped wind gate 122 shown in fig. 6, and the lower part in fig. 6B shows a structure different from that shown in the upper part in fig. 6B in that the relative positions of the airflow guide 122D and the blade 122C are different. The flow guide 122G shown in the upper part of fig. 6 includes a portion of the airflow guide 122D and a portion of the vane 122C. The flow guide 122G shown in the lower part of fig. 6 is the entire airflow guide 122D. The angle between the direction of guiding the wind flow by the guiding portion 122G in the upper portion of fig. 6B and the tangential direction of the annular wind gate 122 is smaller, but the angle between the direction of guiding the wind flow by the guiding portion 122G in the lower portion of fig. 6B and the tangential direction of the annular wind gate 122 is larger. Thus, the structure of the upper portion of FIG. 6B enables stronger cyclones to be formed in the second dust chamber 152.

As shown in fig. 6, the distance L1 between the air flow guide 122D on both sides of the flow guiding portion 122G and the end portion of the blade 122C may be 5mm to 6mm, for example, may be 5.5mm;

the length L2 of the blade 122C may be 15mm-16mm, for example, 15.5mm.

The width L3 of the filter openings 122A formed between two adjacent blades 122C may be 2mm to 3mm, for example, may be 2.5mm. When the value of L3 is small, the pressure drop caused by the ring-shaped louver 122 may be increased, resulting in a loss of pumping energy, while when the value of L3 is large, the tangential acceleration effect of the flow guiding portion 122G on the air flow is reduced, resulting in a reduction in cleaning performance. The suction energy and the cleaning force can be combined by selecting the numerical value of the middle position in the range.

The distance L4 between the end of the airflow guide 122D and the blade 122C may be 2mm-3mm, for example, may be 2.5mm.

The maximum radius of the circular wind gate 122 is R, and since the blades 122C of the circular wind gate 122 are inclined, the maximum radius is the furthest distance from the center of the circle on the blades 122C. The value of R may be 35mm to 40mm. When the inner wall of the filter screen is abutted against the annular wind gate 122, the radius of the filter screen is also approximately 35mm-40mm. The angle α between the length of the blade 122C and the radius R of the ring shaped gate 122 may be 55-75, such as 70.

Since the number of the blades 122C, the length of the blades 122C and the inclination angle of the blades have influence on the filtering effect and the cleaning capability of the dust collector, for example, the number of the blades 122C is large, so that the blades 122C are densely distributed, and the filtering effect on dust is good, but the pressure drop of the annular wind gate 122 is correspondingly increased, so that the pumping energy loss is caused, and the number of the blades 122C is small, and the pumping energy loss is small, but the filtering effect is reduced. For example, the inclination angle of the blade 122C (in this embodiment, the complementary angle of the blade 122C with respect to the radius R is the included angle α) also affects the intensity of the secondary cyclone formed in the annular wind gate 122, and the larger the inclination angle of the blade 122C, the smaller the intensity of the secondary cyclone in the annular wind gate 122, and the shorter the length of the blade 122C, the smaller the intensity of the secondary cyclone in the annular wind gate 122. By reasonably setting the number, length and inclination angle of the blades 122C, the dust collector achieves better dust particle filtering effect and cleaning force. Preferably, the number of the blades 122C may be 15, the length L2 of the blades 122C may be 15.5mm, and the inclination angle of the blades 122C may be 20 °.

Fig. 6C and 6D are schematic structural views of the filter mesh 123 and the annular wind gate 122 in two embodiments. It should be noted that, in the embodiment shown in fig. 6, the end of the blade 122C of the annular wind gate 122 and the end of the airflow guide 122D may be attached to the filter screen 123, or may form a certain gap with the filter screen 123, and the filter screen 123 of the embodiment shown in fig. 6 is still provided with a mesh in a region between the end of the airflow guide 122D and the end of the blade 122C, and dust particles that are in cyclone motion outside the filter screen 123 may enter the stop groove 122F through the mesh on the filter screen. However, since the air pressure of the stopper groove 122F is substantially the same as the air pressure outside the filter net 123, the stopper groove 122F has no suction force on dust, and therefore, dust is not substantially accumulated in the stopper groove 122F. To further prevent dust accumulation within the stopper groove 122F, the embodiment shown in fig. 6C and 6D is provided. The embodiment shown in fig. 6C and 6D can prevent dust from accumulating in the stopper groove 122F.

As shown in fig. 6C, in one embodiment, the end of the airflow guide 122D and the end of the blade 122C are abutted against the filter mesh 123, and the area between the end of the airflow guide 122D and the end of the blade 122C is made to be mesh-free. As shown in fig. 6D, the embodiment shown in fig. 6D differs from the embodiment shown in fig. 6C in that the stopper groove 122F in fig. 6C is physically filled until the stopper groove 122F disappears.

By providing the annular louver 122, the direction of the airflow enters the second dust chamber 152 through the filter openings 122A substantially along a tangential direction to the outer periphery of the annular louver 122, and the airflow accelerates as it passes through the annular louver 122 to form a second cyclone in the second dust chamber 152. The direction of extension of the filter openings 122A on the circular louver 122 can affect the wind speed of the second cyclone. As shown in fig. 6A, if the angle between the extending direction of the filter opening 122A and the radial direction of the annular wind gate 122 is too small, for example, the angle between the extending direction of the filter opening 122A2 and the radial direction of the annular wind gate 122 is 0, the acceleration degree of the wind flow passing through the filter opening 122A2 is insufficient, so that the wind speed of the second cyclone is slow; the extending direction of the filter opening 122A1 forms a larger included angle with the radial direction of the annular wind gate 122, so that the acceleration degree of the wind flow passing through the filter opening 122A1 is larger, and therefore, the wind speed of the second cyclone is larger.

