Modularized handheld dust collector convenient to disassemble and assemble

Abstract

The modular handheld dust collector convenient to disassemble and assemble comprises a dust collector handle, an air inlet pipe is embedded in a first mounting groove in the dust collector handle, and the front end of the air inlet pipe is in butt joint with a dust collection pipe connector in a sealed mode; the connecting assembly is in butt joint with a third connecting base provided with a dust collecting pipe in a penetrating mode, the connecting assembly comprises a first connecting base axially inserted and positioned in the dust collecting pipe connector and a second connecting base located outside the dust collecting pipe connector in a sleeving mode, an inner cavity in one side of the third connecting base axially extends out of an insertion pipe, and the insertion pipe is inserted into the first connecting base; the outer edge of one side of the third connecting seat sleeves the dust collecting pipe joint and is spliced with the outer end surface of the second connecting seat; and the dust collector host is butted with the dust cup and is hermetically assembled at the top of the dust collector handle together with the dust cup. The problems that a locking structure is easily touched by mistake at an air inlet of an existing dust collector, so that the structure is unlocked and loosened, an air duct system in the dust collector locally leaks air, and the dust collection and cleaning efficiency is influenced can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum cleaners, in particular to a modular handheld vacuum cleaner which is easy to assemble and disassemble. Background Art

[0002] The air inlet structure of a handheld vacuum cleaner generally needs to be connected to a ground brush or other dust collecting structure through a dust collecting tube. The air inlet structure and the dust collecting tube joint are mostly simply plugged in, and the lock and the card slot between the two are achieved by operating the button at the end. When this structure is used, it is easy to accidentally touch the button, causing the air inlet structure to unlock and loosen, resulting in local air leakage in the air duct system in the vacuum cleaner, affecting the dust collection and cleaning efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a modular and easy-to-assemble and disassemble handheld vacuum cleaner in order to solve the problem that the locking structure at the air inlet of the existing vacuum cleaner is easily touched accidentally, resulting in unlocking and loosening of the structure, local air leakage in the air duct system of the vacuum cleaner, and affecting the dust collection and cleaning efficiency.

[0004] In order to achieve the above object, the present invention adopts the following technical solution: a modular handheld vacuum cleaner that is easy to assemble and disassemble, comprising:

[0005] A vacuum cleaner handle, wherein an air inlet pipe is embedded in a first mounting groove thereof, and a front end of the air inlet pipe is sealed and docked with a dust collecting pipe joint;

[0006] A connecting assembly, wherein a third connecting seat equipped with a dust collecting pipe is provided inside the connecting assembly, and the connecting assembly comprises a first connecting seat axially inserted and positioned in the dust collecting pipe joint, and a second connecting seat sleeved and positioned outside the dust collecting pipe joint, an insert tube axially extending from an inner cavity on one side of the third connecting seat, the insert tube is inserted in the first connecting seat, and an outer edge on one side of the third connecting seat sleeves on the outside of the dust collecting pipe joint and the first connecting seat and is spliced ​​with an outer end surface of the second connecting seat;

[0007] The vacuum cleaner main unit is docked with the dust cup and sealed together with it on the top of the vacuum cleaner handle, and comprises a motor, a motor housing and a battery pack, wherein the motor housing comprises a motor frame, a front housing and a rear housing.

[0008] As a further description of the above technical solution:

[0009] The air inlet pipe is equipped with a sensor, and the inner and outer sides of the sensor are respectively provided with probes connected to the inner cavity of the air inlet pipe and the first mounting groove. The bottom of the motor housing is provided with a connecting port connected to the first mounting groove, and the surface of the vacuum cleaner handle is provided with a through hole connecting the outside world and the first mounting groove.

[0010] As a further description of the above technical solution:

[0011] A spring block is arranged at the notch on the insert tube, and a plurality of first clamping blocks are arranged on the outer side of the spring block. The first clamping blocks are correspondingly clamped on the clamping ports of the first connecting seat.

