Wet and dry dual-purpose handheld dust collector

Abstract

The invention relates to the technical field of cleaning equipment, in particular to a wet and dry dual-purpose handheld dust collector which comprises a shell, a first filtering assembly, a dust collecting box, a vacuum generator and a sewage collecting mechanism, the dust collecting box is provided with a containing cavity, the shell is connected to the dust collecting box and covers a cavity opening of the containing cavity, the shell is provided with a mounting cavity, and an air inlet is formed in the cavity wall of the mounting cavity; the air inlet is communicated with the containing cavity, an air outlet is formed in the cavity wall of the containing cavity, the vacuum generator is embedded in the mounting cavity, the first filtering assembly is embedded in the containing cavity, the first filtering assembly is connected to the shell and covers the air inlet, a dust suction opening is formed in the cavity wall of the side, away from the shell, of the containing cavity, and the sewage collecting mechanism is connected to the dust collecting box and covers the dust suction opening. When liquid substances need to be treated, the sewage collecting mechanism is connected to the dust collecting box and used for storing the liquid in the sewage collecting mechanism, the possibility that the liquid enters the mounting cavity and damages the vacuum generator is reduced, the dust collector has the capacity of treating the liquid substances, and the application range of the dust collector is widened.

Description

Technical Field

[0001] This application relates to the technical field of cleaning equipment, and in particular to a wet-dry dual-use handheld vacuum cleaner. Background Art

[0002] Existing handheld vacuum cleaners are usually equipped with a dust collection box to collect the inhaled dust. However, when faced with water stains or other liquid substances on the tabletop, these devices are not only ineffective but may even cause problems such as motor damage. Another common method is to design a machine specifically for water absorption, but this undoubtedly increases the cost and occupies more storage space. Defects of the prior art: Traditional handheld vacuum cleaners do not have the ability to handle solid particles and liquid substances simultaneously, which limits their scope of application; in addition, purchasing a dedicated device separately also brings an additional burden to users. Summary of the Invention

[0003] In order to enable the vacuum cleaner to have the ability to handle liquid substances and improve the scope of application of the vacuum cleaner, this application provides a wet-dry dual-use handheld vacuum cleaner.

[0004] The wet-dry dual-use handheld vacuum cleaner provided by this application adopts the following technical solutions: A wet-dry dual-use handheld vacuum cleaner includes a housing, a first filter assembly, a dust collection box, a vacuum generator, and a sewage collection mechanism. One end of the dust collection box is provided with a receiving cavity. The housing is connected to the dust collection box and covers the opening of the receiving cavity. The housing is provided with an installation cavity. An air inlet is provided on the cavity wall of the installation cavity close to the dust collection box. The air inlet is communicated with the receiving cavity. An air outlet is provided on the cavity wall of the receiving cavity. The air outlet is communicated with the outside. The vacuum generator is embedded in the installation cavity. The first filter assembly is embedded in the receiving cavity. The first filter assembly is connected to the housing and covers the air inlet. A dust suction port is provided on the cavity wall of the receiving cavity far from the housing. The dust suction port is communicated with the outside. The sewage collection mechanism is connected to the dust collection box and covers the dust suction port.

[0005] By adopting the above technical solutions, when it is necessary to handle liquid substances, the sewage collection mechanism is connected to the dust collection box to store the liquid in the sewage collection mechanism, reducing the possibility of the liquid entering the installation cavity and damaging the vacuum generator, enabling the vacuum cleaner to have the ability to handle liquid substances and improving the scope of application of the vacuum cleaner.

[0006] Preferably, it further includes a second filtering component. The sewage collection mechanism includes a sewage tank, a cover plate and a partition plate. A cavity is provided at the upper end of the sewage tank. The cover plate is connected to the sewage tank and covers the orifice of the cavity. The partition plate is embedded in the cavity. The partition plate divides the cavity into a liquid storage cavity and a dust removal cavity. The dust removal cavity is located above the liquid storage cavity. The partition plate is provided with filter holes which communicate the liquid storage cavity and the dust removal cavity. The second filtering component is embedded in the dust removal cavity and covers the filter holes. A feed port is provided at the wall of the liquid storage cavity, and the feed port communicates with the outside. A connecting block is connected to one side of the sewage tank away from the feed port. The connecting block is used to be embedded in the dust suction port. An outlet is provided at one end of the connecting block away from the sewage tank, and the outlet communicates the dust removal cavity and the outside.

[0007] By adopting the above technical solution, when processing liquid substances, the connecting block is embedded in the dust suction port so that the outlet communicates with the dust suction port. When the liquid substance enters the liquid storage cavity from the feed port, the space in the liquid storage cavity is relatively large, making the pressure in the liquid storage cavity less than the pressure in the feed port. The liquid substance falls to the bottom of the liquid storage cavity under the action of gravity in the liquid storage cavity, so that the liquid substance will not enter the accommodation cavity from the outlet after passing through the second filtering component along with the air flow, reducing the possibility of the liquid substance entering the installation cavity and damaging the vacuum generator, and improving the service life of the vacuum cleaner. The cover plate covers the orifice of the cavity, which is convenient for opening the cover plate and removing the partition plate and the second filtering component to clean the impurities in the cavity.

[0008] Preferably, the sewage collection mechanism further includes a floating plate, a closing plate and a fourth resetting member. The upper end of the closing plate is slidably embedded in the feed port. The sliding direction of the closing plate is vertical. The closing plate is used to open and close the feed port. The fourth resetting member is connected between the closing plate and the sewage tank. The fourth resetting member makes the closing plate tend to move away from the feed port. The floating plate is slidably embedded in the storage cavity. The sliding direction of the floating plate is parallel to the sliding direction of the closing plate. The floating plate is used to abut against the lower end of the closing plate.

[0009] By adopting the above technical solution, when the liquid level in the liquid storage cavity rises, it pushes the floating plate to move upward. The floating plate moves upward and abuts against the closing plate, pushing the closing plate to move upward. When the liquid level in the liquid storage cavity reaches a certain height, the closing plate closes the feed port, preventing external substances from entering the liquid storage cavity, reducing the possibility of the liquid level in the liquid storage cavity being too high and the liquid passing through the filter holes and the second filtering component and entering the dust removal cavity, and improving the safety of the equipment.

[0010] Preferably, a positioning ring is connected to the cavity wall. The surface of the partition plate away from the cover plate abuts against the positioning ring. A boss is connected to the side of the partition plate close to the liquid storage cavity. A groove is provided on the other side of the partition plate. The filter holes are located on the groove wall of the groove away from the feed port. The second filtering component includes a first connecting seat, a second connecting seat and a filter paper. The filter paper is conical, and the cross section of the filter paper is gear-shaped. The large-diameter end of the filter paper is connected to the first connecting seat, and the other end of the filter paper is connected to the second connecting seat. A butting column is connected to the side of the cover plate close to the dust outlet cavity, and the butting column abuts against one end of the first connecting seat close to the cover plate.