The present application and the provision of an embodiment which differs from the various embodiments described above in that, in connection with figure 6, the cleaner in this embodiment eliminates the filter mesh 123 of figure 6 which is disposed outside the circular air gate 122. Dust particles in the air flow are stopped by the stopping groove 122F. Other features of this embodiment are described in the above embodiments. In this embodiment, the annular louver 122 provides suction, and the air flow outside the annular louver 122 spirals around the outer circumference of the annular louver 122 and enters the interior of the annular louver 122 through the filter openings 122A.

For the embodiment in which the filter screen 123 is disposed outside the annular wind gate 122, under the blocking of the filter screen 123, most of the airflow enters the annular wind gate 122 along the track of the airflow 41 shown in fig. 6, at this time, the particles in the airflow 41 are blocked by the filter screen 123 outside, and the particles in the airflow 41 may block the filter screen 123.

For the embodiment where the filter screen 123 is not disposed outside the annular wind gate 122, in the track shown in the airflow 42 in fig. 6, the dust in the airflow 42 may be stopped by the stop groove 122F, and may slide down the stop groove 122F into the bottom of the first dust chamber 151 and be contained in the first dust chamber 151. Therefore, this embodiment does not provide the filter screen 123, and can effectively prevent the filter screen 123 from being clogged. Since the filter screen 123 is eliminated, suction of the cleaner is not attenuated by the filter screen 123, and thus suction of the cleaner can be improved.

As shown in fig. 2, the second cyclone unit 120 further includes a second air duct flange 142 connected to the base 121, and the second air duct flange 142 extends into the first dust chamber 151. Along the axial direction of the housing 130, the annular air gate 122 is located between the second air outlet 162B and the second air duct flange 142. The second air duct flange 142 includes a first blocking portion 142A and a second blocking portion 142B disposed on an outer periphery of the first blocking portion 142A, and a blocking cavity 143C is formed between the first blocking portion 142A and the base 121. The first cyclone in the first dust chamber 151 gathers dust particles at the bottom of the first dust chamber 151, and the dust particles at the bottom of the first dust chamber 151 can be prevented from moving upward by the first and

second barrier parts

142A and 142B and enter the second dust chamber 152 through the annular louver 122.

As shown in FIG. 2, the cyclonic separating apparatus 100 further comprises a first ducting flange 141. The first air duct flange 141 is disposed at a junction of the first air inlet duct 161 and the second air inlet duct 162, and forms a seal at the junction of the first air inlet duct 161 and the second air inlet duct 162. The skirt of the first air duct flange 141 extends into the second dust chamber 152. The first duct flange 141 is located at approximately the middle of the second dust chamber 152 along the axial direction of the housing 130. The air exhausting duct 163 of the cyclone separating apparatus 100 is connected to a filter 170, and the filter 170 may be a hepa filter, and the air passing through the air exhausting duct 163 passes through the filter 170 and then enters the main unit 200. The inlet of the air exhausting duct 163 is located above the first air duct flange 141, and the second cyclone in the second dust chamber 152 gathers small dust particles at the bottom of the second dust chamber 152, and the first air duct flange 141 can prevent dust at the bottom of the second dust chamber 152 from entering the air exhausting duct 163, thereby preventing the dust particles from blocking the filter element 170.

Further, a first air inlet duct 161 is provided at the middle of the second cyclone unit 120. The second dust chamber 152 is provided at the outer periphery of the first air inlet duct 161. The first air inlet channel 161 and the second air inlet channel 162 are detachably arranged. From the perspective of mold design, the detachable air duct is beneficial to thin-wall design, and the mold design of the cyclone separation device 100 is simplified. As shown in FIG. 5, the second dust chamber 152 has a generally conical configuration. Specifically, along the direction of the central axis of the second cyclone unit 120, the cross-sectional area of the top of the second dust chamber 152 is large, the cross-sectional area of the bottom is small, and the wind speed of the second cyclone from top to bottom is increased, which helps to improve the separation effect of dust.

Fig. 7 is a schematic view showing a structure in which the power suction port 231 of the main unit device 200 is separated from the exhaust end 131B of the cyclone separating apparatus 100 in the vacuum cleaner according to the embodiment of the present application. As shown in fig. 7, the cleaner in one embodiment includes a main unit 200 and a cyclonic separating apparatus 100. The main machine unit 200 and the cyclone separating apparatus 100 are rotatably coupled so that the power suction port 231 of the main machine unit 200 can be docked with or separated from the discharge end 131B of the cyclone separating apparatus 100.