[0012] As a further description of the above technical solution:

[0013] A second mounting groove is provided at the bottom of the first connecting seat, a wiring seat is arranged in the second mounting groove, a through hole for docking the external wiring and the expansion tube on one side of the wiring tube is provided on one side of the wiring seat, the inner side of the through hole is docked with the positioning groove, the other side of the wiring tube and the expansion tube docked with the internal wiring are arranged in the positioning groove, one side of the wiring seat is connected to one side of the pressing plate through a bending block, a limiting convex rib is provided on the pressing plate, the notch on the limiting rib and the positioning groove together position the wiring tube, and the other side of the pressing plate is clamped on the second clamping groove on the other side of the wiring seat through a first clamping hook.

[0014] As a further description of the above technical solution:

[0015] A cross-shaped button is arranged at the notch on the surface of the second connecting seat, a first pressing block is arranged on one side of the cross-shaped button, and a second clamping block inside the connecting block on the other side is clamped on the first clamping groove on the surface of the dust collecting pipe joint.

[0016] As a further description of the above technical solution:

[0017] The end faces on both sides of the second connecting seat are both wedge-shaped surfaces, which are respectively spliced ​​with the splicing surface extending outward from the surface of the vacuum cleaner handle and the inner end face of the third connecting seat. A plurality of insertion rods are circumferentially arranged on the outer end face of the second connecting seat, and the insertion rods are inserted into the first slot of the third connecting seat.

[0018] As a further description of the above technical solution:

[0019] The motor housing is a cone structure with a plurality of spindle-shaped protrusions arranged circumferentially on the surface. An outer positioning ring is arranged on the outer side of the motor frame. The first U-shaped plug at the front end of the outer positioning ring is inserted into the second slot on the inner side of the edge of the front housing. The first nut on the outer positioning ring is connected to the third nut on the inner side of the edge of the front housing and is fixed by a pin.

[0020] As a further description of the above technical solution:

[0021] The second U-shaped plug at the rear end of the outer positioning ring is plugged into the third slot inside the edge of the rear shell body, and the second nut on the motor frame is docked with the fourth nut on the inner positioning plate of the rear shell body and fixed by pins.

[0022] As a further description of the above technical solution:

[0023] The stepped plug-in block at the front end of the battery pack is plugged into the interior of the rear shell, a positioning ring is extended on the outside thereof, a second pressing block is hinged inside the positioning ring, an elastic member is arranged between the inner side of the second pressing block and the stepped plug-in block, and a second hook on one side of the second pressing block is engaged with the second slot on the inner wall of the rear shell.

[0024] As a further description of the above technical solution:

[0025] An L-shaped slot is also provided at the bottom of the vacuum cleaner handle, and the accessory bracket is connected to the L-shaped slot through an elastic clamping block, on which a positioning pipe seat for storing vacuum cleaner accessories is provided.

[0026] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0027] 1. The inlet of the handheld vacuum cleaner of the present invention is modularly docked with the third connecting seat of the dust collecting pipe through the first connecting seat and the second connecting seat arranged inside and outside, which ensures the assembly strength and the convenience of disassembly and assembly while making the assembly method diverse. During assembly, the first connecting seat is first assembled in the dust collecting pipe joint, and then the second connecting seat and the third connecting seat can be docked first, and then they are assembled on the dust collecting pipe joint. The second connecting seat can also be positioned on the dust collecting pipe joint first, and then the third connecting seat and other accessories can be docked. During disassembly, the above steps are performed in reverse order, and the methods are diverse and the applicability is improved.

[0028] 2. The vacuum cleaner can perform real-time monitoring of the filtering efficiency, and synchronously monitor the parameters of the dust-laden airflow in the air inlet duct and the clean airflow discharged from the connecting port and the first mounting groove and filtered by the vacuum cleaner through the sensor probe, so as to provide feedback on the operation of the vacuum cleaner and improve the visualization and controllability of the use of the vacuum cleaner; the wiring socket at the inlet of the vacuum cleaner is easy to assemble, and the circuit connection of the gas-electric combination tube type dust collecting tube is stable; the motor housing is designed with a special shape to improve its structural strength and flow conduction performance, and the multiple positioning of the motor frame and the front housing and the rear housing further ensures the structural strength of the housing structure at the dust cup and the motor on the vacuum cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 The present invention is a schematic diagram of the structure of a modular handheld vacuum cleaner which is easy to assemble and disassemble.