[0011] By adopting the above technical solution, the partition plate abuts against the positioning ring, the first connecting seat is embedded in the groove, and the butting column abuts against the first connecting seat, realizing the relative fixation of the partition plate, the second filtering component, the sewage tank and the cover plate along the axis direction of the cover plate, reducing the possibility of relative sliding of the partition plate, the second filtering component, the sewage tank and the cover plate during the upward movement, and improving the connection stability between the partition plate, the second filtering component, the sewage tank and the cover plate.

[0012] Preferably, the sewage collection mechanism further includes a scraping component. The scraping component includes a scraping block, a lead screw, an impeller and a transmission component. The scraping block is slidably embedded in the receiving groove outside the filter paper. The side wall of the scraping block is attached to the outer wall of the filter paper. The lead screw is rotatably connected to the partition plate, and the lead screw is threadedly connected to the scraping block. The impeller is rotatably connected to the partition plate, and the impeller is aligned with the discharge port. The transmission component is connected between the lead screw and the impeller.

[0013] By adopting the above technical solution, the air flow passes through the discharge port, causing the impeller to rotate. Through the transmission component, the lead screw rotates. The lead screw is threadedly connected to the scraping block, causing the scraping block to slide, and scraping off the impurities in the receiving groove on the outer periphery of the filter paper, ensuring the filtering effect of the second filtering component.

[0014] Preferably, a driving assembly is further included. The driving assembly includes a gear, a rack, a first reset member, a ratchet wheel, a pawl, a second reset member, a first driving pulley, a first driven pulley, a first belt, a first driving bevel gear, and a first driven bevel gear. The rack is slidably connected to the partition board. One end of the rack is used for abutting against the scraping block. The first reset member is connected between the rack and the partition board. The first reset member makes the rack tend to approach the scraping block. The gear is rotatably connected to the partition board. The gear meshes with the rack. The ratchet wheel is coaxially connected to the gear. The first driving pulley is rotatably connected to the partition board. The rotation axis of the first driving pulley coincides with the rotation axis of the ratchet wheel. One end of the pawl is rotatably connected to the first driving pulley. The other end of the pawl is used for meshing with the ratchet wheel. The second reset member is connected between the pawl and the first driving pulley. The second reset member makes the pawl tend to mesh with the ratchet wheel. The first driven pulley is rotatably connected to the partition board. The first belt is sleeved on the outer peripheries of the first driven pulley and the first driving pulley. The first driving bevel gear is coaxially connected to the first driven pulley. The first driven bevel gear is connected to the second connecting seat. The axis of the first driven bevel gear coincides with the axis of the filter paper. The first driven bevel gear meshes with the first driving bevel gear.

[0015] By adopting the above technical solution, the scraping block slides and abuts against the rack, pushing the rack to slide against the elastic force of the first reset member, driving the gear to rotate, driving the ratchet wheel to rotate, the ratchet wheel meshes with the pawl, driving the first driving pulley to rotate, driving the first driven pulley to rotate through the first belt, driving the first driving bevel gear to rotate, driving the first driven bevel gear to rotate, driving the second connecting seat to rotate, driving the filter paper to rotate, so that another receiving groove faces the scraping block. The scraping block slides away from the rack, and the rack slides under the action of the elastic force of the first reset member, driving the gear to rotate, driving the ratchet wheel to rotate, and the ratchet wheel pushes the pawl to disengage from the ratchet wheel against the elastic force of the second reset member, so that the filter paper does not rotate when the rack returns to its position, realizing automatic cleaning of each circumferential receiving groove of the filter paper and ensuring the filtering effect of the second filtering assembly.

[0016] Preferably, a connecting pipe and a brush are further included. One end of the connecting pipe is used for being embedded into the dust suction port or the feeding port. The brush is slidably connected to the outer periphery of the connecting pipe.

[0017] By adopting the above technical solution, it adapts to the cleaning requirements of different scene vacuum cleaners and improves the applicable range of the vacuum cleaner.

[0018] Preferably, a baffle and a third reset member are further included. The baffle is embedded in the receiving cavity. The third reset member is connected between the dust collection box and the baffle. The third reset member makes the baffle tend to cover the dust suction port.

[0019] By adopting the above technical solution, when the vacuum cleaner is not in use, the baffle covers the dust suction port under the elastic force of the third resetting member, preventing external substances from entering the accommodating cavity through the dust suction port, contaminating the first filter assembly, and prolonging the service life of the first filter assembly.

[0020] Preferably, it further includes a filter cartridge sleeved on the outer periphery of the first filter assembly. A through groove is provided on the outer wall of the upper side of the filter cartridge, and the through groove communicates with both the inside and outside of the filter cartridge. The first filter assembly includes a first connecting seat, a second connecting seat, and filter paper. The first connecting seat is connected to the housing.

[0021] By adopting the above technical solution, the filter cartridge is sleeved on the outer periphery of the first filter assembly. After external substances enter the accommodating cavity from the dust suction port, the filter cartridge plays a blocking role, reducing the possibility of the first filter assembly being blocked by impurities and improving the reliability of the vacuum cleaner.

[0022] Preferably, the first connecting seat is rotatably embedded in the filter cartridge. The first connecting seat is connected to the vacuum generator, and the rotation axis of the first connecting seat coincides with the axis of the motor output shaft in the vacuum generator.

[0023] By adopting the above technical solution, the output shaft of the motor in the vacuum generator is coaxially connected to the first connecting seat, driving the first connecting seat to rotate, driving the filter paper to rotate, so that the accommodating grooves on the outer periphery of the filter paper are respectively aligned with the through grooves, enabling impurities to evenly enter each accommodating groove and reducing the possibility of the first filter assembly being blocked.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. When liquid substances need to be processed, the sewage collection mechanism is connected to the dust collection box to store the liquid in the sewage collection mechanism, reducing the possibility of the liquid entering the installation cavity and damaging the vacuum generator, enabling the vacuum cleaner to have the ability to process liquid substances and expanding the application range of the vacuum cleaner; 2. The air flow passes through the discharge port to make the impeller rotate, and through the transmission component, the lead screw rotates. The lead screw is threadedly connected to the scraping block, causing the scraping block to slide and scrape off the impurities in the accommodating grooves on the outer periphery of the filter paper, ensuring the filtering effect of the second filter assembly; 3. The scraping block slides against the rack, pushing the rack to slide against the elastic force of the first resetting member, driving the gear to rotate, driving the ratchet to rotate. The ratchet engages with the pawl, driving the first driving pulley to rotate. Through the first belt, the first driven pulley is driven to rotate, driving the first driving bevel gear to be active, driving the first driven bevel gear to rotate, driving the second connecting seat to rotate, driving the filter paper to rotate, so that another receiving groove faces the scraping block. The scraping block slides away from the rack, and the rack slides under the action of the elastic force of the first resetting member, driving the gear to rotate, driving the ratchet to rotate. The ratchet pushes the pawl to disengage from the ratchet against the elastic force of the second resetting member, so that the filter paper does not rotate when the rack returns to its position, realizing automatic cleaning of each circumferential receiving groove of the filter paper and ensuring the filtering effect of the second filtering component. Description of the Drawings

[0025] Figure 1 It is a cross-sectional view of a wet and dry dual-purpose handheld vacuum cleaner.

