CN111820804A - Dust collection units and hand-held cleaning equipment - Google Patents

Abstract

The invention discloses a dust collecting unit and a hand-held cleaning device, comprising a filter unit and a cylindrical part for collecting garbage; the filter unit comprises a fixing frame and a filter assembly, the filter assembly is assembled on the fixing frame, and one end of the cylindrical part is open; The filter unit is integrally inserted into the inner cavity of the cylindrical part with the filter assembly facing inward, and the outer wall of the fixing frame is clamped on the inner wall of the open end of the cylindrical part; so that the filter unit can be quickly installed on the cylindrical part Inside, it is convenient for users to disassemble and assemble the dust collection unit, and just replace and clean the filter unit.

Description

Dust collection units and hand-held cleaning equipment

technical field

The present invention relates to the technical field of vacuum cleaners, and in particular, to a dust collecting unit and a filtering unit of a hand-held cleaning device.

Background technique

Handheld vacuum cleaners are used in household cleaning operations due to their small size, light overall weight, portability and ease of use.

A stick vacuum cleaner with application publication number CN102440717A, comprising a rigid rigid stick and a suction head at the end of the rigid pipe, the suction head is connected to the rigid pipe via a mechanical steering coupler for use when the rigid pipe rotates about its axis Rotate the vacuum head in a plane parallel to the ground.

The vertical electric vacuum cleaner with publication number CN1806741A has a vacuum cleaner main body with an electric blower and a dust collecting mechanism; a suction body arranged at the lower part of the above-mentioned vacuum cleaner main body; a handle arranged on the upper part of the above-mentioned vacuum cleaner main body; The front end of the suction hose is extended and the suction tube is retractable.

The filter assembly and the dust box need to be cleaned frequently, and the existing structure makes disassembly and assembly between the filter assembly and the dust box inconvenient.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a dust collecting unit that is easy to disassemble and assemble, and further to provide a hand-held cleaning device having the above-mentioned dust collecting unit.

The technical solution provided by the present invention to solve the above technical problems is as follows: a dust collection unit includes a filter unit and a cylindrical component for collecting garbage, the filter unit includes a fixing frame and a filter assembly, and the filter assembly is assembled in the On the fixing frame, one end of the cylindrical member is open, the filter unit is integrally inserted into the inner cavity of the cylindrical member with the filter assembly facing inward, and the outer wall of the fixing frame is clamped in the inner cavity of the cylindrical member. on the inner wall of the open end of the cylindrical part.

A further optimized solution of the present invention is as follows: the fixing frame includes a first annular body and a second annular body adjacent to the front and rear on the same axis, and the outer diameter of the first annular body is larger than that of the second annular body. The outer diameter of the first annular body is connected with the inner wall of the cylindrical member of the dust collecting unit, and the second annular body is detachably connected with the filter assembly.

A further optimized solution of the present invention is that: the outer wall of the first annular body is provided with a concave portion, and the inner wall of the open end of the cylindrical member is provided with a convex portion that matches the concave portion.

A further optimized solution of the present invention is that: the rear end of the cylindrical member is provided with an openable cover, and after the cover is opened, the garbage in the cylindrical member can be dumped.

A further optimized solution of the present invention is as follows: one end of the cover body is axially connected to the cylindrical member, and the other end of the cover body is provided with a detachable buckle structure.

A further optimized solution of the present invention is as follows: a second positioning structure is provided on the outer wall of the rear end of the cylinder on the same side as the buckle structure, and a second positioning structure is provided on the outer wall of the front end of the cylinder and the axial connection end of the cover on the same side There is a first positioning structure controlled by the operation button.

A further optimized solution of the present invention is as follows: the first annular body and the second annular body are both annular bodies, and the first annular body and the second annular body are integrally injection-molded.

A further optimized solution of the present invention is: a helical coupling body is arranged between the first annular body and the second annular body, the outer surface of the helical coupling body, the outer surface of the second annular body A spiral air channel is formed between the surface and the inner surface of the cylindrical member.