[0031] Figure 2 The present invention is a disassembly diagram of a vacuum cleaner handle, a first connecting seat and a second connecting seat in a modular handheld vacuum cleaner that is easy to assemble and disassemble.

[0032] Figure 3 The present invention is a schematic diagram of the structure of an air inlet duct in a modular handheld vacuum cleaner that is easy to assemble and disassemble.

[0033] Figure 4 The present invention is a cross-sectional view of a third connecting seat in a modular handheld vacuum cleaner that is easy to assemble and disassemble.

[0034] Figure 5 The figure is a disassembly diagram of a wiring socket in a modular handheld vacuum cleaner that is easy to assemble and disassemble.

[0035] Figure 6 The present invention is a schematic diagram of the structure of a modular accessory bracket for a handheld vacuum cleaner that is easy to assemble and disassemble.

[0036] Figure 7 Disassembly of the motor housing in a modular and easy-to-disassemble handheld vacuum cleaner Figure 1 .

[0037] Figure 8 Disassembly of the motor housing in a modular and easy-to-disassemble handheld vacuum cleaner Figure 2 .

[0038] Fig. 9 The disassembly diagram of a modular and easy-to-disassemble handheld vacuum cleaner includes a vacuum cleaner handle, a rear shell, and a battery pack.

[0039] Fig.10 The figure shows the disassembly of the rear shell and battery pack of a modular handheld vacuum cleaner that is easy to disassemble and assemble.

[0040] Legend:

[0041] 1. Vacuum cleaner handle; 11. First mounting slot; 12. Dust collecting pipe joint; 13. First card slot; 14. Joint surface; 15. L-shaped card slot; 2. Air inlet pipe; 21. Sensor; 3. First connecting seat; 31. Card slot; 32. Second mounting slot; 33. Wiring seat; 331. Perforation; 332. Positioning slot; 333. Second card slot; 34. Wiring pipe; 35. Pressing plate; 351. Positioning rib; 352. Bending block; 353. First hook; 4. Second connecting seat; 41. Cross-shaped button; 42. First pressing block; 43. Connecting block; 44. Second card block; 45. Insertion rod; 5. Third connecting seat; 50. Dust collecting pipe; 51. Insert pipe; 52, spring block; 53, first card block; 54, first slot; 6, vacuum cleaner host; 61, motor frame; 611, outer positioning ring; 612, first U-shaped plug block; 613, first nut; 614, second U-shaped plug block; 615, second nut; 62, front shell; 621, second slot; 622, third nut; 63, rear shell; 631, third slot; 632, inner positioning plate; 633, fourth nut; 634, connecting port; 635, second slot; 7, battery pack; 71, stepped plug block; 72, second pressing block; 73, second hook; 8, accessory bracket; 81, positioning tube seat; 82, elastic card block. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters refer to similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in the subsequent drawings.

[0045] In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Embodiment 1:

[0048] See also Figure 1-10 The present invention provides a technical solution: a modular handheld vacuum cleaner that is easy to assemble and disassemble, comprising:

[0049] A vacuum cleaner handle 1, wherein an air inlet pipe 2 is embedded in a first mounting groove 11, and a front end of the air inlet pipe 2 is sealed and docked with a dust collecting pipe joint 12;

[0050] A connection assembly, in which a third connection seat 5 equipped with a dust collecting pipe 50 is inserted into the interior of the connection assembly, and includes a first connection seat 3 axially inserted and positioned in the dust collecting pipe joint 12, and a second connection seat 4 sleeved and positioned outside the dust collecting pipe joint 12, and an insert 51 axially extends from an inner cavity on one side of the third connection seat 5, and the insert 51 is inserted in the first connection seat 3, and an outer edge on one side of the third connection seat 5 is sleeved on the outside of the dust collecting pipe joint 12 and the first connection seat 3 and spliced ​​with the outer end surface of the second connection seat 4;

[0051] The vacuum cleaner main unit 6 is docked with the dust cup and sealed and assembled together on the top of the vacuum cleaner handle 1, and includes a motor, a motor housing and a battery pack 7. The motor housing includes a motor frame 61, a front housing 62 and a rear housing 63.

