Dust-cleaning reset interlocking structure of a dust collector

Abstract

The utility model discloses a dusting reset interlock structure of dust collector. It includes: the organism, is provided with dust extraction fan on the organism, filter cartridge, the opening part of filter cartridge is connected with the organism, the inside of filter cartridge and dust extraction fan intercommunication, is provided with the ventilation mesh hole area on the lateral wall of filter cartridge, dust cup, dust cup sets up on the organism and is located the outside of filter cartridge, is provided with dust collection space between dust cup and filter cartridge, dusting assembly, dusting assembly includes dusting slide cover, dusting slide cover sets up in dust collection space, when dusting slide cover in dust collection space is in the end position of the one end close to the organism, dusting slide cover will not stop ventilation mesh hole area, in position detection switch, in position detection switch sets up on the organism, in position detection switch and dusting assembly are relatively set up, and in position detection switch and dust extraction fan are electrically connected. The utility model has the beneficial effect that can guarantee good dust extraction efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum cleaners, and in particular to a dust removal and reset interlocking structure for a vacuum cleaner. Background Technology

[0002] Vacuum cleaners typically consist of multiple functional units, including an airflow generating unit, a filtration unit, and a dust collection unit. After the airflow generating unit draws in air, the air carrying dirt is filtered by the filtration unit, allowing the filtered air to be discharged back into the atmosphere, while the dust and other debris generated during filtration remain in the vacuum cleaner.

[0003] When a vacuum cleaner is in use, dust and other solid dirt easily remain on the filter cartridge and dust cup, leading to a decrease in filtration efficiency. Chinese Patent Publication No. CN214965077U, published on December 3, 2021, discloses a dust-cleaning structure for a vacuum cleaner, including: a wiping component that can move axially along the filter cartridge within the dust cup housing; and a driving component extending from the end of the dust cup housing; the driving component connects to the wiping component to transmit external driving force to the dust cup housing; when the wiping component moves relative to the filter cartridge, it scrapes off the deposits on the outer wall of the filter cartridge. The drawback of this patent is that when the vacuuming function is activated without the wiping component resetting, the wiping component will block part of the filter holes on the filter cartridge, significantly affecting vacuuming efficiency.

[0004] In summary, there is a need for a dust removal and reset interlocking structure for vacuum cleaners that can guarantee good dust removal efficiency. Utility Model Content

[0005] This invention aims to overcome the shortcomings of existing technologies where, when the wiping component is not reset before activating the vacuuming function, the wiping component will block part of the filter holes on the filter cartridge, greatly affecting the vacuuming efficiency. It provides a dust removal and reset interlocking structure for a vacuum cleaner that can ensure good vacuuming efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A dust removal and reset interlock structure for a vacuum cleaner includes: The machine body is equipped with a dust-collecting fan. The filter cartridge has an opening connected to the body, and its inner side is connected to the vacuum cleaner fan. The side wall of the filter cartridge has a ventilation mesh area. A dust cup is disposed on the body and located outside the filter cartridge, and a dust collection space is provided between the dust cup and the filter cartridge; The dust removal assembly includes a dust removal sliding sleeve, which is disposed in and movably connected to the dust collection space. The inner wall of the dust removal sliding sleeve is in contact with the outer wall of the filter cartridge, and the outer wall of the dust removal sliding sleeve is in contact with the inner wall of the dust cup. When the dust removal sliding sleeve in the dust collection space is at the end position near one end of the machine body, the dust removal sliding sleeve will not block the ventilation mesh area. An in-situ detection switch is mounted on the machine body and is positioned opposite to the dust removal assembly. The in-situ detection switch is electrically connected to the vacuum cleaner fan. When the dust removal sleeve in the dust collection space is at the end position near one end of the machine body, i.e., when the vacuum cleaner is not in the dust removal state, the dust removal assembly and the in-situ detection switch abut against each other, energizing the vacuum cleaner fan. When the dust removal sleeve in the dust collection space is not at the end position near one end of the machine body, i.e., when the vacuum cleaner is in the dust removal state, the dust removal assembly and the in-situ detection switch separate, de-energizing the vacuum cleaner fan.

