CN108158496B

CN108158496B - Dust collector

Info

Publication number: CN108158496B
Application number: CN201711409507.2A
Authority: CN
Inventors: 卞小贤; 张建良; 聂文明
Original assignee: Suzhou Cleva Electric Appliance Co Ltd
Current assignee: Suzhou Cleva Electric Appliance Co Ltd
Priority date: 2017-03-31
Filing date: 2017-12-22
Publication date: 2024-03-08
Anticipated expiration: 2037-12-22
Also published as: CN107928549A; CN208510942U; CN108158499A; CN208510939U; CN208144967U; CN108158496A; CN108158498B; CN208144964U; CN208510940U; CN108158488B; CN108158499B; CN108158488A; CN107997680B; CN108158497B; CN107997680A; CN108158497A; CN208693167U; CN208510941U; CN108125613A; CN108158498A

Abstract

The invention discloses a dust collector which comprises a main body structure, an air inlet communicated with an inner cavity of the main body structure, and an upper rod assembly extending upwards from the main body structure along a longitudinal axis, and is characterized by comprising a third upper rod, a second upper rod connected with the third upper rod in a telescopic manner and a first upper rod connected with the second upper rod in a telescopic manner, wherein a first locking structure is arranged between the third upper rod and the second upper rod, a second locking structure is arranged between the second upper rod and the first upper rod, when the first locking structure leaves the second locking structure, the second locking structure locks the second upper rod, and when the third upper rod is retracted into the second upper rod so as to enable the first locking structure to abut against the second locking structure, the second locking structure is caused to release the second upper rod. The dust collector has wider application range, smaller occupied space during storage and convenient operation.

Description

Dust collector

Technical Field

The present invention relates to a vacuum cleaner.

Background

With the improvement of the living standard of people, the household dust collector is widely used. The vacuum cleaner is an electric appliance which sucks dust or garbage by sucking air by a motor and forming air negative pressure in a sealed shell. The dust collector generally comprises a handle, a connecting rod, a main body part and a working head connected with the main body part, wherein the connecting rod is arranged between the handle and the main body part to lengthen the operation length of the dust collector and improve the operation comfort of an operator. However, when the dust collector is not used any more and needs to be stored, the dust collector occupies a larger space and is inconvenient to store. In addition, because the length of the connecting rod is limited, the dust collector cannot suck dust at a higher position, and if the dust sucking at the higher position is realized, the connecting rod is additionally connected. Therefore, the application range of the current dust collector is narrower.

In addition, in the current dust catcher, all to the cooling air current through the motor periphery to the cooling air current after the motor cooling again lead to the battery package to cool off the battery package, so set up and make the cooling effect relatively poor, lead to the life of dust catcher shorter.

Disclosure of Invention

The invention aims to provide a dust collector which has wider application range, occupies smaller space during storage and is convenient to operate.

In order to achieve the above object, according to one embodiment of the present invention, a vacuum cleaner includes a main body structure, an air inlet penetrating an inner cavity of the main body structure, and an upper rod assembly extending upward from the main body structure along a longitudinal axis, wherein the upper rod assembly includes a third upper rod, a second upper rod connected to the third upper rod in a telescopic manner, and a first upper rod connected to the second upper rod in a telescopic manner, a first locking structure is disposed between the third upper rod and the second upper rod, a second locking structure is disposed between the second upper rod and the first upper rod, and locks the second upper rod when the first locking structure leaves the second locking structure, and urges the second upper rod to release when the third upper rod is retracted into the second upper rod to make the first locking structure abut against the second locking structure.

As a further improvement of an embodiment of the present invention, the first locking structure includes a first longitudinal slider, a first locking pin having no relative displacement in a longitudinal axis direction with respect to the third upper lever, and a control lever operatively movably provided in the third upper lever and engaged with the first longitudinal slider, the second upper lever being provided with a second upper lever upper locking hole and a second upper lever lower locking hole which are engaged with or disengaged from the first locking pin, and the control lever slides the first longitudinal slider when the control lever is pressed down in the longitudinal axis direction, thereby causing the first locking pin to slide from an engaged position with the second upper lever upper locking hole or the second upper lever lower locking hole to a disengaged position with the second upper lever upper locking hole or the second upper lever lower locking hole.

As a further improvement of an embodiment of the present invention, the first locking structure further includes a first base provided on the third upper rod and a first lateral sliding block provided on the first base in a manner capable of sliding laterally, the first locking pin is fixedly provided on the first lateral sliding block, and the control rod is pressed down so that the first longitudinal sliding block slides along the longitudinal axis direction relative to the first base, thereby causing the first lateral sliding block to drive the first locking pin to slide from a coupling position with the second upper rod upper locking hole or the second upper rod lower locking hole to a decoupling position with the second upper rod upper locking hole or the second upper rod lower locking hole.

As a further improvement of one embodiment of the invention, the lower end of the control rod is provided with a pressing piece (214) which is abutted against the first longitudinal sliding block, the upper end of the control rod is provided with an adjusting key, and the adjusting key is movably arranged on the handle (10) for an operator to operate.

As a further improvement of one embodiment of the present invention, the first locking structure further includes a first outer spring that urges the first locking pin to remain engaged with the second upper rod upper locking hole or the second upper rod lower locking hole.

As a further improvement of an embodiment of the present invention, the first outer spring is a compression spring, one end of the first outer spring abuts against the first transverse sliding block, and the other end of the first outer spring abuts against the first base body.

As a further improvement of one embodiment of the present invention, the first longitudinal slide has an upper mating surface, the first transverse slide has a lower mating surface mated with the upper mating surface, the upper mating surface forms an acute angle with the longitudinal direction, and the lower mating surface forms an acute angle with the sliding direction of the first transverse slide.

As a further improvement of an embodiment of the present invention, the first longitudinal slide includes a first longitudinal slide left side wall, a first longitudinal slide right side wall spaced from the first longitudinal slide left side wall by a certain distance, and a first longitudinal slide end wall connecting the first longitudinal slide left side wall and the first longitudinal slide right side wall, the upper mating surface includes an upper left mating surface provided on the first longitudinal slide left side wall and an upper right mating surface provided on the first longitudinal slide right side wall, and the first longitudinal slide end wall is mated with the control lever.

As a further improvement of an embodiment of the present invention, the first traverse slide includes a first main body portion, a first left protrusion and a first right protrusion extending outward from the first main body portion, the first locking pin is provided on the first main body portion, and the lower mating surface includes a lower left mating surface provided on the first left protrusion and mated with the upper left mating surface, and a lower right mating surface provided on the first right protrusion and mated with the upper right mating surface.

As a further improvement of an embodiment of the present invention, the first body portion includes a first left side portion, a first right side portion spaced apart from the first left side portion by a certain distance, and a first end portion connecting the first left side portion and the first right side portion, and the first locking pin is provided at the first end portion.

As a further improvement of an embodiment of the present invention, the first seat body has a first seat body transverse cavity for accommodating the first transverse sliding block and a first seat body longitudinal cavity for accommodating the first longitudinal sliding block, the extending direction of the first seat body transverse cavity is approximately perpendicular to the extending direction of the first seat body longitudinal cavity, and the first seat body transverse cavity is communicated with the first seat body longitudinal cavity.

As a further improvement of an embodiment of the present invention, the first locking structure further includes a first ferrule, the third upper rod is provided with a first mounting hole, the first base has a first mounting groove corresponding to the first mounting hole, the first ferrule has a first peripheral portion sleeved on the periphery of the third upper rod and a first protruding portion extending inward from the first peripheral portion, and the first protruding portion is connected to the first mounting hole and the first mounting Cao Xiangpei to fix the first base to the third upper rod.

As a further improvement of an embodiment of the present invention, a second upper rod end sleeve is disposed on the second upper rod, and the second upper rod end sleeve abuts against the third upper rod or the first locking structure, so as to prevent the third upper rod from being pulled out from the second upper rod.

As a further improvement of an embodiment of the present invention, the second locking structure includes a second base fixedly disposed on a second upper rod, a second lateral sliding block transversely slidably disposed on the second base, a second locking pin fixedly disposed on the second lateral sliding block, and a second longitudinal sliding block matched with the second lateral sliding block, the first upper rod is provided with a first upper rod locking hole capable of being matched with or disengaged from the second locking pin, the first base abuts against the second longitudinal sliding block and urges the second longitudinal sliding block to longitudinally slide relative to the second base, so that the second lateral sliding block drives the second locking pin to slide from a matching position with the first upper rod locking hole to a disengaging position with the first upper rod locking hole.

As a further improvement of one embodiment of the present invention, the second locking structure further includes a second outer spring urging the second locking pin to remain engaged with the first upper rod locking hole.

As a further improvement of an embodiment of the present invention, the first upper rod is further provided with a first upper rod lower locking hole, the second locking structure further includes a pin shaft slidably disposed in a lateral direction with respect to the second base, the pin shaft is selectively coupled to or decoupled from the first upper rod lower locking hole, and the second locking structure further includes an inner spring for urging the pin shaft to remain coupled to the first upper rod lower locking hole.

As a further improvement of an embodiment of the present invention, the elastic coefficient of the inner spring is smaller than that of the second outer spring, and the original length of the inner spring is not greater than that of the second outer spring.

As a further improvement of an embodiment of the present invention, when the first upper rod continues to drive the first locking structure to move downward to a certain position along the longitudinal direction, the first base pushes the second longitudinal sliding block to move downward relative to the second base, so that the second longitudinal sliding block drives the second transverse sliding block to drive the second locking pin to move transversely, and the second locking pin is disengaged from the first upper rod upper locking hole.

As a further improvement of an embodiment of the present invention, the second longitudinal sliding block has the same structure as the first longitudinal sliding block, and the second transverse sliding block has the same structure as the first transverse sliding block.

Compared with the prior art, the invention has the beneficial effects that: according to the technical scheme adopted by the invention, the third upper rod, the second upper rod and the first upper rod are respectively connected in a telescopic manner, when the first locking structure leaves the second locking structure, the second locking structure locks the second upper rod, and when the third upper rod is retracted into the second upper rod so that the first locking structure is abutted with the second locking structure, the second locking structure is promoted to release the second upper rod. Therefore, the dust collector can be changed into different states according to different requirements, so that the dust collector has wider application range and occupies smaller space when being stored. And the locking structure is convenient to operate, so that the dust collector is more convenient to change between different states.

Drawings

Figure 1 is a front view of a first preferred embodiment of the present invention in a first operational state of the cleaner, with both the third upper pole and the second upper pole deployed;

figure 2 is a cross-sectional view of the first preferred embodiment of the present invention with the cleaner in a first operational state, with both the third upper pole and the second upper pole deployed;

figure 3 is a cross-sectional view of the first preferred embodiment of the present invention with the cleaner in an eighth operational position, wherein both the third upper pole and the second upper pole are retracted, and the lower pole assembly is also in a retracted position;

FIG. 4 is an enlarged schematic view of the structure of the region F1 in FIG. 2;

figure 5 is a schematic perspective view of an end of the cleaner of figure 1;

figure 6 is a schematic perspective view of the handle of the cleaner of figure 1;

figure 7 is a schematic perspective view of the end of the cleaner of figure 1 in abutment with a handle;

figure 8 is a perspective view of the main body structure of the cleaner of figure 1;

figure 9 is an exploded perspective view of the vacuum cleaner of figure 1;

fig. 10 is a perspective view of a second connection pipe of the cleaner of fig. 1;

FIG. 11 is a cross-sectional view of the lower wand, the second connecting tube and the telescoping tunnel tube of the cleaner of FIG. 1;

figure 12 is a schematic perspective view of the lower wand of the cleaner of figure 1;

FIG. 13 is an enlarged schematic view of the structure of the region F2 in FIG. 12;

FIG. 14 is an enlarged schematic view of the structure of the region F3 in FIG. 12;

fig. 15 is a perspective view of a motor mount and battery mount arrangement of the cleaner of fig. 1.