[0052] The inlet of the handheld vacuum cleaner of the present invention is modularly docked with the first connecting seat and the second connecting seat arranged inside and outside and the third connecting seat of the docking dust collecting pipe, which ensures the assembly strength and the convenience of disassembly and assembly while making the assembly method diverse. During assembly, the first connecting seat is first assembled in the dust collecting pipe joint, and then the second connecting seat and the third connecting seat can be docked first, and then they are assembled on the dust collecting pipe joint. The second connecting seat can also be positioned on the dust collecting pipe joint first, and then the third connecting seat and other accessories can be docked. During disassembly, the above steps can be reversed, and the methods are diverse and the applicability is improved.

[0053] A spring block 52 is provided at the notch on the insert tube 51, and a plurality of first clamping blocks 53 are provided on the outside of the spring block 52, and the first clamping blocks 53 are correspondingly clamped on the bayonet 31 of the first connecting seat 3. When the third connecting seat 5 is docked with the first connecting seat 3, after the insert tube 51 is inserted into the first connecting seat 3, the spring block 52 is pressed to rotate inward and deform until the first clamping block 53 is aligned and clamped with the bayonet 31, and the structure is elastically reset. At this time, the sealing ring at the inner end of the dust collecting tube 50 and the sealing ring in the dust collecting tube joint 12 and the first connecting seat 3 are sealed and spliced. When the structure is disassembled, the spring block 52 is pressed to flip inward, so that the first clamping block 53 and the bayonet 31 can be unlocked, and the third connecting seat 5 can be removed.

[0054] A cross-shaped button 41 is provided at the notch on the surface of the second connecting seat 4 , a first pressing block 42 is provided on one side of the cross-shaped button 41 , and a second clamping block 44 inside a connecting block 43 on the other side thereof is clamped on the first clamping groove 13 on the surface of the dust collecting pipe joint 12 .

[0055] Both side end faces of the second connection seat 4 are wedge-shaped faces, which are respectively spliced ​​on the splicing surface 14 extending outward from the surface of the vacuum cleaner handle 1 and the inner end face of the third connection seat 5. A plurality of plug rods 45 are arranged circumferentially on the outer end face of the second connection seat 4, and the plug rods 45 are inserted into the first slots 54 of the third connection seat 5. When the second connection seat 4 is docked with the dust collecting pipe joint 12, the first pressing block 42 is first pressed to move the second clamping block 44 outward, and the second connection seat 4 is sleeved on the dust collecting pipe joint 12, and the first pressing block 42 can be released to achieve structural locking. At this time, the second connection seat 4 is tightly spliced ​​with the splicing surface 14; when the second connection seat 4 is docked with the third connection seat 5, the two are first aligned to ensure that the wedge-shaped end faces are parallel, and then the two can be axially plugged, so that the plug rod 45 is plugged and positioned with the first slot 54, and the wedge-shaped end faces are tightly spliced; when the structure is disassembled, the operation in reverse order of the above steps can be performed.

[0056] The working principle of a modular handheld vacuum cleaner that is easy to disassemble and assemble in the present embodiment includes: during assembly, the first connecting seat 3 is first inserted into the dust collecting pipe joint 12 under the guidance of the surface convex ribs and guide grooves, and the structure of the surface nuts of the two is locked by pins; thereafter, the second connecting seat 4 and the third connecting seat 5 can be docked first, and then assembled on the dust collecting pipe joint 12, or the second connecting seat 4 can be positioned on the dust collecting pipe joint 12 first, and then the third connecting seat 5 can be docked with other accessories. When disassembling, the above steps can be reversed, and the methods are diverse and the applicability is improved.

[0057] Embodiment 2:

[0058] See also Figure 3 , 8 On the basis of the above-mentioned embodiment 1, preferably, the air inlet pipe 2 is equipped with a sensor 21, and the inner and outer sides of the sensor 21 are respectively provided with probes connected to the inner cavity of the air inlet pipe 2 and the first mounting groove 11, a connecting port 634 connected to the first mounting groove 11 is opened at the bottom of the motor housing, and a through hole connecting the outside and the first mounting groove 11 is set on the surface of the vacuum cleaner handle 1.