[0007] This invention utilizes an external driving force to propel the dust-scraping component, causing the dust-scraping sliding sleeve in the dust collection space to move axially relative to the filter cartridge and dust cup. This scrapes off deposits from the outer wall of the filter cartridge and the inner wall of the dust cup, simultaneously cleaning both the dust cup and the filter cartridge. This prevents blockage of the ventilation mesh area on the filter cartridge, improves airflow, reduces suction loss, and protects the motor. The design of the in-position detection switch ensures that the vacuum cleaner's fan can only be powered on when the dust-scraping sliding sleeve in the dust collection space is returned to its position near the end of the machine body (i.e., when the dust-scraping sliding sleeve is not blocking the ventilation mesh area). This effectively prevents the vacuuming function from being affected by the dust-scraping sliding sleeve not being returned to its original position, thus guaranteeing good vacuuming efficiency. Preferably, the main body includes an outer casing and an inner casing. The dust extraction fan is connected to the filter cartridge through the inner side of the inner casing. The outer casing is fixed to the outer side of the inner casing. A push plate groove is provided between the outer casing and the inner casing. The dust removal assembly also includes a dust removal push plate, which is placed in and slidably connected to the push plate groove. The dust removal push plate and the dust removal sleeve are fixedly connected. When the dust removal push plate moves in the push plate groove, it will drive the dust removal sleeve to move synchronously in the dust collection space. When removing dust, the user can push the dust removal push plate in the push plate groove to drive the dust removal sleeve to perform dust removal operation in the dust collection space. The operation is simple and the control is convenient.

[0008] Preferably, the dust-removing push plate and the dust-removing sliding sleeve are fixedly connected by a dust-removing connecting rod. A connecting rod guide hole matching the dust-removing connecting rod is provided between the push plate slide groove and the dust collection space. The connecting rod guide holes between the push plate slide groove and the dust collection space are interconnected. The dust-removing connecting rod is placed in the connecting rod guide hole and movably connected to it. A push plate return spring is provided in the push plate slide groove. After the vacuum cleaner finishes dust removal, the dust-removing push plate will automatically return to the end of the push plate slide groove away from the filter cartridge under the elastic force of the push plate return spring. The dust-removing push plate and the dust-removing sliding sleeve are connected by the dust-removing connecting rod, thus achieving synchronous movement. The structure is simple and easy to control. The push plate return spring can automatically reset the dust-removing push plate, thereby causing the dust-removing sliding sleeve to synchronously reset to the end position closer to the machine body.

[0009] Preferably, a limiting block is fixed to the dust removal push plate, and a matching abutment groove is provided on the groove wall of the push plate slide. The limiting block is placed in the abutment groove and slidably connected to it. The on-site detection switch is located on the end wall of the abutment groove away from the filter cartridge. When the dust removal sleeve in the dust collection space is at the end position close to the machine body, the limiting block on the dust removal push plate is also at the end position of the abutment groove and abuts against the on-site detection switch, energizing the vacuum fan. When the dust removal sleeve in the dust collection space is not at the end position close to the machine body, the limiting block on the dust removal push plate separates from the on-site detection switch, de-energizing the vacuum fan. The design of the limiting block and the abutment groove guides the movement of the dust removal push plate within the push plate slide groove. By abutting against the on-site detection switch with the limiting block and pressing the button on the on-site detection switch, the vacuum fan is turned on. The structure is simple and the control is convenient.

[0010] Preferably, the side wall of the limiting block is fixed with a locking groove, and the side wall of the block slide groove is provided with a locking body that matches the locking groove. The locking body and the locking groove are interlocked. The locking body is located on the side wall of the block slide groove away from the filter cartridge. When the locking groove on the limiting block is interlocked with the locking body on the block slide groove, the limiting block on the dust removal push plate also simultaneously abuts against the in-position detection switch. When the dust removal push plate in the push plate slide groove returns to the end away from the filter cartridge, the snap-fit ​​design of the locking groove and the locking body improves the structural stability of the dust removal push plate at the reset point, and also simultaneously improves the stability of the dust removal slide sleeve in the dust collection space at the end position near the machine body.

[0011] Preferably, a ash-removing pusher is fixed to the ash-removing pusher plate, and a pusher groove matching the ash-removing pusher is provided on the outer casing. The ash-removing pusher passes through the pusher groove and is located outside the outer casing. The ash-removing pusher and the pusher groove are movably connected. The user can drive the ash-removing pusher plate to move within the pusher groove by pushing the ash-removing pusher, which is simple to operate and convenient to control.

[0012] Preferably, a cleaning brush strip is fixed on the dust removal sleeve, with the inner wall of the cleaning brush strip contacting the outer wall of the filter cartridge and the outer wall of the cleaning brush strip contacting the inner wall of the dust cup. The dust removal sleeve cleans both the filter cartridge and the dust cup simultaneously using the cleaning brush strip, improving cleaning efficiency.