FIG. 16 is an enlarged schematic view of the structure of the area F4 in FIG. 15;

FIG. 17 is an enlarged schematic view of the structure of the region F5 in FIG. 15;

FIG. 18 is a perspective view of the vacuum cleaner of FIG. 1 at the lower stem, the connecting tube assembly and the motor mount, with the lower stem in an extended position and the lower stem removed, leaving a resilient clip for synchronous movement with the lower stem;

FIG. 19 is a perspective view of the lower stem, connecting tube assembly and motor mount of the vacuum cleaner of FIG. 1, with the lower stem in a retracted position and the lower stem removed, leaving a resilient clip for synchronous movement with the lower stem;

FIG. 20 is a perspective view of a motor mount of the vacuum cleaner of FIG. 1;

FIG. 21 is another perspective view of the motor mount of the vacuum cleaner of FIG. 1;

FIG. 22 is a top view of the motor mount of the cleaner of FIG. 1;

FIG. 23 is a perspective view of a battery holder assembly of the vacuum cleaner of FIG. 1;

FIG. 24 is a perspective view of a cyclone duct member of the vacuum cleaner of FIG. 1;

FIG. 25 is a first mounting schematic view of the first upper pole and the housing of the cleaner of FIG. 1;

FIG. 26 is an enlarged schematic view of the structure of the area F6 in FIG. 25;

FIG. 27 is a second mounting schematic view of the first upper pole and the housing of the cleaner of FIG. 1;

FIG. 28 is an enlarged schematic view of the structure of the area F7 in FIG. 27;

FIG. 29 is an enlarged cross-sectional view of the shroud of FIG. 25;

FIG. 30 is a third mounting schematic view of the first upper pole and the housing of the cleaner of FIG. 1;

FIG. 31 is an enlarged schematic view of the structure of the area F8 in FIG. 30;

FIG. 32 is a first mounting schematic of the second upper pole and the first upper pole of the cleaner of FIG. 1;

FIG. 33 is a second mounting schematic view of the second upper pole and the first upper pole of the vacuum cleaner of FIG. 1;

FIG. 34 is an enlarged schematic view of the structure of the region F9 in FIG. 33;

FIG. 35 is a schematic view of the upper wand assembly of the cleaner of FIG. 1, the upper wand assembly being in a fully-extended condition;

FIG. 36 is an enlarged schematic view of the area F10 of FIG. 35, showing the second upper rod locked with the third upper rod;

FIG. 37 is an enlarged schematic view of the area F10 of FIG. 35, with the control lever depressed against the press member, with the second upper lever unlocked from the third upper lever;

FIG. 38 is a schematic view of a first locking arrangement of the upper rod assembly of FIG. 35;

FIG. 39 is a schematic view of the first longitudinal slide and the first lateral slide of the first latch structure of FIG. 38;

FIG. 40 is a schematic perspective view of the handle, adjustment key and power switch of FIG. 1;

FIG. 41 is a cross-sectional view of the handle, adjustment key and power switch of FIG. 40;

FIG. 42 is an enlarged schematic view of region F11 of FIG. 35;

FIG. 43 is a schematic view of a portion of the second locking structure of FIG. 38, with the second housing removed;

FIG. 44 is a schematic view of a portion of the second locking structure of FIG. 38 with the second housing and the second longitudinal slide removed;

FIG. 45 is a schematic view of the upper stem assembly of the vacuum cleaner of FIG. 1, with the upper stem assembly in a semi-extended position, i.e., the third upper stem retracted, and the second upper stem extended;

FIG. 46 is an enlarged schematic view of the area F12 of FIG. 45, showing the first upper rod locked with the second upper rod;

FIG. 47 is an enlarged schematic view of the area F12 of FIG. 45, with the first upper rod and the second upper rod unlocked;

FIG. 48 is a schematic view of the upper stem assembly of the vacuum cleaner of FIG. 1, with the upper stem assembly in a fully retracted state, i.e., with both the third upper stem and the second upper stem retracted;

FIG. 49 is an enlarged schematic view of the area F13 in FIG. 48, showing the first, second and third upper bars unlocked;

FIG. 50 is an enlarged schematic view of the area F13 of FIG. 48, showing the locking between the first upper rod, the second upper rod and the third upper rod;

FIG. 51 is a schematic view of a cable payout structure in accordance with the first preferred embodiment of the present invention, with the third upper rod retracted;

FIG. 52 is a schematic view of a cable payout mechanism in accordance with the first preferred embodiment of the present invention, with the third upper rod deployed;

FIG. 53 is a schematic view of the first pulley assembly of the cable pay-off structure of FIG. 51;

FIG. 54 is a schematic view of a second pulley assembly of the cable pay-off structure of FIG. 51;

FIG. 55 is a cross-sectional view of a cable payout mechanism in accordance with a second preferred embodiment of the present invention, with the third upper rod retracted;

FIG. 56 is an enlarged schematic view of the area F14 of FIG. 55;

fig. 57 is an enlarged schematic view of the region F15 in fig. 55.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the invention and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the invention.

Referring to fig. 1 to 3, the embodiment of the present invention provides a vacuum cleaner including a handle 10, an upper pole assembly 12, a main body structure 14, a lower pole assembly 15, a connection pipe assembly 18 provided in the lower pole assembly 15, and a working head assembly 20 connected to the lower pole assembly 15. In addition, the cleaner is provided with an air inlet communicating with the inner cavity of the main body structure 14. Wherein one end of the upper stem assembly 12 is connected to the main body structure 14 and the other end of the upper stem assembly 12 is connected to the handle 10. The upper pole assembly 12 is located on one side of the main body structure 14, the lower pole assembly 15 is located on the other side of the main body structure 14 opposite to the upper pole assembly 12, the upper pole assembly 12 extends upward from the main body structure 14, the lower pole assembly 15 extends downward from the main body structure 14, and the extending direction of the upper pole assembly 12 is parallel to the extending direction of the lower pole assembly 15.

The upper pole assembly 12 includes a first upper pole 22 connected to the body structure 14, a second upper pole 24 telescopically connected to the first upper pole 22, and a third upper pole 26 telescopically connected to the second upper pole 24, with the handle 10 fixedly disposed on the third upper pole 26. Of course, if necessary, only the first upper lever 22 and the second upper lever 24 may be provided, and the third upper lever 26 may not be provided, and the handle 10 may be provided on the second upper lever 24. Similarly, three or more upper bars may be provided as needed.

1. The lower rod assembly 15 includes a lower rod 16 coupled to the main body structure 14 and a second connection tube 56 fixedly coupled to the lower rod 16. The working head assembly 20 is detachably connected to the second connection tube 56.

The handle 10 has a connecting end 28 connected to the third upper rod 26 and a free end 30 opposite the connecting end 28, one end of the lower rod assembly 15 being connected to the connecting tube assembly 18 and the other end of the lower rod assembly 15 being provided with an end 59. The lower rod assembly 15 is operatively slidable relative to the housing 32 of the body structure 14, the lower rod assembly 15 having an extended state and a retracted state, the lower rod assembly 15 being slidably movable upwardly relative to the housing 32 during a transition from the extended state to the retracted state to thereby move the working head assembly 20 in a direction gradually closer to the housing 32. Referring to fig. 2, in the extended position, lower rod assembly 15 is slid to the lowermost position and end 59 is in abutment with the extrados of body structure 14. Referring to fig. 3, when the lower rod assembly 15 is in the retracted state, i.e., slid to the uppermost position, the end 59 is distal from the body structure 14. Of course, the lower rod assembly 15 may also be fixedly disposed on the main body structure 14. That is, the position of the lower rod assembly 15 is not adjustable.

The upper wand assembly 12 of the cleaner has a first, second, third and contracted state. Wherein in the first deployed state, the third upper rod 26 is fully extended from the second upper rod 24 and the second upper rod 24 is fully extended from the first upper rod 22. At this time, the operational height of the cleaner is highest.

In addition, the operational height of the cleaner can be adjusted down, and in particular, the third upper pole 26 can be retracted into the second upper pole 24, without the second upper pole 24 being retracted into the first upper pole 22, i.e., the second upper pole 24 is still extended, depending on the operational height desired by the user, while the upper pole assembly 12 of the cleaner is in the second extended state. Of course, the second upper pole 24 can also be retracted into the first upper pole 22, while the third upper pole 26 is not retracted into the second upper pole 24, i.e., the third upper pole 26 is still extended, while the upper pole assembly 12 of the cleaner is in the third extended state.

Accordingly, the cleaner has eight operating conditions, wherein in a first operating condition, the lower wand assembly 15 is in an extended condition and the upper wand assembly 12 is in a first extended condition, see in particular figures 1 and 2; in the second operating state, the lower rod assembly 15 is in an extended state and the upper rod assembly 12 is in a second extended state; in the third operating state, the lower rod assembly 15 is in the extended state and the upper rod assembly 12 is in the third extended state; in the fourth operating state, the lower rod assembly 15 is in an extended state and the upper rod assembly 12 is in a contracted state; that is, in the first to fourth operating states, the lower rod assembly 15 is in an extended state, and the upper rod assembly 12 is in a different state. In the fifth to eighth operating states, the lower rod assembly 15 is in the retracted state, and the upper rod assembly 12 is in a different state. Specifically, in the fifth working state, the lower rod assembly 15 is in the retreating state, and the upper rod assembly 12 is in the first unfolding state; in the sixth working state, the lower rod assembly 15 is in a retreating state, and the upper rod assembly 12 is in a second unfolding state; in the seventh working state, the lower rod assembly 15 is in a retreating state, and the upper rod assembly 12 is in a third unfolding state; in the eighth operating condition, the lower rod assembly 15 is in the retracted condition and the upper rod assembly 12 is in the retracted condition, see in particular fig. 3.

When the upper wand assembly 12 of the cleaner is in the retracted condition and the lower wand 16 is slid to the uppermost retracted condition, the free end 30 of the handle 10 abuts the lower wand 16, and the cleaner is in the eighth operating condition in which the cleaner occupies a minimum amount of space. In particular to the present embodiment, the free end 30 of the handle 10 is remote from the lower pole 16 when the cleaner is in the first to seventh operating conditions. When the position of the lower pole assembly 15 is set to be non-adjustable, the number of operating conditions of the cleaner is the same as the number of conditions in which the upper pole assembly 12 is convertible, i.e. the cleaner has four operating conditions, wherein in the first to third operating conditions the free end 30 of the handle 10 is spaced from the lower pole 16 and in the fourth operating condition the free end 30 of the handle 10 abuts the lower pole 16.