Further, as shown in fig. 7, the power suction port 231 of the host device 200 is used to provide suction power. For example, the host device 200 includes a handle 210, a battery unit 220, and a motor unit 230. The handle 210 is used as a hand-held portion of the cleaner. The battery unit 220 is used to supply power for the operation of the entire cleaner. The motor unit 230 is electrically connected to the battery unit 220 to provide suction power to the entire cleaner when the battery unit 220 provides electric power. When the power suction port 231 of the main unit 200 is docked with the exhaust end 131B of the cyclone separating apparatus 100, the motor unit 230 provides suction power, and the wind flow enters the cyclone separating apparatus 100 from the suction nozzle 132C of the cyclone separating apparatus 100, and the separation of wind and dust particles is completed in the first cyclone unit 110 and the second cyclone unit 120 of the cyclone separating apparatus 100. Dust particles remain in the first and

second dust chambers

151 and 152 of the cyclone separating apparatus 100, and clean wind enters the motor unit 230 from the exhaust end 131B of the cyclone separating apparatus 100 and is then discharged from the cleaner by the motor unit 230.

It should be noted that, in order to prevent dust particles from entering the motor unit 230 from the exhaust end 131B of the cyclone separating apparatus 100 and damaging the motor unit 230, the exhaust end 131B of the cyclone separating apparatus 100 is provided with the filter element 170. After the discharge end 131B is docked with the power suction port 231, the wind discharged through the discharge end 131B needs to pass through the filter element 170 to enter the power suction port 231. Wherein the filter element 170 may be a hepa screen. The HEPA filter, also known as a HEPA filter, is made of laminated borosilicate microfibers, which remove at least 97.00% of the particles in the wind stream passing through the HEPA filter, which may be as small as 0.3 microns in diameter. Wherein the filter element 170 is removably mounted to the exhaust end 131B. When cleaning or replacement of the filter element 170 is required, the exhaust end 131B and the power suction opening 231 of the cleaner can be separated, and then the filter element 170 can be replaced or the filter element 170 can be removed for cleaning.

The filter element 170 is a key element to ensure that the motor unit 230 is not damaged by dust particles. When the filter element 170 is replaced or removed to clean the filter element 170, the filter element 170 may be forgotten to be installed back into the exhaust end 131B. In order to be able to prevent this, the main unit 200 is provided with a detection unit for detecting whether the filter element 170 is mounted at the exhaust end 131B of the cyclone separation device 100. Specifically, the magnetic member 241 is provided in the filter element 170, and the control element is provided in the host device 200. The detection unit comprises a reed switch 240 electrically connected to the control element. When the discharge end 131B is docked with the power suction port 231, the reed switch 240 senses the magnetic member 241 and then generates a sensing signal for transmission to the control element. Only after the control element receives this sensing signal will the motor unit 230 of the cleaner be activated.

The operation principle of the reed switch 240 and the magnetic member 241 is further explained below. Reed switch 240 may be embodied as a reed switch. When the exhaust end 131B is docked with the power suction port 231, the design distance between the magnetic element 241 on the filter element 170 in the exhaust end 131B and the reed switch is about 2.5 mm. In addition, the reed switch is a mechanical device, and an external power supply is not needed when the reed switch works. And the hall switch needs to have an operating power supply for operation. Therefore, when the hall switch is used as a member of the detecting unit for detecting whether the filter element 170 is mounted on the exhaust port 131B, the requirements for the working environment are more severe than the stability of the reed switch.

As shown in fig. 7, the cleaner further includes a locking device 300 for locking the cyclone separating apparatus 100 and the main unit 200 when the exhaust end 131B is docked with the power suction port 231, and the locking device 300 also serves to unlock the cyclone separating apparatus 100 and the main unit 200.

The detailed structure of the locking device 300 is further described below. Fig. 8 is a partial schematic view of the locking device 300 of the dust collector in an embodiment of the present application, and fig. 9 is a schematic structural view of the locking device 300 in fig. 8. As shown in fig. 8, the cyclone separating apparatus 100 includes a housing 130, and a locking member 131G is provided at an exhaust end 131B of the housing 130. The locking device 300 includes a catch 310 for hooking the locking member 131G. The locking device 300 further comprises an unlocking unit 320 for driving the shackle 310 out of locking engagement with the locking member 131G. The latch 310 is rotatably coupled to the host device 200. Specifically, the shackle 310 has a hooked end 311 and a driving end 312. The locking device 300 further includes a first elastic member 330 for elastically abutting against the catch 310 to keep the hooking end 311 hooked to the locking member 131G. The first elastic member 330 may be a spring. When unlocking, the unlocking unit 320 is used for abutting the driving end 312 to disengage the hook end 311 from the locking piece 131G.

Referring to fig. 8 and 9, the portion of the latch 310 that is rotatably connected to the host device 200 is a rotational position. The distance between the hook end 311 and the rotation position is greater than the distance between the driving end 312 and the rotation position. That is, the latch 310 forms a lever structure, and has a labor-saving effect when unlocked.