[0013] Preferably, the bottom of the filter cartridge and the port of the dust cup together form a floor brush mounting groove. A notch is provided on the side wall of the filter cartridge near one end of the machine body. A limiting cam is installed at the notch, and the limiting cam is rotatably connected to the filter cartridge. A limiting stop is fixed to the edge of the limiting cam. A limiting push rod is provided on the side wall of the filter cartridge, and the limiting push rod is movably connected to the filter cartridge. One end of the limiting push rod penetrates the bottom of the filter cartridge and protrudes outside the bottom of the filter cartridge. When dust is collected... When the dust-collecting slide sleeve in the dust collection space is not at the end position near one end of the machine body, i.e., when the vacuum cleaner is in dust-collecting mode, the other end of the limiting push rod and the limiting block are positioned opposite each other. The limiting block obstructs the retraction of the limiting push rod, preventing the portion of the limiting push rod exposed outside the bottom of the filter cartridge from retracting. At this time, the external floor brush cannot be installed in the floor brush mounting slot. The dust-collecting slide sleeve is equipped with a cam drive mechanism. When the dust-collecting slide sleeve in the dust collection space moves to the end position near one end of the machine body, i.e., when vacuuming... When the dust removal process ends, the cam drive mechanism on the dust removal sleeve will push the limit cam to rotate, disengaging the other end of the limit push rod from the limit stop, thus allowing space for the limit push rod to retract. At this time, the external floor brush can be installed into the floor brush mounting slot, and the exposed part of the limit push rod can also retract as the external floor brush is installed. The side wall of the filter cartridge is equipped with a push rod return spring. When the external floor brush is removed from the floor brush mounting slot, the limit push rod will retract under the elastic force of the push rod return spring. The limit push rod is positioned so that the other end of the limit push rod is exposed outside the bottom of the filter cartridge again. A cam return torsion spring is provided at the connection between the limit cam and the filter cartridge. When the dust-collecting slide sleeve in the dust collection space moves away from the end position near one end of the machine body, that is, when the vacuum cleaner re-enters the dust-collecting state, the cam drive mechanism separates from the limit cam. The limit cam will rotate back to its original position under the torque of the cam return to the original position, so that the other end of the limit push rod and the limit stop block return to their relative positions, thus hindering the retraction of the limit push rod. This utility model adopts a dual-layer protection of electronic control and mechanical means to ensure that the vacuum cleaner can only work and the external floor brush can only be connected when the dust-collecting components (dust-collecting slide sleeve and dust-collecting push plate) are reset, thus preventing a decrease in vacuuming efficiency due to the dust-collecting slide sleeve not being reset.

[0014] Preferably, a top block is fixed to the edge of the limiting cam, and the top block is located within the dust collection space. The cam drive mechanism includes a push block fixed to the dust-collecting slide sleeve. The push block and the top block are arranged opposite to each other. When the dust-collecting slide sleeve in the dust collection space moves to the end position near one end of the machine body, that is, when the vacuum cleaner finishes dust-collecting, the push block on the dust-collecting slide sleeve will contact and push the top block on the limiting cam, thereby causing the limiting cam to rotate. This design offers a high degree of automation and more convenient control.

[0015] Preferably, a soft rubber valve is installed at the end of the dust collection space furthest from the main body. The soft rubber valve is rotatably connected to the dust collection space. A matching push rod is fixed to the dust-collecting sleeve. When the dust-collecting sleeve in the dust collection space moves to the end furthest from the main body, the push rod pushes the soft rubber valve outward, pushing dirt out of the dust collection space. When the vacuum cleaner is in vacuuming mode, the negative pressure generated by the vacuum fan opens the soft rubber valve inward, drawing dirt into the dust collection space. Dirt can be directly pushed out of the dust cup, avoiding direct contact between the user and the dirt, reducing the frequency of dust cup cleaning, and improving the user experience.

[0016] The beneficial effects of this utility model are: it prevents the ventilation mesh area on the filter cartridge from becoming clogged, improves airflow, reduces suction loss, and protects the motor; it avoids the situation where starting the vacuuming function without resetting the dust removal sleeve affects vacuuming efficiency, ensuring good vacuuming efficiency; it is simple to operate and easy to control; it improves stability; the vacuum cleaner can only work and the external brush can only be engaged when the dust removal component is reset, preventing a decrease in vacuuming efficiency due to the dust removal sleeve not resetting; it avoids direct contact between the user and dirt, and reduces the number of times the user cleans the dust cup, improving the user experience. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the dust cup in this utility model; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the internal structure of the body in this utility model; Figure 5 yes Figure 4 Enlarged view of point B in the middle; Figure 6 This is the front view of this utility model; Figure 7 yes Figure 6 Sectional view at CC; Figure 8 yes Figure 7 Enlarged view of point D in the middle; Figure 9 yes Figure 7 Enlarged view of point E in the middle.