[0026] Figure 2 It is an exploded structural schematic diagram of the vacuum cleaner body and the first filtering component.

[0027] Figure 3 It is Figure 1 The enlarged view of part A in

[0028] Figure 4 It is an exploded structural schematic diagram of the vacuum cleaner body and the first filtering component from another perspective.

[0029] Figure 5 It is an exploded structural schematic diagram of the filter cartridge and the first filtering component.

[0030] Figure 6 It is Figure 1 The enlarged view of part B in

[0031] Figure 7 It is a cross-sectional view of the sewage collection mechanism and the second filtering component.

[0032] Figure 8 It is Figure 7 The enlarged view of part C in

[0033] Figure 9 It is an exploded structural schematic diagram of the partition board, the scraping component, the driving component and the second filtering component.

[0034] Description of the Reference Numerals: 1. Vacuum cleaner body; 11. Housing; 111. Main body; 1111. Installation cavity; 1112. Air inlet; 1113. Air outlet; 1114. First annular groove; 1115. First limiting strip; 11151. First chamfer; 11152. First clamping groove; 1116. First abutting strip; 1117. Ridge; 11171. Vertical strip; 11172. Horizontal strip; 11173. Third fillet; 112. Handle; 113. Left housing; 114. Right housing; 12. Dust collection box; 121. Accommodation cavity; 122. Dust suction port; 123. First embedding groove; 124. First limiting groove; 125. First clamping block; 1251. First fillet; 126. Third limiting groove; 127. Dust suction pipe; 128. Guide post; 129. Stop ring; 13. Vacuum generator; 14. Baffle; 141. Guide hole; 15. Third reset part; 16. Filter cartridge; 161. Through groove; 162. Second embedding groove; 163. Second limiting groove; 164. Second clamping block; 1641. Second fillet; 2. Sewage collection mechanism; 21. Sewage tank; 211. Cavity; 2111. Liquid storage cavity; 2112. Dust outlet cavity; 212. Feed inlet; 213. Connecting block; 214. Discharge outlet; 215. Positioning ring; 2151. Positioning groove; 216. Third annular groove; 217. Third clamping groove; 218. Feed pipe; 219. Communication groove; 210. First sliding groove; 22. Cover plate; 221. Abutting column; 222. Connecting strip; 223. Third clamping block; 2231. Third chamfer; 23. Partition board; 231. Filter hole; 232. Convex platform; 233. Groove; 234. Positioning block; 235. Fifth limiting groove; 236. Rotation cavity; 237. Limiting seat; 2371. Sliding cavity; 238. First communication hole; 239. Second communication hole; 24. Floating plate; 241. Second slider; 25. Sealing plate; 251. First slider; 26. Fourth reset part; 27. Scraping component; 271. Scraping block; 272. Screw rod; 273. Impeller; 274. Transmission component; 2741. Second driving bevel gear; 2742. Second driven bevel gear; 2743. Second driving pulley; 2744. Second driven pulley; 2745. Second belt body; 2746. Third driving pulley; 2747. Third driven pulley; 2748. Third belt body; 28. Driving component; 281. Gear; 282. Rack; 283. First reset part; 284. Ratchet; 285. Pawl; 286. Second reset part; 287. First driving pulley; 288. First driven pulley; 289. First belt body; 2810. First driving bevel gear; 2811. First driven bevel gear; 28111. Second limiting hole; 29. First sealing ring; 3. Filter mechanism; 31. First filter component; 32. Second filter component; 33. First connecting seat; 331. First installation groove; 332. Limiting ring; 333. Transmission seat; 3331. First limiting hole; 34. Second connecting seat; 341. Connecting plate; 342. Bump; 343. Transmission column; 35. Filter paper; 36. Fixed seat; 361. Limiting block; 362. Rotating groove; 363. Fourth limiting groove; 364. Second annular groove; 365. Second limiting strip; 3651. Second chamfer; 3652. Second clamping groove; 366. Second abutting strip; 4. Connecting pipe; 5. Brush. Specific embodiments

[0035] The present application will be further described in detail below with reference to the accompanying drawings.

[0036] Refer to Figure 1 , an embodiment of the present application discloses a wet and dry dual-purpose handheld vacuum cleaner, which includes a vacuum cleaner body 1. The vacuum cleaner body 1 includes a housing 11 and a vacuum generator 13. The housing 11 includes a main body 111 and a handle 112. The main body 111 is provided with an installation cavity 1111. The vacuum generator 13 is embedded in the installation cavity 1111. One side of the installation cavity 1111 along the axis direction of the main body 111 is coaxially provided with an air outlet 1113, and the air outlets 1113 are all communicated with the outside. The upper end of the handle 112 is fixedly connected to the outer wall of the main body 111. The lower end of the handle 112 is inclined towards the direction close to the air outlet 1113.

[0037] Refer to Figure 2 , in this embodiment, the housing 11 includes a left housing 113 and a right housing 114. The left housing 113 and the right housing 114 are spliced to form the entire housing 11.

[0038] Refer to Figure 1 and Figure 2 , the vacuum cleaner body 1 further includes a dust collection box 12. One end of the dust collection box 12 close to the main body 111 is provided with a receiving cavity 121. One end of the main body 111 away from the air outlet 1113 is coaxially connected to the main body 111 and covers the opening of the receiving cavity 121. An air inlet 1112 is provided on the cavity wall of the installation cavity 1111 close to the dust collection box 12, and the air inlet 1112 is communicated with the receiving cavity 121.