A further optimized solution of the present invention is: an excessive slope is provided between the outer wall of the first annular body and the outer wall of the second annular body, an air inlet is arranged on the cylindrical member, and the excessive slope is towards the stated air inlet.

Another subject of protection of the present invention is: a hand-held cleaning device, comprising the dust collecting unit.

Compared with the prior art, the advantage of the present invention is that the filter unit includes a fixed frame and a filter assembly, the filter assembly is assembled on the fixed frame, one end of the cylindrical part is open, and the filter unit is integrally inserted into the filter unit in a manner that the filter assembly faces inward. In the inner cavity of the cylindrical part, the outer wall of the fixing frame is clamped on the inner wall of the open end of the cylindrical part, so that the filter unit can be quickly installed in the cylindrical part, which is convenient for users to disassemble and assemble the dust collecting unit and filter the filter unit. Units are freshly replaced and cleaned.

Description of drawings

The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn for the purpose of explaining the preferred embodiments only and should therefore not be taken as a Limitation of the scope of the invention. Furthermore, unless otherwise indicated, the drawings are merely schematic representations of the composition or construction of the described objects and may contain exaggerated representations and are not necessarily drawn to scale.

1 is a schematic diagram 1 of a handheld cleaning device according to a preferred embodiment of the present invention;

FIG. 2 is a second schematic diagram of a handheld cleaning device according to a preferred embodiment of the present invention;

3 is a schematic diagram 3 of a handheld cleaning device according to a preferred embodiment of the present invention;

Figure 4 is an exploded view of a handheld cleaning device according to a preferred embodiment of the present invention;

5 is a schematic diagram 1 of a cleaning host according to a preferred embodiment of the present invention;

6 is a schematic diagram 2 of a cleaning host according to a preferred embodiment of the present invention;

7 is a cross-sectional view at A-A of FIG. 6 of a preferred embodiment of the present invention;

8 is an exploded view of a cleaning host according to a preferred embodiment of the present invention;

FIG. 9 is an exploded view 1 of a cleaning host according to a preferred embodiment of the present invention;

Fig. 10 is an exploded view 2 of a cleaning host according to a preferred embodiment of the present invention;

11 is a schematic diagram 1 of a dust collecting unit according to a preferred embodiment of the present invention;

12 is a second schematic diagram of a dust collecting unit according to a preferred embodiment of the present invention;

13 is an exploded view of a dust collecting unit according to a preferred embodiment of the present invention;

Figure 14 is a schematic diagram of a cylindrical member of a preferred embodiment of the present invention;

15 is a schematic diagram 1 of a filter unit according to a preferred embodiment of the present invention;

16 is a schematic diagram 2 of a filter unit according to a preferred embodiment of the present invention;

17 is a schematic diagram 3 of a filtering unit according to a preferred embodiment of the present invention;

18 is an exploded view of a filter unit according to a preferred embodiment of the present invention;

FIG. 19 is a schematic diagram of a fixing frame according to a preferred embodiment of the present invention.

Detailed ways

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are descriptive, exemplary only, and should not be construed as limiting the scope of protection of the present invention.

It should be noted that like numerals refer to like items in the following figures, so once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship, or the orientation or positional relationship that the product of the invention is usually placed in use, is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, in order to simplify the description. The specific orientation configuration and operation are therefore not to be construed as limitations of the present invention.

As shown in FIGS. 1-4 , the hand-held cleaning device includes a floor brush 100 , a rigid suction rod 200 and a cleaning host 300 . The lower end of the rigid suction rod 200 is connected to the ground brush 100 , and the upper end is connected to the cleaning host 300 . The cleaning host 300 includes a hand-held part 001, a suction unit 002 with a built-in fan 02, and a dust-collecting unit 003 with a built-in filter unit 01. The front end of the hand-held part 001 is provided with a rod-shaped part 004 that is docked with the upper end of the rigid suction rod 200. The dust-collecting unit The 003 is detachably mounted on one side of the rod-shaped member 004 and docked with the suction unit 002 fixed on the hand-held part 001 .