[0018] In the diagram: 1. Main body, 2. Dust collector fan, 3. Filter cartridge, 4. Ventilation mesh area, 5. Dust cup, 6. Dust collection space, 7. Dust removal sliding sleeve, 8. In-position detection switch, 9. Outer casing, 10. Inner casing, 11. Push plate groove, 12. Dust removal push plate, 13. Dust removal connecting rod, 14. Connecting rod guide hole, 15. Push plate return spring, 16. Limiting block, 17. Block groove, 18. Clip groove, 19. Clip body, 20. Dust removal push handle, 21. Push handle groove, 22. Cleaning brush strip, 23. Floor brush mounting groove, 24. Notch, 25. Limiting cam, 26. Limiting stop, 27. Limiting push rod, 28. Push rod return spring, 29. Cam return torsion spring, 30. Top block, 31. 32. Push block; 33. Soft rubber valve; 34. Top rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1-9 In the embodiments described above, a dust removal and reset interlocking structure for a vacuum cleaner includes: The main body 1 is equipped with a dust extraction fan 2. The filter cartridge 3 has its opening fixedly connected to the body 1, and its inner side is connected to the dust collector 2. The side wall of the filter cartridge 3 is provided with a ventilation mesh area 4. Dust cup 5 is snapped onto the body 1 and located on the outside of the filter cartridge 3. A dust collection space 6 is provided between the dust cup 5 and the filter cartridge 3. The dust removal component includes a dust removal sliding sleeve 7, which is disposed in and movably connected to the dust collection space 6. The inner wall of the dust removal sliding sleeve 7 is in contact with the outer wall of the filter cartridge 3, and the outer wall of the dust removal sliding sleeve 7 is in contact with the inner wall of the dust cup 5. When the dust removal sliding sleeve 7 in the dust collection space 6 is at the end position close to one end of the body 1, the dust removal sliding sleeve 7 will not block the ventilation mesh area 4. The presence detection switch 8 is located on the body 1 and is positioned opposite to the dust removal assembly. The presence detection switch 8 is electrically connected to the vacuum cleaner 2. When the dust removal sleeve 7 in the dust collection space 6 is at the end position near one end of the body 1, i.e., when the vacuum cleaner is not in the dust removal state, the dust removal assembly and the presence detection switch 8 abut against each other, energizing the vacuum cleaner 2. When the dust removal sleeve 7 in the dust collection space 6 is not at the end position near one end of the body 1, i.e., when the vacuum cleaner is in the dust removal state, the dust removal assembly and the presence detection switch 8 separate, de-energizing the vacuum cleaner 2.

[0021] like Figure 4 and Figure 5 As shown, the body 1 includes an outer casing 9 and an inner casing 10. The dust extraction fan 2 is connected to the filter cartridge 3 through the inner side of the inner casing 10. The outer casing 9 is fixed to the outer side of the inner casing 10. A push plate groove 11 is provided between the outer casing 9 and the inner casing 10. The dust removal assembly also includes a dust removal push plate 12. The dust removal push plate 12 is placed in the push plate groove 11 and slidably connected to it. The dust removal push plate 12 and the dust removal sleeve 7 are fixedly connected. When the dust removal push plate 12 moves in the push plate groove 11, it will drive the dust removal sleeve 7 to move synchronously in the dust collection space 6.

[0022] The dust removal push plate 12 and the dust removal sliding sleeve 7 are fixedly connected by the dust removal connecting rod 13. The push plate slide groove 11 and the dust collection space 6 are provided with a connecting rod guide hole 14 that matches the dust removal connecting rod 13. The connecting rod guide hole 14 between the push plate slide groove 11 and the dust collection space 6 are interconnected. The dust removal connecting rod 13 is placed in the connecting rod guide hole 14 and is movably connected to it. The push plate slide groove 11 is provided with a push plate return spring 15. When the vacuum cleaner finishes dust removal, the dust removal push plate 12 will automatically return to the end of the push plate slide groove 11 away from the filter cartridge 3 under the elastic force of the push plate return spring 15.