As shown in fig. 8 and 9, the unlocking unit 320 includes a link 321 and a button 322. The link 321 has a first rod end 321A and a second rod end 321B. The portion between the first rod end 321A and the second rod end 321B is rotatably connected to the host device 200. The first rod end 321A is configured to abut against the driving end 312. The button 322 is used for pressing the second rod end 321B, and since the connecting rod 321 is rotatably connected to the host device 200, when the button 322 presses the second rod end 321B, the first rod end 321A can be lifted up to drive the latch 310 to rotate, so that the latch 310 and the locking member 131G are disengaged from each other. The button 322 is also connected with a second elastic member 323 for driving the button 322 to return. The second elastic member 323 may be a spring. When the button 322 is pressed, the button 322 compresses the second elastic member 323, and when the button 322 is not pressed, the second spring pushes the button 322 back to the original position. It should be noted that the second elastic member 323 may not be provided, and the lock catch 310 may be driven to rotate to unlock by rotating the link 321 after the button 322 is pressed. Rotation of the latch 310 also compresses the first resilient member 330. When the button 322 is not pressed, the first elastic member 330 drives the latch 310 to rotate reversely to return, so that the driving end 312 presses the first rod end 321A of the connecting rod 321 downwards to drive the connecting rod 321 to rotate reversely, and the second rod end 321B pushes the button 322 up to return the button 322. The second elastic member 323 thus mainly plays a role of assisting force. The link 321 and the latch 310 of the locking device 300 are formed to be small, so that the structure of the cleaner is more compact.

Referring to fig. 7, after the locking device 300 is unlocked, the cyclone separating apparatus 100 may be rotated in a clockwise direction under its own weight to separate the power suction port 231 from the discharge end 131B. In addition, as shown in fig. 8 and 9, the hooking end 311 is bent leftward, and the locking piece 131G is bent rightward, which can form a self-locking engagement. After the power suction port 231 is in butt joint with the exhaust end 131B and is locked by the locking device 300, under the self-weight action of the cyclone separating device 100, the hook end 311 and the locking piece 131G are matched for self-locking, so that firm locking of the cyclone separating device 100 and the host device 200 is realized. As shown in fig. 10, fig. 10 is a schematic diagram of the latch 310 and the locking member 131G forming a self-locking engagement. In fig. 10, the rotational position of the cyclone separating apparatus 100 and the host apparatus 200 is the connection shaft 202, and the rotational position of the latch 310 and the host apparatus 200 is the shaft portion 310A. When the cyclone separating apparatus 100 is broken down by the self weight of the cyclone separating apparatus 100 or the user, the cyclone separating apparatus 100 is rotated about the connection shaft 202 in the clockwise direction while the locker 310 is driven to rotate about the shaft portion 310A in the clockwise direction by the engagement of the hooking end 311 and the locker 131G. At a position where the locking member 131G collides with the hooking end 311 of the locker 310, the locking member 131G provides a force F1 to the hooking end 311, and the direction of the force F1 is tangential to the rotation direction of the locking member 131G. The force F1 generates an upward component force F2, and the hook end 311 of the lock catch 310 rotates counterclockwise around the shaft portion 310A under the action of the component force F2, so that self-locking is formed.

One embodiment of the present application provides a vacuum cleaner including a dust separating apparatus and a motor-driven suction fitting. Wherein the dust separating device is for separating dust from the airflow. The dust separating apparatus may be, for example, a cyclonic separating apparatus 100 which separates dust from an airflow by centrifugal force of the cyclones. As another example, the dust separating apparatus may be a filter member provided with a filter hole for filtering dust so that the air flow can pass through the filter member and the dust cannot pass through the filter member.

The dust separating apparatus includes a suction port unit 132 and a housing 130 having a suction end 131A and a discharge end 131B, the suction port unit 132 including an end cap 132B, a suction nozzle 132C connected to the end cap 132B, and a first electrical component 132A provided on the suction nozzle 132C, the end cap 132B being capable of interfacing with the suction end 131A. In the following, the cyclone separating apparatus 100 will be described in detail by taking the cyclone separating apparatus 100 as an example, and as shown in FIG. 11, the cyclone separating apparatus 100 includes a housing 130 and a suction port unit 132. The housing 130 has a suction end 131A and a discharge end 131B. The housing 130 is rotatably coupled to the host device 200 through the coupling shaft 202 such that the exhaust port 131B can interface with the power suction port 231 of the host device 200. The suction port unit 132 has a rotation shaft 133 rotatably connected to the housing 130, and the suction port unit 132 is rotated with respect to the housing 130 by the rotation shaft 133 so that the suction port unit 132 can abut against the suction end 131A. As shown in fig. 11, when the suction port unit 132 rotates with respect to the housing 130 and opens the housing 130, dust in the first dust chamber 151 and the second dust chamber 152 in the housing 130 can be cleaned by the suction end 131A. As shown in fig. 12, fig. 12 is a schematic view of the cyclone separating apparatus 100 of fig. 11 from another perspective. The rotary shaft 133 is provided with a first wire passing hole 133A communicating with the inside of the suction port unit 132, and the suction port unit 132 is provided with a first electric element 132A. The outer side wall of the housing 130 is provided with a wire groove in which wires electrically connected with the control element of the host device 200 are provided. The wire passes through the first wire passing hole 133A into the suction port unit 132 and is electrically connected to the first electrical component 132A. The first electrical component 132A may be a terminal for energizing. When the suction port unit 132 of the cleaner is equipped with an electric dust collection accessory such as an electric floor brush, the electric floor brush is electrically connected to the first electric element 132A, so that the electric floor brush can be supplied with electric power through the battery unit 220 of the main unit 200, and the operation of the electric floor brush is controlled by the control element of the main unit 200. The electric dust collection fitting has a second electric element, and when the electric dust collection fitting is mounted on the suction unit 132, the second electric element is electrically connected with the first electric element 132A.