With further reference to figures 5, 6 and 7, when the cleaner is in the eighth operating condition, the free end 30 of the handle 10 abuts the end 59. And when the cleaner is in the first to seventh operating conditions, the free end 30 of the handle 10 is remote from the end 59. Specifically, the free end 30 of the handle 10 is provided with an inner arcuate end surface 31, and the end surface of the end 59 abutting against the free end 30 of the handle 10 is provided with an outer arcuate end surface 61 matching the inner arcuate end surface 31. When the cleaner is in the eighth operating condition, the outer arcuate end surface 61 is located in the inner arcuate end surface 31. Of course, the free end 30 of the handle 10 may be provided with an outer arcuate end surface, and the end surface of the end 59 abutting against the free end 30 of the handle 10 may be provided with an inner arcuate end surface matching the outer arcuate end surface.

Referring further to fig. 8, in the present embodiment, the housing of the main body structure 14 includes an upper housing 31, a lower housing 33 connected to the upper housing 31, an upper cover 35 located above the upper housing 31 and connected to the upper housing 31, and a lower cover 37 located below the lower housing 33 and connected to the lower housing 33, the upper housing 31 and the lower housing 33 are columnar bodies extending in the vertical direction, the upper cover 35 and the lower cover 37 are hemispherical and are smoothly abutted with the columnar bodies, and the upper cover 35, the upper housing 31, the lower housing 33 and the lower cover 37 constitute a capsule-shaped main body structure. Further, the upper cover 35 is made of transparent material, and the light source is arranged in the upper cover 35, so that the function of decoration can be achieved, and different working states of the dust collector can be indicated through different luminous states. The upper case 31 is provided with a lower rod assembly mounting portion 39 for mounting the lower rod assembly 15, and as shown in fig. 9, the upper case 31 is further provided with an upper rod assembly mounting portion 41 for mounting the upper rod assembly 12. The main structure further comprises a vacuum generator 34 provided in the upper housing 31 and/or the lower housing 33, a filter device 36 provided below the vacuum generator 34 and located in the housing 32. The inner spaces of the lower case 33 and the lower cover 37 are configured as dust storage spaces. Specifically, the lower cover 37 is pivotally connected to the lower housing 33 by a pivot such that the lower cover 37 is selectively opened or closed, and the lower housing 33 thereby facilitates cleaning of dust stored in the lower housing 33.

The vacuum generator 34 comprises a motor base 40 and a motor 42 arranged on the motor base 40, the motor 42 is provided with an output shaft 44, the output shaft 44 is provided with a movable impeller 46, when the motor 42 is started, the movable impeller 46 is driven to rotate to form air negative pressure, wind at the working head assembly 20 is sucked into the shell 32, and dust or garbage is sucked into the dust storage cup 38.

The handle 10 has a connecting section 48 connected to the upper pole assembly 12 and an arcuate section 50 connected to the connecting section 48. In the preferred embodiment, the center of the arc segment 50 and the center of the upper end of the housing 32 define a line parallel to the direction of extension of the first upper rod 22 in the front view of fig. 1. The connecting section 48 of the handle 10 extends in the same direction as the first upper rod 22.

In addition, the projection of the working head assembly 20 and the handle 10 onto a horizontal plane, with reference to the plane in which the cleaner is in operation, at least partially overlaps the projection of the housing 32 onto a horizontal plane.

Figure 1 shows the cleaner in a first operating condition, i.e. with the upper wand assembly 12 in a fully-extended first deployed condition and the lower wand assembly 15 in an extended condition. Specifically, the third upper rod 26 is fully extended from the second upper rod 24, the second upper rod 24 is fully extended from the first upper rod 22, and the lower rod 16 slides downwardly to the bottommost end relative to the upper housing 31. In this case, the user can operate the cleaner in an upright posture by conveniently holding the handle 10. In this embodiment, the working head assembly 20 is a ground brush assembly, and specifically includes a ground brush, a rolling brush, a ground brush air inlet at the rolling brush, and a ground brush connecting pipe connected to the ground brush air inlet. Of course, the work head assembly 20 may be configured as other work heads as desired. In addition, and with further reference to fig. 9 and 10, the lower port of the second connecting tube 56 has a bevel, with the bevel facing away from the upper pole assembly 12, so that a user can selectively remove the work head assembly 20 for cleaning operations using only the lower port 57 of the second connecting tube 56 extending up to the ceiling or down into a slot such as under a piece of furniture. A separate flat tip assembly can be omitted. Correspondingly, the connection section 63 of the working head assembly 20 and the second connection tube 56 is also provided as a bevel.

In addition, the handle 10 is provided with a power switch 52, the power switch 52 is electrically connected with the motor 42, and a user can start or stop the cleaner by operating the power switch 52.

One end of the connecting tube assembly 18 is fixedly connected to one end of the lower rod 16 adjacent the air inlet, and the other end of the connecting tube assembly 18 is fixedly connected to the main structure 14 and is in fluid communication with the interior cavity of the main structure 14. In addition, one end of the second connecting pipe 56 is fixedly connected to one end of the lower rod 16 close to the air inlet, and the other end of the second connecting pipe 56 is communicated with the air inlet.

Specifically, the other end of the connecting tube assembly 18 is connected to the motor mount 40. Specifically, the connection tube assembly 18 includes a first connection tube 54, a telescoping tunnel tube 58 connecting the first connection tube 54 and a second connection tube 56. The first connecting pipe 54 is connected to the motor base 40, and the first connecting pipe 54 is communicated with an upstream portion of the impeller 46 in the inner cavity of the motor base 40. One end of the telescopic air duct pipe is connected to the first connecting pipe, and the other end of the telescopic air duct pipe is connected to one end, close to the air inlet, of the lower rod assembly. Specifically, the lower rod 16 is hollow, and the first connecting pipe 54 and the telescopic duct pipe 58 are both located in the lower rod 16. With further reference to fig. 10 and 11, the upper end of the second connecting pipe 56 is fixedly connected with the telescopic duct pipe 58, a buckle 65 is arranged on the outer side of the second connecting pipe 56, a groove 67 is arranged on the lower rod 16, and the buckle 65 is mutually matched with the groove 67, so that the second connecting pipe 56 and the lower rod 16 are fixedly connected together. The lower end of the second connection tube 56 is connected to the working head assembly 20. The end of the second connecting pipe 56 is further provided with a fixing pipe 69, and the fixing pipe 69 is used for fixing the telescopic air duct pipe 58.

When the lower rod assembly 15 is extended, the lower rod 16 is operated to slide downward with respect to the upper housing 31, and the lower rod 16 moves the second connection pipe 56 downward, so that the second connection pipe 56 moves the working head assembly 20 downward. At the same time, the telescoping tunnel 58 is extended in the longitudinal extension of the lower pole 16, thereby moving the working head assembly 20 progressively away from the housing 32, providing a higher working height for the cleaner. When the cleaner is to be stored or a lower working height is required, the lower lever 16 is operated to slide upward relative to the housing 32, and the lower lever 16 moves the second connecting tube 56 upward, so that the second connecting tube 56 moves the working head assembly 20 upward. While the telescoping tunnel 58 is shortened in the longitudinal extension of the lower pole 16 to move the working head assembly 20 progressively closer to the housing 32 to reduce the working height or store the cleaner.

One end of the lower rod 16 is connected to the second connection pipe 56, and the other end of the lower rod 16 is provided with an end 59. When lower rod 16 is slid downwardly relative to housing 32 such that work head assembly 20 is in a position furthest from housing 32, end 59 is adjacent the upper end of housing 32 and end 59 is distal from free end 30 of handle 10. Wherein the end 59 is arcuate adjacent the outer periphery of the housing 32, the arcuate shape of which conforms to the outer shape of the upper end of the housing 32.

When the cleaner is switched to the eighth operating condition, the lower pole 16 slides upwardly relative to the housing 32 until the working head assembly 20 moves to a position nearest the housing 32, and in addition, the second upper pole 24 is retracted within the first upper pole 22, the third upper pole 26 is retracted within the second upper pole 24, and finally, when the cleaner is in the eighth operating condition, the end 59 is spaced away from the housing 32, with the end 59 abutting the free end 30 of the handle 10. At this time, the volume of the dust collector is minimum, and the dust collector can work in this state, and of course, the dust collector can be stored without working. The storage volume of the dust collector becomes very small, and the dust collector is very convenient to store. Meanwhile, the dust collector can be unfolded at different operation heights according to the requirement, and the application range is wider.

As shown in fig. 4, the vacuum generator 34 is provided with a main air inlet 60, and the first connecting pipe 54 is communicated with the main air inlet 60. In the preferred embodiment, a clamping structure is adopted between the first connecting tube 54 and the motor base 40, specifically, an outer protruding block 62 is disposed on the first connecting tube 54, and a groove 64 matched with the outer protruding block 62 is disposed on the motor base 40. Of course, the first connecting tube 54 may be provided with a groove 64, and correspondingly, the motor base 40 may be provided with an outer protrusion 62 matched with the groove 64. In addition, the motor base 40 includes a main body 66, a front flange 68 extending outward from the main body 66 and located at the periphery of the main air inlet 60, and an inner protrusion 70 extending from the front flange 68 toward the direction approaching the main air inlet 60, where the main body 66, the front flange 68 and the inner protrusion 70 form a groove 64 matching with the outer protrusion 62.

With further reference to fig. 12-19, lower rod 16 is operatively slidably disposed up and down on motor mount 40. One side wall of the lower rod 16 is provided with a longitudinal through hole 72 along the longitudinal extending direction of the lower rod 16, the first connecting pipe 54 is arranged in the lower rod 16, and the first connecting pipe 54 and the main air inlet 60 of the motor base 40 extend through the through hole and are connected with each other.

The lower rod 16 is provided with a guide groove 74 extending along the longitudinal extending direction of the lower rod 16, and the motor base 40 is provided with a guide bar 76 matched with the guide groove 74, so that the lower rod 16 slides up and down along the longitudinal extending direction. Of course, the guide groove 74 may also be provided on the motor base 40, and the guide bar 76 is provided on the lower rod 16 correspondingly. Specifically, for compact and simple construction, the guide slot 74 is provided on the same side wall of the lower rod 16 as the through hole. Preferably, the number of guide grooves 74 is two symmetrically, and correspondingly, the number of guide bars 76 is two. The guide groove 74 includes a left slide groove 78 and a right slide groove 80, wherein the left slide groove 78 and the right slide groove 80 are symmetrically distributed at both sides of the through hole. The left chute 78 and the right chute 80 are arranged in the same manner and are symmetrically arranged. As will be described in detail with reference to the left chute 78, the left chute 78 includes a front chute wall 82, a rear chute wall 84 spaced from the front chute wall 82, and an outer chute wall 86 and an inner chute wall 88 both connecting the front chute wall 82 and the rear chute wall 84, with the inner chute wall 88 and the outer chute wall 86 being spaced from each other, and with the front chute wall 82 and the inner chute wall 88 also being spaced from each other, that is, with the front chute wall 82 and the inner chute wall 88 defining an opening therebetween, with the inner chute wall 88 and the outer chute wall 86 being spaced from each other by a distance greater than the distance between the front chute wall 82 and the inner chute wall 88. The guide bar 76 also includes a left guide bar 90 coupled to the left chute 78 and a right guide bar 92 coupled to the right chute 80, and likewise, the left guide bar 90 and the right guide bar 92 are symmetrically disposed in a left-right direction, and are disposed in the same manner. For purposes of illustration only, left guide bar 90 includes a first guide portion 94 extending outwardly from body 66 of motor mount 40 and a second guide portion 96 angled from first guide portion 94 and extending away from right guide bar 92 from first guide portion 94, wherein first guide portion 94 is located in the opening between channel front wall 82 and channel inner wall 88 and second guide portion 96 is located between channel front wall 82 and channel rear wall 84 and adjacent channel outer wall 86.