[0059] The working principle of a modular, easily disassembled and assembled handheld vacuum cleaner of the present embodiment includes: the vacuum cleaner can perform real-time monitoring of the filtering efficiency, and synchronously monitor the parameters of the dust-laden airflow in the air inlet pipe 2 and the clean airflow discharged from the connecting port 634 and the first mounting groove 11 and filtered by the vacuum cleaner through the sensor probe 21, so as to provide feedback on the operation status of the vacuum cleaner and improve the visualization and controllability of the use of the vacuum cleaner.

[0060] Embodiment three:

[0061] See also Figure 5 On the basis of the above-mentioned embodiment 1, preferably, a second mounting groove 32 is provided at the bottom of the first connecting seat 3, a wiring seat 33 is arranged in the second mounting groove 32, a through hole 331 for docking the external wiring and the expansion tube on one side of the wiring tube 34 is provided on one side of the wiring seat 33, the inner side of the through hole 331 is docked with the positioning groove 332, the other side of the wiring tube 34 and the expansion tube docked with the internal wiring are arranged in the positioning groove 332, one side of the wiring seat 33 is connected to one side of the pressing plate 35 through a bending block 352, a limiting convex rib 351 is provided on the pressing plate 35, the notch on the limiting convex rib 351 and the positioning groove 332 together position the wiring tube 34, and the other side of the pressing plate 35 is clamped on the second clamping groove 333 on the other side of the wiring seat 33 through a first clamping hook 353.

[0062] The working principle of a modularized handheld vacuum cleaner that is easy to disassemble and assemble in this embodiment includes: when the gas-electric combined tube dust collecting tube 50 of the vacuum cleaner is docked, it is necessary to arrange the wiring seat 33 in the second installation groove 32 when the first connecting seat 3 is docked with the dust collecting tube joint 12, and after the internal wiring is docked through the expansion tube of the wiring tube 34, it is positioned in the positioning groove 332 and the perforation 331, and then the pressing plate 35 is flipped and covered on the positioning groove 332, and the wiring seat 33 is shaped and the wiring tube 34 is positioned through the first hook 353 and the second slot 333, and the modular assembly is completed. After that, the first connecting seat 3 can be docked with the dust collecting tube joint 12, so that the external wiring in the third connecting seat 5 and the dust collecting tube 50 is docked with the wiring tube 34, and the local circuit layout and docking of the vacuum cleaner are completed.

[0063] Embodiment 4:

[0064] See also Figure 7 , 8 On the basis of the above-mentioned embodiment 1, preferably, the motor housing is a cone structure with a plurality of spindle-shaped protrusion structures arranged circumferentially on the surface, an outer positioning ring 611 is arranged on the outer side of the motor frame 61, and the first U-shaped plug block 612 at the front end of the outer positioning ring 611 is plugged into the second slot 621 on the inner side of the edge of the front housing 62, and the first nut 613 on the outer positioning ring 611 is docked with the third nut 622 on the inner side of the edge of the front housing 62 and fixed by a pin.

[0065] The second U-shaped plug 614 at the rear end of the outer positioning ring 611 is plugged into the third slot 631 on the inner side of the edge of the rear shell 63, and the second nut 615 on the motor frame 61 is docked with the fourth nut 633 on the inner positioning plate 632 of the rear shell 63 and fixed by pins.

[0066] The working principle of a modular and easy-to-disassemble handheld vacuum cleaner of this embodiment includes: the motor housing is designed with a special shape to improve its structural strength and flow-conducting performance, and the multiple positioning of the motor frame 61 and the front housing 62 and the rear housing 63 further ensures the structural strength of the housing structure at the dust cup and the motor of the vacuum cleaner. When assembling the motor housing, first insert the front housing 62 into the motor frame 61 through the first U-shaped plug block 612 and the second slot 621, and position the two nuts on the two through pins; assemble the rear housing 63 into the motor frame 61 through the second U-shaped plug block 614 and the third slot 631, and then position the two nuts on the two through pins, thus completing the multiple positioning of the three axial plugging and pin locking.

[0067] Embodiment five:

[0068] See also Fig. 9 , 10On the basis of the above-mentioned embodiment 1, preferably, the stepped plug block 71 at the front end of the battery pack 7 is plugged and assembled inside the rear shell 63, and a positioning ring is extended on the outside thereof, and a second pressing block 72 is hinged inside the positioning ring, and an elastic member is arranged between the inner side of the second pressing block 72 and the stepped plug block 71, and a second hook 73 on one side of the second pressing block 72 is engaged with the second slot 635 on the inner wall of the rear shell 63.