As shown in FIG. 4 , an air inlet K is provided on the lower surface of the floor brush 100 , an air intake channel is provided inside the floor brush 100 , and the air intake channel communicates with the dust suction channel T of the inner cavity of the rigid suction rod 200 . The other end of the dust suction channel T of the rigid suction rod 200 communicates with the first air inlet 1 of the rod-shaped component 004 .

During use, dust and impurities on the ground surface can be sucked into the floor brush 100 along with the air from the air inlet K, and be drawn upwards into the cleaning host 300 by the airflow. The dust-laden air is dedusted by the cleaning host 300 to form clean air, which is then discharged back into the atmosphere, and the dust and impurities are retained in the dust collecting unit 003 of the cleaning host 300 .

In this embodiment, the floor brush 100 is detachably sleeved on the rigid suction rod 200 by means of threads, snaps, etc., and the floor brush 100 can be used to clean objects such as bottom plates and carpets. In addition, the ground brush 100 can be removed from the lower end of the rigid suction rod 200. The rigid suction rod 200 is combined with the cleaning host 300 to form a handheld cleaning device for long-distance vacuuming. The dust-laden air is sucked from the rigid suction rod 200. The front end of channel T enters. This mode can be used to clean dust from dead corners, gaps, etc.

Of course, other cleaning heads may also be provided at the front end of the rigid suction rod 200 to achieve other functions. Of course, the ground brush 100 can also be permanently fixed on the front end of the rigid suction rod 200 .

Further, the rigid suction rod 200 is detachably sleeved on the front end of the rod-shaped member 004. By removing the rigid suction rod 200, the cleaning host 300 can be used as an independent component for vacuuming, and each part including the floor brush 100 can be used for vacuuming. The cleaning head can also be directly connected with the rod-shaped part 004, so as to realize a short-distance cleaning mode and improve the convenience and flexibility of the hand-held cleaning device.

As shown in FIG. 5 , in this embodiment, a rod-shaped member 004 extending linearly is provided at the front end of the hand-held portion 001 , and the dust collecting unit 003 is detachably mounted on one side of the rod-shaped member 004 and fixed to the hand-held portion 001 The suction unit 002 on the top is docked. This connection method makes the structure of the cleaning device simpler, facilitates the disassembly and installation of the dust collecting unit 003, not only reduces the production cost, but also further improves the convenience of use of the cleaning device.

As shown in Figures 5 and 6, preferably, a switch D for controlling the fan is provided on the upper surface of the junction between the rod-shaped member 004 and the hand-held portion 001, so that when the user holds the hand-held cleaning device with one hand, the thumb can Press the switch D to realize the control while cleaning, which makes the operation more convenient and easy, and the experience is better. In addition, preferably, a power cord C is provided on the rear side of the air suction unit.

As shown in FIGS. 7-10 , the front end of the rod-shaped member 004 is provided with a first air inlet 1 , the inner portion of the rod-shaped member 004 is provided with a first air outlet 2 , and the rod-shaped member 004 is hollow to form a linear air duct Z.

As shown in Figures 8-10 and 15, the dust collecting unit 003 includes a cylindrical part 04, a filter unit 01, a second air inlet 3 and a second air outlet 4, and the filter unit 01 includes a filter assembly 011, which is located in the cylindrical part 04 Inside, and on the airflow path between the second air inlet 3 and the second air outlet 4, a dust collecting air duct is formed between the second air inlet 3 and the second air outlet 4. The second air inlet 3 is provided on the peripheral side wall of the cylindrical member 04 , the second air outlet 4 is located at the rear end of the cylindrical member 04 , and the first air outlet 2 is connected to the second air inlet 3 .