Further, the main air intake 60 is located between the left and right guide bars 90 and 92, and the front flange 68 (see fig. 4 and 17) of the main air intake 60 is spaced apart from the left and right guide bars 90 and 92.

In the preferred embodiment, a locking structure is also provided between lower rod 16 and motor mount 40 for securing lower rod 16 in either the extended or retracted state, and is operable to unlock lower rod 16 to release lower rod 16 so that lower rod 16 may be operated to slide relative to motor mount 40 to thereby slide from the extended to the retracted state or vice versa. Specifically, the locking structure includes an elastic clamping member 98 fixedly disposed on the lower rod 16, the left guide bar 90 of the motor base 40 is provided with an upper left clamping groove 100 and a lower left clamping groove 102, the elastic clamping member 98 is operatively disengaged from the upper left clamping groove 100 or the lower left clamping groove 102, when the elastic clamping member 98 is released, and the sliding lower rod 16 slides, when the elastic clamping member 98 reaches a position corresponding to the upper left clamping groove 100 or the lower left clamping groove 102, the elastic clamping member 98 is engaged with the upper left clamping groove 100 or the lower left clamping groove 102 under the action of its own elasticity, so as to fix the lower rod 16 in a retracted state or an extended state. For stability, correspondingly, the right guide strip 92 is also provided with an upper right clamping groove 104 or a lower right clamping groove 106 which is matched with the elastic clamping piece 98, the upper right clamping groove 104 corresponds to the position of the upper left clamping groove 100, the lower right clamping groove 106 corresponds to the position of the lower left clamping groove 102, and the arrangement mode is the same as that of the upper left clamping groove 100 and the lower left clamping groove 102, and will not be described in detail here. In the preferred embodiment, the motor base 40 is provided with two pairs of upper left and right slots 100, 104, and lower left and right slots 102, 106, so that the lower rod assembly 15 assumes two states. Of course, n pairs of slots may be provided so that the lower rod assembly 15 assumes n states, where n is greater than or equal to 3 and n is an integer.

Specifically, the elastic clip 98 includes an elastic clip rear portion 108 located at the inner periphery of the lower rod 16, an operation protrusion 110 extending out of the lower rod 16 and exposed for operation, and an elastic clip mating end 112 extending from the longitudinal through hole 72 of the lower rod 16, wherein the elastic clip mating end 112 is mated with the upper left clip groove 100 and the upper right clip groove 104 or with the lower left clip groove 102 and the lower right clip groove 106. In detail, the lower lever 16 is provided with a locking hole 114 on a side wall adjacent to the side wall where the longitudinal through hole 72 is provided, and the operating protrusion 110 is coupled with the locking hole 114 and extends out of the locking hole 114 for an operator to operate. In addition, the locking hole 114 is provided with a limiting rib 115 protruding inward in the circumferential direction for positioning the elastic clip 98. As shown in fig. 18, the lower rod 16 is in the extended state, and the elastic clip 98 is engaged with the lower left clip groove 102 and the lower right clip groove 106. In the lower rod 16, the vertical distance from the elastic clamping member 98 to the second connecting pipe 56 is X1, and since the elastic clamping member 98 is fixedly arranged on the lower rod 16 and the lower rod 16 is also fixedly connected with the second connecting pipe 56, the vertical distance X1 from the elastic clamping member 98 to the second connecting pipe 56 is kept constant during the sliding process of the lower rod assembly 15 between the extended state and the retracted state. When the lower rod assembly 15 is to be unfolded, the operation protrusion 110 is first pressed to disengage the elastic clamping member 98 from the upper left clamping groove 100 and the upper right clamping groove 104, the lower rod 16 drives the second connecting pipe 56 to slide downwards, and the telescopic air duct pipe 58 arranged between the first connecting pipe 54 and the second connecting pipe 56 is stretched until the elastic clamping member 98 is matched with the lower left clamping groove 102 and the lower right clamping groove 106, and at this time, the vertical distance between the lower end of the second connecting pipe 56 and the main air inlet 60 is X2. When the lower rod assembly 15 is to be contracted, the operation projection 110 is first pressed to disengage the elastic clamping member 98 from the lower left clamping groove 102 and the lower right clamping groove 106, the lower rod 16 is operated to drive the second connecting pipe 56 to slide upwards, and the telescopic air duct pipe 58 arranged between the first connecting pipe 54 and the second connecting pipe 56 is compressed until the elastic clamping member 98 is matched with the upper left clamping groove 100 and the upper right clamping groove 104, at this time, the vertical distance between the lower end of the second connecting pipe 56 and the main air inlet 60 is X3, wherein X3 is less than X2.

As shown in fig. 15 and 20 to 24, the cleaner further comprises a battery pack for supplying power to the motor 42, and the air flow from the air inlet into the main structure 14 is split by the motor mount 40 into a first partial air flow directly to the motor 42 for cooling the motor 42 and a second partial air flow directly to the battery pack for cooling the battery pack. In the preferred embodiment, the cooling of the motor 42 and the battery pack is achieved at the same time, with better cooling.

The vacuum generator 34 further includes a cyclone air duct member 116 connected to the motor mount 40, the main air inlet 60 is provided in the cyclone air duct member 116, the motor mount 40 has a motor cavity 118 for accommodating the motor 42 and at least one air cavity communicating with the motor cavity 118 for circulating a first portion of the air flow. Specifically, the cyclone air duct member 116 has a cyclone air duct 61 communicating with the main air intake 60 and disposed between the main air intake 60 and the air chamber. Specifically, the direction of extension of the air chamber is the same as the direction of extension of the motor chamber 118, and the air chamber bottom is in fluid communication with the cyclone air duct 61. In the preferred embodiment, the number of wind chambers is two. Specifically, the wind chambers include a front wind chamber 120 and a rear wind chamber 122, and the front wind chamber 120 and the rear wind chamber 122 are disposed substantially symmetrically on both sides of the motor chamber 118. Referring again to fig. 3, as airflow enters from the primary air intake 60, it enters the front and rear air chambers 120, 122, thereby cooling the motor 42. Specifically, in the present embodiment, the air flows from the main air inlet 60 and then through the rotating air duct to form a rotating air flow, and the rotating air flow passes through the filtering device 36 and then enters the front air chamber 120 and the rear air chamber 122, so as to cool the motor 42.

Motor mount 40 includes a first mount 124 and a second mount 126, wherein second mount 126 protrudes beyond the outer periphery of first mount 124. In detail, a plane perpendicular to the axis of the output shaft 44 of the motor 42 is defined as a first plane, and the projection of the first mount 124 on the first plane is entirely within the projection range of the second mount 126 on the first plane. The portion of the second mounting seat 126 protruding out of the first mounting seat 124 is provided with a first ventilation hole 128, the opening direction of the first ventilation hole 128 is approximately vertical, the first ventilation hole 128 is communicated with the air inlet and the air cavity, further, the first ventilation hole 128 is communicated with the front air cavity 120 and the rear air cavity 122, and air flow entering from the main air inlet 60 enters the front air cavity 120 and the rear air cavity 122 through the first ventilation hole 128, so that the motor 42 is cooled. The first vent 128 communicates with the main intake 60 through the cyclone duct 61. The first ventilation holes 128 are provided in a plurality, and preferably, the plurality of first ventilation holes 128 are uniformly distributed at the outer circumference of the motor 42. The first vent 128 has a first end 129 and a second end 131 that is gradually closer to the axis of the motor 42 from the first end 129, and the width of the first end 129 is larger than the width of the second end 131.

Further, a second vent hole 130 is provided in the peripheral wall constituting the motor chamber 118, and is communicated with the motor chamber 118. The second vent hole 130 is provided on the outer periphery of the first mount 124, and the opening direction of the second vent hole 130 is substantially horizontal. The motor 42 itself is typically provided with a cooling fan (not shown), and the outer wall of the motor 42 is provided with a tuyere (not shown) corresponding to the position of the second ventilation hole 130 to further enhance cooling of the motor 42. The second vent hole 130 may be provided in one or two or more.

The cleaner also includes a battery pack (not shown) for powering the motor 42, a battery holder assembly 132 for carrying the battery pack. The battery holder device 132 spans over the motor base 40, specifically, the battery holder device 132 spans over the first mounting base 124. In addition, when the battery holder device 132 straddles the first mounting base 124, the overall profile of the battery holder device 132 and the motor base 40 approaches a cylindrical shape. The battery holder device 132 is provided with a plurality of ventilation holes 134, and the opening direction of the ventilation holes 134 is perpendicular to the opening direction of the first ventilation holes 128. The air flow flowing out of a portion of the first vent 128 of the motor mount 40 enters the battery mount device 132 through the vent 134, thereby cooling the battery pack in the battery mount device 132.

Further, the battery holder device 132 is spaced from the second mounting base 126 of the motor base 40. In the preferred embodiment, the battery holder device 132 includes a first battery holder 136 and a second battery holder 138 opposite to the first battery holder 136, the first battery holder 136 and the second battery holder 138 are respectively disposed on two sides of the first mounting seat 124, and ventilation holes 134 are respectively disposed on the first battery holder 136 and the second battery holder 138.

The battery holder apparatus 132 further includes a connecting member 140 connecting the first and second battery holders 136 and 138, one end of the first mounting holder 124 is connected to the second mounting holder 126, the other end of the first mounting holder 124 is provided with the connecting member 140, and the connecting member 140 is supported by the first mounting holder 124, so that the first and second battery holders 136 and 138 are straddled on both sides of the first mounting holder 124.

After passing through part of the first ventilation holes 128, part of the airflow from the main air inlet 60 enters the first battery seat 136 and the second battery seat 138 through the ventilation holes 134, so as to cool the battery packs in the first battery seat 136 and the second battery seat 138.

In the preferred embodiment, the first battery holder 136, the connecting member 140 and the second battery holder 138 are integrally formed,

The battery holder device 132 has a receiving opening into which the battery pack is placed, and a cover 142 covering the receiving opening is provided on the battery holder device 132, wherein a control board (PCB) electrically connected to the motor 42 is mounted on an upper surface of the cover 142. In the preferred embodiment, the first battery holder 136 has a first receiving opening 144 for receiving a first set of battery packs, the second battery holder 138 has a second receiving opening 146 for receiving a second set of battery packs, and the cover 142 covers both the first receiving opening 144 and the second receiving opening 146. Specifically, the cover 142 is detachably disposed on the battery holder device 132 by bolts, and of course, other fixing methods can be used between the cover 142 and the battery holder device 132.