[0039] Refer to Figure 3 and Figure 4, on the outer periphery of one end of the main body 111 away from the air outlet 1113, there is a first annular groove 1114. One end of the dust collection box 12 is embedded in the first annular groove 1114. The wall of the accommodating cavity 121 is in contact with the wall of the first annular groove 1114, and one end of the dust collection box 12 abuts against the bottom of the first annular groove 1114. At the wall of the first annular groove 1114, there is a first limiting strip 1115 fixedly connected. The first limiting strip 1115 extends along the circumferential direction of the main body 111. At the wall of the first annular groove 1114, there is a first abutting strip 1116 fixedly connected. One end of the first abutting strip 1116 is fixedly connected to one end of the first limiting strip 1115, and the other end of the first abutting strip 1116 is fixedly connected to the bottom of the first annular groove 1114. On the wall of the accommodating cavity 121, there is a first embedding groove 123. The side of the first embedding groove 123 close to the main body 111 penetrates through the dust collection box 12. The first embedding groove 123 is used for the first limiting strip 1115 and the first abutting strip 1116 to slide and embed. The sliding direction of the first limiting strip 1115 and the first abutting strip 1116 is parallel to the axis direction of the main body 111. On one side wall of the first embedding groove 123 along the length direction of the first limiting strip 1115, there is a first limiting groove 124. The first limiting groove 124 is used for the first limiting strip 1115 to embed. At the bottom of the first limiting groove 124, there is a first clamping block 125 fixedly connected. The first clamping block 125 is located on the side of the first limiting groove 124 away from the first embedding groove 123. One end of the first limiting strip 1115 away from the first abutting strip 1116 is provided with a first chamfer 11151. The first chamfer 11151 is located on the side of the first limiting strip 1115 away from the wall of the first annular groove 1114. The first chamfer 11151 is used to abut against the first clamping block 125. On the side of the first limiting strip 1115 away from the wall of the first annular groove 1114, there is a first clamping groove 11152. The first clamping groove 11152 is used for the first clamping block 125 to embed. On both sides of the first clamping block 125 along the circumferential direction of the first limiting strip 1115, there are first rounded corners 1251. The first rounded corners 1251 are used to abut against the wall of the first clamping groove 11152. There are several first limiting strips 1115, and several first limiting strips 1115 are distributed at intervals around the axis of the main body 111. In this embodiment, there are two first limiting strips 1115, and the number of the first limiting grooves 124 and the first embedding grooves 123 is the same as the number of the first limiting strips 1115 and they correspond one by one.

[0040] Refer to Figure 1 , a wet and dry dual-purpose handheld vacuum cleaner further includes a filtering mechanism 3. The filtering mechanism 3 includes a first filtering component 31. The first filtering component 31 is embedded in the accommodating cavity 121. The first filtering component 31 is connected to the main body 111 and covers the air inlet 1112.

[0041] Refer to Figure 2 and Figure 3, one end of the main body 111 close to the dust collection box 12 is fixedly connected with a rib 1117. The rib 1117 includes a horizontal bar 11172 and a vertical bar 11171. The length direction of the vertical bar 11171 is vertical, the length direction of the horizontal bar 11172 is horizontal, the horizontal bar 11172 and the vertical bar 11171 intersect, and the horizontal bar 11172 and the vertical bar 11171 are arranged corresponding to the air inlet 1112. In this embodiment, there are two vertical bars 11171, and the two vertical bars 11171 are symmetrically distributed along the length direction of the horizontal bar 11172. There are four horizontal bars 11172, and the four horizontal bars 11172 are evenly distributed along the length direction of the vertical bar 11171.

[0042] Refer to Figure 3 and Figure 4 , the first filter assembly 31 includes a fixed seat 36. The fixed seat 36 is coaxially and slidably embedded in the accommodation cavity 121. A third limit groove 126 is provided on the cavity wall of the accommodation cavity 121 away from the handle 112. A limit block 361 is fixedly connected to the outer wall of the fixed seat 36. The limit block 361 is slidably embedded in the third limit groove 126. The sliding direction of the limit block 361 is parallel to the sliding direction of the fixed seat 36, and the side wall of the limit block 361 is in contact with the groove wall of the third limit groove 126. The fixed seat 36 is annular. One surface of the fixed seat 36 abuts against one end of the main body 111 close to the air inlet 1112. The fixed seat 36 is sleeved on the outer periphery of the rib 1117. Third round corners 11173 are provided at both ends of the rib 1117 along the length direction of the rib 1117. The third round corners 11173 are located on the side of the rib 1117 away from the main body 111, and the third round corners 11173 are used to abut against the inner wall of the fixed seat 36.

[0043] Refer to Figure 3 and Figure 5, the first filtering component 31 further includes a first connecting seat 33, a second connecting seat 34 and a filter paper 35. A rotating groove 362 is coaxially provided on the side of the fixed seat 36 away from the main body 111. The filter paper 35 is conical, and the cross-section of the filter paper 35 is gear-shaped. The first connecting seat 33 is fixedly connected to one end of the filter paper 35, and the second connecting seat 34 is fixedly connected to the other end of the filter paper 35. A first installation groove 331 is provided at one end of the first connecting seat 33 away from the main body 111, and the large-diameter end of the filter paper 35 is embedded in the first installation groove 331. The second connecting seat 34 includes a connecting plate 341 and a convex block 342. The connecting plate 341 is fixedly connected to the end of the filter paper 35 away from the first connecting seat 33, and the convex block 342 is fixedly connected to the surface of the connecting plate 341 close to the first connecting seat 33. The convex block 342 is embedded in the filter paper 35, and the outer wall of the convex block 342 is in contact with the inner wall of the filter paper 35. A rotating groove 362 is coaxially provided on the surface of the fixed seat 36 away from the main body 111. The first connecting seat 33 is coaxially and rotatably embedded in the rotating groove 362. The first connecting seat 33 is annular, and the inner wall of the first connecting seat 33 is flush with the inner wall of the fixed seat 36. A limiting ring 332 is fixedly connected to the outer periphery of the first connecting seat 33, and a fourth limiting groove 363 is provided at the groove wall of the rotating groove 362. The limiting ring 332 is rotatably embedded in the fourth limiting groove 363.

[0044] Refer to Figure 1 and Figure 5 , a transmission seat 333 is fixedly connected to the inner wall of the first connecting seat 33. The transmission seat 333 is provided with a first limiting hole 3331. The axis of the first limiting hole 3331 coincides with the axis of the output shaft of the motor in the vacuum generator 13. The output shaft of the motor in the vacuum generator 13 passes through the housing 11 and is embedded in the first limiting hole 3331. The output shaft of the motor in the vacuum generator 13 is circumferentially fixed to the first limiting hole 3331.