The electric floor brush is connected to the suction unit 132, and the suction unit 132 needs to be openable with respect to the housing 130 to clean dust particles in the housing 130. The mouthpiece unit 132 is not directly connected to the host device 200, but is connected to the host device 200 through the housing 130. The electric floor brush connected to the suction port unit 132 requires the main unit 200 to supply power and control signals to operate properly. By providing the first wire passing hole 133A for passing the wire, which communicates with the suction port unit 132, on the rotation shaft 133, the wire is effectively prevented from being worn out when the suction port unit 132 rotates with respect to the housing 130, and also prevented from being damaged by a large pulling force or a bending force, and the safety performance of the cleaner is improved.

As shown in fig. 12, the wire chase may include a first wire chase 131C and a second wire chase 131D. The conductive lines may include a first conductive line 131E and a second conductive line 131F. The first conductive wire 131E is disposed in the first wire groove 131C, and the second conductive wire 131F is disposed in the second wire groove 131D. Both ends of the first via hole 133A along the axis thereof have inlets, and the first and

second wires

131E and 131F enter the first via hole 133A from the inlets at both ends of the first via hole 133A, respectively. The middle position of the first wire passing hole 133A communicates with the inside of the suction port unit 132, and the wire entering the first wire passing hole 133A can enter the suction port unit 132 through the middle position of the first wire passing hole 133A and electrically connect with the first electric element 132A of the suction port unit 132. The first wire 131E may be a driving wire of the electric ground brush, and the second wire 131F may be an LED lamp wire of the electric ground brush. Further, the mouthpiece unit 132 includes an end cap 132B and a mouthpiece 132C, and the end cap 132B is connected to the mouthpiece 132C. The middle part of the suction nozzle 132C is provided with a vent hole, the middle part of the end cover 132B is also provided with a vent hole, the vent hole of the suction nozzle 132C is communicated with the vent hole of the end cover 132B, and when the end cover 132B is in butt joint with the suction end 131A, the vent hole of the end cover 132B can also be communicated with the first air inlet 161A of the suction end 131A of the housing 130. As shown in FIG. 11, the cyclonic separating apparatus 100 further comprises a locking unit 180 for locking the housing 130 and the suction unit 132 when the suction unit 132 is docked with the suction end 131A. The locking unit 180 also serves to unlock the mouthpiece unit 132 from the housing 130. The locking unit 180 may be a buckle-like structure.

As shown in fig. 12, the cyclone separating apparatus 100 further comprises an elastic unlocking member 190. The elastic unlocking member 190 may be a torsion spring. One end of the torsion spring is connected to the housing 130 and the other end is connected to the suction port unit 132 to spring open the housing 130 and the suction port unit 132 when the locking unit 180 unlocks the suction port unit 132 and the suction end 131A.

Fig. 13 is a schematic view of a cleaner from another perspective in an embodiment of the present application. The main unit 200 is provided with a connection shaft 202 rotatably connected to the housing 130. The connection shaft 202 is provided with a second wire passing hole 201 communicating with the inside of the host device 200. The wires enter the host device 200 through the second wire vias 201 and electrically connect the control elements within the host device 200. Referring to fig. 7, when the housing 130 is rotated to a certain angle with respect to the host device 200, the outer sidewall of the housing 130 can be abutted against the battery unit 220. That is, the battery unit 220 may limit the opening angle of the housing 130 with respect to the host device 200, preventing the wires passing through the second wire through-hole 201 from being pulled and worn too much.

Fig. 14 is a schematic structural view of a housing 130 of a host device 200 in another embodiment, and fig. 15 is a schematic structural view of a mouthpiece unit 132 mated with the housing 130 shown in fig. 14. In the embodiment shown in fig. 14 and 15, the housing 130 is provided with a first electrical connector X and the mouthpiece unit 132 is provided with a second electrical connector Y. For example, the second electrical connector Y may be provided on the end cap 132B.

In connection with the embodiment shown in fig. 11, the structure of the embodiment shown in fig. 14 is substantially the same as that of the embodiment shown in fig. 11, i.e., the rotational connection of the housing 130 and the suction opening unit 132 is achieved by the rotation shaft 133. The embodiment shown in fig. 14 is different from the embodiment shown in fig. 11 in that the structure of the embodiment shown in fig. 14 is such that the first wire passing hole 133A is not provided at the rotation shaft 133, but the electrical connection is achieved by the contact of the first electrical connector X and the second electrical connector Y.

Specifically, in the embodiment of fig. 14, the first electrical connector X and the second electrical connector Y are both metal connectors, the first electrical connector X is electrically connected to the first conductive wire 131E, and the second electrical connector Y is electrically connected to the first electrical element 132A. The position of the first electrical connector X in the embodiment shown in fig. 14 corresponds to the position of X1 in the embodiment shown in fig. 11, and the position of the second electrical connector Y in the embodiment shown in fig. 14 corresponds to the position of Y1 in the embodiment shown in fig. 11. For example, the first electrical connector X may be a blade and the second electrical connector Y may be a pin. When the mouthpiece unit 132 is covered on the housing 130, the first and second electrical connectors X and Y are brought into contact and electrically connected, and when the mouthpiece unit 132 is opened with respect to the housing 130, the first and second electrical connectors X and Y are separated.