[0023] like Figure 6 , Figure 7 and Figure 8 As shown, a limiting block 16 is fixed on the dust removal push plate 12. A block groove 17 matching the limiting block 16 is provided on the groove wall of the push plate groove 11. The limiting block 16 is placed in the block groove 17 and slidably connected to it. The position detection switch 8 is located on the end wall of the block groove 17 away from the filter cartridge 3. When the dust removal sleeve 7 in the dust collection space 6 is at the end position close to the end of the machine body 1, the limiting block 16 on the dust removal push plate 12 is also at the end position of the block groove 17 and abuts against the position detection switch 8, so that the dust collector 2 is powered on. When the dust removal sleeve 7 in the dust collection space 6 is not at the end position close to the end of the machine body 1, the limiting block 16 on the dust removal push plate 12 is separated from the position detection switch 8, so that the dust collector 2 is powered off.

[0024] A locking groove 18 is fixed on the side wall of the limiting block 16, and a locking body 19 matching the locking groove 18 is provided on the side wall of the block slide 17. The locking body 19 and the locking groove 18 are locked together. The locking body 19 is located on the side wall of the block slide 17 away from the filter cartridge 3. When the locking groove 18 on the limiting block 16 is locked with the locking body 19 on the block slide 17, the limiting block 16 on the dust removal push plate 12 is also locked with the in-position detection switch 8 at the same time.

[0025] A ash removal pusher 20 is fixed on the ash removal pusher plate 12. The outer casing 9 is provided with a pusher slide groove 21 that matches the ash removal pusher 20. The ash removal pusher 20 passes through the pusher slide groove 21 and is located outside the outer casing 9. The ash removal pusher 20 and the pusher slide groove 21 are movably connected.

[0026] like Figure 6 , Figure 7 and Figure 9 As shown, a cleaning brush strip 22 is fixed on the dust removal sleeve 7. The inner wall of the cleaning brush strip 22 is in contact with the outer wall of the filter cartridge 3, and the outer wall of the cleaning brush strip 22 is in contact with the inner wall of the dust cup 5.

[0027] The bottom of the filter cartridge 3 and the port of the dust cup 5 together form the floor brush mounting groove 23. A notch 24 is provided on the side wall of the filter cartridge 3 near the end of the machine body 1. A limiting cam 25 is installed at the notch 24. The limiting cam 25 is rotatably connected to the filter cartridge 3. A limiting stop 26 is fixed to the edge of the limiting cam 25. A limiting push rod 27 is provided on the side wall of the filter cartridge 3. The limiting push rod 27 is movably connected to the filter cartridge 3. One end of the limiting push rod 27 passes through the bottom of the filter cartridge 3 and protrudes outside the bottom of the filter cartridge 3. When the dust collection space 6 is filled with dust-removing sliding sleeve 7... When the vacuum cleaner is not in the end position near one end of the body 1, i.e., in the dust-removing state, the other end of the limiting push rod 27 and the limiting block 26 are positioned opposite each other. The limiting block 26 obstructs the retraction of the limiting push rod 27, preventing the portion of the limiting push rod 27 exposed outside the bottom of the filter cartridge 3 from retracting. At this time, the external floor brush cannot be installed into the floor brush mounting slot 23. The dust-removing sliding sleeve 7 is equipped with a cam drive mechanism. When the dust-removing sliding sleeve 7 in the dust collection space 6 moves to the end position near one end of the body 1, i.e., when the vacuum cleaner ends the dust-removing state... The cam drive mechanism on the dust removal sleeve 7 will push the limiting cam 25 to rotate, displacing the other end of the limiting push rod 27 from the limiting stop 26, leaving space for the limiting push rod 27 to retract. At this time, the external floor brush can be installed into the floor brush mounting slot 23, and the exposed part of the limiting push rod 27 can also retract as the external floor brush is installed. The side wall of the filter cartridge 3 is provided with a push rod return spring 28. When the external floor brush is removed from the floor brush mounting slot 23, the limiting push rod 27 will move back to its original position under the elastic force of the push rod return spring 28, so that the limiting cam 27 is retracted. The other end of the push rod 27 re-exposes outside the bottom of the filter cartridge 3. A cam return torsion spring 29 is provided at the connection between the limiting cam 25 and the filter cartridge 3. When the dust removal sleeve 7 in the dust collection space 6 leaves the end position near the end of the body 1, that is, when the vacuum cleaner re-enters the dust removal state, the cam drive mechanism separates from the limiting cam 25. The limiting cam 25 will rotate back to its original position under the torque of the cam return torsion spring 29, so that the other end of the limiting push rod 27 and the limiting stop 26 return to the opposite state, thus hindering the retraction of the limiting push rod 27.