[0045] Refer to Figure 5, the vacuum cleaner body 1 further includes a filter cartridge 16. The filter cartridge 16 is sleeved on the outer peripheries of the first connection seat 33, the second connection seat 34, and the filter paper 35. A through groove 161 is provided on the outer wall of the filter cartridge 16 on the side away from the handle 112, and the through groove 161 communicates with both the inside and outside of the filter cartridge 16. A second annular groove 364 is provided on the outer periphery of the end of the fixing seat 36 away from the main body 111. One end of the filter cartridge 16 is embedded in the second annular groove 364, the inner wall of the filter cartridge 16 is in contact with the groove wall of the second annular groove 364, and one end of the filter cartridge 16 abuts against the bottom of the second annular groove 364. A second limiting strip 365 is fixedly connected to the groove wall of the second annular groove 364, the second limiting strip 365 extends circumferentially along the fixing seat 36, a second abutting strip 366 is fixedly connected to the groove wall of the second annular groove 364, one end of the second abutting strip 366 is fixedly connected to one end of the second limiting strip 365, and the other end of the second abutting strip 366 is fixedly connected to the bottom of the second annular groove 364. A second embedding groove 162 is provided on the inner wall of the filter cartridge 16. The side of the second embedding groove 162 close to the main body 111 penetrates through the filter cartridge 16. The second embedding groove 162 is used for the second limiting strip 365 and the second abutting strip 366 to slide and embed. The sliding directions of the second limiting strip 365 and the second abutting strip 366 are parallel to the axis direction of the main body 111. A second limiting groove 163 is provided on one side wall of the second embedding groove 162 along the length direction of the second limiting strip 365. The second limiting groove 163 is used for the second limiting strip to be embedded. A second clamping block 164 is fixedly connected to the bottom of the second limiting groove 163. The second clamping block 164 is located on the side of the second limiting groove 163 away from the second embedding groove 162. A second chamfer 3651 is provided at one end of the second limiting strip 365 away from the second abutting strip 366. The second chamfer 3651 is located on the side of the second limiting strip 365 away from the groove wall of the second annular groove 364. The second chamfer 3651 is used to abut against the second clamping block 164. A second clamping groove 3652 is provided on the side of the second limiting strip 365 away from the groove wall of the second annular groove 364. The second clamping groove 3652 is used for the second clamping block 164 to be embedded. Second rounded corners 1641 are provided on both sides of the second clamping block 164 along the circumference of the second limiting strip 365. The second rounded corners 1641 are used to abut against the groove wall of the second clamping groove 3652. The number of the second limiting strips 365, the second limiting grooves 163, and the second embedding grooves 162 is the same as the number of the first limiting strips 1115 and they correspond one by one.

[0046] Refer to Figure 2 and Figure 6, one end of the dust collection box 12 far from the main body 111 is fixedly connected with a dust suction pipe 127. One end of the dust suction pipe 127 extends into the accommodation cavity 121. The axis of the dust suction pipe 127 is parallel to the axis of the dust collection box 12. One end of the dust suction pipe 127 far from the main body 111 is inclined towards the main body 111 on the side close to the handle 112. The dust suction pipe 127 is coaxially provided with a dust suction port 122, and the dust suction port 122 communicates the accommodation cavity 121 with the outside. The vacuum cleaner body 1 further includes a baffle 14 and a third reset member 15. The baffle 14 is slidably connected to one end of the dust suction pipe 127 close to the main body 111, and the sliding direction of the baffle 14 is parallel to the axis direction of the dust suction pipe 127. One end of the dust suction pipe 127 close to the main body 111 is fixedly connected with a guide post 128. The guide post 128 is located on the side of the dust suction pipe 127 far from the handle 112. The baffle 14 is provided with a guide hole 141, and the guide post 128 is slidably embedded in the guide hole 141. The sliding direction of the guide post 128 is parallel to the sliding direction of the baffle 14. A retaining ring 129 is fixedly connected to the outer periphery of the guide post 128 on the side far from the dust suction pipe 127. The third reset member 15 is connected between the retaining ring 129 and the baffle 14, and the third reset member 15 makes the baffle 14 have a tendency to cover the dust suction port 122. In this embodiment, the third reset member 15 adopts a spring. The third reset member 15 is sleeved on the outer periphery of the guide post 128. One end of the third reset member 15 is connected to the surface of the baffle 14 close to the main body 111, and the other end of the third reset member 15 is connected to the surface of the retaining ring 129 far from the main body 111.

[0047] Refer to Figure 1 and Figure 7, A wet-dry dual-purpose handheld vacuum cleaner further includes a sewage collection mechanism 2. The sewage collection mechanism 2 is connected to the suction pipe 127 and covers the suction port 122. The sewage collection mechanism 2 includes a sewage tank 21, a first sealing ring 29, and a cover plate 22. An empty cavity 211 is provided at the upper end of the sewage tank 21. The cover plate 22 is connected to the sewage tank 21 and covers the orifice of the empty cavity 211. A third annular groove 216 is provided at the upper end of the sewage tank 21. The first sealing ring 29 is embedded in the third annular groove 216. One end of the first sealing ring 29 abuts against the bottom of the third annular groove 216, and the other end of the first sealing ring 29 abuts against the surface of the cover plate 22 close to the empty cavity 211. A connecting strip 222 is fixedly connected to the surface of the cover plate 22 close to the sewage tank 21. There are several connecting strips 222, and the several connecting strips 222 are circumferentially and evenly distributed around the axis of the cover plate 22. The side wall of the connecting strip 222 close to the axis of the cover plate 22 is attached to the outer wall of the sewage tank 21. In this embodiment, there are three connecting strips 222. A third clamping block 223 is fixedly connected to the surface of the connecting strip 222 close to the sewage tank 21. The third clamping block 223 is located on the side of the connecting strip 222 away from the cover plate 22. One end of the third clamping block 223 away from the connecting strip 222 is provided with a third chamfer 2231. The third chamfer 2231 is located on the side of the third clamping block 223 away from the cover plate 22. The third chamfer 2231 is used to abut against the upper end of the sewage tank 21. A third clamping groove 217 is provided on the outer wall of the sewage tank 21. The number of the third clamping grooves 217 is the same as that of the connecting strips 222 and they correspond one by one. The third clamping groove 217 is used for the third clamping block 223 to be embedded.

[0048] The sewage collection mechanism 2 further includes a partition plate 23. A positioning ring 215 is fixedly connected to the wall of the empty cavity 211. The partition plate 23 is embedded in the empty cavity 211. The surface of the partition plate 23 away from the cover plate 22 abuts against the surface of the positioning ring 215 close to the cover plate 22. A number of positioning blocks 234 are fixedly connected to the side of the partition plate 23 away from the partition plate 23. The several positioning blocks 234 are evenly distributed around the axis of the partition plate 23. In this embodiment, there are four positioning blocks 234. A positioning groove 2151 is provided on the surface of the positioning ring 215 close to the partition plate 23. The number of the positioning grooves 2151 is the same as that of the positioning blocks 234 and they correspond one by one. The positioning groove 2151 is used for the positioning blocks 234 to be embedded. The partition plate 23 divides the empty cavity 211 into a liquid storage cavity 2111 and a dust outlet cavity 2112. The dust outlet cavity 2112 is located above the liquid storage cavity 2111.

[0049] Refer to Figure 6 and Figure 7, a connecting block 213 is fixedly connected to the outer wall of the sewage tank 21. The connecting block 213 is used to be embedded in the dust suction port 122. In this embodiment, the connecting block 213 and the dust suction port 122 are in interference fit. An outlet 214 is provided at one end of the connecting block 213 away from the sewage tank 21. The outlet 214 communicates the dust collection chamber 2112 with the outside. A feed pipe 218 is fixedly connected to the outer wall of the sewage tank 21 on the side away from the connecting block 213. One end of the feed pipe 218 extends into the liquid storage chamber 2111. The axis of the feed pipe 218 is parallel to the axis of the outlet 214. The surface of the feed pipe 218 away from the sewage tank 21 is parallel to the surface of the dust suction pipe 127 away from the main body 111. A feed port 212 is provided at one end of the feed pipe 218 away from the sewage tank 21. The feed port 212 communicates the liquid storage chamber 2111 with the outside.