In addition, in the preferred embodiment, the first battery holder 136 and the second battery holder 138 have the same structure, and only the first battery holder 136 is described in detail herein, the first battery holder 136 has a first bottom plate 148 for supporting the first group of batteries, and a first side plate 150 extending from the first bottom plate 148 to the first receiving opening 144, wherein the first bottom plate 148 is disposed opposite to the first receiving opening 144, the longitudinal extending direction of the first side plate 150 is substantially perpendicular to the first bottom plate 148, the first side plate 150 and the first bottom plate 148 form a receiving cavity for receiving the first group of batteries, the first battery holder 136 is provided with a plurality of ventilation holes 134, and the ventilation holes 134 extend longitudinally along the longitudinal extending direction of the first side plate 150.

As shown in fig. 25 to 31, the following is a specific connection structure and connection method between the upper rod assembly 12 and the housing 32, in which the housing 32 is provided with the mounting hole 152, the first upper rod 22 includes a main body 153 that is hollow and extends in a longitudinal direction, and a hook 154 provided to the main body 153, and the hook 154 includes a connection portion 156 that extends outwardly from the periphery of the main body 153, and in particular, the connection portion 156 extends in a direction substantially perpendicular to the longitudinal direction of the main body 153. The connection portion 156 is located in the mounting hole 152 and abuts against one side of the mounting hole 152. The first upper rod 22 is provided with a mating hole 158 adjacent to the connecting portion 156 of the hook 154, and specifically, the mating hole 158 corresponds to the position of the mounting hole 152, and preferably, the mating hole 158 and the mounting hole 152 may be provided to be the same size. Of course, the mounting hole 152 may be provided smaller than the mating hole 158. A sleeve 160 is disposed within the first upper stem 22, the sleeve 160 compressing the first upper stem 22 against the body structure 14. Further, the sleeve 160 includes a sleeve wall 162 located within the hollow portion of the first upper stem 22 and a sleeve wall protrusion 164 extending outwardly from the sleeve wall 162, the sleeve wall protrusion 164 mating with the mating aperture 158 and the mounting aperture 152 and compressing the hook 154 between the sleeve wall protrusion 164 and the housing 32, thereby securing the first upper stem 22 and the housing 32 together.

To provide a stronger securement between the first upper stem 22 and the housing 32, the hook 154 also includes an extension hook portion 166 connected to and disposed at an angle to the connection portion 156. The housing 32 is caught between the extension hook 166 and the main body 153 of the first upper lever 22, thereby making the fixation between the housing 32 and the first upper lever 22 more reliable.

Specifically, the length of the extension hook portion 166 in the longitudinal direction is Y1, the length of the mounting hole 152 in the longitudinal direction is Y2, the length of the sleeve wall protrusion portion 164 in the longitudinal direction is Y3, and the thickness +y3=y2 of the connection portion 156. So that the sleeve 160 compresses the first upper stem 22 against the housing 32.

Next, describing the mounting method specifically, the first upper rod 22 is moved in the direction D1 toward the housing 32, and when the first upper rod 22 is adjacent to the housing 32, the relative up-down position of the first upper rod 22 and the housing 32 is adjusted, so that the hooks 154 correspond to the positions of the mounting holes 152, the hooks 154 are pushed into the mounting holes 152, and the main body 153 of the first upper rod 22 abuts against the housing 32. The first upper rod 22 is then moved downwardly in the direction D2 until the connecting portion 156 abuts the housing 32, while the housing 32 is captured between the first upper rod 22 and the extending hook portion 166 of the hook 154. Finally, the sleeve 160 is placed into the first upper stem 22 in the direction D3, and specifically, the end of the sleeve 160 is provided with a stop 168, and when the sleeve 160 is pushed into abutment of the stop 168 against the outer wall of the first upper stem 22, the sleeve wall protrusion 164 mates with the mating hole 158 and the mounting hole 152, thereby securing the first upper stem 22 and the housing 32 together.

As shown in fig. 32 to 34, the second upper rod 24 is inserted into the first upper rod 22 in the direction D, and when the second upper rod 24 is mounted in place, the second upper rod 24 abuts against the sleeve 160, and the end of the second upper rod 24 located in the first upper rod 22 protrudes from the sleeve 160 in the longitudinal direction, and the outer wall of the second upper rod 24 and the inner wall of the first upper rod 22 have a gap of width Y4 on the side adjacent to the main body structure 14 for facilitating accommodation of a cable (described in detail later) connecting the motor 42 and the power switch 52.

As shown in fig. 35 to 39, a first locking structure 170 is provided between the second upper lever 24 and the third upper lever 26. Of course, when the upper pole assembly 12 is provided with only two upper poles, namely the first upper pole 22 and the second upper pole 24, the first locking structure 170 is provided between the first upper pole 22 and the second upper pole 24. Specifically, the first locking structure 170 includes a first longitudinal slide 176, a first locking pin 175 having no relative displacement with respect to the third upper rod 26 in the longitudinal axis direction, and a control rod 178 operatively movably disposed in the third upper rod 26 and coupled with the first longitudinal slide 176, the second upper rod 24 is provided with a second upper rod upper locking hole 180 and a second upper rod lower locking hole 182 that are coupled with or decoupled from the first locking pin 175, and when the control rod 178 is depressed in the longitudinal axis direction, the control rod 178 slides the first longitudinal slide 176 to cause the first locking pin 175 to slide from the coupled position with the second upper rod upper locking hole 180 or the second upper rod lower locking hole 182 to the decoupled position with the second upper rod upper locking hole 180 or the second upper rod lower locking hole 182

Further, the first locking structure 170 further includes a first base 172 disposed on the third upper rod 26, a first lateral sliding block 174 disposed on the first base 172 and capable of sliding laterally, and a first locking pin 175 is fixedly disposed on the first lateral sliding block 174, and when the upper rod assembly 12 only includes two upper rods, namely, the first upper rod 22 and the second upper rod 24, and the first longitudinal sliding block 176 is matched with the first lateral sliding block 174, the first base 172 is disposed on the second upper rod 24, and correspondingly, a control rod 178 is disposed in the second upper rod 24, and an upper locking hole and a lower locking hole capable of being matched with or disengaged from the first locking pin 175 are disposed on the first upper rod 22.

The control lever 178 is coupled to the first longitudinal slide 176 such that when the control lever 178 is depressed in a direction toward the first cross slide 174 along the lengthwise extension of the third upper rod 26, the control lever 178 causes the first longitudinal slide 176 to slide in a direction toward the work head assembly 20, thereby causing the first cross slide 174 to drive the first locking pin 175 from the coupled position with the second upper rod locking hole 180 and the second upper rod lower locking hole 182 to the uncoupled position with the second upper rod locking hole 180 and the second upper rod lower locking hole 182. When the third upper rod 26 is unfolded, the first locking pin 175 is coupled with the second upper rod locking hole 180, thereby locking the third upper rod 26 in the unfolded state. When the third upper rod 26 is fully retracted into the second upper rod 24, the first locking pin 175 mates with the second upper rod lower locking hole 182, thereby locking the third upper rod 26 in the retracted state.

Referring to fig. 2, 40 and 41, a lever 178 is movably disposed on the handle 10. Specifically, an adjusting key 184 is disposed at an end of the control rod 178 opposite to the pressing member 214, and the adjusting key 184 is movably disposed on the handle 10 for the operator to operate the retraction of the upper rod assembly 12. A power switch 52 electrically connected to the motor 42 is also provided to the handle 10, preferably the power switch 52 is provided at an end of the handle 10 adjacent the third upper rod 26.

When the adjustment key 184 is operated, the control rod 178 is moved downward, so that the first longitudinal sliding block 176 is moved downward, and the first transverse sliding block 174 is moved inward, so that the first locking pin 175 is separated from the second upper rod locking hole 180, and then the third upper rod 26 is retracted into the second upper rod 24, and the adjustment key 184 is released. When retracted to a certain position, the first locking pin 175 reaches a position corresponding to the second upper rod lower locking hole 182, and the first locking pin 175 is engaged with the second upper rod lower locking hole 182, thereby holding the third upper rod 26 in the retracted position. When the third upper rod 26 is to be unfolded, the adjustment key 184 is operated to move the first locking pin 175 inwardly so that the first locking pin 175 is disengaged from the second upper rod lower locking hole 182, and then the third upper rod 26 is withdrawn from the second upper rod 24 while the adjustment key 184 is released. When withdrawn to a certain position, the first locking pin 175 is engaged with the second upper rod locking hole 180 when reaching a position corresponding to the second upper rod locking hole 180, thereby locking the third upper rod 26 in the unfolded position.

Specifically, the first locking structure 170 includes a first ferrule 186, the third upper rod 26 is provided with a first mounting hole 188, the first seat 172 has a first mounting groove 190 corresponding to the first mounting hole 188, the first ferrule 186 has a first peripheral portion 192 sleeved on the periphery of the third upper rod 26 and a first protruding portion 194 extending inward from the first peripheral portion 192, and the first protruding portion 194 is mated with the first mounting hole 188 and the first mounting groove 190, so as to fix the first seat 172 to the third upper rod 26. The first peripheral portion 192 has an opening that is non-closed in its circumferential direction, so as to facilitate installation of the first ferrule 186.

Specifically, in the present embodiment, the first protruding portions 194 are provided in two substantially symmetrical portions, and accordingly, the first mounting holes 188 and the first mounting grooves 190 are provided in two corresponding portions, respectively. Of course, the first boss 194 and the first mounting hole 188 and the first mounting groove 190 which are engaged therewith may be provided in one or two or more.

The first housing 172 has a first housing transverse cavity 196 and a first housing longitudinal cavity 198. The extending direction of the first horizontal cavity 196 is substantially perpendicular to the longitudinal extending direction of the third upper rod 26, the extending direction of the first vertical cavity 198 is substantially parallel to the longitudinal extending direction of the third upper rod 26, and the first horizontal cavity 196 is communicated with the first vertical cavity 198.

Further, the first longitudinal sliding block 176 has an upper mating surface 200, and the angle a formed by the upper mating surface 200 and the longitudinal extending direction of the third upper rod 26 is an acute angle. The first cross slide 174 has a lower mating surface 202 that mates with the upper mating surface 200, and the angle b formed by the lower mating surface 202 and the sliding direction of the first cross slide 174 is also an acute angle, in this embodiment, the lengthwise extending direction of the third upper rod 26 is a vertical direction, and the sliding direction of the first cross slide 174 is a horizontal direction, where the vertical direction and the horizontal direction refer to the directions in which the cleaner in fig. 1 is in the working state. Thus, the sum of angle a and angle b is 90 degrees.