[0069] The working principle of a modular handheld vacuum cleaner that is easy to disassemble and assemble in this embodiment includes: when the battery pack 7 is disassembled, the front end of the second pressing block 72 is pressed to make the second hook 73 flip inward and disengage from the second slot 635, and the battery pack 7 can be pulled out as a whole; when assembling, the same operation is performed to press the battery pack 7 into the rear shell body 63, and the elastic member at the rear end of the second pressing block 72 is used to apply a pre-tightening elastic force to flip the second hook 73 outward to achieve structural locking. At this time, the positioning ring and the charging port at the bottom of the battery pack 7 are both assembled in the notch on the rear side of the rear shell body 63, further improving the positioning strength of the battery pack 7.

[0070] Embodiment six:

[0071] See also Figure 2 , 6 On the basis of the above-mentioned embodiment 1, preferably, an L-shaped slot 15 is further provided at the bottom of the vacuum cleaner handle 1, and the accessory bracket 8 is connected to the L-shaped slot 15 through an elastic card block 82, and a positioning tube seat 81 for storing vacuum cleaner accessories is provided thereon.

[0072] The working principle of a modular handheld vacuum cleaner that is easy to disassemble and assemble in this embodiment includes: through the structural design of the L-shaped slot 15 and the elastic block 82, the accessory bracket 8 is easy to disassemble and assemble. After assembly, it is assembled at the bottom of the vacuum cleaner handle 1, and the pre-tightening elastic force applied by the elastic block 82 ensures the stable positioning of the structure; the positioning tube seat 81 can be used to socket and position the columnar structure on the vacuum cleaner accessory, and combined with the bayonet thereon, it can be used to clamp and position the first block 53 on the third connecting seat 5.

[0073] In summary, due to the adoption of the above technical solution, the modular and easy-to-assemble and disassemble handheld vacuum cleaner of this embodiment has the following beneficial effects compared with the prior art:

[0074] 1. The inlet of the handheld vacuum cleaner of the present invention is modularly docked with the third connecting seat of the dust collecting pipe through the first connecting seat and the second connecting seat arranged inside and outside, which ensures the assembly strength and the convenience of disassembly and assembly while making the assembly method diverse. During assembly, the first connecting seat is first assembled in the dust collecting pipe joint, and then the second connecting seat and the third connecting seat can be docked first, and then they are assembled on the dust collecting pipe joint. The second connecting seat can also be positioned on the dust collecting pipe joint first, and then the third connecting seat and other accessories can be docked. During disassembly, the above steps are performed in reverse order, and the methods are diverse and the applicability is improved.

[0075] 2. The vacuum cleaner can perform real-time monitoring of the filtering efficiency, and synchronously monitor the parameters of the dust-laden airflow in the air inlet duct and the clean airflow discharged from the connecting port and the first mounting groove and filtered by the vacuum cleaner through the sensor probe, so as to provide feedback on the operation of the vacuum cleaner and improve the visualization and controllability of the use of the vacuum cleaner; the wiring socket at the inlet of the vacuum cleaner is easy to assemble, and the circuit connection of the gas-electric combination tube type dust collecting tube is stable; the motor housing is designed with a special shape to improve its structural strength and flow conduction performance, and the multiple positioning of the motor frame and the front housing and the rear housing further ensures the structural strength of the housing structure at the dust cup and the motor on the vacuum cleaner.

[0076] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A modular handheld vacuum cleaner that is easy to assemble and disassemble, characterized in that: include: A vacuum cleaner handle, wherein an air inlet pipe is embedded in a first mounting groove thereof, and a front end of the air inlet pipe is sealed and docked with a dust collecting pipe joint; A connecting assembly, wherein a third connecting seat equipped with a dust collecting pipe is provided inside the connecting assembly, and the connecting assembly comprises a first connecting seat axially inserted and positioned in the dust collecting pipe joint, and a second connecting seat sleeved and positioned outside the dust collecting pipe joint, an insert tube axially extending from an inner cavity on one side of the third connecting seat, the insert tube is inserted in the first connecting seat, and an outer edge on one side of the third connecting seat sleeves on the outside of the dust collecting pipe joint and the first connecting seat and is spliced ​​with an outer end surface of the second connecting seat; The vacuum cleaner main unit is docked with the dust cup and sealed together with it on the top of the vacuum cleaner handle, and comprises a motor, a motor housing and a battery pack, wherein the motor housing comprises a motor frame, a front housing and a rear housing.