[0050] The sewage collection mechanism 2 further includes a floating plate 24, a closing plate 25 and a fourth reset member 26. A communication groove 219 is provided at the inner wall of the feed port 212. The communication groove 219 communicates with the liquid storage chamber 2111. The closing plate 25 is slidably embedded in the communication groove 219. The sliding direction of the closing plate 25 is parallel to the axis direction of the cover plate 22. The closing plate 25 is used to realize the on-off of the feed port 212. A first sliding groove 210 is provided at the wall of the liquid storage chamber 2111. A first sliding block 251 is connected to the side wall of the closing plate 25. The first sliding block 251 is slidably embedded in the first sliding groove 210. The sliding direction of the first sliding block 251 is parallel to the sliding direction of the closing plate 25. The fourth reset member 26 is connected between the first sliding block 251 and the sewage tank 21. The fourth reset member 26 makes the closing plate 25 tend to be away from the feed port 212. In this embodiment, the fourth reset member 26 is a spring. One end of the fourth reset member 26 is connected to the surface of the first sliding block 251 close to the cover plate 22, and the other end of the fourth reset member 26 is connected to the side wall of the first sliding groove 210 close to the cover plate 22. The floating plate 24 is slidably embedded in the liquid storage chamber 2111. The sliding direction of the floating plate 24 is parallel to the sliding direction of the closing plate 25. A second sliding block 241 is fixedly connected to the side wall of the floating plate 24. The second sliding block 241 is slidably embedded in the first sliding groove 210. The sliding direction of the second sliding block 241 is parallel to the sliding direction of the floating plate 24. In this embodiment, the first sliding block 251 and the second sliding block 241 are dovetail blocks.

[0051] Referring to Figure 1 and Figure 8 , a convex platform 232 is fixedly connected to the surface of the partition plate 23 close to the liquid storage chamber 2111. The axis of the convex platform 232 coincides with the axis of the partition plate 23. A groove 233 is provided on the other side of the partition plate 23. The axis of the groove 233 coincides with the axis of the convex platform 232. A plurality of filter holes 231 are uniformly distributed at the groove wall on the side of the groove 233 away from the outlet 214. The filter holes 231 communicate with the liquid storage chamber 2111. The filtering mechanism 3 further includes a second filtering component 32. The second filtering component 32 is embedded in the groove 233 and covers the filter holes 231.

[0052] Reference Figure 8 and Figure 9 As shown in FIGS. 2 and 3, the second filter assembly 32 includes a fixed seat 36, a first connection seat 33, a second connection seat 34, and filter paper 35. The fixed seat 36 is embedded in the groove 233, and the outer wall of the fixed seat 36 is in contact with the wall of the groove 233. A fifth limiting groove 235 is provided on the wall of the groove 233, and the limiting block 361 is slidably embedded in the fifth limiting groove 235. The sliding direction of the limiting block 361 is parallel to the axis direction of the cover plate 22, and the side wall of the limiting block 361 is in contact with the wall of the fifth limiting groove 235. On the surface of the cover plate 22 close to the dust outlet chamber 2112, a plurality of abutting columns 221 are fixedly connected. The other ends of the abutting columns 221 abut against the surface of the fixed seat 36 close to the cover plate 22, and the plurality of abutting columns 221 are evenly distributed around the axis of the cover plate 22. In this embodiment, there are three abutting columns 221.

[0053] The sewage collection mechanism 2 further includes a scraping assembly 27. The scraping assembly 27 includes a scraping block 271, a lead screw 272, an impeller 273, and a transmission component 274. The scraping block 271 is slidably embedded in the receiving groove outside the filter paper 35, and the side wall of the scraping block 271 is in contact with the outer wall of the filter paper 35. The scraping block 271 is located on the side close to the discharge port 214. The lead screw 272 is rotatably embedded in the groove 233, and the scraping block 271 is threadedly connected to the lead screw 272. In this embodiment, the lead screw 272 is a reciprocating lead screw 272. The impeller 273 is rotatably connected to the partition plate 23. The rotation axis of the impeller 273 is horizontal, and the rotation axis of the impeller 273 is perpendicular to the axis of the discharge port 214. The impeller 273 is directly opposite to the discharge port 214. The transmission component 274 is connected between the impeller 273 and the lead screw 272. The transmission component 274 includes a second driving bevel gear 2741, a second driven bevel gear 2742, a second driving pulley 2743, a second driven pulley 2744, a second belt body 2745, a third driving pulley 2746, a third driven pulley 2747, and a third belt body 2748. The second driven bevel gear 2742 is coaxially and fixedly connected to one end of the lead screw 272 close to the cover plate 22. The second driving bevel gear 2741 is rotatably embedded in the groove 233. The rotation axis of the second driving bevel gear 2741 is parallel to the rotation axis of the impeller 273, and the second driving bevel gear 2741 meshes with the second driven bevel gear 2742. The second driven pulley 2744 is coaxially connected to the second driving bevel gear 2741. The second driving pulley 2743 is rotatably connected to the partition plate 23. The second belt body 2745 is sleeved on the outer circumferences of the second driven pulley 2744 and the second driving pulley 2743. The third driven pulley 2747 is coaxially connected to the second driving pulley 2743. The third driving pulley 2746 is coaxially connected to the impeller 273. The third belt body 2748 is sleeved on the outer circumferences of the third driven pulley 2747 and the third driving pulley 2746.

[0054] The sewage collection mechanism 2 further includes a driving component 28. The driving component 28 includes a gear 281, a rack 282 and a first resetting member 283. The partition plate 23 is provided with a rotating cavity 236, and the rotating cavity 236 is located below the groove 233. A limiting seat 237 is fixedly connected to the wall of the rotating cavity 236 close to the groove 233. The limiting seat 237 is located on the side close to the lead screw 272. A sliding cavity 2371 is provided at one end of the limiting seat 237 close to the groove 233. The rack 282 is slidably embedded in the sliding cavity 2371, and the sliding direction of the rack 282 is parallel to the axis direction of the lead screw 272. A first communication hole 238 is provided on the wall of the rotating cavity 236, and the first communication hole 238 is communicated with the groove 233. One end of the rack 282 extends into the groove 233 after passing through the first communication hole 238, and the rack 282 is used for abutting against the scraping block 271. The first resetting member 283 is connected between the rack 282 and the partition plate 23, and the first resetting member 283 makes the rack 282 have a tendency to extend into the groove 233. In this embodiment, the first resetting member 283 is a spring. One end of the first resetting member 283 is connected to the bottom of the sliding cavity 2371, and the other end of the resetting member is connected to the end of the rack 282 away from the scraping block 271. The gear 281 is rotatably embedded in the sliding cavity 2371, the rotation axis of the gear 281 is parallel to the rotation axis of the impeller 273, and the gear 281 meshes with the rack 282.