[0028] A top block 30 is also fixed at the edge of the limiting cam 25. The top block 30 is located in the dust collection space 6. The cam drive mechanism includes a push block 31 fixed on the dust removal sleeve 7. The push block 31 and the top block 30 are arranged opposite to each other. When the dust removal sleeve 7 in the dust collection space 6 moves to the end position near one end of the body 1, that is, when the vacuum cleaner ends the dust removal state, the push block 31 on the dust removal sleeve 7 will contact the top block 30 on the limiting cam 25 and push it, thereby causing the limiting cam 25 to rotate.

[0029] A soft rubber valve 32 is provided at the end of the dust collection space 6 away from the body 1. The soft rubber valve 32 is rotatably connected to the dust collection space 6. A top rod 33 matching the soft rubber valve 32 is fixed on the dust removal sleeve 7. When the dust removal sleeve 7 in the dust collection space 6 moves to the end away from the body 1, the top rod 33 will push the soft rubber valve 32 outward to push the dirt out of the dust collection space 6. When the vacuum cleaner is in the vacuuming state, the negative pressure generated by the vacuum fan 2 will open the soft rubber valve 32 inward to suck the dirt into the dust collection space 6.

[0030] When removing dust, the user pushes the dust removal push handle 20 on the outside of the machine body 1 to move the dust removal push plate 12 in the push plate slide groove 11, and simultaneously moves the dust removal slide sleeve 7 in the dust collection space 6. The cleaning brush strip 22 on it cleans the filter cartridge 3 and dust cup 5 at the same time. On the one hand, it prevents the ventilation mesh area 4 on the filter cartridge 3 from becoming blocked, and on the other hand, it can directly push out the dirt in the dust cup 5, avoiding direct contact between the user and the dirt, and reducing the number of times the user cleans the dust cup.

[0031] During the dust removal process: the dust removal push plate 12 in the push plate slide 11 is not at the end position away from the filter cartridge. At this time, the limiting block 16 on the dust removal push plate 12 and the position detection switch 8 at the end of the block slide 17 are separated from each other, causing the dust collector fan 2 to be de-energized and thus unable to perform dust removal work. At the same time, the dust removal sleeve 7 in the dust collection space 6 is also not at the end position close to the body 1 (blocking the ventilation mesh area 4). At this time, the other end of the limiting push rod 27 and the limiting stop 26 on the limiting cam 25 are set opposite to each other. The limiting stop 26 will hinder the retraction of the limiting push rod 27, so that the part of the limiting push rod 27 exposed outside the bottom of the filter cartridge 3 cannot retract. At this time, the external floor brush cannot be installed in the floor brush mounting groove 23.

[0032] When dust removal ends: the dust removal push plate 12 in the push plate slide 11 returns to the end position away from the filter cartridge 3. At this time, the limiting block 16 on the dust removal push plate 12 abuts against the in-position detection switch 8, energizing the dust collector 2 so that it can perform dust removal work. At the same time, the dust removal sleeve 7 in the dust collection space 6 also returns to the end position close to the body 1 (no longer blocking the ventilation mesh area 4). The push block 31 on the dust removal sleeve 7 will contact the top block 30 on the limiting cam 25 and push it, causing the limiting cam 25 to rotate, so that the other end of the limiting push rod 27 is offset from the limiting block 26, leaving space for the limiting push rod 27 to retract. At this time, the external floor brush can be installed into the floor brush mounting slot 23, and the exposed part of the limiting push rod 27 can also retract as the external floor brush is installed.

[0033] This utility model adopts a dual-layer protection of electronic control and mechanical protection, ensuring that the vacuum cleaner can only work and the external floor brush can only be connected when the dust removal component (dust removal sliding sleeve 7 and dust removal push plate 12) is reset, thus preventing the dust removal efficiency from decreasing due to the dust removal sliding sleeve 7 not being reset.