As shown in Figures 8-10, the air suction unit 002 includes a casing 03, a fan 02 built in the casing 03, a third air inlet 5 at the front end of the casing 03, and a third air outlet 6 at the rear end of the casing 03. The air inlet 5 and the third air outlet 6 form an air suction duct L, and the second air outlet 4 is connected to the third air inlet 5 .

Preferably, the third air inlet 5 is arranged on the front end surface F1 of the housing 03, and the front end surface F1 is perpendicular to the extending direction of the rigid suction rod 200, and the third air outlet 6 is arranged on the lower end of the housing 03. Therefore, the first The air suction duct L between the three air inlets 5 and the third air outlet 6 is curved. In this way, the air blown from the air suction unit 002 is prevented from being directed to the user, so that the comfort of using the device is improved, and the noise of the device is also reduced.

To sum up, as shown in FIG. 7 , the air duct structure of the handheld cleaning device provided in this embodiment is formed between the first air inlet 1 and the third air outlet 6 . When the hand-held cleaning device is working, the fan 02 operates so that the suction channel T (in the rigid suction rod), the linear air duct Z, and the dust collecting air duct in front of it generate negative pressure to generate suction, which will remove dust or foreign matter. The air is inhaled from the dust suction channel T, filtered by the filter unit 01 in the dust collection unit 003, and the dust and impurities are concentrated in the cylindrical member 04, and the purified air passes through the fan 02 and passes through the suction air duct L. Air outlet 6 is discharged.

In this embodiment, the air containing dust or foreign matter enters from the linear air duct Z, and enters the dust collecting unit 003 after turning, and a part of the dust or foreign matter with a larger particle size is blocked by the rear end of the linear air duct Z , reduces the flow speed and is deposited near the connection between the first air outlet 2 and the second air inlet 3, preventing large particles of dust from being directly thrown to the filter unit 01, resulting in a large filter load of the filter unit 01, and preventing the surface of the filter screen from being occupied by dust The problem occurs, reducing the overall airflow resistance of the air duct and improving the ventilation efficiency of the fan 02.

As shown in Figures 7 and 16, further, the dust collecting air duct is provided with an inclined surface 21 and an arc surface 22 that are butted with the second air inlet 3. The inclined surface 21 and the arc surface 22 form a rotating air duct inside the dust collecting unit 003. . The air entering the cylindrical member 04 is guided by the inclined surface 21 and the arc surface 22 , flows annularly along the interior of the cylindrical member 04 and enters the filter unit 01 .

As shown in Figures 8 and 13, preferably, a first annular seal X2 is provided around the first air outlet 2, and a first annular protrusion is provided on the edge of the second air inlet 3 of the dust collecting unit 003. The protrusion abuts on the first annular seal X2 to seal the abutment.

A second annular seal X1 is provided around the third air inlet 5, and a second annular protrusion is provided on the edge of the second air outlet 4 of the dust collecting unit 003, and the second annular protrusion is fixed on the second annular seal X1 a seal the pair of ports. Through two sealing measures, the air tightness of the air duct structure is enhanced, the wind loss is reduced, and the dust suction effect of the equipment is enhanced.

As shown in FIG. 5, as a specific implementation of the hand-held part 001, in this embodiment, the hand-held part 001 includes a first knob part 11 and a second knob part 12, and the first knob part 11 is located on the rigid suction rod In the extension direction of the rear portion of the 200, the second knob portion 12 and the first knob portion 11 form an acute angle, and a connecting portion 13 is provided between the front end of the first knob portion 11 and the lower end of the second knob portion 12, The first handle portion 11 , the second handle portion 12 and the coupling portion 13 form a hollow triangle area in the middle. The triangular handle 001 structure makes the center of gravity of the device close to the user, so that the user can operate more easily and conveniently.

Preferably, the upper side of the housing 03 of the air suction unit 002 is fixed to the extension of the front end of the first handle portion 11 , and the rear side of the housing 03 of the air suction unit 002 is integrally formed with the coupling portion 13 . Therefore, the structure of the device is more compact, the appearance is more beautiful, and the center of gravity of the device is further closer to the user.