[0055] The driving assembly 28 includes a ratchet wheel 284, a pawl 285, a second reset member 286, a first driving pulley 287, a first driven pulley 288, a first belt 289, a first driving bevel gear 2810 and a first driven bevel gear 2811. The first driven bevel gear 2811 is rotatably embedded in the rotating cavity 236, and the rotation axis of the first driven bevel gear 2811 coincides with the axis of the filter paper 35. One end of the second connecting seat 34 away from the first connecting seat 33 is coaxially and fixedly connected with a transmission column 343. A second communication hole 239 is provided in the wall of the rotating cavity 236. One end of the transmission section away from the second connecting seat 34 passes through the second communication hole 239 and extends into the rotating cavity 236. A second limiting hole 28111 is coaxially provided at the upper end of the first driven bevel gear 2811 for the transmission column 343 to be embedded. The second limiting hole 28111 is circumferentially fixed to the transmission column 343. The first driving bevel gear 2810 is rotatably embedded in the rotating cavity 236, and the rotation axis of the first driving bevel gear 2810 is parallel to the rotation axis of the gear 281. The first driven bevel gear 2811 meshes with the first driving bevel gear 2810. The first driving pulley 287 is coaxially and rotatably connected to the gear 281. The first driven pulley 288 is coaxially connected to the first driving bevel gear 2810. The first belt 289 is sleeved on the outer circumferences of the first driven pulley 288 and the first driving pulley 287. The ratchet wheel 284 is coaxially connected to the gear 281. One end of the pawl 285 is rotatably connected to the first driving pulley 287. The rotation axis of the pawl 285 is parallel to the rotation axis of the first driving pulley 287. The other end of the pawl 285 is used to mesh with the ratchet wheel 284. The second reset member 286 is connected between the pawl 285 and the first driving pulley 287. The second reset member 286 makes the pawl 285 tend to mesh with the ratchet wheel 284. In this embodiment, the second reset member 286 is a torsion spring. One end of the second reset member 286 is connected to the first driving pulley 287, and the other end of the second reset member 286 is connected to the pawl 285.

[0056] Referring to Figure 1 , a wet-dry dual-purpose handheld vacuum cleaner further includes a connecting pipe 4 and a brush 5. One end of the connecting pipe 4 is used to be embedded in the dust suction port 122 or the feeding port 212. The connecting pipe 4 is in interference fit with the dust suction port 122 and the feeding port 212. The brush 5 is slidably connected to the other end of the connecting pipe 4. The sliding direction of the brush 5 is parallel to the length direction of the connecting pipe 4.

[0057] The implementation principle of a wet-dry dual-purpose handheld vacuum cleaner in an embodiment of the present application is as follows: When it is necessary to suck liquid substances, the sewage collection mechanism 2 is installed in the dust collection box 12. The feed pipe 218 is directed at the liquid substance, and the vacuum generator 13 operates, causing a negative pressure to be generated near the air inlet 1112 in the installation cavity 1111, so that the air flow moves from the side of the air inlet 1112 to the side of the air outlet 1113, sucking external objects from the feed port 212 into the liquid storage cavity 2111. After reaching the liquid storage cavity 2111, the space in the liquid storage cavity 2111 is relatively large, causing the pressure in the liquid storage cavity 2111 to decrease. The liquid substance falls onto the bottom of the liquid storage cavity 2111 under the action of gravity, pushing the floating plate 24 upward. The upward movement of the floating plate 24 pushes the closing plate 25 to move upward against the elastic force of the fourth reset member 26. When the liquid level in the liquid storage cavity 2111 reaches a certain height, the closing plate 25 closes the feed pipe 218, blocking the continuous entry of external substances into the liquid storage cavity 2111.

[0058] Lighter solid objects are filtered by the second filter assembly 32 and embedded in the accommodation groove on the outer periphery of the filter paper 35. When the air flow reaches the impeller 273 and rotates, it drives the third driving pulley 2746 to rotate. Through the third belt 2748, it drives the third driven pulley 2747 to rotate, driving the second driving pulley 2743 to rotate. Through the second belt 2745, it drives the second driven pulley 2744 to rotate, driving the second driving bevel gear 2741 to rotate, driving the second driven bevel gear 2742 to rotate, driving the lead screw 272 to rotate. The lead screw 272 is threadedly connected to the scraping block 271, driving the scraping block 271 to slide along the axis of the lead screw 272, scraping off the impurities in the accommodation cavity 121 on the outer periphery of the filter paper 35. The abutting block moves downward to abut against the rack 282, pushing the rack 282 to move downward against the elastic force of the first reset member 283, driving the gear 281 to rotate, driving the ratchet 284 to rotate. The ratchet 284 drives the first driving pulley 287 to rotate through the pawl 285. Through the first belt 289, it drives the first driven pulley 288 to rotate, driving the first driving bevel gear 2810 to rotate, driving the first driven bevel gear 2811 to rotate, driving the second connecting seat 34 to rotate and driving the filter paper 35 to rotate, so that the next accommodation groove corresponds to the scraping block 271.

[0059] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A wet and dry dual-purpose handheld vacuum cleaner, characterized in that: The invention comprises a housing (11), a first filter assembly (31), a dust box (12), a vacuum generator (13) and a sewage collection mechanism (2); a receiving chamber (121) is provided at one end of the dust box (12); the housing (11) is connected to the dust box (12) and covers the opening of the receiving chamber (121); the housing (11) is provided with a mounting chamber (1111); an air inlet (1112) is provided at a wall of the mounting chamber (1111) on one side close to the dust box (12); the air inlet (1112) is in communication with the receiving chamber (121); the wall of the receiving chamber (121) is provided with a plurality of air inlets (1112); An air outlet (1113) is provided at the housing; the air outlet (1113) is communicated with the outside; the vacuum generator (13) is embedded in the installation cavity (1111); the first filter assembly (31) is embedded in the accommodating cavity (121); the first filter assembly (31) is connected to the housing (11) and covers the air inlet (1112); a dust suction port (122) is provided at the cavity wall of the accommodating cavity (121) on a side away from the housing (11); the dust suction port (122) is communicated with the outside; the sewage collection mechanism (2) is connected to the dust collection box (12) and covers the dust suction port (122).