Claims

1. A dust removal and reset interlock structure for a vacuum cleaner, characterized in that, include: The machine body (1) is equipped with a dust extraction fan (2); The filter cartridge (3) has an opening that is connected to the body (1), and the inner side of the filter cartridge (3) is connected to the dust collector (2). A ventilation mesh area (4) is provided on the side wall of the filter cartridge (3). Dust cup (5), the dust cup (5) is disposed on the body (1) and located outside the filter cartridge (3), and a dust collection space (6) is provided between the dust cup (5) and the filter cartridge (3). The dust removal assembly includes a dust removal sliding sleeve (7), which is disposed in and movably connected to the dust collection space (6). The inner wall of the dust removal sliding sleeve (7) is in contact with the outer wall of the filter cartridge (3), and the outer wall of the dust removal sliding sleeve (7) is in contact with the inner wall of the dust cup (5). When the dust removal sliding sleeve (7) in the dust collection space (6) is at the end position close to one end of the machine body (1), the dust removal sliding sleeve (7) will not block the ventilation mesh area (4). The presence detection switch (8) is located on the body (1). The presence detection switch (8) and the dust removal assembly are arranged opposite to each other. The presence detection switch (8) and the vacuum cleaner (2) are electrically connected. When the dust removal sleeve (7) in the dust collection space (6) is at the end position close to one end of the body (1), that is, when the vacuum cleaner is not in the dust removal state, the dust removal assembly and the presence detection switch (8) abut against each other, so that the vacuum cleaner (2) is powered on. When the dust removal sleeve (7) in the dust collection space (6) is not at the end position close to one end of the body (1), that is, when the vacuum cleaner is in the dust removal state, the dust removal assembly and the presence detection switch (8) separate from each other, so that the vacuum cleaner (2) is powered off.

2. The dust removal and reset interlock structure for a vacuum cleaner according to claim 1, characterized in that, The body (1) includes an outer casing (9) and an inner casing (10). The dust collector (2) is connected to the filter cartridge (3) through the inner side of the inner casing (10). The outer casing (9) is fixed to the outer side of the inner casing (10). A push plate groove (11) is provided between the outer casing (9) and the inner casing (10). The dust removal assembly also includes a dust removal push plate (12). The dust removal push plate (12) is placed in the push plate groove (11) and slidably connected to it. The dust removal push plate (12) and the dust removal sleeve (7) are fixedly connected. When the dust removal push plate (12) moves in the push plate groove (11), it will drive the dust removal sleeve (7) to move synchronously in the dust collection space (6).

3. The dust removal and reset interlocking structure for a vacuum cleaner according to claim 2, characterized in that, The dust removal push plate (12) and the dust removal sleeve (7) are fixedly connected by a dust removal connecting rod (13). The push plate groove (11) and the dust collection space (6) are provided with a connecting rod guide hole (14) that matches the dust removal connecting rod (13). The connecting rod guide hole (14) between the push plate groove (11) and the dust collection space (6) are interconnected. The dust removal connecting rod (13) is placed in the connecting rod guide hole (14) and is movably connected to it. The push plate groove (11) is provided with a push plate return spring (15). When the vacuum cleaner finishes dust removal, the dust removal push plate (12) will automatically return to the end of the push plate groove (11) away from the filter cartridge (3) under the elastic force of the push plate return spring (15).

4. The dust removal and reset interlock structure for a vacuum cleaner according to claim 2, characterized in that, The dust removal push plate (12) is fixed with a limiting block (16), and the push plate slide groove (11) is provided with a block slide groove (17) that matches the limiting block (16). The limiting block (16) is placed in the block slide groove (17) and slidably connected to it. The in-position detection switch (8) is located on the end wall of the block slide groove (17) away from the filter cartridge (3). When the dust removal sleeve (7) in the dust collection space (6) is close to the machine body (1), the limit block (16) is fixed on the limit block slide groove (17). When the dust removal push plate (12) is at the end position, the limiting block (16) on the dust removal push plate (12) is also at the end position of the block groove (17) and abuts against the in-position detection switch (8), so that the dust removal fan (2) is powered on. When the dust removal slide sleeve (7) in the dust collection space (6) is not at the end position near the end of the body (1), the limiting block (16) on the dust removal push plate (12) separates from the in-position detection switch (8), so that the dust removal fan (2) is powered off.

5. The dust removal and reset interlock structure for a vacuum cleaner according to claim 4, characterized in that, The side wall of the limiting block (16) is fixed with a fastening groove (18), and the side wall of the block slide (17) is provided with a fastening body (19) that matches the fastening groove (18). The fastening body (19) and the fastening groove (18) are fastened to each other. The fastening body (19) is located on the side wall of the block slide (17) away from the filter cylinder (3). When the fastening groove (18) on the limiting block (16) is fastened to the fastening body (19) on the block slide (17), the limiting block (16) on the ash push plate (12) also abuts against the in-position detection switch (8) at the same time.

6. The dust removal and reset interlocking structure for a vacuum cleaner according to claim 2, characterized in that, The ash removal push plate (12) is fixed with an ash removal push handle (20), and the outer casing (9) is provided with a push handle groove (21) that matches the ash removal push handle (20). The ash removal push handle (20) passes through the push handle groove (21) and is located outside the outer casing (9). The ash removal push handle (20) and the push handle groove (21) are movably connected.