The assembly structure of the dust collecting unit 003 on the cleaning host 300 will be described in detail below with reference to FIGS. 9-10 , so that those skilled in the art can more clearly understand the implementation of this embodiment.

A first positioning structure is provided between the dust collecting unit 003 and the rod-shaped member 004 , and a second positioning structure is provided between the dust collecting unit 003 and the air suction unit 002 . The dust collecting unit 003 is detachably mounted on one side of the rod-shaped member 004 and docks with the suction unit 002 fixed on the hand-held part 001 . The first positioning structure and the second positioning structure are snap-fit structures.

Specifically, as shown in FIGS. 9-10 , the first positioning structure is located on the upper surface of the front end of the dust collecting unit 003 and the lower surface of the rod-shaped member 004 . It includes a lock tongue 7 located on the dust collecting unit 003 and a lock slot 8 located on the rod-shaped member 004. The lock tongue 7 is controlled by the operation button P to extend into or out of the lock slot 8, and the operation button P is located at the front end of the dust collection unit 003. face. When the dust collecting unit 003 is assembled on the rod-shaped member 004, when the operation button P is pressed, the lock tongue 7 can be displaced away from the lock groove 8, so that the dust-collecting unit 003 and the rod-shaped member 004 can be unlocked and disengaged from each other. When the user releases the operation button P, the lock tongue 7 moves into the lock slot 8 to lock the dust collecting unit 003 and the rod-shaped member 004, so that the dust-collecting unit 003 and the rod-shaped member 004 are connected.

Moreover, as shown in FIGS. 9-10 , the second positioning structure is located on the lower surface of the rear end of the dust collecting unit 003 and the lower surface of the front end of the air suction unit. It includes a hook hole 9 on the dust collecting unit 003 and a hook 10 on the suction unit. The hook hole 9 hooks the hook 10 to connect the dust collecting unit 003 with the suction unit 002 . That is, the first positioning structure and the second positioning structure are located on both sides of the cylindrical member 04 .

When the user assembles the dust collecting unit 003, the user first combines the second positioning structures with each other, that is, aligns the hook portion 10 with the hook hole 9, and hooks the hook hole 9 to the hook portion 10, so that the dust collecting unit 003 and the suction air are connected to each other. The unit 002 is connected; then press the operation button P to compress the lock tongue 7 and place the dust collecting unit 003 in place; finally release the operation button P, the lock tongue 7 moves into the lock slot 8, and the dust collecting unit 003 is connected to the rod The rod-shaped members 004 are locked between them, so that the dust collecting unit 003 is connected with the rod-shaped members 004 . Therefore, the dust collecting unit 003 is firmly and reliably connected to the cleaning host 300 by using two connection points.

Preferably, in order to further ensure the accuracy of positioning and improve the lateral connection strength between the dust collecting unit 003 and the rod-shaped member, a third positioning structure is further provided behind the first positioning structure, which includes a third positioning structure located under the rod-shaped member The insert 14 on the surface, and the insertion hole 15 located on the upper surface of the cylindrical member 04 of the dust collecting unit 003, the insert 14 is inserted into the insertion hole 15 to realize the third positioning protection.

As shown in FIG. 9, more preferably, the lower surface of the rod-shaped member 004 is provided with a recessed area 16, the first air outlet 2 is located in the recessed area 16, and the upper part of the peripheral side of the cylindrical member 04 is fitted in the recessed area within 16. The concave area 16 accommodates the dust collecting unit 003 therein, which not only makes the structure compact and the appearance neat and beautiful, but also supports the dust collecting unit 003 and improves the stability of the connection. Preferably, the upper surface of the cylindrical member 04 is a planar structure matching the recessed area 16 .

The specific structure of the dust collecting unit 003 in this embodiment will be further described below with reference to FIGS. 11-19 .