In the preferred embodiment, the upper mating surfaces 200 are spaced apart by two, and correspondingly, the lower mating surfaces 202 are spaced apart by two. Of course, the upper mating surface 200 may be provided as one or more than two, and the lower mating surface 202 may be provided as one or more than two. In detail, the first longitudinal slide 176 includes a first longitudinal slide left side wall 204, a first longitudinal slide right side wall 206 spaced apart from the first longitudinal slide left side wall 204 by a certain distance, and a first longitudinal slide end wall 208 connecting the first longitudinal slide left side wall 204 and the first longitudinal slide right side wall 206, the upper mating surface 200 includes an upper left mating surface 210 provided on the first longitudinal slide left side wall 204 and an upper right mating surface 212 provided on the first longitudinal slide right side wall 206, the upper left mating surface 210 and the first longitudinal slide end wall 208 are respectively located at opposite ends of the first longitudinal slide left side wall 204, and the upper right mating surface 212 and the first longitudinal slide end wall 208 are respectively located at opposite ends of the first longitudinal slide right side wall 206. The first longitudinal slide end wall 208 is coupled to the control rod 178, and in the preferred embodiment, the first longitudinal slide end wall 208 is coupled to the control rod 178 such that when the control rod 178 is depressed, the first longitudinal slide 176 is driven to move downward, thereby causing the first transverse slide 174 to move the first locking pin 175 inward to disengage the first locking pin 175 from the second upper rod locking hole 180. Further, to increase the mating area of the control rod 178 and the first longitudinal slide end wall 208, the lower end of the control rod 178 is provided with a pressing member 214, and specifically, the area of the pressing member 214 in the horizontal direction is larger than the area of the first longitudinal slide end wall 208 in the horizontal direction.

The first slider 174 includes a first main body 216, a first left protrusion 218 and a first right protrusion 220 extending outward from the first main body 216, and the first lock pin 175 is provided to the first main body 216. Specifically, the lower mating surface 202 includes a lower left mating surface 222 provided on the first left boss 218 and a lower right mating surface 224 provided on the first right boss 220. Wherein the lower left mating surface 222 mates with the upper left mating surface 210 and the lower right mating surface 224 mates with the upper right mating surface 212. In addition, the first body portion 216 is located in the space between the first longitudinal slide left side wall 204 and the first longitudinal slide right side wall 206. Further, the width of the first main body 216 is approximately equal to the distance between the first left side wall 204 and the first right side wall 206, that is, the outer side surface of the first main body 216 is approximately fit with the first left side wall 204 and the first right side wall 206, but a relative sliding movement can be generated, so that the sliding movement of the first longitudinal sliding block 176 is more stable. In detail, the first body part 216 includes a first left side part 226, a first right side part 228 spaced apart from the first left side part 226 by a certain distance, and a first end part 230 connecting the first left side part 226 and the first right side part 228, and the first locking pin 175 is provided at the first end part 230. To increase the strength of the first slider 174, the first body portion 216 of the first slider 174 further includes a first bottom portion 232 connecting the first left side portion 226, the first right side portion 228, and the first end portion 230.

Further, the first locking structure 170 also includes a first outer spring 234 that urges the first locking pin 175 to remain engaged with the second upper stem upper locking hole 180 or the second upper stem lower locking hole 182. When the control rod 178 is operated to move downwards, the first longitudinal sliding block 176 is pressed to move downwards, so that the first transverse sliding block 174 drives the first locking pin 175 to move in a direction of being separated from the second upper rod upper locking hole 180 or the second upper rod lower locking hole 182. When the third upper rod 26 needs to be unfolded, the control rod 178 is pressed down, the control rod 178 pushes the first longitudinal sliding block 176 to move downwards, the first transverse sliding block 174 is pushed to move away from the second upper rod lower locking hole 182 against the elastic force of the first outer spring 234, so that the first locking pin 175 is disengaged from the second upper rod lower locking hole 182, then the third upper rod 26 can be pulled upwards to unfold the third upper rod 26, the control rod 178 is released, when the third upper rod 26 is pulled upwards to a position where the first locking pin 175 corresponds to the second upper rod upper locking hole 180, the first transverse sliding block 174 drives the first locking pin 175 to move towards the direction matched with the second upper rod upper locking hole 180 under the elastic force of the first outer spring 234, and the first outer spring 234 keeps the first locking pin 175 matched with the second upper rod upper locking hole 180, so that the third upper rod 26 is kept in an unfolded state. The method of collapsing the third upper rod 26 is similar to that of expanding and will not be described in detail.

In the present preferred embodiment, the first outer spring 234 is provided as a compression spring. The first outer spring 234 is disposed in the first housing transverse cavity 196, one end of the first outer spring 234 abuts against the first transverse slider 174, and the other end of the first outer spring 234 abuts against the first housing 172.

In addition, the second upper rod 24 is provided with a second upper rod end sleeve 236, and when the third upper rod 26 is in the unfolded state relative to the second upper rod 24, the second upper rod end sleeve 236 is disposed at one end of the second upper rod 24 which is closer to the third upper rod 26. Specifically, the second upper rod end sleeve 236 is disposed on the inner side of the second upper rod 24, and a clamping structure is adopted between the second upper rod end sleeve and the second upper rod 24. Typically, the second upper rod 24 is provided with a clamping hole 238, and the second upper rod end sleeve 236 is provided with a clamping protrusion 240 that is matched with the clamping hole 238. Typically, the second upper rod end 236 is a plastic piece and the first upper rod 22, the second upper rod 24, and the third upper rod 26 are metal pieces. Of course, other materials may be used for the second upper rod end sleeve 236, the first upper rod 22, the second upper rod 24, and the third upper rod 26.

The second upper rod end sleeve 236 abuts the third upper rod 26 or the first locking structure 170, and the second upper rod end sleeve 236 prevents the third upper rod 26 from being pulled out of the second upper rod 24 when the third upper rod 26 is deployed. Specifically, the second upper rod end cover 236 is abutted against the ferrule, and of course, the second upper rod end cover 236 may be abutted against the third upper rod 26 or the first seat 172.

As shown in fig. 42 to 44, a second locking structure 242 is provided between the first upper lever 22 and the second upper lever 24. The second locking structure 242 locks the second upper rod 24 when the first locking structure 170 is moved away from the second locking structure 242, and urges the second locking structure 242 to release the second upper rod 24 when the third upper rod 26 is retracted into the second upper rod 24 such that the first locking structure 170 abuts the second locking structure 242. That is, the first locking structure 170 no longer contacts the second locking structure 242, and when the pressure on the second locking structure 242 is released, the second locking structure 242 locks the second upper rod 24. Specifically, the second locking structure 242 includes a second base 244 fixedly disposed on the second upper rod 24, a second transverse slider 246 slidably disposed in the second base 244, a second locking pin 248 fixedly disposed on the second transverse slider 246, and a second longitudinal slider 250 coupled to the second transverse slider 246, and the first upper rod 22 is provided with a first upper rod locking hole 252 capable of being coupled to or uncoupled from the second locking pin 248.

The second locking structure 242 also includes a second ferrule (not shown) with which the second housing 244 and the second upper rod 24 are secured together in a manner similar to the connection between the first housing 172 and the third upper rod 26, and will not be described in detail herein.

The second housing 244 has a second housing transverse cavity and a second housing longitudinal cavity. The extending direction of the second horizontal cavity is approximately perpendicular to the longitudinal extending direction of the second upper rod 24, the extending direction of the second vertical cavity is approximately parallel to the longitudinal extending direction of the second upper rod 24, and the second horizontal cavity is communicated with the second vertical cavity.

The second longitudinal slide 250 and the second lateral slide 246 are coupled in a manner similar to the first longitudinal slide 176 and the first lateral slide 174, and are abutted by inclined surfaces. When the second longitudinal slide 250 is operatively slid in a direction toward the work head assembly 20, the second lateral slide 246 is urged to slide the second locking pin 248 from the engaged position with the first upper rod locking hole 252 to the disengaged position with the first upper rod locking hole 252.

In the preferred embodiment, the second longitudinal slide 250 is identical to the first longitudinal slide 176 and the second lateral slide 246 is identical to the first lateral slide 174 for ease of manufacture. Of course, the second longitudinal slide 250 may be provided differently from the first longitudinal slide 176, and likewise, the second lateral slide 246 may be provided differently from the first lateral slide 174. Specifically, the second longitudinal sliding block 250 has an upper mating surface 260, and an included angle c formed by the upper mating surface 260 and the longitudinal extending direction of the second upper rod 24 is an acute angle. The second traverse slide 246 has a lower mating surface 262, and an angle d formed by the lower mating surface 262 and the sliding direction of the second traverse slide 246 is also an acute angle. Also in this embodiment, the longitudinal extension direction of the second upper rod 24 is a vertical direction, and the sliding direction of the second cross slide 246 is a horizontal direction, where the vertical direction and the horizontal direction are referred to the direction in which the cleaner is in the working state in fig. 1. Thus, the sum of the angle c and the angle d is 90 degrees. When the second longitudinal slide 250 is pushed in a direction approaching the work head assembly 20, the second lateral slide 246 is pushed to slide the second locking pin 248 from the engaged position with the first upper rod upper locking hole 252 to the disengaged position with the first upper rod upper locking hole 252 due to the engagement of the upper and lower engaging surfaces 260 and 262 as the second longitudinal slide 250 slides downward.

Further, the second locking structure 242 also includes a second outer spring 263 that urges the second locking pin 248 into retaining engagement with the first upper rod locking hole 252. When the second upper rod 24 is in the unfolded state with respect to the first upper rod 22, the second locking pin 248 is coupled with the first upper rod upper locking hole 252.

The first upper rod 22 is further provided with a first upper rod lower locking hole 264, the second locking structure 242 further comprises a pin 266 slidably disposed in the second transverse cavity of the second base 244, the pin 266 is capable of being coupled to or uncoupled from the first upper rod lower locking hole 264, and the second locking structure 242 further comprises an inner spring 268 for urging the pin 266 to remain coupled to the first upper rod lower locking hole 264. Further, the elastic coefficient of the inner spring 268 is smaller than that of the second outer spring 263, and the original length of the inner spring 268 is not larger than that of the second outer spring 263. Specifically, the inner spring 268 is a compression spring. When the second upper rod 24 is in a contracted state with respect to the first upper rod 22, the second locking pin 248 and the first upper rod upper locking hole 252 are offset from each other in the lengthwise extending direction of the second upper rod 24, the second locking pin 248 remains disengaged from the first upper rod upper locking hole 252, and the pin shaft 266 is mated with the first upper rod lower locking hole 264. In addition, the second seat 244 is further provided with a guide hole for passing through the pin shaft 266.

Specifically, the second slider 246 includes a second body 270, a second left protrusion 272 and a second right protrusion 274 extending outward from the second body 270, and the second locking pin 248 is provided to the second body 270. Specifically, the lower mating surface 262 includes a lower left mating surface 276 provided on the second left-hand boss 272 and a lower right mating surface 278 provided on the second right-hand boss 274. In detail, the second body part 270 includes a second left side part 280, a second right side part 282 spaced apart from the second left side part 280 by a certain distance, and a second end part 284 connecting the second left side part 280 and the second right side part 282, and the second locking pin 248 is provided at the second end part 284. To increase the strength of the second slider 246, the second body portion 270 of the second slider 246 further includes a second bottom portion 286 connecting the second left side portion 280, the second right side portion 282, and the second end portion 284.