As shown in fig. 16, fig. 16 is a partial schematic structure of the cleaner in an embodiment, showing a housing 130 and a suction port unit 132 of the cleaner, the housing 130 and the suction port unit 132 being rotatably connected by a rotation shaft 133. For example, the housing 130 of the cleaner may have a cylindrical shape, the rotation shaft 133 is provided at one end of the housing 130, and a portion of the locking unit 180 is provided at the other end of the housing 130 in a diameter direction of the cylindrical shape, that is, the locking unit 180 includes a first locking member provided at the housing, which may be one of a locking pin and a locking hole, and a second locking member provided at the suction port unit, which may be the other of the locking pin and the locking hole. That is, the locking unit may include a locking pin and a locking hole, which are locked to each other, for example, the locking pin is provided on the housing 130, the locking hole is provided on the suction port unit 132, or the locking pin is provided on the suction port unit 132, and the locking hole is provided on the housing 130. When the suction port unit 132 is covered on the suction end 131A of the housing 130, the suction port unit 132 and the housing 130 can be locked by the locking unit 180.

In the above embodiment, when the suction port unit 132 and the housing 130 are locked, the suction port unit 132 and the housing 130 are connected by the locking unit 180, and also by the rotation shaft 133. The suction port unit 132 includes an end cap 132B and a suction nozzle 132C coupled to the end cap 132B, the suction nozzle 132C being used to couple a suction attachment such as a floor brush, an acarid brush, etc., and when the suction attachment is coupled to the suction nozzle 132C, the total weight of the suction port unit 132 and the suction attachment increases. Also, since the mouthpiece unit 132 and the housing 130 are coupled only by the rotation shaft 133 and the locking unit 180, the coupling strength may be insufficient.

In order to enhance the coupling strength of the rotation shaft 133 and the locking unit 180, in one embodiment, a locking structure 400 is provided on the suction port unit 132 of the cleaner, and the locking structure 400 includes a first locking assembly 410 and a second locking assembly 420 capable of locking each other, the first locking assembly 410 being provided on the housing 130, and the second locking assembly 420 being provided on the suction port unit 132. In the embodiment shown in fig. 16, two sets of locking structures 400 are shown, each set comprising a first locking assembly 410 and a second locking assembly 420 capable of interlocking with each other. Two sets of locking structures 400 are provided in the radial direction of the cleaner housing 130.

Figure 17 is a schematic view of the structure of the mouthpiece unit of figure 16 perpendicular to the axial direction. The suction nozzle 132C is provided with a duct 132C1, when the dust collection accessory is inserted into the duct 132C1, the dust collection accessory can drive the second locking component 420 to be locked with the first locking component 410, and when the dust collection accessory is pulled out from the duct 132C1, the first locking component 410 and the second locking component 420 are unlocked. The first locking component 410 and the second locking component 420 are unlocked when the dust collection fitting is pulled out of the duct 132C1, which is also understood that the first locking component 410 and the second locking component 420 are unlocked when the dust collection fitting is pulled out of the duct 132C1, so long as the dust collection fitting is out of contact with the second locking component 420.

When the suction fitting is inserted into the duct 132C1 of the suction port unit 132, the total weight of the suction port unit 132 and the suction fitting increases.

As shown in fig. 16, a latch having elasticity is provided on the dust collection accessory, the latch having elasticity may include a latch body and a spring connecting the latch body, a receptacle is provided on an inner wall of the duct 132C1, and when the dust collection accessory is inserted into the duct 132C1 to a target position, the latch on the dust collection accessory is inserted into the receptacle on the inner wall of the duct 132C1, and at this time, the dust collection accessory is locked with the suction port unit 132. An unlocking button k is arranged on the suction port unit 132, and after the unlocking button k is pressed, the unlocking button k ejects a bolt out of an insertion hole in the inner wall of the hole channel 132C1, so that a dust collection accessory can be pulled out of the hole channel 132C 1.

Of course, in other embodiments, a pin with elasticity may be provided on the inner wall of the duct 132C1, and a socket may be provided on the dust collection accessory. The latch having elasticity may include a latch body and a spring coupled to the latch body, the middle portion of the latch body may be rotatably coupled to the suction port unit 132, and the first end of the latch body is coupled to the suction port unit 132 through the spring and the second end is extended into the duct 132C 1. When the suction fitting is inserted into the duct 132C1 to the target position, the latch body extending into the inside of the duct 132C1 is inserted into the insertion hole of the suction fitting, and at this time, the suction fitting is locked with the position of the suction port unit 132. An unlocking button k is arranged on the suction port unit 132, the unlocking button k is connected with the first end of the bolt body, after the unlocking button k is pressed, the bolt body rotates relative to the suction port unit 132, the spring is compressed, the second end is withdrawn from the jack, and at the moment, the dust collection accessory can be pulled out from the pore channel 132C 1. When the unlocking button k is not pressed, the first end extends into the inside of the duct 132C1 under the action of the spring.