As can be seen from the above description, as shown in FIG. 13 , the dust collecting unit 003 includes a filter unit 01 and a cylindrical member 04 for collecting garbage. Further, the filter unit 01 includes a fixing frame 012 and a filter assembly 011, the filter assembly 011 is assembled on the fixing frame 012, the rear end of the cylindrical part 04 is open, and the filter unit 01 is integrally inserted into the filter unit 011 inwardly. In the inner cavity of the cylindrical member 04 , the outer wall of the fixing frame 012 is clamped on the inner wall of the open end of the cylindrical member 04 , so that the fixing frame 012 is removably installed in the rear cavity of the cylindrical member 04 .

As shown in FIGS. 7 and 12 , the center of the fixing frame 012 has a through hole N, and the air outlet of the filter assembly 011 is connected to the through hole N. The through hole N is opposite to the third air inlet 5 of the air suction unit 002 . Therefore, the inlets of the exhaust air duct and the suction air duct are located on the same straight line, thereby reducing wind resistance, ensuring smooth airflow, reducing the loss of negative pressure suction during the conduction process, and improving the dust-absorbing ability of the equipment.

In addition, a handle portion 06 is provided in the inner hole of the fixing frame 012 , and the handle portion 06 is used to separate the filter unit 01 from the cylindrical member 04 .

As shown in FIG. 19 , the fixing frame 012 includes a first annular body 101 and a second annular body 102 adjacent to the front and rear on the same axis. The outer diameter of the first annular body 101 is larger than the outer diameter of the second annular body 102 . An annular body 101 is used for connecting with the inner wall of the cylindrical member 04 of the dust collecting unit 003 , and the second annular body 102 is detachably connected with the filter assembly 011 . Through the arrangement of the fixing frame, the filter unit can be quickly detachably installed on the dust collecting unit, which is convenient for cleaning the dust collecting unit, and the filter assembly can be detachably installed on the fixing frame, which further facilitates the replacement and cleaning of the filter assembly.

Preferably, the first annular body 101 and the second annular body 102 are both annular bodies, and the first annular body 101 and the second annular body 102 are integrally injection-molded.

As shown in FIG. 9 , further preferably, the inclined surface 21 and the arc surface 22 of the second air inlet 3 in the dust collecting air duct are arranged on the fixing frame 012 . The inclined surface 21 butted against the second air inlet 3 is a transitional inclined surface 21 between the outer wall of the first annular body 101 and the outer wall of the second annular body 102 . The arc surface 22 refers to the outer surface of the second annular body 102 .

In addition, a spiral coupling body 103 is provided between the first annular body 101 and the second annular body 102 , and between the outer surface of the spiral coupling body 103 , the outer surface of the second annular body 102 and the inner surface of the cylindrical member 04 form a spiral duct.

Therefore, the airflow entering the second air inlet 3 is guided by the transition slope 21, and enters the interior of the cylindrical member 04 along the tangential direction of the cylindrical member 04, and the air entering the dust collecting unit 003 spirally approaches the suction unit along the spiral air duct. flow in the direction of 002. Such an arrangement not only increases the contact area between the air and the filter assembly 011, making the air intake effect better, but also prevents the dust-laden air from directly opposing the filter screen 105 of the filter assembly 011 and prevents the surface of the filter screen from being occupied by dust. The setting also reduces noise.

As shown in FIGS. 14-16 , preferably, the outer surface of the first annular body 101 is provided with a positioning structure, and the positioning structure is used to butt against the inner wall of the open end of the cylindrical member 04 of the dust collecting unit 003 . The positioning structure specifically refers to the concave portion 17 on the outer wall of the first annular body 101 and the convex portion 18 on the inner wall of the open end of the cylindrical member 04 that matches the concave portion 17 . When the convex portion 18 fits into the concave portion 17 , precise positioning is achieved between the fixing frame 012 and the cylindrical member 04 , and the inclined surface on the fixing frame 012 is just facing the second air inlet 3 .