2. A modular and easily disassembled handheld vacuum cleaner according to claim 1, characterized in that: The air inlet pipe is equipped with a sensor, and the inner and outer sides of the sensor are respectively provided with probes connected to the inner cavity of the air inlet pipe and the first mounting groove. The bottom of the motor housing is provided with a connecting port connected to the first mounting groove, and the surface of the vacuum cleaner handle is provided with a through hole connecting the outside world and the first mounting groove.

3. A modular and easily disassembled handheld vacuum cleaner according to claim 1, characterized in that: A spring block is arranged at the notch on the insert tube, and a plurality of first clamping blocks are arranged on the outer side of the spring block. The first clamping blocks are correspondingly clamped on the clamping ports of the first connecting seat.

4. A modular and easily disassembled handheld vacuum cleaner according to claim 1, characterized in that: A second mounting groove is provided at the bottom of the first connecting seat, a wiring seat is arranged in the second mounting groove, a through hole for docking the external wiring and the expansion tube on one side of the wiring tube is provided on one side of the wiring seat, the inner side of the through hole is docked with the positioning groove, the other side of the wiring tube and the expansion tube docked with the internal wiring are arranged in the positioning groove, one side of the wiring seat is connected to one side of the pressing plate through a bending block, a limiting convex rib is provided on the pressing plate, the notch on the limiting rib and the positioning groove together position the wiring tube, and the other side of the pressing plate is clamped on the second clamping groove on the other side of the wiring seat through a first clamping hook.

5. The modular and easily disassembled handheld vacuum cleaner according to claim 1, characterized in that: A cross-shaped button is arranged at the notch on the surface of the second connecting seat, a first pressing block is arranged on one side of the cross-shaped button, and a second clamping block inside the connecting block on the other side is clamped on the first clamping groove on the surface of the dust collecting pipe joint.

6. The modular and easily disassembled handheld vacuum cleaner according to claim 1, characterized in that: The end faces on both sides of the second connecting seat are both wedge-shaped surfaces, which are respectively spliced ​​with the splicing surface extending outward from the surface of the vacuum cleaner handle and the inner end face of the third connecting seat. A plurality of insertion rods are circumferentially arranged on the outer end face of the second connecting seat, and the insertion rods are inserted into the first slot of the third connecting seat.

7. A modular and easily disassembled handheld vacuum cleaner according to claim 1, characterized in that: The motor housing is a cone structure with a plurality of spindle-shaped protrusions arranged circumferentially on the surface. An outer positioning ring is arranged on the outer side of the motor frame. The first U-shaped plug at the front end of the outer positioning ring is inserted into the second slot on the inner side of the edge of the front housing. The first nut on the outer positioning ring is connected to the third nut on the inner side of the edge of the front housing and is fixed by a pin.

8. A modular and easily disassembled handheld vacuum cleaner according to claim 7, characterized in that: The second U-shaped plug at the rear end of the outer positioning ring is plugged into the third slot inside the edge of the rear shell body, and the second nut on the motor frame is docked with the fourth nut on the inner positioning plate of the rear shell body and fixed by pins.

9. The modular and easily disassembled handheld vacuum cleaner according to claim 1, characterized in that: The stepped plug-in block at the front end of the battery pack is plugged into the interior of the rear shell, a positioning ring is extended on the outside thereof, a second pressing block is hinged inside the positioning ring, an elastic member is arranged between the inner side of the second pressing block and the stepped plug-in block, and a second hook on one side of the second pressing block is engaged with the second slot on the inner wall of the rear shell.

10. The modular and easily disassembled handheld vacuum cleaner according to claim 1, characterized in that: An L-shaped slot is also provided at the bottom of the vacuum cleaner handle, and the accessory bracket is connected to the L-shaped slot through an elastic clamping block, on which a positioning pipe seat for storing vacuum cleaner accessories is provided.

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