When the suction fitting is inserted into the duct 132C1 of the suction port unit 132, the suction fitting drives the second locking member 420 provided on the suction port unit 132 to be locked with the first locking member 410 provided on the housing 130, thereby improving the coupling strength of the suction port unit 132 and the housing 130. When the suction fitting is pulled out of the duct 132C1 of the suction unit 132, the second locking member 420 can be unlocked from the first locking member 410, thereby facilitating the separation of the housing 130 from the suction unit 132. For example, when the cleaner is operated, dust is stored in the housing 130, and when the housing 130 is separated from the suction port unit 132, the dust in the housing 130 can be discharged, and thus, when the suction fitting is inserted into the duct 132C1 of the suction port unit 132, the housing 130 cannot be separated from the suction port unit 132 to prevent dust leakage, but when the suction fitting is pulled out from the duct 132C1 of the suction port unit 132, it is necessary to allow the housing 130 to be separated from the suction port unit 132 to be easily separated, thereby facilitating dust pouring. Therefore, the cleaner of the present embodiment has both the advantage of locking the housing 130 to be separated from the suction unit 132 when the suction attachment is inserted into the duct 132C1 of the suction unit 132 and the advantage of facilitating the separation of the housing 130 from the suction unit when the suction attachment is pulled out of the duct 132C1 of the suction unit 132.

The first locking assembly 410 is disposed on the housing 130. The first locking assembly 410 may include a slot structure, for example, the housing 130 may be provided with a slot structure, and at least a portion of the first locking assembly 420 may be inserted into the slot structure when the second locking assembly 420 is locked with the first locking assembly 410. For example, the first locking assembly 410 may include a locking ring, which may be a ring, and the second locking assembly 420 may be hooked onto the locking ring when the second locking assembly 420 is locked with the first locking assembly 410.

As shown in fig. 17, the second locking assembly 420 includes a lock pin 421 and an elastic return 422, and the elastic return 422 connects the lock pin 421 and the mouthpiece unit 132. The locking pin 421 has a driving portion 4211 and a locking portion 4212, and when the vacuum fitting is inserted into the duct 132C1, the vacuum fitting can contact and push the driving portion 4211 of the locking pin 421, thereby driving the locking pin 421 to move relative to the suction unit 132, so that the locking portion 4212 of the locking pin 421 is locked with the first locking assembly 410. When the first locking assembly 410 includes a slot structure, the locking portion 4212 may be inserted into the slot structure. The locking portion 4212 may hook the locking ring when the first locking assembly 410 includes the locking ring. When the vacuum fitting is inserted into the duct 132C1 and the lock pin 421 is pushed to move relative to the suction unit 132, the lock pin 421 compresses the elastic return member 422, and when the vacuum fitting is pulled out of the duct 132C1, particularly when the vacuum fitting is out of contact with the lock pin 421, the elastic return member 422 pushes the second locking member 420 to return, so that the second locking member 420 is unlocked from the first locking member 410.

As shown in fig. 17, a chute 132C2 is provided on the suction port unit 132, and the chute 132C2 may extend in the radial direction of the suction port unit 132. The lock pin 421 of the second locking assembly 420 is slidably coupled to the chute 132C2.

In other embodiments, lock pin 421 may also be rotatably coupled to suction unit 132. For example, the locking portion 4212 and the driving portion 4211 of the locking pin 421 are respectively provided at both ends of the rotation shaft of the locking pin 421 and the suction port unit 132, and when the vacuum cleaner is inserted into the duct 132C1, the vacuum cleaner can contact and push the driving portion 4211 of the locking pin 421 to rotate the locking pin 421 with respect to the suction port unit 132, and rotate to a state in which the locking portion 4212 is locked with the first locking assembly 410. When the suction fitting is pulled out of the duct 132C1, the elastic return 422 can drive the lock pin 421 to rotate reversely with respect to the suction port unit 132, so that the locking portion 4212 is unlocked from the first locking assembly 410.

In the embodiment shown in fig. 17, the lock pin 421 includes a driving portion 4211 and a locking portion 4212, for example, when the lock pin 421 is elongated, both ends in the longitudinal direction of the elongated lock pin 421 are the driving portion 4211 and the locking portion 4212, respectively; in another example, when the lock pin 421 has an oval shape, the drive portion 4211 and the lock portion 4212 are provided at both ends in the major axis direction of the oval shape. The driving portion 4211 is configured to extend into the duct 132C1 before the dust collection fitting is inserted into the duct 132C1. Since the elastic restoring member 422 connects the locking pin 421 and the suction port unit 132, when the suction attachment is not inserted into the duct 132C1 of the suction port unit 132, the driving portion 4211 is extended into the duct 132C1 by the elastic restoring member 422. The locking portion 4212 is adapted to lock with the first locking assembly 410 when the driving portion 4211 is pushed after the dust collection accessory is inserted into the duct 132C1. That is, when the dust collection kit is inserted into the duct 132C1 and presses the driving part 4211, the locking pin 421 can be driven to compress the elastic restoring member, and in this process, the locking part 4212 moves synchronously with the driving part 4211 and finally the locking part 4212 can be locked with the first locking assembly 410.