The pin 266 extends into the space between the second left side 280 and the second right side 282, one end of the inner spring 268 abuts the second cross slide 246 and the other end of the inner spring 268 abuts the pin 266, thereby urging the pin 266 to remain mated with the first upper rod lower locking aperture 264. Further, a stop portion 290 is provided on the outer periphery of the pin shaft 266, a stop portion 292 is provided at one end of the second slider 246 opposite to the second end 284, one side of the stop portion 290 abuts against the stop portion 292, and the other side of the stop portion 290 abuts against the other end of the inner spring 268. In the preferred embodiment, to provide a compact configuration, the inner spring 268 is at least partially located in the space between the second left side portion 280 and the second right side portion 282. More preferably, the inner spring 268 is entirely located in the space between the second left side portion 280 and the second right side portion 282. Specifically, the second outer spring 263 is sleeved on the periphery of the pin shaft 266, and part of the inner spring 268 is sleeved on the periphery of the pin shaft 266. The second outer spring 263 and the inner spring 268 are distant from each other in the extending direction of the pin shaft 266.

The method of retracting the third upper rod 26 will be described in detail. With further reference to fig. 45-47, when the control lever 178 is depressed, the pressing member 214 on the control lever 178 pushes the first longitudinal slide 176 downward along the longitudinal extension direction of the third upper lever 26, thereby causing the first locking pin 175 to disengage from the second upper lever upper locking hole 180, and then the third upper lever 26 can be retracted into the second upper lever 24, and when the third upper lever 26 drives the first locking structure 170 downward relative to the second upper lever 24 until the first seat 172 is just in contact with the second longitudinal slide 250, retraction of the third upper lever 26 is stopped, and at this time, the first seat 172 does not push the second longitudinal slide 250 downward. At this point the third upper rod 26 is in the contracted state and the second upper rod 24 is still in the expanded state, i.e., the upper rod assembly is in the second expanded state.

When the upper rod assembly is in the second deployed state, the second outer spring 263 urges the second locking pin 248 to mate with the first upper rod locking hole 252 to retain the second upper rod 24 in the deployed position. In addition, the limiting portion 292 of the second transverse slider 246 abuts against the stop portion 290 of the pin shaft 266, so that the pin shaft 266 is located in the first upper lever 22.

The method of retracting the second upper rod 24 will be described in detail. With further reference to fig. 39-41, continuing to retract the third upper rod 26 inwardly toward the second upper rod 24, the third upper rod 26 continues to drive the first locking structure 170 to move downwardly along the lengthwise extending direction of the third upper rod 26, so that the first base pushes the second longitudinal slide 250 to move downwardly relative to the second base, the second longitudinal slide 250 pushes the second transverse slide 246 against the elastic force of the second external spring 263 to drive the second locking pin 248 to move inwardly toward the first upper rod 22, the second transverse slide 246 causes the second locking pin 248 to disengage from the first upper rod upper locking hole 252, and then the second upper rod 24 can be retracted into the first upper rod 22. During the shrinkage process of sliding the second upper rod 24 into the first upper rod 22, the pin shaft 266 is located in the first upper rod 22, when the second upper rod 24 drives the second locking structure 242 to shrink downwards to the lowest position, the pin shaft 266 is located at a position corresponding to the first upper rod lower locking hole 264, the pin shaft 266 is matched with the first upper rod lower locking hole 264 under the pushing of the inner spring 268, and meanwhile, the pin shaft 266 pushes the second transverse sliding block 246 to move away from the first upper rod upper locking hole 252 against the force of the second outer spring 263. The pin 266 mates with the first upper rod lower locking aperture 264 to retain the second upper rod 24 in the retracted position.

When the third upper rod 26 is to be unlocked to deploy the third upper rod 26, the control rod 178 is depressed, the first longitudinal sliding block 176 urges the first transverse sliding block 174 to move away from the second upper rod lower locking hole 182 against the elastic force of the first outer spring 234, so that the first locking pin 175 is disengaged from the second upper rod lower locking hole 182, and then the handle 10 is pulled upward, so that the third upper rod 26 is driven to move upward, thereby deploying the third upper rod 26. When the third upper rod 26 is unfolded upward to the uppermost position, the control rod 178 is released, and the first slider 174 is moved toward the second upper rod locking hole 180 by the elastic force of the first outer spring 234, eventually causing the first locking pin 175 to be engaged with the second upper rod locking hole 180, thereby maintaining the third upper rod 26 in the unfolded position.

When the second upper rod 24 is to be unfolded, since the pressure applied to the second longitudinal slide 250 is removed, the pin shaft 266 is disengaged from the first upper rod upper locking hole 252 by the second outer spring 263, the locking between the second upper rod 24 and the first upper rod 22 is released, and then the handle 10 is pulled upward continuously, so that the second upper rod 24 is moved upward to be extended from the first upper rod 22, and when the second upper rod 24 is unfolded to a position corresponding to the position of the second locking pin 248 and the first upper rod upper locking hole 252, the second locking pin 248 is engaged with the first upper rod upper locking hole 252 by the elastic force of the second outer spring 263, thereby maintaining the second upper rod 24 at the unfolded position.

As shown in fig. 51 to 54, a cable is connected between the power switch 52 and the motor 42, the cable includes a first cable 294 electrically connected to the power switch 52 and a second cable 296 electrically connected to the motor 42 (see fig. 3), and the first cable 294 is electrically connected to the second cable 296. Specifically, the first cable 294 includes a cable fixed end 298 and a cable free end 300, wherein the cable fixed end 362 is fixed relative to the third upper rod 26 and the cable free end 300 is fixed relative to the second upper rod 24. Specifically, the cable fixing end 298 is connected to the power switch 52, and the cable free end 300 is disposed at an end of the second upper rod 24 closer to the first upper rod 22, and the cable free end 300 is electrically connected to the second cable 296. Preferably, both the first cable 294 and the second cable 296 are flat cables. In addition, the first cable 294 and the second cable 296 may also be configured as one cable having a fixed connection point with the second locking structure 242 at a middle portion thereof, such that the two cables at the upper and lower portions of the second locking structure 242 have a fixed length.

The cleaner further includes a cable payout structure provided in the upper pole assembly 12 for paying-off and paying-off the first cable 294. The cable pay-off structure includes a pay-off spring 302, a first pulley assembly 304 movably disposed within the third upper rod 26, and a second pulley assembly 306 fixedly disposed at a lower end of the third upper rod 26. Specifically, the pay-off spring 302 is a tension spring. The spring fixing end 308 of the paying-off spring 302 is fixed relative to the third upper rod 26, and in this embodiment, the spring fixing end 308 is fixedly connected to the handle 10, the spring free end 310 of the paying-off spring 302 is connected to the first pulley assembly 304, the second pulley assembly 306 is connected to the third upper rod 26, and preferably, the second pulley assembly 306 is disposed at an end of the third upper rod 26 away from the handle 10. Of course, the spring fixing end 308 may also be fixedly connected to the third upper rod 26, and in this case, the spring fixing end 308 is fixedly connected to an end of the third upper rod 26 adjacent to the handle 10.

Further, the first pulley assembly 304 includes a first pulley bracket 312 coupled to the spring free end 310, and a first pulley 316 rotatably disposed on the first pulley bracket 312 via a first pulley shaft 314. The axis of the first pulley shaft 314 is substantially perpendicular to the lengthwise extension direction of the third upper rod 26. Wherein the first pulley bracket 312 is fixedly coupled to the spring free end 310. The first pulley bracket 312 includes a first sidewall 318, a second sidewall 320 opposite to the first sidewall 318 and spaced apart from the first sidewall 318, a top wall 322 connecting the first sidewall 318 and the second sidewall 320, and a bracket connecting portion 324 disposed on the top wall 322, wherein the bracket connecting portion 324 and the first sidewall 318 and the second sidewall 320 are respectively disposed on two sides of the top wall 322. In the preferred embodiment, the first pulley bracket 312 further includes a bottom wall 326 of the first side wall 318 and the second side wall 320, wherein the top wall 322, the first side wall 318, and the second side wall 320 have the same width, and the bottom wall 326 has a width smaller than the width of the first side wall 318 and the second side wall 320. The bracket connecting portion 324 is connected with the free end 310 of the spring, specifically, a connecting hole 328 is provided on the bracket connecting portion 324, and the free end 310 of the spring is hooked on the connecting hole 328.

The second pulley assembly 306 includes a second pulley bracket 330, and a second pulley 334 rotatably provided to the second pulley bracket 330 by a second pulley shaft 332. The axis of the second pulley shaft 332 is substantially perpendicular to the lengthwise extension direction of the third upper rod 26. The second pulley bracket 330 includes a first side portion 336, a second side portion 338 opposite to the first side portion 336 and spaced apart from the first side portion 336, and a connecting portion 340 connecting the first side portion 336 and the second side portion 338. Preferably, the outer diameters of the first pulley 316 and the second pulley 334 are the same. Of course, the outer diameters of the first pulley 316 and the second pulley 334 may be set to be different.

Further, a second pulley bracket 330 is provided in the third upper rod 26 at an end remote from the handle 10. In the preferred embodiment, the second pulley bracket 330 is fixedly disposed on the first locking structure 170. Specifically, the second pulley bracket 330 is fixedly disposed on the first base 172. The second pulley bracket 330 and the first seat 172 may be integrally formed, and of course, other fastening manners such as bolting and riveting may be used between the second pulley bracket 330 and the first seat 172.

The first seat 172 is provided with a wire passing groove 342 for accommodating the cable, and the wire passing groove 342 extends along the longitudinal extending direction of the third upper rod 26 and penetrates through the third upper rod 26 in the longitudinal extending direction. The cable fixing end 298 of the first cable 294 is connected to the power switch 52, then passes downward around the second pulley 334 of the second pulley assembly 306, passes upward around the first pulley 316 of the first pulley assembly 304, finally passes downward through the wire passing slot 342 of the first seat 172, passes through the first seat 172, and fixedly connects the cable free end 300 of the first cable 294 with respect to the second upper rod 24, and the cable free end 300 is disposed at an end of the second upper rod 24 closer to the first upper rod 22, and electrically connects the cable free end 300 with the second cable 296.

In the preferred embodiment, the cable free end 300 is fixedly coupled to the second locking structure 242. Specifically, the cable free end 300 is fixedly connected to the second housing 244.

With further reference to fig. 52, as the third upper rod 26 is extended relative to the second upper rod 24, the payout spring 302 is stretched such that the vertical distance between the first pulley assembly 304 and the second pulley assembly 306 is closest, and the vertical distance Z2 between the cable fixed end 298 and the cable free end 300 is greatest.

Referring to fig. 53, as the third upper rod 26 is retracted relative to the second upper rod 24, as the third upper rod 26 is retracted into the second upper rod 24, the first cable 294 is relaxed and the first pulley assembly 304 is no longer pulled, the first pulley assembly 304 moves away from the second pulley assembly 306 under the elastic tension of the payout spring 302, thereby trapping the relaxed first cable 294 between the first pulley assembly 304 and the second pulley assembly 306, and as the third upper rod 26 is fully retracted into the second upper rod 24, the vertical distance between the first pulley assembly 304 and the second pulley assembly 306 is the farthest, at which point the vertical distance Z1 between the cable fixing end 298 and the cable free end 300 is the smallest. In the preferred embodiment, the cable free end 300 moves a distance of 2L relative to the cable fixed end 298 as the first pulley assembly 304 moves a distance of L relative to the cable fixed end 298.