As shown in FIG. 18 , preferably, the filter assembly 011 includes an inner filter Hypa 104 and an outer metal filter 105 , and the outer metal filter 105 is set outside the inner filter Hypa 104 and the two are separable.

In addition, the outer metal filter mesh 105 includes a cylindrical plastic support 105a and a metal mesh 105b arranged on the cylindrical plastic support 105a, and a rotating snap structure is provided between the cylindrical plastic and the second annular body 102 to allow the filter The assembly 011 is mounted on the fixing frame 012 .

As shown in Figures 11-13, further preferably, the front end of the dust collecting unit 003 is provided with an openable cover 05. When the cover 05 is opened, it is used to dump the garbage in the cylindrical member 04. The cover 05 and the cylindrical member There is a third annular seal X3 therebetween.

One end of the cover body 05 is axially connected to the cylindrical member 04, and the other end of the cover body 05 is provided with a detachable buckle structure. The buckle structure is arranged on the outer wall of the cylindrical member 04 on the same side as the second positioning structure, and the axial connection end of the cover body 05 is on the same side as the locking tongue 7 controlled by the operation button.

The dust collecting unit and the hand-held cleaning device provided by the present invention have been introduced in detail above. The principles and implementations of the present invention are described with specific examples in this paper. main idea. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (10)

1. The dust collecting unit is characterized in that it includes a filter unit and a cylindrical part for collecting garbage, the filter unit includes a fixed frame and a filter assembly, and the filter assembly is assembled on the fixed frame, and the One end of the cylindrical member is open, the filter unit is integrally inserted into the inner cavity of the cylindrical member with the filter assembly facing inward, and the outer wall of the fixing frame is clamped in the opening of the cylindrical member. end wall. 2 . The dust collecting unit according to claim 1 , wherein the fixing frame comprises a first annular body and a second annular body adjacent to the front and rear on the same axis, and the outer part of the first annular body is 2. 3 . The diameter is larger than the outer diameter of the second annular body, the outer wall of the first annular body is connected with the inner wall of the cylindrical part of the dust collecting unit, and the second annular body is detachably connected with the filter assembly. 3 . The dust collecting unit according to claim 2 , wherein the outer wall of the first annular body is provided with a concave portion, and the inner wall of the open end of the cylindrical member is provided with a concave portion that fits with the concave portion. 4 . of the bulge. 4. The dust collecting unit according to claim 1, wherein the rear end of the cylindrical member is provided with an openable cover, after the cover is opened, the garbage in the cylindrical member can be dumped . 5 . The dust collecting unit according to claim 4 , wherein one end of the cover body is axially connected to the cylindrical member, and the other end of the cover body is provided with a detachable buckle structure. 6 . 6 . The dust collecting unit according to claim 5 , wherein a second positioning structure is provided on the outer wall of the rear end of the cylinder body on the same side as the buckle structure, and the front end of the cylinder body is axially connected with the cover body. 7 . The outer wall on the same side of the end is provided with a first positioning structure controlled by the operation button. 7 . The dust collecting unit according to claim 2 , wherein the first annular body and the second annular body are both annular bodies, and the first annular body and the second annular body are integrally injection-molded. 8 . The dust collecting unit according to claim 2 , wherein a spiral coupling body is arranged between the first annular body and the second annular body, and the outer surface of the spiral coupling body, the outer surface of the spiral coupling body, the A spiral air channel is formed between the outer surface of the second annular body and the inner surface of the cylindrical member. 9 . The dust collecting unit according to claim 7 , wherein an excessive slope is arranged between the outer wall of the first annular body and the outer wall of the second annular body, and an air inlet is arranged on the cylindrical body part. 10 . , the excessive slope is facing the air inlet. 10. Hand-held cleaning equipment, characterized by comprising the dust collecting unit according to any one of claims 1-9.

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