2. The wet and dry dual-purpose handheld vacuum cleaner according to claim 1, characterized in that: The invention also comprises a second filter assembly (32); the sewage collection mechanism (2) comprises a sewage tank (21), a cover plate (22) and a partition plate (23); a cavity (211) is provided at the upper end of the sewage tank (21); the cover plate (22) is connected to the sewage tank (21) and covers the cavity opening of the cavity (211); the partition plate (23) is embedded in the cavity (211); the partition plate (23) divides the cavity (211) into a liquid storage cavity (2111) and a dust outlet cavity (2112); the dust outlet cavity (2112) is located above the liquid storage cavity (2111); the partition plate (23) is provided with a filter hole (231); the filter hole (231) is connected to the liquid storage cavity (2111); A liquid storage chamber (2111) and a dust outlet chamber (2112); the second filter assembly (32) is embedded in the dust outlet chamber (2112) and covers the filter hole (231); a feed port (212) is provided on the wall of the liquid storage chamber (2111); the feed port (212) is connected to the outside; a connecting block (213) is connected to a side of the sewage tank (21) away from the feed port (212); the connecting block (213) is used to be embedded in the dust suction port (122); a discharge port (214) is provided at one end of the connecting block (213) away from the sewage tank (21); the discharge port (214) is connected to the dust outlet chamber (2112) and the outside.

3. The wet and dry dual-purpose handheld vacuum cleaner according to claim 2, characterized in that: The sewage collection mechanism (2) further comprises a floating plate (24), a closing plate (25) and a fourth reset member (26); the upper end of the closing plate (25) is slidably embedded in the feed port (212); the sliding direction of the closing plate (25) is vertical; the closing plate (25) is used to realize the opening and closing of the feed port (212); the fourth reset member (26) is connected between the closing plate (25) and the sewage tank (21); the fourth reset member (26) makes the closing plate (25) have a tendency to move away from the feed port (212); the floating plate (24) is slidably embedded in the storage cavity; the sliding direction of the floating plate (24) is parallel to the sliding direction of the closing plate (25); the floating plate (24) is used to abut against the lower end of the closing plate (25).

4. The wet and dry dual-purpose handheld vacuum cleaner according to claim 2, characterized in that: A positioning ring (215) is connected to the cavity wall of the cavity (211); a surface of a side of the partition (23) away from the cover plate (22) abuts against the positioning ring (215); a side of the partition (23) close to the liquid storage cavity (2111) is connected to a boss (232); a groove (233) is provided on the other side of the partition (23); the filter hole (231) is located on the groove wall of the groove (233) away from the feed port (212); the second filter assembly (32) comprises a first connection seat (33) , a second connecting seat (34) and a filter paper (35); the filter paper (35) is in a conical shape; the cross section of the filter paper (35) is in a gear shape; the large diameter end of the filter paper (35) is connected to the first connecting seat (33); the other end of the filter paper (35) is connected to the second connecting seat (34); a contact column (221) is connected to a side of the cover plate (22) close to the dust outlet chamber (2112); the contact column (221) contacts an end of the first connecting seat (33) close to the cover plate (22).

5. The wet and dry dual-purpose handheld vacuum cleaner according to claim 4, characterized in that: The sewage collection mechanism (2) further comprises a scraping assembly (27); the scraping assembly (27) comprises a scraping block (271), a screw rod (272), an impeller (273) and a transmission component (274); the scraping block (271) is slidably embedded in a receiving groove outside the filter paper (35); the side wall of the scraping block (271) is in contact with the outer wall of the filter paper (35); the screw rod (272) is rotatably connected to the partition (23); the screw rod (272) and the scraping block (271) are threadedly connected; the impeller (273) is rotatably connected to the partition (23); the impeller (273) is directly opposite to the discharge port (214); and the transmission component (274) is connected between the screw rod (272) and the impeller (273).

6. The wet and dry dual-purpose handheld vacuum cleaner according to claim 5, characterized in that: The invention also comprises a driving assembly (28); the driving assembly (28) comprises a gear (281), a rack (282), a first reset member (283), a ratchet (284), a pawl (285), a second reset member (286), a first driving pulley (287), a first driven pulley (288), a first belt body (289), a first driving bevel gear (2810) and a first driven bevel gear (2811); the rack (282) is slidably connected to the partition (23); one end of the rack (282) The first reset member (283) is connected to the rack (282) and the partition (23); the first reset member (283) makes the rack (282) tend to approach the scraper (271); the gear (281) is rotatably connected to the partition (23); the gear (281) is meshed with the rack (282); the ratchet (284) is coaxially connected to the gear (281); the first driving pulley (287) is rotatably connected to the partition (23); the first main pulley (287) is rotatably connected to the partition (23); The rotation axis of the driven pulley (287) coincides with the rotation axis of the ratchet wheel (284); one end of the pawl (285) is rotatably connected to the first driving pulley (287); the other end of the pawl (285) is used to mesh with the ratchet wheel (284); the second reset member (286) is connected between the pawl (285) and the first driving pulley (287); the second reset member (286) makes the pawl (285) have a tendency to mesh with the ratchet wheel (284); the first driven pulley (288) rotates connected to the partition (23); the first belt body (289) is sleeved on the outer circumference of the first driven pulley (288) and the first driving pulley (287); the first driving bevel gear (2810) is coaxially connected to the first driven pulley (288); the first driven bevel gear (2811) is connected to the second connecting seat (34); the axis of the first driven bevel gear (2811) coincides with the axis of the filter element paper (35); and the first driven bevel gear (2811) is meshed with the first driving bevel gear (2810).

7. The wet and dry dual-purpose handheld vacuum cleaner according to claim 2, characterized in that: It also includes a connecting pipe (4) and a brush (5); one end of the connecting pipe (4) is used to be embedded in the dust suction port (122) or the feed port (212); and the brush (5) is slidably connected to the outer periphery of the connecting pipe (4).

8. The wet and dry dual-purpose handheld vacuum cleaner according to claim 1, characterized in that: It also comprises a baffle (14) and a third restoring member (15); the baffle (14) is embedded in the accommodating cavity (121); the third restoring member (15) is connected between the dust collecting box (12) and the baffle (14); the third restoring member (15) enables the baffle (14) to have a tendency to cover the dust suction port (122).

9. The wet and dry dual-purpose handheld vacuum cleaner according to claim 1, characterized in that: The filter cartridge (16) is also included; the filter cartridge (16) is sleeved on the outer periphery of the first filter assembly (31); a through groove (161) is provided on the upper outer wall of the filter cartridge (16); the through groove (161) communicates with both the inner and outer sides of the filter cartridge (16); the first filter assembly (31) includes a first connecting seat (33), a second connecting seat (34) and filter paper (35); the first connecting seat (33) is connected to the housing (11).

10. The wet and dry dual-purpose handheld vacuum cleaner according to claim 9, characterized in that: The first connecting seat (33) is rotatably embedded in the filter cartridge (16); the first connecting seat (33) is connected to the vacuum generator (13); and the rotation axis of the first connecting seat (33) coincides with the axis of the motor output shaft in the vacuum generator (13).

Images