In the preferred embodiment, the second cable 296 is disposed in the second upper rod 24 and is disposed at the lower portion of the second base 244. The cleaner also includes a control board electrically connected to the motor 42 to control the operation of the motor 42. Specifically, an upper end portion of the second cable 296 is fixedly connected with the second housing 244 and electrically connected with the cable free end 300, and a lower end portion of the second cable 296 is connected with the control board through the housing 32. Referring again to fig. 2 and 34, in addition, the perforations of the second cable 296 are located in the middle of the front side of the housing 32, and, when fully deployed, below the second locking features 242. And when fully deployed, the lowest point of the second cable 296 is below the perforations of the second cable 296. As such, when fully retracted, the second cable 296 can be snugly against the rear wall of the first upper stem 22, sandwiched between the rear wall of the second upper stem 24 and the rear wall of the first upper stem 22. Further, since there is a gap of at least Y4 in width between the rear wall of the first upper lever 22 and the rear wall of the second upper lever 24, the second cable 296 can be completely accommodated.

As shown in fig. 54 to 57, the present invention provides a second preferred embodiment which is different from the first embodiment in the cable pay-off structure, and which is otherwise identical to the first embodiment, and only the differences will be described in detail.

As in the first embodiment, the first pulley assembly 344 is connected to the free end of the payout spring 346, and the second pulley assembly 354 is fixed to the first housing 172. In the preferred embodiment, the first pulley assembly 344 includes a first pulley bracket 348, a first pulley 350 and a third pulley 352 rotatably disposed on the first pulley bracket 348, wherein the first pulley 350 and the third pulley 352 are coaxially disposed on the first pulley bracket 348 through a same pulley shaft.

The second pulley assembly 354 includes a second pulley bracket 355, a second pulley 356 and a fourth pulley 358 rotatably provided to the second pulley bracket 355, wherein the second pulley 356 and the fourth pulley 358 are coaxially provided to the second pulley bracket 355 through the same pulley shaft. Specifically, the first pulley 350 is positioned on the same vertical line as the second pulley 356, and the third pulley 352 is positioned on the same vertical line as the fourth pulley 358. The outer diameters of the first pulley 350 and the fourth pulley 358 are the same, and the outer diameters of the third pulley 352 and the second pulley 356 are the same. Specifically, the outer diameters of the first pulley 350 and the fourth pulley 358 are greater than the outer diameters of the third pulley 352 and the second pulley 356.

The cable fixing end 362 of the first cable 360 is also connected to the power switch 52, and then passes from the cable fixing end 362 to the cable free end 364, downward around the second pulley 356 on the second pulley assembly 354, upward around the third pulley 352 of the first pulley assembly 344, downward around the fourth pulley 358 of the second pulley assembly 354, upward around the first pulley 350 of the first pulley assembly 344, downward through the first housing 172, and then through the first housing 172, and fixedly connects the cable free end 364 of the first cable 360 to the second housing 244. Likewise, the cable further includes a second cable (not shown) electrically connected to the cable free end 364 of the first cable 360 in the same manner as the first embodiment and will not be described in detail herein. In the preferred embodiment, when the first pulley assembly 344 is moved a distance of L relative to the cable fixing end 362, the cable free end 364 is moved a distance of 4 x L relative to the cable fixing end 362.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims

1. A vacuum cleaner comprising a main body structure (14), an air inlet communicating with an inner cavity of the main body structure (14), an upper pole assembly (12) extending upward from the main body structure (14) along a longitudinal axis, characterized in that,

the upper rod assembly comprises a third upper rod (26), a second upper rod (24) connected with the third upper rod in a telescopic way and a first upper rod (22) connected with the second upper rod (24) in a telescopic way, a first locking structure (170) is arranged between the third upper rod (26) and the second upper rod (24), a second locking structure is arranged between the second upper rod and the first upper rod, when the first locking structure leaves the second locking structure, the second locking structure locks the second upper rod, and when the third upper rod is retracted into the second upper rod to enable the first locking structure to abut against the second locking structure, the second locking structure is caused to release the second upper rod;

The second locking structure (242) comprises a second base (244) fixedly arranged on the second upper rod (24), a second transverse sliding block (246) transversely slidably arranged on the second base (244), a second locking pin (248) fixedly arranged on the second transverse sliding block (246) and a pin shaft (266) transversely slidably arranged relative to the second base (244); the first upper rod (22) is provided with a first upper rod upper locking hole (252) which can be matched with or separated from the second locking pin (248) and a first upper rod lower locking hole (264) which can be matched with or separated from the pin shaft (266);

wherein the second locking structure (242) further comprises a second outer spring (263) urging the second locking pin (248) into retaining engagement with the first upper rod upper locking hole (252) and an inner spring (268) urging the pin shaft (266) into retaining engagement with the first upper rod lower locking hole (264).

2. A vacuum cleaner according to claim 1, wherein,

the first locking structure (170) comprises a first longitudinal slide (176), a first locking pin (175) which is not relatively displaced in the longitudinal axis direction relative to the third upper rod, and a control rod (178) which is operatively movably arranged in the third upper rod (26) and is matched with the first longitudinal slide, a second upper rod upper locking hole (180) and a second upper rod lower locking hole (182) which can be matched with or disconnected from the first locking pin (175) are arranged on the second upper rod (24), and when the control rod (178) is pressed down in the longitudinal axis direction, the control rod (178) enables the first longitudinal slide (176) to slide, so that the first locking pin (175) is caused to slide from a matched position with the second upper rod upper locking hole (180) or the second upper rod lower locking hole (182) to a disconnected position with the second upper rod upper locking hole (180) or the second upper rod lower locking hole (182).

3. A vacuum cleaner according to claim 2, wherein,

the first locking structure (170) further comprises a first base (172) arranged on the third upper rod (26) and a first transverse sliding block (174) transversely slidably arranged on the first base (172), the first locking pin (175) is fixedly arranged on the first transverse sliding block (174), the control rod (178) is pressed down so that the first longitudinal sliding block (176) slides relative to the first base along the longitudinal axis direction, and accordingly the first transverse sliding block (174) is driven to drive the first locking pin (175) to slide from a matched connection position with the second upper rod upper locking hole (180) or the second upper rod lower locking hole (182) to a release position with the second upper rod upper locking hole (180) or the second upper rod lower locking hole (182).

4. A vacuum cleaner according to claim 3, wherein,

the lower extreme of control lever (178) be equipped with support casting die (214) of first indulge slider (176) butt, the upper end of control lever is equipped with adjusting key (184), adjusting key (184) activity sets up in handle (10) for the operator to operate.

5. A vacuum cleaner according to claim 3, wherein,

the first locking structure (170) further includes a first outer spring (234) that urges the first locking pin (175) to remain engaged with the second upper stem upper locking hole (180) or the second upper stem lower locking hole (182).

6. A vacuum cleaner according to claim 5, wherein,

the first outer spring (234) is a pressure spring, one end of the first outer spring (234) is abutted against the first transverse sliding block (174), and the other end of the first outer spring (234) is abutted against the first seat body (172).

7. A vacuum cleaner according to claim 3, wherein,

the first longitudinal sliding block (176) is provided with an upper matching surface (200), the first transverse sliding block (174) is provided with a lower matching surface (202) matched with the upper matching surface (200), the upper matching surface (200) forms an acute angle with the longitudinal direction, and the lower matching surface (202) forms an acute angle with the sliding direction of the first transverse sliding block (174).

8. A vacuum cleaner according to claim 7, wherein,

the first longitudinal sliding block (176) comprises a first longitudinal sliding block left side wall (204), a first longitudinal sliding block right side wall (206) and a first longitudinal sliding block end wall (208), wherein the first longitudinal sliding block right side wall (206) is separated from the first longitudinal sliding block left side wall (204) by a certain distance, the first longitudinal sliding block end wall (208) is connected with the first longitudinal sliding block left side wall (204) and the first longitudinal sliding block right side wall (206), the upper matching surface (200) comprises an upper left matching surface (210) arranged on the first longitudinal sliding block left side wall (204) and an upper right matching surface (212) arranged on the first longitudinal sliding block right side wall (206), and the first longitudinal sliding block end wall (208) is matched with the control rod (178).

9. A vacuum cleaner according to claim 8, wherein,

the first transverse sliding block comprises a first main body part, a first left side bulge and a first right side bulge, wherein the first left side bulge and the first right side bulge extend outwards from the first main body part, the first locking pin is arranged on the first main body part, and the lower matching surface comprises a lower left matching surface arranged on the first left side bulge and matched with the upper left matching surface and a lower right matching surface arranged on the first right side bulge and matched with the upper right matching surface.

10. A vacuum cleaner according to claim 9, wherein,

the first body portion includes a first left side portion, a first right side portion spaced apart from the first left side portion by a certain distance, and a first end portion connecting the first left side portion and the first right side portion, and the first locking pin is provided at the first end portion.

11. A vacuum cleaner according to claim 3, wherein,

the first seat body is provided with a first seat body transverse cavity for accommodating the first transverse sliding block and a first seat body longitudinal cavity for accommodating the first longitudinal sliding block, the extending direction of the first seat body transverse cavity is approximately perpendicular to the extending direction of the first seat body longitudinal cavity, and the first seat body transverse cavity is communicated with the first seat body longitudinal cavity.

12. A vacuum cleaner according to claim 3, wherein,

the first locking structure (170) further comprises a first clamping sleeve (186), the third upper rod (26) is provided with a first mounting hole (188), the first base body (172) is provided with a first mounting groove (190) corresponding to the first mounting hole (188), the first clamping sleeve (186) is provided with a first peripheral part (192) sleeved on the periphery of the third upper rod (26) and a first protruding part (194) extending inwards from the first peripheral part (192), and the first protruding part (194) is matched with the first mounting hole (188) and the first mounting groove (190) so as to fix the first base body (172) on the third upper rod (26).

13. A vacuum cleaner according to claim 2, wherein,

the second upper rod (24) is provided with a second upper rod end sleeve (236), and the second upper rod end sleeve (236) is abutted against the third upper rod (26) or the first locking structure (170) so as to prevent the third upper rod (26) from being pulled out of the second upper rod (24).

14. A vacuum cleaner according to claim 3, wherein,

the second locking structure (242) further comprises a second longitudinal sliding block (250) which is matched with the second transverse sliding block (246), the first base body is abutted with the second longitudinal sliding block (250) and enables the second longitudinal sliding block to longitudinally slide relative to the second base body, and further the second transverse sliding block (246) drives the second locking pin (248) to slide from a matched position with the first upper rod upper locking hole (252) to a disengaged position with the first upper rod upper locking hole (252).

15. A vacuum cleaner according to claim 14, wherein,

the inner spring (268) has an elastic coefficient smaller than that of the second outer spring (263), and the original length of the inner spring (268) is not longer than that of the second outer spring (263).

16. A vacuum cleaner according to claim 14, wherein,

when the first upper rod (22) continues to drive the first locking structure (170) to move downwards to a certain position along the longitudinal direction, the first base body pushes the second longitudinal sliding block (250) to move downwards relative to the second base body, so that the second longitudinal sliding block (250) drives the second transverse sliding block (246) to drive the second locking pin (248) to move transversely, and the second locking pin (248) is disengaged from the first upper rod locking hole (252).

17. A vacuum cleaner according to claim 14, wherein,

the second vertical slider (250) has the same structure as the first vertical slider (176), and the second horizontal slider (246) has the same structure as the first horizontal slider (174).