7. A dust removal and reset interlocking structure for a vacuum cleaner according to any one of claims 1-6, characterized in that, A cleaning brush strip (22) is fixed on the dust removal sleeve (7). The inner wall of the cleaning brush strip (22) is in contact with the outer wall of the filter cartridge (3), and the outer wall of the cleaning brush strip (22) is in contact with the inner wall of the dust cup (5).

8. A dust removal and reset interlocking structure for a vacuum cleaner according to any one of claims 1-6, characterized in that, The bottom of the filter cartridge (3) and the port of the dust cup (5) together form a floor brush mounting groove (23). A notch (24) is provided on the side wall of the filter cartridge (3) near the end of the machine body (1). A limiting cam (25) is installed at the notch (24). The limiting cam (25) and the filter cartridge (3) are rotatably connected. A limiting stop (26) is fixed at the edge of the limiting cam (25). A limiting push rod (27) is provided on the side wall of the filter cartridge (3). The limiting push rod (27) and the filter cartridge (3) are movably connected. One end of the limiting push rod (27) passes through the bottom of the filter cartridge (3) and protrudes from the bottom of the filter cartridge (3). When the dust-collecting sleeve (7) in the dust collection space (6) is not at the end position close to the body (1), that is, when the vacuum cleaner is in the dust-collecting state, the other end of the limiting push rod (27) and the limiting block (26) are set opposite to each other. The limiting block (26) hinders the retraction of the limiting push rod (27), so that the part of the limiting push rod (27) exposed outside the bottom of the filter cartridge (3) cannot retract. At this time, the external floor brush cannot be installed in the floor brush mounting groove (23). The dust-collecting sleeve (7) is provided with a cam drive mechanism. When the dust-collecting sleeve (7) in the dust collection space (6) moves to the end position close to the body (1), When the vacuum cleaner finishes its dust-collecting state, the cam drive mechanism on the dust-collecting slide sleeve (7) will push the limiting cam (25) to rotate, causing the other end of the limiting push rod (27) to be misaligned with the limiting stop (26), leaving space for the limiting push rod (27) to retract. At this time, the external floor brush can be installed into the floor brush mounting slot (23), and the exposed part of the limiting push rod (27) can also retract as the external floor brush is installed. The filter cartridge (3) is provided with a push rod return spring (28) on its side wall. When the external floor brush is removed from the floor brush mounting slot (23), the limiting push rod (27) will move back under the elastic force of the push rod return spring (28). Reset, so that the other end of the limiting push rod (27) is exposed outside the bottom of the filter cartridge (3) again. A cam reset torsion spring (29) is provided at the connection between the limiting cam (25) and the filter cartridge (3). When the dust removal sleeve (7) in the dust collection space (6) leaves the end position near the end of the machine body (1), that is, when the vacuum cleaner re-enters the dust removal state, the cam drive mechanism separates from the limiting cam (25). The limiting cam (25) will rotate back to reset under the torque of the cam reset torsion spring (29), so that the other end of the limiting push rod (27) and the limiting stop (26) return to the relative state, thus hindering the retraction of the limiting push rod (27).

9. The dust removal and reset interlock structure for a vacuum cleaner according to claim 8, characterized in that, A top block (30) is also fixed at the edge of the limiting cam (25). The top block (30) is located in the dust collection space (6). The cam drive mechanism includes a push block (31) fixed on the dust removal sleeve (7). The push block (31) and the top block (30) are arranged opposite to each other. When the dust removal sleeve (7) in the dust collection space (6) moves to the end position near the end of the machine body (1), that is, when the vacuum cleaner ends the dust removal state, the push block (31) on the dust removal sleeve (7) will contact the top block (30) on the limiting cam (25) and push it, thereby causing the limiting cam (25) to rotate.

10. A dust removal and reset interlocking structure for a vacuum cleaner according to any one of claims 1-6, characterized in that, A soft rubber valve (32) is provided at the end of the dust collection space (6) away from the body (1). The soft rubber valve (32) and the dust collection space (6) are rotatably connected. A top rod (33) matching the soft rubber valve (32) is fixed on the dust removal sleeve (7). When the dust removal sleeve (7) in the dust collection space (6) moves to the end away from the body (1), the top rod (33) will push the soft rubber valve (32) outward and push the dirt out of the dust collection space (6). When the vacuum cleaner is in the vacuuming state, the negative pressure generated by the vacuum fan (2) will open the soft rubber valve (32) inward and suck the dirt into the dust collection space (6).

Images