In one embodiment, the driving portion 4211 may not extend into the channel 132C 1. That is, the driving portion 4211 does not extend into the duct 132C1 regardless of whether the dust collection accessory extends into the duct 132C 1. Specifically, the lock pin 421 includes a driving portion 4211 and a locking portion 4212, the driving portion 4211 is accommodated in the installation groove, and since the elastic restoring member 422 connects the lock pin and the suction port unit 132, when the dust collection accessory is not inserted into the duct 132C1 of the suction port unit 132, the driving portion 4211 is also accommodated in the installation groove by the elastic restoring member 422. The driving portion 4211 being received in the mounting groove means that the driving portion 4211 does not extend into the channel 132C 1. Further, the dust collection fitting is provided with a protruding portion, for example, the dust collection fitting at least comprises a structure similar to a cylindrical tube, the protruding portion is arranged on the outer wall of the cylindrical tube, the protruding portion can have a certain elasticity, and the protruding portion is in a compressed state when the cylindrical tube is inserted into the first stage of the duct 132C 1; as the cylindrical tubular structure is further inserted into the hole 132C1 and the protrusion is moved to the position of the mounting groove, the protrusion elastically expands in the radial direction of the cylindrical tubular structure, thereby pushing the driving portion 4211 received in the mounting groove, at this time, the pushing portion can compress the elastic restoring member 422, and during this process, the locking portion 4212 moves synchronously with the driving portion 4211, and finally the locking portion 4212 can be locked with the first locking assembly 410.

In the embodiment shown in fig. 17, the number of locking structures 400 is two, and in other embodiments, the number of locking structures 400 is at least two, for example, three, four, or more. As further shown in fig. 17, at least two locking structures 400 are disposed radially of the housing 130.

As shown in fig. 17, the cleaner further includes a locking unit 180 provided between at least two locking structures 400 along the circumferential direction of the housing 130, the locking unit 180 including a first locking member provided on the housing 130 and a second locking member provided on the suction port unit 132, which can be locked and unlocked. The locking unit 180 is different from the locking structure 400 in that when the mouthpiece unit 132 and the housing 130 are aligned, i.e., the aligned state shown in fig. 13, the locking unit 180 locks the mouthpiece unit 132 and the housing 130. Further, the locking structure 400 can be activated only after the suction attachment is inserted into the duct 132C1, to further lock the suction port unit 132 and the housing 130 by the locking structure 400. The locking structure 400 can ensure that the locking strength of the suction port unit 132 and the housing 130 is enhanced after the suction fitting is inserted, and when the suction fitting is pulled out, the cleaner is not in an operating state, and only the suction port unit 132 and the housing 130 are locked by the locking unit 180.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. A vacuum cleaner, comprising:

a housing;

the suction port unit is connected with the shell and is used for sealing the shell, and a pore canal for inserting a dust collection accessory is formed in the suction port unit;

a locking unit for locking or unlocking the mouthpiece unit and the housing; and

the locking structure comprises a first locking component and a second locking component, the first locking component is arranged on the shell, the second locking component is connected with the suction port unit, the dust collection accessory is used for driving the second locking component to be locked with the first locking component after being inserted into the pore canal, and the suction port unit and the shell are locked through the locking unit; and the locking unit is unable to separate the housing from the suction unit when the suction fitting is inserted into the duct of the suction unit; after the dust collection accessory is pulled out of the pore canal, the second locking component and the first locking component can be unlocked, and the suction port unit and the shell can be unlocked through the locking unit, so that the shell and the suction port unit are separated.

2. A vacuum cleaner according to claim 1, wherein the suction opening unit is formed with a mounting groove communicating with the aperture, the second locking assembly being at least partially disposed in the mounting groove, the second locking assembly comprising a lock pin and an elastic return member connecting the lock pin and the suction opening unit, the suction fitting being adapted to urge the lock pin to compress the elastic return member after insertion into the aperture and to lock with the first locking assembly by the lock pin, the elastic return member being adapted to urge the lock pin to unlock with the first locking assembly after the suction fitting is out of contact with the lock pin.

3. The vacuum cleaner of claim 2, wherein the mounting slot is a chute, and the locking pin is slidably disposed within the chute.

4. The vacuum cleaner of claim 2, wherein the locking pin is rotatably disposed in the mounting slot.

5. The vacuum cleaner of claim 2, wherein the lock pin includes a driving portion for extending into the duct before the suction fitting is inserted into the duct, and a locking portion for locking with the first locking assembly when the driving portion is pushed after the suction fitting is inserted into the duct.

6. The vacuum cleaner of claim 2, wherein the lock pin includes a driving portion and a locking portion, the driving portion is accommodated in the mounting groove, the suction fitting is provided with a protruding portion for protruding into the mounting groove to push the driving portion after the suction fitting is inserted into the duct, and the locking portion is for locking with the first locking member when the suction fitting is pushed into the duct to push the driving portion.

7. The vacuum cleaner of claim 1, wherein the number of locking structures is at least two.

8. The vacuum cleaner of claim 7, wherein at least two of the locking structures are disposed radially of the housing.

9. The vacuum cleaner according to claim 7, wherein the locking unit is provided between at least two of the locking structures along a circumferential direction of the housing, the locking unit including a first locking member and a second locking member capable of locking and unlocking, the first locking member being provided on the housing, and the second locking member being provided on the suction port unit.

10. The vacuum cleaner of claim 1, wherein the first locking assembly includes a slot structure into which the second locking assembly is insertable when the second locking assembly is locked with the first locking assembly; or (b)

The first locking assembly includes a locking ring, and the second locking assembly is capable of hooking the locking ring when the second locking assembly is locked with the first locking assembly.